| Entries |
| Document | Title | Date |
|---|
| 20080210028 | DRIVING MECHANISM AND CUTTING APPARATUS HAVING THE DRIVING MECHANISM - A driving mechanism having a driving unit in which a drive source is connected to a feed screw shaft and a feed nut is in screw engagement with the feed screw shaft and connected to an active element through a sliding body, wherein the active element is moved by being driven by the driving unit. An inner ring of a bail bearing for supporting the feed screw shaft is fixed to the outer periphery of a free end portion of the feed screw shaft, and an outer ring elastic body which supports an outer ring of the ball bearing slidably in the axial direction of the feed screw shaft and which absorbs vibration of the feed screw shaft is disposed at the inner periphery of a tubular portion for containing the ball, bearing at a terminal support portion. | 09-04-2008 |
| 20080223160 | Feed screw mechanism - In a feed screw mechanism in which an internally threaded member | 09-18-2008 |
| 20080236312 | BEARING UNIT AND LINEAR UNIT EQUIPPED THEREWITH - A bearing unit has a housing and a connecting element that is supported so that it is able to rotate around a rotation axis in the housing and is for producing a non-rotating connection between a drive shaft and a threaded spindle of a screw drive, in which at its end oriented toward the threaded spindle, the connecting element has a recess extending coaxial to the rotation axis for accommodating an end section of the threaded spindle, the end of the connecting element oriented toward the threaded spindle has at least one slot that is narrowable by a element; and a linear unit can be equipped with a bearing unit of this kind. | 10-02-2008 |
| 20080257080 | Linear Motion Assembly With Monitoring System and Method of Monitoring - A linear motion assembly comprising a first body arranged for operable communication with a second body for translation of the first body and the second body relative to one another. At least one of the two bodies carries a sensor that detects and monitors information related to performance-indicating characteristics of the assembly. A control module is arranged in communication with the sensor and monitors at least one performance-indicating characteristic of the linear motion assembly by monitoring corresponding signals received from the sensor. The control module also detects and provides an indication of a discrepancy in the performance-indicating characteristic. | 10-23-2008 |
| 20080271552 | Drive device - In a drive device for opening and or closing the hatch of a motor vehicle, the drive including a spindle drive with a threaded spindle and a nut, with a clutch arranged between the rotary drive and the spindle drive, the clutch includes a shifting element, a clutch element, and a clutch disk non-rotatably connected to the threaded spindle. The shifting element is rotatably drivably connected to the rotary drive. The shifting element has an axially oriented helical first ramp and the clutch element has an axially oriented helical second ramp in opposed contact with said first ramp. Relative rotation of the shifting element and the clutch element causes relative axial displacement of the shifting element and the clutch element against a spring force. The clutch element has a clutch area movable into non-rotatable engagement with the clutch disk in response to the relative axial displacement of the shifting element and the clutch element such that the rotary drive for the spindle drive also operates the clutch. | 11-06-2008 |
| 20090095098 | HIGH FORCE ELECTRO-MECHANICAL ACTUATOR - An actuator is disclosed that utilizes a fixed screw attached at one end to an actuator housing. A rotatable tube concentric with the fixed screw rotationally drives a nut having threads engaging the threaded shaft, such that the nut moves axially relative to the tube, upon rotation of the tube. The actuator is axially coupled to the nut by thrust bearings such that the actuator rod does not rotate with the driven member. | 04-16-2009 |
| 20090120218 | HEAD MOVING DEVICE - A first wiring member and a second wiring member are formed of flexible wiring boards. The wiring member has a securing portion, an X extending portion, a first loop, and an X reverse portion; and the wiring member has a securing portion, an X extending portion, a first loop, and an X reverse portion. An intermediate securing portion, which is a boundary portion of the X reverse portion and a Y extending portion, and an intermediate securing portion, which is a boundary portion of the X reverse portion and a Y extending portion, are secured to an intermediate moving unit. The Y extending portions are bent at respective second loops, and head securing portions are secured to the head. When the head moves in an X direction, if the first loops move in a Y direction, the second loops move. | 05-14-2009 |
| 20090165581 | Ball screw device - In a ball screw device, a ball screw nut is rotated, causing a screw shaft to rectilinearly move in the axial direction, and the limit of the movement of the screw shaft is determined by a stopper. The ball screw device includes a hollow shaft that rotates together with the ball screw nut and in which the screw shaft is movably fitted. The hollow shaft is provided with a small diameter portion that exerts a dragging force on the screw shaft before the screw shaft reaches the limit, and a buffer layer is formed on a tip portion of the screw shaft. | 07-02-2009 |
| 20090193915 | SEPARABLE BALL SCREW - A separable ball screw comprises a screw shaft having a helical groove; a transfer ring, a plurality of balls and a separable nut being sequentially engaged to the screw shaft; the balls being distributed in the holes in the annular surface of the transfer ring; the transfer ring being hollowed, the retaining ring enclosing around the screw shaft; the plurality of holes being formed in the annular surface; the balls being received in the holes; the balls being received in the holes of the transfer ring as power transfer medium between the transfer ring and the screw shaft; and a separable nut having a hollow center; the separable nut enclosing around the transfer ring; an inner annular surface of the separable nut having at least one grooves; the inner annular surface and the groove serving for limiting positions of the balls. | 08-06-2009 |
| 20090241706 | TELESCOPIC ACTUATOR - A ring gear of a planetary reduction gear is screwed into an inner peripheral surface of a first housing through an opening thereof, while the thrust-receiving flange of a screw feed mechanism is held by the locknut screwed into an inner peripheral surface of a second housing through an opening thereof. In addition, the locknut and the ring gear face each other in an axial direction with a slight gap provided therebetween when the openings, respectively, of the first and second housings are connected to each other in the axial direction. Accordingly, even if the threaded connection of any one component of the locknut and the ring gear is loosened, the one component is prevented from moving by the other component. | 10-01-2009 |
| 20090249904 | Linear Actuator - A linear actuator comprises an outer tube, an intermediate tube and an inner tube which are polygonal in cross section. The outer tube is provided for the insertion of the intermediate tube and the inner tube, and the respective tubes are restricted with respect to one other. The outer tube is disposed with a push device having a screw and a nut that are screwed with each other and at least one tension adjusting device. At a top of a push pole is disposed a pulley pushing and supporting a pulling member whose two ends are respectively fixed between the inner tube and the outer tube, and another pulling member winding around a pulley is disposed between the intermediate tube and the inner tube. Thus, each pulling member can be pulled to change the tension so as to keep the stability. | 10-08-2009 |
| 20090260461 | ACTUATOR WITH ZERO POINT INITIALIZATION - The actuator has a shaft having a starting point resistance feature, and a low resistance portion. The actuator has a motor configured to rotate the shaft, the motor outputting a current feedback signal to indicate current exiting the motor. The actuator has a interference portion in proximity to the shaft, the interference portion configured to facilitate a resistance to shaft rotation when the shaft rotates, the resistance to shaft rotation causing a magnitude of the current signal to be greater when the starting point resistance feature passes in front of the interference portion than when the low resistance portion passes in front of the interference portion. | 10-22-2009 |
| 20090266187 | STEERING APPARATUS - Under a state of a normal temperature, a pitch B | 10-29-2009 |
| 20090277292 | Precision drive mechanism for long-travel microscopy stage - It is a goal of the proposed invention to provide “encoder-like” performance without incurring the cost and complexity of a closed loop system. | 11-12-2009 |
| 20090282934 | UNDER TRAVEL ACTUATOR, PARTICULARLY FOR AN AUTOMOBILE CLUTCH - An under travel actuator, particularly intended for an automobile clutch, including an engine (12) for the translation movement of a mobile gear (14) acting on a push stem (16) for the opening and closing of the clutch, the mobile gear including screw-nut means (22, 24) cooperating with two combined means of unidirectional driving in order to regulate the length of the push stem (16) according to the wear of the clutch surfaces subject to friction. | 11-19-2009 |
| 20090288507 | Control rod mechanism and system - A reversible control rod mechanism adapted for selectively and repeatedly rotating a shaft bidirectionally and thereby moving an attached load bidirectionally. | 11-26-2009 |
| 20090288508 | Leadscrew drive with annular-shell leadscrew - A leadscrew drive has a leadscrew follower, and a leadscrew. The leadscrew is formed as an elongated annular leadscrew shell having a thread-form outer surface. The leadscrew may be fabricated by depositing a leadscrew-shell material, such as nickel, onto a mandrel having a thread-form outer surface, so that the thread-form outer surface of the mandrel is replicated in an outer surface of the leadscrew-shell material. The mandrel may be removed, to leave a hollow leadscrew shell, or left in place. | 11-26-2009 |
| 20090320627 | Driving Device - A device for moving a movable structural component with respect to a stationary structural component includes a first fastening element which can be fastened to the movable structural component, and a housing tube having a second fastening element which can be fastened to the stationary structural component. A spindle drive for moving the first fastening element axially relative to the housing between an extended position and a retracted position includes a spindle nut arranged on a threaded spindle. An electric motor arranged in the housing tube drives one of the spindle nut and the threaded spindle in rotation. A power supply for supplying power to the electric motor includes a power output stage arranged in the housing tube, wherein the power output stage is shielded from electrical and magnetic fields. | 12-31-2009 |
| 20100000354 | Ball screw unit - A disc spring is provided between a ball screw nut and a hollow shaft, and another disc spring is provided between rolling bearings and a housing. When leftward motion of a screw shaft is stopped and a rotational inertia force is applied to the ball screw nut, these disc springs allow the ball screw nut to rotate to a certain degree. | 01-07-2010 |
| 20100077878 | DRIVE MECHANISM FOR ARTICLE DEHYDRATION - A drive mechanism for dehydrating a mop. The drive mechanism includes a base ( | 04-01-2010 |
| 20100162837 | BALLSCREW ASSEMBLY WITH DETECTION FEATURE - A ballscrew assembly for an actuator is provided. In an embodiment, the ballscrew assembly includes a ball nut assembly including a view port; a ballscrew provided within at least a portion of the ball nut assembly; an inner rod provided within the ballscrew in the direction of the longitudinal axis, the inner rod including an enlarged end portion; and a compression mechanism, such that at least a portion of the compression mechanism is provided between the enlarged end portion and the ballscrew. In another embodiment the assembly is configured such that when the inner rod is in a failed state, the compression mechanism provides a force that moves the visual indicator toward the view port. In another embodiment, the assembly includes a proximity sensor in addition to, or in lieu, of a view port to detect a failure. | 07-01-2010 |
| 20100175490 | ROUGH AND FINE MOVEMENT DEVICE, AND LIQUID SUPPLY DEVICE INCORPORATING THE SAME - A rough and fine movement device capable of moving a mobile body with high accuracy, and a liquid supply device incorporating such a device. First and second mobile bodies are movable along guide members with a connection member connecting the mobile bodies in a relatively movable manner. A first drive mechanism roughly moves the first mobile body by a first stroke. A second drive mechanism between the first and the second mobile bodies, finely moves the second mobile body relative to the first mobile body by a second stroke. The second drive mechanism on one of the first and second mobile bodies and includes an actuator having a contactor with a first contact surface. The other of the bodies includes a second contact surface which contacts the first contact surface. At least one of the first contact surface or the second contact surface is spherical. | 07-15-2010 |
| 20100186528 | Drive Device - A drive device includes a first fastening device ( | 07-29-2010 |
| 20100192713 | LINEAR ACTUATOR - Linear actuator device, comprising a housing ( | 08-05-2010 |
| 20100192714 | Spindle Drive of an Adjustment Device of a Motor Vehicle Seat - The spindle drive of an adjustment device of a motor vehicle seat comprises a spindle ( | 08-05-2010 |
| 20100224017 | Linear Actuator Device - A linear actuator device for pieces of furniture, e.g. beds, is described which include an adjustable section ( | 09-09-2010 |
| 20100242642 | Actuator with Linearly Movable Drive Screw - An actuator and vehicle system including a drive gear with an integral drive nut in meshing engagement with a drive screw. The drive screw is prevented from rotating such that rotation of the drive gear causes linear motion of the drive screw. | 09-30-2010 |
| 20100282008 | LINEAR ACTUATOR - A linear actuator comprising a cabinet ( | 11-11-2010 |
| 20100300224 | Spindle Drive - The present invention relates to a spindle drive with a first load path which is formed by a first nut which meshes with a threaded bolt and a second load path which is formed by a second nut which likewise meshes with the threaded bolt and which is arranged such that it is movable relative to the first nut in the axial direction of the threaded bolt in at least one state of the spindle drive, with the spindle drive having a sensor unit which is made such that it detects a relative movement between the first nut and the second nut. | 12-02-2010 |
| 20100319471 | RACK ASSIST TYPE ELECTRIC POWER STEERING SYSTEM - A rack assist type electric power steering system has a durable and simplified structure with reduced parts and has an improved productivity, so as to reduce the manufacturing cost thereof and remarkably reduce an assembling difficulty thereof. | 12-23-2010 |
| 20110000328 | THREADED SPINDLE ADJUSTING DRIVE - A threaded spindle adjusting drive, e.g., a vehicle seat adjusting drive, includes a threaded spindle, a drive gear operably connected to the threaded spindle, and a bearing system for supporting axial and radial forces from the threaded spindle and/or the drive gear on a jacketed pipe. The bearing system has an axial bearing element abutting on at least one radially inwardly directed crimp of the jacketed pipe for supporting axial forces and a radial bearing ring abutting on the inner circumference of the jacketed pipe for supporting radial forces. | 01-06-2011 |
| 20110011191 | Ball-screw drive with axial bearing - A ball-screw drive, which has a spindle nut arranged on a threaded spindle and an axial bearing which is arranged so as to act on the threaded spindle and which has a bearing part arranged so as to be rotatable relative to the threaded spindle. The bearing part is arranged so as to be captively retained on the threaded spindle by a captive retention means. | 01-20-2011 |
| 20110016998 | SPIRAL BODY LOCK AND METHOD - A spiral body lock including a mandrel; a sleeve; and at least one of the mandrel and sleeve including a male component, the other of the mandrel and the sleeve including a recess receptive to the male component at least one of the recess and the male component being helically configured and method. | 01-27-2011 |
| 20110041632 | JAM-TOLERANT DUAL-REDUNDANT DIFFERENTIAL-TYPE ACTUATORS - A jam-tolerant dual-redundant differential-summing actuator ( | 02-24-2011 |
| 20110041633 | VERTICAL MOVEMENT DEVICE FOR AN EXAMINING TABLE - A vertical movement device for an examining table includes a driving wheel, a nut and screw pair and a direction-converting synchronization belt. The driving wheel is disposed on the examining table. The rotation axis of the nut is perpendicular to the rotation axis of the driving wheel, and the nut moves vertically on the screw when the nut rotates so as to carry the examining table to move vertically. The direction-converting synchronization belt converts the rotation of the driving wheel into the rotation of the nut so as to realize the vertical movement of the examining table. The self-locking vertical movement device reduces the noise and manufacturing costs, simplifies the structure, increases the maximum lifting weight and speeds up the lifting/lowering process. | 02-24-2011 |
| 20110048146 | FEED DRIVE MECHANISM AND CONNECTING ASSEMBLY THEREOF - A feed drive mechanism and a connecting assembly thereof are described. The connecting assembly includes a main body and an outer sleeve. The main body has a connecting plate and an inner sleeve connected to a side surface of the connecting plate. Two opposite side surfaces of the connecting plate are respectively fixed on a screw nut seat and a lead screw nut of the feed drive mechanism, and a channel surrounds an outer side surface of the inner sleeve. The outer sleeve is sleeved on the outer side surface of the inner sleeve, enables the channel to be formed into a sealed space, and has an inlet and an outlet respectively communicating with the channel, thereby injecting a cooling medium into the channel. | 03-03-2011 |
| 20110061481 | POSITIONING DEVICE FOR POSITIONING A LOAD - A positioning device ( | 03-17-2011 |
| 20110061482 | POWER TRANSMISSION DEVICE - A power transmission device which is free from a possibility of breakage of a driving member is provided. A stepping motor (driving member) | 03-17-2011 |
| 20110094326 | ROTATION DEVICE AND ELECTRONIC ASSEMBLY UTILIZING THE SAME - An electronic assembly comprises a rotation device comprising a fixed platform defining a through hole. An annular groove is formed in the inside wall of the fixed platform. A first transmission element seats a plurality of teeth. A second transmission element is located in the through hole, and comprises a threaded axis portion and a toothed portion meshing with the plurality of teeth. A third transmission element comprises a rotation portion rotatably mounted in the interior of the annular groove of the fixed platform. A threaded hole is defined in the rotation portion, and is configured for cooperating with the threaded axis portion. A driver source is fixed on the fixed platform and is configured for rotating the first transmission element. An electronic device is mounted on the third transmission element. | 04-28-2011 |
| 20110113904 | FOLDING-TOP DRIVE - A folding-top drive has a motor ( | 05-19-2011 |
| 20110138941 | TORQUE REACTING BELLOWS SEAL FOR LINEAR ACTUATOR - Disclosed is a linear actuator ( | 06-16-2011 |
| 20110174098 | CRADLE & CABLE HANDLER FOR A TEST HEAD MANIPULATOR - In one aspect, a cradle system for supporting a load, the cradle system comprising a first arm with a first carriage assembly axially adjustable therealong and a second arm, opposite the first arm, with a second carriage assembly axially adjustable therealong. An actuator is associated with the first and second carriage assemblies and configured such that actuation of the actuator causes the first and second carriage assemblies to move axially in opposite directions. In another aspect, a cable support system comprising a support column and one or more tethers supported by the support column and configurable so that at least one tether is configured to move its supported cable in the same or opposite direction as the test head moves at a rate that is a constant multiplied by the test heads rate of motion where the constant may be greater than, equal to, or less than one. | 07-21-2011 |
| 20110192243 | OPTICAL AXIS ADJUSTING SCREW - An optical axis adjusting screw ( | 08-11-2011 |
| 20110252904 | TOGGLE TYPE WITH ONE AXIAL POSITIONING MACHINE - A toggle type with one axial positioning machine can increase positioning precision and decrease the impact from external impact by using the three-links design. | 10-20-2011 |
| 20110265587 | Drive cartridge - The invention relates to a drive cartridge comprising an actuating mechanism, in which a spindle can be guided in a hollow cylindrical drive element between two end positions at an axial distance from one another, said positions being defined by the axial length of the drive element, and to a dome-shaped casing that surrounds the drive element in a non-rotatable and non-displaceable manner. The cartridge is characterized in that the drive element has an external contour with an eccentric profile and in that the internal contour of the dome-shaped casing has a positive fit only in those areas of the drive element in which the permissible normal stress exceeds a predefined upper limit. | 11-03-2011 |
| 20110271779 | Linear Actuator - A linear actuator includes a leadscrew and a drive rod threadingly engaged with the leadscrew to permit longitudinal movement of the drive rod along its axis as the leadscrew rotates. A sheath is provided around the drive rod. A gear column is arranged generally coaxially with the axis of the leadscrew, the gear column including a gear through which drive can be applied to rotate the gear column. The gear column is connected to the leadscrew such that rotation of the gear column causes rotation of the leadscrew with respect to the drive rod to cause the drive rod to extend and/or retract. | 11-10-2011 |
| 20110277571 | Rotary-Linear Actuator with Optimised Rollers - According to the invention, an actuator device comprises rollers positioned and guided by spacer rings, and an assembly consisting of said rollers and said rings is provided between a male part and a female part. The rollers include synchronization pinions arranged at the ends thereof and include, on the threaded portion located between said pinions, annular grooves used as a journal for interfacing with open bearings in the form of notches provided on each spacer ring. | 11-17-2011 |
| 20110283822 | Medical Devices, Apparatuses, Systems, and Methods - Medical devices having a platform and an arm movable between a collapsed position and an expanded position. In some embodiments, the platform comprises at least one of a magnetically-attractive material and a material capable of being magnetically-charged. Methods of use. | 11-24-2011 |
| 20110283823 | ADJUSTING TOOL - The invention provides an adjustment device and a method for the adjustment of a machine by means of the adjustment device which has a carrier block and a spindle guided in the carrier block, which spindle has an extension piece at its first end. The carrier block has a contact surface spaced from the guiding section of the spindle, e.g. which contact surface is at the surface of the carrier block facing the extension piece, and is particularly approximately in perpendicular to the axis of the spindle. Upon moving the spindle along its longitudinal axis in the guiding section in the carrier block the extension piece is moved against the plane in which the contact surface is arranged. | 11-24-2011 |
| 20110296936 | Machine Part Comprising a Physical Component Coated with a Polyelectrolyte Layer - The invention relates to a machine part comprising a first physical component, wherein: the first physical component is configured for moving relative to a second physical component; the first physical component has a first surface with a contact area for physical contact with the second physical component; the first physical component is shaped spatially complementarity to the second physical component at the contact area, and a polyelectrolyte layer is present on the first surface at a location of the contact area. The invention further relates to a machine comprising the present machine part and the second physical component. In addition, the invention relates to the use of a polyelectrolyte layer to reduce the friction between the first physical component and the second physical component, and a rolling-elements bearing. | 12-08-2011 |
| 20110303030 | MECHANISM FOR CONVERTING ROTATIONAL MOTION TO LINEAR MOTION - A rotational-to-linear conversion mechanism inhibits interference from occurring in places except for an engagement site to increase the efficiency of conversion mechanism and reliability, which has: a rack rod | 12-15-2011 |
| 20120000304 | LINEAR DRIVE ACTUATOR FOR A MOVABLE VEHICLE PANEL - An apparatus for opening and closing a deck lid of a vehicle body includes a jack-screw type drive unit having two elongated relatively rotatable drive elements which are threadably engaged for controlled bi-directional displacement. An electric motor engages the rotatable drive element. A first mounting device pivotally connects the rotatable drive element to a relatively fixed point on the vehicle. A second mounting device pivotally connects the non-rotatable drive element to the deck lid, or vice versa. The motor is energized to affect bi-directional control of the drive unit while enabling low back-drive effort. A concentric spring counters loading due to the weight of the deck lid. | 01-05-2012 |
| 20120011950 | Actuator Arrangement - An actuator arrangement comprises a carriage secured to a nut of a ball screw actuator, a support member, and bearing means whereby the carriage is supported for axial movement relative to the support member. | 01-19-2012 |
| 20120011951 | LINEAR ACTUATOR - The invention relates to a linear actuator comprising: —an outer tubular body having a helical rolling track; —an internal tubular body with an engine rotatable around a shaft that is coaxial to the tubular bodies; —at least one nut having at least one helical rolling path and a reflow area mounted on said shaft; —and ball bearings placed between a rolling path of at least one nut and a rolling track of the outer tubular body, as well as in the reflow area of such a nut. Said actuator is characterized in that it comprises at least one means for bearing against a rolling track of the outer tubular body along at least one line of contact, and at least one means for controlling said bearing means. | 01-19-2012 |
| 20120024092 | SPINDLE DRIVE FOR THE MOTORIZED ADJUSTMENT OF AN ADJUSTMENT ELEMENT OF A MOTOR VEHICLE - Described herein is a spindle drive for the motorized adjustment of an adjustment element of a motor vehicle comprising a drive portion on the spindle side and a drive portion on the spindle nut side, in which the drive portions are able to be adjusted relative to one another in a linear manner for producing drive movements between a refracted position and an extended position and in each case comprising a coupling means for transferring the drive movements and a spring arrangement provided which pretensions the two drive portions in the extended position, wherein a predetermined rupture point is provided in the drive train of the spindle drive which fractures at a predetermined critical load acting via the coupling means on the spindle drive, and which is located outside the flux of force of the spring arrangement. | 02-02-2012 |
| 20120024093 | BALL-SCREW SPLINE - Provided is a ball-screw spline which contributes to downsizing through reduction of an entire length of a spline shaft, while securing a sufficient stroke amount of a spline nut with respect to the entire length of the spline shaft. The ball-screw spline includes: a screw shaft; a ball-screw nut threadedly engaged with the screw shaft through intermediation of balls; and a spline nut assembled to an outside of the ball-screw nut through intermediation of balls to freely reciprocate in an axial direction of the ball-screw nut, in which the ball-screw nut includes a screw portion and an extended portion which are formed integrally with each other with the same outer diameter, in which the screw portion has an inner peripheral surface provided with: a load-rolling groove which forms a load path for the balls together with a ball rolling groove on the screw shaft side; and a ball return path coupling adjacent valley portions of the load-rolling groove so as to form an infinite circulation path corresponding to one loop around the screw shaft, and in which the ball-screw nut has an outer peripheral surface provided with a ball rolling groove for the spline nut, the ball rolling groove for the spline nut being formed over a range corresponding to the screw portion and the extended portion. | 02-02-2012 |
| 20120031211 | Shaft Part Formed With A Rolling Groove - A shaft part is formed with a rolling groove ( | 02-09-2012 |
| 20120036950 | ACTUATOR FOR A WASTEGATE OR A VARIABLE TURBINE GEOMETRY DEVICE AND METHOD OF ACTUATION - An actuator has a rotary drive and a threaded element for converting the rotary motion of the rotary drive into a reciprocating motion of a tappet connected to a hinged wastegate and/or to a variable turbine geometry device of an exhaust gas turbocharger. The tappet and/or an axle between the tappet and the threaded element is received in at least one guide comprising at least one web and allowing for at least a slight tilting or pivoting movement of the tappet in at least one direction. At least some play is present between the web and at least one broadened portion on the tappet and/or on the axle. Methods of actuating a wastegate and/or a variable turbine geometry device. | 02-16-2012 |
| 20120036951 | WAVE-TYPE LINEAR MOTION MECHANISM - Disclosed is a wave-type linear motion mechanism including a hydraulic pressure chamber for applying a retention force in the axial direction to a rigid screw member which moves in a linear fashion. Regulating valves are provided in the hydraulic pressure chamber, and these regulating valves open during the rotation of a wave generator so that no hydraulic pressure is exerted on the rigid screw member which moves in a linear fashion. During the rotation of the wave generator the regulating valves close to establish an airtight state in the hydraulic pressure chamber, and a hydraulic pressure is exerted as a retention force on the rigid screw member. Although restricted by the meshing strength between the rigid screw member and a flexible screw member and the buckling strength of the flexible screw member, the retention force of the wave-type linear motion mechanism is able to be increased. | 02-16-2012 |
| 20120079902 | BALL SCREW DRIVE HAVING AN AXIALLY SUPPORTED THREADED SPINDLE - A ball screw ( | 04-05-2012 |
| 20120103115 | NUT ROTARY BALL SCREW WITH A PREDETERMINED PRESSURE STRUCTURE - A nut rotary ball screw with a predetermined pressure structure is disclosed. In the nut rotary ball screw of the present invention, we may rotate the predetermined pressure adjusting device to adjust the magnitude of the predetermined pressure by generating a predetermined pressure between the first inner slot and the outer slot as well as the first rolling pieces and between the second inner slot and the outer slot as well as the first rolling pieces. The present invention can greatly simplify the complicated adjustment process of the predetermined pressure in the prior art and can eliminate the time-consuming grinding step and the steps to disassemble or assemble a bolt. Accordingly, the present may simplify the adjustment process of the predetermined pressure and may lower the production cost. | 05-03-2012 |
| 20120118089 | TRANSMISSION DRIVE UNIT - A transmission drive unit ( | 05-17-2012 |
| 20120132019 | CHASSIS ACTUATOR - A chassis actuator adjusting a movably mounted component of a chassis, which has a first actuator component connected to the movably mounted component and a second actuator component connected to a fixed chassis component. The actuator components are adjustable axially by a ball screw that has a threaded spindle and a nut which runs on spindle. The nut is driveable by a drive motor that has a rotor coupled to the nut and a fixed stator arranged axially symmetrically with respect to the nut. The rotor is coupled to the nut by a wrap spring which radially surrounds the nut and via which the nut is rotated during rotation of the rotor and which forms a brake device. The brake device can be actuated by an external chassis force which acts on and rotates the nut and builds up a friction moment that counteracts the rotation of the nut. | 05-31-2012 |
| 20120137802 | ELECTROMECHANICAL TELESCOPIC ACTUATOR - The invention relates to a telescopic actuator comprising:
| 06-07-2012 |
| 20120160043 | LINEAR UNIT - A linear unit for applying an axially acting force, composed of a rotational/translational gear ( | 06-28-2012 |
| 20120174691 | LINEAR ACTUATOR | 07-12-2012 |
| 20120192663 | BALL SCREW ASSEMBLY WITH ENHANCED RADIAL LOAD CAPACITY AND METHOD OF CONSTRUCTION THEREOF - A linear ball screw assembly and method of construction thereof is provided. The assembly includes a screw having a helical external groove and a ball nut having a through bore configured for receipt of the screw therethrough and including a helical internal groove radially aligned with the external groove of the screw to form a helical raceway. A plurality of axial load balls are disposed in the helical raceway. The nut includes a pair of non-grooved internal cylindrical surfaces extending in axially opposite directions from the internal groove along the external groove of the screw to provide outer surfaces of a pair of radial load raceways. A plurality of radial load balls are disposed in the radial load raceways. The radial and axial load balls have different diameters and/or the internal cylindrical surfaces are provided by a pair of sleeve inserts. | 08-02-2012 |
| 20120198951 | SPINDLE DRIVE - A spindle drive having a threaded spindle driveable in a rotational fashion, a carriage adjustable via the threaded spindle along a guide rail, and several guide carriages arranged in front and behind the carriage in the feed direction to support the spindle, with the guide carriages arranged in front of the carriage in an accumulating motion being pushed together successively by the carriage towards the spindle end, and with the guide carriages arranged behind the carriage being entrained by a coupling mechanism and moved into allocated support positions. Coupling elements are provided on the guide carriages and the carriage, that cooperate together and can be operated by switching elements fixed on the guide rail, by which the guide carriages arranged in front of the carriage are automatically coupled during the successive displacement motion, and by which the entrained guide carriages upon reaching their support position are automatically decoupled and fixed. | 08-09-2012 |
| 20120222510 | LINEAR ACTUATOR - Linear actuator comprising a housing ( | 09-06-2012 |
| 20120227523 | SHIFTING APPARATUS - A shifting apparatus including a base, first and second shifting elements, a pushing element, a fixed portion, and two screws is provided. The fixed portion fixed on the base has two trenches extending along first and second directions perpendicular to each other. The first shifting element is slidably disposed on the base along the first direction. The second shifting element is slidably disposed on the first shifting element along the second direction. The pushing element is slidably disposed in the two trenches. One screw screwed on the fixed portion along the second direction is capable of pushing the pushing element to move along the two trenches, such that the first shifting element is pushed by the pushing element to shift along the first direction. Another screw screwed on the first shifting element along the second direction is capable of pushing the second shifting element to shift along the second direction. | 09-13-2012 |
| 20120247240 | Linear Actuator - A linear actuator is provided which is able to simplify its structure by adding a stopper function, too, to a detent mechanism and to prevent generation of radial load. The linear actuator comprises a ball screw mechanism, to which a rotational driving force is transmitted, for converting a rotational motion into a linear motion. The ball screw mechanism comprises radially projecting guide projections provided in a linear motion component, and a guide groove arranged in a securing portion facing the linear motion component and is engaged with the guide projections to guide the guide projections in an axial direction. The guide projection has a projection projecting by the predetermined length, while engaging into the guide groove, at a stroke end of the linear motion component and a locking portion provided in a rotary motion component is locked to the projection of the guide projection. | 10-04-2012 |
| 20120297908 | LINEAR ACTUATOR WITH ANTI-ROTATION MECHANISM - An assembly comprises a housing, a motor within the housing, and a thrust tube with an anti-rotation mechanism. The motor comprises a hollow rotor. An externally threaded screw shaft is coupled to the hollow rotor for rotation therewith. An internally threaded nut is coupled to the externally threaded screw shaft, wherein rotation of the screw shaft causes the nut to move axially. The thrust tube is operably connected with the nut, and the anti-rotation mechanism is attached to the thrust tube to substantially prevent rotation relative the housing. | 11-29-2012 |
| 20120325033 | SPINDLE GEAR UNIT HAVING REINFORCEMENT - An adjusting means for adjusting two vehicle parts relative to each other, in particular for the longitudinal setting of a vehicle seat is provided. The adjusting means comprising an adjusting gear unit arranged on a first vehicle part and a spindle arranged on a second vehicle part, which extends in longitudinal direction, is in engagement with the adjusting gear unit and along which the adjusting gear unit is movable for adjusting the first vehicle part relative to the second vehicle part. There is provided a reinforcement part which supports the adjusting gear unit with respect to the first vehicle part in the longitudinal direction of the spindle such that due to the reinforcement part with forces introduced in the longitudinal direction from the first vehicle part into the adjusting gear unit the adjusting gear unit is supported with respect to the first vehicle part with a higher rigidity than with forces introduced against the longitudinal direction. | 12-27-2012 |
| 20130000430 | COMPRESSION APPARATUS AND METHODS FOR USE THEREOF - An apparatus for compressing or decompressing a compressible body is provided. The apparatus comprises an upper nest arm and a lower nest arm separated by a rigid rod. The upper nest arm has an upper nest arm mounting feature configured to receive a first end of the compressible body. The upper nest arm mounding feature is shaped to fit the contours of the compressible body. The lower nest arm has a lower nest arm mounting feature configured to receive a second end of the compressible body. The lower nest arm can traverse the rigid rod to either compress or decompress the compressible body. | 01-03-2013 |
| 20130000431 | TRANSMISSION - Transmission, in particular for converting a rotational movement around the longitudinal axis of the transmission into a linear movement in the direction of the longitudinal axis or vice versa, having a rod having a gearing, a gear tooth carrier, in which gear teeth are accommodated so they are radially movable for an engagement with the gearing, the rod and the gear tooth carrier being mounted rotationally fixed relative to one another. | 01-03-2013 |
| 20130008268 | Positioning Apparatus - A positioning apparatus converts linear movement along a first axis into either linear movement along another axis or rotational movement. The apparatus includes a fixed element and one or more moveable elements which are moveable relative to the fixed element. A first guide element is attached to the fixed element and a second guide element is attached to the moveable element. An adjustment mechanism, which is associated with the first and second guide elements, is moveable relative to the fixed element along a first axis, and movement of the adjustment causes movement of the moveable element. | 01-10-2013 |
| 20130025388 | ADJUSTING DEVICE HAVING AN ADJUSTING MECHANISM ARRANGED ON A GUIDE RAIL - The invention relates to an adjusting device for adjusting two vehicle parts relative to each other, comprising a first guide rail ( | 01-31-2013 |
| 20130042707 | COMPOUND DIFFERENTIAL THREAD SYSTEMS - A compound differentially threaded element engages two or more longitudinally severed segments of a mating threaded element to provide differential linear motion. Different thread types may include pitch, thread starts, handedness or thread-form. Combinations of differential threads may be selected to enable fine or coarse linear motion without correspondingly fine or coarse thread pitches. | 02-21-2013 |
| 20130047758 | Z-AXIS STAGE DRIVING APPARATUS, STAGE DRIVING APPARATUS, AND METHOD FOR MANIPULATING STAGE DRIVING APPARATUS - Disclosed is Z-axis stage driving apparatus to move a stage on which a workpiece such as a wafer is placed along a Z-axis. The Z-axis stage driving apparatus includes a motor, a plurality of elevating devices to move a stage along a Z-axis, a power transmission device to transmit power of the motor to the plurality of elevating devices, and a clutch to control power transmission between the power transmission device and the elevating devices. | 02-28-2013 |
| 20130074622 | ROLLER SCREW - The roller screw mechanism is provided with a screw comprising an external thread, with a nut arranged around and coaxial with the said screw, the nut comprising an internal thread, and with a plurality of rollers interposed between the screw and the nut and comprising flanks interacting with the said threads. The value of the opening angle α of the flanks of the external thread of the screw is greater than the value of the opening angle of the flanks of the rollers. | 03-28-2013 |
| 20130098185 | Linear Motion Device having an Anti-Twist Safeguard, Comprising an Elongate Anti-Friction Lining - A linear motion device includes a housing, an extension arm, and an anti-twist safeguard. The extension arm projects from the housing and includes a securing section. The anti-twist safeguard includes at least one separate elongate anti-friction lining, which is formed with a constant cross-sectional shape. The anti-friction lining is arranged substantially without play between the housing and the securing section of the extension arm and extends transversely to a longitudinal axis. The extension arm is supported on the housing in such a way that it can move along the longitudinal axis. In the securing section, the extension arm extends parallel to the longitudinal axis with a constant external cross-sectional shape deviating from a circular shape. The anti-twist safeguard engages positively in said external cross-sectional shape, thus securing the extension arm with respect to the housing against twisting relative to the longitudinal axis. | 04-25-2013 |
| 20130104679 | LINEAR ACTUATOR | 05-02-2013 |
| 20130125682 | PEDAL FORCE ADJUSTING APPARATUS FOR ACCELERATOR PEDAL - A pedal force adjusting apparatus for an accelerator pedal regulates a resilient force of a resilient member through movement of an upper carrier and a lower carrier due to rotation of a lead screw. Accordingly, a pedal force of a pedal arm can be easily regulated if necessary. | 05-23-2013 |
| 20130152716 | ROLLER SCREW - The roller screw mechanism is provided with a screw including an external thread, with a nut arranged about and coaxial with said screw, the nut including an internal thread, and with a plurality of rollers inserted between the screw and the nut and each including an external thread engaging the external and internal threads of said screw and of said nut. The screw is axially moveable in relation to the rollers. The flanks of the thread of the screw have a concave profile in cross section. | 06-20-2013 |
| 20130160583 | Roller Screw - Disclosed is a roller screw including a screw shaft and a nut cage with the screw shaft inserted therein, the roller screw being adapted to convert a rotary motion of either the screw shaft or the cage into a rectilinear or linear motion of the other; the roller screw further including: a plurality of rollers, each formed to roll along a flank surface la of the screw shaft; and plurality of roller bearings, each formed to support one of the rollers so as to allow the roller to rotate. At least one of the roller bearings is retained in the case so as to move forward and backward in an axial direction of rotation of the corresponding roller supported by the roller bearing. | 06-27-2013 |
| 20130174678 | OPTICAL PICKUP DEVICE TRANSFER MECHANISM - Provided is a feed-screw type optical pick-up device transfer mechanism for transferring an optical pick-up device through a base member coupled to a follower member in a state in which teeth of the follower member are engaged with a screw portion threaded around an external circumference of a drive shaft, wherein the teeth of the follower member include two main teeth relating to the transfer of the optical pick-up device and at least one subsidiary tooth provided between the two main teeth and unrelating to the transfer of the optical pick-up device. | 07-11-2013 |
| 20130186216 | PART FOR ADJUSTING A SPORTS ARTICLE - A rotatable adjustment part adapted to be affixed to a first component of a sports article. The adjustment part comprises a groove for receiving a portion of a retaining wall associated with the sports article so as to keep the tightening part on the retaining wall, when the tightening part is separated from the first component of the sports article. | 07-25-2013 |
| 20130228026 | POWER STEERING SYSTEM - A power steering system, and more particularly a power-assisted steering system for a vehicle, comprises a lead screw which is driven by a servo motor and is composed of a nut, which is mounted axially non-displaceably in a frame, and an axially displaceable component, the thread of which is engaged with a thread of the nut, and further comprising a belt pulley, which is non-rotatably connected to the nut and forms part of a traction mechanism gear between the servo motor and the nut, wherein the nut is mounted in the frame by a rolling bearing. So as to provide a power steering system which produces little noise and is easy to install, very precise in operation and also cost-effective to produce, the belt pulley is produced from plastic. | 09-05-2013 |
| 20130233103 | ELECTRIC POWER STEERING SYSTEM - A return passage that connects two points of a rolling passage to allow each ball that rolls in the rolling passage to endlessly circulate is formed in a ball screw nut by attaching a circulation member to fitting holes. A protrusion is formed on an outer surface of the circulation member at a position offset from a raceway of the balls that circulate in the return passage. The circulation member is fixed to the ball screw nut when the protrusion contacts an inner periphery of an inner ring of a second bearing. | 09-12-2013 |
| 20130247700 | ELECTRIC ACTUATOR WITH SHOCK ABSORBING MECHANISM - An electric actuator is capable of easily achieving reduction in weight and size when compared to a hydraulic cylinder device, capable of being used in place of the hydraulic cylinder device, and capable of freely extending in response to a suddenly-applied impact load. An electric actuator converts rotation of an electric motor into advancing/retracting motion of an output rod using a screw shaft and a nut member mounted to the screw shaft. The output rod includes: a drive cylinder, to which the nut member is provided, the drive cylinder being arranged around the screw shaft; and a movable cylinder arranged to overlap the drive cylinder around the screw shaft and freely advancing and retreating with respect to the drive cylinder. The electric actuator further includes a releasing mechanism provided between the drive cylinder and the movable cylinder, for engaging the movable cylinder with the drive cylinder. | 09-26-2013 |
| 20130255412 | TRANSVERSE ADJUSTMENT MECHANISM FOR BILATERAL HALF-SPRING TYPE LOAD-CARRYING HEAD - A transverse adjustment mechanism for a bilateral half-spring type load-carrying head is installed in the casing of the load-carrying head of the lifting unit of a pit type unwheeling machine, fixedly connected with the casing, directly connected to an adjustment unit at the end of the load-carrying head, and installed on a lead screw of the adjustment unit. The transverse adjustment mechanism includes an adjusting nut, an adjusting nut guide, a guiding tube, and a guiding sleeve, a nut mounting plate, a flange plate, a compression spring and a sliding shaft. The invention is currently applied to the transverse adjustment of the no-loading heads and transverse fine adjustment of the load-carrying heads of the CRH train. The structure is reliable and practical, safe, convenient and energy-saving to use and satisfies the demand for the synchronous lifting operation of the entire CRH train of the compatible pit type unwheeling machine. | 10-03-2013 |
| 20130269459 | ADJUSTING DEVICE HAVING A SPINDLE GEAR UNIT - The invention relates to an adjusting means ( | 10-17-2013 |
| 20130283946 | GEAR NUT ADJUSTMENT ASSEMBLY - A gear nut adjustment assembly is provided that receives and powers an adjustable jaw assembly for purposes of making or breaking a tubular connection. The adjustable jaw assembly is capable of receiving pipes of various diameters through an automated means. In one example of an implementation of the invention, the gear nut adjustment assembly of the present invention includes a housing for mounting a nut assembly at one end and a motor at the other end. The housing includes a front and rear housing where the front housing has a mounting assembly for mounting a nut assembly. The nut assembly includes at its rear end a ring gear. The rear housing further includes a drive gear positioned in between the front and rear housing in engagement with the ring gear of the nut assembly. The drive gear is driven by the motor attached to the back of the rear housing and, through engagement with the ring gear on the nut assembly, rotates the nut assembly to adjust the jaws of the adjustable jaw assembly. | 10-31-2013 |
| 20130283947 | LINEAR ACTUATOR - A linear actuator includes an output rod having a flange portion on an outer peripheral surface thereof, an intermediate rod connected to a nut and having a flange portion on an outer peripheral surface thereof, a cage for housing therein coaxially the output rod and the intermediate rod and having a flange portion on an inner peripheral surface thereof at a position between the flange portion and the flange portion, a lid member disposed on a side of the output rod in the cage, a lid member disposed on a side of the intermediate rod in the cage, a coned disc spring housed between the flange portion and the flange portion, and a coned disc spring housed between the flange portion and the lid member. | 10-31-2013 |
| 20130291669 | LINEAR ACTUATOR AND LINEAR ACTUATING MODULE HAVING SAME - A linear actuator includes a housing, a rotary unit disposed in the housing, and a screw member driven by the rotary unit. The rotary unit is translatable relative to the housing when the screw member is driven by the rotary unit. | 11-07-2013 |
| 20130305857 | ACTUATOR FOR A VEHICLE SEAT, AND VEHICLE SEAT - An actuator for a vehicle seat has a housing, a motor with a motor shaft which has at least a first direction of rotation, a gear mechanism which is connected at the output end to the motor by the motor shaft, an actuator output drive which is connected at the output end to the gear mechanism, and a control unit. The actuator output drive has an output element which can be moved in the direction of an end position from a starting position by rotation of the motor shaft in the first direction of rotation. The direction of rotation of the motor shaft can be reversed from the first direction of rotation to an opposite second direction of rotation by the control unit, with the result that the output element can be moved in the direction of the starting position from the end position. | 11-21-2013 |
| 20130319146 | Swiveling Actuator - Disclosed is a swivel actuator, the swivel actuator including a driving motor, a linear screw shaft rotating in conjunction with rotational force of the driving motor, a nut member reciprocating to a lengthwise direction of the linear screw shaft in response to the rotation of the linear screw shaft, a lever member, one end of which being rotatably coupled to the nut member and the other end being connected to a rotating counterpart, and an elastic member arranged at a coupled position between the nut member and the lever member to maintain a coupling between the nut member and the lever member by applying elastic restoring force to the lever member. | 12-05-2013 |
| 20130319147 | LINEAR ACTUATOR - A linear actuator ( | 12-05-2013 |
| 20130333498 | FLOATING COLLAR CLAMPING DEVICE FOR AUTO-ALIGNING NUT AND SCREW IN LINEAR MOTION LEADSCREW AND NUT ASSEMBLY AND METHODS THEREOF - An auto-aligning linear motion apparatus is provided. The apparatus includes a leadscrew. The apparatus also includes a nut arrangement configured to surround the leadscrew, wherein the nut arrangement includes at least a nut, a nut bracket, and a floating collar. A shoulder screw is inserted through a nut bracket slot of the nut bracket and a nut slot of the nut to rest at least partially within the floating collar. One dimension of the not bracket slot is larger than a dimension through a cross-section area of the shoulder screw to enable the shoulder screw to move within the nut bracket slot to adjust the nut arrangement as the leadscrew is rotated to maintain a concentric relationship between the nut arrangement and the leadscrew. | 12-19-2013 |
| 20130333499 | MOTOR HAVING SCREW JOINT - Disclosed is a motor having a lead screw, the motor including a motor body, a lead screw connected to an output axis of the motor body to reciprocally move to a horizontal direction, a ball-shaped joint member connected to a distal end of the lead screw, and a coupling member coupling the lead screw to the ball-shaped joint member, whereby the coupling member is prevented from being disengaged by heat-sealing a surface insertedly coupled by the coupling member of the joint member. | 12-19-2013 |
| 20130340550 | Universal Retrofit Kit Apparatus and Methods Thereof - An apparatus and methods are disclosed for retrofitting a manual benchtop milling machine utilizing servo controls and/or stepper motors. The present disclosure provides a retrofit kit for the modification of a milling machine by incorporating ball screws and ball nuts without removing or replacing the original acme nuts, which inherently have been properly configured and aligned to the machine on which they were originally installed. The retrofit kit of the present disclosure allows for the modification using the alignment of the original acme nuts in their proper location and alignment obviating the need for custom machining or alignment. | 12-26-2013 |
| 20140047936 | BALL-SCREW ASSEMBLY ISOLATOR HAVING COMPRESSIBLE MEMBERS - A ball-screw assembly isolator is provided, and includes a housing; a ball-screw, a bearing assembly, a retaining member, a first compressible member and a second compressible member. The bearing assembly is located between the housing and the ball-screw. The bearing assembly includes an outer race. The retaining member is secured by the housing. The first compressible member is positioned between the housing and the outer race. The second compressible member is positioned between the outer race and the retaining member. The retaining member is configured to be preloaded to exert an axial force upon the first compressible member and the second compressible member. | 02-20-2014 |
| 20140123789 | ACTUATOR - An actuator includes an outer sleeve with at least a pair of helical slots coiling in a first direction, an inner sleeve with at least a pair of helical slots coiling in a second, opposite direction, and a driver including bearings received through the helical slots of the inner sleeve and into the helical slots of the outer sleeve. | 05-08-2014 |
| 20140123790 | HEIGHT ADJUSTMENT DEVICE FOR TRANSIT SHAFT AND ARM ASSEMBLY - A height adjustment device for a transit shaft and arm assembly that enables height adjustments without significant disassembly of a transit door. An additional advantage is that the device does not require the use of shims, spacers or adjustment rings to adjust the height of the shaft and arm assemblies. Rotation of a nut threaded on the shaft allows for the adjustment of how much of the shaft hangs below a support member and a bearing. A surface of the nut bears on the bearing and the attached shaft and arm assembly hangs from the bearing and the support member the bearing is attached to. This arrangement allows the arm assembly to pivot along the longitudinal axis of the shaft. This arrangement also allows the height of the shaft and arm assembly to change with changes in position of the nut by threading the nut along the shaft. | 05-08-2014 |
| 20140137679 | LINEAR DRIVE - The present invention relates to a linear drive with a stator, a runner, and two rotative drive units provided for driving the runner. It is provided according to the invention that the linear drive comprises two magnetorheological clutches, wherein the first drive unit can be coupled to the runner using a first magnetorheological clutch and the second drive unit can be coupled to the runner using a second magnetorheological clutch. The output torque of the first drive unit acts upon the runner in the opposite direction to the output torque of the second drive unit. | 05-22-2014 |
| 20140144263 | BALL SCREW AND ELECTRIC POWER STEERING SYSTEM INCLUDING BALL SCREW - There are provided a ball screw that makes it possible to prevent a situation where a large load is applied to a part of a plurality of balls, and an electric power steering system including the ball screw. The ball nut is a component that surrounds a part of the male thread groove, and has a nut inner surface and a female thread groove. The female thread groove is formed in the nut inner surface, and forms a part of the rolling path. A female thread diameter varies according to a position in an axial direction of the ball nut. The female thread diameter is larger at each of axially ends of the ball nut than at an axially intermediate portion of the ball nut, and the female thread diameter is larger at one of the axially ends than at the other of the axially ends. | 05-29-2014 |
| 20140157918 | Electrically Driven Linear Actuator - An electric linear actuator has a screw shaft incapable of rotating with respect to the housing. The screw shaft provides axial movement. A steel sleeve is fit into a bag like housing hole of the housing. A recessed groove is formed on the inner circumference of the sleeve and extends in a shaft direction. A locking pin, applied with metal plating, is inserted into an end of the screw shaft. The locking pin engages the recessed groove. The end of the sleeve is externally fit with a cap. The cap is fit into a base portion of the bag like housing hole of the housing. | 06-12-2014 |
| 20140157919 | ACTUATOR - An actuator ( | 06-12-2014 |
| 20140165754 | SYSTEM COMPRISING A ROLLER SCREW AND A ROLLER THRUST BEARING - The system comprises a roller screw mechanism | 06-19-2014 |
| 20140174221 | LINEAR ACTUATOR - A linear actuator includes a housing, a motor, a decelerator and an actuating rod. The housing includes an outer sleeve, a motor sleeve, a connecting sleeve, and at least a motor bolt. The connecting sleeve is connected to one end of the outer sleeve, the motor bolt longitudinally penetrating the motor sleeve and connected to the connecting sleeve. The motor is arranged in the motor sleeve. The decelerator is arranged in the motor sleeve. The decelerator is connected to the motor. The actuating rod is arranged in the outer sleeve. The actuating rod is connected to the decelerator through the motor sleeve, and the actuating rod is driven by the motor through the decelerator. The elements of the linear actuator are thereby firmly assembled by simple structure. | 06-26-2014 |
| 20140174222 | BALL SCREW WITH CENTRAL PROTRUSION - The invention relates to a power-steering system with a bail screw drive, having a threaded spindle ( | 06-26-2014 |
| 20140174223 | ANTI-ROTATION FEATURE FOR INFUSION PUMP CARTRIDGE - Apparatus is described for administering a substance to a subject. A vial contains the substance and a stopper is disposed within the vial and is slidably coupled to the vial. A first threaded element is (a) rotatable with respect to the vial and (b) substantially immobile proximally with respect to the vial during rotation of the first threaded element. A second threaded element is threadedly coupled to the first threaded element. At least a distal end of the second threaded element is substantially non-rotatable with respect to the vial, and the distal end of the second threaded element defines a coupling portion that couples the second threaded element to the stopper. The first threaded element, by rotating, linearly advances the stopper and at least the distal end of the second threaded element toward a distal end of the vial. Other embodiments are also described. | 06-26-2014 |
| 20140182403 | ELECTRIC ACTUATOR AND MANUAL ADJUSTMENT MECHANISM THEREOF - An electric actuator includes: an actuating shaft and a screw rod screwed to and driving the actuating shaft; a motor connecting the screw rod; a connection seat connecting the actuating shaft and including a positioning post and a rotary shaft; a coupling ring sleeved around and rotating with the positing post, and a slide slot disposed out of the coupling ring; a support ring sleeved around the rotary shaft; a cylindrical connector sleeved around the support ring and screwed to a hinge end cap and with a locking slot communicating with the slide slot and disposed out of the cylindrical connector; a knob sleeved around the cylindrical connector and the coupling ring and covering the rotary shaft, and a raised rib slidably connected to the slide slot and the locking slot and disposed in the knob. | 07-03-2014 |
| 20140182404 | Headrest Moving Device - A headrest moving device which includes a press member, a moving unit that is moved horizontally by the press member, a return spring that functions to return the moving unit to an original position, a screw, a block that is provided with threads in the inner circumferential surface thereof and is engaged with the screw through a screw type engagement, a locking unit that selectively releases the block from a locked state in response to a movement of the moving unit, and a frame that is installed on a stay rod and supports the moving unit, in which either one of the screw and the block can be rotated so that the device can control the position of a headrest steplessly in forward and backward directions. | 07-03-2014 |
| 20140190290 | METHOD AND SYSTEM FOR TENSIONING PARK BRAKE CABLES - A method of tensioning a park brake system of a vehicle includes providing an adjustment mechanism having a nut in threaded engagement with a rod that defines a signal to noise ratio therebetween. The nut is advanced on the rod to remove slack until torque applied to the nut indicates that the park cables include a tension equal to an offset tension level. The nut is then retracted on the rod to introduce slack into the park cables and reduce the tension in the park cables to a target slack tension level. A signal to noise ratio between the nut and the rod is improved so that the cable tension may be predicted by the torque required to turn the nut on the rod, thereby allowing a torque indicating tool to measure the tension in the park cables my measuring the torque required to turn the nut on the rod. | 07-10-2014 |
| 20140190291 | FLIGHT-CONTROL ACTUATORS HAVING A SECONDARY NUT - The invention relates to a flight-control actuator comprising a control screw ( | 07-10-2014 |
| 20140190292 | Caulking apparatus - During a caulking process, a pressure is applied to a pressure receiving shoulder portion in the same direction as a direction of a clamping force generated by a caulking portion. The clamping force for holding an outer race can thereby be increased. Also, a pressure receiving surface of the pressure receiving shoulder portion is set higher than an end face. Thus, no pressure resulting from plastic deformation in a direction perpendicular to the direction of the clamping force of the caulking portion is generated. In addition, a groove is formed between the pressure receiving shoulder portion and an end serving as the caulking portion. | 07-10-2014 |
| 20140190293 | Step Actuator - Disclosed is a step actuator. The step actuator includes a housing; a stator installed in the housing; a rotor positioned radially inward from the stator, the rotor rotating and protruding from one side of the housing; a bearing installed at one side of the housing so as to be coupled with the rotor; a bearing cover coupled with one side of the housing to restrain movement of the bearing; a screw member coupled with the rotor to linearly move according to rotation of the rotor; and a mounting member coupled to the bearing cover to support the screw member. | 07-10-2014 |
| 20140196555 | LINEAR ACTUATOR - A linear actuator includes a driver ( | 07-17-2014 |
| 20140230583 | ACTUATOR INCLUDING HANDLING-PROOF POSITION FEEDBACK MECHANISM - An actuator includes a housing assembly, an actuator shaft, an actuation member, and an anti-rotation rod. The actuator shaft is rotationally mounted in the housing assembly, is adapted to receive a drive torque, and is configured, upon receipt of the drive torque, to rotate. The actuation member is mounted on the actuator shaft, and is configured to translate in response to rotation of the actuator shaft. The anti-rotation rod is coupled to the actuator housing and extends therefrom. The anti-rotation is rod configured to at least selectively engage, and thereby prevent rotation of, the actuation member. | 08-21-2014 |
| 20140230584 | Actuator Arrangement - An actuator arrangement comprises an epicyclic gear set | 08-21-2014 |
| 20140230585 | Gap Expanding Method of Ball Screw and Fine Motion Control Rod Drive Mechanism Incorporating Gap Expanded Ball Screw - It is an object of the present invention to provide a gap expanding method of a ball screw for preventing an increase in torque relative to an electric motor due to a protruding bulge caused by generation of a scar on the traveling side of the screw shaft of the ball screw, and to provide a control rod drive mechanism incorporating the gap expanded ball screw. In a ball screw disposed in a control rod drive mechanism, the ball screw has a screw shaft and a ball nut engaged with the screw shaft via travelling balls, and the balls are each configured to have a diameter smaller than that of the existing ball, thereby expanding a gap between a ball traveling side of the screw shaft and the ball and a gap between the ball and a ball traveling side of the ball nut. | 08-21-2014 |
| 20140230586 | SPINDLE DRIVE FOR THE MOTORIZED ADJUSTMENT OF AN ADJUSTING ELEMENT OF A MOTOR VEHICLE - The invention concerns a spindle drive for the motorized adjustment of an adjusting element of a vehicle, comprising a drive motor with a motor shaft, a speed reduction gear mechanism, and a feed gear mechanism, the speed reduction gear mechanism having a planetary gear mechanism and the feed gear mechanism being designed as a spindle/spindle nut gear mechanism, the planetary gear mechanism having a rotatable sun gear and coaxially in relation thereto a rotatable planet-gear carrier and a fixed or fixable ring gear, and the planet-gear carrier carrying at least one rotatable planet gear, which is in axially parallel engagement with the sun gear on the one hand and the ring gear on the other hand, the drive motor, the speed reduction gear mechanism and the feed gear mechanism being accommodated one behind the other in a substantially elongate drive housing and aligned with a common longitudinal drive axis. | 08-21-2014 |
| 20140238166 | ELECTRIC POWER STEERING APPARATUS OF BALL SCREW TYPE - A rack-driven auxiliary power steering apparatus prevents a ball nut and a nut pulley from idling due to a slip thereof and increases durability when the drive belt is operated by driving of a motor, and minimizes vibrations and noise transferred through the rack bar, the ball nut, and the nut pulley when the rack bar is slid while the nut pulley and the ball nut are rotating, thereby providing a comfortable steering feeling to the driver. | 08-28-2014 |
| 20140238167 | NUT SCREW CONVEYING DEVICE - Disclosed herein is a nut screw conveying device including a nut and a screw to convert rotational movement into translational movement. In the nut screw conveying device, a plurality of different threads is spirally formed on an inner circumferential surface of the nut, and the screw is provided with a plurality of rotating media to be respectively engaged with the different threads. | 08-28-2014 |
| 20140238168 | Electric Linear Actuator - An electric linear actuator has a housing with an electric motor, a speed reduction mechanism and a ball screw mechanism. The ball screw mechanism converts the rotational motion of the electric motor to an axial linear motion of a drive shaft. The ball screw mechanism has a nut and a screw shaft. The screw shaft is inserted into the nut, via a large number of balls. The screw shaft is rotationally supported on the housing but is axially immovable. An output gear, forming part of the speed reduction mechanism, is secured on the nut. The bearings are arranged at either side of the output gear. The bearings are mounted on the housing, via a ring-shaped washer, formed from an elastic member. | 08-28-2014 |
| 20140260727 | Electric Power Steering Assembly - A rack drive assembly adapted for use in a vehicle electric power steering assembly includes a bearing assembly disposed in a rack housing and carried by a ball nut assembly for rotatably supporting the ball nut assembly relative to a steering member; and a spanner nut carried by the rack housing for securing the bearing assembly in the rack housing. A first isolator, a second isolator and a first shim are provided wherein the first isolator is disposed between an inner surface of the housing and a first surface of an outer race of the bearing, the second isolator is disposed between an opposite second surface of the outer race of said bearing and the first shim, the first shim is disposed between the second isolator and the spanner nut. The first shim is provided with a member configured to be coupled to the housing to allow for axial movement but prevent rotational motion of the shim during installation of the spanner nut. | 09-18-2014 |
| 20140260728 | ELECTRIC POWER STEERING ASSEMBLY - A rack drive assembly adapted for use in a vehicle electric power steering assembly includes a ball nut assembly having at least a first end portion and an opposite second end portion, a bearing assembly carried by the ball nut assembly for rotatably supporting the ball nut assembly, a pulley assembly configured to be carried by the ball nut assembly, and at least a first spanner nut configured to be carried by the first end portion of the ball nut for securing the bearing assembly on the ball nut assembly. The ball nut includes a flange provided on an outer portion thereof configured to connect the ball nut to a pulley of a pulley assembly for rotation therewith. The flange is spaced remote from an end of the second end portion of the ball nut. | 09-18-2014 |
| 20140260729 | LINEAR MOTION SYSTEM WITH AUTOMATIC LUBRICATOR - A linear motion system includes an elongated shaft, a movable member mounted at the elongated shaft, a lubricator unit defining therein a grease storage container for storing a lubricating grease, a motor mounted in the grease storage container, a lubricating grease guide connected to the motor, a controller mounted in the grease storage container, and a sensor adapted to provide an actuation signal to the controller upon movement of the movable member, causing the controller to start the motor in moving the lubricating grease guide to expel the storage lubricating grease out of the grease storage container onto the surface of the elongated shaft so as to achieve a self-lubricating effect. | 09-18-2014 |
| 20140260730 | ACTUATOR WITH QUICK-RELEASE MECHANISM - An actuator with a quick-release mechanism includes a base ( | 09-18-2014 |
| 20140260731 | Lead Screw Operated Rack-In Mechanism - A lead screw operated drawout mechanism for an electrical system is disclosed. The lead screw operated drawout mechanism includes a lead screw, a nut, a drive shaft and a connecting mechanism. The lead screw is supported on a support frame in a way such that the lead screw rotates with respect to the support frame. The nut is disposed on the lead screw, wherein rotary motion of the lead screw facilitates liner motion of the nut on the lead screw. The drive shaft is rigidly disposed on the nut and configures linear motion along with the nut. The connecting mechanism is functionally connected to the drive shaft and the electrical system for facilitating activation and de-activation of the electrical system. | 09-18-2014 |
| 20140260732 | CEMENT DEVICE RELEASE MECHANISM - A holding device having release mechanisms for securing and releasing one or more ball, dart, and/or plug members from the holding device into a tubular string disposed in a wellbore. The release mechanisms may include a planetary gear arrangement for extending and retracting a plunger member disposed below the ball, dart, and/or plug members. The release mechanisms may include a bevel gear arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members. The release mechanisms may include a pivotable, spring type arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members. | 09-18-2014 |
| 20140283635 | MAGNETIC LOAD SENSOR UNIT FOR USE IN A LINEAR MOTION ACTUATOR, AND LINEAR MOTION ACTUATOR - A magnetic load sensor unit for use in a linear motion actuator is provided which is less likely to suffer from hysteresis errors during use while being mounted in the linear motion actuator, and which can reduce the axial length of the linear motion actuator. The magnetic load sensor unit is configured to detect the magnitude of an axial load applied to an object from the linear motion actuator. The sensor unit includes a flange member configured to be deflected when a reaction force to the axial load is received through a thrust bearing, a magnetic target which generates magnetic fields; and a magnetic sensor arranged such that its position relative to the magnetic target changes when the flange member is deflected. The flange member has an axial end surface in which a groove is formed with which rolling elements of the thrust bearing are in rolling contact. | 09-25-2014 |
| 20140290401 | STEERING APPARATUS - An object of the present invention is to provide to suppress deformation of a terminal member caused by abutting contact of the terminal member with a housing side during attachment of the terminal member to the housing. When a terminal bolt is mounted, a ground terminal rotates in conjunction with rotation of the terminal bolt. In this case, a side edge of an abutting portion, which is formed like a plate, comes into abutting contact with a side surface of a second housing. At this time, a side edge of the terminal main body, which is also formed like a plate, also comes into abutting contact with the side surface. Thus, the rotation of the ground terminal is regulated. | 10-02-2014 |
| 20140290402 | ELECTRIC LINEAR MOTION ACTUATOR - An electric linear motion actuator capable of accurately controlling the axial position of an outer ring member is provided. A plurality of planetary rollers are kept in rolling contact with the cylindrical surface formed on the outer periphery of a rotary shaft. Helical ribs formed on the inner periphery of the outer ring member are engaged in circumferential grooves formed on the outer periphery of each of the planetary rollers. A carrier retains the plurality of planetary rollers. A revolution sensor detects the rotation angle of the carrier. | 10-02-2014 |
| 20140305237 | ACTUATOR - An actuator comprises: a housing which is provided with an opening; a slider which is installed so as to be movable relative to the housing; a drive means which is installed in the housing and which moves the slider; at least a pair of seal members which is disposed at the opening of the housing so as to face each other and which exhibits dust-proof and drip-proof functions by engaging with each other; and move-through members which are mounted to both sides of the slider in the movement direction thereof and which move through the pair of seal members. The move-through members each comprise: a move-through section which pushes apart the pair of seal members in the direction in which the pair is separated; a cover section which covers an expanded opening formed between the pair of seal members when the pair is pushed apart by the move-through section; and an opening restriction section which, when the pair of seal members is pushed apart from each other by the move-through section, restricts the amount of opening between the pair of seal members and in turn restricts the size of the expanded opening. | 10-16-2014 |
| 20140311263 | WORM AND WHEEL POWER STEERING GEARBOX - A power assist steering system utilizing a steering gearbox with a worm-screw to gear-segment transition from a steering-wheel shaft to a sector shaft and a worm-screw to worm-wheel transition from a power-assist shaft to the steering-wheel shaft. The worm-screw and worm-wheel combination for the power-assist shaft to the steering-wheel shaft may be replaced with a ballnut worm-screw and a ball-track worm-wheel. The system provides for an additional amount of 800 watts or more of power to be made available at the sector shaft with 1600 watts or less of power being made available at the power-assist shaft. | 10-23-2014 |
| 20140311264 | Anchor Tower - Anchor towers useful in the alteration of a position of an item connected to an anchor are described. An anchor tower includes an inner sleeve and an outer sleeve disposed over and operably connected to the inner sleeve such that movement of the outer sleeve results in movement of the inner sleeve. A groove is disposed on the inner sleeve and an inwardly-extending projection is disposed on the outer sleeve. Relative movement between the inner and outer sleeves results in movement of the projection within the groove. This movement can produce desired movement of a portion of the inner sleeve, such as a distal arm, based on a structural configuration of the groove. | 10-23-2014 |
| 20140311265 | LINEAR DRIVE FOR FURNITURE - An electromotive linear drive, in particular for adjusting movably mounted parts of lounging and seating furniture, has a drive motor, a threaded spindle, a speed-reducing gear unit arranged between the drive motor and the threaded spindle, and a spindle nut ( | 10-23-2014 |
| 20140318290 | POWER TOOL AND METHOD OF OPERATING AN AUTOMATED DRILLING OPERATION - A power tool includes a pneumatic motor with an output shaft, a spindle that is drivingly connected to the output shaft via a drive gear to provide a rotational movement to the spindle and via a feed gear to provide a translational movement to the spindle. A cylinder that governs the gear transmission to the feed gear is arranged to be translated between a retraction gearing position and an advancement gearing position. The retraction gearing includes a retraction torque limiting coupling adapted to be released when an operational torque (T) exceeds a retraction threshold torque (T | 10-30-2014 |
| 20140326089 | ACTUATOR HAVING BUFFER STRUCTURE - An actuator includes a drive screw ( | 11-06-2014 |
| 20140326090 | METHOD FOR PRODUCING A THREADED PART AS COMPOSITE COMPONENT, ROLLER SCREW DRIVE, LINEAR ACTUATOR, AND ELECTROMECHANICAL BRAKE BOOSTER HAVING SUCH A COMPOSITE COMPONENT - An electromechanical brake booster includes a hollow spindle and a hollow screw. Courses of thread are produced by deformation from metal and extrusion-coating them together with tubular supporting structures made of plastic. The hollow spindle and the hollow screw are produced as composite components. | 11-06-2014 |
| 20140338480 | LINEAR ACTUATOR WITH SPEED-ADJUSTABLE QUICK RELEASE MECHANISM - A linear actuator ( | 11-20-2014 |
| 20140352466 | Electric Linear Actuator - An electric linear actuator has a cylindrical housing, an electric motor, a speed reduction mechanism, and a ball screw mechanism. The ball screw mechanism has a nut and a screw shaft coaxially integrated with the drive shaft. The housing has receiving bores to receive the screw shaft. A cylindrical sleeve is securely press-fit into the receiving bore of the housing. The sleeve has one pair of axially extending recessed grooves formed on its inner circumference at diametrically opposed positions. A guide pin, mounted on the end of the screw shaft, engages the recessed grooves. An annular groove is formed near an opening of the receiving bore of the housing. The sleeve is held in the receiving bore by a stopper ring snapped into the annular groove. | 12-04-2014 |
| 20140366662 | SPINDLE DRIVE FOR AN ADJUSTMENT ELEMENT OF A MOTOR VEHICLE - The invention relates to a spindle drive for an adjusting element of a vehicle comprising a drive motor with a spindle-spindle nut gear arranged downstream for producing a drive force along a geometric spindle axis, wherein two connectors for transferring the drive force are provided, wherein an internal housing connected to the one connector and an external housing connected to the other connector are provided, and wherein during the motorized adjustment, the internal housing runs in a telescopic manner. It is proposed that at least one of the two housings, is designed to be at least in two parts and is provided via a first axial housing portion of a first housing part made of a first material and via a second axial housing portion of a second housing part made of a second material. | 12-18-2014 |
| 20140373651 | Angular Motion Control System and Method - An apparatus and method for imparting an angularly rotational movement. The apparatus includes a cylinder having an internal portion, a rod operatively positioned within the internal portion of the cylinder, a first bearing operatively positioned about rod; a second unidirectional bearing operatively positioned about the rod and a motion program for selectively inputting incremental radial motion to the rod. The apparatus may also include a force generator for linearly moving the rod in a linear axial motion along an axis of the cylinder. | 12-25-2014 |
| 20140373652 | ADAPTER DIRECT DRIVE WITH MANUAL RETRACTION, LOCKOUT AND CONNECTION MECHANISMS - A surgical device adapter for coupling an end effector to a handle assembly is disclosed. The surgical device adapter includes: a housing; a drive mechanism disposed within the housing and couplable to the handle assembly and the end effector; and a drive coupling assembly coupled to the surgical device adapter and selectively couplable to the handle assembly, the drive coupling assembly including a retraction assembly selectively couplable to the drive mechanism such that rotation of the drive coupling assembly about a longitudinal axis defined by the surgical device adapter and relative to the housing actuates the drive mechanism. | 12-25-2014 |
| 20140373653 | RACK AND OPTICAL APPARATUS HAVING THE SAME - A rack includes a first member including a main tooth, a second member including an opposite tooth disposed opposite the main tooth, the second member being rotatable with respect to the first member, a first forcing unit configured to force the main tooth, and a second forcing unit configured to force the main tooth and the opposite tooth closer to each other. On a plane perpendicular to a central axis of a lead screw, each of a part at which the first forcing unit forces the first member, a part at which the second forcing unit forces the first member, and a part at which the second forcing unit forces the second member is disposed on a movable member side with respect to a straight line connecting a rotating axis of the second member and the central axis. | 12-25-2014 |
| 20150007675 | SYSTEMS AND METHODS FOR LOAD CELL AND MULTI-ROW THRUST BEARING INTEGRATION WITH BALL SCREW AND ACTUATOR DRIVE UNIT HOUSING - An electromechanical actuator (“EMA”) comprising an actuator drive unit (“ADU”) housing and a ball screw is disclosed. The ball screw and ADU housing may interface to form a multi-row thrust bearing (MRTB). Further, the ball screw may be situated at least partially about the ADU housing, an outer surface of the ADU housing may include a first ADU raceway, and an inner surface of the ball screw may include a second inner ball screw raceway. Either or both raceways may comprise hemispherical structures. Further, the first raceway and the second raceway may interface to form a multi-row thrust bearing | 01-08-2015 |
| 20150027250 | Tensile loaded leadscrew drive - An improved leadscrew drive uses thrust bearings with a mechanical space between a bearing and its support allowing the leadscrew and bearings to move axially, placing the leadscrew in tensile loading, eliminating leadscrew columnar buckling and allowing the use of a smaller diameter and finer pitch lead leadscrew. | 01-29-2015 |
| 20150033885 | Linear Actuator - A linear actuator to provide the moving force for adjustable furniture, such as beds, chairs or tables. The linear actuator includes a drive assembly, rigid arm, and linkage assembly. The rigid arm includes a pusher block with one or more attachment means where the linkage assembly is attached. | 02-05-2015 |
| 20150033886 | DRIVING APPARATUS WITH TAPER SCREW AND ELASTIC DRIVING MEMBER TO DISPLACE OBJECT - A driving apparatus, which adjusts a position of a member to be driven, includes a driving member connectable with the member to be driven and made of an elastic member, a female screw that penetrates the driving member, and a taper-shaped male screw configured to be screwed into the female screw. The driving member has a cutting portion that penetrates in an axis direction of the female screw so that an inner circumference of the female screw is discontinuous, and the driving member is configured to move in an axis direction of the male screw in a state where the male screw is screwed into the female screw to displace the member to be driven in a direction orthogonal to the axis direction of the male screw. | 02-05-2015 |
| 20150040701 | Single-Axis Actuator - As compared to a single-axis actuator in which a ball returning passage of a ball screw mechanism is made of a circulating tube, the cross-sectional shape perpendicular to the longitudinal direction of a threaded shaft of a slider can be made small, when the diameter of the outer circumferential circle of the threaded shaft of the present invention is same as that of the circulating tube type, and the load capacity can be made large, when the size in the longitudinal direction of the threaded shaft of the slider of the present invention is same as that of the circulating tube type. The ball returning passage for returning the balls ( | 02-12-2015 |
| 20150040702 | LENGTH-ADJUSTABLE UNIT - A length-adjustable unit includes a tubular outer component, an inner component displaceably guided in the outer component, issues from the outer component arranged outside of the outer component has a connecting element, and an additional connecting element arranged at the assembly end, opposing the exit end, of the outer component. The additional connecting element, or an intermediate element rigidly connected to the assembly end of the outer component, has at least one annular shoulder extending in the circumferential direction of the outer component over the full 360°, while at least one engaging element is associated with the intermediate element, which is rigidly connected to the assembly end of the outer component, or the additional connecting element, and this engaging element is engaged with the annular shoulder to be slidingly displaceable in the circumferential direction but positively engaged in a longitudinal direction. | 02-12-2015 |
| 20150047443 | ACTUATOR WITH MULTI-STAGE GEARS - An actuator with multi-stage gears includes a worm gear shaft driving assembly having a worm gear shaft, an electric motor having a transmission shaft, an annulus gear arranged between the worm gear shaft and the transmission shaft, and a plurality of multi-stage gears. The annulus gear includes an inner gear and a moving end actuated cooperatively with the inner gear on two ends thereof. The moving end is connected to and driving the worm gear shaft to rotate; each multi-stage gear is arranged between the transmission shaft and the inner gear; each multi-stage gear includes a first and a second outer diameter portions. The outer circumferential edges of the first and second outer diameter portions includes a helical gear engaged with the transmission shaft and a spur gear engaged with the inner gear respectively. Therefore, the actuator has merits of simplified components and reduced volume. | 02-19-2015 |
| 20150047444 | MOTOR DRIVEN LINEAR ACTUATOR AND ELECTRIC MOTOR THEREOF - A motor driven linear actuator comprises an electric motor, a ballscrew device, and a rolling bearing. The electric motor includes a motor shaft having a first end portion. The first end portion includes an end surface and a receptacle having a first accommodation space. The ballscrew device includes a screw having a first end portion coaxially connected to the first end portion of the motor shaft. The first end portion of the screw includes a first section to be accommodated in the first accommodation space for fixing the screw with the motor shaft. The rolling bearing is disposed between the electric motor and the ballscrew device for supporting the first end portion of the screw. The end surface of the motor shaft contacts and abuts against the rolling bearing for limiting the movement of the rolling bearing between the electric motor and the ballscrew device. | 02-19-2015 |
| 20150059502 | CLAMPING APPARATUS - A clamping apparatus includes a main shaft, at least two pushing members, a follow member movably sleeved on the main shaft, a coupling member fixedly sleeved on the main shaft, at least two first linkages respectively pivoted to the follow member, at least two second linkages, and a nut. Each of the at least two second linkage is pivoted to the corresponding first linkage, the coupling member, and the corresponding pushing member. The nut is movably sleeved on the main shaft and positioned at a side of the follow member away from the coupling member. The nut is configured to move the follow member towards the coupling member, to enable the at least two pushing members to move away from the main shaft. | 03-05-2015 |
| 20150068335 | Methods and apparatus for selective rod actuation - In exemplary implementations, a target rod is actuated. The target rod is part of a set of threaded, elongated rods, the longitudinal axes of which are substantially parallel to each other. The set of rods has an interior region and a perimeter region. Actuators induce vibrations in a set of perimeter rods. These vibrations are substantially perpendicular to the longitudinal axes. Furthermore, the vibrations are transmitted to interior rods, causing a target rod in the interior region to rotate about, and translate along, the longitudinal axis of the target rod. The target rod undergoes stick-slip motion relative to adjacent rods. | 03-12-2015 |
| 20150075305 | APPARATUS FOR OPENING AND CLOSING TRUNK FOR VEHICLE - An apparatus for opening and closing a trunk for a vehicle, may include a motor unit equipped with a motor, an inner tube provided outside the motor unit to surround the motor unit, with a plurality of protrusions protruding from an outer circumference of the inner tube, an outer tube provided outside the inner tube to surround the inner tube and including a threaded groove being indented along an inner circumference of the outer tube, a bar-shaped spindle having a threaded portion on an outer circumference thereof, and coupled to the motor unit to cause the threaded portion of the spindle to engage with the threaded groove of the outer tube when the motor may be rotated, thus allowing the spindle to perform translation simultaneously with rotation, and an elastic member-wound on an outer circumference of the outer tube. | 03-19-2015 |
| 20150082925 | Gear Motor Pump Assembly - A compact gear motor pump assembly is disclosed. The gear motor pump assembly includes a motor driving a gear train and an output shaft in a first direction and a second direction, creating a pumping action. The present gear motor pump assembly offers an efficient and quiet operation through incorporation of springs within the assembly. The present assembly is designed for use with devices, specifically medical devices requiring a pumping action, for example, breast pumps. | 03-26-2015 |
| 20150096392 | ACTUATOR HAVING AN OFFSET MOTOR USING A FLEXIBLE TRANSMISSION, AND ROBOTIC ARM USING SUCH AN ACTUATOR - The invention concerns a flexible transmission ( | 04-09-2015 |
| 20150101428 | Electric Linear Actuator - An electric linear actuator has a housing with an electric motor mounted on the housing. A speed reduction mechanism and ball screw mechanism converts rotational motion to axial linear motion. A nut is rotationally but axially immovably supported by bearings on the housing. A screw shaft is coaxially integrated with the drive shaft. The shaft is inserted into the nut, via helical grooves and a large number of balls. The screw shaft is non-rotationally supported on the housing but is axially movable. The housing has a first housing and a second housing arranged with their end faces abutting against each other. Joining surfaces of the end faces of the first and second housings are sealed by a curing liquid curable material. | 04-16-2015 |
| 20150114150 | ELECTROMECHANICAL ACTUATOR PROXIMAL POSITION STOPPING ASSEMBLY - An electromechanical actuator (EMA) is disclosed. The EMA may comprise an EMA housing, a ball nut extending axially within the EMA housing, a ball screw extending axially within the ball nut, and/or an actuator drive unit (ADU) housing extending axially within the ball screw, the ADU housing having a proximal stop that extends radially outward of the ADU housing. The ball nut may be configured to translate axially in a proximal direction in response to a rotation by the ball screw, and the ball nut may be configured to be halted in the axially proximal translation in response to contact with the proximal stop. The proximal stop may be coupled to the ADU housing. The proximal stop may comprise a continuous annular structure. | 04-30-2015 |
| 20150122061 | ELECTROMECHANICAL ACTUATOR DISTAL POSITION STOPPING ASSEMBLY - An electromechanical actuator (EMA) is disclosed. The EMA may comprise an EMA housing having a distal stop that extends radially inward towards a longitudinal axis of the EMA housing, a hail nut extending axially within the EMA housing, and/or a ball screw extending axially within the ball nut, The ball nut may translate axially in a distal direction in response to a rotation by the ball screw, and/or the ball nut may be halted in the axially distal translation in response to contact with the distal stop. The distal stop may be coupled to the EMA. housing. The distal stop may comprise a continuous annular structure. The EMA may further comprise a seal located radially inward of a portion of the distal stop, which may be in contact with said portion and the ball nut and adapted to prevent debris from entering the EMA. | 05-07-2015 |
| 20150135867 | SWING TYPE POWER DOOR LOCK MOTOR - A swing type power door lock motor includes a housing having mounted therein a drive unit, which includes a motor, a transmission unit, which includes a screw shaft connected to the motor and a transmission seat threaded onto the screw shaft, and a swing unit, which includes a sector gear meshed with the transmission seat and a swing arm connected to the sector gear. When the motor is started, the screw shaft is driven to move the transmission seat, causing the sector gear to bias the swing arm between a locking position and an unlocking position. | 05-21-2015 |
| 20150316130 | LINEAR ACTUATOR FOR MOTION SIMULATOR - A linear actuator comprising a motor having an output shaft. A casing of the motor has an inner cavity defining a joint surface. A threaded shaft is within the inner cavity of the casing, and a bearing within the inner cavity. A coupling assembly couples the output shaft to the threaded shaft, and has a first coupling component receiving the rotational output from the motor, and a second coupling component coupled to the first coupling component for transmission of the rotational output to the threaded shaft. A substantial portion of a coupling is in an axial section of the linear actuator delimited by a proximal and distal surface of the bearing. A sliding tube is within the inner cavity and translates relative to the casing. A traveling nut is connected to the sliding tube for moving therewith for converting a rotational motion of the threaded shaft into a translation of the sliding tube. | 11-05-2015 |
| 20150316131 | LINEAR ACTUATOR FOR MOTION SIMULATOR - A linear actuator comprises a motor having an output shaft. A casing of the motor has an inner cavity with a counterbore seat surface. A threaded shaft is within the inner cavity. A bearing is received in the counterbore seat surface. A coupling assembly has a first coupling component receiving the rotational output from the motor, and a second coupling component coupled to the first coupling component for transmission of the rotational output to the threaded shaft. A sliding tube is sliding arrangement with the casing for moving in translation relative to the casing. A traveling nut is in the sliding tube for moving therewith for converting a rotational motion of the threaded shaft into a translation of the sliding tube. An integral driven assembly unit comprising the bearing, the threaded shaft, the traveling nut and the sliding tube interconnected to one another so as to be removable by pulling out the integral driven assembly as a whole from the inner cavity of the casing via the proximal end. | 11-05-2015 |
| 20150330488 | PRELOADING DEVICE FOR A ROLLER SCREW MECHANISM GUIDED IN ROTATION - A linear actuator comprises a roller screw mechanism guided in rotation with respect to a structure by two angular-contact ball bearings, the roller screw mechanism comprising rollers interposed between an endless screw and two tapped rings which are joined together in rotation and free in translation. Each tapped ring is secured to an inner ring of a ball bearing. The linear actuator further comprises a single preloading device capable of applying load between two outer rings of the angular-contact ball bearings respectively, thereby simultaneously allowing the loading of the roller screw mechanism and the rotational guidance of the roller screw mechanism with respect to the structure. | 11-19-2015 |
| 20150336476 | SPINDLE DRIVE FOR LONGITUDINALLY ADJUSTING A MOTOR VEHICLE SEAT - A spindle drive for longitudinally adjusting a motor vehicle seat is provided. The spindle drive comprising an adjustment rail that can be longitudinally adjusted relative to a body mounted rail and an adjusting mechanism that includes a driving worm connected to a driving device as well as a spindle nut, the external teeth of which mesh with the external teeth of the driving worm, and the internal teeth of which mesh with the external thread of a spindle. The spindle nut is formed by a hybrid spindle nut that has a functional part, which is located in the force flux between the driving worm and the spindle, and at least one strengthening part, deflecting crash forces from the adjustment rail into the spindle. | 11-26-2015 |
| 20150342603 | ADAPTER ASSEMBLY FOR INTERCONNECTING ELECTROMECHANICAL SURGICAL DEVICES AND SURGICAL LOADING UNITS, AND SURGICAL SYSTEMS THEREOF - The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices. | 12-03-2015 |
| 20150345602 | Electric Linear Actuator - An electric linear actuator has a housing, an electric motor mounted on the housing, a speed reduction mechanism, and a ball screw mechanism. The ball screw mechanism has a nut and screw shaft. Both have helical screw grooves. The screw shaft is inserted into the nut, via a large number of balls. A sleeve is secured on the housing to prevent rotation of the screw shaft relative to the housing. At least one axially extending recessed groove is formed on the inner circumference of the sleeve. At least one guide pin, mounted on the end of the screw shaft, engages the recessed groove. A tapering chamfered portion is formed on the end of the nut. | 12-03-2015 |
| 20150352715 | MANIPULATOR - A manipulator includes an elongated main portion, a distal end portion, and a bendable portion provided between the main portion and the distal end portion; a plurality of linear members that extend from the distal end portion to the main portion via the bendable portion; a power generator; a plurality of power transmitters that transmit, to proximal ends of the linear members, the power generated by the power generator as linear motion in a longitudinal direction of the main portion; and a linear-member relaxing unit that relaxes the linear members in which tension is generated between the distal end portion and the power transmitters by pushing and pulling of the linear members by the linear motion transmitted from the power transmitters. | 12-10-2015 |
| 20150354679 | ELECTROMOTIVE LINEAR DRIVE IN THE FORM OF A DUAL DRIVE - An electromotive linear drive in the form of a dual drive adjust movably mounted parts of reclining and seating furniture. Two threaded spindles ( | 12-10-2015 |
| 20150374366 | ADAPTER ASSEMBLY FOR INTERCONNECTING ELECTROMECHANICAL SURGICAL DEVICES AND SURGICAL LOADING UNITS, AND SURGICAL SYSTEMS THEREOF - The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices. | 12-31-2015 |
| 20160017965 | LINEAR ACTUATOR - A linear actuator includes: a pinion shaft coaxially coupled to a motor shaft; a driven gear that is engaged with a pinion gear on the pinion shaft; a nut that rotates with the driven gear; a feed screw mechanism that converts rotation movement of the nut into linear movement of a rod; a coupling part allowing an outer peripheral surface of the motor shaft to be serration coupled to an inner peripheral surface of a vertical hole in the pinion shaft; and a pressurizing unit that generates a pressure that axially acts between e motor shaft and the pinion shaft in the coupling part. | 01-21-2016 |
| 20160040765 | LINEAR ACTUATOR - A linear actuator includes a back fixture formed of a first part, a second part, and a plastic bearing, the first part connecting with the second part, grooves are disposed inside the first part and the second part, and extra structures are disposed outside the plastic bearing. The plastic bearing is secured inside the first part and the second part with the grooves and extra structures. The back fixture can be directly fitted onto a bed frame by applying a certain force to make an elastic deformation of this back fixture, thereby accelerating the installation of the actuator. This not only significantly reduces the noise caused by the connecting portion during the operation of the actuator, but also reduces the wearing of connecting parts, thereby significantly extending maintenance-free life. | 02-11-2016 |
| 20160040766 | LINEAR ACTUATOR - A linear actuator with a support that includes a bearing support frame, a bearing, a worm wheel, and a spindle, the bearing support frame being configured to support and secure the bearing, the bearing being configured to support the worm wheel and riveted to the worm wheel and the spindle; and the worm wheel and the spindle are riveted. The present invention enables the actuator to run more stably and at least doubles the service life of the product; reduces the requirement of the precision of parts such as motor housing and back fixture, and ensures that the service life of the product meet requirements even when the dimension of a few parts is inaccurate; and therefore eliminates the abnormal noise generated by the spindle of the actuator. | 02-11-2016 |
| 20160084360 | ELECTRIC ACTUATOR WITH THREADED ROD - An electric actuator includes a threaded rod turned by a motor, the threaded rod having a drive zone extended on each side by threaded zones, one of the threaded zones collaborating with a stationary nut and the other of the threaded zones collaborating with a nut secured to a control member capable of translational movement along an axis parallel to the axis of the threaded zone, the threaded rod being moved with a helical motion. | 03-24-2016 |
| 20160108998 | movement converter device - A movement converter device between a drive organ and receptor organ, including a screw with an axis of rotation, translationally fixed and rotationally driven, a nut engaging with the screw and connected in translation to the receptor organ, a concentric sleeve, coaxially surrounding the nut and fixed in rotation and translation. A connection involving a cam and a follower connects the nut and the sleeve. The cam defines the movement conversion profile. | 04-21-2016 |
| 20160131234 | Single-Axis Actuator - As compared to a single-axis actuator in which a ball returning passage of a ball screw mechanism is made of a circulating tube, the cross-sectional shape perpendicular to the longitudinal direction of a threaded shaft of a slider can be made small, when the diameter of the outer circumferential circle of the threaded shaft of the present invention is same as that of the circulating tube type, and the load capacity can be made large, when the size in the longitudinal direction of the threaded shaft of the slider of the present invention is same as that of the circulating tube type. The ball returning passage for returning the balls ( | 05-12-2016 |
| 20160136031 | ARTICULATION WITH CONTROLLABLE STIFFNESS AND FORCE-MEASURING DEVICE - The subject matter of the invention is an articulation ( | 05-19-2016 |
| 20160167697 | ROTATION-LINEAR MOTION CONVERSION APPARATUS AND STEERING APPARATUS | 06-16-2016 |
| 20160186843 | HOBBY SERVO MOTOR LINEAR ACTUATOR SYSTEMS - A lead screw attachment mechanism for a linear actuator system is provided. The attachment mechanism comprises an attachment housing comprising a fixed cover configured to house the attachment mechanism. The attachment mechanism comprises a first coupling mechanism configured to couple the attachment mechanism to an output shaft of a motor and a second coupling mechanism configured to couple the attachment mechanism to a lead nut, wherein the lead nut is configured to move linearly along an axis defined by a length of the attachment mechanism. The attachment mechanism is configured to rotate about the axis, within the fixed cover. | 06-30-2016 |
| 20160201776 | STEERING APPARATUS OF OUTBOARD MOTOR AND OUTBOARD MOTOR BOAT | 07-14-2016 |
| 20160249993 | ADAPTING MANUAL LAPAROSCOPIC SURGICAL INSTRUMENTS FOR ROBOTIC TELESURGERY APPLICATIONS | 09-01-2016 |
| 20190145504 | LINEAR SERIES ELASTIC ACTUATOR | 05-16-2019 |
| 20220136310 | SPINDLE DRIVE FOR THE MOTOR ADJUSTMENT OF AN ADJUSTMENT ELEMENT OF A MOTOR VEHICLE - A spindle drive for the motor-driven adjustment of an adjustable element including a housing, a body connector, an adjustable element connector, a spindle nut, a spindle disposed in the housing and operatively connected to the spindle nut and the adjustable element. Either the spindle translate along a drive axis, extending in an axial direction, to move the adjustable element between an open position and a closed position, a planetary gear assembly operatively coupled to and disposed between the spindle nut and the motor, the planetary gear assembly including, a sun wheel, a planet carrier, a gear carried by the planet carrier, an annulus connected to the housing and arranged coaxially to the sun wheel, and a first frictional element non-rotatably fixed with respect to the housing and connected to either the planet gear or the planet carrier. The first frictional element brakes movement of the spindle or the spindle nut. | 05-05-2022 |
| 20220136591 | LINEAR ACTUATOR - A linear actuator | 05-05-2022 |
