| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074890340 | Shaft moves through rotary drive means | 42 |
| 20080196524 | Transmission Drive Unit With A Receiving Module, In Particular For Adjusting A Movable Part In A Motor Vehicle - The invention relates to a transmission drive unit ( | 08-21-2008 |
| 20080271553 | Actuating Mechanism and Brake Assembly - An actuating mechanism, particularly for a disc brake caliper, including a screw actuator having a screw | 11-06-2008 |
| 20080289440 | Linear/Rotary Drive Assembly - The invention relates to a linear/rotary drive assembly ( | 11-27-2008 |
| 20080295624 | Spindle Drive, in Particular for Adjusting a Movable Part in a Motor Vehicle , and a Method for Manufacturing this Spindle Drive - The invention relates to a spindle drive ( | 12-04-2008 |
| 20080314174 | Actuator for a Motor Vehicle with a Gear - The actuator for a motor vehicle has an electric motor driving an output shaft and a gear comprising a worm, a spindle nut and a spindle. The worm is rotatably connected to the output shaft. The spindle nut comprises a worm gear that engages the worm and also a spindle thread that engages the spindle. The worm has a worm axis and the spindle nut has a spindle nut axis. The worm axis and the spindle nut axis draw an angle alpha of between about 85° and about 5° and, in one embodiment, between about 70° and about 40°. | 12-25-2008 |
| 20090158870 | Linear Actuator - A linear actuator orderly comprises an inner pipe, a middle pipe and an outer pipe, and the pipes are pivotally connected with each other. Each pipe is formed with at least three arc-shaped portions and three guiding portions, and the pipes abut against each other. The outer pipe is axially formed with a screw and two positioning rods that are passed through the middle pipe and the inner pipe, respectively. One end of each positioning rod is fixed with a pulling member, and one end of each pulling member is fixed to the inner pipe. The middle pipe is axially formed with a pushing post threaded with the screw. The pushing post and the middle pipe are pivotally disposed with a guiding wheel for rolling the pulling members, respectively. The pipes can be moved by the relative motion of the screw and the pushing post by cooperating with the guiding wheels and the pulling members, such that the pipes can be extended or retracted synchronously. | 06-25-2009 |
| 20090288509 | Mechanism for converting rotational motion into linear motion - A rotation/linear motion conversion mechanism provided with an annular shaft, a sun shaft arranged inside the annular shaft, planetary shafts arranged around the sun shaft, and a first gear mechanism and a second gear mechanism, which transmit force between the annular shaft and the planetary shafts. Each planetary shaft includes a first planetary gear, which configures part of the first gear mechanism, and a second gear, which configures part of the second gear mechanism. The planetary shaft is configured to permit relative rotation between the first planetary gear and the second planetary gear. | 11-26-2009 |
| 20100101343 | SPINDLE DRIVING MECHANISM FOR MACHINE TOOL - A spindle driving mechanism | 04-29-2010 |
| 20100206103 | LINEAR ACTUATOR - Linear actuator device, comprising a housing ( | 08-19-2010 |
| 20100236343 | Linear actuator having quick-release mechanism - A linear actuator with a quick-release mechanism allows the unpowered, loaded linear actuator to immediately return to its initial position by operating a rotatable involute cam of the quick-release mechanism. The quick-release mechanism is connected with a remote monitoring system so the current position of the linear actuator can be detected from a distant place. | 09-23-2010 |
| 20110016999 | CYLINDER DEVICE - A cylinder device is capable of heightening the feed accuracy of a screw shaft and stably controlling the feed speed of a conveying unit in a wide speed range. A ball screw shaft is inserted through a hollow shaft motor having an end fixed to a housing, and a decelerator that is a planetary reduction gear unit connected to the hollow shaft motor. Each of a pair of ball screw nuts, which are disposed to face each other and between which the hollow shaft motor and the decelerator are placed, meshes with the ball screw shaft. An internal gear is connected to a spacer disposed at an end of an output gear of the decelerator. An external gear connected to the ball screw nut meshes with the internal gear. The output gear of the decelerator meshes with a connection shaft by splines. | 01-27-2011 |
| 20120210810 | LINEAR ACTUATOR - A linear actuator is provided which includes a motor and a screw as an output shaft and in which the rotational movement of the motor is converted into the linear movement of the screw, wherein at least one retainer to hold a plurality of balls is disposed at the inner periphery of a hollow rotor of the motor, a ball screw is formed at the outer periphery of the screw, the balls are engaged with the ball screw such that the screw is set coaxial to the rotor, and wherein the screw provided with the ball screw is moved linearly by means of the rotation of the balls disposed circumferentially at the inner periphery of the rotor. | 08-23-2012 |
| 20120227524 | Electric Actuator - An electric actuator has a housing ( | 09-13-2012 |
| 20120266702 | BALL SCREW ASSEMBLY WITH ONE-PIECE DEFLECTING ELEMENTS - Ball screw assembly comprising a screw ( | 10-25-2012 |
| 20120291574 | HIGH INTEGRITY LINEAR ACTUATOR AND METHOD OF OPERATION - A linear actuator for an aircraft comprising a casing comprising a first casing section and a second casing section, wherein the first casing section and the second casing section are extendible and retractable with respect to each other, and a first drive mechanism and a second drive mechanism disposed in the casing, wherein the first drive mechanism and the second drive mechanism are operable independently of each other to drive at least one transmission element connected to an interior of the casing. | 11-22-2012 |
| 20120304787 | TELESCOPIC ACTUATOR - The invention relates to a telescopic actuator comprising a body ( | 12-06-2012 |
| 20130008269 | Electric Drive Unit for a Corner Steady - An overload protection in a drive unit for a steady or jack for a caravan comprises an electro-mechanical control system. A spindle is driven by a motor through a gearbox, wherein the motor is controlled through a power supply. A control device in the system comprises a movable part slidably seated on an output shaft of the gearbox, where the movable part is connected with the spindle. Movement between the shaft and the sliding part is counteracted by springs. The slidable part is provided with actuating points that may contact switches by axial movements. When a nut on the spindle reaches an end position, a reactive force in the spindle will cause the part to move against the force of springs, eventually actuating a switch and thereby causing interruption of the circuit, thereby protecting motor and engagement between nut and spindle from electric and mechanical overload. | 01-10-2013 |
| 20130019704 | Linear Step Motor - Provided is a linear step motor, the motor including: a motor housing fixedly mounted at an inner surface of a ring-shaped stator and formed with an opening; a rotor rotatably mounted at a space centrally formed at the stator; a cover member coupled to a bearing to open/close the opening; a nut shaft centrally arranged at the rotor, coupled to an outside of the cover member by passing through a shaft hole centrally formed at an inner ring of the bearing, coupled at a periphery by a magnet and formed with a female screw gear-combined with a lead screw member formed at an inner surface with a male screw; and a fixing unit integrally formed with the nut shaft and fixed to the bearing coupled to the cover member. | 01-24-2013 |
| 20130068052 | BALL SCREW DEVICE WITH A RING TO RETAIN A DEVIATION ELEMENT FOR THE BALLS - The ball screw system comprises a screw having an external threading, a nut having an internal threading and a series of balls being engaged in said threadings to link the screw and the nut, the nut comprising ball recirculation means comprising at least one ball deflection element inserted into a through hole of the wall of the nut, from outside to inside as far as abutment means, in which the nut is equipped with a retaining ring which bears on a peripheral wall of this nut, over at least a part of its length, and which bears permanently against the bottom of at least one groove formed on an external face of said deflection element and in which the retaining ring is engaged. | 03-21-2013 |
| 20130081489 | CRADLE DRIVE MECHANISM, A TABLE, AND A PATIENT IMAGING AND CARRYING APPARATUS - A cradle drive mechanism is provided. The cradle drive mechanism includes a drive motor, an intermediate frame and a screw and nut transmission device driven by the drive motor so as to drive linear reciprocating motion of the intermediate frame. The cradle drive mechanism also includes a rotating, shaft having a first driving wheel and a gear, a transmission belt, and a rack meshed with the gear so that, during linear reciprocating motion of the intermediate frame, the rack forces the gear to rotate and drive rotation of the first driving wheel, wherein rotation of the first driving wheel drives rotation of the transmission belt. The cradle drive mechanism also includes a cradle connector fixed on the transmission belt and configured to connect a cradle and to drive linear reciprocating motion of the cradle. | 04-04-2013 |
| 20130098186 | CONSTRUCTION ASSEMBLY FOR SPATIAL STRUCTURE WITH DRIVE SHAFT - Construction assembly ( | 04-25-2013 |
| 20130112022 | Electric Actuator - An electric actuator has a housing with an electric motor mounted on the housing ( | 05-09-2013 |
| 20130133449 | ELECTRIC STEERING LOCK DEVICE - An electric steering lock device includes: a shaft which includes a male threaded portion and which is rotationally driven by an electric motor; a slider which includes a female threaded portion threadedly engaging with the male threaded portion and which advances and retreats in response to the rotation of the shaft; a lock member which is turnable between a locked position and an unlocked position in response to the advancement and retreat of the slider; a stopper which holds the lock member at the unlocked position by engaging with an engagement portion provided in the lock member, the stopper being movable in a direction orthogonal to a turning plane of the lock member; and a spring for biasing the stopper in an engagement direction. The stopper engages with and disengages from the engagement portion of the lock member by being moved by an operation portion provided in the slider. | 05-30-2013 |
| 20130139623 | ENTERTAINMENT BUTTON DEVICE AND GAME MACHINE - An entertainment button device includes: an entertainment button; and a button-up-and-down mechanism including: a bias member to bias the entertainment button in a moving-up direction; a shaft member extending in a moving direction of the entertainment button; a rotating mechanism to rotate the shaft member; an engagement part to move up and down with the entertainment button; a convex portion having an inverted trapezoid shape and a concave portion having a trapezoid shape formed on an outer periphery of the shaft member; a spiral guide part on one end of the convex portion in a circumferential direction; a straight part formed on the other end of the convex portion in the circumferential direction. The straight part extends in parallel with a direction of a central axis of the shaft member; and a smoothing guide part extending in a direction orthogonal to the central axis of the shaft member. | 06-06-2013 |
| 20130139624 | ENTERTAINMENT BUTTON DEVICE AND GAME MACHINE - An entertainment button device includes: an entertainment button that a player can push; and a button-up-and-down mechanism configured to move the entertainment button up and down from a predetermined normal operation position to a protruding position in which the entertainment button protrudes upward from the normal operation position. The button-up-and-down mechanism includes: a shaft member extending in a moving direction of the entertainment button; a rotating mechanism configured to rotate the shaft member; an engagement part configured to move up and down together with the entertainment button; a convex portion having an inverted trapezoid shape and a concave portion having a traperized shape that are formed on an outer periphery of the shaft member; a spiral guide part formed in a spiral manner on one end of the convex portion in a circumferential direction. | 06-06-2013 |
| 20130145872 | POWER TRANSFER DEVICE - A power transfer device may include a support assembly, a bearing assembly, and an axle that has at least one groove that is angled in a predetermined manner. A guide pin may be received within the groove. Rotation of the axle may then cause a linear input to be received by an output component attached to the end of the axle. | 06-13-2013 |
| 20130174679 | ELECTRIC ACTUATOR - In a body of an electric actuator, dust collecting pipes are disposed as a pair along an axial direction of a hole portion of the body. The dust collecting pipes are connected respectively to negative pressure supply ports provided in an end block, and include plural first through fifth suction holes separated mutually along an axial direction of the dust collecting pipes. Distances between the first through fifth suction holes are formed so as to become smaller stepwise from one end side of the dust collection pipes, on the side of the negative pressure supply ports, to the other end side thereof. | 07-11-2013 |
| 20130213163 | LINEAR ACTUATOR - There is provided a linear actuator including an output shaft formed with a helical groove, a retainer having a cylindrical shape to receive the output shaft therein, and provided with a plurality of concave portions in dotted manner at positions of an inner peripheral surface thereof along the helical groove, and a rotor magnet fixed to the retainer. Balls are retained in the plurality of concave portions, respectively, and when the retainer is rotated, the balls are moved along the helical groove of the output shaft in a state where the balls are retained in the concave portions. | 08-22-2013 |
| 20130239713 | DISPLACEMENT DRIVE - The invention concerns a displacement device comprising a transmission | 09-19-2013 |
| 20130239714 | BALL SCREW DEVICE, LINEAR ACTUATOR AND VEHICLE STEERING SYSTEM - A ball screw device has a plurality of spiral raceways. One end and the other end of each raceway is connected via a bridge. An annular flange of a ball nut has a plurality of mounting portions at equal intervals in a circumferential direction. A fixing screw is fitted to each mounting portion. The bridges arranged so as to overlap with the annular flange in position in an axial direction are arranged at positions different in the circumferential direction from positions at which the mounting portions are arranged, and are arranged at unequal intervals in the circumferential direction. | 09-19-2013 |
| 20130305858 | FAST ROTARY DRIVE FOR A HANDHELD MICROMETER - A micrometer drive configuration for a handheld micrometer comprises: a frame; a spindle; a linear displacement sensor that senses a displacement of the spindle; a threaded spindle drive having a relatively coarse thread pitch, wherein the threaded spindle drive is attached to a spindle drive gear; a planetary drive gear that mates to the spindle drive gear; a ring gear surrounding and mating to the planetary drive gear; and a thimble generally surrounding the spindle drive gear, the planetary drive gear, and the ring gear. The thimble is coupled to drive the spindle drive gear through the planetary drive gear, and the planetary drive gear is sized and mounted such that the spindle drive gear turns faster than the thimble. | 11-21-2013 |
| 20130312555 | ELECTRIC LINEAR MOTION ACTUATOR AND ELECTRIC BRAKE SYSTEM - In an electric linear motion actuator for transmitting torque of a rotary shaft ( | 11-28-2013 |
| 20140102230 | BALL SCREW ACTUATOR INCLUDING A STOP WITH AN INTEGRAL GUIDE - An actuator includes a housing assembly, a ball nut, a ball screw, and a ball screw stop. The ball nut is rotationally mounted in the housing assembly, is adapted to receive an input torque, and is configured, upon receipt thereof, to rotate and supply a drive force. The ball screw is mounted within the housing assembly and extends through the ball nut. The ball screw has a first end and a second end, and is coupled to receive the drive force from the ball nut. The ball screw is configured, upon receipt of the drive force, to selectively translate between a stow position and a deploy position. The ball screw stop is mounted on the ball screw to translate therewith and is configured to at selectively engage the housing assembly while the ball screw is translating, and engage the ball nut when the ball screw is in the deploy position. | 04-17-2014 |
| 20140102231 | THREADED ROD RECIPROCATION INNER ROTOR DIRECT DRIVE MECHANISM - A threaded rod reciprocation inner rotor direct drive mechanism is provided. The threaded bush of the threaded rod set serves as the rotary shaft of the rotor section of the inner rotor torque motor. A part of the threaded rod set is a part of the inner rotor torque motor. Accordingly, the blind spot of the conventional technique is overcome to reduce the number of the components and minify the total volume and simplify the assembling and processing procedure. | 04-17-2014 |
| 20140150580 | ROTARY TO LINEAR TRANSMISSION - An apparatus for converting rotary motion to linear motion comprising: a cylindrical bore; a plurality of balls of uniform radius. The apparatus further comprises a rotor element, The rotor element further comprising a helical groove on the perimeter of the rotor element, wherein the helical groove comprises two ends and a race, wherein the race is configured to hold the plurality of balls in contact with a surface of the bore and is further configured to roll the ball in a helical groove path. The apparatus further comprises a recirculation conduit joining the two ends of the helical groove, wherein the conduit is configured to create a path for the plurality of balls and is further configured to allow the plurality of balls to remain in the helical groove during rotation of the rotor element. | 06-05-2014 |
| 20140157922 | ELECTRIC ASSIST STEERING SYSTEM - An electric assist steering system comprising a first lead screw connected to a steering shaft, a first lead screw nut engaged with the first lead screw, the first lead screw moveable along an axis of the first lead screw, a second lead screw, a second lead screw nut engaged with the second lead screw, the second lead screw connected to the first lead screw nut, an electric motor engaged with the second lead screw nut whereby the second lead screw nut is rotatable by the electric motor, and the first lead screw nut comprises a gear for engaging a steering system pinion. | 06-12-2014 |
| 20150020623 | STEP ACTUATOR - A step actuator includes a housing, a stator in the housing, a rotor including a magnet provided radially inward of the stator and a nut member inserted into the magnet and protruding through one side of the housing, a bearing rotatably supporting the nut member, a screw member coupled with the nut member to linearly move as the rotor rotates, and a mounting member supported on one side of the housing to support the screw member in such a manner that the screw member is linearly movable. The nut member includes an end portion passing through the bearing and a coupling portion extending from the end portion to couple with the bearing. | 01-22-2015 |
| 20150135868 | ELECTROMECHANICAL DRIVING ACTUATOR WITH DAMPING DEVICE - An electromechanical driving actuator with a damping device comprises an electric motor ( | 05-21-2015 |
| 20160017967 | BALL SCREW ACTUATOR INCLUDING A COMPLIANT BALL SCREW STOP - An actuator includes a ball nut, a ball screw, and a ball screw stop. The ball nut is adapted to receive an input torque and in response rotates and supplies a drive force. The ball screw extends through the ball nut and has a first end and a second end. The ball screw receives the drive force from the ball nut and in response selectively translates between a retract position and a extend position. The ball screw stop is mounted on the ball screw proximate the first end to translate therewith. The ball screw stop engages the ball nut when the ball screw is in the extend position, translates, with compliance, a predetermined distance toward the first end upon engaging the ball nut, and prevents further rotation of the ball screw upon translating the predetermined distance. | 01-21-2016 |
| 20160060843 | DROP LINE TENSIONING ASSEMBLY - A tensioning assembly including a primary rod and a hydraulic jack. The primary rod being positioned adjacent to a center section of the hydraulic jack. The tensioning assembly further including a frame housing anchored to the hydraulic jack. The tensioning assembly also includes a link rod connected to the primary rod and a primary adjusting and a secondary adjusting nut associated with the link rod to adjust the tension of a cable or line. | 03-03-2016 |
| 20160114704 | ADJUSTING DEVICE HAVING AN ADJUSTING MECHANISM ARRANGED ON A GUIDE RAIL - An adjusting device for adjusting two vehicle parts relative to each other is provided. The adjusting device comprising a first guide rail, which is longitudinally extended along a longitudinal axis and which is formed by a base and lateral legs connected to the base, a second guide rail, which is movably arranged on the first guide rail and which is longitudinally extended along the longitudinal axis, an adjusting mechanism, which is arranged between the legs on the first guide rail and which comprises a spindle nut, which can be rotated about the longitudinal axis in order to drive the adjusting device, a spindle, which is arranged in a rotationally fixed manner on the second guide rail and which is longitudinally extended along the longitudinal axis and which engages with the spindle nut in such a way that, when the spinal nut is rotated, the first guide rail is moved along the longitudinal axis relative to the second guide rail, and a fastening device for fastening the adjusting mechanism to the first guide rail. | 04-28-2016 |
| 20160186844 | Actuator, Sample Positioning Device, and Charged Particle Beam System - An actuator capable of reducing vibrations of its output shaft is offered. The actuator ( | 06-30-2016 |
