| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074412000 |
Directly cooperating gears
| 602 |
| 074325000 |
Interchangeably locked
| 510 |
| 074665000 |
Plural power paths to and/or from gearing
| 214 |
| 074434000 |
Rotary bodies
| 133 |
| 074661000 |
Plural prime movers selectively coupled to common output
| 95 |
| 074409000 |
Backlash take-up
| 86 |
| 074457000 |
Teeth
| 78 |
| 074405000 |
Disconnecting means
| 73 |
| 074467000 |
Lubrication
| 56 |
| 074411500 |
With brake means for gearing
| 42 |
| 074664000 |
Plural power paths from prime mover
| 39 |
| 074395000 |
Adjustable
| 29 |
| 074730100 |
With fluid drive
| 29 |
| 074411000 |
Yieldability in gear trains
| 29 |
| 074650000 |
Nonplanetary gearing differential type (e.g., gearless differentials)
| 20 |
| 074431000 |
Gear and rotary bodies
| 18 |
| 074810100 |
Reversal of direction of power flow changes power transmission to alternate path
| 14 |
| 074380000 |
Pivotally supported
| 11 |
| 074745000 |
In series plural interchangeably locked nonplanetary units
| 10 |
| 074404000 |
Reversing means
| 8 |
| 074388000 |
Follow-up mechanism
| 6 |
| 074406000 |
Displaceable elements
| 6 |
| 074655000 |
Single gearing unit includes fluid drive | 5 |
| 20080250897 | ROTATION TRANSMITTING DEVICE AND HYDRAULIC DRIVE UNIT - A hydraulic drive device, comprising a hydraulic motor ( | 10-16-2008 |
| 20110056330 | MULTI-GEAR POWERSHIFT TRANSMISSION - A multi-gear powershift transmission for a working machine, in particular a forklift truck, which has a driveshaft ( | 03-10-2011 |
| 20120174704 | Drive System and Method for Changing Driving Ranges of the Drive System - A drive system includes a first power branch and a second power branch. The first power branch includes a continuously variable transmission unit. The first power branch and the second power branch are connected by means of a summation gear. The summation gear includes a first, a second, and a third gear element. An output shaft of the continuously variable transmission unit is rotationally fixed to the first gear element. The second drive element can be connected to the output shaft of the first power branch. The third gear element is rotationally fixed to a mechanical transmission branch of the second power branch. | 07-12-2012 |
| 20140033863 | TRANSMISSION WITH REAR TORQUE CONVERTER - A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft. | 02-06-2014 |
| 20150059522 | TRANSMISSION ARRANGEMENT - A transmission arrangement including a torque converter, a first shaft fixed to rotate with a turbine of the torque converter about an axis, a second shaft fixed to rotate with a casing of the torque converter about said axis, a gear mounted on the first shaft and being fixed to rotate with the first shaft and a clutch selectively engageable to cause the first shaft to be fixed to rotate with the second shaft and being selectively disengageable to allow the first shaft to rotate relative to the second shaft, the clutch being rotatable about said axis. | 03-05-2015 |
| 074410000 |
Pressure distributing | 3 |
| 20100206110 | OUTPUT GEAR-EQUIPPED REDUCTION DEVICE AND METHOD OF ASSEMBLING THE SAME - The output gear-equipped reduction device has an output flange for taking out rotation reduced by a reduction mechanism, an output shaft provided on the output flange and having a smaller diameter than the output flange, and an output gear provided on the output shaft and having an addendum circle greater than the diameter of the output shaft. The output flange, the output shaft, and the output gear are integrally formed as an output flange section, an output shaft section, and an output gear section of a single output member in that order in the axial direction with the above-stated dimensional relationship maintained. The integral output member is supported at the output shaft section by a casing via bearing means. | 08-19-2010 |
| 20110314940 | Spur gear power sharing gear sets - In a gear transmission, pairs of spur drive gears provided with a helical cut spline on the inner diameter of the spur drive gears are mounted on a drive shaft provided with helical cut splines on the outer diameter of the drive shaft. The pairs of spur drive gears engage pairs of spur driven gears provided with a helical cut spline on the inner diameter of the spur driven gears mounted on a driven shaft provided with helical cut splines on the outer diameter of the driven shaft. In operation, there is equal load sharing among spur drive gears engaging the spur driven gears. | 12-29-2011 |
| 20140260742 | RACK AND PINION WEAR COMPENSATION - An automotive steering system includes a steering assembly including a rack and a pinion, and a rack bearing configured to contact the rack, the rack bearing disposed in a rack bearing bore of a housing. The system also includes a wear compensation assembly in fluid communication with a rack bearing bore cavity disposed within the rack bearing, the wear compensation assembly configured to draw fluid into the rack bearing bore cavity in response to movement of the rack bearing within the rack bearing bore. | 09-18-2014 |
| 074393000 |
Varying speed ratio | 2 |
| 20090139356 | VARIABLE RATIO STEERING APPARATUS - A variable ratio steering apparatus including an input shaft, an output shaft, a rotation speed increasing/reducing mechanism, a motor and a drive shaft that is driven by the motor. The rotation speed increasing/reducing mechanism includes an input gear with first internal teeth, an output gear with second internal teeth, a first planetary gear with first external teeth, a second planetary gear with second external teeth, a cylindrical member connecting the first and second planetary gears, and a rotary cam that is rotatively driven by the motor through the drive shaft to thereby turn the first and second planetary gears about a common rotation center of the input and output gears, so that a first meshing portion between the first external teeth and the first internal teeth and the second meshing portion between the second external teeth and the second internal teeth are allowed to displace in the circumferential direction. | 06-04-2009 |
| 20140000397 | CONSTANT TO VARIABLE GEAR PITCH FOR TEMPERATURE DOOR ROTATION | 01-02-2014 |
| 074216300 |
Toothed gear and recirculated unconnected elements | 2 |
| 20090193916 | Ball screw unit - The outer diameter of a spline nut and the inner diameter of a nut body holding portion of a housing gradually decrease in the downward direction. A ball screw protection unit includes a nut body taper face that is formed in the outer peripheral face of the spline nut, a holding portion taper face that is formed in the nut body holding portion, and a disc spring that is provided at the upper end of the spline nut and that biases the spline nut in such a direction that a friction force between the nut body taper face and the holding portion taper face increases (downward direction). | 08-06-2009 |
| 20120085187 | GEARLESS OFFSET STEERING SHAFT COUPLING - A steering shaft coupling device and method providing a gearless, offset steering arrangement. The device includes a housing having an first section and a second section forming a compartment having two adjacent openings therein, a first and a second CV joint, each CV joint seated within each one of the openings of the housing compartment, and a linkage joining the first and second joints. The CV joints may also function as slip joints. | 04-12-2012 |
| 074319000 |
Alternating rotary | 2 |
| 20080229853 | Twisted Belt Transmission - The invention relates to a transmission mechanism with step-down reduction, in which an open belt ( | 09-25-2008 |
| 20110041635 | TRANSMISSION - A transmission includes a body, a transferring gear set, a driving gear set, a reversible gear set, a unidirectional gear set, a wedge and a switcher. The body is mounted on a wheel. The transferring gear set includes a driving shaft and a transferring gear. The driving gear set includes a wheel hub and a driving gear. The reversible gear set includes a reversible sleeve and a reversible gear. The unidirectional gear set includes a follower gear, a unidirectional clutch and a unidirectional sleeve. The unidirectional clutch engages the reversible sleeve to the follower gear when the reversible sleeve is rotated in a first direction and disengages the reversible sleeve from the follower gear when the reversible sleeve is rotated in a second direction. The switcher moves the wedge to engage the recesses of the unidirectional sleeve and the reversible sleeve. | 02-24-2011 |
| 074318000 |
Alternating rotary or continuous | 2 |
| 20080271554 | Device for the rotationally fixed connection of a shaft to at least one component mounted to rotate on the shaft - A device for connecting, in a rotationally fixed manner, a shaft to at least one component which is rotationally supported on the shaft, such as a gear wheel of a gear in a transmission. The device includes an actuating element that is rotationally fixed, but axially slides on the shaft, such that when the element is actuated by an actor, the element actively, frictionally communicates with the component to at least approximately equalize a rotational speed difference, between the component and the shaft. The actuating element can be actuated by the actor with a force to frictionally connect the component to the shaft in a rotationally fixed manner. The device further includes a holding device, which retains the actuating element in a shift condition essentially equivalent to the rotationally fixed condition of the component without further actuation of the actor. | 11-06-2008 |
| 20100126290 | TRANSMISSION MECHANISM WITH INTERMITTENT OUTPUT MOVEMENT - A transmission mechanism with intermittent output movement includes an output shaft rotatably mounted to first and second cams and a sun gear mounted to the output shaft. A first rocker includes a first planet gear meshed with the sun gear and first and second rollers rotatably mounted on opposite sides of the first planet gear and respectively in contact with the first and second cams. A second rocker includes a second planet gear meshed with the sun gear. An end of a first connecting rod is mounted to the first rocker. An end of a second connecting rod is mounted to the second rocker. Two ends of a link are rotatably mounted to the other ends of the first and second connecting rods. A planet gear carrier is mounted to an input shaft coaxial to the input shaft and includes an end rotatably mounted to the first rocker. | 05-27-2010 |
| 074390000 |
Eccentric driving shaft and axle | 2 |
| 20090100953 | SPEED REDUCTION GEARING MECHANISM FOR PISTON OF AIR COMPRESSOR - A speed reduction gearing mechanism is adapted to couple a piston/piston rod of a cylinder of an air compressor to a motor spindle to ensure stability and smoothness of operation of the air compressor. The speed reduction gearing mechanism includes a reduction gear that is of a composite structure composed of an internal metallic portion that ensures mechanical strength and an extern ring-like toothed portion of plastic injection molding enclosing the internal portion. The reduction gear functions to convert the rotation of the motor spindle into reciprocation of the piston/piston rod with increased torque applied to the piston rod and effectively enhanced compression ratio between the piston and the cylinder and, due to the composite enclosing structre of the reduction gear, also to ensure more stable operation of the air compressor with reduced shock/vibration and reduced noise to thereby enhance the performance and efficiency of the air compressor. | 04-23-2009 |
| 20160033009 | Eccentric Drive - An eccentric drive for driving cutter mechanisms on mowing attachments for combine harvesters is provided that comprises a gearbox housing ( | 02-04-2016 |
| 074392000 |
Parallel shafts, adjustable gear mesh | 1 |
| 20150355452 | Adjustable Drive Mechanism - An adjustable drive mechanism, which may be used to control the elevation angle of a telescope or antenna, is disclosed. The adjustable drive mechanism can include a base plate configured to couple with a support structure and having a first spherical portion facing away from the support structure. In addition, the adjustable drive mechanism can include a gear box having a pinion gear to interface with a driven gear of a telescope or antenna, and a housing in support of the pinion gear and including a second spherical portion configured to interface with the first spherical portion of the base plate. The first spherical portion and the second spherical portion can be movable relative to one another in three rotational degrees of freedom to facilitate alignment and positioning of the pinion gear relative to the driven gear. | 12-10-2015 |
| 074391000 |
Central driving shaft in axle | 1 |
| 20100050798 | PINION SHAFT AND BEARING ASSEMBLY - A pinion shaft and bearing assembly is provided having two different surface finish interfaces. A first surface finish functions to locate the bearing to the pinion. A second surface finish functions to improve the cure time of an adhesive used to retain the bearing to the pinion. | 03-04-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080223173 | CARTRIDGES, SUCH AS DEVLEOPER CARTRIDGES, FOR AN IMAGE FORMING APPARATUS, SUCH AS A PRINTER - A cartridge includes an engagement gear which includes a first engaging portion and is configured to selectively rotate. The cartridge also includes a rotational body which includes a second engaging portion, and a center axis of the rotational body is aligned with a center axis of the engagement gear. Moreover, the cartridge includes an extension portion which is positioned offset from a center of rotation of the rotational body. The engagement gear and the rotational body are configured to selectively be positioned in one of a first state in which the second engaging portion and the first engaging portion are separated from each other, and a second state in which the second engaging portion engages the first engaging portion. The rotational body is configured to rotate with the engagement gear when the engagement gear rotates and the engagement gear and the rotational body are in the second state. | 09-18-2008 |
| 20080276755 | GEAR - A gear comprised of a tooth surface and a hard carbon film formed on at least a part of the tooth surface. When the gear is used in lubricant including a specific component, a friction of a tooth surface of the gear is largely decreased, and therefore the gear performs an excellent power transmission efficiency. Further, when the gear is employed in a planetary gear mechanism or speed reducing mechanism which has a plurality of meshing portions of gears, the power transmission efficiency of the mechanism is also improved. | 11-13-2008 |
| 20080282839 | Driving device and image forming apparatus - A driving device includes a shaft member and a driven gear rotatably disposed to the shaft member that is formed to be fixed to a surface plate member inside the driving device. The shaft member is provided with a flow passage for air penetrating along a shaft line thereof. A cavity is formed in a bearing member of the driven gear to be spaced from the shaft member. | 11-20-2008 |
| 20080314194 | CLINCHING LINEAR SLIDE DEVICE - The present invention permits linear slide motion as well as rotational motion between two sheets or panels of metal. This linear rail system utilizes clinching end stays to hold a loop of wire taut in a milled or stamped slot in a sheet metal panel. The loop of wire is stretched in the milled slot, being wrapped through the undercuts of the clinching end stays. When the stays are pressed into the milled slot with the wire in place, the wire is locked in due to the cold flow of metal around it. The taut spring wire captivates a round follower with flanges above and below the wire runs. The follower is then free to move linearly and rotate in the panel. This follower is self-clinching and can attach a second sheet to the assembly by pressing a hole in the second sheet onto the follower. | 12-25-2008 |
| 20090025507 | Vehicular air conditioning control operating apparatus - The invention can securely carry out an operation by a reduced number of the parts. The invention is provided with a base member having a gear lever arranged portion and a pinion member arranged portion, and provided with a communication hole communicating with the gear lever arranged portion in a closed wall portion of the pinion member arranged portion, a gear lever rotatably arranged in a bearing portion, having a gear portion and driving an output member (a control wire) based on a rotation, a pinion member rotatably arranged in the pinion member arranged portion and having a pinion portion engaging with the gear portion via the communication hole, a holder having a retention portion retaining the pinion member in one end, and having a fixing portion fixing to the base member in the other end, and an operation knob arranged so as to be outside fitted to the pinion member and integrally rotating the pinion member. | 01-29-2009 |
| 20090038433 | RECLINING APPARATUS - A vehicle seat reclining apparatus is provided in which the strength of a connecting portion positioned directly or nearly directly below a receiving wall face of a guide portion of a fixed-side housing is higher than in a conventional reclining apparatus. A protruding guide portion is provided in a fixed-side housing used to configure a reclining apparatus. A receiving wall face that makes contact with a locking gear used to configure the reclining apparatus and which thus guides movement of the locking gear, and a top face that is continuous with that receiving wall face, are formed in the guide portion. A tapered chamfer portion is present at an edge of the receiving wall face where the receiving wall face and the top face of the guide portion intersect. A thick portion with a tapered face that corresponds to the chamfer portion is provided directly or nearly directly below a base end portion of the receiving wall face. A connecting portion that connects the guide portion with other parts of the fixed-side housing is thickened at this thick portion. | 02-12-2009 |
| 20090038434 | Wave generator, wave gear device, and method of preventing reduction in efficiency of wave gear device - A wave generator ( | 02-12-2009 |
| 20090056497 | Rotation Tool - A downhole rotation tool comprises a housing rotatable and axially slideable in relation to a gear shaft. The gear shaft is located interior of the housing. A tube gear is located intermediate the gear shaft and the housing. Helical threading on the gear shaft exterior interacts with helical threading interior of the tube gear to impart rotation of the tube gear upon linear movement of the gear shaft. A gear face at a lower end of the tube gear interacts with a corresponding gear face on the housing. Face gear teeth of the tube gear and the housing include axially-aligned engaging surfaces to rotate the housing in a preferred direction on downward stroke of the gear shaft and include inclined slip surfaces to allow relative rotation of the housing gear face and the tube gear face upon upward stroke of the gear shaft. | 03-05-2009 |
| 20090064818 | HOBBY SERVO ADAPTER - Embodiments of hobby servo motor devices are disclosed. Embodiments include a hobby servo motor having a rotatable splined output shaft and a rotational enhancement mechanism that is rotatably engaged to the hobby servo motor splined output shaft. The rotational enhancement mechanism has an auxiliary shaft that is in-line with the hobby servo motor output shaft. Embodiments also include a support panel that is rigidly connected to the hobby servo motor and displaced from the hobby servo motor. The support panel has an aperture that receives and supports the auxiliary shaft. | 03-12-2009 |
| 20090193932 | Tool for Machining Workpiece Surfaces - It is suggested here that a tool for the machining of workpiece surfaces, with at least one adjustable, geometrically defined cutting edge ( | 08-06-2009 |
| 20090260479 | REDUCTION DRIVE GEAR FOR ALL TERRAIN VEHICLES - A reduction drive gear for all-terrain vehicles (ATV) such as the HONDA RINCON™. The gear reduces the drive ratio, thereby increasing the load pulling capacity of the vehicle and providing for a lower-end torque. It is comprised of a carbon steel bar cut to a seventeen-tooth drive gear (as opposed to the original nineteen-tooth drive gear found in typical ATVs). The reduction drive gear enables the ATV to be more powerful while avoiding any modifications to the motor, thereby eliminating the creation of undesirable heat in the motor. | 10-22-2009 |
| 20090320643 | COMPOSITE WAVE GEAR DRIVE - In a composite wave gear drive, a flexspline (having a number of teeth Nf) is disposed on the inner side of first and second circular splines (numbers of teeth Nc | 12-31-2009 |
| 20100024592 | FRICTION PIECE IN A LUBRICATED MEDIUM, WORKING AT CONTACT PRESSURES HIGHER THAN 200 MPA - Friction part in a lubricated medium working at contact pressures above 200 MPa and having a contact surface that is textured and subjected, before or after texturizing, to a case hardening treatment for a tribological function, wherein the surface is subjected to operations for producing a periodic network of micrometric cavities having predefined shapes and sizes and a period adapted to the width of the contact surface in order to promote passage to elastohydrodynamic lubrication regime. | 02-04-2010 |
| 20100024593 | COAXIAL TRANSMISSION, ESPECIALLY HOLLOW SHAFT TRANSMISSION FOR INDUSTRIAL DRIVE ENGINEERING - A coaxial transmission, especially a hollow shaft transmission for industrial drive engineering, having a high power density. The transmission comprises an input element ( | 02-04-2010 |
| 20100083793 | Lifting mechanism for an exercise apparatus - A lifting mechanism for an exercise apparatus frame base includes a housing made of lightweight material with a positioning cavity having a through hole. A covering cap having a circular internal rim is integrally formed within the positioning cavity and made by high strength material an injection molding process is performed. The bottom of the covering cap includes an axle hole corresponding to the through hole. The top of the covering cap has an opening with a positioning flange extending outwards. In this way, the drawback that the inside of the conventional plastic housing is easily damaged by the transmission gear can be eliminated. As a result, the weight can be minimized and the strength can be maintained. | 04-08-2010 |
| 20100175503 | Wave Generator for Wave Gear Device - The flexible bearing of the wave generator for a wave gear device is a deep-groove ball bearing in which an outer race and an inner race form an annular flexible bearing ring capable of bending in a radial direction. A ball diameter Da is set to be 5 to 15% greater than that of each model of the currently available product, and dimensions of orbital plane radii ro, ri of the inner and outer races are set so that the ratio ro/Da of the orbital plane radius ro of the inner race and the ball diameter Da, as well as the ratio ri/Da of the orbital plane radius ri of the outer race and the ball diameter Da, are both 0.8 to 2% less than those ratios in each model of the currently available product. When the ball diameter and the orbital plane radii are thus set, it is possible to substantially extend the service life of the flexible bearing. | 07-15-2010 |
| 20100313704 | INTERNAL GEAR MANUFACTURING METHOD AND METALLIC GLASS INTERNAL GEAR MANUFACTURED THEREBY - An internal gear manufacturing method capable of manufacturing time reduction and easy core removal, and a metallic glass internal gear manufactured thereby. A carbon core formed into a shape of an external gear is arranged in a thin, long tubular mold of a length equal thereto with a space extending longitudinally therealong. A molten metal material is pressure-injected under a temperature higher than a melting point thereof into the space between the mold and the core. The molten metal material is resolidified by rapid cooling at or above a critical cooling rate thereof together with the mold and the core. After resolidification of the molten metal material, the core is removed by pulverization or dissolution. Along internal gear formed of the resolidified metal material is cut into a plurality of segments of a prescribed length. | 12-16-2010 |
| 20100319484 | Wave Gear Device - A bending state known as “coning,” in which the amount of bending of the flexspline gradually decreases in accordance with the distance from the open end of the spline, occurs in cup-type or “silk hat”-type wave gear devices. A tooth profile in which the tooth depth is kept constant and in which the bottom lands and top lands are parallel to each other along the tooth trace direction is used as the basic tooth profile for the circular spline and the flexspline of the wave gear device. A taper surface is formed on a part of the top land near the open end of the flexspline in the basic tooth profile, whereby a modified tooth profile is obtained. The modified tooth profile is employed as the tooth profile for both of the splines. Both of the splines can be caused to mesh together without generating coning-induced interference. Both of the splines can also be subjected to gear cutting by a simple process using a typical machining mechanism. | 12-23-2010 |
| 20110100158 | SYSTEM FOR EFFECTIVE TRANSMISSION OF POWER - The present invention relates to a system for transmission of power comprising of a motor connected to a step down gear box connected to series of two step-up gear boxes through a coupling (C1), wherein said two step-up gear boxes are separated by another coupling (C2) such that the ratio of the radius of C1 to C1 is in the range of 1.4 to 1.9. | 05-05-2011 |
| 20110132140 | Transmission structure of meat tumbler - This invention relates to a transmission structure of meat tumbler, in which one end of drum's axle, extending toward a control box, of the meat tumbler is assembled with a gear, and a reduction machine is installed in the control box. A gear of the reduction machine meshes with the gear of the drum. A motor coupled to the reduction machine is provided within the control box. Essential benefits such as quiet operation process, effective power transmission, and prevention of improper parts stripping can be achieved by this stable transmission structure. | 06-09-2011 |
| 20110138963 | ACTIVE SEALING-DRAINING DEVICE - A sealing device is provided. The sealing device is for sealing a space formed by an inner shaft and an outer shaft and for directing a flow of fluid, the inner shaft and the outer shaft being rotatable about a common coaxial axis. The sealing device includes an inner seal element adapted for being coupled to the inner shaft so that the inner seal element is locked against rotation relative to the inner shaft, the inner seal element including a first inner sealing surface. The sealing device further includes an outer seal element adapted for being coupled to the outer shaft so that the outer seal element is locked against rotation relative to the outer shaft, the outer seal element including a first outer sealing surface. The first inner sealing surface and the first outer sealing surface are adapted to form, by contact with each other, a first seal area including a first channel arrangement including at least one channel configured to actively drain a fluid from the first seal area when the seal elements rotate with respect to each other. | 06-16-2011 |
| 20110185845 | REDUCTION UNIT PARTICULARLY OF THE EPICYCLIC TYPE COMPRISING A FAN - A reduction unit, particularly of the epicyclic type, comprising a casing for the rotary support and containment of an input shaft, of an output shaft, and of at least one reduction stage that is interposed between them, the input shaft being able to rotate by an actuation shaft of a motor, which can be associated monolithically and coaxially with the input shaft. The reduction unit comprises at least one fan, which is arranged substantially coaxially to the input shaft, proximate to the reduction unit, and is supported even indirectly by one of the shafts. | 08-04-2011 |
| 20110185846 | LOCK PIN-TYPE AUTOMOBILE SYNCHRONIZER - A lock pin-type automobile synchronizer includes a higher gear conical ring ( | 08-04-2011 |
| 20110232417 | Drive device with human power bidirectional input in constant rotary direction and same speed ratio - The present invention is related to a manpower driven device being able to perform specific bi-directional pedaling to provide constant directional output for driving the loading wheel train thereof, wherein its pedaling direction is selected by the rider according to his/her operating statuses of the muscles and joints, or further through the input in different driving directions to perform output in the same directional rotation and same speed ratio. | 09-29-2011 |
| 20110259144 | GEARING | 10-27-2011 |
| 20110290071 | HYBRID DRIVE FOR A MOTOR VEHICLE - A hybrid drive for a motor vehicle which has a combustion engine, a transmission with a transmission input shaft which can be coupled with the combustion engine, and an electric machine which is positioned between the combustion engine and the transmission. The electric machine has a stator and a rotor which interacts with the transmission input shaft and is supported by a transmission housing input part. The transmission input shaft is supported, by a fixed radial bearing and a spaced radial bearing, in a bearing journal of the transmission housing input part. The rotor is connected, in a rotationally fixed manner, to an extension of the transmission input shaft which protrudes from a bearing journal. A radial shaft seal is positioned at the end of the bearing journal, facing the rotor, and the two radial bearings are cooled and lubricated by transmission oil. | 12-01-2011 |
| 20120006152 | DRIVE SYSTEM FOR A MOTOR VEHICLE AND MOTOR VEHICLE HAVING SUCH A DRIVE SYSTEM - A drive system ( | 01-12-2012 |
| 20120011962 | GEAR WITH MULTIPLE MAGNETIC TOOTH ENGAGEMENT - A magnetic gear system is provided. The system has a first disk having a first axis and a plurality of first magnets; and a second disk having a second axis and a plurality of second magnets. The first and second axes are not collinear, and magnetic interactions between multiple ones of the first magnets and multiple ones of the second magnets cause the second disk to rotate when the first disk is rotated. | 01-19-2012 |
| 20120036958 | SPEED REDUCING DEVICE - Provided is a speed reducing device in which a thrust load is applied from a shaft of a counterpart machine to an output shaft, the speed reducing device including: a bearing directly supporting the output shaft to be rotatable and receiving a thrust load applied to the output shaft; a hollow body including a hollow portion and rotating along with the output shaft; and a connection member inserted into the hollow portion of the hollow body to be connected to the hollow body and the shaft of the counterpart machine, wherein the bearing receives the thrust load of the shaft of the counterpart machine applied to the output shaft through the connection member. | 02-16-2012 |
| 20120060647 | GEAR DEVICE AND METHOD OF MANUFACTURING SHAFT MEMBER - A gear device which has a shaft member including a gear portion and a shaft portion formed consecutively and integrally with the gear portion; and a fitting member that may be fitted into the shaft portion of the shaft member, wherein, in the shaft member, at least the gear portion may be formed by a plastic working, a guard portion protruding from a addendum circle of the gear portion to an outer side in the radial direction may be formed in an end portion of a shaft portion side of an axial direction of the gear portion, and the movement in the axial direction of the fitting member may be restricted by the guard portion. | 03-15-2012 |
| 20120111144 | GEAR | 05-10-2012 |
| 20120186390 | Staked Nut And Flange For Gear Support - A gearbox assembly includes a pinion gear having a gear stem extending axially through a tubular output stem of an output member with a threaded portion protruding from an output flange of the output member. A pinion nut includes a threaded inner bore threadably engaging the threaded portion of the gear stem to retain the output member to the pinion gear. An outer rim of the pinion nut defines an outer circumference having a tool recess and a deformation spaced circumferentially apart from the tool recess. The tool recess is adapted for receiving a tool to rotate the pinion nut in a first direction relative to the gear stem. The deformation engages an inner circumference of the output flange to prevent the pinion nut from rotating in a second direction relative to the gear stem. | 07-26-2012 |
| 20120204674 | HARMONIC MOTOR, DRIVE ASSEMBLY, INDUSTRIAL ROBOT, ROBOT BOOM AND ROBOT JOINT - A harmonic motor with a circular and internally geared stator, a flex spline coaxially arranged within the stator which comprises both external and internal gears, and a geared output shaft coaxially arranged within the flex spline. A drive assembly that includes a motor with a motor housing, a rotor, a rotor shaft, and a rear bearing for supporting the rotor shaft in the motor housing at a rear side of the rotor; and a strain wave gearing including a circular spline secured to the motor housing, a flex spline engaging the circular spline, a wave generator engaging the flex spline and secured to a drive end of the rotor shaft, and a wave generator bearing between the circular spline and the wave generator. The wave generator bearing serves as an exclusive drive end bearing for supporting the rotor shaft in the motor housing at a front side of the rotor. | 08-16-2012 |
| 20120247267 | Process And Apparatus For Installing Original Drive Gear On A Laser Printer Toner Cartridge Drum - A method is disclosed. The method provides an assembly that contains a first drum-cylinder having an inner periphery surface and a drive gear assembly, wherein a portion of the drive gear assembly is in contact with the inner periphery surface, separates the drive gear assembly from the first drum-cylinder, inserts the portion of the drive gear assembly into a second drum-cylinder, and couples the drive gear assembly to the second drum-cylinder. | 10-04-2012 |
| 20130247716 | STRAIN WAVE GEAR APPARATUS - A strain wave gear apparatus includes a rigid internal gear, a flexible external gear, and a wave generator. The wave generator includes an input shaft fixing member including eccentric cams, bearings respectively fixed to outer sides of the eccentric cams, and housings respectively fitted to outer peripheral surfaces of the bearings. The eccentric cams are arranged side by side in a direction of an inclined axis inclined with respect to an input rotation axis at an inclination angle (θ) in a manner that respective center axes of the eccentric cams are parallel to the inclined axis and decentered in directions opposite to each other from the inclined axis. The housings are each formed into a tapered shape so that an outer peripheral surface of each of the housings is held in surface contact with an inner peripheral surface of the flexible external gear. | 09-26-2013 |
| 20130276575 | GEAR, MOTOR-GEAR UNIT, VEHICLE, GENERATOR WITH A GEAR, AND FORCE TRANSMITTING ELEMENT - The application discloses a harmonic pin drive which comprises at least one outer ring gear with inner teeth that are adapted to the shape of pins of a pin ring, a transmitter for connecting to a rotor of an electric motor, a ball bearing that is supported on the transmitter and an arrangement of flexible means. The flexible means are distributed essentially on the circumference of a radius and the flexible means are provided for attachment to a casing. Furthermore, the flexible means comprise openings for inserting pins of the pin ring. Furthermore, an output shaft is provided for receiving a rotation of the outer ring gear. | 10-24-2013 |
| 20130319174 | WAVE GEAR DEVICE AND FLEXIBLE EXTERNALLY TOOTHED GEAR - In a hollow wave gear device, a rigid internally toothed gear and a wave generator are disposed adjacent along a center axis line so as to enclose a cylindrical barrel part of a flexible externally toothed gear from the outside. A pushed cylindrical portion adjacent to an external-tooth-formed cylindrical portion of the cylindrical barrel part is pushed from the outside and made to flex into an ellipsoidal shape by the wave generator disposed on the outside thereof, whereby external teeth partially mesh with internal teeth of the rigid internally toothed gear. The inside diameter dimension of a hollow part can be the inside diameter of the cylindrical barrel part of the flexible externally toothed gear, and a hollow wave gear device can be achieved which is formed with a hollow part having a large inside diameter. | 12-05-2013 |
| 20130327179 | HARMONIC REDUCER WITH STATIONARY FLEXSPLINE - A harmonic reducer with stationary flexspline is disclosed comprising a circular spline, a flexspline and a wave generator. The flexspline is assembled with the circular spline and the wave generator is assembled with the flexspline and a power source, so the flexspline deforms and partially engages with the circular spline. The flexspline is fixed while the circular spline is connected to an output shaft. Thus, when the power source drives the wave generator to rotate, the flexspline also drives the circular spline and the output shaft to rotate simultaneously. | 12-12-2013 |
| 20130333515 | FLEXSPLINE MOUNTING STRUCTURE OF HARMONIC REDUCER - A flexspline mounting structure of a harmonic reducer includes a circular spline, a flexspline and a wave generator. The flexspline is fixed and mounted to a mounting base with a plurality of elastic walls, and then the mounting base is mounted to the casing of the reducer. The circular spline is connected to an output shaft, so when the power source drives the wave generator to rotate, the flexspline also drives the circular spline and the output shaft to rotate simultaneously. By mounting the flexspline on the flexible elastic walls of the mounting base, the present invention can overcome the drawback of the uneven internal stress of the flesxspline during deformation, so the rupture of the flexspline can be reduced and the life thereof can be prolonged. | 12-19-2013 |
| 20130333516 | FLEXSPLINE STRUCTURE OF HARMONIC REDUCER - A flexspline structure of a harmonic reducer is disclosed, comprising a circular spline, a flexspline and a wave generator. The flexspline is manufactured from tubular material into a thin-walled cylinder with external gear and is assembled with the circular spline. The wave generator is assembled with the flexspline and a power source, so the flexspline deforms and engages with the circular spline partially. The flexspline is fixed while the circular spline is connected to an output shaft. When the power source drives the wave generator to rotate, the flexspline also drives the circular spline and the output shaft to rotate simultaneously. The flexspline in the disclosure is manufactured directly from tubular material to eliminate the forging process in the conventional flexspline processing, so the material wear is reduced and processing time of lathing and gear hobbing are decreased noticeably as well. | 12-19-2013 |
| 20140083245 | HARMONIC REDUCER WITH CLUTCH FUNCTION - A harmonic reducer with clutch function includes a circular spline, a mounting base, a flexspline and a wave generator. When a power source drives the wave generator to rotate in a first direction, a one-way clutch engages to lock the mounting base so as to deform the flexspline and hence rotate the circular spline in the first direction. When an external force is applied to the output shaft in the first direction, the mounting base is driven by the flexspline so the one-way clutch disposed thereon is disengaged by a force in a second direction. At this moment, the rotation speed of the wave generator is equal to zero relative to the flexspline, so the wave generator can be driven by the circular spline to rotate along with the flexspline, and the central axel of the wave generator can be driven to rotate as well. | 03-27-2014 |
| 20150047463 | SYSTEMS AND METHODS FOR IMPLEMENTING BULK METALLIC GLASS-BASED MACROSCALE GEARS - Systems and methods in accordance with embodiments of the invention implement bulk metallic glass-based macroscale gears. In one embodiment, a method of fabricating a bulk metallic glass-based macroscale gear, where at least either the thickness of the gear is greater than 3 mm or the diameter of the gear is greater than 9 mm, includes: obtaining design parameters of the gear to be formed; selecting a bulk metallic glass from which the gear will be formed based on the obtained design parameters, where the selected bulk metallic glass is characterized by a resistance to standard modes of wear and a resistance to brittle fracture such that a gear can be formed from the selected bulk metallic glass that accords with the obtained design parameters; and fabricating the gear from the selected bulk metallic glass that accords with the obtained design parameters. | 02-19-2015 |
| 20150107406 | SYSTEM AND METHOD FOR UNIFIED TORQUE TRANSMISSION AND ROTARY SEALING - A torque transmission and sealing assembly includes a ring gear having a first axial end, a second axial end opposite the first axial end, an inner surface including a plurality of teeth and an axial-facing surface at the first axial end, a barrel portion joined to the second axial end of the ring gear, and a plurality of annular, axial extending fingers integrally formed with the ring gear and extending from the axial-facing surface. | 04-23-2015 |
| 20150114174 | STRAIN WAVE DRIVE WITH IMPROVED PERFORMANCE - An improved strain wave drive system employs an outer circular spline part and an outer dynamic spline part spaced apart by a gap from each other in a widthwise (axial) direction and each having a array of internally facing gear teeth, a two-part inner flexible spline (flexspline) having two different sets of externally facing toothed projections offset by a gap from each other across a width extending in a widthwise (axial) direction, a wave generator coupled to the central rotor or shaft for generating a wave impulse that displaces the inner flexspline toothed projections into mesh with those of the outer circular spline part and an array of roller bearings supporting an inner surface across the width of the flexspline in rolling line bearing contact. | 04-30-2015 |
| 20150128761 | TRANSMISSION DEVICE - A transmission device includes an input shaft, a first transmission mechanism, a speed changing mechanism, and an output shaft. The first transmission mechanism includes a transmission shaft, an inner magnetic member received in the transmission shaft, a mounting housing coupled to the input shaft, and an outer magnetic member. The input shaft is configured to rotate the mounting housing. The outer magnetic member is received in the mounting housing and positioned adjacent to the inner magnetic member. A magnetic pole of the inner magnetic member is opposite to a magnetic pole of the outer magnetic member. The speed changing mechanism is coupled to the transmission shaft. The output shaft is coupled to the speed changing mechanism. | 05-14-2015 |
| 20150300475 | HOLLOW-TYPE STRAIN WAVE GEARING UNIT - A hollow-type strain wave gearing unit ( | 10-22-2015 |
| 20150316134 | STRAIN WAVE GEARING - First and second external tooth gear parts of a strain wave gearing are bent in an elliptic shape by a wave generator to engage with first and second internal tooth gears, respectively. The first and second external tooth gear parts are bent so as to have elliptic shapes the phases of which are rotated 90 degrees from each other about a rotational center line. A coupling external tooth gear part that maintains a circular cross-sectional shape which does not deform is formed in between the first and second external tooth gear parts. The coupling external tooth gear part is maintained so as to be coupled with a coupling internal tooth gear in an engaged manner. The strain wave gearing has high engagement rigidity and is capable of transmitting large torque. | 11-05-2015 |
| 20150345608 | CIRCULAR WAVE DRIVE - A circular wave drive system, and a method for use of a circular wave drive, are provided. In one embodiment, a circular wave drive is provided, the circular wave drive comprising: a substantially enclosed housing having a chamber therein, a ring-shaped wheel residing in the chamber, a wave generator having a wheel-driving portion that is oriented within the hollow central portion of the ring-shaped wheel; and an output element having a wheel-driven portion that is oriented within the hollow central portion of the ring-shaped wheel opposite the wheel-driving portion of the wave generator. | 12-03-2015 |
| 20150354686 | THREE POINT HARMONIC DRIVE - A harmonic drive is provided and includes a toothed harmonic ring gear, a harmonic wave generator including a rotor element, which includes an outer three-lobe wave profile, and a stator element configured to drive rotation of the rotor element. The harmonic drive further includes a harmonic flex spine radially interposed between the harmonic ring gear and the rotor element. The harmonic flex spine includes a toothed portion and a bearing element rotatably supportive of the rotor element within the toothed portion. The toothed portion is disposed to register with the toothed harmonic ring gear at three contact points defined by the outer three-lobe wave profile in accordance with the rotation of the rotor element. | 12-10-2015 |
| 20150362056 | HARMONIC DRIVE ACHIEVING A HIGH MESHING EFFICIENCY - A harmonic drive includes a circular spline, a flexspline meshed with the circular spline, and a wave generator abutted against the flexspline. Through a special parameter design to correct the perimeter curve of the wave generator, the meshing efficiency between the circular spline and the flexspline is increased, thereby improving the transmission accuracy and reducing the average load. | 12-17-2015 |
| 20160003338 | STRAIN WAVE GEARING HAVING DOUBLE-CONTACT NEGATIVE DEFLECTION TOOTH PROFILE - The addendum tooth profile of the inner teeth and outer teeth of a strain wave gearing is stipulated by a first and second similar curve obtained from the curve segment from an inflection point to a low point in a movement trajectory when the meshing of both teeth is approximated by rack meshing. The addendum tooth profile of the inner teeth is stipulated by a curve generated at the inner teeth in the process of the addendum profile of the outer teeth moving from the inflection point to the apex of the movement trajectory. The addendum tooth profile of the outer teeth is stipulated by a curve generated at the outer teeth when the addendum profile of the inner teeth moves from the inflection point to the apex. The addendum profile of the outer teeth makes double contact with the addendum profile and dedendum profile of the inner teeth. | 01-07-2016 |
| 20160010738 | HARMONIC DRIVE AND METHOD OF ASSEMBLING | 01-14-2016 |
| 20160025203 | WAVE GENERATOR OF STRAIN WAVE GEARING - A wave generator of a hollow strain wave gearing has a rigid plug and a needle roller bearing. The needle roller bearing has an inner ring trajectory surface formed in the plug external peripheral surface, a flexible outer ring, an outer ring trajectory surface formed in an inner peripheral surface of the outer ring, and needle rollers. An inner ring trajectory groove is formed in the plug external peripheral surface, and the inner ring trajectory surface is formed in a groove bottom surface of the inner ring trajectory groove. Inner-ring-side restricting surfaces for restricting the needle rollers from moving in the center axis direction are formed in groove side surfaces on both sides of the inner ring trajectory groove. A wave generator can be obtained, which is suitable for increasing the hollow diameter of a strain wave gearing. | 01-28-2016 |
| 20160047451 | WAVE GENERATOR OF STRAIN WAVE GEARING - A wave generator of a strain wave gearing has a rigid plug and a needle roller bearing mounted on the plug external peripheral surface. The plug external peripheral surface has a retainer engaging part for engaging with a retainer that would move in an axis line direction and for restricting the movement thereof along the axis line direction. The retainer has an outer ring engaging part for engaging with an outer ring that would move in the axis line direction and for restricting the movement thereof along the axis line direction. The movements of the retainer and the outer ring can be restricted without providing a separate member. A wave generator of a strain way gearing can be realized, which is provided with a roller bearing capable of restricting the movement of the outer ring with a simple structure. | 02-18-2016 |
| 20160047452 | HARMONIC DRIVE APPARATUS - A harmonic drive apparatus (also known as a strain wave gear) is constructed with a circular, flexible spline disc having a generally flat configuration or a slightly conical configuration. | 02-18-2016 |
| 20160061308 | STRAIN WAVE GEARING APPARATUS - Provided is a strain wave gearing apparatus which is able to make the most of the structural advantages of the flat form while achieving ideal mesh-engagement without involving a high degree of dimensional precision or any special adjustment mechanism. A strain wave gearing apparatus is provided with a stationary internal gear, a rotary internal gear disposed side by side with the stationary internal gear, a flexible planetary gear disposed on the inner peripheral side thereof for meshing partially with the internal gears by being deflected in the radial direction, and a wave generator disposed inside the flexible planetary gear for continuously deforming and deflecting the flexible planetary gear by rotation. In the apparatus, backlash during mesh-engagement is eliminated by making the base portions and of the internal gears and elastic. | 03-03-2016 |
| 20160084366 | WORM GEARING WITH HARMONIC DRIVE OR STRAIN WAVE GEARING PRIMARY - A gear system wherein a harmonic drive or strain wave gearing set is efficiently and effectively coupled to a worm drive, where the harmonic drive or strain wave gearing serves as the input and the worm drive serves as the output. By using the harmonic drive or strain wave gearing set as the primary, a very large reduction ratio is achieved in a right angle package with high torsional stiffness. Further, at high worm ratios, the system can be non-back driving. At low ratios, worm gearing can be highly efficient. This, combined with the harmonic drive or strain wave gearing set being used as the primary, provides a high ratio, highly efficient gear system. | 03-24-2016 |
| 20160084367 | BEARING HOLDER, BEARING MECHANISM, AND STRAIN WAVE GEARING DEVICE - In this hollow strain wave gearing unit, a shaft end part of a hollow rotary shaft of a wave generator is located inside a cup-shaped flexible external gear. The shaft end part is supported by a bearing attached to a bearing holder that is fixed to a boss of the flexible external gear. In the bearing holder, an elastic leaf spring part that is displaceable in the axial direction constitutes a part that supports a holder body part that holds the bearing. A preload is applied by the leaf spring part to the bearing in the axial direction. Thus, there is no need to separately arrange a preload application member inside the flexible external gear, and the axial length of the hollow strain wave gearing unit can be shortened. | 03-24-2016 |
| 20160107322 | ANNULAR SPRING AND ROBOT JOINT MECHANISM USING THE SAME - On an inner peripheral surface of an outer peripheral member | 04-21-2016 |
| 20160109014 | STRAIN WAVE GEARING - A hollow-type strain wave gearing unit has a cup-shaped flexible externally-toothed gear, in which one shaft end portion of a hollow rotation shaft of a wave generator is located. The shaft end portion is supported by a bearing mounted on a bearing holder fixed to a boss of the flexible externally-toothed gear. The bearing holder has a retainer holding portion to prevent a retainer of a wave generator bearing from coming off in the axis line direction. There is no need to dispose a retainer holding plate of the wave generator bearing inside the flexible externally-toothed gear, whereby the axial length of the hollow-type strain wave gearing unit can be reduced. | 04-21-2016 |
| 20160160985 | STRAIN WAVE GEARING - A flat strain wave gearing device equipped with: a first internal gear and a second internal gear; a flexible tubular external gear; and an elliptically shaped wave generator. In the direction of a central axis, the center of support of the external teeth by the wave generator is offset, by an offset amount of Δ along the direction of the central axis, with respect to the tooth-width center of the external teeth of the external gear. By setting the offset direction and the offset amount appropriately it is possible to achieve a strain wave gearing device which is suitable in terms of the operating conditions and the mechanical characteristics of the first and second internal gears. | 06-09-2016 |
| 20160178044 | STRAIN WAVE GEARING DEVICE | 06-23-2016 |
| 20160178045 | ROTARY ACTUATOR AND STRAIN WAVE GEARING REDUCTION DRIVE UNIT | 06-23-2016 |
| 20160201783 | FASTENING STRUCTURE FOR FASTENING DRIVEN MEMBER TO STRAIN WAVE GEARING DEVICE UNIT, AND STRAIN WAVE GEARING DEVICE UNIT | 07-14-2016 |
| 20180023678 | WAVE GENERATOR AND STRAIN WAVE GEARING | 01-25-2018 |
