Abstract: Disclosed is a bearing system for a worm engaging with a worm wheel as part of a steering gear, wherein the bearing system comprises at least one bearing with an outer ring, an inner ring, and rolling bodies that are movably accommodated between the outer an inner rings, the bearing being pivotally arranged in a bearing seat for accommodating the outer ring of the bearing, and wherein the inner ring accommodates one of the two shaft ends of the worm in order to seat said shaft end of the worm radially in the housing of the steering gear. For an improved dampening of the worm at least one spring element, which exerts a spring force on a region of the outer ring of the bearing, is provided at the bearing, said spring force supporting a pivotal motion of the worm toward the worm wheel.

Abstract: A helical gear mechanism for a steering system in a motor vehicle comprises a helical pinion which engages with a helical gear and a bearing bushing which accommodates a bearing of the helical pinion. An inner ring of the bearing bushing is connected to an outer ring via a pivot bearing so that a pivoting motion of the helical pinion relative to the helical gear is possible. A pressure piece is disposed between the inner ring and the outer ring of the bearing bushing. The pressure piece is movable in a spring-loaded manner in a section of an annular gap between the inner ring and the outer ring. The inner ring and/or the outer ring are designed in the section so that the annular gap between the inner ring and the outer ring is tapered in the direction in which the pressure piece can be moved in a spring-loaded manner.

Abstract: A drive unit includes an electric motor, a worm shaft coupled to the motor, a worm gear engaging with the worm shaft, and an output shaft connected to the worm gear. The motor has a motor shaft on which the worm shaft is fixed. The worm shaft is made of plastic. The drive unit further includes a metallic sleeve press fitted to the motor shaft. An outer profile of the sleeve is non-circular. A correspondingly shaped receiving hole is formed in the worm shaft to receive the sleeve. The sleeve rotates with the motor shaft and drives the worm shaft.

Abstract: A transmission drive unit (1) comprising a drive motor (2) having an output shaft (3) and an output toothing (4), a threaded spindle (8) having a worm wheel (5) that is in engagement with the output toothing (4), a first housing part (6) produced from plastic, having axial bearing locations (65, 66) and radial bearing locations (63, 64) for supporting the threaded spindle (8), and a second housing part (7) produced from metal, having a through opening (75) for the through passage of the threaded spindle (8), and at least one coupling region (76, 77) for fixing the transmission drive unit (1) to a component.

Abstract: A driving device for a hatch in a vehicle, with a housing tube connected to a base part or to a movable structural component part, a protective tube connected to the movable structural component part or to the base part, a spindle drive having a threaded spindle and a spindle nut arranged on the threaded spindle by which the housing tube and the protective tube are movable axially relative to one another. A rotary drive drives the spindle drive in rotation includes at least one electric motor. The driving device has a safety circuit that causes a braking effect on the rotary drive when the rotary drive is deactivated and when extraneous forces are introduced into the driving device from the outside.

Abstract: A gear housing for a motor is fixed to a motor main body driving a rotary shaft. The gear housing contains a worm wheel and a worm connected to the rotary shaft. Three mounting feet to be fixed to a mounting member are formed at intervals and protrude from a first side surface of the gear housing. A bulge portion bulges outward on the first side surface of the gear housing to expand the internal space. The bulge portion has side walls, which are installed to protrude from the outer side surface constituting the side walls of the bulge portion, and an upper wall, which connects the distal ends in the protruding direction of the side walls. The three mounting feet are connected by the side walls and the upper wall.

Abstract: A folding-top drive has a motor (13) that transmits forces to a first gear (14) and then to a folding-top linkage via a second gear (15). The first gear (14) and a guide (23) are pivoted to a housing (19) and a spring (22) acts on the guide (23). The first gear is guided on the guide (23) so that the guide (23) can be moved automatically with the first gear (14) counter to the force of the spring (22) from a first position where the gears (14, 15) engage to a second position where the gears (14, 15) are disengaged if a force on the first gear exceeds a defined limit. Additionally, the spring (22) can move the guide (12) automatically with the first gear (14) from the second position to the first position if the force on the first gear falls below the defined limit.

Abstract: An electric motor-driven kitchen appliance includes an electric motor and a gear stage. The electric motor includes a motor housing and the gear stage includes a gear case. The motor housing and gear stage are connected to each other by a bayonet lock. The electric motor and the gear stage are provided with the respective bayonet lock parts designed for the kitchen appliance.

Abstract: A longitudinal adjustment mechanism is provided for a seat, with a spindle guide nut (12) that can move on a spindle (10), which can be driven by a worm gear (14) with bearing sleeves (15) on both sides, as well as with a multi-part casing (20, 30) that receives the worm gear (14) and the spindle (10). The casing (20, 30) consists of two casing sections (20, 30) made of plastic, which can be inserted into one another in the axial direction (X) of the spindle (10); each casing section (20, 30) has a plate (21, 31), from which bars (22, 23, 24; 33) jut out on one side and the casing sections (20, 30) are permanently joined to one another. The mechanism provides a compact transmission for longitudinal seat adjustment mechanisms that is easy to assemble.

Abstract: A steering operation force detection device for a steering wheel including a steering wheel rim having a right-side rim section and a left-side rim section. The device includes load cells that detect six component forces of the steering operation force acting on the right-side rim section and the left-side rim section consisting of forces in three axial directions and moments about three axes. The device includes a steering angle detection sensor that detects a steering angle of the steering wheel, and an inertial force component correcting unit that derives an inertial force component acting on the right-side rim section and the left-side rim section due to rotation of the steering wheel, based on an amount of displacement of the steering angle detected by the steering angle detection sensor, and that corrects the component force detected by the load cells to eliminate an effect of the derived inertial force component.

Abstract: A novelty and confection rotating device includes a main housing having an electric motor and a power supply. The electric motor drives a first drive shaft at a first rpm. A rotatable object is connected to this first drive shaft. A gear apparatus is then connected to the first drive shaft and to a second drive shaft. The gear apparatus reduces the rotational speed from the first rpm of the first shaft to a slower, second rpm of the second drive shaft. The difference between the first rpm and second rpm is substantial.

Abstract: A speed reduction device for a power seat includes a worm gear, a helical gear, a casing including a casing body and a casing cover, and a motor fixation device. The motor fixation device includes a first fitting portion provided at a housing, a first engagement portion formed at the first fitting portion, a second fitting portion formed at the casing body and to which the first fitting portion is fitted, a second engagement portion formed at the second fitting portion and arranged to overlap the first engagement portion in a direction perpendicular to the output shaft of the motor in a case where the first fitting portion is fitted to the second fitting portion, and an engagement projection formed at the casing cover and engaging with the first engagement portion and the second engagement portion in a case where the casing cover is tightened to the casing body.

Abstract: The cartridge (22) comprises a body (24), a rotary control plate (28) driving a push plate (30) in a translational movement, elastic means (38) of compressing the push plate (30) towards the control plate (28), and a cage (40) for holding the elastic means (38). The body (24) comprises a projection (42) for attaching the cage (40), collaborating with an attachment orifice (46) formed in an axial tab (44) of the cage (40). The cage (40) is capable of a rotational movement between an attachment position in which the attachment orifice (46) collaborates with the projection (42), and a release position in which the cage (40) is not attached to the body (24). The body (24) comprises a first limit stop (50) that limits the rotation of the cage (40) with which the tab (44) collaborates in the release position. The body (24) comprises a ramp (60), adjacent to the first limit stop (50). In the release position (40), the tab (44) rests radially against the projection (42) and the ramp (60).

Abstract: A fast clutch mechanism for an industrial door is provided. A worm is connected to a motor shaft of the industrial door and meshes with a worm wheel which is rotatably mounted on an output shaft of a transmission box.

Abstract: A floating gearbox includes an outer housing with first and second side walls opposite and spaced apart from each other and an inner gear assembly received within the outer housing. The inner gear assembly comprises an inner housing, a first gear member rotatably received within the inner housing, and a second gear member having an output shaft rotatably supported on the inner housing. A slider plate received within the outer housing has first and second pairs of axially aligned elongate openings, wherein the first and second pairs of elongate openings align with a first axis and a second axis, respectively. Pins on the first sidewall are received in the first pair of elongate openings to allow relative sliding movement between the outer housing and the slider plate along the first axis. The inner housing includes pins received in the second pair of elongate openings, allowing relative sliding movement between the inner housing and the slider plate along the second axis.

Abstract: A worm-gear assembly including a worm screw having at least one groove and a wheel having a plurality of rotatable pins along its periphery for engaging the worm screw. The pins are able to rotate in a direction other than a direction of wheel rotation. At least one raceway is provided for contacting pins that are not engaged with the worm screw during operation of the assembly.

Abstract: A system for rotating an element inside a pressure containing housing. In some embodiments, the mechanism includes a pressure containing housing having an opening through a wall of the housing into an internal chamber in which, in use, the element to be rotated is located, a bushing located within the opening, and a worm gear rotatably mounted in the bushing. The worm gear is offset from the axial center of the bushing such that rotation of the bushing moves the worm gear between an extended position, wherein the thread of the worm gear engages an element in the chamber, and a retracted position, wherein the thread is disengaged from the element in the chamber.

Abstract: A transmission drive unit (10) for adjusting a movable part (58) in a motor vehicle includes a drive element (18), which is capable of being driven by a drive assembly (42), and which is rotatably supported in a support tube (14) via at least one end shield (28). The drive element (18) has a first axial stop (23), which bears against a first axial support surface (21) of the support tube (14), and a second axial stop (35), which rests against a second axial support surface (27) of the end shield (28). The end shield (28) is pressed against the second axial stop (35) of the drive element (18) via a material deformation of the support tube (14).

Abstract: The present invention relates to an adjustment drive, in particular for a vehicle, for driving a component, comprising a drive unit having comprises a first output shaft, wherein an output unit or an intermediate unit, which is disposed between the input unit and the output unit, can be adapted in a modular manner to the first output shaft.

Abstract: A drive and steering unit for driving and steering a load support comprises a steering assembly, a slewing ring engaged with the steering assembly and being rotatable about an axis in response to actuation of the steering assembly, a drive assembly mounted to the slewing ring, and a drive power system coupled to the drive assembly and movable with the slewing ring.

Abstract: A worm wheel (50) is structured integrally with an output shaft (52). The worm wheel (50) includes the output shaft (52), a circular flange (50a) with the output shaft (52) placed as the center, and teeth (50b) formed on the periphery of the flange (50a) and in mesh with a worm. The flange (50a) is provided with a first recessed flange portion (50c) opposite to the side of the output shaft (52), and the bottom (54) of the first recessed flange portion (50c) has a ring-shaped first planar portion (54a).

Abstract: An electric power steering apparatus in which steering assistance is achieved by transmitting a rotary motion of an electric motor for steering assistance to a steering shaft on which a worm wheel is mounted through a worm shaft on which a worm is mounted, wherein the worm shaft is deflectable toward the worm wheel and equipped with a biasing member biasing the worm shaft in the deflective direction thereof, or alternatively, the worm wheel is deflectable toward the worm shaft and equipped with a biasing member biasing the worm wheel in the deflective direction thereof.

Abstract: A drive mechanism (1) of a camera apparatus includes a worm gear (4) to which a rotational driving force of a drive motor (2) is transmitted, a worm wheel (6) around which a helical gear (5) is formed to engage with the worm gear (4), and a support frame (7) which supports the worm wheel (6) rotatably and movably along a rotation axis. A rotational driving force of the worm gear (4) is transmitted to the worm wheel (6) with reduced gear ratio. An externally threaded portion (10) of a shaft portion (8) of the worm wheel (6) is engaged with an internally threaded portion in a supporting hole (14) of the support frame (7), so that the shaft portion (8) moves along the rotation axis when the worm wheel (6) rotates. Consequently, the rotational driving force transmitted to the worm wheel (6) is converted into a linear thrust force along the rotation axis. This makes it possible to provide a camera apparatus which can develop a larger thrust force and adjust an amount of travel more finely.

Abstract: The invention discloses a novel and efficient drive mechanism for use in a variety of applications. This novel mechanism replaces traditional stepper motors or another analogous art with shape memory alloys. The drive mechanism so disclosed provides substantial operational benefits over conventional motors and other such traditional drive mechanisms that would be used in similar applications. The drive mechanism includes a high gear-ratio worm gear and worm drive which further provides precise, controlled movement of an output shaft. In the illustrative use elaborated upon herein, the motor is used to drive a photovoltaic panel so that the panel may remain in appropriate alignment with the sun throughout the day.

Abstract: The invention discloses a novel and efficient drive mechanism for use in a variety of applications. This novel mechanism replaces traditional stepper motors or another analogous art with shape memory alloys. The drive mechanism so disclosed provides substantial operational benefits over conventional motors and other such traditional drive mechanisms that would be used in similar applications. The drive mechanism includes a high gear-ratio worm gear and worm drive which further provides precise, controlled movement of an output shaft. In the illustrative use elaborated upon herein, the motor is used to drive a photovoltaic panel so that the panel may remain in appropriate alignment with the sun throughout the day.

Abstract: A transmission arrangement for an agricultural tiller is disclosed. Conventionally such a transmission has a reduction in the range of 30:1 to 50:1 and is realised by a worm drive gear (4) which meshes with a large driven spur gear (6). There is a large difference in sliding surface speeds which generates substantial heat loading to lubricant failure, This problem is overcome by two cascade connected different gear train arrangements (44A and 44B) formed by two spur gears (29, 30) having a reduction ratio of from 2:1 to 6:1, preferably 4:1, and a worm gear (34) and spur gear (39) having a reduction ratio of from 25:1 to 5:1, preferably 10:1. Both cascade connected gear trains are preferably positioned within a single sealed gear box enclosure (44) to minimise lubricant requirements. The spur gears can be sintered. Helical gears instead of spur gears are also disclosed.

Abstract: Modular pumps comprising universal gearboxes and crank units and associated methods.

Abstract: An electric motor having a rotation shaft includes a motor housing into which the electric motor is accommodated, at least one pair of rolling bearings positioned in the motor housing and rotatably supporting both ends of the rotation shaft, and a displacement restriction member provided inside the motor housing and restricting a displacement of the rolling bearing in an axial direction of the rolling bearing. Each rolling bearing includes an inner race, an outer race, and rolling elements rotatably supported between the inner race and the outer race. The inner race is press fitted without any gaps onto an outer peripheral surface of the rotation shaft, and the outer race is press fitted without any gaps into a bearing attachment portion provided inside the motor housing.

Abstract: A motor assembly includes a motor, a force transmission structure comprising a drive plate and a shaft, and a gear train connecting the motor to the drive plate for transmitting rotation of the motor to the drive plate. The drive plate has a mounting hole with at least three sections interconnected with one another at a common area, the shaft has a toothed portion with at least three teeth fittingly received in the sections of the mounting hole of the drive plate such that the shaft is rotated with the drive plate.

Abstract: This safety system includes: a toothed wheel, connected rotationally with respect to at least one rotating member to be braked, a worm driven rotationally by a motor upon rotation of the rotating member and permanently in mesh with the toothed wheel, a housing forming: a longitudinal wall located on the side of the worm diametrically opposed to the toothed wheel, and extending along the worm at a distance of the latter ranging between 0.001 and 0.01 times the diameter of the worm, and a first end wall integral with the longitudinal wall, located opposite a first longitudinal end of the worm; and energy absorption/dissipation elements interposed between the first end wall and the first longitudinal end of the worm, the worm being slidingly mounted in the housing such that the first longitudinal end of the worm comes closer to the first end wall when the worm slides in the housing.

Abstract: The invention relates to a valve for controlling volumetric flows in a heating and/or cooling system of a motor vehicle, comprising a valve housing (10), from which at least one inlet channel (18) and at least one outlet channel (20, 22) branch, in addition to at least one disc-type valve body (28) for controlling the flow, said body being located in the valve housing so that it can rotate about the axis (31) of a driven shaft (30). According to the invention, the valve body (28) is operatively connected to an electromotive drive (24) by means of a gear system (64). The invention also relates to a heating and/or cooling system (110) of a motor vehicle, comprising a valve (131) of this type.

Abstract: An electromechanical driving device (1) for use in a tailgate of a motor vehicle, with an electric motor (2) for the rotary drive of a spur gear (4) which is accommodated in a gear housing (3) and is operatively connected to a gear arrangement (5) in order to drive an output shaft (19) for a window wiper mechanism, wherein the spur gear (4) is accommodated rotatably in the gear housing (3) by means of a co-rotating spur gear shaft (6), wherein a shaft section (7) of the spur gear shaft (6) extends out of the gear housing (3) on which means for actuating a closing mechanism (8) for closing the tailgate and/or a tailgate window are accommodated. An electromechanical driving device (1) for use in a tailgate of a motor vehicle is therefore provided, said driving device, which is used to selectively actuate a wiper mechanism or a closing mechanism, having a simple design and comprising a gear housing which is designed in accordance with a known construction for driving a wiper mechanism.

Abstract: A transmission device that transmits rotation of a drive cable to a screw shaft is provided. The transmission device includes a worm gear attached to the drive cable, a helical gear attached to the screw shaft, a gear case, a pair of first bearing wall portions, and a pair of second bearing wall portions. The gear case has an opening on one side so as to accommodate the worm gear and the helical gear. The first bearing wall portions are integrally formed with the gear case so as to face each other along the axial direction of the drive cable, and rotatably support both ends of the worm gear. The second bearing wall portions are integrally formed with the gear case so as to face each other along the axial direction of the screw shaft, and rotatably support both ends of the helical gear.

Abstract: A system to control a contact force and a positional relationship between members in operable communication is provided. The system comprises a first member, a second member in operable communication with the first member, a contact force and a positional relationship existing between the first member and the second member. The system further comprises first biasing members being configured to bias and position the first member, the contact force and positional relationship being influenced by a response of the first biasing members to the contact forces between the members in operable communication.

Abstract: A worm reduction gear that reduces a rotation of a worm and transmits the reduced rotation to a worm wheel includes a casing that houses the worm and the worm wheel, wherein the casing includes: a wheel opposing surface that opposes an end surface of the worm wheel via an interval; and a grease holding recessed portion formed in a recessed shape in the wheel opposing surface, and the grease holding recessed portion is provided in a position opposing a worm meshing portion between the worm and the worm wheel.

Abstract: A sectoral reduction gear is arranged between a motor portion and a link mechanism. The sectoral reduction gear rotates in a reciprocating manner in a predetermined angle range on the basis of a forward rotation and a reverse rotation of the motor portion. An outer periphery of the sectoral reduction gear defines an imaginary circle. An inner region of the imaginary circle has an operating range in which the sectoral reduction gear, which rotates in a reciprocating manner, passes, and a non-operating range, in which the sectoral reduction gear does not pass. As seen from an axial direction of an output shaft, a part or the whole of the output shaft is arranged in the non-operating range.

Abstract: A transmission has a movable transmission part movably connected to a fixed transmission part via a shaft to undergo pivotal movement relative to the fixed transmission part about an axis of the shaft. Each of the transmission parts has a hollow cylindrical connecting portion through which the shaft extends. One of the connecting portion of the movable transmission part and the connecting portion of the fixed transmission part is received in the other of the connecting portions with a single seal member disposed therebetween so that an internal space of the fixed transmission part and an internal space of the movable transmission part communicate with each other to thereby form a single hermetically-sealed space for holding therein a lubricating oil.

Abstract: A motor-driven actuator is provided that can prevent generation of hitting sound due to rattling of an output shaft of a motor. The motor-driven actuator is equipped with a motor with an output shaft, worm attached to the output shaft, and rotation member with a worm wheel engaging with the worm inside a case, wherein a bearing member equipped with a regulating face adjacent to a top end of said output shaft and intergrading by biasing force of a spring in a manner said regulating face pushes the top end of said output shaft into the direction of thrust is provided.

Abstract: The joint mechanism includes a first link, a second link, a third link, a shaft supported on the second link to be rotatable about an axis thereof, and movable in an axis direction thereof, a first worm and a second worm mounted on the shaft, a first worm wheel in mesh with the first worm to pivotally move the first link with respect to the second link, and a second worm wheel in mesh with the second worm to pivotally move the third link with respect to the second link. The first link and the third link are pivotally moved in opposite directions to each other by rotating the shaft, and pivotally moved in identical directions to each other by moving the shaft in the axis direction.

Abstract: A geodetic apparatus, in particular tacheometer or theodolite, comprises an optical device for sighting objects, a first support on which the optical device is supported such that the optical device may turn around a first axis, and a first gear unit for transmitting a drive torque on the optical device so as to turn the optical device around the first axis. In thegeodetic apparatus, the first gear unit comprises a worm and a worm gear meshing with each other, wherein the worm has a plate-like body and a spirally extending worm thread is formed on a first side face of the body, and the worm gear has a plurality of teeth evenly distributed along a circle.

Abstract: An electro-mechanical actuator is provided resisting back driving of a gear train in at least one direction. The actuator includes an internal gear train. A clutch is coupled to an output of the gear train and transmits a driving force from the gear train to a clutch output. When a back driving force is applied to the clutch output in at least one direction, the clutch assumes a locked configuration. When the clutch is in a locked configuration the clutch resists rotational movement of the output and back driving of the gear train.

Abstract: A drive mechanism (1) of a camera apparatus includes a worm gear (4) to which a rotational driving force of a drive motor (2) is transmitted, a worm wheel (6) around which a helical gear (5) is formed to engage with the worm gear (4), and a support frame (7) which supports the worm wheel (6) rotatably and movably along a rotation axis. A rotational driving force of the worm gear (4) is transmitted to the worm wheel (6) with reduced gear ratio. An externally threaded portion (10) of a shaft portion (8) of the worm wheel (6) is engaged with an internally threaded portion in a supporting hole (14) of the support frame (7), so that the shaft portion (8) moves along the rotation axis when the worm wheel (6) rotates. Consequently, the rotational driving force transmitted to the worm wheel (6) is converted into a linear thrust force along the rotation axis. This makes it possible to provide a camera apparatus which can develop a larger thrust force and adjust an amount of travel more finely.

Abstract: In a two-axle drive system (10) for holding and moving large sunlight-absorbing, concentrating or reflecting surfaces about an azimuth axis (14) and an elevation axis (15), in the case of which a first gear unit which is driven by a first drive (43) is provided for a rotational movement about the azimuth axis (14), and a second gear unit which is driven by a second drive (45) is provided for a rotational movement about the elevation axis (15), the first gear unit being located in a first housing section (23), and the second gear unit being located in a second housing section (24), the first and second housing sections (23, 24) are immobile relative to each other. High stiffness is obtained as a result.

Abstract: A wiper motor has an output shaft that outputs a to-and-fro rotation to swing a wiper pivotally. A transmission mechanism transmits the rotational force from the motor body. A clutch mechanism lets the transmission mechanism run idle not to transmit the rotational force from the transmission mechanism to the output shaft when the output shaft is subjected to a torque larger than an engagement releasing torque. The engagement releasing torque is specified to a value larger than a maximum wiping torque to which the torque applied by the wiper onto the output shaft is estimated to reach during a normal wiping operation of the wiper.

Abstract: A power seat driving apparatus for a vehicle includes a moving unit and a decelerating mechanism, wherein the decelerating mechanism includes a driving gear to which a driving force is inputted, a driven gear engaged with the driving gear so as to be rotatably driven by the driving gear while decelerating a rotational speed of the driving force transmitted thereto, and a housing, at least one of the driving gear and the driven gear includes a shaft portion and a gear portion including a tooth portion, which engages with a tooth portion of the other one of the driving gear and the driven gear, an annular recessed portion is formed at a stepped portion between the gear portion and the shaft portion, the annular recessed portion, and the housing includes a bearing bore having a bearing surface and an annular protruding portion, which is fitted into the annular recessed portion.

Abstract: A gear arrangement is provided with a built-up for a shaft or pinion to rotate in unison therewith. The gear includes a gear rim and two flanges arranged axially on both sides and fixed them against the gear rim in a positive-locking connection. A hub, over which the respective other parts of the gear are pushed, is formed on at least one of the parts of the gear. The parts of the gear are held together without the use of rivets or screws by a clamped connection including a clamping ring, which is caused to mesh with a groove extending circumferentially on the circumference of the hub or shaft. The clamped connection presses the respective flange outer surface in a spring-mounted manner. Mutually corresponding elevations and depressions on the axial outer surfaces of the gear rim as well as on the axially inner surfaces of the flanges mesh with one another.

Abstract: A work vehicle comprises a frame, a circle gear mounted to the frame to rotate relative thereto, a moldboard coupled to the circle gear to rotate therewith, and a circle drive gearbox comprising gearing, a first worm, and a second worm, the gearing meshing with the circle gear, the first and second worms meshing with the gearing.

Abstract: A worm wheel of a worm drive includes an annular synthetic resin member having tooth portions meshing with a worm shaft and a core having an outside diameter portion joined to an inside diameter portion of the synthetic resin member. The outside diameter portion of the core has first joining tooth portions that protrude outward in a radial direction and are joined to the inside diameter portion of the synthetic resin member. Each of the first joining tooth portions includes a widening portion whose width in a circumferential direction increases toward the outside in the radial direction.

Abstract: A gear train is provided that includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train may further include an absorber configured to provide an axial force on at least one of the plurality of helical pinions. A differential may also be provided including a differential case and a gear train disposed in the differential case. The gear train includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train in the differential may further include a means for providing an axial force on at least one of the plurality of helical pinions.

Abstract: A lift drive comprising: a spiral drive element having an axis of rotation, a rack having teeth sized and shaped to be engaged by the spiral drive element, the rack having a longitudinal axis parallel to the axis of rotation, and a motor to rotate the spiral drive element, wherein upon the spiral drive element-rotating, one of the spiral drive element and the rack moves relative to the other along the longitudinal axis.