Abstract: A shaft coupling mechanism includes a coupling base body coupled to a rotating shaft; a coupling base body coupled to a steering shaft; rotation transmitting members which are disposed between the rotating shaft and the steering shaft through the both coupling base bodies and transmit the rotation of the rotating shaft in an R direction to the steering shaft; an intermediate interposed member disposed between the rotation transmitting members; and a coupling means for coupling the rotation transmitting members to each other.

Abstract: A shaft coupling mechanism 1 for an electric power steering apparatus includes a coupling base body 3 coupled to a rotating shaft 2; a coupling base body 5 coupled to a steering shaft 4 serving as a rotating shaft; and a pair of rotation transmitting members 6 and 7 which are disposed between the rotating shaft 2 and the steering shaft 4 by means of both coupling base bodies 3 and 5 and transmit the rotation of the rotating shaft 2 to the steering shaft 4.

Abstract: A coupling apparatus is provided with a first coupling member, a second coupling member and a damper member. The damper member is arranged between the first coupling member and the second coupling member. At least one of the first coupling member and the second coupling member has a tubular circumferential wall surrounding the outer circumference of the damper member. Accordingly, it is easy to control the diameter of an accommodating hole accommodating the coupling apparatus.

Abstract: A torque dampening compensator for a vehicle including an isolator member disposed between an input member and an output member. The isolator member includes isolator elements disposed between corresponding lugs of the respective input and output members. The lugs of the output member have a draft angle, and the isolator elements have contact faces corresponding to the respective lugs with unequal axial depths to induce a moment on each isolator element that counteracts a thrust load between the input and output members initiated by the draft angle. One isolator element of the isolator member is formed to have a size corresponding to the space provided between adjacent lugs of the input and output members and a shape that is dissimilar from the space. The one isolator element is resiliently deformable into the space.

Abstract: A pair of spherical gears connects the intersecting shafts of a CV-joint. One gear has internal teeth, and the other has external teeth. The gear design is based on pitch circles that are great circles on theoretical pitch spheres that are concentric and have identical radii. The internal teeth are either conically or spherically shaped, while the external tooth faces are cylindrical with tangential flat extensions. The spherical gears are shown on half-shafts. The preferred embodiments have six teeth on each gear, and one preferred embodiment also uses balls for the internal teeth. The gears, while rotating at high speeds under load, can intersect throughout a continuous maximum range of 60° or more in any direction.

Abstract: A shaft coupling mechanism 1 for an electric power steering apparatus includes a coupling base body 3 coupled to a rotating shaft 2; a coupling base body 5 coupled to a steering shaft 4 serving as a rotating shaft; and a pair of rotation transmitting members 6 and 7 which are disposed between the rotating shaft 2 and the steering shaft 4 by means of both coupling base bodies 3 and 5 and transmit the rotation of the rotating shaft 2 to the steering shaft 4.

Abstract: A decoupler assembly for a motor vehicle driveline comprising a decoupler, an input driveably connected to a transmission output shaft and including a first connection that secures the input to the decoupler, and an output driveably connected to a final drive axle then to wheels of the vehicle, including a second connection that secures the output to the decoupler, and a support that provides bending continuity between the input and the output, the support permitting rotation of the input about an axis relative to the output, the decoupler, the first connection and the second connection providing resistance to such rotation.

Abstract: A sleeve assembly includes a sleeve having an inner surface with a first splined portion, and a biasing system biasing a rolling member through the first splined portion. A drive assembly includes the sleeve assembly and a shaft with a second splined portion engageable with the first splined portion of the shaft. When the sleeve assembly is coupled with the shaft to form the drive assembly, the biasing system biases the rolling member into engagement with the second splined portion of the shaft.

Abstract: A coupling joint structure for a boat where the output of an engine can be securely transmitted to a propeller shaft and centrifugal force can be reduced. The structure includes a first coupler on the driving side to an output shaft, a second coupler on the driven side to a propeller shaft, and a damper member interposed between the second coupler on the driven side and the first coupler on the driving side. The first coupler on the driving side and the second coupler on the driven side each include pawl pieces. In a first curved part of each of the pawl pieces on the driving side, the base (wall thickness t1) is made thicker than the end (wall thickness t2). In a second curved part of each of the pawl pieces on the driven side, the base (wall thickness t1) is made thicker than the end (wall thickness t2).

Abstract: An adapter device and a production series of adapter devices for connecting an input shaft, e.g., a motor shaft of a motor, e.g., an electric motor, to a device to be driven, e.g., to a pinion of a gear unit, including an adapter shaft for the rotatably-fixed connection to the device to be driven, an intermediate piece engaged with the adapter shaft, and a sub-component that is engaged with the intermediate piece and is detachably connectable with form-locking to an input shaft, particularly a motor shaft. The sub-component includes a bore hole for accommodating the input shaft in the sub-component, and the sub-component has at least three claws for forming the coupling. The adapter shaft, at its second end, thus at the end facing the intermediate piece, has at least three claws for forming a coupling. The intermediate piece is provided between the claws of the sub-component and the claws of the adapter shaft.

Abstract: a connector structure for a gearbox comprises a transmission rod, a bearing, two connecting members, a buffer, a clamping bush and a rod rack. The buffer is disposed between the two connecting members, the connecting members are received in the clamping bush, and then the clamping bush is installed in the bearing. The connecting members are provided for insertion of a transmission rod and a rod rack, and the buffer prevents the transmission rod from contacting the rod rack and can absorb the vibration generated during the motion transmission cause, and thus the noise is also reduced.

Abstract: A power transmission device prevents vibration in a rotation direction and collision noise, even if a shock absorbing rubber is permanently deformed in a compression direction. Specifically, even if compression forces repeatedly applied to a shock absorbing rubber causes the shock absorbing rubber to be permanently deformed in a compression direction, an elastic member placed between the shock absorbing rubber and each protrusion presses circumferentially the shock absorbing rubber of a pulley and a transmission ring, and therefore, a shock of an abrupt rotation number change caused by rattling between the shock absorbing rubber and the transmission ring may be absorbed by the elastic member, and vibration in a rotation direction and collision noise may be prevented.

Abstract: In order to solve a problem of an electric power steering device of an automobile that the steering feeling is deteriorated by dragging the inactive electric motor if a steering member is operated at a small angle to leave an electric motor inactive while the automobile is running straight, the present invention provides a joint for jointing the rotary shaft of a steering assisting electric motor and a worm shaft of a reduction mechanism, comprising a first member rotating integrally with the rotary shaft; a second member rotating integrally with the worm shaft; and an elastic member for coupling the two members in a torque transmittable manner. The elastic member has a relatively small elastic modulus according to the state that the torsion angle between the first and second members is small. Accordingly, the structure and characteristics thereof lead to a better operationality of the steering member.

Abstract: When a first damper contacts both of a protruding portion of a pulley body and a protruding portion of a center hub, a second damper is disposed as being apart from the protruding portion of the center hub with a gap. Even when the pulley body is rotated in a reverse direction, no reverse torque is thereby transmitted to the center hub as long as the gap exists, or before the second damper contacts the protruding portion of the center hub. As a result, torque fluctuation is sufficiently absorbed. This prevents the following: a reverse torque is transmitted to the center hub; a torque limiter wrongly acts; a fastening part between a shaft and the center hub loosens; or abnormal noise or aversive vibration takes place.

Abstract: A drive assembly 21 is provided for an electric motor 10 having a rotatable shaft 12 including a worm 14. The drive assembly includes an output gear 16 constructed and arranged to mesh with the worm. The output gear includes a plurality of arms 22 extending generally from a periphery of the output gear radially towards a center of the output gear. A driver 18 is operatively associated with the output gear to rotate therewith. The driver includes a plurality of cams 24 near a periphery thereof. The cams are operatively associated with the arms so that when the driver stops rotating while the output gear continues to rotate, each cam engages an associated arm to absorb kinetic energy of the output gear while the motor stalls.

Abstract: A coupling device (11) between a rotor of a synchronous permanent-magnet motor and a working part (17), being advantageously able to ensure an unusual silentness, comprises a driving member (22), being eccentric with respect to the rotor rotation axis and integral with a first motion transmission component, and a driven element (24), being also eccentric with respect to the rotor rotation axis and integral with a second motion transmission component which is kinematically positioned in series with the previous one, said driving (22) and driven (24) members being placed on different non interfering parallel planes inside a tight chamber (18), said driving (22) and driven (24) members being operatively connected through kinematic connection means (25) whose axial dimension interferes with said parallel planes in said chamber (18), said kinematic connection means (25) comprising at least one elastic element (25a) being compressed in said chamber (18) between a bottom wall (19a) and a closing tight cover (19b).

Abstract: A power transmission device for transmitting torque of a driving unit to a driven unit includes a first rotator, a second rotator, and a torque transmission member. The first rotator is to be driven for rotation by the driving unit. The second rotator is coupled to the driven unit. The torque transmission member is made of an elastically deformable material for making contact with the first rotator and the second rotator to transmit torque from the first rotator to the second rotator. An outer periphery of the torque transmission member includes a contact surface for making contact with the rotators and a non-contact surface out of contact with the rotators. The non-contact surface is provided with an oxygen permeance suppression layer made of a material having an oxygen permeability that is less than that of the contact surface.

Abstract: A starting apparatus includes a drive motor and a reduction gear having a planetary gear for starting an engine by the drive motor via the reduction gear. An internal gear of the reduction gear includes a locking projection projecting in an axial direction. A rotation restricting member is formed with a guide groove in which the locking projection is loosely received and guided in a circumferential direction. A shock absorbing member is held in the guide groove in a state of being elastically in close contact with the locking projection in the circumferential direction. Thus, shock load to the internal gear is alleviated from the start.

Abstract: An improved device for transmitting motion between the rotor of a synchronous permanent magnet motor and a working part. The device includes a first coupling, provided with a driving element, which is eccentric with respect to the rotation axis of the rotor, at a rotor shaft end. A second coupling cooperates in a kinematic series with the first coupling and is provided with a driven element, that is eccentric with respect to the rotation axis of the rotor and rigidly formed with said working part. The driving and driven elements lie in distinct and non-interfering axial positions. The device further includes two elastic elements, which are set angularly after each other, one of them interfering with the driving element of the first coupling and the other one interfering with the driven element of the second coupling.

Abstract: A spider shaft coupling transmitting torque via deformable legs of a spider-like flexible element in which the spider is designed as a captive assembly of a holding base (internal or external) and deformable legs comprising thin-walled solid or wound shells.

Abstract: A torque transmission apparatus absorbs torque fluctuations (vibrations) while limiting the size of the outside dimensions of a pulley. Elastomeric dampers and pendulum type vibration-absorbing mechanisms are located between an outer tube and an inner tube of a pulley body.

Abstract: An elastic coupling having two coupling sections is provided. A first coupling section has a plurality of spaced-apart pockets disposed along an arc. Elastomeric elements are positively held in the pockets, and the second coupling section has projections that extend into the first coupling section respectively between two adjacent elastomeric elements. The elastomeric elements comprise two regions having different properties. The first region, which extends radially and is held in the pockets of the first coupling section via its ends, is more inherently stable than is the second region for the transmission of a peripheral force. The second region, which respectively faces one of the projections of the second coupling section, is more yielding than is the first region such that deformations can be introduced into the second region with the effect of a slight restoring force.

Abstract: To ensure that fitting a coupler rubber in a reverse condition will be prevented, and to ensure that the fitting direction of the coupler rubber can be visually checked even after the fitting. A driving-side coupler is provided on an end of an output shaft of an engine. A driven-side coupler is provided on an end of a drive shaft. A coupler rubber is disposed between the couplers. At least a portion of the coupler rubber is exposed between the couplers, and the exposed portion is provided with a mark indicating the fitting direction of the coupler rubber.

Abstract: A device for effecting an elastic coupling is provided, comprising a first moving coupling element associable to a second movable coupling element, the first moving element transmitting rotational movement to the second movable element by compression of an elastic element, the coupling device defining a vent for the elastic element. Such an elastic coupling device thereby allows an increase in capacity of torque transmitted with respect to a similar coupling device lacking a vent, thereby maintaining the same useful life and reliability, and providing capital economy through utilization thereof.

Abstract: A flexible coupling having a generally cylindrical flexible element with a plurality of generally radial element teeth that are engaged by a plurality of generally radial hub teeth that penetrate generally radial element tooth faces on the element teeth, with the hub teeth arranged around generally radial hub faces of generally cylindrical shaft hubs and means for reducing axial loading of drive shafts attached to the hubs under load.

Abstract: An adapter device and a production series of adapter devices for connecting an input shaft, particularly a motor shaft of a motor, especially an electric motor, to a device to be driven, particularly to a pinion of a gear unit, including

Abstract: A flexible coupling system to connect two substantially axially aligned shafts, comprises coupling members mountable on the ends of each of the shafts with each coupling member having a drive face for engagement with the opposed drive face of the other coupling member to provide a torque transmitting connection. Each coupling member has a tubular extension extending away from the drive face with an inner axial surface engageable over the shaft and a distal end. A locking ring engageable with the distal end of each coupling member is provided. Each distal end and each locking ring are formed with one of an axially extending annular eccentric projection and an axially extending eccentric shoulder. The shoulder and projection are rotatable to interengage and lock with each other in an interference fit to lock the coupling members on the shaft.

Abstract: To provide a power transmission mechanism into which a driven flange is assembled, the power transmission mechanism producing no metal contact noises. A driven flange is divided into an engine side flange and a wheel side flange. The engine side flange may be formed of a steel forging and the wheel side flange may be formed of an aluminum forging. The engine side flange is spline-fitted in a final gear integrally rotated with a bevel gear. Furthermore, openings are formed in the wheel side flange at equal intervals and blocks having a threaded hole therein are pressed into the openings. In addition, the engine side flange, the wheel side flange, and the blocks are integrally connected together with bolts.

Abstract: A power transmission device includes a driving rotary member, a driven rotary member fixed to one end of a rotary shaft of a driven device, a first intermediate friction member disposed between the driving rotary member and the driven rotary member, and a spring for pressing the driving rotary member against the first intermediate friction member, thereby pressing the first intermediate friction member against the driven rotary member. The driving rotary member is provided with at least one first concave segment, the driven rotary member is provided with at least one convex segment and at least one second concave segment, and the first intermediate friction member is provided with at least one lug. The at least one lug is adapted to engage the at least one first concave segment and to simultaneously abut the at least one convex segment.

Abstract: In a flexible coupling generally comprising a driving and a driven hub, each having axially extending teeth, and a slotted cylindrical elastomeric element positioned around the hub teeth so as to transmit torque from a driving hub teeth to the driven hub teeth, the bottom of the slots of the elastomeric element are formed with compound curves so as to reduce stress on the elastomeric element and also provide a relief area for the outer periphery of the hub teeth to prevent engagement of the sharp edges of the hub teeth with the elastomeric element. This provides greater flexibility and improved life for the elastomeric element. Furthermore, the hub teeth are tapered in the axial direction so as to provide for axial insertion of the hub teeth into the elastomeric element and furthermore provide a curved surface on the teeth to reduce the biting effect of the leading edges of the hub teeth on the elastomeric element.

Abstract: A compact cam phaser has a flexible spline deformed into a nonround shape and engaging a mating ring gear or circular member at angularly spaced locations for transferring camshaft drive torque between them. The spline has projecting lobes with teeth or friction surfaces which engage like surfaces formed on the mating gear or member. The spline and ring gear have a differential length or number of teeth. The phaser includes a plurality of angularly spaced radial piezo actuators, which expand and contract to cause the projecting lobes (but not the flexible spline itself) to travel around the circular ring gear in rotating waves. Thus, each point of the flexible spline is moved sequentially into and out of contact with the ring gear as the contact points (lobes) rotate in waves. Since the number of spline teeth differs from the ring gear, one revolution of the waves causes the spline to move relative to the ring gear a number of teeth equal to the differential.

Abstract: A device for subjecting a shaft to a combined simple rotation and alternating rotation of limited extent about its own axis, the device including two supporting plates which rotate with the shaft coupled to a vibration generator and, between the plates, a part of a gear system which rotates freely with respect to the shaft and is associated with rotation actuation motor. Two first slotted holes are formed in each one of the plates so that they are diametrically opposite with respect to the shaft, the first slotted holes being arranged, upon assembly, at second slotted holes formed in the gear system, elastic compression springs being rigidly coupled between the first and the second slotted holes.

Abstract: A coupler is provided which responds to relative rotation of a driving and a driven shaft with variable rates of stiffness. As the two shafts experience slight degrees of relative rotation, such as at idle speed, the elastically deformable member of the coupler responds in a relatively soft manner with a slight degree of stiffness. As relative rotation increases because of the transmission of higher torque between the driving and driven shafts, the elastically deformable member responds with a stiffer reaction. The elastically deformable member also reacts in a similar manner with differing rates of stiffness to misalignment of the driving and driven shafts.

Abstract: A motion impartation device having a driving portion; a driven portion engaged with the driving portion such that at least one gap separates the driving portion from the driven portion; and a structural element disposed in each gap such that a first compressive force is transferred from the driven portion to the driving portion and a tensile force is transferred from the driven portion to the driving portion. Each structural element including a compressive and a tensile structural element. The compressive structural element having a first enclosure defined by first walls surrounding a first cavity. The tensile structural element having a second enclosure defined by second walls surrounding a second cavity, a first non-compressible material disposed in the first cavity, and a second non-compressible material disposed in the second cavity.

Abstract: A drive assembly couples a driving mechanism, e.g., an engine, and a driven mechanism, e.g., a generator, to one another. The assembly includes a transmission member having a plurality of inwardly projecting fingers and a coupling having a plurality of outwardly directed projections interdigitated with the fingers. The projections include first and second projections which define a notch between them. A finger extends into the notch, thereby forming first and second pockets between the finger and the first and second projections, respectively. In the improvement, the first and second resilient devices are received in the first and second pockets, respectively. Each resilient device includes at least one spur projecting from it to prevent substantial rotation of the device in its pocket. In a more specific embodiment, alternating pairs of resilient devices are made, respectively, of natural rubber for good shock absorption and Buna N for resisting the harmful effects of oil.

Abstract: An assembly including mutually engaged spline teeth includes a rubber isolator, retained in position between an external splined surface, and an internal splined surface is supported against movement and is adapted to contact the lateral face of an adjacent spline tooth so that the isolator is compressed due to rotation of one of the components relative to the other over a range of movement. Then the metal surfaces of the teeth on the first and second components are in mutually contact. In one form, the isolator is retained by an interference fit on a post located within an intervening space between teeth.

Abstract: A rotary blower (26) including a pair of shafts (70,56) on which are mounted a pair of rotors (28,29), input to the first shaft (70) being by way of an input pulley (76;108;201). The first shaft (70) has a forward terminal portion (72) extending forwardly of a first timing gear (60) to a location disposed within the input pulley. A torsion damping means is associated with the input pulley (76;108;201) and includes a resilient means (94;124;213) which resists relative rotation between the input pulley and the terminal portion (72) of the first shaft. The torsion damper also includes means (88,90,92;118,122;207,211) for limiting the relative rotation of the input pulley and the first shaft. The disclosed arrangement provides a more compact, less expensive input portion of the blower which eliminates the need for the conventional "third shaft" and its associated bearings.

Abstract: A speed reducer is provided with a shock absorbing rubber damper disposed in a power transmission path from a first wheel to which a driving force of a motor is input to a second wheel from which the power is output. First projecting portions 3e and auxiliary projecting portions 3f are provided on a first wheel. Second projecting portions 5b are provided on a second wheel 5. The projecting portions are disposed together in intervals T defined between segmented rubber dampers 6. Receiver plates 7, 8 are attached to the end surfaces 6a, 6b of the rubber dampers 6 and serve as load bearing surfaces confronting the projections 3e, 3f and 5b so as to approximately distribute the loads over the entire end surfaces. Two receiver plates 7, 8 disposed across the end surfaces 6a, 6b can be arranged as an integral receiver plate unit U. With this arrangement, a shock absorbing capability is enhanced as well as the number of parts can be reduced.

Abstract: A drive assembly coupler to transfer torque from a motor shaft. The coupler includes a body having a first end, a second opposed end, and an axial opening through the body extending between the ends. A first pair of opposed channels is provided in the body, each channel parallel to the other and parallel to the opening. A second pair of opposed channels is provided in the body, each channel parallel to the other and parallel to the opening. A first U-shaped insert has a threaded opening receivable in the first end and has a first pair of extending legs receivable in the first channels. A second U-shaped insert has a threaded opening receivable in the second end and has a second pair of extending legs receivable in the second channels.

Abstract: The device has springs arranged diametrically opposite with respect to a shaft that is coupled to a generator of torsional vibrations. The springs are rigidly coupled between first supporting elements that rotate with the shaft and second supporting elements that are rigidly coupled to a gear system that is freely mounted on the shaft. The gear system is coupled to a motor for actuating rotation of the shaft.

Abstract: A jet propelled watercraft has a coupling assembly to couple an engine crankshaft to a jet pump impeller shaft. The coupling assembly can accommodate substantial engine crankshaft vibrations, yet effectively isolates the jet pump impeller shaft from transverse movement. The coupling assembly includes an engine crankshaft coupling head, an intermediate coupler, an impeller shaft coupling head, and two elastomeric isolators positioned between each of the coupling heads and the intermediate coupler. The intermediate coupler is supported exclusively by the elastomeric isolators, and is allowed to tilt transverse to the rotational axis of the intermediate coupler to accommodate engine crankshaft displacement. The coupling assembly is practical for personal watercraft because, although elastomeric isolators wear or shred quickly in the presence of transverse misalignment, elastomeric isolators provide significant durability in the presence of a reasonable amount of angular displacement.

Abstract: A rotation transmission buffer apparatus for transmitting the turning force of an input rotary body to an output rotary body through an elastic body provided therebetween. The input rotary body is provided with a plurality of engaging spaces, and the elastic body is provided with a plurality of engaging grooves and a plurality of projecting portions which are respectively fitted into the plurality of engaging spaces of the input rotary body. The output rotary body is provided with a plurality of protruding pieces which are respectively fitted into the plurality of engaging grooves of the elastic body.

Abstract: A torque transmission unit comprises a worm wheel engaged with a worm of an armature of a motor, a gear casing housing therein the worm wheel, and an output disk operationally engaged at one end face thereof with the worm wheel through a damper. The output disk is provided on the one end face thereof with a hollow projection integrated with the output disk. The projection extends through an opening of the gear casing, from which a torque of the motor is taken out.

Abstract: A low backlash direct drive actuator is described which comprises a motor such as a stepper motor having at least 200 steps per revolution; a two part hub assembly comprising a drive hub coaxially attached to the shaft of the motor and having a plurality of drive pins; a driven hub having a plurality of bores in one end thereof in alignment with the drive pins in the drive hub and a threaded shaft coaxially mounted in an opposite end of the driven hub; and a housing having a central bore therein into which are fitted the drive hub and driven hub, the housing having a motor mount on one end thereof to which is mounted the stepper motor, and a closed end portion with a threaded opening therein coaxial with the central bore in the housing and receiving therein the threaded shaft attached to the driven hub.

Abstract: To simplify the design and assembly of an adjustment drive with a gear wheel mounted to rotate in a gear housing with a gear housing lid and with a driver provided with a power take-off element (e.g., a pinion) being in a drive connection with it on the output side, directly or indirectly, present invention provides that the driver is simultaneously structured as a power take-off shaft and is mounted to rotate with at least one bearing region in the gear housing or in the gear housing lid, respectively. In a further embodiment, the gear wheel is a one-piece component of the driver and is preferably placed into a drive connection with it via spring web type spokes in the form of tangential stop damping.

Abstract: A speed reducing device employs dampers which are provided for power transmission from a worm wheel engaged with a worm gear to an output shaft of the device so as to absorb shocks. The device does not require a metallic plate to which the dampers are adhered nor a bearing which specifically supports the output shaft. A first wheel is engaged with the worm gear and has protrusions on its plate surface facing a second wheel. The second wheel is rigidly connected to the output shaft and has protrusions on its plate surface facing the first wheel. The protrusions of the first and second wheels take complementary positions, in which each protrusion of one wheel is apart from the adjacent protrusion of the other wheel a predetermined distance with respect to the rotational direction. The dampers are provided between neighboring protrusions of the first and second wheels so that the dampers are pressed and contracted to elastically transmit power from the first wheel to the second wheel.

Abstract: A torsional vibration elastomeric damper coupling arrangement for a manual transmission countershaft. The coupling includes a first driven gear journalled on the countershaft and in constant mesh with the input shaft gear. A second driven gear is fixed on the countershaft and is in constant mesh with a speed gear journalled on the main shaft. The first and second driven gears each have a set of longitudinally extending axial teeth interposed to define predetermined clearances therebetween. An elastomeric damper sleeve surrounds the interposed teeth to isolate the driven gears. The elastomeric material inhibits the transfer of torsional vibration from the input shaft to the countershaft. Thus, the coupling isolates all the drive shaft speed gears, in mesh with the countershaft drive gears, from any input shaft torsional vibration.

Abstract: A damper device for a motor includes a worm wheel meshingly engaged with a worm on a motor shaft. The worm wheel has a tubular flange in which a plurality of recesses are formed. A rotatable torque transmission disk is connected to an output shaft for rotation therewith. The torque transmission disk has a plurality of radial protrusions formed on an outer periphery thereof. A resilient damper/coupling member is interposed between the worm wheel and the torque transmission disk so as to transmit a torque of the motor to the output shaft. The protrusions of the torque transmission disk are loosely fitted respectively in the recesses in the flange of the worm wheel. With this construction, when a large load is applied to the output shaft, the protrusions are abutted respectively against the edges of the recesses, thereby preventing an undue deformation or twisting of the damper/coupling member.

Abstract: A geared motor comprising a rotating axle rotating in accordance with the rotation of a rotor, a gear rotating axle for outputting from the rotating axle speed reduced rotation, and a flexible coupling consisting of a first coupling disposed on the rotating axle of the rotor and rotating together with the rotating axle and the rotor, a second coupling disposed on the gear rotating axle, and rotating together with the gear rotating axle, a rubber damper disposed between the first coupling and the second coupling for transmitting the rotation of the first coupling to the second coupling, a thrust-force bracing member disposed between the rotating axle of the rotor and the gear rotating axle and in contact with the rotating axle and the gear rotating axle, for transmitting thrust force from one of the rotating axle of the rotor and the gear rotating axle to the other of the two arranged so that even if thrust force acts on the rotating axle of the rotor or on the gear rotating axle, the thrust force does not act

Abstract: In order to reduce noise attendant with conventional equipment, an electric generator for a vehicle is attached to the vehicle engine by a stay arrangement that places the point of connection between the generator stator and the engine significantly radially outwardly from the stator. The stay apparatus, further, cooperatively mounts a lid plate for sealing the coupling chamber which houses the elastic coupling connected to the generator rotor shaft. A gap provided between the facing surfaces of the lid plate and the coupling chamber is filled by an elastic seal for improving the noise-damping efficiency of the apparatus. The elastic coupler of the generator and drive shafts has alternating radial fins whose interspaces are filled with resilient material.