Abstract: A torque transmission joint transmits torque between a drive shaft and a driven shaft. The torque transmission joint includes: a coupling including: a first concave-convex portion which is provided on one of inner and outer circumferential surfaces thereof and is engaged with a drive-side concave-convex portion of the drive shaft with a gap; and a second concave-convex portion which is provided on the other of the inner and outer circumferential surfaces and is engaged with a driven-side concave-convex portion of the driven shaft with a gap; a drive-side elastic member which is provided between the drive shaft and the coupling to be torque-transmittable; and a driven-side elastic member which is provided between the coupling and the driven shaft to be torque-transmittable. A concave-convex shape of the first concave-convex portion and a concave-convex shape of the second concave-convex portion are different from each other.

Abstract: A torsional vibration absorber comprising a hub for attachment to a shaft and an oscillating ring. The oscillating ring is disposed concentrically with the hub and, together with the hub, delimits an annular gap. The hub and the oscillating ring are connected via connecting members made from an elastomeric material. The connecting members are offset in a circumferential direction and disposed in the annular gap. The connecting members include a bead-shaped middle portion, which is connected to the oscillating ring and to the hub via thin webs.

Abstract: A shaft coupler that couples a worm shaft and an output shaft of an electric motor in an electric power steering device includes a joint on a motor side that is connected to the output shaft, a joint on a worm side that is connected to the worm shaft, and a coupling that is provided between the joints and that is for transmitting rotational torque of the electric motor to the worm shaft. The joint on the motor side and the joint on the worm side, each having a plurality of protrusion parts that extend in an axial direction, are arranged so that the protrusion parts are aligned alternately in a circumferential direction. The coupling is formed by a plurality of caps that are fitted to the protrusion parts of the joint on the motor side or the joint on the worm side.

Abstract: A device (10) for damping torsion between a clutch element (16) and a transmission shaft, comprising: an input washer (12A, 12B) that is rotationally integral with the clutch element (16); two output webs (18A, 18B) that are rotationally integral with the transmission shaft by means of a central hub (20); a pair of circumferentially acting elastic members (42) that are interposed circumferentially in series between the input washer (12A, 12B) and the output web (18A, 18B); a phase washer (44) that is interposed circumferentially between the two elastic members (42) of said pair.

Abstract: A non-split, unitary insert for a shear-type flexible shaft coupling is provided. The insert has an inner ring and an outer ring that is non-removably joined to and encircles the inner ring. The inner ring is constructed of a material having a durometer that is less than the durometer of the material forming the outer ring. In embodiments both of these materials are polyurethane. This arrangement permits slots of the inner ring to shear while retaining the integrity of insert by preventing destruction of the outer ring during shear of the slots. The outer ring may include one or more radial tabs that are received by corresponding one or more radial notches in the inner ring to prevent separation of the rings under load.

Abstract: The invention relates to a compensating coupling for transmitting torques, comprising a sleeve-shaped main body (1) that extends in a longitudinal direction (z), which sleeve-shaped main body has several transverse slits (2) distributed over the circumference and in the longitudinal direction (z), wherein the transverse slits (2) each extend in the radial direction from an outer surface to an inner surface of the sleeve-shaped main body (1). According to the invention, the transverse slits (2) are filled with an elastomer (4).

Abstract: It is intended to provide a kneading extruder which makes it possible to prevent breakage due to resonance regardless of the rotating speed of kneading screws.

Abstract: In a safety coupling for a motor vehicle for transmitting a driving torque between a machine shaft of an electric machine and a wheel drive shaft driving at least one wheel of a vehicle, torque is transmitted during disturbance free normal operation between the machine shaft and the wheel drive shaft via a releasable positive coupling. If a torque exceeding a limit value occurs, the releasable positive coupling is disengaged, and therefore an elastic coupling device at least briefly takes over the transmission of torque.

Abstract: The invention relates to a method for the production of a coupling segment (11) of a segmented, elastic coupling (10), wherein an elastomer body (2) is disposed between two metallic connection flanges (3, 4), and the elastomer body (2) is connected with the two connection flanges (3, 4) in material-fit manner, by means of vulcanization, to form a coupling body (1). In order to be able to produce such a segmented, elastic coupling (10) at the lowest possible costs, it is proposed, with the invention, that the coupling segment (11) is cut out from the coupling body (1) by means of water jet cutting, wherein the water jet cuts the elastomer body (2) and, at the same time, at least one of the two connection flanges (3, 4).

Abstract: The present disclosure relates to a vibration damper, in particular for a drive train of a motor vehicle, having a support body which is rotatable about an axis of rotation M, a damper mass which is coaxial with respect to the support body and which is arranged with a radial spacing to the support body, and a plurality of spring elements which connect the support body and the damper mass to one another. It is provided that the support body has axial travel limiting means which extend on the support body in the radial direction relative to the damper mass so as to limit a displacement of the damper mass in the axial direction relative to the support body.

Abstract: A torque coupling for a rotor head of a rotary-wing aircraft is configured for rotation with a mast and for causing rotation of an attached yoke. The coupling has trunnions that rotate with the mast and extend generally radially. Pad-bearing assemblies each have a central member coupled to one of the trunnions with a laminated spherical bearing and have laminated pad bearings affixed to opposing sides of the central member. The laminated bearings have alternating rigid and elastomeric layers. A bearing mount is affixed to each pad bearing and is connected to a yoke for rotating the yoke with the mast. The pad-bearing assemblies allow for relative motion between each central member and the associated trunnion and between each central member and the bearing mounts through elastic shear deformation, and this allows for gimballing of the attached yoke relative to the mast.

Abstract: The present invention relates to a rotary elastic coupling fitted with an inner ring and with an outer ring surrounding the inner ring around the periphery by forming an annular slit. An elastomer is provided in the annular slit, which is vulcanised or glued to the inner ring and to the outer ring and fills up the annular slit substantially or completely. The annular slit is meander-shaped around the periphery of the coupling so that radially outward protrusions of the inner ring undercut radially inward protrusions of the outer ring. Around the periphery of the coupling, a relief opening is provided in the elastomer on both sides of the protrusions of the inner ring and on both sides of the protrusions of the outer ring.

Abstract: The invention relates to a Kelly bar arrangement having an inner bar and at least one outer bar, whereby the inner bar is arranged with respect to the at least one outer bar in an axially movable but rotationally fixed manner, and a spring means which is arranged in a lower area of the inner bar for cushioning an axial movement of the inner bar with respect to the at least one outer bar. In accordance with the invention provision is made for the spring means to be designed as an elastomer spring.

Abstract: A vehicle driveline with a transmission having at least one motor/generator and an output shaft is provided. A driveshaft assembly is rotatably connected to the output shaft. The driveshaft assembly includes an isolator located between the transmission and at least a portion of the driveshaft assembly to electrically isolate the driveshaft assembly from the transmission.

Abstract: A hand-held motorized household cleaning apparatus that includes a housing, a battery located in the housing, a motor located in the housing and connected to the battery, an output drive shaft connected to the motor, a cleaning attachment coupled for movement with the output drive shaft and a liquid delivery system with a pressurized reservoir. A flexible adapter is also provided.

Abstract: A device for starting an internal combustion engine for hand-held tools, chainsaws, lawnmowers, trimmers and the like, includes a rotatable pulling medium roller which can be brought into functional connection with the crankshaft of the internal combustion engine in order to bring about a rotation of the crankshaft. The starting device has a simply configured functional connection between the crankshaft and the pulling medium roller and effectively reduces the force peaks reaching the pulling medium roller. To accomplish this, a deformation body having elastic deformation behaviour is arranged in the functional connection between the pulling medium roller and the crankshaft. The deformation body compensates for leading or lagging of the crankshaft with respect to the pulling medium roller.

Abstract: A shaft coupling has an input element adapted to be rotationally driven about an axis, an output element rotatable about the axis adjacent and limitedly relative to the input element, and an intermediate element rotatable about the axis adjacent and limitedly relative to both the input element and the output element. A first coupling assembly with progressive resistance to torque is fixed between one of the input and output elements and the intermediate element. A second coupling assembly with linear resistance to torque is fixed between the other of the input and output elements and the intermediate element such that torque is transmitted between the input and output elements through the coupling elements in series with each other in a single stage.

Abstract: A universal joint couples a drive shaft and a driven shaft and comprises two joint yokes, each joint yoke having bearing elements at axially opposite yoke arms. The two joint yokes are arranged radially at an angle of 90° in relation to each other to form an internal space. The universal joint also comprises fastening elements having an L-shaped cross section and pivotable in the axially opposite yoke arms of one of the joint yokes, a pin bearer pivotable in the other joint yoke, and an elastic coupling element connecting the fastening elements and the pin bearer.

Abstract: The invention relates to an elastic joint member (10) with at least one set of loops (12) and at least two bushes (14), which extend transversely through the set of loops (12), collars (16), which are fastened to a respective bush end (22) in order to axially support the set of loops (12) on the relevant bush (14), and an elastomeric envelope (18), in which the set of loops (12) and the bushes (14) are embedded at least in part. Also according to the invention, the areas of the bushes (14) which are left free by the collars (16) and embedded in the envelope (18) are smooth, and the collars (16) are locked onto the associated bush (14) with a clearance which is such that the bush is rotatable within the collars, while these are connected in a fixed manner to the envelope (18).

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 coupling sleeve for use in a sleeve-type, flexible, shaft-coupling device, comprising: a generally annular body portion having an inner periphery and an outer periphery; and one or more axially extending, polymeric or elastomeric teeth on at least one of said periphery of said body portion; wherein said body portion comprises a rigid support band having a rigid, axially extending fin protruding radially into at least one of said one or more teeth. The coupling sleeve has a cross sectional area comprising a polymeric portion and a rigid band portion, and said rigid band portion occupies the minor portion of said cross section relative to said polymeric portion. Torque applied to the teeth of the coupling sleeve during use is resisted by the fins and the tooth material is thus placed in compression. Another aspect of the invention is to provide a coupling device comprising the coupling sleeve and at least one end piece coupled to said sleeve.

Abstract: An elastic shaft coupling with high torsional elasticity having segments formed by steel sheet segment plates vulcanized to an elastomeric body and in which blocking elements bridge the radial gaps of the segments of each coupling half so as to brace the plate segments against axial deformation. All of the elastomeric bodies are vulcanized to the segments or to rings from which segments are divided in a common vulcanization procedure.

Abstract: The invention is based on an axial fan with a hub region (4, 27) for connecting the axial fan with a driven shaft (20) of an electrical drive (21), whereby the axial fan is statically balanced by means of a balancing weight (26). A flexurally soft connection is formed in the hub region (4, 27) between the axial fan (1) and the driven shaft (20) of an electrical drive (21).

Abstract: A torsionally-compliant universal joint includes a cruciform having trunnion posts partially encapsulated within a body. The body is formed from an elastomeric material. A bearing cup assembly is rotatably coupled to one of the trunnion posts. The bearing cup assembly is coupled to a yoke.

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: 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: A shaft, in particular a drive shaft, for transferring torques, includes a basic member made of an elastic first material, and connecting pieces shaped at their ends for being received by the basic member and prevented by positive engagement from rotating and displacing axially relative to the basic member. The connecting pieces are made of a second material which is inelastic or less-elastic than the first material or. The first and second materials are plastics which are crosslinked with one another at interfaces of the basic member and the connecting parts. The shaft is reliably functional while having a compact design.

Abstract: An elastomeric joint (100) that comprises a wing plate (102) including a base plate (104) generally extending along a first axis and generally perpendicular to a second axis is provided. The wing plate further includes a mutually opposite first and second bushing-receiving bores (120) co-axially aligned relative to a third axis perpendicular to said first and second axes. A plurality of elastomeric shear pads (106) is affixed on mutually opposite sides of the base plate. The plurality of shear pads is stacked generally perpendicular to the second axis. Top and bottom elastomeric bushings (122) are received by said respective bushing-receiving bores. Each elastomeric bushing comprises a plurality of torsion pads (124) and includes a respective pin-receiving bore(128).

Abstract: A drive connector for elastomerically coupling a drive shaft to a driven shaft. An elastomeric coupling includes openings on opposite ends that are generally “D”-shaped forming an interference fit with correspondingly shaped ends of the drive shaft and the driven shaft. A web extends transversely within the interior of the elastomeric coupling, limiting the distance that the drive shaft and driven shaft are inserted within the openings of the coupling. The coupling includes a rib that runs longitudinally along its outer length. A sleeve having a groove corresponding in size and shape to the rib is slipped over the coupling and is connected to the driven shaft. The sleeve includes a rigid interior element that is overmolded with an elastomeric material. A cam bearing is fitted over a cam surface on the sleeve and provides a force in one direction, urging a plunger to displace an elastomeric membrane in a pumping cassette, forcing medicinal fluid to flow through the pumping cassette.

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: A multi-function apparatus for controlling various functions of a liftgate of an automotive vehicle. The apparatus includes an elastomeric member which is operably disposed in connection with a gear which imparts a driving force to a drive shaft of a window wiper member. The elastomeric member, in one embodiment, is a coiled spring which allows movement between the drive shaft and the gear driving the drive shaft in the event the wiper becomes frozen to the window of the vehicle or otherwise immovable. In this manner various other functions can be carried out by the apparatus regardless if the wiper becomes temporarily immobilized.

Abstract: A hole is formed in a damper rubber, where by when a compressive load is small, pillar portions undergo a flexural deformation so as to result in buckling deformation. On the other hand, when the compressive load becomes large, the hole collapses and the damper rubber under goes a compressive deformation so as to collapse itself. Thus, since the damper rubber has a non-linear characteristic such that an elastic modulus thereof at an amount of deformation exceeding a predetermined amount is larger than that at an amount of deformation less than the predetermined amount, the transmission of a large torque can be implemented while absorbing a torque fluctuation sufficiently.

Abstract: The invention relates to a shaft coupling (1) comprising at least one elastomer transmission element (2). In order to meet continuously increasing requirements in terms of dynamic load capacity and long service life, and with a view to providing special protection against oxidation-caused aging in hostile environments such as high temperatures, the outer surface of the transmission element (2) is provided at least partially with an anti-aging, airtight covering (3).

Abstract: A torsionally elastic coupling (1) is equipped with a plurality of radially deflectable springs (4) distributed over the periphery for transmission of torque between a hub (2) and an outer crown (3). In order to achieve simple torsionally elastic coupling with axial, radial and angular displacement capacity and having a vibration-damping effect, the springs (4) comprise a fiber-reinforced body (9) bent at least once about an axis of curvature (K) parallel to the axis of rotation (D) of the coupling and connecting elements (11, 12) for attaching the hub or outer crown, in which at least one longitudinally extending elastomer layer (13) is embedded between the connecting elements (11, 12) in the fiber-reinforced body (9).

Abstract: Torque transmitting, molded flexible shaft assemblies having two rigid, tubular, shell-like sections that are filled and linked together by a flexible material. The two sections are placed in a mold such that they are separated by an elongated cavity. A flexible-when-hardened moldable material such as polyurethane then fills the mold such that the two sections and the elongated cavity are filled by the moldable material.

Abstract: A method and structure for coupling to a step motor shaft is characterized by providing a predetermined back-lash distance defined between the step motor shaft and a key, thereby to instantly reach the desired speed for driving a load. Accordingly, a shaft coupling device is provided to connect to a rotatable load. The shaft coupling device has a key which maintains a back-lash distance defined between a step motor shaft and the key. Eventually, when the step motor shaft is not driving the load, they are separated. When the step motor shaft is driven by the step motor, it self-spins in a first direction and travels through a distance so as to form a predetermined back-lash distance between the key. As soon as the back-lash distance is formed, the step motor shaft reverses its rotation direction and then starts to travel through the predetermined back-lash distance to drive the load. The speed of the step motor shaft soon increases as it rotates in a second direction and approaches the load.

Abstract: An electro-hydraulic gear pump power pack [10], including a gear pump [12] and a motor [16], are secured together to form a single assembly. The gear pump [12] has a gear drive [14] that is in rotational communication with a drive shaft [18] extending from the motor [16]. An insert coupling device [20] is constructed of a plastic material and is slip fit onto the drive shaft [18] to dampen vibrations and fluctuations between the shafts [14, 18] and thereby minimize fluid borne noise in the pump [12].

Abstract: A transmission coupling assembly for absorbing axial and/or angular displacement between an internal combustion engine and a downstream gear train comprises a resilient vibration damper (3;24) secured to the flywheel (1;26). A coupling member (4;23) secured to the vibration damper is rotationally coupled to a coupling shaft (7;21) by means of interlocking splines, the splines (4a) of the coupling member being substantially straight and the splines (5a) of the coupling shaft being crowned or spherically curved. At the other end of the coupling shaft (7;21) a similar splined connection is made to the input shaft (8) of the downstream gear train. Lubrication is provided at the splined connection between the coupling shaft and the input shaft of the gear train, with a Z-cross section seal extending between the coupling shaft and the gearbox casing to prevent leakage of lubricant fluid.

Abstract: A coupling assembly for coupling the flywheel of an internal combustion engine to a U-joint based driveline. The coupling member absorbs damaging torque and vibrational energy while maintaining driveline alignment and providing safety through securing of frontplate (1) to alignment safety bearing (14) to backplate (11) while transmitting rotational drive force.

Abstract: A torsion isolator (34) for transmitting torque and dampening torsionals in a driveline. The isolator includes a composite c-shaped spring (48) disposed in an annular chamber (44) of a housing (38,40) filled with torque converter fluid. The spring transmits driveline torque and attenuates torsionals. The spring also functions as a fluid displacement piston by dividing the chamber into radially inner and outer volumes (44a,44b) which vary inversely in volume in response to torque changes flexing the spring. Rapid flexing of the spring increases the fluid pressure in the decreasing volume and thereby dampens or reduces the rate of spring flexing or rebound.

Abstract: A flexible disc is arranged between first and second flanges each designed to be secured to a shaft, the flexible disc being alternately fixed at angular spacings to one each of the flanges. A torsional vibration suppressor is associated with one of the two flanges and has a suppressor collar integrally formed with the flange, a gyrating mass, and a rubber spring suspension system which is secured by vulcanization to the suppressor collar and the gyrating mass. A centering device having a centering collar formed integrally with the flange, a centering body rigidly connected to the other flange, and a rubber spring suspension system secured by vulcanization to the centering collar, is provided for mutually centering the two shafts. This obviates the need for expensive fits or matches and facilitates the assembly of the shaft coupling.

Abstract: A torsion isolator (34) for transmitting torque and dampening torsionals in a driveline. The isolator includes a composite c-shaped spring (48) disposed in an annular chamber (44) of a housing (38,40) filled with torque converter fluid. The spring transmits driveline torque and attenuates torsionals. The spring also functions as a fluid displacement piston by dividing the chamber into radially inner and outer volumes (44a,44b) which vary inversely in volume in response to torque changes flexing the spring. Rapid flexing of the spring increases the fluid pressure in the decreasing volume and thereby dampens or reduces the rate of spring flexing or rebound.

Abstract: A constant velocity flexible coupling for direct drive to the wheels of a low speed light duty wheeled vehicle or 4-wheel drive steer lawn tractor having discs which flexibly couple a drive shaft to a wheel flange.

Abstract: A shaft deflection controller includes an input driveshaft adapted for inputting power from an engine. The input driveshaft includes an axis of rotation and a spur pinion at an end of the input driveshaft. The axis of rotation of the input driveshaft changes, relative to a frame, with deflections of the input driveshaft. Two face gears are adapted for meshing with the spur pinion of the input driveshaft. A flexible shaft stabilizing mount includes an inner sleeve portion and a mounting flange. The inner sleeve portion includes a base portion connecting the inner sleeve portion to the mounting flange and a plurality of cage spring members. The mounting flange is connected to and concentric with the inner sleeve portion. The flexible shaft stabilizing mount controls the deflection of the input driveshaft by applying forces onto the input driveshaft, which tend to resist changes in the alignment of the axis of rotation of the input driveshaft. The flexible shaft stabilizing mount is connected to a rigid frame.

Abstract: A method of operating a flywheel (10) includes the provision of a central shaft (12) defining an axis of rotation; providing a disk-shaped hub (22) joining drivingly with both the shaft and with a rim portion (34); and which hub portion has a shape when the flywheel is at rest which is of a shallow dihedral geometry. That is, the hub is cone-shaped when the flywheel is at rest. As the rotational speed of the flywheel is increased from the at-rest speed toward and then to a design operating speed for the flywheel, this hub progressively flattens out until it becomes flat and extends radially between the shaft and the hub at the design speed for the flywheel. Thus, the flattening of the hub with increasing rotational speed for the flywheel moves the rim portion axially in response to centrifugal force.

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: A garage door operator having reduced noise output during operation includes a head unit having a housing. A motor mount is connected to the housing to support an electric motor. A vibration damper is interposed between the motor mount and the electric motor to reduce noise radiated from the housing when the electric motor is energized to drive a garage door up and down.

Abstract: A flexible shaft coupling in which the torque transmission takes place by way of elastomer shackles between the two shafts to be coupled. The coupling components in the form of separate anchoring plates are all arranged in a single radial plane of the coupling, whereas the radially outward-pointing elastomer shackles are mounted to enclose the coupling. For predetermined torques to be transmitted, this design allows minimal outside dimensions of the flexible shaft coupling, as a result of which these couplings are especially applicable to wheel driveshafts of motor vehicles.

Abstract: A flexible coupling for two shafts rotatable generally about the same axis and having juxtaposed ends has respective end fittings fixed on the shaft ends and each having a radially outwardly directed outer surface, an elastically compressible sleeve having an inner surface engaging both outer surfaces and a radially outwardly directed outer surface and axially oppositely directed end surfaces, and rigid structure including at least one ring engaging the outer and end surfaces of the sleeve. A system is provided for pressing the structure against the outer and end surfaces of the sleeve for pressing the inner sleeve surface against the outer fitting surfaces with a variable force.

Abstract: A torsion isolator (34) for transmitting torque and dampening torsionals in a driveline. The isolator includes a composite c-shaped spring (48) disposed in an annular chamber (44) of a housing (38,40) filled with torque converter fluid. The spring transmits driveline torque and attenuates torsionals. The spring also functions as a fluid displacement piston by dividing the chamber into radially inner and outer volumes (44a,44b) which vary inversely in volume in response to torque changes flexing the spring. Rapid flexing of the spring increases the fluid pressure in the decreasing volume and thereby dampens or reduces the rate of spring flexing or rebound.