Abstract: A gear includes helical toothing and is composed of segments, and each segment has a toothing section that has a helical toothing. Each toothing section of each segment is connected via first and second webs as well as connecting sections to the connection region, the connecting sections, and the first and the second webs are set apart from each other or are at least sectionally set apart from each other, e.g., such that the segment has a plurality of axially uninterrupted recesses, in particular three or more. The axial region covered by the first webs is set apart from the axial region covered by the second webs, in particular so that the segment has at least one recess that is uninterrupted in the circumferential direction.

Abstract: A flexplate for a motor vehicle drivetrain includes a carry plate configured for being connected to an engine crankshaft and a drive plate. The drive plate and the carry plate are separate components attached directly via contact. The drive plate is configured for transferring torque input into the carry plate to a downstream component. A method of constructing a flexplate for a motor vehicle drivetrain includes stamping a carry plate configured for being connected to an engine crankshaft; stamping a drive plate separate from the carry plate; and attaching the drive plate and the carry plate directly together via contact. The drive plate is configured for transferring torque input into the carry plate to a downstream component.

Abstract: A component with inner teeth (3) and outer teeth (6). The component (7) comprising a basic body (2) provided with the inner teeth (3) and a sheet component (5) provided with the outer teeth (6). The sheet component (5) is connected to the basic body (2), during the manufacturing process, by positive interlock in both the tangential and radial directions.

Abstract: Provided is a worm wheel that allows the residual stress in the plastic gear forming member thereof to be reduced, and suited for compact design. The worm wheel comprises a metallic core member (30) and a plastic gear forming member (20) formed on an outer periphery of the core member. In particular, the core member includes a boss portion (31) defining a pivot portion, an intermediate portion (32) extending radially from the outer periphery of the boss portion, and a cylindrical portion (33) connected to a radially outer end of the intermediate portion and having the gear forming member molded thereon coaxially with the boss, the cylindrical portion being formed with through holes (34) or cutouts (36) passed radially therethrough.

Abstract: A rotationally fixed connection of first and second components (2, 4) of a transmission (1) for torque transfer. The fixed connection is produced by the combination of two different types of connection elements (6, 7, 8, 9), such that the connection elements (6, 8) of a first type ensures the mutual centering of the first and the second components (2, 4) to be connected and torque transfer, while the connection elements (7, 9) of a second type enable the first and the second components (2, 4) to be axially fixed and transfer axial operating forces.

Abstract: A sheet metal outsert-molded gear, in which a molded resin gear is formed by outsert-molding along the outer perimeter of a disk-shaped sheet metal, characterized in that one or more notches, holes, or protrusions are provided in the outer perimeter of the disk-shaped sheet metal.

Abstract: A multiple clutch arrangement includes a drive member, first and second output members, a first clutch arrangement for selective activation of a first torque transmission path between the drive member and the first output member, and a second clutch arrangement for selective activation of a second torque transmission path between the drive member and the second output member. A torsional vibration damper arrangement is arranged in at least one of the first and second clutch arrangements in the associated torque transmission path.

Abstract: A control cam or a gear wheel having a plurality of layers of flat material placed one on top of the other. Each of the layers of flat material is of a multi-part form with partition lines that extend in a direction of planes over the layers of material. At least some of the partition lines of neighboring layers of the flat material are offset in relation to one another. The partition line of a layer of flat material is arranged so that in both circumferential directions it lies approximately equally spaced in relation to a partition line of a neighboring layer of flat material.

Abstract: A hub for a motor vehicle clutch includes a driver and a ring element arranged on the driver and constructed as a sheet metal part with a profile that receives torque to be conducted into a driven shaft by friction facings via the driver. The driver is also made from a sheet metal part. A radial outer area of the driver has a shape corresponding to the ring element. The hub has a low weight and is produced economically.

Abstract: A method for the manufacture of a machine part with external toothing from a circular sheet metal blank. According to this method the blank is fixed between a tool and a tail stock. Subsequently the circumferential edge of the circular sheet metal blank is bent by a first metal working roll towards the side of the tool by an angle of more than 180.degree. to form a curl. This curl is radially flattened with a second metal working roll. Subsequently the flattened curl is pressed against the tool with a gear cutting roll and shaped to form an external tooth system.

Abstract: A method is provided for forming a one-piece sheet metal toothed wheel including a central sheet metal wall of predetermined thickness and a series of integral teeth on the periphery of the central wall.The method comprises a combination of steps the initial one is cold-forming a circular piece of sheet metal into a preform having an outer annular section of generally uniform cross-sectional configuration and an integral sheet metal central wall.The next step is rotating (1) the rotary holding unit with the preform secured thereto about the preform axis, and (2) the tooth-forming tool unit about the rotational axis thereof in a predetermined rotational relation wherein the axes are parallel and the rotational speeds are synchronized.

Abstract: A drive gear for a motor vehicle including a starter disc having a hub for attachment to a shaft of a vehicle motor for joint rotation therewith, and a drive ring which is supported on the starter disc, is provided with a plurality of holes for connecting the drive ring to a converter of the automatic transmission of the vehicle and has, in the region of the holes, protrusions which engage in corresponding recessed openings formed in the starter disc.

Abstract: A laminated gear and a method of forming the laminated gear are disclosed. The method comprises punching a central hole and a circular array of closely adjacent perforations in a generally planar sheet. The array defines an interior portion having the outline of the gear, and a selvedge portion disposed outboard the perforations. The central hole and the perforations are progressively stamped until they have burnished faces perpendicular to the sides of the sheet. Web portions interconnecting the interior and selvedge portions are then broken to separate the gear from the sheet. A projection and corresponding recess are then stamped on the opposite sides of the gear. A predetermined number of gears are queued and finally arranged into an assembly by frictionally nesting the projections and corresponding recesses. The central holes are thereby aligned to form a bore adapted to be press fit onto a camshaft or crankshaft. The laminated gear formed by this method is also disclosed.

Abstract: A method of forming a one-piece sheet metal toothed wheel comprising the steps of rotating (1) a rotary holding unit with the preform secured thereto about the preform axis and an inner portion of an outer annular section of the preform within a back-up space provided by the holding unit, and (2) a tooth-forming tool unit about the rotational axis thereof in a predetermined rotational relation wherein the axes are parallel and the rotational speeds are synchronized, and then while the rotary holding unit with the preform secured thereto and the tooth-forming tool unit are in the predetermined rotational relation affecting relative movement between the units and the axes thereof in a direction toward one another to engage the tooth-forming periphery fo the tooth-forming tool unit in cooperation metal-deforming relation with the outer portion of the outer annular section inwardly of the exterior periphery the preform until the sheet metal of the outer portion of the annular section is cold-formed into the serie

Abstract: A cold-formed gear made from a single circular sheet of sheet metal. The gear is formed to have a central wall and a series of gear teeth surrounding the central wall. The teeth are formed in a outer annular section of the steel sheet by rolling contact with a cold-forming gear member. Extending from the outer annular section is a radial surface that supports the gear on a preform unit and then can be formed into a pulse ring for the gear.

Abstract: A method of forming a toothed wheel comprising the steps of cold-forming a circular piece of sheet metal of predetermined thickness into a preform, rotating (1) a rotary holding unit with the preform secured thereto about the preform axis and with a control surface of the holding unit underlying at least a portion of an annular section of the preform and (2) a tooth-forming tool unit in a predetermined rotational relation wherein the axes of rotation are parallel and the rotational speeds are synchronized, and while in the predetermined rotational relation affecting a relative movement between the units and the axes thereof in a direction toward one another to engage a tooth-forming periphery of the tooth-forming tool unit in cooperating metal-deforming relation with the annular section inwardly of the exterior periphery thereof until the sheet metal of the annular section is cold-formed into the series of teeth, the peripheries of which are cold-formed by rolling contact with the tooth-forming periphery of t

Abstract: Disclosed herein is a gear structure which comprises a sectoral base member of metal plate; and an arcuate flange portion integrally formed on an arcuate flange portion integrally formed on an arcuate peripheral portion of the sectoral base member. The arcuate flange portion is formed on an outer surface of thereof with forged teeth.

Abstract: A pulser ring has cylindrical inner and outer rings nested together. The inner ring is formed at its one end with protrusions arranged at equal angular intervals. The outer ring is in the shape of a round comb and has its teeth engaged at a portion near the tip thereof in the grooves defined between the adjacent protrusions formed on the inner ring. The tip of each tooth protruding from the grooves is bent radially inwardly so as to engage the end face of the protrusion on the inner ring, thus coupling the inner ring and the outer ring together.

Abstract: The generator wheel is composed of a tooth part and of a marker part. The tooth part has a rotational axis and a coaxial tooth or toothed edge in the shape of a circular ring with teeth situated distributed over its circumference, some of said teeth being marker teeth which include a recess. The marker part is secured to the tooth part and contains sheet metal strips corresponding in number to the number of marker teeth, said sheet metal strips projecting into said recesses of the marker teeth. Marker part and tooth part are composed of materials having different eddy current losses.

Abstract: The picking band wheel is made of a hub and two wheel discs. Each disc is provided with pocket-like spoke parts which have transverse walls at the bottom which abut the transverse walls of the other disc on a common connecting plane disposed substantially perpendicularly to the axis of rotation of the wheel. The front disc has a conical end wall in which the pocket-like spoke parts are formed so that an alternating spoke pattern is formed. The back disc has a flat end wall.

Abstract: A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of axially spaced and radially extending interfaces. The cam gear is press fit onto the camshaft and the frictional forces between the gear and the camshaft provide the substantially sole force for maintaining the interfaces between the plate members in abutting relationship at their radially outer ends to form integral tooth members. The cam is also constructed of a laminated stack of flat plate members and press fit onto the camshaft in substantially the same manner as the gear to form an integral cam surface. The plates which form the cam are stamped from the plates that form the gear.

Abstract: A tension or idler roller for a belt drive system has an outer roller for engaging a belt, an inner support body adapted to be affixed to a machine, and a rolling bearing between the outer roller and the support body. The support body is comprised of a pair of identical cup-shaped elements oriented either with their open ends toward one another or their closed ends toward one another, the shells having an eccentric mounting. The inner ring of the bearing may be a separate element or it may be formed in the shells.

Abstract: A pulley for use with a cogged belt, comprises first and second discs formed of sheet metal and secured with each other as a single unit, each disc being formed at its peripheral section with a plurality of teeth, the teeth of the first and second discs being so bent that the bent portion of each tooth of the first disc and the same of the second disc project in the opposite direction to each other, thereby greatly lightening the weight of the pulley to suppress the noise generation due to the vibration of a crankshaft and a camshaft of an engine.

Abstract: A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of axially spaced and radially extending interfaces. The cam gear is press fit onto the camshaft and the frictional forces between the gear and the camshaft provide the substantially sole force for maintaining the interfaces between the plate members in abutting relationship at their radially outer ends to form integral tooth members. The cam is also constructed of a laminated stack of flat plate members and press fit onto the camshaft in substantially the same manner as the gear to form an integral cam surface. The plates which form the cam are stamped from the plates that form the gear. A method of forming the wheel assembly is also disclosed.

Abstract: A toothed pulley of pressed sheet metal comprising a first sheet metal element which includes a cylindrical toothed rim connected to a centrally-apertured internal disc lying in a plane perpendicular to the axis of the toothed rim and substantially equidistant from the two circumferential end edges of the toothed rim, a second sheet metal element including a centrally-apertured, internal, flat disc which mates with and is fixed to the internal disc of the first sheet metal element, and is connected to an outer circumferential flange projecting radially from and fixed to one of the end circumferential edges of the toothed rim, and a sheet metal hub which includes a central cup-shaped portion inserted in the coinciding central apertures of the internal discs of the sheet metal elements and has a centrally-apertured, flat, bottom surface for contact with an end surface of the support shaft for the pulley, and a flat, outer circumferential flange fixed to the two discs.

Abstract: A chain gear for a bicycle is formed from an approximately rectangular metallic band-shaped plate which has gear teeth formed along one edge and which is equal in length to the peripheral length of the chain gear. The band-shaped plate is wound into a ring-shape and end portions of the band-shaped plate are secured together to form the chain gear. The chain gear is secured to a chain gear adapter of a bicycle by a fixing means, the adapter rotating in accordance with a pedalling operation.

Abstract: An anti-backlash twin gear formed by a pair of identical half-gears, each fabricated by stamping a metal sheet to create a toothed wheel provided with a diametrical spoke having a central mounting bore. The arched area between one side of the spoke and one half section of the wheel is fully excised to form an open region, whereas the arched area between the opposite side of the spoke and the other half section of the wheel is contour-cut to define a C-shaped flat spring whose foot is integral with the spoke. The spring is offset from the plane of the wheel whereby when the pair of half-gears are juxtaposed, the untensioned spring of each half gear is received within the open region of the other and the free end of the spring abuts the edge of the spoke flanking this region to effect a slight angular displacement of the half-gear.

Abstract: A composite gear of metal and plastic is provided and specifically a composite ring gear for a cement mixer. The ring gear for rotating the mixing drum of a cement mixer is commonly formed by stamping teeth in a metal flange circumjacent an intermediate portion of the mixing drum. Such gears have been noisy and lack impact resistance. The new ring gear comprises a metal flange to which is affixed a plurality of arcuate gear segments of a plastic material having gear teeth formed therein. The teeth of the plastic segments mesh with a drive pinion gear. The composite gear is much quieter and is also more impact resistant during operation. The segments can also be inexpensively and readily replaced, if necessary.

Abstract: A driven mechanism for a rotatory heat regenerator, in which a shock absorbing member is fitted around the outer peripheral surface of a discoidal rotatory regenerator having a honeycomb structure. A metal ring having teeth is set around the outer periphery of the shock absorbing member and held in position thereby. The ring is driven by at least one driving gear connected with a prime mover and transfers torque to the rotatory regenerator. Torque fluctuations on the driving gear are moderated by the elastic deformation of the ring and the shock absorbing member. Any difference in the amount of thermal expansion between the ring and the regenerator is compensated by the shock absorbing member.

Abstract: A sprocket gear assembly comprising a sheet metal cup-shaped sprocket member having teeth formed from the sheet metal on an annular outer portion and a central hub having splines formed therein, the hub and outer portion being separated by a radial flange on each side of the sprocket assembly. The radial flange on one side is integral with the annular outer portion, and the hub may either be integral therewith and secured to a disc forming the other radial flange, or may be integral with the other radial flange and secured to said one radial flange, with the other radial flange welded to the annular outer portion. Alternatively the hub may be formed as a sheet metal component and is secured to the cup-shaped member.

Abstract: A wheel mounting assembly for a tire balancing machine of a type for rotating a wheel with a tire mounted thereon includes an annular support plate arranged to be mounted for rotation by the machine. The support plate carries means for simultaneously moving a plurality of studs uniformly between first and second radial positions defined about the axis of rotation of the support plate. The foregoing means includes a central gear disposed on the axis of rotation of the support plate. A plurality of satellite gears corresponding in number to the number of the studs needed for support of a given wheel are disposed about the axis of rotation of the plate in engagement with the central gear. The studs are carried on means supported from each satellite gear so as to revolve about the axis of rotation of the satellite gears whereby rotation of one of the satellite gears serves to rotate the others to the same degree via the central gear so as to move all studs simultaneously from the first to the second position.