Abstract: A speed reduction device including an overrunning clutch has a drive shaft having an eccentric ring and an inner gear plate disposed to be rotatable relative to the eccentric ring. The gear plate has a plurality of teeth and engagement holes. The device further has fixing pins fixed to the housing in engagement with the engagement holes of the inner gear plate to restrict rotation of the inner gear plate to thereby allow swinging of the gear plate, an outer ring disposed around the inner gear plate and connected to a driven shaft and a torque transmitting member which engages the teeth of the inner gear plate to transmit torque from the inner gear plate to the outer ring. The torque transmitting member is arranged to disengage the teeth of the inner gear plate by centrifugal force when the outer ring rotates at a speed higher than a threshold value.

Abstract: Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest. For the adjustment of the back rest vis-a-vis the seat part a fixed mounting is arranged at the seat part. This fixed mounting is joined with an adjustable mounting for the back rest transferring the adjusting movement over a gearing drivable by means of a cam section, defining the position of these mountings related to each other. The gearing includes a radial tooth wheel belonging to a mounting and an internal gear rim of the other mounting catching into the first one, whereby counter toothings are arranged at the mountings. The cam section is formed by two wedge segments inclined against each other and encompassing the bearing point of the adjustable mounting regionally.

Abstract: A flat wave gear drive (1) which has an input shaft (4) supported rotatably at both ends portions thereof between first and second end plates (2, 3). A wave gear mechanism is incorporated between these end plates (2,3), and a cross roller bearing (8) is provided on an outer circumferential side of the wave gear mechanism. The wave gear mechanism comprises a rigid internal gear (5), a silk-hat-shaped flexible external gear (6) provided on the inner side of the internal gear, and an wave generator (7) provided on the inner side of the external gear (6). An annular boss (64) of the flexible external gear is held between an outer ring (81) of the cross roller bearing (8) and the second end plate (3), whereby these three members are fastened to one another. The rigid internal gear (5) is held between an inner ring (82) of the cross roller bearing (8) and the first end plate (2), whereby these three members are fastened to one another. The input shaft (4) may comprise a hollow shaft.

Abstract: An articulation for an automobile seat includes a mobile flange having an inner toothing, a fixed flange having an inner toothing for cooperating directly with the mobile flange and an eccentric means positioned between the mobile flange and the fixed flange for biasing aa articulating element. The eccentric means including a driving axis provided with a snug and a pair of discs rotatable about the axis relative to one another. Each disc having a central recess and an arc-shaped window. The central recess having a hollow housing extending outwardly for receiving the snug of the axis. A resilient member is positioned within the arc-shaped windows of the discs and bears against bearing surfaces provided at the ends of the windows. When the two discs are spaced apart from one another by the eccentric means, the articulation ensures the clearance take-up and the irreversibility of the articulation.

Abstract: With the case of a vehicle seat, in particular for motor vehicles, consisting of individual structural components that include a seat and a seat back, the latter with connecting joint fittings that may be locked at a desired incline to the seat and swung around a swivel pin running in the transverse direction of the seat, the joint fittings (5) can be chosen from at least two groups, including one from gear fittings and the other from groove fittings (5).

Abstract: An internal planetary gear device having an input shaft, an eccentric body rotating with the rotation of the input shaft, an external gear eccentrically rotatably mounted on the eccentric body through a bearing, an internal gear internally meshing with the external gear, and an output shaft connected to the external gear through a device for taking up only components of rotation of the external gear, wherein, each component is manufactured of resin, and one of the internal teeth of the internal gear and the external teeth of the external gear is formed into a tooth profile including an inner envelope configuration of curtate epitrochoid theoretical curve C, while the other, into a convex circular tooth profile.

Abstract: An eccentric gear comprises first and second gear rings (7,10) of which the one (7) has internal, straight cogs and the other (10) a smaller number of external cogs. At least one gear ring has a conical form with a large end (A--A) and a small end (B--B), the other gear ring (10) having a smaller pitch diameter than the first one (7) and being eccentrically mounted in bearings relative to the first one. Axes of symmetry (24,25) of the respective gear rings form an angle (.alpha.) with each other. The contact points or the locations of engagement between the flanks of the cogs in the one gear ring and the opposed flanks of the cogs in the other gear ring are substantially located along a helical line which extends in axial direction between said large and small ends.

Abstract: A variable dwell cycloidal indexing device for converting a uniform rotational motion into intermittent rotational motion with greater than one predetermined dwell point. The device includes an input shaft having an axis of rotation with a stub shaft extending eccentrically from a distal end of the input shaft. A planetary gear is rotatably mounted on the stub shaft. There is an internal gear rotatably supported on the input shaft and mounted coaxially therewith with the planetary gear intermeshing with said internal gear. A crank pin projects from the planetary gear at a position eccentric to the axis of rotation of the planetary gear. The motion of the crank pin during rotation of the input shaft is defined by allowing the crank pin to oscillate in a slide slot at a fixed location, or by attaching the crank pin to a pivoting link which is, in turn, attached to a fixed point. In either case, rotation of the planetary gear about its own axis is limited.

Abstract: A drive device for a part of a motor vehicle which can be moved between end positions, especially for a movable cover of a vehicle roof, with an electric motor which is joined via a reducing gear to a driving pinion which sits on a driven shaft that is drive-connected to the movable part, and with a switching means which controls the motor for shutting off the motor in at least one predetermined position of the movable part which is actuated by a ratchet wheel which is caused to rotate less than 360.degree.

Abstract: Articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats. The articulated fitting has an articulated part which is stationary with respect to the seat part and a swivelable articulated part associated with the backrest, these articulated parts being connected with one another via a swivel axle. The position of the two articulated parts relative to one another is determined by an adjusting and fixing device constructed as a gear unit. The swivel axle has an eccentric portion which is formed by two wedge segments which embrace a driver of the swivel axle, by a driver arm engaging between the narrow sides of the wedge segments, by an energy accumulator which presses apart the wide sides of the wedge segments and possibly by a centering segment arranged adjacent to the latter. The swivel axle has a central receptacle serving to connect with a transmission rod so as to be fixed with respect to rotation relative thereto.

Abstract: The present invention teaches a wobble-hinged metal fitting suitable for adjustable motor vehicle seats, and more particularly, for back seat gears. The fitting includes two hinged brackets connected together by an eccentric, a carrier and shaft running therethrough. Each bracket contains an internal gear and an external gear associated with the internal gear. The eccentric is positioned next to one of the gears and is turnably connected to the shaft. The eccentric includes means for compensating play in the seat which consist of an eccentric part having a receiving inlet, at least one rolling body, at least two jamming planes and at least one spring. The spring is positioned such that it pressures the rolling body to come in contact with the jamming plane on one side and the gear on the other side. The carrier is positioned such that when the rolling body is in a locked position, an initial turning movement of the shaft results in the release of the locked rolling body before the eccentric starts to move.

Abstract: The present invention relates to a gear assembly which comprises an eccentric member having a first cylindrical portion with a first center axis in accordance with a center axis of said eccentric member for receiving said shaft on a front side thereof fronting said motor, and a second cylindrical portion with a second center axis on a back side thereof, said second center axis being eccentrically disposed with said first center axis; a pinion gear equipped with a radial ball bearing in its center, having a first hole, a second hole opposing said first hole, a first number of teeth and a first diameter, said first and second holes being parallel with a center line thereof and said said radial ball bearing being inserted into said second cylindrical portion; With the structure of the gear assembly for a pickup unit feeding apparatus, it is permitted to miniaturize the size of a pickup unit feeding apparatus as well as to exactly control the pickup unit.

Abstract: A motion transmitting device comprising input and output drive shafts. An eccentric is provided on the input drive shaft and supports a carrier in which an array of pins are disposed. The pins are extended from one end face of the carrier for intermittent engagement with respective "open mouthed" openings provided in a reaction plate fixed to the housing of the device in order to define the gyratory motion of the carrier. The output shaft is provided with a geared member, and where between adjacent teeth on the geared member, a profile of part semi-circular shape is provided which become sequentially and intermittently engaged by all the pins during one complete rotation of the output shaft, and where the number of teeth is one less than the number of pins.

Abstract: A pin-ball type reduction gear comprising of a casing rotatably supporting an input shaft and an output shaft such that the input shaft is butted against the output shaft with an interval. A planetary disk eccentrically and rotatably supported by the input shaft. A wave-shaped epitrochoid curve groove, and balls in the number larger than that of the waves of the epitrochoid curve groove, which are provided between the casing and the planetary disk in such a manner as to be engaged with each other and a plurality of pins provided between planetary disk and the output shaft so as to be in parallel to the input shaft and the output shaft, and pin insertion holes each inserted with the pins. The pins and pin insertion holes in the same number are disposed along a circle of the planetary disk or output shaft around the axis of the planetary disk or output shaft and gaps allowing the eccentric motion of the planetary disk to the output shaft are each formed between the pin insertion holes and pins.

Abstract: A gear reducer for reciprocal rotation wherein the rotation of a motor 1 is transmitted to a worm pinion 4 integrated with an input shaft 2, and is further transmitted to a helical worm wheel 10. The helical worm wheel 10 and an eccentric member 11 are spline coupled to each other, and a pin flange 13 is rotated by a planetary gear structure of a trochoid-tooth-profile inscribing type. Consequently, a pinion shaft (output shaft) 14 integrated with the pin flange 13 rotates, and an outside gear 19 rotates.

Abstract: The eccentric body shaft bearing holes, the eccentric body bearing holes and the carrier pin holding holes are set to satisfy the following relationship. Namely, when the first and second supporting blocks and the externally toothed gears are appropriately rearranged in the axial positions thereof, the diameters of the eccentric body shaft bearing holes and the diameters of the eccentric body bearing holes become smaller toward one direction. Also, while keeping the above rearrangement, the diameters of the carrier pin holding holes become smaller in the same direction. The outside diameter of the first and second supporting blocks is set to be smaller than the root diameter of the external teeth of each externally toothed gear.

Abstract: A speed reduction device employing a housing with rotatably mounted input and output shafts. The input shaft includes an eccentric shaft upon which is rotatably mounted a gear wheel. The gear wheel meshes with a ring gear fixed to the housing. The gear wheel has close but not equal to the same number of teeth as the ring gear. A dynamic coupling is provided between the gear wheel and the output shaft. The dynamic coupling includes circular cavities on opposed surfaces on the gear wheel and output shaft, respectively, with balls located between surfaces in the cavities. One set of cavities is enlarged to accommodate the eccentric motion of the gear wheel.

Abstract: An inscribed planetary gear device usable as a speed reducer or an overdrive has a primary shaft which serves, for example, as an input shaft, an externally-toothed gear carried at an eccentricity by the primary shaft; an internally-toothed gear inscribed by the externally-toothed gear; and a secondary shaft which serves, for example, as an output shaft and connected to the externally-toothed gear, through an Oldham's ring which transmits to the secondary shaft only the rotation of the externally-toothed gear taking place about the axis of the externally-toothed gear. The externally-toothed gear is provided with a counter flange at an end facing the Oldham's ring and is operatively connected to the Oldham's ring through Oldham's projections and Oldham's grooves receiving Oldham's projections provided on the Oldham's ring and the counter flange, respectively, or vice versa.

Abstract: A gearbox comprises a row of parallely mounted disks. The mutually facing diametral planes of the disks are carrying cylindrical rings mounted coaxially to the rotation axes of the disks and provided with engaging elements on their internal and external cylindrical surfaces. Due to an offset between the neighboring disks providing for eccentricity between their parallel rotation axes all the rings located in the space between the diametral planes of the neighboring disks are in permanent engagement. Each ring is freely rotatable and is provided with means for its controlled interlocking with the disk carrying it.

Abstract: A single-ring-gear planetary transmission unit with a small difference between teeth includes at least one low-speed shaft which rotates axially; at least one external gear disposed above the low-speed shaft; two high-speed shafts which rotate axially and on each of which at least two eccentric sleeves are rigidly mounted; at least one driving plate, which has two mounting holes rotatably fitted with the eccentric sleeves and at least one driving hole provided with one ring gear that has a few more teeth than those of its corresponding external gear to engage the low-speed shaft; at least one balancing plate which assures a smooth movement of the transmission unit and which has two mounting holes to fit on the high-speed shaft through an eccentric sleeve and one or more shaft-passing portions.

Abstract: A device for limiting the number of revolutions of a shaft for rotary drives of sliding roofs or sliding-lifting roofs or automobiles. The shaft is rotationally blocked in the closed position and in defined intermediate positions of the sliding lid by the cooperation of an actuating element, controlled by the pivotal movements of the crank arm, with a spring-loaded blocking pin.

Abstract: A gear reducer includes a first non-rotatable gear. A second transfer gear formed of a resilient material engages the first gear. The second gear is eccentrically driven about the first gear by an eccentric collar mounted in the second gear and coupled to a motor output shaft. The second transfer gear nutatingly engages a rotatable third gear and moves one tooth of the third gear into alignment with one tooth of the first gear for each predetermined amount of rotation of the second transfer gear. A rotatable driven shaft is coupled to and rotated by the third gear. The first and third gears each have a plurality of gear teeth arranged at the same pitch circle diameter; but provided in a different number of teeth on each of the first and third gears to provide a selective reduction between the speed of rotation of the motor output shaft and the speed of rotation of the driven shaft coupled to the third gear.

Abstract: In an eccentric gear in which the gear rim of a first orbiting cog wheel is in engagement with the gear rim of a second rotating cog wheel, the two gear rims are offset from each other by an eccentricity. The second cog wheel is fixed to a driven shaft seated in a fixed housing. At least three eccentric shafts, which are evenly spaced about the circumference of the cog wheel, are provided for guiding the orbiting cog wheel, the eccentrics of each shaft being seated in respective bores of the orbiting cog wheel. One of the three eccentric shafts extends through the housing wall on one side and is formed as the drive shaft. The three eccentric shafts are coupled via a slider orbiting with an eccentricity which is considerably greater compared with the drive eccentricity.

Abstract: An internally meshing planetary gear structure is the type having a first and second supporting blocks. The supporting blocks are rigidly connected to each other by carrier pins passing through inserting-fit holes formed on externally toothed gears. Also, the end surfaces of the carrier pins are exposed on a counter-member mounting surface of the first supporting block positioned on the counter-member side, and thus screw holes for screwing counter-member fixing bolts are formed on the end surfaces. With this arrangement, it is possible to enlarge the actual usable area of a counter-member mounting surface of the first supporting block and hence to increase the number of counter-member fixing bolts.

Abstract: A speed reducer of the cycloidal type for robots and other industrial manipulators which includes actuation fingers introduced in openings of toothed cams controlled by rotating eccentrics. Each actuation finger is formed by a roller bearing having an inner ring mounted about a pin with clearance to thereby allow self-centering of an outer ring of each roller bearing in its respective opening.

Abstract: A hinge joint which can be installed, for example, between the body supporting portion and the back rest of the seat in a motor vehicle has a first leaf affixed to the body supporting portion, a second leaf affixed to the back rest and a horizontal pintle which pivotally connects the second leaf to the first leaf. The actuating mechanism for pivoting the second leaf comprises a pair of wedge-like sections which are biased apart to bear against the balls and/or needles of one or more antifriction bearings between the first leaf and the sections. The sections flank a motion transmitting member which is moved about the axis of the pintle in order to release the second leaf for angular movement relative to the first leaf. A centering element can be installed next to the sections between the first leaf and a sleeve of the second leaf, and the bearing or bearings can extend between such centering element and the first leaf.

Abstract: A speed reducer of the cycloidal type for robots and other industrial manipulators including a rotating ring which receives input at rapid speed is supported within a casing by a single end bearing which forms a pivot. The opposite end of the ring abuts against roller bearings associated with a pair of cams. Actuation fingers are oriented through housings created by openings in the cams and are connected to an output. The actuation fingers are arranged to be self-centered in the housings.

Abstract: The fixed flange with an inner toothing and the mobile flange with an inner toothing cooperate with a double satellite mounted in a ball bearing forming inside a housing for a composite cam. A sufficient excentration is provided between the diameter of the toothings of the double satellite and the intermediate part concentrical to the toothings of the fixed and mobile flanges so as to allow the composite cam made of two symmetrical and identical parts normally separated from one another at their upper portion by a spring which is slightly under tension and at their lower portion by a finger rigidly connected to an intermediate circular part mounted in bearing in the mobile and fixed flanges.

Abstract: A device for limiting the number of revolutions of a shaft for a rotary drive for a sliding-lifting roof of an automobile is proposed. By the cooperation of a detent bolt, actuated by an actuating knob with a spring-loaded blocking pin and with a rotationally driven blocking ring, the shaft is blocked in rotation not only in the lid closure position, but also by a special construction of the blocking ring, in intermediate sliding and/or lifting positions of the sliding lid.

Abstract: A radial-plunger-type hydraulic pump or motor includes a W-mechanism comprising a first internal gear relatively rotatably mounted on a main shaft, an external gear rotatably mounted on a supplementary shaft and held in mesh with the first internal gear, and a second internal gear rotatably mounted on an auxiliary shaft and held in mesh with the external gear. The first and second internal gears have the same number of gear teeth, and the supplementary shaft and the auxiliary shaft can revolve around the main shaft. When the auxiliary shaft revolves around the main shaft while the first internal gear is being held against rotation, the second internal gear does not rotate about its own axis, but revolves with the auxiliary shaft around the main shaft. The plungers of the radial-plunger-type pump or motor are allowed to reciprocally move in identical strokes, and no thrust load is applied between the plungers and the cylinders in which the plungers reciprocally move.

Abstract: A gear pair having a low tooth number differential and a total contact ratio of .xi..sub..upsilon. =.xi..sub..alpha. +.xi..sub..beta. .gtoreq.1 provided that the profile contact ratio .xi..sub..alpha. <1 and the face contact ratio .xi..sub..beta. >0, wherein the absolute value of the difference of addendum modification coefficients .vertline.X.vertline. is less than one or equal to zero, thus increasing the transmission efficiency. Additionally, a transmission assembly is provided including such a gear pair construction.

Abstract: The device comprises a driving hub (4, 18) coaxially connected to one shaft (20) and oscillatably engaging a number of planetary gear elements (8, 25) homogeneously distributed around the axis of said hub. The planetary gear elements (8, 25) are engaged between a driven crown wheel (6, 21) which is coaxially fastened to a second shaft (3, 23) and an intermediate crown wheel (7, 24) oscillatably linked to the driven crown wheel (6, 21). The planetary gear elements (8, 25) driven in rotation by the hub (4, 18), are guided by the driven crown wheel (6, 21) and the intermediate crown wheel (7, 24) according to an elliptic path submitting them to a cyclic reciprocating movement relative to the axis of the driving hub (4, 18). An actuator (12, 35) tends to cause the driven crown wheel (6, 21) and intermediate crown wheel (7, 24) to rotate in opposite ways in view of transmitting resultant forces counteracting their being driven by the hub (4, 18) to the planetary gear elements (8, 25).

Abstract: In a hypocycloidal train mechanism, an annular spring is mounted in front of a roller bearing housed between a double satellite and a control cam on a face turned toward a mobile flange. This annular spring has a semicircular cross-section, with one end of the spring being curved and hooked inside a cutout of the control cam, while the other end of the spring is free.

Abstract: A jointed fitting is described for vehicle seats comprising a planetary gear enabling the two fitting parts joined by a joint axle to be pivoted relative to each other, a second gear wheel (6) with an external toothing engages a first gear wheel (5) with an internal toothing. Both gear wheels (5, 6) have an involute toothing. Their teeth (7, 8) have a rounded-off head and the number of teeth of the second gear wheel (6) is slightly less than that of the first gear wheel (5). That point on the tooth flanks of the first gear wheel (5) at which the flank section extending along an involute passes into the flank section formed by the rounding-off of the head lies on a circle, the diameter (d.sub.el) of which is chosen so as to be at least approximately the same as the base circle diameter (d.sub.bl) of the first gear wheel (5). The top circle diameter (d.sub.al) of the first gear wheel (5) is smaller than its base circle diameter (d.sub.bl).

Abstract: Drive device for a vehicle part that is displaceable between end positions, with an electric motor connected by a reduction gear to a driving pinion which is connected to the vehicle part so as to drive it, as well as with a switching device for controlling the motor to stop the motor in at least one predetermined position of the vehicle part. To actuate the switching device there is a switch wheel which, during displacement of the vehicle part between its end positions, is rotated less than 360.degree. by an eccentric gear train. The eccentric gear train has an external gear with an internal toothing coaxial to a common shaft of the reduction gear and the eccentric gear train, an eccentric disk that is connected to the common shaft in a manner precluding relative rotation between the eccentric disk, and an internal gear with an external toothing that meshes with the internal toothing of the external gear.

Abstract: A mechanism for providing a cycloidal output motion for an output member in a linear direction using a constant velocity rotary input motion driving an off-center input shaft and drive gear and utilizing a secondary motion to influence the position of the drive gear in relation to the output member and the acceleration and deceleration of the output member. A compact embodiment utilizes a ring gear and planetary and a reaction motion to provide the secondary input.

Abstract: This geared motor comprises an outlet shaft (2) of the motor (1), carrying two coaxial screws (3, 4) offset axially and of mutually opposed screw pitch, two gearwheels (5, 6) located on either side of the shaft and each interacting with a screw (3, 4), an axle (7, 8) fastened to each gearwheel and extended by a crankpin (9, 11) eccentric relative to the corresponding axle (7, 8) so as to be capable of executing rotations about this axle, an element (12) equipped with a toothing (13) and linked to the crankpins in such a way as, during the rotation of the crankpins, to be driven in a circular translational movement, the radius of which is equal to the eccentricity of the crankpins, and a member (16) equipped with an output shaft (18) connectable to the component to be driven and carrying a toothing (17) interacting with that of the element so as to bring about a rotation of the member (16) in a ratio determined by the difference in the numbers of teeth of the two toothings.

Abstract: A variable speed transmission transmits power between an input and output in which a pinion gear, a rotor and a cam are mounted for relative rotation therebetween. First and second gear rack pairs have opposite facing toothed gear racks which are spaced apart sufficiently to receive the pinion gear and cam therebetween when the pinion gear engages at least one of the gear racks, and an outer surface of the cam is adjacent at least one of the gear racks. Structure is provided to prevent contact between the rack teeth and the outer surface of the cam. First and second rack supports support the rack pairs against lateral movement to ensure full engagement between the pinion and sequentially engaged racks. The rack supports slidingly engage the rotor to transmit power therebetween in such a manner that a resultant force vector from contact between the pinion gear and gear rack passes closely adjacent a point of contact between a rack support and the rotor.

Abstract: An internal meshing type planetary gear reducer made of plastic material constructed in such a manner that an external gear fitted on an eccentric member integrally formed on an input shaft internally meshes with an internal gear, and inner pins formed on the external gear integrally therewith are inserted in inner-pin holes provided in a flange formed at one end portion of an output shaft so that rotation of the input shaft is reduced in speed and the speed-reduced rotation is transmitted to the output shaft. In the internal meshing type planetary gear reducer, each inner pin is provided with cutouts on inner and outer sides thereof in a radial direction of the external gear, or each inner-pin hole is provided with cutouts on inner and outer sides thereof in a radial direction of the flange, and only the inner pins which serve to transmit a torque at a predetermined range of the contacting location are arranged to be in contact with the inner-pin holes.

Abstract: A rotary actuator suitable for a robotic arm or servo drive, which is capable of large loads and large speed reductions is disclosed. The device includes an input shaft that drives an epicyclic transmission integral with the articulation. The transmission is contained in a fixed arm housing and an end housing. An input shaft has eccentrics that rotate two primary external spur gears which are engaged with two primary internal gears. The two primary external gears are fastened on both faces of the external secondary gear. The external primary gears and external secondary gear rotate about the axis of an eccentric, and orbit the input shaft axis. A secondary external gear transmits its rotary motion to an internal secondary gear affixed to an output arm. Large speed reductions are possible due to the differential action of the primary and secondary gears.

Abstract: A coupling device for power transfer between drive and driven shafts coaxially arranged with each other for relative rotation, which includes an inner member mounted on one end of the drive shaft for rotation therewith and having an eccentric cylindrical support portion the central axis of which is radially displaced from the central axis of the drive shaft, an outer cylindrical casing coaxially connected to one end of the driven shaft for rotation therewith and being arranged in surrounding relationship with the support portion of the inner member, the casing having a number of internal teeth formed therein, an inscribed gear rotatably carried by the support portion of the inner member and being in meshing engagement with the internal teeth of the casing to transfer the power only from the drive shaft to the driven shaft in response to the difference in rotational speed between the shafts, and a separator rotatably carried by the support portion of the inner member and having a guide portion disposed between

Abstract: A variable speed transmission transmits power between an input and output in which a pinion gear, a rotor and a cam are mounted for relative rotation therebetween. First and second gear rack pairs have opposite facing toothed gear racks which are spaced apart sufficiently to receive the pinion gear and cam therebetween when the pinion gear engages at least one of the gear racks, and the outer surface of the cam is adjacent at least one of the gear racks. First and second rack supports support the rack pairs against lateral movement to ensure full engagement between the pinion and sequentially engaged racks. The rack support slidingly engage the rotor to transmit power therebetween in such a manner that a resultant force vector from contact between the pinion and gear rack passes closely adjacent a point of contact between a rack support and a rotor. Teeth of the gears have inclined tips to facilitate meshing.

Abstract: The articulation mechanisms is made particularly of irreversible satellite mechanisms connected to one another by a connection bar. The connection bar has, on one of its portion, a member with toothings subjected to action of a spring which, when the connection bar is in position between two cams of the articulation mechanisms, causes a rotation of these cams and of the satellites related thereto for taking up the manufacturing and mounting clearances.

Abstract: A cycloidal gear device is provided in which rotational input motion is transformed through oscillation of a torque plate in linear direction to a smooth, high torque low speed output. In one embodiment, the device also includes a hollow input shaft, and an output shaft telescoped within the input shaft. The input shaft is journalled on the output shaft to thereby utilize the output shaft on a load support member for the input forces.

Abstract: This invention is a steplessly variable power transmission, comprising: an input driven planet gear, having axially disposed teeth, confined to reciprocate in straight diametrical channels in a output driving ring gear. When the teeth also move on a straight line as related to the housing, no rotary drive can be placed on the output ring gear, and the transmission is in a neutral mode. But, when the teeth are forced to curve, as related to the housing, the output gear must rotate accordingly. For example: if the input driven teeth veer away one degree, from a straight line, while the input rotates a full 360 degree rotation, then the input-output ratio is 360 to 1 underdrive. When the teeth path is a circle, the ratio is 1 to 1, but, the extreme lows, allow built-in overdrive gearing. The preferred embodiment has a stepless range from neutral to 3 to 1 overdrive. There are numerous methods to curve the path of the input driven teeth.

Abstract: An eccentric gear comprising a stationary gear wheel (2) and an eccentric gear wheel (9). The eccentric wheel is freely mounted on the input shaft and is driven round by eccentric means (4, 6) causing the eccentric wheel to roll round the internal teeth on the stationary wheel. A driving dog transmits the slow rotation of the eccentric wheel to an output shaft (14). Distinguishing for the invention is that the teeth are corrected such that the eccentric wheel is adjusted with the aid of the two eccentric means such that there is practically no backlash. A computer calculated least clearance between respective top lands on the teeth is obtained with respect to tooth meshing. The eccentric means comprises two cylindrical sleeves arranged eccentrically one in the other. At one end part of each of the sleeves, one of which is arranged eccentrically in the other, there is a radially outstanding tongue (5, 7).

Abstract: A seat reclining mechanism including a cushion arm pivotally connected to a squab arm by a planetary gear arrangement, the planetary gear arrangement including a pair of side by side ring gears, one of the ring gears being secured to the squab arm and the other of the ring gears being secured to the cushion arm, a sun and planetary gear arrangement common to both ring gears, the sun and planetary gear arrangement including radially movable planetary gears surrounding at least one sun gear having a fruso-conical form which is biased in an axial direction so as to urge the planetary gears in a radially outwards direction and into contact with the ring gears.

Abstract: A bearing arrangement and drive transmission arrangement of a rotary piston internal combustion engine having trochoidal-shaped casing mantle raceway surfacing and having a triangular piston controlled by a synchronous drive transmission consisting of a hollow gear and a pinion, with which the teeth of the hollow gear are machined or worked out of a piston bore extending over the entire width by impact pushing/cutting and broaching. A further bore is concentrically provided in the piston bore and extends from a side remote from the synchronous drive transmission as far as to the hollow gear and of which teeth only tooth butt ends are left standing upon which a bearing sleeve of the eccentric bearing is pressed thereon. Cooling passages or channels result between the bearing sleeve and the tooth butt ends. Transfer of contact heat from the piston onto the eccentric bearing is considerably reduced by engagement of the bearing sleeve only upon the tooth butt ends.

Abstract: A mechanism for transmitting rotational motion from an input shaft to an output shaft includes a link which is constrained to move about an orbital path, the input shaft being coupled to the link so that rotation thereof will drive the link about its orbital path, and the output shaft being coupled to the link so that orbital motion of the link will cause the output shaft to rotate.

Abstract: Continuous joint permitting automatic compensation of clearances consisting of a fixed plate integral with the seat part and a moving plate integral with the back, this assembly capable of having an angular movement of one of the parts in relation to the other in which: an elastic bearing is inserted between the eccentric constituting a cam and a tooth part which it drives. One of the plates is provided with a shaft which is seated in a bearing aperture of the eccentric constituting a cam bearing aperture which is provided with two main support zones on which the shaft bears.