Abstract: An endless transmission belt for transmitting torque between a pair of pulleys including a plurality of pairs of first and second metallic blocks having at least one through holes in alignment with recesses formed in opposite inclined side edges of the block and an endless chain belt for holding said metallic blocks. The endless chain belt is constructed by at least three strands of link plates which are pivotally interconnected with predetermined intervals therebetween with common articulating pins. Each strand of link plates is inserted into each of through holes or holes and recesses and a pair of first and second metallic blocks is retained pivotably between a pair of adjacent pins.

Abstract: Pressure regulating system for use in an automatic transmission including a fluid coupling, a belt drive continuously-variable speed transmission mechanism having an input pulley and an output pulley which are rotatably interlocked with a V-belt and a reduction ratio control system for controlling the reduction ratio of the belt drive continuously-variable speed transmission mechanism. The pressure regulating system includes a regulator valve capable of regulating the discharge pressure of an oil pump to provide a line pressure, a reduction ratio detecting valve and a throttle pressure valve. The reduction ratio detecting valve receives the line pressure and provides a pressure which is proportional to the displacement of the movable flange of the output pulley with respect to the corresponding fixed flange.

Abstract: Pulleys are provided with load cam mechanisms which exert axial forces corresponding to transmitted torque, and actuator means such as ball screw mechanisms which shift the movable sheaves of both pulleys in axial direction, wherein the axial forces occuring at the pulleys are carried by their shafts and do not act on the housing. A counter shaft is located between the primary and secondary shafts, the countershaft being rotated to drive the actuator means through gearing such as gearwheels, to alter the drive ratio. During power transmission, the axial forces acting on the movable sheaves of primary and secondary pulleys are converted into torque by the actuator means, where the torques are transmitted to the counter shaft in the form of counteracting torques, so that alteration of drive ratio can be made with slight effort on the counter shaft, equivalent ot the difference between the counteracting torques.

Abstract: A power delivery system including an input shaft for transmitting driving power of an engine, an output shaft mounted concentrically with the input shaft, a pump mounted concentrically between the input and output shafts and connected to the input shaft, a fluid coupling having a turbine connected to the output shaft, a case containing the fluid coupling, and a power cut-off device, characterized in that the power cut-off device is provided with a frictional coupling element and a servo mechanism thereof and mounted in the aforementioned case.

Abstract: An automatic transmission, wherein a first shaft is rotatably supported by the transmission case, and an input shaft is coupled with an engine output shaft. Additionally, a second shaft, comprising a long shaft and a short shaft rotatably mounted thereupon, wherein the short shaft has a helical input gear connected to an output gear of the first shaft by meshing engagement, a differential gear with a large helical drive gear connects to an output gear of the second shaft, and a speed-changing planetary gear connects to the short shaft.

Abstract: A parking mechanism for a transmission, comprising: a coupling member engageable simultaneously with two gears for different gear positions of the transmission when a change device provided besides a driver's seat is set in a "parking" position.

Abstract: An automatic transmission for a front-engine front-drive vehicle comprising a fluid coupling, a belt type continuously-variable speed transmission (C.V.T.), a planetary gear mechanism, a forward-reverse changeover mechanism and a differential device. The planetary gear mechanism includes first and second planetary gear sets, a first intermediate shaft connected to a ring gear of the first planetary gear set and a sun gear of the second planetary gear set, a second intermediate shaft connected to a planetary carrier of the first planetary gear set and a ring gear of the second planetary gear set, and an input shaft connected to an output C.V.T. The forward-reverse changeover mechanism includes a brake disposed between the output of the C.V.T.

Abstract: A power delivery system, which includes an input shaft, an output shaft disposed concentrically with the input shaft, a fluid coupling and a power cut-off device interposed between the input and output shafts, and a case containing the fluid coupling, characterized in that the power cut-off device is located on a radially inner side of the fluid coupling, and an oil pump for supplying oil into the fluid coupling case is positioned within the case adjacent the radially inward periphery of the power cut-off device.

Abstract: A coupling mechanism including a fluid coupling device having input and output elements, and a centrifugal type lock-up clutch for releasably engaging the input and output elements, characterized in that the lock-up clutch comprises: a cylindrical inner surface formed on the input element; a drive plate provided with friction elements displaceable in a radially outward direction for engagement with the cylindrical inner surface, and cam weights for urging the friction elements in a radially outward direction; a driven plate coupled with the output element; a damper of a resilient material provided between the drive and driven plates; and a cam surface for urging the cam weights in a radially outward direction according to the degree of relative displacement between the drive and driven plates.

Abstract: A centrifugal type friction clutch, comprising: a first rotary coupling member provided with a plural number of friction element support means on the outer peripheral portions thereof; a second rotary coupling member having a cylindrical inner peripheral surface disposed coaxially with the outer periphery of the first rotary coupling member and provided with a frictional engaging surface thereon; and friction coupling elements respectively supported by the friction element support means and displaceable radially outward according to the rotational speed of the first rotary coupling member for engagement with the frictional engaging surface of the second rotary coupling member; each one of the friction coupling elements comprising an arcuate friction shoe with a frictional engaging surface on the outer periphery thereof, a resilient retractor means located between the friction shoe and friction element support means, and a cam means pivotally supported on the first rotary coupling member for pressing the frict

Abstract: An endless driving belt of the kind adapted for entrainment between at least two pulleys in a V-belt continuously variable transmission, has a plurality of links; means for connecting each link to a next link to enable articulated movement of the links; a plurality of primary blocks engaging the links and positioned one each between adjacent pins; a plurality of secondary blocks disposed one each between adjacent primary blocks and radially supported by one of the pins to provide a clearance preventing engagement with the links, the primary and secondary blocks being engageable with one another; and, the secondary blocks having side surfaces for engaging the entrained pulleys and the primary blocks having side surfaces adapted to avoid engagement with the entrained pulleys, radially and outwardly directed driving forces being transmitted from a driving pulley to the secondary blocks and from the secondary blocks to the pins, the links being driven only by nonradially directed forces, whereby the radially and

Abstract: An endless transmission belt adapted for extension between a pair of pulleys for a V-belt type continuously variable transmission, the belt comprising: a plurality of linking units, each link unit comprising a plurality of link elements having opposite end portions thereof over lapped alternately with link elements of adjacent link units; joint members pivotally connecting the overlapped end portions of adjacent links; paired first and second blocks disposed over each of the link units between adjacent joint members, each block having side surfaces engageable with the pulleys; each of the first blocks having an outer lapping face in abutting engagement with an adjacent second block and having an inter lapping face with a connecting portion in engagement with one of the joint members, each of the joint members pivotally supporting one of the first blocks in a radial position providing a clearance between each first block and each link unit; and, each of the second blocks having an outer lapping face in abuttin

Abstract: A vehicular continuously variable transmission comprising a V-belt drive continuously variable transmission and a power transmission splitting driving mechanism consisting of a combination of a fluid coupling and a planetary gearing and disposed between the output shaft of the continuously variable transmission of the vehicle and the V-belt drive continuously variable transmission.

Abstract: A centrifugal type friction clutch for motor vehicles, which include: a disk serving as an output member and provided with a number of frictional coupling element support means in outer peripheral portions thereof; a drum serving as an input member and provided with a frictional coupling surface on the inner periphery thereof in coaxial relation with the circumference of the disk; and frictional coupling elements respectively supported by the frictional coupling element support means and displaceable radially outward according to the rotational speed of the disk for engagement with frictional coupling surface on the drum.

Abstract: An automatic transmission for a front-engine front-drive vehicle including a fluid coupling, a belt type continuously-variable speed transmission (CVT), a planetary gear mechanism, a forward-reverse changeover mechanism and a differential device. The forward-reverse changeover mechanism includes a brake disposed between the planetary gear mechanism and the output of CVT. The planetary gear mechanism is provided with a low-high speed changeover mechanism. Each of the clutch and the brake is provided with recesses in one part thereof and are provided with projections in the other part which can be fitted into the recesses, and the dimension of the outer diameter thereof is small as compared with that of clutches or brakes of the wet multiple-disc type.

Abstract: An automatic transmission for a vehicle including a fluid coupling, a belt type continuously-variable speed transmission (CVT), a planetary gear mechanism and a differential device. The planetary gear mechanism includes a first input shaft and a second input shaft, wherein when the first input shaft is connected to an output shaft of CVT through a clutch, a forward range gear train is formed; whereas when the second input shaft is connected to the output of CVT by the clutch, a reverse range gear train is formed. A low-high speed changeover mechanism including a brake is provided in the planetary gear mechanism, and a first element and a second element of the planetary gear mechanism are selectively held in a stationary position by means of the brake to selectively form the forward range high-speed gear train and forward range low-speed gear train.

Abstract: A stepless automatic transmission for a motor vehicle includes a V-belt type stepless transmission mechanism having input and output pulleys mounted respectively on input and output shafts, each pulley being provided with a hydraulic servo for varying the effective diameter thereof, and a V-belt linking the input and output pulleys to transmit power therebetween, in combination with a forward/reverse change-over mechanism and a coupler such as a fluid coupling, centrifugal clutch or friction clutch, and a hydraulic control system.

Abstract: A belt drive continuously-variable speed automatic transmission for motor vehicles, comprises a torque converter, forward/reverse rotation changeover mechanism, a belt drive continuously-variable speed transmission means and a differential gear disposed in a single housing in an integrated unit.The belt drive continuously-variable speed transmission means comprises a primary variable-pitch pulley mounted on the intermediate shaft, a secondary variable-pitch pulley mounted on an output shaft rotatably supported on the housing in parallel to the intermediate shaft and an endless belt interconnecting the primary and the secondary variable-pitch pulleys.

Abstract: The transmission comprises a hydraulic power transmission device, a V-belt stepless shifter and a planetary gear train. At restart time when the vehicle is at rest with the V-belt stepless shifter in high gear, the hydraulic power transmission device is operated to shift for providing a relatively high torque ratio, rather than the V-belt stepless shifter. A smooth restart is thus made possible. In addition, the planetary gear train permits the shifter smoothly to switch between forward and reverse. Both features meet the transmission needs of all vehicles.

Abstract: A power transmission endless belt formed by connecting in succession a plurality of metal blocks each having at least a through hole or a recess to an endless connecting band formed by connecting a plurality of link plates with pins. The endless connecting band is inserted through the through hole or the recess of the metal block and the metal block is connected to the link plates with a pin or is retained between two pins.