Abstract: Herein disclosed is a V-belt transmission device in which a plurality of substantially V-shaped metal members (2) and a plurality of resilient metal members (3) are alternately mounted to an endless metal belt member made of band steel and are in contact with each other to constitute a V-belt which is subjected to a tension between a driving V-pulley (5) and a driven V-pulley (6), thereby effecting a torque transmission between both the pulleys. Each of the V-shaped metal members (2) is provided with a substantially U-shaped groove (7) directed to the outside. Each of the resilient metal members is formed as a hollow roller to engage with recessed surfaces (8) which are formed in opposing surfaces of a pair of the V-shaped metal members (2). The V-shaped metal members (2) and the resilient metal members are fastened together at their outer peripheries by the metal belt member.

Abstract: A V-belt transmission is provided which comprises two pulleys, an endless metallic V-belt operatively positioned between the two pulleys, a plurality of V-shaped members positioned with the V-belt located between the arms of the V and a stopper member for engaging the V-shaped member to prevent the V-shaped member from coming off of the V-belt. The V-shaped member includes grooves in a wall of the arms of the V at a position below or inside the plane of the inner surface of the V-belt. Further, the stopper member includes a middle portion which is positioned above or outside the plane of the outer surface of the V-belt and end portions for engaging the grooves at a point below or inside the plane of the inner surface of the V-belt. The groove in the V-shaped member is located on the outside of the arms of the V and has a first portion which extends in the lengthwise direction of the V-belt and a second portion which extends perpendicular to the surface of the V-belt.

Abstract: An interlocking driving belt wrapped around a toothed driving wheel and a toothed driven wheel to transmit power from the former wheel to the latter wheel, comprising a plurality of toothed blocks having tooth-shaped portions capable of being meshed with tooth spaces on outer circumferential surfaces of both of the wheels, a plurality of rollers held rotatably among the toothed blocks, a flat endless belt member wrapped tightly around outer circumferential surfaces of the rollers, stopper plates fixed to the toothed blocks, each of which stopper plates contacts one of two adjacent toothed blocks to retain these two toothed blocks in predetermined positions, and roller-receiving recesses provided in both of side surfaces of the toothed blocks to hold adjacent rollers therein. This interlocking belt can be made in small dimensions and weight at a low cost and can be suitably used to transmit high torque at a high speed under both the dry and wet conditions.

Abstract: A transmission for a motor vehicle comprises an input shaft connected to the crank shaft of an engine, an output shaft connected to a driving wheel, a V-belt stepless variable speed gear provided between the input and output shafts for providing different gear ratios of the input and output shafts on a stepless basis, and an interlocking transmission gear provided between the input and output shafts parallel to the stepless variable speed gear which, when operated, provides a constant gear ratio of the input and output shafts. A hydraulically operated first clutch of a normally-closed type is provided on the input shaft for operating the stepless variable speed gear when it is connected, and a hydraulically operated second clutch of a normally open type is provided on the output shaft for operating the interlocking transmission gear when it is connected.

Abstract: A V-belt assembly for use in a V-belt transmission is provided. The V-belt assembly comprises an endless belt having a plurality of endless layers wherein the thickness of each of the layers is less than the thickness of the adjacent outer layer. The V-belt assembly also includes a plurality of V-shaped members, each V-shaped member having a belt engaging surface and a plurality of intermediate members disposed between adjacent V-shaped members.

Abstract: A link-type V-belt of relatively inflexible material including a first link having bifurcate ends and a second link having single ends which are pinned together by multiple pins in alternating fashion. Two pins are employed at each intersection between links and are semicylindrical for rolling contact between pins and for pivotal movement with the associated link. Broad transmission faces are associated with each link in inclined arrangement for conforming to a V-grooved pulley. Lubricant relief passages aid in the power transmission of the pulley by allowing lubricants to flow from the transmission faces of the belt. At the same time, the belt may be lubricated to further reduce internal frictions and sliding friction on associated pulleys. Informing the link having bifurcate ends, two link members may be positioned together with a spacer therebetween. Pins are calked in place to retain both the pin in position and the link members together.

Abstract: A control mechanism for a transmission of a vehicle having an internal combustion engine. The transmission includes a torque convertor, a coupling member, a gear-train, and an operation lever having a neutral position and at least three other positions. The torque convertor, the gear-train, and the coupling member are interposed in a system line for transmitting output torque of the engine to a driving wheel of the vehicle. The operation lever is arranged to operate the coupling member to connect the torque convertor to the gear-train by being moved from the neutral position to one of the other positions. The control mechanism includes a coupling-preventing mechanism operatively associated with the coupling member for preventing coupling when a throttle valve of the engine is in an idling position and the operation lever is moved from the neutral position to one of the other positions.

Abstract: A V-belt assembly is provided which comprises an endless metallic belt and a plurality of V-shaped members disposed along the belt in the longitudinal direction of the belt. Each of the V-shaped members has a groove with a belt engaging surface at the bottom of the groove facing the belt. The V-shaped members also include pulley engaging surfaces for engaging the surfaces of pulleys in the transmission. A plurality of intermediate members are interposed between adjacent V-shaped members on the inside of the belt. The intermediate members are held between corresponding adjacent V-shaped members by intermediate member engaging surfaces of the V-shaped members. The intermediate members are movable towards and away from the belt along the intermediate member engaging surfaces. The side surfaces of the groove can be formed with a surface corresponding to the shape of the edge surface of the endless belt.

Abstract: A hydraulic torque converter which comprises a pump wheel having an engine output shaft coupled thereto, and a turbine wheel having a turbine output shaft connected thereto, wherein the turbine wheel is coupled to the pump wheel through a fluid coupling for the transmission of power therebetween. A one-way clutch and an on-off clutch are connected in series, the serially connected clutches being connected between the pump wheel and the turbine wheel. When the on-off clutch is engaged and the one-way clutch is engaged, the turbine wheel is mechanically coupled to the pump wheel for the transmission of power thereto.

Abstract: A transmission apparatus for a vehicle comprising a casing, an input shaft, an output shaft parallel to the input shaft having at least four gear trains interposed between the two shafts through respective clutches, at least one of the respective clutches being an in-common clutch used in common to two of the at least four gear trains, and at least one selection mechanism provided separately from the common clutch. The two gear trains are those differentiated in change speed stage one from another by three stages. The two gear trains are arranged so that in the case of power transmission through any selected gear train other than the two gear trains, such one of the two gear trains that has a change speed stage nearer the change speed stage of the selected gear train has been selected by the selection mechanism.

Abstract: A control system is provided for the operation of a fluid torque converter for vehicles comprising a pump wheel connected to an engine output shaft, and a turbine wheel connected to a turbine shaft which is coupled to a driving wheel. A fluid transmits power between the pump wheel and the turbine wheel and a one-way clutch is provided between the engine output shaft and turbine shaft for connecting and disconnecting these shafts to and from each other. The one-way clutch, when in an engaged state, directly couples the engine output shaft and the turbine shaft to transmit power solely from the engine output shaft to the turbine shaft. The one-way clutch is provided with a load capacity control unit adapted to vary the load capacity thereof when the one-way clutch is in an engaged state.

Abstract: A fluid torque converter comprising a pump wheel connected to a driving power source, a turbine wheel connected to a driven member, the pump wheel and turbine wheel being connected to each other via a working fluid, and a one-way clutch of on-off type provided between the pump wheel and turbine wheel and adapted to mechanically connect the pump wheel and turbine wheel together when the one-way clutch is in a coupled state. The one-way clutch has a driving clutch member connected to the pump wheel and provided with a first conical surface, and a driven clutch member connected to the turbine wheel and provided with a second conical surface in opposed and parallel relation to the first conical surface. A plurality of elastic wedge rollers are provided between the first and second conical surfaces in a circumferentially spaced relation.

Abstract: An automatic transmission apparatus in which a machine casing is provided on one side thereof with an input shaft connected to an internal combustion engine and with a torque convertor connected to the input shaft and is provided at the interior thereof with an output shaft in parallel with the input shaft. The input shaft and the output shaft are interconnected through a high-speed transmission system having a high-speed clutch and a low-speed transmission system having a low-speed clutch. The input shaft is elongated to within the machine casing so as to form a first driving shaft of direct coupled type integrally connected to the input shaft and is provided at its elongated end portion with the high-speed clutch. A tubular form of second driving shaft is connected to the output side of the torque convertor and extends along the first driving shaft and is substantially concentric therewith. The low-speed clutch is interposed between an input side portion and an output side portion of the tubular shaft.

Abstract: In an automatic transmission apparatus for a vehicle of the type having a high speed clutch of oil pressure operated type interposed in a high speed power transmission system and a low speed clutch of oil pressure operated type interposed in a low speed power transmission system, the clutches being selectively connected through a shift valve to an oil pressure source, a safety apparatus comprising an automatic control valve coupled to the said low speed clutch to operate when the low speed clutch rotates above a predetermined speed to bring the low speed clutch into inoperative condition.

Abstract: A control apparatus for motorcars having an automatic transmission with a speed-change sensor and a shift valve therein, for controlling the operation of the latter, the apparatus comprising oil-pressure operated high-speed and low-speed clutches interposed in respective high-speed and low-speed systems of the transmission, the system being selectively connectable through the shift valve to a line pressure supply passage connected to an oil-pressure source, wherein the shift valve is operable by the oil pressure and has at one end an oil-pressure chamber connectable to the supply passage through an electromagnetic pilot valve that is responsive to the sensor. Preferably a manually operable valve is interposed between the supply passage and the oil-pressure source, for selectively operating the oil-pressure controlled shift valve in one of a plurality of operational modes of the transmission.

Abstract: Apparatus for preventing faulty operation in automatic transmissions of motorcars, the transmission having a speed-change sensor and a shift valve therein, for controlling the operation of the latter, the apparatus comprising oil-pressure operated high-speed and low-speed clutches interposed in respective high-speed and low-speed systems of the transmission, the system being selectively connectable through the shift valve to a main line pressure circuit connected to an oil-pressure source, wherein the shift valve is operable by the oil pressure and has at one end an oil-pressure chamber connectable to the main circuit through a pilot valve that can be opened by operation of the sensor.