Abstract: The present disclosure relates to a drive belt tensioning system that comprises drive assembly detachably attached with mounting bracket. The drive assembly comprises assembly plate, driving mechanism rigidly affixed to the assembly plate, and driving pulley shaft protruding through assembly plate. First axis of rotation of the driving mechanism perpendicular to the assembly plate defines center of rotation of the drive assembly. The driving pulley shaft is positioned at first radial distance from the center of rotation of the drive assembly. The mounting bracket defines shaft aperture sized to receive the driving mechanism and radial driving pulley slot that extending circumferentially around a portion of the shaft aperture and sized to receive the driving pulley shaft. An application of torque causes arcuate motion of the driving pulley shaft in the radial driving pulley slot such that distance between the driven pulley and the driving pulley is altered.

Abstract: A power transmission system of a vehicle may include a CVT device having primary and secondary pulleys, a planetary gear set having first, second, and third elements, a first shaft connected to an engine and fixed to primary pulley, a second shaft fixed to secondary pulley, a third shaft fixed to first element, a fourth shaft fixed to second element and selectively connectable to first shaft and a transmission housing, a fifth shaft fixed to third element, a sixth shaft externally gear-meshed with second shaft, and a seventh shaft externally gear-meshed with third shaft and selectively connectable to sixth shaft, wherein first shaft is coaxially superposed with third, fourth, and fifth shafts, second, sixth, and seventh shafts are disposed in parallel with planetary gear set, and second, fifth, and sixth shafts, third and seventh shafts, and seventh shaft and a differential communicate torque through first, second, and third gear sets.

Abstract: A drivetrain for connection between the output of a prime mover and the input of a final drive is described herein. The drivetrain comprises a CVT including an input connected to the output of the prime mover and an output; a power mixer having a first input connected to the output of the prime mover, a second input coupled to the output disk of the CVT and an output; a three-speed transmission having an input connected to the output of the power mixer and an output connected to the input of the final drive.

Abstract: A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, a first coupling member, a first guide structure, a switching device, and a transmission controller. The switching device is configured to switch a position of the first transmission member relative to the base member in an axial direction between a first axial position and a second axial position. The transmission controller is configured to control the switching device and the first guide structure so as not to change a first engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among first cogwheels when the first transmission member moves relative to the base member in association with a movement of the first guide structure relative to the base member to change a second engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among second cogwheels.

Abstract: An automatic transmission for an electric vehicle includes: a belt type continuously variable transmission mechanism; a constantly meshed parallel shaft type gear transmission mechanism which is connected to an output portion of the belt type continuously variable transmission mechanism, and which has a plurality of shift stages; an input gear which is disposed to the input shaft to be rotated relative to the input shaft, and which is drivingly connected to one of a plurality of shift gears fixed to an output side shaft of the constantly meshed parallel shaft type gear transmission mechanism; and an engaging clutch mechanism which is disposed to the input shaft, and which selectively connects one of the input portion of the belt type continuously variable transmission mechanism and the input gear to the main electric motor.

Abstract: A vehicle transmission having continuously variable transmission ratios including an input shaft and an intermediate shaft. A first conical disk pair is disposed on a first shaft and a second conical disk pair is disposed on a second shaft. A belt connects the disk pairs. An intermediate gear that can be rotatably engaged with the first shaft, and an output gear, are rotatably supported on the intermediate shaft. A connecting gear is non-rotatably disposed on the intermediate shaft. A first force transmitting device is disposed between the input shaft and intermediate shaft, a second force transmitting device is disposed between the input shaft and the intermediate gear, a third force transmitting device is disposed between the intermediate gear and output gear, and a fourth force transmitting device is disposed between the intermediate shaft and the output gear. At least one of the force transmitting devices is a freewheel.

Abstract: A belt type variable speed-change mechanism transmitting a rotational power from a driving shaft to a driven shaft in a continuously variable manner and a constant-speed power-transmitting mechanism transmitting a rotational power at a constant-speed from the driving shaft to a constant-speed driven-side rotational body supported by the driven shaft in a relatively rotatable manner with respect thereto are accommodated in a casing. A planetary gear mechanism including a first element receiving a variable-speed rotational power through the driven shaft, a second element receiving a constant-speed rotational power through the constant-speed driven-side rotational body and a third element outputting a combined rotational power is supported by the driven shaft in the casing.

Abstract: A transmission device for a cycle, such as a bicycle, which includes a bottom bracket fixed relative to the remainder of the cycle frame.

Abstract: A hybrid powertrain for a vehicle is provided with a motor/generator for providing torque to a final drive input member. The powertrain includes an engine, a transmission having a transmission input member configured to receive power from the engine and a transmission output member. The powertrain further includes a final drive arrangement that has a final drive input member, and a motor/generator that has a motor shaft operatively connected to the final drive input member downstream of the transmission gearing arrangement. A drive system may operatively connect the transmission output member and the motor shaft to the final drive input member. A method of assembling a hybrid powertrain is also provided.

Abstract: A vehicle transmission having continuously variable transmission ratios including an input shaft and an intermediate shaft. A first conical disk pair is disposed on a first shaft and a second conical disk pair is disposed on a second shaft. A belt connects the disk pairs. An intermediate gear that can be rotatably engaged with the first shaft, and an output gear, are rotatably supported on the intermediate shaft. A connecting gear is non-rotatably disposed on the intermediate shaft. A first force transmitting device is disposed between the input shaft and intermediate shaft, a second force transmitting device is disposed between the input shaft and the intermediate gear, a third force transmitting device is disposed between the intermediate gear and output gear, and a fourth force transmitting device is disposed between the intermediate shaft and the output gear. At least one of the force transmitting devices is a freewheel.

Abstract: The present invention relates to a stepless variable transmission device with parallel low gear wheel group, which is the first case that a low gear transmission wheel group equipped with a one-way transmission unit, which transmits with fixed speed ratio in same rotary direction, is installed between the input shaft and the output shaft of a stepless variable transmission device; and which is installed with the clutch device 212 with angular displacement difference and/or the clutch device 222 for eliminating the vibration produced by the hetero-shaft type stepless variable transmission device 100 and the low gear transmission wheel group 102, the both do not operate with fully same speed ratio, for overloaded transmission.

Abstract: A dual-ratchet wheel transmission apparatus includes: a drive wheel set, having a first drive wheel and a second drive wheel coaxially integrated with a drive shaft; a driven wheel set, being coaxially set with a driven shaft in which the driven shaft is connected to an output for transmission, the driven wheel set including: a first driven wheel being centrally integrated with a unidirectional ratchet wheel, in which the first driven wheel engages with the first drive wheel for transmission, a second driven wheel being centrally integrated with another unidirectional ratchet wheel, in which the second driven wheel is connected to the second drive wheel via a transmission element. By the aforementioned configuration, whether the drive wheel set rotates forward or backward, the transmission set rotates in only one direction.

Abstract: A drive transmission apparatus for transmitting a driving force to a rotatable member includes a driving source; a drive pulley for receiving a driving force from the driving source; a driven pulley; a belt, extending around the drive pulley and the driven pulley, for transmitting the driving force from the drive pulley to the driven pulley; a driving gear for receiving a driving force from the driving source; a driven gear for receiving the driving force of the driving gear; a drive transmitting shaft, provided with the driven pulley and the driven gear, for transmitting the driving force to the rotatable member; a drive transmission mechanism, provided between the driven gear and the drive transmitting shaft, for transmitting the driving force in a rotational direction from the driven gear to the drive transmitting shaft when an angular speed of the driven pulley is lower than an angular speed of the driven gear.

Abstract: A power transmission comprises a belt type continuously variable ratio-change mechanism CVT and a fixed ratio rotational transmission mechanism GT, which transmit the rotational driving force of a primary shaft 1 rotationally driven by an engine to a countershaft 3 with a speed ratio change. The continuously variable ratio-change mechanism comprises a drive pulley 10, a driven pulley 15 and a metal belt 14 while the fixed ratio rotational transmission mechanism GT comprises a forward drive gear train, a forward output transmission gear train, and a reverse drive gear train. The forward drive gear train transmits the rotation of an input drive gear 31 on the primary shaft 1 through an idler gear 32 to a LOW driven gear 33 on a secondary shaft 2, and the forward output transmission gear train transmits the rotation of the secondary shaft 2 to the countershaft 3.

Abstract: A belt damper for a gear train is provided. An endless belt is wrapped around pulleys mounted to an idler gear and an output gear. The pulleys are mounted to splined shafts which are axially aligned with and connected to splined gear shafts on which the idler and output gears are mounted. Pressurized lubricant is supplied to both splined connections. The combination of the lubricant in the spline connections and the damping effect of the belt provides for an effective damping system. A tension device may also be applied to vary tension imposed on the belt.

Abstract: A continuously variable transmission including two pairs of conical disks of which one disk of each pair is axially movable toward and away from the other disk and having an endless loop member in the form of a belt that passes around each pair of disks and transfers torque between the pairs of disks. The axially movable conical disk includes a contact pressure chamber to move the disk axially by the application of hydraulic pressure. The movable disk also includes an integrated torque sensor that is operative for controlling the contact pressure between the disks of a pair of disks and the endless loop member as a function of the torque.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, and a reverse brake.

Abstract: A pulley assembly for a driven shaft is disclosed. The pulley assembly includes a pulley to which a turning force is transferred from a driving unit; a sleeve fixedly mounted to a casing of the driven unit through which the driven shaft passes with a clearance between an outer periphery of the driven shaft and an inner periphery of the sleeve; a bearing structure for bearing the pulley rotatably about an axis of the driven shaft, the bearing structure being disposed between the pulley and the sleeve; and a torque transferring structure for transferring the turning force transferred to the pulley to the driven shaft, the torque transferring structure being interposed between the pulley and the driven shaft.

Abstract: An infinitely variable transmission is capable of operating between a maximum speed in one direction and a minimum speed in an opposite direction, including a zero output angular velocity, while being supplied with energy at a constant angular velocity. Input energy is divided between a first power path carrying an orbital set of elements and a second path that includes a variable speed adjustment mechanism. The second power path also connects with the orbital set of elements in such a way as to vary the rate of angular rotation thereof. The combined effects of power from the first and second power paths are combined and delivered to an output element by the orbital element set. The transmission can be designed to operate over a preselected ratio of forward to reverse output speeds.

Abstract: A speed change control mechanism including a motor for power output, a main shaft, a belt transmission mechanism driven by the motor to turn the main shaft, a gear box disposed at one side of the main shaft, the gear box comprising a gear shaft, a small gear slidably mounted around the gear shaft and stopped from rotary motion relative to the gear shaft, the small gear being moved into engagement with a big gear which is fixedly mounted around the main shaft, wherein a bearing means is fixedly secured to the small gear, a rack is fixedly mounted on the bearing means and meshed with a toothed shaft, the toothed shaft being rotated to move the small gear between the operative position, in which the small gear is engaged with the big gear of the main shaft for permitting the output power of the motor to be transmitted through the gear box to the main shaft for a low-speed milling operation, and the non-operative position, in which the small gear is disengaged from the big gear of the main shaft for permitting th

Abstract: According to an illustrative example of the present invention, an internal combustion engine is provided with a gear box. This gear box is driven by an end portion of the crank shaft. A belt pulley is provided around the axis of the gearbox. The belt pulley drives through a belt an electric power generator. The gear box contains a planetary gear of variable transmission ratio. The change of transmission ratio is effected by an hydraulically operated clutch. The hydraulically operated clutch is actuated by a hydraulic actuating device. The hydraulic actuating device is actuated by oil pressure. The oil pressure is obtained by a hydraulic pump integrated into the gear box. Further components of the circuitry containing the pump and the hydraulic actuating device are provided outside the gear box. These external components are carried by a carrier plate. This carrier plate contains side by side channels of the hydraulic circuitry.

Abstract: A speed-variating means especially for a bike includes an eccentric wheel rotatably driven by a dringing wheel such as a chain wheel of a bike, the eccentric wheel having its first side portion coupled with a rotating disk rotatably mounted on an axle and connected with a hub and an output wheel such as a bike rear wheel and having a second side portion of the eccentric wheel rotatably held in a stationary disk secured to a retaining bowl fixed on the axle of the output wheel, and a variable speed adjusting device operatively moving the eccentric wheel to cling a center of the eccentric wheel with an axis of the axle, or eccentrically moving the eccentric wheel to and from the axis, so that a broader speed variation ratio can be effected by comparing a smaller eccentric radius of the eccentric wheel (wheel center) about the axle axis with a larger eccentric radius of the eccentric wheel about the axle axis.

Abstract: A speed-variating device especially for a bike includes a first disk secured to a chain wheel having an integral gear formed on a cylindrical flange thereof, a second disk having at least a planet pinion pivotally formed annularly on the second disk engageable with the internal gear, a central eccentric wheel carrying either disk eccentrically about an axle of a bike wheel, a sun gear rotatably mounted on the axle engageable with the planet pinion and having a ratchet gear forwardly driving the bike wheel for forwardly running of the bike, so that a homogeneous wide speed variation can be effected by a first speed variation from the first disk to the eccentric wheel and a second speed variation from the eccentric wheel to the second disk and by a further speed variation by a planetary gear train comprised of the internal gear, the planet pinion and the sun gear for a wider speed variation.

Abstract: A control system for a hybrid transmission of a motor vehicle comprises a vehicle speed sensor and a control unit. In the control unit, a deceleration is calculated. When the deceleration is greater than the predetermined deceleration value under a condition where the vehicle speed is less than a predetermined vehicle speed value, a switch is effected from a torque delivery path through a continuously variable transmission mechanism to a torque delivery path through a gearing mechanism. Thus, there occurs no slip between a V-belt and a driver pulley in the continuously variable mechanism upon acceleration immediately after rapid deceleration.

Abstract: This invention relates to a unique transmission system for applying torque from an engine flywheel to the drive train of an automotive vehicle including a long travel viscous damped torsional damper driven by the flywheel and coupled to a continuously variable transmission which in turn is coupled to a wet drive clutch, the output of which is connected to an output counter shaft for the automotive drive train. An important part of the unique combination is the long travel viscous damped torsional damper of the invention which includes an enclosed, effectively sealed housing contains input and output members coupled through a plurality of series parallel spring sets and immersed in a viscous medium to provide effective viscous damping matched to the effective spring rate of the mechanical damping system to accommodate both transient and steady-state vibrational torques. The damper is especially useful with the continuously variable transmission but is useful in other applications as well.

Abstract: A transmission, in particular for a motor vehicle, provided with an input shaft which, through a drive-away clutch, drives the primary shaft of an infinitely variable V-belt transmission.The secondary shaft of said V-belt transmission is connected with the output shaft of the transmission, whereby the input shaft and the primary shaft are disposed mutually in parallel but not coaxially, and that the primary shaft is driven by the input shaft through a reduction gear.

Abstract: An adjustable speed automatic transmission includes a variable speed pulley mechanism, a fixed speed ratio drive mechanism and a plurality of clutches in combination. The clutches are selectively engaged to control ouput speed in a low speed range by coupling the variable speed pulley mechanism and the fixed speed ratio drive mehcanism between an input and an output shaft. Alternatively, in a high speed range the clutches are selectively engaged to drive the output shaft directly from the input shaft.

Abstract: A belt type continuous reduction gear mechanism, in which a V-belt is made to run under tension between drive and driven V-pulleys each equipped with a fixed pulley half and a movable pulley half made movable back and forth relative to the fixed half for adjusting an effective radius. The drive and driven V-pulleys are equipped with actuators for moving the respective pulley halves thereof back and forth. There is interposed between the actuators a coaction mechanism for effecting the coactions of the same.

Abstract: A drive mechanism especially useful in assemblage with a harmonic drive transmission for providing a desired rotational input to the wave generator of the harmonic drive transmission, and allows for a wide speed range selection while minimizing component wear, instability, and heat generation problems. Such a harmonic drive assembly is particularly useful in powering a controlled infeed or chill stand in a printing press and permits the precise adjustment of the tension of the continuous paper web moving through such a press. The drive mechanism supplies rotational movement from the input shaft of the harmonic drive transmission to the wave generator tuner shaft and includes pulley means operatively coupled to the input shaft, an arm assembly mounted for pivotal movement about the tuner shaft, and a positioning mechanism for precisely pivoting the arm assembly as desired.

Abstract: A transmission, in particular for a motor vehicle, provided with an infinitely variable V-belt transmission having a primary and a secondary pulley over which the V-belt has been looped and provided with an input shaft, which is connected through a reversing gear to the primary pulley. The reversing gear being operated by means of a forward and a reverse command, respectively, in such a way as to transmit the same or the opposite direction of rotation. The primary pulley of said transmission is connected to an annular channel radially closed from the outside and into which a stationary pitot tube terminates for picking up a hydraulic signal depending on the speed of rotation, whereby the incorporation of means of control which prevent the reverse signal putting into operation the reversing gear, depending on the hydraulic signal.

Abstract: A continuously variable transmission comprising driving and driven pulleys and a V-belt interconnecting these pulleys. A forward gear is rotatably mounted on a driven shaft and a multiple disc friction clutch is mounted within the driven pulley and operative to connect the driven pulley to the forward gear.

Abstract: A working fluid distributing system for a continuously-variable speed automatic transmission comprising a fluid coupling; a belt drive continuously-variable speed transmission means including a primary variable-pitch pulley, a secondary variable-pitch pulley and an endless belt interconnecting the primary and the secondary variable-pitch pulleys and capable of attaining continuously-variable speed drive; a change-direction gear train; and a hydraulic control circuit for supplying the working fluid to the component brakes and clutches.The working fluid distributing system further comprises a supporting collar attached to the wall portion of the housing of the automatic transmission, which wall portion being disposed perpendicularly to the input shaft of the belt drive transmission means. The supporting collar rotatably supports, on the outer surface thereof, the pump impeller of the fluid coupling and, on the inner surface thereof, the input shaft.

Abstract: A continuously-variable speed automatic transmission, comprising a fluid coupling, a belt drive transmission means including a primary variable-pitch pulley, a secondary variable-pitch pulley and a belt interconnecting the primary and the secondary variable-pitch pulley and capable of attaining continuously-variable speed drive, and a change-direction gear train.The primary variable-pitch pulley is mounted on an intermediate shaft which is adapted to be freely rotatable and arranged coaxially with an input shaft connected with the turbine runner of the fluid coupling.The secondary variable-pitch pulley is mounted on the output shaft of the transmission, which is supported on the housing of the transmission rotatably and in parallel with the intermediate shaft.The change-direction gear train is connected at the input end thereof with the input shaft and at the output end thereof with the intermediate shaft.

Abstract: A motor vehicle transmission unit provided with an automatic variable ratio transmission mechanism and a supplementary fixed ratio transmission mechanism which transmits torque from an input shaft to an output shaft of the unit in conditions of low speed and high torque. A free wheel clutch allows the variable ratio transmission mechanism to take over the drive when the speed increases, this being accomplished by means of an automatic speed sensitive clutch which engages when the speed of the output shaft reaches a predetermined threshold valve. A torque converter or other progressive coupling device links the input shaft of the unit, via an isolating friction clutch, to the fixed ratio transmission mechanism.

Abstract: A transmission assembly comprising coaxial input and output shafts. A drive sprocket wheel carrying member is secured to and extends radially from the input shaft. A first sprocket wheel is co-axially mounted on the output shaft and a second sprocket wheel is rotatably mounted on the output shaft. A drive sprocket wheel assembly is rotatably mounted on the sprocket wheel carrying member, and each drive sprocket wheel assembly includes a primary and secondary sprocket wheel. For each drive sprocket wheel assembly, a chain extends about the primary sprocket wheel and the first sprocket wheel and a further chain extends about the second sprocket wheel and the second sprocket wheel. The speed of the rotation of the second sprocket wheel is controlled to control the speed of rotation of the output shaft.

Abstract: In combination with a conventional multiple speed bicycle wherein a series of innerconnected sprockets, which connect with the driving chain from the bicycle pedal assembly, are mounted exteriorly of the hub of the driving wheel. These multiple sprockets are part of what is termed as a derailleur mechanism (gear changing mechanism). This derailleur mechanism functions such that the operator can more easily pedal the bicycle at lower speeds and at higher speeds. This derailleur mechanism is only changeable when the bicycle is moving. The second type of gear changing mechanism is to be incorporated with the hub of the driving wheel and is operable primarily when the bicycle is at rest. The second gear changing permits a change of gears when the bicycle is stopped so as to make it easier to accelerate the bicycle from the at-rest position.

Abstract: An input-output force correlated drive system for driving a driven device such as the rear wheel of a bicycle or the like comprising: input force applying apparatus for transmitting input force to and causing operation of the drive system; rotatable output force transfer apparatus operable by the input force applying apparatus for transferring output force to the driven device; and input-output force correlation apparatus being continuously operatively connected to and operable by the input force applying apparatus and being continuously operatively connected to and operating the output force transfer apparatus for variably changing the rotational speed and circumferential location of the output force transfer apparatus relative to the input force applying apparatus during each revolution in accordance with predetermined input-output force correlation characteristics to be provided by the drive system.

Abstract: A variable ratio, or adjustable ratio, mechanical drive mechanism employs a rotatable driving element the effective diameter of which may be changed. The driving element is segmented to permit effective diameter change by an alteration in the relative position of the segments.Alteration is effected by forcing a change in the separation of the axis of driving element and the point of engagement of the driving element with the driven element.