| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474078000 |
Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter
| 130 |
| 474070000 |
Condition responsive (e.g., responsive to speed, load, etc.)
| 16 |
| 474071000 |
Cyclical or sequential (e.g., machine controlled, etc.)
| 7 |
| 474083000 |
Including mechanism for shifting belt axially on spaced pulleys with tapering drive face
| 6 |
| 474073000 |
Including separate belt on each of coaxial pulleys selectively engaged in drive train
| 6 |
| 474072000 |
Including intermeshing gears in one drive train | 3 |
| 20100125015 | DRIVING FORCE TRANSMITTING APPARATUS - 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. | 05-20-2010 |
| 20110160012 | VEHICLE TRANSMISSION HAVING CONTINUOUSLY VARIABLE GEAR RATIOS - 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. | 06-30-2011 |
| 20130281236 | CONTINUOUSLY VARIABLE TRANSMISSION AND WORKING VEHICLE - 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. | 10-24-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20100099526 | Belt type continuously variable transmission - A belt type continuously variable transmission includes a primary shaft and a secondary shaft, wherein the primary shaft is supported on a case via a first rolling element bearing, and the secondary shaft is supported on the case via a second rolling element bearing, the case is formed with a bolt hole at each of an even number of locations in a region separate from a shaft center plane, which is a plane that passes through a shaft center of the primary shaft and a shaft center of the secondary shaft, and first and second stopper plates that each hold down outer races of the first and second rolling element bearings are fixed to the case by bolts mounted in the bolt holes. | 04-22-2010 |
| 20100203990 | Continuously Variable Transmission - A continuously variable transmission comprises an input shaft and an output shaft, a drive wheel, a toothed wheel or a chain wheel, an endless sleeve, a ring wheel, at least one linking member, wedge teeth or a chain, wherein the drive wheel is provided with an annular recess in which a plurality of reversal wedge teeth run, and the wedge teeth are connected with a head portion of the linking member connected with the ring wheel, the spread of axles between the drive wheel and the ring wheel is adjusted via the swinging of the endless sleeve; and with the aid of the locking and releasing operations of the wedge teeth, the linking members are urged to drive the ring wheel, whereby changing the input and output transmission ratio. The continuously variable transmission can be used in a bicycle, wherein the spread of axles between the ring wheel and the drive wheel can be adjusted by regulating a wire, and the magnitude of speed variation is not restricted, the variation range is large, and the power could be synchronously input during the speed variation. | 08-12-2010 |
| 20110183793 | Pedal Driven Apparatus Having a Motor - A hybrid bicycle is provided which is manually propelled, but may include a motor unit for assisting forward propulsion of the bicycle. The bicycle has a control system for providing a control input for another component of the bicycle. Where that component comprises the motor, the control input is for increasing drive power applied by the motor unit to said bicycle. Where the component is a continuously variable transmission (CVT) for the bicycle, the control input is for continuously varying the gearing ratio of the CVT. Located adjacent a drive sprocket is a moveable plate member. The plate member and the drive sprocket are mounted for rotation about an axis of rotation of a pedal spindle, although the sprocket is not fixed for rotation with the pedal spindle. The drive sprocket is loosely coupled to the plate member with the plate member being moveable relative to the sprocket by a limited distance in a rotational direction. The plate member acts on a lever mechanism when it is moved relative to said drive sprocket such that any movement of the plate member results in an axial movement of an actuator member which triggers the control system to generate the control input in response to the amount of any movement of the plate member relative to the sprocket. | 07-28-2011 |
| 20120100945 | POWER TRANSMISSION MECHANISM - The present power transmission mechanism comprises: a first rotation member mounted integrally rotatably on the rotation shaft of a drive apparatus; a second rotation member rotatable integrally with or relative to the first rotation member; an elastic member interposed between the first and second rotation members which, when the first and second rotation members rotate relative to each other, absorbs a rotation difference between them; and, a switching portion which includes a mass member mounted on one of the first and second rotation members and rotatable integrally therewith, and an energizing member for energizing the mass member in a direction where it can be contacted with the other of the first and second rotation members. In the switching portion, when the number of rotations of the rotation shaft is a given number of rotations or less, the mass member is contacted with the other rotation member due to the energizing force of the energizing member to generate a frictional force between their contacted surfaces, thereby preventing the relative rotation between the first and second rotation members. And, when the number of rotations of the rotation shaft exceeds a given number of rotations, due to a centrifugal force generated from the rotation of the rotation shaft, the mass member is shifted against the energizing force of the energizing member and is separated from the other rotation member, thereby allowing the relative rotation between the first and second rotation members through the elastic member. | 04-26-2012 |
| 20120252612 | DEVICE AND METHOD FOR CONTROLLING A BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR A VEHICLE - A vehicle belt-type continuously variable transmission expands the operating range in which belt slip control is permitted with maintained estimated accuracy of a belt slip condition, to reduce drive energy consumption owing to a reduction in belt friction. It includes a primary pulley and a secondary pulley around which a belt is wound to control gear ratio by controlling primary and secondary hydraulic pressures, a belt slip control means for controlling secondary hydraulic pressure according to a phase difference between oscillation components due to oscillation included in an actual gear ratio and in an actual secondary hydraulic pressure, and a transmission speed limiting means for determining whether or not to limit vehicle acceleration according to a predetermined acceleration limit permitting condition and limiting a transmission speed to less than a predetermined value when determining to limit the vehicle acceleration. | 10-04-2012 |
| 20120258825 | DEVICE AND METHOD FOR CONTROLLING A BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR A VEHICLE - A vehicle belt-type continuously variable transmission expands the operating range in which belt slip control is permitted with maintained estimated accuracy of a belt slip condition, to reduce drive energy consumption owing to a reduction in belt friction. It includes a primary pulley and a secondary pulley around which a belt is wound to generate a belt clamping force according to an input torque from an engine by controlling a secondary hydraulic pressure, a belt slip control means for controlling the secondary hydraulic pressure according to a phase difference between oscillation components due to oscillation included in an actual gear ratio and in an actual secondary hydraulic pressure, and an input torque change speed limiting means for determining whether or not to limit vehicle acceleration according to a predetermined acceleration limit permitting condition and limiting the change speed of the input torque to less than a predetermined value when determining to limit the vehicle acceleration. | 10-11-2012 |
| 20130130850 | Accessory Drive and Engine Restarting - A method for controlling a drive system includes driveably connecting an engine to a variator, using a pulley to transmit rotating power from an electric machine through a gearset that increases speed of an input of the variator relative to a speed of the pulley, controlling a speed ratio of the variator, and transmitting power through the gearset and variator to the engine. | 05-23-2013 |
| 20130316862 | CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM - A continuously variable transmission (CVT) system, which turns the rear wheels of a lawn mower or similar vehicle at different speeds in a coordinated method with the front steering wheels in order to achieve the best turning radius (including a tight or zero turn radius, if desired) under most conditions. The system comprises two stages: the first stage comprising a Fixed Center Distance CVT pulley system, and the second stage comprising dual CVTs (e.g., left and right) that input into dual gear reducers (left and right), which are mechanically connected to the rear wheels. The second stage dual CVTs (left and right) are synchronized with the steering wheel, thus achieving different rear wheel speeds and/or directions based on the steering wheel position. | 11-28-2013 |
| 20140171239 | Transmission Wheel System Series with Periodically Varied Speed Ratio and Having Reciprocally Displacing Auxiliary Pulley for Storing/Releasing Kinetic Energy - The present invention is to installed a unidirectional transmission at the active side, so when a transmission belt is tightened while the active pulley driving a passive pulley in periodically varied speed ratios, meanwhile an auxiliary pulley ( | 06-19-2014 |
| 20140248982 | MECHANISM FOR TRANSMITTING A ROTARY MOVEMENT WITH VARIABLE TRANSMISSION RATIO - A control mechanism ( | 09-04-2014 |
| 20140296008 | DRIVING DEVICE AND AN ELECTRIC MOTORCYCLE DRIVING SYSTEM USING THE DRIVING DEVICE - The present invention provides a driving device and an electric motorcycle driving system using the driving device. Said driving device comprises a shaft, a pulley disk assembly configured on the shaft, and a motor. The motor is an outer rotor or inner rotor motor. One pulley disk of the pulley disk assembly is connected to one end of the outer rotor sleeve or the inner rotor of the motor, so it can be driven by the outer rotor sleeve or the inner rotor and rotate or move around the shaft; furthermore, an electric motorcycle driving system can use the driving device to connect with a battery and a stepless speed change mechanism, so as to use the electric power of the battery to operate the stepless speed change mechanism, and to consequently enhance the performance of speed and torque output of the electric motorcycles. | 10-02-2014 |
| 20140323253 | Gearing System and Method of Use - Embodiments include a gear shifting system that eliminates the use of a derailleur and is capable of integrating with existing controls on the bike. | 10-30-2014 |
| 20150024883 | Contoured Radius Continuously Variable Transmission - A Contoured Radius Continuously Variable Transmission (CRCVT) varies the torque and speed of an output component relative to the torque and speed of the input component by forming the contour of a belt-like component so that the belt-like component's radial distance from the input and/or output axis is gradually altered from being uniform throughout its length to being varied for different periods along its length. | 01-22-2015 |
| 20160047445 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission (CVT) includes an input arrangement associated with an input shaft and an output arrangement associated with an output shaft. An input sprocket and an output sprocket are connected via a chain. An input cone member is connected to the input shaft, disposed within a central opening of the input sprocket, and frictionally engages an inner periphery of the input sprocket such that rotation of the input cone causes the input sprocket to rotate. An output cone member is connected to the output shaft, disposed within a central opening of the output sprocket, and frictionally engages an inner periphery of the output sprocket such that rotation of the output sprocket causes rotation of the output cone member. | 02-18-2016 |
| 20160107723 | DERAILLEUR - A derailleur includes a fixed component, a movable component, a linkage component, a deceleration component and a drive component. The fixed component is for being fixed to a bicycle frame. The movable component is for being fixed to a chain guide. The linkage component includes a first linkage and a second linkage. Two ends of the first linkage pivot on the fixed component and the movable component, respectively. Two ends of the second linkage pivot on the fixed component and the movable component, respectively. The deceleration component includes a circular spline, a flex spline and a wave generator. The flex spline is disposed inside the circular spline, for rotating the first linkage and the second linkage relative to the fixed component. The wave generator is disposed inside the flex spline. The drive component is connected to the wave generator, for rotating the wave generator. | 04-21-2016 |
| 20160123437 | CONE WITH MEMBER CVT FOR WHICH BELT TENSION CAN BE REDUCED | 05-05-2016 |
| 20160167742 | Support Assembly for a Bicycle Front Derailleur | 06-16-2016 |
| 20160169363 | KEY PULLEY SEGMENT FEATURES, SEGMENT STACK CONFIGURATION, AND CAM AND ROLLER DESIGN AND ACTUATION IN A SYNCHRONIZED SEGMENTALLY INTERCHANGING PULLEY TRANSMISSION SYSTEM | 06-16-2016 |
| 20160176478 | Bicycle Rear Derailleur with a Damper Assembly | 06-23-2016 |
