| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074337500 | Cam operated | 17 |
| 20080264191 | Adjusting Device for a Transmission - An adjusting device for a transmission is described. The device has at least one movable adjusting element, a plurality of sensors for detecting a position of the at least one movable adjusting element, which are arranged substantially parallel to one another, and a plurality of cam paths having sections of different heights, assigned to corresponding ones of the plurality of sensors. The device also includes a plurality of scanning elements coupled to the plurality of sensors for mechanically scanning the sections of different height, and at least one catch of each of the plurality of cam paths in which a latching element is engageable, wherein the plurality of sensors and the latching element are designed as a common component. The plurality of cam paths result in comparable stroke movements arising for each of the plurality of scanning elements. | 10-30-2008 |
| 20090266192 | Shift control device for vehicle transmission - A shift control device for a vehicle transmission is provided in which drive means for making a shift drum pivot is connected to the shift drum, wherein the drive means ( | 10-29-2009 |
| 20100071492 | MULTISTAGE TRANSMISSION - A multistage transmission is provided that smoothly operates with a small force without the necessity of a shift clutch, that does not cause a loss of switching time during shifting, and that does not cause escape of a driving force as well as provides a small shift shock. When shift drive means executes upshift to a one-step-upper speed-change stage reduced in reduction ratio by one stage, normal rotation odd-numbered stage cam rods Cao and normal rotation even-numbered stage cam rods Cae alternately operate normal rotation odd-numbered stage engaging members Rao and the normal rotation odd-numbered stage engaging members Rae for shifting. | 03-25-2010 |
| 20100071493 | MULTISTAGE TRANSMISSION - A multistage transmission includes a swing claw member having a pin-receiving portion adapted to receive a pin member and an engaging claw portion on respective sides opposite to each other with respect to swing center, and swung by the advancement and retraction of the pin member to allow the engaging claw portion to establish engagement and release the engagement; and biasing means for biasing the swing claw member in a swing direction of bringing the engaging claw portion into engagement. The biasing means is a compression spring interposed between the inner surface of the engaging claw portion of the swing claw member and the opposing surface of the gear shaft. The multistage transmission uses multiple swing claw members of the same kind, instead of swing claw members of different kinds. | 03-25-2010 |
| 20100107792 | SHIFT MECHANISM, AND VEHICLE EQUIPPED THEREWITH - A shift mechanism that provides a shift mechanism for enabling smooth gear shifting by a transmission, and a vehicle equipped therewith. With this mechanism, a shift drum, to which shift forks are connected via grooves on an outer periphery, is held every predetermined rotation angle. When differences are produced in the degree of rotation between a third rotating member that rotates by motor rotation and a second rotating member that rotates in accordance with the third rotating member, bias is accumulated in a torsion spring. Bias that is accumulated is released when the rotation angle of the third rotating member equals or exceeds a predetermined angle of rotation, rotating a first rotating member via a second rotating member, and rotating the shift drum quickly. | 05-06-2010 |
| 20110011193 | MULTI-STAGE TRANSMISSION - Disclosed is a constantly-meshing-type multi-stage transmission which can be operated with small forces, does not need a clutch for gear shift, has no loss of changeover time at the time of gear shift, and in which a loss of the driving force is prevented. Driven gears n | 01-20-2011 |
| 20110023639 | MULTISTAGE TRANSMISSION - A multistage transmission includes a lost motion mechanism for regulating the operation for a downward shift in acceleration and for an upward shift in deceleration. Regulating rods are integrally moved with a control rod. A cutout into which a pin can be fitted together with a cam groove of the slidingly touched cam rod is formed corresponding to each cam groove in the regulating rods. The cutout of the regulating rods corresponding to the cam groove of the cam rod for normal rotation is formed longer than the corresponding cam groove on the reverse side to a moving direction of the control rod in an upward shift in a state in which shifted speed is established. The cutout of the regulating rods corresponding to the cam groove of the cam rod for reverse rotation is formed longer than the corresponding cam groove on the reverse side to a moving direction. | 02-03-2011 |
| 20110041636 | MULTI-STAGE TRANSMISSION - A multi-stage transmission has driving gears m and driven gears n supported on a hollow driven gear shaft | 02-24-2011 |
| 20110308344 | MECHANICAL, MULTI-STEP AUTOMATIC GEARBOX - Multiple gear changes can easily be achieved by means of a straightforward and simple mechanical method, power transmission efficiency and the gear-changing sensation can be improved as compared with the prior at, and, in addition, fuel consumption can actually be reduced even as power performance is increased. | 12-22-2011 |
| 20120144943 | MULTI-SHAFT DRIVE DEVICE - Output gears are disposed so as to be movable toward and counter to plural second input gears to which rotation of the motor is transmitted, and so as to be biased toward the plural second input gears. A cam, which has plural recesses provided at the periphery thereof, is disposed at the inside of the output gear. The cam is rotated, and a pin of the output gear enters the recess, so that the output gear is moved toward the second input gear, and the output gear is engaged with the second input gear. | 06-14-2012 |
| 20120240702 | TRANSMISSION FOR SADDLE TYPE VEHICLE - In a transmission for a saddle type vehicle wherein a shift position sensor for detecting the angular position of a shift drum has a sensor shaft disposed coaxially with the shift drum and wherein an engaging pin disposed along a plane orthogonal to the center axis of the sensor shaft and inserted and passed through and fixed to the sensor shaft is engaged with an engagement groove provided at one axial end of the shift drum, to restrain abrasion or torsion from occurring between the engagement groove and the engaging pin even if a radial load is exerted on the shift drum at the time of a shift change and thereby to promise enhanced durability. The longitudinal direction of the engagement groove is set in a direction orthogonal to the direction in which the greatest one of radial loads on the shift drum is exerted. | 09-27-2012 |
| 20130255415 | VEHICLE TRANSMISSION - A vehicle transmission wherein a single shift spindle is provided with a master arm to operate the transmission via an accumulation mechanism and a clutch lever to operate a clutch, capable of more reliably realizing disconnection of the clutch after the completion of accumulation necessary for a shift operation. A vehicle transmission includes a master arm provided on a shift spindle for transmitting a rotational force to a shift drum of a transmission to rotate and operate the shift drum with a clutch lever provided on the shift spindle, to operate the clutch. An accumulation mechanism is capable of accumulating the rotational force transmitted from the shift spindle to the master arm. The master arm and the clutch lever are interlocked with each other. A delay mechanism is provided that delays the clutch disconnection operation with the clutch lever before accumulation is completed between the shift spindle and the clutch. | 10-03-2013 |
| 20130327171 | TRANSMISSION CAPABLE OF MULTI-SPEED GEAR-SHIFTING BY REVERSE MOTION - A transmission particularly for bicycles, which is capable of multi-speed gear-shifting by means of reverse rotation and comprises: a transmission axle rotatable in both positive and reverse directions, a speed-changing gear set, a speed-changing cam set, and a transmission seat. The speed-changing gear set comprises a plurality of transmission gears and speed-changing gears which are respectively engaging with the transmission gears. When the transmission axle rotates reversely, the speed-changing cam set can be driven in order to control and decide which transmission gear of the speed-changing gear set is to be engaged and driven by the transmission axle during positive rotation, so as to achieve the feature of multi-speed gear-shifting by means of reverse rotation. | 12-12-2013 |
| 20140060227 | SHIFT SYSTEM FOR POWER TRANSMITTING DEVICE - A mechanism with an inner race, which has cams, an outer race and rollers between the cams and the outer race. The inner race has a first notch while the outer race has a second notch with a narrow portion and a wider portion. A member is disposed in the first and second notches. Positioning of the member in the first notch and the narrow portion of the second notch inhibits relative rotation between the inner and outer races and power is not transmitted between the outer race and a power transmitting member, such as a gear. Positioning of the member in the first notch and the wider portion of the second notch permits some relative rotation between the inner and outer races to cause the cams to urge the rollers outwardly so that the outer race frictionally engages the power transmitting member to facilitate transmission of rotary power therebetween. | 03-06-2014 |
| 20140338484 | SHIFT-BY-WIRE TRANSMISSION - A shift-by-wire transmission system is provided. The system includes a gearbox that is configured and arranged to receive a rotational input and provide a select rotational output. The gearbox includes a plurality of gear assemblies that are operationally coupled together to provide the select rotational output from the rotational input. A shift assembly is operationally coupled to the plurality of gear assemblies of the gearbox to selectively change gearing of gearbox. An electric motor is operationally coupled to the shift assembly to activate the shift assembly to selectively change the gearing of the gearbox. A manual shift override is employed that is coupled between the shift assembly and the electric motor. The manual shift override is configured and arranged to manually disconnect the electric motor from the shift assembly and activate the shift assembly. | 11-20-2014 |
| 20140373656 | DISENGAGING GEAR UNIT - Reduction gear units are provided comprising a gearbox, a cam assembly, a bearing assembly, a first gear and a second gear. The first and second gears may engage one another and translate rotating movement from one axis to an axis perpendicular thereto. The second gear is disengagable from the first gear by action of the cam assembly, which is adapted to disengage the second gear from the first gear through eccentric rotation of the cam assembly. In one embodiment, a bearing assembly carried by the cam assembly is preloaded. The cam assembly is disposed so that the preloaded can be maintained during manufacture of the gearbox. In another embodiment, the gearbox case and cam assembly are disposed so as to minimize internal leakage from the case and enhance sealing of the gearbox. | 12-25-2014 |
| 20160091089 | SHIFT DRUM ANGLE DETECTING DEVICE FOR TRANSMISSION - A shift drum angle detecting device for a transmission includes shift forks, a shift drum, a first sensor shaft, a first angle sensor, a speed increasing mechanism, and a second angle sensor. The first angle sensor is to detect a rotational angle of the first sensor shaft to output a first output value based on the rotational angle. The speed increasing mechanism includes a speed increasing drive member, a speed increasing driven member, and a second sensor shaft. The second angle sensor is provided to the second sensor shaft to detect a rotational angle of the second sensor shaft and to output a second output value based on the rotational angle. A rotational angle of the shift drum is to be detected based on the first output value output from the first angle sensor and the second output value output from the second angle sensor. | 03-31-2016 |
