| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 475169000 | Means to change speed ratio between input and output | 6 |
| 20090017956 | Reduction gear with increased number of meshed teeth - A reduction gear includes a case including a hollow cylinder having teeth on its inner wall; a ring gear having outer teeth meshed with the teeth of the cylinder, and inner teeth; and an eccentric gear assembly mounted in the cylinder and including a hollow eccentric shaft including rear and front eccentric sections, and first and second gears rotatably secured onto the rear and front eccentric sections respectively. Rotating an input shaft in a first speed will rotate the eccentric shaft to rotate the first and second gears around the inner teeth of the ring gear eccentrically, thereby rotating the output shaft in a second speed lower than the first speed. The invention has an increased number of meshed teeth between each of the first and second gears and the ring gear so as to distribute a radial load to more teeth in rotation. | 01-15-2009 |
| 20130203544 | SPEED CHANGE GEAR DEVICE - A speed change gear device is provided with a housing, a first member supported rotatably about a predetermined rotational axis, a shaft member formed with an external gear, an annular member formed with an internal gear meshing with the external gear, and a transmission mechanism for transmitting a rotational component only of the annular member to the shaft member or a disc member arranged to be rotatable relative to the housing. The external gear differs from the internal gear in the number of teeth. Further, the first member is formed with a receiving hole that receives the annular member at a position where the center of the annular member is at a predetermined distance from the rotational axis. Then, the annular member is received in the receiving hole rotatably relative to the first member. | 08-08-2013 |
| 20140045636 | TRANSMISSION RATIO VARIABLE DEVICE - A second shaft is configured by a shaft portion extending outside a housing in which a nutation gear mechanism is housed, a housing portion, and a cylindrical portion. A communicating hole, through which an outside and an inside of the housing portion communicate with each other, is formed in the shaft portion. A preload applying mechanism includes a preload adjusting plug that is screwed to the housing portion and is able to be operated from outside through the communicating hole, a wave washer compressed in accordance with a position of the preload adjusting plug, and a lock nut that is screwed to the housing portion of the second shaft so as to press the preload adjusting plug toward the nutation gear mechanism. | 02-13-2014 |
| 20150362045 | TRANSMISSION DEVICE - A feature for joining gear wheels includes a disk portion | 12-17-2015 |
| 475170000 | Variable eccentricity | 2 |
| 20090036250 | Reduction Gear Device - A reduction gear device utilized in a joint portion of an industrial robot, durability of the reduction gear device being increased in the case where torque applied to the reduction gear device is high and the reduction gear device is utilized at a high operation rate. | 02-05-2009 |
| 20120178577 | CONTINUOUSLY VARIABLE TRANSMISSION AND AUTOMOBILE DRIVE SYSTEM - A continuously variable transmission includes a one-way clutch, a plurality of linking members, and a variable gear ratio mechanism. The one-way clutch includes an input shaft, a plurality of eccentric discs, a first crank member, a second crank member, an output member, an input member, and an engaging member. The input shaft is rotatable about an input center axial line under the rotational force. The plurality of eccentric discs is disposed around the input center axial line at equal intervals in a circumferential direction. | 07-12-2012 |
