Class / Patent application number | Description | Number of patent applications / Date published |
475165000 | Friction gearing | 7 |
20120264557 | TORQUE DISTRIBUTOR - A torque distributor includes a friction-drive mechanism having a first roller rotatable together with a first rotary member, partly constituting a torque-transmission path to primary drive wheels, and a second roller rotatable together with a second rotary member, partly constituting a torque-transmission path to secondary drive wheels. Also provided is an eccentric-crank mechanism for revolving the second roller in a direction opposite to a rotation direction of power transmission of the second roller around an eccentric-shaft axis displaced from a second-roller rotation axis to produce a displacement of the second roller from a non-power-transmission position of non-frictional-contact with the first roller to a radially-loaded power-transmission position of frictional-contact with the first roller. Although the friction-drive type is used, the torque distributor enables torque-distribution-control mode switching between them, while ensuring high-precision torque-distribution control by avoiding a polarity of moment acting on a rotational-position-control system for an eccentric crank from being reversed. | 10-18-2012 |
20130059692 | MECHANICAL SPEED VARIATOR WITH ECCENTRIC DYNAMIC MASSES HAVING A BALANCED STRUCTURE - A mechanical speed variator is provided with eccentric masses having a balanced structure. The variator includes a drive shaft, provided with a cam composed of a circular disk eccentrically mounted on the drive shaft, which drives the driven shaft in rotation with interposition of a series of eccentric masses, each of them being composed of a circular disk with eccentric circular hole in which another mass of lower dimensions is ratably housed. The larger mass is housed and rotates inside the eccentric hole of a ring coupled with bolts to a flange and counter flange, respectively mounted on the driven shaft and the drive shaft. | 03-07-2013 |
20130157795 | MULTI-STAGE REDUCTION GEAR - The multi-stage reducer includes a first-stage reduction part to which the rotation from a motor is input and a second-stage reduction part to which the rotation having undergone speed reduction by the first-stage reduction part is input. The second-stage reduction part is disposed on an outer circumference of the first-stage reduction part. | 06-20-2013 |
20150345607 | CIRCULAR WAVE DRIVE - Exemplary embodiments of the invention are directed to drive mechanisms that may be used in, for example, power transmission and/or speed reduction applications. Exemplary embodiments of the invention may include a housing within which is located a wheel. A portion of a wave generator and a portion of an output element also reside within the chamber and are in communication with the wheel. Rotation of the wave generator causes a rotation of the wheel in a slipping manner and, thus, with a reduced rotational speed. Rotation of the wheel causes a rotation of the output element. | 12-03-2015 |
475166000 | Variable speed | 3 |
20090062053 | Rotation Output Device - A compact rotation output device is realized by disposing an output shaft of a reduction gear transmission coaxially with an axis line of a rotating disk while simultaneously ensuring a space in a rear face of the rotating disk through which a columnar bar or wiring etc. can pass. | 03-05-2009 |
20090197731 | Continuously variable transmission and operating method therefor - The invention relates to a continuously variable transmission ( | 08-06-2009 |
20110077118 | Power Transmission System with Continuously Variable Speed Control - The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torque relative to its prime input through the low friction, rolling engagement of its members, or alternatively, at increased speed and reduced torque for overdrive applications. Furthermore, the speed of the output member may be varied continuously and infinitely between the apparatus's lowest and highest ratio via a secondary input member and its low friction, rolling engagement with the device's members. | 03-31-2011 |