64results about How to "Large gear ratio" patented technology

A planetary gear mechanism of the invention includes a housing, an input shaft that has an eccentric portion whose center lies on an eccentric axis, and is rotatable about the axis of input and output shafts relative to the housing, an oscillating face plate that eccentrically oscillates relative to the input shaft via the eccentric portion, and rotates about the eccentric axis, and an output shaft that is provided with a second internally toothed gear that internally contacts and meshes with a second externally toothed gear formed on the oscillating face plate, and is rotatable about the axis of the input and output shafts relative to the housing. The housing is formed with a first internally toothed gear that internally contacts and meshes with a first externally toothed gear formed on the oscillating face plate. As the input shaft rotates, a circumferential position at which each externally toothed gear meshes with the corresponding internally toothed gear changes, and rotation of the input shaft is transmitted at a reduced speed to the oscillating face plate, of which rotation is delivered at a further reduced speed to the output shaft.

A vehicle power transmission device in which a continuously variable transmission for continuously changing the transmission gear ratio, and a gear train are disposed between an input shaft to which the torque outputted from a drive power source is inputted and the output shaft which outputs the torque such that the torque can be transmitted between the input shaft and the output shaft, the gear train having a middle shaft disposed on a position that is different from the input shaft and the output shaft and setting at least one transmission gear ratio that cannot be set by the continuously variable transmission, wherein: a forward / reverse switching mechanism for carrying out a differential action by means of three rotating elements is disposed along the same axial line as the output shaft or the middle shaft, the three rotating element being an input element, an output element, and a reaction element for rotating the input element and the output element in the opposite direction from one another as a consequence of the rotation of the reaction element being stopped; a first clutch mechanism for connecting at least two of the three rotating elements and a brake mechanism for stopping the rotation of the reaction element are provided; the input shaft and the output shaft are in communication with one another via the continuously variable transmission; a second clutch mechanism for transmitting and blocking the torque is disposed on a torque transmission path extending from the input shaft to the continuously variable transmission and finally to the output shaft; and the input shaft and the output shaft are in communication with one another via the gear train and the forward / reverse switching mechanism.

A connector includes a second housing fittable with a first housing, a slide member movable relative to the first housing along a connector fitting direction, a transmission gear member rotatably supported by a support shaft provided on the first housing, a first rack gear portion provided on the slide member along the connector fitting direction, a driven gear portion of the transmission gear member rotated by movement of the first rack gear portion in the connector fitting direction, a main drive gear portion of the transmission gear member provided on a side opposite to the driven gear portion with the support shaft interposed therebetween, and a second rack gear portion provided on the second housing along the connector fitting direction, and movable relative to the first housing along the connector fitting direction by rotation of the main drive gear portion.