TRANSMISSION DEVICE

摘要

A transmission device, wherein the compound planetary gear mechanism increases the speed of the power transmitted to the input element and transmits the resultant power to the first and the second output elements when the fixable element is non-rotatably held stationary by the first brake; and the first and the second clutches are disposed on a side closer in the axial direction to the compound planetary gear mechanism than the first and the second planetary gear mechanisms.

主权项

1. A transmission device that changes a speed of power transmitted from a motor to an input shaft and transmits resultant power to an output shaft, the transmission device comprising:
a compound planetary gear mechanism including an input element, a fixable element, a first output element, and a second output element; a first planetary gear and a second planetary gear disposed coaxially and side by side in an axial direction with the compound planetary gear mechanism, and each including a plurality of rotational elements; a first brake that connects and non-rotatably holds the fixable element of the compound planetary gear mechanism stationary to a case and releases the fixable element such that the fixable element is rotatable; a first clutch that connects the first output element and at least one of the rotational elements of the first and the second planetary gears and releases the connection therebetween; and a second clutch that connects the second output element and at least one of the rotational elements of the first and the second planetary gears and releases the connection therebetween, wherein the compound planetary gear mechanism increases the speed of the power transmitted to the input element and transmits the resultant power to the first and the second output elements when the fixable element is non-rotatably held stationary by the first brake; and the first and the second clutches are disposed on a side closer in the axial direction to the compound planetary gear mechanism than the first and the second planetary gear mechanisms.