Patent ID: 9657822
Date: 2017-05-23
CPC Classifications: B60K,B60W,B60Y,B62M,F16H

Claim:
1. A gear system for combining inputs, comprising: a first gear unit; a second gear unit that rotates in mesh with the first gear unit; a third gear unit that rotates in mesh with at least one of the first gear unit and the second gear unit; and a first and a second power sources that generate a first and a second driving forces respectively, wherein two of the first to third gear units are input parts receiving the first and second driving forces, from the first and second power sources, respectively, and a third one of the first to third gear units is an output part outputting a resultant force of the first and second driving forces, at least one of the first power source and the second power source includes a fourth gear unit rotating in a same output direction of a shaft of the first or second power source, and wherein the fourth gear unit includes: a forward gear and a backward gear that rotate forward and backward, respectively when the shaft of the first or second power source rotates forward and backward; a first input gear and a second input gear that input the first or second driving force to corresponding input parts in cooperation with the forward gear and the backward gear; and at least one intermediate gear that is engaged with the forward gear and the first input gear, or with the backward gear and the second input gear.