Patent ID: 7543688
Filing Date: 2009-06-09
Classification: B60T,F16D

Abstract:
1. A brake apparatus for braking a wheel of a vehicle, comprising: a brake member rotated integrally with said wheel relatively to said vehicle; a friction member mounted on said vehicle to be capable of being in contact with said brake member, said friction member being pressed onto said brake member to restrain said wheel from rotating; a rotation member fixed to said wheel and rotated integrally with said wheel; an electric motor for controlling an output thereof in response to an electric signal; differential shift means having more than three components movable relatively to one another, with motions of two of said components being defined, thereby to define motions of the rest of said components; and a motion converter for converting a rotating motion of said electric motor into a thrust motion of said friction member to be pressed onto said brake member, one of said components of said differential shift means being movable in response to rotation of said rotation member, another one of said components of said differential shift means being movable in response to rotation of said electric motor, and at least one of the rest of said components of said differential shift means being movable in response to operation of said motion converter.