| US 7,543,688 B2 | ||
| Brake apparatus for a vehicle | ||
| Haruo Arakawa, Toyota (Japan); Takahisa Yokoyama, Anjo (Japan); Takayuki Takeshita, Anjo (Japan); and Chihiro Nitta, Anjo (Japan) | ||
| Assigned to Advics Co., Ltd., Kariya, Aichi-Pref. (Japan) | ||
| Filed on Dec. 01, 2005, as Appl. No. 11/290,520. | ||
| Claims priority of application No. 2004-354039 (JP), filed on Dec. 07, 2004. | ||
| Prior Publication US 2006/0118367 A1, Jun. 08, 2006 | ||
| Int. Cl. F16D 55/08 (2006.01) | ||
| U.S. Cl. 188—72.7 [188/162; 188/196 V; 188/343] | 9 Claims |
| 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.
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