Title:
ELECTRICALLY OPERATED BRAKE DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/110687
Kind Code:
A1
Abstract:
This electrically operated brake device is provided with: an electric motor for pressing a friction member against a rotating member; and a return mechanism for moving the friction member in the direction away from the rotating member when the electric motor is not energized. The return mechanism comprises: a spiral spring having one end portion thereof engaged with a rotating shaft driven by the electric motor; and a housing having formed thereon a holding surface extending toward the outside radially of the spiral spring. A restraint section is formed at the other end portion of the spiral spring. When the electric motor is rotated in a forward direction which is the direction in which the friction member is moved toward the rotating member, the restraint section presses on the holding surface, and the spiral spring applies return torque to the electric motor, the return torque acting in a reverse direction opposite the forward direction.
Inventors:
WAZAKI TAKAYUKI (JP)
YUKOKU SHINICHIRO (JP)
YUKOKU SHINICHIRO (JP)
Application Number:
PCT/JP2017/045039
Publication Date:
June 21, 2018
Filing Date:
December 15, 2017
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/74; B60T17/18; F16D65/18; F16F1/06; F16F1/10; F16D121/24; F16D127/02; F16D129/04
Foreign References:
| JP2013024389A | 2013-02-04 | |||
| CN104879408A | 2015-09-02 | |||
| JP2011236984A | 2011-11-24 |
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