Title:
VEHICULAR DISC BRAKE
Document Type and Number:
WIPO Patent Application WO/2019/240117
Kind Code:
A1
Abstract:
This vehicular disc brake makes it possible for an amount of deformation occurring in a caliper body during braking, whereby the disc-radially inner sides of an action part and a reaction part open with a bridge part as a fulcrum, to be substantially the same amount in a disc turn-out side and a disc turn-in side, and for uneven wear of friction pads to be minimized, wherein the vehicular disc brake comprises a caliper bracket 3, a caliper body 6 attached to the caliper bracket 3, and friction pads 7, 7 disposed on both sides of a disc rotor 2, and the caliper body 6 comprises an action part 6a provided with cylinder holes 6f, 6g through which a large-diameter piston 10 and a small-diameter piston 11 are inserted, and a bridge part 6c extending across the outer periphery of the disc rotor 2. Thinned parts 6n, 6p are provided respectively in positions corresponding to the pistons 10, 11 in a disc-radially inner wall 6i of the bridge part 6c. The volume of the thinned part 6b corresponding to the large-diameter piston 10 on the disc turn-out side when the vehicle is moving forward is less than the volume of the thinned part 6p corresponding to the small-diameter piston 11 on the disc turn-in side.
Inventors:
SHIRAISHI YOSUKE (JP)
Application Number:
PCT/JP2019/023057
Publication Date:
December 19, 2019
Filing Date:
June 11, 2019
Export Citation:
Assignee:
NISSIN KOGYO KK (JP)
International Classes:
F16D65/02; F16D55/22; F16D55/225; F16D65/092; F16D65/097
Foreign References:
| JPH0527366U | 1993-04-09 | |||
| JP2017080760A | 2017-05-18 | |||
| JPH109298A | 1998-01-13 | |||
| JP2005330978A | 2005-12-02 |
Other References:
See also references of EP 3809009A4
Attorney, Agent or Firm:
KIDO, Yoshihiko et al. (JP)
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