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Patent Searching and Data


Title:
DISC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/145678
Kind Code:
A1
Abstract:
Provided is an optimum configuration of an inner shim and an outer shim which are interposed between pistons and a back plate of a brake pad. The back plate (41) is biased inward, by a leaf spring (81), in the radial direction of a rotor. On a V-shaped inner peripheral side torque bearing surface (41a), the back plate (41) engages, at two places, with an inner peripheral support shaft (61) provided in a caliper (20). On an outer peripheral side torque bearing surface (41b), the back plate (41) engages, at one place, with an outer peripheral support shaft (72) provided in the caliper (20). Between the back plate (41) and the pistons (31, 32), there are interposed an inner shim (ISa) which is disposed on the back plate side, and an outer shim (ISb) which is disposed on the piston side. The coefficient of friction between the back plate and the inner shim and the coefficient of friction between the pistons and the outer shim are set to be larger than the coefficient of friction between the inner shim and the outer shim. With respect to the back plate, the inner shim (ISa) is capable of integrally moving in the radial direction and the circumferential direction of the rotor, and is capable of relative rotation in the axial direction of the rotor. With respect to the back plate, the outer shim (ISb) is capable of integrally moving in the radial direction and the circumferential direction of the rotor, is capable of relative rotation in the axial direction of the rotor, and is capable of rotating about the axis of the inner peripheral support shaft (61) by a predetermined amount.

Inventors:
OGAWA Masaharu (1, Showa-cho 2-chom, Kariya-shi Aichi 88, 〒4488688, JP)
Application Number:
JP2011/061501
Publication Date:
November 24, 2011
Filing Date:
May 19, 2011
Export Citation:
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Assignee:
ADVICS CO., LTD. (1 Showa-cho 2-chome, Kariya-shi Aichi, 88, 〒4488688, JP)
株式会社アドヴィックス (〒88 愛知県刈谷市昭和町2丁目1番地 Aichi, 〒4488688, JP)
International Classes:
F16D65/095; F16D55/228; F16D65/02; F16D65/092
Foreign References:
JP2008527272A
JP2006046561A
JP2008256131A
JP2005249114A
JPH11101280A
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (12th Floor, NAGOYA-KS Building 1-18, Taiko 3-chome, Nakamura-ku, Nagoya-sh, Aichi 01, 〒4530801, JP)
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Claims: