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Patent Searching and Data


Title:
WEDGE CAM BRAKE
Document Type and Number:
WIPO Patent Application WO/2017/022847
Kind Code:
A1
Abstract:
A wedge cam brake wherein a ball screw (13), which is screwed into a ball nut (38) to which a wedge cam (20) is integrally provided, is rotationally driven, thereby moving the wedge cam (20) along the direction of the rotational axis of the ball screw (13) to a braking position and, by means of the cam operation of the wedge cam, the base ends of brake arms (3) perform a braking operation while clamping a pair of pad assemblies (6, 6) from both sides of a brake rotor (100). The wedge cam brake is equipped with compression coil springs (17) for pressing and biasing the ball nut (38) toward the braking position, where the wedge cam (20) opens the base ends of the brake arms (3), and a spring-holding mechanism (30) that holds the compression coil springs (17) in an energy-storing state.

Inventors:
MAEHARA TOSHIFUMI (JP)
MASHIMO SHOGO (JP)
YOSHIKAWA KAZUHIRO (JP)
Application Number:
JP2016/073058
Publication Date:
February 09, 2017
Filing Date:
August 05, 2016
Export Citation:
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Assignee:
AKEBONO BRAKE IND (JP)
International Classes:
F16D65/18; B61H5/00; F16D55/00; F16D63/00; F16D121/16; F16D121/24; F16D123/00; F16D125/40; F16D125/66; F16D127/00; F16D129/08
Domestic Patent References:
WO2012118133A12012-09-07
WO2012111830A12012-08-23
Foreign References:
JP2010065751A2010-03-25
US3927738A1975-12-23
JP2011511730A2011-04-14
Other References:
See also references of EP 3333443A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P. C. (JP)
Patent business corporation glory patent firm (JP)
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