Title:
ブレーキシリンダ装置及びディスクブレーキ装置
Document Type and Number:
Japanese Patent JP5283763
Kind Code:
B2
Abstract:
A brake cylinder device is provided that includes a clearance adjustment mechanism, can be made less likely to be affected by the surrounding environment such as temperature and humidity at low cost, and also can achieve a reduction in the radial dimension of a cylinder body. A threaded shaft (24) connected to a brake output portion (21) is accommodated inside a guide tube (25) attached to a piston (22). A pusher spring (26) biases the threaded shaft (24) in the braking direction. A clutch nut (27) is threadably engaged with the tip of the threaded shaft (24), and a front clutch (28) and a rear clutch (29) are disposed so as to be capable of coming into contact with the clutch nut (27) on the front side and the rear side, respectively A stopper (30) is disposed so as to be movable relative to the clutch nut (27) and the guide tube (25) along the axial direction of the threaded shaft (24), and its movable range is restricted with respect to the cylinder body (20). An adjustment spring (31) is in contact, at its first end, with the stopper (30), and is provided so as to be capable of biasing the clutch nut (27) toward the anti-braking direction.
Inventors:
Tomoya Ohno
Yoichiro Ozawa
Joichi Nakamura
Yoichiro Ozawa
Joichi Nakamura
Application Number:
JP2011547466A
Publication Date:
September 04, 2013
Filing Date:
December 10, 2010
Export Citation:
Assignee:
Nabtesco Co., Ltd.
International Classes:
F16D65/56; B61H15/00; F16D55/2255; F16D65/18; F16D65/46
Domestic Patent References:
| JPS5213215A | 1977-02-01 | |||
| JPS6170231A | 1986-04-11 | |||
| JP2008261439A | 2008-10-30 | |||
| JP2007131203A | 2007-05-31 |
Attorney, Agent or Firm:
Patent Corporation Wandee ip Partners