Title:
UNIT BRAKE
Document Type and Number:
WIPO Patent Application WO/2013/014862
Kind Code:
A1
Abstract:
This unit brake, which is equipped with a cylinder apparatus in which a clutch mechanism that switches between transmitting or cutting off a biasing force of a spring brake part is disposed, is capable of preventing a braking force due to the spring brake part from unintentionally decreasing due to a meshing section of the clutch mechanism disengaging, and is of a size that can replace an existing unit brake, and maintains the performance of bearings in the clutch mechanism even with long-term use. The clutch mechanism of the unit brake (100) comprises: a nut member (81) that rotatably screws on a spindle (50) that is positioned in an area that communicates with the atmosphere, and is movably supported in a direction opposite to braking; a clutch (84) that is disposed in a direction opposite to braking with respect to the nut member (81), and faces the nut member (81) in the vicinity of the spindle (50); a clutch box (82) that is formed in a cylinder shape, and houses the nut member (81) and clutch (84) on the inside; and bearings (83) that rotatably support the nut member (81) on the inside of the clutch box (82).
Inventors:
ASANO YOSHIO (JP)
Application Number:
PCT/JP2012/004271
Publication Date:
January 31, 2013
Filing Date:
July 02, 2012
Export Citation:
Assignee:
NABTESCO CORP (JP)
ASANO YOSHIO (JP)
ASANO YOSHIO (JP)
International Classes:
F16D65/28; B61H1/00; B61H13/34; F16D49/00; F16D65/14; F16D65/56
Foreign References:
| JP2001206213A | 2001-07-31 | |||
| JPH1159391A | 1999-03-02 | |||
| JP2010164193A | 2010-07-29 | |||
| JP2008101766A | 2008-05-01 |
Attorney, Agent or Firm:
CREIA IP ATTORNEYS (JP)
Patent business corporation クレイア patent firm (JP)
Patent business corporation クレイア patent firm (JP)
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Claims: