发明名称 |
BRAKE CYLINDER DEVICE AND DISC BRAKE DEVICE |
摘要 |
<p>Disclosed is a compact brake cylinder device which, while avoiding increases in the size of the device, is capable of increasing the braking force outputted from a brake output unit which moves together with a rod. A rod (22) is provided inside of a cylinder body (20) so as to freely move in the advancing and retracting directions of the cylinder shaft direction. A piston (24) partitions a pressure chamber (44) inside of the cylinder body (20), surrounding the circumference of the rod (22), and moves in a linear direction parallel to the movement direction of the rod (22). By supplying a pressure fluid to the pressure chamber (44), the piston (24) resists the biasing force of a biasing spring (23) and moves in the retracting direction relative to the cylinder body (20). At that time, a force-multiplication mechanism (25) converts the linear direction drive force generated by the piston (24) to a rotational direction, moves the rod (22) in the advancing direction, and multiplies the drive force from the piston (24) to act on the rod (22). A brake output unit (21) moves together with the rod (22) in the advancing direction and outputs a braking force.</p> |
申请公布号 |
WO2012005149(A1) |
申请公布日期 |
2012.01.12 |
申请号 |
WO2011JP64883 |
申请日期 |
2011.06.29 |
申请人 |
NABTESCO CORPORATION;OHNO, TOMOYA;NAKAMURA, JYOICHI |
发明人 |
OHNO, TOMOYA;NAKAMURA, JYOICHI |
分类号 |
F16D55/224;F16D65/14;F16D65/18;F16D65/74 |
主分类号 |
F16D55/224 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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