Spring applied parking brake assembly |
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| 申请号 | EP01103946.8 | 申请日 | 2001-02-19 | 公开(公告)号 | EP1127766A3 | 公开(公告)日 | 2003-08-13 |
| 申请人 | Westinghouse Air Brake Technologies Corporation; | 发明人 | Kanjo, Wajih; Natschke, Scott; | ||||
| 摘要 | A spring applied parking brake assembly (10) for a railway vehicle is provided which automatically activates upon removal of a railway car from the pneumatic braking system of the railway vehicle. The spring applied parking brake assembly (10) comprises a casing which is mounted on or within the braking system, typically alongside the air cylinder. This casing contains a spring member and a piston assembly, both of which are mounted for longitudinal movement within the casing upon the application and/or removal of pneumatic pressure within the casing. The piston assembly includes a piston rod which is associated with the force transfer lever (14,16) of the braking system such that upon a removal of pneumatic pressure within the casing, longitudinal movement of the piston rod causes this force transfer lever to rotate and apply a force to at least one force transmitting member in the vehicle braking system to initiate a brake application. An arrangement or system for installing the spring applied parking brake assembly within a railway vehicle braking system is also provided. | ||||||
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