A brake cylinder apparatus

Details A brake cylinder apparatus A brake cylinder apparatus

B - Operations, Transporting

60

T

B60T 17/08 (2006.01) F16D 65/14 (2006.01)

Patent

CA 2351529

The provision of a brake cylinder apparatus whereby both the service brake and the spring brake employed as a parking brake, etc., can operate, and at the same which can shorten the length in the axial direction. In a brake cylinder apparatus whereby both the service brake means and the spring brake means can operate, a clutch means (4) that couples the second piston (21) with the rod (111) when the pressurized fluid has stopped acting on the second action chamber (24) of the spring brake means (3) and the second piston (21) has started to move towards the rod (111) is provided. This clutch means (4) comprises (a) a screw (31) provided on the outer circumference of the rod (111); (b) a nut element (32) that is supported on the second piston (21) through the medium of a bearing (321) such that it can rotate freely, and that meshes with the screw (31); and a stopping means (33) that stops the rotation of the nut element (32) when the second piston (21) starts to move towards the rod (111).

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