Brake actuator fastener assembly

Details Brake actuator fastener assembly Brake actuator fastener assembly

F - Mech Eng,Light,Heat,Weapons

16

D

188/147

F16D 55/224 (2006.01) F16D 65/14 (2006.01) F16D 65/20 (2006.01)

Patent

CA 1123757

ABSTRACT OF THE DISCLOSURE A vehicular air disc brake of the wedge actuator type in which the wedge actuator is secured to the air motor by an annular fastener which is snap locked in place in a blind bore in the free end of the wedge actuator and which acts to secure the free end of the piston rod of the air motor to the wedge actuator in response to generally linear movement of the piston rod into the fastener. The fastener is split to allow insertion into the blind bore in the free end of the wedge actuator, and includes a plurality of finger portions which together define a single helical thread disposed within the blind bore; this single thread allows the threads on the air motor piston rod to ratchet therepast upon insertion of the piston rod, allows the piston rod to be threaded out of the fastener for disassembly purposes, and, in the event of inadvertent backing out rotation of the piston rod, allows the piston rod to reseat in the blind bottom of the wedge actuator brake in response to the next actuation of the air motor.

340587

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