Anti release means, such as a circlip, can be used to prevent release of the adaptor.

In this way, a compression force and the prevailing torque are produced between thread engagement surfaces, thereby producing an anti-loosening effect.

The anti-loosening screw can achieve excellent anti-loosening effect for a long period. [MEANS FOR SOLVING PROBLEMS] An anti-loosening screw has a head section (1) and a shaft section (2).

On the other hand, an anti-loosening post inserted in a hole of a work-piece has reliable anti-loosening function for a bolt.

Loosening prevention mechanisms for preventing loosening of supporting columns (23) of the handrails (22) are installed on the sockets (3A).

An anti-loosening device is provided between said front sleeve and said nut, which includes an internal gear ring, a control cam and a spring member provided between said internal gear ring and said control cam.

Anti release means, such as a circlip, can be used to prevent release of the adaptor.

The reverse rotation of threaded components is fundamentally prevented, with a very good anti-loosening effect.

Manual release of the parking brake

A fastening member exhibiting sufficient loosening prevention effect without an increase in the size of the fastening member.

Manual release of the automatic air brake.

the immobilisation shall remain until intentionally released

adjustable brake release device

brake application and release test

auxiliary release device for spring-brake actuator