Automatic slack adjusters for vehicle brake linkages

Details Automatic slack adjusters for vehicle brake linkages Automatic slack adjusters for vehicle brake linkages

1977-07-11

1978-09-19

Reger, Duane A.

Brakes

Position adjusters

Slack

188 795K, F16D 6556

Patent

active

041147332

ABSTRACT:
An automatic slack adjuster for a vehicle brake linkage comprising a housing constituting a lever in the linkage, and the lever is angularly movable about the axis of a shaft to impart to the shaft a brake-applying rotary movement which it transmits to it through a meshing worm and worm wheel assembly. Automatic worm driving means are incorporated for rotating the worm for adjustment of slack in the linkage in response to relative movement between the lever and a relatively stationary part, and the worm driving means incorporates a connection having a degree of lost-motion equivalent to a desired braking clearance, and a spring-loaded clutch of the multi-plate type disposed between the worm and a slidable pawl connected to the stationary part. The clutch includes primary clutch plates and secondary clutch plates with each secondary clutch plate being provided with a tooth, and all the teeth being received in a common notch in the pawl.

REFERENCES:
patent: 3662865 (1972-05-01), Newstead et al.
patent: 3724607 (1973-04-01), Reinecke
patent: 3997036 (1976-12-01), Zeidler

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