Automatic brake slack adjuster

Details Automatic brake slack adjuster Automatic brake slack adjuster

1985-10-23

1986-12-30

Reger, Duane A.

Brakes

Position adjusters

Slack

188 719, F16D 6556

Patent

active

046322299

ABSTRACT:
An automatic slack adjuster (60) employs a drive member (22) having a helical groove (28) into which a pin (42) extends from a fixed frame (10) to transfer a rotational torque to a reaction member (30) secured to an adjustment nut member (12) for rotating and enabling nut member (12) upon application of the brake to advance a thrust member (2) threadingly engaged with nut member (12) a distance sufficient to maintain a substantially constant clearance between a frictional layer (5) and a surface (6) to be braked. An engagement means such as frictional layer (33) is disposed between drive member (22) and reaction member (30) and groove 28 is provided with an inclination angle (.theta.) such that the combination enables slippage to occur between members (22) and (30) upon engagement between surface (6) and frictional layer (5).

REFERENCES:
patent: 4085830 (1978-04-01), Bottoms et al.
patent: 4351419 (1982-09-01), Garrett et al.
patent: 4394890 (1983-07-01), Kleinhagen, Jr.

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