Vehicle slack adjusters

Details Vehicle slack adjusters Vehicle slack adjusters

1984-07-13

1986-11-25

Reger, Duane A.

Brakes

Position adjusters

Slack

74522, 188 795K, F16D 6546

Patent

active

046243453

ABSTRACT:
A slack adjuster for use in a transportation environment has a body which has a lever arm formed at one end thereof. There is a crosshole or passage in the body and a worm gear wheel is positioned in the passage for mounting on a brake operating shaft. There is a slot formed in the body and opening into the passage. The slot has three mutually perpendicular surfaces and is of a size and shape to hold a worm gear and to provide for threaded engagement of the worm gear and the worm gear wheel. There is a bore in the body which is generally perpendicular to one of the slot's mutually perpendicular surfaces. A shaft is positioned in the bore and coaxially mounts the worm gear for adjustment thereof. The bore is oversized relative to the shaft, thereby providing no bearing support therefor. A torque applied to the worm gear wheel from the body lever arm applies a resultant force, having a component perpendicular to and a component parallel with the worm gear axis, from the worm gear to the slot's perpendicular surfaces.

REFERENCES:
patent: 1689235 (1928-10-01), Fowler et al.

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