Clutch adjustment structure

Details Clutch adjustment structure Clutch adjustment structure

1991-12-27

1993-05-25

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Axially engaging

192111B, F16D 1375

Patent

active

052131858

ABSTRACT:
A clutch has an adjusting ring defining an operative position for a spring which is movable to force a drive disc into a driven disc. The adjusting ring is threadably adjustable within the interior of a flywheel housing to allow adjustment of the position of the adjusting ring spring to accommodate wear on the discs. The flywheel housing has a plurality of spaced gaps where there are no threads. The gaps accommodate debris and ensure that the threads on the adjusting ring and the flywheel housing do not bind, and prevent adjustment. The threads are of the buttress-type, having a cross-sectional shape that is less likely to bind. Finally, the lead of the thread is increased such that there are a relatively small number of thread turns per unit length. The resulting adjusting ring remains easily adjustable, and less likely to bind than prior art structures.

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