Clutch wear indicator apparatus

Details Clutch wear indicator apparatus Clutch wear indicator apparatus

1992-02-18

1993-01-26

Braun, Leslie A.

192 clutches and power-stop control

Clutches

192 98, F16D 6602, F16D 2314

Patent

active

051815931

ABSTRACT:
An apparatus for automatically sensing when the friction elements of a clutch are excessively worn and for generating a signal in response thereto is disclosed. The clutch includes a bearing housing which is adapted to be moved between engaged and disengaged positions. A shift assembly is provided for moving the bearing housing to the disengaged position. The shift assembly includes a pair of fingers which are normally spaced apart from the bearing housing when the clutch is engaged and the friction elements are not worn. However, when the friction elements become worn, the bearing housing engages the fingers of the shift assembly when the clutch is in the engaged position. A sensor is mounted in the bearing housing for generating a signal when the fingers are in contact therewith. The signal may be an electrical signal which is fed to a control circuit. The control circuit includes a timing and comparison circuit which activates an alarm device only when the signal from the sensor has been continuously generated for a predetermined period of time.

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patent: 4705151 (1987-11-01), Leigh-Monstevens et al.
patent: 4934501 (1990-06-01), Gay et al.
patent: 5058718 (1991-10-01), Tojima et al.

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