Clutch assist apparatus

Details Clutch assist apparatus Clutch assist apparatus

1981-01-21

1983-07-19

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Operators

74 2, 74109, 74512, 192 89R, 192101, 267174, F16D 2312, G05G 1700

Patent

active

043939074

ABSTRACT:
A clutch release assist mechanism for avoiding excessive clutch pedal efforts. The assist mechanism includes a spring-loaded apparatus to bias the clutch toward a release disposition, but the assist function is not activated until after initial movement of the release mechanism has been effected by the operator through pedal displacement. The amount of spring bias to assist the mechanism is less than that of the clutch to permit the clutch to revert to a closed or engaged position once the release mechanism has been deactivated. This mechanism includes a rack operated in conjunction with a piston and cylinder arrangement to provide for "free travel" before activation of an assist spring. The rack in turn operates through a sector or pinion to rotate a clutch release shaft between a clutch disengaged and engaged positions.

REFERENCES:
patent: 1461573 (1923-07-01), Browne
patent: 1637734 (1927-08-01), Carhart
patent: 1804903 (1931-05-01), Wemp
patent: 1860636 (1932-05-01), Tibbetts
patent: 1927643 (1933-09-01), Hughes
patent: 2043812 (1936-06-01), Russell
patent: 2458364 (1949-01-01), Foster
patent: 2985031 (1961-05-01), Bennett
patent: 3187867 (1965-06-01), Sink
patent: 3198301 (1965-08-01), Randel
patent: 3199367 (1965-08-01), Zetye
patent: 3262532 (1966-07-01), Phelps
patent: 3319752 (1967-05-01), Chillson et al.
patent: 3443673 (1969-05-01), Rosenberger

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