Automatic transmission with free-wheeling drive shaft

Details Automatic transmission with free-wheeling drive shaft Automatic transmission with free-wheeling drive shaft

1989-08-30

1992-03-31

Braun, Leslie A.

Machine element or mechanism

Gearing

Interchangeably locked

74336R, 192105CD, F16H 308

Patent

active

050997122

ABSTRACT:
An automatic transmission having a plurality of driving gears which are individually and selectedly placed in driving engagement with a drive shaft dependent upon the speed of rotation of the drive shaft. The method of automatically engaging and disengaging the drive coupling between a drive gear and the drive shaft is such as to permit the drive shaft to free wheel whenever the rotation of the drive gear is retarded or stopped. The releasable coupling is achieved by centrifugally actuated pawls which selectedly engage in detent notches about the inner diameter of the drive gears and which pawls automatically retract and disengage from these notches when the drive gears are retarded or stopped.

REFERENCES:
patent: 1670403 (1928-05-01), Davidson
patent: 1713909 (1929-05-01), Marcher
patent: 1969561 (1934-08-01), Keller
patent: 1979077 (1934-10-01), Pilaar
patent: 1979080 (1934-10-01), Roeder
patent: 2047174 (1936-07-01), Baumgartner
patent: 2049103 (1936-07-01), Baumgartner
patent: 2165201 (1939-07-01), Baumgartner
patent: 2219812 (1940-10-01), Hochstetter
patent: 2789440 (1957-04-01), Pethybridge
patent: 3067626 (1962-12-01), Doemis et al.
patent: 3889547 (1975-06-01), Sun et al.
patent: 3969948 (1976-07-01), Pipenhagen, Jr.
patent: 4301690 (1981-11-01), Cavanagh
patent: 4716777 (1988-01-01), Hartmann
patent: 4771636 (1988-09-01), Fujita
patent: 4841794 (1989-06-01), Hikishima

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