Transmission ratio selector

Details Transmission ratio selector Transmission ratio selector

1986-05-12

1987-08-04

Husar, Cornelius J.

Machine element or mechanism

Gearing

With brake means for gearing

74436, 74458, F16H 5710

Patent

active

046837680

ABSTRACT:
A transmission ratio selector actuator has a transmission ratio selector assembly including a selector shaft and a toothed gear segment secured thereto. The selector shaft is adapted to drive a conventional transmission detent sector plate or "rooster comb". The toothed segment meshes with a gear member which is formed integrally with or otherwise secured to a Geneva drive sector. A drive pin for the Geneva drive sector is secured to a worm wheel which is driven by a worm shaft integrally formed with or otherwise secured to an electric motor. A plurality of electrical control switches are actuated by the Geneva drive sector to control the operation of the motor and thereby provide for proper positioning of the selector shaft. The worm wheel has integral therewith a cam surface which is actuated upon by brake shoes to ensure stoppage of the drive pin during disengagement from the Geneva drive sector upon deactuation of the drive motor.

REFERENCES:
patent: 2392320 (1946-01-01), Hegy
patent: 2589486 (1952-03-01), Emrick
patent: 3236116 (1966-02-01), Hafferkamp et al.
patent: 4033494 (1977-07-01), Middleton et al.
patent: 4449416 (1984-05-01), Huitema
patent: 4570765 (1986-02-01), Makita

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