Shift control mechanism for a countershaft transmission

Details Shift control mechanism for a countershaft transmission Shift control mechanism for a countershaft transmission

1980-02-19

1981-09-29

Braun, Leslie

Machine element or mechanism

Gearing

Interchangeably locked

74 8915, 744248R, 74473R, B60K 2010, B60K 2012, F16H 118, F16H 120

Patent

active

042915864

ABSTRACT:
A shift control for a countershaft transmission has an electric motor drive. The output of the electric motor is connected to the screw portion of a barrel-nut and screw actuator. The barrel-nut is selectively grounded or rotated so that the motion of the shift control output member is linear or rotary, respectively. The motion of the output member of the shift control describes an "H" or modified "H" shift pattern and is adapted to be connected to control the gear changing mechanism in a countershaft transmission.

REFERENCES:
patent: 2235943 (1941-03-01), Mylius
patent: 2637222 (1953-05-01), Backus
patent: 2649813 (1953-08-01), Barth et al.
patent: 2881625 (1959-04-01), Hodkin
patent: 3110191 (1963-11-01), Schulze
patent: 3192788 (1965-07-01), Fodrea
patent: 3277734 (1966-10-01), Bernard

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