Directional control system for a tractor transmission

Details Directional control system for a tractor transmission Directional control system for a tractor transmission

1989-05-30

1990-10-30

Diehl, Dwight

Machine element or mechanism

Gearing

Interchangeably locked

74473SW, 200332, F16H 5910

Patent

active

049660446

ABSTRACT:
A single lever directional control system for positively conditioning a tractor transmission for either a forward or reverse mode of operation. The control system includes a controller for engaging the transmission in either of two modes of operation as a function of the electrical signals directed to the controller, an electrical switch for directing electrical signals to the controller as a function of the operative state of the switch, and an over-center control lever for controlling the operative state of the switch. The over-centering of the control lever positively positions the lever in either of two positions corresponding to the two modes of operation of the transmission. Precise shifting of the transmission is facilitated by configuring the control lever for movement in two distinct directions of movement to shift the transmission.

REFERENCES:
patent: 2964964 (1960-12-01), Craig
patent: 3853019 (1974-12-01), McAdams
patent: 3954021 (1976-05-01), Mraz
patent: 4040306 (1977-08-01), Jensen
patent: 4215771 (1980-08-01), Huitema
patent: 4494418 (1985-01-01), Bellah et al.
patent: 4641545 (1987-02-01), Rabe
patent: 4649768 (1987-03-01), Kusaka et al.
patent: 4676114 (1987-06-01), Ida et al.
patent: 4680983 (1987-07-01), Brown

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