Control module with override mechanism

Details Control module with override mechanism Control module with override mechanism

1977-03-31

1979-02-27

Freeh, William L.

Machine element or mechanism

Control lever and linkage systems

Elements

74529, G05G 506

Patent

active

041412583

ABSTRACT:
A control module comprises a bracket assembly adapted for attachment to a support structure of a construction vehicle. A control lever is pivotally mounted on the bracket assembly along with a bellcrank having a roller mounted on a first arm thereof. The roller is adapted to selectively engage at least one notch formed on the control lever to form a detent mechanism and is biased in that direction by a tension coil spring connected between the bracket assembly and a second arm of the bellcrank. A control rod is reciprocally mounted in the bracket assembly and has its first end pivotally connected to the control lever and is adapted to have its second end connected to a self-centering valve spool of a directional control valve. A lost-motion link is interconnected between the first arm of the bellcrank and a solenoid plunger of a kickout mechanism to selectively override the solenoid to release the detent mechanism.

REFERENCES:
patent: 1623115 (1927-04-01), Hensley
patent: 1654321 (1927-12-01), Collins
patent: 1823695 (1931-09-01), Moorhouse
patent: 2119638 (1938-06-01), Klampferer
patent: 2694945 (1954-11-01), Jandus
patent: 3519155 (1970-07-01), Jefferson et al.

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