Lockable control lever arrangement

Details Lockable control lever arrangement Lockable control lever arrangement

1982-04-12

1985-07-02

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74483R, 74529, 180271, 1376362, 251114, G05G 502, G05G 902, G05G 1100

Patent

active

045260559

ABSTRACT:
A lockable control lever arrangement in which a pivotally mounted control lever (10) is provided with linkages (12,13,16,17,18,19) for connecting the control lever with one or more functions to be controlled. A locking device (60) is provided for locking the lever in a given position.
The locking device includes a first locking formation (23,24) operatively connected with each of the linkages, a locking member (20,21,22) having a second locking formation (21a,22a) engageable with the first locking formation to lock the control lever (10) in the given position, and a manually operable operating means (26,27,28,29) for moving the locking member to bring the first and second formations into engagement to lock the control lever.
The control lever arrangement is particularly applicable to the operation of hydraulic valves which control the loaders and diggers of industrial tractors.

REFERENCES:
patent: 1938796 (1933-12-01), Bernard
patent: 2588565 (1952-03-01), Pealer
patent: 3523588 (1970-08-01), Bradshaw
patent: 3811020 (1974-05-01), Johnson et al.
patent: 3831633 (1974-08-01), Comer
patent: 4051860 (1977-10-01), Dowd et al.
patent: 4069900 (1978-01-01), Stamate
patent: 4222287 (1980-09-01), Drone et al.
patent: 4301834 (1981-11-01), Comer, Jr. et al.
patent: 4358965 (1982-11-01), Schroeder

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