Releasable backhoe boom lock

Details Releasable backhoe boom lock Releasable backhoe boom lock

1978-03-08

1980-01-22

Kunin, Stephen G.

Material or article handling

Vertically swinging load support

Shovel or fork type

212 46R, 414722, E02F 332

Patent

active

041848039

ABSTRACT:
A releasable lock for locking a boom that is pivoted on a horizontal pivot axis on a frame disclosed herein. The releasable lock includes a pin or first member on the frame and a second member pivotally supported on the boom about a common pivot axis with one end of a unit fluid ram that has its opposite end connected to a material handling unit which is pivoted on the outer end of the boom. A releasable linkage includes linkage between the unit fluid ram and the second member with the linkage having a portion pivotally supported on the boom and arranged so that pivotal movement of the unit fluid ram away from the boom during actuation thereof will automatically release the lock.

REFERENCES:
patent: 3811582 (1974-05-01), Shumaker
patent: 3921835 (1975-11-01), Baker

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