Boom lock

Details Boom lock Boom lock

1980-07-07

1983-01-25

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414685, 414722, 212189, E02F 332

Patent

active

043700900

ABSTRACT:
A lock for holding a boom in a storage position on a boom support is disclosed herein. The lock consists of a first member or vertical pin that is carried by the boom support, a second member or locking ring that is pivoted on the boom about a horizontal axis and that has an opening for receiving the first member, and a deformable biasing element or spring interconnecting the first and second members. The second member is biased to a first position by the spring and engages the vertical pin when the boom is moved to its storage position. When the opening in the locking ring and the vertical pin are axially aligned, the spring returns the second member to the first position latching the first and second members together.

REFERENCES:
patent: 3921835 (1975-11-01), Baker
patent: 4184803 (1980-01-01), Housman
patent: 4227852 (1980-10-01), Schmitz
patent: 4273502 (1981-06-01), Maurer
patent: 4304520 (1981-12-01), Schmitz

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