Releasable boom lock

Details Releasable boom lock Releasable boom lock

1979-06-04

1981-07-14

Paperner, Leslie J.

Material or article handling

Vertically swinging load support

Shovel or fork type

212189, 414722, E02F 332

Patent

active

042783941

ABSTRACT:
A device for locking a boom to a boom support structure as used in earthworking implements is described. A lug having a camming surface is provided on the boom or on the boom support structure as the case may be. The opposite structure is provided with a pivoted arm joined to a lock pin. Motion of the boom toward the boom support structure engages the lock pin and camming surface. Continued movement boom toward the boom support structure forces the lock pin over the lug. Subsequent movement of the boom away from the boom support structure so as to separate the two is prevented by virtue of the lock pin engaging the back side of the lug. A pull cable actuated by the equipment operator disengages the lock pin from the cam thereby permitting free movement of the boom and boom support structure. A bias spring maintains the pivot arm and lock pin in one position unless the lock pin engages the camming surface of the lug.

REFERENCES:
patent: 3365214 (1968-01-01), Garnett
patent: 3376984 (1968-04-01), Long
patent: 3734320 (1973-05-01), Redenbarger
patent: 3811582 (1974-05-01), Shomaker
patent: 3921835 (1975-11-01), Baker
patent: 3951281 (1976-04-01), Parquet
patent: 3955695 (1976-05-01), Maurer
patent: 4039093 (1977-08-01), Schmitz, Jr.
patent: 4184803 (1980-01-01), Housman
patent: 4189278 (1980-02-01), Dewey

Affiliated with

Also associated with

Rating

Releasable boom lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Releasable boom lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Releasable boom lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2162704