Forklift variable reach mechanism

Details Forklift variable reach mechanism Forklift variable reach mechanism

1986-12-11

1988-01-12

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414671, 414664, B66F 914

Patent

active

047188146

ABSTRACT:
A mechanism for use on a boom-type vehicle includes load lifting forks carried by a low profile twist-resistant carriage which is one link in a low profile parallelogram linkage attached to a fly section of the boom and maintained level in all positions of the boom by a slave cylinder connected between the boom and a slave link which constitutes a member of the parallelogram linkage. The mechanism can be adjusted to many positions while automatically maintaining the relative position of the forks with respect to the vehicle frame for any boom angle. The mechanism can be adjusted to provide a long reach over or under obstructions in order to remove or place a load. It may also engage loads below ground level. Load pick-up or placement can be performed in confined areas which are unreachable by conventional forklift trucks.

REFERENCES:
patent: 3754673 (1973-08-01), Barda et al.
patent: 4279564 (1981-07-01), Weinert
patent: 4360309 (1982-11-01), Reeves
patent: 4449882 (1984-05-01), Perrott
patent: 4523887 (1985-06-01), Reiff
patent: 4533290 (1985-08-01), Hackauf
patent: 4632630 (1986-12-01), Maki et al.

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