Retractable thumb

Details Retractable thumb Retractable thumb

1998-02-26

1999-07-27

Underwood, Donald W.

Material or article handling

Vertically swinging load support

Grab

37403, 37406, 414724, E02F 376

Patent

active

059279338

ABSTRACT:
A retractable thumb for a bucket is provided including a bucket assembly which has a bucket arm with an inboard portion and an outboard portion. Next provided is a thumb including an inboard edge pivotally coupled to the outboard portion of the bucket arm. A hydraulic assembly includes a first hydraulic arm for moving the bucket and a second hydraulic arm for moving the thumb. Finally, a recess is formed in the outboard portion of the bucket arm for accepting the thumb therein for storage purposes.

REFERENCES:
patent: 4375345 (1983-03-01), Hanson
patent: 4403906 (1983-09-01), Holopainen
patent: 5678332 (1997-10-01), Hawkins

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