Grapple claw attachment for a backhoe

Details Grapple claw attachment for a backhoe Grapple claw attachment for a backhoe

1997-11-21

1999-04-06

Kramer, Dean

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

294 88, 414739, 414912, B66C 316

Patent

active

058907548

ABSTRACT:
A grapple claw for attachment to a backhoe adapted to be interchangeable with a standard backhoe bucket. Grapple claw (10) includes a main frame member (50), a pivoting stop member (52) that engages the arm (30) and restricts the rotation of the frame (50) around the arm's distal end (35). Grapple claw (10) also includes at least a pair of opposing interlocking claws (54) and (56), respectively pivotally secured to the frame (50). In this regard, claw (54) pivots about fulcrum point (55) and claw (56) pivots about fulcrum point (57). A rotation imparting device (60) is pivotally connected between ram (45) and claws (54) and (56) for applying moments in opposite directions about fulcrum points (55) and (57) to effect the opening and closing of claws (54) and (56). Thus the opening and closing of claws (54) and (56) is accomplished by a single hydraulic ram is accomplished and the necessity for an auxiliary hydraulic circuit and associated ram is alleviated.

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