Backhoe hammer

Details Backhoe hammer Backhoe hammer

1985-12-30

1989-12-05

Watts, Douglas D.

Tool driving or impacting

Impacting devices

Hammer head moves in arcuate path or rotates

414724, 37DIG12, 173 46, B23B 4516

Patent

active

048846414

ABSTRACT:
A backhoe assembly (10) comprises a boom (12) for pivotal attachment to a machine (11). A bucket (14) is pivotally supported by the boom (12) for rotation about a support axis (16). A hydraulic cylinder (34) having a piston rod (36) raises and lowers the boom (12) and rotates the bucket (14) about the support axis (16) between an open and closed position. The assembly (10) is characterized by a hammer (20) supported in a cantilevered fashion for pivotal movement about the support axis (16) by the bucket (14) between a cocked position on a cocked side of an over-center position and a released free-fall position on the other side of the over-center position.

REFERENCES:
patent: 1731985 (1929-10-01), Reaney
patent: 3915501 (1975-10-01), Cobb et al.
patent: 3990595 (1976-11-01), Cobb et al.
patent: 4602821 (1986-07-01), Schaeff

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