Door brake

Details Door brake Door brake

1995-08-24

1997-03-25

Reese, Randolph A.

Excavating

Scoop or excavating and transporting container

Scoop or bucket structure, per se

37444, 414726, 16375, 16 86C, 74526, 267154, E02F 3407

Patent

active

056133081

ABSTRACT:
A door brake assembly (20) to control the closing of a dipper door (11) on a shovel dipper (10) has a torsion bar (39) connected to the dipper door (11) by links (15, 32). A lever (48) on the other end of the torsion bar (39) selectively engages spaced snubbers (57, 58) to provide a braking (or damping) action to the dipper door (11) in the last portion of its travel to the open or closed position. The torsion bar (39) is mounted in journals (23, 24, 43, 44) on a base (22) mounted on the dipper (10). Usually, each dipper door (11) is provided with a pair of the brake assemblies (20) mounted in mirror image.

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