Excavator bucket linkage

Details Excavator bucket linkage Excavator bucket linkage

Filed on

1981-04-27

Date issued

1983-04-26

Examiner

Spar, Robert J.

Patent Class

Material or article handling

SubClass

Vertically swinging load support

SubSubClass

Shovel or fork type

Other Related Categories

414723, 414917, E02F 358

Type

Patent

Status

active

Patent number

043811671

Description

ABSTRACT:
First and second excavator bucket linkage embodiments each include first, second, third and fourth links. Each embodiment includes first and second links pivotally interconnected to each other and to the rod end of an extensible and retractable hydraulic actuator with the first link also being pivotally connected to the bucket. In the first embodiment, the third and fourth links are arranged in general parallelism with each other and have respective first ends pivotally connected to the second link and respective second ends pivotally connected to the dipper stick. In the second embodiment, the third link is pivotally connected between the dipper stick and the second link while the fourth link is pivotally interconnected between the third link and the bucket.

REFERENCES:
patent: 3251491 (1966-05-01), French et al.
patent: 4256432 (1981-03-01), Sugiyama

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