Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1983-09-09
1986-07-22
Underwood, Donald W.
Material or article handling
Vertically swinging load support
Shovel or fork type
74103, 212245, 414695, E02F 332
Patent
active
046016260
ABSTRACT:
Arrangement for swinging an attachment holder for the equipment of a hydraulic excavator around an axis perpendicular to the platform plane of the upper carriage, in a working direction parallel to the longitudinal direction of the excavator chassis. The lower part of the boom is vertically swingably fastened to the attachment holder which in turn is pivoted to the upper carriage by two radial links which are mounted at each end for turning around a vertical axis. The upper carriage is pivoted to the chassis. Furthermore the attachment holder is operatively connected to an active setting member. It is the pivoting of the carriage relative to the chassis together with the pivoting of the attachment holder relative to the carriage which enables the movement of the attachment holder in a working direction parallel to the longitudinal direction of the excavator chassis.
REFERENCES:
patent: 3452882 (1969-07-01), Noller et al.
patent: 3717269 (1973-02-01), Schaef
patent: 4261684 (1981-04-01), Norton et al.
patent: 4358240 (1982-11-01), Shumaker
patent: 4378193 (1983-03-01), Schaef
Heine Franz
Kowalewski Manfred
Farber Martin A.
Koppel Aktiengesellschaft
O&K Orenstein
Underwood Donald W.
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