Operating arm for an earth-moving and foundation machine

Details Operating arm for an earth-moving and foundation machine Operating arm for an earth-moving and foundation machine

1983-04-08

1987-12-01

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating to or from oscillating

74479, 2482811, 414917, B25J 906, F16H 2104, G05G 1100

Patent

active

047095881

ABSTRACT:
An operating arm for earth-moving or foundation machines consisting of an upper and a lower arm pivotally connected via a device for equal angular movement for guidance of various tools on a straight-line force path of great length. The direction of this path is variable by means of a force control basic guide lever. If said basic lever is turned during the straight-line movement, superimposing the two movements cause curving of the forced path. If rapid return is provided, excavation may be performed in either one or the other direction and a drilling or ramming tool may be raised or lowered with higher force. Rotation into a load carrying position is provided for excavator buckets.

REFERENCES:
patent: 521256 (1894-06-01), Browne
patent: 717121 (1902-12-01), Richardson
patent: 2656058 (1953-10-01), Foote
patent: 2900830 (1959-08-01), Eisenburger et al.
patent: 3094228 (1960-04-01), Peterson
patent: 4234150 (1980-11-01), Mee et al.

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