EP 0117261 B1 19850814 - OPERATING ARM FOR EARTH-MOVING AND FOUNDATION MACHINES
Title (en)
OPERATING ARM FOR EARTH-MOVING AND FOUNDATION MACHINES
Publication
Application
Priority
EP 83101851 A 19830225
Abstract (en)
[origin: US4709588A] 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.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
E02F 3/42 (2013.01 - EP US); E02F 3/963 (2013.01 - EP US); Y10S 414/13 (2013.01 - EP US); Y10T 74/18928 (2015.01 - EP US); Y10T 74/20207 (2015.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0117261 A1 19840905; EP 0117261 B1 19850814; DE 3360544 D1 19850919; US 4709588 A 19871201
DOCDB simple family (application)
EP 83101851 A 19830225; DE 3360544 T 19830225; US 48332083 A 19830408