Linkage mechanism for digging implement

Details Linkage mechanism for digging implement Linkage mechanism for digging implement

E - Fixed Constructions

02

F

214/27

E02F 3/30 (2006.01) E02F 3/38 (2006.01) E02F 3/42 (2006.01)

Patent

CA 1111384

LINKAGE MECHANISM FOR DIGGING IMPLEMENT Abstract A crane-excavator or the like has a boom, a saddle, a translatable stick and a digging implement. A stick cylinder and implement cylinder are provided. The ends of the stick and implement cylinder rams are connected to common lever arms which are pivoted to the stick on a trans- verse axis which is offset from the ram-lever connections and form the stick center line. The lever arms are connected to the digging implement in a manner so that the combined forces from both rams are transmitted to the implement to pivot the latter about its axis. The simultaneous movement of the stick cylinder ram and the implement cylinder ram causes the stick to extend or retract, thus causing a shift of the implement- stick pivot axis relative to the saddle. The implement may be raised or lowered even when the stick ram is fixed in length. -0-

322376

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