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(11) | EP 1 156 161 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Quick-coupling device for attaching tools to an excavator |
| (57) Quick-coupling device for attaching a tool (2) to an excavator comprising at least
one main working arm (1); this device comprises a main body (3) provided with two
side walls (306) each connected at the rear to this working arm (1) by a pin (401)
housed in holes (301) in these walls (306) to allow it to be rotated relative to the
said arm (1) by the movement of excavator levers (5) connected to the body (3) by
a pin (40) housed in holes (302) in these walls (306) and at the front to upper walls
(205) of this tool (2) by second pins (7) for locking them onto this tool (2); and
these second pins (7) are able to extend out of these side walls (306) and be housed
in holes (204) formed in these upper walls (205) of the tool (2) under the action
of control means (8) mounted in this body (3) for automatically inserting and removing
them into and from these holes (204), these upper walls (205) being provided with
rear hook means (203) for attaching the tool (2) to pins (4). |