| 摘要 |
PCT No. PCT/EP91/00073 Sec. 371 Date Sep. 23, 1991 Sec. 102(e) Date Sep. 23, 1991 PCT Filed Jan. 17, 1991 PCT Pub. No. WO91.11565 PCT Pub. Date Aug. 8, 1991.A device for the quick coupling of a front work attachment on excavators, particularly for the quick coupling of excavator shovels, having two coupling plates (4, 4a, 20, 20a) at the free end (1) of the excavator boom (2) on the one hand and at the work equipment (3) on the other hand, provides a solution through which the consequences of appearances of wear at the locking elements in the coupling for receiving and changing a front work attachment for an excavator boom can be sharply reduced, wherein a quick coupling of the work equipment at the excavator boom is simultaneously ensured. This is achieved in that the locking element (18, 24) engages in at least one of the catch recesses (10, 25, 26) of the coupling plate (4a, 20a) in the coupling position. |
