Lifting appliance with at least two implements to be used alternatively

摘要

The invention relates to a lifting appliance, in particular a hydraulic excavator or crane, having at least two implements (2), such as, for example, a clamshell bucket, a grapple, a lifting magnet or the like, which, depending on the task at hand, can alternatively be coupled to the carrier unit (1) by means of a coupling (3) and can be actuated by means of a pressure medium and/or electrically. The implement (2) coupled to the carrier unit (1) in each case is to be supplied with energy from an energy source on the carrier unit (1) via a supply feed line (14) and a supply line section (16) to be connected to the latter, arranged on the respective implement (2) and leading to the actuating device of the implement (2). In this arrangement, the coupling (3) has at least one first guide means (27), with which in each case an implement (2) provided with an adapted guide device (48) for the first guide means is to be moved under guidance from the driver's seat into a predetermined locking position relative to the coupling (3) during its relative approach to the implement (2), and at least one locking means (31, 38, 49) is provided, with which the implement (2) moved into the locking position is to be locked from the driver's seat during coupling, and there is at least one connecting means (67), with which the free end of the supply feed line (14) is to be automatically connected to the free end of the supply line section (16) when the implement (2) is coupled to the coupling (3). <IMAGE>