| 摘要 |
The fundamental principle of the invention is that when a tool A is removed from a loader and an attachment arrangement 1 that belongs to it, parts of the attachment arrangement 1 are arranged in a position such that the attachment arrangement 1 is automatically placed into a locked position when a tool A is again mounted, or a second tool, when the tool A is placed in the correct position in contact with the attachment arrangement 1. The invention concerns an arrangement (1 ) for a loader that makes it possible to attach a tool (A) to the loader. The arrangement (1) comprises a locking arrangement (9) for determining the position of the tool (A) and locking it to the arrangement (1 ) in this position, and a safety arrangement (14) that ensures that the locking arrangement (9) takes up its locking position only when a tool (A) is correctly arranged at the attachment arrangement (1). The arrangement (1 ) is characterised by a part (17) that functions independently of the locking arrangement (14) and that can retain the locking arrangement (9) in an open position that does not perform the locking function, and a releasing part (18) that releases the locking arrangement (9) from the retaining part (17). The invention concerns also a method to be used when a tool (A) is to be removed from a loader in which the loader comprises an arrangement (1) according to the invention and a method to be used when a tool (A) is to be attached to a loader in which the loader comprises an arrangement (1 ) according to the invention.
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