MECHANISM FOR FASTENING IN A SWIVELLING MANNER A PLATE CARRIER TO A TELESCOPIC MAST OF A PLATE LIFTING APPARATUS AND PLATE LIFTING APPARATUS EQUIPPED WITH THIS MECHANISM

摘要

The invention proposes a reliable swivelling fastening mechanism that limits the risk of injuries is inexpensive and ergonomic allowing a plate to be horizontally obliquely and vertically fastened and easy to service. The swivelling fastening mechanism (100) comprises in the position of use: a vertical supporting profile (10) to be arranged at the top of the mast coaxially to the mast; two parallel backing plates (20) mounted so as to swivel on the supporting profile (10) and interconnected on one side by a plate carrier fastening component (30) and on the other side by a U shaped vertical position stop (40) attached to the backing plates and arranged in such a way that the plate carrier fastening component (30) is parallel to the supporting profile (10) when the supporting profile is in contact with the vertical position stop (40); and a retractable stop (50) supported by at least one backing plate in such a way that the plate carrier fastening component (30) forms an angle between 10° and 80° with the supporting profile when the supporting profile is in contact with the retractable stop (50).