| 主权项 |
1. A fastening device for fastening a panel to a wall with a high resistance to pulling off, comprising a male member to engage on the panel and a female member to engage on the wall, the male member and the female member being configured for the female member to be able to receive and retain the male member releasably, characterized in that:
in order for the female member to receive and retain the male member, the male member comprises a foot having a spike which narrows from a shoulder towards the distal end of the foot, while the female member comprises a cavity for reception of said spike and an elastic part extending across the reception cavity, which is configured to bend in contact with the spike, on a thrusting-in movement of the foot into the, cavity, and to relax when the spike has passed beyond it in order to arrive opposite the shoulder to prevent the withdrawal of the; spike; to release the male member from the female, member, the female member comprises an actuating part to dispose the elastic part clear of the shoulder of the foot, the actuating part projecting radially outwards; for its engagement on the periphery of an aperture of the wall having a contour having two crenels facing each other and two circle arcs facing each other and each extending from one to the other of the crenels, the female member comprises, rearward of the actuating, part, a butt having:
an outside lateral surface having at least one first cylindrical portion and a second cylindrical portion diametrically opposite the first cylindrical, portion,two bearing skids each jutting radially respectively from said first cylindrical portion and said second cylindrical portion of said outside lateral surface of the butt, each bearing skid having a contact surface for contact with the wall,two insertion fins each projecting radially respectively from said first cylindrical portion and from said second cylindrical portion of said outside lateral surface of the butt, each insertion fin being rearward of and aligned with a respective bearing skid, each insertion fin having, facing the contact surface of the corresponding bearing skid, a contact surface for contact with the wall each insertion fin having a contour set back from the contour of the corresponding bearing skid, andat least one locking fin projecting radially from said outside lateral surface of the butt between the two insertion fins, having the same contour as one of the insertion fins; and to index the angular position of the female member in relation to the wall, in order for the actuating part of the female member to be turned towards an outside edge of the wall, each insertion fin has a different contour from the contour of the other insertion wing. |
