Abstract: A buffer with a self-adjustable stopper including a buffer head, a base having a guide profile, and a central body having a groove cooperating with the profile, the central body being mounted on the base by a translation movement, in a first direction (X) in a plane of movement, the central body at least partially receiving the buffer head. The buffer head includes a locking member inserted into the central body in a second direction (Y) and blocks in a third direction (Z) the buffer head in the central body and blocking in the first direction the central body on the base. The locking element and the buffer head include, respectively, at least one thrust ramp and at least one housing adapted to receive said at least one ramp adapted to, when the locking member is translationally actuated, produce a camming effect and to allow raising of the buffer head.

Abstract: A quarter-turn fastening device for fastening a part to a support comprising comprises: a head carrying the part and intended to rest on a first face of the support; and a holding foot connected to the head and extending along a main axis, the holding foot configured to penetrate axially into an opening of the support, thereby placing the fastening device in an insertion position. The holding foot comprises at least one flexible retaining tab for resting on a second face of the support when the fastening device is moved angularly from the insertion position to a locking position. The flexible tab carries a lug to fill the space between the holding foot and an edge of the opening and thus refocus the fastening device in the opening when the fastening device is moved angularly from the insertion position to the locking position.

Abstract: A buffer with a self-adjustable stopper including a buffer head, a base having a guide profile, and a central body having a groove cooperating with the profile, the central body being mounted on the base by a translation movement, in a first direction (X) in a plane of movement, the central body at least partially receiving the buffer head. The buffer head includes a locking member inserted into the central body in a second direction (Y) and blocks in a third direction (Z) the buffer head in the central body and blocking in the first direction the central body on the base. The locking element and the buffer head include, respectively, at least one thrust ramp and at least one housing adapted to receive said at least one ramp adapted to, when the locking member is translationally actuated, produce a camming effect and to allow raising of the buffer head.