Profile fillet retention lip - is sufficiently thin and long to roll up on fillet removal from retention flange

摘要

A profile fillet is adapted for positioning on a retention flange. The fillet is U-shaped, and the holding lip of the fillet locates on the retention flange and is made of soft material, which is supported by a support surface which is wedge-shaped in cross-section, narrowing towards it opening. The lip (11) is of such a thickness and length that when the profile fillet (1, 2) is withdrawn from the retention flange (16), it rolls up between the flange and the support surface. The free end of the lip, in the rest position, supports against the upper surface of the retention flange (16) at an angle of less than 60 deg.