| 摘要 |
A hinge for doors, windows and similar destined for mounting on a metal frame (110), comprising: a hinge element (124), an anchorage plate (142) with a mating surface (144) destined to rest against an undercut surface (120) of the frame (110) and a number of teeth (150) protruding from the contact surface (144), and at least one screw (130) that is used to engage a seat (136) of the hinge element (124) and a hole (140) on the anchorage plate (142) to tighten the mating surface (144) of the anchorage plate (142) against the undercut surface (120) of the groove (112), so as to force the teeth (150) to bite into the material forming the frame (110). The said teeth (150) have a pyramidal shape with a triangular base and a vertex (164) arranged in correspondence to the external border (146) of the mating surface (144) such that when used, the vertex of each of the said teeth (150) bites into the corner (166) defined between an undercut surface (120) and the corresponding side surface (118) of the said groove (112). <IMAGE> |
