| 摘要 |
<p>A panel for building multi-panel sliding-folding doors, said panel comprising an intermediate member (4) provided with an elongated male member (12) and an elongated female member (14) engaging a female member (14') and a male member (12') of two adjacent panels, respectively, characterized in that: said intermediate member (4) is formed by two metal sheets (6, 8) with a layer (10) of insulating material sandwiched therebetween, said male member (12) is provided with a curved portion (22) and with a pawl-shaped portion (26) having a curved outer wall (28), both portions being connected to a cylindrical sleeve (24), both said curved portion and wall (22, 28) having the shape of arcs of circle with their centers of curvature coincident and located on the axis of said cylindrical sleeve (24), said female member (14) is provided with a curved inwardly projection (38) the shape of which is substantially complementary to the outer surface of said sleeve (24) which rotatably rests on said projection (38) and is retained by a blocking means (46) applied to a flat portion (36) of said female member (14), on a tab substantially in contact with and rubbing against said curved portion (22) of the male member (12) when this latter (12) is rotated in respect of the former (14), said female member (14) being provided on the side opposite to that carrying the curved projection (38) with a curved reinforcing rib (48) in form of arc of circle whose center of curvature is located on the axis of said leeve (24). <IMAGE></p> |
