Patent ID: 7198423

Claim:
An angle accessory serving to establish continuity between two skirting duct segments running along two walls that are at an angle to each other, said angle accessory comprising two distinct flaps provided with assembly means that co-operate to allow said flaps to pivot about a pivot axis in order to take different angular positions one to each other, said assembly means comprising firstly, at one end of lips of a first flap, two male engagement elements extending along the pivot axis, and, secondly at one end of lips of a second flap, two female engagement elements with a same axis and designed to receive said male engagement elements, wherein, in the vicinity of said male engagement elements, the first flap is provided with at least one flange projecting from one of its end edges and forming an obstacle before at least one of said male engagement elements, said flange having two opposed free edges, namely a top edge and a bottom edge, separate from said lips, one of said top and bottom edges delimiting with one end edge of at least one lip of said first flap one passageway through which goes one of said female engagement elements to access to said male engagement elements, said passageway having a small height constraining said flaps to be assembled together by bringing the second flap towards the first flap with said axis of said female engagement elements of said second flap inclined relative to said pivot axis of the first flap in order to insert said female engagement elements into said passageway defined between said flange and a corresponding lip, and then by pivoting said second flap for straightening up one of said axis of said female engagement elements along the pivot axis so as to engage successively said female engagement element over a corresponding male engagement element and then one of the other female engagement elements over a corresponding one of the other male engagement elements.