Patent ID: 8991933
Filing Date: 2015-03-31
Classification: A61G

Abstract:
1. A backrest intended to be connected to a wheelchair frame comprising a first lateral end, a second lateral end, a front side and a back side, at least one pair of side wings, namely a first side wing and a second side wing, that may be generally vertically oriented when connected to the wheelchair frame, and connectors configured to fixedly connect the first side wing and the second side wing to the wheelchair frame, wherein at least one first transverse profile of the first side wing and at least one associated second transverse profile of the second side wing are at least partially mutually embraced in a slidable manner, the at least one first transverse profile and the at least one second transverse profile being dimensioned and configured so that the mutual slidably embracement of the at least one first transverse profile and the at least one second transverse profile is made on a range of distances enabling the width adjustment of the backrest, the mutual embracement of the at least one first transverse profile and the at least one second transverse profile being configured to prevent the side wings from disengaging from each other in a direction other than the slidably direction of the side wings and the first transverse profiles, respectively the second transverse profiles, being at least partially linked together so as to define approximately a continuous surface (S and wherein at least one first transverse profile comprises at least one hollow buckle in which the associated at least one second transverse profile is engaged in order to prevent the side wings from disengaging from each other in a direction other than the slidabley direction of the side wings.