Patent ID: 6393661
Filing Date: 2002-05-28
Classification: E05D,E05Y,Y10S,Y10T

Abstract:
A sash window counterbalance arrangement for counterbalancing the weight of a sash windows, comprising:a sash window jamb with a channel defined within said sash window jamb and having a rear wall and a pair of side walls, a sash window shoe slidable in said channel, a spring arrangement connected at one end to said sash shoe, and a spring support mounting fitted within said channel to support said spring arrangement such that in use a spring force is generated between said spring support mounting and sash shoe to counterbalance the weight of said sash window, the spring support mounting comprising at least one mounting peg which projects from said spring support mounting to engage a mounting aperture defined within one of said channel walls to locate and secure said spring support mounting relative to said channel, wherein said at least one mounting peg and aperture are arranged such that the spring support mounting is secured and located against slidable movement, in use, in a first direction due to the spring force, while movement of the spring support mounting in an opposite direction causes disengagement of the at least one mounting peg from the aperture.