Spring mounting for sash window tensioning arrangements

Details Spring mounting for sash window tensioning arrangements Spring mounting for sash window tensioning arrangements

E - Fixed Constructions

05

F

E05F 1/16 (2006.01) E05D 13/00 (2006.01) E05F 1/00 (2006.01)

Patent

CA 2361261

A sash window counterbalance spring mounting arrangement for fitment into a channel section within a window jamb. The arrangement comprises at least two coiled ribbon springs, a spring support mounting comprising support means for each of said at least two coiled ribbon springs to support and locate said coiled ribbon springs to the spring support mounting, and locating means adapted, in use, to locate the spring support mounting within and to said channel section. The spring support mounting comprises a single integral component from which the support means depend and from which the at least two springs are located and supported. The support means may comprises sets of pairs of triangular cross section integral projections which extend from the rear surface of the main body portion. An end portion of the main body portion of the support mounting is curved. Wing projections may extend from the front surface of the main body of the spring support mounting. On the longitudinal end of the support mounting there are inter engagement means for cooperative engagement with cooperative inter engagement features on a sash shoe. The support means of the spring support mounting are disposed on the spring support mounting such that in use when the at least two springs recoil rapidly an outer surface of adjacent springs contact each other.

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