Spring balance assembly

Details Spring balance assembly Spring balance assembly

E - Fixed Constructions

05

D

E05D 13/00 (2006.01) E05C 17/64 (2006.01) E05D 15/22 (2006.01)

Patent

CA 2422566

The present invention provides a balance assembly (10) for use with a sash window assembly ( 104) slidable within a master frame (110). The balance assembly (10) generally includes a plate (20), at least one coil (40), and a shoe or pivot brake assembly (60). The plate (20) is adapted to be attached to the master frame (110). The spring (40) has a coiled portion (42), an intermediate portion (43), and a free portion (44). The coiled portion (42) of the spring (40) is rotatably supported by a support member (30) extending from the plate (20). The free portion (44) of the spring (40) has a curved configuration with a curved end (46). The pivot brake assembly (60) has at least one slot (76) adapted to receive and retain the free portion (44) of the spring (40). The slot (76} defines a protrusion (83) that engages the free portion (44).

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