A sash window counterbalance brake arrangement

Details A sash window counterbalance brake arrangement A sash window counterbalance brake arrangement

E - Fixed Constructions

05

D

E05D 13/00 (2006.01) E05D 15/22 (2006.01)

Patent

CA 2492578

A locking balance shoe (42) for a sash window counterbalance arrangement. The balance shoe (42) comprises at least one moveable locking abutment element (58,60). A cam (44) of the balance shoe (42) is moveable to operatively move and urge the locking abutment elements (58,60) from the first unlocked position to a second engaged locking position. The at least one moveable locking abutment element (58,60) is diagonally movable and is moved diagonally by the cam (44) and in the second engaged position the at least one moveable locking abutment element (58,60) engages and abuts against and within a corner region of the window jamb channel (32) between a pair (11,13) of walls of the window jamb channel (32) to frictionally lock the balance shoe (42) in place.

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