Clip-on high load balance show for tilt window

Details Clip-on high load balance show for tilt window Clip-on high load balance show for tilt window

E - Fixed Constructions

05

D

E05D 15/22 (2006.01) E05F 1/00 (2006.01)

Patent

CA 2498171

A balance shoe mounts on a pair of cross bars in a rigid U-shaped channel by an upward facing slot on the shoe receiving one bar, and a downward facing channel on the shoe containing a resilient hook that hooks over the other bar as the shoe is rotated on the first bar to the bottom of the channel, a spring and pulley system in the channel supported by a cord attached to the window frame supports the sash along the vertical travel length of the sash. The sash is supported by a cam in the shoe that is turned by a pivot arm on the sash that is rotated by the sash as the sash rotates in and out of a window frame. The cam forces brake surfaces against the track to prevent vertical movement of the sash along the window frame when the sash is rotated out of the frame.

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