Cam adjustment device for adjustable casement sash unit

Details Cam adjustment device for adjustable casement sash unit Cam adjustment device for adjustable casement sash unit

1991-12-26

1992-10-06

Kannan, Philip C.

Movable or removable closures

Mounted for multidirectional or oblique movement

Swings on plural axes; e.g., pivotal link arms

49396, E05D 1530

Patent

active

051521024

ABSTRACT:
A track and hinge assembly for swingably mounting a casement sash unit in a window frame includes a track secured to the window frame and a toggle hinge interconnecting the track and the casement window sash. The toggle hinge includes a long toggle link and short toggle link interconnected together and slidably and pivotally connected to the track. The short toggle link is pivotally connected to the track by an adjustable pivot connection, including an octagonally-shaped cam positioned within an octagonal cam opening in the short toggle link. The octagonal cam has an eccentric opening therein through which the track pivot post projects. The octagonal cam may be removed from the cam opening in the short toggle link, and repositioned in the opening to shift the pivotal connection longitudinally of the short toggle link from a centered position in either direction to thereby overcome problems of sash sag during or after installation of the casement window unit.

REFERENCES:
patent: 4790106 (1988-12-01), La See
patent: 5074075 (1991-12-01), La See

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