Universal window sash lock for a variety of windows

Details Universal window sash lock for a variety of windows Universal window sash lock for a variety of windows

E - Fixed Constructions

05

C

E05C 9/02 (2006.01) E05C 9/18 (2006.01)

Patent

CA 2050040

A universal lock for securing any of a variety of different design window sashes closed against any of a variety of different design window frames. The lock in- cludes a pair of spaced keepers on the window sash, and a tie bar mounted to the window frame and having a pair of rollers thereon. The tie bar is reciprocable along its axis to selectively move the rollers into or out of engage- ment with the keepers of the closed window sash to selec- tively lock or release the sash from the frame. A base pivotally mounts a handle member to the window frame. A coupler link is pivotally secured at one end to the handle member and has a flange at the other end pivotally secured to the tie bar. The flange has a narrow portion with a first width adjacent the coupler link and a wide portion with a second width spaced from the coupler link. The tie bar includes an opening with a substantially circular por- tion having a diameter greater than the first width and less than the second width, and a slot portion wider than the second width. The coupler link is positioned at a non- operational angle relative to the tie bar during assembly to allow passage of the flange wide portion through the tie bar opening slot portion. The flange wide portion thereaf- ter holds the coupler link to the tie bar with the flange narrow portion pivotable within the tie bar opening circu- lar portion during operational (i.e., locking and releas- ing) pivoting.

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