Window or door lock system
View Patent ↗A window or door includes a frame mounted to a building. The frame has first and second side jambs, a frame closure in the form of a window or door has a first side edge pivotally mounted to the first side jamb of the frame for opening and closing the closure member relative to the frame. The closure member has a second side edge which locates adjacent the second side jamb of the frame when the closure member is closed. The second side edge of the closure member includes a first lock part. The second side jamb of the frame includes a channel extending lengthwise of the frame. The channel has a channel mouth along its length, which faces interiorly of the frame. Undercut channel regions are provided to each side of the channel mouth. A slide bar is slideably fitted in the channel and a second lock part is secured to the slide bar. The second lock part protrudes through the channel mouth and when the closure member is closed with the frame the slide bar slides the second lock part into and out of locking engagement with the first lock part on the second side edge of closure member.
1. A window or door lock system, said system comprising a frame mounted to a building, said frame including first and second side jambs, a frame closure member having a first side edge pivotally mounted to said first side jamb for opening and closing said closure member relative to said frame, said closure member having a second side edge which locates adjacent said second side jambs of said frame when said closure member is closed, said second side edge including a first lock part, said second side jamb of said frame including a channel extending lengthwise thereof, said channel having a channel mouth along the length of said channel and facing into said frame and undercut channel regions to each side of said channel mouth, a slide bar slideably fitted in said channel and a second lock part secured to said slide bar, said second lock part protruding through said mouth of said channel and when said closure member is closed with the frame said slide bar sliding said second lock part into and out of locking engagement with said first lock part on said second side edge of said closure member.
2. A window or door lock system as claimed in claim 1 including a slide bar control pivotally mounted on said second side jambs of said frame and having a bar connecting part fitted through said mouth of said channel with said slide bar.
3. A window or door lock system as claimed in claim 2 wherein said channel has a first side surface which forms a closure stop for said second side edge of said closure member when said closure member is closed, said first lock part extending over said channel member when said second side edge of said closure member is stopped against said first side surface of said channel in a position where said first lock part is to receive said second lock part which slides with said slide bar into the locking engagement with said second lock part.
4. A window or door system as claimed in claim 3 wherein said first side surface of said channel faces an exterior part of said frame, said channel including a second side surface facing an interior side of said frame, said system including a mount for said slide bar control, said slide bar control, said mount being located on the interior side of said frame.
5. A window or door lock system as claimed in claim 1 wherein said second lock part has a head mounted to said slide bar and trapped by said undercut regions in said channel, said second lock part further including a stem which is of reduced diameter relative to said head for fitting through said mouth post of said undercut regions of said channel.
6. A window or door lock system as claimed in claim 5 wherein said slide bar including spaced openings lengthwise thereof, said stem of said second lock part extending part said head and locating within one of said openings in said bar.
7. A window or door lock system as claimed in claim 5 wherein said second lock part is secured to said slide bar prior to fitting said slide bar into said channel.
8. A window or door lock system as claimed in claim 1 wherein said frame has an extruded vinyl construction, said channel forming an integral part of said construction.