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US 2006/0130543 A1Published application
Sliding door lock
AssigneeAzuma Design Pty Limited
InventorsMichael Alchin, Richard Zitzelsperger
Life of this patent
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Abstract
A lock 10 for a sliding door or window. The lock 10 includes a hollow body 11 within which there is pivotally mounted a pair of hook tongues 14 and 15. The tongues are driven by rack gears 54 which are operated by a lock cylinder 19. The rack gears 54 move linearly in opposite directions to cause angular movement of the tongues 14 and 15 in opposite rotational directions.
Claims22
A lock including;
- a lock body;
- a first tongue pivotally mounted in the body for angular movement about an axis, the tongue being moveable between an extended position projecting from the body and a retracted position located at least substantially within the body;
- a second tongue pivotally mounted in the body for angular movement about an axis, said second tongue being moveable between an extended position projecting from the body and a retracted position at least substantially located within the body, the axis of said second tongue being generally parallel to the axis of said first tongue;
- a first slide mounted in the body for movement relative thereto and engaged with the first tongue to cause the movement thereof, the slide having a first rack gear;
- a second slide mounted in the body for movement relative thereto and engaged with the second tongue to cause the movement thereof, the second slide having a second rack gear;
- drive means to cause movement of both racks, and therefore slides, in synchronisation in opposite directions so that the tongues move generally in unison in opposite rotational directions between the extended and retracted positions of the tongues, said drive means including a gear meshingly engaged with both racks;
- and wherein
- said first slide projects from within the body so that said first slide has a portion that can be manipulated by a user to cause movement of the tongues.
5 more elements
Dependencies are inferred from the claim text.