Two point lock for bi-fold windows and doors
AssigneeSchlage Lock Company LLC
InventorsEdward Norton Sieglaar, Cristina Roman
Life of this patent
Estimating the term…
Abstract
A two point lock for securing bi-folding windows and doors in which upper and lower shoot bolt arms move in opposite directions from a central lock body upon rotation of a handle. When the arms are in their mutually extended positions, a sliding detent locking member engages the upper shoot bolt arm to secure the window or door in the closed position. The central lock body includes a rotating driver for the shoot bolt arms that is supported at both ends and is maintained in two different positions by interaction with the curved contact faces of a set of biasing pads.
Claims26
A two point lock for bi-fold windows and doors, comprising:
- a central lock body comprising a casing;
- a handle that is rotatable with respect to the lock body between a first rest position and a second rest position;
- first and second shoot bolt arms that move in opposite directions upon rotation of the handle and are maintained in a mutually retracted position when the handle is in the first rest position and in a mutually extended position when the handle is in the second rest position;
- a locking member moveable within the casing between a locked position in which the locking member is engaged with the first shoot bolt arm in its extended position, and an unlocked position in which the locking member is unengaged with the first shoot bolt arm;
- and
- an actuator for moving the locking member between its locked and unlocked positions when the shoot bolt arms are in their mutually extended position.
A two point lock for bi-fold windows and doors, comprising:
- a central lock body;
- a driver contained within the body so as to be rotatable by a handle;
- a plurality of biasing pads having curved contact faces that engage with recess in radial surfaces of the driver to maintain the driver in a first rest position and a second rest position;
- and
- first and second shoot bolt arms that move in opposite directions upon rotation of the driver and are maintained in a mutually retracted position when the driver is in the first rest position and in a mutually extended position when the driver is in the second rest position.
A two point lock for bi-fold windows and doors;
- comprising:
- a central lock body;
- a driver rotatably supported in the lock body at two different locations along the rotation axis of the driver;
- at least one biasing pad that interacts with the driver to maintain the driver in a first rest position and a second rest position;
- and
- first and second shoot bolt arms that move in opposite directions upon rotation of the driver and are maintained in a mutually retracted position when the driver is in the first rest position and in a mutually extended position when the driver is in the second rest position.
(canceled)
Dependencies are inferred from the claim text.