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US 10,246,914 B2Granted
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.
Claims25
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;
- a rotating driver coupled to the handle for rotation therewith, the driver including a pair of opposing members having a gap defined therebetween;
- 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, and wherein each of the first and second shoot bolt arms extends into the gap, a portion of each of the first and second shoot bolt arms that is positioned within the gap between the pair of opposing members being rotably displaceable within the gap via rotation of the driver and pivotably connected to the driver through a corresponding pivot, each pivot having a first end supported by one of the opposing members and an opposite second end supported by the other of the opposing members;
- 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.
4 more elements
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, the driver including a first follower and a second follower offset from the first follower along the rotation axis, wherein opposing faces of the first follower and the second follower face one another such that a gap is located therebetween, and wherein each of the first follower and the second follower is rotatably supported at a corresponding one of the two different locations along the rotation axis;
- 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, wherein each of the shoot bolt arms extends into the gap and is pivotally connected to each of the first follower and the second follower via a corresponding and respective pivot, each pivot having a first end portion pivotably supported by the first follower and a second end portion pivotably supported by the second follower.
3 more elements
A lock, 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;
- a rotating driver coupled to the handle for rotation therewith, the driver including a first follower and a second follower, wherein the first follower and the second follower are offset from one another along a rotational axis of the driver such that an annular gap is formed between the first follower and the second follower, and wherein each of the followers includes a first recess and a second recess;
- 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, wherein each shoot bolt arm includes a corresponding and respective end portion that is positioned in the annular gap such that the end portion is captured between the first follower and the second follower, wherein each of the end portions is pivotally connected to each of the drivers via a corresponding and respective pivot pin that extends between the followers, each pivot pin having a first end portion supported by the first follower and a second end portion supported by the second follower;
- a biasing mechanism comprising a plurality of biasing pads including a first biasing pad and a second biasing pad, wherein each of the biasing pads includes a curved contact face;
- wherein with the handle in the first rest position, the curved contact faces of the first biasing pad and the second biasing pad are engaged with the first recesses such that the biasing mechanism resists rotation of the handle from the first rest position;
- and
- wherein with the handle in the second rest position, the curved contact faces of the first biasing pad and the second biasing pad are engaged with the second recesses such that the biasing mechanism resists rotation of the handle from the second rest position.
5 more elements
Dependencies are inferred from the claim text.