Integrated lock and tilt-latch mechanism for a sliding window
AssigneeTruth Hardware Corporation
InventorGlen Wolf
Life of this patent
Estimating the term…
Abstract
An integrated lock and tilt-latch mechanism for a sliding window including an actuator assembly operably connected by a flexible linking member to at least one tilt-latch mechanism adapted for mounting in a window sash. The actuator assembly includes a control lever that rotates a sweep cam and a selectively rotates a spool, thereby locking or unlocking the sliding window or actuating the tilt-latch mechanism. At least one biasing member causes the control lever to favor locked or unlocked positions over intermediate and tilt positions.
Claims15
An integrated lock and tilt-latch mechanism for a sliding window, the window including a frame with a sliding sash therein, the sash tiltably positionable relative to the frame, the mechanism comprising:
- a tilt latch adapted for mounting on the sash, the tilt latch having a tilt-latch housing and a plunger;
- a flexible linking member operably coupled with the plunger of the tilt latch;
- and
- an actuator mechanism adapted for mounting on the sash, the actuator mechanism having a tilt-latch actuator member and a biasing member that are operably coupled to a control lever, wherein the control lever comprises a shaft operably connected to a cam and a gear, and wherein the tilt-latch actuator member has a gear sector selectively engageable with the gear to enable rotation of the tilt-latch actuator member, the flexible linking member operably engaged with the tilt latch actuator member;
- wherein:
- the tilt-latch actuator member has an axis of rotation offset from an axis of rotation of the control lever;
- the control lever is selectively positionable between a locked position in which the sliding sash is substantially immovable relative to the frame, an unlocked position in which the sliding sash is liftable relative to the frame, and a tilt position in which the sliding sash is tiltable relative to the frame, the unlocked position being intermediate the locked position and the tilt position;
- and
- the biasing member is adapted to urge the control lever to the unlocked position through a first rotational range of travel of the control lever extending from the tilt position toward the unlocked position, and to urge the control lever to the unlocked position through a second rotational range of travel extending from a point intermediate the locked position and the unlocked position toward the unlocked position.
An integrated lock and tilt-latch mechanism for a sliding window, the window including a frame with a sliding sash therein, the sash tiltably positionable relative to the frame, the mechanism comprising:
- a pair of tilt latches adapted for mounting on the sash, each tilt latch having a tilt-latch housing and a plunger;
- a flexible linking member coupled with the plunger of each tilt latch;
- and
- an actuator mechanism adapted for mounting on the sash, the actuator mechanism having a tilt-latch actuator member operably engaged with the flexible linking member and operably coupled to a control lever, the control lever comprising a shaft operably connected to a cam and a gear, and wherein the tilt-latch actuator member has a gear sector selectively engageable with the gear to enable rotation of the tilt-latch actuator member, the control lever selectively positionable between a locked position in which the sliding sash is substantially immovable relative to the frame, an unlocked position in which the sliding sash is liftable relative to the frame, and a tilt position in which the sliding sash is tiltable relative to the frame, the unlocked position being intermediate the locked position and the tilt position, the actuator mechanism also having a biasing member for urging the control lever to an unlocked position through a first rotational range of travel of the control lever extending from the tilt position toward the unlocked position, and for urging the control lever to the unlocked position through a second rotational range of travel extending from a point intermediate the locked position and the unlocked position toward the unlocked position.
An integrated lock and tilt-latch mechanism for a sliding window, the window including a frame with a sliding sash therein, the sash tiltably positionable relative to the frame, the mechanism comprising:
- a tilt latch adapted for mounting on the sash, the tilt latch having a tilt-latch housing and a plunger;
- an actuator mechanism adapted for mounting on the sash, the actuator mechanism having a spring and a gear operably connected to a control lever and a spool defining a slot and a gear region adapted to rotationally engage the gear to enable rotation of the spool;
- and
- a flexible strap operably linking the tilt latch and the actuator mechanism, the slot of the actuator mechanism receiving the flexible strap, wherein:
- the tilt-latch actuator member has an axis of rotation offset from an axis of rotation of the control lever;
- the control lever is selectively positionable between a locked position in which the sliding sash is substantially immovable relative to the frame, an unlocked position in which the sliding sash is liftable relative to the frame, and a tilt position in which the sliding sash is tiltable relative to the frame, the unlocked position being intermediate the locked position and the tilt position;
- and
- the spring is adapted to urge the control lever to the unlocked position through a first rotational range of travel of the control lever extending from the tilt position toward the unlocked position, and to urge the control lever to the unlocked position through a second rotational range of travel extending from a point intermediate the locked position and the unlocked position toward the unlocked position.
Dependencies are inferred from the claim text.