The invention relates to a window lock having a trigger and a bolt, the trigger being rotatable about an axis of rotation and the bolt being movable between a locked position, a first unlocked position and a second unlocked position. The bolt also includes a clip that engages first and second stops.
The invention relates to a window lock having a trigger and a bolt, the trigger being rotatable about an axis of rotation and the bolt being movable between a locked position, a first unlocked position and a second unlocked position. The bolt also includes a clip that engages first and second stops. The trigger rotates about the axis for engaging and disengaging the clip with the first and second stops. The first and second stops and the clip are all located on the same side of the axis of the trigger.
대표청구항▼
1. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a s
1. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position, wherein the clip is positioned on a beam and the beam is cantilevered from the bolt, and wherein the beam flexes about a pivot point at a juncture of the bolt and the beam;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger caused to be rotated about the axis in a first direction as the window moves out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger caused to be rotated about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 2. The window lock according to claim 1, wherein the trigger further includes at least one axle for rotation about the axis. 3. The window lock according to claim 1, wherein the clip surface is forward facing and the first and second stop surfaces are rearward facing. 4. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being moveable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position, and wherein the clip further includes a rearward facing ramp surface;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface;the first and second stop surfaces and the clip surfaces all being positioned on the same side of the axis of the trigger, wherein the clip surface is forward facing and the first and second stop surfaces are rearward facing;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger caused to be rotated about the axis in a first direction as the window moves out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger caused to be rotated about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 5. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger, wherein the clip surface is forward facing and the first and second stop surfaces are rearward facing;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively, wherein the clip includes a rearward facing ramp surface, and wherein the rearward facing ramp surface on the clip acts to raise the clip relative to the first stop as the bolt is moved from the locked position to the first unlocked position; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger rotating about the axis in a first direction as the window out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger rotating about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 6. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger, wherein the clip surface is forward facing and the first and second stop surfaces are rearward facing;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively, wherein the clip includes a rearward facing ramp surface, and, wherein the first and second stops further include respective forward facing ramp surfaces; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger rotating about the axis in a first direction as the window out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger rotating about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 7. The window lock according to claim 4, wherein the clip is wider than the first stop. 8. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being moveable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface, wherein the second stop is mounted fixed relative to the chassis;the first and second stop surfaces and the clip surfaces all being positioned on the same side of the axis of the trigger;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger caused to be rotated about the axis in a first direction as the window moves out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger caused to be rotated about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 9. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface, wherein the second stop is mounted fixed relative to the chassis, and wherein the second stop is mounted approximately adjacent to, but offset in a forward direction relative to the first stop and the clip surface is wider than the first stop surface, the clip surface engaging the first stop surface along a first portion of the clip surface width when the bolt is in the first unlocked position and engaging the second stop surface along a second portion of the clip surface width when the bolt is in the second unlocked position;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger rotating about the axis in a first direction as the window out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger rotating about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 10. A window lock for locking a window in a locked window position, the window lock comprising: a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position, wherein a first distance is defined by a length of movement of the bolt from the locked position to the first unlocked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a corresponding first stop surface;a second stop having a second stop surface;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger,the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively; andthe trigger positioning the first stop to hold the bolt in the first unlocked position, the trigger rotating about the axis in a first direction as the window out of the locked window position to allow the bolt to move from the first unlocked position to the second unlocked position and the trigger rotating about the axis in an opposite direction as the window moves into the locked window position to allow the bolt to move from the second unlocked position to the locked position. 11. The window lock according to claim 10, wherein a second distance is defined by a length of movement of the bolt from the second unlocked position to the locked position, and wherein the second distance is less than the first distance. 12. The window lock according to claim 1 wherein the trigger is biased to rotate about the axis in the first direction with a trigger spring and the bolt is biased towards the locked position with a bolt spring. 13. A window lock for locking a window in a locked window position, the window lock, comprising: a chassis;a bolt having a cantilevered beam extending therefrom and a clip on the beam, the clip having a forward facing clip surface and a rearward facing ramp surface, the bolt being slidably mounted in the chassis and movable from a forwardly extended locked position to a first rearward unlocked position and from the first unlocked position to a second rearward unlocked position, the bolt being biased forward with a bolt spring towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis as the window moves into and out of the locked window position, the trigger including a first stop with a rearwardly facing first stop surface and the trigger being biased to rotate in a first direction about the axis with a trigger spring;a second stop mounted in a fixed position relative to the chassis, the second stop having a second stop surface;the first and second stop surfaces and the clip surface all being positioned on the same side of the axis of the trigger;the clip cooperating with the first and second stops to hold the bolt in the first and second unlocked positions, respectively;the rearward facing ramp surface on the clip flexing the beam about a pivot point at a juncture of the bolt and the beam to raise the clip relative to the first stop when the bolt is moved rearward from the locked position to the first unlocked position; andthe trigger positioning the first stop to hold the bolt in the fiht unlocked position, the trigger spring rotating the trigger about the axis in the first direction caused by window movement as the window moves into the locked window position to disengage the clip surface from the first stop surface and allow the bolt to move from the first unlocked position to the second unlocked position and the trigger caused to be rotated about the axis in an opposite direction as the window moves out of the locked window position to disengage the clip surface from the second stop surface to allow the bolt to move from the second unlocked position to the locked position. 14. A method for locking and unlocking window sashes comprising the steps of: mounting two window sashes relative to each other in generally parallel planes the two sashes moving between an open and a closed position;providing a window lock and installing the window lock on a first sash, the window lock including:a chassis;a bolt having at least one clip with a clip surface, the bolt being movable relative to the chassis from a locked position to a first unlocked position and from the first unlocked position to a second unlocked position, the bolt being biased towards the locked position and releasable from the second unlocked position to the locked position;a trigger mounted to said chassis and rotatable about an axis, the trigger including a first stop with a corresponding first stop surface; anda second stop having a second stop surface;wherein the first and second stop surfaces and the clip surface are all positioned on the same side of the axis of the trigger, wherein the clip surface is forward facing and the first and second stop surfaces are rearward facing, and the clip further includes a rearward facing ramp surface, and wherein the rearward facing ramp surface on the clip acts to raise the clip relative to the first stop as the bolt is moved from the locked position to the first unlocked position;installing a strike on the second sash, the strike including a strike opening for receiving the bolt and preventing relative movement of the window sashes;moving the bolt a first distance away from the second sash to the first unlocked position when the sashes are in the closed position to engage the clip surface with the first stop surface and hold the bolt in the first unlocked position;moving the first sash with respect to the second sash from the closed position towards the open position;rotating the trigger in a first direction as the first sash moves away from the closed position towards the open position and thereby releasing the bolt from the fast unlocked position to move to the second unlocked position and engage the clip surface with the second stop surface to hold the bolt in the second unlocked position;moving the first sash with respect to the second sash from the open position to the closed position; androtating the trigger in an opposite direction from the first direction as the fast sash reaches the fully closed position and thereby releasing the bolt from the second unlocked position to the locked position to engage the strike. 15. The method for locking and unlocking window sashes according to claim 14, wherein the clip is positioned on a beam and the beam is cantilevered from the bolt. 16. The method for locking and unlocking window sashes according to claim 15, wherein the beam flexes about a pivot point at a juncture of the bolt and the beam. 17. The method for locking and unlocking window sashes according to claim 14, wherein the trigger further includes at least one axle for rotation about the axis. 18. The method for locking ad unlocking window sashes according to claim 14, wherein the first and second stops further include respective forward facing ramp surfaces. 19. The method for locking and unlocking window sashes according to claim 14, wherein the clip is wider than the first stop. 20. The method for locking and unlocking window sashes according to claim 19 wherein the second stop is mounted fixed relative to the chassis. 21. The method for locking and unlocking window sashes according to claim 20 wherein the second stop is mounted approximately adjacent to, but offset in a forward direction relative to the first stop and the clip surface is wider than the first stop surface, the clip surface engaging the first stop surface along a first portion of the clip surface width when the bolt is in the first unlocked position and engaging the second stop surface along a second portion of the clip surface width when the bolt is in the second unlocked position.
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이 특허에 인용된 특허 (18)
Schultz, Steven E., Adjustable tilt-latch for a sash window.
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