Combination sash lock and tilt latch with improved interconnection for blind mating of the latch to the lock
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E05C-003/04
E05C-001/08
E05C-001/16
E05B-063/00
E05C-001/12
E05B-009/08
E05C-007/00
출원번호
US-0198986
(2014-03-06)
등록번호
US-10119310
(2018-11-06)
발명자
/ 주소
Liang, Luke
Liang, Tong
Chen, David
출원인 / 주소
Vision Industries Group, Inc.
대리인 / 주소
O'Rourke, Thomas A.
인용정보
피인용 횟수 :
0인용 특허 :
150
초록▼
A combination sash lock and tilt latch in one integral fastener may suitably secure a sash window that is slidable and tiltable with respect to a master window frame. The fastener includes a lock assembly and latch assembly. The lock assembly is releasably mounted upon the meeting rail of the sash w
A combination sash lock and tilt latch in one integral fastener may suitably secure a sash window that is slidable and tiltable with respect to a master window frame. The fastener includes a lock assembly and latch assembly. The lock assembly is releasably mounted upon the meeting rail of the sash window without screws, using legs received within corresponding openings in the rail. The lock assembly is secured thereto by a biasing member causing engagement between the legs and rail openings. The lock assembly includes a pivotable cam to releasably engage a keeper on the master frame, and a pivotable arm extending into the meeting rail. The latch assembly includes biasing means and a latch member, which includes a fixed funnel member and a flexible funnel member on a distal end of a flexible beam, to blindly engage the lock assembly arm within the meeting rail, when installed therein.
대표청구항▼
1. A combination locking and tilt latching fastener, for use on a sash window that is configured to be slidable and tiltable with respect to a master window frame, with a portion of said fastener configured to extend transversely into a hollow meeting rail of the sash window, said fastener configure
1. A combination locking and tilt latching fastener, for use on a sash window that is configured to be slidable and tiltable with respect to a master window frame, with a portion of said fastener configured to extend transversely into a hollow meeting rail of the sash window, said fastener configured to occupy a first position for the sash window to be locked and latched, a second position for the sash window to be unlocked and still latched to only permit sliding, and a third position for the sash window to be unlocked and unlatched to further permit tilting of the sash window, said fastener comprising: a lock assembly configured to be mounted to an outer surface of a portion of a top wall of the hollow meeting rail of the sash window, said lock assembly comprising: a housing comprising an opening into a cavity;a cam pivotally mounted within said cavity of said housing to travel between at least three cam positions respectively corresponding to said first fastener position, said second fastener position, and said third fastener position, said cam comprising: a drive portion and a hook portion, said cam configured to be rotated for said hook portion to move from being retracted within said housing cavity at each of said second fastener position and said third fastener position, to being extended out of said cavity through said opening, to releasably engage a keeper on the master window frame, at said first fastener position; andan arm pivotally mounted within said cavity and comprising: a first arm portion and a second arm portion, said first arm portion comprising a follower surface selectively driven by said drive portion of said cam; an entirety of said second arm portion extend orthogonally to the first arm portion in a transverse direction into the hollow meeting rail from the top wall toward an opposingly positioned bottom wall of the hollow meeting rail the bottom wall separated from the top wall by a pair of side walls, with a distal end of said second arm portion separated from an inner surface of a portion of the bottom wall by a distance in the transverse direction;a latch assembly, said latch assembly comprising a latch housing, a latch member having a portion thereof slidably disposed within a portion of said latch housing, and a biasing means, said latch housing configured to be received through a side of a stile of the sash window, said latch member comprising a tongue, and a beam configured to extend away from said tongue, said beam comprising a fixed funnel member and a flexible funnel member at an end distal from said tongue, said fixed funnel member and said flexible funnel member configured to form a V-shape oriented substantially transversely to said second arm portion to blindly engage said second arm portion of said arm within the hollow meeting rail, and for said flexible funnel member to deflect to receive a portion of said second arm portion in an opening formed by said fixed funnel member and said flexible funnel member, at least one of said fixed funnel member and said flexible funnel member comprising a thickness in the transverse direction being greater than said distance, to ensure said blind engagement; said biasing means configured to normally bias a portion of said tongue to protrude out from said latch housing and beyond the hollow meeting rail; andwherein said drive portion of said cam is configured to engage and drive said follower surface of said first arm portion to oppose said bias of said biasing means to retract said latch member, when said cam is moved from said cam position corresponding to said second fastener position, to said cam position corresponding to said third fastener position. 2. The fastener according to claim 1, further comprising detent means operably associated with a hub of said cam for releasably limiting pivotal travel of said cam at each of said first fastener position and said second fastener position. 3. The fastener according to claim 2, wherein said drive portion of said cam comprises a semi-cylindrical protrusion. 4. The fastener according to claim 1, said latch housing comprising a plurality of teeth configured to sequentially engage the hollow meeting rail to secure said latch housing to the hollow meeting rail. 5. The fastener according to claim 1, said housing of said lock assembly comprising one or more legs, said one or more legs configured to be received within one or more corresponding openings in the hollow meeting rail, for releasable mounting of said lock assembly thereto, without screws. 6. The fastener according to claim 5, said lock assembly comprising a spring configured to releasably secure said one or more legs within said one or more corresponding openings in the hollow meeting rail. 7. The fastener according to claim 1, wherein a length of said latch member is modifiable to support one of two lock assembly positions upon the hollow meeting rail, said latch member comprising a second beam extending from said fixed funnel member, said second beam comprising a second fixed funnel member and a second flexible funnel member at an end of said second beam distal from said fixed funnel member, said second beam comprising a notch proximate to said fixed funnel member, to permit breaking off of said second beam from said fixed funnel member for modification of said length. 8. A combination locking and tilt latching fastener, for use on a sash window that is configured to be slidable and tiltable with respect to a master window frame, with a portion of said fastener configured to extend transversely into a hollow meeting rail of the sash window, said fastener configured to occupy a first position for the sash window to be locked and latched, a second position for the sash window to be unlocked and still latched to only permit sliding, and a third position for the sash window to be unlocked and unlatched to further permit tilting of the sash window, said fastener comprising: a lock assembly configured to be releasably mounted onto a portion of a top wall of the hollow meeting rail of the sash window, said lock assembly comprising: a housing comprising an opening into a cavity;a cam pivotally mounted within said cavity of said housing to travel between at least three cam positions respectively corresponding to said first fastener position, said second fastener position, and said third fastener position, said cam comprising: a drive portion and a hook portion, said cam configured to be rotated for said hook portion to move from being retracted within said housing cavity at each of said second fastener position and said third fastener position, to being extended out of said cavity through said opening, to releasably engage a keeper on the master window frame, at said first fastener position; andan arm pivotally mounted within said cavity and comprising: a first arm portion and a second arm portion, said first arm portion comprising a follower surface selectively driven by said drive portion of said cam; an entirety of said second arm portion extends orthogonally to the first arm portion in a transverse direction into the hollow meeting rail from the top wall toward an opposingly positioned bottom wall of the hollow meeting rail, the bottom wall separated from the top wall by a pair of side walls, with a distal end of said second arm portion separated from an inner surface of the bottom wall by a distance in the transverse direction;a latch assembly, said latch assembly comprising a latch housing, a latch member having a portion thereof slidably disposed within a portion of said latch housing, and a compression spring, said latch housing configured to be received through a side of a stile of the sash window, said latch member comprising a tongue, and a beam configured to extend away from said tongue, said beam comprising a fixed funnel member and a flexible funnel member at an end distal from said tongue, said fixed funnel member and said flexible funnel member configured to form a V-shape oriented substantially transversely to said second arm portion to blindly engage said second arm portion within the hollow meeting rail, and for said flexible funnel member to deflect to receive a portion of said second arm portion in an opening formed by said fixed funnel member and said flexible funnel member, at least one of said fixed funnel member and said flexible funnel member comprising a thickness in the transverse direction being greater than said distance, to ensure said blind engagement; said compression spring configured to normally bias a portion of said tongue to protrude out from said latch housing and beyond the hollow meeting rail; andwherein said drive portion of said cam is configured to engage and drive said follower surface of said first arm portion to oppose said bias of said compression spring to retract said latch member, when said cam is moved from said cam position corresponding to said second fastener position, to said cam position corresponding to said third fastener position. 9. The fastener according to claim 8, said lock assembly further comprising a leaf spring, and said cam comprising a cylindrical hub with a pair of flats formed thereon; and wherein said leaf spring is configured to respectively engage each of said pair of flats on said cylindrical hub to releasably limit pivotal travel of said cam at each of said first fastener position and said second fastener position. 10. The fastener according to claim 9, wherein said drive portion of said can comprises a semi-cylindrical protrusion. 11. The fastener according to claim 8, said latch housing comprising a plurality of teeth configured to sequentially engage the hollow meeting rail to secure said latch housing to the hollow meeting rail. 12. The fastener according to claim 8, said housing of said lock assembly comprising one or more legs, said one or more legs configured to be received within one or more corresponding openings in the hollow meeting rail, for releasable mounting of said lock assembly thereto, without screws. 13. The fastener according to claim 12, said lock assembly comprising a spring configured to releasably secure said one or more legs within said one or more corresponding openings in the hollow meeting rail. 14. The fastener according to claim 8, wherein a length of said latch member is configured to be modified to support one of two lock assembly positions upon the hollow meeting rail, said latch member comprising a second beam extending from said fixed funnel member, said second beam comprising a second fixed funnel member and a second flexible funnel member at an end of said second beam distal from said fixed funnel member, said second beam comprising a notch proximate to said fixed funnel member, to permit breaking off of said second beam from said fixed funnel member for modification of said length. 15. A combination locking and tilt latching fastener, for use on a sash window configured to be slidable and tiltable with respect to a master window frame, with a portion of said fastener configured to extend transversely into a hollow meeting rail of the sash window, said fastener comprising: a lock assembly configured to be mounted onto a portion of a top wall of the hollow meeting rail of the sash window, said lock assembly comprising: a housing;a cam pivotally mounted within a cavity of said housing to travel between a locked position, a latched position, and an unlatched position; andan arm pivotally mounted within said cavity and comprising: a first arm portion and a second arm portion, said first arm portion comprising a follower surface, an entirety of said second arm portion extends orthogonally to the first arm portion in a transverse direction into the hollow meeting rail from the top wall toward an opposingly positioned bottom wall of the hollow meeting rail, the bottom wall separated from the top wall by a pair of side walls, with a distal end of said second arm portion separated from an inner surface of the bottom wall by a distance in the transverse direction;a latch assembly comprising: a latch housing configured to be received through a side of the sash window, a latch member slidably disposed within said latch housing, and means for biasing said latch member to protrude out from said latch housing, said latch member comprising a tongue, and a beam configured to extend away from said tongue, a distal end of said beam comprising a fixed funnel member and a flexible funnel member configured to form a V-shape oriented substantially transversely to said second arm portion, to blindly engage said second arm portion within the hollow meeting rail, to cause said flexible funnel member to deflect to permit a portion of said second arm portion to be received in a recess in said fixed funnel member through an opening temporarily formed by said deflection; at least one of said fixed funnel member and said flexible funnel member comprising a thickness in the transverse direction being greater than said distance, to ensure said blind engagement; andwherein said cam is configured to selectively contact said follower surface to drive said arm and oppose said biasing, for said tongue to correspondingly occupy a latched tongue position with said cam in said latched position, and for said tongue to correspondingly occupy an unlatched tongue position with said cam in said unlatched position. 16. The combination locking and tilt latching fastener according to claim 15, further comprising a hub on said cam, and detent means operably associated with said hub for releasably limiting pivotal travel of said cam at each of said locked position and said latched position. 17. The combination locking and tilt latching fastener according to claim 15, wherein said housing of said lock assembly comprises one or more legs configured to be slidably engaged within one or more corresponding openings in the hollow meeting rail, for releasable mounting of said lock assembly thereto without screws. 18. The combination locking and tilt latching fastener according to claim 17, said lock assembly comprising a leaf spring configured to releasably engage a correspondingly positioned opening of said one or more corresponding openings in the hollow meeting rail, to releasably secure said engaged one or more legs within the corresponding one or more openings. 19. The combination locking and tilt latching fastener according to claim 15, wherein a length of said latch member is modifiable to support one of two lock assembly positions upon the portion of the top wall of the hollow meeting rail, said latch member comprising a second beam extending from said fixed funnel member, said second beam comprising a second fixed funnel member and a second flexible funnel member, at an end of said second beam being distal from said fixed funnel member, said second beam comprising a notch proximate to said fixed funnel member, to permit breaking off of said second beam from said fixed funnel member for modification of said length.
Draheim Harvey J. (Weyauwega WI) Charlson Glenn T. (New London WI) Beiswenger John L. (Salem WI) Brunner Merlin A. (New London WI), Crib dropside including latch mechanism.
Pelachyk Richard (Utica MI) Satterlee Lowell W. (Clarkston MI) Zuccaro Dante C. (Allenton MI) Farris Timothy M. (Sterling Heights MI), Door handle housing attachment for vehicle door.
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