| 摘要 |
A combination sash lock and tilt latch secures 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 sash window meeting rail without screws, using legs received within corresponding openings in the rail. The lock assembly is releasably secured thereto by a spring 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 with a plurality of openings, each configured to receive the post of the lock assembly, within the meeting rail, with the lock assembly installed thereon in any one of a plurality of positions corresponding to said openings in said latch member. |
| 主权项 |
1. A combination locking and tilt latching fastener, for use on a frame of a sash window configured to slide and tilt with respect to a master window frame, said fastener comprising:
a lock assembly configured to be mounted to the top surface of a hollow meeting rail of the sash window frame, said lock assembly comprising: a housing; an arm pivotally mounted to said housing and configured to extend into the hollow meeting rail; and a cam pivotally mounted to said housing; a latch assembly configured to be received through an opening in a side of the sash window frame, said latch assembly comprising a biasing means and a latch member, said latch member comprising a first end formed into a tongue portion, said biasing means configured to bias said latch member for said tongue portion to normally protrude out from the sash window frame opening; said latch member comprising a beam extending away from said tongue portion, said beam comprising at least one through-opening from a top side of said beam through a bottom side of said beam, said beam comprising at least one post, of a selective length, configured to protrude down from said bottom side; wherein said pivotal arm of said lock assembly is configured to be selectively received through one of said at least one opening in said beam, said one opening being positioned below said lock assembly mounting position on the sash window meeting rail; and wherein a first position for said pivotal cam is configured to engage a keeper on the master window frame to lock the sliding sash window, a second cam position is configured to permit sliding of the sash window, and a third cam position is configured to actuate said pivotal arm to drive said beam of said latch assembly to oppose said biasing, to retract said tongue and permit tilting of the sash window. |
