초록 ▼

A single point lock or cam lock for a casement window is provided. The lock includes an escutcheon providing a low profile and a smooth uninterrupted surface which faces the inside of the room. The handle includes two opposing legs that enter the escutcheon for attachment to the hook through opposin

A single point lock or cam lock for a casement window is provided. The lock includes an escutcheon providing a low profile and a smooth uninterrupted surface which faces the inside of the room. The handle includes two opposing legs that enter the escutcheon for attachment to the hook through opposing side walls of the escutcheon. A shaft provides the connection between the hook and the handle which rotates on two brace structures provided by the frame. The frame is sandwiched between the escutcheon and the inside surface of the window frame. The design of the escutcheon, the shaft and the braces of the frame provide for an effective seal against the inside surface of the window frame.

대표청구항 ▼

[ What is claimed is:] [1.] A sash lock for locking a window sash against a window frame, the window frame including a lock member disposed therein for engaging the sash lock, the sash lock comprising:a base member comprising an elongated frame having an upper side and a lower side, the frame defini

[ What is claimed is:] [1.] A sash lock for locking a window sash against a window frame, the window frame including a lock member disposed therein for engaging the sash lock, the sash lock comprising:a base member comprising an elongated frame having an upper side and a lower side, the frame defining a central slot that extends through the frame, the upper side of the frame comprising a pair of braces disposed on opposing sides of the slot,the braces supporting a shaft that connects a hook to a handle, the shaft extending across the slot and being supported by the pair of braces with the hook extending from the braces and through the slot,the hook comprising a distal end disposed below the lower side of the frame, the distal end for engaging the lock member of the window frame and a proximate end connected to the shaft,the handle comprising a pair of opposing legs having distal ends that are connected by the shaft and proximate ends that are connected by a grip, the base member being disposed between the opposing legs of the handle,whereby rotation of the handle between an open position and a closed position, that is about 180 degrees relative to the open position results in rotation of the hook between the open and closed positions,the base member being disposed between and coplanar with both the grip and the shaft in both the open and closed positions and wherein the hook, handle and shaft are connected to preclude relative movement with respect to each other in operation of the assembled sash lock.