MULTIPOINT LOCKING MECHANISM FOR WINDOW SASH

摘要

A method for locking a window sash in a closed position to a window frame, comprises providing a slider portion translating longitudinally on a window frame and supporting a cam wedge comprising at least one flat ramped portion obliquely positioned with respect to the translation direction of the slider portion. The flat ramped portion is aligned with a corresponding keeper portion on the window sash by moving the window sash to the closed position. The flat ramped portion is brought toward the corresponding keeper portion until contact. The corresponding keeper portion is moved along the flat ramped portion. A displacement of the window sash is prevented by having the corresponding keeper portion lock with the slider portion beyond the flat ramped portion.