Patent ID: 6361087
Filing Date: 2002-03-26
Classification: E05B,E05C,Y10S,Y10T

Abstract:
A locking fitting apparatus comprising:a leaf; a sash-frame receiving said leaf therein; at least one spring lock connected to said leaf capable of moving between a locking position and a retracted position, said spring lock elastically urged toward said locking position said spring lock having a head, a retaining means being affixed to said head of said spring lock, said head having a back face and a beveled face, said back face having a groove therein, said groove extending parallel to a direction of movement of said spring lock; a control means connected to said spring lock, said control means for actuating said spring lock; the retaining means interactive with said spring lock, said retaining means said spring lock in said retracted position when said leaf is open, said retaining means releases said spring lock such that said spring lock is urged outwardly to said locking position when said leaf is closed in said sash-frame, said retaining means comprising: a lever received within said groove, said lever pivotable about an axis perpendicular to said direction of movement, said lever having an outer edge with a cut-out formed thereon, said lever having a bent portion on a side of said lever opposite said cut-out; a retaining rim cooperative with said cut-out of said outer edge of said lever; and a blade spring secured to a rear surface of said head, said blade spring cooperative with said bent portion so as to urge said bent portion toward said rear surface of said head, said head having a groove formed in said rear surface thereof, said bent portion received within said groove in said rear surface, said groove having an interior surface acting as a stop to a movement of said bent portion caused by said blade spring.