Patent ID: 6401297
Filing Date: 2002-06-11
Classification: E05B,E05C,Y10T

Abstract:
A improved door lock latch comprising:a base with a nut cylinder provided nearby a rear end of a base body thereof; an upper cover with a correspondent tap hole provided nearby a rear end of a cover body thereof; and a latch fixing plate with a flat O-shaped hole for a latch bar at a center of a plate body thereof, and two holes on two sides of the plate body so as to rivet and install a decorative panel on a front of the plate body; a latch opening/closing mechanism and a latch bar installed between the base and the upper cover, a screw disposed in the tap hole on the upper cover and the nut cylinder of the base so as to lock and join each other; outer sides of front half sections of the base body as well as the upper cover body being provided respectively with the following members: a recess, a guide track in each one recess, a threaded hole on each one guide track, two opposite fixing pieces extended from a back of a latch fixing plate body, a guide way on an inner side of each one fixing piece, a slot in each one guide way, and two conical indentations in a position of each one slot on outer sides of the two fixing pieces; whereby the mutually locked and jointed base and upper cover are installed between the two fixing pieces of the latch fixing plate and locked with one each screw up and down so that an assembly of an improved long or short latch of door lock is finished.