Patent ID: 6334635
Filing Date: 2002-01-01
Classification: E05B,Y10S,Y10T

Abstract:
A latch bolt mechanism of a tubular lock, comprising:a latch bolt housing having a latch bolt mounted therein, the latch bolt being movable between a first position extended beyond a face plate and a second position retracted into the face plate, the latch bolt including an inner end; two plates connected together and mounted to the inner end of the latch bolt, each of the plates including two first positioning holes, a second positioning hole, and an opening, the first positioning holes, the second positioning holes, and the openings of the plates being aligned with each other, respectively; an actuating plate including a first end operably connected to the latch bolt and a second end, the second end of the actuating plate including a first tooth and a second tooth, each of the first tooth and the second tooth of the actuating plate including a block formed thereon; an extension casing mounted around the plates and movable between a first position adjacent to the latch bolt housing and a second position distal to the latch bolt housing, the extension casing including a first hole, a second hole, a top side, and a bottom side, each of the top side and the bottom side of the extension casing including a slot; a follower plate including an upper block and a lower block received in the slots of the extension casing, respectively, the follower plate including a first tooth and a second tooth, the follower plate having a side that presses against the actuating plate, the follower plate further including a notch.