Patent ID: 6213523
Filing Date: 2001-04-10
Classification: E05B,Y10S,Y10T

Abstract:
A lock comprising:a lock case;a forend attached to said lock case by at least one fastening member being removable in an axial direction thereof;a latch bolt movable within said lock case between a locking position, in which it projects at least partly from said case, and an unlocking position, in which it is retracted within said lock case;a holding bolt being positionable in a first, relatively retracted position allowing movement of said latch bolt from its locking position to its unlocking position, and in a second relatively inserted position preventing movement of said holding bolt from its locking position to its unlocking position; andspring means for yieldably retaining said holding bolt in its first and second positions and for positively preventing withdrawal thereof form said lock case;said fastening member is operatively connected to said spring means so that upon at least partial removal of said fastening member in said axial direction at least one portion of said spring means shifts from a first position, defining an abutment means where said holding bolt abuts abut said at least one portion to prevent withdrawal of said holding bolt, to a second position, in which said holding bolt is free for withdrawal from said lock case.