A self-contained combination latch and cam lock adapter module affixes to the rear of any lock (keyed or non-keyed) that has a requisite mating feature. The module is alignable in any of four positions (up, down, left, and right) on the back of the lock for latching in any installed position. The module allows a user to slam closed an associated door or drawer without having to rotate the lock into a locked position. The module retrofits in the field by removing and replacing an existing fixed cam. In one embodiment, a mating part is rotationally spring-loaded so that when the key or knob is turned and then released, the module automatically returns to its locked position, ready to be shut.

A locking member for locking a rod in a path for the rod to pass through, wherein the path is formed to have a substantially heart shape, wherein the locking member includes a speed regulation path portion for regulating entrance speed by causing the rod that enters the path to fluctuate, and a locking portion for locking the rod whose entering speed is regulated, wherein the speed regulation path portion extends in a vertical direction that is perpendicular to a width direction of the locking member, and the speed regulation path portion includes rod receiving portions that are disposed at a start edge and an end edge, wherein the rod receiving portions are for regulating the entering speed by receiving the fluctuation in a forward and backward direction of the rod that enters the speed regulation path portion.

A door lock assembly for use with a door comprising a movable locking assembly disposed within a recess formed in an edge of a door panel having one or more movable wedge shaped locking elements disposable between a locked position and an unlocked position and having first teeth associated therewith, and a frame member having a channel and second teeth associated therewith, wherein when assembled the locking element is disposed substantially within the channel formed in the frame element when disposed in the locked position, and wherein one or more the first teeth of the locking element are adapted to selectively engage with one or more of the second teeth when a force is applied to the door.