Patent attributes
A cabinet includes drawers each having a rear latch; and a key driven internal locking device including a rod including a front key hole and a rear bent member; a longitudinal member secured to an inner surface of a rear end of the cabinet and including a longitudinal groove; a sliding member slidably disposed in the longitudinal groove and including rectangular openings on a front surface, a protrusion on a top of the sliding member, and an upper driven member secured to the front surface of the sliding member and having a through hole with the bent member passing through; fastening plates each secured to two sides of the longitudinal member wherein the uppermost fastening plate has a pivot hole with the rear end of the rod passing through into the longitudinal member; and a concave member in an upper portion of the longitudinal member.
