Patent ID: 8839648

Claim:
A drawer of a washing machine comprising: a dispenser having an opening; a detergent box movable within the dispenser through the opening, and having flanges that extend at sides of the detergent box and a rack gear that extends from one of the sides of the detergent box along a movement direction of the detergent box; and guide units provided on inner surfaces of sides of the dispenser, each guide unit including at least one roller that movably supports a respective one of the flanges, a support frame, and a roller connector that rotatably connects the at least one roller to the support frame, wherein the drawer further comprising: a lock to lock or unlock the detergent box in the dispenser; an automatic withdrawer configured to withdraw the detergent box when the lock unlocks the detergent box, wherein the automatic withdrawer includes a first pinion gear meshed with the rack gear; a damper configured to limit a withdrawal speed of the detergent box, wherein the damper includes a second pinion gear meshed with the rack gear, wherein the second pinion gear is placed at a predetermined distance interval from and aligned with the first pinion gear such that the first pinion gear and the second pinion gear, that are meshed with the rack gear, preventing the detergent box from being shaken when the detergent box is withdrawn or inserted.