US Patent 7418967 Dishwasher

A dishwasher including an improved rack adjustment system is provided. The dishwasher includes a chamber for washing dishes, guide rails at opposite inside walls of the chamber, and a rack that moves along the guide rails into and Out of the chamber for holding dishes. A supporter may be provided at opposite sides of the rack for guiding an up/down movement of the rack along the guide rail, with a locker provided on an outside surface of the supporter for holding the rack in position. A handle may be provided on the outside surface of the supporter to swing in up/down directions to a force to the locker and adjust the rack downward, thereby permitting easy adjustment of rack height.