A water dispenser includes a drawer having a rear side provided in the lower portion of a casing and is guided by guiding portions fixed to the casing. Before the casing which stands on a floor surface topples down and before the drawer comes into contact with a floor surface, casters support the front side of the drawer. Normally, axles of the casters are supported on respective front side support portions such that the casters roll on a floor surface. The casters collide against a step, so that the axles are moved to rear side support portions which are located higher than the front side support portions.