Refrigerator

摘要

A refrigerator includes a main body having a storage chamber; a first storage unit formed in the storage chamber, left and right side walls of the first storage unit having first roller supporting surfaces; and a second storage unit having first roller members mounted to a front region of the second storage unit on left and right sides thereof, the first roller members being seated on the first roller supporting surfaces of the first storage unit, a protrusion extending downwardly from a bottom surface of the second storage unit, and second roller members provided on both sides of the second storage unit to move along guide surfaces provided on an interior of the storage chamber. A lateral surface of the protrusion is configured to extend into and contact an interior surface of the first storage unit to prevent the first roller members from laterally leaving the first roller supporting surfaces.

主权项

1. A refrigerator comprising:
a main body including a storage chamber; a rail housing mounted on a side wall of the storage chamber; a rack gear provided at a lower part of the rail housing, the rack gear including a plurality of teeth arranged in a front to rear direction of the storage chamber; a storage box configured to be withdrawn from or inserted into the storage chamber; a rail device connected to the storage box and including a pinion gear that moves together with movement of the storage box, wherein movement of the pinion gear is guided by the plurality of teeth of the rack gear; and an idle gear including a plurality of teeth arranged adjacent to one another in the front to rear direction, each of the plurality of teeth of the idle gear having a width orthogonal to the front to rear direction that is smaller than a width orthogonal to the front to rear direction of at least one of the plurality of teeth of the rack gear.