Patent ID: 8579394

Claim:
A refrigerator comprising: a storage room defining a storage space; a door configured to open and close to provide or prevent access to the storage room; and a hinge assembly configured to connect the door to the storage room at a height relative to the storage room, wherein the hinge assembly is configured to enable adjustment to the height of the door, wherein the hinge assembly comprises: a hinge bracket supporting a lower side of the door, the hinge bracket having a shaft coupling hole of a polygonal shape; a hinge shaft fixed to prevent rotation of the hinge shaft about the hinge bracket and to provide a rotation center about which the door rotates, the hinge shaft having a first screw thread and a fixing part which has a section corresponding to the shaft coupling hole, and a vertically movable adjustment member disposed on the lower side of the door, the adjustment member having a second screw thread coupled to the first screw thread; a damping member coupled to the door and configured to reduce a rotation speed of the door; and a damping member shaft extending to a lower side of the damping member, the damping member being coupled to the hinge shaft, wherein the hinge shaft comprises a coupling part coupled to the damping member shaft and recessed on an end portion of the hinge shaft to receive the damping member shaft, the coupling part has a polygonal shape, and the damping member shaft has a sectional shape corresponding to that of the coupling part such that the damping member shaft is received within the polygonal shaped recess of the coupling part.