Patent ID: 8226184

Claim:
A height adjusting apparatus of a shelf for a refrigerator, in a refrigerator having the shelf on which objects to be stored are placed and which is movable up or down to a certain height, the apparatus comprising: fixing guides formed in parallel with a movement path of the shelf and spaced along a rear edge of the shelf; rolling units at one side of the shelf and configured to allow the shelf to be smoothly moved upwardly or downwardly without being tilted or distorted, the rolling units comprising first and second pairs of rolling members, each rolling member is installed at the rear surface of the shelf such that an axis of each rolling member being perpendicular to the rear edge of the shelf; and operation levers configured to be movable along the fixing guides when the shelf is moved upwardly or downwardly, and to be restricted on the fixing guides to maintain the moved height or location of the shelf when the shelf is completely moved upwardly or downwardly, wherein each of the operation levers is hinge-coupled to one side of the shelf, wherein each of the rolling units comprises a sliding guide formed in parallel with the movement path of the shelf, wherein each of the first and second pairs of rolling members is disposed at one side of the corresponding sliding guide in a vertical direction so as to simultaneously rollably contact the sliding guide, wherein each sliding guide has a cross section in a wedge shape to protrude outwardly, and wherein the rolling members are disposed at both rear end portions of the shelf in a vertical direction, and each has a roller recess formed in an outer circumference and having a wedge shape corresponding to the cross section of the sliding guide.