PURPOSE: To obtain a refrigerator of low cost, of lightweight, which can be opened always at constant speed by providing a heating member near a damping member filled with oil.

CONSTITUTION: When a refrigerator is being energized, a damping member 16 on the side of a refrigerated chamber is cooled, while a condensing pipe 21 through which gas of high temperature and high pressure flows serves as a heating source, so that oil 16c of the damping member 16 is heated through a heat conductive sealer 25 and a cover plate B24 to ambient temperature. During summer, since outdoor temperature is high and period or energization is long, the temperature of the oil 16c rises and vice versa during winter. Consequently, the member 16 filled with oil 16c is heated by the pipe 21, as a heating member, during energization of the refrigerator even if the interior thereof is cooled, so that the viscosity of the oil 16c can be kept at approximately constant and opening speed of a door can be made constant.