Patent ID: 8851590

Claim:
A refrigerator comprising: a main body provided with storage chambers formed therein; doors opening and closing the storage chambers, one of the doors being provided with an opening, the opening having at least one stepped plane; a rack installed in the storage chamber at a height corresponding to that of the lower end of the opening; a sub door to open and close the opening; and a connection member to prevent a height difference between a rear surface of the sub door and the opening when the sub door is opened, wherein the connection member is configured to slide relative to the sub door to cover the at least one stepped plane, whereby the connection member closes the at least one stepped plane when the sub door is closed, and opens the at least one stepped plane when the sub door is opened so that the rear surface of the sub door and the connection member form substantially a level plane with the rack, and thus an article placed on the rack is moved in a horizontal direction through the opening of the door and then placed on the rear surface of the sub door.