elastically support the movable bar 104 moving backward in the leg casing 103 during the door closing action therefore the second springs 32 dampen the door closing action thus reducing the door closing speed and retarding the energy generated from the door closure the door 102 is thus smoothly and gently closed without applying impact energy to the refrigerator in an embodiment of the present invention the movable bar has four grooves to change the open angle of the door between four angles however it should be understood that the number of grooves formed on the movable bar may be changed to five or more grooves or three or less grooves in order to change the number of open angles of the door which may be selected by a user as desired in addition the grooves for seating the roller of the control unit may be formed on a separate member mounted to a side surface of the movable bar as illustrated in fig4 the control chamber which receives the first spring of the control unit may be integrally formed on the sidewall of the leg casing by outwardly depressing the sidewall as shown in the drawings alternatively the control chamber may be defined in a separate member which is provided at a predetermined position around the sidewall.