Abstract: A shelf placing frame formed in a hollow shape and a timing belt arranged along its periphery utilizing the hollow part are prepared. A lever movable along the frame is fixedly connected to the timing belt so as to rotationally move the timing belt. A screw shape shaft fixedly provided with a gear disposed rotational moving line of the timing belt is provided in the frame and conjointly moved with the timing belt. A moving board having a screw threaded hole meshing with the screw shape shaft is fixed on an inner wall of a refrigerator so that the shelf placing frame is moved up and down in accordance with movement of the lever.

Abstract: A middle volume of refrigerator includes a refrigerating compartment provided at an upper position therein; a freezer compartment provided at a lower position therein; and a new temperature zone of freezer compartment, the new temperature zone of freezer compartment working as a compartment having a new temperature zone of not higher than a maximum ice forming temperature zone and higher than a freezing temperature zone, wherein the new temperature zone of freezer occupies substantially an entire width of the refrigerator. The new temperature zone of freezer compartment may have a temperature therein set to a temperature that foods preserved in the new temperature zone of freezer compartment can be cut without being thawed.

Abstract: A shelf placing frame formed in a hollow shape and a timing belt arranged along its periphery utilizing the hollow part are prepared. A lever movable along the frame is fixedly connected to the timing belt so as to rotationally move the timing belt. A screw shape shaft fixedly provided with a gear disposed rotational moving line of the timing belt is provided in the frame and conjointly moved with the timing belt. A moving board having a screw threaded hole meshing with the screw shape shaft is fixed on an inner wall of a refrigerator so that the shelf placing frame is moved up and down in accordance with movement of the lever.