| 摘要 |
PROBLEM TO BE SOLVED: To provide a partitioning frame improved in its heat insulating performance while securing its strength. SOLUTION: A front frame 31 is made out of a magnetic metallic plate and has the U-shaped cross-section opened on its rear side, and a depth dimension of side plates 33 is short. A cover 40 is made out of a synthetic resin, and has the U-shaped cross-section opened on its front side, and a lateral wall 44 is placed between left and right side plates 42 to divide front and rear two areas inside. Four sheets of inclined walls 51 are placed between a rear plate 41 of the cover and the lateral wall, and five air rooms 53 are formed symmetrically left and right at an area of a depth side with respect to four inclined walls. The front frame 31 is fitted to the front area of the lateral wall 44, and a heat insulating material 60 is fitted in the front frame 31. As the side plates 33 of the front frame 31 are not extended to the depth in the cover 40, the transfer of cold in the storage to the front plate 32 through the side plates 33 can be prevented. As the walls 44, 51 are formed at the depth side in the cover 40 to define the plurality of air chambers 53, the rigidity can be improved. COPYRIGHT: (C)2005,JPO&NCIPI
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