| 摘要 |
PURPOSE:To prevent the adherence of ice on gasket in cold area by providing projections matching with parts of door at end portions which corresponds to the opening of box and then by providing an enclosing gasket between them. CONSTITUTION:The projections 6 and 20 are providd at end portion corresponding to the opening 5 of the box 4, and the door 1 corresponding to the projections is provided with gasket 21 so that the space 22 is formed between it and the projection 6. Thus, rain and snow coming into the space 11 between the projection 8 of the door 1 and the box 4 are shut out by the projecting 6 and the space 7, preventing the direct contact of rain and snow with the gasket. And, the presence of the space 22 reduces the temperature difference between inside and outside of the box. Thus, the occurrence of dewfall on the gasket 22 can be avoided and thus the adherence of ice can be prevented and the damage to gasket by closing and opening operation can also be prevented. |
