| 摘要 |
PROBLEM TO BE SOLVED: To provide a cold insulation box provided with a tap structure tightly latching a tap for closing a take out port opened at a cover body and improving the sealing density of the take out port. SOLUTION: The take out port 16 is opened at the proper place of a cover body A2 with a heat insulated structure closing the top opening part of a box main body A1 with the heat insulated structure, and one side of the tap 18 closing the take out port 16 is fixed to the cover body A2 by hinge structure to be turned vertically. Then, on a side opposed to the hinge structure in the tap 18, a latching member 26 projectingly forming a tongue piece 28 engaged/ disengaged to/from a projection piece 22 projectingly provided on the peripheral wall of the upper opening of the take out port in the cover body A2 is fixed to be horizontally turned. Either or both of the tongue piece 28 projectingly provided on the outer peripheral surface of the latching member or/and the projection piece 22 on the side of the cover are made taper faces the engaging degrees of both of which are gradually increased, and in addition, a packing 23 abutted to the peripheral edge of the take out port 16 at the lowest part is provided at the lower surface of the tap 18. |
