covered container

Abstract

PROBLEM TO BE SOLVED: To provide a container with a lid of which an upper lid and a lower lid can be removed integrally, and which can be securely and easily released even when an inside of a container main body is in a depressurized state, is hygienic, and exhibits high heat-insulation capacity.SOLUTION: A container includes a container main body 2 having an opening part, a lower lid 4 screwed with the container main body 2, and an upper lid 5 fitted to the lower lid 4. The lower lid 4 includes an air hole 13 arranged in a center part and communicating between an inside and an outside, and an elastic packing 14 arranged in a lower part and abutting on an inner surface of the container main body 2. The upper lid 5 includes an air hole closing packing 23 having an elastic closing part 38 in a position opposite to the air hole 13. An engagement protrusion 16 as a protruded engagement part is arranged one of an inner wall of the lower lid 4 or an outer wall of the upper wall 5. On the other of them, an engagement groove 22 which houses the engagement protrusion 16 and has an open state storage part 34 for holding an open state of the upper lid 5 and a close state storage part 31 for holding a close state is arranged. Thereby, the container can be opened while maintaining the integrated state of the upper lid 5 and the lower lid 4.

Description

technical field [0001] The present invention relates to a container with a lid. Background technique [0002] Conventionally, a container disclosed by, for example, Patent Document 1 is known as the above-mentioned type of covered container. The container has: a heat-retaining container main body formed with an upper opening; an inner cover that is detachably provided to close the upper opening of the heat-retaining container main body; and an outer cover that covers the upper part of the inner cover. Screw and install on the outer peripheral surface of the heat preservation container. Wherein, the inner cover is provided with an air passage connecting the inside and the outside, and the air passage is sealed by the air hole blocking packing of the upper cover. By adopting such a structure, even when the inside of the thermal insulation container is in a depressurized state, outside air can be introduced through the air hole, and the inside of the container can be returned...

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to insert a heat insulating material in the outer cover, and there is a problem that the thermal insulation performance is lowered.

Images