| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a portable cooler box capable of keeping an internal temperature in a box body in a low-temperature state for a long time, and retaining freshness of fresh food for a long time, enabling usage in various ways such as fishing, leisure and medical care, and usable without selecting a place both indoors and outdoors.SOLUTION: A portable cooler box is constituted of at least a box-shaped box body 1, an inner lid 2 provided thereon, a suction pipe 3 with a non-return valve, communicated to the inside of the box body 1 and projecting from a bottom surface of the inner lid 2, and suction means 4 connected thereto, and installed on the inner lid 2. It is all right that the inner lid 2 is fixed with a discharge part 5 comprising a cylindrical body 51 erected in the inner lid 2 and surrounding an outer periphery of the suction pipe 3 with a non-return valve, a cover 52 provided thereon, and a connection pipe 53 with a non-return valve, piercing and projecting from a side surface of the cylindrical body 51.</p> |
