| 摘要 |
PURPOSE: To keep a temperature of a heated or cooled drink in a PET bottle for a long period of time by providing heat insulating chambers in which a hot-keeping agent or a cold-keeping agent is put, inside a heat insulating case so as to provide a bottle storing part between both the chambers and providing an inside-outside through-hole in a cap of the case. CONSTITUTION: A heat insulating case 1 and a cap 4 are formed into a structure having therein a vacuum layer or a heat insulating layer, and the cap 4 is provided with an inside-outside through-hole 5 in which a dust-proof filter is packed. When the case is used as a cooler, cold-keeping agents 6 are frozen and put in heat insulating chambers 2, a PET bottle containing a cooled drink is put in a bottle storing part 3, and the cap 4 is applied to the case. When the case is used as a hot-keep case, hot-keeping agents 6, which are heated, are put in the heat insulating chambers 2, a PET bottle containing a heated drink is put in the bottle storing part 3, and the cap 4 is applied to the case. The through-hole 5 prevents the cap 4 from becoming hard to be opened due to a negative pressure caused by the cooling of internal air or prevents the case main body from being broken due to a positive pressure caused by the heating of internal air. Accordingly, a drink in a PET bottle can kept cold or hot for a long period of time. |
