| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce an investment cost and a running cost when used, and to cold-insulate a bottled beverage for door-to-door delivery service after delivered, in a storage box in each household without requiring special technique. <P>SOLUTION: This cooling tool for cold-insulating the bottled beverage for the door-to-door delivery service is provided with a cap fitted to an upper lid part of the bottled beverage for the door-to-door delivery service, and a cold storage medium attached to an upper part of the cap, and this method for the door-to-door delivery service is a method using the cold-insulating tool. <P>COPYRIGHT: (C)2003,JPO |
