| 摘要 |
PROBLEM TO BE SOLVED: To provide an ice tray manufacturing tool permitting manufacturing two kinds of large amount of ice trays coincidently at low cost. SOLUTION: This ice tray manufacturing tool 10 consists of a pair of first type container A and second type container B, which are made of plastic and have different shapes. The first type container A has a first recessed part 1, a first step part 2, a first annular wall part 3, and a first brim part 4 while the second type container B is piled/placed on the first type container A and has a second recessed part 6 forming an interval S with a tray shape with the thickness of 1-5 cm for the first recessed part 1, a flange part 7 of which outer peripheral part is locked to the first step part 2, a second annular wall part 8 contacting the inner surface of the first annular wall part 3, and a second brim part 9. By freezing of water filled in the interval S between the piled first type container A and second type container B, a first circular shape ice tray 11 with a recessed section is formed, and by freezing of water filled in the second type container B, a second type ice tray with a flat upper surface 13 is formed. COPYRIGHT: (C)2005,JPO&NCIPI
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