| 摘要 |
PROBLEM TO BE SOLVED: To provide a reversible thermochromic toy set with safety and high visual effect in which a user is prevented from directly touching exothermic parts and can visually recognize a color variation process during heating. SOLUTION: This reversible thermochromic toy set 1 comprises a thermochromic card 7 with a reversible thermochromic part 71 on at least a part thereof and a heating device 2 to heat the reversible thermochromic part 71 of the thermochromic card 7. The heating device 2 comprises a power source, an exothermic part 4 placed on an outer face of a body 3, and a transparent display part 6 forming a slit part 5 outside the exothermic part 4. Color of the reversible thermochromic part 71 is varied by inserting the thermochromic card 7 into the slit part 5. COPYRIGHT: (C)2007,JPO&INPIT
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