| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a key top seat having excellent durability to repeated use and comprising a key sign display part formed by printing at the time of manufacture and highly resistant to damage. SOLUTION: After a key sign display part 32 is formed by printing on a film 30A of a thermoplastic resin, the resultant film 30A is drawn to form a key top outer part 31a. While the open part of the key top outer part 31a being set vertically upward, the resultant film 30A is put on a lower die 51, the inside of the key top outer part 31a is filled with clay-like rubber elastic body S and pressed by an upper die 52 to form an inside rigid part 31b in the key top outer part 31a and provide a key top seat 30 comprising the key top part 31. The obtained key top seat 30 is assembled on a circuit substrate while putting a spring seat between them to form a switch apparatus. |
