| 摘要 |
PROBLEM TO BE SOLVED: To provide a push-button switch efficiently manufacturable at a low cost by forming, with a hoop material, a contact spring with legs easy to secure an operation stroke even when miniaturized. SOLUTION: By a dimension corresponding to a height difference between the lower ends of leg parts 41 and 42, out of leg parts 41-44 of the contact spring 4, pulled by connection bars 21 and 22 to the hoop material 20 in drawing, and the lower ends of the leg parts 43 and 44 other than them, peripheral fixed contacts 7 for mounting the leg parts 41 and 42 are so formed as to be higher than receiving surfaces 1a for mounting the leg parts 43 and 44. Therefore, all the leg parts 41-44 of the contact spring 4 are prevented from being lifted in a housing part 2 of the housing 1, so that the contact spring 4 can be disposed in a stable attitude in the housing part 2. When the fixed contacts 7 are set at the heights equivalent to those of the receiving surfaces 1a, the heights of the lower ends of all the leg parts 41-44 can be equalized by adjusting the lengths and bending shapes of the leg parts 41 and 42. COPYRIGHT: (C)2004,JPO
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