| 摘要 |
PURPOSE: An inversion spring for a push button switch and a push button switch using the inversion spring are provided to adjust click feelings by changing a slant angle of a skirt portion in two steps. CONSTITUTION: An inversion spring includes a base portion(5f), a push portion(5e) having a push surface(5b) thereon, and a skirt portion(5a) which is formed to be curved between the base portion and the push portion to provide a click feeling. The skirt portion is formed with a slant surface which has a taper shape from the base portion to the push portion. The slant surface is formed by using first and second slant surfaces(5g,5h) which have different slant angles at the base portion and the push portion. A click adjuster(5i) is implemented on a joint of the first and second slant surfaces to adjust the click feeling.
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