| 摘要 |
PROBLEM TO BE SOLVED: To provide a pushbutton switch which prevents looseness or biased abrasion of a pushbutton or an interlock piece and can perform interlocking with accuracy by preventing blurring of the shaft and letting the contact face turn without changing the height, even when the interlock piece tilts and a contacting face on the line orthogonal to the tilting direction turns. SOLUTION: With the push-button switch in which a support protruding piece 2 is fitted in protrusion on the pushbutton switch main body 1, and at same time, four pushbuttons 3 are arranged in symmetrical positions around the support protruding piece 2 and an interlock piece 4 in contact with each pushbutton 3 is to be supported in free tilting by the support protruding piece 2, each contacting face 41 of the interlock piece 4 in contact with the pushbutton 3 is formed in spherical surface, and at same time, a support face 21 of the support protrusion piece 2 is formed in spherical face, and each contacting face 41 of the interlock piece 4 and the support face 21 of the support protrusion piece 2 are to be set almost at the same height.
|
