| 摘要 |
PROBLEM TO BE SOLVED: To provide a push switch capable of improving positioning accuracy of an operation force concentration member to a protrusion for positioning, and capable of hardly adhering an adhesive to a press forming machine. SOLUTION: The operation force concentration member 13 for concentrating operation force granted at a movable contact point at pressure operation to a center part of the movable contact, consists of pieces formed by punching by a punch 18 from a surface of an opposite side of a flexible sheet 10 side with a release sheet 17 as a raw material peelably adhered to the flexible sheet 10 having an adhesive layer 10b. Forming of the protrusion 11 for positioning, and insertion of the operation force concentration member 13 into the protrusion 11 for positioning, are achieved by pushing the flexible sheet 10 of the whole part of the release sheet 17 to be the operation force concentration member 13 by the punch 18 in a direction separating from the release sheet 17, concurrently processing punching of the release sheet 17 by the punch 18 for forming the operation force concentration member 13, and by plastic deformation being pressed to a die 19. COPYRIGHT: (C)2009,JPO&INPIT
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