Push-on switch

A push-on switch which comprises a movable contact plate formed by a metal plate spring, and in which said movable contact plate is fixed onto a circuit board by an adhesive tape that is bonded from a side of an upper face of said movable contact plate, said movable contact plate having:

• an annular peripheral plate portion;
• a center plate portion which is upward inflatingly curved;
• and connecting plate portions which connect said peripheral plate portion and said center plate portion together, said connecting plate portions being inverted by an operation of depressing said center plate portion to a downward inclined state to make contact with first stationary contacts on said circuit board, said center plate portion being then inverted to a downward inflated state to make contact with a second stationary contact on said circuit board, wherein said push-on switch further comprises a spacer which is placed around said movable contact plate on said circuit board, a continuous or discontinuous tape-sticking face is formed by said spacer around said movable contact plate, said tape-sticking face being lower in level than a top of said center plate portion and higher than said peripheral plate portion, and, in said adhesive tape which fixes said movable contact plate onto said circuit board, nonadhesive portions are formed in places opposing to parts of said peripheral plate portion of said movable contact plate excluding at least connecting portions with said connecting plate portions, respectively.