Lateral pushing type push switch

1. A lateral pushing type push switch in which an operating portion of a push button protrudes from a side portion, an elastic dome-like metal plate is used as a movable contact, and an operating force in a moving direction of said push button due to a pressing operation on said operating portion is converted to a force in an operation direction of said dome-like metal plate perpendicular to the moving direction of said push button, wherein said switch comprises a presser having: an inclined portion which converts the operating force in the moving direction of said push button, to a force in the operation direction of said dome-like metal plate; and a pressing portion which presses down said dome-like metal plate, said presser being formed into a T-like shape which has two fixed ends and one free end, and which is flexible, said inclined portion being formed in said free end of said presser, and said dome-like metal plate being pressed down by said free end of said presser while a portion of said presser between said two fixed ends is twistingly deformed by pressing of said push button.

2. A lateral pushing type push switch according to claim 1 , wherein said presser is integrally formed and coupled to a guide member which guides and supports said push button in the moving direction of said push button.

3. A lateral pushing type push switch according to claim 2 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

4. A lateral pushing type push switch according to claim 1 , wherein said presser is integrally formed by coupling said two fixed ends of said presser to a guide member which laterally reciprocably supports said push button.

5. A lateral pushing type push switch according to claim 4 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

6. A lateral pushing type push switch according to claim 1 , wherein said push button and said presser are in line contact with each other while rounding one of contact surfaces of said push button and said presser.

7. A lateral pushing type push switch according to claim 6 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

8. A lateral pushing type push switch according to claim 1 , wherein a movable stopper is formed integrally with said push button, and a stationary stopper is formed integrally with said guide member, said stationary stopper receiving said movable stopper to restrict a movement of said push button due to a pressing operation on said operating portion, to a predetermined position.

9. A lateral pushing type push switch according to claim 8 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

10. A lateral pushing type push switch according to claim 1 , wherein said presser itself has an inclination gentler than an inclination of said inclined portion.

11. A lateral pushing type push switch according to claim 10 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

12. A lateral pushing type push switch according to claim 1 , wherein, when the movement of said push button is restricted by said movable stopper and said stationary stopper, said presser is substantially parallel to an installation surface of said dome-like metal plate.

13. A lateral pushing type push switch according to claim 12 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

14. A lateral pushing type push switch according to claim 1 , wherein said push button comprises a presser press-down portion which is integrated with said operating portion, said inclined portion causes said presser press-down portion to slide after contact, thereby converting the operating force in the moving direction of said push button, to a force in the operation direction of said dome-like metal plate, and said presser has a curved portion which is formed continuously with said inclined portion, and which deforms to absorb an excess operating force due to an excess press stroke of the push button.

15. A lateral pushing type push switch according to claim 14 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

16. A lateral pushing type push switch according to claim 1 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

17. A lateral pushing type push switch according to claim 1 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.

18. A lateral pushing type push switch according to claim 1 , wherein said presser further has a thin plate-like swing fulcrum portion.

19. A lateral pushing type push switch according to claim 1 , wherein said presser further has a flexible hinge portion which allows said inclined portion to be moved in the operation direction of said dome-like metal plate.

20. A lateral pushing type push switch in which an operating portion of a push button protrudes from a side portion, an elastic dome-like metal plate used as a movable contact, and an operating force in a moving direction of said push button due to a pressing operation on said operating portion which is converted to a force in an operation direction of said dome-like metal plate perpendicular to the moving direction of said push button, wherein said switch comprises a presser having: an inclined portion which converts the operating force in the moving direction of said push button, to a force in the operation direction of said dome-like metal plate; a flexible hinge portion which allows said inclined portion to be moved in the operation direction of said dome-like metal plate; and a pressing portion which presses down said dome-like metal plate, said pressing portion of said presser being made of a resin, and said hinge portion being formed by a metal plate spring.

21. A lateral pushing type push switch according to claim 20 , wherein said dome-like metal plate is disposed in two stages in the operation direction of said metal plate.