Push switch
AssigneeMitsumi Electric Co., Ltd.
InventorsDaiki FUJIMOTO, Hidetake KIKUCHI
Life of this patent
Estimating the term…
Abstract
A push switch contains a circuit substrate, two fixed contacts disposed on the circuit substrate, a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state and a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate and having a surface facing the two fixed contacts. At least the surface of the conductive elastic member facing the two fixed contacts has conductivity. When the dome-shaped spring is displaced to the second position, the two fixed contacts are in the conductive state through the conductive elastic member.
Claims9
A push switch comprising:
- a circuit substrate;
- two fixed contacts disposed on the circuit substrate;
- a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state;
- and
- a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate,
- wherein the conductive elastic member is formed into a layer structure containing an elastic portion adhering on a surface of a central movable portion of the dome-shaped spring facing the circuit board and a conductive layer disposed on a surface of the elastic portion facing the circuit board, and
- wherein when the dome-shaped spring is displaced to the second position, the two fixed contacts are in the conductive state through the conductive layer.
A push switch comprising:
- a circuit substrate;
- a central contact disposed on the circuit substrate;
- an outer contact disposed on the circuit substrate so as to be spaced apart from the central contact;
- a dome-shaped spring which is disposed above the central contact and the outer contact and can be displaced between a first position in which the central contact and the outer contact are in a non-conductive state and a second position in which the central contact and the outer contact are in a conductive state;
- and
- a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate,
- wherein the conductive elastic member is formed into a layer structure containing an elastic portion adhering on a surface of a central movable portion of the dome-shaped spring facing the circuit board and a conductive layer disposed on a surface of the elastic portion facing the circuit board, and
- wherein when the dome-shaped spring is displaced to the second position, the central contact and the outer contact are in the conductive state through the dome-shaped spring and the conductive elastic member.
Dependencies are inferred from the claim text.