Push-button switch structure and electronic device having same
AssigneeSharp Kabushiki Kaisha
InventorGenkei Kikuchi
Life of this patent
Estimating the term…
Abstract
A switch through hole 22 is formed in a front cabinet 5a, and a press switch 21 is located in the front cabinet 5a to correspond to the switch through hole 22. With a pressing element 25 inserted in a plate through hole 28a of a reinforcing plate 28, an outer periphery of a middle portion of the pressing element 25 in an axial direction and the plate through hole 28a are connected by a silicone rubber 27. A key top 26 is coupled to one end of the pressing element 25 in the axial direction so as to be exposed from the switch through hole 22, and a switch assembly 24 is fitted in the switch through hole 22. This structure increases durability of a push-button switch, while increasing ease of assembly of a push-button switch structure.
Claims9
A push-button switch structure of an electronic device, comprising:
- a switch through hole formed in an electronic device body;
- a press switch located in the electronic device body to correspond to the switch through hole;
- a pressing element having a first end in an axial direction that presses the press switch;
- a key top coupled to a second end of the pressing element in the axial direction, and exposed from the switch through hole;
- a reinforcing plate having a plate through hole in which the pressing element is inserted;
- and
- an elastic member which covers the reinforcing plate and which is fitted to a periphery of the switch through hole, while connecting the pressing element and the reinforcing plate by filling a gap between an outer periphery of a middle portion of the pressing element in the axial direction and the plate through hole, wherein
- a switch recess to which the elastic member is fitted is formed at the periphery of the switch through hole,
- an elastic-member fitting recess which surrounds the switch through hole is formed in a bottom surface of the switch recess, and
- an elastic-member annular recess is formed in the elastic member at a position corresponding to the elastic-member fitting recess, so as to cover an inside wall surface of the elastic-member fitting recess and an inner peripheral wall surface of the switch through hole.
Dependencies are inferred from the claim text.