Switch having improved contact performance
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiromichi Koyama, Koji Sako
Life of this patent
Estimating the term…
Abstract
A switch that provides a stable contact and a superior feeling of operation despite the small profile. Its movable contact point 15 comprises a round dome section 15A, a flat section 15C formed by cutting a side alley 17B for a certain specific length and a connection section 15B provided at the outer circumference of the round dome section 15A for connecting the two items 15A and 15C together. On an insulating substrate 11, a first fixed contact point 12 is provided in an area underneath the round dome section 15A, while a second fixed contact point 13 is provided under the flat section 15C always keeping contact therewith.
Claims10
A switch comprising:
- an insulating substrate:
- a movable contact disposed above said insulating substrate, said movable contact comprising a round dome section, a flat section disposed at a place outside the circumference of the round dome section and a connection section connecting said round dome section with said flat section;
- a first fixed contact having a diameter smaller than said round dome section, disposed on said insulating substrate at a place underneath said round dome section;
- and
- a second fixed contact disposed on said insulating substrate always keeping contact with said flat section.
Dependencies are inferred from the claim text.