Push switch and method for manufacturing the same
AssigneePanasonic Corporation
InventorsYusuke NAKAOKA, Masatsugu TAKEUCHI
Life of this patent
Estimating the term…
Abstract
A push switch includes a case having a recess portion, a first fixed contact placed in the recess portion, and a second fixed contact placed in the recess portion. Furthermore, the push switch includes a dome-shaped movable contact placed in the recess portion and having a center portion facing the first fixed contact with a space therebetween, a protective sheet for covering the recess portion, and a protrusion member fixed to the protective sheet by welding at a convex side of the center portion of the movable contact. The first fixed contact and the second fixed contact are provided at positions that are brought into contact with the movable contact when the movable contact is elastically reversed.
Claims8
A push switch, comprising:
- a case having a recess portion;
- a first fixed contact placed in the recess portion;
- a second fixed contact placed in the recess portion;
- a dome-shaped movable contact placed in the recess portion and having a center portion facing the first fixed contact with a space therebetween;
- a protective sheet for covering the recess portion;
- and
- a protrusion member fixed to the protective sheet by welding at a convex side of the center portion of the movable contact,
- wherein the first fixed contact and the second fixed contact are provided at positions where they are brought into contact with the movable contact when the movable contact is elastically reversed.
A method for manufacturing a push switch, the method comprising:
- placing a first fixed contact in a recess portion of a case;
- placing a second fixed contact in the recess portion;
- placing a dome-shaped movable contact having a center portion facing the first fixed contact with a space therebetween in the recess portion;
- placing a protective sheet so as to cover the recess portion;
- and
- fixing a protrusion member to the protective sheet by welding at a convex side of the center portion of the movable contact.
Dependencies are inferred from the claim text.