Pushbutton switch member
First Claim
1. A pushbutton switch member comprising:
- a dome-shaped movable contact; and
an operation key disposed on a protrusion side of the movable contact and contacting with the movable contact, wherein pushing the operation key toward the movable contact causes the movable contact to electrically connect at least two contacts on a substrate,the operation key includes;
a key body having a pusher projecting toward the substrate and defined by a recess in the key body;
a dome part connected with an outer periphery of the key body and deformable by pushing of the key body toward the substrate;
a foot part connected with the outer periphery of the dome part and fixed on the substrate; and
a protrusion provided on a top surface of the key body or the outer periphery of the key body, protruding from the top surface of the key body, and deformable by compression during operation of pushing the operation key toward the substrate, andthe movable contact includes;
an upper contact part disposed in contact with a site directly below the key body and configured to contact with a contact of the at least two contacts when the key body is pushed in, the upper contact part defining a through-hole at its center; and
an outer fixing part disposed at the upper contact part or outside of the upper contact part in a radial direction and fixed outside of the key body of the operation key in the radial direction,wherein the recess in the key body is aligned with the through-hole in the upper contact part and the pusher contacts the upper contact part when the key body is pushed in, andwherein the outer fixing part is a band extending from a step of the movable contact and fixing the movable contact to the operation key.
1 Assignment
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Accused Products
Abstract
A pushbutton switch includes: a dome-shaped movable contact; and an operation key on a side of the movable contact. Pushing the operation key causes the movable contact to electrically connect at least two contacts. The operation key includes: a key body; a dome connected with an exterior of the key body and deformable by pushing the key body; a foot connected with an exterior of the dome; and a protrusion on top of the key body, protruding from the top, and deformable by compression. The movable contact includes: an upper contact in contact with a site below the key body and contacting the at least two contacts when the key body is pushed; and an outer fixing part at the upper contact in a radial direction and fixed outside of the key body of the operation key in the radial direction.
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Citations
19 Claims
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1. A pushbutton switch member comprising:
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a dome-shaped movable contact; and an operation key disposed on a protrusion side of the movable contact and contacting with the movable contact, wherein pushing the operation key toward the movable contact causes the movable contact to electrically connect at least two contacts on a substrate, the operation key includes; a key body having a pusher projecting toward the substrate and defined by a recess in the key body; a dome part connected with an outer periphery of the key body and deformable by pushing of the key body toward the substrate; a foot part connected with the outer periphery of the dome part and fixed on the substrate; and a protrusion provided on a top surface of the key body or the outer periphery of the key body, protruding from the top surface of the key body, and deformable by compression during operation of pushing the operation key toward the substrate, and the movable contact includes; an upper contact part disposed in contact with a site directly below the key body and configured to contact with a contact of the at least two contacts when the key body is pushed in, the upper contact part defining a through-hole at its center; and an outer fixing part disposed at the upper contact part or outside of the upper contact part in a radial direction and fixed outside of the key body of the operation key in the radial direction, wherein the recess in the key body is aligned with the through-hole in the upper contact part and the pusher contacts the upper contact part when the key body is pushed in, and wherein the outer fixing part is a band extending from a step of the movable contact and fixing the movable contact to the operation key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification