Push button switch

A push button switch, comprising:

• a box-shaped base;
• a first operating lever and a second operating lever,
• wherein each of the first operating lever and the second operating lever has a substantially U shape in a plan view,
• wherein the first operating lever and the second operating lever are arranged on the box-shaped base pivotally about middle parts of both arms as fulcra, and
• wherein the first operating lever and the second operating lever connect the tips of the both arms mutually pivotally and support the tips of the both arms in a vertically movable manner;
• an operating cover that has a planar shape covering the connected first and second operating levers and forms an operating hole at nearly the center thereof;
• a plunger,
• wherein the plunger has a sectional shape capable of fitting into the operating hole of the operating cover,
• wherein the plunger is capable of pressing down the opening edge of the operating hole, and
• wherein the plunger is formed of a transparent material;
• a switch body,
• wherein the switch body is arranged in the middle area of the arms of the levers on the upper face of the box-shaped base, and
• wherein the switch body is driven by the plunger through the operating cover;
• and
• a light source positioned immediately below the plunger.