| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable push-button switch causing no electrical contact failure even under any environment such as one having dust, water, harmful gas, or the like. SOLUTION: This push-button switch is to switch the contacts 10, 11, 12, 13 of a circuit having a common terminal 16, a normal close terminal 14, and a normal open terminal 15 by pushing an operating button 3 protruding toward the outside of a case 1. The whole of the outside of the operating button 3 is sealed by being covered with a gasket 4 made of ethylene-propylene-based copolymer rubber. COPYRIGHT: (C)2007,JPO&INPIT
|
