| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the reliability of a horn switch by constituting a horn switch as to sound a horn by a switch which is turned on by air pressure send out of a sponge by pressure. SOLUTION: At the time of sounding a horn 63, a pad part is pushed. By pushing the pad part 3, the pad part 3 is deformed and a sponge 52 is sandwiched between the pad part 3 and an air bag 14. Subsequently, air in the holes of the sponge 52 is sent to the casing 56 of a switch means through a pipe 54 by pressure. At that time, a pressure plate is pushed by the pressure of the air sent to the causing by pressure. Consequently, a movable side electrode is pushed and brought into contact with a fixed side electrode. An a result, a horn circuit 62 is turned on and the horn is sounded 63. On the other hand, when the pushing operation of the pad part 3 is stopped, sending air from the sponge 52 by pressure is stopped and the contact between the movable side contact and the fixed side contact is released and sounding the horn 63 is stopped.</p> |
