| 摘要 |
<p>PROBLEM TO BE SOLVED: To relax vibrations transmitted to a switch in a hanging down state. SOLUTION: A switch 15 has supporting members 17 fixed to the top surface of a main case 16 and hanging plates 18, which are tightened and fixed to the supporting members 17 with bolts 10 and nuts 20. A plurality of belleville springs S are combined in parallel with each other and interposed between each hanging plate 18 and nut 20. Therefore, vibration along the center axis of the bolt 19 is absorbed and relaxed by the elastic deformation of the combined belleville springs S. That is, the relaxed vibration is applied to a welding part A of the supporting member 17. With this constitution, crackings and separation in the welding part A can be avoided.</p> |
