| 摘要 |
PURPOSE:To prevent the occurrence of the change in characteristics even to abnormal acceleration caused by a drop test by providing a plurality of curved parts between the supporting point of a vibrator and the first and second leg parts. CONSTITUTION:The load generated by the shock in the up and down direction in a vibrator 1 of a mass body, which is fixed to a central part 17a of a hanging part 17d of a supporting pin 17 is applied on curved parts 17k and 17l and acts so as to change the bent angles. For arm parts 17i and 17j, the force point of the central part 17a is deviated from the centers of upright leg parts 17e and 17f. A part of the load acts so as to bend the straight-line parts of the leg parts 17e and 17f. That is to say, the load of the vibrator 1 is not concentrated on the hanging part 17d and is dispersed into the curved parts 17k and 17l and the leg parts 17e and 17f. As a result, the strong load caused by shocks is dispersed into the entire pin 17, and any place is kept within the elastic limit of the material. Thus, permanent deformation does not occur in the pin 17. This is also true for a supporting pin 27. Therefore, the maximum load caused by acceleration is dispersed into various parts of the pins 17 and 27, and any load point can be kept with in the elastic limit. The change in characteristics of the sensor does not occur. |
