| 摘要 |
PURPOSE:To obtain an acceleration sensor of high response characteristics and less hysteresis phenomena by incorporating a prescribed shape of an inertia body rolling on the top surface of an inclined supporting table in accordance with accelerations and by other things. CONSTITUTION:An inertia body 12 provided with an horn part 12b of a shape which is freely penetrated through the through-hole 16 of a supporting table and permits sliding movement without any interference in accordance with accelerations oscillates by the angles corresponding to the accelerations and the accelerations are detected by an actuator 13 of a small pressure angle with respect to the inertia body 12 interlocking thereto. The inertia bottom surface 12a of this inertia body 12 assumes a spherical shape centering at the center of gravity of the inertia body 12 and resets with good stability by contacting the inclined supporting surface of the required wedge angle of a table 11. By this constitution which is hard to receive the effect of frictional force, has less dynamic and static directivities and is good in stability, the vehicle acceleration sensor for the purpose of emergently locking a take-up device of a sheet belt, etc. of high responsive characteristics and less hysteresis phenomena is obtained. |
