| 摘要 |
<p>PURPOSE:To provide a collision detecting sensor which can be manufactured at low cost and be easily and surely operated by providing a displacement converting means for converting the deformation and displacement of a vehicle panel in the direction of thickness of a substrate to the displacement in the longitudinal direction of the substrate and a detecting means adapted to operate in response to the displacement and generate a collision detecting signal on a substrate disposed along a vehicle panel. CONSTITUTION:A long collision detecting sensor 20A extended in the longitudinal direction is disposed in the vertical middle position in a vehicle door 10A. When an impact is applied, an outer panel 11 of the door 10 is deformed inward, and a housing 21 of the collision detecting sensor 20A provided along the outer panel is also deformed and displaced. With the deformation and displacement, a wire 22 is largely bent between collision walls 21A from the shortest straight state to be decreased in the axial length. Accordingly, a cantilever 23B is drawn in the direction of S against a coiled spring 23D, and a limit switch 23A is operated to close its contact point, so that an electric current is applied to a spark plug of an inflator 90.</p> |
