| 摘要 |
PURPOSE:To set a position of detection selectively by installing a notch or slit of the specified angle without allowing one of a plurality of sensor plates to interrupt the notch or slit for detection of the other sensor plate. CONSTITUTION:Locking holes 23 are perforated in the first sensor plate 18 and located symmetrically to the center point on a straight line connecting a detecting hole 21 and the center of rotation of the sensor plate 18. Further, locking holes 24 are perforated symmetrically to the center of rotation of the second sensor plate 19 as penetrated slit with an angular aperture of 90 deg.. Consequently, the relative position of the detecting holes 21, 22 installed in the first sensor plate 18 and the second sensor plate 19 respectively with an angular range of 90 deg. selectively. By these procedures, a detecting apparatus of rotating position available for setting the detecting position in any position being required can be obtained. |
