| 摘要 |
<p>PURPOSE:To provide a sensor which detects the presence of an object regardless of the sizes without damaging the object by providing a signal outputting part and a detecting part, which detects the presence of the object, on the edges of the two arms of an L-shaped fixing material permitting the parts to face each other. CONSTITUTION:A signal outputting part 1 and a detecting part 2 which detects the presence of an object are provided by facing each other at the edges of the two arms of an L-shaped fixing material 3. For example, a light projecting type signal outputting part 1 and a light receiving type detecting part 2 are provided at the edges of the two arms of the L-shaped fixing material 3 permitting the parts to face each other so as to constitute an object detecting sensor 30. The sensor 30 is arranged on an object carrying plate 10 so as to position an object 4 to be detected at the top of the arm whereupon the light receiving type detecting part 2 is provided, and the presence of the object 4 is detected by the reaching and unreaching of an signal outputted from the outputting part 1 in response to the presence of the object 4.</p> |
