| 摘要 |
PURPOSE:To attain the detection of a >=360 deg.C action range by providing dogs to the sides of a rotary shaft and a shaft to be revolved and then turning on and off a switch by means of these dogs. CONSTITUTION:When a rotary shaft 10 is revolved counterclockwise, the 1st dog 13 has a contact with the 2nd dog 14. Then the shaft 10 is revolved more. Thus the dog 14 presses a level part 22 of a microswitch 12 to turn on the switch 12. Then the switch 12 delivers the detection signal for limit position of the counterclockwise action of the shaft 10. While a microswitch 11 delivers the detection signal for limit position of the clockwise action of the shaft 10. Thus it is possible to secure a working range of 360 deg.+theta for the shaft 10. |
