| 摘要 |
PURPOSE:To easily and accurately perform detection by running a twisted wire in a chip and moving the chip toward a chip stopper, and detecting the movement of the chip caused by the passage of an abnormal twisted wire part through the chip and thus detecting the abnormal twisted wire part. CONSTITUTION:A detector uses the chip 1 having a round hole whose diameter is larger than the circumscribed circle diameter of a normal twisted wire part and smaller than the maximum diameter of the abnormal twisted wire part. Then the twisted wire 11 is run through the round hole 2 of the chip and then the chip 1 is caught by the abnormal twisted wire part because the maximum diameter of the abnormal twisted wire part is larger than the round hole 2 of the chip, and then strike on a chip movement detection plate 14. Then abnormality for twisted wire is detected as an electrical signal only when the chip 1 strikes on the movement detection plate 14. Consequently, the abnormality for twisted wire is found to stop the running twisted wire, and the abnormal part is therefore easily and accurately detected.
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