Optical weft sensor for a loom

Details Optical weft sensor for a loom Optical weft sensor for a loom

1982-09-21

1984-09-18

Kee Chi, James

Textiles: weaving

Stopping

Weft

250227, 250561, 250571, D03D 5134, G01N 2189

Patent

active

044718160

ABSTRACT:
An optical weft sensor for a loom in which the light-receiving and light receiving elements are fixed to the loom frame and only the flexible optical fibers are disposed on the reed frame. Since no shock or vibration is applied to these electronic elements, it is possible to obtain a relatively long life time, thus improving the sensor reliability. Additionally, since the weft sensor according to the present invention is supported by a sensor holder, it is possible to readily adjust the sensor position along the reed frame or reed holder when the width of the cloth is required to change. The optical weft sensor comprises a LED, a phototransistor, optical fibers, and a detection circuit, in addition to the sensor holder.

REFERENCES:
patent: 3824401 (1974-07-01), Suzuki
patent: 3853408 (1974-12-01), Kaalverink
patent: 3978893 (1976-09-01), Inagawa et al.
patent: 4067365 (1978-01-01), Gotoh
patent: 4085777 (1978-04-01), Dadak et al.
patent: 4150699 (1979-04-01), Suekane
patent: 4188981 (1980-02-01), Suekane et al.
patent: 4384596 (1983-05-01), Brouwer et al.

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