MAQUINA DE COSTURA COM UM GUARDA-FIOS PARA O FIO DA ESPULA

MAQUINA DE COSTURA COM UM GUARDA-FIOS PARA O FIO DA ESPULA

PCT No. PCT/EP87/00754 Sec. 371 Date Nov. 1, 1989 Sec. 102(e) Date Nov. 1, 1989 PCT Filed Dec. 3, 1987 PCT Pub. No. WO88/07099 PCT Pub. Date Sep. 22, 1988.Thread monitor for monitoring double lock stitch shuttles or hooks and chain stitch machine shuttles or loopers. During normal operation of the s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ERICH WILLENBACHER, REINHOLD DOBNER, BERNHARD MERTEL
Format: Patent
Sprache:por
Schlagworte:
EMBROIDERING
LOOMS
METHODS OF WEAVING
SEWING
TEXTILES
TUFTING
WEAVING
WOVEN FABRICS
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Zusammenfassung:PCT No. PCT/EP87/00754 Sec. 371 Date Nov. 1, 1989 Sec. 102(e) Date Nov. 1, 1989 PCT Filed Dec. 3, 1987 PCT Pub. No. WO88/07099 PCT Pub. Date Sep. 22, 1988.Thread monitor for monitoring double lock stitch shuttles or hooks and chain stitch machine shuttles or loopers. During normal operation of the sewing machine, the shuttle thread is used as a reflection surface. The scattered light beams reflected by the thread enter photodetector 10 of the thread monitor 8. If the support surface 7, 28 is covered by thread, light beams will reach said photodetector 10, as a result of which a control circuit 12 connected to it issues a warning signal.