Method and Apparatus for Adjusting the Stitch Length on a Circular Knitting Machine
Europaisches Patentamt J European Patent Office © Publication number: 0 652 314 A1 Office europeen des brevets EUROPEAN PATENT APPLICATION © Application number: 94117387.4 Int. CI 6 D04B 9/06 @ Date of filing: 04.11.94 ® Priority: 04.11.93 JP 301323/93 Takatsuki Osaka (JP) @ Date of publication of application: Inventor: Igarashi, Yoshiaki 10.05.95 Bulletin 95/19 10-16, Shinwadai 1-chome Kobe, © Designated Contracting States: Hyogo (JP) DE ES GB IT Inventor: Hayashi, Kiyoshi 1-20-801, Motoyamanaka-cho 1-chome, © Applicant: PRECISION FUKUHARA WORKS, Higashinada-ku LTD Kobe, 1- 5, Honjo-cho 1-chome, Hyogo (JP) Higashinada-ku Inventor: Ueda, Naganori Kobe, 4-3, Kofusa-cho Hyogo 658 (JP) Kashihara, Nara (JP) @ Inventor: Sawazaki, Masatoshi 2- 4, Tenjin-cho 1-chome, Suma-ku © Representative: Naumann, Ulrich Kobe, Patentanwalte Hyogo (JP) Ullrich & Naumann, Inventor: Shibata, Takao Gaisbergstrasse 3 2-25, Tenno-cho, D-69115 Heidelberg (DE) © Method and apparatus for adjusting the stitch length on a circular knitting machine. © A method of and circular knitting machine (20) for producing a knit fabric having more uniform stitches including yarn feeders (76) feeding a plural- ity of yarns (Y) to stitch forming instrumentalities, the spacing of which affects stitch length and which is subject to change during operation of the knitting machine, a sensor (86) for sensing the tension in the plurality of yarns which changes with changes in the spacing of the stitch forming instrumentalities, and generating a signal indicative of the average tension 00 in the yarns, a comparator for comparing the sensor signal with a pre-set desired tension, a convertor for CM m converting the comparison result into a drive signal, CO and an adjuster adjusting the spacing of the stitch forming instrumentalities responsive to the drive sig- nal.
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