(19)
(11) EP 2 479 326 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.05.2013 Bulletin 2013/21

(43) Date of publication A2:
25.07.2012 Bulletin 2012/30

(21) Application number: 12000037.7

(22) Date of filing: 04.01.2012
(51) International Patent Classification (IPC): 
D03D 51/00(2006.01)
D03D 49/10(2006.01)
 D03D 49/20(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 21.01.2011 JP 2011010858

(71) Applicant: Tsudakoma Kogyo Kabushiki Kaisha
Kanazawa-shi, Ishikawa 921-8650 (JP)

(72) Inventors:
  • Itou, Naoyuki
    Kanazawa-shi Ishikawa-ken 921-8650 (JP)
  • Tanida, Nobuo
    Kanazawa-shi Ishikawa-ken 921-8650 (JP)

(74) Representative: Samson & Partner 
Widenmayerstrasse 5
80538 München
80538 München (DE)

   


(54) Warp feeding method and warp feeding device in loom


(57) A warp feeding method in a loom in which a let-off device (5) and a take-up device (8) have a let-off motor (5c) and a take-up motor (8c) as driving sources, respectively, is provided. The let-off motor (5c) and the take-up motor (8c) are independent of a main driving motor of the loom. The method includes the steps of performing a warp feeding operation by driving the let-off motor (5c) and the take-up motor (8c) while the main driving motor is stopped; during the warp feeding operation, detecting a tension of a warp; comparing a warp tension value that is based on the detection with a previously set reference value of the tension of the warp; and if the warp tension value is not the reference value, performing tension control for returning the tension of the warp to the reference value in accordance with a previously set control mode in which the let-off motor (5c) and the take-up motor (8c) are control objects.







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Search report