(19)
(11) EP 1 746 188 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.12.2009 Bulletin 2009/50

(43) Date of publication A2:
24.01.2007 Bulletin 2007/04

(21) Application number: 06117049.4

(22) Date of filing: 12.07.2006
(51) International Patent Classification (IPC): 
D01H 1/22(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 19.07.2005 JP 2005209132

(71) Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Kariya-shi, Aichi-ken (JP)

(72) Inventors:
  • Hayashi, Hisaaki
    Kariya-shi Aichi 448-8671 (JP)
  • Kojima, Naoki
    Kariya-shi Aichi 448-8671 (JP)
  • Fujii, Yoshimasa
    Kariya-shi Aichi 448-8671 (JP)
  • Niimi, Kiwamu
    Kariya-shi Aichi 448-8671 (JP)
  • Shinozaki, Yutaka
    Kariya-shi Aichi 448-8671 (JP)

(74) Representative: TBK-Patent 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Draft apparatus in spinning machine and control method of the same


(57) A draft apparatus (11) in a spinning machine is provided with a front bottom roller (12), a middle bottom roller (13), a back bottom roller (14), and motors (15, 16a, 16b, 17a, 17b) for independently driving the rollers (12, 13, 14). Lock means (21) inhibits the back bottom roller (14) from being rotated at least in a forward rotating direction, at least for a predetermined period after a spinning stop of the spinning machine. Accordingly, it is possible to inhibit a fiber from being excessively fed due to a torsional return of the bottom roller under the stop period of the machine, and it is possible to suppress yarn unevenness at a time of starting (Fig. 1).







Search report