(19)
(11) EP 2 366 649 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.04.2012 Bulletin 2012/16

(43) Date of publication A2:
21.09.2011 Bulletin 2011/38

(21) Application number: 11156725.1

(22) Date of filing: 03.03.2011
(51) International Patent Classification (IPC): 
B65H 54/46(2006.01)
B65H 54/10(2006.01)
B65H 54/44(2006.01)
 B65H 54/28(2006.01)
B65H 54/42(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: 17.03.2010 JP 2010060890

(71) Applicant: Murata Machinery, Ltd.
Kyoto-shi, Kyoto 601-8326 (JP)

(72) Inventors:
  • Tanigawa, Yasunobu
    Kyoto 612-8686 (JP)
  • Muta, Katsufumi
    Kyoto 612-8686 (JP)
  • Namikawa, Tetsuya
    Kyoto 612-8686 (JP)
  • Mori, Hideshige
    Kyoto 612-8686 (JP)

(74) Representative: Vogeser, Werner et al
Hansmann & Vogeser Patent- und Rechtsanwälte Maximilianstrasse 4b
82319 Starnberg
82319 Starnberg (DE)

   


(54) Yarn winding machine


(57) An automatic winder includes a cradle, a contact roller (29) and a traverse device. The cradle rotatably supports a winding bobbin (22) around which a yarn is wound into a package (30). The contact roller (29) rotates while making contact with the package (30). The traverse device is provided independently from the contact roller (29), and traverses the yarn with respect to a surface of the package (30). The contact roller 29 is formed as a taper shape. A larger and smaller diameter ratio (d2/d1) of the contact roller (29) is smaller than a larger and smaller diameter ratio (D2/D1) of the winding bobbin (22).







Search report