(19)
(11) EP 2 354 069 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.08.2012 Bulletin 2012/31

(43) Date of publication A2:
10.08.2011 Bulletin 2011/32

(21) Application number: 11152948.3

(22) Date of filing: 01.02.2011
(51) International Patent Classification (IPC): 
B65H 51/22(2006.01)
B65H 63/06(2006.01)
 B65H 54/26(2006.01)
D01H 13/10(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: 02.02.2010 JP 2010021259

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

(72) Inventors:
  • Oka, Masaki
    Kyoto 612-8686 (JP)
  • Shirakawa, Masahiko
    Kyoto 612-8686 (JP)

(74) Representative: Zimmermann, Tankred Klaus et al
Patentanwälte Schoppe, Zimmermann, Stöckeler, Zinkler & Partner Postfach 246
82043 Pullach
82043 Pullach (DE)

   


(54) Yarn winding machine


(57) A spinning machine (1) includes a winding device (12) and a slack eliminating device (8). The slack eliminating device (8) includes a slack eliminating roller (30) and a yarn detecting sensor (34). The yarn detecting sensor (34) is a reflective photo sensor having a light emitting element (41) and a light receiving element (42). An opening provided for the light emitting element (41) has a prescribed width such that a width of an irradiated range on the slack eliminating roller (30) is substantially equal to a thickness of the yarn (16).







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