(19)
(11) EP 2 107 027 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.08.2012 Bulletin 2012/34

(43) Date of publication A2:
07.10.2009 Bulletin 2009/41

(21) Application number: 09155215.8

(22) Date of filing: 16.03.2009
(51) International Patent Classification (IPC): 
B65H 59/32(2006.01)
B65H 63/02(2006.01)
 B65H 59/40(2006.01)
(84) Designated Contracting States:
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 SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 31.03.2008 JP 2008094299

(71) Applicant: Murata Machinery, Ltd.
3 Minami Ochiai-cho, Kisshoin Minami-ku, Kyoto-shi, Kyoto (JP)

(72) Inventors:
  • Imamura, Hisakatsu
    Kyoto Kyoto 612-8686 (JP)
  • Murayama, Kenichi
    Kyoto Kyoto 612-8686 (JP)

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

   


(54) Automatic winder and method for detecting malfunction in automatic winder


(57) The present invention provides an automatic winder including a winding unit (1) guiding a yarn (Y) unwound from a yarn supplying bobbin (3) through a yarn path to a yarn winding device (4) and winding the yarn (Y) into a package (P) in the yarn winding device (4) to manufacture the package (P). The automatic winder includes a tension sensor (18) measuring tension of the yarn (Y) passing through the yarn path, and a component malfunction detecting section (22) detecting any of a plurality of components of the winding unit (1) which is malfunctioning, based on a tension measured value detected by the tension sensor (18).







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Search report