(19)
(11) EP 2 573 227 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.11.2016 Bulletin 2016/47

(43) Date of publication A2:
27.03.2013 Bulletin 2013/13

(21) Application number: 12175082.2

(22) Date of filing: 05.07.2012
(51) International Patent Classification (IPC): 
D01H 5/66(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: 21.09.2011 JP 2011206509
09.03.2012 JP 2012053453

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

(72) Inventor:
  • Sakamoto, Naotaka
    Kyoto, 612-8686 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) Draft device, spinning unit, and spinning machine


(57) A draft device includes a roller pair (R), a switching section (31), and a suction section (41). The suction section (41) includes a suction opening (42) adapted to suck fiber dusts in proximity of a top roller, a first suction transporting pipe (43) adapted to transport the fiber dusts sucked through the suction opening (42), and a second suction transporting pipe (44) provided independently from the first suction transporting pipe (43) and adapted to be under a connected state by making contact with the first suction transporting pipe (43) at a drafting position, and an unconnected state by being separated from the first suction transporting pipe (43) at a non-drafting position. The first suction transporting pipe (43) and the second suction transporting pipe (44) are connected at downstream of the most-downstream roller pair (R) in a drafting direction of the fiber bundle (F).







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Search report