(19)
(11) EP 2 369 044 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.03.2015 Bulletin 2015/13

(43) Date of publication A2:
28.09.2011 Bulletin 2011/39

(21) Application number: 11159563.3

(22) Date of filing: 24.03.2011
(51) International Patent Classification (IPC): 
D01H 4/02(2006.01)
 D01H 1/115(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: 25.03.2010 JP 2010070760

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

(72) Inventor:
  • Mori, Hideshige
    Kyoto 612-8686 (JP)

(74) Representative: Stöckeler, Ferdinand 
Schoppe, Zimmermann, Stöckeler Zinkler, Schenk & Partner mbB Patentanwälte Postfach 15 15 29
80049 München
80049 München (DE)

   


(54) Pneumatic spinning device and spinning machine


(57) A pneumatic spinning device includes a nozzle block (34) and a hollow guide shaft body (20). The nozzle block (34) is provided with a depressurized suction chamber and a whirling chamber having a greater peripheral length than that of the depressurized suction chamber. The nozzle block (34) is provided with at least one air injecting nozzle (27). The air injecting nozzle (27) injects compressed air from a nozzle opening (27a) opening into the whirling chamber, thereby generating whirling airflow in the whirling chamber. A fiber passage is formed in the hollow guide shaft body (20). Moreover, the hollow guide shaft body (20) is arranged such that a tip end at an inlet of the fiber passage is located within the depressurized suction chamber. The nozzle opening (27a) is located downstream in a feeding direction of a fiber bundle than the tip end of the hollow guide shaft body (20).







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Search report