(19)
(11) EP 2 947 188 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.05.2016 Bulletin 2016/19

(43) Date of publication A2:
25.11.2015 Bulletin 2015/48

(21) Application number: 15158777.1

(22) Date of filing: 12.03.2015
(51) International Patent Classification (IPC): 
D01H 5/74(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
Designated Validation States:
MA

(30) Priority: 23.05.2014 JP 2014107378

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

(72) Inventors:
  • Miyagawa, Takashi
    Kyoto, 612-8686 (JP)
  • Hirao, Osamu
    Kyoto, 612-8686 (JP)
  • Takashima, Hiroki
    Kyoto, 612-8686 (JP)
  • Morita, Akihiro
    Kyoto, 612-8686 (JP)
  • Taruno, Yoshitaka
    Kyoto, 612-8686 (JP)

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

   


(54) DELIVERY ROLLER, DRAFTING DEVICE, AND SPINNING MACHINE


(57) A front top roller (65b) is a delivery roller arranged in a drafting device (6) to deliver a sliver (S). The front top roller (65b) includes a roller body (92) and a property modified layer (94) formed on an outer peripheral surface of the roller body (92). The roller body (92) is made of a rubber composite of a type A durometer hardness in the range from 40 to 83. The property modified layer (94) is formed by modifying the rubber composite used for making the roller body (92) such that a microhardness of the property modified layer (94) is greater than that of the roller body (92) by a value in the range from 1 to 15.







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