| (19) |
 |
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(11) |
EP 2 573 226 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.08.2015 Bulletin 2015/32 |
| (43) |
Date of publication A2: |
|
27.03.2013 Bulletin 2013/13 |
| (22) |
Date of filing: 02.07.2012 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (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 |
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Designated Extension States: |
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BA ME |
| (30) |
Priority: |
20.09.2011 JP 2011205278
|
| (71) |
Applicant: Murata Machinery, Ltd. |
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Kyoto-shi, Kyoto 601-8326 (JP) |
|
| (72) |
Inventor: |
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- Sakamoto, Naotaka
Kyoto, 612-8686 (JP)
|
| (74) |
Representative: Hoffmann Eitle |
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Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München
81925 München (DE) |
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| |
|
| (54) |
Draft device and spinning machine |
(57) A draft device (7) includes four pairs of draft roller pairs, each of the draft roller
pairs including a top roller and a bottom roller, the draft device being adapted to
draft a fiber bundle (8) by the draft roller pairs by driving the bottom rollers.
The draft device (7) includes a cleaning belt (37) and an intermittent feeding device
(101). The cleaning belt (37) has a cleaning surface adapted to make contact with
a back bottom roller (66) and a third bottom roller (67) to clean such bottom rollers.
The intermittent feeding device (101) is adapted to intermittently feed the cleaning
belt (37) by receiving power from a back bottom roller driving motor (91) adapted
to drive one of the four bottom rollers (the back bottom roller (66)).