Global Patent Index - EP 3699337 A1

EP 3699337 A1 20200826 - DRAFTING DEVICE AND SPINNING UNIT

Title (en)

DRAFTING DEVICE AND SPINNING UNIT

Title (de)

STRECKVORRICHTUNG UND SPINNEINHEIT

Title (fr)

DISPOSITIF DE TIRAGE ET MÉTIER À FILER

Publication

EP 3699337 A1 20200826 (EN)

Application

EP 20169592 A 20190125

Priority

  • JP 2018034368 A 20180228
  • EP 19153808 A 20190125

Abstract (en)

A drafting device (6) includes a back roller pair (14), a third roller pair (15), a middle roller pair (16), and a front roller pair (17) that draft a fiber bundle (F). The drafting device (6) also includes a stepping motor that rotationally drives a back bottom roller (14a) of the back roller pair (14), a main control device (5a) that receives setting of a drafting condition about the fiber bundle (F), and a unit control device (10) that controls an operation of the stepping motor. The unit control device (10) adjusts the operation of the stepping motor such that the drafting performed by the roller pairs (14, 15, 16, 17) is within a range that satisfies the drafting condition received by the main control device (5a).

IPC 8 full level

D01H 5/26 (2006.01); D01H 5/32 (2006.01)

CPC (source: CN EP)

D01H 5/22 (2013.01 - CN); D01H 5/32 (2013.01 - CN EP); D01H 5/44 (2013.01 - CN)

Citation (applicant)

JP 2016094682 A 20160526 - MURATA MACHINERY LTD

Citation (search report)

Designated contracting state (EPC)

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 state (EPC)

BA ME

DOCDB simple family (publication)

EP 3533913 A1 20190904; EP 3533913 B1 20210106; CN 110205717 A 20190906; CN 110205717 B 20230602; EP 3699335 A1 20200826; EP 3699336 A1 20200826; EP 3699337 A1 20200826; EP 3699337 B1 20211222; JP 2019148039 A 20190905

DOCDB simple family (application)

EP 19153808 A 20190125; CN 201910086194 A 20190129; EP 20169586 A 20190125; EP 20169588 A 20190125; EP 20169592 A 20190125; JP 2018034368 A 20180228