Global Patent Index - EP 3754069 A1

EP 3754069 A1 20201223 - WEFT THREAD TENSIONING DEVICE AND METHOD OF OPERATING A WEFT THREAD TENSIONING DEVICE

Title (en)

WEFT THREAD TENSIONING DEVICE AND METHOD OF OPERATING A WEFT THREAD TENSIONING DEVICE

Title (de)

SCHUSSFADENSPANNUNGSVORRICHTUNG UND VERFAHREN ZUM BETRIEB DER SCHUSSFADENSPANNUNGSVORRICHTUNG

Title (fr)

DISPOSITIF DE TENSION DE FIL DE TRAME ET PROCÉDÉ DE FONCTIONNEMENT D'UN DISPOSITIF DE TENSION DE FIL DE TRAME

Publication

EP 3754069 A1 20201223 (EN)

Application

EP 19180425 A 20190617

Priority

EP 19180425 A 20190617

Abstract (en)

A weft thread tensioning device, comprising a weft thread path defining arrangement having two weft thread passage elements (24, 26) positioned at a distance with respect to each other for receiving a weft thread such as to extend along a straight weft thread path (P) extending between the weft thread passage elements (24, 26), a weft thread deflection element (28) positioned between the weft thread passage elements (24, 26) in the direction of the weft thread path (P), the weft thread deflection element (28) being movable such as to act on a weft thread extending across the weft thread passage elements (24, 26) for deflecting the weft thread between the weft thread passage elements (24, 26) out of the straight weft thread path (P), and a deflection element drive (34) operable for moving the weft thread deflection element (28), the deflection element drive (34) having a controller (38) associated therewith for controlling the movement of the weft thread deflection element (28) for deflecting a weft thread extending across the weft thread passage elements (24, 26), is characterized in that the deflection element drive (34) comprises a rotary electric motor (36), and that the weft thread deflection element (28) is coupled to a rotor shaft of the rotary electric motor (36) and is arranged for carrying out a swiveling movement about a swivel axis (A) that is substantially parallel to the straight weft thread path (P).

IPC 8 full level

D03D 47/34 (2006.01)

CPC (source: EP US)

D03D 47/347 (2013.01 - EP US); D03J 5/24 (2013.01 - US)

Citation (applicant)

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 3754069 A1 20201223; CN 113924390 A 20220111; CN 113924390 B 20231003; EP 3983585 A1 20220420; US 2022298680 A1 20220922; WO 2020254091 A1 20201224

DOCDB simple family (application)

EP 19180425 A 20190617; CN 202080039345 A 20200529; EP 2020064951 W 20200529; EP 20728501 A 20200529; US 202017619357 A 20200529