EP 1252381 A1 20021030 - WARP-GUARD DEVICE FOR WEAVING MACHINES, WARPING MACHINES AND KNITTING MACHINES
Title (en)
WARP-GUARD DEVICE FOR WEAVING MACHINES, WARPING MACHINES AND KNITTING MACHINES
Title (de)
KETTFADENWÄCHTER FÜR WEBMASCHINEN, SCHÄRMASCHINEN UND STRICKMASCHINEN
Title (fr)
DISPOSITIF DE PROTECTION DE CHAINE POUR MACHINE A TISSER, MACHINE A TISSER ET MACHINE A TRICOTER
Publication
Application
Priority
- IB 0100076 W 20010123
- IT VI20000019 A 20000124
Abstract (en)
[origin: WO0153580A1] A warp-guard device for weaving machines, warping machines and knitting machines comprises sensor means (2, 3) for detecting one or more broken yarns (Fr) forming part of a series of yarns (F) lying in the same warp plane (O), monitoring means (10, 12, 13, 14, 15) associated with the sensor means (2, 3) for signalling the broken yarns and stopping the machine. The sensor means (2, 3) are located inside a tubular body (4) located in the vicinity of the yarns (F). The tubular body (4) is connected to suction means (6) and is provided with at least one longitudinal slit (7, 8) for sucking through it at least one of the ends (F1, F2) of one or more broken yarns (Fr) intended to interact with the sensor means (2, 3). The sensor means (2, 3) comprise an array of opto-electronic elements (2) able to emit light beams (B) and facing corresponding opto-electronic elements (3) able to receive the light beams and signal the presence of the end of a broken yarn located between them. The receiving opto-electronic elements (2) are associated with corresponding signalling opto-electronic elements (9) for emitting light signals (W) in the event of broken yarns being detected.
IPC 1-7
IPC 8 full level
D02H 13/08 (2006.01); D03D 51/28 (2006.01); D04B 35/16 (2006.01)
CPC (source: EP)
D02H 13/08 (2013.01); D03D 51/28 (2013.01); D04B 35/16 (2013.01)
Citation (search report)
See references of WO 0153580A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0153580 A1 20010726; EP 1252381 A1 20021030; IT 1315177 B1 20030203; IT VI20000019 A1 20010724
DOCDB simple family (application)
IB 0100076 W 20010123; EP 01901319 A 20010123; IT VI20000019 A 20000124