EP 0170972 A3 19870616 - PIECING METHOD AND DEVICE FOR A FRICTION OPEN-END SPINNING MACHINE
Title (en)
PIECING METHOD AND DEVICE FOR A FRICTION OPEN-END SPINNING MACHINE
Publication
Application
Priority
DE 3428890 A 19840804
Abstract (en)
[origin: US4633660A] A process for rejoining the thread on an open-end friction-spinning device, in which fibers are fed into a V-shaped nip subjected to suction, and the thread formed in the V-shaped nip is drawn off from this and wound onto a bobbin. For rejoining, the fiber feed into the V-shaped nip is interrupted and a thread end drawn off from the bobbin is guided towards the V-shaped nip counter to the spinning direction. This thread end is paid out in front of the V-shaped nip and is stored in a joinable length in a storage station at the end of the V-shaped nip facing away from the bobbin. The bobbin is then advanced towards its drive roller and the thread is drawn off from the storage station. After a predetermined time after the start of the thread draw-off, the fibers are fed again into the V-shaped nip, where they come up against the thread end running through the V-shaped nip and are twisted together with this.
IPC 1-7
IPC 8 full level
D01H 4/52 (2006.01)
CPC (source: EP US)
D01H 4/52 (2013.01 - EP US)
Citation (search report)
- [XP] DE 3416456 A1 19841122 - SCHLAFHORST & CO W [DE]
- [XP] DE 3347726 A1 19841031 - STAHLECKER FRITZ [DE], et al
- [XP] DE 3325928 A1 19850131 - STAHLECKER FRITZ [DE], et al
- [XP] DE 3321234 A1 19841213 - STAHLECKER FRITZ, et al
- [XP] DE 3318266 A1 19841122 - STAHLECKER FRITZ [DE], et al
- [XP] DE 3315034 A1 19841031 - STAHLECKER FRITZ [DE], et al
- [E] GB 2158468 A 19851113 - REINERS VERWALTUNGS GMBH
- [A] EP 0034427 A1 19810826 - HOLLINGSWORTH UK LTD [GB]
- [A] GB 2059453 A 19810423 - SCHUBERT & SALZER MASCHINEN
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0170972 A2 19860212; EP 0170972 A3 19870616; EP 0170972 B1 19920708; BR 8503662 A 19860506; CS 276713 B6 19920812; CS 567485 A3 19920219; DE 3428890 A1 19860213; DE 3586302 D1 19920813; IN 166178 B 19900324; US 4633660 A 19870106
DOCDB simple family (application)
EP 85109206 A 19850723; BR 8503662 A 19850802; CS 567485 A 19850802; DE 3428890 A 19840804; DE 3586302 T 19850723; IN 734MA1985 A 19850920; US 77020985 A 19850828