EP 0475483 A1 19920318 - Device for adapting the tension of the thread as it unwinds in a spooler.
Title (en)
Device for adapting the tension of the thread as it unwinds in a spooler.
Title (de)
Vorrichtung zur Fadenspannungsanpassung beim Abwickeln in einer Spulvorrichtung.
Title (fr)
Dispositif pour ajuster la tension du fil textile pendant le déroulement dans un bobinoir.
Publication
Application
Priority
IT 2132590 A 19900829
Abstract (en)
The present invention relates to a device for adapting the tension of the thread as it unwinds in a spooler, which is designed to wind thread at high speed, the said device comprising at least three rings (25), which act as unwinding accelerators, at least one being located above the top of the cop and the others around the unwinding cop, and the said rings occupy a fixed axial position during the entire unwinding operation, whereas they rotate angularly to open at the moment when a new supply cop is mounted and rotate back angularly to close concentrically around the cop which begins unwinding. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 57/22 (2006.01); B65H 63/08 (2006.01)
CPC (source: EP)
B65H 57/22 (2013.01); B65H 63/086 (2013.01); B65H 2701/31 (2013.01)
Citation (search report)
- [A] CH 316367 A 19561015 - INVENTA AG [CH]
- [A] US 3011736 A 19611205 - STEFAN FURST, et al
- [A] EP 0225670 A1 19870616 - PICANOL NV [BE]
- [A] GB 839368 A 19600629 - REINERS WALTER
- [A] FR 2383112 A1 19781006 - DORNIER GMBH LINDAUER [DE]
- [A] PATENT ABSTRACTS OF JAPAN, Vol. 10, No. 388 (M-549)[2445] 25 December 1986; & JP-A-61 178 373 (MURATA MACH LTD) 11 August 1986, the whole document.
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0475483 A1 19920318; IT 1242993 B 19940523; IT 9021325 A0 19900829; IT 9021325 A1 19920229
DOCDB simple family (application)
EP 91202077 A 19910814; IT 2132590 A 19900829