EP 0499380 A1 19920819 - Yarn supply means.
Title (en)
Yarn supply means.
Title (de)
Fadenliefersystem.
Title (fr)
Système d'alimentation en fil.
Publication
Application
Priority
GB 9102956 A 19910212
Abstract (en)
In the feeding of an elastomeric yarn (10) having a very low modulus of elasticity, for example for forming a composite yarn (50) from the elastomeric yarn (10) and a relatively inelastic yarn (22) such as nylon, the elastomeric yarn is fed from a supply package (12) in a relaxed form, through a precisely controlled tensioning device (90). The tensioning device (90) includes a driven reel (91) carrying several turns of the elastomeric yarn (10) and a tension detector means comprising a pivoted arm (93) biased by a torque motor acting on a lever (97) which is pivoted (98), rotation of the lever (97) controlling a stepper motor drive to the tensioning reel (91). Since the drive to the tensioning reel (91) is continuously adjusted in response to the actual instantaneous tension in the elastomeric yarn (10), the tension can be maintained precisely throughout the supply from the package (12) which can therefore be connected nose to tail with a second reserve package (12') for high speed continuous feeding of the elastomeric yarn. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 59/38 (2006.01); D02G 3/32 (2006.01)
CPC (source: EP)
B65H 59/388 (2013.01); D02G 3/328 (2013.01); B65H 2701/319 (2013.01)
Citation (search report)
- [X] US 3657873 A 19720425 - GIBSON KIRKLAND H, et al
- [X] US 3281087 A 19661025 - LYLE CLAIBORNE JEFFERSON, et al
- [A] DE 3824034 C1 19890914
- [A] EP 0225670 A1 19870616 - PICANOL NV [BE]
Designated contracting state (EPC)
CH DE ES FR GB GR IT LI PT
DOCDB simple family (publication)
EP 0499380 A1 19920819; EP 0499380 B1 19970423; DE 69219179 D1 19970528; GB 9102956 D0 19910327
DOCDB simple family (application)
EP 92300679 A 19920127; DE 69219179 T 19920127; GB 9102956 A 19910212