EP 0489225 B1 19960911 - Two-for-one twisting spindle with pneumatic threading device
Title (en)
Two-for-one twisting spindle with pneumatic threading device
Title (de)
Doppeldraht-Zwirnspindel mit druckluftbetätigter Einfädelvorrichtung
Title (fr)
Broche à retordre à double torsion avec dispositif d'enfilage pneumatique
Publication
Application
Priority
DE 4037951 A 19901129
Abstract (en)
[origin: EP0489225A1] A two-for-one twisting spindle with pneumatically actuated threading device. The yarn is conveyed through the yarn-guide channel (12) of the yarn-storage disc (3) by means of a compressed-air jet, the outer orifice (12.1) of the yarn-guide channel being followed by a first guide face (14) which is located on the underside of the turntable (2) and which merges into a second guide face (15) curved convexly upwards. At the same time, constructive measures in the region of the outer orifice of the yarn-guide channel ensure that the compressed-air jet issuing from the outer orifice (12.2) has such an extent h in the vertical direction and the radius of curvature R of the second guide face (15) is of such a size that R/h >/= 3 is true of the ratio of the radius of curvature R to the jet extent h. This ensures that, by a utilisation of the Coanda effect, the compressed-air jet is deflected essentially vertically upwards. <IMAGE>
IPC 1-7
IPC 8 full level
D01H 1/10 (2006.01); D01H 7/86 (2006.01); D01H 13/00 (2006.01); D01H 15/007 (2006.01)
CPC (source: EP US)
D01H 7/868 (2013.01 - EP US); D01H 15/007 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0489225 A1 19920610; EP 0489225 B1 19960911; CS 201291 A3 19920617; CZ 280626 B6 19960313; DE 4120666 A1 19920604; DE 59108176 D1 19961017; JP 3108164 B2 20001113; JP H04263629 A 19920918; US 5347805 A 19940920
DOCDB simple family (application)
EP 91110296 A 19910622; CS 201291 A 19910701; DE 4120666 A 19910622; DE 59108176 T 19910622; JP 31616091 A 19911129; US 80206791 A 19911126