(19)
(11) EP 1 788 129 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.04.2009 Bulletin 2009/18

(43) Date of publication A2:
23.05.2007 Bulletin 2007/21

(21) Application number: 06019721.7

(22) Date of filing: 21.09.2006
(51) International Patent Classification (IPC): 
D03D 47/36(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 18.11.2005 IT TO20050810

(71) Applicant: L.G.L. Electronics S.p.A.
24024 Gandino (Bergamo) (IT)

(72) Inventors:
  • Zenoni, Pietro
    24026 Leffe (BG) (IT)
  • Castelli, Rosario
    24024 Gandino (BG) (IT)

(74) Representative: Spandonari, Carlo et al
Spandonari & Modiano s.r.l. corso Duca degli Abruzzi 16
10129 Torino
10129 Torino (IT)

   


(54) Weft stock detector for weft feeders


(57) The weft stock detector is suitable for weft feeders provided with a stationary drum (12) having yarn loops wound thereon and forming a weft stock (RT). Three feeler arms (22, 24, 26) are hinged by side of the drum about respective axes (28, 30, 32) and are biased with their respective contact ends (34a) against the lateral surface of the drum by respective biasing means for swinging in relation to the presence/absence of loops on the drum. The biasing means comprise a first magnet (42) supported on the feeler arm (34), and a second magnet (44) having equal polarity and supported at a fixed position in front of the first magnet. Each feeler arm is provided with a magnetic sensor (46) for detecting the movements of the respective feeler arm.







Search report