(19)
(11) EP 0 448 518 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.12.1991 Bulletin 1991/49

(43) Date of publication A2:
25.09.1991 Bulletin 1991/39

(21) Application number: 91810184.1

(22) Date of filing: 20.03.1991
(51) International Patent Classification (IPC)5: D01H 15/00, D01H 9/00, D01H 5/26
(84) Designated Contracting States:
CH DE IT LI

(30) Priority: 22.03.1990 JP 73133/90

(71) Applicant: HOWA MACHINERY LIMITED
Nagoya-shi Aichi (JP)

(72) Inventors:
  • Sasaki, Kenji
    Komaki-shi, Aichi (JP)
  • Kato, Shinji
    Nagoya-shi, Aichi (JP)

(74) Representative: Savoye, Jean-Paul 
Moinas Kiehl Savoye & Cronin 7, route de Drize
CH-1227 Carouge
CH-1227 Carouge (CH)


(56) References cited: : 
   
       


    (54) Method and apparatus for synchronously piecing roving for a continuous feeding thereof to a ring spinning frame


    (57) A method and apparatus for synchronously piecing rovings (S1, S2) applied to a ring spinning frame in combination with a known system of transporting rovings bobbins by bobbin carriages (9) between a roving room and a spinning room, wherein rovings (S1) supplied from corresponding roving bobbins of a bobbin carriage (9) in a creel portion of the ring spinning frame are synchronously pieced with corresponding supplemental rovings (S2) taken from respective full packaged roving bobbins held by another bobbin carriage (9) in the creel portion of the ring spinning frame.






    Search report