(19)
(11) EP 1 045 056 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.09.2001 Bulletin 2001/38

(43) Date of publication A2:
18.10.2000 Bulletin 2000/42

(21) Application number: 00103086.5

(22) Date of filing: 15.02.2000
(51) International Patent Classification (IPC)7: D03D 41/00, D03D 25/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 14.04.1999 JP 10623399

(71) Applicant: Murata Kikai Kabushiki Kaisha
Minami-ku, Kyoto-shi, Kyoto 601 (JP)

(72) Inventors:
  • Uchida, Hiroshi
    Oumihachiman-shi, Shiga (JP)
  • Takashima, Hiroki
    Kusatsu-shi, Shiga (JP)

(74) Representative: Liedl, Christine, Dipl.-Chem. et al
Albert-Rosshaupter-Strasse 65
81369 München
81369 München (DE)

   


(54) Method and apparatus for weaving three-dimensional fibrous tissue and woven filter


(57) Due to their dense structures, conventional three-dimensional tissues are suitable for applications as reinforcing members but not for applications such as filters. According to the present invention, a three-dimensional fibrous tissue is woven by setting four adjacent partitions in a carrier movement space 10, shifting the carrier movement space 10 in a row and a column directions of the space by one partition to set a next carrier movement space 11, and alternately performing a rotation operation in the carrier movement space 10, 11. In addition, a filter is woven by forming woven layers 21g, 22g in a longitudinal direction of fibers at a fixed interval and adhering or welding the fibers at nodes 21p, 22p in the woven layers.






Search report