(19)
(11) EP 0 407 846 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.04.1992 Bulletin 1992/18

(43) Date of publication A2:
16.01.1991 Bulletin 1991/03

(21) Application number: 90112562.5

(22) Date of filing: 02.07.1990
(51) International Patent Classification (IPC)5A44B 19/58
(84) Designated Contracting States:
BE CH DE ES FR GB IT LI NL SE

(30) Priority: 10.07.1989 JP 177619/89

(71) Applicant: YKK CORPORATION
Chiyoda-ku, Tokyo (JP)

(72) Inventors:
  • Sanada, Yukio
    Toyama-ken (JP)
  • Kuse, Kazuki
    Toyama-ken (JP)
  • Matsumoto, Masao
    Shimoniikawa-gun, Toyama-ken (JP)

(74) Representative: Casalonga, Axel et al
BUREAU D.A. CASALONGA - JOSSE Morassistrasse 8
80469 München
80469 München (DE)


(56) References cited: : 
   
       


    (54) Method of forming space section devoid of coupling elements in continuous slide fastener chain


    (57) An improved method of forming space sections devoid of coupling elements disposed, with a predetermined distance, in a slide fastener chain which is composed of a pair of continuous rows of interengaged coupling elements. In the method of forming one space section (7) in a one-cycle, the slide fastener chain is transported intermittently below an element-removing apparatus (9). According to the preferred embodiment, the element-removing apparatus (9) includes a punch (15) and downstream (17) and upstream locating pins (18) are provided at the both ends of the punch (15). These pins (17,18) engage to two elements respectively, which are terminal end elements of a normal portion not to be the space section, for positioning a downstream side part and an upstream side part of a portion to be the space section respectively. The pins (17,18) and the punch (15) move vertically so as not to interfere with each other. The punch (15) descends to cut the rows of the elements of the both parts of the portion separately. By carrying out this one-cycle repeatedly, the space sections can be formed repeatedly one by one in the slide fastener chain, with the predetermined distance, without forming a faulty element at the opposite adjacent sides of the space section.







    Search report