(19)
(11) EP 1 092 636 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.03.2002 Bulletin 2002/12

(43) Date of publication A2:
18.04.2001 Bulletin 2001/16

(21) Application number: 00122444.3

(22) Date of filing: 13.10.2000
(51) International Patent Classification (IPC)7: B65D 33/16
(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: 15.10.1999 JP 29376199
27.09.2000 US 670763

(71) Applicants:
  • Masuda, Tokihisa
    Okegawa-shi, Saitama-ken (JP)
  • Imanaka, Masatoshi
    Bunkyo-ku, Tokyo 113 (JP)

(72) Inventors:
  • Masuda, Tokihisa
    Okegawa-shi, Saitama-ken (JP)
  • Imanaka, Masatoshi
    Bunkyo-ku, Tokyo 113 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Packaging bags and method of producing same


(57) Packaging bags (1) are produced by cutting a larger material sheet into individual portions and folding each of these individual pieces to form a main body having a front wall (2), a back wall (3), side walls (4) which stand up from a flat bottom (5). A lid (6) for closing the upper opening is uniformly sloped upward from the front wall to the back wall. A ridge (7) is formed, extending upward from the back wall, for sealing the bag closed. A trapezoidally folded flap (11) extends upward from the back wall and is folded forward over the seal ridge. A pair of fastening tapes (8) is used to keep the flap detachably attached to the seal ridge such that the bag, after it is once opened, can be closed again. Instead of the fastening tapes, an elongated member serving like a belt loop may be used to keep the flap retractably inserted under it to keep the flap closed.






Search report