Title:
PAPER CONTAINER
Document Type and Number:
WIPO Patent Application WO/2010/001573
Kind Code:
A1
Abstract:
A paper container, wherein a pair of gable roof forming panels (13, 14), which have outer top seal panels (17, 18) and face each other, and a pair of gable wall forming panels (21, 22), which have inner top seal panels (25, 26), which face each other, and either of which is adapted to be opened as a pour opening, are connected to the upper end of body panels (4, 5, 6, 7) for forming a rectangular tube-like body, the gable wall forming panels (21, 22) are folded into between the gable roof forming panels (13, 14), and the outer top seal panels (17, 18) and the inner top seal panels (25, 26) are heated and tightly sealed at a predetermined position. The width of sealing of a top seal section (30) formed when the outer top seal panels (17, 18) and the inner top seal panels (25, 26) are heated and sealed at the predetermined position is adapted to be increased downward from the opening side (A), which is opened to become the pour opening, to the non-opening side (B). Also, top horizontal folding lines (11, 12) at the boundaries between the gable roof forming panels (13, 14) and the body panels (4, 6) are tilted downward from the opening side (A) to the non-opening side (B).
The paper container is configured, without impairing easiness of opening of the top seal section, such that the top seal section can be easily held by a user.
Inventors:
KOEDA FUJIO (JP)
SHIMIZU TOSHINARI (JP)
TUCHIDA OSAMU (JP)
TOMINAGA YOUHEI (JP)
TANAKA ATSUSHI (JP)
URANO YOSHIHIRO (JP)
SHIMIZU TOSHINARI (JP)
TUCHIDA OSAMU (JP)
TOMINAGA YOUHEI (JP)
TANAKA ATSUSHI (JP)
URANO YOSHIHIRO (JP)
Application Number:
PCT/JP2009/002977
Publication Date:
January 07, 2010
Filing Date:
June 29, 2009
Export Citation:
Assignee:
UNIV NIHON (JP)
NIPPON PAPER PAK CO LTD (JP)
KOEDA FUJIO (JP)
SHIMIZU TOSHINARI (JP)
TUCHIDA OSAMU (JP)
TOMINAGA YOUHEI (JP)
TANAKA ATSUSHI (JP)
URANO YOSHIHIRO (JP)
NIPPON PAPER PAK CO LTD (JP)
KOEDA FUJIO (JP)
SHIMIZU TOSHINARI (JP)
TUCHIDA OSAMU (JP)
TOMINAGA YOUHEI (JP)
TANAKA ATSUSHI (JP)
URANO YOSHIHIRO (JP)
International Classes:
B65D5/40
Foreign References:
| JPH10500085A | 1998-01-06 | |||
| JP2002234524A | 2002-08-20 | |||
| JPH0733820U | 1995-06-23 | |||
| JPS5088339U | 1975-07-26 | |||
| JPS5284440U | 1977-06-23 | |||
| JPH0995328A | 1997-04-08 | |||
| JPH05162784A | 1993-06-29 | |||
| JPH0733820A | 1995-02-03 |
Other References:
See also references of EP 2298656A4
Attorney, Agent or Firm:
OTSUKA, AKIHIRO (JP)
Akihiro Otsuka (JP)
Akihiro Otsuka (JP)
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