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Title:
DEVICE FOR MANUFACTURING PLASTIC SHEET HAVING FOLDABLE RULED LINE
Document Type and Number:
WIPO Patent Application WO/2005/087479
Kind Code:
A1
Abstract:
A device for manufacturing a plastic sheet having foldable ruled lines capable of uniformly heating the plastic sheet to form the smooth ruled lines on the sheet, comprising a punching device for manufacturing the plastic sheet having foldable ruled lines for processing the plastic sheet into a container by folding. The punching device is characterized by comprising (1) a flat plate to which a punching mold in which punching blades including a ruled line blade are buried and (2) a heat insulating flat plate having, therein, a heat insulating mechanism with a flow passage formed of a thin tube for flowing heat insulating fluid therein is disposed oppositely to the flat plate to which the punching mold having the punching blade including the ruled line blade buried therein is fixed.

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Inventors:
SUZUKI KUNITSUGU (JP)
Application Number:
PCT/JP2004/004532
Publication Date:
September 22, 2005
Filing Date:
March 30, 2004
Export Citation:
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Assignee:
SUZUKI KUNITSUGU (JP)
International Classes:
B26D7/10; B26D7/20; B26F1/40; B29C53/06; B29C59/00; B31B3/00; B31B50/25; B65B61/00; B29C35/04; B29L7/00; (IPC1-7): B29C53/06; B65B61/00
Foreign References:
JPH05212783A1993-08-24
JPH09118327A1997-05-06
JP3006932U1995-01-31
JPH05154901A1993-06-22
JP6084048B22017-02-22
JPH05185537A1993-07-27
Attorney, Agent or Firm:
Toyoda, Masao (4Fl. Kyobashi Point building, 9-7, Kyobashi 3-chome, Chuo-k, Tokyo 31, JP)
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