Title:
THERMOFORMING METHOD FOR BELT-SHAPED FILMS
Document Type and Number:
WIPO Patent Application WO/1998/042575
Kind Code:
A1
Abstract:
A method for thermoforming a belt-shaped film excelling in strength by increasing the fluidity of the belt-shaped film while being formed. A heated surface (7a) of A1 X B1 in square measure, about 1.2 times greater in each dimension than the area A2 X B2 of an opening of a processing section, is heated to a temperature which permits forming with paired heating blocks (1b, 2b) from above and below a belt-shaped film (7), and the heated surface (7a) is thermoformed with a molding punch (10) and a molding die (11).
Inventors:
MURAKAMI KAZUHIRO (JP)
SATO SINYA (JP)
MIYAZAKI OSAMU (JP)
KANO YOSHINOBU (JP)
TSUMURA TETSUYA (JP)
SATO SINYA (JP)
MIYAZAKI OSAMU (JP)
KANO YOSHINOBU (JP)
TSUMURA TETSUYA (JP)
Application Number:
PCT/JP1998/001310
Publication Date:
October 01, 1998
Filing Date:
March 25, 1998
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MURAKAMI KAZUHIRO (JP)
SATO SINYA (JP)
MIYAZAKI OSAMU (JP)
KANO YOSHINOBU (JP)
TSUMURA TETSUYA (JP)
MURAKAMI KAZUHIRO (JP)
SATO SINYA (JP)
MIYAZAKI OSAMU (JP)
KANO YOSHINOBU (JP)
TSUMURA TETSUYA (JP)
International Classes:
B29C51/08; B29C51/42; B65B47/02; B65D73/00; (IPC1-7): B65B47/02
Foreign References:
| JPH0687153A | 1994-03-29 | |||
| JPH06305008A | 1994-11-01 | |||
| JPS61172722A | 1986-08-04 | |||
| JP3003464U | 1994-10-18 | |||
| JPS604024A | 1985-01-10 | |||
| JPS604026A | 1985-01-10 | |||
| JPH03289421A | 1991-12-19 | |||
| JPH0314427A | 1991-01-23 | |||
| JPS6011332A | 1985-01-21 | |||
| JPH03150124A | 1991-06-26 |
Attorney, Agent or Firm:
Takimoto, Tomoyuki (1006, Oaza Kadom, Kadoma-shi Osaka, JP)
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