Title:
MANUFACTURE OF CORRUGATED FIN
Document Type and Number:
Japanese Patent JPH0949694
Kind Code:
A
Abstract:
PURPOSE: To provide a manufacturing method of a corrugated fin capable of being simply manufactured even when the height of the corrugated fin is increased.
CONSTITUTION: A cutout part 17 is provided in a part of a folding scheduled part 15 of a band-shaped raw material 13, and the raw material 13 is folded along the folding scheduled part including the cutout part and is preformed into a corrugated shape. The other end of the preformed raw material 13 is pressed against one end of the same based upon the one end of the same or the one end of the raw material and the other end of the same are pressed against the one end side whereby the raw material is folded and is molded into a final corrugated shape.
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Inventors:
MARUKASA SHIGEO
Application Number:
JP14391895A
Publication Date:
February 18, 1997
Filing Date:
May 18, 1995
Export Citation:
Assignee:
SHOWA ALUMINUM CORP
International Classes:
F28F1/30; B21D13/02; B21D53/08; F28F1/12; F28F1/32; (IPC1-7): F28F1/30; B21D13/02; B21D53/08
Domestic Patent References:
| JPS51103063A | 1976-09-11 | |||
| JPH067853A | 1994-01-18 | |||
| JPH01169298A | 1989-07-04 | |||
| JPS0814468Y1 | ||||
| JPH02255287A | 1990-10-16 | |||
| JPS6189495A | 1986-05-07 | |||
| JPS58178U | 1983-01-05 | |||
| JPS5897427A | 1983-06-09 | |||
| JPH0649652U | 1994-07-08 | |||
| JPS491465A | 1974-01-08 | |||
| JPS555191A | 1980-01-16 | |||
| JPS56130593A | 1981-10-13 | |||
| JPH0336315U | 1991-04-09 |
Attorney, Agent or Firm:
Masayuki Kushibuchi (1 person outside)
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