Title:
METHOD AND APPARATUS FOR FORMING GROOVE OF METALLIC FOIL
Document Type and Number:
Japanese Patent JP3788285
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for forming a groove of a metallic foil capable of forming a bar groove on both surfaces of the metallic foil that generates less twisting or bowing or the like.
SOLUTION: In the position where consecutive bar grooves 2 are provided on both surfaces of the serial and tubular metallic foil 1, a through-hole 26 is provided at the prescribed interval by the hole processing section 22 in the pre-process of the groove forming section 23 and then, the bar groove 2 is formed (processed) by the groove forming section 23 on both surfaces of the metallic foil 1 including the through-hole 26.
Inventors:
Kimura expansion
Takao Sugimoto
Takao Sugimoto
Application Number:
JP2001224137A
Publication Date:
June 21, 2006
Filing Date:
July 25, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
B21B1/40; B21D17/04; (IPC1-7): B21B1/40
Domestic Patent References:
| JP55040011A | ||||
| JP62118904A | ||||
| JP4262802A | ||||
| JP47005405B1 | ||||
| JP5269537A | ||||
| JP8267102A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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