Title:
PRODUCTION METHOD OF LONG SHEET WITH SPROCKET HOLES
Document Type and Number:
WIPO Patent Application WO/2007/138684
Kind Code:
A1
Abstract:
A method for producing a long sheet with sprocket holes in which a plurality of
sprocket holes are formed in a plurality of rows using a device for punching sprocket
holes sequentially one by one. The method comprises a third step for setting imaginary
lines (140, 140') for every row by connecting with a line the position (A0)
of a punched sprocket hole and the position (A1) of an initially set
sprocket hole, and setting the punching positions of the a plurality of sprocket
holes for every row along the imaginary lines such that they are arranged at a constant
interval from at least the minimum allowable interval (P0-δP0)
to up to the maximum allowable interval (P0+δP0)
in the set interval P0of sprocket holes. A long sheet with sprocket
holes in which the sprocket holes are formed with high precision as compared with
prior art can thereby be produced.
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Inventors:
KATO KAZUHIKO (JP)
Application Number:
PCT/JP2006/310810
Publication Date:
December 06, 2007
Filing Date:
May 30, 2006
Export Citation:
Assignee:
BEAC CO LTD (JP)
KATO KAZUHIKO (JP)
KATO KAZUHIKO (JP)
International Classes:
B26D7/01; B26F1/00
Foreign References:
| JP2001038683A | 2001-02-13 | |||
| JPH09254097A | 1997-09-30 | |||
| JPH06232564A | 1994-08-19 | |||
| JPH02131900A | 1990-05-21 | |||
| JPH11179697A | 1999-07-06 |
Attorney, Agent or Firm:
MATSUO, Nobutaka et al. (Intellectual Property ServicesNagano Branch, 9862-60, Ochiai,Fujimi-machi, Suwa-gu, Nagano 14, JP)
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