Title:
PUNCHING BLADE FOR PUNCHING SHEET
Document Type and Number:
Japanese Patent JP2000079598
Kind Code:
A
Abstract:
To provide a punching blade for punching a sheet for obtaining a stable and firm fitting condition.
Comb teeth 3 are formed on the inner peripheral part of a circular arc board 1 formed of a cutting blade 2 on a side edge on a large diameter side. Fitting stabilization can be realized by providing plural streak engaging grooves 4 reaching to both side edges on both the obverse and reverse surfaces of the teeth 3, to slipping off prevent a punching blade by engaging the inner surfaces of cutter fitting grooves formed on the edges of the grooves 4 and a dieboard.
Inventors:
TAKEUCHI TAKAYUKI
Application Number:
JP24927398A
Publication Date:
March 21, 2000
Filing Date:
September 03, 1998
Export Citation:
Assignee:
NIPPON DAISUCHIIRU KK
International Classes:
B26D5/00; B26D1/08; (IPC1-7): B26D1/08; B26D5/00
Attorney, Agent or Firm:
Bunji Kamata (2 outside)