Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PUNCHING PLATE
Document Type and Number:
Japanese Patent JPH06315729
Kind Code:
A
Abstract:

PURPOSE: To provide a punching plate which has the highly decorative effect and the highly mass productivity by penetrating holes of two kinds, at least, of the size on suitable positions and together providing a blank space without penetrating these holes.

CONSTITUTION: A large diameter hole 1 is penetrated at a multi crossing point of the squares like a checkerboard selected on a 1st orthogonal coordinates system 1a, and a small diameter hole 2 is penetrated at a multi crossing point of the squares selected on a 2nd orthogonal coordinates system 2a, which are penetrated with a punching machine at the time of imaging the 1st orthogonal coordinates system 1a like the lattice of a go board and the 2nd orthogonal coordinates system 2a whose positions are respectively deviated by a half unit length to the mutually orthogonal direction. In such a way, a letter or a graphic, etc., is formed, and together a blank part 3 is formed nearby the letter or the graphic.


Inventors:
ISHIKAWA MASAYOSHI
Application Number:
JP12821993A
Publication Date:
November 15, 1994
Filing Date:
April 30, 1993
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ISHIKAWA KANAAMI KK
International Classes:
B21D28/00; B21D28/26; B21D31/00; (IPC1-7): B21D28/00; B21D28/26; B21D31/00
Domestic Patent References:
JPH04178227A1992-06-25
Attorney, Agent or Firm:
Kubota Takumi