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Title:
PRESS DIE
Document Type and Number:
Japanese Patent JP2013027886
Kind Code:
A
Abstract:

To provide a press die, in which a lower pad plays a role as a die for piercing, and thereby a forming process is reduced and the durability of the die is improved.

In the press die 1, an upper pad 4 and the lower pad 5 are located between a cope 2 and a drag 3, and a workpiece W is subject to a cut bend and the piercing. The lower pad 5 includes: a guide hole 10 with which four guide bars 9 erected on the drag 3 are engaged; a plurality of piercing holes 11; and two conic concave members 12. Two conic convex members 13 which fit to the two conic concave members 12 are provided on the drag 3. A pierce punch 7 inserted through a cut bend blade 6 and the piercing hole 11 is provided on the cope 2.


Inventors:
NAKAJIMA EITARO
MINAMI SHUJI
Application Number:
JP2011164007A
Publication Date:
February 07, 2013
Filing Date:
July 27, 2011
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
B21D24/16; B21D37/10
Domestic Patent References:
JPH04167933A1992-06-16
JPH08117880A1996-05-14
JPS61276723A1986-12-06
Attorney, Agent or Firm:
Yu Koyama
Osamu Kataoka



 
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