Title:
BENDING DEVICE FOR METAL PLATES
Document Type and Number:
WIPO Patent Application WO/2002/030589
Kind Code:
A1
Abstract:
A bending device for metal plates, which is designed to reduce the frictional resistance between the convex surface of a bar-like lower form and the concave surface of a support, thereby improving the slide rotatability of the raised surface of the bar-like lower form and improving the bending accuracy of metal plates, and to increase the physical strength to reduce friction; thus, it is used as a die for a long time. The danger of the support scattering around can be simply prevented when the support is cracked by the bent front end portion of a metal plate pressed by an upper form through erroneous operation colliding with the groove of the support or the like.
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Inventors:
MAIDA TAKAAKI (JP)
Application Number:
PCT/JP2001/008973
Publication Date:
April 18, 2002
Filing Date:
October 12, 2001
Export Citation:
Assignee:
YUUGENKAISHA TAIGAA KOOSAN (JP)
MAIDA TAKAAKI (JP)
MAIDA TAKAAKI (JP)
International Classes:
B21D37/18; B21D5/01; B21D5/02; B21D37/20; (IPC1-7): B21D5/01; B21D5/02
Foreign References:
JPH10166060A | 1998-06-23 | |||
JP2000246340A | 2000-09-12 | |||
JPH0857541A | 1996-03-05 | |||
JPH0314010U | 1991-02-13 |
Attorney, Agent or Firm:
Takahashi, Akira (Nishishinbashi 3-chome Minato-ku Tokyo, JP)
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