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Patent Searching and Data


Title:
PRESS DIE FOR WORKING FLANGE
Document Type and Number:
Japanese Patent JP05228541
Kind Code:
A
Abstract:

PURPOSE: To execute press bending and notching by one press die by forming a first working surface of the lower die to the surface exceeding 90° against the supporting surface for supporting a panel.

CONSTITUTION: When the upper die 21 descends, the part protruded from the supporting surface 12 of an outer panel 41 is bent downward by the upper die 21. As a result, in the outer panel 41, a bend flange part 42 is formed. When the upper die 21 further descends, the bend flange part 42 is inserted and pressed by a first working surface 14 of the lower die 11 and a second working surface 22 of the upper die 21. That is, a first working surface of the lower die 11 is formed to the surface exceeding 90° against the supporting surface 12 for supporting the outer panel 41. Therefore, the bend flange part 42 can be pressed against a first working surface 14 by a second working surface 22 of the upper die 21, and since a notching part 15 is provided on a first working surface 14 of the lower die 11, a thin notch 44 whose plate thickness becomes T1 is formed in the bend flange part 42.


Inventors:
Umemura, Shoji
Application Number:
JP1992000069408
Publication Date:
September 07, 1993
Filing Date:
February 20, 1992
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
B21D17/02; B21D19/08; B21D21/00; B21D37/08; B21D17/00; B21D19/08; B21D21/00; B21D37/00; (IPC1-7): B21D17/02; B21D19/08; B21D21/00; B21D37/08