Title:
DRAWING METHOD
Document Type and Number:
Japanese Patent JP3404967
Kind Code:
B2
Abstract:
PURPOSE: To realize the deep drawing by securing to some extent the stock to be fed from a cushion ring side to a part of a longitudinal wall surface.
CONSTITUTION: In a drawing method where dies 16 to be interlocked with a movable die 15 from the direction different from the pressing direction are matched with a recessed part of a fixed die 11 to achieve the forming of a stock (w) to be pressed, the edge part of the stock (w) to be pressed is restricted by a cushion ring 12 and a movable die 15x and integratedly moved, and the dies 16 starts to press the stock (w) to be pressed immediately before the stock (w) to be pressed located in the vicinity of the cushion ring 12 is abutted on the periphery (point Z) of a recessed part 11j of the fixed die 11. When the dies 16 press the stock (w) to be pressed, the contact resistance of the stock (w) to be pressed with the fixed die 11 is not increased, and the amount of the stock to be fed from the cushion ring side can be secured to some extent.
Inventors:
Yoshihiro Uchiyama
Kenji Tamada
Takashi Kosaka
Hiroshi Hiyama
Kenji Tamada
Takashi Kosaka
Hiroshi Hiyama
Application Number:
JP4994895A
Publication Date:
May 12, 2003
Filing Date:
March 09, 1995
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B21D22/06; B21D22/26; B21D24/00; B21D22/20; B21D37/08; (IPC1-7): B21D24/00; B21D22/06; B21D37/08
Domestic Patent References:
| JP4210825A | ||||
| JP7124662A | ||||
| JP61148423A | ||||
| JP5966939A | ||||
| JP73827U |
Attorney, Agent or Firm:
Hidehiko Okada (3 others)
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