Title:
PUSHING-THROUGH TYPE BENDING DEVICE
Document Type and Number:
Japanese Patent JP3871416
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pushing-through type bending device with which a work is bent into a curved material having different cross-sectional shapes in the longitudinal direction without generating galling on the work.
SOLUTION: The work guiding through hole 4 of a gyroscopic die 3 is formed by being surrounded with plural rollers 5, 5, 6, 6, at least one of the rollers 5, 5, 6, 6 is provided so as to enable displacing motion to the side of the axial center of this work guiding through hole 4. By this displacing motion, the side- face part of the work W is pressed.
Inventors:
Yasuhisa Hagiwara
Takashi Tamura
Takashi Tamura
Application Number:
JP30753297A
Publication Date:
January 24, 2007
Filing Date:
November 10, 1997
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
B21D7/024; B21D7/08; (IPC1-7): B21D7/024
Domestic Patent References:
| JP63104726A | ||||
| JP3146228A |
Attorney, Agent or Firm:
Hisayoshi Shimizu
Ken Takada
Kurose Yasuhisa
Ken Takada
Kurose Yasuhisa