Title:
ROLL BENDER AND ROLL BENDING METHOD
Document Type and Number:
Japanese Patent JP2011200910
Kind Code:
A
Abstract:
To provide a multi point type roll bender by which bending work of excellent quality is achieved by small driving force, and a roll bending method using the same.
The bender includes an outside roll which is situated on the outside of radius bending of a material to be bended and an inside roll which is situated on the inside of the radius bending. The number of the outside rolls and the inside rolls are respectively three or more and rotational drive control is performed to each roll.
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Inventors:
MATSUI KATSUO
Application Number:
JP2010070721A
Publication Date:
October 13, 2011
Filing Date:
March 25, 2010
Export Citation:
Assignee:
SYOKO-ALUMINIUM CO LTD
International Classes:
B21D5/14; B21D7/16
Attorney, Agent or Firm:
Kaichi Otani