Title:
パイプの曲げ加工装置
Document Type and Number:
Japanese Patent JP4591908
Kind Code:
B2
Abstract:
A tube bending device having draw-bending and compression-bending functions and capable of bending in all processes in a unit of device is provided. The device performing bending by rotating the tube at a predetermined angle with the tube pressured against a circumferential surface of a bending die, the device including a movable type of tube bending unit movable in a longitudinal direction of a tube to be processed or a fixed type of tube bending unit and a tube twisting unit for rotating the tube freely at a predetermined angle with a center of the tube being an axis core is characterized in that the tube bending unit has one or both of draw-bending and compression-bending functions and is provided rotatably in a vertical plane about an axis parallel to the axis core of the tube so that the displacement amount in a tube twisting operation can be reduced.
Inventors:
Shigeru Saegusa
Application Number:
JP2003416561A
Publication Date:
December 01, 2010
Filing Date:
December 15, 2003
Export Citation:
Assignee:
Usui Kokusai Sangyo Co., Ltd.
International Classes:
B21D7/025; B21D7/024; B21D7/08
Domestic Patent References:
| JP2001205349A | ||||
| JP2001179347A | ||||
| JP2002239638A |
Attorney, Agent or Firm:
Yoshitaka Oshida
Yoshiteru Oshida
Yoshiteru Oshida