Title:
PIPE BENDER
Document Type and Number:
Japanese Patent JP3171696
Kind Code:
B2
Abstract:
PURPOSE: To reduce a post treatment operation after bending a tube and to avoid the waste of tube material.
CONSTITUTION: In a state clamping a tube with a bending die 2, a clamp stand 3 and a pressure stand 4, a bend driving means 6 moving with rotating the clamp stand 3 to the space separating side from the pressure stand 4 around a center 8 of a circular arc like part 2m as one body together with the bending die 2, and a feed driving means carrying a chuck 1 to the direction far and near against the pressure stand 4 are provided. Then, in the state moving with retreating the chuck 1 to the space separating side from the pressure stand 4 by releasing the clamp with the chuck 1, an end surface energizing means 36 abutting and energizing against the chucking side tube end surface of the object tube P to the space separation moving side of the clamp stand 3 in the tube center direction of the tube clamping part with the pressure stand 4 in parallel to the rotary movement of clam stand with the bend driving means 36 is provided.
Inventors:
Yukio Komai
Application Number:
JP26523992A
Publication Date:
May 28, 2001
Filing Date:
October 05, 1992
Export Citation:
Assignee:
Chiyoda Industry Co., Ltd.
International Classes:
B21D7/025; B21D9/03; (IPC1-7): B21D7/025; B21D9/03
Domestic Patent References:
| JP61222634A | ||||
| JP6297717A |
Attorney, Agent or Firm:
Shuichiro Kitamura