Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BEND PROCESSING APPARATUS, BEND PROCESSING METHOD, AND BEND PROCESSING COMA
Document Type and Number:
Japanese Patent JP2017060973
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable continuously stable processing by a small number of steps with a simple mechanism in the bend processing of a metal member with a change in curvature.SOLUTION: A bend processing apparatus is a bend processing apparatus which performs bend processing by combining an inner coma with an outer coma to form a strut, and by pressing a processing blank to the strut with a roller. The outer diameter of the inner coma is smaller than the outer diameter of the outer coma, and the inner coma and the outer coma have hollows with diameters of the same size to keep the hollow of the inner coma eccentric from the hollow of the outer coma. The processing blank is bent by being pressed to the side face of the inner coma with a first roller to move the first roller in an outer periphery direction, and the processing blank is bent by being pressed to the side face of the outer coma with a second roller to move the second roller in an outer periphery direction reverse to the direction where the first roller moves.SELECTED DRAWING: Figure 5

Inventors:
KAMATA MASAKI
OBUCHI HAJIME
MORIYA ATSUSHI
Application Number:
JP2015188234A
Publication Date:
March 30, 2017
Filing Date:
September 25, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI INFORMATION & TELECOMMUNICATION ENG LTD
International Classes:
B21D7/024; B21D37/02
Attorney, Agent or Firm:
Aoritsu patent business corporation