Title:
【発明の名称】管端の成形方法とその装置
Document Type and Number:
Japanese Patent JP2957154
Kind Code:
B2
Abstract:
The present invention is directed to a method and apparatus for forming an end portion of a cylindrical member or cylinder. At least one roller is supported on a main shaft to be radially moved to and from the main shaft. The cylinder is supported to position the central axis thereof on the plane including the main shaft. Then, at least one of the cylinder and the roller is driven to be rotated relative to each other about an oblique axis inclined against the central axis of the cylinder, while the roller is moved radially toward the oblique axis, with the roller being in substantial contact with the outer surface of the one end portion of the cylinder. As a result, the one end portion of the cylinder is formed into a reduced diameter portion such as a tapered portion having the oblique axis.
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Inventors:
IRIE TOORU
Application Number:
JP31715497A
Publication Date:
October 04, 1999
Filing Date:
November 18, 1997
Export Citation:
Assignee:
SANGO KK
International Classes:
B21D22/14; B21D22/16; B21D41/04; F01N3/28; F01N13/18; (IPC1-7): B21D22/16; B21D41/04; F01N3/28; F01N7/18
Domestic Patent References:
| JP11147138A | ||||
| JP5441271B2 |
Attorney, Agent or Firm:
Hasegawa Yoshimichi