Title:
内面分割管およびその製造方法
Document Type and Number:
Japanese Patent JP4429279
Kind Code:
B2
Abstract:
An inner-space-sectioned tube wherein, in manufacturing the tube having four or more independent fluid channels formed inside thereof, while at least two lengths of inner tubes are set to inscribe an outer tube, cold working is applied, which is a simple manufacturing process, thereby enabling to reduce the number of cold drawing passes and allowing the inner space of the tube, even if the outer tube is small in size, to effectively be allocated for four independent fluid channels. Further, this inner-space-sectioned tube adopts a simple tube structure wherein the number of constituting members is reduced, thereby enabling to reduce weight while ensuring tube strength and to achieve further reduction of manufacturing costs.
More Like This:
Inventors:
Suzuki Mihiro
Tomon Nishimon
Kumagai Kazuhide
Matsuo Kazutoshi
Tomon Nishimon
Kumagai Kazuhide
Matsuo Kazutoshi
Application Number:
JP2006068298A
Publication Date:
March 10, 2010
Filing Date:
March 13, 2006
Export Citation:
Assignee:
Sumitec Steel Pipe Co., Ltd.
Honda motor industry stock company
Kobayashi Manufacturing Co., Ltd.
Honda motor industry stock company
Kobayashi Manufacturing Co., Ltd.
International Classes:
B21C37/15; B21C1/22; F16L9/19
Domestic Patent References:
| JP2000190018A | ||||
| JP2001239316A | ||||
| JP53035033B2 |
Attorney, Agent or Firm:
Michio Mori