Title:
楕円形環体の製造方法
Document Type and Number:
Japanese Patent JP4418168
Kind Code:
B2
Abstract:
A method of manufacturing an elliptic deep-drawn product including a first step of providing an intermediate product and a second step of providing an end product. In the first step, a rotary forming die is used to form in a blank a substantially round formed portion of a U-shaped cross-section. In the second step, the formed portion is deformed at its semicircular portion by press working to form an elliptic portion, being formed into a final shape.
Inventors:
Hiroshi Kato
Sugiyama Tomio
Hirohide Higashi
Saito Tsuguo
Sugiyama Tomio
Hirohide Higashi
Saito Tsuguo
Application Number:
JP2003136499A
Publication Date:
February 17, 2010
Filing Date:
May 14, 2003
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
B21D22/26; B64D29/06; B21D22/16; B21D22/18; B21D53/92; F02C7/04
Domestic Patent References:
| JP2002340291A | ||||
| JP2002147536A | ||||
| JP7167164A | ||||
| JP2002070902A | ||||
| JP7179199A |
Attorney, Agent or Firm:
Yoichiro Shimoda
Tamiya Hiroshi
Tamiya Hiroshi