Title:
構造用継手部材及びその製造方法
Document Type and Number:
Japanese Patent JP5814883
Kind Code:
B2
Abstract:
A structural hydroformed joint member has projecting portions (30a, 30b) formed integrally on an outer peripheral face of a hollow main tube part (20) by hydroforming an element tube with an outside diameter D. In this case, both intersecting planes (35a, 35b), which are projecting planes of end faces (33a, 33b) of the projecting portions (30a, 30b) toward the main tube part (20), share a plane perpendicular to the main axis (40) of the main tube part (20) only in portions (36a, 36b) of the intersecting planes (35a, 35b). At that time, by setting areas of the portions (36a, 36b) to 30% or more and 90% or less relative to an area of each of the intersecting planes (35a, 35b), a projecting height of each of the projecting portions (30a, 30b) is 0.3D or higher for functioning as a joint.
Inventors:
Manabu Wada
Masaaki Mizumura
Koichi Sato
Masaaki Mizumura
Koichi Sato
Application Number:
JP2012173950A
Publication Date:
November 17, 2015
Filing Date:
August 06, 2012
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21D26/037; B21D26/053; B21D47/01; B62D25/04
Domestic Patent References:
| JP61273221A | ||||
| JP2003200234A | ||||
| JP788538A | ||||
| JP2009174006A | ||||
| JP2007331012A | ||||
| JP2005319486A | ||||
| JP61172460U | ||||
| JP11170060A |
Foreign References:
| WO2009014233A1 |
Attorney, Agent or Firm:
Takayoshi Kokubun