Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONNECTING STRUCTURE
Document Type and Number:
Japanese Patent JP3939323
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a connecting structure in which flanges which abut on parts to be attached of other members ( including a bumper reinforce and side members ) are fixed to one or both ends of a shaft member by electromagnetic forming in such a way that an enlarged part formed at the head of the shaft member does not hinder the attachment of the flanges to the other members.
SOLUTION: The end parts of the shaft member 22 are inserted into holes 29, 34 which are formed on a first and second flanges 23, 24, and expanded by the electromagnetic forming to be closely adhered to the inner peripheral surface of the hole, enlarged parts 37, 38 are formed by enlarging projecting parts at the head of the shaft member 22 radially and a bulged part 39 is formed by bulging the middle part of the shaft member 22 radially. Differences in level are formed on the first and second flanges 23, 24, so that the enlarged parts 37, 38 which are formed at the head of the shaft member 22 are situated on the same plane as attaching parts 27, 32 or inwardly from them.


Inventors:
Mihisa Imamura
Seiichi Hashimoto
Nimura Satoshi
Horiguchi Kazushige
Application Number:
JP2004302574A
Publication Date:
July 04, 2007
Filing Date:
October 18, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21D39/06; B21D26/14; B21D39/00; B21D39/08; B21D53/88; B60R19/24
Domestic Patent References:
JP9192760A
JP2004237348A
JP2002160032A
JP2002067840A
Attorney, Agent or Firm:
Kaoru Kamoto