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Patent Searching and Data


Title:
HOLLOW SHAPE MATERIAL
Document Type and Number:
Japanese Patent JP2000343247
Kind Code:
A
Abstract:

To provide a hollow shape material for a structural body of light weight and high toughness.

Ribs 13, 13A, 13B, (23, 23A, 23B) are joined between two sheets of face plates 11, 12, (21, 22) in a truss shape, thus, a hollow shape material is constituted. The end part of one hollow shape material 10 is joined to the rib 13A constituting the truss. The face plate 21 of the other hollow shape material 20 is joined to the neighborhood of an apex of the truss of the hollow shape material 10. The face plate of the other hollow shape material 10 is joined to the neighborhood of an apex of the truss of the hollow shape material 20. The ribs 13A, 13B (13A, 23B) receive the load in friction agitation joining. The hollow shape material is of a truss structure as a whole and is made to light weight as well as high toughness.


Inventors:
NAKAMURA HIDEYUKI
KAWASAKI TAKESHI
MAKINO TOSHIAKI
SAGAWA TOSHIAKI
Application Number:
JP1999000149137
Publication Date:
December 12, 2000
Filing Date:
May 28, 1999
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B61D17/08; B23K20/12; B23K33/00; F16S1/00; B23K103/10; (IPC1-7): B23K20/12; B61D17/08; F16S1/00
Attorney, Agent or Firm:
沼形 義彰 (外1名)