Title:
JOINED STRUCTURAL BODY AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP3830340
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a joined structural body capable of securing a high dimensional precision and toughness and having a high freedom in design and its manufacturing method.
SOLUTION: By closing a switch SW connected to a cable 16, an electric power source is supplied to an electromagnetic tube expanding coil 15 from the cable 16. As a result, the section accommodated inside a flange face 1a of a cylindrical joining member 4 is instantly expanded. Further, the section protruding from the flange face 1a of the cylindrical joining member 4 is fallen down outward and is brought into tight contact with an outer face of the flange face 1a. Also, a depth of a groove 14c is smaller than an interval between the electromagnetic coil 15 and a side face of the groove 14c, a lower end part of the cylindrical joining member 4 is deformed without receiving the resistance due to a side member support fixture 14. Further, the force to expand a hole 2b, etc., only is applied to a cross member 2, 3, fluctuation in its dimension is hardly generated.
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Inventors:
Mihisa Imamura
Satoshi Iwase
Satoshi Iwase
Application Number:
JP2000276385A
Publication Date:
October 04, 2006
Filing Date:
September 12, 2000
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21D39/08; B62D21/02; B21D26/14; B21D39/00; B21D39/06; B21D47/01; B21D53/88; F16B4/00; F16B7/00; (IPC1-7): B21D39/08; B21D39/00; B21D47/01; B21D53/88; B62D21/02; F16B4/00; F16B7/00
Domestic Patent References:
| JP9166111A | ||||
| JP10314869A | ||||
| JP2000084633A |
Foreign References:
| WO1998029667A1 |
Attorney, Agent or Firm:
Masanori Fujimaki