Title:
【発明の名称】結合治具
Document Type and Number:
Japanese Patent JP3106960
Kind Code:
B2
Abstract:
In a workpiece joining method using a joining jig, a distal end portion of a bolt shaft is inserted into each hole of at least one workpiece, and a sleeve is disposed onto a distal end portion of each bolt shaft. Then, an upper die of the joining jig is lowered toward the workpiece supported on a lower die so that while the workpiece is being pressed toward base end portions of the bolt shafts, a tightening portion of each nose provided on the upper die draws the outer wall of the corresponding sleeve, thus tightening the sleeves. As the tightening process progresses, the tightened portion of each sleeve progressively enters a relief portion formed immediately above the tightening portion. The thrust of the noses does not directly acts on the bolt shafts in the direction of their axes, so that the joining jig can apply a sufficient tightening force without being restricted by the strength of the bolt shafts.
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Inventors:
Kanji Ishii
Tatsuhiko Yoshimura
Tomoji Sakai
Masahiko Hamada
Tatsuhiko Yoshimura
Tomoji Sakai
Masahiko Hamada
Application Number:
JP14422896A
Publication Date:
November 06, 2000
Filing Date:
June 06, 1996
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16B35/04; B21D39/00; B21J15/02; B21J15/36; B21K1/46; B21K25/00; B23P11/00; F16B19/05; F16B37/04; F16B5/02; (IPC1-7): F16B35/04; B21D39/00; B21J15/36; F16B37/04
Domestic Patent References:
| JP5538068U |
Other References:
【文献】米国特許5171115(US,A)
【文献】国際公開94/1687(WO,A1)
【文献】国際公開94/1687(WO,A1)
Attorney, Agent or Firm:
Nobuo Kaida (2 outside)