To reduce cost by reducing weight and increasing work facility.
This connecting structure of a frame structure 10 is provided for installing a plurality of hollow frames 11 in the crossing direction by brackets 30 and 40. A bolt head part 23 is formed in a noncircular shape having the major axis 23a extending in one radial direction of a screw part 21 and the minor axis 23b extending in the other radial direction orthogonally to the major axis 23a, with the axis of the screw part 21 as the center. An insertion hole 12 of the hollow frames 11 is formed in a necessary sufficient noncircular shape to be inserted and extracted in the axial direction of the screw part 21, in a state of running the major axis 23a of the bolt head part 23 in the longitudinal direction of the hollow frames 11. A pair of ribs 11b and 11b regulating the rotational movement of the major axis 23a of the bolt head part 23 when installing a bolt 20 on both sides of the corresponding insertion hole 12, are formed on an inner surface of the respective sides 11a of the hollow frames 11.
| JP2960345 | CLOSING COVER FOR JOINT AND ITS EXECUTION METHOD |
| JP3326558 | [Title of Invention] Joint |
| JP7202949 | Design method of joint structure |
| JPS5220708U | 1977-02-14 | |||
| JP2004353348A | 2004-12-16 | |||
| JP2006265848A | 2006-10-05 | |||
| JPH11293767A | 1999-10-26 | |||
| JP2000002221A | 2000-01-07 |
Takao Ito
Jiro Higuchi
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