To provide a coupling structure for a closed cross-sectional member that is able to prevent seat surface depression and axial force reduction of a bolt.SOLUTION: A coupling structure for coupling closed cross-sectional members, each having a pair of through-holes facing each other with a space therebetween, has: a pipe having an opening at one end disposed in one of the pair of through-holes and an opening at the other end disposed in the other of the pair of through-holes, in each of the closed cross-sectional members; a patch provided on an external part of each closed cross-sectional member so that a first bolt hole smaller than an outer diameter of the pipe communicates with the pair of through holes; a bracket disposed in contact with the patch so that each of a plurality of second bolt holes communicates with the first bolt hole of the patch provided on the same side of each of the closed cross-sectional members; and a bolt inserted through the second bolt hole, the first bolt hole, and the pipe and fastened with a nut, in each of the closed cross-sectional members. The pipe is not fixed to either the closed-sectional member or the patch, and a diameter of the pair of through-holes is larger than the outer diameter of the pipe.SELECTED DRAWING: Figure 1
【課題】ボルトの座面陥没や軸力低下を抑制できる閉断面部材の結合構造を提供すること。【解決手段】離間して対向する一対の貫通穴を備えた閉断面部材同士を結合する結合構造であって、各閉断面部材の内部において、一端の開口部が一対の貫通穴の一方に配置され、他端の開口部が一対の貫通穴の他方に配置されたパイプと、パイプの外径よりも小さい第1ボルト穴が一対の貫通穴と連通するように、各閉断面部材の外部に設けられたパッチと、複数の第2ボルト穴のそれぞれが、各閉断面部材の同じ側に設けられたパッチの第1ボルト穴と連通するように、パッチに当接されたブラケットと、各閉断面部材において、第2ボルト穴、第1ボルト穴、およびパイプに挿通され、ナット締めされたボルトと、を有する。パイプは、閉断面部材およびパッチのいずれにも固定されておらず、一対の貫通穴の径は、パイプの外径よりも大きい。【選択図】図1
COUPLING STRUCTURE FOR CLOSED CROSS-SECTIONAL MEMBER
閉断面部材の結合構造
2023-06-27
Patent
Elektronische Ressource
Japanisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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