| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fastening structure of a vehicle body frame which can suppress undesired tightening stress from being generated in a fastening portion even if components contain manufacturing errors, assembling errors and the like. <P>SOLUTION: The fastening structure M is configured to fasten a sub-frame 10 constituting part of a vehicle body frame FR to a main frame 1 constituting another part of the vehicle body frame FR with a bolt 64. The sub-frame 10 includes to-be-fixed holes 48 formed as insertion holes for the bolt 64, and the main frame 1 includes fixing holes 56 formed as screw holes. The bolt 64 is inserted into the to-be-fixed hole 48 via a clearance. Spherical surface seats 46, 54 pressure-contacting with each other by being fastened are formed around the to-be-fixed hole 48 and the fixing hole 56, respectively. <P>COPYRIGHT: (C)2013,JPO&INPIT |
