| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coupling structure for a truck connection bar allowing a connection bar to be firmly locked, by small control force, in a bar insertion hole so as not to come out therefrom. <P>SOLUTION: In the coupling structure for a truck connection bar, a support wall portion for connecting protrusions 36 in a support block 20 does not need to be elastically deformed like a conventional elastic locking piece, for concavo-convex engagement of the connecting protrusions 36 in a bar insertion hole 41 with connecting through-holes 12 in a connection bar 11, and so the support strength of the connecting protrusions 36 in the support block 20 is increased to allow the connection bar 11 to be locked in the bar insertion hole 41 so as not to come out therefrom. Furthermore, a bar stopper 60 does not receive force in a direction to come out of an in-hole space 41S from the connection bar 11 and other component parts of the support block 20, and so locking force by an elastic locking piece 63 for having the bar stopper 60 locked in the in-hole space 41S so as not to come out therefrom can be reduced as well as the resistance to insertion/extraction of the bar stopper 60 can be reduced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
