| 摘要 |
PROBLEM TO BE SOLVED: To improve usability of a trailer with a tilt frame. SOLUTION: When a tilt angleθof the tilt frame 16 is changed, a lock bar 26 moves so as to describe an arc while following the tilt frame 16. A sleeve 28 for slidably pivoting the lock bar 26 is journaled to a chassis frame 14 by bearings 32 and 34. Thus, the sleeve 28 follows circular motion of the lock bar 26, and slidably supports the lock bar 26 while changing an angle to the chassis frame 14. A plurality of through holes are formed on the lock bar 26. In the center of the bearings 32 and 34 of the sleeve 28, through holes corresponding to the through holes of the lock bar 26 are formed. A pin 36 is inserted into one of the through holes of the lock bar 26, and the through holes of the bearings 32 and 34 of the sleeve 28, thereby mechanically positioning the lock bar 26 and the sleeve 28. COPYRIGHT: (C)2007,JPO&INPIT
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