| 摘要 |
PROBLEM TO BE SOLVED: To compensate the deterioration of the strength of a load receiving platform caused by the arrangement of a lock hole for storage by reinforcing the periphery of the lock hole provided in the load receiving platform by the utilization of an existing hinge tool provided at the load receiving platform.SOLUTION: A hinge tool 80 turning around a hinge pin 88 so as to be derricked is fixed to a load receiving platform 1. In the load receiving platform 1 turnable between a projecting position and storing position, a lock hole 57h which is provided at the load receiving platform 1 so as to lock the load receiving platform 1 in the storing position is covered with the hinge tool 80. |
