| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a back floor ride while making it retreat. SOLUTION: This device is provided with a support frame 25, a floor plate body 28 having a fixed floor fixed on the upper face of the support frame 25 and a back floor that one end side is transferably and erectably supported by the support frame 25 at one end side of the fixed floor, a connection link 39 pivoted on one end of the back floor at one end thereof and pivoted on the support frame 25 at the other end, an arm 35 brought into contact with the underface of the back floor at one end thereof and fitted to a drive shaft 33 at the other end, and a drive mechanism 31 rotating the arm 35 by the rotary drive of the drive shaft 33 and raising the back floor while shifting one end of the back floor in the direction parting from one end side of the fixed floor by the rotary drive.</p> |
