| 摘要 |
PROBLEM TO BE SOLVED: To make trucks hardly broken and easily repairable if broken, by exchange of parts even in the trucks having a body comprising a floor plate and a side plate made of resin. SOLUTION: Lock parts 21, 22 are formed by metal members in order to lock the floor plate 11 and the side plates 13, 14, 15 made of resin and are installed at both left and right ends of the floor plate 11. The left and right lock parts 21, 22 are provided with a lock pin 24 removable/insertable to a lock partner part 28 and an operation part 27 hanging down below the floor plate at a lock position at locking and moved from the lock position to an unlock position and hanging down below the floor plate 11 at unlocking is provided on the lock pin 24. Further, the operation part 27 is rotated around a lock pin shaft to engage with an engagement hole 29 when retaining the unlocking and is projected to a front side. Thereby, it becomes a means for displaying that the lock pin 24 is in the unlock state. COPYRIGHT: (C)2005,JPO&NCIPI
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