| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ladder for reducing burden when one performs loading and unloading load on a truck and gets on and off a load carrying space.SOLUTION: The ladder for getting on and off a truck load carrying space and used by being fixed to a gate plate is provided. When the gate plate is opened,due to weight of steps, plural steps become vertical to the gate plate, and one can get on and off by using them, when the gate plate closes, due to weight of the steps, the plural steps become parallel to the gate plate so as to be stored.</p> |
