| 摘要 |
A wheeled dolly for the ladder has an axle that has a pair of wheels mounted thereon, which are spaced sufficiently apart for stability. The axle supports a central tube that will slip into a hollow rung of an aluminum or fiberglass ladder. The upright member has a transverse plate fastened in place for supporting a side rail of the ladder. The wheels on the axle will support one end of the ladder while the other end is raised by an operator for transport. The dolly will trail easily because of the offset of the line of force from the load of the ladder relative to the axle.
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