| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a telescopic nested ladder that enables telescopic operation regardless of a rising state or a lying state of the ladder by eliminating difference between the surface and backside of the ladder without injuring a finger supporting a strut, and also enables single strut side suspension and sideways portability in the contracted conveyance, thereby enabling a further compact and safe conveyance posture.SOLUTION: A telescopic nested ladder can be operated by one hand in operation parts of the lower side of steps 12-15, so that the operation is possible from both sides of the ladder without injuring a finger. The ladder is free from a warp habit to a specific side, and if sequentially hauling the steps 12-15 of the ladder in a lying state by one hand, calm and safe contracted operation is enabled. A removable belt 2 makes it impossible to elongate the ladder unexpectedly in a simple and easy way, and a compact conveyance posture is enabled by catching up the belt 2.</p> |
