| 摘要 |
<p>A ladder attachment includes a telescopic crossbar (1A, 2A) the ends of which carry wheels (3A) for engaging a wall on either side of the ladder. This provides stability and also sets the ladder back from the wall. The centre portion (1A) of the cross-bar has a pair of hooks (4A) which hook over a rung (5A) of the ladder and a pair of turnbuckles (9) which hook under a lower rung (12) (after which the turnbuckles (9) are tightened to secure the fixing). The turnbuckles (9) are attached to a sleeve (10) carried by the bar (1A) and have hooks (11). A platform assembly (30) can also be mounted on the ladder and connected to the ladder attachment by support struts (37). The platform assembly (30) includes a support framework (32) in which slots (33) are provided to overlie two rungs (34) and a turnbuckle (35) tightens the framework (32) against the ladder. The ladder attachment can carry a pulley by which goods can be hoisted to the person working on the ladder. The ladder attachment provides stability to the ladder and the platform, if used, enables a greater area to be made available to the person on the ladder. A spacer (50-55) device can be temporarily mounted at the top of the ladder to space it from a wall and permit fitment of the ladder attachment to the ladder. </p> |
