| 摘要 |
Ladders (1) are equipped with a leaning support (20) during production or as an accessory, so that according to the use of the ladder (1), they may be set up and used with a leaning element for flat walls (5), for example even for glass surfaces or inner (21) and outer (22) corners of walls, as well as for large columns, in a safe and non-damaging manner. The invention allows people to work on a ladder with a safety against accidents which was hitherto impossible to achieve, and without damaging building components, vehicles, aircraft, ships and furniture.
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