| 摘要 |
<p>The invention relates to ladder scaffolding comprising a simple ladder (1), whereby the height thereof can be adjusted by means of a traction cable; and a foot extension (2) which is provided with adjustable feet (23, 24) and lowerable rollers. An adjustable wall spacer (3) provided with a pair of wall rollers (15) is fixed to the head of the ladder. A rolling element (17) which can be actuated by means of a traction cable is arranged on said wall spacer. The work platform (4) can be easily placed in a working position either on the ground or when a person climbs up said ladder (1) by means of the traction cable device (5) which is fixed to the head of the ladder, whereby the traction weight (6) of the work platform (4) provides a slight ascending force. The advantages of the inventive ladder scaffolding is that fewer components are required and it can be used by a single person. The two rollers (26, 27) on the foot extension (2) are used to displace the ladder scaffolding since the ladder scaffolding rests against the building by means of the horizontally extending wall roller (rolling element (17)) which is actuated by the cable, whereby the pair of wall rollers (15) which are provided for height adjustment are automatically detached from the wall.</p> |
