FIELD: construction, particularly movable ladders, lifting devices to be installed on ladders and vehicles.
SUBSTANCE: device comprises longitudinal members connected with each other through a number of transversal bridges, fixing means, which retains the device on building roof ridge and at least one removable wheel. Transversal bridges are made as ladder steps. Fixing means is made as skid pivotally connected to area located at or near longitudinal member ends to create double-armed levers, which may be rotated in longitudinal vertical planes. At least one front end of each skid is bent towards facial device side. Rear skid ends are pivotally connected to railing ends. Other ends thereof may be detachably connected with longitudinal member in area corresponding to different skid rotation angles, which define discretely regulated fixer opening angle.
EFFECT: extended functional capabilities due to provision of device usage as trolley, ladder and construction block.
10 cl, 9 dwg
| Title | Year | Author | Number |
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