| 摘要 |
FIELD: construction.SUBSTANCE: transformable billboard is intended for demonstration of advertizing images consisting of static and dynamically changing parts. The transformable billboard, consists of two rigid frames telescopically connected to each other using steel cables. The demonstrated advertizing image is applied on the flexible canvas supported by rigid frames the top of which is fixed and consists of two racks, the top and bottom base beams and connections. The lower rigid frame, movable inside the top frame in the vertical direction, consists of two racks integrated by connections and four horizontal shafts, two middle ones of which are located higher than two external ones, and also above the lower base beam of the top fixed frame. The flexible canvas is freely supported by four shafts of the lower frame and rigidly fixed on base beams of the top fixed frame provided that the canvas sections located between shafts of the lower frame and the base beams of the top fixed frame are vertical.EFFECT: dynamic nature of the demonstrated information, integrity of the demonstrated images at all stages of transformation, avoidance of seams on the demonstrated surfaces.10 dwg |
