摘要 |
<p>The support has a flat reverse frame (2) jointed at a point of reverse V-shaped supporting legs (1), where base surfaces of the reverse frame are firmly connected by multiple belts (3). The belts are fastened to the support in crosswise manner, and a unit is provided for blocking rotation of the frame in an adjusted position. The frame is rotatably fastened to an attaching pin that is provided at an upper end of the supporting legs. The frame comprises a base bar (2a), a row of bracing profiles (2b) and a strut (2c), and the legs comprise two box shaped profiles (1a, 1b).</p> |