| 摘要 |
Novelty: a multi-form constructional system made of open three-sided thin-walled metal profiles is disclosed. Constitution: two profiles (one narrow and one large profile) mutually adapted in the vertical or under inclination to form planar frames and couplers (fig. 6a,6b,7a,7b,8a,8b). The profiles bear trapezoidal channels (1,2,3) wherein the drilling screw head is immersed and projections (4,5,6,7,8,9,10,11) (fig.8a,8b) mutually assembled in multiple manners (fig.4a,4b,4c,4e,4f,5a,5b,5c,7a,7b,8a,8b) and securely connecting the frames and couplers in lightweight high-resistance spatial constructions. The configuration of the profiles is such that after their being rotated around their longitudinal axle by 180 deg. they can be adapted to one similar non-rotating section by creating thus a closed profile (fig.7a,7b,10a,10b,13a,13b)and allowing the lengthwise continuation of the profile via a “sleeve” of the same and the exploitation of all wastage as well (fig.3). Purpose: to support varying covering materials (iron sheet, panels etc) (fig.1,2). Advantage: said system can be constructed by everyone in a fast and economical manner, with no need of expensive equipment and specific capabilities, by use of standardized-length profiles and simple means. |
