| 摘要 |
<p>A bar system for building constructions, comprising bars and a level adjustment means, said bars (1, 20, 40) being formed with through holes (6, 22) extending transversely in relation to the lengthwise extension of the bars and, at least adjacent said holes, with engagement parts (10, 23, 42), said level adjustment means being adapted for attachment in the bars (1, 20, 40) so as to project in the shape of load-carrying legs from the bars (1, 20, 40) against the support structure and comprising hollow rods (4), the end face of which in the attached position of the rods projects from the bar being provided with an opening (7) for attachment of said rod to the support structure by means of a fastener (5) and, at the opposite end, with external threads. In accordance with the invention, said level adjustment means also comprise internally threaded sleeves (3, 21, 41) the threads of which match those of the rods (4), in that the sleeves (3, 21, 41) are manually applicable to the bars (1, 20, 40) by engagement with the engagement parts (10, 23, 42) of the bars and in that the rods (4) are attachable to the sleeves (3, 21, 41) by thread engagement as they are being screwed into the bar, during which operation also the length by which the rods (4) project from the bar (1, 20, 40) is adjustable.</p> |
