| 摘要 |
<p>A ceiling frame for holding ceiling panels, comprising a plurality of main runners, at least one cross runner 2 having a longitudinal direction and coupling means 7 for coupling the main runners with each other, in which the cross runner 2 comprises an upright longitudinally extending web 3 having flanges 4 extending in opposite sideways directions at its lower end for supporting edges of ceiling panels upon, and having a longitudinally extending hollow profile 6 at its upper end for providing strength. The cross runner 2 further comprises a heat expansion nose section 10 provided on at least one of its free end parts, in which the heat expansion nose section 10 forms an integral part of the cross runner 2 in that it comprises a free end part 11 of the hollow profile 6 which is separate from at least a lower part of the web 3 by a cut 12 which is at least partially 12a extending in the longitudinal direction up till an intended folding line 25 such that the nose section 10 is able to fold around the folding line 25.
An impression 21 is provided in the free end part of the hollow profile 6. The impression 21 extends over at least a lower part 20 of the hollow profile 6. The cut 12 also extends partially 12b upwards through the lower part 20 of the hollow profile 6. The upwardly extending part 12b of the cut 12 runs through the impression 21, and an upper part 23 of the hollow profile 6 which lies substantially in line with the upwardly extending part 12b of the cut forms the folding line 25.</p> |
