| 摘要 |
The covering section bar has a generally U-shaped inner housing defined by two side branches and a cross-bar, the first side branch having a fastening or snap-fastening shoulder and being elastically deformable at a first level of deformation, being of a thickness that is less than the mean thickness of the section bar, at least in the zone thereof where elastic deformation is required; the inner housing includes a first bearing zone corresponding to the fastening shoulder or situated close to the snap-fastening shoulder, a second bearing zone situated on the same side of the inner housing, and a third bearing zone situated on the second side branch and located in between the two first-mentioned bearing zones. The section bar covers either a panel or a panel-fastening section bar, after one or other of them has been inserted in its inner housing. The combination of the covering section bar and of the fastening section bar constitutes a panel frame element.
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