| 摘要 |
The strip structure 10 according to the present invention comprises a U-shaped section defined by a base 12 and two opposite lateral walls 13, 14. The lateral wall 14 comprises two or more projections 17, 18 inclined towards the base 12 whilst the other lateral wall 13 is provided with a branch 27 of elongate shape directed towards the inside and towards the base 12 as well as an internal projection 32. The branch 27 forms, together with the wall 13, a cavity 30 in which a projection 32 is housed, the configuration of the branch 27 being such that, when an attempt is made to extract an element inserted in the strip structure, the force necessary for extraction is considerably greater than the force necessary for installing the element in the section. <IMAGE> |
