| 摘要 |
The present invention relates to an apparatus (1), comprising a means (2) intended to be fixed to a building element (E) through at least a threaded screw (50) anchored in a hole (52) obtained on said building element (E) and inserted inside a through hole (51) of the base (21) of said means (2). According to the invention there is provided a seal (53) made of flexible material inserted without clearance or with slight interference inside the said through hole (51) and in turn provided with a through-hole crossable by the stem (54) of said screw (50) once the said means (2) is anchored to said building element (E). The seal (53) is provided with a first collar (56) the outer face (560) whereof has an external diameter greater than both that of said through hole (51) and that of said hole (52) of said building element (E) so that, once said means (2) is tightened to said building element (E), said hole (52) is protected from infiltrations of water coming from the outside. Variants of the invention ensure such protection also from infiltrations that may come from the inside of said means (2). |
