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(11) | EP 2 131 004 A2 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Improved box of a counter-frame for a sliding door |
| (57) The invention relates to a box (1) of a counter-frame for a sliding door wherein
a slidably movable wing can be housed for closure or opening of a space, said box
(1) being placeable within a corresponding portion of wall adjacent with respect to
said space and comprising lateral outer surfaces (2), each one of which is suitable
to be plastered by cement-based material, said box (1) comprising a containment net
(4), provided faced toward each outer lateral surface (2); said box (1) being characterized in that said outer lateral surfaces (2) are provided with physical elements (3) so as to
permit a better coupling of said cement-based material with said outer lateral surfaces
(2), in order to prevent that the same can pour.
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[0002] More specifically, the invention concerns a box of a counter-frame permitting carrying out plastering and stoppering working, and more generally installation, in a quicker and simpler way.
[0003] As it is well known, at present, disappearing sliding doors are widely used in building and architectural fields, since they permit solving many problems of space.
[0004] Said doors mainly comprise a counter-frame made up of a box, comprised of metal, an upper sliding traverse and an abutment upright for a wing, said wing being coupled with the latter. Said wing is above coupled on its edge with said upper sliding traverse by suitable carriages, so as to be able to reach a closure position, where it is approached along a lateral edge to the abutment upright, and an opening position, where it is at least partially inserted within the box.
[0005] Counter-frame can be installed in such a way that it can replace by its volume a corresponding portion of the wall.
[0006] Box has lateral walls, which are, as already said, comprised of metal. Furthermore, a metallic net is provided faced toward each wall.
[0007] Once installed within the wished wall, lateral surface of the box is stoppered by traditional cement or mortar of cement, before the final finishing.
[0008] A problem that is often encountered by installers of sliding doors is that when cement is applied within the space individuated between the lateral surface of the box and the metallic net, on the basis of density and kind of mortar used, it tends leaking along said lateral surface (scarce grasping).
[0009] It implies that installer is obliged to continuously collect mortar, in order to prevent dirtying floor of the house where the counter-frame is being installed.
[0010] It is well evident that this procedure is onerous, since it remarkably complicates working, increasing time of installation of the whole door.
[0011] In view of the above, it is object of the present invention that of suggesting an improved counter-frame for a sliding door permitting avoiding the above technical problem, thus permitting a higher flexibility and rapidity when installing the same counter-frames.
[0012] It is therefore specific object of the present invention a box of a counter-frame for a sliding door wherein a slidably movable wing can be housed for closure or opening of a space, said box being placeable within a corresponding portion of wall adjacent with respect to said space and comprising lateral outer surfaces, each one of which is suitable to be plastered by cement-based material, said box comprising a containment net, provided faced toward each outer lateral surface; said box being characterized in that said outer lateral surfaces are provided with physical elements so as to permit a better coupling of said cement-based material with said outer lateral surfaces, in order to prevent that the same can pour.
[0013] Always according to the invention, said physical elements of said lateral surfaces can be relieves.
[0014] Still according to the invention, said relieves can have an elliptical and/or cross and/or circular shape.
[0015] Advantageously according to the invention, said physical elements of said lateral surfaces can be incisions.
[0016] Furthermore, according to the invention, said physical elements of said lateral surfaces can be undercuts.
[0017] Always according to the invention, distance between each one of said lateral outer surfaces of said box can be comprised between 5 - 10 mm, preferably 8.5 mm.
[0018] Still according to the invention, said cement-based material can be mortar and/or regular cement for laying bricks and/or quick setting cement.
[0019] The present invention will be now described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the figure of the enclosed drawings, wherein
figure 1a shows a longitudinal vertical view of a first embodiment of a box of a counter-box for sliding door according to the present invention;
figure 1b shows a plan view of the lateral surface of box according to figure 1a;
figure 1c shows a particular of the lateral surface of box of figure 1a;
figure 2a shows a longitudinal vertical view of a second embodiment of a box of a counter-box for sliding door according to the present invention;
figure 2b shows a plan view of the lateral surface of box according to figure 2a;
figure 2c shows a particular of the lateral surface of box of figure 2a;
figure 3a shows a longitudinal vertical view of a third embodiment of a box of a counter-box for sliding door according to the present invention;
figure 3b shows a plan view of the lateral surface of box according to figure 3a;
figure 3c shows a particular of the lateral surface of box of figure 3a;
figure 4a shows a longitudinal vertical view of a fourth embodiment of a box of a counter-box for sliding door according to the present invention;
figure 4b shows a plan view of the lateral surface of box according to figure 4a;
figure 4c shows a particular of the lateral surface of box of figure 4a;
figure 5a shows a longitudinal vertical view of a fifth embodiment of a box of a counter-box for sliding door according to the present invention;
figure 5b shows a plan view of the lateral surface of box according to figure 5a; and
figure 5c shows a particular of the lateral surface of box of figure 5a.
[0021] Making reference to figures 1a, 1b and 1c, it is possible observing a box 1 of an improved counter-frame for a sliding door wherein it is observed one of the two outer lateral surfaces 2.
[0022] As it is noted, said outer lateral surfaces 2 have surface workings so as to be rough, by providing physical elements. Particularly, relieves 3 are provided, having their centres at about 4 mm each other, with an elliptical shape and oriented angled with respect to the vertical edge of the box 1.
[0023] A containment net 4 is faced toward said outer lateral surface 2, said net developing all along the surface and it is placed at a distance d between 5 and 10 mm, preferably 6.5 mm.
[0024] Space created between said lateral outer surface 2 and said containment net 4 is destined to be plastered, i.e. filled in with mortar of cement. Then, it is usually carried out a last stoppering operation for finishing the work.
[0025] Working between the outer lateral surfaces 2 permits increasing contact area, and thus grasping area, between plaster mortar layer on the same surfaces, increasing the coupling each other and reducing phenomenon causing that plaster mortar cola along each surface.
[0026] Moreover, mortar, thanks to its density, is subjected to a containment action due to the containment net 4. Therefore, combined action of holding by outer lateral surfaces 2, and containment, by the containment net 4, exerted on the plaster mortar of cement that has been applied, permit preventing pouring of the same, thus preventing to the installer the needing of continuously collecting the same, and reducing time necessary to install the counter-frame.
[0027] Figures 2a - 2c, 3a - 3c, 4a - 4c and 5a - 5c show further embodiments of the lateral surface of the box 2 according to the present invention, said embodiments differing each other only for the shape of said relieves 3. Particularly:
- figures 2a - 2c show relieves 3 having an elliptical shape, grouped into groups of three each one, which are alternately oriented with an angulation;
- figures 3a - 3c show relieves 3 having a cross shape;
- figures 4a - 4c show relieves 3 having a circular shape;
- figures 5a - 5c show relieves 3 having a circular shape and provided alternate each other.
[0028] In the above embodiments, relieves have a dimension of about 1 - 3 mm, preferably 2 mm, and are spaced each other of about 3 - 5 mm, preferably 4 mm.
[0029] According to further embodiments, said physical elements of the outer lateral surfaces can be, besides relieves, incisions or undercuts.
[0030] The present invention has been described for illustrative but not limitative purposes, according to its preferred embodiments, but it is to be understood that modifications and/or changes can be introduced by those skilled in the art without departing from the relevant scope as defined in the enclosed claims.
1. Box (1) of a counter-frame for a sliding door wherein a slidably movable wing can
be housed for closure or opening of a space, said box (1) being placeable within a
corresponding portion of wall adjacent with respect to said space and comprising lateral
outer surfaces (2), each one of which is suitable to be plastered by cement-based
material, said box (1) comprising a containment net (4), provided faced toward each
outer lateral surface (2); said box (1) being characterized in that said outer lateral surfaces (2) are provided with physical elements (3) so as to
permit a better coupling of said cement-based material with said outer lateral surfaces
(2), in order to prevent that the same can pour.
2. Box according to claim 1, characterized in that said physical elements of said lateral surfaces (2) are relieves (3).
3. Box according to claim 2, characterized in that said relieves (3) have an elliptical shape.
4. Box according to claim 2 or 3, characterized in that said relieves (3) have a cross shape.
5. Box according to one of the preceding claims 2 - 4, characterized in that said relieves (3) have a circular shape.
6. Box according to one of the preceding claims, characterized in that said physical elements of said lateral surfaces (2) are comprised of incisions.
7. Box according to one of the preceding claims, characterized in that said physical elements of said lateral surfaces (2) are comprised of undercuts.
8. Box according to one of the preceding claims, characterized in that distance between each one of said lateral outer surfaces of said box is comprised
between 5 - 10 mm, preferably 8.5 mm.
9. Box according to one of the preceding claims, characterized in that said cement-based material is mortar.
10. Box according to one of the preceding claims, characterized in that said cement-based material is regular cement for laying bricks.
11. Box according to one of the preceding claims, characterized in that said cement-based material is quick setting cement.
12. Box according to each one of the preceding claims, substantially as illustrated and
described.