EP0115361A1 - Ceramic tile with its rear configured as uniformly distributed hexagonal cells - Google Patents
Ceramic tile with its rear configured as uniformly distributed hexagonal cells Download PDFInfo
- Publication number
- EP0115361A1 EP0115361A1 EP84200045A EP84200045A EP0115361A1 EP 0115361 A1 EP0115361 A1 EP 0115361A1 EP 84200045 A EP84200045 A EP 84200045A EP 84200045 A EP84200045 A EP 84200045A EP 0115361 A1 EP0115361 A1 EP 0115361A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tile
- impressions
- ceramic tile
- uniformly distributed
- hexagonal cells
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/142—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays
Definitions
- the present industrial invention patent relates to a special configuration of the reverse face of ceramic paving or facing tiles.
- Normal ceramic tiles are known to be constituted by a clay support which after forming is fired and glazed by one of the known ceramic double or single firing processes.
- the reverse face or rear of these tiles is also known to comprise a series of feet or studs which have the double purpose of acting as spacers during the firing of the material when in a stacked condition, and of facilitating their grip against the respective surfaces on which they are laid.
- a first drawback derives from the fact that the clay is more compacted at said studs than in the adjacent zones of the corresponding support, so that the differently compacted zones react differently to the application of the glaze and/or any decoration, so that different colour tones appear after firing said glaze and/or decoration.
- tiles which have just been formed are particularly sensitive to impact acting in the plane orthogonal to that in which they lie, for example during their transfer along conveying lines, and they are thus easily subject to breakage.
- the present invention provides and protects a special tile rear configuration able to obviate the aforesaid. This is attained according to the invention by providing a tile rear having a plurality of uniformly distributed hexagonal cells which cover the reverse face of the tile with the exception of a narrow perimetral rim, and which have a depth of between 0.5 and 3 mm.
- said tile rear is configured as a honeycomb, so as to provide a perfectly plane rear resting face. Furthermore, according to the invention, a tile with this rear has very regular cross-sections, so that a tile which has just been formed is uniformly compacted and thus more resistant to impact, and during its firing there is almost regular shrinkage without appreciable variation in the planarity of the support or in the linearity of its sides, and its front face reacts uniformly to the application of glaze and/or decoration.
- the tile rear according to the invention provides a coefficient of grip which has not been obtainable up to the present time.
- Said figures show a ceramic tile 1 of right square or rectangular shape, but which can assume any other known tile shape.
- the plane rear of this latter with the exception of a narrow perimetral band 2 which is internally coplanar with said rear whereas externally it extends into a bevel, is provided with a plurality of uniformly distributed hexagonal impressions 3.
- the depth of these impressions 3 is of the order of 0.5-3 mm, and the average thickness of the separation ribs is between 1 and 2.5 mm.
- the side of the hexagon can vary from 3 to 5 mm, and is preferably 4 mm.
- the density of these impressions 3 is therefore between 4 and 1.5 impressions per square centimetre.
Abstract
Description
- The present industrial invention patent relates to a special configuration of the reverse face of ceramic paving or facing tiles.
- Normal ceramic tiles are known to be constituted by a clay support which after forming is fired and glazed by one of the known ceramic double or single firing processes. The reverse face or rear of these tiles is also known to comprise a series of feet or studs which have the double purpose of acting as spacers during the firing of the material when in a stacked condition, and of facilitating their grip against the respective surfaces on which they are laid.
- For example, in the case of a tile of 20 x 20 cm format, twelve frusto-conical studs are normally provided having an area of about 1 cm 2 at their summit. Such known tiles have drawbacks which have not yet been obviated.
- A first drawback derives from the fact that the clay is more compacted at said studs than in the adjacent zones of the corresponding support, so that the differently compacted zones react differently to the application of the glaze and/or any decoration, so that different colour tones appear after firing said glaze and/or decoration.
- Furthermore, again because of said different degrees of compacting, corresponding differential shrinkage is obtained during the firing this negatively influencing the planarity of said support and the linearity of its sides.
- Moreover, because of this variable clay density, tiles which have just been formed are particularly sensitive to impact acting in the plane orthogonal to that in which they lie, for example during their transfer along conveying lines, and they are thus easily subject to breakage.
- In addition, the presence of said studs or feet hinders comfortable and correct transfer along roller conveyors, as takes place for example in single-layer firing kilns.
- Finally, this known tile configuration leads to a relatively small coefficient of grip, in particular in the case of facing tiles.
- The present invention provides and protects a special tile rear configuration able to obviate the aforesaid. This is attained according to the invention by providing a tile rear having a plurality of uniformly distributed hexagonal cells which cover the reverse face of the tile with the exception of a narrow perimetral rim, and which have a depth of between 0.5 and 3 mm.
- In substance, said tile rear is configured as a honeycomb, so as to provide a perfectly plane rear resting face. Furthermore, according to the invention, a tile with this rear has very regular cross-sections, so that a tile which has just been formed is uniformly compacted and thus more resistant to impact, and during its firing there is almost regular shrinkage without appreciable variation in the planarity of the support or in the linearity of its sides, and its front face reacts uniformly to the application of glaze and/or decoration.
- In addition, the planarity of the rear in no way hinders correct transfer of the corresponding tiles by roller conveyors. Finally, the tile rear according to the invention provides a coefficient of grip which has not been obtainable up to the present time.
- The constructional characteristics and merits of the invention will be apparent from the detailed description given hereinafter with reference to the figures of the single accompanying drawing, which illustrates a particular preferred embodiment by way of nonlimiting example.
- Figure 1 is a plan projection of a ceramic tile provided with a rear according to the invention.
- Figure 2 is a partial section on the line II-II of Figure 1.
- Figure 3 shows the encircled detail III of Figure 2 to an enlarged scale.
- Said figures show a ceramic tile 1 of right square or rectangular shape, but which can assume any other known tile shape. The plane rear of this latter, with the exception of a narrow perimetral band 2 which is internally coplanar with said rear whereas externally it extends into a bevel, is provided with a plurality of uniformly distributed
hexagonal impressions 3. - As is clearly shown, these latter are disposed in mutually offset rows and columns, so that said
impressions 3 are distributed in the manner of honeycomb cells. In addition, with particular reference to Figures 2 and 3, it can be seen that the ribs which separate two adjacent impressions are tapered at their summit in order to enable the corresponding forming die to be extracted. - According to the invention, the depth of these
impressions 3 is of the order of 0.5-3 mm, and the average thickness of the separation ribs is between 1 and 2.5 mm. In addition, the side of the hexagon can vary from 3 to 5 mm, and is preferably 4 mm. - The density of these
impressions 3 is therefore between 4 and 1.5 impressions per square centimetre. - The configuration heretofore described enables all the aforesaid objects to be attained.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84200045T ATE28488T1 (en) | 1983-01-28 | 1984-01-13 | CERAMIC PLATE WITH HEXAGONAL CELLS EQUALLY DISTRIBUTED BACK. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4681083 | 1983-01-28 | ||
IT8346810A IT8346810A0 (en) | 1983-01-28 | 1983-01-28 | CERAMIC TILE WITH THE BACK SHAPED WITH EVENLY DISTRIBUTED HEXAGONAL CELLS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0115361A1 true EP0115361A1 (en) | 1984-08-08 |
EP0115361B1 EP0115361B1 (en) | 1987-07-22 |
Family
ID=11259005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84200045A Expired EP0115361B1 (en) | 1983-01-28 | 1984-01-13 | Ceramic tile with its rear configured as uniformly distributed hexagonal cells |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0115361B1 (en) |
AT (1) | ATE28488T1 (en) |
DE (1) | DE3464941D1 (en) |
IT (1) | IT8346810A0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0437809A1 (en) * | 1990-01-15 | 1991-07-24 | Peter Dipl.-Ing. Linser | Process for fabrication of stove tiles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1702912A (en) * | 1926-07-23 | 1929-02-19 | American Encaustic Tiling Comp | Wall and floor tile |
FR1557939A (en) * | 1967-01-20 | 1969-02-21 |
-
1983
- 1983-01-28 IT IT8346810A patent/IT8346810A0/en unknown
-
1984
- 1984-01-13 EP EP84200045A patent/EP0115361B1/en not_active Expired
- 1984-01-13 AT AT84200045T patent/ATE28488T1/en active
- 1984-01-13 DE DE8484200045T patent/DE3464941D1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1702912A (en) * | 1926-07-23 | 1929-02-19 | American Encaustic Tiling Comp | Wall and floor tile |
FR1557939A (en) * | 1967-01-20 | 1969-02-21 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0437809A1 (en) * | 1990-01-15 | 1991-07-24 | Peter Dipl.-Ing. Linser | Process for fabrication of stove tiles |
AT393987B (en) * | 1990-01-15 | 1992-01-10 | Linser Peter | SCREWBURNED PLATE FOR THE PRODUCTION OF OVEN TILES |
Also Published As
Publication number | Publication date |
---|---|
EP0115361B1 (en) | 1987-07-22 |
ATE28488T1 (en) | 1987-08-15 |
DE3464941D1 (en) | 1987-08-27 |
IT8346810A0 (en) | 1983-01-28 |
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