GB2083852A

GB2083852A - Edge rail for tiling

Info

Publication number: GB2083852A
Application number: GB8118432A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-07-26
Filing date: 1981-06-16
Publication date: 1982-03-31
Also published as: FR2487409B3; FR2487409A1; DE8020177U1; ES259065U; GB2083852B; BE889536A; IT8122539A0; DE3123953A1; NL8102848A; IT1137917B; ES259065Y; ATA237481A; CH650579A5; AT377816B

Abstract

An L-sectioned edge rail for defining the edge of a tiled area has an apertured first flange 1 for embedding in the layer of tile adhesive and a second flange 2 for abutting the edge of the tiles. The apertures 11 comprise at least 40% of the area of flange 1 and consist of a row of trapeziums, each being inverted relative to its neighbours. <IMAGE>

Description

SPECIFICATION Edge rail for use in laying-wall and floor coverings The present invention relåtes to an edge rail for use in laying wall and floor coverings, particularly for laying wall and floor tiles made of ceramic material. The edge rail has a thin securing shank which is rectangular in cross-section and has apertures formed therein at regular intervals.

In particular, edge rails having very thin securing shanks are necessary and known for laying ceramic tiles in a thin-bed process wherein layers of glue or mortar are applied in a predetermined, relatively thin layer thickness to the appropriately smooth base. These thin securing shanks must be accommodated in the available layer depth of the adhesive so that no increase in height of the tile structure results from using the edge rails. The apertures in the shank are necessary so that the adhesive or mortar respectively may penetrate from below and so that the tile, which is laid from above, joins the base to an adequate extent.

An edge rail is known wherein a relatively short end shank corresponds substantially to the height of conventional ceramic tiles and is much thicker than the securing shank. Slot-like apertures are provided in this securing shank at regular intervals.

The major part of these edge rails for sealing ceramic tiles is composed of brass material. The costs for the material of such profiles are therefore considerable.

The object of the invention is to reduce the amount of material in the securing shank with such edge rails, whilst nevertheless retaining substantially the required strength, as well as improving the possible penetration of the shank through the adhesive.

According to the present invention there is provided an edge rail for use in laying wall and floor coverings, comprising an end shank and a third securing shank, the end shank being substantially at right angles to the securing shank, said securing shank being rectangular in crosssection and having apertures formed therein at regular intervals, in which the apertures are equalsided-trapezoidal apertures which are each staggered by 1 800 relative to each other and the base sides of which are parallel to the longitudinal edges of the securing shank, the sum of the base areas of the apertures corresponding to at least 40% of the entire base area of the securing shank.

In such a design according to the invention for the securing shank of the edge rail, webs are formed between the apertures and they extend diagonally to each other simiiar to a latticework structure. Compared with known rails of this type, the amount of material required for the securing shank is substantially reduced. During laying in the thin-bed process, the very large apertures enable the adhesive to have a deep penetration and therefore lead to an extremely good adhesive connection between the underside of the laid tiles and the base.

According to a preferred embodiment of the invention, one base side of a trapezoidal aperture is at least double the length of the other base side.

In this case, the width of one web between two apertures should correspond substantially to half the depth of the trapezoidal aperture.

With such a design according to the invention for the apertures, calibrated strength ratios are produced since the webs, which are formed sufficiently widely, are at advantageous angles one relative to the other.

The present invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a partial plan view of an edge rail according to the invention; and Fig. 2 is a section taken along the line I-I of Fig. 1.

The illustrated edge rail, which is preferably made of brass, comprises a thin horizontal securing shank 1 which is rectangular in crosssection and whose thickness is less than 1.5 mm.

The vertical end shank 2 is moulded on so that it lies substantially at right angles to the securing shank 1.

Equal-sided-trapezoidal apertures 11 are provided in the securing shank 1 at regular intervals, and formed between the apertures are the webs 12 which are respectively joined together by sections 13 and 14 like an upper and lower belt.

These apertures 11 are each staggered by 1800 relative to each other, the base sides of the trapeziums each extending parallel to the respective longitudinal edges of the securing shank.

The sum of the base areas of the apertures 11 amounts to at least 40% of the entire base area of the securing shank 1. The longer respective base side of a trapezoidal aperture 11 is at least double the length of the other base side. The width of the webs formed between the apertures corresponds substantially to half the depth of the trapezoidal aperture. The inner corners of the trapezoidal aperture are each rounded.

1. An edge rail for use in laying wall and floor coverings, comprising an end shank and a thin securing shank, the end shank being substantially at right angles to the securing shank, said securing shank being rectangular in cross-section and having apertures formed therein at regular intervals, in which the apertures are equal-sidedtrapezoidal apertures which are each staggered by 1 800 relative to each other and the base sides of which are parallel to the longitudinal edges of the securing shank, the sum of the base areas of the apertures corresponding to at least 40% of the entire base area of the securing shank.

2. An edge rail as claimed in claim 1, in which the inner corners of the trapezoidal apertures are rounded.

3. An edge rail as claimed in claim 1 or 2, in which the longer respective base side of one

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Edge rail for use in laying-wall and floor coverings The present invention relåtes to an edge rail for use in laying wall and floor coverings, particularly for laying wall and floor tiles made of ceramic material. The edge rail has a thin securing shank which is rectangular in cross-section and has apertures formed therein at regular intervals. In particular, edge rails having very thin securing shanks are necessary and known for laying ceramic tiles in a thin-bed process wherein layers of glue or mortar are applied in a predetermined, relatively thin layer thickness to the appropriately smooth base. These thin securing shanks must be accommodated in the available layer depth of the adhesive so that no increase in height of the tile structure results from using the edge rails. The apertures in the shank are necessary so that the adhesive or mortar respectively may penetrate from below and so that the tile, which is laid from above, joins the base to an adequate extent. An edge rail is known wherein a relatively short end shank corresponds substantially to the height of conventional ceramic tiles and is much thicker than the securing shank. Slot-like apertures are provided in this securing shank at regular intervals. The major part of these edge rails for sealing ceramic tiles is composed of brass material. The costs for the material of such profiles are therefore considerable. The object of the invention is to reduce the amount of material in the securing shank with such edge rails, whilst nevertheless retaining substantially the required strength, as well as improving the possible penetration of the shank through the adhesive. According to the present invention there is provided an edge rail for use in laying wall and floor coverings, comprising an end shank and a third securing shank, the end shank being substantially at right angles to the securing shank, said securing shank being rectangular in crosssection and having apertures formed therein at regular intervals, in which the apertures are equalsided-trapezoidal apertures which are each staggered by 1 800 relative to each other and the base sides of which are parallel to the longitudinal edges of the securing shank, the sum of the base areas of the apertures corresponding to at least 40% of the entire base area of the securing shank. In such a design according to the invention for the securing shank of the edge rail, webs are formed between the apertures and they extend diagonally to each other simiiar to a latticework structure. Compared with known rails of this type, the amount of material required for the securing shank is substantially reduced. During laying in the thin-bed process, the very large apertures enable the adhesive to have a deep penetration and therefore lead to an extremely good adhesive connection between the underside of the laid tiles and the base. According to a preferred embodiment of the invention, one base side of a trapezoidal aperture is at least double the length of the other base side. In this case, the width of one web between two apertures should correspond substantially to half the depth of the trapezoidal aperture. With such a design according to the invention for the apertures, calibrated strength ratios are produced since the webs, which are formed sufficiently widely, are at advantageous angles one relative to the other. The present invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a partial plan view of an edge rail according to the invention; and Fig. 2 is a section taken along the line I-I of Fig. 1. The illustrated edge rail, which is preferably made of brass, comprises a thin horizontal securing shank 1 which is rectangular in crosssection and whose thickness is less than 1.5 mm. The vertical end shank 2 is moulded on so that it lies substantially at right angles to the securing shank 1. Equal-sided-trapezoidal apertures 11 are provided in the securing shank 1 at regular intervals, and formed between the apertures are the webs 12 which are respectively joined together by sections 13 and 14 like an upper and lower belt. These apertures 11 are each staggered by 1800 relative to each other, the base sides of the trapeziums each extending parallel to the respective longitudinal edges of the securing shank. The sum of the base areas of the apertures 11 amounts to at least 40% of the entire base area of the securing shank 1. The longer respective base side of a trapezoidal aperture 11 is at least double the length of the other base side. The width of the webs formed between the apertures corresponds substantially to half the depth of the trapezoidal aperture. The inner corners of the trapezoidal aperture are each rounded. CLAIMS

3. An edge rail as claimed in claim 1 or 2, in which the longer respective base side of one trapezoidal aperture is at least double the length of the other base side.

4. An edge rail as claimed in any preceding claim, in which the width of one web between two apertures corresponds substantially to half the depth of the aperture.

5. An edge rail for use in laying wall and floor coverings, substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.