CZ2010573A3 - Building section with adjustable angle of arms - Google Patents

Abstract

The adjustable boom angle profile, intended for application in particular as a sub-profile, is formed by a pair of rigid plastic arms (2), in particular non-foamed polyvinyl chloride, which are joined together by a coextruded semi-rigid plastic strip (1). The semi-rigid plastic of the co-extruded strip (1) is a plastic having a hardness of 49 to 60 Sh D and an ultimate tensile strength of at least 19 MPa, in particular softened polyvinyl chloride.

Description

Construction profile with adjustable arm angle

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a building profile with an adjustable boom angle, to be applied in particular as a sill profile.

BACKGROUND OF THE INVENTION

Currently, so-called under-sill building profiles consisting of a pair of rigid plastic arms are used for the installation of window sills, which are connected so that they form an angle of approximately 90 ° with each other. However, in order to properly drain water from the window sill, it is necessary that the window sill be installed at least with a minimum inclination away from the window. The weakness of the existing profiles is thus the mismatch of the profile arm angle (90 °) with the angle between the window sill and the facade of the building. Due to the rigidity of the material and the firm connection of their legs, the possibility of adapting the current profiles without damage is minimal. The profile whose shoulder angle varies according to the angle between the sill plate and the façade (especially in reconstructions where the slope is often different) is not yet known.

From other applications, for example, the sealing profile of an expansion joint between two building elements is known according to the Czech patent & 292,147. This sealing profile consists of two anchoring units and an ické elastic bridging unit, wherein the anchoring units are arranged on opposite sides of the expansion joint and connected to the building elements. Each anchoring unit is provided with a longitudinal limb projecting approximately perpendicularly from the building body, and the bridging unit has a longitudinal groove at each of its longitudinal edges open towards the building bodies. The anchoring units are connected to the bridging unit by means of longitudinal arms engaging in the longitudinal grooves, and each anchoring unit is provided on its side of the longitudinal arm facing away from the expansion joint with one clamping arm extending approximately perpendicular to the building body. The bridging unit is arranged around the clamping arms in a tvaru shape and is arranged to be connected thereto by means of a spring steel clamping bar, also having a tvar shape. Although the described sealing profile has the possibility to change the angle of the anchoring units (arms), due to its constructional design, its use as a sill profile is not possible at all.

The same is true of the expansion joint bridging device according to the European patent X ''

EP 13’59Č254. This device has dilatation joints which can be disengaged through bolted joints with anchoring profiles arranged in opposite end sections and with a mirror-engaging jaw arrangement between them and with an anchor leg of the anchoring profile for fastening screws and with positioning means fixed against movement on the underside. on the base arm for gripping securely against the rotation of the fastening means. In the positioning means formed by the guiding arrangement of the fastening means, the hexagon nut is preferably mounted with respect to the base arm and side penetration and according to the height.

SUMMARY OF THE INVENTION

In order to overcome the aforementioned drawbacks of the known building profiles, the adjustable angle profile of the arm of the invention contributes, in particular, to the application as a sill profile. This profile, like the known profiles, has a pair of rigid plastic arms, especially unplasticized polyvinyl chloride. The principle of the invention is that these arms are connected to each other by a coextruded strip of plastic.

The semi-rigid plastic of the joint co-extruded tape is preferably a plastic having a hardness of 49 to 60 ShD and an ultimate tensile strength of at least 19 MPa, in particular plasticized polyvinyl chloride.

Preferably, the co-extruded tie band has a rectangular cross section with a side size in the range of 0.7 to 1.5 mm.

Advantageously, a strip of expanded plastic, in particular polyolefin, provided with an adhesive layer for adhering to the lower part of the window sill may be attached (glued) to the surface of one of the legs of the profile, and a fiberglass leno fabric may be attached to the other of the legs.

The main benefit of the structural design of the building profile according to the invention is the fact that the angle of its arms adapts without difficulty to the angle between the sill plate and the facade (wall), which is advantageous especially in reconstructions where the slope is often different.

At the same time, the bonding tape of the rigid plastic dampens window vibrations (rain, hail, etc.) and mechanical stress transmitted from the window sill to the plaster. This tape also contributes to compensating for the stresses caused by the different thermal dilatations of the sill material used and the plaster material.

Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a building profile with an adjustable arm angle according to the invention, and other elements of the built-in window sill are schematically indicated.

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DETAILED DESCRIPTION OF THE INVENTION

The construction profile with adjustable arm angle in the exemplary embodiment (see Fig. 1) consists of a pair of arms 2 made of rigid unplasticized polyvinyl chloride. These arms 2 are connected to each other by a coextruded strip 1 of softened polyvinyl chloride having a hardness of 52 ShD and a tensile strength at break of at least 19 MPa. The coextruded connecting strip has a rectangular cross-section with a side size of 1.2 mm.

On the surface of one of the legs 2 a strip 3 of expanded polyethylene is glued, which supports a sill plate provided with an adhesive layer for gluing to the lower part of the sill.

Connected to the other arm 2 is a fiberglass leno fabric 4, embedded in the plaster 7 on the surface of the insulation 5 of the window wall 8.

1 also shows a possible adjustment of the angle of the arms 2y between 90 and 130 °.

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Claims (4)

PATENT CLAIMS An adjustable profile angle of arms, intended to be applied in particular as a under-sill profile, consisting of a pair of rigid plastic arms, in particular of unplasticized polyvinyl chloride, characterized in that the arms (2) are connected to each other by a coextruded strip (1) Building profile according to claim 1, characterized in that the semi-rigid plastic of the jointing coextruded tape is a plastic having a hardness of 49 to 60 ShD and an ultimate tensile strength of at least 19 MPa. The building profile according to claims 1 and 2, characterized in that the semi-rigid plastic of the joint co-extruded strip is a softened polyvinyl chloride. A building profile according to claim 1, characterized in that the coextruded joint strip has a rectangular cross-section with a side size in the range of 0.7 to 1.5 mm. Building profile according to claim 1, characterized in that a strip (3) of expanded plastic, in particular a polyolefin, provided with an adhesive layer is attached to the surface of one of the profile legs (2) and a fiberglass leno fabric (4) is attached to the other of the legs. .