RU2688657C1 - Device for fixation of facing element in interface of two surfaces - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to construction, namely, to fasteners of facing elements (14) in place of transition between two surfaces (3), (12) (for example, floor and wall), and can be used for concealed fastening of skirtboard, decorative profiles, facing planks and other similar elements having fastening slots. Device is made in the form of angular profile from sheet metal material. Profile comprises base (2); wall (1) provided with at least one fastening hole (5); and upper fastening protrusion (8) for placement in upper attachment slot (11) of facing element (4). Ledge is formed by bending of upper end of wall (1) and includes part protruding inward from wall (9), which changes into upper arch-shaped lug (10). Tab runs in direction from base (2). Device also comprises lower fastening protrusion (13) for arrangement of facing element (4) in lower mounting slot (14). Projection includes at least one lower tab (15). Tab is formed by bend of base end along curve of line in direction of wall (1). End part (16) of lower tab is bent in reverse direction. Ratio of height (H1) of lower tab (15) to height (H2) of upper tab (10) is from 1.5 to 3.EFFECT: increased rigidity of facing of large-width facing element and reliability of its retention, simplified assembly.6 cl, 6 dwg

Description

Technical field

The invention relates to the field of construction, namely, devices for fastening cladding elements at the junction between two surfaces (for example, a floor and a wall) and can be used for concealed mounting of a plinth, decorative profiles, cladding plates and other similar elements having fastening grooves.

The level of technology

Known devices for fastening facing elements (see RF patent for useful model RU175224, 11.28.2017, US patent US7594368, 09.29.2009, international application publication WO2015002564, 01.01.2015), made in the form of an angular profile of sheet metal and containing a wall, the basis and the lower fixing ledge for placement in a fixing groove of a plinth. The specified mounting protrusion contains one or more tongues formed by the bend of the end of the base along a curved line in the direction of the wall. The end portion of the lower tongue is bent in the opposite direction.

The disadvantage of such devices is the low rigidity of the fastening cladding large width (height), in particular 80 mm or more.

The closest analogue of the invention in terms of the aggregate of structural elements is the fastening device for the cladding elements, disclosed in the Swiss application CH694891, August 31, 2005. The device is made in the form of an angular profile of sheet metal. The profile has a wall and a base placed at right angles. In the wall made mounting hole. The device also has an upper fastening protrusion for placement in the upper fastening groove of the facing element formed by bending the upper end of the wall and including the portion protruding inward from the wall, which passes into the upper образ-shaped (arcuate) tongue, which extends from the base. In addition, the device also has a lower protrusion designed for laying cables in it, the lower protrusion formed by bending the end of the base along a curved line in the direction of the wall.

The disadvantage of this analogue is also a relatively low rigidity of the mounting when mounting the lining of large width. This is due to the fact that the lower protrusion does not ensure the retention of the facing element, which is attached only to the upper fastening protrusion.

Disclosure of the invention

The objective of the claimed invention is to eliminate the disadvantages of analogs and the development of the mounting device for the facing elements of wide width.

The technical result of the invention is to increase the rigidity of the fastening cladding element of a large width (or height), the reliability of its retention and simplify its installation.

This technical result is achieved due to the fact that the fastening device of the cladding element in the junction of two surfaces is made in the form of an angular profile of sheet metal material containing a base, a wall provided with at least one mounting hole and an upper mounting tab for placement in the upper mounting groove facing element formed by the bend of the upper end of the wall. The upper mounting protrusion includes a portion protruding inward from the wall, which passes into the upper arcuate tongue, which extends from the base. The device also includes a lower mounting tab for placement in the lower mounting groove of the cladding element. The specified protrusion includes at least one lower tongue formed by bending the end of the base along a curved line in the direction of the wall. The end of the lower tongue is bent in the opposite direction. The ratio of the height of the lower tongue to the height of the upper tongue is from 1.5 to 3.

In addition, according to particular embodiments of the invention:

- the ratio of the distance between the wall and the upper tongue to the width of the upper tongue is from 2 to 3,

- the angle between the plane of the lower tongue and the plane of the base is 45-65 °,

- flanging is performed in the area of the mounting hole of the wall,

- the wall has a stiffener.

- in the central part of the lower fastening protrusion there is a notch that forms an additional tongue, bent to the plane of the base.

In contrast to the closest analogue, the device in question is provided with a lower fastening protrusion of a special configuration, which presses the lower part of the lining due to the elastic properties of the sheet material. The specified lower mounting lug only in combination with the upper mounting lug ensure the rigidity of the entire fastening system of the cladding element while maintaining the simplicity of its installation.

Brief Description of the Drawings

The design of the claimed adapter is illustrated by drawings, where:

in fig. 1 shows a volumetric view of the device from the front,

in fig. 2 shows a surround view of the device from the rear side,

in fig. 3 shows a side view of the device,

in fig. 4 shows the front view of the device.

in fig. 5 shows variants of the design of the upper mounting lug;

in fig. 6 shows the installation of the cladding element using the device;

The structural elements and their parameters are indicated on the figures with the following positions:

1 - wall

2 - base

3 - vertical surface (wall),

4 - facing element (plinth),

5 - mounting hole

6 - fastener,

7 - flanging,

8 - upper mounting lug,

9 - protruding inside part,

10 - upper образ-shaped tongue,

11 - upper mounting groove,

12 - horizontal surface (floor),

13 - lower mounting lug,

14 - lower mounting groove,

15 - lower tongue

16 - the end part of the tongue,

17 - additional tongue

18 - stiffener

H1 - the height of the lower tongue,

H2 - the height of the upper tongue

B - the width of the upper tongue,

S is the distance from the wall to the upper tongue,

α - the angle of the limb of the lower tongue relative to the base.

The implementation of the invention

The claimed fastening device (Fig. 1, 2) is made in the form of an angular profile made of sheet metal material, in particular spring steel.

The specified profile includes placed at an angle (preferably at a right angle) wall (1) and the base (2). Wall (1) is intended for fastening the claimed device to a vertical surface (3), in particular to a wall, when installing the facing element (4) (see FIG. 6). For this purpose, one or more fastening holes (5) are provided in the wall (1) to accommodate fasteners (6), for example, self-tapping screws. To increase the rigidity and reliability of mounting the device around the hole (5), flanging (7) can be made in the form of a bulge directed inside the part (see Fig. 1.2). In addition, to increase the rigidity of the wall, it may optionally have a stiffener (18) in the form of an elongated bulge directed inside the part. (Fig. 1, 2).

In the upper part of the device, there is an upper fixing protrusion (8) formed by bending the end of the wall (1) and designed to hold the facing element (4). The upper fastening protrusion (8) consists of a portion (9) protruding in (sideways relative to the part) and an upper образ-shaped (arcuate) tongue (10), which is a continuation of part (9) and extending from the base (up). The inwardly protruding part (9) is preferably oriented perpendicular to the wall, and the upper tongue (10) is parallel to it.

 The upper tongue (10) is designed to be placed in the upper mounting groove (11), which is a continuation of the cavity made in the cladding element (4). The upper tongue (10) may extend from part (9) in the direction from the wall (see Fig. 5a) or in the direction to the wall with the formation of an open loop (see Fig. 5b). The tongue width (10) preferably coincides with the width of the groove (11).

In a preferred embodiment of the invention, the distance (S) between the wall (1) and the upper tongue (10), as well as the width (B) of the upper tongue (10) must satisfy the ratio S / B = 2 - 3. This is due to the optimal rigidity of the upper fastening protrusion to hold the facing element (4). When the ratio is less than 2, the upper tongue (10) may begin to bend when installing the cladding element, without ensuring its support in the vertical plane. When the ratio is more than 3, the rigidity in the horizontal direction can significantly decrease.

The base (2) of the fastener is intended to contact with a horizontal surface (12), in particular with the floor. The base (2) is preferably flat.

In the lower part of the device, there is also a lower fastening protrusion (13) for holding the facing element (4) by placing it in the lower fastening slot (14) (see Fig. 5).

The bottom mounting protrusion (13) contains one or more lower tongues (15) formed by bending the end of the base along a curved line in the direction of the wall (2). The specified tongue (15) has an end part (16), which is bent in the opposite direction, which is necessary to increase the rigidity of the protrusion and ease of installation of the cladding element.

The angle (α) between the plane of the lower tongue (15) and the plane of the base (2) (the angle of the bend of the tongue) is preferably 45-65 °. This is due to the presence of the facing element (4) of the fastening groove (14), which houses the tongue. If the angle is less than 45 °, it is necessary to significantly increase the width of the specified groove (14), which is not always possible, or to reduce the length of the tongue (15), which will lead to a decrease in spring properties when installing the lining. If the angle is more than 65 °, the tongue (15) will not exert enough pressure on the cladding element (4) to hold it securely.

The height (H1) of the lower tongue (15) and the height (length) (H2) of the upper tongue (10) must satisfy the condition: H1 / H2 = 1.5-3. This is due to the difference in the configuration of the arcuate upper tongue (10), designed to support the upper part of the cladding element, and the curvilinear lower tongue (15), which presses the lower part of the cladding element against the wall (3). If this ratio is less than 1.5 (the upper tongue (10) will be slightly less, equal to or greater than the lower tongue (14)), the stiffness of the upper part of the joint will be significantly less than at the lower part, which can lead to the formation of a gap between the upper part cladding and wall, especially if the lining will have a considerable width (height). As a result, this will lead to a decrease in the overall rigidity of the structure. On the other hand, when the ratio of the parameters is more than 3, the reverse situation may occur, when the lower part of the joint will be much more rigid than the upper one, and the lower tongue will not be able to provide sufficient force to press the lining of a large width. As a result, the overall stiffness of the structure will also be reduced.

In the central part of the lower fixing protrusion (13), a cutout can be made, forming an additional tongue (17) bent away from the wall (1) in the plane of the base (2). The specified tongue (17) serves as an additional support element for the base and may have a different shape. In particular, said tongue (17) may provide for separation of the lower fastening protrusion to form two lower tongues (15).

The device can be obtained by means of sheet metal processing technology known to a person skilled in the art. In particular, cutting of a steel tape, the subsequent cutting of a tape on preparations and their bending can be applied.

The mounting device can be used to install various cladding elements (4) at the junction of two surfaces, for example, the vertical surface (3) of the wall and the horizontal surface (12) of the floor (see Fig. 6). To do this, the mounting device is installed on the floor in the place of its interface with the wall. The wall (2) is attached to the horizontal surface (3) of the wall through the holes (5) by means of fasteners (6). Next, the facing element (4) is installed vertically, winding the upper mounting ledge through the cavity with the upper mounting groove (11) and placing the upper (10) and lower (15) tongues in the upper (11) and lower (14) mounting slots, respectively. When this occurs, the upper part of the lining is fixed by the upper tongue (10), as well as the elastic deformation of the lower tongue (15) in the direction from the wall (2), which creates a force of the element in the reverse direction and ensures reliable retention of the lining element (4).

Despite the fact that the operation of the device is demonstrated by the example of fastening the cladding element at the junction of perpendicular floor and ceiling surfaces, it can also be used to install cladding elements on other types of surfaces, the angle between which can be different from 90 °.

Claims (11)

1. A fastening device for the cladding element (4) at the junction of two surfaces (3), (12), made in the form of an angular profile made of sheet metal material containing base (2); a wall (1) provided with at least one mounting hole (5); and the upper mounting protrusion (8) for placing in the upper mounting groove (11) of the facing element (4) formed by bending the upper end of the wall (1) and including part (9) protruding inward from the wall, which passes into the upper arcuate tongue (10), which extends from the base (2), characterized in that it further comprises a lower mounting protrusion (13) for placing in the lower mounting groove (14) of the facing element (4) comprising at least one lower tongue (15) formed by bending the end of the base along a curved line in the direction of the wall (1 ), with the end part (16) of the lower tongue bent in the opposite direction, the ratio of the height (H1) of the lower tongue (15) to the height (H2) of the upper tongue (10) is from 1.5 to 3. 2. The device according to claim 1, characterized in that the ratio of the distance (S) between the wall (1) and the upper tongue (10) to the width (B) of the upper tongue (10) is from 2 to 3. 3. The device according to claim 1, characterized in that the angle (α) between the plane of the lower tongue (15) and the plane of the base (2) is 45-65 °. 4. The device according to claim 1, characterized in that in the zone of the mounting hole of the wall (1) flanging is performed. 5. The device according to claim 1, characterized in that the wall (1) has a stiffener (18). 6. The device according to claim 1, characterized in that in the central part of the lower mounting protrusion (13) a notch is made, which forms at least one additional tongue (17) bent to the plane of the base.

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