RU177131U1 - FINAL CLAMMER FOR FASTENING FACADE FACING ELEMENTS - Google Patents

Abstract

The utility model relates to the field of industrial and civil construction, namely to the structural elements of the fastening of cladding plates of building facades, including ventilated ones. The technical result achieved in the implementation of the utility model is to compensate for the stresses created by the tile on the supporting surface of the clammer, increase the strength of the facade structure during its operation along with the installed tile.

Description

Technical field

The utility model relates to the field of industrial and civil construction, namely to the structural elements of the fastening of cladding plates of building facades, including ventilated ones.

State of the art

Clamps (fasteners as part of load-bearing ventilated facades designed to tightly fix various cladding materials), fastened with rivets or screws on the guiding elements (substructure or metal lathing), into which facade panels, for example, made of granite, are widely used. To hold the facade panels and their safe operation, various details are used, the most common of which are the clamps attached to the substructure with petals bent at right angles made of the same material as the base of the clamp.

The design flaws of the mentioned clamps include their low flexural strength of the support shelf, which causes distortions of the installed facade plates.

From the patent RU 102645 U1 (E04F13 / 00, published March 10, 2013), a clamp is known for fastening the cladding panels of building facades, including a base for attaching to the cladding surface and a pair of presser feet for interacting with the outer surface of the cladding panel, comprising stiffeners made on the base , one of the sides of the base contains a flange flanged from it, and the presser legs are cut out at the base, are mirrored relative to its horizontal axis, bent at an angle to the surface of the base, image The cantilever platform for installing the facing panel, the continuation of the legs are bent at an angle to the base of the cantilever platform, forming presser legs, relief moldings are made on the bend line. The disadvantages of these clamps include:

- insufficient rigidity of the presser legs at the base, despite the presence of embossed moldings on the bending line, which is a consequence of relaxation of stresses in the curved layer of the product material;

The closest in the aggregate of essential features to the claimed utility model is the clamp used for the fastening of the facade cladding elements, which is a support plate equipped with a means for fixing the cladding element, adopted for the prototype known by patent ЕА 018027 (Е048В 1/38, published April 30, 2013). made in the form of two pairs of elastic petals of an arched shape, protruding above the front surface of the plate, and through holes for fasteners, and having a centrally symmetrical design of the relative but the longitudinal and transverse axes, while the elastic petals are one at a time located in the corner zones of the base plate, the petals being bent in one direction for a pair of petals located along the longitudinal axis, and in the opposite direction for a pair of petals located along the transverse axis, the fixing means contains at least one pair of support protrusions made integral with the support plate and located on its opposite ends oriented along the transverse axis perpendicular to the surface of the supports plate in the area between the pairs of petals, bent in the opposite direction, each supporting protrusion provided with at least one fixing element of the facing element in the direction perpendicular to the surface of the supporting plate, each supporting ledge with the corresponding fixing element of the facing element is formed with the formation of at least at least one supporting shelf of the U-shaped profile, for which the width is selected in accordance with the thickness of the facing element, and the direction relative to the surface of the supports the th plate is selected in accordance with the direction of the petals relative to the surface of the base plate, the through holes for the fasteners are arranged in pairs symmetrically relative to the longitudinal axis of the base plate, at least on the transverse axis of the base plate in the area between the petals bent in the same direction, and in the areas between each pair of petals bent in the opposite direction.

The main disadvantage of the known clamp is its limited use due to the presence in its design of the support protrusions having support flanges of a U-shaped profile, for which the width is selected in accordance with the thickness of the facing element: the concrete clamp has a supporting surface for the facing element in the form of a rib equal to the thickness of the base plate (the thickness of the sheet steel from which it is made). Thus, porcelain tile rests on a rib, which during installation and subsequent operation leads to chipping of brittle material - porcelain tile - along the contact line (stress concentrator), which limits the use of such facade cladding elements on load-bearing ventilated facades with building floors above one.

Utility Model Disclosure

The technical problem of this utility model is the presence of stresses created by the facade cladding element on the supporting surface of the clammer.

The technical result obtained by the implementation of the utility model is to compensate for the stresses created by the tiles on the supporting surface of the clammer, and as a result, increase the strength of the facade structure.

The specified technical result is achieved by the fact that the final clamp for fastening the facade cladding elements, which is a support plate (1) having a centrally symmetrical design relative to the transverse axis (3), is equipped with means for fixing the cladding element made in the form of a pair of elastic petals (2) arcuate shape, protruding above the front surface of the plate, and each means of fixation contains a support protrusion (4), made integral with the support plate (1) in the area between the petals (2), in the opposite direction, while the supporting protrusion (4) is provided with means for fixing the facing element in a direction perpendicular to the surface of the supporting plate, each supporting protrusion (4) is made with the formation of the supporting flange of the U-shaped profile, for which the direction relative to the surface of the supporting plate ( 1) is selected in accordance with the direction of the petals (2) relative to the surface of the base plate (1), and the through holes for the fasteners are arranged in pairs symmetrically with respect to the longitudinal axis a support plate in the area between the petals, bent in the same direction, and characterized in that each fixing means further comprises a support pad (11) made integrally with the U-shaped shelf and bent at an angle of about 90 ° relative to the supporting surface of the shelf, the protrusions (4) are located on opposite sections oriented along the transverse axis (3), inside the support plate (1).

Description of drawings

To clarify the essence of the claimed utility model, the following graphic materials are presented:

- FIG. 1 - blank for the manufacture of the final clammer,

- FIG. 2 is a front view of the final clammer,

- FIG. 3 is a side view of the final clammer,

- FIG. 4 is an isometric view of the final clammer;

- FIG. 5 - installation diagram of the final clammer with facade cladding elements;

- FIG. 6 is a view of the support of the facade cladding elements on the supporting platforms of the clammer

where the positions show: 1 - the base plate of the clamp, 2 - elastic petals of an arched shape (fixation tool), 3 - the transverse axis of the clamp, 4 - support ledge, 5 - holes for fasteners, 6 - edge stiffeners of the base plate, 8 - central stiffener of the base plate, 10 - stiffener of the U-shaped shelf, 11 - supporting platform.

Utility Model Implementation

The work of the claimed klyammera will be discussed in more detail with reference to the figures.

The final clammers are installed, as a rule, on the corners of the facade, near the cornice, around the perimeter of window openings and are the extreme fasteners for porcelain tiles. The process of mounting cladding elements on the facade, in particular, porcelain tiles (Fig. 5, 6), consists in installing the tiles directly on the shelves of the U-shaped profile until they come in contact with the supporting platforms 11. The work is carried out manually by one installer with a uniform perimeter gap between tiles. In this case, the finally installed tile must be supported on four supporting platforms 11 (two on the top and bottom), and in contact on the four supporting projections 4 (two on the upper and lower corners), which limits the possible degrees of freedom of the tile relative to the clammer. However, during the operation of the facade in metal structures, thermal stresses arise during a seasonal change in the ambient temperature, as well as relaxation stresses of the material of the clamps and substructure elements (guides), which causes the relative allowable displacement of the clamps relative to each other and, as a result, additional compression stresses on the tile . As is known, porcelain by its nature is a brittle material, therefore, the compressive effect exerted by the support flanges of the U-shaped profile leads to the appearance of stress concentrators in the tiles and, as a result, to cracks and chips of porcelain. The presence of supporting pads 11, directly in contact with the tiles, due to the increase in the area of support and the possibility of elastically deforming, makes it possible to level the compressive effect exerted by the clamps, thereby preventing premature failure of porcelain tiles.

Thus, the implementation of the clammer described above compensates for the stresses created by the facade cladding element on its supporting surface.

Claims (1)

The final clammer for fastening the facade cladding elements, which is a support plate (1) having a centrally symmetrical structure relative to the transverse axis (3), equipped with fixing means for the cladding element made in the form of a pair of elastic petals (2) of an arched shape protruding above the front surface plate, and each fixation means contains a support protrusion (4), made integral with the support plate (1) in the area between the petals (2), bent in the opposite direction, while the supporting protrusion p (4) is provided with means for fixing the facing element in a direction perpendicular to the surface of the base plate, each supporting protrusion (4) made with the formation of the support flange of the U-shaped profile, for which the direction relative to the surface of the base plate (1) is selected in accordance with the direction of the petals (2) relative to the surface of the base plate (1), and the through holes for the fasteners are arranged in pairs symmetrically relative to the longitudinal axis of the base plate in the area between the petals bent one direction, characterized in that each fixing means further comprises a support platform (11), made integral with the shelf of the U-shaped profile and bent at an angle of about 90 ° relative to the support surface of the shelf, and the support protrusions (4) are located on opposite, oriented along transverse axis (3) sections inside the base plate (1).

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