RU2452829C2 - Metal tiles - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: on a sinusoidal shaped sheet there are transverse stiffening folds arranged at the angle to the short side of the shaped sheet to form relief maps in the form of parallelograms.

EFFECT: improved sealing of sheets along the inclined coupling line, with preservation of water-draining properties of covers at minimum angles of water-draining surface inclination.

2 cl, 8 dwg

Description

Refers to the field of metal products by pressure, namely, roofing from sheet steel.

Known profiled sheet according to patent RU 2220803 from 10.01.2004, ed. Kurchakov N.M.

The profiled sheet in cross section is a trapezoidal profile, along the length of the sheet there are sinusoidal watershed and chute platforms.

Disadvantages: in the tray where the pairing with the adjacent sheet occurs, during operation of the coating in the rain, a stream of water in each period of the sinusoid hits the pairing point, overfills the tray and penetrates under the top pairing sheet.

The well-known "Tile" SU 1815316 from 05/15/93, bull. Number 18.

The tile consists of a square or rhombic plate and five wedge-shaped ribs.

Disadvantages: high complexity during installation.

Known profiled sheet with longitudinal and transverse corrugations, see the book Trishevsky I.S. “Cold-rolled profiles”, p. 68, Kiev, 1967.

Disadvantages: only the goal of structural rigidity is pursued.

Prototype: last rental mentioned.

A device for the manufacture of rolled products contains a multi-stand rolling mill with forming rolls, a press, for transverse pressing.

Disadvantages: the number of longitudinal rolls for the formation of watersheds and trays, their height, as well as the pitch and height of the transverse shear is prescribed only from the conditions of giving longitudinal and transverse stiffness, as well as the external perception of the resulting shape, without taking into account the diversity of the possibility of obtaining various shapes.

The technical task of this metal: creating forms of tile coatings, taking into account the economy of the sheet and stiffness in the longitudinal and transverse directions, for better compaction of sheets along an inclined line of coupling, while maintaining the drainage properties of the coatings with minimal tilt angles of the drainage surface according to patent No. 2378071 of 01/09/08.

The technical problem is solved by forming on a sinusoidal, or with another shape of the profiled sheet, transverse stiffness with different pressing angles of the folds, and the pressing is performed using a press with a punch and a matrix with a vertical-horizontal or oblique-horizontal line connecting the matrix and the punch with the vertical movement of the punch, the working surfaces of which interact with each other, when the punch moves at an angle to the plane of the sheet (Fig. 1, 2, 3, 5, 6, 7). In the general case, 88 ° <α <135 °, where α is the fold angle of the transverse bend. To ensure the correct installation of the tile sheets on the plane prepared by the crate, the transverse pressing line should deviate from the parallel line to the short side of the profiled sheet by an angle β = arcsin (t / b), where t is the thickness of the sheet; b - the width of the profiled sheet on the short side (Fig.4, 8). Point A of the sheet to be overlapped in the vicinity of point A1 of the sheet to be coated.

The folds during transverse profiling have a different design: the folds from figures 1, 3, made by presses from figures 5, 7, have the form of a delta (waterfall); the folds of figure 2, made by the presses of figure 6, have the shape of a rapid current (see the book AMLatyshenkov, "Fundamentals of Hydraulics", Gidrometizdat, Ld, 1971, p. 201,202, Fig. 10.4, a - differential, p. 207, 208, Fig. 10.7, b - rapid flow.

The figures proposed in the graphic materials display: 1 - the traditional shape of the fold during transverse pressing; 2 - fold shape, which allows saving the area of the profiled sheet while maintaining the strength and aesthetic characteristics of the product; 3 - the shape of the folds, which allows to improve the quality of pairing of profiled sheets on a common drain pan; 5 - a form of a press of traditional pressing; 6 - shape of the press to obtain the folds in figure 2; 7 - the shape of the press to obtain the folds in figure 3; 4 - placement of the transverse folding folds on a rectangular profiled sheet to provide a conditionally parallel line of folds of several profiled sheets when mounted on a roof slope; on Fig shows a top view of the sheet of metal, profile and view in section aa.

In connection with these conditions, in relation to the simplest form of metal, as a result of processing a steel sheet by pressure, relief maps are obtained on the surface of the profiled sheet in the form of parallelograms with angles along the vertices in the plane: β ₁ = 90 ° -arcsin (t / b) and β ₂ = 90 ° + arcsin (t / b), where t is the sheet thickness, b is the sheet width, angles β ₁ and β ₂ are the angles of bump maps at the vertices of parallelograms;

The various kinds of metal tiles that are offered in this description are additionally diverse by a fold of transverse pressing with an angle of 88 ° <α <135 °.

This is achieved by the traditional vertical bend at 90 ° or bend at an angle of 88 ° and an angle of up to α = 135 °, where α is one of the adjacent angles between the sheet plane and the step plane, taking into account the conservation of the drainage properties of the coatings at the minimum angles of the drainage surface according to the patent No. 2378071 from 01/09/08.

In the particular case, at an angle α = 88 °, the metal tile has good engagement, during installation, along the mating line of the coated sheet with the covering sheet; and at an angle of up to α = 135 ° it becomes possible to manufacture an economical metal tile due to the lower consumption of metal in the crease.

The whole variety of forms of metal tiles published in advertising domestic and foreign booklets are derivative combinations of simple tiles: sinusoidal, trapezoidal, cyclic with a straight section.

When installing the roofing, the top of the sheet is the edge of the sheet that is higher than the other edge of the sheet, and it provides the slope of the roof needed for rainfall drainage.

Claims (2)

1. A metal tile made in the form of a sinusoidal profiled sheet with transverse stiffness folds, characterized in that the transverse stiffness folds are located at an angle to the short side of the profiled sheet with the formation of relief cards in the form of parallelograms with angles at the vertices β ₁ = 90 ° -arcsin (t / b) and β ₂ = 90 ° + arcsin (t / b), where t is the thickness of the sheet, b is the width of the sheet. 2. The metal tile according to claim 1, characterized in that the transverse folds of rigidity have a bend angle α from 88 ° to 135 °.

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