RU1768728C - Corrugated sheet - Google Patents

Abstract

Use in the construction and equipment of buildings, civil structures, as well as ships and aircraft. The folded sheet in the form of a zigzag corrugation has a shape convenient for connecting the sheets together and for attaching the sheets to a flat base. The folded sheet contains flat corners at the corners, and along the perimeter there are tips in the form of a triangular corrugation, the ridges of which are perpendicular to the sides and lie in two parallel planes defining the sawtooth folds. The corrugation located on the transverse sides of the sheet is formed by rectangular plates, and the corrugation lying on the longitudinal sides is joined to the sawtooth folds by means of triangular plates of a given shape. 3 ill.

Description

The invention relates to folded structures and can be used in the construction and equipment of buildings, civil structures, as well as ships and aircraft.

A folded sheet is known which is part of a building panel, consisting of zigzag ribbon rows containing rectangular plates and combined with them on the sides of zigzag rows containing quadrangular plates.

A disadvantage of a folded sheet of this shape is the difficulty in combining it with other sheets.

A honeycomb sheet is known consisting of truncated pyramidal elements arranged in a checkerboard pattern, oriented with smaller bases in one direction.

A disadvantage of a honeycomb sheet of this shape is the difficulty of combining it with other sheets.

Closest to the invention is a folded sheet made of a flat billet and comprising zigzag ribbon rows from parallelogram-shaped plates joined along the edges at an angle to one another to form sawtooth folds bounded at the top and bottom by zigzag ribs, as well as endings in the form of a triangular corrugation along the longitudinal sides.

A disadvantage of a folded sheet of this shape is the difficulty of connecting it to other sheets on the transverse sides, and the difficulty of attaching it to a flat base.

The aim of the invention is to simplify the folding of folded sheets along

xj

Yu

0o

meter and the convenience of attaching them to a flat base.

This goal is achieved in that the folded sheet contains flat corners at the corners, and along the perimeter there are tips in the form of a triangular corrugation, the ridges of which are perpendicular to the sides and lie in two parallel planes that limit the sawtooth folds, while the corrugation located on the transverse sides of the sheet formed by rectangular plates, and the corrugation lying along the longitudinal sides is mated with sawtooth folds by means of triangular plates, their two sides being equal to the sides of parallelogram plates and connected s at a smaller angle parallelogram plates and the pitch of zigzag ribs ratio.

x + dcosa)

arccos 2 arccos

IV (X + dcosof + crsirra d cos a

0)

where d is the length of the segment connecting the vertices of the zigzag ribs;

2 a is the angle at the vertices of the zigzag ribs on the scan of the folded sheet:

x is the distance between the zigzag ribs;

2s - step of zigzag ribs.

In FIG. 1 shows a general view of a folded sheet; in FIG. 2 - scan folded sheet; in FIG. 3 is a plan view of connecting folded sheets overlapping along the longitudinal and transverse edges, top view.

In FIG. 1 shows a folded sheet of a zigzag crimp type, including zigzag ribbon rows from parallelogram-shaped plates 1, joined along the edges at an angle to one another to form sawtooth folds. The folded sheet has zigzag ribs. Ledges 2, zigzag ribs of the troughs 3 and sawtooth ribs 4 connecting the tops of the zigzag ribs of the protrusions 2 and troughs 3. There are ends in the form of a triangular corrugation with ridges 5, 6, 7 and 8 are perpendicular to the sides and lie in two parallel planes bounding the sawtooth folds (ridges 5 and 7 lie in the plane of the zigzag ribs of the protrusions 2, and ridges b and 8 lie in the plane of the zigzag ribs of the troughs 3). In this case, the corrugation located on the transverse sides 9 of the folded sheet is formed by rectangular plates 10, and the corrugation lying on the longitudinal sides 11 of the folded sheet is formed by trapezoidal plates 12 and mated with sawtooth folds by means of triangular plates 13, in which one of the sides 14 lies in the plane of the folded sheet, and the other side 15 lies in the plane of the sawtooth rib 4. At the corners of the folded sheet there are rectangular elements 16 lying in the plane of the zigzag ribs of the depressions 3 and serving for stronger and a sheet

0 flat base.

In FIG. 2 shows a scan of a folded sheet. In this case, the solid lines show the zigzag lines of the ribs of the protrusions 2 and ridges 5, 7 of the endings in the form

5 triangular corrugations lying in the plane of the zigzag lines of the ridges of the protrusions 2. Dotted lines show the zigzag lines of the ribs of the troughs 3 and ridges 6, 8 of the endings in the form of a triangle of the corrugation, lying in the plane of the zigzag lines of the ridges of the troughs 3. Dashed-dotted - sawtooth lines of the ribs 4 and large sides of triangular plates.

Forged pleated sheet in

5 in the form of a zigzag corrugation provides the convenience of connecting sheets transverse 9 and longitudinal 11 sides with adjacent sheets overlapping (see Fig. 3) due to the presence of endings in the form of a triangular corrugation

0 with ridges 5, 6, 7, and 8 located perpendicular to the sides and lying in two parallel planes defining the sawtooth folds. The triangular shape of the tips allows you to compensate for the inaccuracies in the manufacture of the sheet along the length and width due to the mutual displacement of adjacent sheets. The presence of flat areas 16 at the corners of the folded sheet (in Fig. 3 they are shaded) provides convenience

Claims (1)

0 fixing it to a flat base (walls, ceiling, roofing, etc.). . The claims A folded sheet made of a flat billet and comprising zigzag-shaped 5 different tape rows of parallelogram-shaped plates joined along the edges at an angle to one another with the formation of sawtooth folds bounded at the top and bottom by zigzag ribs, 0 and also ends in the form of a triangular corrugation along the longitudinal sides, characterized in that, in order to simplify the connection of the sheets along the perimeter and the convenience of its fastening to a flat base, the sheet 5 contains flat corners at the corners, and along the perimeter there are tips in the form of a triangular corrugation, the ridges of which are perpendicular to the sides and lie in two parallel planes that limit the sawtooth folds, while the corrugation located along the transverse sides of the sheet is formed by rectangular plates, and the corrugation lying along the longitudinal sides is mated with sawtooth folds by means of triangular plates, their two sides being equal to the sides of the parallelogram plates and associated with a smaller angle of the parallelogram plates and the pitch of the zigzag ribs by the ratio x + dcosa v (x + dcosa) 2 + d 2Sin2CЈ - S2J  2 afccos D d cos a) where d is the length of the segment connecting the vertices of the zigzag ribs; 2 a is the angle at the vertices of the zigzag ribs on the scan of the folded sheet, x is the distance between the zigzag ribs; 2s is the step of the zigzag lines of the ribs. Thebes 1 10 -15 13 14 L FIG. 2 Q 12 7