DE8113867U1 - COMPOSITE COMPONENT FROM A CARRIER AND A PLASTIC COVER - Google Patents

Abstract

1. Composite component consisting of a support lattice (3) of metal wires or rods and a plastics covering (1) which is fixedly connected to the support lattice at the points of intersection thereof via connecting clips (10), characterised in that the support lattice is fixedly connected on each side to a plastics covering (1, 2, 5, 5') and in that the composite component is made up of a series of individual elements arranged one behind the other and smaller than the composite component itself, the points of contact between the individual elements in the overall surface of the composite component being offset relative to one another.

Description

Composite component made up of a support grid and a
Plastic cover

The invention relates to composite components made of a |

Metal wire mesh and a plastic cover, {

-the ones at the crossing points of the metal wire mesh | _;

rigidly connected to this via connecting clamps |

is. Composite components of this type are from DE-PS f

_ .22-47 358 known. They get their static Stiff Ig;

because they are barrel-shaped and \

the plate-shaped plastic cover at a distance of
the metal wire mesh is arranged. When loading;

load of the known composite components occur rotary;

moments at the junctions between the intersections;,

points of the metal wire mesh and the plastic cover i

cover. These moments are bigger, the bigger
the distance between the metal wire mesh and the
Plastic cover is. To avoid breaking the plastic cover at the connection points, you must

the connection points as torque-free as possible on the

Crossing points of the metal wire mesh are attached,
what especially if with the composite components
larger areas are to be covered, leads to a complex design of the connecting clamps.

The invention is based on the object of improving the rigidity of the known composite components to improve without torques at the connection points between the metal wire mesh and the plastic cover occur or costly connection clamps are required to absorb such torques. The object is achieved by composite components according to the claims.

,. · Embodiments of the invention are shown in the figures 1 to 3 shown.

FIG. 1 shows a section of a cross section by a barrel-shaped arched composite component according to the invention.

Figure 2 shows a cross section through a Another component according to the invention with planar and

mutually inclined outer surfaces. 20th

FIG. 3 shows an expedient design of a connecting clip in a sectional view.

j The new composite components are based on the |

^ 5 lattice girders, but with a flat design. Two plastic covers (1) and (2) form the upper and lower chords of the lattice structure. The one made of metal wires Support grid (3) formed or rods takes on the function of the supporting web between the upper and

™ lower chord. In the case of low loads or high personal

it

3 -

stiffness of the support grid, this can be made flat, such as a conventional reinforcement mesh. If a higher static rigidity is required, a three-dimensional latticework is used. In this, the metal wires or rods are periodically bent approximately perpendicular to the plane of the plastic covers and rigidly connected to the respective adjacent plastic cover at the vertices (4). As a rule, the grid consists of metal rods running at right angles to one another. In order to achieve the required rigidity, it may be sufficient to bend the metal rods periodically in one of the lattice directions in the sense described. Preferably, the metal bars are bent in two Gitterrich- f Tuengen in this manner. Through the periodic

^ 5 bend is the distance between the upper and lower chords of the lattice structure is enlarged, thereby increasing its static rigidity. To torques applied to the plastic covers act, largely exclude, - the plastic covers are as close as possible to the metal

• rods or attached to the vertices of the metal rods. Fig. 3 shows a detailed solution in which this connection with a small distance between the plastic cover and the metal bar grid is realized.

Preferably, adjacent metal rods running in the same direction are each curved in opposite directions, so that their vertices each by half a period length P are offset from one another. The metal rods are preferably opposed in this way in both grid directions.

^ O curved and closed at the respective vertices

Crossing points connected to each other. With this design, each metal rod is followed by an elevated one and a deep crossing point.

; at the. The metal rods can be at the crossing points

be welded. A connection clamp (10), which is used at the same time to connect to the Plastic cover is used.

Preferably, the metal rods are approximately in the form of a

ii 10 _Λ curved sine curve, as shown in Fig. 1. You can

ί but also zigzag, trapezoidal or rectangular with

small radii of curvature bent at the vertices; see Fig. 2.

15. In the case of a composite component according to the invention from '; uniform overall thickness is the bending of the metal

\, would be equal and preferable in every period

; each period P long. This design method is suitable

. for large flat or barrel-shaped arched composite structures

share. A slight incline of the plastic covers can be used for cantilevered, flat or curved roof surfaces (5) and (5 ') are mutually more advantageous. In this case, the lengths of each Bending periods {P. ,, P ^, P3 ···) of the metal rods with

^ _y 25 with decreasing total thickness also become smaller, as shown in FIG. 2.

• The new composite components not only have increased static rigidity, they also provide Presence of two spaced apart plastic

same

• P · f f f

covers at the same time an increased heat and sound |

insulation. They are therefore suitable for the establishment of self- Jj.

load-bearing, large-scale structures or parts thereof, such as |

Light walls, soundproof walls, light roofs, greenery |

houses, noise protection tunnels for roads and railways, ί

Factory halls, etc. When erecting large-area components of this type, both the plastic covers

as well as the metal rods made of small individual elements

are lined up. The rigidity and load capacity <

the entire component is not affected, ij

provided that the joints between the individual ί

Partial elements offset in the total area of the component j

are arranged against each other. In general it is not \.

^r 'required to connect the elements together f.

that the connection point can be claimed to train. | j

This is how the ends of metal rods butting against each other! connected to each other by loosely attached pipe sleeves

will. The edges of adjacent plastic cover panels

elements can be connected using suitable clamping profiles. ?

% f ί

The plastic covers and the metal rods must match the j |

The traffic loads to be absorbed are dimensioned accordingly j ¹

be. The support grid is preferably made of steel rods; however, rods made of aluminum or other me-

all use. Steel bars are used depending on the size of the overall structure and the traffic loads that occur
for example 5 - 20 mm in diameter into consideration. the
Steel bars are preferably galvanized or coated to be corrosion-resistant.

f

The connection clamps for the crossing points of the support grid are preferably also made of metal and can be made of aluminum, for example, by die casting. A design according to is expedient Fig. 3, in which the metal rods (6), (7) in'kreuzweise arranged slots (8) inserted and through a The threaded ring (9) are stuck immovably. The plastic cover (1) is attached to the same connecting clamp (10). She wears one for this purpose ^ Threaded shaft (11) through a corresponding hole leads in the plastic cover. A rigid and at the same time waterproof fastening of the plastic cover is achieved if it is made with sealing washers (12), (13) elastic material, a clamping disc (14) and a Cap nut (15) is attached. If necessary, can also the threaded shaft (11) be coated with an elastic material.

Hollow-chamber panels are suitable as a plastic cover or full profile sheets, which can be flat or corrugated. Hollow-chamber panels, for example extruded double-skin sheets, have the advantage of high inherent rigidity ■ with low weight. Polycarbonates, polymethyl methacrylate, polyvinyl chloride, glass fiber reinforced plastics are suitable as plastics Polyester or polyolefins. When using hollow chamber profiles, extruded double-skin sheets are used made of polycarbonate preferred. Full profile plates can be used with a thickness of, for example, 2 - 8 mm. Suitable hollow chamber profiles can have a thickness of 8 - 40 mm. The top and bottom covers can be of the same type or different plastic material.

Claims (5)

Protection claims 1. Composite component made of a supporting grid made of metal wires or rods and a plastic ab-! cover, which is at the points of intersection of the bearing ., grid over connecting clamps with this rigid connected is,
10 ^ characterized by that the support grid is rigidly connected on both sides with a plastic cover. 15th 2. Composite component according to claim 1, characterized in that that the metal wires or rods in at least one, preferably in both grid directions are periodically bent approximately perpendicular to the plane of the plastic covers and at the vertices rigid with the plastic cover attached are connected. 25th 3. Composite component according to claim 2, characterized in that adjacent, in the same direction running metal wires or rods are each curved in opposite directions. 4. Composite component according to claims 1 to 3, characterized in that the plastic covers are arched barrel-shaped in the same direction. 5. Composite component according to claims 1 to 3, characterized in that the plastic covers are level and parallel or opposite to one another -. are arranged at an incline on the other. 15 20 25 30th