DE8008243U1 - SCAFFOLDING BOARD FROM SEVERAL MATERIAL LAYERS - Google Patents

Description

The invention relates to a scaffolding panel made up of several material layers with front-side receptacles for fasteners.

Scaffolding panels are used in scaffolding as stiffening and projection panels as well as for the strength of the scaffolding structure Contributing and / or accessible components use.

In addition to the predominantly occurring scaffolding panels. massive boards or planks are already such became known, which consists of two parallel, spaced apart, thin end plates Plywood or the like exist, between which in the longitudinal direction or approximately in the longitudinal direction of the hat a plurality of spaced apart Bars is provided, the narrow sides of this plate by means of between the thin end plates provided wide strips of wood are completed, which through the ends of the longitudinal strips and adjacent, the gaps between these strips filling short strips of strips or by a in execution The wooden board running to the plate, on which the longitudinal strips end, are formed (DB-PS 1559025) · This is intended to be a weight saving as well an improvement in stability compared to the scaffolding panels made of solid wood can be achieved.

However, there is no disadvantage to such scaffolding panels only the extraordinarily large manufacturing effort, in their manufacture and the still considerable weight the same, caused by the used

metallic Seitonstege and the group consisting of solid wood stiffening webs and the end-face Bblzbretter, but above all the fact that in the multiple hollow / there at all or only evaporates very slowly and leads to an initially hidden fouling of adjacent Bolzteile space thereof penetrating water. This ingress of water can never be avoided with certainty with the previously known scaffold construction, so that the use of such scaffolding panels is associated with a considerable safety risk, since the strength of the same can be reduced to a fraction of the original strength due to hidden sources of putrefaction, although the scaffolding panel is still externally appears to be completely intact. - Attempts have therefore already been made to prevent the accumulation of water within the cavities of such a scaffolding panel by foaming these cavities with plastic. However, this achieved exactly the opposite effect, because the plastic, which is foamed in without significant pressure, has considerable absorbency and, due to its sponge effect, forms a constant water reservoir, so that permanent putrefaction processes now occur in the wooden parts.

The invention is based on the object of creating a scaffolding panel of the type described above, which is largely weather and moisture resistant nevertheless, based on known scaffolding panels, with the same load-bearing capacity, a considerably lower one Has weight and is more economical to manufacture.

According to the invention, this object is achieved by that the scaffolding board receives a light core made of foam with increased strength, which is on all sides is surrounded by a closed cover layer made of high-strength plastic and is negligibly small Has absorbency.

This cover layer can in a further development of the invention consist of one or more plastic mats glued to one another and to the core under pressure.

In particular, there is increased strength when The plastic mats are synthetic resin-soaked Texfcil glass mats are.

A scaffolding panel according to the invention thus has a complete closed EoM box made of high-strength plastic, which is raised by a foam core Maintains strength.

As is known, this hollow box has a very large section modulus against both bending and torsion, since the effective cross-sections of the hollow box that absorb the load have a predetermined large distance from one another. The 7 "1 FTK Hmn yyhKyig e zwiAchen the modulus of! Beam against bending and torsion and the geometric dimensions of its effective cross sections R TTTd commonly known n nri need at this point no further discussion to be .On definitely found in the inventive Gerlisttafel a optimal utilization of the high-strength plastic material instead, which ultimately results in a minimal overall weight of the scaffolding panel with a high load-bearing capacity.

In the context of the invention, such a scaffolding panel in the area of their narrow end faces by means of impact-resistant reinforcement caps pushed over the ends and glued there Plastic, for example IVG, additionally reinforced to prevent damage to the scaffolding panel during one time the scrubbing, in the course of which, as is well known, scaffolding panels are often thrown from a great height onto the building site, to the greatest possible extent and to prevent on the other hand, the tensile strength of the scaffolding panel in the area of the holes for the usual fasteners to increase. For this purpose, it is completely sufficient to apply the reinforcement caps mentioned, which also an extremely economical use of the relatively expensive impact-resistant plastic material takes place.

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Other features and advantages of the invention are "sew d • the position shown in the drawing embodiments of the invention Geriisttafel explained. Show it:

Fig. 1 is a perspective view of a inventiveness () proper scaffolding board in the exploded

Condition of the individual parts before gluing and pre-pressing,
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2 shows the perspective illustration of an armored narrow end face of the scaffolding panel

and

Fig. 3 is a perspective view of a reinforced schematic end face of the scaffolding panel in something different training of the reinforcement cap.

According to Fig. 1, the core consisting of foam with increased strength is with its entire circumference Miter-cut Eandverschlußprofilen (3) reinforced, which are made of high-strength plastic, wherein so-called glass fiber reinforced material is expediently used. Wooden plates (2) are glued into the corners, which lie in the zone through which the mounting holes are placed and which are there a perfect reinforcement of the core (1).

On the core (1) prepared in this way, each Side five mats (4 ·) made of a particularly strong plastic soaked glass fabric glued on. The number of mats (4) was chosen here only as an example of five, it can be varied depending on the strength expectations be placed on the scaffolding board.

Then both sides are covered by a textile glass mat (5) sealed with a particularly high glass content, which is also glued on and a particularly tight one Forms surface that is crack-proof to an increased extent. Then the scaffolding panel (6) is exposed pressed by pressure and heat and brought to their final strength.

The molds can easily be designed in such a way that the large surfaces of the scaffolding panel (6) have a structure which, for example, improves accessibility through increased security.

Fig. 2 shows a sin of the scaffolding panel (6), which by a pressed and glued reinforcement plate (7) made of impact-resistant plastic, for example toilet, reinforced

is. The reinforcement cap (7) takes the conventional one External bores (8) of the scaffolding panel (6).

According to Hg.3 the ib3rierungskappe (7 ') is a little different gefoiffit. This lOim is easier to manufacture, brings. However, a slightly higher cost of materials compared to the arming cap (7) according to Fig. 2 with itself.

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List of drawing positions

1 core

2 bolt plates

Bacd closure profile

4 mats

5 textile glass mat

6 Scaffolding board 7 »7 * Annierungskappe 8 AuJ

Claims (3)

Claims : · Scaffolding panels made of several material layers with frontal Holders for fasteners, characterized by a light egg (1) made of foam with increased strength, covered on all sides by a closed top layer (2-5) is surrounded by high-strength plastic and has a negligibly low absorbency. 2. scaffolding panel according to claim 1, characterized in that it is characterized that the cover layer (2-5) consists of one or more with each other and with the core (1) Plastic mats bonded under pressure and temperature (3-5) exists. 20th 3. Scaffolding panel according to claim Λ , characterized in that the ßinststoffmatten (3-5) are synthetic resin-soaked Texfcilglasmatten * 4-, scaffolding panel according to one of claims 1 to 3, characterized characterized in that the same Aimierungskappen (7) over both narrow end faces Injection molding are pushed and glued through the usual mounting holes (8) for fasteners to lead. 30th