DE29519270U1 - Lattice frame for supporting and building up layers of humus - Google Patents

Description

DBPL. ING. AV KIRSCHBAUM** " ----- D-82110Germering

PATFNTAISrWAT T Hennann-Ehlers-Str. 21A

FAlIiNlAJNWALl Telephone: (089)8411046

Attorney file: RF-1873

Hans-Joachim Ruf

84066 Pfaffenberg

Germany

Lattice frame for supporting and building up humus layers

The invention relates to a grid for supporting and building up humus layers according to the preamble of claim 1.

In order to prevent a layer of humus that has been applied to embankments, slopes, etc. that are to be replanted from being washed away by rain, for example, or blown away in dry areas such as sandy deserts, humus can be applied in grid frames.

The well-known lattice frames are gratings about the size of a euro pallet that are placed on a base that has been prepared for planting or are attached to it accordingly. The lattice frames consist of a number of parallel bars that are connected to bars that run perpendicular to these bars and are made of rotting, pressed, soil-forming material, such as soil, combustion residues, peat, lime and a biodegradable binding agent.

The resulting rectangular areas between the webs are then preferably filled with humus. The main disadvantage of these well-known lattice frames is that

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that due to their size, their weight is so great that at least two people are usually required to carry a lattice frame. It is therefore hardly possible or only with difficulty to use these lattice frames on steep and therefore difficult to access slopes, as can be found in low mountain ranges and especially in the mountains.

Due to the predetermined shape of the lattice frames, they require a lot of space for storage and transport, with the particular disadvantage that the loading capacity of a truck can only be used to a limited extent.

The object of the invention is therefore to design a grid frame in such a way that it can be easily transported and handled.

According to the invention, this is achieved in a lattice frame according to the preamble of claim 1 by the features in its characterizing part. Advantageous further developments are the subject of the claims referring back to claim 1.

According to the invention, a number of identical, rod-shaped individual elements can be assembled into standard frames only at the site of use, and such individual frames can also be assembled on site into a lattice frame of any shape and size.

The size of these individual elements is such that a large number can be carried by one person, so that such individual elements and the standard frames formed from them can also be used to build on steep or difficult to access slopes. By assembling grid frames of different sizes from standard frames, as made possible by the invention, even very small areas damaged or at risk of erosion, for example in the mountains, can be prepared and can be rehabilitated by applying humus to the individual

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a standard framework and then replanted to secure it.

Furthermore, the individual elements can be stacked and stored without creating unused empty spaces. This also allows the loading capacity of trucks to be fully utilized.

According to an advantageous development of the invention, each individual element has a rectangular cross-section and preferably two incisions and a cutout at each end. Furthermore, both the incisions and the cutouts are preferably rectangular and alternately formed on opposite long sides of each individual element. Furthermore, the depth of each rectangular incision corresponds to half the height of each individual element.

Furthermore, according to a preferred embodiment of the invention, in a single element with two rectangular incisions and cutouts, the distance between the center of the two incisions is twice as large as the distance between the center of an incision and the center of the adjacent cutout.

According to the invention, the individual elements cannot simply be removed from the standard or lattice frame by lifting them, either in the case of each standard frame or in the case of each lattice frame composed of a number of such standard frames, since the rectangular incisions in each individual element end alternately in opposite long sides of the individual element. Thus, when constructing a standard frame, an upward incision in the individual element arranged perpendicular to it engages in each downward incision in an individual element and vice versa, or in other words, a part of an individual element always runs under a corresponding part of another perpendicular to it.

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arranged individual element.

A further advantage of the frames according to the invention is that a biodegradable binding agent is mixed or can be mixed into each individual element, so that the concentration of the biodegradable binding agent can be used to variably determine the period of time within which the standard frame assembled from individual elements or the grid frame assembled from standard frames rots or is converted into humus.

A proven, biodegradable binding agent in this regard is Terravest {registered trademark of Hüls AG). In addition, seeds can also be added to the rotting and/or humus-forming material to form and support a nutrient and permanent humus layer typical of the location.

The invention is described in more detail below using preferred embodiments with reference to the accompanying drawings. They show:

Fig.l is a schematic side view, not to scale, of a preferred embodiment of an individual element;

Fig.2 is a sectional view taken along the line II-II in Fig.l;

Fig.3 shows a schematic representation of a plan view of a control frame in the form of a control square, which is formed from four individual elements according to Fig.l, and
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Fig.4 an example of a grid frame constructed from rule frames in the form of rule squares.

In Fig.l and 2, a preferred embodiment of an individual element 1 is shown in a schematic side view and a

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— S —

Sectional view along the line II-II in Fig.l, wherein in the sectional view the rod-shaped individual element 1 has a rectangular cross-section with a width B and a height H.

Two rectangular cuts 2 are formed in opposite long sides of the individual element 1, whereby a depth T of each cut 2 corresponds to half the height H, i.e. H/2 of the individual element 1. Each individual element 1 also has rectangular cutouts 3 at its ends, whereby the depth or height of the rectangular cutouts 3 is arbitrary, but must be the same size at both ends, starting from opposite long sides of each individual element.

In order to construct a standard square, shown in Fig. 3 in plan view, from four individual elements la to Id, the notches 2 of two individual elements la and Ib, Ib and Ic, Ic and Id and Id are fitted into one another. For this purpose, for example, the notch 2 of the individual element Ib, which is open at the top, is inserted from above into the notch 2 of the individual element la, which is open at the bottom. Similarly, the notch 2 of the individual element Ic, which is open at the bottom, is inserted from above into the notch 2 of the individual element Ib, which is open at the top, etc. A standard square is thus constructed from four identical individual elements la to Id.

Using the rectangular cutouts 3 shown in Fig. 1 at the ends of the individual elements 1, any number of standard squares can be placed next to one another in any arrangement, since a standard square can be placed on all four sides of another standard square. In this way, different forms of lattice frames can be constructed.

An example of a possible form of such a grid frame is shown in Fig.4. In order to avoid shifting a control

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-&dgr;-1 frame or individual standard frames against each other, on the one hand the four crossing points of each standard frame and on the other hand the overlapping ends of two individual elements can be connected with nails (not shown) which, like the individual elements, also consist of rotting and/or humus-forming material.

Claims (6)

DIPL. ING. A. V. KIRSCHBAUM*·* '* D-82110Germering PATP1NiTANrWAT T Hermann-Ehlers-Str. 21A FAlJiN1 AN WAL·! Telephone: {Qg9) ^^ Attorney's file: RF-1873 Claims 1. Grid frame for supporting and building up humus layers on embankments or slopes from rotting and/or humus-forming, pressed material, characterized in that that a number of identical, rod-shaped individual elements (1) are assembled to form a standard frame and that a lattice frame of any shape and size can be assembled from such standard frames. 2. Lattice frame according to claim 1, characterized in that each individual element (1) has a rectangular cross-section and preferably has two incisions (2) and a cutout (3) at each end, 3. Lattice frame according to claim 2, characterized in that rectangular incisions (2) and rectangular cutouts (3) are formed alternately in opposite longitudinal sides of each individual element (1). 4. Grid frame according to claim 3, characterized in that the depth (T) of each rectangular recess (2) corresponds to half the height (H/2) of each individual element (1). 5. Lattice frame according to one of the preceding claims, characterized in that the distance between the center of the two incisions (2) is twice as large as the distance between the center of an incision (2) and the center of the adjacent cutout (3). 6. Grid frame according to one of claims 1 to 5, characterized in that by the concentration of a biologically PATHvITANLATTORNEYFORKIRSCHBALBF 1 buildable binder, the rotting time of the individual elements (1) is determined.