Cattle grid mold

Abstract

Assembly for implementing a cattle grid comprising a mold (1) for casting and forming a concrete foundation (10) for the cattle grid, a plurality of transverse metal bars (2) with a rounded profile for placement on the foundation, wherein the mold (1) has four sides defining the edges of a cavity (11) above which the grid bars (2) will be arranged, on the external faces (5) of the longitudinal sides (3), a plurality of support projections (6) are provided to form, after demolding, support notches (12). FIGURE 1

Description

Title of the invention: Mold for cattle grid

[0001] technical field

[0002] The present invention relates to an assembly for implementing a livestock grid comprising a mold for casting and forming a concrete foundation to support a plurality of metal bars for placement on the foundation. Prior art

[0003] In livestock farming, it is common practice to install fencing to delimit an area where a herd can be kept. To allow entry to or exit from the defined area, one or more gates and / or one or more livestock gates or stiles are used. The latter have the advantage over gates of requiring no handling. Furthermore, they eliminate the risk of gates being left open or closed improperly. Livestock gates allow the passage of vehicles such as tractors or other agricultural machinery, as well as pedestrians. The presence of spaced bars, revealing a cavity beneath them, slows the passage of livestock. This type of device is therefore widely used and must consequently be easy and inexpensive to install.

[0004] Various systems or tools are known to facilitate the installation of livestock crossings.

[0005] For example, document GB2420738 describes a preformed mold for implementing a cattle grid. The mold includes a template delimiting a pit and crossbars. All the grid elements are cast in concrete.

[0006] The mold described in GB2420738 requires concrete to be injected into the cavity in transverse shapes. The injection operations required to ensure that the concrete completely fills all areas of the mold are complex to perform. Because the mold encloses the formed parts, demolding can be delicate and carries a risk of damage. Furthermore, in the event of imperfect injection, the transverse bars may exhibit areas of weakness.

[0007] Many documents propose using prefabricated structures to form a ready-to-install foundation. For example, GB2155526 describes a cattle grid with a prefabricated foundation. Document GB2067631 describes a one-piece prefabricated cattle grid.

[0008] These solutions are costly and require careful ground preparation, which also generates significant costs.

[0009] Document FR2183164 describes a cattle gate with two positions: a passage position and a no-pass position. A mechanism allows the rails to be positioned either flat, to allow cattle to pass through, or vertically, to prevent it. This solution is advantageous because it allows cattle to pass through when necessary. However, the mechanism for pivoting the rails is particularly complex and expensive. Most farmers will prefer to install a simple barrier, which is much less costly to implement.

[0010] To overcome these various drawbacks, the invention provides for various technical means. Summary of the invention

[0011] First of all, a first objective of the invention is to provide a modular system to facilitate the installation of cattle crossings.

[0012] Another objective of the invention is to provide simple, easy-to-install tooling, without difficulty for carrying out a concrete pour, and with easy demolding.

[0013] To this end, the invention provides for an assembly for implementing a cattle grid comprising a mold for casting and forming a concrete foundation for the cattle grid, a plurality of metal passage bars for placement on the foundation, the mold having four sides, namely two longitudinal sides and two transverse sides, allowing the edges of a cavity to be defined above which the bars of the grid will be arranged, on the external faces of the longitudinal sides, a plurality of support projections are provided to form, after demolding, support notches allowing each of the transverse passage bars of the assembly to be placed.

[0014] This system includes side walls designed for pouring concrete on the outside of these walls. No complex molding elements are provided inside the cavity. Mold placement and concrete pouring, solely on the external side, are easy to perform. The tooling is simple and inexpensive. Finally, the mold is easily reusable with other bar kits to allow for the construction of multiple cattle gates.

[0015] According to an advantageous embodiment, the mold is one piece, therefore easy to handle and transport.

[0016] According to another advantageous embodiment, the assembly also includes longitudinal reinforcing bars (in the direction of travel on the grid) to support The crossbars. This arrangement allows for a passage capable of supporting heavy loads.

[0017] Advantageously, the mold also includes reinforcement projections on the transverse sides to form notches for positioning the longitudinal reinforcement bars.

[0018] According to yet another advantageous embodiment, the mold comprises a lifting arm, centrally located and connected to at least two of the sides of the mold. This arrangement greatly facilitates the installation and removal of the mold, for example by using a winch. Brief description of the drawings

[0019] All implementation details are given in the following description, supplemented by Figures 1 to 3, presented solely for the purpose of non-limiting examples, and in which: Fig. 1

[0020] [Fig.1] [Fig.1] is a schematic top view representation of an example of a mold placed in a pit for the implementation of a cattle grid; Fig. 2

[0021] [Fig.2] [Fig.2] shows the cattle grid formed once the concrete has hardened, the mold removed, and the passage bars put in place; Fig.3

[0022] [Fig.3] [Fig.3] shows the mold of [Fig.1] seen in perspective. Description of the implementation methods

[0023] Figures 1 to 3 illustrate an example of an implementation assembly of a cattle grid, also referred to as a cattle passage.

[0024] As illustrated in [Fig.1], the assembly includes a mold 1 for casting and forming a concrete foundation 10 for a cattle grid.

[0025] The mold 1 may be metallic, wooden, or made from fiberglass-reinforced plastic and, when placed in a suitable pit in a track or road 14, it acts as a mold for the concrete that can be poured. The concrete must be poured or injected around the outer edges of the mold. After the concrete has hardened and the mold has been removed, the foundation is ready to receive the other elements of the assembly, as described below.

[0026] Once completed, as illustrated in [Fig. 2], the concrete foundation 10 defines a cavity 11 whose depth can vary, depending on the case, between 30 cm and 1 m, or even more. To partially cover the cavity and allow the passage of vehicles and / or pedestrians along the longitudinal axis LL, the foundation 10 allows for the placement of a plurality of transverse metal bars 2, preferably with a profile rounded. The number of bars varies depending on the length of the passage. These two bars are spaced apart to allow vehicles to pass but to prevent livestock from passing.

[0027] As shown in [Fig.3], the mold 1 has four sides, namely two longitudinal sides 3 and two transverse sides 4, allowing the edges of the cavity 11 to be defined under which the bars 2 of the grid will be arranged.

[0028] In addition, the mold is preferably one-piece, and therefore easy to use.

[0029] The mold is particular in that it comprises, on the external faces of the sides, a A plurality of projections will allow, after demolding, the formation of notches into which each of the grid bars will be positioned. Thus, on the external faces 5 of the longitudinal sides 3, a plurality of support projections 6 are provided to form, after demolding, support notches 12 allowing each of the transverse bars 2 of the assembly to be positioned.

[0030] Alternatively, as illustrated, in order to strengthen the installation and allow the passage of heavier vehicles, the assembly provides a plurality of longitudinal reinforcing bars 7 (arranged in the direction of travel on the grid) to support the transverse bars 2. To ensure the installation of these longitudinal reinforcing bars 7, the mold 1 also includes reinforcing projections 8 on the transverse sides 4 to form reinforcing notches 13 for positioning the longitudinal reinforcing bars 7.

[0031] To facilitate the placement of the mold in a pit previously dug for a cattle crossing, a centrally located lifting arm 9, connected to at least two sides of the mold, is provided. This arm can be fitted with a hook or chain for easy operation, for example, with a winch. The same arm allows the mold to be removed once the poured concrete has finished setting and hardening. List of reference signs

[0032] 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 Mold Crossbars Longitudinal sides Transverse sides External faces of the mold Support projection Longitudinal reinforcement bars Reinforcement projections Lifting arm Concrete foundation 11. 12. 13. 14. Cavity Support notches Reinforcing notch Ground at the junction with the passage road

Claims

Demands

1. Assembly for implementing a cattle grid comprising a mold (1) for casting and forming a concrete foundation (10) for the cattle grid, a plurality of transverse metal passage bars (2) for placement on the foundation, characterized in that the mold (1) has four sides, namely two longitudinal sides (3) and two transverse sides (4), for defining the edges of a cavity (11) above which the bars (2) of the grid will be arranged, on the external faces (5) of the longitudinal sides (3), a plurality of support projections (6) are provided to form, after demolding, support notches (12) for arranging each of the transverse passage bars (2) of the assembly.

2. Assembly according to claim 1, wherein the mold (1) is one piece.

3. Assembly according to any one of claims 1 or 2, also comprising a plurality of longitudinal reinforcing bars (7) to support the transverse bars (2).

4. Assembly according to claim 3, wherein the mold (1) also includes reinforcing projections (8) on the transverse sides (4) to form reinforcing notches (13) for positioning the longitudinal reinforcing bars (7).

5. Assembly according to any one of claims 1 to 4, wherein the mold comprises a lifting arm (9), centrally disposed and connected to at least two of the sides of the mold.

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