ES2674824T3 - Protection fence element of a vehicle containment system - Google Patents

Abstract

Protection fence element (6) of a vehicle containment system comprising a concrete body (7), in which at least one traction element (1) is arranged in the concrete body (7), so that that the tensile element(s) (1) is/are connected to at least one coupling piece (21, 22) that protrudes at least in certain areas of the concrete body (7), in such a way that that the traction element(s) (1) and the coupling part(s) (21, 22) are connected to each other by means of a form-fit connection, in such a way that for the force-fit connection of form(s) the coupling part(s) (21,22) have a passage opening (31,32), so that the traction element(s) (1) pass through the passage opening (31 , 32), characterized in that the coupling part(s) (21, 22) has/have a support for guiding the traction element (4) curved following the shape of the passage opening (31, 32). ), and because the support for the guide of the traction element ion (4) has a radius of curvature of at least 1 cm.

Description

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DESCRIPTION

Protection fence element of a vehicle containment system

The invention relates to a protection fence element of a vehicle containment system in accordance with the general concept of claim 1 of the patent.

The elements of the conventional protection fences consist of a concrete body and traction elements with coupling parts that allow the creation of a continuous vehicle containment system using prefabricated protection fence elements. To form the vehicle restraint system, several protection fence elements must be joined together successively on the front side. The vehicle containment system serves as containment for the colliding vehicles, and the coupled traction elements form a continuous brace that prevents the vehicle from overthrowing the vehicle containment system. In conventional fencing elements the tensile elements are welded to the coupling parts.

The drawback is that these welded joints must meet very strict resistance requirements since their integrity depends largely on the integrity of the occupants of a vehicle in the event of a collision. In this regard, it should be especially monitored that, in the event that this welded joint fails, a nicking effect is not caused. Often, the tensile elements and the coupling parts are composed of materials of different qualities and / or of different surface temperings, so it is very difficult to achieve a reliable welded joint.

From GB 2 219 332 A a protection fence element of a vehicle containment system with a concrete body, coupling elements and traction elements is known. In this system, the coupling element has a passage opening in the concrete body through which a hook-shaped reinforcement bar passes at the end.

From US 5 046 884 A a protection fence element of a vehicle containment system with a concrete body, coupling elements and a traction element is also known. The traction element has, at one end, several open clamps that are attached to one of the flanges that are in the concrete body of the coupling element designed as a support I, and thus held in a trailed shape.

Therefore, the task of the invention is to define a protection fence element of a vehicle containment system of the type mentioned at the beginning with which the aforementioned inconveniences can be avoided, that can be easily constructed and that ensures reliable operation and sure.

According to the invention, this is achieved with the features of claim 1 of the patent.

According to said claim, the advantage is achieved that the protection fence element can be constructed simply and reliably, since laborious welded joints are no longer necessary and thus the risk of defective welding can be excluded. In addition, when making the selection of materials it is not necessary to verify that the coupling parts and the traction element (s) have good weldability. Thanks to the drag-in connection, a simple and reliable connection of the traction element (s) with the coupling part (s) can be achieved, so that the transmission of force between the transmission element traction and the coupling piece can be determined well and in particular it can occur on a wide surface. Since the tensile element is surrounded by the concrete body, there is no risk that the trailed joint will loosen over time.

The subclaims refer to other advantageous configurations of the invention.

This document expressly refers to the wording of the patent claims, so that at this point they are incorporated into the description by reference, and will be considered as reproduced verbatim.

The invention is described in more detail with reference to the accompanying drawings, in which only exemplary preferred embodiments are shown. These illustrations show the following:

Fig. 1: A part of a first preferred embodiment of a protection fence element in an axonometric representation;

Fig. 2: A part of a second preferred embodiment of a protection fence element in an axonometric representation;

Fig. 3: A part of a third preferred embodiment of a protection fence element in an axonometric representation;

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Fig. 4: A part of a fourth preferred embodiment of a protection fence element in an axonometric representation;

Fig. 5: Side view of the fifth preferred embodiment of a protection fence element, in an idealized representation.

Figs. 1 to 5 show in all cases parts of preferred embodiments of a protection fence element 6 of a vehicle containment system comprising a concrete body 7, in which at least one traction element 1 is arranged in the concrete body 7 so that the traction element (s) 1 is (s) connected to at least one coupling part 21,22 that protrudes at least in certain areas of the concrete body 7 .

The protection fence element 6 is part of a vehicle containment system in which the protection fence element 6 can be a prefabricated element, preferably of concrete, which is then taken to the installation site. The protection fence element 6 can be specially designed for placement along a road or between two rails.

The protection fence element 6 has a concrete body 7 designed to absorb the momentum of a collision. The concrete body 7 can be made of concrete or a mixture of concrete. The concrete body 7 can have, at the base, a support surface 71. It can also be provided that the concrete body 7 has a New Jersey profile or a Step profile. The concrete body 7 is not shown in Figs. 1 to 4.

At least one traction element 1 is disposed in the concrete body 7, which can pass especially through the entire concrete body 7 and which, in the event of a collision, can absorb the tensile forces acting on the concrete body 7. El / Los tensile element (s) 1 can be cast by casting in the concrete body 7. The tensile element (s) 1 can be especially metal, preferably steel and especially corrugated steel. Since the tensile element 1 is protected from the weather by the concrete body 7, said element 1 can be manufactured especially without any surface tempering, for example, with a non-galvanized steel.

The tension element (s) 1 may be a reinforcement bar or a reinforcement cable.

The tension element (s) 1 is at least connected to a coupling piece 21,22, especially two coupling parts 21,22, such that the coupling part 21,22 has been designed to be able to be coupled to a coupling part 21,22 of another protection fence element 6 and thus to join the traction elements 1 of the elements 6 forming a continuous tie.

In Fig. 5 an idealized protection fence element 6 is shown, in which inside the concrete body 7 the inner parts are represented with a broken line.

It is envisioned that the traction element (s) 1 and the coupling part (s) 2 are connected to each other by means of a trailed connection. The drag-shaped joint is a joint in which the forces and movements are transmitted mainly vertically with respect to a level of contact thanks to the shape of the parts involved in the joint. The form drag can take place especially in relation to a tension displacement of the joint in the longitudinal direction of the protective fence element 6. In this way the shape drag joint differs from the material drag joint, in which the union is generated by molecular forces, or a union simply in force drag.

The advantage is that the protection fence element 6 can be constructed simply and reliably, since it is no longer necessary to make laborious welded joints and thus the risk of defective welding can be excluded. Furthermore, when choosing the materials of the coupling parts 21,22 and of the protection fence element (s) 1 it is not necessary to take into account the weldability of the materials. Thanks to the drag-in connection, a connection of the traction element (s) 1 with the coupling part (s) 21,22 can be achieved which is simple and reliable, since the transmission of the The force between the pulling element 1 and the coupling part 21,22 can be determined well and in particular it can be produced on a wide surface. Since the traction element 1 is surrounded by the concrete body 7, there is no risk that the trailed joint will loosen over time.

Preferably, a vehicle restraint system can be provided that includes a large number of protection fence elements 6 joined by the coupling parts 21,22. In Figs. 1 to 3, coupling parts 21,22 are shown which are attached to coupling piece 21,22 of the adjacent protection fence element 6.

Preferably, it can be provided that the protective fence element 6 has at both ends a coupling piece 21,22 in which preferably a first coupling piece 21 is placed in a

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first front wall of the concrete body 7 and a second coupling part 22 is placed on a second front wall of the concrete body 7. In this case, preferably the first coupling part 21 may protrude from the first front wall of the concrete body 7 and / or the second coupling piece 22 may protrude from the second front wall of the concrete body 7.

The coupling parts 21,22 may also have a specially exposed contact surface for contacting the other coupling part 21,22. That is, the contact surface will not be surrounded by the concrete body 7.

The coupling parts 21,22 can be especially made of a corrosion resistant material, especially a stainless steel and / or with a tempering of the corrosion resistant surface, preferably in the form of galvanization.

It may also be provided that the first coupling part 21 has an appendix 23, that the second coupling part 22 has a housing 24 and that the appendix 23 is designed to be able to be inserted in the housing 24 and thus create a drag joint so that it can be released. Appendix 23 may preferably protrude from the concrete body 7, so that the housing 24 is sunk into the concrete body 7.

Appendix 23 and housing 24 may have a constant cross-section, especially in the vertical. Several protection fence elements 6 of this type can be created to create a vehicle containment system.

Alternatively, it may be provided that the first coupling part 21 and the second coupling part 22 have a housing 24, and that for the coupling an additional coupling part is arranged which is inserted in both housings 24. In this case, preferably the First coupling piece 21 and the second coupling piece 22 are sunk into the concrete body 7.

Especially, it can be provided that the protection fence element 6 has a tension element 1.

Alternatively, it can be provided that the protection fence element 6 has several tension elements 1, especially two.

Particularly preferably, it can be provided that the shape drag joint can be released without the concrete body 7, and that the shape drag joint is fixed by the concrete body 7. In this way the passage in the that the tension element 1 or the coupling part 21,22 must be deformed to make the connection.

Preferably, it can also be provided that the traction element (s) 1 and the coupling part (s) 2 are connected to each other directly in a drive. This direct drag-in connection means that the drag-in connection is achieved without bolts, rivets, additional screws or the like, but that the traction element 1 and the coupling part 21,22 are designed in such a way that they themselves they create the trailing joint in their direct contact surfaces.

In accordance with the invention, it is provided that, for the trailed connection, the coupling piece (s) 2 has a passage opening 31.32 and that the traction element (s) 1 it is introduced through said opening 31,32. The passage opening 31,32 can run especially perpendicular to the longitudinal extension of the protection fence element 6. In the event that the traction element 1 suffers a tensile load, the traction element 1 placed in the passage opening 31,32 it can transmit the tensile load directly to the coupling piece 2. This type of shape drag connection is presented in the embodiments according to the invention of Figs. 1, 2 and 4. In this sense it can be provided that for each traction element 1 connected to the coupling part 21,22 a passage opening 31,32 is arranged for each coupling part 21,22.

Especially preferably, it can be provided that the traction element 1 is introduced through the passage opening 31.32 by rotating 180 °. In this case, the traction element 1 can have a first part 11 and a second part 12 that run longitudinally with respect to the protection fence element 6 so that between the first part 11 and the second part 12 the traction element 1 is turn off at the passage opening 31.32. In this way it is not necessary to close the traction element 1 in the area of the coupling part 21,22, since the traction element 1 first goes towards the coupling part 21,22 and then again moves away from it. Thus, it is not necessary for the traction element 1 to have any special design, since for traction connection only it is necessary to pass the traction element 1 through the passage opening 31,32.

In accordance with the invention, it is also provided that, the coupling piece (s) 21,22 present a support for the guide of the curved traction element 4 following the shape of the passage opening 31,31, and that said support 4 has a radius of curvature of at least 1 cm. Preferably, the radius of curvature can be as

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minimum 3 cm, and especially preferably at least 5 cm. This support for the guide of the traction element 4 makes it possible to achieve a good transmission of the force from the traction element 1 to the coupling part 21,22, thus preventing the traction element 1 from bending. In addition, the support 4 can also be advantageous when a traction element 1 in the form of a bar is used, since the support 4 favors the bending of the traction element 1 when making the joint.

Preferably, it can be provided that, in the operative position, the passage opening 31.32 runs mainly vertically. That is, the passage opening 31,32 can run especially perpendicular to the bearing surface 71 of the concrete body 7. This gives the advantage that the transmission of the force of the traction element 1 to the coupling part 21 , 22 can run along the entire height, so that especially the appendix 23 and the housing 24 can be designed in such a way that they can transmit the forces along the vertical. In this way, a particularly advantageous transmission of force can be achieved. Furthermore, in this way the protection fence element 6 can have a very narrow design. A passage 31.32 of this type is shown in Figs. 2 and 4.

It can also be provided that, in the operative position, the passage opening 31,32 runs mainly horizontally with respect to the longitudinal extension of the protection fence element 6. That is, the passage opening

31.32 can run transversely to the longitudinal extension of the protection fence element 6 and parallel to the support surface 71 of the concrete body 7. The advantage is that the coupling part 21,22 in this case can be a laminated part or a continuous casting piece. A passage opening is shown in Fig. 1

31.32 of this type.

The traction element 1 can be placed particularly preferably in a continuous arrangement in the concrete body 7, so that the traction element 1 essentially runs continuously from a first front wall of the protective fence element 6 to a second front wall of the protection fence element 6.

In this case, each tensile element 1 is placed in a continuous arrangement in the concrete body 7, each tensile element 1 joining the coupling piece 21,22.

Particularly preferably, it can be provided that the tension element (s) 1 is inserted through a passage opening 31 of the first coupling part 21 and through a passage opening 32 of the second coupling part 22, so that the tension element (s) 1 essentially form a loop.

In this case, the traction element 1 can have a first part 11 that passes through both passage openings

31.32 so that element 1 rotates in both passage openings 31.32. The second part 12 of the traction element 1 passes through the passage opening 31 of the first coupling part 21 towards the second coupling part 22, finishing before reaching the second coupling part 22. Similarly, a third part 13 of the traction element 1 passes through the passage opening 32 of the second coupling part 22 towards the first coupling part 21, finishing before reaching the first coupling part 21. Then, the second part 12 can be correctly joined to the third part 13. This preferred embodiment of the protection fence element 6 is shown by way of example in Fig. 4. This loop makes it possible to construct a protection fence element 6 that is especially reliable and very easy to manufacture.

The union of the second part 12 with the third part 13 can be carried out preferentially causing them to run in parallel and overlapping. In this way, the second part 12 can be joined with the third part 13 passing through the concrete body 7.

Alternatively, the connection of the second part 12 with the third part 13 can be carried out by welding, for example, with a fillet weld.

An end of the second part 12 can also be joined with an end of the third part 13 by means of a sleeve, especially a threaded sleeve.

In an alternative embodiment, a predetermined number of tensile elements 1 can be arranged in a protective fence element 6 so that the individual tensile elements 1 are attached at most to a coupling piece 21,22 so that the individual tensile elements 1 are joined together within the concrete body 7.

In a variant not included in the invention, it may be provided that the trailed connection between the tension element (s) 1 and the coupling piece (s) 2 is a screwed connection 5. With the screwed connection 5 a compact transmission of the force between the traction element 1 and the corresponding coupling part 2 can be achieved. An example of a preferred embodiment is shown in Fig. 3 and is not part of the scope of protection of the patent of the protection fence element 6 with a screwed connection 5. In particular it can be provided that the element ( s) of traction 1 have at one end an external thread 51 and that the external thread 51 is screwed to a threaded body 52 of the coupling part (s) 2. In this way

an especially simple threaded joint 5 can be established, with which an especially good transmission of the force between the pulling element 1 and the coupling piece 21,22 can be achieved.

In other embodiments not corresponding to the invention, the shape drag joint may be a dovetail joint 5 or a tongue and groove joint.

Particularly preferably, it can be provided that the coupling piece (s) 21,22 is a cast piece in a mold. This means that the coupling part 21,22 melts discontinuously in a mold and not in continuous casting. The mold can be a lost mold. It can also be a permanent mold. The advantage 10 of the castings individually is that thanks to their three-dimensional shape they give more freedom than a piece of laminated coupling or continuous casting, in which the cross-section is essentially constant in one dimension. Thus, for example, a vertical opening 31.32 can be created, which is very difficult to do in the case of continuous casting or lamination. In addition, the shape of the coupling part 21,22 can be adjusted much better to the expected flow of force thanks to the drag-in connection, for example, by means of the design of the support for the guide of the traction element 4. Al Making the coupling piece 21,22 as a cast piece, the advantage is also obtained that its manufacturing saves material.

Claims (7)

5 10 fifteen twenty 25 30 1. Protection fence element (6) of a vehicle containment system comprising a concrete body (7), in which at least one traction element (1) is arranged in the concrete body (7), so that the tension element (s) (1) is (are) connected with at least one coupling piece (21,22) that protrudes at least in certain areas of the concrete body (7), such that the tension element (s) (1) and the coupling part (s) (21,22) are connected to each other by means of a trailed connection so that for the connection in drag the coupling piece (s) (21,22) have a passage opening (31,32), so that the traction element (s) (1) pass through the passage opening (31,32), characterized in that the coupling piece (s) (21,22) has a support for the guide of the traction element (4) curved following the shape of the passage opening (31 , 32), and why support for the gu a pulling element (4) has a radius of curvature of at least 1 cm. 2. Protection fence element (6) according to claim 1, characterized in that the traction element (1) introduced by the passage opening (31,32) rotates mainly 180 °. 3. Protection fence element (6) according to claim 1 or 2, characterized in that, in the operative position, the passage opening (31,32) runs mainly vertically. 4. Protective fence element (6) according to claim 1 or 2, characterized in that, in the operative position, the passage opening (31,32) runs mainly horizontally and transversely to a longitudinal extension of the fence element. protection (6). 5. Protection fence element (6) according to one of claims 1 to 4 characterized in that the traction element (s) (1) is introduced (n) through a passage opening (31) of a first piece coupling (21) and through a passage opening (32) of a second coupling part (22), so that the tension element (s) (1) mainly form a loop. 6. Protection fence element (6) according to one of claims 1 to 5, characterized in that the coupling piece (s) (21,22) is / are a cast in a mold. 7. Vehicle containment system comprising a series of protective fence elements (6) according to one of claims 1 to 6, wherein the protective fence elements (6) are coupled to each other by the coupling parts (21,22).