AT515842B1 - Guide wall element of a vehicle restraint system - Google Patents

Abstract

In a guide wall element (6) of a vehicle restraint system comprising a concrete body (7), wherein at least one tension element (1) in the concrete body (7) is arranged, wherein the at least one tension element (1) with at least one, at least partially from the concrete body (7 ), wherein the at least one tension element (1) and the at least one coupling part (21, 22) are interconnected by means of a positive connection, wherein for the positive connection the least one coupling part (21, 22) has a passage opening (31, 32), wherein the at least one tension element (1) through the passage opening (31, 32) is carried out, it is proposed that through the passage opening (31, 32) performed tension element (1) substantially is deflected by 180 °.

Description

Description [0001] The invention relates to a baffle element of a vehicle restraint system according to the preamble of claim 1.

Conventional baffle elements comprise a concrete body as well as tension members with coupling members for forming a through-vehicle restraint system from the prefabricated baffle members. In the formation of the vehicle restraint system, a plurality of baffle elements are lined up frontally and connected to each other. The vehicle restraint system serves to restrain impacting vehicles, the traction elements coupled together forming a continuous drawstring which prevents the vehicle from breaking the vehicle restraint system. In this case, in conventional Leit¬ wall elements, the tension elements and the coupling parts are welded together.

The disadvantage of this is that particularly high demands are placed on this welded joint, since the health of the vehicle occupant largely depends on its reliable functioning during the collision of a vehicle. In particular, care should be taken here that a failure of this weld is not caused by a Kerbwir-kung. Often, the tension elements and the coupling parts are formed of different grade materials and / or different surface finish, thereby making the formation of a reliable welded joint very expensive.

From US 4 806 044 B a baffle element with a concrete body is known. In the concrete body longitudinal tension elements are arranged, the ends of which have an external thread and protrude from the front side of the concrete body. With the ends of a base plate of the coupling parts is screwed.

From US 2008/0118305 A1 a baffle element is known which comprises a hollow base made of plastic. The baffle element has tension elements which are looped around coupling elements and thus form a tension band.

The object of the invention is therefore to provide a baffle element of a Fahrzeugrückhaltesys¬tems of the type mentioned, with which the mentioned disadvantages can be avoided, which can be easily formed and yet ensures a reliable and safe operation.

This is achieved by the features of claim 1 according to the invention.

This results in the advantage that the baffle element can be easily and yet reliably formed, since no complex welded connection is more necessary, the risk of a defective weld can be excluded. Furthermore, care must be taken when selecting the materials of the coupling parts and the at least one Zugele¬mentes on a good weldability. Due to the positive connection, a reliable connection of the at least one tension element with the at least one coupling part can be achieved, which is simple and reliable, wherein the force introduction between the tension element and the coupling part can be well specified, and in particular can be made over a large area. Further, since the tension member is surrounded by the concrete body, there is no danger that the positive engagement will loosen over time.

The dependent claims relate to further advantageous embodiments of the invention.

Specifically, reference is hereby made to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.

The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. FIG. 1 shows a part of a first preferred embodiment of a baffle element in axonometric representation; FIG. FIG. 2 shows part of a second preferred embodiment of a Leitwandelemen¬ tes in axonometric representation; Fig. 3 shows part of a third preferred embodiment of a baffle element in axonometric view; Fig. 4 shows part of a fourth preferred embodiment of a baffle element in axonometric view; and Figure 5 illustrates the fourth preferred embodiment of a baffle element as idealized

Presentation in side view.

Figures 1 to 5 show at least parts of preferred embodiments of a side wall element 6 of a vehicle restraint system comprising a concrete body 7, wherein at least one tension element 1 is arranged in the concrete body 7, wherein the at least one tension element 1 comprises at least one, at least partially, concrete body 7 ragen¬den, coupling part 21,22 is connected.

The baffle element 6 is part of a vehicle restraint system, wherein the Leit¬ wall element 6 in particular as a finished part, preferably as precast concrete, may be formed, which is preferably prefabricated and then can be brought to the place of use. The baffle element 6 may in particular to the arrangement next a road or between two lanes.

The baffle element 6 has a concrete body 7 which is intended to receive the impact impulse. The concrete body 7 may be concrete or a concrete mix. The concrete body 7 can in this case have a contact surface 71 on the underside. Furthermore, it can 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.

In the concrete body 7 at least one tension element 1 is arranged, which insbeson¬dere can run continuously in the concrete body 7, and in the event of an impact should act on the concrete body 7 acting tensile forces. The at least one tension element 1 can be cast in Betonkör¬per 7. The at least one tension element 1 may in particular be made of metal, preferably of steel, in particular of reinforcing steel. Since the tension element 1 is protected from environmental influences by the concrete body 7, the tension element 1 can be designed, in particular, freely from a surface finish, for example an unpainted steel.

The at least one tension element 1 can in this case be a reinforcing rod or a Beweh¬rungsseil.

The at least one tension element 1 is connected to at least one coupling part 21,22, in particular two coupling parts 21,22, wherein the coupling part 21,22 vorgese¬hen is coupled to a coupling part 21,22 another Leitwandelementes 6 To wer¬den to connect the tension elements 1 of the individual Leitwandelemente 6 to a continuous Zug¬band.

Such a baffle element 6 is idealized in Fig. 5, wherein the innen¬halb the concrete body 7 arranged parts are shown by dashed lines.

It is provided that the at least one tension element 1 and the at least one coupling part 2 are connected to each other by means of a positive connection. The positive connection here is a connection in which forces and movements are transmitted substantially perpendicular to a plane of contact by the shape of the parts involved in the connection. In this case, the positive connection, in particular with respect to a tensile loading of the connection in the direction of a longitudinal extent of Leitwan¬delementes 6 take place. The positive connection therefore differs from a material connection in which the connection is generated by molecular forces, or a pure non-positive connection.

This results in the advantage that the baffle element 6 can be formed easily and yet zu¬ reliably, since no complex weld is necessary, the risk of a defective weld can be ruled out.Weiter must in the choice of materials of the coupling parts 21st , 22 and of the at least one tensile member 1, care is not taken to ensure good weldability. By formschlüs¬sige connection a reliable connection of the at least one traction element 1mit the at least one coupling part 21,22 can be achieved, which is simple and reliable, the force introduction between the tension element 1 and the coupling part 21,22 can be well specified, and in particular can take place over a large area. Furthermore, since the tension element 1 is surrounded by the concrete body 7, there is also no risk of the form-fitting connection becoming loose over time.

Preferably, a vehicle restraint system comprising a plurality of Leitwandele¬ segments 6 may be provided, wherein the baffle elements 6 are coupled by means of the coupling parts 21,22mit each other. In this case, coupling parts 21,22 are shown in Figs. 1 to 3, which are connected to the coupling part 21,22 of the adjacent baffle element 6.

Preferably, it can be provided that the guide wall element 6 has a coupling part 21,22 at both ends, wherein particularly preferably a first coupling part 21 is arranged on a first end wall of the concrete body 7, and a second coupling part 22 is arranged on a second end wall of the concrete body 7 , In this case, preferably, the first coupling part 21 protrude from the first end wall of the concrete body 7, and / or the second coupling part 22 protrude from the second end wall of the concrete body 7.

In particular, the coupling parts 21, 22 can each have an exposed contact surface provided for contacting the other coupling part 21, 22, in other words, which contact surface is not surrounded by the concrete body 7.

The coupling parts 21, 22 may in particular have a corrosion-resistant material, in particular a corrosion-resistant steel and / or a corrosion-resistant surface finish, preferably in the form of a galvanizing.

Furthermore, it can be provided that the first coupling part 21 has a coupling extension 23, that the second coupling part 22 has a coupling receptacle 24, and that the coupling extension 23 is formed to engage the coupling receptacle 24 and derarteine form a releasable positive connection. The coupling extension 23 may preferably protrude from the concrete body 7, the coupling receptacle 24 being sunk in the concrete body 7.

The coupling extension 23 and the coupling receptacle 24 may have a constant cross-section, in particular in the vertical. As a result, a plurality of such side wall elements 6 can be formed into a vehicle restraint system.

Alternatively, it may be provided that the first coupling part 21 and the second Kupp¬lungsteil 22 have a coupling receptacle 24, and that an additional coupling piece is provided for the coupling that engages in both coupling receptacles 24. Hereby, preferably, the first coupling part 21 and the second coupling part 22 can be recessed in the concrete body 7.

In particular, it can be provided that the guide wall element 6 has a tension element 1.

Alternatively, it can be provided that the guide wall element 6 has several, in particular two tension elements 1.

Particularly preferably, it can be provided that the positive connection without the concrete body 7 would be solvable, and the positive connection is fixed only by the Betonkör¬per 7. This eliminates the step in which the tension member 1 or the Kupp-lunqsteil 21,22 would have to be deformed to make the connection.

Furthermore, it can be preferably provided that the at least one tension member 1 and the at least one coupling part 2 are directly positively connected with each other. This direct positive connection means that the positive connection without bolts, rivets, additional screws and the like is formed, but that the tensile element 1 and the coupling part 21,22 are formed such that they form the formschlüs¬sige connection to the direct contact surface.

Particularly preferably it can be provided that for the positive connection the least one coupling part 2 has a passage opening 31,32, and that at least one tension element 1 is performed through the passage opening 31,32. The passage opening 31, 32 may in this case in particular extend substantially orthogonally to the longitudinal extent of the guide wall element 6. In a tensile load of Zugelemen¬tes 1 arranged in the passage opening 31,32 tension element 1, the tensile load directly to the coupling part 2 forward. Such a positive connection is provided in the preferred embodiments of FIGS. 1, 2 and 4.

In this case, it can be provided that a feedthrough opening 31, 32 per coupling part 21, 22 is provided per pulling element 1 connected to the coupling part 21, 22.

Particularly preferably, it can be provided that the tension element 1, which is guided through the lead-through opening 31, 32, is deflected essentially by 180 °. In this case, the pulling element 1 may have a first section 11 extending in the direction of the longitudinal extension of the guide wall element 6 and a second section 12, the tension element 1 being deflected in the passage opening 31, 32 between the first section 11 and the second section 12 becomes. This eliminates a conclusion of the tension element 1 in the region of the Kupplungsteiles21,22, since the tension element 1 to the coupling parts 21,22 first out and then wegge¬ again. Thereby, no special design of the tension member 1 is necessary because it is sufficient for the formation of the positive connection, the tension member 1 to perform through the through-opening 31,32.

In particular, it may be provided that at least one coupling part 21,22 has a curved Zugelementführungsauflage 4 adjoining the Durchführungsöffnung 31,31, and that the Zugelementführungsauflage 4 has a radius of curvature of at least 1cm. Preferably, the radius of curvature may be at least 3 cm, more preferably at least 5 cm. By this Zugelementführungsauflage 4 a good introduction of force from the tension element 1 can be achieved on the coupling part 21,22, wherein the pulling element 1 is prevented from being kinked. Furthermore, tension element guide support 4 can be advantageous if a rod-shaped tension element 1 is used, since the tension element guide support 4 assists in bending the tension element 1 during the production of the connection.

Preferably, it may be provided that - seen in the operating position - the passage opening 31,32 is substantially vertical. The passage opening 31, 32 may, in other words, run substantially orthogonally to the contact surface 71 of the concrete body 7. This results in the advantage that the power transmission from the tension member 1 can extend to the coupling part 21,22 over the entire height, in particular also the coupling extension 23 and the coupling receptacle 24 can be designed to transmit the Kräf¬te along the vertical. As a result, a particularly advantageous power transmission can be achieved. Furthermore, the guide wall element 6 can thereby be made very narrow. A through opening 31, 32 formed in this way is shown in FIGS. 2 and 4.

Furthermore, it can be provided that - seen in the operating position - the Durchführungsöff¬nung 31,32 substantially horizontally and transversely to the longitudinal extent of the Leitwandele¬mentes 6 runs. In other words, the passage opening 31, 32 can run transversely to the longitudinal extension of the guide wall element 6 and parallel to the contact surface 71 of the concrete body 7. This has the advantage that the coupling part 21, 22 can be easily produced as a rolling part or a cast part. A through opening 31, 32 formed in this way is shown in FIG. 1.

The tension element 1 can be particularly preferably provided for continuous arrangement in the concrete body 7, in which the tension element 1 extends essentially continuously from a first end wall of the baffle element 6 to a second end wall of the side wall element 6.

Here, preferably, each tension element 1 may be provided for the continuous arrangement in the Be¬tonkörper 7, wherein in particular each tension element 1, the coupling part 21,22 connects to each other.

Particularly preferably, it may be provided that the least one tension element 1 is guided through a passage opening 31 of the first coupling part 21 and through a bushing opening 32 of the second coupling part 22, wherein the least one Zugele¬ment 1 essentially forms a loop.

Here, the tension element 1 may have a first portion 11, which leads to both Durchführungsöffnungen 31,32, wherein the tension element 1 is deflected in both Durchführungsöffnun¬gen 31,32. The second portion 12 of the tension element 1 leads from the Durchfüh¬ opening 31 of the first coupling part 21 in the direction of the second coupling part 22, which ends before reaching the second coupling part 22. Similarly, a third Teil¬stück 13 of the tension element 1 leads from the passage opening 32 of the second Kupplungsteiles22 in the direction of the first coupling part 21, which ends before reaching the first Kupp¬lungsteiles 21st The second portion 12 can then be connected to the third portion 13 in geeig¬neter manner. Such a preferred embodiment of the conductive wall element 6 is shown by way of example in FIG. By this loop, the Leit¬ wall element 6 can be made very reliable, and it is particularly easy to manufacture.

The connection of the second section 12 to the third section 13 can preferably take place in that these extend in sections parallel and overlapping each other. Here, the connection of the second section 12 with the third section 13 can take place via the concrete body 7.

Alternatively, the connection of the second portion 12 with the third portion 13 can be effected by a welded connection, for example by a butt weld.

Furthermore, one end of the second section 12 can be connected to one end of the third section 13 by a sleeve, in particular a threaded sleeve.

In an alternative embodiment, a predeterminable plurality of traction elements 1 may be provided in a guide wall element 6, the individual traction elements 1 being connected to a single coupling part 21, 22, wherein the individual traction elements 1 are interconnected within the concrete body 7.

Preferably, it can further be provided that the positive connection between the at least one tension element 1 and the at least one coupling part 2 is a screw connection 5. By the screw 5, a compact force transmission between the tension element 1 and the respective coupling part 2 can be achieved. A preferred Aus¬führungsform of the Leitwandelementes 6 with a screw 5 is exemplified in Fig. 3dargestellt.

In particular, it can be provided that the at least one tension element 1 has an external thread 51 at one end, and that the external thread 51 is screwed into a threaded receptacle 52 of the at least one coupling part 2. As a result, a particularly simple screw connection 5 can be produced, wherein a particularly good introduction of force between the tension element 1 and the coupling part 21, 22 can be achieved.

Alternatively, the positive connection may be a dovetail connection or a tongue and groove connection.

Particularly preferably, it can be provided that the least one coupling part 21, 22 is a cast part cast in a mold. This means that the coupling part 21,22 is poured discontinuously by means of a mold, and not continuously by means of continuous casting. The shape can be a lost form. Alternatively, the mold may be a permanent mold, with the coupling member being a mold casting. An advantage of an individually cast-molded casting is that it enables more freedom with respect to its three-dimensional formation than a continuously cast or rolled coupling part, in which the cross-section in one dimension is substantially constant. As a result, for example, a vertical passage opening 31, 32 can be formed, which can be difficult to image by continuous casting or rolling. Also, the shape of the coupling part 21,22 can be much better adapted to the expected force flow through the positive connection, for example by the formation of the Zugelementführungsauflage 4.Durch the formation of the coupling part 21,22 as a casting also has the advantage that the production can be more material-saving.

Claims (7)

1. baffle element (6) of a vehicle restraint system comprising a concrete body (7), wherein at least one tension element (1) is arranged in the concrete body (7), the at least one tension element (1) having at least one, at least partially, the concrete body (7). projecting, coupling part (21,22) is connected, wherein the at least one tensile element (1) and the at least one coupling part (21,22) are interconnected by means of a formschlüssi¬gen connection, wherein for the positive connection, the at least one coupling part (21,22 ) has a passage opening (31, 32), wherein the at least one tension element (1) is passed through the passage opening (31, 32), characterized in that the tension element (1) passed through the passage opening (31, 32) substantially around 180 ° is deflected. 2. baffle element (6) according to claim 1, characterized in that the at least one coupling part (21,22) has a at the passage opening (31,32) subsequent curved Zugelementführungsauflage (4), and that the Zugelementführungsauf¬lage (4) has a radius of curvature of at least 1 cm. 3. baffle element (6) according to claim 1 or 2, characterized in that - seen in Be¬triebslage - the passage opening (31,32) extends substantially vertically. 4. baffle element (6) according to one of claims 1 to 3, characterized in that seen in operating position - the passage opening (31,32) extends substantially horizontally and transversely to a longitudinal extent of the baffle element (6). 5. baffle element (6) according to one of claims 1 to 4, characterized in that the at least one tension element (1) through a passage opening (31) of a first coupling part (21) and through a passage opening (32) of a second Kupplungs¬teiles (22) is guided, wherein the at least one tension element (1) essentially forms a loop. 6. baffle element (6) according to one of claims 1 to 5, characterized in that the at least one coupling part (21,22) is a cast in a mold casting. A vehicle restraint system comprising a plurality of baffle elements (6) according to any one of claims 1 to 6, wherein the baffle elements (6) are coupled together by means of the coupling parts (21, 22).