WO2015188206A1

WO2015188206A1 - Barrier element of a vehicle restraint system

Info

Publication number: WO2015188206A1
Application number: PCT/AT2015/000086
Authority: WO
Inventors: Alexander Barnas; Thomas Edl; Franz Spitzer
Original assignee: Kirchdorfer Fertigteilholding Gmbh
Priority date: 2014-06-13
Filing date: 2015-06-10
Publication date: 2015-12-17
Also published as: HRP20180929T1; AU2015274218A1; HUE038083T2; TR201807855T4; AT515842A1; IL248849A0; SI3155173T1; AT515842B1; ES2674824T3; EP3155173A1; EP3155173B1

Abstract

The invention relates to a barrier 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) is connected to at least one coupling part (21, 22) protruding from the concrete body (7) at least in some regions. According to the invention the at least one tension element (1) and the at least one coupling part (21, 22) are connected to each other by means of a positive-locking connection.

Description

Guide wall element of a vehicle restraint system

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 and traction elements with coupling parts to from the prefabricated baffle elements a

form continuous vehicle restraint system. In the formation of the vehicle restraint system a plurality of Leitwandelemente are lined up frontally and connected to each other. The vehicle restraint system serves to restrain impacting vehicles, wherein the coupled traction elements form a continuous drawstring, which prevent the vehicle from breaking through the vehicle restraint system. Here are at

conventional baffle elements, the tension elements and the coupling parts welded together.

The disadvantage of this is that particularly high demands on this

Welded connection are made because the health of the vehicle occupant largely depends on the reliable functioning of the impact of a vehicle. Particular care should be taken to ensure that failure of this weld is not caused by a notch effect. Often the tension elements and the coupling parts are formed from materials of different quality and / or different surface finish, whereby the formation of a reliable welded connection is very expensive.

The object of the invention is therefore a baffle element of a

Specify vehicle restraint system 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 made simple yet reliable, since no complex welded connection is more necessary, the risk of a defective weld can be excluded. Furthermore, in the choice of materials the Coupling parts and the at least one tension element not on a good

Weldability be respected. By the positive connection, a reliable connection of the at least one tension element can be achieved with the at least one coupling part, which is simple and reliable, 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. Furthermore, since the tension member is surrounded by the concrete body, there is no danger of the positive connection becoming loose over time.

The subclaims relate to further advantageous embodiments of the invention.

It is hereby expressly referred 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. Showing:

Fig. 1 shows a part of a first preferred embodiment of a

Leitwandelementes in axonometric representation;

Fig. 2 is a part of a second preferred embodiment of a

Leitwandelementes in axonometric representation;

Fig. 3 shows a part of a third preferred embodiment of a

Leitwandelementes in axonometric representation;

Fig. 4 shows a part of a fourth preferred embodiment of a

Leitwandelementes in axonometric representation; and

Fig. 5, the fourth preferred embodiment of a baffle element as an idealized representation in side view.

FIGS. 1 to 5 show at least parts of preferred embodiments of a baffle 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 protruding from the concrete body 7, coupling part 21, 22 is connected.

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

The baffle element 6 has a concrete body 7, which is intended to receive the impact pulse. The concrete body 7 may consist of concrete or a concrete mixture. The concrete body 7 may in this case have on the bottom of a footprint 71. 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 in particular can run continuously in the concrete body 7, and in the event of an impact should absorb the tensile forces acting on the concrete body 7. The at least one tension element 1 can be cast in the concrete body 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 through the concrete body 7 before

Protected against environmental influences, the tension element 1 can be designed, in particular, free from a surface finish, for example an unpainted steel.

The at least one tension element 1 can in this case be a reinforcing bar or a reinforcing rope.

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 is provided with a coupling part 21, 22 of another

Baffle element 6 to be coupled to connect the tension elements 1 of the individual Leitwandelemente 6 to a continuous drawstring.

Such a baffle element 6 is idealized in the Fig. 5, wherein the inside 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 compound in which forces and movements are transmitted substantially perpendicular to a plane of contact by the shape of the parts involved in the connection. Here, the positive connection in particular with respect to a tensile loading of the connection in the direction of a longitudinal extension of the baffle element 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 made simple yet reliable, since no complex welded connection is necessary, the risk of a defective weld can be excluded. Furthermore, care must be taken in the choice of materials of the coupling parts 21, 22 and at least one tension element 1 on a good weldability. Due to the positive connection, a reliable connection of the at least one tension element 1 with the at least one coupling part 21, 22 can be achieved, which is simple and reliable, wherein the force introduction between the tension element 1 and the coupling part 21, 22 can be well specified, and especially over a large area can take place. Further, since the tension member 1 is surrounded by the concrete body 7, there is no danger of the positive connection becoming loose with time.

Preferably, a vehicle restraint system comprising a plurality of

Baffle elements 6 may be provided, wherein the baffle elements 6 are coupled together by means of the coupling parts 21, 22. 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.

It may preferably be provided that the guide wall element 6 has a coupling part 21, 22 at both ends, wherein a coupling part is particularly preferred 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. Here, 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.

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

The coupling parts 21, 22 may in particular comprise a corrosion-resistant material, in particular a corrosion-resistant steel and / or a

Corrosion-resistant surface coating, preferably in the form of a galvanizing.

Furthermore, it can be provided that the first coupling part 21 a

Coupling extension 23, that the second coupling part 22 a

Coupling receptacle 24 has, and that the coupling extension 23 is formed to engage in the coupling receptacle 24 and so form a releasable positive connection. The coupling extension 23 may preferably from the

Concrete body 7 protrude, wherein the coupling receptacle 24 is recessed 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 direction. As a result, a plurality of such baffle elements 6 can be formed into a vehicle restraint system.

Alternatively, it may be provided that the first coupling part 21 and the second coupling part 22 have a coupling receptacle 24, and that an additional coupling piece is provided for the coupling that engages in both coupling receptacle 24. In this case, it may be preferred that the first coupling part 21 and the second coupling part 22 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 concrete body 7. This eliminates the step in which the tension member 1 or the coupling part 21, 22 would have to be deformed to make the connection.

Furthermore, it can preferably be provided that the at least one tension element 1 and the at least one coupling part 2 are connected to one another in a form-fitting manner. This direct positive connection means that the positive connection without bolts, rivets, additional screws and the like is formed, but that the tension element 1 and the coupling part 21, 22 are formed such that they form the positive connection at 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 the 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 the tension element 1, in the

Passage opening 31, 32 arranged tension element 1 forward the tensile load directly to the coupling part 2. 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 each pulling element 1 connected to the coupling part 21, 22.

Particularly preferably, it can be provided that the through the

Passage opening 31, 32 performed tension element 1 is deflected substantially by 180 ^° . Here, the tension element 1, in the direction of

Longitudinal extent of the baffle element 6 extending, first portion 1 1 and have a second portion 12, wherein between the first portion 11 and the second portion 12, the tension element 1 in the passage opening 31, 32 is deflected. This eliminates a conclusion of the tension element 1 in the region of the coupling part 21, 22, since the tension element 1 to the coupling part 21, 22 first out and then led away again. As a result, no special design of the tension element 1 is necessary because it is for the formation of positive

Connection is sufficient, the tension element 1 through the passage opening 31, 32 perform.

In particular, it may be provided that at least one coupling part 21, 22 has a curved one adjoining the lead-through opening 31, 31

Zugelementführungsauflage 4, and that the Zugelementführungsauflage 4 has a radius of curvature of at least 1 cm. Preferably, the

Radius of curvature at least 3 cm, more preferably at least 5 cm. By this Zugelementführungsauflage 4 a good introduction of force from the tension member 1 can be achieved on the coupling part 21, 22, wherein it is prevented that the tension element 1 is kinked. Furthermore, can

Zugelementführungsauflage 4 be advantageous when a rod-shaped tension member 1 is used, since the Zugelementführungsauflage 4 a bending of the

Tensile element 1 supported in the preparation of the connection.

Preferably, it may be provided that - seen in the operating position - the

Through opening 31, 32 extends substantially vertically. The

In other words, through-opening 31, 32 may extend substantially orthogonally to the contact surface 71 of the concrete body 7. This results in the advantage that the power transmission can extend from the tension member 1 to the coupling part 21,22 over the entire height, in particular, the coupling extension 23 and the coupling receptacle 24 may be formed to transmit the forces 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. Such a trained passage opening 31, 32 is shown in Figs. 2 and 4.

Furthermore, it can be provided that - seen in operating condition - the

Feedthrough opening 31, 32 substantially horizontally and transversely to the Longitudinal extent of the baffle element 6 extends. The passage opening 31, 32 may in other words transverse to the longitudinal extent of the

Leitwandelementes 6 and parallel to the contact surface 71 of the concrete body 7 extend. This results in the advantage that the coupling part 21, 22 can be easily manufactured as a rolling or Sranggussteil. Such a trained through opening 31, 32 is shown in FIG.

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

In this case, preferably, each tension element 1 may be provided for the continuous arrangement in the concrete body 7, wherein in particular each tension element 1 the

Coupling part 21, 22 interconnects.

Particularly preferably, it can 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 passage opening 32 of the second coupling part 22, wherein the least one tension element 1 essentially forms a loop.

Here, the tension element 1 may have a first portion 11, which leads to both passage openings 31, 32, wherein the tension element 1 is deflected in both passage openings 31, 32. The second section 12 of the

Tension element 1 leads from the passage 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. Analog leads a third section 13 of the

Tension element 1 of the passage opening 32 of the second coupling part 22 in the direction of the first coupling part 21, wherein this ends before reaching the first coupling part 21. The second portion 12 may then be connected to the third portion 13 in a suitable manner. Such a preferred embodiment of the baffle element 6 is shown by way of example in FIG. By this loop, the baffle element 6 can be particularly

be formed reliably, and it is particularly easy to manufacture. The connection of the second portion 12 with the third portion 13 may preferably be effected in that these extend in regions parallel to each other and overlapping each other. In this case, the connection of the second section 12 with the third section 13 can be made via the concrete body 7.

Alternatively, the connection of the second portion 12 with the third

Section 13 by a welded connection, for example by a butt weld.

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

In an alternative embodiment, a predeterminable plurality of

Tension elements 1 may be provided in a baffle element 6, wherein the individual tension elements 1 are connected to a maximum of a single coupling part 21, 22, wherein the individual tension 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 5. Through the screw 5, a compact force application between the tension element 1 and the respective coupling part 2 can be achieved. A preferred embodiment of the

Leitwandelementes 6 with a screw 5 is exemplified in Fig. 3.

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

Clutch part 21, 22 is poured discontinuously by means of a mold, and not continuously by 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 casting is that it allows more freedom in terms of its three-dimensional design 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 are 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. By forming the coupling part 21, 22 as a casting also gives the advantage that the production can be more material-saving.

Claims

P A T E N T A N S P R E C H E

, Leitwandelernent (6) of a Fanraufrückhaltesystems 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 projecting from the concrete body (7) , Coupling part (21, 22) is connected, characterized in that the at least one tension element (1) and the at least one coupling part (21, 22) are interconnected by means of a positive connection.

2. baffle element (6) according to claim 1, characterized in that for the positive connection the least one coupling part (21, 22) has a passage opening (31, 32), and that the at least one tension element (1) through the passage opening (31 , 32) is performed.

3. baffle element (6) according to claim 2, characterized in that the through the passage opening (31, 32) performed tension element (1) is deflected substantially by 180 °.

4. baffle element (6) according to claim 2 or 3, characterized in that the least one coupling part (21, 22) has a at the passage opening (31, 32) subsequent curved Zugelementführungsauflage (4), and that the Zugelementführungsauflage (4) a Radius of curvature of at least

1 cm.

5. baffle element (6) according to one of claims 2 to 4, characterized in that - seen in the operating position - the passage opening (31, 32) extends substantially vertically.

6. baffle element (6) according to one of claims 2 to 4, characterized in that - seen in the operating position - the passage opening (31, 32) substantially horizontally and transversely to a longitudinal extent of the

Leitwandelementes (6) extends.

7. baffle element (6) according to one of claims 2 to 6, characterized in that the least one tension element (1) by a

Through opening (31) of a first coupling part (21) and by a

Through opening (32) of a second coupling part (22) is guided, wherein the least a tension element (1) substantially forms a loop.

8. baffle element (6) according to claim 1, characterized in that the positive connection between the at least one tension element (1) and the at least one coupling part (21, 22) is a screw connection (5).

9. baffle element (6) according to claim 8, characterized in that the at least one tension element (1) at one end an external thread (51), and that the external thread (51) in a threaded receptacle (52) of the at least one coupling part (21 , 22) is screwed.

10. baffle element (6) according to one of claims 2 to 9, characterized in that the least one coupling part (21, 22) is a cast in a mold casting.

11. A vehicle restraint system comprising a plurality of baffle elements (6) according to one of claims 1 to 10, wherein the baffle elements (6) by means of the coupling parts (21, 22) are coupled together.