AT515842A1 - 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 ), coupling part (21, 22) is connected, it is proposed 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.

Description

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

Conventional baffle members include a concrete body and traction members with coupling members to form a vehicle restraint system that is integral with the prefabricated baffle members. In the design of the vehicle restraint system, a plurality of baffle elements are stacked end to end and connected together. The vehicle restraint system serves to restrain impacting vehicles, wherein the coupled-together tensile elements form a continuous drawstring which prevents the vehicle from breaking the vehicle restraint system. Here, in conventional baffle elements, the tension members and the coupling members are welded together.

The disadvantage of this is that particularly stringent requirements are placed on this welded connection, since the health of the vehicle occupants largely depends on their reliable functioning in the event of a collision of a vehicle. Care should be taken in particular that failure of this welded joint is not caused by a notch effect. Often, the tensile members and the coupling members are formed from materials of different grades and / or different surface finish, thereby making the formation of a reliable welded joint very expensive.

The object of the invention is therefore to provide a baffle element of a vehicle restraint system of the type mentioned, with which the mentioned disadvantages can be avoided, which can be simple and yet ensures a reliable and reliable function.

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

This has the advantage that the baffle element can be made simple and nevertheless reliable, since no complicated welded connection is necessary any more, whereby the risk of a defective welded joint can be ruled out. Furthermore, in choosing the materials of the coupling parts and the at least one tension member does not have to be a good

Weldability be respected. 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 transmission 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 tensile member is surrounded by the concrete body, there is no fear of the positive connection becoming loose with 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 further described 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 side wall element in axonometric view;

Figure 2 is a part of a second preferred embodiment of a conduction member in axonometric view;

Fig. 3 is a part of a third preferred embodiment of a conducting wall element in axonometric view;

Figure 4 is a part of a fourth preferred embodiment of a conduction member in axonometric view; and

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

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 with at least one, at least partially protruding from the concrete body 7, Coupling part 21,22verbunden.

The baffle element 6 is part of a vehicle restraint system, whereby the side wall element 6 can be designed in particular as a finished part, preferably as a precast concrete part, which is preferably prefabricated and can subsequently be brought to the place of use. The baffle element 6 may in particular be designed to be arranged next to a road or between two carriageways.

The baffle element 6 has a concrete body 7, which is intended to receive the impact pulse. The concrete body 7 may be made of concrete or a mixture of concrete. The concrete body 7 may 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 shown in FIGS. 1 to 4 not shown.

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 tensile element 1 can be cast in the concrete body 7. The at least one tensile element 1 may in particular be made of metal, preferably of steel, in particular of reinforcing steel. Since the tension element 1 is protected against environmental influences by the concrete body 7, the tension element 1 can in particular be designed to be free from a surface finish, for example a non-galvanized steel.

The at least one tension element 1 can hereby be a reinforcing bar or 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, the coupling part 21, 22 being intended to be coupled to a coupling part 21, 22 of another side wall element 6 in order to connect the tension elements 1 of FIGS individual Leitwandelemente 6 to connect to a continuous drawstring.

Such a baffle element 6 is ideally illustrated in FIG. 5, wherein the parts arranged within the concrete body 7 are shown in dashed lines.

It is provided that the at least one pulling 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 form closure can take place in particular with respect to a tensile loading of the connection in the direction of a longitudinal extent of the guide wall element 6. The positive connection therefore differs from a material-locking connection, in which the connection is generated by molecular forces, or a pure frictional connection.

This results in the advantage that the baffle element 6 can be formed easily and nevertheless reliably, since no complicated welded connection is necessary, whereby the risk of a defective welded connection can be excluded. Further, in selecting the materials of the coupling parts 21, 22 and the at least one tension member 1, it is not necessary to pay attention to good weldability. By means of the positive connection, a reliable connection can be achieved from the at least one tension element 1 to the at least one coupling part 21, 22, which is simple and reliable, wherein the introduction of force between the tension element 1 and the coupling part 21, 22 can be well specified, and in particular over a large area. Since the tension element 1 is surrounded by the concrete body 7 weiters also not the risk that the positive connection with the Zeitlockert.

Preferably, there may be provided a vehicle restraint system including a plurality of guide wall members 6, the guide wall members 6 being coupled together by means of the coupling members 21, 22. In this case, coupling parts 21, 22, which are connected to the coupling part 21, 22 of the adjacent guide wall element 6, are shown in FIGS. 1 to 3.

Preferably, it can be provided that the baffle element 6 has a coupling part 21, 22 at both ends, wherein a first coupling part 21 is particularly preferably 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. Hereinbefore For example, the first coupling part 21 may protrude from the first end wall of the concrete body 7, and / or the second coupling part 22 may protrude from the second end wall of the concrete body 7.

The coupling parts 21, 22 may each have, in particular, an exposed contact surface provided for contacting the other coupling part 21, 22, in other words, the contact surface is not surrounded 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 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 designed to engage the coupling receptacle 24 and thus form a releasable form-fitting 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 can have a constant cross-section, in particular in the vertical. As a result, several such baffle elements 6 can be formed into a vehicle restraint system.

Alternatively, it can 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, which engages in both coupling receptacle24. Here, it may be preferable that the first coupling part 21 and the second coupling part 22 are sunk 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 first fixed by the concrete body 7. This eliminates the step in which the pulling 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 directly connected to one another in an interlocking manner. This direct positive connection means that the positive connection is formed without bolts, rivets, additional screws and the like, but that the tension member 1 and the coupling part 21, 22 are formed to form the positive connection on 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 pulling element 1 is passed through the passage opening 31, 32. The passage opening 31, 32 may in this case in particular run substantially orthogonally to the longitudinal extent of the guide wall element 6. In a tensile load of the tension element 1, the tension element 1 arranged in the through-opening 31, 32 can transmit 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.

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 pulling element 1, which is made through the through-opening 31, 32, is deflected essentially by 180 °. In this case, the tension 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. This eliminates a conclusion of the tension element 1 in the region of the coupling part 21,22, since the tension element 1 is first led away to the coupling part 21,22 and then again. As a result, no special design of the tensile element 1 is necessary, since it is sufficient for the formation of the positive connection to pass the tension element 1 through the passage opening 31, 32.

In particular, it can be provided that at least one coupling part 21, 22 has a curved guide element guide 4 adjoining another through opening 31, 31, and that the guide plate guide element 4 has a radius of curvature of at least 1 cm. Preferably, the radius of curvature may be at least 3 cm, more preferably at least 5 cm. By this Zugelementführungsauflage 4, a good force introduction of the tension element 1 can be achieved on the coupling part 21,22, which prevents that the tension element 1 is kinked. Furthermore, puller guide pad 4 may be advantageous when using a rod-shaped puller element 1, as puller guide pad 4 assists in bending the puller element 1 in the manufacture of the connection.

It can preferably be provided that-seen in the operating position-the through-opening 31, 32 runs substantially vertically. In other words, the 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 from the pulling element 1 to the coupling part 21, 22 can extend over the entire height, and in particular also the coupling extension 23 and the coupling receptacle 24 can be designed 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. A passage opening 31, 32 formed in this way is shown in FIGS. 2 and 4.

Furthermore, it may be provided that - seen in the operating position - the through-opening 31, 32 runs essentially horizontally and transversely to the longitudinal extension of the guide wall element 6. In other words, the passage opening 31, 32 can run transversely to the longitudinal extension of the side 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. Such a passage opening 31, 32 is shown in FIG.

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

In this case, preferably, each tension element 1 can be provided for continuous arrangement in the concrete body 7, wherein in particular each tension element 1 connects the coupling part 21, 22 to one another.

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 through-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 two through-feed openings 31,32, wherein the tension element 1 is deflected in both feed-through openings 31,32. The second portion 12 of the tensile 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. Likewise, a third section 13 of the pulling element 1 leads from the lead-through opening 32 of the second coupling part 22 in the direction of the first coupling part 21, ending before reaching the first coupling part 21. The second portion 12 may then be connected to the third portion 13 in a suitable manner. A preferred embodiment of the baffle element 6 designed in this way is shown by way of example in FIG. 4. By this loop, the baffle member 6 can be made particularly reliable, and it is particularly easy to manufacture.

The connection of the second section 12 to the third section 13 may preferably be effected by extending them in sections parallel to each other and overlapping each other. In this case, 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 to the third portion 13 may be by a welded joint, 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 tensile elements 1 may be provided in a baffle element 6, wherein the individual tensile elements 1 are connected to a maximum of a single coupling part 21, 22, wherein the individual tensile elements 1 are interconnected within the concrete body 7.

Preferably, it can further be provided that the positive connection between the at least one pulling element 1 and the at least one coupling part 2 is a screw connection 5. Due to the screw connection 5, a compact introduction of force between the tension element 1 and the respective coupling part 2 can be achieved. A preferred embodiment of the conductive wall member 6 with a screw connection 5 is exemplified in Fig. 3d.

In particular, it can be provided that the at least one pulling 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. This makes it possible to produce a particularly simple screw connection 5, with a particularly good introduction of force between the tension member 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 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 is substantially constant in one dimension. As a result, for example, a vertical passage opening 31, 32 can be formed, which can only be imaged by continuous casting or rolling. Also, the shape of the coupling part 21,22 can be adapted much better to the expected force flow through the positive connection, for example by the formation of the tension member guide pad 4. The formation of the coupling part 21,22 as a casting also has the advantage that the production can be more material-saving ,

claims:

Claims (11)

1. A 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), wherein the at least one tension element (1) comprises at least one, at least partially, concrete body (7) ), the 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 connected to one another by means of a positive connection. Second baffle element (6) according to claim 1, characterized in that for the positive connection at 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) has 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) extends substantially horizontally and transversely to a longitudinal extent of the guide element (6). Guiding wall element (6) according to one of claims 2 to 6, characterized in that at least one tension element (1) is guided through a feedthrough opening (31) of a first coupling part (21) and through a feedthrough opening (32) of a second coupling part (22), wherein at least one tension member (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). The baffle element (6) according to claim 8, characterized in that the at least one tension element (1) has an external thread (51) at one end, and that the external thread (51) fits into 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 molded casting. 11. A vehicle restraint system comprising a plurality of baffle elements (6) according to any one of claims 1 to 10, wherein the baffle elements (6) are coupled together by means of the coupling parts (21, 22).