EP1486614A1 - Guard rail - Google Patents

Abstract

The road safety barrier (1) has metal posts (5) with a wooden sleeving (8) and a horizontal beam supporting a circular section wooden baulk (7). There are trapezoidal brackets (11) which space the beam from the posts. the end plates (15) of the brackets engage in a C-section rail (16) on the rear of the beam, with flanges (22) to engage the baulk.

Description

The invention relates to a guard rail strand to be arranged next to one Roadway according to the features in the preamble of claim 1.

DE 195 17 933 A1 and DE 197 57 092 A1 include guard rail strands for arrangement next to a lane (on edge or Median strips) have become known, each in a row on the ground fixed metallic posts and at least one of the posts carried guide rail made of interconnected logs Include tree trunk sections. Such guardrail strands are said to are used particularly where roadways are rural areas, particularly forest areas, traverse so that they are of character are adapted to these areas. Since only round components are used, the human eye is given an appealing look, which leaves no disturbing impression in the application areas.

Although the well-known guardrail strands are quite in practice proven, they could not be varied so that they all Containment levels according to DIN EN 1317. The reason for this is in essential the fact that the guide rails above the post extend. Motor vehicles, in particular passenger cars, in one Approaching a guardrail line at an angle of approximately 20 ° can be achieved with the Front wheel areas get under the guide rails and thus frontally onto the Impact posts.

The state of the art also includes wooden guardrail constructions according to EP 0 606 305 B1 and the French patents 2,588,295, 2,589,176 and 2,765,252.

A further guard rail construction can be found in the brochure "NATUR-RAIL" SGGT Straßenausstattungen GmbH, Bahnhofstrasse 35-40, D-66564 Ottweiler, known. This guard rail construction corresponds to the containment level N2 according to DIN EN 1317.

But now there are also roadways that stretch along trees, which are arranged comparatively close to the lanes. Also on Such lanes (avenues) would like to have protective barrier constructions Build wood to do justice to the surrounding look. Here it is but showed that the positive effect of the so-called sack formation a guard rail in the event of a rear-end collision into the negative is reversed because the "soft" guardrail strand the impacting In principle, the vehicle hits a tree directly. Serious accidents with personal injuries were the result.

The object of the invention is based on the prior art based on a guardrail strand to be arranged next to a roadway create that not only visually in terms of its design, but also without difficulty the respective local, in particular spatial conditions given by trees perfectly adapted can be.

This object is achieved with the in the characterizing part of claim 1 specified features solved.

The invention now allows targeting where trees or others hereby comparable items, such as Pillars, a sack formation of the guardrail strand do not allow to stiffen the guardrail strand in such a way that he does not let a vehicle hit a tree or object, but catches the vehicle and forwards it. This stiffening can either only through longitudinal metal C-profiles on the Side of the logs facing away from the roadway and / or by a Corresponding number of posts that are close to each other to be ordered. Because the connection between the posts and the C-profiles jamming, this connection can be made at any point of a C profile. Also with such an arrangement the location of the root system of a tree is easily taken into account become.

The C-profiles are fixed to the logs with the screw bolts, with which also those that penetrate the logs in the longitudinal direction Reinforcement straps to be fixed to the logs. This is what it is about reinforcement belts in the form of steel bands, which are in Slots of the logs are embedded. These slots extend not over the entire diameter of the logs. At the same time they serve Reinforcement straps also connecting two in the longitudinal direction of the Guide bars consecutive logs. The reinforcement straps are there at one end of the logs opposite the end faces while they end at the other ends at the end faces there. Here you can Slits should be made slightly wider around the protruding ends of the Reinforcement straps can be inserted into the slots.

The connection of the C-profiles with the reinforcing straps can also do this be used to couple successive C-profiles together. This is achieved by short butt profiles, in particular C-shaped in cross section smaller cross-section to be used in the ends of the C-profiles used and screwed here.

A preferred definition of the end tabs of the spacers on the C-profiles takes place using the features of claim 2. Here the end flaps are on the outside of the flanges of the C-profiles. In the C profiles are counterholders, preferably in the form of short C-profiles, arranged, then the flanges of the C-profiles between the counterholders and the end plates are clamped in with a specific tightening torque can. As a result, there are relative movements between in an impact accident the spacers and the C-profiles possible, specifically under Taking into account the respective local conditions. So here is a certain elasticity behavior achieved, on the one hand by the constructive Design of the spacers and on the other hand due to the relocability of the Spacers relative to the C-profiles.

With regard to higher containment levels, it can correspond to the characteristics of claim 3 be useful between the C-profiles and Round wood to incorporate additional hollow metal profiles. These hollow profiles preferably have a rectangular cross section with rounded Longitudinal edges and are therefore aligned with the contour of the C-profiles. Your Length corresponds to the length of the C-profiles. The determination is made via Bolts that connect the C-profiles to the reinforcement straps become. Additional connection means are therefore not necessary. In the ends of the hollow profiles, smaller, short hollow profiles can be inserted in cross section to create butt joints.

Another additional stiffening of the guard rail strand according to the invention is seen in the features of claim 4. This Support strips can be flat or adapt to the curvature of the Adjust the surfaces of the logs. They are preferred on the long edges the C-profiles or the hollow profiles welded, which are adjacent to the Logs. The logs then experience a kind of channel-like embedding, formed by the C-profiles or the hollow profiles and with these connected slats.

According to claim 5, protectors can be made on the C-profiles an elastic material. With the help of this on a tree Protectors that come into contact are on the one hand the damping of an impact possible and on the other hand the protection of this neighboring tree. The Protectors can be made of rubber or a suitable plastic. They are preferably releasably attached to the C-profiles. The attachment can according to the clamping fastening of the end plates of the spacers done on the C-profiles.

In special lengths of a guardrail line, it can be Claim 6 make sense, one below the guide rail made of logs metal spars composed of individual shots C-shaped To provide cross-section. This metal spar is then made up of buffers short pipe sections are formed with in particular a vertical axis fix the post with bolts. Such a metal spar serves especially the protection of fallen bikers and also prevents that two-wheelers (motorcycles) with the front wheels under the guide rails can reach.

The posts expediently have a C-shaped cross section. Also a sigma-shaped cross section is conceivable. The C-shaped cross section is on the side facing away from the carriageway. To the guardrail strand in If necessary, these areas can be additionally reinforced by applying the features of claim 7 be useful in this C-shaped trained posts further additional posts, also with a C-shaped Cross-section to use, but these additional posts by 90 ° in the horizontal Are rotated.

Figur 1

im Schema in der Draufsicht einen Schutzplankenstrang neben einer Fahrbahn im Bereich eines Baums;

Figur 2

in vergrößerter perspektivischer Darstellung einen Längenabschnitt des Schutzplankenstrangs der Figur 1 von der Fahrbahn her in Richtung des Pfeils II gesehen;

Figur 3

in perspektivischer Darstellung eine rückwärtige Ansicht des Längenabschnitts der Figur 2 in Richtung des Pfeils III gesehen;

Figur 4

eine Stirnansicht auf die Darstellung der Figur 2 in Richtung des Pfeils IV gesehen;

Figur 5

eine Draufsicht auf einen Stoßbereich von zwei Rundhölzern in Richtung des Pfeils V der Figur 4 gesehen;

Figur 6

eine Darstellung ähnlich derjenigen der Figur 4 gemäß einer weiteren Ausführungsform;

Figur 7

eine Darstellung ähnlich derjenigen der Figur 4 gemäß einer dritten Ausführungsform;

Figur 8

eine Darstellung ähnlich derjenigen der Figur 4 gemäß einer vierten Ausführungsform und

Figur 9

eine perspektivische Darstellung eines Längenabschnitts eines Schutzplankenstrangs gemäß einer weiteren Variante.

The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawings. Show it:

Figure 1

in the diagram in plan view a guard rail strand next to a road in the area of a tree;

Figure 2

seen an enlarged perspective view of a length section of the guardrail strand of Figure 1 from the road in the direction of arrow II;

Figure 3

seen in perspective a rear view of the longitudinal section of Figure 2 in the direction of arrow III;

Figure 4

seen an end view of the illustration of Figure 2 in the direction of arrow IV;

Figure 5

a plan view of a joint area of two logs seen in the direction of arrow V of Figure 4;

Figure 6

a representation similar to that of Figure 4 according to another embodiment;

Figure 7

a representation similar to that of Figure 4 according to a third embodiment;

Figure 8

a representation similar to that of Figure 4 according to a fourth embodiment and

Figure 9

a perspective view of a longitudinal section of a guard rail strand according to a further variant.

1 in FIG. 1 is a guardrail strand next to a carriageway 2 designated. The roadway 2 is part of, for example, an alley Street on which there are trees 3 on the side. A tree is in the horizontal cross section with indicated roots 4 illustrated.

The guardrail strand 1 has a plurality of posts 5 fixed to the floor Steel with a C-shaped cross section and a horizontal guide bar 6 round logs 7 stacked together.

As can be seen in more detail when viewing Figures 2 to 4 together give, each post 5 on the side facing the lane 2 and on the sides pointing in the longitudinal direction of the guide rail 6 with a one-piece Wood casing 8 provided. At the upper end 9 is the wooden casing 8 spared. In this area, the web 10 is designed to be trapezoidal steel spacer 11 screw-fastened. Each bolt 12 (Figure 3) penetrates the web 10, the wooden casing 8 and the Web 13 of the post 5. The inclined legs 14 of each spacer 11 end in end plates 15, which are in a vertical plane extend. The end tabs 15 serve the clamping connection of the Spacer 11 with a steel C-profile 16 on the road 2 facing away from the flattened back 17 of each log 7 in the following is attached in more detail. The end tabs 15 are from Bolt 18 passes through, which at the same time, as in particular the FIG. 4 reveals a C-shaped counterholder 19, which is in the C-profile 16 is longitudinally displaceable. Using the bolts 18 and nuts 20 can therefore the flanges 21 of the C-profile 16 between the end plates 15th and the counter supports 19 with the setting of a specific tightening torque be clamped fixed.

At the rounded longitudinal edges of the C-profile 16 facing the roadway 2 are flat steel support strips 22 welded so obliquely that by Support strips 22 and the web 23 of the C-profile 16 a channel-like receptacle for the log 7 is formed.

In the log 7 there is a vertically aligned slot 24, which in the lower peripheral area of the round timber 7 begins and in the upper height area of the round timber 7 ends. A reinforcing belt 25 is in this slot 24 used in the form of a steel band. The reinforcement belt 25 is on one End face 26 of the log 7 before and ends at the other end of the Round timber 7 on the front face 27 there (FIG. 5). In the area of the front 27, the slot 24 is widened to the protruding tongue 28 of the Reinforcement belt 25 with the end portion 29 of the slot 24 ending Reinforcement belt 25 to connect.

To fix the reinforcement belt 25 in the log 7 and Connection of the C-profile 16 with the round timber 7 or with the reinforcement belt 25 bolts 30 and nuts 31 are provided. To do this are in the web 23 of the C-profile 16, in the round timber 7 and in the reinforcement belt 25 correspondingly aligned, unspecified bores.

It can also be seen from FIGS. 2 and 3 that in the joint area of two successive C-profiles 16 with a short C-shaped cross section Butt profiles 32 are provided, also using the above mentioned bolts 30 and nuts 31 together with a C-profile 16th be fixed on the log 7 and on the reinforcement belt 25.

Instead of the flat support strips 22 according to Figures 2 to 4 can also the curvature of the surfaces 33 of the round timbers 7 adapted support strips 34 can be applied according to the embodiment of FIG. 6. Otherwise 6 corresponds to that of FIG. 4, so that of a further description is refrained from.

FIG. 7 shows an embodiment without straight support strips 22 or curved ones Support strips 34. In addition, this embodiment is with identical to that of FIG. 4.

In the figure 8, an embodiment is shown in which between the C-profiles 16 and the round timbers 7 of a guardrail strand 1 in cross section rectangular hollow profiles 35 are incorporated. These hollow profiles 35 fixed together with the C-profiles 16 on the logs 7. At this Embodiment can, as shown, level to the hollow profiles 35 Support strips 22 are welded. The support strips 34 can also be curved, as illustrated in Figure 6. You can also drop out. Otherwise, the embodiment in FIG. 8 corresponds to that in FIG. 4.

If a tree 3 is located directly next to a protective barrier strand 1, A protector 36 can be used to protect and / or dampen the impact a C-profile 16 are releasably attached (Figures 1 to 3). Such a Protector 36 consists, for example, of a triangular cross section Hollow profile made of plastic. Like the end flaps 15 of the spacers 11 to be clamped to the flanges 21 of the C-profiles 16.

FIG. 1 also shows that the posts 5 thus have the guide bar 6 can be coupled that the concerns of nature, especially the Root system 4 of a tree 3, can be taken into account. The distance of two posts 5 is freely variable.

FIG. 9 shows an embodiment in which beneath the guide rail 6 a metal beam 37 C-shaped cross section consisting of individual shots incorporating buffers formed from pipe sections 38 the post 5 is set. The pipe sections 38 here in the Cross section of the metal spar 37 a. Two successive metal bars 37 like the C-profiles 16, with the help of short C-profiles with a smaller cross section 39 and using bolts and nuts with each other coupled.

Ultimately, it can also be seen from FIG. 9 that for further stiffening a guardrail strand 1 a into the posts 5 additional posts 40 with a C-shaped Cross section can be used. However, these are 90 ° in horizontally offset. These additional posts will be 40 together with the posts 5 with the webs 10 of the spacers 11 Bolt 41 connected.

REFERENCE NUMBERS

1 -

A protective barrier

1a -

A protective barrier

2 -

roadway

3 -

tree

4 -

Roots of 3

5 -

post

6 -

Leitholm

7 -

logs

8th -

wood casing

9 -

upper end of 8th

10 -

Steg v. 11

11 -

spacer

12 -

bolts

13 -

Steg v. 5

14 -

Thigh v. 11

15 -

end flaps

16 -

C-section

17 -

Back v. 7

18 -

Bolts on 15

19 -

Counterhold in 16

20 -

Nuts on 18

21 -

Flanges from 16

22 -

Support strips on 16

23 -

Steg v. 16

24 -

Slot in 7th

25 -

reinforcing belt

26 -

Front of v. 7

27 -

Front of v. 7

28 -

Tongue v. 25

29 -

End section v. 25

30 -

bolts

31 -

nuts

32 -

Butt profiles v. 16

33 -

Surfaces v. 7

34 -

support strips

35 -

hollow sections

36 -

protector

37 -

metal Holm

38 -

pipe sections

39 -

C-sections

40 -

additional post

41 -

bolts

Claims (7)

Guardrail strand to be arranged next to a carriageway (2), which has a plurality of vertical metallic posts (5) fixed to the floor, at least partially provided with wooden sheathing (8), and a horizontal guide rail (6) made of round logs (7) stacked together, whereby between the Round wooden members (7) penetrated in the longitudinal direction by a metallic reinforcement belt (25) and the posts (5) trapezoidally shaped metallic spacers (11) with end plates (15) are detachably integrated, characterized in that the end plates (15) of the spacers (11) are clamped to metallic C-profiles (16), which extend on the sides of the logs (7) facing the posts (5) and in the joint area of the logs (7) with one another and with the reinforcing straps (25) in the logs (7 ) are screwed. Protective plank strand according to claim 1, characterized in that the end flaps (15) of the spacers (11) are screwed to counter-supports (19) which can be displaced in the longitudinal direction in the C-profiles (16) while clamping the flanges (21) of the C-profiles (16) are. Guard rail strand according to claim 1 or 2, characterized in that between the C-profiles (16) and the round timbers (7) metallic hollow profiles (35) are incorporated. Protective plank strand according to one of Claims 1 to 3, characterized in that the C-profiles (16) or the hollow profiles (35) are attached to the surfaces (33) of the logs (7) above and below the C-profiles (16) or the hollow profiles (35) that come into contact with support strips (22, 34) are provided. Guardrail strand according to one of the claims 1 to 4, characterized in that protectors (36) made of an elastic material are attached to the C-profiles (16). Protective plank strand according to one of Claims 1 to 5, characterized in that a metal spar (37) C-shaped cross section consisting of individual sections is fixed below the guide spar (6) with the incorporation of buffers formed from pipe sections (38) on the posts (5) , Protective plank strand according to one of Claims 1 to 6, characterized in that, in the case of posts (5) with a C-shaped cross section, additional posts (40) with a C-shaped cross section offset in the horizontal by 90 ° are incorporated into the posts (5).

Images