EP1486615B1 - A safety barrier assembly - Google Patents

Abstract

The protective barrier (1), to line a road traffic lane, has a number of vertical metal posts (5) with at least a partial wood cladding (8), and a horizontal beam (6) of round wood components (7) butted together. A reinforcement metal girder (25), with a hollow profile, runs longitudinally through a slit (24) in the round wood sections. The girder and the posts are integrated by trapezoid metal spacers (11), with end tabs (15) in a clamped fit at metal C-profiles (16), bolted together at the girder into round wood beams at the butts between them. Protective bars (22) can be at the C-profiles to reinforce the mounting positions of the round wood beams sections.

Description

The invention relates to a protective barrier for the arrangement next to a roadway according to the features in the preamble of claim 1.

Such a protective barrier construction is known from the brochure "NATUR-RAIL" of SGGT Straßenausstattungen GmbH, Bahnhofstraße 35-40, D-66564 Ottweiler. This protective barrier construction corresponds to containment level N2 according to DIN EN 1317.

In the scope of DE 195 17 933 A1 and the DE 197 57 092 A1 Protective strands for arrangement next to a roadway (on edge or median strip) have become known, each comprising a plurality of fixed in a row on the ground metallic posts and at least one supported by the post Leitholm of interconnected logs made of tree trunk sections. Such protective barrier strands should be used in particular where lanes pass through rural areas, in particular forest areas, so that they are adapted to these areas in terms of character. 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 protective barrier strands have proven themselves in practice, they still could not be varied to meet all containment levels according to DIN EN 1317. The reason for this is essentially the fact that the guide rails extend above the posts. Motor vehicles, in particular passenger cars, which start at an angle of about 20 ° a guard rail, can get with the front wheel under the Leitholme and thereby bounce frontally on the post.

The prior art also includes wooden guard rail structures according to the EP 0 606 305 B1 as well as the French Patents 2,588,295 . 2 589 176 and 2,765,252 ,

But there are also lanes that extend along trees that are arranged comparatively close to the lanes. Also on such lanes (avenues) would like to build protective wooden structures, which are not only the ambient look, but also an increased traffic in the form of trucks. Here, however, it has been shown that the positive effect of the so-called bagging of a protective barrier in the event of a rear-end collision is reversed to the negative, because the "soft" barrier rail allows the impacting vehicle in principle to bounce directly onto a tree. Serious accidents with personal injury were the result.

The invention is - based on the state of the art - the task of creating a protective barrier for arrangement next to a roadway, not only of its design visually to the environment, but also without difficulty the respective local, in particular given by trees, spatial conditions can be properly adapted to a heavy traffic on trucks.

This object is achieved with the features stated in the characterizing part of patent claim 1.

The invention now makes it possible to target specifically where trees or other objects comparable thereto, e.g. Pillars, a sacking of the guardrail strand does not allow the guardrail strand stiffen so that he does not bounce a vehicle, but especially a truck, not on a tree or the object, but the vehicle catches and forwards. This stiffening is achieved on the one hand by longitudinally directed metallic C-profiles on the sides facing away from the lanes of the round timbers and on the other hand by hollow profile-like reinforcing straps in horizontal slots of round logs. In addition, a larger number of posts can be considered, which are arranged at close intervals to each other. Since the connection between the posts and the C-profiles is clamping, this connection can be performed steplessly at any point of a C-profile. Also, with such an arrangement, the position of the root system of a tree can readily be taken into account.

The fixation of the C-profiles on the round timber is done with the bolts, with which also the round timber in the longitudinal direction passing through reinforcing straps are fixed to the round timber. The horizontal slots for the reinforcing straps do not extend over the entire diameter of the roundwoods. At the same time, the reinforcing straps also serve to connect two consecutive roundwoods in the longitudinal direction of the guide rails. These may be provided at the ends of the reinforcing straps short hollow profile-like shock straps, which are inserted into the ends and bolted to the ends.

For this purpose, the compounds of the C-profiles can be used with the reinforcing straps.

According to the features of claim 2, the reinforcing belts have a rectangular cross section with rounded longitudinal edges. The horizontal extent of such cross-sections is greater than the vertical extent dimensioned. Preferably, a narrow side of the reinforcing straps comes into contact with the web of the C-profiles.

According to claim 3, it is also conceivable that the reinforcing straps are additionally connected by vertical bolts with the round woods.

A preferred determination of the end tabs of the spacers on the C-profiles is carried out using the features of claim 4. Here are the end tabs on the outside of the flanges of the C-profiles. In the C-profiles counter-holders, preferably in the form of short C-profiles, arranged, in which case the flanges of the C-profiles between the counter-holders and the end plates can be clamped with a certain torque. As a result, in a collision accident relative movements between the spacers and the C-profiles are possible, deliberately taking into account the local conditions. Here, therefore, a certain elasticity behavior is achieved, on the one hand by the structural design of the spacers and on the other hand by the displaceability of the spacers relative to the C-profiles.

With regard to highest containment levels, it may be appropriate according to the features of claim 5, incorporate additional metallic hollow sections between the C-profiles and the reinforcing straps. These hollow profiles preferably have a rectangular cross-section with rounded longitudinal edges and are therefore aligned with the contour of the C-profiles, that is, the vertical cross-sectional dimension is greater than the horizontal cross-sectional extent. Their length corresponds to the length of the C-profiles. The determination is made by bolts, with which the C-profiles are also connected to the reinforcing straps. Additional connecting means are therefore not required. In the ends of the hollow sections smaller short hollow profiles can be inserted in cross-section to create butt joints.

Another additional stiffening of the protective barrier strand according to the invention is seen in the features of claim 6. These support strips can be flat or adapt to the curvature of the surfaces of the round logs. They are preferably welded to the longitudinal edges of the C-profiles or the hollow profiles which are adjacent to the round logs. The round logs then acquire a somewhat channel-like embedding, formed by the C-profiles or the hollow profiles and the strips connected to them.

According to claim 7 protectors can be set from an elastic material on the C-profiles. With the help of these reaching to a tree protectors on the one hand, the damping of an impact is possible and on the other hand, the protection of this adjacent tree. The protectors may be made of rubber or a suitable plastic. They are preferably releasably attached to the C-profiles. The attachment can be done according to the clamping attachment of the end tabs of the spacers on the C-profiles.

In particular lengths of a protective barrier string, it may be useful according to claim 8, to provide below the Leitholms of round logs a composed of individual shots Metallholm C-shaped cross-section. This metal spar is then fixed via buffers, which are formed from short pipe sections with particular vertical axis, to the post Duch screw. Such a metal beam is used in particular for the protection of fallen bicycles riders and also prevents that cyclists (motorcyclists) can get under the handlebar with the front wheels of their motorcycles.

The posts expediently have a C-shaped cross-section. Also a sigma-shaped cross-section is conceivable. The C-shaped cross section is open on the side facing away from the roadway. To reinforce the protective barrier in these areas, if necessary, it may be useful using the features of claim 9, in this C-shaped post more additional posts, also with a C-shaped cross-section, use, but these additional posts to 90th ° are rotated in the horizontal plane.

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 Verstärkungsgurten;

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 with reference to exemplary embodiments illustrated in the drawings. Show it:

FIG. 1

in the scheme in plan view a protective barrier strand next to a roadway in the region of a tree;

FIG. 2

in an enlarged perspective view of a longitudinal section of the protective barrier strand of FIG. 1 seen from the carriageway in the direction of arrow II;

FIG. 3

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

FIG. 4

an end view on the representation of FIG. 2 seen in the direction of arrow IV;

FIG. 5

a plan view of a joint region of two reinforcing belts;

FIG. 6

a representation similar to that of FIG. 4 according to a further embodiment;

FIG. 7

a representation similar to that of FIG. 4 according to a third embodiment;

FIG. 8

a representation similar to that of FIG. 4 according to a fourth embodiment and

FIG. 9

a perspective view of a longitudinal section of a protective barrier string according to another variant.

With 1 is in the FIG. 1 a protective barrier string next to a carriageway 2 referred to. The roadway 2 is part of, for example, an alley-like road, where trees are laterally located 3 and which is heavily frequented by trucks. A tree 3 is illustrated in horizontal cross section with indicated roots 4.

The protective barrier 1 has a plurality of fixed to the ground post 5 made of steel with a C-shaped cross-section and a horizontal guide rail 6 shot against each other set round wood 7.

As with common consideration the FIGS. 2 to 4 more detail, each post 5 is provided on the side facing the roadway 2 and on the side facing in the longitudinal direction of the guide spar 6 sides with a one-piece wood casing 8. At the upper end 9, the wood casing 8 is recessed. In this area, the web 10 of a trapezoidally shaped steel spacer 11 is screw-mounted. Each bolt 12 ( FIG. 3 ) penetrates in this case the web 10, the wood casing 8 and the web 13 of the post 5. The inclined legs 14 of each spacer 11 terminate in end flaps 15, which extend in a vertical plane. The end tabs 15 serve the clamping connection of the spacer 11 with a steel C-profile 16, which is fixed on the side facing away from the roadway 2 flattened back 17 of each round timber 7 in the manner explained in more detail below. The end tabs 15 are penetrated by bolts 18, which at the same time, in particular the FIG. 4 to recognize to pass through a C-shaped counter-holder 19 which is longitudinally displaceable in the C-profile 16. With the help of the bolts 18 and nuts 20 can therefore be fixed by clamping the flanges 21 of the C-profile 16 between the end tabs 15 and the counter-holders 19 setting a specific torque.

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

In the round timber 7 is a horizontally oriented slot 24 which begins in the voltage applied to the C-profile 16 back 17 of the roundwood 7 and ends in the opposite thickness range of the roundwood 7. In this horizontal slot 24, a reinforcing belt 25 is used in the form of a rectangular hollow profile. Its horizontal cross-sectional axis is dimensioned longer than the vertical cross-sectional axis. The reinforcing belt 25 terminates at the end faces 26 of each roundwood 7 (FIG. FIG. 5 ). Successive reinforcing straps 25 are connected by a short hollow profile bumper 27 which is inserted into the adjacent ends 28 of the reinforcing straps 25.

In addition, the reinforcing straps 25 may be connected to the round timbers 7 by vertical bolts 29.

For fixing the reinforcing belt 25 in the round timber 7 and for connecting the C-profile 16 with the round timber 7 or with the reinforcing belt 25, bolts 30 and nuts 31 are provided. For this purpose, located in the web 23 of the C-section 16, in the round timber 7 and in the reinforcing belt 25 aligned, unspecified holes.

Furthermore, from the Figures 2 and 3 to recognize that in the joint area of two consecutive C-profiles 16 in cross-section smaller short C-shaped Shock profiles 32 are provided, which are also defined by means of the aforementioned bolts 30 and nuts 31 together with a C-profile 16 on the round timber 7 and on the reinforcing belt 25.

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

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

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

If a tree 3 is located next to a protective barrier 1, a protector 36 can be detachably fastened to a C profile 16 for its protection and / or for impact damping (FIG. FIGS. 1 to 3 ). Such a protector 36 consists for example of a triangular in cross-section hollow profile made of plastic. He can like the end tabs 15 of the spacers 11 are clamped to the flanges 21 of the C-profile 16.

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

The FIG. 9 shows an embodiment of a protective barrier strand 1 a, in which below the Leitholms 6 a consisting of individual shots Metallholm 37 C-shaped cross section under inclusion of buffers formed from pipe sections 38 is fixed to the post 5. The pipe sections 38 in this case take in the cross section of the metal spar 37 a. Two successive metal beams 37, like the C-profiles 16, are coupled together by means of cross-sectionally smaller short C-profiles 39 and using bolts and nuts.

Ultimately, out of the FIG. 9 Still recognizable that can be used to further stiffen a protective barrier strand 1 a in the post 5 additional post 40 with a C-shaped cross-section. However, these are incorporated offset by 90 ° in the horizontal. These additional posts 40 are connected together with the posts 5 with the webs 10 of the spacers 11 by bolts 41.

REFERENCE NUMBERS

1 -

A protective barrier

1a -

A protective barrier

2 -

roadway

3 -

tree

4 -

Roots v. 3

5 -

post

6 -

Leitholm

7 -

logs

8th -

Wood casing v. 5

9 -

upper end v. 8th

10-

Bridge v. 11

11 -

spacer

12 -

bolts

13 -

Bridge v. 5

14 -

Thighs v. 11

15 -

end flaps

16 -

C-section

17 -

Backside v. 7

18 -

Bolt on 15

19 -

Counterholder in 16

20 -

Nuts at 18

21 -

Flanges v. 16

22 -

Support strips on 16

23 -

Bridge v. 16

24 -

Slot in 7

25 -

reinforcing belt

26 -

End faces v. 7

27 -

Stoßgurt

28 -

End section v. 25

29 -

vertical bolts

30 -

bolts

31 -

nuts

32 -

Shock 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 (9)

1. Guard rail for placement adjacent to a roadway (2), comprising a plurality of metal posts (5) fixed to the ground and at least partially provided with wood coverings (8), and a horizontal guide rail (6) made from round wooden beams (7) placed against one another in sections, wherein releasably integrated between the round wooden beams (7), through which a metal reinforcing strap passes in the longitudinal direction, and the posts (5) are trapezium-shaped metal spacers (11) with end flanges (15), characterised in that the end flanges (15) of the spacers (11) are fixed in clamping manner to metal C-profiles (16) which extend on sides of the round wooden beams (7) facing toward the posts (5) and, at the abutting region of the round wooden beams (7) are screwed to one another and to the reinforcing straps (25) which are configured as hollow profiles and are incorporated into a horizontal slot (24) of the round wooden beams (7).
2. Guard rail according to claim 1, characterised in that the reinforcing straps (25) have a rectangular cross-section, the horizontal extent of which is greater than the vertical extent thereof.
3. Guard rail according to claim 1 or 2, characterised in that the reinforcing straps (25) are connected to the round wooden beams (7) by means of vertical screw bolts (29).
4. Guard rail according to one of the claims 1 to 3, characterised in that the end flanges (15) of the spacers (11) are screwed to pressure plates (19), which are displaceable in the longitudinal direction in the C-profiles (16), thereby clamping the flanges (21) of the C-profiles (16).
5. Guard rail according to one of the claims 1 to 4, characterised in that hollow metal profiles (35) are incorporated between the C-profiles (16) and the reinforcing straps (25).
6. Guard rail according to one of the claims 1 to 5, characterised in that the C-profiles (16) or the hollow profiles (35) are provided with support strips (22, 34) contacting the surfaces (33) of the round wooden beams (7) above and beneath the C-profiles (16) or the hollow profiles (35).
7. Guard rail according to one of the claims 1 to 6, characterised in that protectors (36) made from an elastic material are fastened to the C-profiles (16).
8. Guard rail according to one of the claims 1 to 7, characterised in that fastened to the posts (5) beneath the guide rail (6) is a metal rail (37) of C-shaped cross-section made from individual sections, incorporating buffers made from pipe sections (38).
9. Guard rail according to one of the claims 1 to 8, characterised in that where posts (5) with a C-shaped cross-section are used, additional posts (40) with a C-shaped cross-section are incorporated into the posts (5), offset by 90° in the horizontal plane.

Images