EP1693518A1 - Guard rail - Google Patents

Abstract

Protection plank strand has longitudinal rails (9) which have trapezoidal cross section and have a bar and two shanks, whereby round timbers (5) are partially enclosed by longitudinal rails. Longitudinal rails are consecutively connected with their ends (23,24) overlapping. The overlapping ends are bent away from the round timbers, relative to the adjacent longitudinal sections (27) of the longitudinal rails.

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.

From EP 1 486 614 A1, a protective barrier string of the generic type belongs to the state of the art. The protective barrier has a number of vertical metallic posts fixed to the ground and a horizontal guide rail of round logs set against each other. The round woods extend on parallel metallic longitudinal rails, which are attached to the posts via spacers. The round timbers are bolted to the longitudinal rails. For this purpose, the round woods on a flattened back. To reinforce the roundwoods a metallic reinforcing belt is provided, which passes through the round timber in the longitudinal direction.

The known type has proven itself well in use and achieved due to their stable construction very high containment levels. However, practice has shown that assembly on the jobsite is difficult and time consuming.

The invention is therefore based on the prior art based on the object to provide an improved assembly with respect to the protective barrier, which is also variable executable with respect to different containment levels.

The solution to this problem consists according to the invention in a protective barrier according to the features of claim 1.

The main point of the invention is the measure that the longitudinal rails have a trapezoidal cross section with a web and a projecting in the direction of the roadway upper and lower legs, the round woods are partially surrounded by the longitudinal rails. Successive longitudinal rails are connected with their ends overlapping each other. The overlapping ends are bent relative to the adjacent longitudinal sections of the longitudinal rails facing away from the round woods.

The invention provides a longitudinally continuous longitudinal rail of metal, which is fixed to the vertical post via spacers. The profile of the longitudinal rail is in one piece and has a simple trapezoidal cross-section. The round timbers are non-positively bolted to the individual shots of the longitudinal rail. So that the logs can be inserted and mounted consistently without recess, the overlapping ends of the longitudinal rails are cranked away from the round woods backwards.

To assemble the protective barrier string according to the invention, the steel structure is first constructed. For this, the vertical posts are rammed into the ground. The distance of the posts is variable and takes place in adaptation to the conditions along the road. Subsequently, the longitudinal rails are mounted on the spacers on the posts and interconnected, so that there is a continuous channel of the longitudinal rails. The attachment of the longitudinal rails to the posts is preferably configured so that they act as predetermined breaking points. In this way, the defensive stoppage can be increased or improved in the event of an impact. After the steel structure stands, the guide rail is assembled from round timbers. For this purpose, the round timbers are positioned in the longitudinal rails and fixed by means of bolts. The round logs can be mounted consecutively abutting each other. Elaborate blanking or notching cuts in the joint areas are not required. Only in curve sections simple miter cuts end of the round timber may be necessary.

The protective barrier according to the invention is characterized by its ease of installation in a structurally simple design. In addition, the protective barrier can be designed depending on the design in a simple manner to different containment levels. Another advantage is that just because of the ease of installation, the lengths of the individual shots can be increased. So far, shots of 4 m length are common. Now you can go to a shot length of 6 m. As a result, the number of joints as well as the necessary connection means and assembly work can be reduced by half.

Advantageous embodiments of the basic concept of the invention are the subject of the dependent claims 2 to 10.

The ends of two consecutive longitudinal rails are interconnected by bolts. This is done before the round timbers are mounted on the longitudinal rails. By the offset of the ends of a space between the round timbers and the ends is formed, in which the screw heads or nuts of the bolts are. The logs can be continuously abutting mounted without being obstructed by protruding ends of the bolts. The round logs themselves are in turn connected to the ends of the longitudinal rails via fastening bolts, the fastening bolts passing through the round timbers and the ends of the longitudinal rails transversely.

To increase the retention level can be incorporated between the spacers and the posts metallic longitudinal profiles which extend continuously parallel to the guide rail. The longitudinal profiles preferably have a C-shaped cross section, wherein the open side of the longitudinal profiles is arranged away from the roadway within the protective barrier strand.

To ensure underride protection, a continuous metal spar can also be mounted from individual shots below the guide rail. This is determined by inclusion of spacers on the post. The lower metal spars preferably have a C-shaped cross-section. In particular, the spacers are configured and designed to provide a buffering effect. In practice, spacer elements made of short pipe sections have proven successful.

This construction is used in particular for the protection of fallen cyclists. In addition, the lower guide rail to prevent cyclists can get with the front wheels under the upper guide rail.

Depending on the road situation, a second guide rail may be arranged below the upper guide rail. Upper and lower Leitholm thus form a double plank arrangement. As a result, a very high retention level can be ensured. Such constructions are useful, for example, on bridges, in tight bends or in areas with a high risk of falling.

The fixed to the ground, preferably rammed into the ground vertical posts have a C-shaped cross-section. To increase the buckling resistance, the posts are closed on their side facing away from the roadway open side at the bottom end portion by a reinforcing plate. As a result, the resistance moment of the posts can not be increased additionally.

It has already been pointed out at the beginning that the assembly of the protective barrier string according to the invention is facilitated and simplified. After setting up the steel structure, the round timbers are positioned in the longitudinal rails and screwed to them. This is already possible with less effort and time and can be done with simple tools. The assembly work can also be further facilitated if support brackets can be fixed to the posts below the longitudinal rails as assembly support for the round timbers. The support brackets are attached to the posts before assembly of the roundwoods. Subsequently, the round timber can be placed there, positioned in the longitudinal rails in accordance with the installation and then connected to the longitudinal rails. Here they rest on the support brackets, so that the assembly work can be carried out without excessive force or danger of falling of the round logs. After installation, the support brackets are removed.

Both for visual reasons and for safety reasons, the vertical posts can be at least partially provided with a sheath. This may be a colored sheathing to visually adapt the galvanized steel posts to the timber of the Leitholms. The jacket can also take over shock and impact protection function. In this context, it is also possible to provide the posts with a plastic sheath. Particularly useful a wooden casing of the vertical post is considered. This is a natural material, which is visually adapted to the overall appearance of the protective barrier and also has shock-absorbing properties.

Figur 1

in perspektivischer Darstellungsweise einen Ausschnitt aus einem erfindungsgemäßen Schutzplankenstrang in einer Vorderansicht;

Figur 2

die Darstellung gemäß der Figur 1 in einer rückwärtigen Ansicht;

Figur 3

ebenfalls in einer Perspektive einen weiteren Schutzplankenstrang in einer rückwärtigen Ansicht;

Figur 4

eine weitere Ausführungsform eines Schutzplankenstrangs in der Perspektive und rückwärtiger Ansicht;

Figur 5

in einer horizontalen Schnittdarstellung den Stoßbereich zwischen zwei Rundhölzern;

Figur 6

in vergrößerter Darstellungsweise einen Ausschnitt aus dem Stoßbereich des Schutzplankenstrangs gemäß der Figur 2;

Figur 7

eine Stirnansicht auf die Darstellung der Figur 6 gemäß dem Pfeil A;

Figur 8

eine weitere Ausführungsform eines Schutzplankenstrangs in der Perspektive in einer Vorderansicht;

Figur 9

die Darstellung des Schutzplankenstrangs gemäß Figur 8 in einer rückwärtigen Ansicht;

Figur 10

eine weitere Alternative eines Schutzplankenstrangs in perspektivischer Darstellungsweise in einer Vorderansicht;

Figur 11

den Schutzplankenstrang gemäß der Figur 10 in einer rückwärtigen Ansicht;

Figur 12

die Darstellung gemäß Figur 7, jedoch ohne Stützkonsole;

Figur 13

eine Stirnansicht auf die Darstellung der Figur 4 in Richtung des Pfeils B gesehen;

Figur 14

eine Stirnansicht auf die Darstellung der Figur 8 in Richtung des Pfeils C gesehen und

Figur 15

eine Stirnansicht auf die Darstellung der Figur 10 in Richtung des Pfeils D gesehen.

The invention is described below with reference to exemplary embodiments illustrated in the drawings. Show it:

FIG. 1

a perspective view of a section of a protective barrier according to the invention in a front view;

FIG. 2

the representation according to the figure 1 in a rear view;

FIG. 3

also in a perspective another guard rail in a rear view;

FIG. 4

a further embodiment of a protective barrier strand in perspective and rear view;

FIG. 5

in a horizontal sectional view of the joint area between two roundwoods;

FIG. 6

in enlarged representation, a section of the joint area of the protective barrier strand according to Figure 2;

FIG. 7

an end view of the representation of Figure 6 according to the arrow A;

FIG. 8

a further embodiment of a protective barrier strand in perspective in a front view;

FIG. 9

the representation of the protective barrier strand according to Figure 8 in a rear view;

FIG. 10

a further alternative of a protective barrier strand in perspective representation in a front view;

FIG. 11

the protective barrier strand according to the figure 10 in a rear view;

FIG. 12

the representation of Figure 7, but without support bracket;

FIG. 13

seen an end view of the representation of Figure 4 in the direction of arrow B;

FIG. 14

seen an end view of the representation of Figure 8 in the direction of arrow C and

FIG. 15

an end view seen on the representation of Figure 10 in the direction of arrow D.

Corresponding components or component components carry the same reference numerals in all figures.

In Figures 1 and 2, a protective barrier strand 1 is shown to the arrangement next to a roadway 2. The protective barrier 1 has a plurality of fixed to the ground post 3 made of steel and a horizontal guide rail 4 shot against each other set round timber 5 on.

As can also be seen in FIGS. 6 and 12, the posts 3 have a C-shaped cross section and are closed by a reinforcing plate 8 on their open side 6 facing away from the roadway 2 on the bottom end section 7 for increasing the buckling resistance.

The round wood 5 extend to parallel running longitudinal rails 9 made of metal, the longitudinal rails 9 are fastened by metallic spacers 10 to the post 3. With particular reference to FIGS. 6, 7 and 12, it can be seen that the longitudinal rails 9 have a trapezoidal cross-section with a vertically directed web 11 and two legs 12, 13 extending obliquely forwards from the web 11 in the direction of the roadway 2.

The spacers 10 are made of steel and also have a trapezoidal cross-section. With their post-side mounting bar 14, the spacers 10 are fixed to the post 3 by bolts 15 and nuts 16. Each stud bolt 15 penetrates the mounting bar 14 of the spacer 10 and the front flange side 17 of the post 3. The inclined side legs 18, 19 of each spacer 10 terminate in end tabs 20, 21 which extend in a vertical plane. The end tabs 20, 21 are used to connect the spacers 10 with the longitudinal rails 9. The connection between a longitudinal rail 9 and a spacer 10 can be done both by welding technology and by means of bolts. For example, in FIGS. 7 and 12, a connection via a weld 22 is shown.

The fixed to the post 3 longitudinal rails 9 form a continuous channel-like receptacle for the round timber 5. For this purpose, two consecutive longitudinal rails 9 with their ends 23, 24 overlapping by bolts 25 and nuts 26 connected to each other, as is apparent in particular in Figure 5.

The overlapping ends 23, 24 are bent relative to the adjacent longitudinal sections 27 of the longitudinal rails 9 away from the round timber 5 away. For this purpose, the length sections 27 pass over an inclined bevel section 28 bent away from the round timber 5 into the ends 23 and 24, respectively. By the offset of the ends 23, 24, a free space 29 is formed for receiving the screw heads 30 of the bolt 25th

The round timber 5 are positioned in the longitudinal rails 9 and mounted continuously abutting each other. This is possible by the offset of the ends 23, 24. To establish the round timber 5 are connected to the ends 23, 24 of the longitudinal rails 9 via fastening bolts 31, wherein the fastening bolts 31, the round timber 5 and the ends 23, 24 transversely prevail. The heads 32 of the fastening bolts 30, 31 are recessed in roadway-side recesses 33 of the round timber 5. The clamping of the fastening bolt 31 with the round timber 5 and the ends 23, 24 via nuts 34, the post side on the over the ends 23, 24 projecting threaded portions of the fastening bolts 31 are screwed and tightened.

As mounting aid 9 support brackets 35 can be fixed to the post 3 below the longitudinal rails, as can be seen in particular in Figures 6 and 7. During assembly, the round timber 5 can be placed on the support brackets 35 and positioned to install. This is done in a simple manner manually, since the weight of the round timber 5 is carried in the assembly work of the support brackets 35. in the Following the assembly work, the support brackets 35 can be dismantled.

The round timber 5 form the continuous guide rail 4, which is received and locked in the longitudinal rails 9. Here, the round timber 5 are partially surrounded by the longitudinal rails 9 through the legs 12, 13 and supported on the upper side or bottom side.

The embodiment of a protective barrier string 36 according to FIG. 3 corresponds to that described above. However, the distance between the posts 3 along the protective barrier strand 36 is set closer than the protective barrier strand. 1

In Figures 4 and 13, a protective barrier string 37 is shown, in which between the spacers 10 and the posts 3 metallic longitudinal profiles 38 are incorporated, which extend parallel and continuously to the guide rail 4. The longitudinal profiles 38 have a C-shaped cross section and are connected via bolts 39 with the posts 3 on the one hand and with the spacers 10 on the other.

The protective barrier strand 40, as can be seen in FIGS. 8, 9 and 14, has, in addition to the upper guide rail 4, an underrun protection which consists of individual shots of metal bars 41 of C-section cross-section. These are defined by incorporation of spacers 42 to the post. The spacers 42 are formed of short pipe sections, which are connected in a suitable manner, preferably by screwing, with the posts 3 on the one hand and the metal beams 41 on the other.

A protective barrier strand 43 with a very high retention capacity and correspondingly high retention level can be seen in FIGS. 10, 11 and 15.

Here, a second guide rail 44 is arranged from round timber 5 below the upper Leitholms 4, so that a double plank arrangement is formed.

The upper guide rail 4 made of round timbers 5 is positioned in the longitudinal rails 9, which are fixed to the posts 3 via the spacers 10 and metallic longitudinal profiles 38. At the lower guide rail 44, the spacers 10 are fixed directly to the post 3. As a result, the upper guide rail 4 protrudes by a distance x, which corresponds to the thickness of the longitudinal profile 38, in relation to the lower guide rail 44.

Reference numerals:

1 -

A protective barrier

2

roadway

3

post

4

Leitholm

5

spar

6 -

Page v. 3

7 -

End section v. 3

8th -

Support panel

9 -

longitudinal rail

10 -

spacer

11 -

web

12 -

leg

13 -

leg

14 -

mounting rail

15 -

bolt screw

16 -

mother

17 -

Flange side v. 3

18 -

side leg

19 -

side leg

20 -

end flap

21 -

end flap

22 -

Weld

23 -

End of v. 9

24 -

End of v. 9

25 -

bolts

26 -

mother

27 -

longitudinal section

28 -

oblique section

29 -

free space

30 -

Screw head v. 25

31 -

mounting bolts

32 -

Head of 31

33 -

Recess in 5

34 -

mother

35 -

support bracket

36 -

A protective barrier

37 -

A protective barrier

38 -

longitudinal profile

39 -

bolts

40 -

A protective barrier

41 -

metal Holm

42 -

spacers

43 -

A protective barrier

44 -

Leitholm

x -

Supernatant between 4 u. 38

A -

arrow

B -

arrow

C-

arrow

D-

arrow

Claims (10)

Safety barrier for arrangement next to a roadway (2) having a plurality of fixed to the ground, vertical metallic posts (3) and a horizontal guide rail (4) shot against each other round logs (5), wherein the round timber (5) on parallel longitudinal rails (9) extend from metal, and the longitudinal rails (9) via metallic spacers (10) are fixed to the post (3), characterized in that the longitudinal rails (9) have a trapezoidal cross section with a web (11) and two legs (12, 13), wherein the round timber (5) of the longitudinal rails (9) are partially embraced, and that successive longitudinal rails (9) are connected in an overlapping manner with their ends (23, 24), wherein the overlapping ends (23, 24) relative to the adjacent longitudinal sections (27) of the longitudinal rails (9) of the round timber (5) pointing away are bent. A protective barrier according to claim 1, characterized in that the ends (23, 24) of two successive longitudinal rails (9) are interconnected by bolts (25). Safety barrier according to claim 1 or 2, characterized g ekennzeichnet that by the offset of the ends (23, 24) has a free space (29) is formed for receiving screw heads (30) or nuts of the bolts (25). A protective barrier according to one of the claims 1 to 3, characterized in that the round timbers (5) are connected to the ends (23, 24) via fastening bolts (31), the fastening bolts (31) containing the roundwoods (5) and the ends (23 , 24) transversely. Safety barrier according to one of the claims 1 to 4, characterized in that between the spacers (10) and the posts (3) metallic longitudinal profiles (38) are incorporated, wherein the longitudinal profiles (38) parallel to the guide rail (4). Safety barrier according to one of the claims 1 to 5, characterized in that below the guide beam (4) a second guide rail (44) is arranged. Safety barrier according to one of the claims 1 to 6, characterized in that below the Leitholms (4) an existing of individual shots metal spar (41) by incorporation of spacers (42) is fixed to the post (3). Safety barrier according to one of the claims 1 to 7, characterized adurch in that the posts (3) have a C-shaped cross-section and on its from the roadway (2) facing away from the open side (6) at the bottom end portion (7) by a reinforcing plate ( 8) are closed. Safety barrier according to one of the claims 1 to 7, characterized in that on the post (3) below the longitudinal rails (9) support brackets (35) can be fixed as mounting support for the round timber (5). Safety barrier according to one of the claims 1 to 9, characterized in that the posts are at least partially provided with a sheath.

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