DE8221169U1 - WARNING THRESHOLD ON VEHICLE ROADS - Google Patents

Description

Dipi.-Agr. P. Thielmann

Patent engineer

Biedenkopf. At the Eschenberg ΛΛ
82 07 15
GFL

APPLICANT

GFL-Sportstättenbau GmbH, Marburger Strasse 36, D-5928 Laasphe

TITLE

Warning threshold on motor vehicle roads

DESCRIPTION

The invention relates to a warning threshold on motor vehicle traffic " roads In the form of a plate-shaped threshold body with rectangular plan, a roof-shaped surface sloping towards all four seldom and low, vertical ones Side walls, which run transversely to the roadway with its base up to the level of the side walls in the roadway is recessed, with the roof surfaces above the road surface stick out.

Warning thresholds of this kind are already under the designation known as "sleeping policemen". The known warning thresholds are made of concrete and embedded in the road surface. Your height above the road surface is like this dimensioned so that they are driven over at a low speed hardly represents a traffic obstacle, but that it is a Do not drive over the thresholds at high speed eats.

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They are used especially in southern countries Warning thresholds at intersections of busy roads to To force the drivers to approach the intersection only at low speed and thereby the intersection traffic make it safer.

However, the known warning thresholds made of concrete are different Respect not optimally suited for this purpose: They are indeed easy to manufacture. Your heavy weight but requires a relatively large effort for the transport of the more or less distant Place of manufacture to the place of destination as well as during laying. If the plate-shaped sleepers are not reinforced, they are subject to they of course also wear out. They lose their effectiveness after a while and have to be replaced which in turn is very expensive due to the great weight.

In addition, the flat, rather plate-shaped Sleepers are quite fragile if they are not reinforced to have. But steel reinforcement makes its manufacture considerably more expensive ..

The invention is therefore based on the object of providing a warning threshold of the type described above, in which the disadvantages of the known warning thresholds made of concrete are eliminated are. In addition, the visible roof surfaces should serve as a signal carrier.

To solve this problem, the invention is based on a warning threshold according to the preamble of claim 1.

The object set is achieved according to the invention by that the sleeper body consists of a granulate of waste rubber, in particular of used vehicle tires, the Is bound in the intended form by a binder, preferably polyurethane.

A further technical development exists according to claim 2 in that the binder on the outer surfaces of the

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steering body forms a closed layer 5. Through this
this prevents water from penetrating into the sleeper body, which could lead to the destruction of the internal structure.

A perfection can furthermore according to claim 3 therein exist that the underside of the sleeper body an in Longitudinal profiling, for example in Has the shape of ribs. This gives the threshold a better connection to the ground.

A technical refinement may further according to claim k are that an abrasion-resistant in the roof surfaces
Material, for example, large-sized smooth-grained gravel is incorporated. Large sieved gravel - roughly the size of a pea - smooth-grained gravel is very abrasion-resistant and can significantly increase the service life of the warning thresholds, whereby the wear on the vehicle tires is less than with the known concrete warning thresholds.

The roof surfaces can according to the invention on different

Way be designed as signal surfaces. This can be done by integrating light-reflecting bodies into the closed layer of the roof surfaces. The light reflecting bodies can be known per se
be prismatic glass reflectors or glass beads.

These can be numbers, letters or other characters
be formed.

The glass reflectors or glass beads can be the warning color
yellow - on the approach side of the threshold - and / or the
Warning color red on the back of the threshold - have.

The roof surfaces can also be formed into signal f 1 surfaces by adding dyes to the binder at least in the outer closed layer,
these in turn in formations, for example

in the form of numbers, letters or other characters.

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The warning threshold should provide a shock that is as resilient as possible. witness. According to the invention, this effect can thereby be influenced that the structure of the sleeper body is heterogeneous is such that in certain formations areas Another density or another shape size of the granulate are preferred.

The invention is explained in more detail below with reference to a drawing showing it as an example. Show it:

Fig. 1 a warning threshold like, the invention in a perspective view,

Fig. 2 shows a section along the line A-A according to Fig. 1 and Fig. 3 shows detail B according to Fig. 2 in an enlarged representation of the details.

The warning threshold according to the invention has a rectangular base 1 and a roof surface 3 that is seldom inclined after all four of the vertical side walls 2, which are only a few centimeters high. The threshold body k consists essentially of

20, borrowed from a granulate of used vehicle tires, which by an elastic binding agent, namely polyurethane, Is bound in the intended form. The binding agent forms on the outer surfaces of the sleeper body 4 a closed layer 5, which prevents the penetration of water into the interior.

In the closed layer 5 of the longitudinal roof surfaces 3 is more coarsely sieved - for example, pea-sized, smooth-grained Gravel 6 incorporated, which prevents abrasion of the surfaces.

Between the pebbles 6 are known per se in a formation Glass reflectors 7 integrated into the closed layer 5. These have expediently on the approach side the warning signal color yellow and on the back the prohibition signal color Red.

The invention is not limited to the embodiment described here.

example limited. So can instead of the pebbles 6 and the reflectors 7 on one or on both longitudinal roof surfaces 3 continuous glass beads in the closed Layer 5 be integrated so that the roof surfaces 3 act as a whole as a signal f 1 surfaces.

Other alternative possibilities and improvements of the Subject of the invention are mentioned in the protection claims.

Claims (1)

a mi ι t · · ■ · ■ · Sill ■ ·· · Dipi.-Agr. P. Thielmann Patent Engineer <Biedenkopf, Am Eschenberg 14 82 07 15 GFL APPLICANT GFL-Sportstättenbau GmbH, Marburger Straße 36, D-5928 Laasphe PROTECTION CLAIMS 1. Warning threshold on motor vehicle traffic roads in the form of a plate-shaped threshold body with a rectangular plan, a roof-shaped surface sloping on all four sides and low, vertical rare walls, which runs transversely to the roadway with its base up to the level of the side walls in the roadway, whereby the roof surfaces on the road surface protrude, characterized in that the sleeper body ⁽¹ O rubber from a granulate of wastes for 1 consists in particular vehicle tires, which is bound in the prescribed shape by a binder, preferably polyurethane. 2. warning threshold according to claim 1, characterized ge indicates that the binder in the outer surfaces of the sleeper body is a closed Layer (5) forms. 3. warning threshold according to claim 1 and 2, characterized in that the underside of the sleeper body ⁽¹ O having an axis extending in the longitudinal direction of profiling, preferably in the form of ribs. \ ^. Warning threshold according to Claims 1 to 3, characterized '; geke η π ζ * 3 ic et HTN that in the Dachflä- chsn (3) an abrasion-resistant material, for example Large, smooth-grained gravel C6) incorporated .; 5 is. ^f ' 5. warning threshold according to claim 1 to 4, characterized. marked ^ that in the roof I chen (3) light-reflecting bodies incorporated '? 10 are. I 6. warning threshold according to claim 1 to 5, characterized f characterized in that the light reflecting body known reflectors (7) in 15 are in the form of prismatic glass bodies. 7. warning threshold according to claim 1 to 5; through this labeled Ichnet that the light is reflective Body are glass beads. 20th 8. warning threshold according to claim 1 to 7 _; marked by the fact that the closed I layer (5) of the roof surfaces (3) contains dyes. X 25 9. Warning threshold according to claim 1 to .8, thereby 1 characterized in that the structure of the I threshold body (Ό is heterogeneous, such that in f certain formations areas of different density voi— are seen. CCC ·· · · · · ι II «·· * t» I t tin ι ι ·· ·· · · CtCC ■ ·· · · · · O »4 Warning threshold according to Claims 1 to 10, characterized marked ichnet that the structure of the threshold body O) is heterogeneous, such that the Grain size of the rubber granulate is different in certain formations.