AT16552U1 - Road crossing with increased cyclist safety - Google Patents

Abstract

The invention relates to a roadway crossing in the version with finger plates, which enables a safe crossing with bicycles even with a stretch of over 120mm. The possibility of crossing with bicycles is achieved in that the fingers (20) are partially overlapped by the opposite, identical finger plate (10), which is offset by a finger width. For this purpose, the finger (20) is tapered in the front and / or side area and a projection (30) is provided in the finger plate (10), so that there is partial overlap and a smaller gap than the distance covered. It is thus also possible for road users with narrow tires, in particular cyclists and racing cyclists, to cross such a transition safely.

Description

MOTORWAY CROSSING WITH INCREASED CYCLIST SAFETY The invention relates to a carriageway crossing in the embodiment with finger plates, which is designed in such a way that a safe crossing is also possible for cyclists.

A lane is equipped at the transition, for example, between bridges or tunnels for different expansion of the lane with appropriate lane transitions.

These transitions are known in different versions and are partially carried out with finger plates for better bridging the expansion gap. Due to the width of the tires, this is no problem for multi-track vehicles, but also for motorcycles. Cyclists and especially racing cyclists have problems with existing solutions due to the narrow tires.

In the embodiment of such a transition according to the invention, the design of the finger plates is such that even with a large expansion joint, only small openings arise which do not endanger the safety of cyclists.

With the carriageway crossing according to claim 1 and the following dependent claims, a safe design is guaranteed even with finger plates and larger expansion paths.

In the construction of lanes, depending on the terrain, bridges or tunnels are sometimes necessary, the lanes of which expand and contract differently to the remaining lane in the event of temperature differences. In order to compensate for these expansion paths of different components and to avoid tension, movable road transitions in various designs are known. One embodiment, to which the present invention relates, relates to a roadway crossing with finger plates which engage in one another and thus enable expansion joints to be passed over as comfortably as possible. When the components are contracted appropriately, a gap is created in the roadway transition between the fingers, which, with medium and large expansion paths, causes this gap to become so large that a cyclist with his bicycle tire may get stuck in this gap and fall.

Therefore, for transitions with expansion paths over 120mm, which are also used by cyclists, no finger plates can be used, or separate lanes for cyclists with other transitions must be provided.

Both are undesirable for technical and economic reasons, so that a geometry is required that generates a correspondingly smaller gap even with medium and large expansion paths of at least 120mm, so that the transition is safe for cyclists.

A known solution is disclosed in EP1033442A2, where additional spring steel plates are attached between the fingers, which are intended to cover the resulting gap. Disadvantages are the additional parts that have to be installed and the material fatigue, which leads to the fact that due to the declining spring action of the platelets, these no longer cover the gap or are broken at all by breaking the platelets or the fastening screws.

In the RVS or in the ETAG different maximum permissible columns are listed that a road crossing is considered safe for bicycles. According to RVS, no gap larger than 150 x 20mm should be created perpendicular to the transition for the largest expansion joint.

According to ETAG no column, either a circular area with 100mm diameter, or a rectangle with 220 x 20mm perpendicular to the direction of travel and in a rotation of + - 20 ° to it, or a rectangle in the dimension 200 x 100mm in any arrangement correspond, arise.

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AT 16 552 U1 2020-01-15 Austrian Patent Office [0012] Finger plates should also be used for expansion paths greater than 120 mm and the necessary safety should be created for cyclists without installing additional parts here. The expansion paths can be up to 500mm.

For this purpose, the geometry of the fingers is to be modified in such a way that the gap which is formed is smaller than the expansion path which the carriageway transition executes.

This object is achieved by a roadway crossing according to the invention according to claim 1 and the following dependent claims.

The invention will be described in more detail with reference to Figures 1 to 5, which show possible configurations of the roadway crossing.

In Figure 1, the view from above is shown on such a road transition with trapezoidal fingers and a medium expansion path.

a finger plate with an obliquely graduated taper is shown in an oblique view.

an exemplary embodiment can be seen in a sectional view. In this case, an average expansion path has been covered and the course of the tapering or recess takes place continuously.

is an exemplary embodiment as shown in Figure 3, but with a minimal expansion path of the transition.

An exemplary embodiment can be seen in a sectional view as in FIG. 3, but here a graduated transition of the taper or the projection can be seen.

In a carriageway crossing, finger plates (10) serve to make a crossing over the necessary expansion joint as homogeneous as possible and to avoid strikes both on the vehicle driving over and on the transition itself as far as possible. Various designs are known for the geometrical design of the fingers (20), in each of which an opening path leads to a corresponding gap between the finger plates (10).

A finger plate (10) has a plurality of fingers (20) and on the opposite side of the expansion joint, essentially the same geometry is used, only offset by a finger width, so that the two plates (10) can engage with one another and also with one corresponding expansion path there is still a corresponding coverage of the expansion joint that can be run over.

In Figure 2 [0018] In Figure 3 [0019] In Figure 4 [0020] In Figure 5 [0023] The finger plate (10) is connected to a cage at roadway transitions. An expansion joint profile for drainage and fastening brackets for reinforcing irons are attached to the cage for better and secure fastening in the concrete.

Likewise, an angle profile is provided as a stop for the future pavement at a roadway crossing. Such designs are known.

The invention is concerned with the geometry of the finger plate (10), in particular the finger (20) and the corresponding recess, which is carried out in such a way that the gap resulting from the expansion is smaller than the expansion path when viewed from above.

For this it is necessary that the two plates overlap at least partially.

The overlap can take place both only in the longitudinal direction of the expansion and also in the transverse direction, and the shape of the fingers (20) can be essentially trapezoidal, rectangular or even wavy when viewed from above on the overlap area.

In order to achieve an overlap, it is necessary that on the one hand the fingers (20) of the plates (10) taper towards the parting line and on the other hand the plate (10) in the engagement area of the fingers (20) has a projection (30) has around the tapered finger (21)

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AT 16 552 U1 2020-01-15 Austrian patent office.

The tapering of the finger (21) can be carried out continuously or following any mathematical function, in several wave-like stages or in stages. A preferred embodiment provides that the finger (20) has a first bevel at the tip, then runs essentially parallel to the plate and again has a bevel at the end. The angle of the two slopes is between 10 and 60 °, preferably between 30 and 45 ° and can be different or the same for both slopes.

For this purpose, the finger geometry (21) is preferably milled or ground in the upper area. It is also conceivable to produce the entire plate (10) with the desired geometry by means of a casting process.

The tapering of the finger (21) can only take place in the front area, but also laterally.

On the opposite side of the taper (21), it is necessary for the engagement of these tapered fingers (21) on the finger plate (10) to create a corresponding recess that only a relatively thin projection (30) on the top the finger plate (10) remains. The geometry of the projection (30) essentially corresponds to the cross-sectional geometry of the tapered finger (21), but there is a play (40) of 2 to 15 mm between the two finger plates (10) in the overlap area between the projection (30) and the taper of the finger (21) executed.

This game (40) ensures that the finger plate (10) can be easily lifted for maintenance work even in the completely closed state.

Furthermore, this game (40) in the event of contamination or the presence of small stones allows the expansion movement of the transition to be carried out unimpeded.

The total thickness of the finger plate (10) has a range from 10 to 80mm, preferably from 25 to 50mm. The taper of the fingers (21) is between 5 and 20 mm, so that with a plate thickness (10) of 50 mm a remaining thickness of the fingers (20) of 30 to 45 mm is retained.

Since the recess on the opposite finger plate (10) is made 2 to 15 mm larger in height, a thickness of the projection (30) of 2 to 15 mm remains, depending on the embodiment.

The game (40) from 2 to 15mm is provided not only in height, but also in the length or width of the fingers (20).

The length of the taper of the fingers (21), or the projection (30) on the opposite side can be from 20mm to 300mm and if the width of the fingers (20) is also tapered, this can be over the entire width , or only a partial area and is between 5 and 50 mm.

Since the finger plates (10) have the same geometry on both sides of the road and are only offset by a finger width, both features (tapering of the fingers (21) and projection (30) on the corresponding side) are in the finger plate (10) incorporated. Here too, milling or other types of removal apply, or production by casting in suitable molds. The projection (30) can also be produced by welding platelets into a recess.

Steel, for example S355 or stainless steel, or light metal alloys, preferably made of aluminum or plastic, is used as the material for the finger plates (10).

When steel is used, corrosion protection, for example galvanizing the plates (10), is also provided.

[0042] Thus, with the roadway crossing according to the invention, there is a bike-safe transition

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AT 16 552 U1 2020-01-15 Austrian patent office created, which allows cyclists to cross safely without additional parts, even with expansion paths over 120mm up to 500mm, which was the aim of the invention.

REFERENCE SIGNS LIST:

10 .......... finger plate

.......... fingers

.......... rejuvenation on the finger

30 .......... cantilever on the finger plate

40 .......... game

Claims (11)

1.way transition with finger plates (10), the same finger plate geometry being used on both sides of the transition, but this is installed offset by a finger width, characterized in that the fingers (20) are at least partially tapered, on the corresponding opposite side a projection (30 ) of the finger plate (10) is provided and thus there is an overlap between the fingers (20) of one plate (10) with the opposite plate (10) in the closed state. 2. Road crossing according to claim 1, characterized in that the shape of the fingers (20) is essentially trapezoidal when viewed from above. 3. Road crossing according to claim 1, characterized in that the shape of the fingers (20) is essentially rectangular when viewed from above. 4. Road transition according to claim 1, 2 or 3, characterized in that the taper (21) of the fingers (20) is between 5 and 20mm. 5. carriageway crossing according to at least one of claims 1 to 4, characterized in that the taper (21) is continuous. 6. Roadway crossing according to at least one of claims 1 to 4, characterized in that the taper (21) is inclined in a stepped manner with a substantially parallel to the plate area. 7. Roadway crossing according to at least one of claims 1 to 6, characterized in that the taper (21) is additionally incorporated in the lateral region of the fingers (20). 8. Roadway crossing according to at least one of claims 1 to 7, characterized in that the length of the taper (21) is between 20 and 300mm. 9. roadway crossing according to at least one of claims 1 to 8, characterized in that the projection (30) both in height, as well as in width and length by a game (40) of 2 to 15mm smaller than the tapered finger (21 ) is executed. 10. Roadway crossing according to at least one of claims 1 to 9, characterized in that the finger plates (10) are produced by milling. 11. Roadway crossing according to at least one of claims 1 to 10, characterized in that it is used for expansion paths of 120 to 500 mm.