SK2962000A3 - Finger plate and device for spanning expansion joints - Google Patents

Abstract

The finger plate (7) for spanning an expansion joint in a roadway has cavities (10) in which bridging components (13) are arranged that extend from the base (14) of the cavity between the fingers (9) in the direction of their length over the finger point(15). An Independent claim is included for a device for spanning an expansion joint in a roadway.

Description

Technical field

The invention relates to a toe plate for bridging expansion joints in roads, bridges and the like, wherein a recess or a recess is formed between the toes of the toe plate. a device for bridging these expansion joints with at least two mirrored finger plates which are offset by the value of the finger width transversely to the longitudinal direction of the finger.

BACKGROUND OF THE INVENTION

In order to allow for expansion between the individual parts of the structure, for example between the support and the bridge girder, the respective expansion joint is bridged with the fingers of the respective finger plates. In the prior art arrangements, however, at low temperatures, the distance between the tip of the fingers and the opposing recess bases is so great that it substantially reduces the safety of traffic and / or traffic. driving comfort of cyclists. Furthermore, this distance must also be reduced in order to meet the conditions of transport safety laid down in the relevant road transport regulations.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The object of the invention is to substantially increase the driving comfort and / or the safety of traffic for cyclists when crossing the expansion joint bridging device.

This problem is solved by the invention with the features set forth in the characterizing part of claim 1. The surprising advantage of this solution is that the bridging arrangement in the recesses can reduce the distance between the fingers of the individual finger plates and the base of the recess between the fingers of another finger plate. This is achieved by a simple construction that does not require any substantial structural changes and automatically adapts to varying spacing between finger plates.

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Further embodiments according to claims 2 to 5 are also advantageous, by means of which an optimal engagement of the two finger plates is possible and thus allows for an optimal bridging of the expansion joint without larger openings.

Furthermore, an embodiment according to claim 6 is advantageous in which the bridging element and the bridging element are easily set up. in case of fatigue it is easily replaced.

The embodiment according to claim 7 allows the bridging element to optimally conceal the extension of the recess between the fingers and thus inadvertently prevent unwanted entry of the bicycle wheel.

According to a variant of the embodiment according to claim 8, it is achieved that the bridging element and the bridging element are respectively disposed. the spring blade in each position of the finger plates adapts to the existing circumstances, thus ensuring optimum safety for cyclists.

It is also advantageous to provide another embodiment according to claim 9, by means of which the tired bridging element can be easily replaced.

In a further embodiment according to claim 10, it is achieved that the bridging element resp. the spring sheet is loaded only by the narrow jacket, in particular of the bickles, and when the bridging device traverses the vehicles, they are not loaded by the wide jacket, thereby significantly increasing the service life of such a bridging element.

However, the object of the invention is also solved by the features of the characterizing part of claim 11. In this connection, it is advantageous that the bridging elements which are located in the recesses of one finger plate are guided or guided. deformed by the fingers of the next toe plate, so that no further structural changes need to be made to the bridge device.

An embodiment according to claims 12 to 16 is advantageous in which an optimum deformation or an optimum deformation is achieved. guiding the bridging element or spring sheet, and thus the service life of such a bridging element can be increased again.

However, embodiments according to Claims 17 and 18 are also possible, whereby other advantageous embodiments of the bridging element or of the bridging element can be achieved. finger boards with fingers.

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However, embodiments according to claims 19 and 20 are also advantageous, by means of which the positioning of the bridging element relative to the fingers of the finger plate can be realized and thus no undesirable noise or release of the bridging elements can occur.

By a preferred embodiment according to claim 21 it can be achieved that under unfavorable circumstances in terms of fatigue of the bridging element material, the arrangement can be compensated by an additional spring device and the necessary biasing of the bridging element in the bridging devices can be ensured.

Damage of the drawings

The invention is explained in more detail below with reference to the drawings. The drawings show:

Fig. 1 shows an expansion joint bridging device according to the invention with plates with fingers arranged perpendicular to the longitudinal axis of the road in a schematic simplified representation.

Fig. 2 shows a plan view with finger plates of the expansion joint bridging device according to the invention in a temperature range corresponding to room temperature.

Fig. 3 shows the device according to the invention according to FIG. 2 in a sectional side view.

Fig. 4 shows the device according to the invention according to FIG. 3 at a temperature well below freezing, in a cross-sectional side view.

Fig. 5 shows the device according to the invention according to FIG. 3 at a temperature above room temperature in a sectional side view,

Fig. 6 shows a further embodiment of the device according to the invention in sectional side view.

Fig. 7 is a side sectional view of another embodiment of the device according to the invention;

Fig. 8 shows a further embodiment of the device according to the invention in sectional side view.

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DETAILED DESCRIPTION OF THE INVENTION

It is stated at the outset that in the different embodiments described, the same parts are provided with the same reference numerals, respectively. by the same designation of parts, the data contained throughout the description may be transferred to the same parts with the same reference numerals. Also, the position data used in the description, such as top, bottom, side, and the like, refer to the immediately described and equally illustrated images and may be transferred to a new position when the position is changed. Furthermore, the individual features or combinations of features of the various types of embodiments illustrated and described herein may also represent separate inventive solutions or solutions according to the invention.

In FIG. 1 shows a device 1 for bridging expansion joints 2 in a roadway 3, in particular on bridges 6 between a support 4 and a beam 5 of a bridge 6.

These bridging devices 1 consist of FIG. 1 of the plates 7 with the fingers 9 placed on the bridge 5 of the bridge 6, respectively. These toe plates 7 consist of a support plate 8 and toes 9 projecting in the longitudinal direction of the road 3 through this support plate 8. Between the toes 9 of the toe plate 7 are formed recesses 10 which serve to receive the fingers 9 of the further plate 7 with the fingers 9.

In FIG. 2 and 3, a device 1 for bridging the expansion joint 2 between the support 4 and the bridge 5 of the bridge 6 is shown.

In principle, the special design of the finger 9, the recess 10 and the bridging element 16 are shown and described only in partial areas of the embodiment. Of course, the embodiments can also be used in the entire bridging device 1, or can only be used in partial areas of the bridging device 1.

As can be seen here, the finger plates 7 are fastened to the support 4 or the bridge 5 of the bridge 6 by means of fastening devices 11, and the fastening devices 11 holding the finger plates 7 are embedded in the support 4 or the bridge 5 of the bridge 6. by means of connecting elements 12. As is particularly apparent from FIG. 2, are

416 / B between the fingers 9 formed by recesses 10 which allow the fingers 9 to engage with each other when the position of the bridge 6 changes due to temperature. In the recesses 10 between the fingers 9 are placed bridging arrangements 13 which extend from the base 14 of the recess 10 between the fingers 9 of the finger plate 7 so that they protrude in the longitudinal direction of the finger 9 over the apexes 15 of the fingers. element 16, optionally as an elastically resilient sheet 17, which is fastened to the support plate 8 of the finger plate 7 by means of a fastening element 18. In principle, the resilient blades 17 can be positioned on the support plate 8 of the finger plate 7 by known fastening means. procedures.

The support plate 8 of the finger plate 7 has further recesses 19 from the base 14 in the direction of the fastening device 11, which serve to receive or receive the recesses. fastening the bridging element 16, respectively. The depth 20 of the further recess 19 is preferably greater than the thickness 21 of the spring sheet.

17. whereby the upper side 22 of the spring sheet 17 facing the roadway 3 is positioned with a slight offset relative to the road surface 23.

In these bridging devices 1, it is possible for the width 24 of the finger 9, measured transversely to the longitudinal direction of the finger 9, to be equally large over its entire length, while at the same time the clear width 25 of the recess 10 measured at right angles to the longitudinal direction of the finger 9 as the width 24 of the fingers 9, measured in the same direction.

Advantageously, however, the width 24 of the fingers 9 decreases from the carrier plate 8 towards the peaks 15 of the fingers 9 and at the same time the clear width 25 of the recess 10 from the base 14 towards the peaks 15 of the fingers 9 increases.

To allow the placement of the bridging element 16, respectively. of the spring sheet 17 in the recess 10 between the fingers 9, it is advantageous if the width 26 of the bridging element 16 and the bending member 16 is respectively 16 and 16 respectively. The spring sheet 17 may have the same width 26 of the bridging element 16 over its entire length, but may also be formed widening or tapering towards the tip 15 of the finger 9, but preferably the shape is adapted substantially to the recess 10, so that as close as possible to the recess 10 is obtained. The resilient sheet 17 is further fastened to the support plate 8 carrying the fingers 9, the plate 7 with the fingers 9

416 / B by means of a detachable fastening means 18, so that the spring sheet 17 or the bridging element 16 can be replaced at any time if necessary.

As further evident from the illustration of FIG. 2, opposite to each recess 10 of the toe plate 7 is located in the longitudinal direction of the road 3 with a corresponding toe 9 of another toe plate 7 and in this position, as shown in FIG. 2 and 3, a recess 10 is located at a distance of 27 from the base 14. To allow the generally known thermal expansion or shrinkage of the bridge 6 between the support 4 and the beam 5 to be compensated, the fingers 9 are formed at intervals such that between the tip 15 of the finger and the base 14 of the recess 10. The definition of the maximum allowable gap width, respectively. The distance 27 is usually based on data in the terms of reference or in relevant professional standards or mutual regulations.

In such bridging devices 1, due to the distance 27 between the tip 15 of the finger 9 and the base 14 of the recess 10, dangerous situations for cyclists in particular may occur if the wheel enters the bridging device 1 in the distance region 27. In order to prevent such dangerous situations for cyclists the fingers 9 on the lower side 29, opposite to the upper side 28 of the finger 9, the tip 15 of the finger 9 in the direction of the support plate 8 provided with the fingers 9, obliquely to the upper side 28 of the finger 9 have a guiding surface 30. bridging at least two mirrored plates 7 with the fingers 9, which are arranged offset by the width 24 of the finger 9 perpendicular to the longitudinal direction of the fingers 9. Here, the bridging element 16 or the spring blade 17 are located between the fingers 9 of the plate 7 with the fingers 9 guided by the fingers 9 of the further plate 7 with the fingers 9 in the direction away from the upper side 28 of the finger 9 and vice versa.

By arranging the guide surface 30 on the lower side 29 of the fingers 9 and projecting the fingers 9 over the bridging element 16, the bridging element 16 is deposited on the lower side 29 of the fingers 9 or on the guide surface 30 and vice versa, deforms to the upper side 28 of the finger 9.

In FIG. 2 and 3, the position of the bridging device 1 is shown. the relative position of the two plates 7 with the fingers 9, which corresponds to the state at a temperature of 15 to 25 ° C. In this case, it is evident that the bridging element 16 and 16, respectively. spring sheet 17 when changing length

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The bridge 6 deforms under the influence of the guide surface 30 on the underside 29 of the finger 9 downwards against the upper side 28 of the finger due to temperature because it slides on the guide surface 30. The bridging element 16 or the spring sheet 17 acts on the guide surface 30, respectively. on the underside 29 of the finger 9 by preloading so that it resists the load from the bicycle, which acts in the region of the distance 27 on the spring blade 17 and can assume this load without further deformation. As a result, the wheels of the bicycle cannot enter the free space at a distance of 27, so that the safety of cyclists when crossing these bridging devices 1 can be substantially increased.

This achieves that the partial region of the spring blade 17, which does not overlap the finger 9 of the further finger plate 7, tends to adapt by biasing the upper side 28 of the adjacent finger 9, thereby keeping the bicycle wheel drop as small as possible. In addition, the upper side 28 of the toe 9 is formed as a road surface 23 and the bridging element 16 or the spring sheet 17 is positioned with its upper side 22 facing the road surface 23 slightly below the upper side 28 of the finger 9. By this embodiment the member 16 or the spring sheet 17 are not loaded by other road users, i.e. cars, since the wheels of such vehicles are wider than the width 25 of the recess 10, thereby additionally preventing premature fatigue of the spring sheet material 17.

As further shown in FIG. 3, a wiper 31 consisting of a non-metallic material, preferably of plastic or polyamide, can be placed on the underside 29 of the finger 9 or in the guiding position 30, whereby the corrosion of the undersides can be minimized by contacting the bridging element 16 or the spring sheet 17. 29 fingers 9.

It is further provided that for the bridging element 16 and 16, respectively. the spring sheet 17 uses any material meeting the above-described requirements.

As further evident from FIG. 3, there is a collecting device 32 between the support 4 and the bridge beam 5, the collecting device 32 being made of flexible material and mounted on the support 4 and the bridge beam 5 to collect and drain fluids that pass through the recesses between the fingers 9.

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In FIG. Figures 4 and 5 show the states of maximum expansion respectively. The shrinkage of the bridge 6. FIG. 4 corresponds to a temperature of -35 ° C, and FIG. 5 corresponds to a temperature of +45 ° C.

The views of FIG. 4 and 5 correspond substantially to the representation of FIG. 3, so that it is possible to dispense with a further detailed description of the details since the same reference numerals are used for the same components.

In this case, the bridging device 1 in FIG. 4, the maximum distance 27 is reached in the temperature range of -35 ° C. In this position, the peaks 15 of the fingers 9 directly overlap transversely to the longitudinal direction of the fingers 9, and in that the bridging element 16 and 16, respectively. the spring spring 17 extends over the apexes 15 of the fingers 9, there is again a bearing on the underside 29 of the opposite finger 9 or on the guide surface 30.

Since the end region 33 of the spring sheet 17 or of the bridging element 16 associated with the guide surface 30, at this position of the bridging device 1 rather rests on the guide surface 30 in the region 15 of the finger 9, the deformation of the spring sheet 17 is correspondingly small and that nearly two-thirds of the distance 27 between the base 14 of the recess 10 and the apex 15 of the opposite finger 9 can be spanned by the total spring sheet 17. In the remaining third region, the depth 34 between the upper side 28 of the finger 9 and the upper side 22 of the spring sheet 17 is so small that it is hardly noticeable to affect the driving comfort or safety of the cyclist who has entered this area.

In FIG. 5 shows the position at the greatest extensibility of the bridge 6 at which the distance 27 between the base 14 of the recess 10 and the apex 15 of the opposite finger 9 is the smallest. In this position of the beam 5 and the support 4, the bridging element 16 or the spring blade 17 has the greatest deflection due to the opposite finger 9, so that the spring blade 17 protrudes against the underside 29 of the opposite finger 9.

In this position, the distance 27 is very small, or additionally partially bridged by the spring blade 17, so that, when passing such bridging devices 1, negative effects on the operation of the bicycles can be completely eliminated. The material quality of the spring sheet 17 is dimensioned such that the spring sheet 17 is at such a position

416 / B of the bridging device 1 does not show any permanent deformation, and as the distance 27 is increased by the heat, again increasing the distance 27 is sufficiently covered while maintaining the bias relative to the guide surface 30 of the finger 9.

As shown in dotted lines, in the embodiment of FIG. 4 and 5, it is again possible to place a scraper 31 on the guide surface 30 of the finger 9, which can at the same time serve to protect the steel surface provided with the conventional coating, since there is no contact between the bridging element 16 and the wiper element. The additional advantages of locating the wiper 31 can be achieved by minimizing the wear of the fingers 9 and 9, respectively. and by eliminating the occurrence of noise during the adjusting movement of the bridging device 1. In addition, on the underside of the bridging device 1 facing away from the road surface 23, as already described in connection with the preceding figures, a collecting device 32 is provided for evacuating fluids or impurities passing through the recesses 10.

The thickness 21 of the bridging element 16, respectively. The spring blade 17 shown in FIG. 3, of course, can be chosen arbitrarily, but it is expedient to be as small as possible in order not to affect the function of the bridging device 1. In this case, it is expedient to provide the bridging element 16 and / or the shear element. however, other materials having these properties or approximately these properties may also be used to achieve the elastic properties of the spring sheet 17. Such fastening of the bridging elements 16 to the support plate 8 of the finger plate 7 is arbitrarily designed to ensure the function of the bridging device 1 according to the invention.

Of course, it is also possible to promote the elastic properties of the bridging element 16 and 16, respectively, in order to ensure error-free operation. Therefore, it is possible to place a spring device 36 on the lower side 35 of the bridging element 16, which increases the biasing of the bridging element 16 in the direction of the upper side 28 of the finger 9 and 9, respectively. the pressure of the bridging element 16 with respect to the guide surface 30. This spring device 36 is shown schematically in dotted lines in a variant of the embodiment according to FIG. 5 and presses the plunger 38 by the spring force 37 onto the underside 35 of the bridging element 16 and thus increases the biasing of the bridging element 16 relative to the guide surface 30 of the finger 9.

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In FIG. 6 and 7, a further variant of the bridging device 1 or another embodiment of the finger 9 leading or deflecting the bridging elements 16 and 16 respectively is shown. spring blades 17.

In FIG. 6 shows a partial part of the bypass device. The bridging elements 16 of the opposing tines 9 have, in this variant of embodiment, from the tip 16 of the finger 9 in the direction of the support plate 8 of the plate 7 with the fingers 9 and 9, respectively. a cavity 39 extending therethrough, which serves to position and guide the bridging element 16, respectively, when the two plates 7 with fingers 9 are mutually aligned. This cavity 36 may have the same width as the bridging element 16, but is preferably in order to allow the movement of the spring sheet 17 and the spring element 17, respectively. for adjusting it in the cavity 39, the height 40 of the cavity 39 is greater than the thickness 21 of the spring sheet 17.

The cavity 39 is in order to allow for the complete takeover of the bridging element 16, respectively. of the spring blade 17 at the minimum possible distance 27 formed in the longitudinal direction from the apex 15 of the finger 9 through the base 14 of the recess 10 into the support plate 8 of the finger plate 7. The bridging element 16 is guided in this embodiment by a guide edge 41 in the region of the tip 15 of the finger 9, it is again expedient to use a scraper 31 to eliminate the above disadvantages.

In FIG. 7, the fingers 9 are opposed by the bridging element 16, respectively. a spring blade 17 formed at the bottom and at the bottom respectively; on their underside 29 as open U or C profiles 42. By this embodiment of the fingers 9, in the region of the tips 15 of the fingers 9, the fingers 9 again have a guiding edge 41 which can be provided with a wiper 31 which serves to guide or deflect the bridging element 16. optionally, a flexible sheet

17. By the embodiment of FIG. 6 and 7 it is possible to dispense with the guide surfaces 30 which extend perpendicularly to the direction of the support plate 8 of the plate 7 with the fingers 9, see Figures, since they are replaced by the guide edges 41 By this preferred embodiment the fingers 9 can be formed. more stable than is evident in the figures. By this more stable embodiment of the fingers 9, it is also possible to form the fingers 9 with the cavity 39 or the fingers 9 themselves as open U or C profiles 42 on their underside 29.

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By means of the leading edge 1 offset in the direction of the road surface 23, the deformation of the bridging element 16 and the bridging element 16 is reduced. the deflection in the direction of the underside 29 of the finger 9 is reduced to achieve an even better coverage in the distance 27 between the base 14 of the recess 10 and the apex 15 of the opposite finger 9. It is also possible to reduce the depth 34 between the road surface 23 and the top 22 of the bridging element 16 , which significantly increases the safety of traffic and / or driving comfort for cyclists.

In the view of FIG. 7, the bridging element 16 or spring sheet 17 is guided transversely to the longitudinal direction of the finger 9 between the two arms 43 of the U or C profile 42, whereby laterally the lateral deflection of the bridging element 16 can be safely prevented, as is also the case . 6th

In FIG. 8 shows a further variant of the arching device 1 according to the invention, wherein the guide surface 30 on the underside 29 of the finger 9 is made concave, that is, the guide surface 30 forms an arch, whose arch 44 is facing the upper side 28 of the finger 9 .

Due to the concave design of the guide surface 30, the spring sheet 17 is convexly deformed or guided. This advantageous embodiment provides a gentle guiding of the bridging element 16 or the spring blade 17 via the underside 29 of the finger 9 or the guide surface 30, whereby the service life of such a bridging element 16 can be considerably increased. the focal point is not a linear one, but a flat one.

It is further pointed out that such bridging elements 16 can of course be embedded on the upper side 28 of the finger 9 of the finger plate 9 and the bridging elements 16 can be biased by means of aids in the direction of the upper side 28 of the finger 9. C, U or T.

For the sake of order, it is further referred to that for better understanding of the finger plates 7 according to the invention, respectively. the bridging devices 1 are these finger plates 7 and 9, respectively. a bridging device 1, or parts thereof, shown partly off-scale and / or enlarged and / or reduced.

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The task of making separate solutions of the invention can be ascertained from the description.

In particular, the individual embodiments shown in FIG. 1, 2, 3, 4, 5, 6, 7, 8. The objects and solutions relating to this according to the invention are apparent from the detailed description.

Claims (21)

PATENT CLAIMS A fingerboard for bridging expansion joints in roadways (3), bridges (6) and the like, wherein a recess (10) is formed between the fingers (9) of the fingerboard (7), characterized in that: bridging arrangements (13) are located in the recesses (10), which are located from the base (14) of the recess (10) between the fingers (9) of the plate (7) with the fingers (9) in the longitudinal direction of the finger (9) ) finger (9). Finger plate according to claim 1, characterized in that the width (24) of the fingers (9), measured perpendicular to the longitudinal direction of the fingers (9), is equally large. Finger board according to one of claims 1 or 2, characterized in that the width (25) of the recess (10) measured perpendicular to the longitudinal direction of the finger (9) is equal to or greater than the width (24) of the finger (9) measured. in the same direction. Finger board according to at least one of the preceding claims, characterized in that the width (24) of the finger (9) is reduced from the support plate (8) in the direction of the tip (15) of the finger (9). Finger plate according to at least one of the preceding claims, characterized in that the width (25) of the recess (10) increases from the base (14) towards the tips (15) of the fingers (9). The toe plate according to at least one of the preceding claims, characterized in that the bridging arrangement (13) is formed by a bridging element (16) mounted on a support plate (8) of the toe plate (7). Finger board according to at least one of the preceding claims, characterized in that the width (26) of the bridging element (16) is equal to or less than the width (25) of the recess (10). 31,416 / B Finger board according to at least one of the preceding claims, characterized in that the bridging element (16) is formed by a spring blade (17), preferably consisting of spring steel. Finger plate according to at least one of the preceding claims, characterized in that the spring blade (17) is replaceably fastened by means of a detachable fastener (18) to the support plate (8) of the finger plate (7). The toe plate according to at least one of the preceding claims, characterized in that the toe plate (7) has an upper side formed as a road surface (23) and the spring leaf (17) is located with its upper side (22) facing the road surface (23) below the top (28) of the toe (9). Device for bridging expansion joints in road (3), bridges (6) and the like, with at least two mirrored plates (7) with fingers (9) offset by the width of the finger (9) transversely to the longitudinal direction finger (9), characterized in that the bridging element (16), in particular the spring leaf (17), is guided or deformed by the fingers (9) of another plate (7) with the fingers (9) in a direction away from the upper side (28) finger (9). Device according to claim 11, characterized in that the fingers (9) have, on the underside (29), from the tip (15) of the finger (9) in the direction of the support plate (8) obliquely to the upper side (28) of the finger (9). ) the guide surface (30) formed. Device according to claim 11 or 12, characterized in that the guide surface (30) is concave. Device according to at least one of Claims 11 to 13, characterized in that the peaks (15) of the fingers (9) are tapered. 31,416 / B Device according to at least one of claims 11 to 14, characterized in that the spring blade (17) is convexly deformed by the guide surface (30). Device according to at least one of claims 11 to 15, characterized in that a cavity (39) for receiving the bridging element (16) is formed in the fingers (9). Device according to at least one of Claims 11 to 16, characterized in that the bridging element (16) is formed by a T-shaped cross-section. Device according to at least one of Claims 11 to 17, characterized in that the fingers (9) or the bridging elements (16) have a U-shaped cross-section or a cross-section. C. Device according to at least one of claims 11 to 18, characterized in that the bridging element (16) is biased in the direction of the upper side (28) of the finger (9). Device according to at least one of claims 11 to 19, characterized in that the bridging element (16) is biased against the upper side (28) of the fingers (9). Device according to at least one of claims 11 to 20, characterized in that a spring device (36) is associated with the bridging element (16) for increasing the biasing of the bridging element (16) in the direction of the upper side (28) of the finger (9).