EP3299519B1 - Bridge element of a portable bridge and ground contact element for a bridge element - Google Patents

Description

The invention relates to a bridge element of a relocatable bridge according to the preamble of claim 1.

From the DE 24 03 495 A1 a device for anchoring the ramp ends of bridges, in particular armored rapid bridges, on a bank or the like is known, which consists of a plate provided with elevations.

Relocatable bridges are used in both the civil and military sectors and are generally used as makeshift or temporary bridges to cross rivers, ditches or similarly designed terrains. Such relocatable bridges usually consist of several bridge elements, which are then arranged in accordance with one another and, if necessary, connected to one another at the laying location at which the relocatable bridge is to be used.

When using relocatable bridges, bridge-laying vehicles can sometimes be used, which on the one hand serve to transport the relocatable bridges, in particular the bridge elements, and possibly also to relocate the relocatable bridge. In the case of generic bridge elements that can be relocated, it is provided that these can be dismantled and transported away after the respective use. The bridge-laying vehicles already mentioned above and known per se can also be used for this purpose. However, other facilities can of course also be used for laying and dismantling the bridge elements of relocatable bridges.

In the known relocatable bridges and their bridge elements, the contact between the bridge element and the laying substrate has on which the bridge elements rest, proven to be defective and therefore disadvantageous. Because especially when heavy vehicles, such as armored vehicles or heavy trucks, collide with or drive off the bridge elements when they are laid, strong shocks and vibrations occur which can cause the laid bridge and thus also the bridge elements to move against the Move the laying substrate or change its position. In the worst case, this can lead, in the worst case, to one of the bridge elements losing its grip on the laying substrate piece by piece or suddenly and the relocatable bridge collapsing or at least becoming impassable when driving repeatedly or continuously on an installed bridge with correspondingly heavy vehicles.

To solve such problems, guy ropes and pegs are already known in the prior art, which are intended to improve the ground contact between the bridge element of the relocatable bridge and the laying substrate. However, such devices have the disadvantage that they cannot be deployed and dismantled automatically or automatically. In the military sector in particular, however, it is particularly desirable if the laying of a relocatable bridge and the dismantling can take place automatically, in particular from a protected and / or armored bridge laying vehicle. Because this minimizes the risk to people in the context of laying and dismantling the relocatable bridge.

In addition, the use of pegs and guy ropes is also disadvantageous because they can only be used after the bridge has been laid. However, apart from the problems presented above, in the context of driving over the already laid bridge, problems of contact with the ground can also arise while the bridge itself is being laid. This is because the end of a bridge element, which is also used for moving up or down, is first placed on the laying substrate as part of the laying process of a relocatable bridge placed or put down, so that at this moment a special friction effect takes place on this section of the bridge element, in particular on the contact surface between the bridge element and the substrate. Depending on the nature of the laying substrate, for example in the case of an icy laying substrate, this friction effect can be so low that there is insufficient ground contact between the bridge element and the laying substrate and the bridge cannot be laid successfully.

Proceeding from these disadvantages, the object of the present invention is to provide a bridge element of the type mentioned at the beginning which enables automated and safe installation and safe operation of a bridge that can be moved.

This object is achieved with a bridge element that has the features defined in claim 1.

According to the invention, the contact switching area of the at least one ground contact element has a surface that is profiled at least in sections and / or a surface structure with an optimized adhesive effect.

The contact mediation area of the ground contact element serves to optimize the contact between the ground contact element and the substrate and thus at least indirectly to optimize the contact between the bridge element and the substrate. According to the invention, the contact switching area has a profiled surface. The respective profile can be adapted in a particularly advantageous manner to the respective laying substrate. This allows a safe operation of a relocatable bridge with the bridge element according to the invention.

According to the invention, the contact-making area alternatively or additionally has a surface structure with an optimized adhesive effect. In this way, too, the contact between the bridge element and the laying substrate can be improved, so that reliable operation of a relocatable bridge with the bridge element according to the invention is made possible.

According to an advantageous embodiment, it can be provided that the bridge element has a plurality of ground contact elements which can be exchangeably arranged on the receptacle of the bridge element.

The multiple different ground contact elements relate to ground contact elements of different types. For it can already be provided that each ground contact element comprises multiple receptacles for the exchangeable arrangement of multiple ground contact elements. In the case of a combination of a bridge element of a relocatable bridge and several different ground contact elements, in particular several different sets of ground contact elements, a flexible exchange or flexible exchange of ground contact elements can be made due to the inclusion of the bridge element and correspondingly complementary features of each ground contact element.

For example, a bridge element of a relocatable bridge can be equipped with a first set of ground contact elements for solid, in particular asphalt, subsoil, another set of ground contact elements for switches, particularly for unpaved and / or uncompacted installation subsoil, another set of ground contact elements for a frozen installation subsurface and further sets of ground contact elements be. This makes it possible for the optimal or a preferred ground contact element or an optimal or preferred set of ground contact elements to be arranged on the bridge element and the remaining ground contact elements or sets of ground contact elements are appropriately stocked.

According to an advantageous embodiment it can be provided that the bridge element has an up and / or down section which has the at least one receptacle on an underside facing the laying substrate, the at least one receptacle being designed for the detachable arrangement of different ground contact elements. This means that, on the one hand, the bridge elements can already be provided with a corresponding ground contact element in advance of the laying process, so that the laying of the bridge at the laying location can be largely automatic or automated. At the same time, the bridge elements according to the invention make it possible that different ground contact elements can each be detachably arranged on the bridge element. This also means that ground contact elements that are tailored or adapted to the nature of the existing or expected laying substrate can be arranged on the bridge element.

In the case of a relocatable bridge, it is advantageous if the upward and / or downward section has at least one receptacle for the detachable arrangement of different ground contact elements on an underside facing a laying substrate.

The basic idea according to this further aspect is that, on the one hand, the bridge elements can already be provided with a corresponding ground contact element in advance of the laying process, so that the laying of the bridge at the laying location can be largely automatic or automated. At the same time, the bridge elements according to the invention make it possible that different ground contact elements can each be detachably arranged on the bridge element. This also means that they are tailored or adapted to the nature of the existing or expected installation substrate Ground contact elements can be arranged on the bridge element.

It can be provided that a bridge element has a plurality of receptacles for a simultaneous arrangement of a corresponding plurality of ground contact elements. It can be provided that the receptacles are each designed identically.

According to the invention it is provided that the receptacle of the bridge element has at least one recess for at least partially receiving the ground contact element, the recess having a base which is set back with respect to the underside of the bridge element. By providing a recess as part of the receptacle of the ground contact element, in particular if the recess has a bottom that is set back from the underside of the bridge element, it is particularly advantageously ensured that the bridge elements themselves have a compact structure or a compact structure with a ground contact element arranged thereon Have external dimensions, so that especially when the bridge elements are transported before and / or after the laying of the relocatable bridge, the ground contact elements do not cause any disadvantageous or disruptive enlargement of the bridge elements. This also means that the ground contact elements do not or only slightly protrude beyond the underside of the bridge elements when they are arranged on the bridge element.

Furthermore, according to all aspects of the invention, it can be particularly advantageously provided that the receptacle has at least one internal or external thread which is used for the detachable arrangement, in particular for the detachable fastening of the ground contact elements. A particularly simple and effective detachable arrangement, in particular detachable fastening of the ground contact elements, on or with the receptacle of the bridge elements can be achieved by means of device features of the ground contact elements configured in a correspondingly complementary manner. Alternatively However, alternative configurations to an internal or external thread can also be provided. For example, the receptacle can provide corresponding latching elements or quick-release locking elements, by means of which the ground contact elements can be arranged, in particular fastened, on the bridge elements.

According to a likewise particularly preferred embodiment of the bridge elements according to all aspects of the invention, it can further be provided that the internal or external thread is arranged in the region of the recess of the receptacle. The same naturally also applies to the alternative device features already described above for the arrangement, in particular for the fastening of the ground contact elements. The arrangement in the area of the recess of the receptacle has the advantage, especially, but by no means exclusively, in the case of a configuration as an external thread or a comparable element, that an overall still very compact design of the bridge elements is made possible, since the external thread is then still at the same height the underside of the bridge element or can even be set back relative to the underside of the bridge element.

Furthermore, according to all aspects of the invention, it can be particularly advantageously provided that the receptacle has a projection which is designed to engage in a correspondingly complementary counterpart in the ground contact element. The projection of the receptacle can serve, in particular in combination with the complementary counterpart of the ground contact element, for the simple and intuitive arrangement of the ground contact elements on the bridge element in an intended orientation. For example, it can be provided that the projection of the receptacle of the bridge element can only be brought into engagement with the corresponding complementary counterpart of the ground contact element in a specific and desired position of the ground contact element with respect to the bridge element. In this case, the projection is used to adjust the ground contact element.

According to all aspects of the invention, it can also be provided that the adjustment of the ground contact element takes place on the basis of the projection of the receptacle in only one or two spatial directions and accordingly one or two degrees of freedom are retained with regard to the relative arrangement between the ground contact element and the bridge element. An adjustable arrangement of the ground contact element on the receptacle of the bridge element can then take place via the projection.

Furthermore, according to all aspects of the invention, the projection of the receptacle can also further improve the stability of the arrangement of the ground contact element on the bridge element.

In a particularly advantageous development according to all aspects of the invention, it can be provided that the projection runs essentially flush with the underside of the bridge element. This also results in a particularly compact and space-saving design of the bridge elements, even with ground contact elements attached to them.

Another particularly preferred embodiment according to all aspects of the invention provides that the projection is arranged between two recesses of the receptacle in the upward and downward direction.

A further advantageous embodiment of the bridge element according to all aspects of the invention also provides that a side of the upward and / or downward section facing away from the laying substrate has a second receptacle for arranging an angular ground contact element. The provision of a second receptacle allows, on the one hand, the use of angled ground contact elements, the advantageous effects of which will be discussed in detail in the following disclosure of the invention. In addition, a second shot becomes special achieved safe and simple arrangement of the ground contact elements on the bridge element.

A likewise particularly advantageous embodiment of the bridge element according to all aspects of the invention provides that the second receptacle has a recess for at least partially receiving the angular ground contact element, the second recess in particular having a bottom which is opposite a surface of the up and / or downward section of the bridge element is set back. In this way, on the one hand, a space-saving and compact arrangement of the ground contact elements on the bridge element can be achieved. In addition, the recess opposite the surface of the entry and / or exit section allows a largely flat surface to be formed with an angular ground contact element arranged on the bridge element, so that the surface of the entry and / or exit section is easy and safe to drive on .

Likewise, according to a further preferred embodiment of the bridge element according to all aspects of the invention, it can be provided that the second receptacle has at least one recess which is used for the detachable arrangement, in particular for securing and / or fastening the ground contact element. In this way, the ground contact elements can also be secured and / or fastened from the surface of the upward and / or downward section of the bridge element. A particularly simple and effective securing and / or fastening is thereby achieved.

It is advantageous if the ground contact elements can be arranged interchangeably on a receptacle of the bridge element.

The multiple different ground contact elements relate to ground contact elements of different types. For it can already be provided that each ground contact element has multiple receptacles includes interchangeable arrangement of several ground contact elements. In the presently described combination of a bridge element of a relocatable bridge and several different ground contact elements, in particular several different sets of ground contact elements, the basic idea according to the invention is that, due to the inclusion of the bridge element and correspondingly complementary features of each ground contact element, flexible replacement or flexible exchange can be made of ground contact elements.

For example, a bridge element of a relocatable bridge can be equipped with a first set of ground contact elements for solid, in particular asphalt, subsurface, another set of ground contact elements for switches, particularly for unpaved and / or uncompacted installation subsoil, another set of ground contact elements for a frozen installation subsurface and further sets of ground contact elements be. This enables the optimal or a preferred soil contact element or an optimal or preferred set of soil contact elements to be arranged on the bridge element and the remaining soil contact elements or sets of soil contact elements to be stored accordingly.

In the case of a ground contact element for a bridge element of a relocatable bridge, it is advantageous if a base body is provided with a connecting surface for arranging the ground contact element on a receptacle of a bridge element and a contact switching area directed towards a laying substrate. It is advantageous if the contact placement area has a surface that is profiled at least in sections and / or a surface structure with an optimized adhesive effect.

This ground contact element can be used in particular in connection with the bridge element of a relocatable bridge described above become. The advantages described above thus result from the surface, which is profiled at least in sections, and / or the surface structure with an optimized adhesive effect of the contact-making area.

Another embodiment of the ground contact elements provides that the base body is angular with an angled connecting surface for arranging the ground contact element on a receptacle and a second receptacle of a bridge element.

Another embodiment of the ground contact elements provides that the connecting surface of the base body is designed for the detachable arrangement of the ground contact element on at least the receptacle of a bridge element.

In the case of a ground contact element for a bridge element of a relocatable bridge, it is advantageous if the ground contact element has a plate-like base body with a connecting surface for the detachable arrangement of the ground contact element on a receptacle of a bridge element.

In the case of a ground contact element for a bridge element of a relocatable bridge, it is advantageous if the ground contact element has an angular base body with a connecting surface for the detachable arrangement of the ground contact element on a receptacle and a second receptacle of a bridge element. A ground contact element with an angled base body and a correspondingly shaped connecting surface forms an overall angled ground contact element.

Such a ground contact element according to all aspects of the invention has different advantages in addition to the inventive increase in ground contact based on the respective choice of one or more ground contact elements as a function of the substrate. On the one hand, particularly good securing or fastening on the bridge element can be achieved.

In addition, a terminating edge of the upward and / or downward section can be effectively protected from damage.

For each shape of the ground contact elements, it is provided in a particularly advantageous manner that the connecting surface of the ground contact element is designed to be complementary to the surface of the receptacle and optionally the second receptacle of the bridge element. What is achieved thereby is that different ground contact elements with a base body with a corresponding connection surface can be detachably arranged on a bridge element, in particular can be fastened.

In addition, the design of the ground contact element with a plate-like base body ensures that both the ground contact elements themselves and the bridge elements with the ground contact elements arranged thereon have a very compact design.

When designing a ground contact element as an angled ground contact element with a correspondingly angled base plate, the larger connecting surface achieves improved power transmission.

In a first particularly preferred embodiment of the ground contact elements, it is also provided that the material and / or the surface of the contact-making area is adapted to optimize the contact with an installation substrate. In this case, the contact switching area in particular adjoins a base body that faces away from the connection surface.

For example, it can be provided that the contact-making area adjoining the base body is formed from hard rubber or another at least partially elastic material and the surface facing away from the base body has a structure that, in itself and / or in conjunction with the selected material, is particularly safe and good Contacting with a compacted, for example asphalted laying substrate enables. On the other hand, the contact switching area can be provided for a flexible installation substrate, for example made of a metal, for example stainless steel, and also to provide a surface structure on the surface facing away from the base body, which enables optimized contact with a soft or resilient substrate, in particular an optimized adhesive effect, on or with such an installation substrate.

The contact switching area can be designed in such a way that, in the case of a ground contact element arranged on the bridge element, it extends in the upward and / or downward direction over the upward and / or downward section. As a result, the contact-conveying area can be enlarged and the contact-conveying effect achieved in each case by the choice of material and surface design can be increased.

In addition, in the case of angled floor contact elements, it can be provided that the contact switching area extends from a lower leg of the floor contact element to a transition section between the lower leg and an upper leg. In the case of ground contact elements with a plate-shaped base body, it can be provided that the contact-imparting area extends over the entire surface of the base body.

According to a further preferred embodiment of the ground contact elements, it can be provided that the base body and the contact switching area are formed in one piece. In this case, the base body and the contact switching area can have the same material. For example, it can be provided that both the base body and the contact-making area are formed from metal, for example a light metal or a stainless steel. A simple and inexpensive production of the ground contact elements and an increased stability of the ground contact elements are thereby achieved.

As already mentioned above, the surface of the contact mediation area of the ground contact element facing away from the connecting surface serves to optimize the contact between the ground contact element and the ground contact element Installation substrate and thus at least indirectly to optimize the contact between the bridge element and the installation substrate. Accordingly, a further particularly preferred embodiment of the ground contact elements provides that the surface facing away from the connecting surface or the contact switching area is profiled at least in sections. The respective profile can be adapted in a particularly advantageous manner to the respective laying substrate.

In a further particularly preferred embodiment it is provided that the surface of the contact placement area facing away from the contact area or connection area or the profiled surface of the contact placement area has adhesive claws. Such adhesive claws can at least partially dig into the laying substrate and thus significantly increase the adhesive forces of the bridge element on the laying substrate. Accordingly, adhesive claws on the surface of the contact mediation area facing away from the contact area or connection area are particularly advantageous if the corresponding ground contact element is to be used in a soft or yielding substrate.

In this case, in order to achieve the advantageous effect, the area in which the adhesive claws can be arranged is not limited to an area of the contact-making area facing the laying substrate. Rather, the adhesive claws can also be arranged in an area of the contact-making area which encloses an angle of up to 90 ° with the laying substrate.

As already described above, the driving up and down of heavy vehicles on the bridge elements of a relocatable bridge leads to high loads on the relocatable bridge and its bridge elements, which can disadvantageously lead to a shift or other repositioning of the bridge elements relative to the laying substrate. Some of these loads are due to forces that result from moving up or down a bridge element in the upward or downward direction arise. Accordingly, it is particularly desirable that the proposed ground contact elements enable a sufficient improvement in the contact between the bridge element and the laying substrate, also in the direction of the approach direction and the retraction direction of the bridge elements.

Accordingly, a further particularly advantageous embodiment of the ground contact elements provides that the adhesive claws are rib-shaped and in particular extend over the entire width of the contact-making area. This also means that when the ground contact element is arranged on the bridge element, the adhesive claws preferably run perpendicular to the approach direction or departure direction, so that the adhesive claws can particularly well absorb a force in the approach direction and departure direction of the bridge elements and divert it into the substrate.

A further embodiment of the ground contact elements provides that the surface of the contact switching region facing away from the connection area is designed to be flat. The ground contact element is therefore particularly suitable for optimizing the contact between a laying substrate and a bridge element in the case of a compacted, in particular asphalted laying substrate.

Another particularly preferred embodiment of the ground contact elements provides that the base body and / or the contact-making area has at least one fastening recess which is designed to at least partially accommodate corresponding fastening means. The fastening recess or the fastening recesses can be designed, for example, as holes and be designed to receive fastening bolts or comparable fastening means. It can be provided that the fastening recess extends both through the base body and through the contact-making area. In this case it can be achieved that the fastening means, for example in the form of screw bolts, after the arrangement of the ground contact element on the bridge element are received by the ground contact element, run through the ground contact element and engage on the side of the bridge element in a corresponding fastening element, such as an internal thread of the receptacle and / or the second receptacle of the bridge element. Alternatively, however, it can also be particularly advantageous if the fastening recess is formed, for example, only in the area of the base body.

According to a particularly advantageous development, it can be provided that the fastening recess is arranged in the area of the adhesive claws. As a result, it is achieved in a particularly advantageous manner that in particular the ends of the fastening elements facing the laying substrate, such as screw heads, can be better sunk into the ground contact element and thus better protected from environmental influences.

Another preferred embodiment of the ground contact elements provides that the base body and / or the contact switching area has / have an engagement recess which is designed for at least partial engagement in a projection of a receptacle and / or second receptacle of a bridge element. As a result, a correct arrangement and a correct alignment of the bridge element with respect to the ground contact element can be achieved in a particularly simple and intuitive manner, in that the projections to be brought into engagement of the receptacle of the bridge element and the corresponding engagement recesses of the ground contact elements are designed in such a way that the mutual engagement only occurs in a certain alignment to one another is made possible, which also represents the desired or the intended alignment of the ground contact element with respect to the bridge element. Reference is hereby made to the above statements on alternative configurations of the projections. The engagement recesses of the ground contact elements are to be adapted accordingly to the receptacles and their projections.

Another preferred embodiment of the ground contact elements provides that a drive-on lip is arranged on the ground contact element. The drive-on lip of the ground contact element has the particular advantage that the ground contact element not only optimizes contact with the laying substrate, but also reduces the overall shocks and vibrations when driving up or down from the bridge element, since the height of the up and / or down or trailing edge is reduced and thereby a more even and gentle driving on and off the bridge element is made possible.

The drive-on lip is particularly preferably designed such that it protrudes under the bridge element when the ground contact element is attached to the bridge element and reduces an up and / or down edge of the bridge element, in particular reduces the height of the up and / or down edge. In this case, in the case of ground contact elements with a plate-shaped base body, the drive-up edge is preferably arranged on the base body.

In the case of a ground contact element with an angled base plate, it can be particularly advantageously provided that the drive-on lip is formed by a transition section between a lower leg and an upper leg of the base plate. As a result, the ramp lip can be made correspondingly massive and therefore robust. In addition, this configuration allows the drive-on lip to be designed in the shape of a wedge in the upward and / or downward direction, in order to enable more uniform and gentle driving up and down on and off the bridge element.

For ground contact elements with an angular base plate, it can also be provided that the adhesive claws are at least partially arranged in the transition section between the lower leg of the base plate and the upper leg of the base plate. This arrangement can improve contact with the ground depending on the nature of the sub-floor.

It can also be provided in a particularly advantageous manner that the adhesive claws are arranged at least partially on an arc of a circle of the surface facing away from the connecting surface. This, too, can lead to particularly good ground contact, depending on the substrate.

Furthermore, for a ground contact element with an angular base body, according to a further advantageous embodiment, it can be provided that fastening recesses are arranged in the lower and / or in the upper leg of the angular base body. A particularly easy and effective fastening of the ground contact element to the bridge element can thus be achieved. This is particularly true when the fastening recesses are arranged both in the lower leg and in the upper leg.

In the latter case, according to a further advantageous embodiment, particularly secure fastening of the ground contact element to the bridge element can be achieved if the fastening means received in the fastening recesses of the ground contact element can be brought into contact with one another. To this end, an advantageous embodiment of the ground contact elements provides that the fastening recesses in the lower limb and in the upper limb are designed such that the fastening means arranged or received therein run in pairs along a common axis.

The invention further comprises a bridge element of a relocatable bridge, which has a detachably arranged ground contact element in an up and down section on an underside facing a laying substrate. The bridge element and the ground contact element (s) are advantageously designed according to the embodiment described above.

Further advantages and details of the devices according to the invention are explained below with the aid of the accompanying drawings showing schematic exemplary embodiments.

Fig. 1

einen Schnitt durch einen Teil eines erfindungsgemäßes Brückenelements mit einem daran angeordneten erfindungsgemäßen Bodenkontaktelement jeweils in einer ersten Ausführungsform;

Fig. 2

einen Schnitt durch einen Teil eines erfindungsgemäßes Brückenelements gemäß einer zweiten Ausführungsform;

Fig. 3

eine perspektivische Darstellung eines Brückenelements gemäß der zweiten Ausführungsform mit einem daran angeordneten erfindungsgemäßen Bodenkontaktelement gemäß einer zweiten Ausführungsform;

Fig. 4

eine Seitenansicht der Darstellung der Fig. 3;

Fig. 5

eine perspektivische Darstellung eines erfindungsgemäßen Bodenkontaktelement gemäß einer dritten Ausführungsform;

Fig. 6

eine perspektivische Darstellung eines Brückenelements gemäß der zweiten Ausführungsform mit einem daran angeordneten erfindungsgemäßen Bodenkontaktelement gemäß einer vierten Ausführungsform;

Fig. 7

eine Seitenansicht der Darstellung der Fig. 6;

Fig.8

eine perspektivische Darstellung eines erfindungsgemäßen Bodenkontaktelements gemäß der ersten Ausführungsform;

Fig. 9

einen Schnitt durch ein Bodenkontaktelement gemäß der ersten Ausführungsform;

Fig. 10

eine Draufsicht auf das Bodenkontaktelement der Fig. 8 und 9;

Fig. 11

eine perspektivische Ansicht eines Bodenkontaktelements gemäß einer fünften Ausführungsform; und

Fig. 12

einen Draufsicht auf einen Teil eines erfindungsgemäßes Brückenelements gemäß einer ersten Ausführungsform.

Show in it:

Fig. 1

a section through part of a bridge element according to the invention with a ground contact element according to the invention arranged thereon, each in a first embodiment;

Fig. 2

a section through part of an inventive bridge element according to a second embodiment;

Fig. 3

a perspective view of a bridge element according to the second embodiment with a ground contact element according to the invention arranged thereon according to a second embodiment;

Fig. 4

a side view of the illustration of Fig. 3 ;

Fig. 5

a perspective view of a ground contact element according to the invention according to a third embodiment;

Fig. 6

a perspective view of a bridge element according to the second embodiment with a ground contact element according to the invention arranged thereon according to a fourth embodiment;

Fig. 7

a side view of the illustration of Fig. 6 ;

Fig. 8

a perspective view of a ground contact element according to the invention according to the first embodiment;

Fig. 9

a section through a ground contact element according to the first embodiment;

Fig. 10

a plan view of the ground contact element of Figures 8 and 9 ;

Fig. 11

a perspective view of a ground contact element according to a fifth embodiment; and

Fig. 12

a plan view of part of an inventive bridge element according to a first embodiment.

Fig. 1 shows a section of a bridge element 01 of a relocatable bridge. In particular, the Fig. 1 an upward and / or downward section 02 of a bridge element 01. The bridge element 01 has in the upward and / or downward section 02 an in the laid state of the bridge element one in the illustration of FIG Fig. 1 underside 03 facing the laying substrate, not shown. The underside 03 comprises a receptacle 04 for the detachable arrangement of different ground contact elements 05.

One or more further receptacles 04 can be arranged perpendicular to the plane of the drawing, distributed over the width of the bridge element, analogous to that in FIG Fig. 1 The receptacle 04 shown can be designed so that several identical or different ground contact elements can be arranged on the bridge element 01.

The receptacle 04 has two recesses 09, which serve to at least partially receive the ground contact element 05. The recesses 09 can be in areas perpendicular to the cutting plane of the Fig.1 be connected to a common recess. The recesses 09 can therefore be designed as a circumferential, self-contained groove. On average the Fig. 1 the recesses 09 each have a base 10 which is set back with respect to the underside 03 of the bridge element 01. This allows the floor contact elements 05 to be arranged in a space-saving manner. The receptacle 04 also includes two internal threads 11, into which the fastening means 12 engage and fasten the ground contact element 05 to the bridge element 01.

It can be provided that perpendicular to the cutting plane of the Fig. 1 further internal threads and corresponding fastening means are provided. Like in the Fig. 1 As can be seen, the internal threads 11 are arranged in the region of the recesses 09 of the receptacle 04.

The receptacle 04 further comprises a projection 13 which engages with a complementary counterpart in the ground contact element 05. The complementary counterpart of the ground contact element 05 is an engagement recess 14. In the example of FIG Fig. 1 the engagement between the bridge element 01 and the ground contact element 05, in particular in the area of the projection 13 and the engagement recess 14, takes place in a form-fitting manner. An exact alignment or a predefined alignment between ground contact element 05 and bridge element 01 is thus achieved. However, a certain amount of play can also be provided between the projection 13 and the engagement recess 14 in order to be able to arrange the ground contact element 05 on the bridge element 01 even if there is dirt or buildup in the engagement area.

As from the Fig. 1 As can be seen, the projection 13 is designed such that it runs essentially flush with the underside 03 of the bridge element. This also results in a particularly compact bridge element. The projection 13 is formed between the two recesses 09 of the receptacle. If the recess 09 is designed as a circumferential groove, the projection 13 can also be enclosed by the recess 09.

The ground contact element 05 comprises a plate-like base body 15. The base body 15 has a connecting surface 16 which is designed for the detachable arrangement of the ground contact element 05 on the receptacle 04 of the bridge element 01. The connecting surface 16 of the ground contact element 05 or of the base body 15 is designed to be correspondingly complementary to the receptacle 04 of the bridge element 01 for the releasable arrangement on the receptacle 04. On the side of the base body 15 of the ground contact element 05 facing away from the connecting surface 16 is a Contact switching area 17 is provided. The surface 18 of the contact switching area 17 facing away from the connecting surface 16 is adapted to a laying substrate in order to optimize the contact.

In the example of Fig. 1 the contact switching area 17 and the base body 15 are made in one piece from one and the same material. The surface 18 of the contact switching area 17 facing away from the connection surface is formed in sections with a profile and has a plurality of adhesive claws 19 which are rib-shaped.

In the example of Fig. 1 Both the base body 15 and the contact switching region 17 of the ground contact element 05 have fastening recesses 20 in which the fastening means 12 are at least partially received. The fastening recesses 20 are arranged in the area of the adhesive claws 19. As in the cut of the Fig. 1 As can be seen, the corresponding arrangement of the fastening recesses 20 has the advantage that the ends of the fastening means 12 facing the laying substrate, i.e. the screw heads 12.1, can be simply and effectively sunk in the ground contact element 05 and thus protected from environmental influences. This also ensures that the fastening means 12 can be released again if necessary, for example in order to fasten another ground contact element 05 to the bridge element 01.

The engagement recess 14 also extends through the base body 15 and the contact switching area 17. It is used for at least partial engagement in the projection 13 of the receptacle 04 of the bridge element 01. Also recognizable in the illustration of FIG Fig. 1 is a drive-on lip 21 arranged on the base body 15 of the ground contact element 05 Fig. 1 The illustrated state of a ground contact element 05 fastened to the bridge element 01 protrudes under the bridge element 01 and reduces the upward or downward edge 22 of the bridge element 01.

In the Fig.1 it becomes clear that the outer circumference of the bridge element 01 with a ground contact element 05 arranged thereon is essentially only enlarged by the downwardly protruding part of the contact switching area 17 due to the design of the receptacle 04 and the ground contact element 05. As a result, the bridge element can be transported and laid in a supported manner with a ground contact element 05 arranged thereon without problems.

The Fig. 2 shows an alternative embodiment of the bridge element 01.1. In addition to the receptacle 04, this also comprises a second receptacle 04.1, which is arranged on the side of the up and / or downward section 02 facing away from the laying substrate. With regard to the arrangement of a plurality of second receptacles 04.1, it can also be provided that the Fig. 2 further second recordings 04.1 can be provided, which optionally, as in the section of the Fig. 2 shown can be arranged above the corresponding receptacles 04. This allows the bridge element as it is in the Fig. 2 outlined is one or more identical or different angular ground contact elements are arranged as they are with reference to the Figures 3 to 7 still be described in detail.

The bridge element of the Fig. 2 comprises recesses 09 and 09.1, both in the area of the receptacle 04 and in the area of a second receptacle 04.1, which serve to at least partially accommodate an angular ground contact element. A space-saving arrangement of a ground contact element is thus achieved both on the side of the laying substrate and on the side of the surface 06 of the up and / or downhill section 02 of the bridge element 01.1 intended for driving and facing away from the laying substrate. The receptacle 04.1 can also ensure that when a ground contact element is arranged on the bridge element 01.1, the surface 06 of the entry and / or exit section 02 of the bridge element 01.1 which is intended to be driven over runs flat. For this purpose, the receptacle 04.1 can be matched to the thickness of an upper leg of an angular base body of a ground contact element.

The receptacles 04 and 04.1 each include an internal thread 11, with which a fastening of the ground contact element to the bridge element 01 via in the Fig. 2 fastening means not shown can be done. As an alternative to an embodiment as an internal or external thread 11, other fastening receptacles can also be provided. For example, the fastening can take place by hooking, the fastening means having corresponding hooks and fastening receptacles instead of the internal thread 11 having a complementary shape so that the hooks of the fastening means can be used to engage behind.

The Fig 3 shows a bridge element 01.1 and its up and / or down section 02. The surface to be driven on is in the Fig. 3 not shown. Rather, a lateral boundary 07 of the surface to be driven on can be seen. A ground contact element 05.1 is arranged on the bridge element 01.1 in the vicinity of the lateral boundary 07. The ground contact element 05.1 comprises an angular base body 15.1 with one in the Fig. 3 angular connecting surface not shown. The base body 15.1 comprises a lower leg 23 which merges into a transition section 24 which in turn merges into an upper leg 25. In the transition section 24, a contact switching area 17.1 is formed on a side facing away from the connection surface. In the contact switching area 17.1, adhesive claws 19 are formed, which are formed on an arc of a circle on the surface 18.1 facing away from the connecting surface and are also at least partially arranged in the transition section 24.

In the lower leg 23 of the ground contact element 5.1, two fastening recesses 20 are provided, in which a fastening means 12 is arranged. The fastening means 12 can be designed as screw bolts.

In the Fig. 4 is a side view of the bridge element 01.1 and the ground contact element 05.1 of FIG Fig. 3 shown. As if from the side It can be seen that the transition section 24 between the lower leg and the upper leg 25 of the angular base body 15.1 forms a drive-on lip 21.1 which, when the bridge element 01.1 is installed, makes it easier to move up and / or down from the bridge element 01.1. This also means that the drive-on lip 21.1 protects the up and / or drive-down edge 22 of the bridge element 01.1 from damage. It is also shown that the surface 06 to be driven on is flush with the upper leg 25 of the angular base body 15.1, which is achieved by the corresponding dimensioning of the in FIG Fig. 4 Not shown recess 09.1 of the second receptacle 04 is reached.

Also in the Fig. 4 the parts of the fastening means 12 which cannot be seen from the side view are shown. The fastening means 12 therefore run from fastening recesses 20 in the lower leg and in the upper leg 25 into the interior of the bridge element 01.1.

Fig. 5 shows a ground contact element 05.1 with an angular base body 15.1, which has many features with the ground contact element of Figures 3 and 4 matches. These features will not be discussed again, although corresponding reference symbols are also used in FIG. 1 to clarify the technical features Fig. 5 are reproduced. In contrast to the representations of the Figures 3 and 4 however, is in the Fig. 5 the connecting surface 16.1 of the angular base body can be seen in part. With the connecting surface 16.1 comes the ground contact element 05.1 with the receptacle and the second receptacle of the bridge element, as is shown, for example, in FIG Fig. 2 is sketched, to the plant. In the Fig. 5 it can also be seen that the ground contact element 05.1 has two fastening recesses 20.3 in the upper leg 25 of the base body 15.1. The fastening means 12.2 are arranged therein, which, together with further fastening means 12.3, which are introduced into fastening recesses 20 (not shown) in the lower leg 23, in pairs along a common Axis A run and so are in engagement with one another in the coupling section 26.

The bridge elements 01.1 the Figures 6 and 7 largely resemble those of Figures 3 and 4 . The angular base body 15.1 of the ground contact element 05.1, with the lower leg 23, the transition section 24 and the upper leg 25 as well as with the fastening recesses 20, is largely identical to the embodiment of FIG Figures 3 and 4 executed. However, the contact switching area 17.1 of the ground contact element 05.1 is designed significantly differently. It consists of a material different from the base body 15.1, for example hard rubber, and has no adhesive claws. Instead, the surface 18.1 facing away from the connecting surface is designed to be smooth and extends both over part of the lower leg 23 and over part of the transition section 24.

Fig. 8 shows the ground contact element 05 of FIG Fig. 1 without the corresponding section of the bridge element 01. The perspective view shows, inter alia, the connecting surface 16 of the plate-like base body 15, the fastening recesses 20 of the base body 15 and the contact switching area 17, which in the example of FIG Fig. 8 is also formed in one piece with the base body 15. The engagement recess 14, which extends both through the base body 15 and through the contact-making area 17, is also shown. In the perspective view of the Fig. 2 the drive-on lip 21 of the ground contact element 05 can also be clearly seen. On a surface 18 facing away from the connecting surface 16, the contact switching area 17 has a profiling which forms a plurality of adhesive claws 19 which extend rib-like over the entire width B of the contact switching area 17.

In the Fig. 8 it is shown that the fastening recesses 20 are arranged in several rows, in particular in three rows. There are two Rows arranged to the side of the engagement recess 14. Another row is arranged centrally in the middle area of the engagement recess 14.

In the sectional view of the Fig. 9 is also the ground contact element 05 in the first embodiment of FIG Fig. 1 and 8th shown. This has fastening recesses 20 in the region of the adhesive claws 19, a first section 20.1 of the fastening recess 20 being arranged essentially in the region of the base body 15 of the ground contact element 05 and a second section 20.2 of the fastening recess 20 being formed in the region of the contact-making region 17 of the ground contact element 05 . Like in the Fig. 9 shown, the sections 20.1 and 20.2 of the fastening recess 20 are arranged such that the fastening recess 20 is arranged or extends in the area of the adhesive claws 19. This has the advantage that, as well as from Fig. 1 can be seen in the Fig. 9 Fastening means 12 (not shown) do not protrude beyond the ground contact element 05 on the bottom side. The fastening means 12 are thus protected particularly well against wear.

The sectional view of the Fig. 9 the drive-on lip 21 arranged on the base body 15 of the ground contact element 05. In addition, the ground contact element 05 comprises Fig. 9 an engaging recess 14 which extends in the area between two adhesive claws 19 over the base body 15 and the contact mediation area 17 of the ground contact element 05 from the connecting surface 16 to the surface 18 facing away from the connecting surface.

In the top view of the ground contact element 05 of the Fig. 10 the connecting surface 16, the sections of the fastening recesses 20 extending from the connecting surface 16 into the base body 15 and the engagement recess 14 are also shown. In addition, the drive-on lip 21 is identified.

The Fig. 11 shows a ground contact element 05 according to a fifth embodiment, in which the surface facing away from the connecting surface 16 18 of the contact switching area 17 is flat. The base body 15 and the contact switching area 17 are also made in one piece, for example from a hard rubber. The ground contact element 05 according to the fifth embodiment is therefore particularly suitable for optimizing the contact between a laying substrate and a bridge element in the case of a compacted, in particular asphalted laying substrate. The ground contact element 05 of the Fig. 11 does not include a ramp lip. The embodiment of the Fig. 11 is also suitable as a dummy body, for covering and protecting the receptacle (s) of the bridge elements. Another material, for example metal, can also be used for this purpose.

The Fig. 12 shows a plan view of an up and / or down section 02 of a bridge element 01. The up and / or down section 02 comprises three receptacles 04, which are located on one in the Fig. 12 are arranged underside of the bridge element, not shown.

The recordings 04 are arranged side by side and allow the arrangement of three in the Fig. 12 also not shown ground contact elements. In the representation of the Fig. 12 the recordings are distributed asymmetrically over the width of the up and / or down section 02 of the bridge element 01. This can have particular advantages for the mechanical installation of the bridge elements. A different number and a different arrangement of the receptacles 04 on the upward and / or downward section 02 are also conceivable. The receptacles 04 are configured identically, so that different ground contact elements can be arranged on them.

Reference number:

01

Bridge element

01.1

Bridge element

02

Up and / or down section

03

bottom

04

admission

04.1

second shot

05

Ground contact element

05.1

angular ground contact element

06

drivable surface

07

Limitation

08

Up and down direction

09

Recess

09.1

Recess

10

ground

11

inner thread

12

Fasteners

12.1

Screw head

12.2

Fasteners

12.3

Fasteners

13

head Start

14th

Engagement recess

15th

Base body

15.1

angular body

16

Interface

16.1

angular connection surface

17th

Contact placement area

17.1

Contact placement area

18th

Surface (facing away from the connection surface)

18.1

Surface (facing away from the connection surface)

19th

Adhesive claw

20th

Mounting recess

20.1

first section

20.2

second part

20.3

Mounting recess

21st

Ramp lip

21.1

Ramp lip

22nd

Up and down edge

23

lower thigh

24

Transition section

25th

upper thigh

B.

width

A.

axis

Claims (13)

1. Bridge element of a portable bridge with at least one ground contact element (05), which is arranged on at least one attachment (04) of the bridge element (01) and which has a contact making region (17, 17.1) facing towards an installation base, wherein
   the contact making region (17, 17.1) of at the least one ground contact element (05, 5.1) has a surface (18, 18.1) that is at least partially profiled and/or a surface structure with an optimized adhesion effect, wherein
   the attachment (04) has a protrusion (13) which is set up for engagement in a corresponding counterpart in the ground contact element (05, 05.1), characterized in that
   the attachment (04) has at least one recess (09) for at least partial accommodation of the ground contact element (05, 05.1), wherein the recess (09) has a bottom (10) which is reset relative to the underside (03) of the bridge element (01).
2. Bridge element according to Claim 1,
   characterized in that
   the bridge element has multiple ground contact elements (05) which can be interchangeably arranged on the attachment (04) of the bridge element (01).
3. Bridge element according to Claim 1 or 2,
   characterized in that
   the bridge element has an ascent and/or descent section (02), which has the at least one attachment (04) on an underside (03) facing the installation base, wherein the at least one attachment (04) is designed for the detachable arrangement of different ground contact elements (05, 05.1).
4. Bridge element according to any one of the preceding claims,
   characterized in that
   the protrusion (13) is arranged between two recesses (09) in the ascent and descent direction (08).
5. Bridge element according to any one of Claims 3 to 4, characterized in that a side of the ascent and/or descent section (02) which is facing away from the installation base has a second attachment (04.1) for the arrangement of an angular ground contact element (05.1).
6. Bridge element according to any one of Claims 1 to 5, wherein the ground contact element (5) has a base body (15, 15.1) with a connecting surface (16, 16.1) for the arrangement of the ground contact element (05, 05.1) on an attachment (04) of a bridge element (01) and wherein the ground contact element (5) has a contact making region (17, 17.1) facing an installation base, which has an at least partially profiled surface (18, 18.1) and/or a surface structure with an optimized adhesive effect.
7. Bridge element according to Claim 6,
   characterized in that
   the base body (15.1) is angular with an angular connecting surface (16.1) for the arrangement of the ground contact element (05.1) on an attachment (04) and a second attachment (04.1) of a bridge element (01).
8. Bridge element according to claim 6 or 7,
   characterized in that,
   the connecting surface (16, 16.1) of the base body (15, 15.1) is designed for detachable arrangement of the ground contact element (05) on at least the attachment (04) of a bridge element (01).
9. Bridge element according to any one of Claims 6 to 8,
   characterized in that
   the material and/or the surface (18, 18.1) of the contact making region (17, 17.1) is adapted for contact optimization on an installation base.
10. Bridge element according to any one of Claims 6 to 9,
    characterized in that
    the profiled surface (18, 18.1) of the contact making region (17, 17.1) has adhesion claws (19) which are in particular rib-shaped.
11. Bridge element according to any one of claims 6 to 10,
    characterized in that
    the surface (18) of the contact making region (17) facing away from the connecting surface (16) is of a planar form.
12. Bridge element according to claim 11,
    characterized in that,
    the adhesive claws (19) extend over the entire width (B) of the contact making region (17, 17.1).
13. Bridge element according to any one of Claims 6 to 12,
    characterized in that,
    the base body (15) and/or the contact making region (17) has an engagement recess (14) which is set up for the at least partial engagement of a protrusion (13) of an attachment (04) of a bridge element (01).

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