ÜBERBRÜCKUNGSVORRICHTUNG FÜR EINE BEWEGLICHE BRÜCKE UND BEWEGLICHE BRÜCKE MIT EINER SOLCHEN ÜBERBRÜCKUNGSVORRICHTUNG

Lockup device for a movable bridge and movable bridge having such a bridging device

The present invention relates to a bridging device for bridging a joint gap between a fixed bridge member and a movable bridge part of a movable bridge.

Under a movable bridge in this case a bridge is to be understood, whose structure can be moved as a whole or in part. Movable bridges are typically used to temporarily enlarge a clearance below the movable part of the bridge or even release. In order to enlarge or to release the light space the movable bridge member is at least partially separated from the solid bridging member and depending on the type of bridge raised (Hubbrücke), folded (folding bridge) or in a horizontal plane is rotated (rotational bridge). Addition to those bridges, there are a variety of other portable bridges, to which this invention also relates.

In the closed state creates a joint gap between the movable bridge member and the fixed bridge member. This should have a defined size to compensate for relative movements between the parts of the structure and to avoid contact and thus tensile, compressive or torsional stresses between the adjacent building parts. The size of the structural gap is therefore chosen in the construction of the bridge that the parts of works within its normal life try not touch. The joint gap can therefore have relatively large dimensions and vary greatly depending on the load on the bridge.

For solid bridges the joint gap is bridged by means of a bridging device. This ensures that even large joint gaps can be safely crossed by the users of the bridge that so people do not fall into the joint gap or wheels of vehicles not lowered into the gap. To this extent, such a bridging device ensures a continuous transition as possible between the parts of the structure. This also results in a low-noise as possible running over with vehicles is possible leads. In contrast, so no lock-up device will be left in known movable bridges the joint gap usually easy open, arranged in or above the joint gap. The reason is that movable bridges are rare, have some smaller dimensions and are often only drive at low speeds. Therefore, the joint gap size is usually already low and the noise is less due to lower speed.

As an alternative to leaving open the structural gap designed bridging devices are sometimes used as a so-called finger joints. These include two intermeshing arranged finger plates. In this case, a finger plate on the fixed part of the structure and the other is attached to the movable member. The latter is thus moved to the movable bridge member. When closing the bridge, the fingers intermesh then one another such that the joint gap is partly bridged.

Both when leaving open the structural gap, as with use of finger joints, the maximum bridgeable gap size is limited so that vehicles do not get too sink into the joint or because the fingers of the finger plates can not be executed as many minutes.

Against this background, the object of the present invention to provide a bridging device, which makes it possible to bridge both smaller as well as larger joint column with movable bridges.

The solution of the object is achieved with a device according to claim 1 and a movable bridge according to claim 22. Advantageous developments of the invention are described in the subclaims.

The bridging device according to the invention is therefore distinguished over the prior art by the fact that it comprises a transition structure with at least one movable support and at least a positioning device for selectively positioning the at least one movable carrier, the transition structure according to one moving the movable bridge member in the joint gap between the fixed and the having movable bridge part.

Among the transition design in this case the part of the bridging device to be understood that ultimately the relative movement between the parts of the structure - in the closed bridge - offsets. however, the bridging device called the whole unit, with components on the fixed as well as movable bridge member. Under the movable support of the transition construction, each type of carrier to be understood in this case, which can move relative to the transition structure. The movable support may be part of the transition structure. but it can also be arranged in addition to the transition structure. The movable carrier may also consist of a plurality of components.

To bring the movable carrier during the closing of the bridge in the desired position, the lock-up device on a positioning device. Under the positioning any type in this case should be understood to apparatus which enables a selective positioning of the movable carrier. This can be done, for example, mechanically, but hydraulically, or electrically.

Generally speaking, the approach to the idea of ​​complex transitional structures such use, for example, Swivel Joist Transitions also on moveable bridges is based. Such complex transition designs, it is then possible to bridge formed by large strains and / or tilting joint gaps. Even with transverse strain / shifts the solution of the invention has significant advantages over a finger joint. Thus, the solution is also very good for large or wide bridges.

Conveniently, the positioning device on a pin. Under a journal is to be understood as any kind of pin or protrusion which can align the positioning device selectively mechanically by its shape and physical contact to another bridge member.

Furthermore, it is advantageous that the positioning device has at least one guide for the pin, which is preferably funnel-shaped. Such a mechanical embodiment of the positioning device is inexpensive to manufacture and resistant to failure and pollution. Preferably, a horizontal force generated by engagement of the pin in the guide that provides, ultimately, for the positioning. The pin and the leadership here can have any shape and should not be limited to funnel-shaped or round versions. but the funnel-shaped design of the guide has the advantage that positioning in both the transverse, and longitudinal direction can be carried out easily.

Conveniently, the pin and / or the guide at least a friction reducing bearing element, preferably a sliding plate of a sliding material and / or a roll on. Under the bearing element, any device is to be understood that reduces the friction between the pin and the guide. Slide plates have to roll onto the advantage that it can also transmit higher loads between pin and guide. For the sliding contact surface between the pin and the guide in this case a variety of material combinations can be considered, such as plastic-plastic, plastic-metal, metal-metal, ceramic-metal, etc.

An embodiment of the bearing elements with a roller on the other hand allows a particularly low-wear contact of pin and guide. The rollers may in turn be supported with ball bearings, roller bearings, friction bearings or the like.

Furthermore, it may be advantageous that the positioning device has at least one transverse centering and / or at least one Längszentrierung. Under a transverse centering means is to be understood that aligns the mobile support substantially in the transverse direction with respect. The course of the bridge. This is, for example, necessary when the movable bridge member moves through the process of opening and closing in the transverse direction, for example. Due to tolerances in the bearing. The same applies to the Längszentrierung, except that displacements of the movable support are substantially balanced in the longitudinal direction here, eg. Due to thermal deformations of the movable bridge member in the longitudinal direction. In this case, transverse centering and / or Längszentrierung may be bundled in a device, or there may be two separate devices each for transverse centering and for Längszentrierung. The function association transverse centering and Längszentrierung can for example be realized as a guide which engages into a funnel by means of a cylindrical pin. This combination offers the benefit of reduced number of parts and is therefore particularly economical. A separation of transverse centering and Längszentrierung allows an optimum adaptation of the positioning device to the respective requirements, such as respective displacements.

It is advantageous if the positioning device is so designed that a defined, in particular a minimum, the edge gap between the fixed bridge member and transition structure is generated. The smaller the edge gap fails in the closed bridge, the less the road is interrupted. For example, noise generated when driving the marginal gap is minimized. Furthermore, the penetration of moisture and dirt is reduced in the lockup device by a minimum edge gap.

Furthermore, it may be advantageous that the positioning device has at least one force receiving device. Under a force receiving device in this case means the forces to be understood, in particular horizontal, and / or receives moments occurring, if appropriate, between the movable support of the transition structure, and the fixed bridge member. The force receiving device consists for example. From at least one is arranged on the movable support Krafteinleitelement for example in the form of a strut, which is in contact with a closed bridge with at least one mounted on the fixed bridge member force receiving member. Thus occurring horizontal forces from the movable support or of the transition structure in the solid bridging member may be introduced, without deforming, the positioning in the closed bridge. In particular, it may also be appropriate to form the thrust resistance device in several parts. Thus the positioning can be practically embedded in the power receiving device.

It may be appropriate that the force receiving device in turn comprises at least one transverse force bearing and / or at least a longitudinal force bearing. Under a transverse load bearing is to be understood as a bearing which absorbs transverse forces in particular and / or moments to the extension direction of the bridge. Such shear forces may arise, for example, by lateral wind loads. The same is true for the longitudinal force bearing, accommodates the example. Longitudinal forces which, for example, by a collision or braking of vehicles occur. By a functional separation of the transverse and longitudinal force bearing, it becomes possible, both the lateral force bearing, and the longitudinal force bearing with respect to the forces occurring in each case optimally dimensioned. Occur, for example strong lateral forces and only low longitudinal forces, it is possible a correspondingly large cross Warehouse to build in with only a very small-scale longitudinal force camp. An association of transverse force bearing and longitudinal force inventories, however, allows a particularly economical use because the number of parts of the bridging device is reduced.

It may be suitable that are functionally combined in particular with smaller occurring bearing forces force receiving device and positioning device in an apparatus. Sub-function association this is to be understood that the positioning device is, for example, able to receive the bearing forces which occur at this point in addition to the specific positioning of the movable support when the bridge is for example traveled. Such a combination of functions can be achieved for example by appropriately designed peg, bearing elements or guides. The contact surface between pin and guide is thus initially used for selective positioning of the movable support and is then receive the bearing forces in the layer. Are conceivable as rings on the pin.

Furthermore, it may be advantageous that, in particular for medium and large occurring bearing forces force receiving device and positioning device are formed functionally separated in different devices. This is to be understood that the components that are responsible for closing the bridge for positioning, spätper must no longer absorb bearing forces. Rather accepts a specially used and dimensioned force receiving apparatus, the receiving of these forces. Especially with medium and large bearing forces this may be appropriate, since a correspondingly large dimensioning of the pin, the guide or the bearing element is no longer possible or economical. In this case it is more economical to separate the function of positioning of the function of the transmission.

It may be useful that the bridging device comprises at least a means for generating a clearance between pin and guide when the power receiving device is engaged. The agent may be for example a hydraulic or a corresponding geometric design of the contact surface. Characterized are cones and guide during closed bridge is not in contact. This ensures that the bearing forces overload the pin - and thus deform - could be absorbed by the force-receiving device.

It may be appropriate that the transition structure is a Schwenktraversen- transition structure. Under a pivot traverses junction construction a device is meant in which a plurality of current transversely to the direction of lamellae are mounted on at least one pivotable pivot traverse each other rotatably. A swivel joist transition structure is therefore particularly suitable for large and complex movements as well as for use in earthquake-prone buildings.

It is also advantageous that at least one movable support of the bridging device is a pivoting cross member of the Schwenktraversen- transition structure. In this case, the swivel traverse is thus positioned by the positioning directly.

Further, it may be advantageous that the transition structure is a Mittelträger- transition structure. In the center beam transition structure are the - also referred to as central support - lamella not pivot traverses, but only longitudinally displaceable, usually parallel and arranged longitudinally to the driving direction disposed trusses. The spacing of the lamellas can be controlled here so that the blades are moved together in the sense of a chain by stacking pushing the slats or pulling forces by receiving joint strips, which connect the slats with each other are mounted in succession. This construction guarantees a long life and maintenance-free, making them particularly economical. It may be advantageous that a movable carrier is constructed as an edge carrier, traverse and / or carriers of the transition structure at least. The positioning device is thus arranged directly on these components, which makes additional components unnecessary.

Furthermore, it may be appropriate that a movable carrier is constructed as a lifting support for the transition structure at least. Under lift carrier, a carrier is to be understood, which is arranged in addition to the transition structure and carries at least partially, if not connected to the fixed bridge member. Just when large and heavy transition structures such as swivel joists are used, such a lifting support may be needed. Since the pivot traverses are so far not used for movable bridges, the trusses are actually not in favor of the burden of the transition structure dimensioned to take, if it is not stored on a page. Therefore, it offers the possibility of either the existing carriers such as swivel traverse or normal Traverse adapting accordingly in the dimensioning and storage, or to use a separate lifting carrier. Depending on the load case, it decides which is the more economical of the two solutions.

It may be advantageous that a support bearing is provided on the movable bridge member for at least one movable carrier, in which the corresponding movable support is guided. The carrier bearing can respect. Its degrees of freedom to be adapted to the transition structure. That is, the movable support can only be moved in directions, allowing the transition structure. Movements in other directions does not allow the carrier stock, so as to prevent damage to the transition structure.

Logically, the bridging device is made waterproof. This example by joint tapes are used between the slats. This prevents rain water or salt water penetrates in the winter between the bridge parts and uncontrolled running of the bridge downwards. It may be appropriate that at least one rain discharge gap in the edge and / or is arranged in the guide. Even if the marginal gap is made as small as possible, it can still happen that a minimal amount of surface water entering into this gap. This penetrating surface water through a discharge rain, such as a rain gutter underneath the lip gap can be selectively derived. Also the guide of the positioning device can come into contact with moisture in the open bridge. For example, rain entering into the hopper of leadership. Here again, there is a rain discharge may be appropriate.

It may be advantageous that the transition structure is arranged on the fixed bridge member. For example, if the movable bridge is a folding bridge. Thus, the transition structure must not be moved to the movable bridge member. Specifically, in folding bridges by a complete mesh driving is avoided, which would lead to noise nuisance. Moreover, subsequent positioning is difficult with such a strong deflection of the transition structure. Furthermore, the weight of the movable bridge portion would increase, which is unfavorable for the bearings and drives.

On the other hand, it may also be expedient that the transition structure is arranged on the movable bridge member. This, for example, when there is little space for installation of the transitional structure to the fixed component. Especially when it is a lifting bridge or swing bridge, wherein the movable part is moved only in one plane, a displacement of the transition structure by the movement is not expected.

As mentioned above, the invention extends not only to the bridging device as such, but also to an equipped with an inventive bridge means movable bridge. In this case, any types of movable bridges come into consideration, such as rotary bridges, swivel bridges, movable bridges and the like.

The invention will be explained with reference to shown in the drawings embodiments. Therein show examples:

Fig. 1 is a schematic representation of a lift bridge according to the invention;

2 shows a longitudinal section through an inventive lockup device according to a first embodiment, in a state in which the movable bridge member is being lowered onto the fixed bridge member.

3 shows a longitudinal section through an inventive lockup device according to a second embodiment.

Figure 4 is a plan view of a part of the bridging device according to the invention according to a third embodiment.

Fig. 5 is a longitudinal section along the line AA in Figure 4.

In the figures of the various embodiments, like reference numerals for like parts are used. Fig. 1 shows a schematic representation of a lift bridge 5 according to the invention with two fixed bridge parts 3 and an intermediate movable bridge part 4 which can be raised and lowered. In the raised position while the clearance is increased under the movable bridge member 4, z. to enable as a greater headroom. In the lowered state, however, the passage of the bridge over the movable bridge part 4 is made possible. In the lowered state of the movable bridge member 4 joints column 2 are each 3. These joints column 2 are respectively bridged by an inventive lock-up device 1, which can be seen but in Fig. 1 due to the scale is not between the movable bridge part 4 and a fixed bridge member.

Fig. 2 shows a section through a first embodiment of such a bridging device according to the invention 1. In the sectional view of the movable bridge member 4 is shut down. The lockup device 1 has a transition structure 6, a movable support 7, and a positioning device. 8

In order to accommodate the weight of the transition structure 6 at least in the condition of start-up and shutdown, at least one lifting-beam 20 is mounted below the crossover design. 6 The lifting support 20 is mounted on a first side on the movable bridge member. 4 On a second side of the lifting beam 20 a carrier edge 18 of the transition structure 6, and a hollow box 21 is next to the positioning device 8 is mounted. Lift carrier 20, positioning device 8, edge support 18 and the hollow box 21 form a functional unit, producing a targeted terminal of the transition structure 6 on the side of the fixed bridge member 3 in the closed bridge. In this embodiment, thus, a unit of at least lift carrier 20, edge support 18 and the hollow box 21 is to be understood by the movable support 7, which is selectively positioned by the positioning device. 8

In this case, in the down state of the movable bridge member 4 remains 22 (not shown in Fig. 2) are between hollow box 21 and a fixed bridge member 3 is a peripheral gap. This marginal gap 22 should thereby be as small as possible to prevent the ingress of dirt and liquid and to ensure uniform possible road crossing. For the smallest possible margin gap 22, the positioning device 8 is ultimately responsible. The positioning device 8 comprises a pin 9 on the side of the movable bridge member. 4 On sides of the fixed bridge member 3 8, the positioning of a guide 10, which is funnel-shaped in this embodiment. Between pin 9 and the guide 10 a bearing member 11 is arranged which is mounted on the pin present. 9 In the first embodiment, the bearing element 1 1 slide plates 12 made of plastic. When lowering of the movable bridge part 4 of the pin 9 engages in the funnel-shaped guide 10 and is thereby selectively positioned. Characterized a minimum edge gap will ultimately allows 22 between hollow box 21 and fixed bridge member. 3

Further 1, the lock-up device to a power receiving device fourteenth The power receiving device 14 consists of two presently 14b arranged in alignment on the pin 9 Krafteinleitelementen 14a and two force absorbing elements. Their arrangement on the one hand allows lowering and raising of the movable bridge member 4 in the vertical direction, but on the other hand, forces and moments arising in the closed bridge, are added, so that it does not result in damage to approximately the edge support (18) or the pin (9 ) comes. The forces and moments can arise, for example, by driving the bridge with vehicles or by thermal expansions of the bridge parts.

The transition structure 6 provides for a smooth transition road. To receive the force of vehicles traveling over it, has the transition structure 6 a plurality of blades 28 which are arranged transversely to the direction of travel. Between the fins 28 of the transition structure 6 seals are mounted (not shown in Figure 2) to prevent the passage of moisture. Liquids that penetrate with open bridge into the guide 10, are derived by a rain discharge 23b. In addition, a rain discharge 23a prevents below the lip gap 22 so that moisture entering through the peripheral gap 22, can pass from the bottom of the lockup device. 1

Fig. 3 shows a second embodiment of the bridging device 1. This corresponds essentially to the first embodiment and differs mainly in terms of positioning device 8. During inserted slide plates 12 were used in the first embodiment, in this case rollers 13 are used. These are well suited for smaller bridges having smaller and lighter expansion joints. 6 These smaller Transitions 6 require less force for positioning. The rollers 13 thereby ensure a smooth-running together from pin 9 into the guide 10. For medium and large contact forces such rollers 13 are however less suitable since they can transmit not sufficiently large forces. Through the interaction of the shape of pins 9, including roller 13, guide 10, Krafteinleitelement 14a and force receiving member 14b is achieved thereby that 4 there is no contact between the guide 10 and roller 13 is in the lowered end position of the movable bridge member, but the upper end of the pin on Krafteinleitelement practically applied. Thus it is achieved that no forces and torques on the outer end of the positioning device 8 acting in the closed state of the bridge, which could lead to an undesired deformation of the pin.

Fig. 4 shows a plan view of a portion of a lock-up device 1 of the invention according to a third embodiment. It is seen from above the fixed bridge member 3, the edge of gap 22, the hollow box 21, designed as a pivot traverse transition structure 106 transition structure 6, and the movable bridge member. 4 The underlying the blades 28 pivot trusses 16, and the lift carrier 20 are shown in phantom. The pivot trusses 16 are arranged slightly inclined to the traveling direction and pivotally connected to the slats 28th This arrangement provides a uniform Unfolding and approach of all blades 28 is ensured. The lifting carrier 20 are movable on the movable bridge member 4 is fixed. They allow one hand, a movement of the swivel traverse transition structure 106 in the scope of its designed for her freedom. On the other hand take the lifting beams 20 at power up of the bridge, the weight of the pivoting crossmembers transition structure 106 including the hollow box 21. Characterized a corresponding guide is ensured and prevents overloading of the crosspieces 19th

Fig. 5 shows a section through the lock-up device 1 shown in FIG. 4 along the line AA. Here, the various components of the bridging device will be apparent, on the one hand provide for the positioning during the lowering of the movable bridge member, and on the other hand receive the horizontal forces. The lock-up device 1 in this case has a positioning. 8 The positioning device 8 is formed by a pin 9 and a bridge member attached to the fixed guide 3 10th As bearing elements 1 1 slide plates are used. Thereby, it is possible that the positioning device 8 also serves as lateral force bearing 26th Thus, it takes on in the lowered condition also forces occurring transversely to the direction of travel between the hollow box 21 and a fixed bridge member. 3

In this embodiment, since the longitudinal forces can be significantly higher than the transverse forces, is three separate longitudinal force bearing 27 are mounted here, but they are not seeing all due to the sectional representation. The separation of positioning device 8 and longitudinal force bearing 27 allows optimum dimensioning of the respective components.

Furthermore, a separate device for Längszentrierung 25 is mounted. The functional separation of transverse centering and Längszentrierung also permits optimum adaptation to the conditions (eg. The gap to be bridged dimension). So greater longitudinal displacements can be selectively positioned as a cross-shifts, for example. In order to accommodate the weight of the transition structure 6 and of the box girder 21, when the bridge is opened and is, lift carrier 20 are also used in this case.

LIST OF REFERENCE NUMBERS

1. bridging device

2. joint gap

3. fixed bridge member

4. movable bridge member

5. movable bridge

6. Transitional construction

7. Portable Vehicle

8. positioning

9 pin

10. leadership

1 first bearing element

12. sliding plate

13. role

14. Power Cradle

14a. Krafteinleitelement

14b. Force-receiving element

15. carrier bearings

16. Tilt Traverse

17-preg transition structure

18 edge support

19. Traverse

0. lift carrier

1. hollow box

2. marginal gap

3a. rain transfer

3b. Rain drainage in the edge gap

4. Cross-positioning

5. longitudinal positioning

6. Cross Warehouse

7. Longitudinal Warehouse

8. slats

06. Swivel Joist transition structure