WO2012022348A2

WO2012022348A2 - Vehicle and supporting apparatus

Info

Publication number: WO2012022348A2
Application number: PCT/DE2011/075179
Authority: WO
Inventors: Lutz Hanselmann
Original assignee: Krauss-Maffei Wegmann Gmbh & Co. Kg
Priority date: 2010-07-28
Filing date: 2011-07-26
Publication date: 2012-02-23
Also published as: EP2598698B1; WO2012022348A3; ES2586670T3; EP2598698A2; DE102010036690B4; DE102010036690A1

Abstract

The invention relates to a vehicle, in particular a bridge-laying vehicle, with a supporting apparatus (2) having a supporting shield (4) which is movable to and fro between a supporting position and a driving position via a lifting apparatus (3), wherein the lifting apparatus (3) has at least one length-variable lifting element (5), wherein the lifting element (5) is arranged pivotably about an axis (A) extending in the longitudinal direction of the vehicle. The invention furthermore relates to a supporting apparatus, in particular for arrangement on bridge-laying vehicles, having a supporting shield (4) which is movable to and fro between a supporting position and a driving position via a lifting apparatus (3), wherein the lifting apparatus (3) has at least one length-variable lifting element (5), wherein the lifting element (5) can be arranged pivotably about an axis (A) extending in the longitudinal direction of the vehicle.

Description

Vehicle and support device

The invention relates to a vehicle, in particular a bridge laying vehicle, having a supporting device with a support plate movable back and forth between a support position and a driving position via a lifting device, wherein the lifting device has at least one length-variable lifting element. The invention further relates to a supporting device, in particular for arrangement on bridge laying tools, with a support plate that can be moved back and forth between a support position and a driving position by means of a lifting device, wherein the lifting device has at least one length-adjustable lifting element. 26.07.2011 Our sign: 11 -13-142

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In many types of commercial vehicles, it is due to changing in operation, unfavorable in certain situations balance conditions required to provide a support device through which the vehicle can be supported in addition to its actual footprint against the ground.

For example, in bridge laying vehicles which receive a transportable bridge on their upper side and lay it at a place of use via corresponding laying devices, unfavorable center of gravity relationships arise, in particular during the laying process. When installing such bridges, the total center of gravity resulting from the weight of the vehicle and the bridge elements arranged thereon partially migrates beyond the contour of the vehicle, which is why in such situations there is a risk that the state of the vehicle will become unstable and at worst worse Case even threatens to tip.

To avoid such problems, support devices are known which provide an additional support point next to the contour of the vehicle in such situations. The support devices have a lifting device over which a support plate can move from a higher driving position to a support position when needed, in which the support plate rests against the ground and forms an additional support point for the vehicle, which even with unfavorable center of gravity the risk of tipping the vehicle significantly reduced.

The lifting devices for raising or lowering the support plate have at least one length-variable lifting element, for example in the form of a hydraulic cylinder, which is coupled to the support plate. 26.07.2011 Our sign: 1 1 -13-142

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In the case of military bridge laying vehicles, it is often provided that one end of the hydraulic cylinder is connected in a pivotable manner to a trailing arm connected to the support shield, wherein the other end of the hydraulic cylinder is pivotably articulated to a vehicle-fixed articulation point about a pivot axis extending transversely to the vehicle longitudinal direction. Upon actuation of the hydraulic cylinder, the hydraulic cylinder begins to pivot and with this the trailing arm in a vehicle longitudinal plane, so that the support plate arranged at the free end of the trailing arm begins to pivot along a circular path.

In this type of supporting device, it has proven to be disadvantageous that the support plate pivots along a circular path, which can lead to a visual restriction of the driver especially in the relatively high driving position.

It is an object of the invention to specify a vehicle or a supporting device of the type mentioned above, which in the driving position assumes a compact position which does not restrict the driver's view.

This object is achieved in a vehicle of the type mentioned gel ö, that the lifting element is pivotally mounted about an axis extending in the vehicle longitudinal axis. In a supporting device of the type mentioned above, the object is achieved by gel ö that the lifting element is pivotable about an extending in the vehicle longitudinal axis can be arranged. 26.07.2011 Our sign: 11 -13-142

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The pivotable arrangement of the lifting element on an axis extending in the vehicle longitudinal direction allows a space-saving movement of the support plate between the driving position and the support position. The support plate does not pivot away from the vehicle, but moves translationally in a plane parallel to the outer contour of the vehicle, whereby the support device can assume a compact position in the driving position.

In an embodiment of the invention, it is proposed that the lifting element is arranged between a vehicle-fixed receptacle and the support plate. The lifting element can be connected directly to the receptacle and / or the support plate. It is also conceivable that the lifting element is indirectly connected to the receptacle and / or the support plate, for example via an intermediate element such as a strut or similar elements. A structurally advantageous embodiment provides that a second lifting element is provided. This lifting element can be arranged mirror-symmetrically with respect to the first lifting element, for example, to a vertical vehicle longitudinal center plane, resulting in a symmetrical with respect to the vehicle longitudinal median plane derivative of the supporting forces.

A further embodiment of the invention provides that at least one strut is provided for receiving transverse forces acting on the support plate. The length-variable lifting element, which may in particular be a hydraulic cylinder, is usually designed or suitable only for receiving forces acting in its longitudinal direction. About the strut can be added to some extent on the support shield acting transverse forces, such as may occur when lowering the support plate on a non-flat surface. Advantageously, the number of lifting elements should correspond to the number of struts. 26.07.2011 Our sign: 1 1 -13-142

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According to a further embodiment, it is proposed that the struts are arranged between the lifting elements. In particular, two struts can be arranged between two lifting elements. Both the arrangement of the struts and the arrangement of the lifting elements can, with respect to a vertical longitudinal center plane of the vehicle, be mirror-symmetrical.

In a further embodiment, it is proposed that a support plate-side end of the lifting element is articulated with the support plate end of the strut.

In this context, it is further proposed that the struts have an angling. The angling may in particular be in an angular range of 30 ° to 50 °, preferably in the range of 40 °.

Another embodiment provides that one end of the struts is hinged to the receptacle and the other end of the struts is translationally coupled to the support plate. Due to the translationally movable coupling with the support plate, it can be lowered in a purely vertical plane, resulting in a small space requirement for the movement of the support plate between its support and driving position. The derivative of the forces on the support plate takes place in the vertical direction.

According to an alternative development, it is proposed that one end of the struts is articulated on the support plate and the other end of the struts is coupled translationally movable with the receptacle.

Of particular advantage is an embodiment, according to which the struts are designed and arranged such that their translationally movable 26.07.2011 Our sign: 1 1 -13-142

End moves due to a change in length of the lifting element translationally relative to the support plate or the recording.

A further advantageous embodiment of the invention provides that the struts are arranged laterally of the lifting elements. Also in this embodiment, it is advantageous if two struts and two lifting elements are provided, which are arranged mirror-symmetrically to a vertical longitudinal center plane of the vehicle. In this context, it is proposed in a further embodiment that the struts have an articulation. About the articulated can be made a length compensation of the struts when raising or lowering the support plate. Another embodiment provides that the struts are pivotally connected to the receptacle and the support plate. Compared to a translationally connected to the support plate strut, this embodiment has the advantage of less susceptibility to errors, since contamination of the support plate and similar impairments are not able to affect the articulated connection of the strut with the support shield.

According to a particularly advantageous embodiment of the invention it is proposed that the supporting device is designed such that in the driving position all elements of the supporting device are lower than a highest point of the recording. With the help of such an embodiment of the support device is achieved that the driver's view is not affected when the support plate is raised. This results in a viewed in a vertical direction compact design of the supporting device in the driving position. 26.07.2011 Our sign: 1 1 -13-142

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A further embodiment provides that the support device is designed such that the support plate moves as a result of an actuation of the lifting device in a plane. In contrast to a movement along a circular path resulting from the movement along a plane requires little space when transferring the support plate from a support position to a driving position and vice versa.

Finally, it is proposed in a further embodiment that the support device is connected via a one-point interface with the vehicle, which may be configured in particular as a flange connection. While in the prior art several lifting elements must be mounted at different locations of the vehicle, the connection via a one-point interface offers advantages, especially when retrofitting already in operation vehicles with a supporting device according to the invention.

Further details and advantages of a vehicle according to the invention and a supporting device according to the invention are explained below with the aid of the attached, partially highly schematic drawings of exemplary embodiments. Show:

1 is a perspective view of a vehicle equipped with a support device, Fig. 2 is a front view of a vehicle according to FIG. 1 with a in the

Driving position located support plate,

3 is a side view as shown in Fig. 2, 26.07.2011 Our sign: 1 1 -13-142

Fig. 4 is a front view of a vehicle according to FIG. 1 with a in the

Support position located support shield,

5 is a side view as shown in Fig. 4,

6 is another frontal view,

7 is a front view of a second embodiment with a located in the driving position support plate,

8 is a side view as shown in Fig. 7,

Fig. 9 is a frontal view of the vehicle of FIG. 7 in the

Supporting position located supporting shield,

10 is a side view of the vehicle of FIG. 9, and

Fig. 11 is a further frontal view of the vehicle of FIG. 7 to

Fig. 10.

1 shows a perspective view of a vehicle 1 with a supporting device 2 arranged in the front region thereof. The vehicle 1 is a bridge laying vehicle, as used in the military sector for laying mobile bridges. Such bridges, which are also referred to as pioneer bridges, are composed of a plurality of bridge elements, not shown in FIG. 1, which often have considerable weight and are stored on the upper side of the vehicle 1. By means of the vehicle 1, the bridge elements to a site 26.07.2011 Our sign: 11 -13-142

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transported and laid over a likewise not shown in Fig. 1 laying device.

Since unfavorable center of gravity relationships result when laying the bridge elements due to their position protruding far beyond the contour of the vehicle 1, the supporting device 2 is provided in the front region of the vehicle 1, which provides an additional support point via a support plate 4. Subsequently, details of the connection of the supporting device 2 to the vehicle 1 will first be discussed, before the functioning of the supporting device 2 will be explained in detail.

As can be seen from the illustration in FIG. 1, the supporting device 2 is connected to the vehicle 1 via a one-point interface 20. The one-point interface 20 forms the only connection point between the vehicle 1 and the support device 2. The one-point interface 20 is formed in the manner of a flange with a vehicle-fixed flange plate 21, to which a receptacle 6 of the support device 2 is connected.

In addition to this mechanical connection of the supporting device 2 to the vehicle 1, the interfaces for the supply lines required for operating the supporting device 2 are also provided in the region of the one-point interface 20, for example connections for the production of a hydraulic connection.

The one-point interface 20 permits attachment of the supporting device 2 to the vehicle 1, which requires only a few assembly steps, and is particularly suitable as a retrofit solution for vehicles already in operation. 26.07.2011 Our sign: 1 1-13-142

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witness 1, which should be retrofitted with a corresponding support device 2. In the case of such retrofitting, in addition to the provision of corresponding supply connections, only one flange plate 21 has to be fastened to the outer contour of the vehicle 1, for example by welding. Subsequently, the receptacle 6 is connected by screwing with the flange plate 21 and the supply lines connected.

As will be explained in detail below, the support device 2 is characterized in particular by the fact that the support plate 4 back and forth in a small space between a support position, as shown in Fig. 1, and a higher-lying driving position is movable back and forth and in the driving position occupies a compact position.

For raising or lowering the support plate 4, a lifting device 3 is provided which, in the embodiment according to FIG. 1, has two length-adjustable lifting elements 5 designed as hydraulic cylinders. In the area between the lifting elements 5 are two struts 7 for receiving on the support plate

4 acting transverse forces provided. Both the struts 7 and the lifting elements 5 are hinged at one end within the U-shaped in cross-section receptacle 6 pivotally about extending in the vehicle longitudinal direction axes A. Support shield side, the lifting elements 5 are hingedly connected to the support plate side end 7.1 of the struts 7. The articulation point in each case of a lifting element 5 in the receptacle 6 forms together with the articulation point of the associated strut 7 and the connection point of the lifting element 5 with the support plate end 7.1 of the strut 7 a kind of triangle, whose by the lifting element

5 formed side is variable in length. Upon actuation of the lifting element. 5 2011 Our sign: 11 -13-142

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changes its length, which change the angle of the triangle and the support plate 4 can be raised or lowered.

The support plate end 7.1 of the struts 7 is also connected to the Ab support plate 4, wherein the corresponding connection point is arranged translationally relative to the support plate 4 movable. By actuating the lifting element 5, the support plate 4 can be raised, for example, from the support position shown in FIG. 1 to a higher driving position, wherein the support plate end 7.1 of the strut 7 relative to the support plate 4 translationally moved to vehicle outside, see. also FIGS. 2 and 4.

Fig. 2 shows the vehicle 1 in a schematic front view, in which the support plate 4 is in its driving position. It can be seen that all the elements 5, 7 of the lifting device 3 are arranged mirror-symmetrically with respect to a vertical longitudinal center plane L of the vehicle 1. The elements 5, 7 of the lifting device 3 do not extend beyond the receptacle 6 in the vertical direction, which also forms a highest point of the supporting device 2 in the driving position. In the driving position shown in Fig. 2, the supporting device 2 assumes a compact position, which is why the view of the driver, for example, looks over a viewing element 30 from the vehicle interior to the outside, is not affected by the support device 2. For lowering the support plate from the in Figs. 2 and 3 illustrated driving position, the lifting elements 5 are extended, whereby they begin to pivot in the receptacle 6 about an axis A extending in the vehicle longitudinal direction. At the same time, the struts 7 also begin to pivot in a corresponding direction. To the pivoting movement of the struts 7 to 26.07.2011 Our sign: 11 -13-142

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simplify, they have a settlement 7.3. Both the pivotal movement of the lifting elements 5 and those of the struts 7 takes place in a vertical vehicle transverse plane, cf. Fig. 3 and Fig. 5, which allows movement of the support plate 4 in a small space.

In order to allow for the length compensation required relative movement of the end of the supporting plate side end 7.1 of the struts 7 relative to the support plate 4, the support plate 4 is provided with a slot guide 8, within which the end 7.1 can slide guided. After the lifting cylinders 5 have reached their maximum length, the support plate 4 is in the support position shown in FIGS. 4 and 5. As can be seen, the lifting device 3 is designed such that the support plate 4 can be lowered not only up to a level 40 of the vehicle 1, but up to an underlying level 41, which is preferably at least 20 cm lower than the stand - Level 40, in order to achieve a reliable supporting effect even on sloping terrain.

Moreover, as can be seen from the representation in FIG. 6, the supporting device 2 according to the invention permits, due to the pivotal mobility of the elements 5, 7 of the lifting device 3, axes A extending in the vehicle longitudinal direction to a certain extent also an inclined position of the support plate 4 relative to the horizontal, as this is also required to compensate for uneven terrain. In the case of such terrain bumps, the support can be made such that the hydraulic cylinder force-controlled in each case transmit the same force on the support plate 4 until the end position shown in Fig. 6 is reached.

A further embodiment of the invention is shown in FIGS. 7 to 11. 26.07.2011 Our sign: 1 1 -13-142

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In contrast to the embodiment described with reference to the illustrations in FIGS. 1 to 6, the lifting elements 5 are provided between the struts 7 in this embodiment. The lifting elements 5 are articulated about a common, extending in the vehicle longitudinal direction axis A and supporting plate side hingedly connected to the support plate 4. The struts 7 are connected to receive acting on the support plate 4 transverse forces with both the receptacle 6 and the support plate 4 hinged. In order to avoid tilting of the struts 7 during a change in length of the lifting elements 5, the struts 7 according to this embodiment, an articulation 7.4.

The support device 4 described above or a vehicle 1 with such a support device 4 are characterized in particular in that the support plate 4 is movable in a purely translatory movement along a vertical plane, resulting in a compact geometry of the support device 4 in the driving position. In the driving position all elements of the support device 4 are deeper than a highest point of the receptacle 6, so that the view of the driver is not affected by the support plate 4 raised by this. In addition, the support forces are derived in a purely vertical direction.

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Reference numerals:

1 vehicle

2 support device

3 lifting device

4 support plate

5 lifting element

5.1 end

6 recording

7 strut

7.1 end

7.2 End

7.3 Angling

7.4 articulation

8 slot guide

20 one-point interface

21 flange plate

30 viewing device

40 level

41 level

A axis

L longitudinal center plane

Claims

26.07.2011 Our sign: 11-13-142 15 Claims:

1. vehicle, in particular bridge laying vehicle, with a Abstützvor- direction (2) via a lifting device (3) between a support position and a driving position movable back and forth support plate (4), wherein the lifting device (3) at least one length-variable lifting element (5 ) having,

characterized,

in that the lifting element (5) is arranged such that it can pivot about an axis (A) extending in the vehicle longitudinal direction.

2. supporting device, in particular for arrangement on bridge laying vehicles, with a lifting device (3) movable between a supporting position and a driving position supporting shield (4), wherein the lifting device (3) at least one length-variable lifting element (5) having,

characterized,

in that the lifting element (5) is pivotable about an axis (A) extending in the vehicle longitudinal direction.

3. Vehicle or supporting device according to claim 1 or claim 2, characterized in that the lifting element (5) between a vehicle-fixed receptacle (6) and the support plate (4) is arranged.

4. Vehicle or supporting device according to one of the preceding claims, characterized by a second lifting element (5).

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5. Vehicle or supporting device according to one of the preceding claims, characterized by at least one strut (7) for receiving on the support plate (4) acting transverse forces.

6. Vehicle or supporting device according to claim 5, characterized in that two struts (7) in the region between two lifting elements (5) are arranged.

7. Vehicle or supporting device according to one of the preceding claims, characterized in that a support-plate-side end (5.1) of a lifting element (5) with the support plate-side end (7.1) of a strut (7) is articulated.

8. Vehicle or supporting device according to one of the preceding claims, characterized in that the struts (7) have an angled portion (7.3).

9. Vehicle or supporting device according to one of the preceding Ansprems, characterized in that one end (7.2) of the struts (7) on the receptacle (6) is articulated and the other end (7.1) of the struts (7) translationally movable with Support plate (4) is coupled.

10. Vehicle or supporting device according to one of claims 1 to 8, characterized in that one end (7.1) of the struts (7) on the support plate (4) is articulated and the other end (7.2) of the struts (7) translationally movable with the recording (6) is coupled.

11. Vehicle or supporting device according to one of claims 9 or 10, characterized in that the struts (7) are formed and arranged such that their translationally movable end due

26.07.2011 Our sign: 11 -13-142

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a change in length of the lifting element (5) translationally relative to the support plate (4) or the receptacle (6) moves.

12. Vehicle or supporting device according to one of claims 1 to 5, characterized in that two lifting elements (5) in the area between see two struts (7) are arranged.

13. Vehicle or supporting device according to claim 12, characterized in that the struts (7) have an articulated joint (7.4).

14. Vehicle or supporting device according to one of claims 12 or 13, characterized in that the struts (7) are pivotally connected to the Aufnahme (6) and the support plate (4).

15. Vehicle or supporting device according to one of the preceding claims, characterized in that the supporting device (2) is designed such that in the driving position all elements of the supporting device (2) are lower than a highest point of the receptacle (6).

16. Vehicle or supporting device according to one of the preceding claims, characterized in that the supporting device (2) is designed such that the support plate (4) as a result of actuation of the lifting device (3) moves in a plane.

17. Vehicle or supporting device according to one of the preceding claims, characterized in that the supporting device (2) is connected via a one-point interface with the vehicle, which is designed in particular as a flange connection.