Hood device

Abstract

The present invention relates to a hood device for a rail vehicle, which has at least one hood that is movably suspended between a retracted position and an extended position; and has at least two guide devices for holding the hood, the two guide devices respectively guide a support element connected to the hood to be retracted and extended along a corresponding movement path, and the two guide devices are positioned at a distance relative to each other transversely to the movement direction of the hood. The hood device according to the present invention is characterized in that a synchronization device is provided, which is engaged with the support element and / or the hood so that the movement path is synchronized.

Description

Technical Field

[0001] The invention relates to a hood arrangement for a rail vehicle, comprising at least one hood which is movably suspended between a retracted position and an extended position. Background Art

[0002] A universal head cover device, for example, for a railway vehicle, to which the present invention particularly relates, is provided as a protective panel on the end side of the railway vehicle in order to protect the coupling, in particular the coupling head, from weather and dirt such as snow, ice, moisture, etc., when the coupling (or coupling) is not in use and is therefore in a disconnected state. When a coupling, for example an electric coupling and / or a mechanical traction coupling, is to be connected, the protective panel needs to be opened by moving at least one head cover in the head cover device in order to release the coupling.

[0003] In principle, the protective panel can be opened or displaced by pivoting and / or moving the hood. The invention relates to a hood arrangement with at least one movable, in particular translationally movable hood, but does not exclude the additional provision of at least one pivotable hood, as disclosed, for example, in patent document DE 20 2012 101 220 U1. A deformation system can also be provided behind the protective panel, which absorbs energy in the event of an accident.

[0004] For such a retractable and extendable bonnet, the supporting element connected to the bonnet and movable along the movement path may get stuck in the guide device, resulting in an inclined position of the bonnet, which may increase the clamping force until it gets stuck. Especially in embodiments in which the bonnet is guided by two or more guide devices, deviations during the introduction of force can lead to a drawer-like tilt. This influence depends primarily on the friction conditions and geometric dimensions that exist accordingly. For railway vehicles, both boundary conditions can only be changed in a limited and targeted manner in the area of ​​the bonnet, because the installation space at the front end of the vehicle is largely occupied by the deformation system and the automatic connector. Summary of the invention

[0005] The object of the present invention is to provide a hood arrangement for a rail vehicle in which the aforementioned problems are at least reduced and advantageously avoided and in which the risk of the hood getting stuck, in particular when retracting, is eliminated.

[0006] The technical problem according to the invention is solved by the vehicle bonnet arrangement according to the invention. Particularly advantageous and expedient embodiments of the invention are given in the description.

[0007] The hood device according to the invention for a rail vehicle, in particular a railway vehicle, comprises at least one hood which is suspended movably, in particular translationally, between a retracted position and an extended position, for example on a frame part of the railway vehicle. Instead of a (pure) translational movement, a movement along an at least partially curved path can also be performed.

[0008] At least two guide devices for holding the hood are provided, the two guide devices respectively guide the support element connected to the hood to be retracted and extended along the corresponding movement path, in particular to be retracted and extended in a purely translational manner, or the two guide devices respectively guide the support element connected to the hood to be retracted and extended along a curved movement path, and the two guide devices are positioned at a distance relative to each other transversely to the movement direction of the hood. In the case of movement of the hood along a curved movement path, the distance does not have to be defined perpendicularly to the entire movement path or movement direction, but can also only relate to a section of the movement path or can be inclined to the movement path or movement direction.

[0009] A curved movement path is to be understood in particular to mean a movement path which is characterized by one radius or by a plurality of different radii.

[0010] According to the invention, a synchronization device is provided which engages with the support element and / or the bonnet in such a way that the displacement paths are synchronized.

[0011] By synchronizing the two movement paths with the aid of a synchronization device, an inclined position of the support element in the bonnet or the guide is avoided. The synchronization device can be designed to save installation space and, if unequal movement paths of the two support elements occur, in particular during the retraction of the bonnet, the synchronization device compensates for the inequality by intervening in that the synchronization device actively moves, in particular, the support element with the relatively shorter movement path.

[0012] Preferably, the synchronization device has at least one traction element for each guide device, which traction element is connected to one of the support elements or to the hood in the area of ​​the corresponding support element at a traction connection on the one hand, and is connected to the corresponding other support element on the other hand at least indirectly, so that when the corresponding other support element is retracted, the traction element exerts a traction force on the traction connection that synchronizes the movement path.

[0013] The traction element is, for example, designed to be flexible, in particular as a belt, a wire, a rope, a webbing or the like.

[0014] According to one embodiment of the invention, the traction element is designed as a Bowden cable.

[0015] According to a further embodiment, the traction elements are designed as belts, in particular toothed belts, which are mechanically engaged with a common shaft for their synchronization. Thus, the shaft can be driven by one of the toothed belts, i.e. the toothed belt of the relatively faster-moving support element, and drive the other toothed belt, i.e. the relatively slower-moving support element, in order to accelerate the slower-moving support element.

[0016] In particular, the shaft extends transversely to the displacement direction of the bonnet and carries or forms a gear for each toothed belt, which gear meshes with the respective toothed belt.

[0017] The guide device can be designed, for example, as a sliding bearing. However, in principle, rolling bearings, such as roller bearings or ball bearings, are also conceivable.

[0018] According to one embodiment of the present invention, the supporting element is designed as a rod, and the rod is partially or completely surrounded by the guiding device along its circumference.

[0019] According to one embodiment of the invention, the at least one hood is manually movable.

[0020] In addition or alternatively, according to one embodiment of the invention, at least one actuator is provided for moving the hood. Such an actuator can, for example, simultaneously form one of the guide devices and one of the support elements. For example, the actuator is designed as a hydraulic telescopic cylinder. Another embodiment provides that the spindle drive serves as an actuator. The actuator can also be provided as a supplement to the guide device and the support element.

[0021] The bonnet arrangement according to the invention can have a plurality of corresponding bonnets which each have a corresponding synchronization device of the type described.

[0022] According to one embodiment of the invention, the hood arrangement has, in addition to at least one hood that is displaceable, in particular translationally, one or more pivotable hoods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention will be described below by way of example with reference to exemplary embodiments and drawings.

[0024] In the attached picture:

[0025] Figure 1 A perspective view of the end side of a rail vehicle having a front cover arrangement according to the invention is shown;

[0026] Figure 2 Show Figure 1 A vehicle hood device having a support element and a guide device;

[0027] Figure 3 A schematic diagram showing an embodiment of a vehicle hood device according to the present invention;

[0028] Figure 4 A schematic diagram is shown of another embodiment of a vehicle hood device according to the present invention. DETAILED DESCRIPTION

[0029] exist Figure 1 , the end of a rail vehicle is shown, whose coupling head and, if necessary, the deformation structure are closed by a protective panel. The protective panel comprises a hood arrangement with a movable hood, which here has two translationally movable hoods 1 and two pivotable hoods 17. The translationally movable hoods 1 are each arranged in the side region and the pivotable hoods 17 are arranged in the front region. However, the invention is not limited to this purely translational mobility.

[0030] In the exemplary embodiment shown, an emergency unlocking device 18 is provided, by means of which the bonnet 1 , 17 can be unlocked so that the bonnet can be moved manually.

[0031] from Figure 2 It can be seen that the hood arrangement covers the coupling 19. It can also be seen that the hood 1 is connected to a frame or frame part 20 of the rail vehicle.

[0032] In detail, at least each hood 1 is suspended translationally movable between a retracted position and an extended position and has at least two guides 3, 4 holding the hood 1. Here, the guides 3, 4 are positioned substantially horizontally one above the other, but in principle they can also be positioned horizontally side by side.

[0033] Each guide 3, 4 encompasses a support element 5, 6 which is connected to the bonnet 1 and is in the form of a rod here, which is surrounded in the manner of a sliding bearing by the guide 3, 4. Non-(purely) translational movements can be achieved, for example, if the rod is designed to be curved.

[0034] One of the two guide-support element combinations can be designed, for example, as an actuator in order to achieve a displacement of the hood 1. Alternatively, an additional actuator (not shown) can also be connected to the hood 1.

[0035] In order to prevent the bonnet 1 or its supporting elements 5, 6 from getting stuck in the guides 3, 4 due to the inclined position of the bonnet 1, a synchronization device 9 is provided, as in Figure 3 and Figure 4 Here, the synchronization device 9 occupies Figure 2 A very small position is provided in the space 2 in the area behind the bonnet 1 , in which the coupling 19 is arranged and which can be closed by the bonnet 1 , 17 .

[0036] In accordance with Figure 3In the embodiment of the present invention, the synchronization device 9 comprises two Bowden cables 13, which each form a traction element 10, 11, which is connected with one end to a traction connection 12 of a support element 5, 6 and with the other end to the respective other support element 6, 5, here to an actuation connection 21. Between the traction connection 12 and the actuation connection 21, the Bowden cable 13 has a sleeve 22, which is only schematically shown, and which guides an inner wire 23. The sleeve 22 is supported on a fixed bearing 24.

[0037] When one of the support elements 5, 6, for example support element 5, is moved along its movement path 7 due to the force F, the other support element 6 should be moved accordingly along an equal movement path 8 in order to avoid a tilted position and the risk of the bonnet 1 getting stuck. However, if support element 5 is retracted faster than support element 6, for example because support element 6 is subject to relatively high friction in its guide 4, an undesirable path difference Δs results between the movement paths 7 and 8. In order to compensate for this, the synchronization device 9 pulls support element 6 and thus, so to speak, "hurries up" with support element 5 by overcoming the higher friction.

[0038] In detail, the support element 5 engages with the traction element 10, here with the line 23 of the Bowden cable 13, via its actuating connection 21 and thus pulls the support element behind it via the traction connection 12 on the support element 6. Conversely, if the support element 6 is to be retracted faster than the support element 5, the support element 6 pulls the support element 5 behind it via the actuating connection 21 of the traction element 11 and the traction connection 12 on the support element 5.

[0039] In the schematic top and side views of the Figure 4 In the embodiment of FIG. 1 , the synchronization device 9 comprises two toothed belts 14 as traction elements 10 , 11 , which each mesh with a gear wheel 16 which is arranged in a rotationally fixed manner on a shaft 15 .

[0040] When one of the two support elements 5, 6 moves along its movement path 7, 8, the support element pulls the toothed belt 14 assigned to the operation connection end through the operating connection end 21, so that the corresponding gear 16 rotates, and the shaft 15 and the other gear 16 rotate together with the gear. The other gear 16 in turn drives another toothed belt, which pulls the other support element 5, 6 through the traction connection end 12, so that the movement paths 7, 8 are synchronized.

[0041] Reference numerals list

[0042] 1. Hood

[0043] 2. Space

[0044] 3.4 Guidance device

[0045] 5.6 Support elements

[0046] 7.8 Movement Path

[0047] 9 Synchronization device

[0048] 10, 11 Traction elements

[0049] 12 Traction connection terminal

[0050] 13 Bowdenthal

[0051] 14 Toothed belt

[0052] 15 Axis

[0053] 16 Gear

[0054] 17 Hood

[0055] 18 Emergency unlocking device

[0056] 19 Connector

[0057] 20 frame pieces

[0058] 21 Manipulating the connection terminal

[0059] 22 Casing

[0060] 23 lines

[0061] 24 Bearings

[0062] F-Force

[0063] Δs path difference

Claims

1. A head cover device for a rail vehicle; The invention provides at least one hood (1), wherein the at least one hood is movably suspended between a retracted position and an extended position; At least two guide devices (3, 4) for holding the bonnet (1), the two guide devices respectively guide support elements (5, 6) connected to the bonnet (1) to be retracted and extended along corresponding moving paths (7, 8), and the two guide devices are positioned at a distance from each other transversely to the moving direction of the bonnet (1); It is characterized in that A synchronization device (9) is provided, which is engaged with the support elements (5, 6) and / or the bonnet (1) so that the movement paths (7, 8) are synchronized, wherein, for each guide device (3, 4), the synchronization device (9) has at least one traction element (10, 11), which is connected to the support element (5, 6) or to the bonnet (1) in the region of the respective support element (5, 6) at a traction connection end (12) on the one hand, and is connected to the respective other support element (5, 6) at least indirectly on the other hand, so that when the respective other support element (5, 6) is retracted, the traction element exerts a traction force on the traction connection end (12) which synchronizes the movement paths (7, 8), wherein the traction elements (10, 11) are flexible.

2. The vehicle hood device according to claim 1, characterized in that: The hood (1) can be suspended between the retracted position and the extended position in a purely translational manner, and the guide devices (3, 4) respectively guide the support elements (5, 6) connected to the hood (1) to be translationally retracted and extended along corresponding movement paths (7, 8), and the movement paths can be described by the guide devices respectively.

3. The vehicle hood device according to claim 1, characterized in that: The bonnet (1) is movably suspended between the retracted position and the extended position along an at least partially curved movement path, and the guide devices (3, 4) respectively guide the support elements (5, 6) connected to the bonnet (1) to be retracted and extended along corresponding at least partially curved movement paths (7, 8), and the movement paths can be described by the guide devices respectively.

4. The vehicle hood device according to claim 1, characterized in that: The traction elements (10, 11) are designed as Bowden cables (13).

5. The vehicle hood device according to claim 1, characterized in that: The traction elements (10, 11) are designed as belts which are mechanically engaged synchronously with a common shaft (15) rotating about a rotation axis, wherein the belts are toothed belts (14).

6. The vehicle hood device according to claim 5, characterized in that: The shaft (15) extends transversely to the displacement direction of the bonnet (1) and carries or forms a gear wheel (16) for each toothed belt (14), which gear wheel meshes with the corresponding toothed belt (14).

7. The vehicle hood device according to claim 1, characterized in that: The guide devices (3, 4) are designed as sliding bearings.

8. The vehicle hood device according to claim 1, characterized in that: The support elements (5, 6) are designed as rods which are partially or completely surrounded by the guide devices (3, 4) in the circumferential direction.

9. The vehicle hood device according to claim 1, characterized in that: At least one actuator is provided for moving the bonnet (1), the actuator simultaneously forming one of the guide devices (3, 4) and one of the support elements (5, 6).

10. The vehicle hood device according to claim 1, characterized in that: A plurality of hoods (1) are provided, each of which has a corresponding synchronization device (9).

11. The vehicle hood device according to claim 1, characterized in that: At least one pivotable front cover (17) is also provided.

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