Vehicle with adjusting device for lifting and lowering a car body relative to the chassis

Abstract

The invention relates to a vehicle comprising a chassis (10), a car body (20), a chassis-integrated adjustment device (30) that can raise or lower the car body (20) relative to the chassis (10), and a component (40) attached to the car body (20). According to the invention, the component (40) is associated with a car body-integrated adjustment device (50) that is coupled to the chassis-integrated adjustment device (50) and lowers the component (40) when the car body (20) is raised, and raises the component (40) when the car body (20) is lowered.

Description

[0001] The invention relates to a vehicle comprising a chassis, a car body, a chassis-specific adjustment device that can raise or lower the car body relative to the chassis, and a component attached to the car body. Vehicles with adjustment devices are known from the prior art, for example, from documents US 2021 / 221411 A1, DE 20 2014 105377 U1, or EP 3 608 195 A1.

[0002] In rail vehicles currently in use, components mounted on the car body have the disadvantage of exhibiting relative movement relative to the rail compared to components mounted on the bogie. However, components such as antennas and radar devices must always be positioned at a fixed vertical distance from the track bed, taking tolerances into account, so such components are usually mounted on the bogie.

[0003] The invention is based on the object of providing a vehicle with a chassis-specific adjustment device which has improved properties with regard to vertical movements of the car body.

[0004] The object is achieved according to the invention by a vehicle having the features according to patent claim 1. Advantageous embodiments of the vehicle according to the invention are specified in subclaims.

[0005] According to the invention, the component is assigned a car body-specific adjustment device which is coupled to the chassis-specific adjustment device and lowers the component when the car body is raised and raises the component when the car body is lowered.

[0006] A significant advantage of the vehicle according to the invention is that the additionally provided adjustment device in the car body can cause a vertical counter-movement of car body components, whereby, for example, the vertical distance between a component mounted in the area of the car body floor and - in the case of a rail vehicle - the track bed can be kept constant or at least approximately constant.

[0007] It is advantageous if, when adjusting, the adjustment stroke of the car body's own adjustment device and the adjustment stroke of the chassis's own adjustment device are identical.

[0008] The component is preferably attached to the car body floor and the car body's own adjustment device preferably keeps the distance between the floor and the component constant.

[0009] The car body's own adjustment device and the chassis's own adjustment device are preferably pneumatically controlled devices that are connected to each other by a compressed air line.

[0010] In the latter variant, it is advantageous if the chassis's own adjustment device raises the car body in the event of a pressure increase in the compressed air line and lowers the car body in the event of a pressure drop, and the chassis's own adjustment device lowers the car body in the event of a pressure increase in the compressed air line and raises the car body in the event of a pressure drop.

[0011] The car body's own adjustment device preferably comprises a lever device with at least one lever pivotable about a pivot axis fixed to the car body, which lever is connected directly or indirectly to the adjustable component with a first lever arm and to an axially displaceable part of the car body's own adjustment device with a second lever arm.

[0012] In the latter variant, it can advantageously be provided that the first and second lever arms have an angle to each other of between 70 and 110 degrees; however, other angles may also be considered depending on the design of the lever device.

[0013] The lever device preferably has at least two groups of levers, wherein in each group the lever arms lie in the same pivoting plane and the pivoting planes of the groups are parallel to one another.

[0014] The adjustment device of the car body preferably comprises a pneumatic cylinder fixed to the car body, which is connected to the compressed air line and has an axially displaceable piston, wherein the piston is moved as a function of the respective pressure applied by the compressed air line.

[0015] In the latter variant, it is advantageous if the piston is arranged horizontally and is connected to a lever-side supported slide of the car body's own adjustment device, whereby the piston moves the slide horizontally in the event of an axial movement and the slide is raised or lowered by the lever-side support - depending on the horizontal direction of movement of the piston.

[0016] Between the carriage and at least one holding part of the adjusting device fixed to the car body, there is preferably arranged a spring device comprising one or more springs, the spring force of which raises the component to its upper end position when the pressure in the compressed air line reaches or falls below a predetermined minimum value.

[0017] The car body's own adjustment device preferably comprises a toggle lever mechanism which assumes a knee locking position in the maximum raised position of the component.

[0018] The component is preferably an antenna, a radar device, a component of a radar device or a magnet.

[0019] The vehicle is preferably a rail vehicle; the adjustment device of the car body preferably keeps the distance between the component and a track bed travelled by the rail vehicle constant.

[0020] The invention is explained in more detail below using exemplary embodiments, which show, for example: Figure 1 Components of an embodiment of a rail vehicle according to the invention, in which a component is adjustable with a car body-specific adjustment device, Figure 2 the component and the car body's own adjustment device of the rail vehicle according to Figure 1 in more detail, Figure 3 a preferred embodiment of the car body's own adjustment device of the rail vehicle according to Figure 1 in more detail.

[0021] For the sake of clarity, the same reference symbols are always used in the figures for identical or comparable components.

[0022] The Figure 1 shows components of an embodiment of a rail vehicle 1 according to the invention. One can see a chassis 10 and an adjacent car body 20.

[0023] The chassis 10 is equipped with a chassis-specific adjustment device 30, which adjusts the car body 20 relative to the chassis 10 vertically along the direction of movement Z in Figure 1 can raise or lower.

[0024] A component 40 is attached to the car body 20, which may be, for example, an antenna, a radar device, a component of a radar device or a magnet.

[0025] The component 40 is assigned a car body-specific adjustment device 50, which is coupled to the chassis-specific adjustment device 30 and lowers the component 40 when the car body 20 is raised and raises the component 40 when the car body 20 is lowered. Figure 2 shows component 40 in more detail.

[0026] In the embodiment according to Figure 1 and 2The car body's own adjustment device 50 and the chassis's own adjustment device 30 are pneumatically controlled devices that are connected to each other by a compressed air line 60. The chassis's own adjustment device 30 can, for example, comprise a compressed air spring 31 that is connected to the compressed air line 60 and expands or contracts depending on the pressure in the compressed air line.

[0027] In the event of a pressure increase in the compressed air line 60, the chassis-specific adjustment device 30 raises the car body 20; in the event of a pressure drop, the chassis-specific adjustment device 30 lowers the car body 20.

[0028] The car body's own adjustment device 50 works inversely compared to the chassis' own adjustment device 30: In the event of a pressure increase in the compressed air line 60, it lowers the component 40 and in the event of a pressure drop, it raises the component 40.

[0029] The adjustment stroke of the car body's own adjustment device 50 and the adjustment stroke of the chassis's own adjustment device 30 are preferably identical or at least approximately identical, so that the distance dZ between the track bed 11 and the component 40 attached to the car body floor 12 is kept constant or at least approximately constant by the car body's own adjustment device 50.

[0030] The car body's own adjustment device 50 comprises in the embodiment according to the Figure 1 and 2 a lever device with two groups of levers spaced apart from each other, such as the Figure 3 shows in more detail.

[0031] The Figure 3 rear group is controlled by two levers 51-52 and the Figure 3 The front group is formed by two levers 53-54. The lever arrangement according to Figure 3thus comprises a total of four levers 51-54, each of which can be pivoted about its own lever-specific pivot axis S fixed to the car body. The pivot axes S are each attached to one of two parallel holding parts 21 fixed to the car body.

[0032] Levers 51-52 of the rear group are located in a rear pivot plane, and levers 53-54 of the front group are located in a front pivot plane. The pivot planes of the two groups are parallel to each other.

[0033] A first lever arm A1 of each lever 51-54 is directly or indirectly connected to the adjustable component 40. A second lever arm A2 of each lever 51-54 is connected to a slide 57.

[0034] The angle between the first and second lever arms of the levers is preferably in an angular range between 70 and 110 degrees, but other angles are also conceivable depending on the specific structural design of the lever device.

[0035] The Figure 3 also shows a preferred embodiment of the drive of the car body's own adjusting device 50 in more detail. The adjusting device 50 according to Figure 3 has a pneumatic cylinder 55 fixed to the vehicle body, which is connected to the compressed air line 60 and comprises an axially displaceable piston 56. The piston 56 is moved, depending on the respective pressure applied by the compressed air line 60, preferably horizontally, i.e. in the transverse direction of the vehicle and / or in the longitudinal direction of the vehicle.

[0036] The horizontally arranged piston 56 is connected to the carriage 57 supported by the four levers 51-54. In the event of an axial movement of the piston 56, this displaces the carriage 57 horizontally, whereby - due to the lever-side support - depending on the direction of movement of the piston 56 - an additional vertical movement of the carriage 57 occurs, i.e., it is raised or lowered. In the embodiment according to Figure 3 When the piston 56 moves into the pneumatic cylinder 55, the slide 57 and thus the component 40 are raised; when the movement is in the opposite direction, the slide 57 and the component 40 are lowered.

[0037] In order to ensure that the component 40 is always raised in the event of a pressure drop in the compressed air line 60 and reaches a defined upper end position when the pressure in the compressed air line 60 reaches or falls below a predetermined minimum value, a spring device 58 is arranged between the carriage 57 and the car body 20.

[0038] In the embodiment according to Figure 3 The spring device comprises four springs 58a, each of which is attached with one spring end to one of the two holding parts 21 fixed to the carriage body and with its other spring end to the carriage 57 or to one of the second lever arms A2.

[0039] The spring force of the four springs 58a and thus the spring force of the spring device 58 as a whole is dimensioned such that their spring force lifts the component 40 into the upper end position and presses the piston 56 into the pneumatic cylinder 55 when the pressure in the compressed air line 60 reaches or falls below a predetermined minimum value.

[0040] The car body's own adjustment device 50 can further comprise a toggle lever mechanism (not shown in detail) which assumes a toggle locking position in the maximum raised position of the component 40 in order to securely fix the component 40 in the upper end position.

[0041] Finally, it should be mentioned that the features of all embodiments described above can be combined with each other in any way to form further other embodiments of the invention.

[0042] Also, all features of subclaims can be combined individually with any feature of any other of the claims, either individually or in any combination, to obtain further other embodiments.

[0043] Although the invention has been illustrated and described in detail by means of preferred embodiments, the invention is not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

[0044] Regardless of the grammatical gender of a particular term, persons with male, female or other gender identity are included.

Claims

1. Vehicle with a chassis (10), a car body (20), an adjusting device (30) which is separate to the chassis and can raise or lower the car body (20) relative to the chassis (10) and a component (40) attached to the car body (20), characterised in that the component (40) is assigned an adjusting device (50) which is separate to the car body and is coupled to the adjusting device (30) which is separate to the chassis and lowers the component (40) when the car body (20) is raised and raises the component (40) when the car body (20) is lowered.

2. Vehicle according to claim 1, characterised in that during adjustment the adjustable stroke of the adjusting device (50) which is separate to the car body and the adjustable stroke of the adjusting device (30) which is separate to the chassis are identical.

3. Vehicle according to one of the preceding claims, characterised in that the component (40) is attached to the car body base (12) and the adjusting device (50) which is separate to the car body keeps the distance constant between the base (12) and component (40).

4. Vehicle according to one of the preceding claims, characterised in that the adjusting device (50) which is separate to the car body and the adjusting device (30) which is separate to the chassis are pneumatically controlled devices which are connected to one another by means of a compressed air line (60).

5. Vehicle according to claim 4, characterised in that the adjusting device (30) which is separate to the chassis raises the car body (20) in the case of a rise in pressure in the compressed air line (60) and lowers the car body (20) in the case of a drop in pressure and the adjusting device (50) which is separate to the car body lowers the car body (20) in the case of a rise in pressure in the compressed air line (60) and raises the car body (20) in the case of a drop in pressure.

6. Vehicle according to one of the preceding claims, characterised in that the adjusting device (50) which is separate to the car body comprises a lifting device having at least one lever (51-54) which can be swivelled about a swivel axis fixed to the car body, said lever being directly or indirectly connected to the adjustable component (40) with a first lever arm (A1) and to an axially displaceable part of the adjusting device (50) which is separate to the car body with a second lever arm (A2).

7. Vehicle according to claim 6, characterised in that the first and second lever arm (A1, A2) have a mutual angle of between 70 and 110 degrees.

8. Vehicle according to one of the preceding claims 6 to 7, characterised in that the lifting device has at least two groups of levers (51-52, 53-54), wherein with each group the lever arms (A1, A2) are in the same swivel plane and the swivel planes of the groups are parallel to one another.

9. Vehicle according to one of the preceding claims 4 to 8, characterised in that the adjusting device (50) which is separate to the car body has a pneumatic cylinder (55) which is fixed to the car body and is connected to the compressed air line (60) and has an axially moveable piston (56), wherein the piston (56) is moved as a function of the respective pressure applied by the compressed air line (60).

10. Vehicle according to claim 9, characterised in that the piston (56) is arranged horizontally and is connected to a carriage (57), supported on the lever side, of the adjusting device (50) which is separate to the car body, wherein in the case of an axial movement, the piston (56) moves the carriage (57) horizontally and the carriage (57) is raised or lowered by the lever-side support, depending on the horizontal direction of movement of the piston (56).

11. Vehicle according to claim 10, characterised in that a spring device (58) comprising one or more springs (58a) is arranged between the carriage (57) and at least one retaining part (21), which is fixed to the car body, of the adjusting device (50), which is separate to the car body, the spring force of which raises the component (40) in its upper end position when the pressure in the compressed air line (60) reaches or does not reach a predetermined minimum value.

12. Vehicle according to one of the preceding claims, characterised in that the adjusting device (50) which is separate to the car body comprises an elbow lever mechanism, which assumes an elbow locking position in the maximum lifted position of the component (40).

13. Vehicle according to one of the preceding claims, characterised in that the component (40) is an antenna, a radar device, a component of a radar device or a magnet.

14. Vehicle according to one of the preceding claims, characterised in that the vehicle is a rail vehicle (1) and the adjusting device (50) which is separate to the car body keeps the distance (dZ) constant between the component (40) and a road bed (11) travelled on by the rail vehicle (1).

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