Driver seats for rail vehicles

Abstract

The present invention relates to a driver's seat for a rail vehicle, comprising a seat (SIT), a frame (RAH), a bracket (TRG), a fastening device (BFE), and a compressed air line (DLG) for ensuring the compressed air auxiliary function of the driver's seat. The frame supporting the seat is connected to a first end of the bracket in a rotatable manner so that the seat can be rotated about the axis of the bracket. The second end of the bracket is connected to the fastening unit. The compressed air line is arranged in such a way that the compressed air auxiliary function of the seat is ensured. According to the invention, the compressed air line is embodied in a first region as at least one partial coil, which surrounds the bracket at a predetermined distance. The at least one partial coil is designed and fastened in such a way that a rotational movement of the seat causes a change in the distance of the at least one partial coil relative to the bracket.

Description

[0001] The present invention relates to a driver's seat for a rail vehicle, in particular a locomotive driver's seat.

[0002] Various driver seats with different functions are known for rail vehicles.

[0003] Simpler or less expensive rail vehicle driver seats typically have moderate suspension comfort, which is achieved by mechanical suspension.

[0004] Due to cost considerations, pneumatic and / or electrical assistance for ergonomically adjusting the driver's seat to the requirements of the rail vehicle driver is also omitted in these driver's seats.

[0005] More complex driver seats are often pneumatically assisted and have significantly higher comfort as well as additional functions (for example, they provide lumbar support or assist the rail vehicle driver when adjusting the seat).

[0006] Such compressed air-assisted driver seats have a corresponding compressed air supply, wherein a compressed air hose is usually guided inside a vertical hollow steel tube. The actual seat for the rail vehicle driver is fastened to this tube (for example by a screw connection or by a welded connection).

[0007] The compressed air hose or pipe is not rigid here, but is designed to be flexible and is guided in such a way that a rotational movement of the seat in a horizontal plane is possible.

[0008] The compressed air hose is therefore located in the area of the seat's axis of rotation, so that the seat can be rotated left and right around the axis of rotation without problem in a horizontal plane. Advantageously, the compressed air hose is only slightly twisted here.

[0009] As a further advantage, the flexible compressed air hose also allows a small forward and backward movement of the seat, which is necessary for adapting the seat to the rail vehicle driver.

[0010] A disadvantage of this design is that the limit of the possible movement range (maximum rotation angle or maximum displacement range) is reached relatively quickly.

[0011] Furthermore, the described design is not suitable for all conceivable situations. If, for example, a bearing point is present under a seat, the hollow shaft and therefore the central hose guide must be omitted.

[0012] According to the prior art, an alternative solution for off-center compressed air guidance is to arrange a single flexible hose with a large loop to enable movement. In this case, the loop is located between the fixed seat part and the rotatable or movable seat part and usually protrudes significantly there. This poses a risk of damage to the hose when people pass by or when the seat is rotated.

[0013] EP 2374654 A1 discloses a vehicle having a driver's cab with a driver's cab floor and a seat console arranged displaceably relative to the driver's cab floor, the seat console having a hose-like line guide.

[0014] Patent document US 20040051023 A1 discloses a seat arrangement for a motor vehicle, which seat arrangement has an air spring suspension system.

[0015] SUMMARY OF THE INVENTION The object of the present invention is therefore to provide an improved driver's seat for a rail vehicle, by which the aforementioned disadvantages are overcome in a cost-effective manner.

[0016] This technical problem is solved by the driver's seat for a rail vehicle according to the invention. Advantageous further developments are given in the description.

[0017] The present invention relates to a driver's seat for a rail vehicle, in particular a locomotive driver's seat, comprising a seat, a frame, a bracket, a fastening unit, and a compressed air line for providing compressed air assistance to the driver's seat. The frame, which carries the seat, is rotatably connected to a first end of the bracket, allowing the seat to rotate about the bracket's axis. The second end of the bracket is connected to the fastening unit for fastening the bracket to a control console of the rail vehicle.

[0018] The compressed air lines are arranged in such a way that the compressed air auxiliary function of the seat is ensured.

[0019] The compressed air line is implemented in a first region as a plurality of partial coils which radially surround the support at least partially at a predetermined distance. The partial coils are designed and fastened such that a rotational movement of the seat causes a change in the distance of the partial coils relative to the support.

[0020] According to the present invention, a partial coil of the compressed air line forms a spiral shape, which is wound around a bracket at a predetermined distance relative to the bracket. The driver's seat includes a seat, a frame, a bracket and a compressed air line, which ensures a compressed air auxiliary function of the driver's seat.

[0021] The seat is designed for use by rail vehicle drivers.

[0022] The frame supporting the seat is rotatably connected to the first end of the bracket, allowing the seat to rotate about the bracket's axis. The second end of the bracket is connected to the fastening unit. The compressed air line is arranged relative to the seat, frame, and bracket in such a way as to ensure the compressed air auxiliary function of the seat.

[0023] According to the invention, the compressed air line is designed in a first region as a plurality of partial coils that at least partially surround the support at a predetermined distance. The partial coils are designed and fastened such that a rotational movement of the seat causes a change in the distance of the partial coils relative to the support.

[0024] In an advantageous embodiment, the compressed air line is designed as at least one partial loop in the second region. The at least one partial loop is designed and fastened such that a translational movement of the seat causes a change in the shape of the partial loop. A translational movement, preferably in a horizontal plane, causes a change in the layout of the compressed air line and results in a compression or extension of the partial loop.

[0025] The partial coils radially surround the support. A rotational movement of the seat, which preferably occurs in a horizontal plane, causes a change in the layout of the compressed air line and results in a change in the radius of the partial coils.

[0026] In an advantageous embodiment, a pneumatic suspension or damper and / or a pneumatic seat adjustment is arranged between the frame and the seat, to which a compressed air line is supplied in order to realize or ensure the pneumatic function.

[0027] In an advantageous embodiment, the support is designed as a tube or a profile, which is arranged substantially vertically between the fastening unit and the frame.

[0028] In an advantageous embodiment, the first region of the compressed air line is connected at its first end to the fastening unit and at its second end to the frame in order to enable a change in the distance or radius of the partial coils.

[0029] In an advantageous embodiment, the second region of the compressed air line is connected at its first end to the seat and / or to the pneumatic suspension and / or the pneumatic seat adjustment, while its second end is connected to the frame to enable a partial loop shape change.

[0030] In an advantageous embodiment, the partial coils are produced from an elastically rigid material, preferably polyamide or a similar material.

[0031] In an advantageous embodiment, the at least one partial loop is produced from a flexible hose material, for example, the partial loop is realized as a fabric-covered rubber hose.

[0032] In an advantageous embodiment, the partial loop is dimensioned such that, when the seat is in a central position, it has a mechanically relaxed shape which changes, ie is stretched or compressed, during a translational movement of the seat.

[0033] In a preferred embodiment, the second end of the support is arranged opposite the first end of the support. The seat is preferably rotated about the longitudinal axis of the support.

[0034] In summary, in the present invention, rotation of the seat in a first direction (e.g. clockwise) causes the distance or radius of the partial coil to increase, while rotation of the seat in a second direction opposite to the first direction (e.g. counterclockwise) causes the radius of the partial coil to decrease.

[0035] Accordingly, translational movement of the seat in a first direction (e.g., pointing forward parallel to the direction of travel of the rail vehicle) causes stretching of at least one partial loop, while translational movement of the seat in a second direction opposite to the first direction (e.g., pointing backward parallel to the direction of travel of the rail vehicle) causes compression of at least one partial loop.

[0036] The number of partial coils or the number of coils required for the function and the associated nominal radius are adapted to the permissible, predetermined seat rotation angle and the predetermined support diameter.

[0037] The predetermined shape and position are ensured by the choice of the material for at least one partial coil or for the produced coil.

[0038] The present invention enables a durable driver seat design and thus ensures a high quality standard of the seat construction.

[0039] The invention avoids the disadvantageous, undefined deformations of the flexible compressed-air hoses known from the prior art, which deformations are caused in particular by the superposition of rotational and displacement movements.

[0040] The invention avoids friction points or kinks in the compressed air line.

[0041] The present invention makes it possible to separate the compressed air supply device into a part for the seat rotation movement and a part for the seat displacement movement.

[0042] The invention makes it possible to optimize the corresponding material of the compressed air line and thus its mechanical properties with respect to the movement profile.

[0043] The invention divides the compressed air supply device into two functions or components: a first part is provided only for compensating for the rotational movement of the seat, and a second part is provided only for compensating for the translational movement of the seat.

[0044] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. In the drawings:

[0045] Figure 1 shows the design of the driver's seat according to the present invention; and

[0046] Figure 2 Reference Figure 1 An advantageous embodiment of the driver's seat according to the invention is shown.

[0047] Figure 1 The embodiment of the driver's seat FS according to the present invention is shown.

[0048] The driver's seat FS includes compressed air-assisted functions, which are functionally ensured or implemented via a compressed air line DLG, which is part of the driver's seat FS.

[0049] The driver's seat FS has a seat SIT, a frame RAH, a bracket TRG and a fastening unit BFE.

[0050] The seat SIT is connected to a first end of a bracket TRG via a frame RAH that carries the seat SIT. A second end of the bracket TRG is connected to a fastening unit BFE.

[0051] The seat SIT is designed for a rail vehicle driver and is mounted rotatably about an axis of a frame TRG.

[0052] The fastening unit BFE is designed to fasten the bracket TRG in a control console (not shown in greater detail here) of a rail vehicle.

[0053] The compressed air line DLG is realized in a first region B1 as at least one partial coil which radially surrounds the carrier TRG.

[0054] The at least one partial coil is designed and fastened in such a way that a rotational movement of the seat SIT causes a change in the radius of the partial coil.

[0055] Consequently, the occurring rotational movement of the seat SIT is compensated by the change in radius.

[0056] The compressed air line DLG is implemented as at least one partial loop in the second region B2 . The partial loop is designed and fastened in such a way that a translational movement of the seat SIT is compensated by a change in the shape of the partial loop.

[0057] A frame RAH carrying the seat SIT is connected to a first end of the bracket TRG in a rotatably mounted manner.

[0058] The second end of the bracket TRG is arranged opposite the first end of the bracket TRG. The bracket TRG is designed as a tube, which is arranged substantially vertically between the fastening unit BFE and the frame RAH.

[0059] Arranged between the frame RAH and the seat SIT is a pneumatic suspension and / or pneumatic seat adjustment device, which is supplied by a compressed air line DLG in order to realize the pneumatic functions.

[0060] The first region B1 of the compressed air line DLG (with at least one partial coil) is connected at its first end to the fastening unit BFE and at its second end to the frame RAH. This fixes the first region so that the above-mentioned radius change of the at least one partial coil can be achieved.

[0061] In a preferred embodiment, the second region B2 of the compressed air line (having at least one partial loop) is connected at its first end to the seat SIT or to the pneumatic suspension and / or pneumatic seat adjustment, and at its second end to the frame RAH. This secures the second region, enabling the aforementioned shape change of the partial loop.

[0062] Part of the coil is made of a resiliently rigid material, such as polyamide or similar.

[0063] As shown here, a plurality of partial coils of the compressed air line DLG form a spiral that is wound around the support TRG at a predetermined distance relative to the support TRG.

[0064] Figure 2 Reference Figure 1 An advantageous embodiment of the driver's seat according to the invention is shown.

[0065] In order to protect the compressed air hose and its fastening device from damage, an additional protection plate SCHB is provided.

Claims

1. A driver's seat for a rail vehicle, - has a seat, a frame, a bracket, a fastening unit and has a compressed air line which ensures the compressed air auxiliary function of the driver's seat, -in, The frame carrying the seat is rotatably connected to the first end of the bracket so that the seat can rotate around the axis of the bracket. wherein the second end of the bracket is connected to the fastening unit in order to fasten the bracket in a control console of a rail vehicle, - wherein the compressed air lines are arranged in such a way that the compressed air auxiliary function of the seat is ensured, wherein the compressed air line is embodied in a first region as a plurality of partial coils which radially surround the support at least partially around a predetermined distance, wherein the partial coils are designed and fastened in such a way that a rotational movement of the seat causes a change in the distance of the partial coils relative to the support, It is characterized in that The partial coils of the compressed air line form a helix which is wound around the stent at a predetermined distance relative to the stent.

2. The driver's seat according to claim 1, -in, The compressed air line is designed as at least one partial loop in the second region, wherein the at least one partial loop is designed and fastened in such a way that a translational movement of the seat causes a change in shape of the partial loop.

3. A driver's seat according to any one of the preceding claims, wherein: Arranged between the frame and the seat is a pneumatic suspension and / or a pneumatic seat adjustment device, which is supplied by a compressed air line in order to realize or ensure a pneumatic function.

4. The driver's seat according to claim 1, wherein: The support is designed as a tube or a profile, which is arranged essentially vertically between the fastening unit and the frame.

5. The driver's seat according to claim 1, wherein A first region of the compressed air line is connected at its first end to the fastening unit and at its second end to the frame in order to enable a change in the distance or radius of the partial coils.

6. The driver's seat according to claim 2, wherein: The second region of the compressed air line is connected at its first end to the seat and / or to the pneumatic suspension and / or the pneumatic seat adjustment, and the second end of the second region is connected to the frame to enable a partial loop shape change.

7. The driver's seat according to claim 1, wherein: The partial coil is made of elastic rigid material.

8. The driver's seat according to claim 7, wherein: The partial coil is made of polyamide.

9. The driver's seat according to any one of claims 2 or 6, wherein: The at least one partial loop is made of a flexible hose material.

10. The driver's seat according to claim 2, wherein: The partial loop is dimensioned such that, when the seat is in a neutral position, it has a mechanically relaxed shape which changes, ie is stretched or compressed, during a translational movement of the seat.

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