COMMERCIAL VEHICLE CABIN WITH A SEATING / LIED PROTECTION

Description

[0001] The invention relates to a commercial vehicle cabin with a seat-reclining device. The invention further relates to a commercial vehicle with such a commercial vehicle cabin.

[0002] The cab (driver's cab) of a commercial vehicle, preferably a truck, serves the driver, especially on long journeys, not only for controlling the vehicle but also typically as a rest area during breaks and rest periods. Such truck cabs usually comprise a front and a rear section. The front section contains a driver's seat, typically one or more passenger seats, and a cockpit area for operating the vehicle. The rear section of the cab serves as a living space, for example, when the vehicle is not in use. It typically contains additional furnishings for non-driving-related use, such as a bed, storage solutions, etc.

[0003] DE 42 15 111 A1 discloses a two-part sleeping berth in the cab of a truck, wherein the sleeping berth is divided along a partial joint running transversely in the direction of the vehicle into a base berth and a swiveling section that can be pivoted up against the rear wall of the cab and is designed as a U-shaped bracket. When the swiveling section is pivoted up, it forms a backrest, while the base berth functions as a bench seat.

[0004] US Patent 6,622,321 B1 discloses a convertible piece of furniture comprising a main cushion held by a support structure and a backrest that is movable relative to the main cushion between an upright, reclined position and a lowered, forward-facing position. The backrest is articulated and consists of an inner and an outer back section. In the upright, reclined position, the outer back section extends upward from the inner back section and supports the user's upper back. In the lowered, forward-facing position, the outer back section moves downward and inward relative to the inner back section into a discreet stowable position. A connection between the support structure and the back sections enables this movement.

[0005] The CH 555 755 shows a sleeping berth for truck cabs, which is arranged in the free space behind a driver's seat and a passenger seat below the rear windows of the cab. The sleeping berth is designed to fold lengthwise in the middle and, when folded up, can be detachably fastened to the rear wall of the cab.

[0006] The JP S 55157020 U relates to a commercial vehicle cab with a low driver's seat and good lateral visibility. Behind the driver's seat is a two-part bed consisting of a fixed section and a movable section, positioned transversely to the direction of travel. The movable section can be folded upwards and stowed away when not in use. The system includes swivel and locking mechanisms as well as a safety belt to secure the person lying down.

[0007] However, in existing solutions, these non-driving-specific applications are only represented on a limited and reduced scale. This is primarily due to the limited space available in the driver's cab. Integrating a suitable sleeping area poses a particular problem, as a comfortable sleeping area for the driver occupies a relatively large amount of space that can then no longer be used for other purposes. While there are already attempts to solve this problem, for example, by making the sleeping area mattress extendable through special internal structures, these are technically complex and correspondingly expensive to manufacture, as well as cumbersome and complicated to use.

[0008] The invention is therefore based on the objective of providing an improved technology for equipping a commercial vehicle cabin, which can prevent or at least reduce the disadvantages of previous solutions. In particular, it is an objective of the invention to provide a sleeping option for a commercial vehicle cabin that is both comfortable to use and cost-effective to manufacture.

[0009] These tasks are solved by the features of the independent claim. Advantageous further developments are specified in the dependent claims and the description.

[0010] A first general aspect of the present disclosure relates to a commercial vehicle cabin. The commercial vehicle cabin is preferably a driver's cab of a truck.

[0011] The commercial vehicle cab includes a seat / reclining device located in the rear section of the cab. The rear section is the area of ​​the cab furthest from the front when viewed from the front. The seat / reclining device can also be referred to as a sofa bed or a sleeper sofa. It comprises a first section, hereinafter referred to as the backrest section, and a horizontally oriented second section, hereinafter referred to as the reclining section. The backrest section is movable between a first and a second operating position, preferably to allow for either a sofa configuration (in the first operating position) or a bed configuration (in the second operating position).

[0012] In the first usage position (in the couch configuration of the reclining device), the backrest is preferably arranged substantially vertically and / or spaced apart from the reclining section in such a way that the backrest can be used as a backrest and the reclining section as a seat for a user of the reclining device. In other words, in the first usage position (couch configuration), the backrest is arranged relative to the reclining section in such a way that the reclining device can be used as a couch and / or seat for an adult in the first usage position. "Substantially vertical" in this case means that the backrest is arranged in an orientation that allows the user to lean against it and assume an ergonomic sitting position, and / or that the backrest forms an angle between 0° and 20° with a normal to the horizontally oriented reclining section.The backrest section is positioned above the reclining section.

[0013] In the second position, the backrest section is positioned horizontally next to the reclining section and at the same height to widen the lying surface. This means that the backrest section is moved from its essentially vertical position above the reclining section in the first position to a horizontal position at the same height. In this position, the reclining section and the backrest section are adjacent to each other, creating a wider lying surface for the user.

[0014] A seat-reclining device designed in this way offers the advantage of taking up little space in its sofa configuration (in the first position of use of the backrest) and also serving as an ergonomic seat, for example, during short breaks. In the second position of use of the backrest (bed configuration), it allows the user to assume a comfortable sleeping position. Because the backrest serves a dual purpose, i.e., it can be used either as a backrest or as a reclining surface, the sleeping area can be widened simply by changing the position of the backrest. Accordingly, a complicated, extendable, or fold-out mechanism for widening the sleeping area is unnecessary, resulting in a cost-effective and easy-to-use seat-reclining device.

[0015] Preferably, in the first position of use, the distance between the lower edge of the backrest section and the upper surface of the reclining section is less than 50 cm, more preferably less than 30 cm, and / or less than the width of the reclining section. The width of the reclining section is understood to be its dimension as viewed in the direction of travel. The reclining section can, for example, have a width between 55 cm and 65 cm, which corresponds to a typical width of a sleeping area in a commercial vehicle cab. The backrest section can, for example, have a width between 25 cm and 35 cm, so that the entire, widened reclining surface has a width between 80 cm and 100 cm, which allows for a comfortable sleeping position for the user. Preferably, both the backrest section and the reclining section have padding on all surfaces that come into contact with the user when sitting or lying on the seat-reclining device.

[0016] According to a further embodiment, the backrest section in the second usage position is positioned between the driver's seat of the commercial vehicle cab and a passenger-side side wall of the cab. Additionally or alternatively, the width of the commercial vehicle cab minus the width of the driver's seat can be greater than the length of the backrest section. Accordingly, the backrest section has a length suitable for being positioned next to the driver's seat (from the perspective of a forward-driving direction), i.e., it fits between the passenger-side side wall of the cab and the driver's seat. Furthermore, the backrest section can be moved between the first and second usage positions without requiring adjustment of the driver's seat. This means that the driver's seat can remain in its normal driving position when the backrest section is moved between the first and second usage positions.A simple and quick conversion of the seating / lying device between the couch configuration and the bed configuration is advantageously enabled.

[0017] In another embodiment, the lying section extends from a passenger-side side wall of the commercial vehicle cab to an area behind a driver's seat, preferably to a driver-side side wall of the commercial vehicle cab. This offers the advantage of providing the user with a lying surface of the greatest possible length. The length of the lying surface here refers to a horizontal direction perpendicular to the forward direction of travel, which in a (normal) bed corresponds to the distance between the head and foot ends. The lying section can be longer than the backrest section. In this case, the user can, for example, position themselves on the lying surface so that their feet rest at the driver-side end and their head at the passenger-side end.This provides the user with both a wide lying surface in the upper body area, for example for comfortably resting the arms, and a sufficient length of lying surface for stretching out the legs.

[0018] Alternatively, the length of the reclining section can essentially correspond to the length of the backrest section, and the seat-reclining device can optionally include a second reclining section positioned horizontally behind the driver's seat and at the same height as the reclining section. In this case, the entire extended reclining surface consists of at least three elements: the passenger-side reclining section, the passenger-side backrest section, and the second reclining section located behind the driver's seat. In the first usage position, the two reclining sections form a seating / reclining surface, and the backrest section forms a backrest. In the second usage position, all three parts form a single reclining surface. In this way, a flexible seat-reclining device can be created that is adapted as precisely as possible to the spatial conditions of the commercial vehicle cab.

[0019] The commercial vehicle cab also includes an adjustment mechanism for moving the backrest section between the first and second usage positions. This allows for particularly easy and reliable movement of the backrest section between these positions. The adjustment mechanism may have a swivel mechanism and / or a manual operating mechanism to move the backrest section.

[0020] The adjustment mechanism comprises at least one swivel arm, which is attached at one end to the backrest section and at the other end pivotably attached to the reclining section or a support or support structure of the reclining section. Preferably, the adjustment mechanism comprises two swivel arms, for example, one at each of the opposite ends of the backrest section. A swivel arm is particularly simple and reliable to use and also cost-effective to manufacture and assemble. The swivel arm(s) can / can preferably be strong enough that the backrest section is self-supporting in the second position of use, i.e., it does not need to rest on another structure to bear the user's weight. In other words, the adjustment mechanism, preferably the at least one swivel arm, can simultaneously serve as a support structure to freely support the backrest section in the second position of use.

[0021] The swivel arm, used to adjust the height of the backrest in its primary position, is designed as a telescopic arm. This allows the backrest height to be adjusted to achieve the most ergonomic seating position for the user in the primary position (couch configuration). In particular, the backrest height can be adjusted to accommodate users of different heights.

[0022] According to another embodiment, the adjustment mechanism can include a locking device. This locking device allows the backrest section to be locked in the first and / or second operating position. This secures the backrest section against unintentional movement, thus reducing the risk of injury to the user. The locking device can, for example, include a ratchet clamp, a locking bolt, a snap lock, or similar mechanism to secure the backrest section in a desired operating position.

[0023] In a further advantageous embodiment, the adjustment mechanism comprises two swivel arms. The backrest section also includes a cushion support and a cushion that surrounds the support on both sides. The swivel arms are attached to the support on opposite sides. The support can, for example, be a frame-, grid-, and / or plate-shaped support element, e.g., made of metal, plastic, or wood, which is oriented essentially vertically in the first operating position. The cushion surrounds the support on both sides; that is, the cushion comprises a first part, which faces a user sitting on the seat (or reclining section) as a back cushion, and a second part, which is located on the side of the support facing away from the seated user.When the backrest section is moved into the second usage position (bed configuration) using the adjustment mechanism, the second section is located on the upper side and thus forms part of the sleeping surface. The two parts of the upholstery can be identical or adapted to the respective usage configuration, for example, by selecting a different mattress and backrest upholstery material.

[0024] Since the swivel arms of the adjustment mechanism are each mounted on the upholstery support, and the upholstery surrounds the support on both sides, there is always a gap between the swivel arms and the surface of the backrest section that the user comes into contact with. This prevents the swivel arms from interfering with the user's position.

[0025] According to a further embodiment, the commercial vehicle cabin also includes a cover for the sleeping surfaces of the reclining section and backrest section in the second usage position. The cover is attached to a sleeping surface of the backrest section that faces the rear of the commercial vehicle cabin in the first usage position. Preferably, the cover is detachably attached. The cover is preferably automatically positioned on the sleeping surface of the reclining section and backrest section by moving the backrest section from the first to the second usage position. Advantageously, this provides the user with a particularly simple way to convert the seat-reclining device from a couch configuration to a bed configuration in just a few steps, preferably only one step, with the cover automatically being installed.

[0026] The cover for the lying surface can be made of textile material, such as a breathable material typically used as a mattress topper. It can also include additional padding, such as gel foam, to make the lying surface even more comfortable for the user. Because the cover only extends over the lying surface when the backrest is in its second position, it is subject to less wear and tear in the first position, for example, when the user uses the seat for eating during breaks. If the cover is detachably attached, it can be easily removed and washed.

[0027] According to a further development, one edge of the sleeping surface cover can be attached along an upper edge of the sleeping section facing the rear of the commercial vehicle cab. Another edge of the sleeping surface cover can be attached along an upper edge of the backrest section, running parallel to the rear of the commercial vehicle cab in the first usage position. This attachment ensures, for example, that when the backrest section is moved, e.g., pivoted, from the first to the second usage position, the sleeping surface cover is automatically positioned on the sleeping surface.

[0028] According to another design variant, the shape and surface area of ​​the mattress cover can correspond to the shape and surface area of ​​the widened mattress surface. The mattress cover thus covers the entire mattress surface as precisely as possible in the second usage position. This advantageously ensures that the entire mattress surface is covered by a continuous mattress cover without wrinkles, creating a particularly comfortable sleeping surface. Furthermore, in the first usage position, unnecessary discomfort for the user from excessive mattress cover material is avoided.

[0029] Preferably, the cover for the lying surface is attached only along the outer edges of the lying surface. For example, the cover can be attached to two opposite edges. In the area between the outer edges, the cover rests loosely on the lying surface. This ensures that the cover does not slip during use, while simultaneously allowing for easy conversion of the seat / reclining device between the first and second positions in as few steps as possible, preferably one.

[0030] In a further advantageous embodiment, the cover of the lying surface is detachably attached to the backrest, preferably by means of a hook-and-loop fastener. Additionally or alternatively, the cover of the lying surface is detachably attached to the lying surface, preferably by means of a zipper. In this way, the cover of the lying surface can be easily removed and serviced, e.g., washed or repaired. At the same time, the cover of the lying surface is secured against unintentional slippage during use.

[0031] According to a further advantageous embodiment, the commercial vehicle cab includes a plate-shaped and / or strip-shaped extension arranged at the lower part of a lying surface of the backrest section. In the second position of use of the backrest section, the plate-shaped and / or strip-shaped extension covers a gap between the lying surface and the backrest section. In this second position, the lying surface consists of at least two parts (lying surface and backrest section), between which a small gap may occur, depending on the design of the edges of the lying surface and the backrest section, e.g., the edges of the upholstery. The extension is arranged on the backrest section such that, like the backrest section, it is positioned essentially vertically and above the lying surface in the first position of use.This means the user can sit on the reclining section and lean against the backrest without being disturbed by the extension. Moving the backrest to its second position brings the extension and the backrest into a horizontal alignment. The extension is positioned on the backrest in such a way that, in this position, it covers any gap between the reclining section and the backrest. The extension can be flat and / or strip-shaped. For example, it can consist of a solid core, such as one made of plastic, and a padded outer layer, such as one made of foam. This provides the user with a smooth, even lying surface.

[0032] In a further advantageous embodiment, the commercial vehicle cab also includes a passenger seat whose backrest can be moved forward into a substantially horizontal stow position, wherein the backrest portion of the seat-reclining device is arranged above, and preferably offset from, the backrest of the passenger seat in the stowed position in the second use position. In this way, the space available in the commercial vehicle cab can be used as efficiently as possible. If the backrest is designed to be spaced apart from the backrest of the passenger seat in the second use position, i.e., cantilevered, the passenger seat can be configured according to any design, as long as it includes a backrest that can be moved forward, e.g., folded down, which further increases the flexibility in designing the commercial vehicle cab.

[0033] According to another general aspect of the present disclosure, a commercial vehicle comprising a commercial vehicle cabin as described herein is provided. In other words, the features described in this document in connection with the commercial vehicle cabin itself are also disclosed and claimable in connection with the commercial vehicle. Here, a commercial vehicle can generally be understood as a vehicle that, by its design and equipment, is specifically designed for the transport of persons, the transport of goods, or the towing of trailers. Preferably, the commercial vehicle is a truck. Users typically spend a considerable amount of time in a commercial vehicle, so a commercial vehicle cabin comprising a seat-reclining device as described above is particularly advantageous.

[0034] The preferred embodiments and features of the invention described above can be combined in any way desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. These show: Figures 1a-1 are a schematic illustration of a commercial vehicle cabin with a seat-lying device according to one embodiment; Figures 2a-2 are a schematic illustration of a seat-lying device with a lying surface cover according to a further embodiment; and Figure 3 is a schematic representation of a motor vehicle with a commercial vehicle cabin according to a further embodiment of the invention.

[0035] The embodiments shown in the figures are at least partially identical, so that similar or identical parts are provided with the same reference numerals and, to avoid repetition, reference is also made to the description of the other embodiments or figures for their explanation.

[0036] Figure 1a Figure 1 shows a schematic representation of a commercial vehicle cab 1. Drivers of commercial vehicles, especially on long journeys, spend a considerable amount of time in the cab 1. To optimally support the driver during their time in the cab 1, additional equipment can be installed there that is not primarily intended for controlling the vehicle, but rather, for example, for relaxation during the driver's breaks.

[0037] This is in the Figure 1aIn the illustrated commercial vehicle cab 1, a seat-reclining device 3 is arranged behind a driver's seat 9 and an (optional) passenger seat 22. The seat-reclining device 3 is characterized by the fact that it can be used in both a couch configuration and a bed configuration. In the Figure 1a The seat-reclining device 3 is shown in the couch configuration. The following Figure 1b to 1c illustrate the conversion of the seat-reclining device into a bed configuration. In the Figure 1d The seat-lying device 3 can finally be seen in the bed configuration.

[0038] In the Figure 1aIt can be seen that the seat-reclining device 3 comprises a backrest section 4 and a horizontally oriented reclining section 5. The reclining section 5 can also be referred to as a seat section. The reclining section 5 is arranged in the rear area of ​​the commercial vehicle cab 1 and preferably extends along a rear side 19 of the commercial vehicle cab 1. Both the reclining section 5 and the backrest section 4 can have cushions for comfortable use by the user.

[0039] In the sofa configuration, the backrest section 4 is positioned in a first usage position 6. The user can sit on a reclining surface 8 or the seat of the reclining section 5 and lean comfortably against the backrest section 4. For this purpose, the backrest section 4 is oriented essentially vertically and at a distance from the reclining section 5 in the first usage position 6. Essentially vertical in this case means that the user can lean against the backrest section 4 in an ergonomic sitting position. In other words, essentially vertical means that the backrest section 4 forms an angle between 0° and 20° with a normal to the horizontally oriented reclining surface 8 of the reclining section 5. Put another way, the backrest section 4 can assume an angle between 90° and 110° with the reclining surface 8 of the reclining section 5.The distance between the lower edge of the backrest section 4 and the upper surface of the reclining section 5 is preferably less than 50 cm, particularly preferably less than 30 cm and / or less than the width of the reclining section 5. The width of the reclining section is its dimension as seen in the direction of travel.

[0040] To move the backrest section 4 into a second usage position corresponding to the bed configuration of the seat-reclining device 3, the seat-reclining device 3 has an adjustment device 15. In the Figure 1aIn the illustrated example, the adjustment device 15 comprises, for instance, two swivel arms 16, each attached at a first end (here, the upper end) to the backrest section 4 and at a second end (here, the lower end) to the reclining section 5. The adjustment device 15 can include a locking device 17, so that the backrest section 4 can be locked in the first operating position 6 and thus secured against accidental adjustment. The locking device 17 can, for example, be a clamping device or a locking pin. The swivel arms are designed as telescopic arms, so that the backrest section 4 is height-adjustable and can thus be adapted to the body size of different users. Between the swivel arms 16, the backrest section 4 can have a (not shown) e.g.,The upholstery support consists of a plate-shaped support, made of materials such as metal, plastic, or wood, to which the two swivel arms 16 are attached on the right and left. A cushion can surround the support on both sides, allowing the user to lean against it in the sofa configuration and lie on it in the bed configuration.

[0041] An embodiment (not shown) in which the adjustment device 15 has only one swivel arm 16 or more than two swivel arms 16 is also possible. Likewise, the swivel arms could be attached to a support or a support structure of the lying section 5, or the adjustment device 15 could be designed by other adjustment mechanisms, for example, by a rail or cable arrangement.

[0042] In its first position 6, the seat-reclining device 3 primarily serves the user as a seat, for example, while eating during a short break. To enable ergonomically comfortable lying, the seat-reclining device 3 can be converted into a bed configuration by moving the backrest section 4 into a second configuration, as described in the following sections. Figure 1b to 1c is illustrated.

[0043] In the Figure 1b In an optional step, the backrest of the front passenger seat 22 is first moved forward into a substantially horizontal stow position. Such front passenger seats 22 are available in various designs in the prior art and are therefore assumed to be known here.

[0044] The next step involves Figure 1cThe backrest section 4 is moved forward, for example by means of the adjustment device 15. The movement can be performed, for example, by muscle power, by motor, or by means of hydraulic assistance.

[0045] In Figure 1d Finally, the backrest section 4 is in a second operating position 7, in which it is positioned horizontally next to the lying section 5 and at the same height to widen the lying surface 8 of the lying section. The backrest section 5 and the lying section 4 form a common lying surface 8. In the first operating position, a plate-shaped and / or strip-shaped extension (not shown) can be arranged at the lower end of the lying surface 8 of the backrest section 4. In the second operating position 7, this extension covers any gap between the lying section 5 and the backrest section 4. This allows for an even more uniform lying surface.

[0046] In the resulting bed configuration of the seat-lying device 3, the user has access to a bed that is wide by commercial vehicle cabin standards, for example for sleeping. In the Figure 1d In the example shown, the backrest section 4 is located in the second usage position 7 above the previously folded-forward passenger seat 22, and preferably spaced apart from it, so that the backrest section 4 is cantilevered and does not require contact with the passenger seat 22. The (optional) locking device 17 can be used to secure the backrest section 4 against unintentional movement in the second usage position 7.

[0047] In its second operating position 7, the backrest section 4 can be positioned, for example, between the driver's seat 9 and a passenger-side side wall of the commercial vehicle cab 1. The width 10 of the commercial vehicle cab 1, minus the width 11 of the driver's seat 9, can be greater than the length 12 of the backrest section 4. Preferably, the backrest section 4 can be moved into the second operating position 7 without having to adjust the driver's seat 9. This offers the advantage that the user can switch the seat-reclining device 3 between a couch configuration and a bed configuration particularly easily, preferably in just one step. Furthermore, the driver's seat 9 remains accessible and usable at all times, so that the driver can immediately take their seat, for example, in an emergency, without first having to reconfigure the seat-reclining device 3.

[0048] The lying section 5 can (deviating from the illustration of the Figure 1d ) extend from a passenger-side side wall of the commercial vehicle cab 1 to an area behind the driver's seat 9, preferably to a driver-side side wall of the commercial vehicle cab. Alternatively, (according to the illustration of the Figure 1d ) a length 13 of the reclining section 5 essentially corresponds to the length 12 of the backrest section 4. In this case, the seat-reclining device 3 can include a second reclining section 14, which is arranged horizontally behind the driver's seat 9 and at the same height as the reclining section 5. The second reclining section 14 adjoins the reclining section 5, so that in the second usage position 7 the reclining section 5, the backrest section and the second reclining section 14 form a common reclining surface 8.

[0049] In the preferred configuration, the user lies on the sleeping platform 8 with their feet on the driver's side, specifically on the second sleeping section 14, and their head on the passenger side. The length of the sleeping platform essentially corresponds to the width 10 of the commercial vehicle cab 1 and is sufficiently large for the user to stretch out. The sleeping platform 8 is wider in the upper body area, providing the user with enough space to move around and comfortably rest their arms.

[0050] The Figure 2a to 2c show a further illustration of a sitting-lying device 3 according to a further embodiment of the invention, this time without a commercial vehicle cabin.

[0051] As before, in the Figure 2aIt can be seen that the seat-reclining device 3 comprises a reclining section 5 and a backrest section 4. The backrest section 4 is in the first usage position 6, and the seat-reclining device 3 is thus in the couch configuration, in which the user can, for example, sit on the reclining surface 8 of the reclining section 5 and lean against the backrest of the backrest section 4. For illustrative purposes only, the seat-reclining device 3 also includes a second reclining section 14 and an adjustment mechanism 15 comprising two swivel arms 16 and a locking device 17.

[0052] Unlike the Figure 1a to 1d The seat-reclining device includes 3 in the Figure 2a to 2c additionally a lying surface cover 18 for the lying surfaces 8 of the lying part 5 and the backrest part 4 in the second usage position.

[0053] The lying surface cover 18 is attached to the backrest part 4 and the lying part 5, preferably detachably, such that the lying surface cover 18 is automatically positioned on the lying surface 8 of the lying part 5 and the backrest part 4 as soon as the backrest part 4 is moved from the first usage position 6 to the second usage position (shown in the Figure 2c ) is moved.

[0054] In the Figure 2bIt can be seen that the sleeping surface cover 18 is attached to an upper side of the backrest section 4, facing the rear wall of the commercial vehicle cab, in the first usage position 6. For example, one edge of the sleeping surface cover 18 is attached along an upper edge of the backrest section, parallel to the rear of the commercial vehicle cab, in the first usage position 6, for example by means of a hook-and-loop fastener 20. An opposite edge of the sleeping surface cover is attached, for example by means of a zipper 21, along an upper edge of the sleeping section 5, facing the rear of the commercial vehicle. Both the hook-and-loop fastener 20 and the zipper 21 can be easily released, so that the sleeping surface cover 18 can be removed and, for example, washed.

[0055] By attaching the sleeping surface cover 18 to the edges of the lying section 5 and the backrest section 4, which in the first usage position 6 are each facing the rear of the commercial vehicle cabin, the sleeping surface cover 18 is automatically positioned on the sleeping surface 8 as soon as the backrest section 4 is moved into the second usage position.

[0056] Correspondingly shows Figure 2c The seat-reclining device 3 with the backrest section 4 in the second usage position 7. The lying surface cover 18 spans the entire lying surface 8 completely and without wrinkles. Preferably, the shape and area of ​​the lying surface cover 18 correspond exactly to the shape and area of ​​the widened lying surface 8 formed by the backrest section 4 and the lying section 5. In the example of the Figure 2c The sleeping surface cover 18 accordingly has a cutout for a driver's seat and therefore a non-rectangular shape.

[0057] Figure 3Figure 1 shows a schematic representation of a commercial vehicle 2 with a commercial vehicle cab 1, comprising a seat-lying device 3 according to an embodiment of the invention. It is understood that the reference to the Figure 3 described techniques and features with the techniques and features that refer to the Figure 1 and 2 The described components can be combined, individually or in any combination. The commercial vehicle 2 can be configured as a truck, as shown in the example.

[0058] Although the invention has been described with reference to certain embodiments, it is apparent to a person skilled in the art that various modifications can be made insofar as they fall within the scope of the attached patent claims. Reference symbol list

[0059] 1 Commercial vehicle cab 2 Truck / Commercial vehicle 3 Seat-reclining device 4 Backrest section 5 Reclining section 6 First usage position 7 Second usage position 8 Sleeping surface 9 Driver's seat 10 Width of commercial vehicle cab 11 Width of driver's seat 12 Length of backrest section 13 Length of reclining section 14 Second reclining section 15 Adjustment device 16 Swivel arm 17 Locking device 18 Sleeping surface cover 19 Rear of commercial vehicle cab 20 Hook and loop fastener 21 Zipper 22 Passenger seat

Claims

1. A commercial vehicle cab (1), preferably the cab of a truck (2), comprising a seat-berth arrangement (3) arranged in a rear portion of the commercial vehicle cab (1), comprising a backrest part (4) and a horizontally orientated berth part (5) wherein the backrest part (4) is movable between a first (6) and a second position of use (7), preferably in order to selectively set a couch configuration or a bed configuration of the seat-berth arrangement, wherein the backrest part (4) in the first position of use (6) is arranged substantially vertically and at such a distance from the berth part (5) that the backrest part (4) can be used as a backrest and the berth part (5) as a seat part for a user of the seat-berth arrangement (3); and wherein, in the second position of use (7), the backrest portion (4) is arranged horizontally next to the berth portion (5) and at the same height as the latter in order to widen a lying surface (8) of the berth portion (5); and further comprising an adjusting device (15) for moving the backrest part (4) between the first (6) and second (7) position of use; wherein the adjusting device (15) comprises at least one pivot arm (16), preferably two pivot arms (16), which is fastened at a first end to the backrest part (4) and is pivotably fastened at a second end to the berth part (5) or a support or supporting structure of the berth part (5); characterised in that the pivot arm (16) is configured as a telescopic arm for adjusting the height of the backrest part (4) in the first position of use (6).

2. Commercial vehicle cab (1) according to claim 1, wherein the backrest part (4) in the second position of use (7) is arranged between a driver's seat (9) of the commercial vehicle cab (1) and a passenger-side side wall of the commercial vehicle cab (1); and / or a width (10) of the commercial vehicle cab (1) minus a width (11) of the driver's seat (9) is greater than a length (12) of the backrest part (4); and / or the backrest part (4) can be moved between the first (6) and second (7) position of use without the driver's seat (9) having to be adjusted.

3. Commercial vehicle cab (1) according to one of the previous claims, wherein the berth part (5) extends from a passenger-side side wall of the commercial vehicle cab (1) to a portion behind a driver's seat (9), preferably to a driver-side side wall of the commercial vehicle cab (1); or a length (13) of the berth part (5) substantially corresponds to a length (12) of the backrest part (4) and the seat-berth arrangement (3) comprises a second berth part (14) which is arranged horizontally behind the driver's seat (9) and at the same height as the berth part (5).

4. Commercial vehicle cab (1) according to one of the previous claims, wherein the adjusting device (15) comprises a locking device (17) for locking the backrest part (4) in the first position of use (6) and / or in the second position of use (7).

5. Commercial vehicle cab (1) according to one of the previous claims, wherein the adjusting device (15) comprises two pivot arms (16), and the backrest part (4) comprises an upholstery support and an upholstery which surrounds the upholstery support on both sides, and the pivot arms (16) are fastened to the upholstery support on opposite sides.

6. A commercial vehicle cab according to any one of the preceding claims, further comprising a lying-surface cover (18) for the lying surfaces (8) of the berth part (5) and backrest part (4) in the second position of use (7), which is attached, preferably detachably, to a lying surface (8) of the backrest part (4), which in the first position of use (6) faces a rear side (19) of the commercial vehicle cab (1), and which is automatically positioned on the lying surface (8) of the berth part (5) and the backrest part (4) by moving the backrest part (4) from the first (6) to the second (7) position of use.

7. Commercial vehicle cab according to claim 6, wherein an edge of the lying-surface cover (18) is fastened along an upper edge of the berth part (5) facing the rear (19) of the commercial vehicle cab (1), and a further edge of the lying-surface cover (18) is fastened along an upper edge of the backrest part (4) running parallel to the rear (19) of the commercial vehicle cab (1) in the first position of use (6), and / or the shape and area of the lying-surface cover (18) corresponds to a shape and area of the widened lying surface (8).

8. Commercial vehicle cab (1) according to claim 6 or 7, wherein the lying-surface cover (18) is detachably fastened to the backrest part (4), preferably by means of a hook-and-loop fastener (20), and / or the lying-surface cover (18) is detachably fastened to the berth part (5), preferably by means of a zip fastener (21).

9. Commercial vehicle cab (1) according to one of the previous claims, further comprising a plate-shaped and / or strip-shaped extension arranged on the lower portion of a lying surface (8) of the backrest part (4) and covering a gap between the lying part (5) and the backrest part (4) in the second position of use (7) of the backrest part (4).

10. A commercial vehicle cab (1) according to any of the previous claims, further comprising a passenger seat (22), the backrest of which can be brought forwards into a substantially horizontal stowed position, wherein the backrest part (4) of the seat-berth arrangement (3) in the second position of use (7) is arranged above and preferably at an angle to the backrest of the passenger seat (22) in the stowed position.

11. Commercial vehicle cab (1) according to one of the previous claims, wherein, in the first position of use (6), a distance of a lower edge of the backrest part (4) from an upper side of the berth part (5) is smaller than 50 cm, further preferably smaller than 30 cm and / or smaller than a width of the berth part (5).

12. Commercial vehicle (2), preferably truck (2), comprising a commercial vehicle cab (1) according to one of the previous claims.