Vehicle device for performing steering movements

Abstract

A device (1) for a vehicle, particularly a forklift, designed to at least perform steering movements of the vehicle, the device (1) being arranged on the armrest (2) of the vehicle seat, characterized in that: the device (1) is at least partially rotatable relative to the armrest (2) about a first pivot axis (3), wherein the rotation of the device (1) about the first pivot axis (3) causes steering movements of the vehicle, and wherein the device (1) comprises: a first device element (4) arranged above the armrest (2); and a second device element (5) fixedly connected to the first device element (4) and extending downward beyond the first device element (4).

Description

Technical Field

[0001] The present invention relates to a device for a vehicle, particularly a forklift, designed to at least perform steering movements of the vehicle, the device being arranged on the armrest of the vehicle seat. Background Technology

[0002] There are various devices used to perform steering movements, also known as steering mechanisms, and are also used in forklifts. Until now, ordinary steering wheels have typically been used, positioned in front of the vehicle seat, and due to their location, the driver cannot clearly see the goods to be transported on the forklift's forks. In addition to the steering wheel, the dashboard is usually located in the front area. If these were not present, the forklift driver could see the goods below or on the forks without any problems, thus ensuring safer movement and transport of goods along with pallets. Until now, this has often been associated with the fact that the driver must stand up from the vehicle seat or bend forward to ensure clean pickup of pallets or other objects with the forks.

[0003] Steering mechanisms connected to vehicle seats are also known. However, these have significant ergonomic drawbacks when the driver turns back in the vehicle seat, for example, while reversing, in order to see the rear driving area.

[0004] Due to the driver's body structure, if the body is twisted, the hand, which should be used to control steering, is easily twisted relative to the steering mechanism, and the steering mechanism can no longer operate normally and safely. For example, if the steering mechanism is operated with the left hand, it allows for clockwise rotation of the body to see the rear area. Therefore, the driver's hand twists, causing the hand to move relative to the mechanism. Summary of the Invention

[0005] Therefore, the object of the present invention is to provide a device for performing steering movements of a vehicle that ensures the driver has a free view of the area in front of the vehicle, particularly in the area of ​​the vehicle floor, and allows for comfortable operation of the vehicle's steering mechanism regardless of the instantaneous rotational position of the driver's body.

[0006] This task is accomplished using a device.

[0007] The core idea of ​​this invention is to provide a device for a vehicle, particularly a forklift, wherein the device is designed to at least perform steering movements of the vehicle, wherein the device is arranged on the armrest of the vehicle seat, and wherein the device is rotatable relative to the armrest about a first pivot axis, wherein rotation of the device about the first pivot axis causes steering movements, and wherein the device is designed to at least perform steering movements of the vehicle, wherein the device includes

[0008] - A first device element, which is arranged above the handrail, and

[0009] - A second device element, which is fixedly connected to the first device element and extends downward beyond the first device element.

[0010] This means that when the device rotates about the pivot axis, both the first and second device elements rotate about the pivot axis because the device elements are securely or rigidly connected to each other. Particularly preferably, the connection between the device elements is designed to be detachable, but it is also conceivable that the device elements are connected to each other in such a way that only damage to the device will cause the device elements to separate.

[0011] Preferably, the device is located on the left armrest, since the control lever is typically located on the right armrest and has various other functions, such as operating the forklift's forks. Alternatively, it is conceivable that the device is located on the right armrest, while the control lever is located on the left armrest.

[0012] According to the invention, a first device element is arranged above the handrail. Particularly preferably, the handrail has an upper surface, so that the first device element is arranged above the upper surface.

[0013] Whether the device is located on the left or right armrest, preferably, the second device element is located on the inside of the armrest, i.e., the side facing the driver.

[0014] According to a particularly preferred embodiment, the first device element and the second device element are arranged and designed such that a hand can be placed at least partially thereon, wherein the hand can be placed at least partially on the first device element during forward movement of the vehicle, and at least partially on the second device element during backward movement of the vehicle.

[0015] The first device element includes a first hand rest surface that can be at least partially covered by the palm and fingers of a hand, such that sensitive left and right rotation of the device about a pivot axis results in steering motion of the vehicle.

[0016] The second device element includes a second hand rest surface that can be at least partially covered by the palm and fingers of a hand, such that sensitive left and right rotation of the device about a pivot axis results in steering motion of the vehicle.

[0017] Particularly preferably, the first hand support surface is designed to extend in the direction of the armrest at least at the middle of the device, and preferably, the second hand support surface is designed to be substantially perpendicular to the direction of the armrest's extension or at an acute angle to the direction of the armrest's extension. The hand support surfaces preferably at least partially conform to the shape and design of the hand.

[0018] According to a preferred embodiment, the device is capable of rotating left and right by a rotation angle of up to 40°, more preferably up to 30°, and even more preferably up to 20°. Since the second device element extends downwards from the first device element above the second device element, i.e., into the armrest area, the design of the device's rotation angle must be adjusted accordingly, as otherwise the armrest might obstruct the device's rotational movement. Alternatively or cumulatively, the armrest can be adjusted accordingly to allow certain rotation angles.

[0019] Particularly preferred is the steering ratio of the rotation angle of the device to the steering angle of the vehicle (such as the steering system or wheel hub). Further preferred is a progressive steering ratio, meaning that the ratio of rotation angle to steering angle varies disproportionately within the rotation angle range.

[0020] Among other things, the advantage of a progressive design is that a relatively small rotation angle results in a tiny change in the steering angle, thus allowing for very precise steering of the vehicle, for example, to enable the pickup of pallets with the forklift's forks.

[0021] According to a preferred embodiment, the first pivot axis is arranged in the height direction or at an acute angle to the height direction. According to a further embodiment, the first pivot axis can also rotate in any direction, i.e., forward and sideways, in order to achieve more comfortable operation depending on the position of the person's hand relative to their arm.

[0022] According to a preferred embodiment, the device may be height-adjustable, either wholly or partially, relative to the armrest, preferably in the direction of the first pivot axis, such that the device and the armrest can be adjusted relative to the driver's physical requirements.

[0023] According to a preferred embodiment, a reset unit is provided to reset the device to an intermediate position. The intermediate position can be represented, for example, by a rotation angle of 0°.

[0024] For example, a restoring force can be applied to the rotating device by means of a corresponding return spring, so that when the hand or fingers are released or lifted, the device automatically rotates to the middle position.

[0025] Particularly preferred is that the reset unit, such as a reset spring, is designed to be progressive, i.e., to act with disproportionately larger reaction or reset forces at larger rotation angles.

[0026] According to another preferred embodiment, a tactile signal can be emitted when the device reaches the intermediate position. Preferably, a tactile signal can be emitted when the device reaches the intermediate position.

[0027] Acoustic or optical signals could also be considered. Any combination is also possible.

[0028] If the device is not in the driver's field of vision, the corresponding signal indicating that the device has reached the middle position or is in the middle position when reversing is particularly helpful to the driver.

[0029] Furthermore, the device can be subjected to damping forces during rotation. This can be achieved using a rotary damper or similar device, thus enabling less sudden and intense steering movements over a short period of time.

[0030] According to a particularly preferred embodiment, a reaction force can be applied to the rotational movement of the device. The reaction force preferably counteracts the device's reset, preventing the reset from occurring too abruptly or even after several back-and-forth movements. The reaction force can preferably be linear or gradual within the rotation angle. Particularly preferably, a small reaction force is provided for small rotation angles. More preferably, the reaction force is matched to the restoring force, meaning that, for example, if a high restoring force is applied, a correspondingly higher reaction force is provided.

[0031] According to another preferred embodiment, a first function key and indicator are arranged on a first device element, and a second function key and indicator are arranged on a second device element.

[0032] Here, function keys and indicators can correspond to other vehicle functions, such as light functions, indicator functions, parking functions, horn functions, etc.

[0033] Various other passive or active sensors and actuators can also be operated via switches appropriately arranged on the device, or their functions can only be indicated by indicator lights. Due to this actuation element on the steering system, it is conceivable to switch from forward to reverse driving with the aid of small finger movements. Furthermore, changes from fast to slow driving are also conceivable. Battery status can also be displayed, as can active ignition. In summary, it can be said that a large number of function keys and function displays can be set in this innovative steering system, thus omitting all these further functions as features of the dashboard, making the dashboard and steering wheel unnecessary. This also provides a clear view of the forklift forks and the ground area in front of the vehicle in general.

[0034] Particularly preferably, at least one of the function keys and indicators of the first and second device elements has the same function, and further preferably, the function keys and indicators of the first device element are activated only during forward movement, and the function keys and indicators of the second device element are activated only during backward movement.

[0035] Preferably, a recognition unit is provided, which is designed to recognize forward and backward movement. Preferably, the corresponding function keys and indicators are activated or deactivated by means of the recognition unit. In this way, unintentional actuation can be avoided.

[0036] The basic objective is also achieved by a device for vehicles, particularly forklifts, designed to at least perform steering movements of the vehicle. The device is arranged on the armrest of the vehicle seat and is rotatable relative to the armrest about a first pivot axis. Rotation of the device about the first pivot axis by a certain pivot angle causes a steering movement of about a certain steering angle, and the steering ratio is designed to be progressive from the pivot angle to the steering angle.

[0037] Particularly preferably, the steering ratio is designed to be progressive over the entire range of rotation angles.

[0038] The basic objective is also achieved by a device for a vehicle designed to perform at least steering movements of the vehicle, the device being arranged on the armrest of the vehicle seat, the device comprising at least one rotatable wheel element which is at least partially surrounded on the circumferential side by the fingers of the driver's hand placed on the device and is rotatable about a first pivot axis for steering movements, and a second device element being fixedly connected to the wheel element and extending downward beyond the wheel element.

[0039] Furthermore, the device is advantageously designed in such a way that it can be sensitively rotated left and right by covering the inner palm of the hand from above and surrounding the downward-pointing fingers with the wheel element in its design (preferably knob-shaped), thereby causing the vehicle to steer. The device thus has a first hand support surface, preferably arranged at least partially or completely above the wheel element.

[0040] Therefore, the fingers of the left hand, with or without a thumb, are arranged on the outer circumference of the wheel element, and the wheel element can be freely rotated by resting the hand on it. However, it should be noted that the palm is placed on a stationary head component that does not move with the wheel element.

[0041] The wheel element, along with the knob-shaped head component and the base component located below it, is ergonomically designed to fit comfortably in the bent palm, thus enabling easy rotation of the wheel element and, consequently, a sensitive steering process through slight movements of the fingers.

[0042] The wheel element, capable of rotating about a pivot axis, is preferably oriented horizontally, meaning the pivot axis is preferably oriented vertically. However, according to a further embodiment, the axis can also rotate in any direction, i.e., forward and sideways, to allow for more comfortable operation depending on the position of the person's hand relative to their arm.

[0043] Above the edge element is the aforementioned knob-shaped head component, which is statically positioned on the steering mechanism and serves to rest the palm, forming a first hand support surface. This head component has an advantageous ergonomic design, allowing it to fit snugly against the palm. Preferably, it can also be height-adjustable, so that the downward-protruding fingers are spaced apart from the wheel element, such that only the tip regions of the fingers surround the wheel element.

[0044] The head assembly can be height-adjusted, either entirely or partially, allowing, for example, the top cover of the head assembly to be moved upwards. This also enables active ventilation around the entire upper functional block or valve cover. This is because there is a gap between the cover and the rest of the head assembly, which also allows ventilation from the inside, opposite the hand, via an internally supplied air supply. This air will flow downwards over the entire circumference of the head assembly, over the wheel element and the base component below, thus also preventing any wet fingers from slipping off the wheel element.

[0045] Preferably located in the front region of the armrest, the device itself, in a preferred configuration, typically positioned in front of the armrest, can also advantageously alter its distance from the rest of the armrest. As a result, the user can place his arm on the armrest in the usual manner, which will cause the button-shaped head component to move away from the armrest along with the rest of the steering mechanism, thereby allowing the steering mechanism to be optimally positioned in the palm of the hand at the correct distance from the rest of the forearm.

[0046] Below the wheel element is the stationary base portion opposite the armrest, which is equipped with at least partially integrated first function keys and indicators. These function keys and indicators may also exist as further function keys and indicators in the knob-like head assembly. Other vehicle functions, such as lighting functions, indicator functions, parking functions, horn functions, etc., are also included. Various other passive or active sensors and actuators can also be operated by switches appropriately arranged on the head assembly or base assembly, or their functions can be indicated solely by indicator lights.

[0047] Because of this actuation element on the steering system, it's conceivable that a small finger movement could change the direction of travel from forward to backward. Furthermore, it's possible to switch from fast to slow driving. Battery status can also be displayed, and active ignition is also possible. In summary, it can be said that a large number of function keys and displays can be incorporated into this innovative steering system, thus eliminating all these further functions as features of the dashboard, making the dashboard and steering wheel unnecessary. This also provides a clear view of the forklift's forks and the ground area in front of the vehicle.

[0048] The wheel element is advantageously equipped with finger grooves on its circumference, preventing the fingertips or fingertips of the fingers gripping the wheel from above from slipping off. This also allows for more sensitive wheel rotation.

[0049] The head component, base component, and wheel element are preferably at least partially circular in shape in order to provide an ergonomically comfortable shape for the inside of the hand.

[0050] Viewed from the direction of the vehicle seat, the steering mechanism is located in front of or on the armrest and can rotate outward at a certain angle relative to the seat surface about the longitudinal axis of the armrest. This corresponds to an ergonomically relaxed and advantageous posture for the hand relative to the rest of the forearm.

[0051] The head and base components can extend backwards towards the armrests to provide better support for the palms. This means that in the rear area of ​​the head and base components, these two components are no longer round or spherical, but have bead-like extensions, which are particularly comfortable for the user's palms due to the ergonomic design of the palm rest.

[0052] According to the invention, the fixed connection between the wheel element and the second device element means that when the wheel element rotates about the pivot axis, the second device element also rotates about the pivot axis, because the wheel element and the second device element are fixed or rigidly connected to each other. Particularly preferably, this connection is designed to be detachable; however, it is also conceivable that the connection is such that only damage to the device would cause the device element to be separated.

[0053] According to the invention, the wheel element is arranged above the armrest. Particularly preferably, the armrest has an upper surface, so that the wheel element is arranged above the upper surface.

[0054] Whether the device is located on the left or right armrest, preferably, the second device element is located on the inside of the armrest, i.e., the side facing the driver.

[0055] The second device element includes a second hand rest surface that can be at least partially covered by the palm and fingers of a hand, such that sensitive left and right rotation of the device about a pivot axis results in steering motion of the vehicle.

[0056] Preferably, the second hand support surface is designed to extend substantially perpendicular to or at an acute angle to the direction of the armrest's extension. The hand support surface preferably adapts at least partially to the shape and design of the hand.

[0057] According to a preferred embodiment, the device is capable of rotating left and right by up to 40°, more preferably up to 30°, and even more preferably up to 20° or 15°. Since the second device element extends downwards from the wheel element above the wheel element, i.e., into or even beyond the area of ​​the armrest, the design of the device's rotation angle must be adjusted accordingly, as the armrest might otherwise obstruct the rotational movement of the wheel element. Alternatively or cumulatively, the armrest can be adjusted accordingly to allow certain rotation angles.

[0058] Particularly preferred is the steering ratio of the rotation angle of the wheel element to the steering angle of the vehicle (such as the steering mechanism or wheel hub). The steering ratio is preferably progressive, that is, the ratio of the rotation angle to the steering angle varies disproportionately within the rotation angle range.

[0059] Among other things, the advantage of a progressive design is that the relatively small rotation angle results in a tiny change in the steering angle, allowing the vehicle to be steered very precisely, for example, to be able to pick up pallets with the forks of a forklift.

[0060] According to a preferred embodiment, the pivot axis is arranged in the height direction or at an acute angle to the height direction. According to a further embodiment, the first pivot axis can also rotate in any direction, i.e., forward and sideways, in order to enable more comfortable operation based on the position of the person's hand relative to their arm.

[0061] According to a preferred embodiment, a reset unit is provided to reset the device or wheel element to an intermediate position. The intermediate position can be represented, for example, by a rotation angle of 0°.

[0062] For example, a return force can be applied to the rotating wheel element by means of a corresponding return spring, so that the device automatically rotates to the middle position when the hand or finger is released or lifted.

[0063] Particularly preferred is that the reset unit, such as a return spring, is designed to be progressive, i.e., to act with a disproportionately larger reaction force or return force at a larger rotation angle.

[0064] According to another preferred embodiment, a tactile signal can be emitted when the device or wheel element reaches the intermediate position. Preferably, the tactile signal can be emitted when the device or wheel element is in the intermediate position.

[0065] Acoustic or optical signals could also be considered. Any combination is also possible.

[0066] If the device is not in the driver's field of vision, the corresponding signal that the output device or wheel element has reached or is in the middle position when reversing is particularly helpful to the driver.

[0067] Furthermore, the device can be subjected to damping forces during rotation. This can be achieved using a rotary damper or similar device, thus enabling less sudden and intense steering movements over a short period of time.

[0068] According to a particularly preferred embodiment, the rotational motion of the wheel element can apply a reaction force. The reaction force preferably causes the reaction force cancellation device or wheel element to reset, so that the reset does not occur too abruptly or even involve several back-and-forth movements. The reaction force can preferably be linear or gradual within the rotation angle. Particularly preferably, a low reaction force is provided for small rotation angles. More preferably, the reaction force is matched to the restoring force, meaning that, for example, if a high restoring force is applied, a correspondingly higher reaction force is provided.

[0069] According to another preferred embodiment, additional function keys and indicators are arranged on the second device element.

[0070] Here, the function keys and indicators can correspond to other vehicle functions, such as light functions, indicator functions, parking functions, horn functions, etc., because they are already located elsewhere. This makes these functions easy to activate when reversing, even if the hand is moving relative to the device.

[0071] Particularly preferably, at least one function of the function keys and indicators of the device without the second device element is the same as at least one function of the second device element, and further preferably, the function keys and indicators of the device are activated only during forward movement, and the function keys and indicators of the second device element are activated only during backward movement.

[0072] Preferably, a recognition unit is provided, which is designed to recognize forward and backward movement. Preferably, the corresponding function keys and indicators are activated or deactivated by means of the recognition unit. In this way, unintentional actuation can be avoided.

[0073] The fundamental objective is further addressed by a device for a vehicle, designed to at least perform steering movements of the vehicle, the device being disposed on the armrest of the vehicle seat, wherein the device includes...

[0074] - A first device element, which is arranged above the handrail, and

[0075] - A second device element, which is fixedly connected to the first device element and extends downward from the first device element beyond the first device element.

[0076] The device is arranged substantially rigidly relative to the armrest, and the steering motion of the vehicle can be caused by the force and / or torque applied to the device.

[0077] "Substantially" or "truly" should be understood as providing no or only very slight rotation of the device. The maximum rotation to the left and right does not exceed 10°, more preferably 5°, and even more preferably the maximum rotation is at most 3° in each rotation direction.

[0078] According to this embodiment, the steering motion of the vehicle can be induced as a function of the force and / or torque applied to the device. According to a preferred embodiment, each value of the force and / or torque is associated with the vehicle's steering angle. Particularly preferably, the dependence of the force and / or torque on the steering angle is linear or asymptotic. Preferably, the higher the value of the force and / or torque applied to the device, the larger the vehicle's steering angle. The dependence of the force and / or torque on the steering angle can be stored as needed and implemented accordingly by means of a control unit, or re-stored as needed. By measuring the force or torque, spring elements, devices, dampers, etc., can be eliminated because the dependence can be described electronically and without providing movement in a larger sense of the device.

[0079] According to another preferred embodiment, at least one sensor is provided, by means of which force and / or torque can be measured. Particularly preferred is that the sensor data is transmitted to a control unit, by means of which corresponding control of the steering device and adjustment of the steering angle are caused, preferably by means of appropriate control elements, actuators, etc.

[0080] According to another preferred embodiment, an elastic element, preferably an elastically deformable element, is arranged between the device and the handrail. The elastic element can be composed of natural rubber, rubber, an elastomer, or other elastic or elastically deformable materials. Because the connection between the device and the handrail is formed by the elastic element, slight rotation of the device relative to the handrail can be achieved. More preferably, rotational forces or torques arising from forces and / or torques acting on the device can be absorbed to prevent damage to the device. This corresponds to the basic idea of ​​a substantially rigid connection between the device and the handrail.

[0081] Particularly preferably, the sensor unit is configured and designed to detect a hand. The sensor unit detects that the hand is in contact with a first hand rest surface or a second hand rest surface, or that the hand is placed on a first device element or a second device element. Preferably, the sensor unit includes a corresponding first sensor disposed in or on the first device element or hand rest surface, and a second sensor disposed in or on the second device element or hand rest surface.

[0082] Further implementation schemes and implementation schemes within implementation schemes are applicable to more implementation schemes and can be freely combined among each other, as long as they do not correspond to opposite implementation schemes.

[0083] Other advantageous implementation schemes are derived from specific implementation methods. Attached Figure Description

[0084] Further objects, advantages, and usefulness of the invention will become apparent in the following description taken in conjunction with the accompanying drawings. It is hereby shown that:

[0085] Figure 1A It is an apparatus according to a preferred embodiment;

[0086] Figure 1B It is based on Figure 1A A partial exploded view of the device;

[0087] Figure 1C It is based on Figure 1A A complete exploded view of the device;

[0088] Figure 1D It's a device on the right armrest;

[0089] Figure 2A It is the asymptotic steering ratio of the device;

[0090] Figure 2B The restoring force of the device is described;

[0091] Figure 3 It is a device based on an alternative design;

[0092] Figure 4 It is based on Figure 3 A side view of the device;

[0093] Figure 5 It is a device based on an alternative design. Detailed Implementation

[0094] In the accompanying drawings, the same components should be understood to have corresponding reference numerals. For clarity, some components may not have reference numerals in some figures, but have been designated elsewhere.

[0095] Figure 1A A device 1 for performing steering movements of a vehicle (not shown here) is illustrated, wherein the device is arranged on the armrest 2 of a vehicle seat (not shown in more detail here). Arrangement on the armrest 2 can mean that the device 1 is directly arranged on the armrest 2, or, as shown, arranged together with the armrest 2 by means of an armrest extension 11, which is preferably translatably displaceable relative to the armrest 2, for example, in the longitudinal direction L or at an angle to the longitudinal direction L. Particularly preferably, it is conceivable that the armrest extension 11 is translatably displaceable relative to the armrest 2 and rotatable relative to the armrest 2. This translational adjustability allows the device 1 to be adjusted according to the driver's arm position.

[0096] Furthermore, the device 1 can rotate about the first pivot axis 3 relative to the handrail 2 or the handrail extension 11.

[0097] The device 1 thus includes a first device element 4 and a second device element 5, wherein the second device element 5 is arranged to be fixedly connected to the first device element 4 and, in particular, extends downward beyond the first device element 4 when viewed in the height direction H.

[0098] Furthermore, the first device element 4 has a first hand support surface 8, and the second device element 5 has a second hand support surface 9. Preferably, the first hand support surface 8 extends in the longitudinal direction L and the second hand support surface 9 extends in the height direction H.

[0099] In this embodiment according to FIG. 1, viewed in the height direction H, the first device element 4 is arranged above the surface 12 of the armrest 2 or armrest extension 11. The second device element 5 extends downward from the first device element 4, particularly preferably extending below the surface 12. More preferably, the second device element 5 extends downward from the first device element 4 above the surface 12, particularly preferably extending below the armrest 2 or armrest extension 11. When the driver turns backward, the driver's hand also turns, and thus, particularly due to the arrangement of device elements 4 and 5 relative to each other, the fingers of the hand slide downward from the first handrest surface 8 and the hand moves to the second handrest surface 9. Therefore, rotation of the device 1 is possible by applying force to the second device element 5.

[0100] Particularly preferably, the second device element 5 is designed so that the hand can be easily put down, i.e., it is adapted to the physiological function of the hand.

[0101] Preferably, the second device element 5 includes a first region 13, a second region 14, and a third region 15, wherein the first region 13 is connected to the first device element 4. More preferably, the third region 15 is spaced apart from the first region 13 in the width direction B, so that the third region 15 is higher in the width direction B. The second region 14 is arranged between the first region 13 and the third region 15, which is intended to connect the first region 13 and the third region 15 to each other.

[0102] The extension of the second device element 5 in the height direction H and in the longitudinal direction L is preferably adapted to the geometry of the hand.

[0103] According to a preferred embodiment, the second region 15 includes a recess 16 or a recessed area 16, which is designed for the thumb of the hand to rest thereon, so that the thumb has a good connection with the device, especially when the hand rests on the first hand rest surface 8. Figure 1 shows the left armrest, so that the thumb of the left hand rests in the recess 16.

[0104] Therefore, the second device element 5 has at least dual functions, namely a forward driving position and a rearward driving position.

[0105] More preferably, a device support element 10 is provided that is rigidly connected to the armrest 2 or the armrest extension 11. Particularly preferably, a first device element 4 is arranged above the device support element 10. More preferably, it can be assumed that an extension 17 of the device support element 10, which is rigid in itself, is provided, extending downward and at least partially complementary to the second device element 5. In this way, undesirable forces acting on the second device element 5, such as movement of the thigh against the second device element 5, which may result in steering movements, can be reduced.

[0106] Device support element 10 again in Figure 1B As shown, the device support element 10 has been installed. Preferably, the device support element 10 is designed such that the device 1 can be rotatably connected to the device support element 10.

[0107] The first device element 4 has a first function key and an indicator 6, and the second device element has a second function key and an indicator 7.

[0108] Particularly preferred is that during forward movement, the first function key and indicator 6 are activated while the second function key and indicator 7 are deactivated, and during backward movement, the first function key and indicator 6 are deactivated while the second function key and indicator 7 are activated. This allows for unintentional actuation of the function keys and indicators of device elements 4 and 5 that are not occupied by the hand. Particularly preferred is that the allocation of the first function key and indicator 6 is at least partially the same as the allocation of the second function key and indicator 7. In particular, this allocation has functions necessary or anticipated for both forward and backward movement, such as a horn function.

[0109] Particularly preferably, a recognition unit is provided to identify forward and backward movement. Preferably, the corresponding function keys and indicators 6, 7 are activated or deactivated by means of the recognition unit. In this way, unintentional actuation can be avoided.

[0110] Alternatively, it can be envisioned that all function keys and indicators 6 and 7 are activated.

[0111] Particularly preferred is that the rotational motion of device 1 is affected by a torque that counteracts the rotational motion. This is due to the fact that device 1 is rotated with the thumb or other fingers, thereby allowing a greater force to be applied by means of the thumb. Therefore, when device 1 is rotated with the thumb, a higher torque can be provided than when device 1 is rotated with other fingers.

[0112] Figure 1CDevice 1 is shown again in a complete exploded view. It can be seen that the device is mostly hollow. The first device element 4 and the second device element 5 are formed as hollow bodies, thereby rigidly connecting device elements 4 and 5 to each other, for example, by molding them together or as a single component. The corresponding hand rest surfaces 8 and 9 can be designed as separate elements that can be connected to the corresponding device elements 4 and 5, for example, by clipping them, thus ensuring easy interchangeability.

[0113] exist Figure 1D In the image, device 1 is shown for the right armrest 2, such that the position of the second device element 5 differs from that of the first device element 4 so as to face the person sitting in the vehicle seat.

[0114] Figure 2A The diagram illustrates the progressive steering ratio, which is a function of rotation angle and steering angle, with different interpretations. The horizontal axis represents the rotation angle of device 1, and the vertical axis represents the steering angle.

[0115] A linear progression 18 is shown along with the first curve for comparison. Progressive progressions 19, 20, 21, and 22 are shown with further progression, where the first progressive progression 19 has a weaker progression than the second progressive progression 20, the second progressive progression 20 has a weaker progression than the third progressive progression 21, and the third progressive progression 21 has a weaker progression than the fourth progressive progression 22.

[0116] It can be imagined that the corresponding function is described by the corresponding power function, preferably with an even exponent.

[0117] Figure 2B An exemplary advancement in restoring force is shown.

[0118] Figure 3 The apparatus 1 according to an alternative embodiment is shown. Figure 3 A perspective view of a vehicle seat having a device 1 according to the invention is shown. The vehicle seat has a backrest and a seat portion. An armrest 2 is arranged on the left side and has a device 1 according to the invention attached thereto in its front region. The device 1 includes a rotatable wheel element 23, a base component 24, and a head component 25, wherein the wheel element 23 is disposed above the base component 24 and below the head component 25.

[0119] In addition, the second device element 5 is disposed on the wheel element 23.

[0120] Device 1 is used to attach arm-shaped components or handrail extensions 11 to the handrail 2 in front of and below the handrail 2.

[0121] Figure 4 It shows Figure 3The side view of the device shows no additional handrail and no second device element 5. As can be seen from this figure, the device 1 includes not only a wheel element 23 that can rotate about axis 26, but also finger slots 27 on which fingers can be comfortably placed to rotate the wheel element 23. In fact, a fixed base component 24 with additional function buttons or function displays 28, 29 can also be seen arranged below. Control switches 28, 29 can be operated, for example, with the left thumb to occupy the parking position or to activate or deactivate the parking brake. For this, it is not necessary to remove the remaining fingers of the left hand from the wheel element 23.

[0122] The head unit 10 also has function indicators and function actuators. For example, the vehicle's indicators can be operated by actuation elements 29 and 30. However, these actuation elements can also be used to move the vehicle forward and backward.

[0123] Figure 5 Another alternative embodiment is shown, which essentially corresponds to the embodiment according to Figure 1, wherein the device 1 is arranged substantially rigidly relative to the armrest 2, i.e., the device 1 does not rotate or rotates only very slightly. Furthermore, a sensor (not shown here) is provided, which is intended and designed to detect the effect of force and / or torque on the device 1. This sensor data can be used by means of a control unit (not shown here) to adjust the corresponding steering angle of the vehicle, for example, via actuators, actuating elements, etc.

[0124] The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided that they are novel individually or in combination with respect to the prior art. It is further noted that the various figures also depict features that may be advantageous in themselves. Those skilled in the art will readily recognize that certain features depicted in the figures may also be advantageous without employing further features shown in those figures. Furthermore, those skilled in the art will recognize that advantages may also arise from a combination of several features shown in a single figure or different figures.

[0125] List of reference numerals

[0126] 1. Apparatus;

[0127] 2. Handrails;

[0128] 3. Pivot axis;

[0129] 4. First device component;

[0130] 5. Second device components;

[0131] 6. First function key and indicator;

[0132] 7. Second function keys and indicators;

[0133] 8. First hand support the surface;

[0134] 9. Second hand support surface;

[0135] 10. Device support components;

[0136] 11. Handrail extension;

[0137] 12. Surface;

[0138] 13. The first region of the second device element;

[0139] 14. The second region of the second device element;

[0140] 15. The third region of the second device element;

[0141] 16 recess, recessed area;

[0142] 17. Extension;

[0143] 18. Linear progression;

[0144] 19. First linear progression;

[0145] 20. Second linear progression;

[0146] 21. Third linear progression;

[0147] 22. Fourth linear progression;

[0148] 23 wheel components;

[0149] 24. Base components;

[0150] 25-head components;

[0151] 26. Axis;

[0152] 27. Finger groove;

[0153] 28. Operation switch;

[0154] 29. Operation switch;

[0155] 30. Operation switch.

Claims

1. A device (1) for a vehicle, said device (1) being designed to perform at least a steering motion of said vehicle, said device (1) being disposed on an armrest (2) of a vehicle seat of said vehicle. Its features The device (1) is at least partially rotatable relative to the armrest (2) about a first pivot axis (3), wherein rotation of the device (1) about the first pivot axis (3) causes steering motion of the vehicle, and wherein the device (1) comprises: - A first device element (4), which is arranged above the handrail (2), and - A second device element (5) is fixedly connected to the first device element (4) and extends downward beyond the first device element (4). The first device element (4) and the second device element (5) are configured and designed such that a hand can be placed on them at least partially, wherein the hand can be placed on the first device element (4) at least partially during the forward movement of the vehicle, and the hand can be placed on the second device element (5) at least partially during the backward movement of the vehicle. The first device element (4) is a rotatable wheel element (23) that is at least partially surrounded by the fingers of the driver's hand placed on the device (1) on the circumferential side and can rotate about the axis (26) for steering motion. The second device element (5) is fixedly connected to the wheel element (23) and extends downward beyond the wheel element (23). The first function key and indicator (6) are arranged on the first device element (4), and the second function key and indicator (7) are arranged on the second device element (5).

2. The apparatus (1) according to claim 1. Its features The first pivot axis (3) is arranged to extend in the height direction (H) or at an acute angle to the height direction (H).

3. The apparatus (1) according to claim 1. Its features The steering ratio from the rotation angle to the steering angle of the device (1) is gradual.

4. The apparatus (1) according to claim 1. Its features A reset unit is provided to reset the device (1) to the middle position.

5. The apparatus (1) according to claim 4. Its features When the device (1) is in the intermediate position, a tactile signal can be emitted.

6. The apparatus (1) according to claim 1. Its features The rotational motion of the device (1) can be subjected to a reaction force, so that the greater the rotational motion, the greater the reaction force.

7. A device for a vehicle, said device (1) being designed to perform at least a steering motion of said vehicle, said device (1) being disposed on an armrest (2) of a vehicle seat of said vehicle. Its features The device (1) has - First device element (4), which is arranged above the armrest (2), and - A second device element (5) is fixedly connected to the first device element (4) and extends downward beyond the first device element (4). The device is substantially rigidly arranged relative to the armrest, and the steering motion of the vehicle can be caused by force and / or torque on the device (1). The first device element (4) and the second device element (5) are configured and designed such that a hand can be placed on them at least partially, wherein the hand can be placed on the first device element (4) at least partially during the forward movement of the vehicle, and the hand can be placed on the second device element (5) at least partially during the backward movement of the vehicle. The first device element (4) is a rotatable wheel element (23) that is at least partially surrounded by the fingers of the driver's hand placed on the device (1) on the circumferential side and can rotate about the axis (26) for steering motion. The second device element (5) is fixedly connected to the wheel element (23) and extends downward beyond the wheel element (23). The first function key and indicator (6) are arranged on the first device element (4), and the second function key and indicator (7) are arranged on the second device element (5).

8. The apparatus according to claim 7, Its features Each value of the applied force and / or torque is associated with the steering angle of the vehicle.

9. The apparatus according to any one of claims 7 or 8, Its features A sensor is provided so that the force and / or torque can be measured.

10. The apparatus according to any one of claims 7 to 8, Its features An elastic element is disposed between the device and the handrail.

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