Armrest device and vehicle with same

Abstract

The invention discloses a handrail device for a vehicle and the vehicle with the handrail device. The device comprises a handrail body with an internal accommodating cavity, and a storable display assembly is movably mounted in the handrail body. The assembly includes: a display assembly; the deployment mechanism is used for driving the assembly to move between a storage position and an unfolding position; and the position adjusting mechanism is used for adjusting the position or posture of the display component after being unfolded. The display assembly is ingeniously contained in the armrest, flexible position adjustment is provided during use, the problems that in the prior art, the position of a screen is fixed, and attractiveness is affected are solved, and convenience and the sense of science and technology are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile interior decoration, and in particular to a vehicle-mounted display device, more specifically, a display device that can be stored in an armrest and a vehicle including the device. Background Art

[0002] With the development of intelligent and connected vehicles, in-vehicle displays have become an indispensable feature of modern cars. They are not only the interactive interface of the infotainment system, but also an important platform for passengers to work and entertain themselves.

[0003] Currently, there are two common placement options for in-vehicle displays for rear-seat passengers. The first is placed behind the front seat headrests. This approach offers the advantage of being closer to the passengers, making them easier to view. However, its disadvantages are also significant: first, the screens are not concealed, which detracts from the overall aesthetics of the vehicle interior; second, due to the size of the headrests, the screens are typically small, resulting in a poor viewing experience.

[0004] The second solution is to place the screen on the vehicle's roof and unfold it using a flip mechanism. This solution allows the screen to be hidden and can be made larger. However, its main drawback is that the screen is far from the passenger seat, making it impossible for passengers to directly touch and control it. Interactivity is poor and control is usually limited to a remote control. This makes it suitable primarily for passive audio and video entertainment and unsuitable for scenarios requiring frequent interaction, such as office work.

[0005] In addition, the vehicle's armrest is usually the part that is most easily reached by the passenger's arms, but the functions of traditional armrests are relatively simple, and their internal space is not fully utilized. They usually only integrate some switch buttons, cup holders or small storage boxes, and have low functional added value.

[0006] Therefore, how to design an in-vehicle display solution that can maintain the beauty of the interior while providing a large-size touch screen that is conveniently located and flexibly adjustable is a technical problem that needs to be urgently solved in this field. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a highly integrated, easy-to-use, flexibly adjustable and completely concealable armrest built-in display device and vehicle in response to the defects of existing vehicle-mounted display screens such as inconvenient location, limited size, inability to touch or hide.

[0008] To address the above technical problems, the present invention provides an armrest device for a vehicle. The armrest device comprises an armrest body having an internal cavity. Its innovation lies in the fact that it also includes a stowable display assembly. The stowable display assembly is movably mounted within the internal cavity of the armrest body and is capable of freely moving between a stowed position within the cavity and a deployed position extending out of the cavity.

[0009] The retractable display assembly consists of the following key parts:

[0010] a display device;

[0011] a deployment mechanism for driving the entire stowable display assembly to move between a stowed position and a deployed position;

[0012] and at least one position adjustment mechanism, by which a user can adjust the position or posture of the display device to obtain an optimal viewing and operating angle when the stowable display assembly is in the unfolded position.

[0013] Through the above-mentioned technical solution, the present invention cleverly conceals the entire display assembly within the armrest. When not in use, the vehicle interior maintains its original neatness and aesthetics, and does not affect passengers' entry and exit. When needed, the deployment mechanism moves the display assembly out of the armrest to a convenient operating area, where passengers can directly interact with the touch screen. Once deployed, the position adjustment mechanism allows users to personalize the screen's front and back position, height, and tilt according to their height, sitting posture, and usage scenario (such as watching movies, video conferencing, processing documents, etc.), greatly improving the comfort and convenience of use. This design not only effectively utilizes the internal space of the armrest, but also simultaneously resolves the contradiction between screen size, operational convenience, and hidden aesthetics in the existing technology.

[0014] As a preferred technical solution, the deployment mechanism can be designed as a lifting mechanism to drive the stowable display assembly between the stowed and deployed positions in a direction generally perpendicular to the upper surface of the armrest assembly. This vertical lifting method provides the shortest path, a compact structure, and enables smooth and rapid deployment and stowage.

[0015] Furthermore, the lifting mechanism can be specifically implemented by disposing a slide rail within the armrest cavity and using a fixed plate connected to the retractable display assembly to slide with the slide rail. This slide rail and slider (fixed plate) structure is mature and reliable, with smooth movement, providing a stable foundation for subsequent multi-dimensional adjustment.

[0016] As another preferred technical solution, the at least one position adjustment mechanism may include a front-to-back position adjustment mechanism for adjusting the front-to-back position of the display device in the vehicle's forward direction. This allows the user to move the screen closer or further away to accommodate different viewing distance requirements.

[0017] Specifically, the front-rear position adjustment mechanism can be composed of a fixed plate and a slide plate, wherein the fixed plate is provided with a slide groove, and the slide plate is connected to the display device and can slide along the slide groove. This structure of sliding in the groove is simple and effective, and is easy to achieve manual smooth adjustment.

[0018] As another preferred technical solution, the at least one position adjustment mechanism may further include a height adjustment mechanism for adjusting the height of the display device, which is crucial for accommodating passengers of different heights or different sitting postures.

[0019] Specifically, the height adjustment mechanism may include a sliding column and a rotating plate connected to the display device, and the rotating plate can slide along the axial direction of the sliding column to achieve height adjustment.

[0020] As another preferred technical solution, the at least one position adjustment mechanism may further include an angle adjustment mechanism for adjusting the pitch angle of the display device. This can effectively eliminate glare caused by ambient light reflection and ensure that the screen is always in the user's sight.

[0021] Specifically, the angle adjustment mechanism can be realized by a rotating shaft or hinge connecting the display device and the rest of the retractable display assembly, which has a simple structure and is easy to adjust.

[0022] To further reduce its storage volume, the stowable display assembly can further include a rotation mechanism that, when the assembly is in the deployed position, drives the display device from a folded position parallel to the deployment direction to an expanded position facing the user. This design allows the screen to "lie sideways" within the armrest, allowing a larger screen to be accommodated within the limited armrest width.

[0023] The present invention also provides a vehicle, the innovation of which lies in including the armrest device described in any of the aforementioned solutions. By incorporating the armrest device of the present invention, the vehicle provides passengers with an unprecedentedly convenient, comfortable, and technologically advanced in-vehicle entertainment and office experience, thereby enhancing the market competitiveness of the vehicle as a whole.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. High space utilization and aesthetics: The screen is integrated into the armrest, effectively utilizing unused space within the vehicle. When not in use, the screen is completely hidden, blending seamlessly into the vehicle interior, maintaining the interior's neatness and design without interfering with passengers getting in and out or their arm placement.

[0026] 2. Excellent human-computer interaction experience: The unfolded screen is within easy reach of passengers, allowing for convenient touch operation. Furthermore, through multiple stable and smooth adjustment mechanisms, the screen's front and back position, height, and tilt can be freely and precisely adjusted. Users can adjust the screen to the most comfortable viewing and operating position based on their height and sitting posture, greatly enhancing convenience and comfort.

[0027] 3. Powerful functions and wide application scenarios: The present invention can be equipped with a larger screen, which can not only meet the passengers' entertainment needs such as watching movies during the journey, but also serve as an efficient mobile office platform to meet the needs of business people for sending and receiving emails, editing documents, etc., expanding the application scenarios of the in-vehicle infotainment system.

[0028] 4. Enhance vehicle value: This novel, technologically advanced design can significantly enhance the vehicle's luxury and market competitiveness, providing users with a novel and distinguished driving experience, thereby increasing customer satisfaction and brand loyalty. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the scope of protection of the present invention.

[0030] Figure 1 Schematic diagram of the structure of the armrest built-in screen device in an expanded state (front view) according to one embodiment of the present invention.

[0031] Figure 2 Schematic diagram of the structure of the armrest built-in screen device in the unfolded state (top view) according to one embodiment of the present invention.

[0032] Figures 3 to 8 Schematic diagram of the movement steps of the armrest built-in screen device in one embodiment of the present invention, wherein Figure 3 It is a hidden state. Figure 4 It is in the upward extended state. Figure 5 It is sliding forward. Figure 6 It is in the unfolded state flipped to the right. Figure 7 It is sliding upward. Figure 8 It is the screen tilt adjustment status.

[0033] Figure 9 FIG. 1 is a schematic diagram of the exploded structure of the main components of a screen device in one embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following further describes the technical solutions (including preferred technical solutions) of the present invention through accompanying drawings and by enumerating some optional embodiments of the present invention. It should be understood that the embodiments described are merely some, and not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figures 1 to 9 This embodiment provides an armrest device for a vehicle. The armrest device is mounted next to a passenger seat 1 of the vehicle and primarily comprises an armrest body 7 and a stowable display assembly mounted therein. The armrest body 7 has a hollow interior structure, forming a cavity for accommodating the stowable display assembly.

[0037] The retractable display assembly is a sophisticated mechatronic module that can be completely hidden in the cavity of the armrest body 7 (the retractable position, such as Figure 3 As shown), the armrest body 7 can also be extended for passengers to use (expanded position, such as Figure 1 and Figures 4 to 8 shown).

[0038] In this embodiment, the retractable display assembly specifically includes: a display screen 6 (as a display device) and a set of composite mechanical structures for realizing its retraction, deployment, and adjustment. The mechanical structure can be specifically decomposed into a deployment mechanism and multiple position adjustment mechanisms.

[0039] The function of the deployment mechanism is to lift the entire assembly from the armrest 7. Figure 1 and Figure 9 As shown, the mechanism is specifically embodied as a lifting mechanism in this embodiment. It includes a pair or more vertical slide rails 8 fixed to the side walls of the internal cavity of the armrest 7, and a fixed plate 2 that slides with the slide rails 8. The other components of the entire retractable display assembly are mounted on this fixed plate 2. When the screen is needed, the deployment mechanism (for example, driven by a motor or assisted by a gas spring) drives the fixed plate 2 to slide upward along the slide rails 8, thereby lifting the entire assembly from the stored position to the initial stage of the deployed position (as shown in FIG. Figure 4 shown).

[0040] Once the assembly is deployed to the deployed position, multiple position adjustment mechanisms allow the user to make fine adjustments.

[0041] Front and rear position adjustment mechanism: Figure 9As shown, the mechanism consists of a fixed plate 2 and a slide plate 3. The fixed plate 2 is machined with a dovetail groove or other form of sliding groove, and the bottom of the slide plate 3 has a dovetail structure that matches the sliding groove. The slide plate 3 can slide along the sliding groove on the fixed plate 2 in the front and back direction (i.e., in the direction of vehicle travel). This allows passengers to move the display screen 6 closer or further away to obtain the most comfortable viewing distance (such as Figure 5 shown).

[0042] Height adjustment mechanism and rotation mechanism: such as Figure 1 and Figure 9 As shown, a slide post (not shown) is vertically fixed on the slide 3. A rotating plate 5 is mounted on the slide post. The rotating plate 5 can slide up and down along the axis of the slide post to adjust the overall height of the display screen 6 (such as Figure 7 The rotation function is mainly used in the unfolding process, which allows the display screen 6 to be rotated 90 degrees from a folded state parallel to the vehicle's driving direction (when stored) to a horizontal screen state facing the passenger (such as Figure 6 shown). Figure 2 The top view in FIG clearly shows the process of the rotating plate 9 (ie, the rotating plate 5 ) rotating from the normal use position 10 to the maximum rotation position 11 .

[0043] Angle adjustment mechanism: Figure 9 As shown, the display screen 6 is connected to the rotating plate 5 via a rotating shaft 12. The rotating shaft 12 allows the display screen 6 to rotate around itself, thereby facilitating passengers to adjust the tilt angle of the screen to avoid glare and obtain the best viewing angle (e.g. Figure 8 shown).

[0044] Usage Process

[0045] Combine Figure 3 The complete usage process of this embodiment is as follows:

[0046] ① Built-in state: the entire display assembly is completely stored inside the armrest 7.

[0047] ② Extend upward: Start the deployment mechanism, the fixed plate 2 rises along the slide rail 8, and brings the assembly body out of the armrest 7.

[0048] ③ Slide forward: The user pulls the slide 3 together with the screen portion thereon forward to a suitable distance as needed.

[0049] ④ Flip and unfold to the right: Rotate the rotating plate 5 90 degrees around the sliding post so that the display screen 6 faces the user.

[0050] ⑤ Slide upward: The user moves the rotating plate 5 up and down along the sliding column to adjust the screen height according to the user's height and sitting posture.

[0051] ⑥ Screen tilt adjustment: The user adjusts the pitch angle of the display screen 6 through the shaft 12 to complete the final setting.

[0052] The storage process is carried out in the reverse order.

[0053] Example 2

[0054] This embodiment describes in detail an armrest device that adopts a fully manual adjustment method, and its structure is as follows: Figures 1 to 9 The device is usually installed in the center armrest or side door armrest on the side of the rear passenger seat 1 of the vehicle.

[0055] 1. Overall structure

[0056] The core of the armrest device includes an armrest body 7 and a set of accommodating display assemblies. The armrest body 7 is composed of an injection-molded or leather-covered frame, and its interior is designed to have a receiving cavity for completely accommodating the entire display assembly when not in operation.

[0057] The retractable display assembly is a multi-component mechanical assembly that can be moved from a retractable position (such as Figure 3 ) to the deployed position extending outside the armrest body 7 (eg Figure 1 and Figure 8 ) and supports multi-degree-of-freedom position and posture adjustment.

[0058] 2. Detailed description of functional modules

[0059] According to the core idea of ​​the present invention, this mechanical assembly is decomposed into two functional modules, namely, a "deployment mechanism" and a "position adjustment mechanism", and described in detail.

[0060] a) Deployment Agency

[0061] The deployment mechanism is embodied as a purely manual vertical lifting mechanism in this embodiment. Its function is to vertically lift the entire display assembly out of the accommodating cavity of the armrest body 7.

[0062] Components: This mechanism primarily consists of two or more slide rails 8 fixed to the inner wall of the housing chamber, and a fixed plate assembly 2. The slide rails 8 are preferably C- or H-shaped guide rails extruded from high-strength aluminum alloy, offering lightweight and high rigidity. Their surfaces are anodized for increased wear resistance. The fixed plate assembly 2 serves as a load-bearing platform, flanked by guide rollers constructed from high-precision bearings and a wear-resistant polymer (such as POM). These guide rollers precisely fit within the track grooves of the slide rails 8.

[0063] Working Principle: When the user needs to use the screen, they pull a handle (not shown) located at the top of the assembly or press a mechanical latch. A pre-installed assist element (such as a gas spring or torsion spring) releases energy, assisting the user in smoothly and vertically lifting the fixed plate assembly 2, along with all its supported components, along the slide rail mechanism 8 until it reaches the preset highest position, which is defined by a mechanical stop at the end of the slide rail. The entire process is moderately damped, providing a premium feel.

[0064] b) Position adjustment mechanism

[0065] When the deployment mechanism completes its mission, the position adjustment mechanism composed of multiple sub-mechanisms begins to play a role, providing users with a personalized adjustment experience.

[0066] Front and rear position adjustment mechanism: This mechanism is used to adjust the front and rear distance of the display assembly 6 after it is extended. It consists of a fixed plate assembly 2 and a sliding plate assembly 3. The upper surface of the fixed plate assembly 2 is processed with a precision slide groove running through its length, and the cross-section of the slide groove is preferably a dovetail groove structure. The bottom surface of the sliding plate assembly 3 is processed with a dovetail slider that perfectly matches it. The matching mode of the dovetail groove and the dovetail slider provides a large contact area and self-centering ability, ensuring that the sliding plate assembly 3 will not produce any lateral shaking when sliding back and forth, ensuring the stability and accuracy of the operation. The user only needs to gently push and pull the sliding plate assembly 3 with his hands to achieve stepless adjustment of the display assembly 6 in the front and rear direction (such as Figure 5 ).

[0067] Integrated design of the rotation mechanism and height adjustment mechanism: This is an ingenious integrated design. A finely ground and chrome-plated sliding post is firmly bolted vertically to the sliding plate assembly 3. A rotating plate assembly 5 is sleeved on this sliding post.

[0068] Rotation function: The rotating plate assembly 5 and the slide column are in rotational cooperation. When the assembly is raised, the display assembly 6 is initially in a longitudinal folded state to save storage space. The user can then pinch the rotating plate assembly 5 or the edge of the screen and rotate it 90 degrees around the center axis of the slide column (such as Figure 6 ), so that the screen changes from portrait to landscape orientation, facing the user. Positioning beads or damping structures are set inside the rotation mechanism to ensure a clear sense of segmentation between the 0-degree and 90-degree positions of the screen, preventing it from shaking freely.

[0069] Height adjustment function: The rotating plate assembly 5 and the slide column are also in sliding cooperation. After rotating to the use angle, the user can hold the screen frame and move the rotating plate assembly 5 up and down along the axis of the slide column to adjust the vertical height of the display assembly 6 (such as Figure 7The matching tolerance between the sliding column and the rotating plate assembly 5 has been carefully designed to ensure smooth sliding while providing sufficient friction so that the screen can stay stably at any height.

[0070] Angle adjustment mechanism: This mechanism is used to adjust the pitch angle of the display assembly 6. The display assembly 6 is not rigidly connected to the rotating plate assembly 5, but is pivotally connected to the front end of the rotating plate assembly 5 via a rotating shaft 12 and a hinge structure. The hinge structure has a built-in high-damping friction plate, allowing the user to easily manually move the upper and lower edges of the screen to adjust its pitch angle (such as Figure 8 ) and can hover stably at any angle. This is crucial for eliminating ambient light reflections from car windows or sunroofs for optimal viewing.

[0071] 3. Storage process

[0072] The folding process is the opposite of the unfolding process: the user first adjusts the screen back to the initial pitch angle, then lowers the rotating plate assembly 5 along the sliding column to the bottom, rotates it 90 degrees back to the longitudinally folded state, then pushes the sliding plate assembly 3 back to the rear end, and finally presses the entire assembly vertically down until it is completely immersed in the accommodating cavity of the armrest body 7 and locked by the mechanical lock.

[0073] Example 3

[0074] Based on the mechanical structure of Example 1 and Example 2, this embodiment introduces a micro motor and an intelligent control system, realizing the electrification and intelligence of all adjustment functions, greatly enhancing the technological sense and ease of use of the product.

[0075] 1. Drive system upgrade

[0076] Electric Deployment Mechanism: The existing manual assisted lift mechanism has been replaced with a miniature lead screw lift module. This module comprises a high-torque DC servo motor, a planetary gear reducer, and a precision ball screw. The servo motor drives the lead screw through the reducer, which in turn drives the nut connected to the fixed plate assembly 2, enabling smooth and silent automatic vertical lift of the entire assembly. The motor's built-in encoder and a Hall effect sensor within the housing cavity work together to precisely control the lift position and identify the start and end positions.

[0077] Electric position adjustment mechanism:

[0078] Fore-aft adjustment: A micro timing belt drive module is installed between the fixed plate assembly 2 and the sliding plate assembly 3. A small stepper motor drives the timing belt, which drives the sliding plate assembly 3 to achieve precise fore-aft position adjustment.

[0079] Height and Rotation Adjustment: The sliding column mounted on the sliding plate assembly 3 is designed as a hollow structure, housing a micro-lifting mechanism that drives the rotating plate assembly 5 up and down. Furthermore, a micro-worm-driven rotary motor is added to the bottom of the sliding column to automatically rotate the entire sliding column and the rotating plate assembly 5 attached to it.

[0080] Angle adjustment: An ultra-thin piezoelectric ceramic motor or micro servo is integrated at the hinge connecting the display component 6 and the rotating plate component 5 to achieve electric adjustment of the pitch angle.

[0081] 2. Intelligent control system

[0082] Core Controller (ECU): A dedicated electronic control unit (ECU) is located within the armrest body 7. It integrates a microprocessor, motor driver chip, power management module, and communication interfaces (such as CAN and LIN buses). The ECU receives user commands and precisely controls the timing, speed, and position of each motor according to pre-set programming.

[0083] User Interface (HMI):

[0084] Physical buttons: A group of physical buttons with a metallic texture and backlight are set on the upper surface of the armrest body 7, including a one-touch operation button for "expand / store", and independent buttons for manual fine-tuning of the front and back, height, and angle.

[0085] Touch interface: The display assembly 6 itself is a touch screen. When it is unfolded, a virtual control bar will appear on the edge of the screen, and the user can adjust its position and posture by touching or sliding on the screen.

[0086] Voice control: The device integrates a microphone array and voice recognition module, allowing users to control it through preset voice commands (such as "Hello, screen. Please expand", "Turn it up a little").

[0087] Memory function: The system provides 2-3 sets of memory positions. After adjusting the screen to the most comfortable position, the user can store it by long-pressing the "M" key. The next time, simply short-press the corresponding number key ("1", "2") and the entire assembly will automatically and continuously move to the preset memory position, achieving true personalization and "one-touch adjustment".

[0088] Safety Protection Mechanism: The ECU has built-in current monitoring to sense resistance to movement in all directions. If an obstacle (such as a passenger's hand or a dropped item) is encountered during deployment or folding, the motor current will increase abnormally. The ECU will immediately detect resistance and command the motor to stop and slightly reverse direction to prevent pinching or damage to the device.

[0089] Through electrification and intelligent upgrades, this embodiment elevates the product from a functional mechanical device to an interactive partner with life and intelligence, providing users with the ultimate luxury and convenience experience.

[0090] It should be noted that, in the description of this specification, the terms "comprise", "include" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or apparatus comprising the element.

[0091] It will be easily understood by those skilled in the art that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. An armrest device for a vehicle, comprising an armrest body having an internal cavity; characterized in that: Also includes: a stowable display assembly movably mounted within the interior cavity of the armrest body and adapted to move between a stowed position within the interior cavity and a deployed position extending out of the interior cavity; The retractable display assembly includes: a display device; a deployment mechanism for driving the stowable display assembly to move between the stowed position and the deployed position; and At least one position adjustment mechanism is used to adjust the position or posture of the display device when the stowable display assembly is in the deployed position.

2. The armrest device according to claim 1, characterized in that: The deployment mechanism is a lifting mechanism for driving the stowable display assembly to move up and down between the stowed position and the deployed position along a direction substantially perpendicular to the upper surface of the armrest device.

3. The armrest device according to claim 2, characterized in that: The lifting mechanism includes a slide rail disposed in the internal cavity, and a fixing plate connected to the retractable display assembly and slidably engaged with the slide rail.

4. The armrest device according to claim 1, characterized in that: The at least one position adjustment mechanism includes a front-rear position adjustment mechanism for adjusting the front-rear position of the display device in the vehicle's forward direction; the front-rear position adjustment mechanism includes a fixed plate and a slide plate, the fixed plate is provided with a slide groove, the slide plate is connected to the display device, and can slide along the slide groove.

5. The handrail device according to claim 1 or 4, characterized in that: The at least one position adjustment mechanism includes a height adjustment mechanism for adjusting the height of the display device; the height adjustment mechanism includes a slide column and a rotating plate connected to the display device, and the rotating plate can slide along the axial direction of the slide column to adjust the height.

6. The handrail device according to claim 1, 4 or 5, characterized in that: The at least one position adjustment mechanism includes an angle adjustment mechanism for adjusting the pitch angle of the display device; the angle adjustment mechanism includes a shaft or hinge connecting the display device and the rest of the retractable display assembly.

7. The armrest device according to claim 1, characterized in that: The stowable display assembly further includes a rotation mechanism for driving the display device to rotate from a folded state to a user-facing unfolded state after the stowable display assembly is in the unfolded position.

8. The armrest device according to claims 5 and 7, characterized in that: The rotating plate can also rotate around the axial direction of the sliding column to realize the rotation of the display device from the folded state to the unfolded state.

9. A vehicle, characterized in that: The utility model comprises the armrest device according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that The vehicle includes a passenger seat, and the armrest device is arranged on one side of the passenger seat.

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