Island device with automatic folding and unfolding of table top

Abstract

This invention relates to an island device with an automatic tabletop retraction function, comprising an island housing, an armrest cover, a tabletop assembly, a lifting assembly, and a bottom guide rail assembly. The island housing is slidably mounted on the bottom guide rail assembly, the armrest cover is located on top of the island housing, and the lifting assembly and tabletop assembly are housed within the island housing. The lifting assembly drives the tabletop assembly to rise and fall, allowing the tabletop assembly to either open the armrest cover and extend into the island housing, or retract into the island housing. This invention achieves automatic tabletop extension and retraction through the lifting assembly, eliminating the need for manual pulling or pushing, significantly improving operational convenience and intelligence. During the upward movement, the tabletop assembly automatically opens the armrest cover; after descent, the armrest cover automatically closes due to its own weight or a reset mechanism, achieving linkage between the cover and the tabletop and avoiding additional manual opening operations.

Description

Technical Field

[0001] This invention relates to the field of automotive interior technology, specifically to a central island device with an automatic table retraction function, which is particularly suitable for the central aisle area between car seats for passenger use. Background Technology

[0002] As automotive cabins evolve towards intelligence and multifunctionality, efficient use of interior space and enhanced user experience have become crucial design goals. Inside a car, the island typically refers to the central tunnel area between the front seats, integrating functions such as an armrest, storage compartments, cup holders, and gear shift mechanism. In recent years, some high-end models have integrated retractable or foldable tables into the island area for rear passengers to place items, work, or dine. However, existing automotive island table systems still have the following shortcomings in practical application:

[0003] First, the operation of unfolding and retracting the tables mostly requires manual operation. For example, rear tables usually require passengers to manually flip them open or pull them out from the back of the front seats, which is cumbersome and laborious. When the vehicle is in motion, it is difficult for the driver or passengers to operate the tables conveniently, posing a safety hazard. In addition, manual operation cannot achieve one-button automatic unfolding and retracting, which goes against the trend of intelligent and automated vehicles.

[0004] Secondly, there is a contradiction between the space occupied by existing car island tables and their unfolded area. Due to the narrow cross-sectional dimensions of the island area, if a single table is used, the usable area after being raised is limited, making it difficult to meet the needs of placing items such as laptops and lunch boxes; if multiple folding tables are used, there is a lack of reliable automatic unfolding and folding mechanisms, which can easily lead to problems such as movement interference, incomplete storage after folding, and uneven desktop after unfolding, affecting the user experience.

[0005] Third, the stability and guiding accuracy of the lifting mechanism are insufficient. During vehicle operation, there are complex conditions such as vibration and bumps. Most existing electric lifting devices rely solely on a single screw or push rod for drive. When the table is subjected to eccentric loads (e.g., when a passenger presses on the edge of the table), it is prone to wobbling, tilting, or even jamming. This not only affects user comfort but may also cause abnormal noises or damage to the internal structure due to unstable movement. Furthermore, the connection between the lifting component and the table is relatively rigid and cannot adapt to changes in the table's angle during unfolding, easily leading to stress concentration or movement interference at the connection point.

[0006] Fourth, the island console's position adjustment capability within the vehicle is limited. In most models, the island area is a fixed structure and cannot slide forward or backward, resulting in no adjustment of the distance between the rear passengers and their seats when using the table, leading to poor comfort. Some movable island units lack reliable guide rail components and locking mechanisms, potentially causing accidental movement while the vehicle is in motion, posing a safety hazard. Furthermore, the armrest cover (i.e., the armrest at the top of the island) lacks an automatic linkage design during the table's raising and lowering process, requiring manual opening or closing, which is inconvenient and prone to collision with the table.

[0007] Fifth, the internal layout of existing automotive island systems is often cluttered, with the lifting components, table components, and electrical wiring lacking proper securing and protective structures. Vibrations during vehicle operation can easily cause components to loosen or produce abnormal noises, and assembly and maintenance are inconvenient. Furthermore, the sealing and aesthetics between the folded table and the island housing are insufficient, affecting the overall quality of the cabin. Summary of the Invention

[0008] To address the aforementioned technical problems, the present invention aims to provide a central island device with an automatic table retraction and folding function. This device enables automatic lifting, unfolding, and folding of the table, and operates smoothly and reliably. It is of great significance for improving the utilization of in-vehicle space, optimizing the rear passenger experience, and promoting the intelligent development of automotive cabins.

[0009] To achieve the objectives of the invention described above, the present invention adopts the following technical solution:

[0010] An island device with an automatic tabletop retraction function includes an island housing, an armrest cover, a tabletop assembly, a lifting assembly, and a bottom guide rail assembly. The island housing is slidably mounted on the bottom guide rail assembly. The armrest cover is located on the top of the island housing. The lifting assembly and the tabletop assembly are located inside the island housing. The lifting assembly drives the tabletop assembly to rise and fall, causing the tabletop assembly to push open the armrest cover and extend out of the island housing, or causing the tabletop assembly to retract into the island housing.

[0011] As a preferred embodiment, the lifting assembly includes a support frame, a lifting motor, a screw, and a connecting block. The support frame has a guide rail on at least one outer side. The screw is arranged longitudinally and rotatably connected to the outer side of the support frame. The connecting block is slidably disposed on the guide rail and is connected to the screw via a nut. The lifting motor is fixed to the lower part of the support frame and drives the screw to rotate. The connecting block is also hinged to one end of the desktop panel assembly. As the connecting block rises and falls, the desktop panel assembly is pushed out or retracted into the island housing.

[0012] As a preferred embodiment, the central island housing is further provided with a base plate, and inverted L-shaped side plates are fixed on both sides of the base plate. A guide column is also fixed between the top of the side plate and the base plate. Side sliders that cooperate with the guide columns are fixed at both ends of the support frame. An electric cylinder for driving the support frame to rise and fall is also provided on the base plate.

[0013] As a preferred embodiment, the support frame includes two side profiles and a lower connecting plate connecting the two side profiles. Two guide rails are respectively fixed on the two side profiles. The lower connecting plate is provided with a lifting nut, which is sleeved on the long screw of the electric cylinder. The lower connecting plate is also provided with a through hole to avoid the electric cylinder.

[0014] As a preferred embodiment, the top of the support frame is also fixed with a middle frame, and the middle frame has elongated through holes on both sides for the desktop panel assembly to extend into and out of. A rotating slider is also hinged to the outside of the elongated through holes. The desktop panel assembly is provided with a sliding groove, and the rotating slider is slidably disposed in the sliding groove.

[0015] As a preferred embodiment, the desktop assembly includes desktop A and desktop B connected by hinges. Hinges mounting recesses are provided on the opposite sides of desktop A and desktop B. The side of the hinge abuts against the side wall of the recess, so that desktop A and desktop B are horizontal when opened.

[0016] As a preferred embodiment, multiple hinges are spaced apart between desktop A and desktop B, with at least one hinge being hinge B. Hinge B includes a hinge block, gear A, and shafts. Two shafts are rotatably mounted on both sides of the hinge block and are fixed to desktop A and desktop B respectively. Gear A is rotatably mounted on the shafts and fixed to the end of the hinge block. Both desktop A and desktop B are equipped with drive motors, and the output shaft of the drive motors is driven by gear B meshing with gear A.

[0017] As a preferred embodiment, one end of the desktop panel A is also provided with a limiting protrusion, and the middle frame is provided with a corresponding limiting recess. When the desktop panel A is folded horizontally, the limiting protrusion is engaged in the limiting recess.

[0018] As a preferred embodiment, the limiting recess is further provided with a guide limiting component, which is an elastic metal strip with a C-shaped opening at the top and an arched shape facing outwards from the middle frame at the bottom. A limiting shaft is also provided on one side of the limiting protrusion, and the limiting shaft is engaged in the C-shaped opening of the guide limiting component.

[0019] As a preferred embodiment, a first support plate is formed in the middle of the frame, and a second support plate is connected to one end of the first support plate via a hinge.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] This invention utilizes a lifting component to automatically raise and lower the desktop panel assembly, achieving automatic extension and retraction of the table without manual pulling or pushing, significantly improving operational convenience and intelligence. During the raising process, the desktop panel assembly automatically opens the armrest cover; upon lowering, the armrest cover automatically closes due to its own weight or a reset mechanism, achieving linkage between the cover and the table, avoiding additional manual opening operations. The island housing slides on the bottom guide rail assembly, allowing the entire island device to move back and forth within the vehicle, adjusting the distance of the table relative to rear passengers to meet the comfort needs of passengers of different sizes or in different usage scenarios (such as office work or dining). The overall structure has a high degree of integration, making full use of the internal space of the island housing, and does not occupy additional cabin space when the table is folded. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention (when the desktop panel assembly is retracted);

[0024] Figure 2 and Figure 3 These are schematic diagrams of the overall structure of the present invention from two different angles (when the desktop panel assembly is unfolded).

[0025] Figure 4 This is a structural schematic diagram of the desktop panel assembly, armrest cover, middle frame, connecting block, and support frame of the present invention.

[0026] Figure 5 This is a schematic diagram of the overall structure of a lifting component according to the present invention (support frame lowered to its lowest height).

[0027] Figure 6 This is a schematic diagram of the overall structure of a lifting assembly according to the present invention (height state of the raised part of the support frame).

[0028] Figure 7 and Figure 8 This is a schematic diagram of the overall structure of the lifting component of another structure of the present invention at two different angles (height state of the raised part of the support frame).

[0029] Figure 9 This is a structural schematic diagram of the desktop panel assembly, armrest cover, connecting block, and middle frame of the present invention.

[0030] Figure 10 This is a partially enlarged structural diagram of the desktop panel assembly, armrest cover, connecting block, and middle frame of the present invention.

[0031] Figure 11 This is a schematic diagram of the hinge structure of the armrest cover and the middle frame of the present invention;

[0032] Figure 12 This is a schematic diagram of the connection structure of the middle frame component, the connecting block, and the two desktop panels A of the present invention;

[0033] Figure 13 This is a partially enlarged structural diagram of the middle frame component, connecting block, and two desktop panels A of the present invention;

[0034] Figure 14 and Figure 15 This is a schematic diagram of the connection structure of the desktop panel A, desktop panel B, first support plate, second support plate and middle frame at two different angles of the present invention.

[0035] Figure 16 This is a partially enlarged structural diagram of the middle frame and desktop panel A of the present invention;

[0036] Figure 17 This is a partially enlarged structural diagram of the desktop panel A, desktop panel B, and hinge B of the present invention.

[0037] Figure 18 This is a partially enlarged structural diagram of the middle frame, the first support plate, the second support plate, and the hinge B of the present invention;

[0038] Figure 19 This is a schematic diagram of the desktop panel assembly of the present invention housed in the central island box (with one side panel removed).

[0039] Figure 20 and Figure 21 This is a schematic diagram of the connection structure between the desktop panel assembly and the middle frame and an armrest cover after the second support plate is retracted from two different angles according to the present invention.

[0040] Figure 22 This is a schematic diagram of the connection structure between the upper frame and the baffle of the present invention.

[0041] The labels in the attached diagram are as follows: 1. Central island housing; 11. Side panel; 12. Limiting frame; 13. Bottom support plate; 15. Top frame; 151. Connecting seat; 152. Locking block; 16. Baffle; 161. Hinge shaft B; 162. Torsion spring B; 2. Handrail cover; 21. Hinge shaft A; 22. Torsion spring A; 3. Bottom guide rail assembly; 4. Lifting assembly; 41. Support frame; 42. Guide rail; 43. Screw; 44. Lifting motor; 45. Mounting bracket; 46. Connecting block; 461. Lifting slider; 460. Protruding column; 47. Base plate; 48. Electric cylinder; 49. Side panel ; 410, Guide post; 411, Side slider; 5, Middle frame; 50, Connecting ear; 51, First support plate; 510, Long through hole; 511, Limiting notch; 52, Second support plate; 53, Hinge C; 61, Desktop plate A; 62, Desktop plate B; 63, Slide groove; 64, Hinge A; 65, Hinge B; 651, Hinge block; 652, Gear A; 653, Shaft; 654, Drive motor; 655, Gearbox; 666, Gear B; 66, Limiting protrusion; 67, Limiting shaft; 68, Connecting notch; 7, Guide limiting component; 8, Rotating slider. Detailed Implementation

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Furthermore, in the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0049] like Figures 1 to 4 As shown, an island device with an automatic tabletop retraction function includes an island housing 1, an armrest cover 2, a tabletop assembly, a lifting assembly 4, and a bottom guide rail assembly 3. The island housing 1 is slidably mounted on the bottom guide rail assembly 3. The armrest cover 2 is located on the top of the island housing 1. The lifting assembly 4 and the tabletop assembly are located inside the island housing 1. The lifting assembly 4 drives the tabletop assembly to rise and fall, so that the tabletop assembly pushes open the armrest cover 2 and extends out of the island housing 1, or so that the tabletop assembly retracts into the island housing 1.

[0050] The aforementioned structure uses a lifting assembly to automatically raise and lower the desktop panel assembly, enabling automatic extension and retraction of the table without manual pulling or pushing, significantly improving operational convenience and intelligence. During the raising process, the desktop panel assembly automatically opens the armrest cover; upon lowering, the armrest cover automatically closes due to its own weight or a reset mechanism, achieving linkage between the cover and the table and avoiding additional manual opening operations. The island unit slides along the bottom guide rail assembly, allowing the entire island device to move back and forth within the vehicle, adjusting the distance of the table relative to rear passengers to meet the comfort needs of passengers of different sizes or for different usage scenarios (such as office work or dining). The overall structure has a high degree of integration, making full use of the internal space of the island unit, and does not occupy additional cabin space when the table is folded.

[0051] like Figure 5 and Figure 6 As shown, the lifting assembly 4 includes a support frame 41, a lifting motor 44, a screw 43, and a connecting block 46. The support frame 41 has a guide rail 42 on at least one outer side. The screw 43 is arranged longitudinally and is rotatably connected to the outer side of the support frame 41. The connecting block 46 is slidably arranged on the guide rail 42 and is connected to the screw 43 by a nut. The lifting motor 44 is fixed to the lower end of the outer side of the support frame 41 by a mounting bracket 45 and drives the screw 42 to rotate. The connecting block 46 is also hinged to one end of the desktop assembly. As the connecting block 46 rises and falls, the desktop assembly is pushed out or retracted into the central island box 1.

[0052] The above structure employs a screw-nut transmission and guide rail-guided lifting mechanism, which offers advantages such as smooth transmission, good self-locking, and strong load-bearing capacity. The guide rail restricts the rotational freedom of the connecting block, ensuring that it moves only in a vertical straight line, thereby guaranteeing the directionality and stability of the desktop panel assembly during lifting. The lifting motor is fixed to the lower part of the support frame, lowering the overall center of gravity and reducing vibration. The connecting block is hinged to one end of the desktop panel assembly, allowing the desktop panel assembly to rotate relative to the connecting block during lifting, providing freedom for the subsequent unfolding of the desktop panel and avoiding motion interference or stress damage caused by rigid connections.

[0053] The central island housing 1 is also provided with a base plate 47, and inverted L-shaped side plates 49 are fixed on both sides of the base plate 47. A guide column 410 is also fixed between the top of the side plate 49 and the base plate 47. Side sliders 411 that cooperate with the guide columns 410 are fixed at both ends of the support frame 41. An electric cylinder 48 that drives the support frame 41 to rise and fall is also provided on the base plate 47.

[0054] A secondary lifting mechanism driven by an electric cylinder was added to the original screw-driven lifting system, achieving dual lifting adjustment. The electric cylinder drives the overall lifting of the support frame, further increasing the total extension height of the tabletop assembly to accommodate passengers of different heights or different usage postures (such as sitting or semi-reclining). The cooperation between the guide column and the side slider provides precise guidance for the lifting of the support frame, preventing tilting or swaying during lifting and improving overall rigidity. The inverted L-shaped side panel structure is compact, accommodating the guide column and side slider within the limited central island space, while also enhancing the load-bearing capacity of the base plate.

[0055] The top of the support frame 41 is also fixed with a middle frame 5. The support frame is a hollow column, and the electric cylinder 48 is located inside the hollow column, with its top fixed to the middle frame 5. Arranging the electric cylinder inside the support frame fully utilizes its hollow structure, saving space within the island housing and avoiding potential damage or wiring interference caused by exposed electric cylinders. The top of the electric cylinder is fixed to the middle frame, which serves as a support platform for the folding and unfolding of the desktop panel assembly. The electric cylinder directly drives the middle frame to rise and fall, resulting in a short power transmission path and high efficiency. Simultaneously, the support frame protects the electric cylinder from dust and foreign objects, improving reliability in automotive vibration environments.

[0056] like Figure 7 and Figure 8 As shown, in other embodiments, the support frame 41 includes two side profiles and a lower connecting plate connecting the two side profiles. Two guide rails 42 are respectively fixed on the two side profiles. The lower connecting plate is provided with a lifting nut. The lifting nut is sleeved on the long screw 481 of the electric cylinder 48. The lower connecting plate is also provided with a through hole to avoid the electric cylinder 48.

[0057] The side profiles can be made of aluminum alloy or extruded steel, and the lower connecting plate connects them into a portal frame. This reduces weight while ensuring bending and torsional rigidity, which helps reduce the overall vehicle energy consumption. Two guide rails are fixed to the side profiles respectively, and the connecting block is a cross-joint structure, which allows the left and right sides to move synchronously when the tabletop assembly is raised and lowered, preventing warping or jamming on one side. This is especially suitable for tabletops with larger widths and improves the stability of the first stage of lifting.

[0058] The lifting nut is set on the lower connecting plate. When the long screw of the electric cylinder drives the nut, the force is evenly transmitted to the profiles on both sides through the lower connecting plate, avoiding eccentric torque and making the support frame rise and fall smoothly as a whole.

[0059] A through-hole is provided on the lower connecting plate to allow the electric cylinder to pass through when the support frame descends, thus accommodating the long-stroke electric cylinder without increasing the overall height. This design minimizes the height of the two-stage lifting mechanism in the retracted state, meeting the requirements of the automotive cabin for a low ceiling, saving axial space, and achieving a compact layout.

[0060] like Figures 9 to 13 As shown, the middle frame 5 has elongated through holes 510 on both sides for the desktop panel assembly to extend into and out, and a rotating slider 8 is hinged to the outside of the elongated through holes 510. The desktop panel assembly has a sliding groove 63, and the rotating slider 8 is slidably disposed in the sliding groove 63.

[0061] The elongated through-hole provides a channel for the lifting and lowering of the desktop panel assembly, while also limiting its range of motion. The interaction between the rotating slider and the slide groove forms a linkage-slider mechanism. When the desktop panel assembly is raised or lowered, the rotating slider slides within the slide groove and rotates with the unfolding angle of the desktop panel assembly, guiding it along a preset trajectory. This ensures that the desktop panel can smoothly transition from a vertical to a horizontal position during extension, or from a horizontal to a vertical position during retraction. This structure prevents the desktop panel from jamming or colliding with the edge of the middle frame, achieving an automatic guiding function.

[0062] The desktop assembly includes desktop A61 and desktop B62 connected by hinges. Hinges are provided on the opposite sides of desktop A61 and desktop B62. The side of the hinge abuts against the side wall of the recess, so that desktop A61 and desktop B62 are horizontal when opened.

[0063] Featuring a folding structure with two tabletop panels, the design minimizes thickness when folded, facilitating storage within the island enclosure. When unfolded, it offers twice the area of ​​a single tabletop, significantly increasing usable space. The hinge mounting notch design ensures the hinge side abuts against the notch sidewall, limiting excessive flipping when the tabletop is opened. This guarantees that both tabletops are precisely level when unfolded, preventing unevenness or sagging caused by hinge gaps, thus improving tabletop stability and user comfort.

[0064] like Figures 14 to 18 As shown, multiple hinges are spaced apart between desktop A61 and desktop B62, at least one of which is hinge B65. Hinge B65 includes a hinge block 651, gear A652, and shaft 653. Two shafts 653 are rotatably mounted on both sides of the hinge block 651 and fixed to desktop A61 and desktop B62 respectively. Gear A652 is rotatably mounted on shaft 653 and fixed to the end of hinge block 651. Both desktop A61 and desktop B62 are equipped with drive motors 654. The output shaft of the drive motor 654 is driven by gear B666 meshing with gear A652.

[0065] By incorporating a drive motor, gear A, and gear B at the hinges, the tabletops A and B are electrically and automatically unfolded and folded, eliminating the need for manual folding by passengers and enhancing automation. The gear transmission features precise transmission ratios and excellent motion synchronization, ensuring the two tabletops rotate relative to each other at the same angular velocity, resulting in smooth and shock-free unfolding and folding movements. Multiple hinges (including a standard hinge and hinge B) share the load, improving the rigidity and reliability of the tabletop connections and preventing loosening or deformation after prolonged use.

[0066] As a further preferred embodiment, the output shaft of the drive motor 654 is connected to gear B665 via a gearbox 655. The gearbox provides speed reduction and torque amplification, converting the high-speed, low-torque output of the drive motor into a low-speed, high-torque output, resulting in smoother and more powerful unfolding and folding of the desktop, especially suitable for scenarios requiring overcoming inertial forces and friction in automotive vibration environments. Simultaneously, the gearbox can change the direction of the output shaft, facilitating a compact arrangement of the motor within the desktop and reducing its impact on the desktop's thickness.

[0067] One end of the desktop panel A61 has a connecting recess 68, and the connecting block 46 has a protruding post 460 that extends into the connecting recess 68 and is hinged via a long shaft. The cooperation between the connecting recess and the protruding post enables the hinge between the desktop panel assembly and the lifting assembly. Simultaneously, the connecting recess provides space for the hinge point, making the connection structure more compact and reducing encroachment on external space. The long shaft hinge increases the hinge length, improves torsional resistance, prevents the desktop panel from laterally swaying relative to the connecting block during lifting or use, and enhances stability.

[0068] One end of the desktop panel A61 is also provided with a limiting protrusion 66, and the middle frame 5 is provided with a corresponding limiting recess 511. When the desktop panel A61 is folded horizontally, the limiting protrusion 66 is engaged in the limiting recess 511. When the desktop panel is unfolded to a horizontal state, the limiting protrusion engages with the limiting recess, forming a mechanical limit to prevent the desktop panel from further flipping upwards or folding back due to vibration under load. This structure locks the horizontal position of the desktop panel, improves the load-bearing capacity and impact resistance of the desktop, and prevents the desktop from tipping over when passengers press the edge of the desktop, ensuring safety and stability during use.

[0069] The limiting recess 511 is further provided with a guide limiting component 7, which is an elastic metal strip with a C-shaped opening at the top and an arched shape facing outwards from the middle frame 5 at the bottom. A limiting shaft 67 is also provided on one side of the limiting protrusion 66, and the limiting shaft 67 is engaged in the C-shaped opening of the guide limiting component 7. The guide limiting component, made of an elastic metal strip, has both guiding and limiting functions. During the unfolding of the desktop, the limiting shaft slides in along the C-shaped opening, guiding the limiting protrusion accurately into the limiting recess. When the desktop is fully unfolded, the limiting shaft is engaged at the bottom of the C-shaped opening, while the lower arched structure provides elastic pre-tightening force, ensuring a tight fit between the limiting protrusion and the recess, eliminating gaps and preventing shaking or abnormal noise during use. When folding, elastic deformation allows the limiting shaft to disengage, achieving repeatable elastic engagement; the structure is simple and reliable.

[0070] A first support plate 51 is formed in the middle of the middle frame 5, and a second support plate 52 is connected to one end of the first support plate 51 via a hinge. The second support plate, which can be folded up, is provided on the middle frame, further expanding the usable area above the middle frame. When the desktop assembly is fully extended and unfolded, the second support plate can be flipped to a horizontal state, forming a larger continuous tabletop together with the desktop. When folded up, the second support plate can be flipped and stacked on the first support plate, and is covered by the armrest cover, without occupying additional height space, thus improving the space utilization of the island device.

[0071] The hinge between the first and second support plates is also a hinge B65. Hinge B65 includes a hinge block 651, gear A652, and shaft 653. Two shafts 653 are rotatably mounted on both sides of the hinge block 651 and fixed to the first support plate 51 and the second support plate 52, respectively. Gear A652 is rotatably mounted on the shaft 653 and fixed to the end of the hinge block 651. Both the first and second support plates 51 and 52 are equipped with drive motors 654. The output shaft of the drive motor 654 is driven by gear B666 meshing with gear A652. Using the same electrically driven hinge structure as the desktop panel, the second support plate can be automatically flipped without manual operation, further improving the overall vehicle's intelligence level. The same driving principle simplifies the types of parts, facilitating manufacturing and maintenance. The electric flipping control can be coordinated with the lifting and unfolding actions of the desktop panel assembly to achieve one-button fully automatic unfolding and retraction.

[0072] The middle frame 5 has connecting ears 50 on both sides. The armrest cover 2 is rotatably connected to the connecting ears 50 via a hinge shaft A21. A torsion spring A22 is also provided on the hinge shaft A21. The torsion spring A22 ensures that the armrest cover 2 is always fastened to the top of the island housing 1. The torsion spring A22 provides a continuous closing force for the armrest cover, ensuring that the armrest cover can automatically reset and tightly fasten to the top of the island housing after the tabletop assembly is retracted, without requiring manual closing by the passenger. At the same time, when the tabletop assembly rises, the tabletop pushes open the armrest cover against the torsion spring force, and after descending, the armrest cover automatically closes under the action of the torsion spring, realizing the linkage between the armrest cover and the tabletop, avoiding additional manual operation, and the elastic cushioning of the torsion spring can reduce the impact and noise when the cover is opened and closed.

[0073] like Figures 19 to 22 As shown, the central island housing 1 includes side panels 11, limiting frames 12, and a bottom support plate 13. Multiple side panels 11 and the bottom support plate 13 are fixedly arranged to form a frame. The limiting frame 12 is located around the folded desktop panel assembly and is fixed to the bottom support plate 13. The side panels, bottom support plate, and limiting frame constitute a stable housing structure. The limiting frame surrounds the desktop panel after it is folded, serving to limit and protect it, preventing the desktop panel from lateral swaying or colliding with the inner wall of the housing during vehicle vibration. The limiting frame is fixed to the bottom support plate, enhancing the rigidity and deformation resistance of the housing bottom and providing a stable installation foundation for the lifting assembly.

[0074] An upper frame 15 is fixed to the upper part of the two side panels 11. The upper frame 15 is fixed to the side panels 11 by a locking block 152. A baffle 16 is provided at the lower part of the upper frame 15. A connecting seat 151 is provided on the upper frame 15. A hinge shaft B161 is provided on the baffle 16. The two baffles 16 are hinged to the upper frame 15 by the cooperation of the hinge shaft B161 and the connecting seat 151. A torsion spring B162 is also provided on the hinge shaft B161. When the desktop panel assembly extends out of the island housing 1, the baffle 16 is fastened to the upper frame 15 under the action of the torsion spring B162. The baffle automatically fastens to the upper frame after the desktop panel assembly extends, covering the gap between the desktop panel and the middle frame, preventing foreign objects from falling into the interior of the island housing, and improving the aesthetics of the cabin. Torsion spring B provides the closing force, causing the baffle to automatically flip and close after the desktop is fully extended, eliminating the need for manual operation. When the desktop retracts, its edge pushes the baffle upward against the torsion spring force, clearing the passage. This structure enables the baffle to open and close automatically, fully linked to the desktop's lifting and lowering motion, improving the overall automation and safety performance of the machine.

[0075] In summary, this invention, through the systematic design of lifting components, desktop components, middle frame, housing, guide rail components, and multiple sets of linkage mechanisms, constructs a fully functional, stable, and highly automated automotive island table device. Its overall technical advantages are reflected in the following aspects:

[0076] 1. Fully automated process: From the extension of the tabletop, the opening of the armrest cover, the unfolding of the tabletop, and the closing of the baffle, to the reverse folding, the reset of the armrest cover, and the storage of the tabletop, all actions are driven by motors and automatically linked, realizing "one-button" operation.

[0077] 2. Strong structural stability: The dual lifting mechanism, multi-stage guiding system and multiple mechanical limit design ensure that the table remains stable, without shaking or abnormal noise under the vibration environment of automobiles and the condition of off-center load.

[0078] 3. High space utilization: Through designs such as folding tabletops, electric cylinders hidden in the support frame, and compact hinged structures, maximum functional integration and expanded usable area are achieved within the limited island space.

[0079] 4. High safety and reliability: Self-locking transmission, mechanical limit, protective baffle, shock-resistant design and other multiple protections ensure the safety of the system during vehicle operation and the reliability of long-term use.

[0080] 5. Superior User Experience: One-button operation, adjustable height and position, flat and stable desktop, and a beautiful and clean cabin comprehensively enhance the comfort and technological experience of rear passengers.

[0081] This invention effectively solves the technical problems of low automation, poor stability, insufficient space utilization, and cumbersome operation of existing automotive island table devices, and provides a practical and feasible technical solution for the intelligent and multifunctional development of automotive cockpits.

[0082] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A central island device with an automatic tabletop retraction function, characterized in that: The device includes a central island housing (1), an armrest cover (2), a desktop assembly, a lifting assembly (4), and a bottom guide rail assembly (3). The central island housing (1) is slidably mounted on the bottom guide rail assembly (3). The armrest cover (2) is mounted on the top of the central island housing (1). The lifting assembly (4) and the desktop assembly are mounted inside the central island housing (1). The lifting assembly (4) drives the desktop assembly to rise and fall, so that the desktop assembly pushes open the armrest cover (2) and extends out of the central island housing (1), or so that the desktop assembly retracts into the central island housing (1).

2. The island device with automatic table retraction function according to claim 1, characterized in that, The lifting assembly (4) includes a support frame (41), a lifting motor (44), a screw (43), and a connecting block (46). The support frame (41) has a guide rail (42) on at least one outer side. The screw (43) is arranged longitudinally and is rotatably connected to the outer side of the support frame (41). The connecting block (46) is slidably arranged on the guide rail (42) and is connected to the screw (43) by a nut. The lifting motor (44) is fixed to the lower part of the support frame (41) and drives the screw (42) to rotate. The connecting block (46) is also hinged to one end of the desktop assembly. As the connecting block (46) rises and falls, the desktop assembly is pushed out or retracted into the central island box (1).

3. The island device with automatic tabletop retraction function according to claim 2, characterized in that, The central island box (1) is also provided with a base plate (47), and inverted L-shaped side plates (49) are fixed on both sides of the base plate (47). A guide column (410) is also fixed between the top of the side plate (49) and the base plate (47). Side sliders (411) that cooperate with the guide column (410) are fixed at both ends of the support frame (41). An electric cylinder (48) that drives the support frame (41) to rise and fall is also provided on the base plate (47).

4. The island device with automatic tabletop retraction function according to claim 3, characterized in that, The support frame (41) includes two side profiles and a lower connecting plate connecting the two side profiles. Two guide rails (42) are fixed on the two side profiles respectively. The lower connecting plate is provided with a lifting nut. The lifting nut is sleeved on the long screw (481) of the electric cylinder (48). The lower connecting plate is also provided with a through hole to avoid the electric cylinder (48).

5. The island device with automatic tabletop retraction function according to claim 2, characterized in that, The top of the support frame (41) is also fixed with a middle frame (5). The middle frame (5) has long through holes (510) on both sides for the desktop panel assembly to extend into and out. A rotating slider (8) is also hinged to the outside of the long through holes (510). The desktop panel assembly has a sliding groove (63), and the rotating slider (8) is slidably disposed in the sliding groove (63).

6. The island device with automatic table retraction function according to claim 5, characterized in that, The desktop assembly includes desktop A (61) and desktop B (62) connected by hinges. The opposite sides of desktop A (61) and desktop B (62) are provided with hinge mounting recesses. The side of the hinge abuts against the side wall of the recess, so that desktop A (61) and desktop B (62) are horizontal when opened.

7. The island device with automatic table retraction function according to claim 6, characterized in that, Multiple hinges are spaced apart between desktop A (61) and desktop B (62), at least one of which is hinge B (65). Hinge B (65) includes a hinge block (651), gear A (652) and shaft (653). Two shafts (653) are rotatably disposed on both sides of the hinge block (651) and fixed to desktop A (61) and desktop B (62) respectively. Gear A (652) is rotatably disposed on shaft (653) and fixed to the end of hinge block (651). Both desktop A (61) and desktop B (62) are provided with drive motors (654). The output shaft of the drive motor (654) is driven by gear B (666) meshing with gear A (652).

8. The island device with automatic table retraction function according to claim 6, characterized in that, One end of the desktop panel A (61) is also provided with a limiting protrusion (66), and the middle frame (5) is provided with a corresponding limiting recess (511). When the desktop panel A (61) is folded horizontally, the limiting protrusion (66) is locked in the limiting recess (511).

9. The island device with automatic table retraction function according to claim 8, characterized in that, The limiting notch (511) is also provided with a guide limiting member (7), which is an elastic metal strip with a C-shaped opening at the top and an arched shape facing the outside of the middle frame (5) at the bottom. The limiting protrusion (66) is also provided with a limiting shaft (67) on one side, which is engaged in the C-shaped opening of the guide limiting member (7).

10. The island device with automatic table retraction function according to claim 4, characterized in that, A first support plate (51) is formed in the middle of the frame (5), and a second support plate (52) is connected to one end of the first support plate (51) by a hinge.

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