Lightweight platformized seat table

Abstract

The utility model discloses a kind of light-weight platformization seat table board, including table board skeleton assembly, lower cover plate cladding assembly, upper cover plate cladding assembly, unlocking button and decorative plate, the table board skeleton in the table board skeleton assembly is by die-casting integrated, one side of the table board skeleton is connected with lower cover plate cladding assembly by clamping, and the other opposite side is screwed with upper cover plate cladding assembly, the unlocking button and decorative plate are connected with the side of upper cover plate cladding assembly opposite table board skeleton by screw.The utility model realizes light-weight by the change of table board skeleton assembly structure, the change of material and the change of technology, by table board skeleton as the core of table board skeleton assembly platformization, by screw or metal buckle mode and lower cover plate cladding assembly, upper cover plate cladding assembly, unlocking button and decorative plate etc. Appearance piece is connected, realizes the assembly mode of " building blockization ", therefore, table and chair table board can realize platformization.

Description

Technical Field

[0001] This utility model belongs to the field of chair and table boards, specifically relating to a lightweight platform-based chair and table board. Background Technology

[0002] With the rapid development of new energy vehicles, market competition is becoming increasingly fierce. Adapting to market demands for product platformization and lightweighting is crucial. As an integrated functional component, the car seat table is no exception. Existing seat tables, such as those with patent number "2024232470264" and utility model name "A Thin and Lightweight Seat Table," have the following problems:

[0003] 1. In terms of structure, the support frame includes a front crossbeam, a rear crossbeam, a first longitudinal crossbeam, a second longitudinal crossbeam, a left support plate, and a right support plate. The first and second longitudinal crossbeams are fixed between the front and rear crossbeams by welding. The first and second longitudinal crossbeams are spaced apart and face the lower cover plate. The left and right support plates are fixed to the left and right sides of the front and rear crossbeams by welding. Therefore, the support frame adopts a combination of six steel stamping parts and welding, making the structure more complex and heavier.

[0004] 2. Regarding the manufacturing process and assembly of the support frame, the six steel components are stamped parts. Therefore, the six steel parts need to be stamped and sorted separately, and then welded into the support frame by laser welding. Since the support frame is made of steel, an electrophoresis process is also required to prevent corrosion. Therefore, the support frame requires stamping, sorting, laser welding, electrophoresis, and other processes. This not only results in a long dimensional chain, but also increases the accumulation of errors due to the assembly of multiple parts, leading to poor precision and stability. Furthermore, it requires a large investment in tooling, molds, welding equipment, etc., which greatly increases assembly time and raises manufacturing and assembly costs.

[0005] 3. Regarding the materials used in the support frame, the front crossbeam, rear crossbeam, first longitudinal crossbeam, second longitudinal crossbeam, left support plate, and right support plate are all made of stamped steel, and the density of steel is 7.8 g / cm³. 3 This further increases the weight of the support frame, making it weigh 650-700g.

[0006] 4. Regarding the connection between the support frame and the upper and lower cover plates, the support frame is connected to the upper cover plate by screws, and the upper cover plate is engaged with the lower cover plate by the four-sided claws. The support ribs in the middle of the two also need to be engaged with each other. The upper and lower cover plates are mostly made of PC+ABS material. When subjected to external force, the two will deform and produce abnormal noise.

[0007] 5. Regarding the connection between the top cover, the unlock button, and the decorative panel, the existing unlock button and decorative panel are welded to the top cover by vibration friction welding. Therefore, in addition to stamping, sorting, laser welding, and electrophoresis processes, a separate vibration friction welding process is required on the final assembly line, which further increases assembly time and raises manufacturing and assembly costs.

[0008] 6. The pop-up structure uses a reset spring to unlock the seat table. However, the existing reset spring is connected to the table mounting bracket by screws and then cooperates with the upper linkage. Since the stroke of the reset spring is limited, the spring force needs to be increased in order to pop up the seat table. Therefore, there will be a lot of noise during the pop-up process. In addition, the reset spring is expensive and does not slide smoothly during the unfolding of the table.

[0009] 7. Due to the complexity of the structure and manufacturing process, the seat and table have too many parts, a scattered structure, and an excessively long assembly line. In addition, the unlocking button and the decorative panel are welded to the upper cover, and the upper cover needs to pass through the support frame to be snapped into the lower cover. When the decorative panel, upper cover, or lower cover needs to be changed due to styling requirements, multiple parts need to be modified. It is impossible to achieve an independent support frame and to allow for the modification of external parts such as decorative panels, upper cover, and lower cover. Therefore, the existing seat and table cannot be platform-based. Utility Model Content

[0010] The purpose of this utility model is to solve the above-mentioned problems by providing a lightweight, platform-based seat / tabletop. This seat / tabletop achieves lightweighting through changes in the tabletop frame assembly structure, materials, and manufacturing process. The tabletop frame serves as the core of the platform-based tabletop assembly, and is connected to the lower cover plate assembly, upper cover plate assembly, unlocking button, and decorative panels via screws or metal clips, achieving a "modular" assembly method. Therefore, the tabletop for the chair and seat is platform-based.

[0011] To achieve the above objectives, this utility model provides a lightweight platform-type seat / table, including a table frame assembly, a lower cover plate covering assembly, an upper cover plate covering assembly, an unlock button, and a decorative panel. The table frame in the table frame assembly is integrally formed by die casting. One side of the table frame is connected to the lower cover plate covering assembly by snap-fit, and the other opposite side is screwed to the upper cover plate covering assembly. The upper cover plate covering assembly has an unlock button and a decorative panel connected to the side opposite the table frame by screws.

[0012] As a further optimization, the table frame includes a four-sided frame and a cross frame. The four-sided frame and the cross frame are connected to form multiple weight-reducing holes. The four-sided frame and the cross frame have reserved slots and mounting holes. The reserved slots are equipped with metal buckles. The table frame assembly is snapped into the lower cover plate assembly through the metal buckles. Screws pass through the mounting holes to screw the table frame assembly into the upper cover plate assembly. The four-sided frame also has upwardly protruding positioning posts, and the two sides opposite the seat end have connecting rod grooves.

[0013] As a further optimization, the tabletop frame assembly includes a tabletop frame, a four-bar linkage structure, and a tabletop mounting bracket. The tabletop frame is rotatably connected to one end of the upper and lower links in the four-bar linkage structure, and the other end of the upper and lower links is rotatably connected to the tabletop mounting bracket.

[0014] As a further optimization, a damper is provided at the connection between the table frame and the upper connecting rod.

[0015] As a further optimization, pins are connected to the two side arms of the table frame relative to the lower connecting rod. A bushing is provided on the pin. The lower connecting rod is rotatably connected to the pin through the bushing. The pin is fixed to the table frame by a C-clamp.

[0016] As a further optimization, the upper connecting rod and the lower connecting rod are rotatably connected to the tabletop mounting bracket by a stepped rivet, and a coil spring is sleeved on the stepped rivet connecting the upper connecting rod to the tabletop mounting bracket. One end of the coil spring is stuck in the groove of the tabletop mounting bracket, and the other end is stuck in the groove of the upper connecting rod.

[0017] As a further optimization, the end of the upper connecting rod relative to the tabletop mounting bracket needs to be bent upwards, and the bending angle is on the same plane as the connected tabletop mounting bracket.

[0018] As a further optimization, the table frame is made of aluminum alloy or magnesium alloy.

[0019] As a further optimization, the lower cover plate in the lower cover plate covering assembly has a claw that engages with the table frame and a positioning rib that positions it relative to the table frame on the side of the lower cover plate relative to the table frame, an installation groove relative to the unlock button, and a clearance opening relative to the four-bar linkage structure on the side of the lower cover plate relative to the table frame. The lower cover plate also has multiple honeycomb-shaped support ribs on the side of the lower cover plate relative to the table frame.

[0020] As a further optimization, the top cover of the upper cover assembly has a mounting post on the side of the upper cover relative to the table frame assembly that is screwed to the table frame, and a clearance opening at the position relative to the unlock button. Screws pass through the table frame, the unlock button, and the upper cover in sequence to screw the unlock button into the clearance opening. The upper cover assembly has a decorative panel mounting opening at the position relative to the decorative panel, and screws pass through the table frame, the decorative panel, and the upper cover in sequence to screw the decorative panel into the decorative panel mounting opening. The side of the upper cover relative to the table frame has multiple honeycomb-shaped support ribs.

[0021] Advantages and beneficial effects of this utility model

[0022] 1. In terms of structure, the table frame of this utility model is integrally die-cast from the four-sided frame and the cross frame, and is provided with metal buckles and mounting holes on the four-sided frame and the cross frame. It also has weight-reducing holes in non-stress areas. Compared with the traditional support frame which uses 6 steel stamping parts and welding, the structure is simpler and lighter.

[0023] 2. In terms of process and assembly, the table frame of this utility model is integrally die-cast from aluminum alloy or magnesium alloy. Compared with the traditional support frame which uses a combination of steel stamping and welding, the dimensional chain is shorter, avoiding the accumulation of errors caused by assembling multiple parts, resulting in better precision and stability. At the same time, it simplifies the process and assembly, eliminating the stamping, sorting, laser welding, electrophoresis and other processes, as well as the required equipment and assembly stations, required by the traditional support frame. The tooling cost is less than one-tenth of the original.

[0024] 3. Regarding the material of the table frame in this utility model, the aluminum alloy material used for the table frame in this application has a density of 2.8 g / cm³. 3 The traditional frame uses steel with a density of 7.8 g / cm³. 3 Therefore, the weight of the table frame is about half of the original, making the chair and table lighter. If it is made of die-cast magnesium alloy, the density of magnesium alloy reaches 1.8g / cm³. 3 This will further achieve lightweighting.

[0025] 4. Regarding the connection between the tabletop frame and the upper and lower cover assemblies, this utility model uses the tabletop frame to isolate the upper and lower cover assemblies. By adding mounting holes to the tabletop frame, screws are passed through the mounting holes to connect the tabletop frame to the upper cover assembly. By adding metal clips to the tabletop frame, the tabletop frame is snapped into place with the lower cover assembly. This avoids direct contact between the upper and lower cover assemblies and solves the problem of abnormal noise without changing the materials.

[0026] 5. In this utility model, the unlocking button and the two decorative panels are connected to the upper cover plate assembly by screws passing through the table frame. Therefore, for the unlocking button, two screws are sufficient to integrate and fix the unlocking button, the table frame, and the upper cover plate. For the decorative panels, four screws are sufficient to integrate and fix each decorative panel, the table frame, and the upper cover plate. That is, the same screw can fix three parts. Therefore, the number of times the table frame and the upper cover plate assembly are installed with screws is reduced, and the vibration friction welding process and the vibration friction welding station on the final assembly line are also saved. When the decorative cover plate or the upper cover plate assembly and the lower cover plate assembly need to be changed according to customer requirements, they can be replaced individually, further reducing assembly time and manufacturing and assembly costs.

[0027] 6. This utility model has a coil spring fitted on the rivet that connects the original upper connecting rod to the tabletop mounting bracket. One end of the coil spring is engaged in the groove of the tabletop mounting bracket, and the other end is engaged in the groove of the upper connecting rod. Therefore, the coil spring can continuously output a rebound force on the upper connecting rod by storing the potential energy through torsion, so the unfolding is smoother and the cost is relatively lower. There will also be no loud noise when opening.

[0028] 7. This utility model adopts an aluminum alloy die-cast frame, integrating the original six scattered stamped parts into a single casting, achieving a high degree of structural integration. This allows the table frame to serve as the core of the table frame assembly platform. When the size needs to be adjusted to adapt to different vehicle models, only the table frame needs to be changed, while other matching components, such as the four-bar structure, table mounting bracket, damper, metal buckle, etc., can be reused. Therefore, new product development is reduced, the trial and error process and error risk required by traditional development are avoided, and R&D and manufacturing costs are reduced.

[0029] 8. This utility model standardizes the table frame, four-bar structure, table mounting bracket, coil spring, metal buckle, damper, fastener, etc., based on the common installation requirements of the table frame assembly, to form a platform-based table frame assembly. It also adopts a "building block" approach to connect the decorative panel, unlock button, upper cover plate covering assembly and lower cover plate covering assembly and other external parts to the table frame assembly with screws and metal buckles, so that the table frame assembly can be independently designed and the external parts can be configured differently according to the customer's personalized needs, thus realizing the platformization of the seat table. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the seat table provided in this embodiment of the utility model installed on the seat;

[0032] Figure 2 This is an exploded view of the chair and table provided in this embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the table frame assembly provided in this embodiment of the utility model;

[0034] Figure 4 This is a rear view of the table frame assembly provided in this embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of the lower cover plate structure provided in an embodiment of the present utility model;

[0036] Figure 6 This is a schematic diagram of the chair and table provided in an embodiment of the present utility model;

[0037] Figure 7 This is provided by the embodiment of the present utility model. Figure 6 Sectional view at point A in the middle;

[0038] Figure 8 This is provided by the embodiment of the present utility model. Figure 6 Sectional view at point B;

[0039] Figure 9 This is provided by the embodiment of the present utility model. Figure 6 Sectional view at point C;

[0040] Figure 10 This is provided by the embodiment of the present utility model. Figure 6 Sectional view at point D.

[0041] Reference numerals: 1. Tabletop frame assembly; 11. Tabletop frame; 111. Four-sided frame; 112. Cross frame; 113. Weight reduction hole; 114. Mounting hole; 115. Metal buckle; 116. Positioning post; 117. Linkage groove; 12. Four-bar linkage; 121. Upper link; 122. Lower link; 13. Tabletop mounting bracket; 14. Damper; 15. Pin; 16. Bushing; 17. C-clamp; 18. Step rivet; 19. Coil spring; 2. Lower cover plate covering assembly; 21. Claw; 22. Positioning rib; 23. Mounting groove; 24. Honeycomb support rib; 3. Upper cover plate covering assembly; 4. Unlock button; 5. Decorative panel. Detailed Implementation

[0042] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", 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 utility model 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 utility model.

[0043] like Figure 2 As shown, a lightweight platform-type seat table includes a table frame assembly 1, a lower cover plate covering assembly 2, an upper cover plate covering assembly 3, an unlock button 4, and a decorative panel 5. The table frame assembly 1 includes a table frame 11, a four-bar linkage structure 12, and a table mounting bracket 13. The table frame 11 is integrally formed by die casting and is rotatably connected to the front ends of the upper link 121 and the lower link 122 in the four-bar linkage structure 12. The rear ends of the upper link 121 and the lower link 122 are rotatably connected to the table mounting bracket 13. The four-bar linkage 12 can drive the table frame 11 to unfold or fold relative to the seat. The table frame assembly 11 can be connected to the table mounting bracket at the rear of the seat via the table mounting bracket 13. The lower side of the table frame 11 is connected to the lower cover plate covering assembly 2 by snap-fit, and the upper side is screwed to the upper cover plate covering assembly 3. The side of the upper cover plate covering assembly 3 opposite to the table frame 11 is connected to an unlocking button 4 and a decorative plate 5 by screws. The unlocking button 4 is used to fix the seat table to the seat back. The decorative plate 5 is screwed to the upper cover plate covering assembly 3 and is located in the connecting groove 117 of the table frame 11.

[0044] In this embodiment, to achieve lightweighting and platformization of the tabletop frame assembly 11, the tabletop frame 11 is integrally die-cast from aluminum alloy or magnesium alloy. (See [link]). Figures 2-4 The table frame 11 includes four side frames 111 and a cross frame 112 in the middle. The remaining non-load-bearing parts are four weight-reducing holes 113 to further reduce the weight of the table and chair table 11. In order to connect the table frame 11 with the lower cover plate covering assembly 2 and the upper cover plate covering assembly 3, this embodiment has reserved grooves and mounting holes 114 on the four side frames 111 and the cross frame 112. The reserved grooves are provided with metal buckles 115. The table frame assembly 1 is snapped to the lower cover plate covering assembly 2 through the metal buckles 115. Screws pass through the mounting holes 114 to screw the table frame assembly 1 to the upper cover plate covering assembly 3. The four side frames 111 also have upward protruding positioning posts 116. The two sides of the posts opposite to the seat end have connecting rod grooves 117. After the connecting rod grooves 117 are assembled with the decorative panel 5, the four-bar structure 12 is installed in the decorative panel 5.

[0045] I will now describe the improved tabletop frame 11 from four aspects.

[0046] 1. Structurally, the table frame in this application is integrally die-cast from the four-sided frame and the cross frame. Metal buckles and mounting holes are provided on the four-sided frame and the cross frame, and weight-reducing holes are provided in the non-stressed areas. Therefore, while supporting the upper cover plate covering assembly 3 and the lower cover plate covering assembly 2, the rigidity is improved, and deformation is avoided when pressing the seat table. In contrast, the traditional support frame uses 6 steel stamping parts and welding, which makes the structure more complex and heavier.

[0047] 2. In terms of process and assembly, this application uses aluminum alloy or magnesium alloy material for one-piece die casting. Compared with the traditional support frame which uses a combination of steel stamping and welding, it has better precision, shorter dimensional chain, avoids the cumulative error of multiple parts assembly, and has better stability. At the same time, the table frame 11 of this application is made of one-piece die casting, which can be assembled. Compared with the traditional support frame, it reduces the stamping, sorting, laser welding, electrophoresis and other processes, thus simplifying the process, reducing assembly time, assembly line stations and required equipment, and tooling cost is less than one-tenth of the original.

[0048] 3. Regarding the materials, the aluminum alloy used for the table frame in this application has a density of 2.8 g / cm³. 3 The traditional frame uses steel with a density of 7.8 g / cm³. 3 Therefore, the tabletop weight is about half of the original, further reducing the weight of the chair and tabletop. For example, it can be made of die-cast magnesium alloy, which has a density of 1.8 g / cm³. 3 This will further reduce the weight of tables, chairs, and tabletops.

[0049] 4. Regarding the connection between the table frame 11 and the upper cover assembly 3 and the lower cover assembly 2, in order to solve the problem of abnormal noise caused by external force on traditional chair tabletops, it was attempted to replace the upper and lower covers with other plastic materials. However, while the abnormal noise problem could be solved by changing the materials, other performance would also decrease. Therefore, this application modified the structure of the table frame 11, the upper cover, and the lower cover. The table frame 11 was changed to a combination of four-sided frame 111 and cross frame 112. The table frame 11 is connected to the upper cover assembly 3 by screws and is engaged with the claw 21 on the lower cover assembly 2 by metal buckles 115. Therefore, there is no direct contact between the upper cover assembly 3 and the lower cover assembly 2. Without changing the materials, the problem of abnormal noise caused by external force on the table and chair tabletops was solved.

[0050] As a further optimization, such as Figure 4As shown, a damper 14 is provided at the connection between the table frame 11 and the upper connecting rod 121. The damper 14 can realize the uniform release of opening and closing torque, prevent the seat and table from falling down quickly, and improve the user's experience.

[0051] For further optimization, see Figure 4 and Figure 9 The connecting rod connecting groove 117 is connected to the two side arms of the lower connecting rod 122 by pins 15. The pins 15 pass through the side wall of one side of the connecting rod connecting groove 117, the side wall of one side of the decorative plate 5, the bushing 16, the side wall of the other side of the decorative plate 5 and the side wall of the connecting rod connecting groove 117 in sequence, and are then fixed by C-clamps 17. The lower connecting rod 122 is rotatably connected to the pins 15 by the bushing 16. The bushing 16 is axially limited by the bosses protruding inward on both sides of the decorative plate 5. Compared with the traditional cantilever support method, this application upgrades to support by both sides, thus improving stability and enhancing reliability.

[0052] For further optimization, see Figure 3 and Figure 4 The upper connecting rod 121 and the lower connecting rod 122 are rotatably connected to the tabletop mounting bracket 13 via stepped rivets 18. A coil spring 19 is fitted onto the stepped rivet 18 connecting the upper connecting rod 121 and the tabletop mounting bracket 13. One end of the coil spring 19 is engaged in the groove of the tabletop mounting bracket 13, and the other end is engaged in the groove of the upper connecting rod 121. Therefore, the coil spring 19 can store potential energy by twisting when the seat frame is closed, and continuously output a rebound force to the upper connecting rod 121 when it is opened. As a result, the seat tabletop unfolds more smoothly and the cost is relatively lower. In order to increase the shielding of the coil spring 19 and the tabletop mounting bracket 13 by the cover plate, in this embodiment, one end of the upper connecting rod 121 relative to the tabletop mounting bracket 13 is bent upward, and the bending angle is on the same plane as the connected tabletop mounting bracket 13, so as to prevent the upper connecting rod from interfering with the cover plate and thus preventing the cover plate from being installed.

[0053] See Figure 2 , Figure 5 and Figure 7 To prevent the upper cover plate assembly 3 from directly contacting the lower cover plate assembly 2, this application provides a claw 21 that engages with the table frame 11 and a positioning rib 22 on the side of the lower cover plate relative to the table frame assembly 1. Specifically, the lower cover plate assembly 2 engages with the metal buckle 115 on the table frame 11 via the claw 21, and the positioning rib 22 cooperates with the positioning post 116 for positioning. The lower cover plate has an installation groove 23 at the position relative to the unlock button 4 and an avoidance opening at the position relative to the four-bar linkage 12. The remaining middle part is covered with multiple honeycomb-shaped support ribs 24 to improve the deformation resistance of the lower cover plate assembly 2.

[0054] As a further optimization, the upper cover plate of the upper cover plate assembly 3 has a mounting post on the side of the upper cover plate relative to the table frame assembly 1 that is screwed onto the table frame 11, and a clearance opening is provided at the position relative to the unlock button 4. Screws pass through the table frame 11, the unlock button 4, and the upper cover plate in sequence to screw the unlock button 4 into the clearance opening (see...). Figure 7 The upper cover assembly 3 has a decorative panel mounting port at the position relative to the decorative panel 5. Screws pass through the table frame 11, the decorative panel 5, and the upper cover in sequence to screw the decorative panel 5 into the decorative panel mounting port. At the position of the unlock button 4, two screws can be used to integrate and fix the unlock button 4, the table frame 11, and the upper cover. At the position of the decorative panel 5, four screws can be used to integrate and fix the decorative panel 5, the table frame 11, and the upper cover on each side. That is, the same screw can fix three parts. Therefore, while the unlock button 4, the decorative panel 5, and the table frame 11 can be screwed together, the number of screw installations between the upper cover assembly 3 and the table frame 11 is reduced. Compared with the traditional vibration friction welding connection method, this embodiment is easy to disassemble and can be replaced individually according to the different needs of customers for the shape of the external parts. At the same time, it also reduces the vibration friction welding process and the vibration friction welding station on the final assembly line, further simplifying the process and reducing manufacturing and assembly costs. The upper cover plate also has multiple honeycomb-shaped support ribs on one side relative to the table frame 11. These honeycomb-shaped support ribs can improve the deformation resistance of the upper cover plate covering assembly 3.

[0055] This application is from a platform perspective.

[0056] 1. The table frame 11 of this application is integrally die-cast from aluminum alloy or magnesium alloy, integrating the original six scattered stamping parts into a single casting, realizing a high degree of structural integration, so that the table frame 11 can serve as the core of the table frame assembly 1 platform.

[0057] 2. This application standardizes components such as the table frame 11, the four-bar structure 12, the table mounting bracket 13, the coil spring 19, the metal buckle 115, and the damper 14 to form the table frame assembly 1. When the table frame assembly 1 is adjusted in size to adapt to different vehicle models, only the size of the table frame 11 needs to be adjusted, and the other components do not need to be redeveloped.

[0058] 3. This application divides the complex seat table into five parts: decorative panel 5, upper cover panel assembly 3, table frame assembly 1, unlocking button 4, and lower cover panel assembly 5. The five parts are fixed and installed by screws and snap-fit, thus forming a "building block" assembly mode. When the shape of the seat table is changed according to different vehicle models, the same set of table frame assembly 1 can be universally adapted. Only the corresponding exterior parts need to be changed according to the customer's requirements.

[0059] From a lightweight perspective

[0060] The table frame 11 in this application has a simpler structure. Except for the load-bearing area, which needs to be connected to the upper cover plate assembly 3 and the lower cover plate assembly 2, it has four side frames 111 and a cross frame 112. The other non-load-bearing areas are weight-reducing holes 113, thus reducing the weight of the table frame 11 and simplifying its structure. Secondly, the table frame 11 in this application is made of aluminum alloy or magnesium alloy, which has a lower density than steel, thus further reducing the weight of the table frame 11.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the present utility model.

Claims

1. A lightweight, platform-style chair / tabletop, characterized in that, The table includes a table frame assembly (1), a lower cover plate covering assembly (2), an upper cover plate covering assembly (3), an unlock button (4), and a decorative panel (5). The table frame (11) in the table frame assembly (1) is integrally formed by die casting. One side of the table frame (11) is connected to the lower cover plate covering assembly (2) by snap-fit, and the other side is screwed to the upper cover plate covering assembly (3). The upper cover plate covering assembly (3) is connected to the unlock button (4) and the decorative panel (5) on the side opposite to the table frame (11) by screws.

2. The lightweight platform-style chair / tabletop according to claim 1, characterized in that, The table frame (11) includes a four-sided frame (111) and a cross frame (112). The four-sided frame (111) and the cross frame (112) are connected to form a plurality of weight-reducing holes (113). The four-sided frame (111) and the cross frame (112) have reserved slots and mounting holes (114). The reserved slots are provided with metal buckles (115). The table frame assembly (1) is snapped to the lower cover plate covering assembly (2) through the metal buckles (115). Screws pass through the mounting holes (114) to screw the table frame assembly (1) to the upper cover plate covering assembly (3). The four-sided frame (111) also has upward protruding positioning posts (116), and the two sides of the post opposite to the seat have connecting rod grooves (117).

3. The lightweight platform-style chair / tabletop according to claim 1, characterized in that, The table frame assembly (1) includes a table frame (11), a four-bar linkage (12), and a table mounting bracket (13). The table frame (11) is rotatably connected to one end of the upper link (121) and the lower link (122) in the four-bar linkage (12), and the other end of the upper link (121) and the lower link (122) is rotatably connected to the table mounting bracket (13).

4. The lightweight platform-style chair / tabletop according to claim 3, characterized in that, A damper (14) is provided at the connection between the table frame (11) and the upper connecting rod (121).

5. A lightweight platform-style chair / tabletop according to claim 3, characterized in that, The table frame (11) is connected to the two side arms of the lower connecting rod (122) with pins (15). The pins (15) are provided with bushings (16). The lower connecting rod (122) is rotatably connected to the pins (15) through the bushings (16). The pins (15) are fixed to the table frame (11) by C-clamps (17).

6. A lightweight platform-style chair / tabletop according to claim 3, characterized in that, The upper connecting rod (121) and the lower connecting rod (122) are rotatably connected to the tabletop mounting bracket (13) by a stepped rivet (18). A coil spring (19) is fitted on the stepped rivet (18) that connects the upper connecting rod (121) to the tabletop mounting bracket (13). One end of the coil spring (19) is stuck in the groove of the tabletop mounting bracket (13), and the other end is stuck in the groove of the upper connecting rod (121).

7. A lightweight platform-style chair / tabletop according to claim 6, characterized in that, The upper connecting rod (121) needs to be bent upward at one end relative to the tabletop mounting bracket (13), and the bending angle is on the same plane as the connected tabletop mounting bracket (13).

8. A lightweight platform-style chair / tabletop according to claim 1, characterized in that, The table frame (11) is made of aluminum alloy or magnesium alloy.

9. A lightweight platform-style chair / tabletop according to claim 1, characterized in that, The lower cover plate of the lower cover plate covering assembly (2) has a claw (21) that engages with the table frame (11) and a positioning rib (22) that positions it relative to the table frame (11). It has a mounting groove (23) relative to the unlock button (4) and a clearance opening relative to the four-bar linkage (12). The lower cover plate also has multiple honeycomb-shaped support ribs (24) on the side of the lower cover plate relative to the table frame (11).

10. A lightweight platform-style chair / tabletop according to claim 1, characterized in that, The upper cover plate of the upper cover plate assembly (3) has a mounting post on the side of the upper cover plate relative to the table frame assembly (1) that is screwed to the table frame (11). It has a clearance opening at the position relative to the unlock button (4). Screws pass through the table frame (11), the unlock button (4) and the upper cover plate in sequence to screw the unlock button (4) into the clearance opening. The upper cover plate assembly (3) has a decorative panel mounting opening at the position relative to the decorative panel (5). Screws pass through the table frame (11), the decorative panel (5) and the upper cover plate in sequence to screw the decorative panel (5) into the decorative panel mounting opening. The upper cover plate has multiple honeycomb-shaped support ribs on the side of the upper cover plate relative to the table frame (11).

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