A table board structure of an automobile seat and an automobile seat

Abstract

The application relates to the technical field of chairs, and discloses a table plate structure of an automobile seat and the automobile seat. The table plate structure of the automobile seat comprises support arms respectively and detachably and rotatably connected with two sides of a seat chassis, positioning pins respectively arranged on the two sides of the seat chassis and used for contacting or separating from the corresponding support arms, a table plate body rotatably arranged between the two support arms, and a knob arranged on the back of the seat and used for fixing the table plate body. The table plate structure is externally provided with two support arms rotatably connected with the seat chassis, the table plate body rotatably connected with the upper end portions of the two support arms, the knob used for fixing the table plate body, and the positioning pins used for limiting the rotation range of the support arms, so that the support arms are detachably arranged on the seat chassis, the table plate structure has high universality, the table plate structure can be installed or disassembled according to the requirements of customers, and a large amount of manpower and material resources is not needed.

Description

Technical Field

[0001] This invention relates to the technical field of chairs, and particularly to a table structure for an automobile seat and an automobile seat. Background Technology

[0002] Passenger car seats, high-speed rail seats, light rail seats, and other transport vehicles are generally equipped with tables for dining or placing personal items. However, these tables are usually installed by the chair manufacturers when the seats are manufactured. Then, the assembled seats with tables are installed on the transport vehicle. For transport vehicles that originally did not have tables, modifying the existing seats to include tables would require removing all the old seats and replacing them with new ones with tables. This modification is very costly, not feasible, and results in significant waste.

[0003] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a table structure for a car seat and a car seat, which is designed to enable the table structure to be directly installed on an existing seat.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A table structure for an automobile seat includes support arms that are detachably and rotatably connected to both sides of the seat base frame, positioning pins that are respectively disposed on both sides of the seat base frame and used to contact or separate from the corresponding support arms, a table body that is rotatably disposed between the two support arms, and a knob disposed on the back of the seat and used to fix the table body.

[0007] The table structure of the car seat includes a positioning component that penetrates both side walls of the seat base frame. The positioning component has a threaded hole that penetrates its center. A screw is threaded into the threaded hole. The connecting ends of the two support arms are provided with through holes through which the rod body of the screw passes. The two support arms are rotatably mounted on the positioning component between the seat base frame and the screw.

[0008] The table structure of the car seat, wherein the positioning member includes a locking part connected to the inner side wall of the seat base and a limiting part connected to the outer side wall of the seat base, the locking part and the limiting part being an integral structure.

[0009] The table structure of the car seat includes a locking head on the side wall of the support arm facing the seat base. The inner diameter of the locking head is larger than the outer diameter of the limiting part. The locking head is located at the end of the limiting part. The through hole is located at the center of the locking head. The connecting end of the support arm is also provided with a receiving groove for accommodating the screw head. The receiving groove and the locking head are interconnected through the through hole.

[0010] The table structure of the car seat, wherein the lower end of the support arm is provided with a limiting protrusion, and the positioning pin is located in front of the limiting protrusion.

[0011] The table structure of the car seat includes an upper cover plate and a lower cover plate that covers the upper cover plate, forming a cavity between the upper cover plate and the lower cover plate. Two slots communicating with the outside are provided within the cavity. Each of the two slots has a first limiting boss and a second limiting boss opposite to the first limiting boss. The ends of both support arms are provided with two opposing pins. Each pin has a first positioning groove and a second positioning groove opposite to the first positioning groove. The two pins are respectively inserted into their corresponding slots, and both pins abut against their corresponding first and second limiting bosses.

[0012] The table structure of the car seat, wherein the cross-sections of the first limiting boss and the second limiting boss are both triangular, the cross-sections of the first positioning groove and the second positioning groove are triangular, and the included angle of the triangles of the first limiting boss and the second limiting boss is smaller than the included angle of the triangles of the first positioning groove and the second positioning groove.

[0013] The table structure of the car seat includes a cup holder and a tablet slot on the upper cover.

[0014] The table structure of the car seat mentioned above, wherein the lower cover plate is provided with an arc-shaped groove, and the knob is disposed in the arc-shaped groove.

[0015] A car seat includes a seat base, a seat mounted on the seat base, and a table structure for the car seat.

[0016] Beneficial effects:

[0017] This invention provides a table structure for a car seat and a car seat. The table structure for the car seat consists of two externally mounted support arms that are rotatably connected to the original seat base frame, a table body rotatably connected to the upper ends of the two support arms, a knob for fixing the table body, and a positioning pin for limiting the rotation range of the support arms. This allows the support arms to be detachably mounted on the seat base frame, making it highly versatile. The table structure can be added or removed according to customer needs without consuming a lot of manpower and resources. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the table body in the retracted state of a car seat table structure provided by the present invention.

[0019] Figure 2 for Figure 1 The right view in the image.

[0020] Figure 3 for Figure 1 A partial diagram of the explosion.

[0021] Figure 4 This is a partial structural diagram of the seat base and support arm.

[0022] Figure 5 for Figure 4 Exploded view.

[0023] Figure 6 This is a partial sectional view of the seat base and support arm on one side.

[0024] Figure 7 This is a cross-sectional view of the tabletop in its retracted position.

[0025] Figure 8 This is a magnified view of the tabletop when it is in its retracted position.

[0026] Figure 9 This is a schematic diagram of the table panel structure of the car seat when the table panel body is in the open state.

[0027] Figure 10 for Figure 9 A partial schematic diagram of the explosion.

[0028] Figure 11 This is a sectional view of the tabletop when it is in the open position.

[0029] Figure 12 This is a magnified view of the tabletop when it is in the open position.

[0030] Figure 13 This is a partial structural diagram of the table structure of the car seat.

[0031] Explanation of main component symbols: 1-Seat base frame, 11-Positioning pin, 12-Positioning component, 121-Locking part, 122-Limiting part, 2-Support arm, 21-Clip head, 211-Through hole, 212-Accommodation groove, 22-Limiting protrusion, 23-Pin, 24-First positioning groove, 25-Second positioning groove, 3-Table body, 31-Upper cover plate, 311-Water cup slot, 312-Tablet slot, 32-Lower cover plate, 321-Arc groove, 33-Slot, 34-First limiting boss, 35-Second limiting boss, 4-Knob, 5-Screw. Detailed Implementation

[0032] This invention provides a table structure for a car seat and a car seat itself. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the scope of protection of the invention.

[0033] Please see Figure 1 , Figure 2 and Figure 9 The present invention provides a table structure for an automobile seat, including support arms 2 that are detachably and rotatably connected to both sides of the seat base frame 1, positioning pins 11 that are respectively disposed on both sides of the seat base frame 1 and used to contact or separate from the corresponding support arms 2, a table body 3 that is rotatably disposed between the two support arms 2, and a knob 4 disposed on the back of the seat and used to fix the table body 3.

[0034] During assembly, first assemble the tabletop body 3 and the upper ends of the two support arms 2, allowing the tabletop body 3 to rotate relative to the two support arms 2. Then, install the assembled tabletop structure on both sides of the seat base 1. Please refer to [link / reference]. Figure 2 and Figure 9 In use, turn knob 4 to separate knob 4 from table body 3. Due to gravity, table body 3 rotates around the upper end of support arm 2, opening table body 3 for placing items or eating. Driven by table body 3, the two support arms 2 rotate away from the seat (rear) until the lower end of support arm 2 abuts against positioning pin 11, thus fixing the lower end of support arm 2. When the table structure is not needed, rotate table body 3 towards the seat (forward) until the upper surface of table body 3 abuts against the back of the seat. Similarly, the upper ends of the two support arms 2 rotate forward under the action of table body 3, and the lower ends of the two support arms 2 separate from positioning pin 11. Then, use knob 4 to fix table body 3 to the seat, thus storing table body 3.

[0035] The above structure improves upon the original seat base 1 by attaching two externally mounted support arms 2 rotatably connected to the base 1, a table body 3 rotatably connected to the upper ends of the two support arms 2, a knob 4 for fixing the table body 3, and a positioning pin 11 for limiting the rotation range of the support arms 2. This allows the table structure to be externally mounted on both sides of the seat, compared to existing tables fixed to the back of the seat. Customers can choose to purchase a seat without a table or one with a table, depending on their needs. For customers who purchase a seat without a table, if they require a table later, they can simply purchase the aforementioned table structure and install it on the existing seat. For customers who purchase a seat with a table, if they want to disassemble the table structure or replace it with a new one, they can simply detach the two support arms 2 from the seat base 1. This table structure is highly versatile, allowing for easy disassembly and assembly without requiring significant manpower or resources to replace the existing seat.

[0036] Please see Figures 4-6 Furthermore, the seat base 1 is provided with positioning members 12 penetrating its two side walls. Each positioning member 12 has a threaded hole penetrating its center, and a screw 5 is threaded into the threaded hole. The connecting ends (i.e., lower ends) of the two support arms 2 are each provided with through holes 211 through which the rod body of the screw 5 passes. The two support arms 2 are rotatably mounted on the positioning members 12 between the seat base 1 and the screw 5. During assembly, the two support arms 2 are respectively fitted onto their corresponding positioning members 12, and then the screw 5 is screwed into the through holes 211 on the support arm 2 and the threaded holes on the positioning members 12, locking the end of the positioning member 12 and limiting the support arm 2 between the seat base 1 and the head of the screw 5. The support arm 2 rotates around the positioning member 12 within the aforementioned gap. This structure is simple and easy and quick to assemble and disassemble. During the production of the seat base 1, the positioning members 12 are directly welded to the seat base 1, making it convenient for customers to add or replace table structures on it in the future. The manufacturer disassembles the above-mentioned tabletop structure into individual parts, attaches screw 5, packages it, and then sells it to the buyer. The buyer can quickly complete the installation of the tabletop structure according to the product instructions.

[0037] Please see Figures 4-6Furthermore, the positioning member 12 includes a locking part 121 connected to the inner wall of the seat base 1 and a limiting part 122 connected to the outer wall of the seat base 1. The locking part 121 and the limiting part 122 are an integral structure. During production, mounting holes are provided at corresponding positions on the seat base 1, and then the limiting part 122 is inserted into the mounting holes until the outer wall of the locking part 121 abuts against the inner wall of the seat base 1. Then, the locking part 121 is fixed to the seat base 1 using a welding torch. The locking part 121 and the limiting part 122 function in this invention as a common nut, limiting the travel of the support arm 2 through the nut and the screw 5. The integral locking part 121 and the limiting part 122 are used to improve the structural rigidity of the positioning member 12.

[0038] Please see Figures 4-6 Furthermore, a locking head 21 is provided on the side wall of the support arm 2 facing the seat base 1. The inner diameter of the locking head 21 is larger than the outer diameter of the limiting part 122. The locking head 21 is located at the end of the limiting part 122, and a through hole 211 is located at the center of the locking head 21. A receiving groove 212 for accommodating the head of the screw 5 is also provided on the connecting end of the support arm 2. The receiving groove 212 and the locking head 21 are interconnected through the through hole 211. During assembly, the locking head 21 is inserted into the end of the limiting part 122. Since the inner diameter of the locking head 21 is larger than the outer diameter of the limiting part 122, the rotation of the support arm 2 is not restricted. Then, the rod body of the screw 5 passes through the through hole 211 on the chuck 21 from the outside to the inside, and is threadedly connected to the threaded hole on the limiting part 122 and the locking part 121, so that the head of the screw 5 is a certain distance from the outer wall of the limiting part 122, so that the support arm 2 can rotate around the limiting part 122 within the above-mentioned distance.

[0039] Please see Figures 4-6 Furthermore, a limiting protrusion 22 is provided at the lower end of the support arm 2, and the positioning pin 11 is located in front of the limiting protrusion 22. (See also...) Figure 2 and Figure 9 When the upper end of the support arm 2 rotates backward (i.e., when the lower end of the support arm 2 rotates forward), the limiting protrusion 22 on the support arm 2 abuts against the side wall of the positioning pin 11, and the positioning pin 11 restricts the lower end of the support arm 2 from continuing to rotate forward, so that the support arm 2 moves from the sides of the seat to the back of the seat; when the upper end of the support arm 2 rotates forward (i.e., when the lower end of the support arm 2 rotates backward), the limiting protrusion 22 on the support arm 2 separates from the positioning pin 11 until the table body 3 connected to the upper end of the support arm 2 is fixed to the back of the seat by the knob 4, so that the two support arms 2 are returned to the sides of the seat.

[0040] Please see Figure 3 and Figure 10Furthermore, the tabletop body 3 includes an upper cover plate 31 and a lower cover plate 32 that covers the upper cover plate 31, with a cavity formed between the upper cover plate 31 and the lower cover plate 32; please refer to Figure 8 and Figure 12 The cavity contains two slots 33 communicating with the outside. Each slot 33 contains a first limiting boss 34 and a second limiting boss 35 opposite to the first limiting boss 34. Each end of the two support arms 2 has two opposing pins 23, each pin 23 having a first positioning groove 24 and a second positioning groove 25 opposite to the first positioning groove 24. The two pins 23 are inserted into their respective slots 33, and both pins 23 abut against their respective first and second limiting bosses 34 and 35. By using a hollow tabletop body 3, the weight of the tabletop body 3 is reduced, thereby reducing the load on the support arms 2 and increasing the service life of the car seat tabletop structure. During assembly, first align the pin 23 on one of the support arms 2 with the slot 33 on one side of the table body 3, so that the first positioning groove 24 and the second positioning groove 25 on the pin 23 are misaligned with the first limiting boss 34 and the second limiting boss 35 in the slot 33, and then insert the pin 23 into the slot 33. Then, use the same method to insert the other support arm 2 into the slot 33 on the other side to complete the assembly of the two support arms 2 with the table body 3.

[0041] Please see Figures 7-8 and Figures 11-12 Furthermore, the cross-sections of the first limiting boss 34 and the second limiting boss 35 are both triangular, as are the cross-sections of the first positioning groove 24 and the second positioning groove 25. The included angle between the triangles of the first limiting boss 34 and the second limiting boss 35 is smaller than the included angle between the triangles of the first positioning groove 24 and the second positioning groove 25. Specifically, the included angle between the triangles of the first limiting boss 34 and the second limiting boss 35 is 115°, and the included angle between the triangles of the first positioning groove 24 and the second positioning groove 25 is 167°. That is, the inclination of the inclined surfaces of the first limiting boss 34 and the second limiting boss 35 is smaller than the inclination of the inclined surfaces of the first positioning groove 24 and the second positioning groove 25, so that after the pin 23 is inserted into the slot 33, there is still space in the slot 33 for the pin 23 to rotate.

[0042] Please refer to the following for actual use. Figures 7-8When the tabletop body 3 rotates backward (i.e., when the tabletop body 3 is gradually opened), the lower end face of the first limiting boss 34, which was initially in contact with the lower side of the first positioning groove 24 (and the upper end face of the second limiting boss 35, which was initially in contact with the upper side of the second positioning groove 25), gradually changes to the upper end face of the first limiting boss 34 being in contact with the upper side of the first positioning groove 24 (and the lower end face of the second limiting boss 35 being in contact with the lower side of the second positioning groove 25). At this time, the tabletop body 3 is horizontal to the ground (i.e., the tabletop body 3 is fully opened). Please refer to [link to relevant documentation]. Figures 11-12 When the table body 3 rotates forward (i.e., when the table body 3 is gradually retracted), the upper end face of the first limiting boss 34 gradually changes from abutting against the upper side of the first positioning groove 24 (the lower end face of the second limiting boss 35 abutting against the lower side of the second positioning groove 25) to the lower end face of the first limiting boss 34 abutting against the lower side of the first positioning groove 24 (the upper end face of the second limiting boss 35 abutting against the upper side of the second positioning groove 25). After the table body 3 is rotated into place, the support arm 2 is manually retracted into place through the table body 3, that is, the upper surface of the table body 3 abuts against the back of the seat, and the support arm 2 is retracted to both sides of the seat.

[0043] Please see Figure 11 Furthermore, the upper cover plate 31 is provided with a water cup slot 311 and a tablet computer slot 312. After the table body 3 is opened, a water cup can be placed in the water cup slot 311, and a tablet computer can be placed in the tablet computer slot 312 for entertainment if needed.

[0044] Please see Figure 13 Furthermore, the lower cover plate 32 is provided with an arc-shaped groove 321, and the knob 4 is disposed in the arc-shaped groove 321. Rotating the knob 4 will release the constraint force on the table body 3 by turning the knob 4 out of the arc-shaped groove 321; turning the knob 4 into the arc-shaped groove 321 will clamp the table body 3, thereby preventing the table body 3 from rotating backward.

[0045] Please see Figure 1 , Figure 2 and Figure 9 Furthermore, the present invention also provides a car seat, including a seat base 1, a seat (not shown in the figure) disposed on the seat base 1, and a table structure for the car seat. By providing a table structure external to the seat on the seat base 1, the car seat enables car seats that were not originally equipped with a table to also have the capability to be equipped with a table.

[0046] In summary, the car seat table structure provided by this invention, by externally attaching two support arms 2 rotatably connected to the original seat base frame 1, a table body 3 rotatably connected to the upper ends of the two support arms 2, a knob 4 for fixing the table body 3, and a positioning pin 11 for limiting the rotation range of the support arms 2, allows the support arms 2 to be detachably mounted on the seat base frame 1. This design offers high versatility, allowing the table structure to be added or removed according to customer needs without requiring significant manpower or resources. A positioning element 12, threaded holes, and a screw 5 are provided to limit the support arms 2 to the positioning element 12. A locking head 21 and a receiving groove 212 are provided to allow the support arms 2 to rotate around the limiting part 122 within a certain interval. When the limiting protrusion 22 abuts against the positioning pin 11, it restricts the support arms 2 from continuing to rotate backward. A slot 33 and a pin 23 are provided to make the two support arms 2 and the table body 3 detachable. The shapes of the first limiting boss 34, the second limiting boss 35, the first positioning groove 24, and the second positioning groove 25 are defined to allow the pin 23 to rotate within the slot 33. The first limiting boss 34 and the second limiting boss 35 in the slot 33 can also limit the rotation angle of the pin 23. A water cup slot 311 is provided for placing a water cup; a tablet slot 312 is provided for placing a tablet computer. An arc-shaped groove 321 is provided to cooperate with the knob 4 to fix the table body 3.

[0047] 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," "outer," "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.

[0048] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A table structure for a car seat, characterized in that, The system includes support arms detachably and rotatably connected to both sides of the seat base; positioning pins respectively located on both sides of the seat base for contacting or separating from the corresponding support arms; a table body rotatably disposed between the two support arms; and a knob located on the back of the seat for fixing the table body. The seat base has positioning members penetrating its two side walls, each positioning member having a threaded hole penetrating its center. A screw is threaded into the threaded hole. Each of the two support arms has a through hole at its connecting end for the screw's shank to pass through. The two support arms are rotatably disposed on the positioning members between the seat base and the screw. The positioning members include a locking part connected to the inner side wall of the seat base and a limiting part connected to the outer side wall of the seat base, the locking part and the limiting part being an integral structure. Each support arm has a locking head on its side wall facing the seat base, the inner diameter of the locking head being larger than the outer diameter of the limiting part. The locking head is located at the end of the limiting part, and the through hole is located at the center of the locking head. The connecting end of the support arm is also provided with a receiving groove for accommodating the screw head, and the receiving groove and the clamp are interconnected through the through hole; the table body includes an upper cover plate and a lower cover plate that covers the upper cover plate, and a cavity is formed between the upper cover plate and the lower cover plate; two slots communicating with the outside are provided in the cavity, and a first limiting boss and a second limiting boss opposite to the first limiting boss are respectively provided in the two slots; two pins opposite to each other are provided at the ends of the two support arms, and a first positioning groove and a second positioning groove opposite to the first positioning groove are provided on the two pins; the two pins are respectively inserted into the corresponding slots, and the two pins abut against the corresponding first limiting boss and second limiting boss; the cross sections of the first limiting boss and the second limiting boss are both triangular, the cross sections of the first positioning groove and the second positioning groove are triangular, and the included angle of the triangles of the first limiting boss and the second limiting boss is smaller than the included angle of the triangles of the first positioning groove and the second positioning groove.

2. The table structure of the car seat according to claim 1, characterized in that, The lower end of the support arm is provided with a limiting protrusion, and the positioning pin is located in front of the limiting protrusion.

3. The table structure of the car seat according to claim 1, characterized in that, The top cover is equipped with a water cup slot and a tablet computer slot.

4. The table structure of the car seat according to claim 1, characterized in that, The lower cover plate is provided with an arc-shaped groove, and the knob is disposed in the arc-shaped groove.

5. A car seat, comprising a seat base frame and a seat disposed on the seat base frame, characterized in that, It also includes the table structure of the automobile seat as described in any one of claims 1-4.

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