Seat backrest elbow structure, seat assembly and vehicle

Abstract

The utility model relates to the technical field of seat backrests, and discloses a seat backrest elbow pipe structure, a seat assembly and a vehicle, the seat backrest elbow pipe structure comprises a backrest elbow pipe and a snake-shaped spring arranged on the backrest elbow pipe, a hanging lug is fixedly arranged on the backrest elbow pipe corresponding to the joint of the snake-shaped spring, and the hanging lug is fixedly connected with the snake-shaped spring. The end of the snake-shaped spring is hung on the hanging lug, and a noise reduction assembly is arranged at the joint of the hanging lug and the snake-shaped spring. According to the seat, the noise reduction assembly is arranged at the joint of the hanging lug and the snake-shaped spring which generate the abnormal sound, so that the abnormal sound is weakened from the source, and the comfort experience of the seat in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat backs, and in particular to a seat back bent pipe structure, a seat assembly and a vehicle. Background Art

[0002] As consumers' demands for car seat comfort increase, more and more car seats on the market are adopting sports-style design, with the headrest and backrest made into one headrest, and the backrest supported by serpentine springs. This not only saves costs, but also enhances the sporty style of the design. The serpentine spring support also greatly improves the elasticity and support of the seat backrest, meeting the passengers' demand for seat comfort. At present, the integrated headrest seat back curved tube structure design on the market is complex. The serpentine spring is hung on both ends of the frame through sheet metal ears. The felt or rubber sleeve at the end of the serpentine spring is worn to a hole by the edge of the flat sheet metal ear, resulting in direct contact between the serpentine spring and the flat sheet metal ear structure. When users are riding, a "creaking" sound will be generated, causing user complaints and increasing the maintenance costs of automobile manufacturers.

[0003] The pipe frame type integrated headrest backrest is bent, with multiple spring brackets welded between the left and right pipe frames; the two ends of the backrest serpentine spring are directly connected to the corresponding spring brackets. The pipe frame is not rigid enough, and the left and right spring brackets have relative displacement when under pressure. The burrs on the edges of the spring brackets rub against the serpentine spring wire, causing the risk of abnormal noise. Summary of the invention

[0004] The utility model aims to provide a seat back bent tube structure, a seat assembly and a vehicle, so as to solve the problem in the prior art that when the serpentine spring is easily displaced relative to the hanging spring bracket, abnormal noise occurs at the connection of the serpentine spring.

[0005] In order to achieve the above purpose, the technical solution adopted in this application is as follows:

[0006] A seat back bent tube structure includes a back bent tube and a serpentine spring arranged on the back bent tube, a hanging ear is fixedly provided on the back bent tube corresponding to the connection with the serpentine spring, an end of the serpentine spring is hung on the hanging ear, and a noise reduction component is arranged at the connection between the hanging ear and the serpentine spring.

[0007] In the present application, a noise reduction component is provided at the connection between the ear and the serpentine spring that produces abnormal noise, so as to reduce the abnormal noise from the source and improve the comfort experience when using the seat.

[0008] Furthermore, the noise reduction component includes a rubber sleeve, and the rubber sleeve is sleeved on the end of the serpentine spring.

[0009] In the present application, a rubber sleeve is provided at the end of the serpentine spring to isolate the serpentine spring from the hanging ear, thereby preventing the serpentine spring from directly contacting the hanging ear and causing relative friction and abnormal noise.

[0010] Furthermore, the noise reduction component includes an isolation protrusion, the ear is composed of a welding surface and a bending surface, the welding surface is used to connect to the backrest bent tube, the bending surface is used for hanging the end of the serpentine spring, and the isolation protrusion is arranged on the side where the bending surface is connected to the serpentine spring.

[0011] In the present application, an isolation protrusion is provided on one side of the bending surface used to connect to the serpentine spring, and the contact area between the serpentine spring and the hanging ear is reduced to optimize the phenomenon of relative friction and abnormal noise generated when the serpentine spring directly contacts the hanging ear.

[0012] Furthermore, a headrest conduit is fixedly provided on the top of the backrest bent pipe, and a decorative rear support plate is provided at the connection between the headrest conduit and the backrest bent pipe.

[0013] In the present application, in order to improve the supporting strength of the connection between the backrest bend pipe and the headrest duct, a decorative rear support plate is provided at the connection between the headrest duct and the backrest bend pipe to support the connection and improve the supporting strength of the connection.

[0014] Furthermore, the rear support plate of the decorative component is configured as a polygon, and flanges are provided at the connection between the rear support plate of the decorative component and the backrest bent pipe.

[0015] In the present application, a flange is provided on the rear support plate of the decorative part to facilitate fixed connection of the rear support plate of the decorative part to the backrest bent tube, and providing multiple flanges can improve the connection strength of the rear support plate of the decorative part and effectively support the backrest bent tube.

[0016] Furthermore, a plurality of steel wires are arranged on the backrest bent pipe.

[0017] In the present application, in order to improve the supporting performance of the backrest bent pipe, a plurality of steel wires are arranged on the backrest bent pipe so as to support the foam at various locations of the seat during the subsequent installation process.

[0018] Furthermore, a backrest lower transverse tube is arranged on the backrest bent tube, a backrest bottom supporting wire is arranged at the bottom of the backrest lower transverse tube, an angle adjuster is arranged at the bottom end of the backrest bent tube, and a side plate is arranged at the backrest bent tube corresponding to the angle adjuster.

[0019] In the present application, a welded side panel structure is replaced by a tube frame and a steel wire structure, thereby reducing one side panel and an angle adjuster; a combination of a tube frame, a side panel and a steel wire is used to replace the original angle adjuster-connected side panel, thereby reducing the size of the side panel; and the manufacturing cost, mold and tooling cost are effectively saved, the weight of the frame is reduced, and the lightweight of the seat is achieved.

[0020] A seat assembly comprises a seat body and the seat back curved tube structure as described above, wherein the seat back curved tube structure is mounted on the seat body.

[0021] A vehicle comprises a vehicle body and the seat assembly as described above, wherein the seat assembly is mounted on the vehicle body.

[0022] Beneficial effects of the utility model:

[0023] 1. In this application, a noise reduction component is provided at the connection between the hanging ear and the serpentine spring that produces abnormal noise, so as to eliminate the abnormal noise from the root and improve the comfort experience when using the seat;

[0024] 2. In the present application, an isolation protrusion is provided on one side of the bending surface for connecting to the serpentine spring, and the contact area between the serpentine spring and the hanging ear is reduced to optimize the phenomenon that the serpentine spring is prone to relative friction and abnormal noise when it directly contacts the hanging ear;

[0025] 3. In this application, a rubber sleeve is provided at the end of the serpentine spring to isolate the serpentine spring from the hanging ear, so as to prevent the serpentine spring from directly contacting the hanging ear and causing relative friction and abnormal noise;

[0026] 4. In the present application, a welded side panel structure is replaced by a tube frame and a steel wire structure, thereby reducing one side panel and an angle adjuster. The original angle adjuster-connected side panel is replaced by a combination of a tube frame, a side panel and a steel wire, thereby reducing the size of the side panel. This effectively saves manufacturing costs, mold and tooling costs, reduces the weight of the frame, and realizes lightweight seating. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall bent pipe structure of the seat back Figure 1 ;

[0028] Figure 2 Schematic diagram of the overall bent pipe structure of the seat back Figure 2 ;

[0029] Figure 3 Schematic diagram of the connection structure between the car seat back bend and the serpentine spring Figure 1 ;

[0030] Figure 4 Schematic diagram of the connection structure between the car seat back bend and the serpentine spring Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the connection between the car seat back bend pipe and the headrest duct;

[0032] Figure 6 It is the rear support plate structure of the decorative part;

[0033] Figure 7 It is a schematic diagram of the structure of the seat back curved pipe angle adjuster.

[0034] in,

[0035] 1. Backrest elbow; 2. Hanging ear; 21. Welding surface; 22. Isolation protrusion; 23. Bending surface;

[0036] 3. Serpentine spring; 4. Rubber sleeve; 5. Steel wire on backrest; 6. Under the front supporting steel wire of decorative part; 7. Rear supporting plate of decorative part; 71. Support frame; 72. Flanging; 73. Flanging; 74. Flanging; 75. Flanging; 76. Flanging; 77. Flanging; 8. Upper front supporting steel wire of decorative part; 9. Headrest guide tube; 10. Lower horizontal tube of backrest; 11. Side supporting steel wire of backrest; 12. Side panel; 13. Recliner; 14. Bottom supporting steel wire of backrest. DETAILED DESCRIPTION

[0037] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0039] like Figure 1-7 The present application provides a seat back bent tube structure, including a back bent tube 1 and a serpentine spring 3 arranged on the back bent tube 1. A hook 2 is fixedly provided at the connection of the back bent tube 1 corresponding to the serpentine spring 3. It is worth noting that a hook 2 is provided on each side of the back bent tube 1 for hanging the serpentine spring 3. The two end portions of the serpentine spring 3 are hung on two hooks 2 respectively. A noise reduction component is provided at the connection between the hook 2 and the serpentine spring 3. The noise reduction component is used to reduce the risk of abnormal noise when the burrs of the hook 2 rub against the serpentine spring 3.

[0040] Combined with Figure 3 The noise reduction component includes a rubber sleeve 4. The rubber sleeve 4 is sleeved on the end of the serpentine spring 3. In this way, when the serpentine spring 3 moves relative to the hanging ear 2, the rubber sleeve 4 can isolate the serpentine spring 3 and the hanging ear 2, and control the abnormal sound from the source.

[0041] Combined with Figure 4 , the noise reduction component may also include an isolation protrusion 22. The isolation protrusion 22 is arranged on the hanging ear 2. The hanging ear 2 is composed of a welding surface 21 and a bending surface 23. The welding surface 21 is used to connect to the backrest bend 1. In actual application, the welding surface 21 is fixed to the backrest bend 1 by welding. The bending surface 23 is used for hanging the end of the serpentine spring 3. The isolation protrusion 22 is arranged on the side where the bending surface 23 is connected to the serpentine spring 3, and is used to prevent the serpentine spring 3 from directly contacting the bending surface 23. In view of the prior art that the serpentine spring 3 is hung on the hanging ear 2, the hanging ear 2 is in direct contact with the serpentine spring 3 for a long time, and the sheet metal is in direct contact for a long time, and a "creaking" sound will occur during use. To solve this problem, the hanging ear 2 is made into a sunken platform structure, that is, the isolation protrusion 22, such as Figure 3 , Figure 4 By reducing the contact area between the ear 2 and the serpentine spring 3, the abnormal noise phenomenon during use is optimized. The isolation protrusion 22 can be formed by a sink structure, or it can be formed by welding a protrusion on the bending surface 23. In the present application, a sink structure is used, which is simple to manufacture, does not require additional materials, and does not change the original quality of the ear 2.

[0042] The rubber sleeve 4 and the isolation protrusion 22 can be used alone or in combination. When the two are used in combination, the isolation protrusion 22 can also prevent the rubber sleeve 4 from being broken through and damaged by the sheet metal burrs on the bending surface 23.

[0043] A headrest conduit 9 is fixedly arranged on the top of the backrest curved pipe 1. A decorative rear support plate 7 is arranged at the connection between the headrest conduit 9 and the backrest curved pipe 1. The decorative rear support plate 7 is used to improve the connection strength between the headrest conduit 9 and the backrest curved pipe 1. Specifically, Figure 5 The headrest conduit 9 is formed by welding an inverted U-shaped bend pipe to the triangular area at the upper end of the backrest bend pipe. In this way, the cost of the headrest can be reduced and the support of the integrated headrest backrest bend pipe can be increased.

[0044] The decorative rear support plate 7 is set to a polygon. The decorative rear support plate 7 is provided with a flange at the place where it is connected to the backrest elbow 1. In the present application, the decorative rear support plate 7 can be conveniently fixed to the place where the backrest elbow 1 is connected to the headrest conduit 9 by setting the flange. Preferably, a support frame 71 with a hexagonal flanged sheet metal is used, such as Figure 5 , Figure 6 The sheet metal is punched in the middle to form a hexagonal structure, and each of the six sides is flanged. Among them, flange 73, flange 74, flange 76, flange 77 and four flanges are welded to the triangular area at the upper end of the backrest elbow, and flange 72 and flange 75 play a reinforcing role. After welding, the backrest elbow frame is more solid and stable. The punched holes on the sheet metal are used as decorative parts installation holes.

[0045] In order to improve the strength of the backrest bent tube 1 and prevent it from deforming, in the present application, a plurality of supporting steel wires are also provided on the backrest bent tube 1. Specifically, a backrest upper steel wire 5 is welded at the upper corner of the backrest bent tube 1 to support the backrest foam. Furthermore, parts such as a lower front supporting steel wire 6 for a decorative part, an upper front supporting steel wire 8 for a decorative part, and a rear supporting plate 7 for a decorative part are welded in the triangular area of ​​the backrest bent tube 1 near the headrest conduit 9 for assembling the backrest decorative part.

[0046] A backrest lower transverse pipe 10 is arranged below the backrest bent pipe 1 to increase the strength of the backrest bent pipe 1 and prevent the pipe frame from deforming.

[0047] The bottom of the backrest bend 1 is provided with a recliner 13. The backrest bend 1 is provided with a side plate 12 corresponding to the recliner 13. In order to solve the problems of the conventional backrest side plate being large and the frame being heavy, the design of the side plate 12 at the recliner 13 is as follows: Figure 7 , add a sheet metal side plate to the welding position of the lower right corner of the backrest bend 1 and the lower cross tube 10 of the backrest, wrap it around the welding point, and use it as a welding side plate for the angle adjuster to form a U-shaped groove welded on the backrest bend. It not only meets the installation and welding requirements of the angle adjuster 13, but also reduces the weight of the entire backrest bend 1, thereby achieving lightweight seat frame. The present application replaces the welded side plate structure with a tube frame welded steel wire structure, thereby reducing a side plate 12 and an angle adjuster 13, and replaces the original angle adjuster connecting side plate with a combination of a tube frame welded side plate and a welded steel wire, thereby reducing the size of the side plate 12. It effectively saves manufacturing costs, mold and tooling costs, reduces the weight of the frame, and achieves advantages such as lightweight seats.

[0048] Combined with Figure 1 and Figure 7 , the backrest side wing support steel wires 11 are welded on the side plate 12 and the backrest bent pipe 1 to support the side wing foams on both sides of the backrest. The backrest bottom support steel wires 14 are welded on the bottom of the backrest lower cross pipe 10 to support the bottom foam and realize the surface cover hanging. The overall backrest bent pipe weight is reduced and the manufacturing cost is reduced.

[0049] The present application also provides a seat assembly, which includes a seat body and a seat back bent tube structure, wherein the seat back bent tube structure is mounted on the seat body.

[0050] Furthermore, the present application also provides a vehicle, which includes a vehicle body and the seat assembly as described above, wherein the seat assembly is mounted on the vehicle body.

[0051] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A seat back curved pipe structure, characterized in that: The invention comprises a backrest bent tube (1) and a serpentine spring (3) arranged on the backrest bent tube (1); a hanging ear (2) is fixedly arranged on the backrest bent tube (1) at a connection position corresponding to the serpentine spring (3); an end of the serpentine spring (3) is hung on the hanging ear (2); and a noise reduction component is arranged at a connection position between the hanging ear (2) and the serpentine spring (3).

2. The seat back bent pipe structure according to claim 1, characterized in that: The noise reduction component comprises a rubber sleeve (4), and the rubber sleeve (4) is sleeved on the end of the serpentine spring (3).

3. The seat back bent pipe structure according to claim 1, characterized in that: The noise reduction component comprises an isolation protrusion (22); the hanging ear (2) consists of a welding surface (21) and a bending surface (23); the welding surface (21) is used to connect to the backrest bent tube (1); the bending surface (23) is used to hang the end of the serpentine spring (3); and the isolation protrusion (22) is arranged on the side where the bending surface (23) is connected to the serpentine spring (3).

4. The seat back bent pipe structure according to claim 1, characterized in that: A headrest conduit (9) is also fixedly provided on the top of the backrest curved tube (1), and a decorative rear support plate (7) is provided at the connection between the headrest conduit (9) and the backrest curved tube (1).

5. The seat back bent pipe structure according to claim 4, characterized in that: The decorative rear support plate (7) is arranged in a polygonal shape, and flanges are arranged at the connection between the decorative rear support plate (7) and the backrest bent pipe (1).

6. The seat back bent pipe structure according to claim 1, characterized in that: The backrest bent pipe (1) is also provided with a plurality of steel wires.

7. The seat back bent pipe structure according to claim 1, characterized in that: The backrest bent tube (1) is provided with a backrest lower transverse tube (10), the bottom of the backrest lower transverse tube (10) is provided with a backrest bottom supporting steel wire (14), the bottom end of the backrest bent tube is provided with an angle adjuster (13), and the backrest bent tube (1) is provided with a side plate (12) corresponding to the angle adjuster (13).

8. A seat assembly, characterized in that: The seat comprises a seat body and a seat back bent tube structure as claimed in any one of claims 1 to 7, wherein the seat back bent tube structure is mounted on the seat body.

9. A vehicle, characterized in that: The vehicle includes a vehicle body and the seat assembly according to claim 8, wherein the seat assembly is mounted on the vehicle body.

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