A lumbar support device for a car seat

Abstract

The utility model discloses a kind of waist support devices for car seat, specifically related to the technical field of waist support device, including placement plate, the outer surface wall of placement plate is connected with wrapping cover, the inside of wrapping cover is equipped with sponge pad, and elastic connecting structure is equipped between the sponge pad and placement plate, for the waist curve of different body type driver and passenger, leaning intensity and angle are independently self-adapting contraction. The utility model is through setting elastic connecting structure, when driver and passenger lean on waist, can be self-adapting contraction according to different body type driver and passenger, different leaning intensity and angle, can be fitted with the concave-convex curve of waist, solve the problem that traditional fixed support structure is suspended or compressed due to unable to match individual difference, not only effectively disperses waist pressure, but also in the process of vehicle driving bumping, reduce the impact force borne by waist by elastic buffering, significantly reduce the waist fatigue caused by long time driving.

Description

Technical Field

[0001] This utility model relates to the technical field of lumbar support devices, specifically to a lumbar support device for automobile seats. Background Technology

[0002] In modern society, cars have become an important tool for people's daily travel. People spend more and more time in their cars. During long-term driving and riding, the lower back has to bear most of the weight of the upper body. Ordinary car seats cannot provide effective support for the lower back, which can easily cause lower back pain, fatigue, and even diseases such as lumbar muscle strain and lumbar disc herniation. Car seat lumbar support devices can effectively distribute pressure on the lower back, provide stable support for the lower back, help drivers and passengers maintain the correct sitting posture, relieve lower back fatigue, reduce the risk of lower back diseases, and provide strong protection for the lower back health of drivers and passengers while improving driving and riding comfort.

[0003] Application No. 202323631951.2 discloses a lumbar support device for automobile seats, "including a seat body, a support mechanism provided on one side of the seat body, the support mechanism including a placement plate, the surface of the placement plate near the seat body contacting the seat body, a support plate fixedly installed inside the placement plate, and a placement groove for cooperating with the support plate being opened inside the placement plate." The above-mentioned device provides basic lumbar support for drivers and passengers by providing a support mechanism including a placement plate and a support plate on one side of the seat body. However, in use, relying solely on the fixed structure of the placement plate and the support plate cannot adapt to different driving and passenger needs. Due to differences in the physiological curves of the lumbar region, blind spots or excessive local compression are easily created. Furthermore, when encountering dynamic conditions such as bumps and turns during vehicle operation, this single fixed support mode is unable to buffer vibrations and disperse lateral pressure through structural adjustments, resulting in ineffective relief of the impact force on the lumbar region. Prolonged use may exacerbate lumbar fatigue and the risk of injury. In addition, the device lacks any adjustment components and cannot adaptively adjust according to the real-time changes in the driver's and passenger's sitting posture and leaning force, making it difficult to meet diverse driving and riding needs. It is clearly deficient in terms of support comfort, flexibility, and functionality. Utility Model Content

[0004] The purpose of this invention is to provide a lumbar support device for automobile seats to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lumbar support device for a car seat, comprising a placement plate, a cover connected to the outer wall of the placement plate, a sponge pad inside the cover, the sponge pad being made of slow rebound memory foam material, and the outer wall of the sponge pad fitting against the inner wall of the cover, two connecting side blocks symmetrically connected to both sides of the outer wall of the placement plate, one end of each of the two connecting side blocks being connected to a strap, and Velcro sewn onto the strap.

[0006] Specifically, in use, first, attach the placement plate to the back of the car seat. Then, use a combination of Velcro and two straps to securely fasten the lumbar support device to the seat back. When the driver or passenger sits down, their lower back naturally rests on the sponge pad. The sponge pad has good softness and resilience, which can effectively distribute lumbar pressure and conform to the curve of the human waist. At the same time, the placement plate provides a stable support base. The two work together to provide comfortable and stable support for the driver's or passenger's lower back. In addition, this fixing method is easy to disassemble and install, suitable for seats of different models, and easy to clean and maintain. While improving driving and riding comfort, it ensures that the lumbar support device can function stably for a long time.

[0007] Preferably, the sponge pad and the placement board are provided with an elastic connection structure, which is used to independently and adaptively shrink according to the waist curve, leaning force and angle of different body types of drivers and passengers, so that the sponge pad closely fits the physiological curvature of the human lumbar spine.

[0008] Preferably, the elastic connection structure includes a connecting plate connected to the side of the placement plate near the sponge pad, and a plurality of elastic columns are evenly connected on the surface wall of the connecting plate. The free end of each elastic column is connected to a fixing block, and the fixing block is connected to the sponge pad.

[0009] Preferably, the elastic column includes a hollow connecting column fixedly connected to the side wall of the connecting plate, and an elastic connecting column is connected inside the hollow connecting column, the free end of the elastic connecting column being connected to the fixed block.

[0010] Through the above technical solution:

[0011] When the occupant leans against the wall, the elastic connection between the elastic connecting column and the hollow connecting column, along with the individual elastic columns and the fixing blocks, allows for adaptive contraction and retraction based on the occupant's body shape, the degree of leaning, and the angle. This conforms to the contours of the lumbar region, eliminating the issues of suspension and pressure associated with traditional support structures. It reduces lumbar fatigue by elastically buffering and dispersing pressure, mitigating the impact of bumps, and strengthening the support in key stress areas while providing cushioning for other areas. This comprehensively enhances the comfort and fit of the lumbar support. (The fixing blocks are made of composite materials such as glass fiber reinforced plastic or carbon fiber reinforced plastic, which combine high strength and lightweight properties. Their strength is comparable to metal, while their weight is lighter. While ensuring the supporting performance of the fixing blocks, the overall weight of the lumbar support device can be significantly reduced. Furthermore, composite materials can be customized to meet specific needs, adjusting their mechanical properties and structural characteristics to better suit the working requirements of the elastic columns and the sponge pad.)

[0012] Preferably, the connection between the elastic connection structure and the placement plate is provided with an auxiliary component to realize the lateral offset of the support part, conform to the lateral force change of the waist, and disperse the pressure generated by centrifugal force.

[0013] Preferably, the auxiliary component includes a movable groove formed on the surface wall of the placement plate, a movable plate slidably connected inside the movable groove, and a spring connected to the outside of the movable plate and inside the movable groove.

[0014] Preferably, the auxiliary component further includes a slider fixedly connected to the outer wall of the movable plate, and the inner surface of the movable groove is provided with a groove for cooperating with the slider.

[0015] Through the above technical solution:

[0016] When the vehicle turns, the sliding connection between the movable plate and the placement plate through the movable groove, combined with the elastic return mechanism of the spring, causes the body to tilt and the driver's body to move laterally. At this time, the movable plate can automatically shift laterally based on the sliding connection characteristics, so as to conform to the lateral force change of the waist, disperse the pressure generated by centrifugal force, and avoid local pressure. After the vehicle returns to the center, the spring drives the movable plate to return to its original position. This design enhances the adaptability of lumbar support in complex road conditions, continuously and stably supports the waist during frequent turns, effectively relieves fatigue caused by posture changes, and improves driving comfort and safety.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. By setting up an elastic connection structure, when the driver or passenger leans against it, it can adaptively shrink according to different body types, different leaning forces and angles, and can conform to the concave and convex curves of the waist. This solves the problem of the suspended or oppressive feeling caused by the inability of traditional fixed support structures to match individual differences. It not only effectively disperses the pressure on the waist, but also reduces the impact force on the waist during vehicle bumps through elastic cushioning, significantly reducing waist fatigue caused by long-term driving. At the same time, the independent unit design makes the support force of each part independent yet synergistic, which can provide enhanced support for the key stress areas of the waist, and also provide moderate cushioning for other parts, comprehensively improving the comfort and fit of the waist support and improving the support effect.

[0019] 2. By incorporating auxiliary components, the support components automatically shift laterally when the vehicle turns, conforming to the lateral force changes in the lumbar region. This effectively distributes the lumbar pressure generated by centrifugal force across the entire support surface, preventing discomfort caused by excessive local pressure. Once the vehicle returns to center, the spring, with its stable elastic potential energy, quickly drives the movable plate back to its initial position, ensuring optimal lumbar support at all times. This design not only significantly improves the adaptability of lumbar support in complex driving scenarios but also provides stable and conforming support to the lumbar region during frequent turns and lane changes, effectively alleviating lumbar fatigue caused by changes in vehicle posture. This greatly enhances comfort and safety during driving, ensuring reliable lumbar support for every turn. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is one of the schematic diagrams showing the connection between the sponge pad and the elastic connection structure of this utility model;

[0023] Figure 3 This is the second schematic diagram of the connection between the sponge pad and the elastic connection structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the elastic column of this utility model;

[0025] Figure 5 This is a cross-sectional view of the placement plate of this utility model;

[0026] Figure 6 This is an enlarged schematic diagram showing the connection between the movable plate and the placement plate of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Placement plate; 2. Wrapping sleeve; 3. Sponge pad; 4. Connecting plate; 5. Elastic connection structure; 51. Elastic column; 511. Hollow connecting column; 512. Elastic connecting column; 52. Fixing block; 6. Movable groove; 7. Movable plate; 8. Spring; 9. Slider; 10. Slide groove; 11. Connecting side block; 12. Strap. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides, for example Figures 1-3 A lumbar support device for a car seat, shown, includes:

[0031] The placement board 1 has a cover 2 attached to its outer wall. The cover 2 has a sponge pad 3 inside. The sponge pad 3 is made of slow rebound memory foam. The outer wall of the sponge pad 3 is attached to the inner wall of the cover 2. Two connecting side blocks 11 are symmetrically connected to the two sides of the outer wall of the placement board 1. One end of each connecting side block 11 is connected to a strap 12. Velcro is sewn onto the strap 12.

[0032] Specifically, in use, first attach the placement board 1 to the back of the car seat, then use a combination of Velcro and two straps 12 to securely fasten the lumbar support device to the seat back. When the driver or passenger sits down, the lower back naturally rests on the sponge pad 3. The sponge pad 3 has good softness and resilience, which can effectively distribute the pressure on the lower back and conform to the curve of the human waist. At the same time, the placement board 1 provides a stable support base. The two work together to provide comfortable and stable support for the driver's or passenger's lower back. In addition, this fixing method is easy to disassemble and install, is suitable for seats of different models, and is easy to clean and maintain. While improving driving and riding comfort, it ensures that the lumbar support device can function stably for a long time.

[0033] This utility model provides, for example Figures 2-4 The device shown is a lumbar support device for a car seat. The sponge pad 3 and the placement plate 1 are provided with an elastic connection structure 5, which is used to independently and adaptively shrink according to the lumbar curve, leaning force and angle of different body types of drivers and passengers, so that the sponge pad 3 closely fits the physiological curvature of the human lumbar spine.

[0034] The elastic connection structure 5 includes a connecting plate 4 connected to the side of the placement plate 1 near the sponge pad 3. Multiple elastic columns 51 are evenly connected on the surface wall of the connecting plate 4. The free end of the elastic column 51 is connected to a fixing block 52, and the fixing block 52 is connected to the sponge pad 3.

[0035] The elastic column 51 includes a hollow connecting column 511 fixedly connected to the side wall of the connecting plate 4. An elastic connecting column 512 is connected inside the hollow connecting column 511. The free end of the elastic connecting column 512 is connected to the fixed block 52.

[0036] Through the above technical solution:

[0037] When the occupant leans against the wall, the elastic connection between the elastic connecting column 512 and the hollow connecting column 511, along with the individual elastic columns 51 and fixing blocks 52, allows for adaptive contraction and retraction based on the occupant's body shape, the force of leaning, and the angle. This conforms to the convex and concave curves of the lumbar region, eliminating the problems of suspension and pressure in traditional support structures. It disperses pressure through elastic buffering, reduces the impact of bumps, and lowers lumbar fatigue. Furthermore, the independent units not only strengthen the support of key stress areas but also provide cushioning for other parts, comprehensively improving the comfort and fit of the lumbar support. (The fixing blocks 52 are made of composite materials such as glass fiber reinforced plastic or carbon fiber reinforced plastic, which have the advantages of high strength and lightweight. Their strength is comparable to that of metal, while being lighter in weight. While ensuring the support performance of the fixing blocks 52, the overall weight of the lumbar support device can be significantly reduced. In addition, composite materials can be customized according to actual needs, adjusting the mechanical properties and structural characteristics of the materials to better adapt to the working requirements of the elastic columns 51 and the sponge pad 3.)

[0038] This utility model provides, for example Figure 5 and Figure 6 The lumbar support device for a car seat shown has an auxiliary component at the connection between the elastic connection structure 5 and the placement plate 1, which is used to realize the lateral offset of the support part, conform to the lateral force change of the waist, and disperse the pressure generated by centrifugal force.

[0039] The auxiliary component includes a movable groove 6 formed on the surface wall of the placement plate 1, a movable plate 7 slidably connected inside the movable groove 6, and a spring 8 connected to the outside of the movable plate 7 and inside the movable groove 6.

[0040] The auxiliary components also include a slider 9 fixedly connected to the outer wall of the movable plate 7, and a groove 10 for use with the slider 9 is provided on the inner surface of the movable groove 6.

[0041] Through the above technical solution:

[0042] When the vehicle turns, the sliding connection between the movable plate 7 and the movable slot 6 in the placement plate 1, combined with the elastic return mechanism of the spring 8, causes the body to tilt and the driver's body to move laterally. At this time, the movable plate 7 can automatically shift to the side based on the sliding connection characteristics, so as to conform to the lateral force change of the waist, disperse the pressure generated by centrifugal force, and avoid local pressure. After the vehicle returns to the straight position, the spring 8 drives the movable plate 7 to return to its original position. This design enhances the adaptability of the lumbar support in complex road conditions, continuously and stably supports the waist during frequent turns, effectively relieves fatigue caused by posture changes, and improves driving comfort and safety.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lumbar support device for a car seat, characterized in that, include: Placement board (1), the outer wall of the placement board (1) is connected to a cover (2), and the inside of the cover (2) is provided with a sponge pad (3); An elastic connection structure (5) is provided between the sponge pad (3) and the placement plate (1) to independently and adaptively shrink according to the waist curve, leaning force and angle of different body types of drivers and passengers, so that the sponge pad (3) closely fits the physiological curvature of the human lumbar spine. An auxiliary component is provided at the connection between the elastic connection structure (5) and the placement plate (1) to realize the lateral offset of the support part, fit the lateral force change of the waist, and disperse the pressure generated by centrifugal force.

2. The lumbar support device for a car seat according to claim 1, characterized in that: The elastic connection structure (5) includes a connecting plate (4) connected to the side of the placement plate (1) near the sponge pad (3). Multiple elastic columns (51) are evenly connected on the surface wall of the connecting plate (4). A fixing block (52) is connected to the free end of the elastic column (51). The fixing block (52) is connected to the sponge pad (3).

3. A lumbar support device for a car seat according to claim 2, characterized in that: The elastic column (51) includes a hollow connecting column (511) fixedly connected to the side wall of the connecting plate (4), and an elastic connecting column (512) is connected inside the hollow connecting column (511). The free end of the elastic connecting column (512) is connected to the fixed block (52).

4. A lumbar support device for a car seat according to claim 1, characterized in that: The sponge pad (3) is made of slow rebound memory foam material, and the outer wall of the sponge pad (3) is attached to the inner wall of the cover (2).

5. A lumbar support device for a car seat according to claim 1, characterized in that: The auxiliary component includes a movable groove (6) formed on the surface wall of the placement plate (1), a movable plate (7) is slidably connected inside the movable groove (6), and a spring (8) is connected to the outside of the movable plate (7) and inside the movable groove (6).

6. A lumbar support device for a car seat according to claim 5, characterized in that: The auxiliary component also includes a slider (9) fixedly connected to the outer wall of the movable plate (7), and the inner surface of the movable groove (6) is provided with a groove (10) that cooperates with the slider (9).

7. A lumbar support device for a car seat according to claim 1, characterized in that: The outer wall of the placement plate (1) is symmetrically connected to two connecting side blocks (11), and one end of each of the two connecting side blocks (11) is connected to a strap (12), and the strap (12) is sewn with Velcro.

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