A reversible automotive seat support device

By designing a flip-up car seat support device, the lumbar support cushion can be stored and locked using a flip structure and auxiliary components. This solves the problems of space occupation when the seat is folded and easy damage to the lumbar support, improves space utilization and device lifespan, and provides stable lumbar support.

CN224476862UActive Publication Date: 2026-07-10WUXI LEGGETT & PLATT-HUAGUANG AUTOMOBILE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI LEGGETT & PLATT-HUAGUANG AUTOMOBILE PARTS CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing car seat lumbar supports take up space when folded, affecting the utilization of the trunk, and are easily damaged by compression, failing to meet users' needs for flexible use of interior space and placement of items.

Method used

Design a flip-up car seat support device that uses a flip structure and auxiliary components to store and lock the lumbar support pad, uses elastic connecting columns to provide personalized support, and combines gear transmission to achieve flexible flipping and stable locking of the lumbar support pad.

Benefits of technology

It effectively reduces seat thickness, improves space utilization, avoids damage to the lumbar support cushion, extends its service life, and ensures the stability of the lumbar support and the integrity of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of overturnable car seat supporting devices, specifically related to the technical field of car seat waist support, including backplate, the front surface wall of backplate is equipped with placing groove, the inside front end of placing groove is equipped with connecting plate, the lateral wall of connecting plate is connected with first elastic connecting column, the free end of first elastic connecting column is connected with waist support pad, the connecting place of connecting plate and backplate is equipped with overturning structure, for realizing the flexible overturning storage of connecting plate and waist support pad.The utility model is equipped with overturning structure, so that the device has overturning function, before seat folding, the overturning of connecting plate can be realized, the convex waist support pad is stored in placing groove, the thickness of seat can be effectively reduced, not only make bulky article placement no longer be limited by convex waist support, greatly improve the space utilization rate in vehicle, but also can avoid that waist support pad is extruded and collides when seat folding or carrying article, prolong the service life of device.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat lumbar support technology, specifically to a flip-up automotive seat support device. Background Technology

[0002] Cars have become an important tool for people's daily travel and long-distance travel. However, long-term driving can easily lead to problems such as lumbar muscle strain and increased pressure on the lumbar spine. As a key component to improve the driving experience, car seat lumbar supports have emerged. Their main function is to provide scientific support for the lumbar region of passengers. By distributing lumbar spine pressure and maintaining the natural physiological curvature, they can effectively relieve lumbar fatigue, reduce the risk of lumbar diseases, and significantly improve driving comfort and health protection. This support device is mainly composed of a lumbar support pad, which usually adopts an ergonomic curved design and is combined with high-elasticity memory foam, breathable mesh fabric and other materials. It can accurately fit the lumbar curve and achieve breathability and heat dissipation, ensuring comfort for long-term use.

[0003] Application No. 202420950575.9 discloses a car seat lumbar support mechanism, "including a base, a tightening rope fixed to the rear side of the base by rivets, a lumbar support pad flexibly provided on the front side of the base, at least four grooves opened on the front side of the base, and a screw assembly provided in each groove; the screw assembly includes a screw and a screw sleeve, the screw is rotatably disposed in the groove, the screw sleeve is threadedly disposed on the outer side of the screw, and the inner side of each screw sleeve is rotatably connected to the outer side of the lumbar support pad, the front side of the lumbar support pad is provided with a groove, and the lumbar support pad is provided with a through hole." The tightening rope fixed to the rear side of the base and... The flexible lumbar support pad on the front uses a screw assembly to deform and adjust the support and fit for the waist, which to some extent meets the user's needs for lumbar support. However, when the seat needs to be folded down to expand storage space, the protruding lumbar support pad takes up a lot of space and may even hinder the normal folding of the seat, making it difficult to fully flatten the seat and make it impossible to make full use of the trunk space. This fails to meet the user's need for flexible use of the interior space. Secondly, when placing items, the protruding lumbar support pad restricts the placement of items, and the lumbar support pad is easily squeezed and damaged, thus affecting the stability of the placed items. Utility Model Content

[0004] The purpose of this invention is to provide a flip-up car seat support device to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flip-up car seat support device, including a back panel, a placement groove is provided on the front surface wall of the back panel, a connecting plate is provided at the front end of the placement groove, a first elastic connecting post is connected to the side wall of the connecting plate, a lumbar support pad is connected to the free end of the first elastic connecting post, a plurality of protrusions are evenly connected to the side wall of the lumbar support pad away from the first elastic connecting post, a connecting seat is fixedly connected to the outer surface wall of the back panel, and a detachable strap is connected to one end of the connecting seat.

[0006] Preferably, a sliding component is provided at the connection between the lumbar support pad and the connecting plate, which is used to elastically deform the lumbar support pad according to the magnitude of the force, so that the distance between the lumbar support pad and the connecting plate is adaptively adjusted according to the actual leaning force, thereby providing personalized support that conforms to the waist curve for the driver and passenger. The sliding component includes a groove formed on the front surface wall of the connecting plate, and a slider is embedded in the groove. One end of the slider is connected to the lumbar support pad.

[0007] Preferably, the sliding assembly further includes a second elastic connecting column connected to the inner wall of the connecting plate and located in the groove at one end of the sliding groove, the free end of the second elastic connecting column being connected to the slider.

[0008] Specifically, in use, the support device is first fixed to the seat back using the straps. When the driver or passenger sits down, their lower back naturally rests on the lumbar support cushion. At this time, the protrusions on the lumbar support cushion correspond to specific areas of the driver's or passenger's back, providing strong support for the lower back through moderate pressure and effectively relieving lower back pressure. At the same time, the elasticity of the first elastic connecting column allows adjustment of the distance between the lumbar support cushion and the connecting plate according to the actual body shape, leaning force, and habits of the person leaning against it. During this process, the slider, elastically connected by the second elastic connecting column, will slide accordingly within the groove based on the deformation of the lumbar support cushion. The second elastic connecting column not only assists the first elastic connecting column in adjusting the distance but also provides dynamic cushioning and support when the driver or passenger changes their sitting posture or leaning angle, ensuring that the lumbar support cushion always conforms to the lumbar curve, providing a comfortable and continuous lumbar support experience for the driver or passenger.

[0009] Preferably, the connection between the connecting plate and the back plate is provided with a flip structure to enable flexible flipping and storage of the connecting plate and the lumbar support pad.

[0010] Preferably, the flipping structure is provided in two sets, each set including two movable slots opened on the inner wall of the back plate, and a connecting shaft is rotatably connected inside the two movable slots. One end of each connecting shaft is fixedly connected to a connecting plate, and a first gear is fixedly connected to the outer wall of each connecting shaft.

[0011] Preferably, the flipping structure further includes a second gear meshing with one side of the first gear, the second gear being rotatably connected to the inside of the movable groove, and a connecting rod being fixedly connected to the upper end face of the second gear, with a handle connected to the upper end of the connecting rod located above the connecting plate.

[0012] Preferably, the upper end face of the handle has a buckle groove, and the upper end face of the back plate has a groove for inserting the handle.

[0013] Through the above technical solution:

[0014] Before folding the seat, hold and rotate the handle to drive the second gear to rotate in the movable slot. Based on the gear transmission principle, the first gear rotates synchronously with the second gear, thereby driving the connecting shaft to rotate. This operation can flip the connecting plate and store the protruding lumbar support pad into the placement slot (the lumbar support pad is compressed and flattened after being pressed). This can effectively reduce the thickness of the seat, eliminate the obstruction of the lumbar support for placing large items, improve space utilization, and at the same time prevent the lumbar support pad from being damaged when the seat is folded or items are moved, thus extending the service life of the device.

[0015] Preferably, the flipping structure is provided with an auxiliary component for locking the lumbar support pad after flipping.

[0016] Preferably, the auxiliary component includes a slot formed inside the connecting rod, an elastic movable rod connected inside the slot, the free end of the elastic movable rod being connected to a handle, a fixing ring being fixedly connected to the inner wall of the slot, and a polyurethane elastic ring block for use with the handle being connected to the inner wall of the fixing ring.

[0017] Through the above technical solution:

[0018] After flipping, release the handle. Using the elastic force of the elastic movable rod, the handle is embedded in the groove. (Before flipping, by pulling and lifting the groove, the handle is pulled out of the groove using the elastic force of the elastic movable rod.) After embedding, the polyurethane elastic ring block on the inner side wall of the fixing ring, with its own elasticity and wear resistance, adapts to the recess of the convex tooth block on the outer side wall of the handle, forming a matching groove to complete the locking. This secure locking effectively prevents the connecting plate and the lumbar support pad from accidentally flipping over. It ensures the lumbar support pad is stable during support, avoiding support failure, and prevents it from popping out and being damaged during storage, protecting the integrity of the device and extending its service life.

[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0020] 1. By setting a flipping structure, the device has a flipping function. Before the seat is folded, the connecting plate can be flipped to store the protruding lumbar support pad into the placement slot. This can effectively reduce the thickness of the seat, which not only makes it no longer restricted by the protruding lumbar support when placing large items, greatly improving the utilization of the interior space, but also prevents the lumbar support pad from being squeezed and bumped when the seat is folded or when carrying items, thus extending the service life of the device.

[0021] 2. By setting auxiliary components, a reliable locking function can be provided after flipping, effectively preventing the connecting plate and lumbar support pad from accidentally flipping. This not only ensures the stability of the lumbar support pad during support, avoiding the disadvantages of support force shifting or failure due to accidental flipping of the lumbar support pad, thus ensuring the stability of lumbar support, but also allows the lumbar support pad to be stored securely, preventing accidental flipping from damaging the device, effectively protecting the integrity of the device and extending its service life. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the back plate of this utility model;

[0025] Figure 3 This is a schematic diagram showing the connection between the connecting plate and the back plate of this utility model;

[0026] Figure 4 This is an enlarged schematic diagram of the flipping structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the flipping structure of this utility model;

[0028] Figure 6 This is an enlarged schematic diagram of the auxiliary components of this utility model;

[0029] Figure 7 This is a schematic diagram showing the connection between the lumbar support pad and the connecting plate of this utility model;

[0030] Figure 8 This is an enlarged schematic diagram of the sliding component of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Backplate; 2. Placement slot; 3. Connecting plate; 4. Waist support pad; 5. Flip structure; 51. Movable slot; 52. Connecting shaft; 53. First gear; 54. Second gear; 55. Connecting rod; 56. Handle; 57. Buckle slot; 58. Embedded slot; 6. Auxiliary component; 61. Empty slot; 62. Elastic movable rod; 63. Fixing ring; 64. Polyurethane elastic ring block; 7. First elastic connecting post; 8. Protrusion; 9. Sliding component; 91. Slider; 92. Slide groove; 93. Second elastic connecting post; 10. Connecting seat; 11. Strap. Detailed Implementation

[0033] 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.

[0034] This utility model provides, for example Figures 1-3 A foldable car seat support device is shown, comprising:

[0035] The back panel 1 has a placement groove 2 on its front surface wall. The front end of the placement groove 2 has a connecting plate 3. The side wall of the connecting plate 3 is connected to a first elastic connecting post 7. The free end of the first elastic connecting post 7 is connected to a waist support pad 4. The side wall of the waist support pad 4 away from the first elastic connecting post 7 is evenly connected to multiple protrusions 8. The outer surface wall of the back panel 1 is fixedly connected to a connecting seat 10. One end of the connecting seat 10 is connected to a detachable strap 11.

[0036] Further, see Figure 7 and Figure 8 As shown, a sliding component 9 is provided at the connection between the lumbar support pad 4 and the connecting plate 3. This component is used to allow the lumbar support pad 4 to undergo elastic deformation according to the magnitude of the force applied, so that the distance between the lumbar support pad 4 and the connecting plate 3 can be adaptively adjusted according to the actual leaning force, thereby providing personalized support that conforms to the waist curve for the driver and passenger. The sliding component 9 includes a groove 92 opened on the front surface wall of the connecting plate 3, and a slider 91 is embedded inside the groove 92. One end of the slider 91 is connected to the lumbar support pad 4.

[0037] The sliding assembly 9 also includes a second elastic connecting post 93 connected to the inner wall of the connecting plate 3 and located in the groove at one end of the slide groove 92. The free end of the second elastic connecting post 93 is connected to the slider 91.

[0038] Specifically, in use, the support device is first fixed to the seat back using the strap 11. When the driver or passenger sits down, their lower back naturally rests on the lumbar support pad 4. At this time, the protrusions 8 on the lumbar support pad 4 correspond to specific areas on the back of the driver or passenger, providing strong support for the lower back through moderate pressure, effectively relieving lower back pressure. At the same time, the elasticity of the first elastic connecting column 7 can be used to adjust the distance between the lumbar support pad 4 and the connecting plate 3 according to the actual body shape, leaning force, and habits of the person leaning against it. During this process, the slider 91, which is elastically connected by the second elastic connecting column 93, will slide accordingly in the groove 92 according to the deformation of the lumbar support pad 4. The second elastic connecting column 93 can not only assist the first elastic connecting column 7 in adjusting the distance, but also provide dynamic buffering and support when the driver or passenger changes their sitting posture or leaning angle, so that the lumbar support pad 4 always conforms to the waist curve, bringing a comfortable and continuous lumbar support experience to the driver or passenger.

[0039] This utility model provides, for example Figures 1-5 The illustrated car seat support device has a flip structure 5 at the connection between the connecting plate 3 and the back panel 1, which allows the connecting plate 3 and the lumbar support pad 4 to be flexibly flipped and stored.

[0040] The flipping structure 5 is provided in two sets. The two sets of flipping structures 5 include two movable grooves 51 opened on the inner wall of the back plate 1. The interior of the two movable grooves 51 is rotatably connected to the connecting shafts 52. One end of each connecting shaft 52 is fixedly connected to the connecting plate 3, and the outer wall of each connecting shaft 52 is fixedly connected to the first gear 53.

[0041] The flipping structure 5 also includes a second gear 54 meshing with one side of the first gear 53. The second gear 54 is rotatably connected to the inside of the movable groove 51, and a connecting rod 55 is fixedly connected to the upper end of the second gear 54. A handle 56 is connected to the upper end of the connecting rod 55 located above the connecting plate 3.

[0042] The upper surface of the handle 56 has a latching groove 57, and the upper surface of the back plate 1 has a recessing groove 58 for inserting the handle 56.

[0043] Through the above technical solution:

[0044] Before folding the seat, hold and turn the handle 56 to drive the second gear 54 to rotate in the movable slot 51. Based on the gear transmission principle, the first gear 53 rotates synchronously with the second gear 54, thereby driving the connecting shaft 52 to rotate. This operation can realize the flipping of the connecting plate 3, and store the protruding lumbar support pad 4 into the placement slot 2 (the lumbar support pad 4 is compressed and flattened after being pressed). This can effectively reduce the thickness of the seat, eliminate the obstruction of the lumbar support to the placement of large items, improve space utilization, and at the same time prevent the lumbar support pad 4 from being damaged when the seat is folded or items are moved, thus extending the service life of the device.

[0045] This utility model provides, for example Figures 4-6 The illustration shows a flip-up car seat support device, wherein the flip structure 5 is provided with an auxiliary component 6 for locking the lumbar support pad 4 after flipping.

[0046] The auxiliary component 6 includes a slot 61 formed inside the connecting rod 55. An elastic movable rod 62 is connected inside the slot 61. The free end of the elastic movable rod 62 is connected to the handle 56. A retaining ring 63 is fixedly connected to the inner wall of the groove 58. A polyurethane elastic ring block 64 that cooperates with the handle 56 is connected to the inner wall of the retaining ring 63.

[0047] Through the above technical solution:

[0048] After flipping, release the handle 56. Using the elastic force of the elastic rod 62, the handle 56 is embedded in the groove 58. (Before flipping, by pulling and lifting the buckle groove 57, the handle 56 is pulled out of the movable groove 51 using the elastic force of the elastic rod 62.) After being embedded, the polyurethane elastic ring block 64 on the inner wall of the fixing ring 63 adapts to the recess of the convex tooth block on the outer wall of the handle 56 based on its own elasticity and wear resistance, forming a matching block groove to complete the locking. This secure locking effectively prevents the connecting plate 3 and the lumbar support pad 4 from accidentally flipping. It ensures that the lumbar support pad 4 is stable when supported, avoiding support failure. It also prevents it from popping out and being damaged when stored, protecting the integrity of the device and extending its service life.

[0049] 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 flip-up car seat support device, characterized in that, include: Back panel (1), the front surface wall of the back panel (1) is provided with a placement groove (2), the front end of the placement groove (2) is provided with a connecting plate (3), the side wall of the connecting plate (3) is connected with a first elastic connecting column (7), and the free end of the first elastic connecting column (7) is connected with a waist support pad (4). The connection between the connecting plate (3) and the back plate (1) is provided with a flip structure (5) for flexible flipping and storage of the connecting plate (3) and the lumbar support pad (4). The flip structure (5) is provided with an auxiliary component (6) for locking the lumbar support pad (4) after flipping.

2. The rotatable car seat support device according to claim 1, characterized in that: The flipping structure (5) is provided in two sets. The two sets of flipping structures (5) include two movable grooves (51) opened on the inner wall of the back plate (1). The interior of the two movable grooves (51) is rotatably connected to a connecting shaft (52). One end of the two connecting shafts (52) is fixedly connected to the connecting plate (3), and the outer wall of the two connecting shafts (52) is fixedly connected to a first gear (53).

3. The rotatable car seat support device according to claim 2, characterized in that: The flipping structure (5) also includes a second gear (54) meshing with one side of the first gear (53). The second gear (54) is rotatably connected to the inside of the movable groove (51), and a connecting rod (55) is fixedly connected to the upper end face of the second gear (54). A handle (56) is connected to the upper end of the connecting rod (55) located above the connecting plate (3).

4. The rotatable car seat support device according to claim 3, characterized in that: The upper surface of the handle (56) is provided with a buckle groove (57), and the upper surface of the back plate (1) is provided with a groove (58) for the handle (56) to be inserted.

5. A flip-up car seat support device according to claim 4, characterized in that: The auxiliary component (6) includes a slot (61) opened inside the connecting rod (55), and an elastic movable rod (62) is connected inside the slot (61). The free end of the elastic movable rod (62) is connected to the handle (56). A fixing ring (63) is fixedly connected to the inner wall of the groove (58), and a polyurethane elastic ring block (64) that cooperates with the handle (56) is connected to the inner wall of the fixing ring (63).

6. The rotatable car seat support device according to claim 1, characterized in that: A sliding component (9) is provided at the connection between the lumbar support pad (4) and the connecting plate (3) to allow the lumbar support pad (4) to undergo elastic deformation according to the magnitude of the force, so that the distance between the lumbar support pad (4) and the connecting plate (3) can be adaptively adjusted according to the actual leaning force, thereby providing personalized support that fits the waist curve for the driver and passenger. The sliding component (9) includes a groove (92) opened on the front surface wall of the connecting plate (3), and a slider (91) is embedded inside the groove (92). One end of the slider (91) is connected to the lumbar support pad (4).

7. A flip-up car seat support device according to claim 6, characterized in that: The sliding assembly (9) further includes a second elastic connecting column (93) connected to the inner wall of the connecting plate (3) and located in the groove at one end of the slide (92), the free end of the second elastic connecting column (93) being connected to the slider (91).

8. A flip-up car seat support device according to claim 7, characterized in that: The lumbar support pad (4) has multiple protrusions (8) evenly connected to the side wall away from the first elastic connecting post (7), and the outer wall of the back plate (1) is fixedly connected to a connecting seat (10), and one end of the connecting seat (10) is connected to a detachable strap (11).

Citation Information

Patent Citations

  • Waist support mechanism of automobile seat

    CN222246948U