Lumbar support adjustment device, seat and vehicle

Abstract

The application relates to the technical field of vehicles and aims to solve the problem of improving the riding comfort of a waist support, and provides a waist support adjusting device, a seat and a vehicle. The waist support adjusting device comprises an adjusting assembly and a moving assembly. The adjusting assembly is used for connecting a seat framework. The moving assembly comprises a first support, a second support and a rotating driving assembly. The second support is rotatably connected to the first support. The rotating driving assembly is drivingly connected to the second support and is used for driving the second support to rotate relative to the first support. The first support is drivingly connected to the adjusting assembly and can move relative to the seat framework under the driving of the adjusting assembly. The application has the beneficial effect that the waist support adjustment of the seat is more accurate, can be adapted to different groups of riders and improves the riding comfort.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to lumbar support adjustment devices, seats, and vehicles. Background Technology

[0002] Vehicle seats are essential components that provide support and safety protection for occupants within a vehicle. Related technologies include a seat that includes a lumbar support mounted on a seat frame to provide support for the occupant.

[0003] However, the lumbar support in this technology offers relatively low riding comfort. Utility Model Content

[0004] This application provides a lumbar support adjustment device, a seat, and a vehicle to address the issue of how to improve the comfort of lumbar support.

[0005] According to one aspect of this application, a lumbar support adjustment device is provided, including an adjustment assembly and a moving assembly. The adjustment assembly is used to connect to a seat frame. The moving assembly includes a first support member, a second support member, and a rotation drive assembly. The second support member is rotatably connected to the first support member, and the rotation drive assembly is driven to the second support member to drive the second support member to rotate relative to the first support member. The first support member is driven to the adjustment assembly and is capable of moving relative to the seat frame under the drive of the adjustment assembly.

[0006] The aforementioned lumbar support adjustment device, through its driving component, moves the first support member relative to the seat frame, thereby adjusting the position of the separate parts of the seat at the occupant's waist, allowing the seat to meet the comfort needs of different individuals. By rotating the drive component, the rotation angle of the second support member relative to the first support member is adjusted, causing the second support member to adjust the lumbar support pad, thus providing either support or relaxation for the occupant's waist. This allows for more precise lumbar support adjustment, adapting to different passenger groups and improving overall comfort.

[0007] In one embodiment, the rotation drive assembly includes a base, a slider, a transmission assembly, and a first drive member. The base is connected to a first support member. The slider is slidably connected to the base. The transmission assembly is drively connected between the slider and the second support member. The first drive member is mounted on the base and drively connected to the slider, and is used to drive the slider to move relative to the base, thereby driving the second support member to rotate via the transmission assembly.

[0008] In one embodiment, there are two second support members, each connected to one side of the first support member. There are two transmission components, each corresponding to one of the two second support members; each transmission component includes a connecting rod and a first rotating connector. One end of the connecting rod is rotatably connected to a sliding member, and the other end of the connecting rod is connected to the corresponding second support member via the first rotating connector. The moving component further includes at least two second rotating connectors, each corresponding to one of the two second support members and connected between the first support member and the corresponding second support member. The rotation axis of the second rotating connector is parallel to and spaced apart from the rotation axis of the first rotating connector.

[0009] In one embodiment, the second support member includes a first plate and a second plate connected together, with a first side edge formed at the junction of the first plate and the second plate. The first side edge extends along the rotation axis of the second rotating connector, and the surfaces of the first plate and the second plate intersect on both sides of the first side edge. The side of the first plate away from the first side edge is connected to the first rotating connector.

[0010] In one embodiment, there are four second rotating connectors, each second support corresponding to two second rotating connectors respectively. Along the extension direction of the rotation axis of the second rotating connector, the two second rotating connectors are located at the two ends of the corresponding first side; and / or, along the extension direction of the rotation axis of the second rotating connector, the length of the first plate is a, and it has a first end and a second end opposite to each other, the distance between the first rotating connector and the first end is b, 0.4a≤b≤0.6a.

[0011] In one embodiment, the rotation drive assembly further includes a first lead screw rotatably mounted on the base, the first lead screw being threadedly connected to the slider and drivingly connected to the first drive member; and / or, the rotation drive assembly further includes a guide rod mounted on the base and passing through the slider.

[0012] In one embodiment, the adjusting assembly includes a second lead screw and a second drive member. One end of the second lead screw is threadedly connected to a first support member, and the other end of the second lead screw is drively connected to the second drive member.

[0013] According to another aspect of this application, a seat is provided, including a seat frame and a lumbar support adjustment device as described in any of the above embodiments, wherein the adjustment component is connected to the seat frame.

[0014] In one embodiment, the seat further includes a lumbar support cushion and a seat cushion. The lumbar support cushion is located on the same side of the first support member and the second support member, and is abutted against the first support member and the second support member, respectively. The seat cushion is abutted against the seat frame, and the seat cushion has a receiving space for accommodating the lumbar support cushion.

[0015] According to another aspect of this application, a vehicle is provided, including a body and a seat as described in the above embodiments, the seat being mounted on the body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a vehicle according to one embodiment of this application.

[0018] Figure 2 for Figure 1 A front view of the seat in the illustrated embodiment.

[0019] Figure 3 for Figure 1 A partial structural cross-sectional view of the lumbar support adjustment device in the illustrated embodiment (the lumbar support pad is also shown in the figure).

[0020] Figure 4 for Figure 3 A partial structural schematic diagram of the lumbar support adjustment device in the illustrated embodiment (the lumbar support pad is also shown in the figure, but the adjustment components are not shown).

[0021] Figure 5 for Figure 4 A partial structural schematic diagram of the lumbar support adjustment device in the illustrated embodiment from another perspective.

[0022] Figure 6 for Figure 3 A partial structural schematic diagram of the lumbar support adjustment device in the illustrated embodiment.

[0023] Figure 7 for Figure 3 A schematic diagram of the moving component in the illustrated embodiment.

[0024] Explanation of key component symbols: 1000 vehicles Body 1100 Seat 1200 Headrest 1210 Backrest 1220 Seat cushion 1230 Lumbar support adjustment device 100 Adjustment component 10 Second lead screw 11 Second drive component 12 Mobile component 20 First support component 21 Second support member 22 First plate 221 First end 2215 Second end 2216 Second plate 222 First side 223 Rotation drive assembly 23 Base 231 Slider 232 Transmission component 233 Link 2331 First rotating connector 2332 First drive component 234 First lead screw 235 Guide rod 236 Second rotating connector 24 Seat frame 200 Support rod 2101 Frame side plate 2102 300 lumbar support pad Seat cushion 400 Length direction X Width direction Y Z-axis height The rotating shaft m of the first rotating connector The rotating shaft n of the second rotating connector Flanking angles α, α' First position P1 Second position P2 The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Example Figure 1 This is a front view of a vehicle 1000 according to an embodiment of this application; Figure 2 for Figure 1 A front view of the seat 1200 in the illustrated embodiment; Figure 3 for Figure 1 Partial cross-sectional view of the lumbar support adjustment device 100 in the illustrated embodiment (lumbar support pad 300 is also shown in the figure). Figure 4 for Figure 3 A partial structural schematic diagram of the lumbar support adjustment device 100 in the illustrated embodiment (the lumbar support pad 300 is also shown in the figure, but the adjustment component 10 is not shown).

[0030] See Figure 1 This embodiment provides a vehicle 1000, including a body 1100 and a seat 1200. The seat 1200 is installed on the body 1100 to provide a comfortable and safe seating position for drivers and passengers.

[0031] See Figure 2 In this embodiment, the seat 1200 includes a seat frame 200, which is the core load-bearing and support structure of the seat 1200. Combined with... Figure 3 As shown, the seat 1200 also includes a lumbar support adjustment device 100, which is used to adjust the lumbar support of the seat 1200 for the occupant. The lumbar support adjustment device 100 includes an adjustment component 10 and a moving component 20. The adjustment component 10 is connected to the seat frame 200, such as... Figure 4 As shown, the movable assembly 20 includes a first support member 21 and a second support member 22 for supporting the waist of the driver or passenger. The first support member 21 is connected to the adjustment assembly 10 (see...). Figure 3 It is connected and can move relative to the seat frame 200 under the drive of the adjustment component 10. It should be noted that... Figure 2 Some parts of the structure are indicated by dashed lines to show the internal structure.

[0032] Thus, by driving the first support member 21, the adjustment component 10 moves the entire moving component 20 relative to the seat frame 200, thereby adjusting the position of the split portion of the seat 1200 at the occupant's waist, allowing the seat 1200 to meet the comfort needs of different groups. In use, the adjustment component 10 drives the first support member 21 to move in a direction parallel to the length direction X of the vehicle 1000, achieving fore-and-aft adjustment of the split portion of the seat 1200. It should be noted that the split portion of the seat 1200 refers to the part located at the occupant's waist and capable of moving together with the seat frame 200.

[0033] In some embodiments, such as Figure 2 As shown, the seat 1200 also includes a lumbar support cushion 300 (such as lumbar support foam) and a seat cushion 400 (such as seat foam). The seat cushion 400 is attached to the seat frame 200 and has a receiving space for accommodating the lumbar support cushion 300. Figure 4 As shown, the lumbar support cushion 300 is located on the same side of the first support member 21 and the two second support members 22, and is in contact with the first support member 21 and the two second support members 22 respectively. Thus, by separating the lumbar support cushion 300 from the seat cushion 400, the lumbar support cushion 300 can move relative to the seat cushion 400 along with the moving assembly 20, thereby forming a separate part of the seat frame 200 together with the moving assembly 20. The position of this separate part can be adjusted forward and backward under the drive of the adjustment assembly 10 to suit the needs of the occupant. In use, the lumbar support cushion 300 can be located on the side of the first support member 21 along the length X of the vehicle 1000, closer to the front of the vehicle, to provide comfortable support for the occupant, while the adjustment assembly 10 can be located on the side of the first support member 21 along the length X of the vehicle 1000, away from the front of the vehicle. It should be noted that... Figure 2 This is only used to illustrate the relative positions of the lumbar support adjustment device 100, the lumbar support pad 300, and the seat frame 200, and does not represent the actual structure of the seat 1200.

[0034] In some embodiments, the seat 1200 further includes a seat cover (not shown), which covers the lumbar support cushion 300 and is used to fix the lumbar support cushion 300 relative to the first support member 21 and the second support member 22, thereby ensuring that the lumbar support cushion 300 moves synchronously with the first support member 21 and the second support member 22.

[0035] In some embodiments, such as Figure 2 As shown, the seat frame 200 includes a backrest frame, a headrest frame, and a seat cushion frame (not shown). The backrest frame includes two frame side plates 2102 and a support rod 2101. The two frame side plates 2102 are spaced apart along the width direction Y of the vehicle 1000. The two ends of the support rod 2101 are connected to the two frame side plates 2102 respectively. Figure 3As shown, the support rod 2101 is connected to the adjustment assembly 10 to provide support for the adjustment assembly 10. It should be noted that... Figure 3 This is only used to illustrate the position of the support rod 2101 and the adjusting assembly 10 relative to the moving assembly 20, and does not represent the actual structure of the support rod 2101 and the adjusting assembly 10. Optionally, the support rod 2101 is welded to the two frame side plates 2102 respectively.

[0036] In some embodiments, the adjusting assembly 10 includes a second lead screw 11 and a second drive member 12 (such as a motor). One end of the second lead screw 11 is threadedly connected to the first support member 21, and the other end of the second lead screw 11 is driveably connected to the second drive member 12. This allows the second lead screw 11 to rotate under the drive of the second drive member 12, thereby causing the first support member 21 to move axially along the second lead screw 11. Optionally, the housing of the second drive member 12 is connected to the support rod 2101 by fasteners (such as bolts). The axial direction of the second lead screw 11 may be parallel to the length direction X of the vehicle 1000.

[0037] See Figure 4 As mentioned above, the lumbar support adjustment device 100 provided in this embodiment includes an adjustment component 10 and a moving component 20. The second support member 22 is rotatably connected to the first support member 21. The moving component 20 further includes a rotation drive component 23, which is drively connected to the second support member 22 and is used to drive the second support member 22 to rotate relative to the first support member 21.

[0038] The aforementioned lumbar support adjustment device 100 adjusts the rotation angle of the second support member 22 relative to the first support member 21 via the rotation drive assembly 23, causing the second support member 22 to drive the lumbar support cushion 300 to adjust, thereby clamping or relaxing the occupant's waist. This makes the lumbar support adjustment of the seat 1200 more precise, adaptable to different passengers, and improves riding comfort. In use, the second support member 22 is located on the side of the first support member 21 along the length X of the vehicle 1000, closer to the front of the vehicle.

[0039] Optionally, the included angle between the surfaces of the first support member 21 and the second support member 22 near the lumbar support pad 300 is the side wing angle α. The second support member 22 has a first position P1 and a second position P2 relative to the first support member 21, and the side wing angle α in the second position P2 is greater than the side wing angle α' in the first position P1. It should be noted that... Figure 4 The solid line indicates that the second support member 22 is in the first position P1, and the dashed line indicates that the second support member 22 is in the second position P2.

[0040] In some embodiments, the adjustment component 10 and the rotation drive component 23 are spaced apart along the height direction Z of the vehicle 1000.

[0041] Figure 5 for Figure 4 A partial structural schematic diagram of the lumbar support adjustment device 100 in the illustrated embodiment from another perspective. Figure 6 for Figure 3 A partial structural schematic diagram of the lumbar support adjustment device 100 in the illustrated embodiment.

[0042] In some embodiments, such as Figure 6 As shown, the rotation drive assembly 23 includes a base 231, a slider 232, a transmission assembly 233, and a first drive member 234 (see figure). Figure 5 (e.g., a motor). The base 231 is connected to the first support member 21. The sliding member 232 is slidably connected to the base 231. Figure 5 As shown, the transmission assembly 233 is driven between the sliding member 232 and the second support member 22. The first driving member 234 is mounted on the base 231 and driven to the sliding member 232. The first driving member 234 drives the sliding member 232 to move relative to the base 231, thereby causing the second support member 22 to rotate via the transmission assembly 233. In this way, the base 231 provides support and sliding space for the sliding member 232, improving the sliding stability of the sliding member 232.

[0043] In some embodiments, such as Figure 6 As shown, the rotation drive assembly 23 also includes a first lead screw 235, which is rotatably mounted on the base 231. The first lead screw 235 is threadedly connected to the sliding member 232 and to the first drive member 234 (see...). Figure 5 The transmission connection allows the slider to move along the first lead screw 235 when the first drive member 234 drives the first lead screw 235 to rotate relative to the base 231.

[0044] In some embodiments, the rotation drive assembly 23 further includes a guide rod 236, which is mounted on the base 231 and passes through the slider 232 to improve the stability of the slider 232 when it moves relative to the base 231. Optionally, there are two guide rods 236, which are parallel to and spaced apart from the axis of the first lead screw 235, with the first lead screw 235 located between the two guide rods 236.

[0045] In some embodiments, the rotation drive assembly 23 includes a connection structure (not shown) for connecting the first drive member 234 and the first lead screw 235. The connection structure can be directly connected to the output shaft of the first drive member 234 (through a coupling) or indirectly connected to the output shaft of the first drive member 234 (e.g., a gear or a timing belt).

[0046] Figure 7 for Figure 3 A schematic diagram of the moving component 20 in the illustrated embodiment.

[0047] In some embodiments, such as Figure 7 As shown, there are two second support members 22, each connected to one side of the first support member 21. There are two transmission assemblies 233, each corresponding to one of the two second support members 22. Each transmission assembly 233 includes a connecting rod 2331 and a first rotating connector 2332. One end of the connecting rod 2331 is rotatably connected to the sliding member 232, and the other end of the connecting rod 2331 is connected to the corresponding second support member 22 via the first rotating connector 2332. The moving assembly 20 also includes at least two second rotating connectors 24, each corresponding to one of the two second support members 22 and connected between the first support member 21 and the corresponding second support member 22. Figure 5 As shown, the rotation axis n of the second rotating connector 24 is parallel to and spaced apart from the rotation axis m of the first rotating connector 2332. This allows the connecting rod 2331 to have rotational degrees of freedom relative to the sliding member 232 and the second support member 22, respectively. The second support member 22 also has rotational degrees of freedom relative to both the connecting rod 2331 and the first support member 21, ensuring smooth adjustment of the rotation of the second support member 22 relative to the first support member 21. Furthermore, the first driving member 234 drives the two connecting rods 2331 to move together via the slider, achieving synchronous adjustment of the two second support members 22 by a single driving member. This saves on the number of driving members and the space occupied, and improves the synchronicity of the rotation of the two second support members 22.

[0048] Optionally, the first rotating connector 2332 (or the second rotating connector 24) includes a pivot shaft, which is connected to the connecting rod 2331 and the second support member 22 (or to the first support member 21 and the second support member 22) respectively via a shaft hole, thereby achieving a rotating connection. In other embodiments, the first rotating connector 2332 or the second rotating connector 24 may also employ other structures such as hinges to achieve a rotating connection.

[0049] It should be noted that, Figure 7 This is only used to illustrate the principle of the second support member 22 adjusting its angle under the drive of the first drive member 234, and does not represent the actual structure of the moving component 20. Figure 7 The bottom arrow illustrates the direction of movement of the slider 232 relative to the first support 21 under the drive of the first drive member 234. The two arrows above illustrate the rotation direction of the two second supports 22 under the drive of the two connecting rods 2331. That is, when the slider 232 moves toward the side closer to the first support 21, it drives the two connecting rods 2331 to open outward, thereby driving the side of the two second supports 22 away from the connecting rods 2331 to open outward.

[0050] In use, the two second support members 22 are located on both sides of the first support member 21 along the width direction Y of the vehicle 1000, and the two second support members 22 are arranged opposite to each other along the width direction Y of the vehicle 1000.

[0051] In some embodiments, such as Figure 5 As shown, the second support member 22 includes a first plate 221 and a second plate 222 connected together. A first side 223 is formed at the junction of the first plate 221 and the second plate 222. The first side 223 extends along the rotation axis n of the second rotating connector 24. The surfaces of the first plate 221 and the second plate 222 intersect on both sides of the first side 223. The side of the first plate 221 away from the first side 223 is connected to the first rotating connector 2332. This simplifies the structure of the second support member 22.

[0052] Optionally, the second support member 22 has an L-shaped cross-section perpendicular to the rotation axis n of the second rotating connector 24. The width of the first plate 221 is smaller than the width of the second plate 222 to save space occupied by the first plate 221 along the length direction X of the vehicle 1000. It should be noted that the width refers to the longitudinal dimension of the first plate 221 or the second plate 222 in the cross-section perpendicular to the rotation axis n of the second rotating connector 24.

[0053] In some embodiments, such as Figure 5 As shown, there are four second rotating connectors 24. Each second support 22 corresponds to two second rotating connectors 24. Along the extension direction of the rotation axis n of the second rotating connector 24, the two second rotating connectors 24 are located at the two ends of the corresponding first side 223, so as to improve the connection reliability between the second support 22 and the first support 21, as well as the stability of the rotation of the second support 22 relative to the first support 21.

[0054] In some embodiments, along the extension direction of the rotation axis n of the second rotating connector 24, the length of the first plate 221 is a, and it has a first end 2215 and a second end 2216 opposite to each other. The distance between the first rotating connector 2332 and the first end 2215 is b, 0.4a≤b≤0.6a, so that the first rotating connector 2332 is approximately located in the middle region between the first end 2215 and the second end 2216, thereby improving the stability of the connecting rod 2331 driving the second support member 22 to rotate.

[0055] The aforementioned lumbar support adjustment device 100 can respectively adjust the seat 1200 at the occupant's waist for forward and backward movement and for angle adjustment, and the forward and backward movement and angle adjustment are driven independently, making the two adjustments more direct and precise.

[0056] In some embodiments, the seat 1200 also includes a pressure sensor (not shown) disposed in the lumbar support cushion 300. The pressure sensor is used to transmit pressure information to the ECU (Electronic Control Unit) module. After analyzing the pressure, the ECU module outputs a motor signal (such as a Hall signal) to adjust the second drive member 12 and the first drive member 234 respectively to achieve precise adjustment.

[0057] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A lumbar support adjustment device, characterized in that, include: Adjustment components are used to connect the seat frame; as well as, A movable component includes a first support member, a second support member, and a rotation drive assembly. The second support member is rotatably connected to the first support member, and the rotation drive assembly is drively connected to the second support member for driving the second support member to rotate relative to the first support member. The first support member is tractively connected to the adjustment assembly and is capable of moving relative to the seat frame under the drive of the adjustment assembly.

2. The lumbar support adjustment device according to claim 1, characterized in that: The rotation drive assembly includes a base, a slider, a transmission assembly, and a first drive component; The base is connected to the first support member; The sliding element is slidably connected to the base; The transmission assembly is connected between the sliding member and the second support member. The first driving member is mounted on the base and is connected to the sliding member. The first driving member is used to drive the sliding member to move relative to the base, thereby driving the second support member to rotate through the transmission assembly.

3. The lumbar support adjustment device according to claim 2, characterized in that: There are two second support members, which are respectively connected to both sides of the first support member; There are two transmission components, each corresponding to one of the two second support members; each transmission component includes a connecting rod and a first rotating connector, one end of the connecting rod is rotatably connected to the sliding member, and the other end of the connecting rod is connected to the corresponding second support member through the first rotating connector; The movable component further includes at least two second rotating connectors, each corresponding to one of the two second supports and connected between the first support and the corresponding second support. The rotation axis of the second rotating connector is parallel to and spaced apart from the rotation axis of the first rotating connector.

4. The lumbar support adjustment device according to claim 3, characterized in that: The second support member includes a first plate and a second plate connected together. The junction of the first plate and the second plate forms a first side. The first side extends along the rotation axis of the second rotating connector. The surfaces of the first plate and the second plate intersect on both sides of the first side. The side of the first plate away from the first side is connected to the first rotating connector.

5. The lumbar support adjustment device according to claim 4, characterized in that: There are four second rotating connectors, and each second support corresponds to two second rotating connectors. Along the extension direction of the rotation axis of the second rotating connector, the two second rotating connectors are located at the two ends of the corresponding first side. And / or, Along the extension direction of the rotation axis of the second rotating connector, the length of the first plate is a, and it has a first end and a second end opposite to each other. The distance between the first rotating connector and the first end is b, where 0.4a≤b≤0.6a.

6. The lumbar support adjustment device according to claim 2, characterized in that: The rotation drive assembly further includes a first lead screw, which is rotatably mounted on the base. The first lead screw is threadedly connected to the sliding member and is also connected to the first drive member in a transmission manner. And / or, The rotation drive assembly further includes a guide rod, which is mounted on the base and passes through the sliding member.

7. The lumbar support adjustment device according to claim 1, characterized in that: The adjustment assembly includes a second lead screw and a second drive component; One end of the second lead screw is threadedly connected to the first support member, and the other end of the second lead screw is drivenly connected to the second drive member.

8. A type of seat, characterized in that, include: Seat frame; as well as, The lumbar support adjustment device as described in any one of claims 1 to 7, wherein the adjustment component is connected to the seat frame.

9. The seat according to claim 8, characterized in that: The seat also includes a lumbar support pad and a seat cushion; The lumbar support pad is located on the same side of the first support member and the second support member, and is in contact with the first support member and the second support member respectively; The seat cushion is attached to the seat frame, and the seat cushion has a receiving space for accommodating the lumbar support pad.

10. A vehicle, characterized in that, include: The car body; and, The seat as described in claim 8 or 9, wherein the seat is mounted on the vehicle body.

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