Car seat with adjustable rear seat cushion

Abstract

This utility model relates to the technical field of vehicle seats, specifically a car seat with a liftable rear end. It includes a seat cushion frame and a seat cushion covering the frame. The seat cushion frame includes a rear cross tube. The car seat further includes a lower support member disposed above the rear cross tube and an airbag disposed on the lower support member. The airbag is inflatable to lift the rear end of the seat cushion, thus providing support to the occupant's lower back when lying down, thereby improving comfort. This utility model utilizes the expansion of the airbag to support the rear end of the seat cushion, providing occupant support, particularly for the lumbar region of a reclining occupant, thus enhancing comfort.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle seats, and specifically to a car seat with a liftable rear end of the seat cushion. Background Technology

[0002] When car seats are designed to provide thigh support, the seat cushion is tilted to a certain extent. This results in a height difference between the lower end of the backrest and the rear end of the seat cushion when the seat back is folded down. As a result, when the occupant lies down, their lower back is unsupported, affecting comfort. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a car seat with a liftable rear seat cushion, which solves the problem that the existing car seats have a height difference between the lower end of the backrest and the rear end of the seat cushion after the backrest is folded down, causing the occupant's waist to be suspended without support, thus affecting comfort.

[0004] The technical solution to achieve the above objectives is:

[0005] This utility model provides a car seat with a liftable rear end, including a seat cushion frame and a seat cushion covered on the seat cushion frame. The seat cushion frame includes a rear cross tube, and the car seat further includes:

[0006] A lower support member is provided above the rear horizontal tube;

[0007] An airbag is provided on the lower support member, the airbag can be inflated to lift the rear end of the seat cushion so that the rear end of the seat cushion can provide support for the occupant.

[0008] A further improvement of this utility model of a car seat with a liftable rear end cushion is that it also includes an upper support member placed on the air bag, the upper support member being located between the air bag and the seat cushion.

[0009] A further improvement of this utility model of a car seat with a liftable rear end is that the upper support member is rotatably connected to the lower support member on the side near the front end of the seat cushion, so that the upper support member can be driven to rotate relative to the lower support member when the air bag is inflated.

[0010] A further improvement of this utility model of a car seat with a liftable rear end cushion is that it also includes a mounting plate disposed at the bottom of the air bag, the mounting plate being fixedly connected to the lower support member;

[0011] The upper support member is rotatably connected to the mounting plate on the side near the front end of the seat cushion.

[0012] A further improvement of this utility model of a car seat with a liftable rear end cushion is that one of the mounting plate and the upper support member is provided with a card seat.

[0013] The other of the mounting plate and the upper support is provided with a connecting shaft corresponding to the card slot;

[0014] The connecting shaft is mounted on the card holder, and the connecting shaft can rotate relative to the card holder.

[0015] A further improvement of this utility model of a car seat with a liftable rear end is that the upper support member and the air bag are bonded together with adhesive.

[0016] A further improvement of this utility model of a car seat with a liftable rear end is that the upper support is fixedly connected to the seat cushion by fasteners and / or adhesive.

[0017] A further improvement of this utility model of a car seat with a liftable rear end is that the upper surface of the upper support member is in contact with the lower surface of the seat cushion, and the upper support member is made of stiff felt.

[0018] A further improvement of this utility model of a car seat with a liftable rear end cushion is that the cushion frame also includes a suspension.

[0019] The lower support member is disposed on the suspension, the lower surface of the lower support member is in contact with the suspension, the front end of the lower support member is fixedly connected to the suspension, and the rear end of the lower support member is clamped and fixed between the seat cushion and the rear cross tube.

[0020] A further improvement of this utility model of a car seat with a liftable rear end cushion is that the top of the lower support member forms a mounting surface.

[0021] The air bag is fixedly connected to the mounting surface;

[0022] The mounting surface is inclined and faces the rear end of the seat cushion.

[0023] A further improvement of this utility model of a car seat with a liftable rear end is that, after the air bag is inflated, a first arc surface near the rear end of the seat cushion and a second arc surface away from the rear end of the seat cushion are formed on the air bag, and the arc length of the first arc surface is greater than the arc length of the second arc surface.

[0024] A further improvement of this utility model of a car seat with a liftable rear end cushion is that the cushion is provided with a transverse suspension groove.

[0025] The lower support is located on the rear side of the transverse clamping groove.

[0026] A further improvement of this utility model of a car seat with a liftable rear end cushion is that the lower support member is provided with a slot, and the slot on the lower support member is fitted onto the rear cross tube.

[0027] The seat frame also includes a suspension, and the lower support is attached to the suspension.

[0028] The beneficial effects of this utility model of a car seat with a liftable rear end cushion are as follows:

[0029] This invention relates to a car seat with a liftable rear end. A lower support member is installed on the seat cushion frame to support an airbag, providing a mounting base for the airbag. The expansion of the airbag lifts the rear end of the seat cushion, ensuring it is in a supported position and providing lumbar support for a reclining occupant, thus improving comfort. The lower support member is located above the rear cross tube; when the backrest is in its designed position, part of the lower support member is below the backrest, minimizing its impact on seat cushion comfort. Furthermore, both the lower support member and the airbag are located inside the car seat, resulting in a clean appearance and eliminating the need for additional wiring.

[0030] The present invention relates to a car seat with a liftable rear end cushion. The top of the air bag is provided with a support member, which provides good support for the rear end of the cushion and enhances comfort through surface contact. Attached Figure Description

[0031] Figure 1 This is a side view of the car seat with the rear end of the seat cushion that can be raised, with the backrest assembly in a vertical position (or the designed position).

[0032] Figure 2 for Figure 1 A magnified view of the rear end of the middle seat cushion.

[0033] Figure 3 This is a side view of the car seat with the rear of the seat cushion liftable in the backrest assembly in the reclined state.

[0034] Figure 4 for Figure 3 A magnified view of the rear end of the middle seat cushion.

[0035] Figure 5 This is a partially enlarged schematic diagram of the lower support sleeve of the liftable rear end of the car seat cushion at the rear horizontal tube.

[0036] Figure 6 This is an exploded disassembly diagram of the car seat with a liftable rear end, as described in this utility model.

[0037] Figure 7This is a schematic diagram showing the connection between the air bag, support component, and mounting plate in the car seat with a liftable rear end cushion according to this utility model.

[0038] Figure 8 for Figure 7 Side view of the structure shown.

[0039] Figure 9 This is a side view of the structure connecting the air bag, support, and mounting plate in the liftable rear end of the car seat cushion of this utility model after the air bag has been inflated.

[0040] Figure 10 This is an exploded exploded view of the connection structure between the air bag, support component, and mounting plate in the liftable rear end of the car seat cushion of this utility model.

[0041] Figure 11 This is a schematic diagram of the structure of the air bag, support, and mounting plate of the car seat cushion that can be lifted at the rear end, installed on the lower support.

[0042] Figure 12 This is a schematic diagram of the structure of the seat cushion in a car seat with a liftable rear end, as described in this utility model.

[0043] Figure 13 This is a structural schematic diagram of another preferred embodiment of the car seat with a liftable rear end of the seat cushion according to the present invention.

[0044] Figure 14 for Figure 13 A schematic diagram of the seat cushion frame and lower support member in the illustrated embodiment.

[0045] Figure 15 for Figure 13 A structural diagram of the middle air bag, supporting components, and lower supporting components.

[0046] Figure 16 for Figure 15 A three-dimensional structural diagram of the lower support member and the support member.

[0047] Figure 17 for Figure 13 A schematic diagram of the connection between the seat cushion and the support member in the illustrated embodiment.

[0048] Figure 18 for Figure 13 A schematic diagram of the backrest assembly.

[0049] Figure 19 for Figure 18 A magnified view of the rear end of the middle seat cushion.

[0050] Figure 20 for Figure 18 A schematic diagram of the structure of the gas bag after it has been inflated.

[0051] Figure 21 for Figure 20 A magnified view of the rear end of the middle seat cushion.

[0052] Figure 22 This is a schematic diagram of the structure of a car seat with a liftable rear end, where the rear end of the seat cushion is lifted and supported when the backrest assembly is in a reclined state.

[0053] Figure 23 This is a schematic diagram of the structure of a car seat backrest assembly in the prior art, showing a height difference between the lower end of the backrest assembly and the rear end of the seat cushion when the backrest assembly is in the reclined state.

[0054] Explanation of reference numerals in the attached figures:

[0055] 11-Seat cushion frame; 111-Rear cross tube; 12-Seat cushion; 12a-Rear end; 12b-Front end; 121-Transverse suspension groove; 122-Fixing hole; 123-Vertical suspension groove; 13-Seat cover; 14-Backrest assembly; 15-Suspension; 16-Seat basin;

[0056] 21-Lower support; 211-Mounting surface; 212-Slot; 213-Side; 214-Transition section; 215-Mounting hole; 22-Air bag; 221-First arc surface; 222-Second arc surface; 23-Mounting plate; 231-Card holder; 24-Upper support; 241-Connecting shaft; 242-Connecting hole; 25-Fastener. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] See Figure 1 and Figure 3 This invention provides a car seat with a liftable rear end, addressing the problem in existing car seats where, after the backrest assembly 14 is folded down, a height difference exists between the lower end of the backrest assembly 14 and the rear end 12a of the seat cushion 12, causing the occupant's lumbar region to be unsupported and affecting comfort. This invention features a lower support member 21 on the seat cushion frame 11, with an air bag 22 mounted on the lower support member 21. This air bag 22 is inflatable, lifting the rear end 12a of the seat cushion 12, thus providing lumbar support for the reclining occupant and improving comfort. The structure of this car seat with a liftable rear end is described below with reference to the accompanying drawings.

[0059] See Figure 1 This image shows a side view of a car seat with a liftable rear seat cushion, as described above, with the backrest assembly in a vertical position. (See also...) Figure 2 It shows Figure 1 A magnified view of the rear end of the center seat cushion. (See attached image) Figure 3 This image shows a side view of a car seat with a liftable rear seat cushion in the backrest assembly folded down. The following image is in conjunction with... Figures 1 to 3 This invention describes a car seat with a liftable rear end cushion.

[0060] like Figures 1 to 3 As shown, the car seat with a liftable rear end of the seat cushion of this utility model includes a seat cushion frame 11 and a seat cushion 12 covering the seat cushion frame 11. The seat cushion frame 11 includes a rear cross tube 111. The car seat also includes a lower support member 21 and an air bag 22. The lower support member 21 is located above the rear cross tube 111 on the seat cushion frame 11, and the lower support member 21 is located near the rear end 12a of the seat cushion 12. The air bag 22 is located on the lower support member 21, combined with... Figure 4 As shown, the airbag 22 can be inflated to lift the rear end 12a of the seat cushion 12, so that the rear end 12a of the seat cushion 12 is in a supported state, which can provide support for the occupant.

[0061] The lower support member 21 is located above the rear cross tube 111. When the backrest assembly 14 is in its designed position, a portion of the lower support member 21 can be positioned below the backrest assembly 14, thereby reducing the impact on the comfort of the seat cushion 12. Figure 3 As shown, when the rear end 12a of the seat cushion 12 is in a supported state, the setting height of the rear end 12a of the seat cushion 12 is close to or equal to the setting height of the lower end of the backrest assembly 14, thus reducing the height difference and providing lumbar support for the occupant lying down, thereby enhancing comfort.

[0062] In one specific embodiment of this utility model, such as Figure 6 and Figure 11 As shown, the top of the lower support member 21 has a mounting surface 211, which is a flat surface, and the air bag 22 is fixedly connected to the mounting surface 211.

[0063] The airbag 22 has an inflatable space inside. When it is not inflated, the airbag 22 is in a deflated state. When it is inflated, the airbag 22 is in an expanded state. The mounting surface 211 of the lower support member 21 provides a mounting base for the airbag 22, so that when the airbag 22 expands, it expands upward based on the mounting surface 211 of the lower support member 21, thereby raising the rear end 12a of the seat cushion 12 and providing lumbar support for the occupant who is lying down.

[0064] Furthermore, the air bag 22 is fixedly connected to the mounting surface 211 of the lower support member 21 by adhesive. Preferably, the bottom of the air bag 22 is glued to the mounting surface 211 by adhesive.

[0065] In another preferred embodiment, a fixing part is provided on one side of the air bag 22, which is fixedly connected to the lower support member 21 by fasteners such as bolts, screws, and screws.

[0066] Furthermore, such as Figure 5 As shown, the lower support member 21 is mounted on the seat cushion frame 11. In this state, the mounting surface 211 on the lower support member 21 is inclined. The height of the side of the mounting surface 211 near the rear end 12a of the seat cushion 12 is lower than the height of the side away from the rear end 12a of the seat cushion 12. The mounting surface 211 is positioned towards the rear end 12a of the seat cushion 12. The inclined mounting surface 211 allows the lower support member 21 to avoid the backrest assembly 14 when the car seat backrest assembly 14 is in the designed position. When the backrest assembly 14 is in the reclined position, the air bag 22 inflates to reduce the height difference between the end of the seat cushion 12 and the end of the backrest assembly 14.

[0067] In one specific embodiment of this utility model, such as Figures 7 to 10 As shown, it also includes an upper support member 24 placed above the air bag 22, located between the air bag 22 and the seat cushion 12. The upper support member 24 serves to increase the support surface, providing good support for the rear end of the seat cushion.

[0068] In a preferred embodiment, the upper support 24 can be fixedly connected to the seat cushion 12, for example, by adhesive bonding.

[0069] Furthermore, the upper support member 24 is rotatably connected to the lower support member 21 on the side near the front end 12b of the seat cushion 12. When the air bag 22 is inflated, the air bag 22 pushes the upper support member 24, causing the side of the upper support member 24 near the rear end 12a of the seat cushion 12 to rotate upward around the rotatable connection, thereby pushing the rear end 12a of the seat cushion 12 upward, thus raising the rear end 12a of the seat cushion 12. Preferably, a retaining seat is provided on one of the lower support member 21 and the upper support member 24, and a connecting shaft is provided on the other of the lower support member 21 and the upper support member 24 corresponding to the retaining seat. The connecting shaft is engaged with the retaining seat and can rotate relative to the retaining seat.

[0070] Furthermore, it also includes a mounting plate 23 located at the bottom of the air bag 21, which is fixedly connected to the lower support member 21; the upper support member 24 is rotatably connected to the mounting plate 23 on the side near the front end 12b of the seat cushion 12.

[0071] The air bag 22 is located between the upper support member 24 and the mounting plate 23. The upper support member 24 and the mounting plate 23 clamp the air bag 22. When the air bag 22 is inflated, it can push the upper support member 24 upward, so that the upper support member 24 can rotate around the rotating connection. The upper support member 24 then pushes the rear end 12a of the seat cushion 12 upward, thereby raising the rear end 12a.

[0072] Furthermore, a retaining seat 231 is provided on one of the mounting plate 23 and the upper support member 24; a connecting shaft 241 corresponding to the retaining seat 231 is provided on the other of the mounting plate 23 and the upper support member 24. The connecting shaft 241 is engaged with the retaining seat 231 and can rotate relative to the retaining seat 231. Specifically, a notch is provided on the side of the retaining seat 231 near the rear end 12a of the seat cushion 12. The connecting shaft 241 is engaged into the notch and can rotate freely within the notch. The retaining seat 231 has a certain degree of deformability and can engage with the connecting shaft 241.

[0073] Furthermore, combined with Figure 11 As shown, when a mounting surface 211 is formed on the top of the lower support member 21, the mounting plate 23 is placed on the mounting surface 211, and the mounting plate 23 is then fixedly connected to the lower support member 21. The mounting surface 211 is preferably a plane, and the mounting plate 23 is also a plane plate.

[0074] The mounting plate 23 and the lower support 21 can be bonded and fixed together with adhesive, or they can be fixed together with fasteners 25 such as bolts, screws and screws.

[0075] The air bag 22 and the mounting plate 23 can be bonded and fixed together with adhesive, or they can be fixed together with fasteners 25 such as bolts, screws and bolts.

[0076] The air bag 22 and the upper support 24 can be fixed together by adhesive.

[0077] In one specific embodiment of this utility model, such as Figure 9 As shown, after the airbag 22 is inflated, a first arc surface 221 is formed on the airbag 22 near the rear end 12a of the seat cushion 12, and a second arc surface 222 is formed near the front end 12b of the seat cushion 12 or away from the rear end 12a of the seat cushion relative to the first arc surface 221. The arc length L1 of the first arc surface 221 is greater than the arc length L2 of the second arc surface 222. In this way, after the airbag 22 is inflated, it can raise the rear end 12a of the seat cushion 12 to a certain height through the higher rear part.

[0078] In one specific embodiment of this utility model, such as Figure 2 and Figure 5 As shown, the seat cushion 12 is provided with a transverse suspension groove 121; the lower support member 21 is located on the rear side of the transverse suspension groove 121.

[0079] Seat cushion 12 has a foam structure, combined with Figure 6 and Figure 12 As shown, a cover 13 is also provided on the seat cushion 12, and a transverse tightening groove 121 is used to connect the cover 13. Multiple longitudinal tightening grooves 123 are also provided on the seat cushion 12. Figure 12 In the example shown, the seat cushion 12 is provided with one transverse suspension groove 121 and two longitudinal suspension grooves 123. The transverse suspension groove 121 and the two longitudinal suspension grooves 123 are connected in a U-shape. When setting the lower support member 21, the lower support member 21 is set behind the transverse suspension groove 121 on the side of the seat cushion 12 near the backrest assembly 14. Setting it behind the transverse suspension groove 121 avoids the occupant's sitting position on the seat cushion 12, preventing the sharp corners of the lower support member 21 from contacting the occupant's buttocks, thus preventing the buttocks from being pressed against the seat. Figure 1 As shown, when the backrest assembly 14 is in the design position or in the comfort adjustment position, the lower support 21 and the air bag 22 are located below the backrest assembly 14, thus avoiding the seating area of ​​the occupant's buttocks.

[0080] In one specific embodiment of this utility model, such as Figure 6 As shown, the seat frame 11 includes a rear cross tube 111; the lower support member 21 is provided with a slot 212, which is fitted onto the rear cross tube 111. Preferably, the slot 212 is located at one end of the bottom of the lower support member 21, and the other end of the bottom of the lower support member 21 is attached to the suspension 15 on the seat frame 11.

[0081] In one specific embodiment of this utility model, such as Figure 11 and Figure 2 As shown, a transition portion 214 is provided between the top surface (i.e., mounting surface 211) of the lower support member 21 and the side surface 213 of the lower support member 21 near the front end 12b of the seat cushion 12. The transition portion 214 is a slope or an arc surface.

[0082] In one specific embodiment of this utility model, the car seat is provided with an inflation and deflation structure consisting of an air pump, air pipes, etc. The inflation and deflation structure can be used to inflate and deflate the air bag 22. When it is necessary to raise the rear end 12a of the seat cushion 12, the inflation and deflation structure is used to inflate the air bag 22 to raise the rear end 12a; when it is not necessary to raise the rear end 12a of the seat cushion 12, the inflation and deflation structure is used to deflate the air bag 22, and the rear end 12a returns to its original state after the air bag 22 is no longer supporting it.

[0083] In one specific embodiment of this utility model, the lower support member 21 is a rigid foam structure. The upper support member 24 and the mounting plate 24 are plastic plates or metal plates.

[0084] In another preferred embodiment, the lower support member 21 is fitted to the suspension 15, and the upper support member 24 is fitted to the seat cushion 12. The upper support member 24 and the lower support member 21 are made of hard felt, which can meet the support strength requirements, and is easy to fit into irregular shapes and fits the opposite part. It also has the characteristics of low noise.

[0085] In one specific embodiment of this utility model, such as Figures 13 to 16 As shown, the lower support member 21 and air bag 22 are also suitable for low-block seats. The lower support member 21 is mounted on the seat cushion frame 11, and the air bag 22 is mounted on the lower support member 21. The shapes of the lower support member 21 and air bag 22 can be adapted to the shape of the rear structure of the seat cushion frame 11. The seat cushion frame 11 includes a rear cross tube 111, on which a suspension 15 is hung. The suspension 15 is located inside the seat cushion frame 11. A seat basin 16 is mounted on the front side of the seat cushion frame 11, and the front end of the suspension 15 is connected to the rear end of the seat basin 16. The lower support member 21 and the upper surface of the suspension 15 are fitted together. The air bag 22 and the lower support member 21 can be fixed together with adhesive. The lower support member 21 and air bag 22 have the characteristic of occupying little space.

[0086] like Figure 14 and Figure 16 As shown, the lower support member 21 is provided with a mounting hole 215. Self-tapping screws and other fasteners are inserted into the mounting hole 215 of the lower support member 21 to connect with the suspension 15. The side of the lower support member 21 away from the mounting hole 215 is clamped and fixed between the seat cushion 12 and the rear cross tube 111.

[0087] like Figure 16 and Figure 17 As shown, it also includes an upper support member 24 disposed on the air bag 22. The upper support member 24 is fixedly connected to the seat cushion 12 by fasteners or adhesive. When connected by fasteners, the upper support member 24 has a connecting hole 242, and the seat cushion 12 has a fixing hole 122 corresponding to the connecting hole 242. The upper support member 24 is connected and fixed to the seat cushion 12 by fasteners such as self-tapping screws passing through the connecting hole 242 and the fixing hole 122. When fixed by adhesive, the upper surface of the upper support member 24 is in contact with the lower surface of the seat cushion 12. The side of the upper support member 24 away from the connecting hole 242 is clamped and fixed to the rear cross tube 111 by the seat cushion 12. Optionally, the upper support member 24 is bonded and fixed to the upper surface of the air bag 22 by adhesive.

[0088] The upper support 24 is preferably made of stiff felt.

[0089] like Figures 18 to 21 The diagram shows the structure of the airbag 22 in both its deflated and inflated states. The airbag 22 and the lower support 21 together form a small-sized mechanism that occupies little space and can be applied to low-block seats.

[0090] like Figure 23 As shown, this illustrates a prior art automotive seat backrest assembly in a reclined state, where a height difference exists between the rear end of the seat cushion and the lower end of the backrest assembly. Figure 23 The area circled in red indicates that this region does not provide lumbar support when lying flat, thus affecting comfort. Figure 22 As shown, the technical solution of this utility model is that when the backrest assembly is in the reclined state, the air bag inflates and raises the rear end of the seat cushion, so that the rear end of the seat cushion provides lumbar support and improves the comfort when lying flat.

[0091] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A car seat with a liftable rear end, comprising a seat cushion frame (11) and a seat cushion (12) covering the seat cushion frame (11), wherein the seat cushion frame (11) includes a rear cross tube (111), characterized in that, The car seat also includes: A lower support member (21) is provided above the rear horizontal tube (111); An air bag (22) is provided on the lower support (21), the air bag (22) can be inflated to lift the rear end (12a) of the seat cushion (12) so that the rear end (12a) of the seat cushion (12) can provide support for the occupant.

2. The car seat with a liftable rear end as described in claim 1, characterized in that, It also includes an upper support (24) placed on the air bag (22), the upper support (24) being located between the air bag (22) and the seat cushion (12).

3. The car seat with a liftable rear end as described in claim 2, characterized in that, The upper support (24) is rotatably connected to the lower support (21) on the side near the front end (12b) of the seat cushion (12), so that the upper support (24) can be driven to rotate relative to the lower support (21) when the air bag is inflated.

4. The car seat with a liftable rear end as described in claim 3, characterized in that, It also includes a mounting plate (23) located at the bottom of the air bag (22), the mounting plate (23) being fixedly connected to the lower support member (21); The upper support (24) is rotatably connected to the mounting plate (23) on the side near the front end (12b) of the seat cushion (12).

5. The car seat with a liftable rear end as described in claim 4, characterized in that, One of the mounting plate (23) and the upper support member (24) is provided with a mounting bracket (231); The other of the mounting plate (23) and the upper support (24) is provided with a connecting shaft (241) corresponding to the card holder (231); The connecting shaft (241) is mounted on the card holder (231), and the connecting shaft (241) can rotate relative to the card holder (231).

6. The car seat with a liftable rear end as described in claim 2, characterized in that, The upper support (24) is bonded to the air bag (22) with adhesive.

7. The car seat with a liftable rear end as described in claim 2, characterized in that, The upper support (24) is fixedly connected to the seat cushion (12) by fasteners and / or adhesive.

8. The car seat with a liftable rear end as described in claim 7, characterized in that, The upper surface of the upper support member (24) is in contact with the lower surface of the seat cushion (12), and the upper support member (24) is a hard felt.

9. The car seat with a liftable rear end as described in claim 1, characterized in that, The seat frame (11) also includes a suspension (15); The lower support member (21) is disposed on the suspension (15), the lower surface of the lower support member (21) is in contact with the suspension (15), the front end of the lower support member (21) is fixedly connected to the suspension (15), and the rear end of the lower support member (21) is clamped and fixed between the seat cushion (12) and the rear cross tube (111).

10. The car seat with a liftable rear end as described in claim 1, characterized in that, The top of the lower support member (21) forms a mounting surface (211); The air bag (22) is fixedly connected to the mounting surface (211); The mounting surface is inclined and faces the rear end (12a) of the seat cushion (12).

11. The car seat with a liftable rear end as described in claim 1, characterized in that, After the air bag (22) is inflated, a first arc surface (221) is formed on the air bag (22) near the rear end (12a) of the seat cushion (12) and a second arc surface (222) away from the rear end (12a) of the seat cushion (12). The arc length of the first arc surface (221) is greater than the arc length of the second arc surface (222).

12. The car seat with a liftable rear end as described in claim 1, characterized in that, The seat cushion (12) is provided with a transverse suspension groove (121); The lower support (21) is located on the rear side of the transverse lifting groove (121).

13. The car seat with a liftable rear end as described in claim 1, characterized in that, The lower support member (21) is provided with a slot (212), and the slot (212) on the lower support member (21) is fitted onto the rear horizontal tube (111); The seat frame (11) also includes a suspension (15), and the lower support (21) rests on the suspension (15).

Images