Two-row folding seat for seven-seat vehicle

Abstract

The utility model relates to the technical field of automobile seats, in particular to a two-row folding seat for a seven-seat vehicle, which comprises a seat cushion support, the seat cushion support is matched on a slide way of a carriage floor through a sliding mechanism, a front seat cushion is fixedly arranged at the front end of the seat cushion support, and a first hinge seat is arranged in the middle of the seat cushion support corresponding to the rear of the front seat cushion; the waist turning frame is of an L structure, one end of the bottom of the waist turning frame is in hinged fit with the first hinge seat, a rear cushion corresponding to the front cushion is arranged at the bottom of the waist turning frame, and a lower back cushion is arranged at the rear of the waist turning frame; the upper back cushion is arranged at the top of the waist turning frame, and a headrest is arranged at the top end of the upper back cushion; the seat cushion support can drive the whole two-row seats to slide forwards along the sliding ways, meanwhile, the waist overturning frame drives the rear seat cushion and the whole rear backrest to overturn forwards, and therefore the width of a passage for passengers in the third row to get on and off the bus is increased, and convenience is improved for the passengers in the third row.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a second-row folding seat for a seven-seater vehicle. Background Technology

[0002] Due to the size limitations of 7-seater SUVs, legroom in the third row is cramped, especially in a 2+3+2 seating layout. Third-row passengers need to use a handle to move the second-row seats forward and tilt the backrests forward to widen the passageway when getting in and out. However, the forward movement of the second-row seats is limited by the length of the track, and the backrest hinge structure and folding space also limit the reclining angle of the second-row seats. Therefore, getting in and out of the third row remains inconvenient. Utility Model Content

[0003] This utility model provides a second-row folding seat for a seven-seater vehicle. Its seat cushion bracket can slide the entire second-row seat forward along the slide rail, while the lumbar folding bracket can also cause the rear seat cushion and the entire backrest to fold forward, thereby increasing the width of the passage for third-row passengers to get in and out of the vehicle and improving the convenience of third-row passengers.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a second-row folding seat for a seven-seater vehicle, comprising: a seat cushion bracket, which is fitted onto a slide rail on the vehicle floor via a sliding mechanism, and a front seat cushion is fixedly provided at the front end of the seat cushion bracket, and a first hinge seat is provided at the middle of the seat cushion bracket corresponding to the rear of the front seat cushion; a lumbar folding frame, which is an L-shaped structure and is hinged to the first hinge seat at one end of its bottom, and a rear seat cushion corresponding to the front seat cushion is provided at the bottom of the lumbar folding frame, and a lower backrest is provided at the rear of the lumbar folding frame; an upper backrest, which is disposed at the top of the lumbar folding frame, and a headrest is provided at the top of the upper backrest; and a locking mechanism, which is disposed at the rear end of the lumbar folding frame and cooperates with the rear end of the slide rail, and a control handle that is linked to the locking mechanism is provided on one side of the lumbar folding frame.

[0005] Preferably, the top of the waist-turning frame is provided with a second hinge seat, and the upper cushion is provided with side frames on both sides, with the bottom end of each side frame hinged to the second hinge seat; and the waist-turning frame is also provided with a synchronization mechanism connecting the cushion support and the side frames.

[0006] Preferably, the synchronization mechanism includes a first sprocket fixedly mounted on the first hinge seat, a second sprocket fixedly mounted on the bottom end of the side frame, and a composite sprocket engaged with the bottom tail end of the waist flipping frame via a rotating shaft; it also includes a first chain engaged between the first sprocket and the composite sprocket, and a second chain engaged between the composite sprocket and the second sprocket.

[0007] Preferably, the upper cushion is tilted forward relative to the lower cushion; the diameter of the second sprocket is smaller than the diameter of the first sprocket.

[0008] Preferably, the locking mechanism includes a hanging ring fixedly disposed at the tail end of the slide, and a locking block disposed at the bottom of the waist-mounted tilting frame and cooperating with the hanging ring; the control handle is linked to the locking block via a pull cable.

[0009] Preferably, the back of the lower cushion is covered with a tabletop.

[0010] The beneficial effects of this invention are as follows: When third-row passengers get on or off, the locking mechanism can be unlocked by operating the control handle. At this time, the seat cushion bracket can slide forward along the slide rail, causing the entire second-row seat to slide forward. Simultaneously, the lumbar folding frame can cause the rear seat cushion and the entire backrest to flip forward, thereby increasing the width of the aisle for third-row passengers. After the third-row passengers have finished getting on or off, the operator pushes the folded second-row seat backward. When the seat cushion bracket slides to the rear stop point along the slide rail, the lumbar folding frame is pushed backward to flip it backward until the locking mechanism and the rear end of the slide rail are locked again, thus satisfying the seating requirements of the second-row passengers. Since the control handle is located on one side of the lumbar folding frame, it is easy for third-row passengers to operate actively, ensuring their ease of use. The lumbar support and side frame enable the folding function of the second-row seat backs. When the lumbar support is folded forward, the side frame, under the action of the synchronization mechanism, drives the upper backrest to fold backward, thus avoiding the problem that the backrest cannot be fully folded forward after the second-row seats are moved forward as a whole. This allows the upper backrest to fold backward, avoiding interference with the front seats, thereby further increasing the width of the aisle for third-row passengers. When the second-row seats are in the seated position, the upper and lower backrests form an angle, conforming to ergonomic design and improving seating comfort. In the folded-down state, the side frame allows the upper backrest to have a larger folding angle, thus avoiding interference with the front seats and ensuring that the lumbar support can fold down smoothly. In addition, when the second-row seats are folded forward, the angle between the lumbar support and the seat cushion support limits the back of the lower backrest to a horizontal position. At this time, the second-row seats can be used to place items via the table, providing a more spacious and comfortable space for the third-row seats, as well as a work and entertainment environment. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the second-row seats of this utility model in their seating configuration.

[0013] Figure 2 This is a schematic diagram of the final folding process of the second-row seats of this utility model;

[0014] Figure 3 This is a schematic diagram of the synchronization mechanism inside the waist-mounted flipping frame of this utility model.

[0015] In the diagram: 1. Seat cushion support; 2. Slide rail; 3. Front seat cushion; 4. First hinge seat; 5. Lumbar support tilting frame; 6. Rear seat cushion; 7. Lower backrest cushion; 8. Upper backrest cushion; 9. Headrest; 10. Control handle; 11. Second hinge seat; 12. Side frame; 13. First sprocket; 14. Second sprocket; 15. Composite sprocket; 16. First chain; 17. Second chain; 18. Hanging ring; 19. Locking block; 20. Tabletop. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] according to Figure 1 , Figure 2As shown, a second-row folding seat for a seven-seater vehicle includes: a seat cushion bracket 1, which is mounted on a slide rail 2 on the vehicle floor via a sliding mechanism, and a front seat cushion 3 is fixedly mounted at the front end of the seat cushion bracket 1. A first hinge seat 4 is located at the middle of the seat cushion bracket 1 corresponding to the rear of the front seat cushion 3; a lumbar folding frame 5, which has an L-shaped structure and is hinged to the first hinge seat 4 at one end of its bottom. A rear seat cushion 6 corresponding to the front seat cushion 3 is located at the bottom of the lumbar folding frame 5, and a lower backrest 7 is located at the rear of the lumbar folding frame 5; an upper backrest 8, which is located at the top of the lumbar folding frame 5, and a headrest 9 is located at the top of the upper backrest 8; and a locking mechanism, which is located at the rear end of the lumbar folding frame 5 and engages with the rear end of the slide rail 2. A control handle 10 that is linked to the locking mechanism is located on one side of the lumbar folding frame 5.

[0018] With the above setup, when third-row passengers get on and off, the locking mechanism can be unlocked by operating the control handle 10. At this time, the seat cushion bracket 1 can slide forward along the slide rail 2, causing the entire second-row seat to slide forward. Simultaneously, the lumbar support tilt bracket 5 will tilt forward, causing the rear seat cushion 6 and the entire backrest to tilt forward, thereby increasing the width of the passage for third-row passengers to get on and off. After the third-row passengers have finished getting on and off, the operator pushes the folded second-row seat backward. When the seat cushion bracket 1 slides to the rear stop point along the slide rail 2, the lumbar support tilt bracket 5 is pushed backward to tilt backward until the locking mechanism and the rear end of the slide rail 2 are locked again, thus satisfying the seating requirements of the second-row passengers. Since the control handle 10 is located on one side of the lumbar support tilt bracket 5, it is easy for third-row passengers to operate actively, ensuring the convenience of operation for third-row passengers.

[0019] according to Figure 3 As shown, the waist-turning frame 5 has a second hinge seat 11 at its top, and side frames 12 are respectively provided on both sides of the upper cushion 8. The bottom ends of each side frame 12 are hinged to the second hinge seat 11. The waist-turning frame 5 also has a synchronization mechanism connecting the cushion support 1 and the side frames 12. The synchronization mechanism includes a first sprocket 13 fixedly mounted on the first hinge seat 4, a second sprocket 14 fixedly mounted on the bottom end of the side frame 12, and a composite sprocket 15 connected to the bottom tail end of the waist-turning frame 5 via a rotating shaft. It also includes a first chain 16 connected between the first sprocket 13 and the composite sprocket 15, and a second chain 17 connected between the composite sprocket 15 and the second sprocket 14.

[0020] This structure enables the folding function of the second-row seat back. When the lumbar folding frame 5 is flipped forward, the side frame 12, under the action of the synchronization mechanism, drives the upper backrest 8 to flip backward, thereby avoiding the problem that the backrest cannot be fully folded forward after the second-row seats are moved forward as a whole. The upper backrest 8 avoids interference with the front seats by flipping backward, thereby further increasing the width of the passage for third-row passengers to get in and out.

[0021] Furthermore, the upper cushion is tilted forward relative to the lower cushion; the diameter of the second sprocket 14 is smaller than the diameter of the first sprocket 13.

[0022] With this setting, the upper backrest 8 and lower backrest 7 of the second-row seats form an angle when the seats are in use, which conforms to ergonomic design and improves seating comfort. When the seats are flipped and folded, the side frame 12 allows the upper backrest 8 to have a larger flip angle, thereby avoiding interference with the front seats and ensuring that the lumbar support frame 5 can flip smoothly to the bottom.

[0023] The locking mechanism includes a hanging ring 18 fixedly installed at the tail end of the slide 2, and a locking block 19 installed at the bottom of the waist flip frame 5 and cooperating with the hanging ring 18. The locking block 19 adopts an existing tail box lock module product. The control handle 10 is linked to the locking block 19 through a pull cable, so the unlocking action of the locking block 19 can be easily triggered by the control handle 10.

[0024] As an improvement, the lower backrest 7 is covered with a table 20. Therefore, when the second-row seats are folded forward, the angle between the lumbar folding bracket 5 and the seat cushion support 1 limits the back of the lower backrest 7 to a horizontal state. At this time, the second-row seats can be used to place items through the table 20, and provide a more spacious and comfortable space for the third-row seats as well as a work and entertainment environment.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A two-row foldable seat for a seven-seater vehicle, characterized in that, include: A seat support (1) is mounted on a slide rail (2) on the carriage floor via a sliding mechanism. A front seat cushion (3) is fixedly mounted at the front end of the seat support (1). A first hinge seat (4) is provided in the middle of the seat support (1) behind the front seat cushion (3). The waist flip frame (5) is an L-shaped structure and is hinged to the first hinge seat (4) at one end of its bottom. The bottom of the waist flip frame (5) is provided with a rear seat cushion (6) corresponding to the front seat cushion (3), and the rear of the waist flip frame (5) is provided with a lower back cushion (7). Upper cushion (8), the upper cushion (8) is disposed on the top of the waist flip frame (5), and the top of the upper cushion (8) is provided with a headrest (9); A locking mechanism is provided at the rear end of the waist flip frame (5) and cooperates with the rear end of the slide (2). A control handle (10) is provided on one side of the waist flip frame (5) to cooperate with the locking mechanism.

2. The double row fold flat seat for a seven passenger vehicle of claim 1, wherein: The waist flip frame (5) is provided with a second hinge seat (11) at the top, and the upper backrest (8) is provided with side frames (12) on both sides respectively. The bottom end of each side frame (12) is hinged to the second hinge seat (11); and the waist flip frame (5) is also provided with a synchronization mechanism connecting the seat support (1) and the side frame (12).

3. The second-row folding seat for a seven-seater vehicle according to claim 2, characterized in that: The synchronization mechanism includes a first sprocket (13) fixedly mounted on the first hinge seat (4), a second sprocket (14) fixedly mounted on the bottom end of the side frame (12), and a composite sprocket (15) connected to the bottom end of the waist flipping frame (5) via a rotating shaft; it also includes a first chain (16) connected between the first sprocket (13) and the composite sprocket (15), and a second chain (17) connected between the composite sprocket (15) and the second sprocket (14).

4. The second-row folding seat for a seven-seater vehicle according to claim 3, characterized in that: The upper cushion is tilted forward relative to the lower cushion; the diameter of the second sprocket (14) is smaller than the diameter of the first sprocket (13).

5. The second-row folding seat for a seven-seater vehicle according to claim 1, characterized in that: The locking mechanism includes a hanging ring (18) fixedly installed at the tail end of the slide (2) and a locking block (19) installed at the bottom of the waist flip frame (5) and cooperating with the hanging ring (18); the control handle (10) is linked to the locking block (19) by a pull line.

6. The second-row folding seat for a seven-seater vehicle according to claim 1, characterized in that: The lower cushion (7) is covered with a tabletop (20) on its back.

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