A car seat integrating functions of cushion rear lifting and backrest folding

Abstract

The utility model discloses an automobile seat of integrated cushion rear lifting and backrest turning flat function, the lower extreme of backrest assembly is rotatedly connected with the rear end of sitting frame skeleton through backrest angle adjuster, and cushion upper support assembly is arranged above sitting frame skeleton, and its front end is slidably connected with sitting frame skeleton, and can rotate around sitting frame skeleton, and its rear end is hinged with the rear end of angle adjuster connecting plate, and the front end of angle adjuster connecting plate is hinged with sitting frame skeleton through cushion angle adjuster, and cushion drive motor can drive angle adjuster connecting plate to rotate counterclockwise, and can drive cushion upper support assembly to lift the front end and rear end in turn in counterclockwise rotation process, and then integrally slides forward, and finally the rear end subsides, thereby providing space for backrest assembly turning flat, when backrest assembly turns flat backward, can drive only the rear end of cushion upper support assembly to lift through cushion drive motor, to eliminate the height difference between the two. The utility model discloses a set of structure, and simultaneously solves the problems of backrest turning flat interference and backrest turning flat backward height difference.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive seat that integrates seat cushion lifting and backrest flattening functions. Background Technology

[0002] As the automotive industry continues to develop, car seats, as an important component of car interiors, are receiving increasing attention from consumers for their versatility and comfort. Car seats not only need to provide basic support for passengers, but also need to meet the needs of different scenarios. For example, when it is necessary to expand interior space or achieve special seating posture adjustments, the seat cushion and backrest should have corresponding adjustment functions.

[0003] Traditional car seats have many limitations in achieving seat cushion and backrest adjustment functions. Taking the common backrest folding function as an example, when it is necessary to fold the backrest forward to increase cargo space or achieve a more comfortable reclining posture, the seat cushion and backrest of traditional seats are prone to interference due to the limitations of the seat cushion position and structure. This interference prevents the backrest from folding forward smoothly, resulting in the backrest not being able to recline completely and limiting the flexible use of interior space. After the backrest is folded back, a significant height difference can easily appear between the seat cushion and the backrest, which not only affects the overall aesthetics of the seat, but more importantly, reduces the comfort experience of the driver and passengers, and may lead to physical discomfort after prolonged use. However, existing seats cannot solve these two problems with a single mechanism; their structural design is complex and occupies a large amount of space. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention aims to provide a car seat that integrates the functions of rear seat cushion lifting and backrest folding, so as to realize the functions of rear seat cushion lifting and backrest folding through a single mechanism.

[0005] To achieve the above objectives, this utility model proposes a car seat integrating seat cushion lifting and backrest flattening functions, including a backrest assembly and a seat cushion assembly. The seat cushion assembly includes a seat frame, a seat cushion upper support assembly, and an adjuster connecting plate. The lower end of the backrest assembly is rotatably connected to the rear end of the seat frame via a backrest adjuster. The seat cushion upper support assembly is positioned above the seat frame, with its front end slidably connected to the seat frame and rotatable around it. Its rear end is hinged to the rear end of the adjuster connecting plate. The adjuster connecting plate extends obliquely upward from rear to front, and the adjuster connects... The front end of the seat is hinged to the seat frame via a seat cushion adjuster. The seat cushion adjuster is equipped with a seat cushion drive motor, which can drive the adjuster connecting plate to rotate counterclockwise. During the counterclockwise rotation of the seat cushion connecting plate driven by the seat cushion drive motor, the front and rear ends of the seat cushion upper support assembly are raised, then slide forward as a whole, and finally the rear end sinks, thus providing space for the backrest assembly to fold flat, allowing the backrest assembly to fold forward. When the backrest assembly is folded backward, the seat cushion drive motor can only drive the rear end of the seat cushion upper support assembly to rise, thereby eliminating the height difference between the seat cushion assembly and the backrest assembly.

[0006] In the above scheme: The front sides of the upper seat support assembly are each provided with downward-facing front support legs, arranged opposite each other. The front sides of the seat frame are each provided with forward-backward extending sliding grooves, arranged opposite each other. The lower ends of the two front support legs are slidably connected to the corresponding sliding grooves and can rotate around the grooves to achieve forward-backward sliding and rotational connection between the upper seat support assembly and the seat frame. When the front support legs slide to the frontmost position of the groove, i.e., when the upper seat support assembly reaches its front limit position, the upper seat support assembly has already achieved rear-end lifting and overall forward sliding. At this point, the angle adjuster connecting plate continuing to rotate counterclockwise can cause the upper seat support assembly to sink at the rear end. It should be noted that because the angle adjuster connecting plate performs circular motion within a certain angle range, it can cause the rear end of the upper seat support assembly to first experience lifting and then sinking.

[0007] In the above solution: The rear sides of the upper seat support assembly are each provided with a downward-facing rear support leg bracket, arranged opposite each other. The rear sides of the seat frame frame are each hinged to an adjuster connecting plate via a seat adjuster. The rear ends of the two adjuster connecting plates are respectively hinged to the lower ends of the corresponding rear support leg brackets. A flexible motion chain is formed between the seat adjuster, the adjuster connecting plate, and the rear support leg brackets. When the seat drive motor rotates the adjuster connecting plate, power can be precisely transmitted to the upper seat support assembly through this motion chain, causing it to move in a predetermined sequence: front and rear end lifting, overall forward sliding, and rear end sinking.

[0008] In the above solution: the two seat cushion adjusters are connected by a seat cushion synchronizing rod. The seat cushion drive motor is mounted on the seat cushion synchronizing rod and fixed to the seat frame. The seat cushion drive motor can drive the seat cushion synchronizing rod to rotate, thereby driving the seat cushion adjuster to run, and then driving the adjuster connecting plate to rotate. The structure is simple and easy to install, ensuring that the left and right sides of the two adjuster connecting plates are evenly stressed during the flipping process, and that one side does not flip too fast or too slow.

[0009] In the above solution: the lower ends of the backrest assembly are rotatably connected to the rear ends of the seat frame via backrest angle adjusters. The two backrest angle adjusters are connected by a backrest synchronization rod. A backrest drive motor is mounted on the synchronization rod and fixed to the backrest assembly. The drive motor drives the synchronization rod to rotate, thereby causing the backrest angle adjusters to operate and ultimately rotating the backrest assembly. When the drive motor rotates the synchronization rod, the backrest angle adjusters on both sides operate simultaneously and at the same speed, ensuring that the backrest assembly experiences uniform force on both sides during rotation, preventing one side from rotating too fast or too slow.

[0010] In the above solution, the lower end of the front support bracket is slidably and rotatably connected to the corresponding side groove by rivets or stepped bolts, which is simple in structure and easy to install.

[0011] The beneficial effects of this utility model are:

[0012] 1. The seat cushion drive motor rotates the adjusting plate counterclockwise, raising the front and rear ends of the seat cushion support assembly, then sliding it forward as a whole, and finally lowering the rear end. This provides space for the backrest to fold flat, overcoming the problem of traditional seats where the backrest cannot be fully folded down due to seat cushion position and structure limitations, and making flexible use of the vehicle's interior space. 2. When the backrest assembly is folded back, the seat cushion drive motor only needs to raise the rear end of the seat cushion support assembly, eliminating the height difference between the seat cushion assembly and the backrest assembly, improving the comfort experience for passengers. 3. Existing seats struggle to solve the above two problems with a single mechanism, and their structural design is complex and space-consuming. This seat, however, uses a relatively reasonable structure to simultaneously solve the problems of backrest folding interference and the height difference when the backrest is folded back, optimizing the seat structure design and reducing space occupation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention in the design phase.

[0014] Figure 2 This is a structural diagram of the seat cushion assembly.

[0015] Figure 3 This is a schematic diagram of the present invention in the backrest-folded-forward-flattened state.

[0016] Figure 4 This is a schematic diagram of the present invention in the backrest-folded-back flat state. Detailed Implementation

[0017] like Figure 1 As shown in Figure 4, a car seat with integrated functions of seat cushion lifting and backrest flattening is mainly composed of a backrest assembly 1 and a seat cushion assembly.

[0018] The seat cushion assembly includes a seat frame 2, a seat upper support assembly 3, and an adjuster connecting plate 4. The lower end of the backrest assembly 1 is rotatably connected to the rear end of the seat frame 2 via a backrest adjuster 5. The seat upper support assembly 3 is positioned above the seat frame 2, with its front end slidably connected to the seat frame 2 and capable of rotating around the seat frame 2. Its rear end is hinged to the rear end of the adjuster connecting plate 4. The adjuster connecting plate 4 extends obliquely upward from back to front, and its front end is hinged to the seat frame 2 via a seat cushion adjuster 6.

[0019] The seat adjuster 6 is equipped with a seat drive motor 7, which can drive the adjuster connecting plate 4 to rotate counterclockwise.

[0020] During the process of the seat cushion drive motor 7 driving the angle adjuster connecting plate 4 to rotate counterclockwise, it can drive the front and rear ends of the seat cushion upper bracket assembly 3 to rise, then slide forward as a whole, and finally sink the rear end, thereby providing space for the backrest assembly 1 to be folded flat, so that the backrest assembly 1 can be folded forward flat.

[0021] When the backrest assembly 1 is tilted back, the seat cushion drive motor 7 can lift only the rear end of the seat cushion support assembly 3 to eliminate the height difference between the seat cushion assembly and the backrest assembly 1.

[0022] Ideally, the front sides of the upper seat support assembly 3 are provided with downward-facing front support legs 8, with the two front support legs 8 arranged opposite each other. The front sides of the seat frame 2 are provided with forward-backward extending sliding grooves 9, also arranged opposite each other. The lower ends of the two front support legs 8 are slidably connected to the corresponding sliding grooves 9 and can rotate around the grooves 9, thus achieving forward-backward sliding and rotational connection between the upper seat support assembly 3 and the seat frame 2. When the front support legs 8 slide to the frontmost position of the sliding groove 9, i.e., when the upper seat support assembly 3 reaches its front limit position, the upper seat support assembly 3 has already achieved rear-end lifting and overall forward sliding. At this point, the angle adjuster connecting plate 4 continuing to rotate counterclockwise can cause the upper seat support assembly 3 to sink at the rear end. It should be noted that because the angle adjuster connecting plate 4 performs circular motion within a certain angle range, it can cause the rear end of the upper seat support assembly 3 to first experience lifting and then sinking.

[0023] Ideally, the rear sides of the seat cushion upper support assembly 3 are provided with downward-facing rear support legs 10, with the two rear support legs 10 arranged facing each other. The rear sides of the seat frame 2 are hinged to the seat cushion angle adjuster connecting plates 4 via the seat cushion angle adjuster 6, and the rear ends of the two angle adjuster connecting plates 4 are respectively hinged to the lower ends of the corresponding rear support legs 10. The seat cushion angle adjuster 6, the angle adjuster connecting plates 4, and the rear support legs 10 form a flexible motion chain. When the seat cushion drive motor 7 drives the angle adjuster connecting plates 4 to rotate, the power can be accurately transmitted to the seat cushion upper support assembly 3 through this motion chain, so that it moves in a predetermined sequence of front and rear end lifting, overall forward sliding, and rear end sinking.

[0024] Ideally, the two seat cushion adjusters 6 are connected by a seat cushion synchronizing rod, and the seat cushion drive motor 7 is mounted on the seat cushion synchronizing rod and fixed to the seat frame 2. The seat cushion drive motor 7 can drive the seat cushion synchronizing rod to rotate, thereby driving the seat cushion adjuster 6 to run, and then driving the adjuster connecting plate 4 to rotate. The structure is simple and easy to install.

[0025] Ideally, the lower ends of the backrest assembly 1 are rotatably connected to the rear ends of the seat frame 2 via backrest angle adjusters 5. The two backrest angle adjusters 5 are connected by a backrest synchronizing rod, on which a backrest drive motor is mounted. The backrest drive motor is fixed to the backrest assembly 1 and drives the backrest synchronizing rod to rotate, thereby driving the backrest angle adjusters 5 to run, and ultimately causing the backrest assembly 1 to rotate. When the backrest drive motor drives the backrest synchronizing rod to rotate, the backrest angle adjusters 5 on both sides will run simultaneously and at the same speed, ensuring that the backrest assembly 1 is subjected to uniform force on both sides during rotation, preventing one side from rotating too fast or too slow.

[0026] Ideally, the lower end of the front support bracket 8 is slidably and rotatably connected to the corresponding side groove 9 by rivets or stepped bolts, which is simple in structure and easy to install.

Claims

1. A car seat integrating seat cushion lifting and backrest flattening functions, comprising a backrest assembly (1) and a seat cushion assembly, characterized in that: The seat cushion assembly includes a seat frame frame (2), a seat upper support assembly (3), and an adjuster connecting plate (4). The lower end of the backrest assembly (1) is rotatably connected to the rear end of the seat frame frame (2) via a backrest adjuster (5). The seat upper support assembly (3) is positioned above the seat frame frame (2), with its front end slidably connected to the seat frame frame (2) and able to rotate around the seat frame frame (2). Its rear end is hinged to the rear end of the adjuster connecting plate (4). The adjuster connecting plate (4) extends obliquely upward from back to front, and its front end is hinged to the seat frame frame (2) via a seat cushion adjuster (6). The seat adjustment mechanism (6) is equipped with a seat drive motor (7), which can drive the seat adjustment mechanism connecting plate (4) to rotate counterclockwise. During the process of the seat drive motor (7) driving the seat adjustment mechanism connecting plate (4) to rotate counterclockwise, it can drive the front and rear ends of the seat upper support assembly (3) to rise, then slide forward as a whole, and finally sink the rear end, thereby providing space for the backrest assembly (1) to be flattened, so that the backrest assembly (1) can be flattened forward. When the backrest assembly (1) is flattened backward, the seat drive motor (7) can drive only the rear end of the seat upper support assembly (3) to rise, so as to eliminate the height difference between the seat cushion assembly and the backrest assembly (1).

2. The car seat with integrated seat cushion lifting and backrest folding functions as described in claim 1, characterized in that: The front sides of the seat cushion upper support assembly (3) are provided with front support legs (8), and the two front support legs (8) are arranged opposite each other. The front sides of the seat frame frame (2) are provided with sliding grooves (9) extending forward and backward, and the two sliding grooves (9) are arranged opposite each other. The lower ends of the two front support legs (8) are slidably connected to the corresponding sliding grooves (9) and can rotate around the sliding grooves (9) to realize the front and rear sliding and rotational connection between the seat cushion upper support assembly (3) and the seat frame frame (2).

3. The car seat with integrated seat cushion lifting and backrest folding functions as described in claim 1, characterized in that: The rear support brackets (10) are provided on both sides of the rear end of the seat cushion upper support assembly (3). The two rear support brackets (10) are arranged opposite each other. The rear ends of the seat frame frame (2) are hinged to the adjustment plate (4) through the seat cushion adjustment plate (6). The rear ends of the two adjustment plate (4) are respectively hinged to the lower end of the corresponding rear support bracket (10).

4. The car seat with integrated seat cushion lifting and backrest folding functions as described in claim 3, characterized in that: The two seat cushion adjusters (6) are connected by a seat cushion synchronizing rod. The seat cushion drive motor (7) is mounted on the seat cushion synchronizing rod and fixed to the seat frame frame (2). The seat cushion drive motor (7) can drive the seat cushion synchronizing rod to rotate, thereby driving the seat cushion adjuster (6) to run, and then driving the adjuster connecting plate (4) to rotate.

5. The car seat with integrated seat cushion lifting and backrest folding functions as described in claim 1, characterized in that: The lower ends of the backrest assembly (1) are rotatably connected to the rear ends of the seat frame (2) via backrest angle adjusters (5). The two backrest angle adjusters (5) are connected by a backrest synchronizing rod. A backrest drive motor is mounted on the backrest synchronizing rod. The backrest drive motor is fixed on the backrest assembly (1). The backrest drive motor can drive the backrest synchronizing rod to rotate, thereby driving the backrest angle adjusters (5) to run, and then driving the backrest assembly (1) to flip.

6. The car seat with integrated seat cushion lifting and backrest folding functions according to claim 2, characterized in that: The lower end of the front support bracket (8) is slidably and rotatably connected to the corresponding side groove (9) by rivets or stepped bolts.

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