Automobile seat capable of lying on one side and turning over backrest to be flat

Abstract

The utility model discloses an automobile seat capable of lying on the side and turning the backrest flat, the lower end of a backrest upper frame is hinged between a pair of backrest bases, the lower end of a front connecting rod assembly is hinged between the front ends of a pair of cushion bases, and the two sides of the front end of a cushion upper frame are respectively hinged to the front connecting rod assembly. The two sides of the rear end of the cushion upper frame are hinged to the two cushion bases respectively and can slide front and back along the cushion bases, the push rod motor is hinged between the middle of the front connecting rod assembly and the rear end of the cushion upper frame, and when the backrest upper frame overturns backwards, the push rod motor drives the cushion upper frame to slide forwards, so that when the front end of the cushion upper frame is lifted upwards, the cushion upper frame can slide forwards and backwards. The automobile seat can realize a side lying function; when the push rod motor drives the seat cushion upper frame to slide forwards to the foremost position, and the seat cushion upper frame dives, the backrest upper frame can be turned forwards to be flat, so that the function of turning the backrest flat is achieved. According to the utility model, not only can the comfort requirement of people in a side lying state be met, but also the large space requirement of the luggage case in a state that the backrest is turned flat can be met.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive seat that can recline to the side and has a flat backrest. Background Technology

[0002] Car seats are an important part of car interiors, and as people's demands for comfort, functionality, and space in cars continue to increase, there is a growing demand for rear-seat reclining seats to enhance comfort. Reclining requires a reclining backrest, while the seat cushion needs to be raised at the front to improve comfort. Simultaneously, the demand for trunk space is also increasing, often achieved by folding the backrest flat to be flush with the rear of the car body. However, folding the backrest flat interferes with the seat cushion, requiring the seat cushion to be able to recline to avoid this interference. These two functions, due to their independent structures, conflict in terms of space requirements, resulting in significant structural limitations and making it difficult to guarantee comfort in the reclining position. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a car seat that can be reclined and has its backrest folded flat, which can not only meet the comfort requirements of people in the reclining position, but also meet the large space requirements for luggage storage when the backrest is folded flat.

[0004] To achieve the above objectives, this utility model proposes a car seat that can recline to the side and has a flat backrest, comprising a backrest frame and a seat cushion frame. The backrest frame includes an upper backrest frame, the lower end of which is hinged to a pair of backrest bases via an adjuster. The backrest bases are fixed to the vehicle floor. The seat cushion frame includes an upper seat cushion frame, a push rod motor, and a front linkage assembly. The lower end of the front linkage assembly is hinged to the front ends of the pair of seat cushion bases. The seat cushion bases are fixed to the vehicle floor. The two front ends of the upper seat cushion frame are respectively hinged to the upper ends of the front linkage assembly. The rear ends of the upper cushion frame are hinged to the two seat cushion bases on both sides and can slide back and forth along the seat cushion bases. The push rod motor is hinged between the middle of the front linkage assembly and the rear end of the upper cushion frame. When the upper backrest frame flips backward from its designed position, the push rod motor drives the upper cushion frame to slide forward along the seat cushion base, causing the front end of the upper cushion frame to rise, thus enabling the car seat to recline. When the push rod motor drives the upper cushion frame to slide forward along the seat cushion base to its foremost position, causing the upper cushion frame to sink, the upper backrest frame can be flipped forward to achieve the backrest flattening function of the car seat.

[0005] In the above solution: the front linkage assembly includes two front linkages arranged opposite each other on the left and right, and a seat cushion synchronization rod connecting the middle of the two front linkages. The lower ends of the two front linkages are respectively hinged to the front ends of the two seat cushion bases. The upper ends of the seat cushion upper frame are respectively welded to the two lugs on both sides of the front end, and the upper ends of the two front linkages are respectively hinged to the two lugs. The seat cushion synchronization rod connects the middle of the two front linkages, which can effectively ensure that the two front linkages maintain a high degree of synchronization during movement. When the push rod motor drives the seat cushion upper frame to slide, the two front linkages can move simultaneously and with equal amplitude, thereby making the front end of the seat cushion upper frame rise or fall smoothly.

[0006] In the above scheme: a motor mounting bracket is welded to the seat cushion synchronization rod; a push rod fixing bracket is welded downwards to the rear end of the seat cushion upper frame; the motor end of the push rod motor is hinged to the motor mounting bracket; and the push rod end of the push rod motor is hinged to the push rod fixing bracket. The push rod motor typically includes a motor, a lead screw coaxially connected to the motor output shaft, and a push rod threaded onto the lead screw. The motor end of the push rod motor is the motor end, and the push rod end of the push rod motor is the push rod end.

[0007] When the push rod motor is working, the motor drives the lead screw to rotate, causing the push rod to move linearly along the lead screw, thereby precisely pushing or pulling the upper frame of the seat cushion, realizing the upper frame of the seat cushion to slide back and forth along the seat cushion base, and thus realizing actions such as lifting or lowering the front end of the upper frame of the seat cushion.

[0008] In the above design: both seat cushion bases are provided with front-to-back extending grooves, and sliding brackets are welded downwards on both sides of the rear end of the upper seat cushion frame. The two sliding brackets are slidably and rotatably connected to the two side grooves by step bolts. This design allows the upper seat cushion frame to adjust its angle with the seat cushion base as needed during sliding. When the seat is reclined, the front end of the upper seat cushion frame rises, and the rear end slides and rotates appropriately within the grooves via the sliding brackets to adapt to changes in the angle of the backrest tilt, providing reasonable support for all parts of the passenger's body. During the backrest folding down, the front end of the upper seat cushion frame lowers, and the rear end also adjusts the overall posture of the seat cushion through sliding and rotation, providing suitable space for the backrest to fold down and meeting the functional needs of the seat in different postures.

[0009] In the above solution: the lower ends of the upper backrest frame are hinged to two backrest bases via angle adjusters, and the two angle adjusters are connected by a backrest synchronizing rod. An angle adjuster motor is mounted on the backrest synchronizing rod and is fixed to the upper backrest frame with mounting bolts. The angle adjuster motor provides power for backrest angle adjustment; by precisely controlling the motor's rotation direction and speed, the tilt angle of the upper backrest frame can be flexibly adjusted.

[0010] In the above solution: the upper end of the front connecting rod and the lug, the lower end of the front connecting rod and the seat base, and the push rod end of the push rod motor and the push rod fixing bracket are all hinged by stepped bolts. The motor end of the push rod motor and the motor mounting bracket are hinged by the motor fixing shaft. The structure is simple and easy to assemble.

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

[0012] 1. The coordinated movement of the upper backrest frame tilting backward and the upper seat cushion frame lifting upward achieves the seat's side-lying function, greatly improving passenger comfort while resting in the vehicle and satisfying people's pursuit of a comfortable side-lying posture, making long journeys or short naps in the car more pleasant. 2. The coordinated design of the upper seat cushion frame moving forward and sinking down, along with the upper backrest frame flattening, avoids interference between the backrest and seat cushion, achieving the backrest flattening function. This effectively increases luggage space, meeting the needs of vehicles with ample luggage or items, enhancing the practicality and functionality of the car seat. 3. The separate design of the backrest and seat cushion structures allows them to move independently without interference, ensuring the accuracy and stability of their respective functions. 4. The movements of the upper backrest frame flipping and the upper seat cushion frame sliding are linked and controlled by a mechanical structure. No complicated operating procedures are required; passengers can easily switch between side-lying and backrest flattening functions with simple operations (such as controlling the angle adjuster and push rod motor), making it convenient and easy to use. Attached Figure Description

[0013] Figure 1 This is a diagram showing the seating layout.

[0014] Figure 2 This is a diagram showing the design location of the seat frame.

[0015] Figure 3 This is a side view of the seat design position.

[0016] Figure 4 This is a side view of the seat frame design.

[0017] Figure 5 This is a side view of the seat in a reclining position.

[0018] Figure 6 This is a side view of the seat frame in a reclining position.

[0019] Figure 7 This is a side view of the seat with its backrest folding flat.

[0020] Figure 8 This is a side view of the seat frame enabling the backrest to fold flat.

[0021] Figure 9 This is a side view of the seat cushion frame design.

[0022] Figure 10 This is a side view of the design principle of the seat cushion frame.

[0023] Figure 11 This is a side view of the seat frame in a reclining position.

[0024] Figure 12 This is a side view diagram of the seat cushion frame in the lying position.

[0025] Figure 13 This is a side view of the seat frame in its lowered position.

[0026] Figure 14 This is a side view diagram illustrating the principle of the seat cushion frame's downward position.

[0027] Figure 15 It's an exploded view of the backrest frame.

[0028] Figure 16 This is an exploded view of the seat cushion frame. Detailed Implementation

[0029] like Figure 1 As shown in Figure 16, a car seat that can recline to the side and has its backrest folded flat is mainly composed of a backrest frame and a seat cushion frame. The backrest frame includes an upper backrest frame 1, the lower end of which is hinged between a pair of backrest bases 6 via an adjuster 2. The backrest bases 6 are fixed to the vehicle floor.

[0030] The seat frame includes an upper seat frame 7, a push rod motor 8, and a front linkage assembly 9. The lower end of the front linkage assembly 9 is hinged between the front ends of a pair of seat bases 10. The seat bases 10 are fixed to the vehicle floor. The front ends of the upper seat frame 7 are hinged to the upper ends of the front linkage assembly 9, and the rear ends of the upper seat frame 7 are hinged to the two seat bases 10, and can slide back and forth along the seat bases 10.

[0031] The push rod motor 8 is hinged between the middle of the front linkage assembly 9 and the rear end of the upper seat frame 7. When the upper backrest frame 1 is flipped backward from its designed position, specifically by 15° to 45°, the push rod motor 8 drives the upper seat frame 7 to slide forward along the seat base 10, so that when the front end of the upper seat frame 7 is lifted, the car seat can achieve the side-lying function.

[0032] When the push rod motor 8 drives the upper frame 7 of the seat cushion to slide forward along the seat cushion base 10 to the foremost position, so that when the upper frame 7 of the seat cushion sinks down, the upper frame 1 of the backrest can be flipped forward to achieve the backrest flipping function of the car seat.

[0033] Specifically, when the upper seat frame 7 is in its designed position, the angle β between the upper seat frame 7 and the front connecting rod 91 is an obtuse angle. When the upper seat frame 7 slides forward to its foremost position, the angle β between the upper seat frame 7 and the front connecting rod 91 becomes an acute angle. This structural design allows the front end of the upper seat frame 7 to first rise and then descend as it slides forward along the seat base 10. The change in the angle β between the upper seat frame 7 and the front connecting rod 91 from obtuse to acute is continuous and gradual, ensuring the smoothness of the rising and descending movements of the front end of the upper seat frame 7.

[0034] Preferably, the front linkage assembly 9 includes two front linkages 91 arranged opposite each other on the left and right, and a seat cushion synchronizing rod 92 connecting the middle of the two front linkages 91. The lower ends of the two front linkages 91 are respectively hinged to the front ends of the two seat cushion bases 10. The front ends of the upper seat frame 7 are respectively welded with lugs, and the upper ends of the two front linkages 91 are respectively hinged to the two lugs. The seat cushion synchronizing rod 92 connects the middle of the two front linkages 91, which can effectively ensure that the two front linkages 91 maintain a high degree of synchronization during movement. When the push rod motor 8 drives the upper seat frame 7 to slide, the two front linkages 91 can move simultaneously and with equal amplitude, thereby making the front end of the upper seat frame 7 rise or fall smoothly.

[0035] Ideally, a motor mounting bracket is welded to the seat cushion synchronization rod 92, and a push rod fixing bracket is welded downwards to the rear end of the seat cushion upper frame 7. The motor end of the push rod motor 8 is hinged to the motor mounting bracket, and the push rod end of the push rod motor 8 is hinged to the push rod fixing bracket. The push rod motor 8 typically includes a motor, a lead screw coaxially connected to the motor output shaft, and a push rod threaded onto the lead screw. The motor end of the push rod motor 8 is the motor end, and the push rod end of the push rod motor 8 is the push rod end.

[0036] When the push rod motor 8 is working, the motor drives the lead screw to rotate, causing the push rod to move linearly along the lead screw, thereby accurately pushing or pulling the upper frame 7 of the seat cushion, so that the upper frame 7 of the seat cushion slides back and forth along the seat cushion base 10, thereby realizing actions such as lifting or lowering the front end of the upper frame 7 of the seat cushion.

[0037] Ideally, both seat cushion bases 10 are provided with sliding grooves 13 extending forward and backward. Sliding brackets are welded downwards to both sides of the rear end of the upper seat cushion frame 7. These sliding brackets are slidably and rotatably connected to the sliding grooves 13 via step bolts 11. This design allows the upper seat cushion frame 7 to adjust its angle relative to the seat cushion base 10 as needed during sliding. When the seat is reclined, the front end of the upper seat cushion frame 7 rises, and the rear end slides and rotates appropriately within the sliding grooves 13 via the sliding brackets to adapt to changes in the backrest's tilt angle, providing reasonable support for all parts of the passenger's body. During the backrest folding down, the front end of the upper seat cushion frame 7 lowers, and the rear end also adjusts the overall posture of the seat cushion through sliding and rotation, providing suitable space for the backrest to fold down and meeting the functional needs of the seat in different postures.

[0038] Ideally, the lower ends of the upper backrest frame 1 are hinged to the two backrest bases 6 via angle adjusters 2. The two angle adjusters 2 are connected by a backrest synchronizing rod 5, which is equipped with an angle adjuster motor 3. The angle adjuster motor 3 is fixed to the upper backrest frame 1 by mounting bolts 4. The angle adjuster motor 3 provides power support for adjusting the backrest angle. By precisely controlling the motor's rotation direction and speed, the tilting angle of the upper backrest frame 1 can be flexibly adjusted.

[0039] Ideally, the upper end of the front connecting rod 91 and the lug, the lower end of the front connecting rod 91 and the seat base 10, and the push rod end of the push rod motor 8 and the push rod fixing bracket are all hinged by stepped bolts 11, and the motor end of the push rod motor 8 and the motor mounting bracket are hinged by the motor fixing shaft 12. The structure is simple and the assembly is convenient.

Claims

1. A car seat that can recline to its side and has its backrest folded flat, comprising a backrest frame and a seat cushion frame, the backrest frame comprising an upper backrest frame (1), the lower end of the upper backrest frame (1) being hinged between a pair of backrest bases (6) via an adjuster (2), the backrest bases (6) being fixed to the vehicle floor, characterized in that: The seat frame includes an upper seat frame (7), a push rod motor (8), and a front linkage assembly (9). The lower end of the front linkage assembly (9) is hinged between the front ends of a pair of seat bases (10). The seat bases (10) are fixed to the vehicle floor. The front ends of the upper seat frame (7) are respectively hinged to the upper ends of the front linkage assembly (9), and the rear ends of the upper seat frame (7) are respectively hinged to the two seat bases (10) and can slide back and forth along the seat bases (10). The push rod motor (8) is hinged to the front linkage assembly. (9) is located between the middle part and the rear end of the upper frame (7) of the seat cushion; when the upper frame (1) of the backrest flips backward, the push rod motor (8) drives the upper frame (7) of the seat cushion to slide forward along the seat cushion base (10), so that the front end of the upper frame (7) of the seat cushion is raised, the car seat can achieve the side-lying function; when the push rod motor (8) drives the upper frame (7) of the seat cushion to slide forward along the seat cushion base (10) to the foremost position, so that the upper frame (7) of the seat cushion is lowered, the upper frame (1) of the backrest can be flipped forward to achieve the backrest flipping function of the car seat.

2. The car seat with reclining and flat backrest according to claim 1, characterized in that: The front linkage assembly (9) includes two front linkages (91) arranged opposite to each other on the left and right, and a seat cushion synchronization rod (92) connected between the middle of the two front linkages (91). The lower ends of the two front linkages (91) are respectively hinged to the front ends of the two seat cushion bases (10). The front ends of the upper frame (7) of the seat cushion are respectively welded with lugs, and the upper ends of the two front linkages (91) are respectively hinged to the two lugs.

3. The car seat that can recline and has its backrest folded flat according to claim 2, characterized in that: A motor mounting bracket is welded to the seat cushion synchronization rod (92), and a push rod fixing bracket is welded downward to the rear end of the seat cushion upper frame (7). The motor end of the push rod motor (8) is hinged to the motor mounting bracket, and the push rod end of the push rod motor (8) is hinged to the push rod fixing bracket.

4. The car seat that can recline and has its backrest folded flat according to claim 1, characterized in that: Both of the seat bases (10) are provided with sliding grooves (13) extending forward and backward. The rear sides of the upper frame (7) of the seat are respectively welded with sliding brackets. The two sliding brackets are respectively slidably and rotatably connected to the sliding grooves (13) on both sides by step bolts (11).

5. The car seat that can recline and has its backrest folded flat according to claim 1, characterized in that: The lower ends of the upper backrest frame (1) are hinged to the two backrest bases (6) by the angle adjusters (2) respectively. The two angle adjusters (2) are connected by the backrest synchronization rod (5). The backrest synchronization rod (5) is equipped with an angle adjuster motor (3). The angle adjuster motor (3) is fixed to the upper backrest frame (1) by the mounting bolts (4).

6. The car seat that can recline and has its backrest folded flat according to claim 3, characterized in that: The upper end of the front connecting rod (91) is hinged to the lug, the lower end of the front connecting rod (91) is hinged to the seat base (10), and the push rod end of the push rod motor (8) is hinged to the push rod fixing bracket by step bolts (11). The motor end of the push rod motor (8) is hinged to the motor mounting bracket by the motor fixing shaft (12).

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