Rear-row seat framework capable of achieving multiple functions

Abstract

A cushion framework is installed on the upper side of a seat frame framework, the front end of the cushion framework is connected with the seat frame framework in a rotating mode, a lifting mechanism is arranged between the rear end of the cushion framework and the seat frame framework, the rear end of the seat frame framework is hinged to a base support through an angle adjuster, and the cushion framework is connected with the seat frame framework in a rotating mode. An extending section extending upwards is arranged at the rear end of the seat frame skeleton, and the lower end of the backrest skeleton is rotationally connected with the upper end of the extending section through an angle adjuster; the back row seat framework can form a required scene mode through corresponding posture adjustment, and the scene mode comprises a forward turning storage mode, a camping mode, an upward storage mode and the like; in the forward-turning storage mode, the backrest framework is forwards turned and folded to be flatly attached to the cushion framework; in the camping mode, the seat frame framework and the backrest framework are integrally folded backwards; in the upward storage mode, the seat frame framework and the backrest framework are integrally folded backwards firstly, and then the backrest framework is independently folded forwards to be in a vertical state. By means of the ingenious structural design, multi-posture adjustment of the seat can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive seats, and particularly to a rear seat frame capable of realizing multiple functions. Background Art

[0002] In modern life, cars have become not only a means of transportation but also an integral part of people's leisure, entertainment, and life. Therefore, customers expect the rear seats of cars to have more functions to adapt to different usage scenarios. For example, during a long journey, customers may hope that the seat can be adjusted to a more comfortable lying-flat mode for rest; during camping or outdoor activities, customers may hope that the seat can be folded into a camping mode to provide a larger activity space; and during daily use, customers may hope that the seat can be conveniently stored to save interior space. However, due to design limitations, traditional seat frame structures often cannot achieve the adjustment and conversion of multiple postures, or have complex structural designs, resulting in cumbersome and inconvenient posture adjustment operations. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention aims to provide a rear seat frame capable of realizing multiple functions, which can achieve multi-posture adjustment of the seat through a clever structural design.

[0004] To achieve the above object, the present invention provides a rear seat frame capable of realizing multiple functions, including a backrest frame, a seat cushion frame, a seat frame, and a base bracket fixed to the vehicle body. The seat cushion frame is installed on the upper side of the seat frame, its front end is rotatably connected to the seat frame, and a lifting mechanism is provided between its rear end and the seat frame. The rear end of the seat frame is hinged to the base bracket through an angle adjuster, and an extension section extending upward is provided at the rear end of the seat frame, so that the seat frame as a whole is in an L shape. The lower end of the backrest frame is rotatably connected to the upper end of the extension section through an angle adjuster;

[0005] The rear seat frame can form the required scenario modes through corresponding posture adjustments. The scenario modes include a front-fold storage mode, a camping mode, an upward storage mode, and a lying-flat mode. The front-fold storage mode is that the backrest frame is folded forward until it is flush with the seat cushion frame. The camping mode is that the seat frame and the backrest frame are folded backward as a whole until the backrest frame is flattened. The upward storage mode is that the seat frame and the backrest frame are first folded backward as a whole until the backrest frame is flattened, and then the backrest frame is folded forward alone to a vertical state. The lying-flat mode is that the seat cushion frame is first lifted by a certain angle through the lifting mechanism, and at the same time the backrest frame is flipped backward by a certain angle, so that the upper surfaces of the seat cushion frame and the backrest frame are flush, and then the seat cushion frame and the backrest frame are folded backward as a whole until they are flush with the vehicle body floor.

[0006] In the above scheme: it also includes a slide rail assembly, the base bracket is fixed on the slide rail assembly, the slide rail assembly is installed on the vehicle body floor, and can drive the base bracket to slide back and forth, so as to facilitate the front and rear position adjustment of the rear seat frame.

[0007] In the above scheme: the scene mode also includes a comfort mode, in which the seat frame frame slides forward a certain distance through the slide rail assembly, and the backrest frame flips backward a certain angle, so as to facilitate passengers to take a short nap.

[0008] In the above scheme: the lifting mechanism includes a push rod motor, two first connecting rods arranged side by side on the left and right, and two second connecting rods arranged side by side on the left and right, a front cross bar is connected between the two sides of the front end of the seat frame frame, the motor end of the push rod motor is hinged on the front cross bar, the push rod end of the push rod motor is hingedly connected to the front end of one of the first connecting rods, the two first connecting rods correspond to the two second connecting rods one by one, the rear end of the first connecting rod is hingedly connected to the lower end of the corresponding second connecting rod, and the front ends and rear ends of the two first connecting rods are connected by synchronous rods extending left and right, the middle parts of the two first connecting rods are symmetrically hinged on the corresponding side walls of the seat frame frame, and the upper ends of the second connecting rods are hinged on the rear end of the cushion frame; when the push rod end of the push rod motor moves backward, it can drive the first connecting rod and the second connecting rod to work together, thereby driving the cushion frame to lift upward.

[0009] The design of the lifting mechanism not only realizes the smooth lifting of the seat cushion frame, but also brings a more convenient and comfortable riding experience to passengers through its stable and reliable mechanism, compact structure, and easy control and adjustment.

[0010] In the above scheme: the push rod motor includes a motor, a screw rod and a push rod, the screw rod is fixed on the output end of the motor, and the push rod is a hollow tubular structure, which is threadedly sleeved on the screw rod, has a simple structure, and is easy to assemble.

[0011] In the above scheme: the motor is hinged to the front cross bar through the motor bracket, and the middle part of the first connecting rod is hinged to the side wall of the seat frame through a pin, which has a simple structure and is easy to arrange.

[0012] In the above scheme: there are two base brackets, which are symmetrically arranged on the left and right. The rear end of the seat frame skeleton is hinged to the two base brackets one by one through two relatively arranged angle adjusters, and the lower end of the backrest skeleton is also rotatably connected to the upper end of the extension section through two relatively arranged angle adjusters to ensure the stability of the seat.

[0013] The beneficial effects of the present invention are:

[0014] 1. Through unique structural design, the seat frame achieves flexible conversion among multiple scenario modes, namely the forward-folding storage mode, the camping mode, the upward storage mode, and the lying-flat mode. This not only meets the needs of customers in different usage scenarios but also enhances the practicality and convenience of the rear seats in automobiles. 2. The designs of the forward-folding storage mode and the upward storage mode enable the seat to be easily stored when not in use, effectively saving the interior space of the vehicle. This is undoubtedly a great advantage for automobiles with limited space. The design of the lying-flat mode allows the seat to be adjusted to a more comfortable lying-flat state, providing an excellent rest experience for passengers during long trips. The camping mode also provides a more spacious activity space, enhancing the comfort of outdoor activities and enabling passengers to sit towards the rear of the vehicle. 3. The seat frame realizes the adjustment and conversion of multiple postures through simple and effective mechanical structures such as angle adjusters and lifting mechanisms. These structural designs are reasonable, easy to operate, and highly versatile, enabling passengers to easily adjust the seat posture according to their needs. In short, the rear seat frame of the present invention integrates multiple functions, has a very wide range of applicable scenarios, and can flexibly meet the multi-scenario requirements of the market for rear seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 is a side view of the present invention in the initial state.

[0017] Figure 2 is Figure 1 the isometric view of.

[0018] Figure 3 is Figure 1 the schematic diagram of.

[0019] Figure 4 is a schematic diagram before the lifting mechanism lifts the seat cushion frame.

[0020] Figure 5 is a schematic diagram after the lifting mechanism lifts the seat cushion frame.

[0021] Figure 6 is the installation schematic diagram of the push rod motor.

[0022] Figure 7 is a side view of the present invention in the forward-folding storage mode.

[0023] Figure 8 is Figure 7 the isometric view of.

[0024] Figure 9 is Figure 7 the schematic diagram of.

[0025] Figure 10 It is a side view of the present invention in camping mode.

[0026] Figure 11 It is Figure 10 an axonometric view.

[0027] Figure 12 It is Figure 10 a schematic diagram.

[0028] Figure 13 It is a side view of the present invention in upward storage mode.

[0029] Figure 14 It is Figure 13 an axonometric view.

[0030] Figure 15 It is Figure 13 a schematic diagram.

[0031] Figure 16 It is a side view of the present invention in lying flat mode.

[0032] Figure 17 It is Figure 16 an axonometric view.

[0033] Figure 18 It is a schematic diagram of the upper surface of the seat cushion frame being flush with the backrest frame.

[0034] Figure 19 It is a schematic diagram of the seat cushion frame, the backrest frame being flush with the vehicle body floor.

[0035] Figure 20 It is a side view of the present invention in comfort mode.

[0036] Figure 21 It is Figure 20 an axonometric view.

[0037] Figure 22 It is Figure 20 a schematic diagram. Detailed implementation manners

[0038] As Figure 1 shown in Fig. - 22, a rear seat frame capable of realizing multiple functions mainly consists of a backrest frame 1, a seat cushion frame 2, a seat frame 3, a slide rail assembly 6, and a base bracket 4 fixed to the vehicle body.

[0039] The seat cushion frame 2 is installed on the upper side of the seat frame skeleton 3. Its front end is rotatably connected to the seat frame skeleton 3, and a lifting mechanism is provided between its rear end and the seat frame skeleton 3. The rear end of the seat frame skeleton 3 is hinged to the base bracket 4 through an angle adjuster 5, and an extension section extending upward is provided at the rear end of the seat frame skeleton 3, so that the seat frame skeleton 3 is integrally L-shaped. The lower end of the backrest frame 1 is rotatably connected to the upper end of the extension section through an angle adjuster 5.

[0040] The rear seat skeleton can form the required scene modes through corresponding attitude adjustments. The scene modes include the forward folding and storage mode, the camping mode, the upward storage mode, the comfort mode, and the lying flat mode.

[0041] The forward folding and storage mode is that the backrest frame 1 is folded forward until it is flush with the seat cushion frame 2.

[0042] The camping mode is that the seat frame skeleton 3 and the backrest frame 1 are folded backward as a whole until the backrest frame 1 is flattened.

[0043] The upward storage mode is that the seat frame skeleton 3 and the backrest frame 1 are first folded backward as a whole until the backrest frame 1 is flattened, and then the backrest frame 1 is folded forward alone to the vertical state.

[0044] The lying flat mode is that the seat cushion frame 2 is first lifted by a certain angle through the lifting mechanism, and at the same time the backrest frame 1 is flipped backward by a certain angle, so that the upper surfaces of the seat cushion frame 2 and the backrest frame 1 are flush. Then the seat cushion frame 2 and the backrest frame 1 are folded backward as a whole until they are flush with the vehicle body floor.

[0045] The base bracket 4 is fixed on the slide rail assembly 6. The slide rail assembly 6 is installed on the vehicle body floor and can drive the base bracket 4 to slide back and forth, facilitating the front and rear position adjustment of the rear seat skeleton.

[0046] The comfort mode is that the seat frame skeleton 3 slides forward a certain distance (generally 80 - 120 mm, specifically 100 mm) through the slide rail assembly 6, and at the same time the backrest frame 1 is flipped backward by a certain angle (generally 10 - 20°, specifically 15°), which is convenient for passengers to take a short nap.

[0047] Preferably, the lifting mechanism includes a push rod motor 7, two first connecting rods 9 arranged side by side left and right, and two second connecting rods 10 arranged side by side left and right. A front cross bar 11 is connected between the two sides at the front end of the seat frame skeleton 3. The motor end of the push rod motor 7 is hinged to the front cross bar 11, and the push rod end of the push rod motor 7 is hinged to the front end of one of the first connecting rods 9. The two first connecting rods 9 and the two second connecting rods 10 correspond one by one. The rear end of the first connecting rod 9 is hinged to the lower end of the corresponding second connecting rod 10, and both the front ends and the rear ends between the two first connecting rods 9 are connected by a synchronizing rod 12 extending left and right. The middle parts of the two first connecting rods 9 are symmetrically hinged to the corresponding side walls of the seat frame skeleton 3, and the upper end of the second connecting rod 10 is hinged to the rear end of the seat cushion frame 2.

[0048] When the push rod end of the push rod motor 7 moves backward, it can drive the first connecting rod 9 and the second connecting rod 10 to move in conjunction, thereby driving the seat cushion frame 2 to lift upward. The design of the lifting mechanism not only realizes the smooth lifting of the seat cushion frame 2, but also brings a more convenient and comfortable riding experience to passengers through its stable and reliable mechanism, compact structure, and easy control and adjustment.

[0049] Preferably, the push rod motor 7 comprises a motor, a screw rod and a push rod, wherein the screw rod is fixed on the output end of the motor, and the push rod is a hollow tubular structure, which is threadedly sleeved on the screw rod, has a simple structure, and is easy to assemble.

[0050] Preferably, the motor is hinged to the front crossbar 11 via the motor bracket 8, and the middle portion of the first connecting rod 9 is hinged to the side wall of the seat frame 3 via the pin 13, which has a simple structure and is easy to lay out.

[0051] Preferably, there are two base brackets 4, which are symmetrically arranged on the left and right. The rear end of the seat frame skeleton 3 is hinged to the two base brackets 4 one by one through two relatively arranged adjusters 5, and the lower end of the backrest skeleton 1 is also rotatably connected to the upper end of the extension section through two relatively arranged adjusters 5 to ensure the stability of the seat.

Claims

1. A rear seat frame capable of realizing multiple functions, comprising a backrest frame (1), a seat cushion frame (2), a seat frame frame (3) and a base bracket (4) fixed to a vehicle body, characterized in that: The seat cushion frame (2) is installed on the upper side of the seat frame frame (3), and its front end is rotatably connected to the seat frame frame (3). A lifting mechanism is provided between its rear end and the seat frame frame (3). The rear end of the seat frame frame (3) is hinged to the base bracket (4) through an angle adjuster (5), and the rear end of the seat frame frame (3) is provided with an extension section extending upward, so that the seat frame frame (3) is L-shaped as a whole. The lower end of the backrest frame (1) is rotatably connected to the upper end of the extension section through the angle adjuster (5). The rear seat frame can form a required scene mode through corresponding posture adjustment, and the scene modes include a forward folding storage mode, a camping mode, an upward folding mode and a lying flat mode; in the forward folding storage mode, the backrest frame (1) is folded forward to be flush with the seat cushion frame (2); in the camping mode, the seat frame frame (3) and the backrest frame (1) are folded backward as a whole until the backrest frame (1) is flat; in the upward folding mode, the seat frame frame (3) and the backrest frame (1) are first folded backward as a whole until the backrest frame (1) is flat, and the backrest frame (1) is then folded forward alone to a vertical state; in the lying flat mode, the seat cushion frame (2) is first lifted by a lifting mechanism to a certain angle, and the backrest frame (1) is flipped backward to a certain angle, so that the seat cushion frame (2) is flush with the upper surface of the backrest frame (1), and the seat cushion frame (2) and the backrest frame (1) are then folded backward as a whole to be flush with the vehicle body floor.

2. The rear seat frame capable of realizing multiple functions according to claim 1, characterized in that: It also includes a slide rail assembly (6), the base bracket (4) is fixed on the slide rail assembly (6), and the slide rail assembly (6) is installed on the vehicle body floor and can drive the base bracket (4) to slide forward and backward.

3. The rear seat frame capable of realizing multiple functions according to claim 2, characterized in that: The scene modes also include a comfort mode, in which the seat frame frame (3) slides forward a certain distance through the slide rail assembly (6), while the backrest frame (1) flips backward a certain angle.

4. The rear seat frame capable of realizing multiple functions according to claim 1, characterized in that: The lifting mechanism comprises a push rod motor (7), two first connecting rods (9) arranged side by side on the left and right, and two second connecting rods (10) arranged side by side on the left and right. A front cross bar (11) is connected between the two sides of the front end of the seat frame frame (3). The motor end of the push rod motor (7) is hinged on the front cross bar (11). The push rod end of the push rod motor (7) is hingedly connected to the front end of one of the first connecting rods (9). The two first connecting rods (9) correspond to the two second connecting rods (10) one by one. The rear end of the first connecting rod (9) is connected to the opposite side. The lower end of the second connecting rod (10) is hingedly connected, and the front ends and rear ends of the two first connecting rods (9) are connected by a synchronous rod (12) extending left and right. The middle parts of the two first connecting rods (9) are symmetrically hinged on the corresponding side walls of the seat frame frame (3), and the upper end of the second connecting rod (10) is hinged on the rear end of the seat cushion frame (2); when the push rod end of the push rod motor (7) moves backward, it can drive the first connecting rod (9) and the second connecting rod (10) to work together, thereby driving the seat cushion frame (2) to lift upward.

5. The rear seat frame capable of realizing multiple functions according to claim 4, characterized in that: The push rod motor (7) comprises a motor, a screw rod and a push rod, wherein the screw rod is fixed on the output end of the motor, and the push rod is a hollow tubular structure, which is threadedly sleeved on the screw rod.

6. The rear seat frame capable of realizing multiple functions according to claim 5, characterized in that: The motor is hinged to the front crossbar (11) via a motor bracket (8), and the middle portion of the first connecting rod (9) is hinged to the side wall of the seat frame (3) via a pin (13).

7. The rear seat frame capable of realizing multiple functions according to claim 1, characterized in that: There are two base brackets (4), which are symmetrically arranged on the left and right. The rear end of the seat frame frame (3) is hinged to the two base brackets (4) one by one through two angle adjusters (5) arranged oppositely. The lower end of the backrest frame (1) is also rotatably connected to the upper end of the extension section through the two angle adjusters (5) arranged oppositely.

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