Double safety belt frame for six-split seat of two-row car

Abstract

The application discloses a double safety belt framework of a six-split seat of a second row of a car, wherein the six-split seat framework assembly is provided with a first safety belt and a second safety belt; a first reinforcing steel plate, a second reinforcing steel plate and a third reinforcing steel plate are fixedly installed on the left side of the six-split backrest framework assembly; the connecting plate is formed by two high-strength steel butt welding; the main body of the six-split seat cushion framework assembly is a high-strength aluminum alloy seat basin; the fifth, the sixth and the seventh reinforcing steel plates are fixedly installed on the high-strength aluminum alloy seat basin through bolts; and a first anti-submarine support is arranged at the position corresponding to each supporting leg of the base and a gap is reserved. The two safety belts are moved from the car body to the framework of the six-split seat of the second row, the framework strength is increased through multiple measures, the collision safety test requirements are met, the cost is reduced, the weight is reduced, the comfort and the safety are improved, and the anti-collision submarine effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, specifically to a dual seat belt frame for a second-row, six-part automotive seat. In addition to providing conventional support and restraint, the seat frame incorporates structural reinforcement along the force path of the seat belts in the backrest and seat pan to achieve the dual seat belt installation function. Background Technology

[0002] With the increasing number of vehicle usage scenarios in modern society, consumers have higher and higher requirements for the comfort of car interior space and more diversified needs for interior functions. They not only demand more adjustable functions in the front seats, but also increasingly higher demands for multi-functional adjustments and comfort in the rear seats. For example, passengers in the second row of seats require a large angle adjustment of the backrest, as well as a significant fore-and-aft adjustment. However, since rear seat belts are almost always installed in the vehicle body, passengers cannot meet safety or comfort requirements when adjusting the backrest at a large angle or the seat fore-and-aft. This is especially true for the second-row six-point seats, where both seat belts are installed, requiring even higher frame strength. If the seat strength is insufficient, it will fail to meet crash safety test requirements. Summary of the Invention

[0003] The present invention aims to provide a frame that can install two seat belts on the second-row six-point seats. By increasing the frame strength, it meets the requirements of crash safety testing, while reducing costs, lightening weight, and improving comfort and safety.

[0004] Therefore, the technical solution adopted by the present invention is as follows: a double seat belt frame for a second-row six-part seat in a car, including a slide rail assembly and a six-part seat frame assembly. The six-part seat frame assembly includes a six-part backrest frame assembly and a six-part seat cushion frame assembly. The six-part backrest frame assembly is rotatably connected to the connecting plate at the rear end of the six-part seat cushion frame assembly through an angle adjuster. A first seat belt is installed on the top left side of the six-part seat frame assembly, and a second seat belt is installed at the top middle position.

[0005] A first reinforcing steel plate, a second reinforcing steel plate, and a third reinforcing steel plate are fixedly installed on the left side of the six-point backrest frame assembly. The first reinforcing steel plate is made of high-strength steel plate bent into an "L" shape and is height-matched to the six-point backrest frame assembly. It includes a back panel and a side panel, with the upper part of the side panel offset outward relative to the lower part to form a stepped surface. The second reinforcing steel plate is welded to the lower outer part of the side panel and fills the stepped surface. The third reinforcing steel plate is welded to the lower part of the front side of the back panel. The first, second, and third reinforcing steel plates are welded together as a whole and then attached to the left side of the six-point backrest frame assembly. A fourth reinforcing steel plate is attached to the lower part of the right side of the six-point backrest frame assembly. A tenth reinforcing steel plate is attached to the lower front part of the middle position of the six-point backrest frame assembly.

[0006] The connecting plate is made of two high-strength steel plates welded together.

[0007] The main body of the six-point seat frame assembly is a high-strength aluminum alloy seat basin. A fifth reinforcing steel plate is attached to the top of the high-strength aluminum alloy seat basin, a sixth reinforcing steel plate with upper and lower flanges is attached to the left side, and a seventh reinforcing steel plate with upper and lower flanges is attached to the right side. The fifth, sixth, and seventh reinforcing steel plates are respectively fixed to the high-strength aluminum alloy seat basin by bolts.

[0008] A base is installed on the slide rail assembly, and three legs (left, middle, and right) are integrally provided at the front end of the high-strength aluminum alloy seat. A first anti-submersion bracket is provided on the base at the position corresponding to each leg, with a gap between them.

[0009] As a preferred embodiment of the above solution, the six-point backrest frame assembly can be flipped backward and laid flat relative to the six-point seat cushion frame assembly; two leg support assemblies are sequentially installed on the left and right sides of the front end of the six-point seat cushion frame assembly.

[0010] Further preferably, a front link, a rear link, and a four-bar linkage are provided below the six-point seat cushion frame assembly. A front base bracket and a rear base bracket are fixedly installed above the base. The upper ends of the front and rear links are respectively hinged to the six-point seat cushion frame assembly, the lower end of the front link is hinged to the front base bracket, and the lower end of the rear link is hinged to the rear base bracket, thus forming a four-bar linkage below the six-point seat frame assembly. The four-bar linkage drive mechanism is used to drive the rear link to rotate clockwise or counterclockwise around the lower hinge point, thereby driving the entire six-point seat frame assembly to move backward or return to its original position. A second anti-submarining bracket is also provided on the base corresponding to each front link. When the four-bar linkage is in the front position, the second anti-submarining bracket is located directly below the front link with a gap. Furthermore, when the passenger backrest is flipped flat and the seat basin is adjusted to a larger distance, the four-bar linkage increases the front space, providing a more comfortable experience for the passenger to lie down, and at the same time further enhancing the anti-submarining function.

[0011] More preferably, the slide rail assembly consists of three sections: left, middle, and right, and the front connecting rod, rear connecting rod, front base bracket, and rear base bracket each consist of three sections, respectively located at the left, middle, and right positions below the six-point seat cushion frame assembly.

[0012] More preferably, the four-bar linkage includes a drive motor and three angle adjusters arranged on the left, middle and right, and these three angle adjusters are connected by a synchronizing rod to achieve synchronous driving by the same drive motor; the angle adjuster is installed between the rear link and the rear base bracket, and one side of the angle adjuster is welded to the lower end of the rear link, and the other side is welded to the rear base bracket.

[0013] More preferably, the fifth reinforcing steel plate has a clearance notch at the rear center, and the eighth and ninth reinforcing steel plates are installed at the clearance notch, and the eighth and ninth reinforcing steel plates are respectively fixedly installed on the high-strength aluminum alloy basin by bolts.

[0014] More preferably, the slide rail assembly is an electric slide rail.

[0015] More preferably, the second anti-submersion bracket is welded from a gantry frame and a front sealing plate. The top of the gantry frame gradually rises from back to front and forms a box-shaped structure with the front sealing plate, resulting in better structural strength.

[0016] The beneficial effects of this invention are as follows: by moving the two seat belts from the vehicle body to the frame of the second-row six-seat configuration, the frame strength is increased through multiple measures to meet the requirements of collision safety testing, while reducing costs, lightening weight, improving comfort and safety, and providing anti-collision descent effect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the present invention.

[0018] Figure 2 Figure 1 Exploded view (excluding slide rail assembly).

[0019] Figure 3 Component breakdown diagram of the six-point backrest frame.

[0020] Figure 4 Component breakdown diagram of the six-point seat cushion frame.

[0021] Figure 5 Schematic diagram of the installation position of the first anti-diving support.

[0022] Figure 6 Figure 5 A magnified view of a portion of the image.

[0023] Figure 7 Schematic diagram of the installation position of the second anti-submersion support.

[0024] Figure 8 Figure 7 A magnified, flipped image of a portion of the image.

[0025] Figure 9 The diagram shows the intermediate position of the present invention when lying down.

[0026] Figure 10 The final position diagram of the present invention when lying down.

[0027] Figure 11 Schematic diagram of a four-bar linkage drive mechanism. Detailed Implementation

[0028] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0029] like Figure 1 As shown, a dual seatbelt frame for a second-row, six-part seat in a car includes a slide rail assembly 4 and a six-part seat frame assembly. The six-part seat frame assembly includes a six-part backrest frame assembly 1 and a six-part seat cushion frame assembly 2. The six-part backrest frame assembly 1 is rotatably connected to a connecting plate 11 at the rear end of the six-part seat cushion frame assembly 2 via an adjuster 3. A first seatbelt 5 is installed on the top left side of the six-part seat frame assembly, and a second seatbelt 6 is installed at the top center position. The slide rail assembly 4 is preferably an electrically operated slide rail.

[0030] Combination Figure 2 , Figure 3 As shown, a first reinforcing steel plate 7, a second reinforcing steel plate 8, and a third reinforcing steel plate 9 are fixedly installed on the left side of the six-point backrest frame assembly 1 to structurally reinforce the upper mounting point of the first seat belt 5. The first reinforcing steel plate 7 is made of high-strength steel plate bent into an "L" shape and is height-matched to the six-point backrest frame assembly 1. It includes a back panel 7a and a side panel 7b. The upper part of the side panel 7b is offset outward relative to the lower part to form a stepped surface 7c. The second reinforcing steel plate 8 is welded to the lower outer part of the side panel 7b and fills the stepped surface 7c. The third reinforcing steel plate 9 is welded to the lower part of the front side of the back panel 7a. The first reinforcing steel plate 7, the second reinforcing steel plate 8, and the third reinforcing steel plate 9 are welded into a whole and then attached to the left side of the six-point backrest frame assembly 1. The first reinforcing steel plate adopts a special L-shaped structure and a stepped surface structure, which is equivalent to bending from two directions. The second reinforcing steel plate fills the stepped surface, making the overall structural strength of the first reinforcing steel plate better.

[0031] A fourth reinforcing steel plate 10 is welded to the lower right side of the six-point backrest frame assembly 1 to structurally reinforce the lower mounting point of the second seat belt 6. The roots on both the left and right outer sides of the six-point backrest frame assembly 1 are specially reinforced to meet higher requirements for bending torque resistance at the root.

[0032] A tenth reinforcing steel plate 27 is welded to the lower front part of the six-point backrest frame assembly 1 at the middle position to structurally reinforce the lower mounting point of the first seat belt 5. Preferably, a "T"-shaped eleventh reinforcing plate 28 is also welded to the front wall of the tenth reinforcing steel plate 27.

[0033] The connecting plate 11 is made of two high-strength steels welded together to withstand the force exerted on the backrest assembly by the dual seat belts.

[0034] Combination Figure 2 , Figure 4As shown, the main body of the six-point seat frame assembly 2 is a high-strength aluminum alloy seat basin 2a. A fifth reinforcing steel plate 12 is attached to the top of the high-strength aluminum alloy seat basin 2a, a sixth reinforcing steel plate 13 with upper and lower flanges is attached to the left side, and a seventh reinforcing steel plate 14 with upper and lower flanges is attached to the right side. The fifth, sixth, and seventh reinforcing steel plates 12, 13, and 14 are fixed to the high-strength aluminum alloy seat basin 2a by bolts. Using a high-strength aluminum alloy seat basin reduces weight, while the addition of the fifth, sixth, and seventh reinforcing steel plates improves overall strength. In particular, the sixth and seventh reinforcing steel plates have upper and lower flanges, which can provide a wrap-around structural reinforcement from the left and right sides of the high-strength aluminum alloy seat basin.

[0035] Ideally, the fifth reinforcing steel plate 12 has a clearance notch 12a in the middle of its rear side to allow for clearance from structural components or connectors, etc., and the eighth and ninth reinforcing steel plates 15 and 16 are installed at this clearance notch 12a. The eighth and ninth reinforcing steel plates 15 and 16 are respectively fixedly installed on the high-strength aluminum alloy basin 2a by bolts.

[0036] Combination Figure 1 — Figure 8 As shown, a base 17 is mounted on the slide rail assembly 4. Three support legs 2b (left, center, and right) are integrally installed at the front end of the high-strength aluminum alloy seat pan 2a. A first anti-subsidence bracket 23 is installed on the base 17 at the position corresponding to each support leg 2b, with gaps between them. When a collision occurs, the seat assembly subsides. When the structure deforms to a certain distance, the support legs 2b contact and support the first anti-subsidence bracket 23, thereby reducing the injury to the passenger caused by the subsidence of the seat assembly.

[0037] Combination Figure 9 , Figure 10 As shown, the three-quarter backrest frame assembly 1 can be flipped back and laid flat relative to the three-quarter seat cushion frame assembly 2. Two leg support assemblies 26 are installed sequentially on the left and right sides of the front end of the three-quarter seat cushion frame assembly 2.

[0038] Combination Figure 9 — Figure 11 As shown, a front link 18, a rear link 19, and a four-bar linkage 20 are arranged below the six-point seat frame assembly 2. A front base bracket 21 and a rear base bracket 22 are fixedly mounted above the base 17. The upper ends of the front link 18 and the rear link 19 are hinged to the six-point seat frame assembly 2, respectively. The lower end of the front link 18 is hinged to the front base bracket 21, and the lower end of the rear link 19 is hinged to the rear base bracket 22, thus forming a four-bar linkage below the six-point seat frame assembly. The four-bar linkage 20 is used to drive the rear link 19 to rotate clockwise or counterclockwise around the lower hinge point, thereby moving the entire six-point seat frame assembly backward or forward.

[0039] Figure 9 , Figure 10To simulate the adjustment process of a passenger from an intermediate to a final reclining position when the vehicle is parked, the leg rest assembly 26 is first raised to its highest position, and the three-quarter backrest frame assembly is adjusted to its final position. Figure 9 As shown; Figure 10 After the leg rest assembly 26 and the six-point backrest assembly are adjusted to their final positions, the four-bar linkage is activated to move the entire six-point seat frame assembly backward a certain distance to meet the passenger's reclining requirements.

[0040] Combination Figure 7 — Figure 9 As shown, a second anti-submargin bracket 24 is also provided on the base 17 corresponding to each front link 18. When the four-bar linkage is in the front position, which is the normal seating position, the second anti-submargin bracket 24 is located directly below the front link 18 with a gap. Preferably, the second anti-submargin bracket 24 is welded from a gantry frame 24a and a front end plate 24b. The top of the gantry frame 24a gradually rises from back to front and forms a box-shaped structure with the front end plate 24b. When a collision occurs during normal passenger seating, the front link 18 deforms to a certain distance and contacts the second anti-submargin bracket 24. The second anti-submargin bracket 24 supports the front link 18, preventing deformation or crushing of the front link 18 from causing injury to the passenger.

[0041] The slide rail assembly 4 consists of three rails: left, middle, and right. There are three front connecting rods 18, three rear connecting rods 19, three front base brackets 21, and three rear base brackets 22, which are respectively located on the left, middle, and right sides below the six-point seat cushion frame assembly 2.

[0042] The four-bar linkage 20 preferably employs a drive motor and three angle adjusters 3 positioned on the left, center, and right sides, with the three four-bar linkages sharing a single drive mechanism 20. These three angle adjusters 3 are connected via a synchronizing rod 25, enabling synchronous drive by the same drive motor. The angle adjuster 3 is installed between the rear link 19 and the rear base bracket 22, with one side welded to the lower end of the rear link 19 and the other side welded to the rear base bracket 22. The width of the rear link 19 preferably gradually increases from top to bottom to facilitate the installation and arrangement of the angle adjuster. The specific structure of the four-bar linkage 20 is not limited to this.

Claims

1. A double seatbelt frame for a second-row six-part seat in a car, comprising a slide rail assembly (4) and a six-part seat frame assembly, wherein the six-part seat frame assembly comprises a six-part backrest frame assembly (1) and a six-part seat cushion frame assembly (2), wherein the six-part backrest frame assembly (1) is rotatably connected to a connecting plate (11) at the rear end of the six-part seat cushion frame assembly (2) via an adjuster (3), characterized in that: The first seat belt (5) is installed on the top left side of the six-point seat frame assembly, and the second seat belt (6) is installed at the top middle position. A first reinforcing steel plate (7), a second reinforcing steel plate (8), and a third reinforcing steel plate (9) are fixedly installed on the left side of the six-point backrest frame assembly (1); the first reinforcing steel plate (7) is made of high-strength steel plate bent into an "L" shape and matches the six-point backrest frame assembly (1), including a back panel (7a) and a side panel (7b), and the upper part of the side panel (7b) is offset outward relative to the lower part to form a stepped surface (7c); the second reinforcing steel plate (8) is welded to the lower outer side of the side panel (7b). And it fills the step surface (7c) perfectly; the third reinforcing steel plate (9) is welded to the lower part of the front side of the back plate (7a); the first reinforcing steel plate (7), the second reinforcing steel plate (8) and the third reinforcing steel plate (9) are welded into a whole and then attached to the left side of the six-part backrest frame assembly (1); the fourth reinforcing steel plate (10) is attached to the lower part of the right side of the six-part backrest frame assembly (1); the tenth reinforcing steel plate (27) is attached to the lower front part of the middle position of the six-part backrest frame assembly (1). The connecting plate (11) is made of two high-strength steels welded together; The main body of the six-point seat frame assembly (2) is a high-strength aluminum alloy seat basin (2a). A fifth reinforcing steel plate (12) is attached to the top of the high-strength aluminum alloy seat basin (2a), a sixth reinforcing steel plate (13) with flanges on the left side is attached to the right side, and a seventh reinforcing steel plate (14) with flanges on the right side is attached to the left side. The fifth, sixth, and seventh reinforcing steel plates (12, 13, and 14) are respectively fixed to the high-strength aluminum alloy seat basin (2a) by bolts. A base (17) is installed on the slide rail assembly (4). Three legs (2b) are integrally provided at the front end of the high-strength aluminum alloy seat (2a). A first anti-submersion bracket (23) is provided on the base (17) at the position corresponding to each leg (2b) with a gap. The six-point backrest frame assembly (1) can be flipped back and laid flat relative to the six-point seat cushion frame assembly (2); two leg support assemblies (26) are installed on the left and right sides of the front end of the six-point seat cushion frame assembly (2); a "T"-shaped eleventh reinforcing plate (28) is also welded to the front wall of the tenth reinforcing steel plate (27).

2. The dual seatbelt frame for a second-row, six-part car seat according to claim 1, characterized in that: Below the six-point seat frame assembly (2) are a front link (18), a rear link (19), and a four-bar linkage (20). A front base bracket (21) and a rear base bracket (22) are fixedly installed above the base (17). The upper ends of the front link (18) and the rear link (19) are respectively hinged to the six-point seat frame assembly (2), the lower end of the front link (18) is hinged to the front base bracket (21), and the lower end of the rear link (19) is hinged to the rear base bracket (22). Thus, a four-bar linkage is formed below the six-part seat frame assembly. The four-bar linkage drive mechanism (20) is used to drive the rear linkage (19) to rotate clockwise or counterclockwise around the lower hinge point, thereby driving the entire six-part seat frame assembly to move backward or return to its original position. A second anti-submersion bracket (24) is also provided on the base (17) corresponding to each front linkage (18). When the four-bar linkage is in the front position, the second anti-submersion bracket (24) is located directly below the front linkage (18) with a gap.

3. The dual seatbelt frame for a second-row, six-part car seat according to claim 2, characterized in that: The slide rail assembly (4) is divided into three parts: left, middle and right. The front connecting rod (18), rear connecting rod (19), front base bracket (21) and rear base bracket (22) are each three, and are respectively set at the left, middle and right positions below the six-point seat frame assembly (2).

4. The dual seatbelt frame for a second-row, six-part car seat according to claim 3, characterized in that: The four-bar linkage drive mechanism (20) includes a drive motor and three angle adjusters (3) arranged on the left, middle and right. The three angle adjusters (3) are connected by a synchronizing rod (25) to achieve synchronous drive by the same drive motor. The angle adjuster (3) is installed between the rear linkage (19) and the rear base bracket (22). One side of the angle adjuster is welded to the lower end of the rear linkage (19), and the other side is welded to the rear base bracket (22).

5. The dual seatbelt frame for a second-row, six-part car seat according to claim 1, characterized in that: The fifth reinforcing steel plate (12) has a clearance notch (12a) in the middle of its rear side, and the eighth and ninth reinforcing steel plates (15, 16) are installed at the clearance notch (12a), and the eighth and ninth reinforcing steel plates (15, 16) are respectively fixedly installed on the high-strength aluminum alloy basin (2a) by bolts.

6. The dual seatbelt frame for a second-row, six-part car seat according to claim 1, characterized in that: The slide rail assembly (4) is an electric slide rail.

7. The dual seatbelt frame for a second-row, six-part car seat according to claim 2, characterized in that: The second anti-submersion bracket (24) is welded together from a gantry frame (24a) and a front sealing plate (24b). The top of the gantry frame (24a) gradually rises from back to front and forms a box-shaped structure with the front sealing plate (24b).

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