Structure for preventing cushion from moving forwards during vehicle collision

Abstract

The utility model discloses a structure for preventing a seat cushion from moving forwards during vehicle collision, which comprises two backrest assemblies and a total seat cushion assembly which are arranged side by side, the bottoms of the two backrest assemblies are fixed on a vehicle body floor through two mounting brackets, a foaming steel wire is pre-embedded in a seat cushion foaming part of the seat cushion assembly, and the foaming steel wire is fixed on the seat cushion foaming part of the total seat cushion assembly. The two sides of the front end of the foaming steel wire are provided with steel wire supports extending downwards, the steel wire supports penetrate out of the cushion foaming part to be connected to the automobile body floor in a clamped mode, the rear end of the cushion foaming part is pressed below the two backrest assemblies, and therefore the cushion assemblies are integrally fixed, and the two installation supports located in the middle are provided with hooks with backward openings. The rear end of the foaming steel wire is jointly provided with an anti-channeling steel wire extending transversely corresponding to the two hooks, the anti-channeling steel wire leaks out of the receding notch and is located on the right rear side of the two hooks, and when a vehicle is collided forwards to cause forward channeling of the seat cushion assembly, the anti-channeling steel wire can be clamped into the two hooks forwards to prevent the seat cushion assembly from continuing to move forwards. According to the utility model, the safety of passengers in collision accidents is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially relates to a structure for preventing seat cushion from moving forward when vehicle collision. BACKGROUND

[0002] In the rapid development process of the automobile industry, as the key component of guaranteeing the comfort and safety of passengers, the structural design and performance optimization of automobile seat have always been the focus of the industry. At present, the traditional installation mode of automobile seat cushion assembly and vehicle body floor has certain limitations. Usually, the front end of the seat cushion assembly is clamped on the vehicle body floor through a steel wire support, and the rear end of the seat cushion assembly is fixed by the pressure applied by the backrest assembly, so as to realize the installation and positioning of the seat cushion assembly on the vehicle body floor. This installation mode can meet the basic use demand of the seat under normal driving condition, and provide passengers with relatively stable riding experience.

[0003] However, when the vehicle encounters the extreme case of forward collision, the disadvantages of the traditional installation mode are highlighted. Under the action of the great impact force generated by the forward collision, the steel wire support used for clamping at the front end of the seat cushion assembly bears a great stress. Due to the structural strength and toughness limitation of the steel wire support itself, the steel wire support is prone to breakage under such strong impact. Once the steel wire support breaks, the seat cushion assembly will lose the effective fixation at the front end and will move forward under the action of inertia. This forward movement of the seat cushion assembly not only destroys the original stable structure of the seat, but also may cause secondary injury to the passenger's body, seriously affecting the safety of the passenger in the collision accident. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model aims to provide a structure for preventing seat cushion from moving forward when vehicle collision, so as to improve the safety of passengers in the collision accident.

[0005] To achieve the above objectives, this utility model proposes a structure to prevent seat cushion from sliding forward during a vehicle collision. It includes two backrest assemblies arranged side-by-side and a single seat cushion assembly. The bottoms of both backrest assemblies are fixed to the vehicle floor by two mounting brackets arranged opposite each other. The seat cushion assembly includes a seat cushion foam. The rear end of the seat cushion foam has a clearance notch to avoid the two mounting brackets in the middle. Foamed steel wires are pre-embedded within the seat cushion foam. The front ends of the foamed steel wires have downwardly extending steel wire supports on both sides. These steel wire supports extend through the seat cushion foam and engage with the vehicle floor. The vehicle floor has a snap-fit ​​structure for engaging with the steel wire bracket, and the rear end of the foamed seat cushion is pressed under the two backrest assemblies, thereby achieving overall fixation of the seat cushion assembly. The two mounting brackets in the middle have hooks with rearward openings. The rear end of the foamed steel wire is provided with a transversely extending anti-slip steel wire corresponding to the two hooks. The anti-slip steel wire protrudes from the clearance notch and is located directly behind the two hooks. When the vehicle is hit by a frontal collision and the seat cushion assembly moves forward, the anti-slip steel wire can be snapped forward into the two hooks to prevent it from moving forward further, thereby preventing the seat cushion assembly from moving forward.

[0006] In the above scheme: the two ends of the anti-slip steel wire extend forward to form a welding section for welding with the foamed steel wire, which facilitates the welding operation.

[0007] In the above scheme, the middle part of the anti-slip steel wire is raised to increase the strength of the anti-slip steel wire.

[0008] In the above solution: the bottom ends of the backrest assembly are rotatably connected to two mounting brackets via angle adjusters. Both angle adjusters are equipped with an unlocking pull strap, which extends rearward through the backrest panel of the backrest assembly and downwards, with a pull ring attached to its end. Pulling the pull ring unlocks the angle adjuster. This design facilitates rotating and unlocking the backrest assembly from the rear.

[0009] In the above solution: a pull ring base is embedded on the back of the backrest panel. Both the pull ring and the pull ring base are plastic parts. A storage cavity with a shape and size perfectly matching the pull ring is formed on the surface of the pull ring base. A magnet is fixed in the storage cavity, and the pull ring is circumferentially confined within the storage cavity. An iron plate is pre-embedded inside the pull ring at the position corresponding to the magnet. The iron plate is magnetically attracted and fixed to the magnet, thereby achieving secure storage of the pull ring within the storage cavity. This structure can stably store the pull ring in the storage cavity, preventing it from shaking or falling off during storage.

[0010] In the above solution: the pull ring base extends upwards to the position where the pull strap exits the backrest panel, forming a strip-shaped extension section. This strip-shaped extension section has a groove for storing the unlocking pull strap, and the end of the groove communicates with a storage cavity. The groove provides a dedicated storage space for the unlocking pull strap, allowing it to be neatly stored when not in use. Furthermore, the groove integrates the unlocking pull strap storage section seamlessly with the overall structure, avoiding any obtrusive appearance.

[0011] The beneficial effects of this utility model are: 1. In the event of a frontal collision, the anti-slip steel wire can be engaged with the two hooks, effectively preventing the seat cushion assembly from continuing to slide forward, thereby avoiding the risk of passenger injury that may be caused by the seat cushion sliding forward, and significantly improving the safety of the vehicle in a collision. 2. This anti-slip structure utilizes existing mounting brackets and foamed steel wires within the seat cushion foam. By adding anti-slip steel wires and hooks, the anti-slip function of the seat cushion during a collision is achieved without requiring large-scale modifications to the overall vehicle structure. The design is simple and efficient, and the manufacturing cost is relatively low. 3. If the anti-slip steel wire is directly placed in the hook, there will be installation inconvenience. Since the seat cushion assembly is designed to be installed by first inserting the front steel wire bracket into the vehicle floor, the anti-slip steel wire needs to be bent into the hook when laying it due to the limitation of the front fixing point. This operation is difficult and the steps are cumbersome. Moreover, if the anti-slip steel wire is directly placed in the hook, it is easy for the anti-slip steel wire to rub against the hook during vehicle operation, which will produce abnormal noise and affect the comfort of the seat. Therefore, this structure is cleverly designed, easy to install, and can effectively avoid the problem of abnormal noise. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a bottom view of the seat assembly.

[0014] Figure 3 This is a schematic diagram of the layout of the anti-slip steel wires.

[0015] Figure 4 This is a diagram illustrating the storage of the pull tab.

[0016] Figure 5 yes Figure 4 A schematic diagram of a partial explosion. Detailed Implementation

[0017] like Figure 1 As shown in Figure 5, a structure for preventing seat cushions from rolling forward during a vehicle collision mainly consists of two backrest assemblies 1 arranged side by side and a total seat cushion assembly 2.

[0018] The bottom of both backrest assemblies 1 is fixed to the vehicle floor by two mounting brackets 3 arranged opposite to each other. The seat cushion assembly 2 includes a seat cushion foam 21, and the rear end of the seat cushion foam 21 is provided with a clearance notch for avoiding the two mounting brackets 3 in the middle.

[0019] Foamed steel wires 22 are embedded in the seat cushion foam 21. The front ends of the foamed steel wires 22 are provided with downward extending steel wire brackets 23. The steel wire brackets 23 pass through the seat cushion foam 21 and are snapped onto the vehicle floor. The vehicle floor is provided with a snap-fit ​​structure for cooperating with the steel wire brackets. The rear end of the seat cushion foam 21 is pressed under the two backrest assemblies 1, thereby achieving overall fixation of the seat cushion assembly 2.

[0020] The two mounting brackets 3 located in the middle are equipped with rearward-opening hooks 4. A laterally extending anti-slip wire 5 is provided at the rear end of the foamed steel wire 22, corresponding to the two hooks 4. The anti-slip wire 5 protrudes from the clearance notch and is located directly behind the two hooks 4. When the vehicle is subjected to a frontal collision causing the seat cushion assembly 2 to lurch forward, the anti-slip wire 5 can be inserted forward into the two hooks 4 to prevent it from continuing to lurch forward, thus preventing the seat cushion assembly 2 from lurching forward. The distance between the anti-slip wire 5 and the hooks 4 is very short, generally 1-5mm, so the forward lurch distance of the seat cushion assembly 2 is very limited.

[0021] Ideally, both ends of the anti-slip steel wire 5 extend forward to form a welding section for welding with the foamed steel wire 22, facilitating the welding operation.

[0022] Ideally, the anti-slip steel wire 5 should have a raised center to increase its strength.

[0023] Ideally, the bottom ends of the backrest assembly 1 are rotatably connected to two mounting brackets 3 via angle adjusters. Both angle adjusters are equipped with an unlocking pull strap 6, which extends backward through the backrest panel 101 of the backrest assembly 1 and downwards. The end of the unlocking pull strap 6 is connected to a pull ring 7. Pulling the pull ring 7 unlocks the angle adjuster. This design facilitates the rotational unlocking of the backrest assembly 1 from the rear.

[0024] Ideally, a pull ring base 8 is embedded on the back of the backrest panel 101. Both the pull ring 7 and the pull ring base 8 are plastic parts. A storage cavity 9, perfectly matching the shape and size of the pull ring 7, is formed on the surface of the pull ring base 8. A magnet 10 is fixed in the storage cavity 9, and the pull ring 7 is circumferentially confined within the storage cavity 9. An iron sheet is pre-embedded inside the pull ring base 9 at the position corresponding to the magnet 10. The iron sheet is magnetically attracted and fixed to the magnet 10, thereby achieving the storage and fixation of the pull ring 7 in the storage cavity 9. This structure can securely store the pull ring 7 in the storage cavity 9, preventing the pull ring 7 from shaking or falling off randomly when stored.

[0025] Ideally, the pull ring base 8 extends upward to the position where the pull strap exits the backrest panel 101, forming a strip-shaped extension. This extension has a groove 11 for storing the unlocking pull strap 6, and the end of the groove 11 communicates with the storage cavity 9. The groove 11 provides a dedicated storage space for the unlocking pull strap 6, allowing it to be neatly stored when not in use. Furthermore, the groove 11 integrates the storage portion of the unlocking pull strap 6 seamlessly with the overall structure, avoiding any obtrusive appearance.

Claims

1. A structure for preventing seat cushion from sliding forward during a vehicle collision, comprising two backrest assemblies (1) arranged side by side and a total seat cushion assembly (2), wherein the bottom of each of the two backrest assemblies (1) is fixed to the vehicle floor by two mounting brackets (3) arranged opposite to each other on the left and right, and the seat cushion assembly (2) comprises a seat cushion foam (21), wherein the rear end of the seat cushion foam (21) is provided with a clearance notch for avoiding the two mounting brackets (3) in the middle, wherein foamed steel wire (22) is embedded in the seat cushion foam (21), and the front ends of the foamed steel wire (22) are provided with downwardly extending steel wire brackets (23) on both sides, wherein the steel wire brackets (23) protrude from the seat cushion foam (21) and are engaged with the vehicle floor, and the rear end of the seat cushion foam (21) is pressed under the two backrest assemblies (1), thereby achieving overall fixation of the seat cushion assembly (2), characterized in that: The two mounting brackets (3) in the middle are provided with hooks (4) with their openings facing backwards. The rear end of the foamed steel wire (22) is provided with a transversely extending anti-slip steel wire (5) corresponding to the two hooks (4). The anti-slip steel wire (5) is exposed through the clearance notch and is located directly behind the two hooks (4). When the vehicle is hit by a frontal collision and the seat cushion assembly (2) moves forward, the anti-slip steel wire (5) can be inserted forward into the two hooks (4) to prevent it from moving forward.

2. The anti-seat cushion forward movement structure according to claim 1, characterized in that: The two ends of the anti-slip steel wire (5) extend forward to form a weld section for welding with the foamed steel wire (22).

3. The anti-seat cushion forward movement structure according to claim 1, characterized in that: The anti-slip steel wire (5) has a raised section in the middle.

4. The anti-seat cushion forward movement structure according to claim 1, characterized in that: The bottom ends of the backrest assembly (1) are rotatably connected to two mounting brackets (3) via angle adjusters. Both angle adjusters are equipped with an unlocking pull strap (6). The unlocking pull strap (6) extends backward through the backrest panel (101) of the backrest assembly (1) and downward. The end of the unlocking pull strap (6) is connected to a pull ring (7).

5. The anti-seat cushion forward movement structure according to claim 4, characterized in that: A pull ring base (8) is embedded on the back of the back panel (101). Both the pull ring (7) and the pull ring base (8) are plastic parts. A storage cavity (9) that perfectly matches the shape and size of the pull ring (7) is opened on the surface of the pull ring base (8). A magnet (10) is fixed in the storage cavity (9). The pull ring (7) is circumferentially limited in the storage cavity (9), and an iron sheet is pre-embedded inside the cavity corresponding to the position of the magnet (10). The iron sheet is magnetically attracted and fixed together with the magnet (10), thereby realizing the storage and fixation of the pull ring (7) in the storage cavity (9).

6. The anti-seat cushion forward movement structure according to claim 5, characterized in that: The pull ring base (8) extends upward to the position where the pull strap passes through the backrest panel (101) to form a strip extension section. The strip extension section has a strip groove (11) for storing the unlocking pull strap (6). The end of the strip groove (11) is connected to the storage cavity (9).

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