Seat belt end fasteners, seat belt assemblies and automobiles

Abstract

This application provides a seat belt end fixing device, a seat belt assembly, and an automobile, relating to the field of automotive component technology. The seat belt end fixing device includes: a fixing member, comprising a first connecting portion and a second connecting portion, the first connecting portion being used for fixed connection to the vehicle body; and a sliding member, connected to the second connecting portion of the fixing member via a locking member, the sliding member being used for fixed connection to the seat belt webbing. The locking member includes a locked state and an unlocked state. When the locking member is in the locked state, the sliding member is fixedly connected to the fixing member. When the locking member is in the unlocked state, the sliding member is slidably connected to the fixing member, and the sliding member can slide a preset distance relative to the fixing member towards the webbing. When the tension of the seat belt webbing on the sliding member is greater than or equal to a preset tension, the locking member switches from the locked state to the unlocked state. This seat belt end fixing device can reduce the displacement difference between the occupant's head and chest during a vehicle collision, reducing the risk of head injury to the occupant.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a seat belt end fixing device, a seat belt assembly, and an automobile. Background Technology

[0002] A seatbelt is a safety device used in vehicles and other means of transportation to protect occupants from injury in the event of a collision or sudden deceleration.

[0003] Seat belts typically secure the occupant's chest and waist to the seat, thus reducing the risk of the occupant colliding with other parts of the vehicle due to inertia in the event of a collision, and lowering the likelihood of being ejected from the vehicle.

[0004] However, because seat belts fix both the occupant's chest and waist, a collision can cause a significant difference in displacement between the occupant's head and chest, which can easily lead to head injuries. Utility Model Content

[0005] This application provides a seat belt end fixing device, a seat belt assembly, and a car. The seat belt end fixing device is used to solve the problem in the above-mentioned related technologies that when a vehicle collides, the displacement difference between the head and chest of the occupant is large, which can easily cause head injuries to the occupant.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A first aspect of this application provides a seatbelt end fixing device for connecting a seatbelt webbing to a vehicle body; wherein...

[0008] The seat belt end fixing device includes:

[0009] The fastener includes a first connecting portion and a second connecting portion, wherein the first connecting portion is used for fixed connection with the vehicle body;

[0010] A sliding member is connected to the second connecting portion of the fixing member via a locking member. The sliding member includes a third connecting portion for fixed connection with the seat belt webbing.

[0011] The locking member includes a locked state and an unlocked state. When the locking member is in the locked state, the sliding member is fixedly connected to the second connecting part. When the locking member is in the unlocked state, the sliding member is slidably connected to the second connecting part. The sliding member can slide a preset distance relative to the second connecting part towards the third connecting part.

[0012] When the tension of the seat belt webbing on the sliding member is greater than or equal to the preset tension, the locking member switches from the locked state to the unlocked state.

[0013] The seatbelt end fixing device provided in this application embodiment, by setting a fixing member and a sliding member, and setting a locking member between the sliding member and the fixing member, can connect the seatbelt webbing to the vehicle body through the fixing member and the sliding member, thereby improving the connection stability of the seatbelt webbing. By setting the locking member to have a locked state and an unlocked state, in the unlocked state, the sliding member can move a preset distance relative to the fixing member, and the locking member will only automatically switch from the locked state to the unlocked state when the seatbelt webbing is subjected to a tension exceeding a preset tension. This design allows the seatbelt to automatically adjust (by a preset distance) in specific situations (such as emergency braking or collision) to provide better protection.

[0014] It should be noted that seat belts typically secure the occupant's chest and waist during use. The seat belt end fixing device is fixedly connected to the vehicle body. In this embodiment, the seat belt end fixing device is the fixing point for securing the occupant's waist. Therefore, when the sliding member moves relative to the fixing member, the length of the seat belt webbing used to secure the occupant's waist can be increased by a preset distance, resulting in a small displacement of the occupant's waist relative to the seat. In the event of a collision or sudden stop, the automatic unlocking function allows the seat belt webbing to adjust rapidly due to the occupant's inertia, reducing pressure on the occupant's waist and allowing for a small displacement. Compared to fixing the occupant's waist immobile, this reduces the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest, and ultimately lowering the risk of head injury. This dynamic response capability improves overall safety. The locking member remains locked under normal conditions, preventing accidental movement of the sliding member, reducing the possibility of misoperation, and ensuring the seat belt remains stable during normal use. By limiting the range of motion of the sliding element within a preset distance, it is possible to prevent excessive loosening of the occupant's waist, which could lead to other problems, such as the occupant sliding under the seat belt during a collision.

[0015] In one possible implementation, one of the slider and the second connecting portion includes a groove extending along the direction from the fixing member to the third connecting portion; wherein...

[0016] The locking member passes through the slide groove and is fixedly connected to one of the sliding members and the second connecting part;

[0017] When the locking member is in the locked state, the locking member is fixedly connected to the slide groove;

[0018] When the locking member is in the unlocked state, the locking member is movably connected to the slide groove.

[0019] This design simplifies the structure of the sliding and fixing parts, reduces manufacturing difficulty, and consequently lowers costs. Furthermore, by passing the locking element through the groove and fixing it to one of the sliding and second connecting parts, the number of moving parts can be reduced, thereby decreasing the risk of failure and maintenance costs.

[0020] In one possible implementation, the groove is disposed on the sliding member, and the locking member is fixedly connected to the second connecting portion;

[0021] When the locking member is in the locked state, the distance from the locking member to the end of the slide groove away from the third connecting part is the preset distance.

[0022] In one possible implementation, the groove is disposed on the second connecting portion, and the locking member is fixedly connected to the sliding member;

[0023] When the locking member is in the locked state, the distance from the locking member to the end of the slide groove facing the third connecting part is the preset distance.

[0024] This design increases the flexibility of the fasteners and sliding components, allowing for the determination of a suitable structure based on the assembly space, reducing assembly difficulty, and adapting to different vehicle models. By pre-setting the distance between the locking component and the end of the slide groove opposite to or towards the third connection, the maximum sliding range of the sliding component can be precisely controlled. This precise control helps ensure that the seatbelt functions effectively in emergency situations without becoming excessively loose or tight.

[0025] In one possible implementation, the groove includes a blocking portion; wherein,

[0026] When the slider slides a preset distance relative to the second connecting part toward the third connecting part, the locking part abuts against the blocking part.

[0027] By incorporating a stop, the sliding element can be prevented from sliding beyond a preset distance. This limitation ensures that the seatbelt does not loosen excessively in an emergency, thus maintaining effective protection for the occupant. The stop provides a physical constraint, ensuring that the sliding element stops stably when it reaches the preset position, preventing further sliding due to inertia or other external forces. The stop can be integrated into the design of the slide rail, simplifying the overall structure and reducing manufacturing complexity and cost.

[0028] In one possible implementation, the locking member includes a connecting fixing part and a locking part; wherein,

[0029] The fixing part passes through the slide groove and is fixedly connected to one of the sliding members and the second connecting part;

[0030] The locking part is used to press one of the slider and the second connecting part so that the slider and the second connecting part fit tightly together.

[0031] By having the fixing part pass through the groove and securely connect to the sliding member or the second connecting part, a robust connection point can be provided for the locking element, ensuring the strength and stability of the connection between the sliding member and the second connecting part under normal and emergency conditions. By configuring the locking part to compress one of the sliding member and the second connecting part, the two are tightly fitted together. This tight fit reduces the likelihood of loosening and vibration of the seatbelt under normal conditions, improving the overall stability of the system. In an emergency, this tight fit can be broken, allowing the locking element to switch from the locked state to the unlocked state. Automatic unlocking under specific conditions can be achieved without additional structures, simplifying the locking element's structure, reducing assembly difficulty, and thus lowering costs.

[0032] In one possible implementation, the preset distance is between 20mm and 50mm.

[0033] In one possible implementation, the preset distance is 30mm.

[0034] This design allows the seatbelt to move sufficiently in an emergency to absorb the impact, thereby reducing pressure on the occupant's body, while also preventing it from becoming too loose and compromising safety.

[0035] In one possible implementation, the preset tensile force is between 1900N and 2900N.

[0036] In one possible implementation, the preset tension is 2600N.

[0037] This setup is generally sufficient to handle the inertial forces generated during a collision or sudden braking, ensuring that the seatbelts effectively protect occupants in critical moments. Within this tension range, the seatbelt system can automatically adjust as needed to absorb and disperse impact energy, thereby reducing the risk of occupant injury. Setting a higher preset tension value (such as above 1900N) can reduce false triggering due to occupant movement or vehicle vibrations under normal driving conditions, ensuring that the locking mechanism only switches to the unlocked state when truly needed (such as in an emergency).

[0038] In one possible implementation, the fastener has an "L" shaped structure.

[0039] By arranging the fasteners in an L-shape, the geometry effectively distributes and withstands forces from different directions, improving the overall structural strength and stability, as the L-shape provides two mutually perpendicular planes. The L-shape also makes it easier to securely connect to the vehicle body or other components. One plane can be used for fixing to the body, while the other can be used to connect sliding parts, simplifying the installation process. The L-shape structure can also be compactly adapted to the interior space of a vehicle, especially in areas with limited space, effectively utilizing corner and edge spaces.

[0040] In one possible implementation, the locking element is a rivet.

[0041] By using rivets as the locking element, a strong mechanical connection is achieved, capable of withstanding high loads and vibrations, ensuring the stability and reliability of the connection under normal driving conditions. In emergencies, relative sliding between the sliding element and the second connection can overcome the frictional force of the rivet. Furthermore, the rivet installation process is relatively simple, requiring no complex tools or equipment, making it suitable for large-scale production and assembly line operations. Rivets are generally more economical than other types of mechanical fasteners (such as bolts and screws), reducing production and maintenance costs.

[0042] In one possible implementation, the slider is a plate-like structure;

[0043] The third connecting part is located at the end of the sliding member opposite to the fixing member, and the third connecting part has a hole-like structure.

[0044] By designing the sliding element as a plate-like structure, the simplicity of the plate design, ease of manufacturing and processing, helps reduce production costs and complexity. Despite its simple structure, the plate-like design provides sufficient strength and rigidity to withstand the tensile and stress forces in the seatbelt system. By designing the third connection as a perforated structure, it can accommodate different types and sizes of seatbelt webbing, increasing the design's versatility and adaptability. Furthermore, the perforated structure is easy to process, reducing costs.

[0045] In one possible implementation, the first connecting portion includes a first mounting hole.

[0046] By providing a first mounting hole at the first connection part, it is easy to connect to the vehicle body, reducing assembly difficulty. Furthermore, the first mounting hole has a hole-like structure, which facilitates processing and is beneficial for mass production.

[0047] A second aspect of this application provides a seatbelt assembly, including seatbelt webbing and a seatbelt end fastening device as described in any of the first aspects; wherein...

[0048] The seat belt webbing is fixedly connected to the sliding component of the seat belt end fixing device.

[0049] The seat belt assembly provided in this application embodiment, by setting the seat belt end fixing device of the first aspect, can provide good protection for occupants during normal driving. It can also automatically adjust (by a preset distance) the length of the seat belt webbing around the occupant's waist under specific circumstances (such as emergency braking or collision), thereby reducing the pressure on the occupant's waist and allowing for a small displacement of the waist. Compared to fixing the occupant's waist and preventing it from moving, this can reduce the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest, and thus reducing the risk of head injury to the occupant. This dynamic response capability improves overall safety.

[0050] A third aspect of this application provides an automobile, including a vehicle body and a seatbelt assembly as described in the second aspect.

[0051] The automobile provided in this application embodiment, by incorporating the seat belt assembly described in the second aspect, can possess the advantages of the aforementioned seat belt assembly. This allows it to provide good protection for occupants during normal driving and to automatically adjust (by a preset distance) the length of the seat belt webbing around the occupant's waist in specific situations (such as emergency braking or a collision). This reduces pressure on the occupant's waist and allows for minimal waist displacement. Compared to fixing the occupant's waist immobile, this reduces the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest and lowering the risk of head injury. This dynamic response capability improves overall safety. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of a seat belt end fixing device;

[0054] Figure 2 This is a schematic diagram of the structure of a seat belt end fixing device provided in an embodiment of this application;

[0055] Figure 3 This is an exploded structural diagram of a seatbelt end fixing device provided in an embodiment of this application;

[0056] Figure 4 for Figure 2A schematic diagram of the structure of the sliding member of the seat belt end fixing device after it has moved a preset distance relative to the fixing member;

[0057] Figure 5 An exploded structural diagram of another seat belt end fixing device provided in an embodiment of this application;

[0058] Figure 6 This is a schematic diagram of the usage state structure of a seat belt assembly provided in an embodiment of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 1. 100 - Seat belt end fixing device; 10 - Sliding component; 11 - Third connecting part;

[0061] 12-Slide groove; 121-Blocking part; 13-Fourth connecting part;

[0062] 20 - Fastener; 21 - First connecting part; 211 - First mounting hole;

[0063] 22-Second connecting part; 221-Second mounting hole;

[0064] 30 - Locking component; 31 - Fixing part; 32 - Locking part;

[0065] 200 - Seat belt webbing; 210 - Retractor; 220 - Buckle insert;

[0066] 230 - Guide ring; 240 - Lock; 300 - Seat. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0068] In conventional seat belt components, such as Figure 1 As shown, the seat belt end fixing device 1 is an end piece, wherein one end of the end piece is used to connect to the vehicle body, and the other end is used to connect to the seat belt webbing 200. When a vehicle collision occurs, the webbing is taut and under stress, restricting the occupant's waist movement, resulting in a large difference in displacement between the occupant's head and chest, causing a high value of head injury to the occupant.

[0069] To address the aforementioned technical problems, this application provides a seatbelt end fixing device. By setting a locking component, the seatbelt webbing can be automatically adjusted (by a preset distance) under specific circumstances (such as emergency braking or collision) to provide better protection. This solves the problem in the aforementioned related technologies where a large displacement difference between the occupant's head and chest can easily cause head injuries to the occupant during a vehicle collision.

[0070] The following detailed description, with reference to the accompanying drawings, describes the seat belt end fixing device, seat belt assembly, and automobile provided in the embodiments of this application.

[0071] Figure 2 This is a schematic diagram of a seat belt end fixing device provided in an embodiment of this application. Figure 3 This is an exploded structural diagram of a seat belt end fixing device provided in an embodiment of this application.

[0072] This application provides a seat belt end fixing device for connecting the seat belt webbing to the vehicle body. For example... Figure 2 As shown, the seat belt end fixing device 100 may include a fixing member 20, a sliding member 10, and a locking member 30. The fixing member 20 may include a first connecting portion 21 and a second connecting portion 22, the first connecting portion 21 being used for fixed connection with the vehicle body. The sliding member 10 is connected to the second connecting portion 22 of the fixing member 20 via the locking member 30. The sliding member 10 includes a third connecting portion 11, the third connecting portion 11 being used for fixed connection with the seat belt webbing 200.

[0073] The locking member 30 can include a locked state and an unlocked state. When the locking member 30 is in the locked state, the sliding member 10 is fixedly connected to the second connecting part 22. When the locking member 30 is in the unlocked state, the sliding member 10 is slidably connected to the second connecting part 22, and the sliding member 10 can slide a preset distance relative to the second connecting part 22 towards the third connecting part 11. When the tension of the seat belt webbing 200 on the sliding member 10 is greater than or equal to a preset tension, the locking member 30 switches from the locked state to the unlocked state.

[0074] The seat belt end fixing device 100 provided in this application embodiment, by setting a fixing member 20 and a sliding member 10, and setting a locking member 30 between the sliding member 10 and the fixing member 20, can connect the seat belt webbing 200 to the vehicle body through the fixing member 20 and the sliding member 10, thereby improving the connection stability of the seat belt webbing 200. By setting the locking member 30 to have a locked state and an unlocked state, in the unlocked state, the sliding member 10 can move a preset distance relative to the fixing member 20, and the locking member 30 will automatically switch from the locked state to the unlocked state only when the seat belt webbing 200 is subjected to a tension exceeding a preset tension. This design allows the seat belt to automatically adjust (by a preset distance) in specific situations (such as emergency braking or collision) to provide better protection.

[0075] It should be noted that seat belts typically secure the occupant's chest and waist during use. The seat belt end fixing device 100 is fixedly connected to the vehicle body. In this embodiment, the seat belt end fixing device 100 serves as the fixing point for securing the occupant's waist. Therefore, when the sliding member 10 moves relative to the fixing member 20, the length of the seat belt webbing 200 used to secure the occupant's waist can be increased by a preset distance, resulting in a small displacement of the occupant's waist relative to the seat. In the event of a collision or sudden stop, the automatic unlocking function allows the seat belt webbing 200 to adjust rapidly due to the occupant's inertia, reducing pressure on the occupant's waist and allowing for a small displacement. Compared to fixing the occupant's waist immobile, this reduces the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest, and ultimately lowering the risk of head injury. This dynamic response capability improves overall safety. The locking member 30 remains locked under normal conditions, preventing accidental movement of the sliding member 10, reducing the possibility of misoperation, and ensuring the seat belt remains stable during normal use. By limiting the range of movement of the slider 10 within a preset distance, it is possible to prevent excessive loosening of the occupant's waist, which could lead to other problems, such as the occupant sliding out from under the seat belt during a collision.

[0076] It should be noted that the sliding member 10 can slide a predetermined distance relative to the second connecting portion 22 towards the third connecting portion 11. This means that after the seat belt webbing 200 exerts a large pulling force on the sliding member 10, the sliding member 10 moves relative to the second connecting portion 22. In other words, under a large pulling force, the locking member 30 can be switched from the locked state to the unlocked state. In some embodiments, this switch can be achieved by breaking the locking member 30, for example, by breaking the locking member 30. Of course, in other embodiments, it can also be achieved by breaking the connection between the locking member 30 and the sliding member 10 or the fixing member 20. For example, the sliding member 10 and the fixing member 20 are fixedly connected by a large frictional force. When the sliding member 10 receives a large pulling force, the pulling force is greater than the frictional force, thereby forcing the sliding member 10 to move relative to the fixing member 20.

[0077] In one possible implementation, one of the slider 10 and the second connecting portion 22 includes a groove 12 extending along the direction from the fixing member 20 to the third connecting portion 11 (the x-direction in the figure). A locking member 30 passes through the groove 12 and is fixedly connected to the other of the slider 10 and the second connecting portion 22. When the locking member 30 is in the locked state, it is fixedly connected to the groove 12. When the locking member 30 is in the unlocked state, it is movably connected to the groove 12.

[0078] This configuration simplifies the structure of the slider 10 and the fixing member 20, reduces processing difficulty, and thus lowers costs. By passing the locking member 30 through the slide groove 12 and fixing it to one of the slider 10 and the second connecting part 22, the number of moving parts can also be reduced, thereby reducing the risk of failure and maintenance costs.

[0079] In the embodiments of this application, such as Figure 2 As shown, the sliding member 10 is provided with a sliding groove 12, which extends along the direction from the fixing member 20 to the third connecting part 11 (the x direction in the figure). During assembly, the locking member 30 can pass through the sliding groove 12 and be fixedly connected to the second connecting part 22. When the locking member 30 is in the locked state, the distance H from the end of the locking member 30 to the sliding groove 12 away from the third connecting part 11 is a preset distance.

[0080] By setting the groove 12 on the sliding member 10, the structure of the sliding member 10 is simpler than that of the fixing member 20, making it easier to manufacture and reducing the manufacturing difficulty. By pre-setting the distance between the locking member 30 and the end of the groove 12 opposite to or towards the third connecting part 11, the maximum sliding range of the sliding member 10 can be precisely controlled. This precise control helps ensure that the seat belt functions effectively in an emergency without becoming excessively loose or tight.

[0081] like Figure 3 As shown, in one possible implementation, the slide 12 may include a blocking portion 121. When the slider 10 slides a predetermined distance relative to the second connecting portion 22 towards the third connecting portion 11, the locking member 30 abuts against the blocking portion 121 (see [reference]). Figure 4 (As shown).

[0082] By providing the blocking part 121, the sliding member 10 can be prevented from continuing to slide beyond a preset distance. This restriction ensures that the seat belt will not loosen excessively in an emergency, thereby maintaining effective protection for the occupant. The blocking part 121 provides a physical limit to ensure that the sliding member 10 can stop stably when it reaches the preset position, preventing further sliding due to inertia or other external forces.

[0083] For example, the blocking portion 121 can be the top or bottom of the groove 12. For instance, when the groove 12 is located on the slider, the blocking portion 121 can be the bottom of the groove 12, and when the groove 12 is located on the second connecting portion 22 of the fixing member 20, the blocking portion 121 can be the top of the groove 12. In this way, the blocking portion 121 can be an integral part of the design of the groove 12, simplifying the overall structure and reducing manufacturing complexity and cost.

[0084] In one possible implementation, such as Figure 3 As shown, the locking member 30 may include a fixed portion 31 and a locking portion 32 connected together. The fixed portion 31 passes through the slide groove 12 and is fixedly connected to another of the sliding member 10 and the second connecting portion 22. The locking portion 32 is used to press one of the sliding member 10 and the second connecting portion 22 to make the sliding member 10 and the second connecting portion 22 fit tightly together.

[0085] By having the fixing part 31 pass through the slide groove 12 and be fixedly connected to the sliding member 10 or the second connecting part 22, a robust connection point can be provided for the locking member 30, ensuring the connection strength and stability between the sliding member 10 and the second connecting part 22 under normal and emergency conditions. By configuring the locking part 32 to compress one of the sliding member 10 and the second connecting part 22, the two are made to fit tightly together. This tight fit reduces the possibility of loosening and vibration of the seat belt under normal conditions, improving the overall stability of the system. In an emergency, this tight fit can be broken, allowing the locking member 30 to switch from the locked state to the unlocked state. Automatic unlocking under specific conditions can be achieved without additional structures, simplifying the structure of the locking member 30, reducing assembly difficulty, and thus lowering costs.

[0086] In one possible implementation, the preset distance can be between 20mm and 50mm. For example, the preset distance can be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, or 50mm, etc. In this embodiment, the value of the preset distance is not further limited.

[0087] This design allows the seatbelt to move sufficiently in an emergency to absorb the impact, thereby reducing pressure on the occupant's body, while also preventing it from becoming too loose and compromising safety.

[0088] In one possible implementation, the preset tensile force can be between 1900N and 2900N. For example, the preset tensile force can be 1900N, 2000N, 2100N, 2200N, 2300N, 2400N, 2500N, 2600N, 2700N, 2800N, 2900N, etc. In this embodiment, the specific value of the preset tensile force is not further limited.

[0089] This setup is generally sufficient to handle the inertial forces generated during a collision or sudden braking, ensuring that the seatbelts effectively protect occupants in critical moments. Within this tension range, the seatbelt system can automatically adjust as needed to absorb and disperse impact energy, thereby reducing the risk of occupant injury. Setting a higher preset tension value (e.g., above 1900N) can reduce false triggering due to occupant movement or vehicle vibrations under normal driving conditions, ensuring that the locking element 30 only switches to the unlocked state when truly needed (such as in an emergency).

[0090] In one possible implementation, see [link to previous section] Figure 3 As shown, the fastener 20 can be L-shaped. For example, the first connecting part 21 can be arranged along the horizontal direction in the figure, and the second connecting part 22 can be arranged along the vertical direction in the figure.

[0091] By arranging the fastener 20 into an L-shaped structure, the geometry effectively disperses and withstands forces from different directions, improving the overall structural strength and stability, as the L-shape provides two mutually perpendicular planes. The L-shaped design also facilitates easier connection to the vehicle body or other components. One plane can be used for fixing to the vehicle body, while the other can be used to connect the sliding member 10, simplifying the installation process. The L-shaped structure can compactly adapt to the interior space layout of a vehicle, especially in areas with limited space, effectively utilizing corner and edge spaces.

[0092] In one possible implementation, the locking element 30 can be a rivet. By setting the locking element 30 as a rivet, the rivet can provide a strong mechanical connection, withstand high loads and vibrations, ensure the stability and reliability of the connection under normal driving conditions, and in emergency situations, allow relative sliding between the sliding element 10 and the second connecting part 22 to overcome the frictional force of the rivet. Furthermore, the rivet installation process is relatively simple, requiring no complex tools or equipment, making it suitable for large-scale production and assembly line operations. Rivets are generally more economical than other types of mechanical fasteners (such as bolts and screws), reducing production and maintenance costs.

[0093] Of course, in other embodiments, the locking member 30 may also be other structures, such as bolts. In this embodiment, the specific structure of the locking member 30 is not further limited.

[0094] In one possible implementation, the slider 10 can be a plate-like structure. The third connecting portion 11 is located at the end of the slider 10 opposite to the fixing member 20, and the third connecting portion 11 has a hole-like structure.

[0095] By designing the slider 10 as a plate-like structure, the simplicity of the plate design, ease of manufacture and processing, helps reduce production costs and complexity. Despite its simple structure, the plate-like design provides sufficient strength and rigidity to withstand the tension and stress in the seatbelt system. By designing the third connecting part 11 as a perforated structure, different types and sizes of seatbelt webbing 200 can be accommodated, increasing the versatility and adaptability of the design. Furthermore, the perforated structure is easy to process, reducing costs.

[0096] In one possible implementation, the first connecting portion 21 includes a first mounting hole 211, through which fasteners or similar components can pass for fixed connection with the vehicle body during assembly. The second connecting portion 22 may include a second mounting hole 221, through which the fixing portion 31 of the locking member 30 can pass and be fixedly connected with the second connecting portion 22 during assembly. By providing a first mounting hole 211 in the first connecting portion 21 and a second mounting hole 221 in the second connecting portion 22, connection with the vehicle body can be facilitated, assembly difficulty can be reduced, and the first mounting hole 211 has a hole-like structure, which facilitates processing and is beneficial for mass production.

[0097] It should be noted that the first connecting part 21 can also be connected to the vehicle body by welding or other means. In this embodiment, the connection method between the first connecting part 21 and the vehicle body is not further limited.

[0098] The above embodiments describe an example in which the groove 12 is disposed on the slider 10. Of course, in other embodiments, the groove 12 may also be disposed on the second connecting part 22.

[0099] like Figure 5 As shown, the slide groove 12 can also be provided at the second connecting part 22, the locking member 30 passes through the slide groove 12 and is fixedly connected to the sliding member 10. The blocking part 121 can be located at the top of the slide groove 12. When the locking member 30 is in the locked state, the distance h from the locking member 30 to the end of the slide groove 12 facing the third connecting part 11 is a preset distance.

[0100] The slider 10 may be provided with a fourth connecting part 13, and the locking member 30 passes through the slide groove 12 and is fixedly connected to the fourth connecting part 13 of the slider 10. The third connecting part 11 is located on top of the fourth connecting part so as to be fixedly connected to the seat belt webbing.

[0101] By positioning the slide groove 12 either on the sliding member 10 or on the fixing member 20, the design flexibility of the fixing member 20 and the sliding member 10 can be improved. This allows for determining a suitable structure based on the assembly space, reducing assembly difficulty and adapting to different vehicle models. By pre-setting the distance between the locking member 30 and the end of the slide groove 12 opposite to or towards the third connecting portion 11, the maximum sliding range of the sliding member 10 can be precisely controlled. This precise control helps ensure that the seatbelt functions effectively in emergency situations without becoming excessively loose or tight.

[0102] Of course, in some other embodiments, a groove 12 may be provided on the slider 10 and a groove 12 may also be provided on the second connecting part 22 of the fixing member 20. In this embodiment, the location of the groove 12 is not further limited.

[0103] It should be noted that in the embodiments of this application, "orientation" refers to orientation in a broad sense and is not limited to a front-facing arrangement, and "away from" refers to away from in a broad sense and is not limited to a back-to-back parallel arrangement.

[0104] It should be noted that, in this embodiment, apart from the different shapes of the slider 10 and the fixing member 20, the other structures and principles are the same as those in this application. Figures 2-4 The embodiments shown are the same. In this application embodiment, other structures besides the fixing member 20 and the sliding member 10 will not be described in detail.

[0105] This application also provides a seat belt assembly, including a seat belt webbing 200 and a seat belt end fixing device 100 as described in the above embodiments. The seat belt webbing 200 is fixedly connected to a sliding member 10 of the seat belt end fixing device 100.

[0106] The seat belt assembly provided in this application embodiment, by setting the seat belt end fixing device 100 in the above embodiment, can provide good protection for the occupant during normal driving. It can also automatically adjust (by a preset distance) the length of the seat belt webbing 200 around the occupant's waist under specific circumstances (such as emergency braking or collision), thereby reducing the pressure on the occupant's waist and allowing for a smaller displacement of the waist. Compared to fixing the occupant's waist and preventing it from moving, this can reduce the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest, and thus reducing the risk of head injury to the occupant. This dynamic response capability improves overall safety.

[0107] like Figure 6 As shown, the seatbelt assembly may include a seatbelt webbing 200, a retractor 210, a buckle insert 220, a guide ring 230, a buckle 240, and a seatbelt end fastening device 100. The retractor 210 is fixed to the vehicle structure, typically located on the vehicle floor below the seat 300 or on the side of the vehicle. One end of the seatbelt webbing 200 is connected to the retractor 210, allowing the retractor 210 to tighten and loosen the webbing via a rotating axis. The guide ring 230 is located on the side where the retractor 210 is mounted and on top of the retractor 210. The seatbelt webbing 200 passes through the guide ring 230, allowing the occupant to adjust the length and tension of the webbing as needed to ensure comfortable and safe wear.

[0108] For example, the buckle 240 is installed on the side of the seat 300 away from the retractor 210, the seat belt end fixing device 100 is installed on the side of the seat 300 near the retractor 210, and the end of the seat belt webbing 200 away from the retractor 210 is fixedly connected to the seat belt end fixing device 100.

[0109] The buckle 240 is equipped with a release mechanism that allows occupants to quickly unfasten the seatbelt when needed. The retractor 210 automatically adjusts the length of the webbing for comfort and locks the webbing in an emergency using an inertial locking mechanism to prevent it from being pulled out excessively.

[0110] It should be noted that the seat belt assembly in this application embodiment can be used in the front seat or the rear seat of a car. Of course, it can also be used in seats on trains, airplanes, ships, entertainment facilities, etc. In this application embodiment, the application scope of the seat belt assembly is not further limited.

[0111] This application also provides an automobile, including a vehicle body and a seat belt assembly as described in the above embodiments.

[0112] The automobile provided in this application embodiment, by setting the aforementioned seat belt assembly, can possess the advantages of the aforementioned seat belt assembly, thereby providing good protection for occupants during normal driving. It can also automatically adjust (by a preset distance) the length of the seat belt webbing 200 around the occupant's waist in specific situations (such as emergency braking or collision), reducing pressure on the occupant's waist and allowing for smaller waist displacement. Compared to fixing the occupant's waist and preventing it from moving, this reduces the displacement difference between the occupant's waist and chest, thereby reducing the displacement difference between the head and chest, and thus reducing the risk of head injury to the occupant. This dynamic response capability improves overall safety.

[0113] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0114] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0115] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0116] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A seat belt end fixation device, characterized by Used to connect seat belt webbing to the vehicle body; among which, The seat belt end fixing device includes: The fastener includes a first connecting portion and a second connecting portion, wherein the first connecting portion is used for fixed connection with the vehicle body; A sliding member is connected to the second connecting portion of the fixing member via a locking member. The sliding member includes a third connecting portion for fixed connection with the seat belt webbing. The locking member includes a locked state and an unlocked state. When the locking member is in the locked state, the sliding member is fixedly connected to the second connecting part. When the locking member is in the unlocked state, the sliding member is slidably connected to the second connecting part. The sliding member can slide a preset distance relative to the second connecting part towards the third connecting part. When the tension of the seat belt webbing on the sliding member is greater than or equal to the preset tension, the locking member switches from the locked state to the unlocked state.

2. The seat belt end fixation device of claim 1, wherein One of the sliding member and the second connecting portion includes a groove extending along the direction from the fixing member to the third connecting portion; wherein... The locking member passes through the slide groove and is fixedly connected to one of the sliding members and the second connecting part; When the locking member is in the locked state, the locking member is fixedly connected to the slide groove; When the locking member is in the unlocked state, the locking member is movably connected to the slide groove.

3. The seat belt end fixation device of claim 2, wherein The groove is provided on the sliding member, and the locking member is fixedly connected to the second connecting part; When the locking member is in the locked state, the distance from the locking member to the end of the slide groove away from the third connecting part is the preset distance.

4. The seat belt end fixation device of claim 2, wherein The groove is provided on the second connecting part, and the locking member is fixedly connected to the sliding member; When the locking member is in the locked state, the distance from the locking member to the end of the slide groove facing the third connecting part is the preset distance.

5. A belt end fixation device according to any one of claims 2-4, characterized in that The groove includes a blocking part; wherein... When the slider slides a preset distance relative to the second connecting part toward the third connecting part, the locking part abuts against the blocking part.

6. A belt end fixation device according to any one of claims 2-4, characterized in that The locking component includes a connecting fixing part and a locking part; wherein... The fixing part passes through the slide groove and is fixedly connected to one of the sliding members and the second connecting part; The locking part is used to press one of the slider and the second connecting part so that the slider and the second connecting part fit tightly together.

7. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The preset distance is between 20mm and 50mm.

8. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The preset tensile force ranges from 1900N to 2900N.

9. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The fastener has an "L" shaped structure.

10. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The locking component is a rivet.

11. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The sliding element has a plate-like structure; The third connecting part is located at the end of the sliding member opposite to the fixing member, and the third connecting part has a hole-like structure.

12. The seat belt end fixing device according to any one of claims 1-4, characterized in that, The first connecting portion includes a first mounting hole.

13. A seatbelt assembly, characterized in that, Includes seat belt webbing and a seat belt end fastening device as described in any one of claims 1-12; wherein, The seat belt webbing is fixedly connected to the sliding component of the seat belt end fixing device.

14. A car, characterized in that, Includes the vehicle body and the seat belt assembly as described in claim 13.

Images