Vehicle seat follow-up seat belt assembly, follow-up adjustment method, seat and vehicle

Abstract

A vehicle seat follow-up seat belt assembly, a follow-up adjustment method, a seat and a vehicle, which relate to the technical field of vehicle seat belts. The vehicle seat follow-up seat belt assembly comprises a follow-up lower anchor lifting mechanism (101), wherein the follow-up lower anchor lifting mechanism (101) comprises a rivet (3), an outer rocker arm (1) and an inner rocker arm (2), a first end of the outer rocker arm (1) being fixed to a first end of the inner rocker arm (2) by means of the rivet (3), the rivet (3) being configured to be rotationally connected to an anchor bracket (4), a second end of the outer rocker arm (1) being configured to be connected to a seat belt (7), and a second end of the inner rocker arm (2) being configured to be connected to a seat-body reinforcement plate (6).

Description

Vehicle seat-adjustable seat belt assembly, adjustment method, seat and vehicle

[0001] This disclosure claims priority to Chinese Patent Application No. 202410908592.0, filed on July 8, 2024, entitled "Vehicle Seat Follow-up Seat Belt Assembly, Follow-up Adjustment Method, Seat and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure pertains to the field of vehicle seat belt technology, and particularly relates to a vehicle seat-following seat belt assembly, a follow-up adjustment method, a seat, and a vehicle. Background Technology

[0003] With societal progress and the rapid development of the automotive industry, traffic accidents have received increasing attention. The use of seat belts can reduce the severity of injuries in traffic accidents. As a primary passive safety feature in automobiles, seat belts, according to statistics, reduce the probability of death for occupants by 71% and the driver's probability by 77% in frontal collisions of passenger vehicles. In side collisions, seat belts reduce the probability of death for occupants by 67% and the driver's probability by 76%. In a frontal collision: the car comes to a sudden stop, and the seat belt ensures that the body is fixed in the seat, preventing forward lurch due to inertia. Simultaneously, the airbag deploys to absorb the remaining impact energy. Airbag deployment is instantaneous, leaving occupants no time to react. Studies indicate that deployment generates an impact force of approximately 180 kg. If a seat belt is not worn before the collision, the massive impact of the rapidly inflating airbag will directly impact the head and chest of the front-seat occupants, causing serious injury. The function of a seatbelt is to hold a person in their seat during the deployment of an airbag, absorb some of the impact force, and apply it to the hard areas of the chest and pelvis to prevent premature contact with the airbag.

[0004] Seat belts also play a role in restraining the movement of occupants. When a car is spun after a collision, they can effectively fix the position of the occupants, reduce displacement injuries, and prevent them from being thrown out of the car. When a vehicle is rolled over after a collision, the occupants inside the car lose their center of gravity. Seat belts can both mitigate the impact between the occupants and the roof and restrain the occupants to prevent them from being thrown out.

[0005] Currently, many automakers are introducing integrated seats, where components such as the seatbelt retractor and lower anchor point are no longer installed on the vehicle body but on the seat itself. This allows the seat to move forward or rotate without affecting the occupant's ability to wear the seatbelt. In existing technology, when the seatbelt lower anchor point structure is fixed to the seat rail, it can only be adjusted forward and backward with the rail, not vertically.

[0006] Currently, seat belts fixed to the upper and lower anchor points of the seat rail are equipped with seat covers, and the seat belts need to extend from the slots in the seat cover. As the seat height is adjusted, the seat cover rises upwards and backwards along with the seat frame, while the lower anchor points are fixed to the seat rails and do not change with the seat height. As the seat is lowered, the front end of the seat cover slots gets closer to the seat belt. In a frontal collision, the seat belt strapped to the dummy's waist and abdomen will tighten and stretch forward due to the dummy's forward inertia. The front end of the seat belt is prone to interference and friction with the seat cover during a collision, posing a risk of seat belt breakage and failure, which can cause serious injury to the occupant. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, this disclosure provides a vehicle seat follow-up seat belt assembly, a follow-up adjustment method, a seat, and a vehicle. A seat belt assembly that can rise and fall with the vehicle seat is designed to solve the problem that when the lower anchor point integrated seat moves downward, the seat belt is too close to the seat cover groove, and the seat belt may break due to friction with the front end of the groove during a collision. This reduces the possibility of seat belt failure causing injury to occupants during a car collision.

[0008] To achieve the above objectives, one or more embodiments of this disclosure provide the following technical solutions:

[0009] The first aspect of this disclosure provides a vehicle seat-following seat belt assembly.

[0010] A vehicle seat follow-up seat belt assembly includes a follow-up lower anchor point lifting mechanism, which includes a rivet, an outer rocker arm, and an inner rocker arm. The first end of the outer rocker arm and the first end of the inner rocker arm are fixed by a rivet, which is used to rotatably connect with the anchor point bracket. The second end of the outer rocker arm is used to connect the seat belt, and the second end of the inner rocker arm is used to connect the seat body reinforcement plate.

[0011] As an alternative technical solution, an anchor point end piece is also included, which is connected to the second end of the outer rocker arm. A seat belt is threaded through the anchor point end piece and extends out from the slot of the seat cover.

[0012] As an optional technical solution, the outer rocker arm and the inner rocker arm are respectively disposed on both sides of the anchor point bracket, and the angle between the second end of the outer rocker arm and the second end of the inner rocker arm is set to 20°-120°.

[0013] As an optional technical solution, the anchor bracket is fixedly connected to the seat slide rail.

[0014] As an optional technical solution, the anchor bracket has pre-drilled anchor mounting holes, and the rivets are inserted into the anchor mounting holes.

[0015] As an optional technical solution, the second end of the inner rocker arm is provided with an opening, and the opening at the second end of the inner rocker arm is fixedly connected to the opening on the reinforcing plate of the seat body by a rotating shaft; the second end of the outer rocker arm is provided with a limiting hole, and the anchor point end piece is provided with a limiting block, and the limiting hole and the limiting block are adapted to each other.

[0016] As an alternative technical solution, the maximum rearward displacement corresponding to the maximum angle of rotation of the anchor point end piece under the drive of the follow-up lower anchor point lifting mechanism is greater than the maximum rearward displacement of the seat cover.

[0017] The second aspect of this disclosure provides a seat.

[0018] The seat includes a seat body, a seat height adjustment mechanism, and a vehicle seat follow-up seat belt assembly as described in the first aspect. The seat body has a seat cover with a slot through which the seat belt of the vehicle seat follow-up seat belt assembly extends. The seat height adjustment mechanism includes a seat rail located below the seat body and connected to an anchor point bracket of the vehicle seat follow-up seat belt assembly. The seat body includes a seat body reinforcement plate connected to an inner rocker arm of the vehicle seat follow-up seat belt assembly.

[0019] This disclosure provides a vehicle in a third aspect.

[0020] The vehicle includes a vehicle seat-following seat belt assembly as described in the first aspect, or a seat as described in the second aspect.

[0021] The fourth aspect of this disclosure provides a method for adjusting a vehicle seat-following seat belt assembly.

[0022] The method for adjusting a vehicle seatbelt with adaptive function includes the following steps:

[0023] When the vehicle seat is adjusted downwards from its highest position, the seat body reinforcement plate moves backwards and downwards.

[0024] The seat body reinforcement plate drives the inner rocker arm to move backward and downward. The inner rocker arm and the outer rocker arm are relatively fixed in position. Then the inner rocker arm drives the outer rocker arm, the outer rocker arm drives the anchor point end piece, and the seat belt on the anchor point end piece to move backward and upward.

[0025] The end of the seat belt moves backward along the seat cover slot, so that the end of the seat belt moves away from the front end of the seat cover slot that moves backward and downward.

[0026] The technical solution provided in this disclosure includes at least the following beneficial effects:

[0027] This disclosure provides a vehicle seat follow-up seat belt assembly, a follow-up adjustment method, a seat, and a vehicle. The follow-up seat belt assembly includes a follow-up lower anchor point lifting mechanism, comprising a rivet, an outer rocker arm, and an inner rocker arm. The first end of the outer rocker arm is fixed to the first end of the inner rocker arm by the rivet, which is used for rotatable connection with the anchor point bracket. The second end of the outer rocker arm is used to connect to the seat belt, and the second end of the inner rocker arm is used to connect to the seat body reinforcement plate. Based on this principle, the aforementioned follow-up lower anchor point lifting mechanism allows the seat belt lower anchor point structure (anchor point end piece structure), originally fixed to the seat rail, to rise and fall with the seat body. When the seat body is lowered, the seat belt lower anchor point structure (anchor point end piece structure) can rotate rearward, increasing the distance between the seat belt and the foremost edge of the seat cover groove. This solves the problem of the seat belt being too close to the seat cover groove when the seat belt moves downward, potentially causing breakage due to friction between the seat belt and the front edge of the groove during a collision, thus reducing the possibility of seat belt failure causing injury to occupants in a collision.

[0028] This disclosure can effectively improve the safety of seat-type lower anchor point seat belts, prevent the seat belt from interfering with the seat cover groove and breaking during a collision, reduce the injury suffered by occupants in the event of a collision or rollover, and increase user satisfaction and product market competitiveness.

[0029] As the seat is raised or lowered, the anchor point end piece can rotate up to 80° and move backward by 63mm, which is farther than the rearward displacement of the seat cover. This effectively avoids interference between the front groove of the seat cover and the seat belt during seat movement, and makes the seat belt fit the occupant's waist more closely when the seat is lowered, resulting in better comfort.

[0030] This invention has a simple structure, is easy to operate, and has a relatively low cost. It can be installed and modified on the original seat frame, and is easy to install and highly reliable.

[0031] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a schematic diagram of the vehicle seat follow-up seat belt assembly in the highest position of the seat according to an embodiment of the present disclosure;

[0034] Figure 2 is a schematic diagram of the vehicle seat follow-up seat belt assembly in the lowest seat state according to an embodiment of the present disclosure;

[0035] Figure 3 is an isometric view of the installation of a vehicle seat follow-up seat belt assembly according to an embodiment of the present disclosure;

[0036] Figure 4 is a front view schematic diagram of the installation of a vehicle seat follow-up seat belt assembly according to an embodiment of the present disclosure;

[0037] Figure 5 is an isometric view of the follow-up lower anchor point lifting mechanism shown in an embodiment of this disclosure;

[0038] Figure 6 is a front view schematic diagram of the follow-up lower anchor point lifting mechanism shown in an embodiment of this disclosure;

[0039] Figure 7 is a left-side schematic diagram of the follow-up lower anchor point lifting mechanism shown in an embodiment of this disclosure.

[0040] Legend: 1. Outer rocker arm, 2. Inner rocker arm, 3. Rivet, 101. Follow-up lower anchor point lifting mechanism, 4. Anchor point bracket, 5. Anchor point end piece, 6. Seat body reinforcement plate, 7. Seat belt, 8. Seat cover, 9. Seat slide rail, 10. Opening, 11. Rotary shaft, 12. Limiting hole, 13. Limiting block, 14. Seat body. Detailed Implementation

[0041] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent disclosure and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0042] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0043] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0044] In related technologies, the lower anchor point structure of the seat belt 7 is fixed to the seat slide rail 9 and can only be adjusted forward and backward with the slide rail, but not in height. When the driver or passenger adjusts the seat height, as the seat height increases, the seat cover 8 rises along with the seat frame to the rear and upper part of the seat, while the seat belt 7 is fixed to the seat slide rail 9 and does not change with the seat height. However, as the seat height decreases, the front end of the slot in the seat cover 8 will be closer to the seat belt 7. When a frontal collision occurs, the seat belt 7 will be stretched forward due to forward inertia. The front end of the seat belt 7 and the seat cover 8 are prone to interference and friction during the collision, and the seat belt 7 is at risk of breaking and failing, which will cause great injury to the driver or passenger.

[0045] Therefore, the non-adjustable height of the lower anchor point of the seat belt 7 in related technologies still poses certain safety hazards and risks. Based on this, a specific embodiment of this disclosure presents a vehicle seat-following seat belt assembly. The lower anchor point of the seat belt 7 is designed as a follow-up structure that rises and falls with the seat. Through a clever and simple structural design, when the seat is adjusted downwards from a high position, the lower anchor point of the seat belt 7 rotates backwards, increasing the distance between the seat belt 7 and the foremost edge of the seat cover 8 slot. This solves the problem in existing technologies where the seat belt 7 is too close to the seat cover 8 slot when the seat moves downwards, potentially causing it to break due to friction with the front edge of the slot during a collision. This reduces the possibility of injury to occupants due to seat belt 7 failure during a collision.

[0046] In this embodiment, the vehicle seat-following seat belt assembly is applied to a vehicle seat. As shown in Figures 1 and 2, the seat includes a seat body 14 and a seat rail 9, with the seat rail 9 located below the seat body 14. The seat body 14 is height-adjustable on the seat rail 9. Furthermore, when the seat body 14 is lowered, it also moves rearward. The seat-following seat belt assembly includes an anchor bracket 4 and a seat belt 7, with the anchor bracket 4 fixed to the seat rail 9. The seat body 14 has a seat cover 8, which moves with the seat body 14. The seat belt 7 is rotatably connected to the anchor bracket 4 and extends through the seat cover 8.

[0047] Please refer to Figures 3-7. The vehicle seat follow-up seat belt assembly also includes a follow-up lower anchor point lifting mechanism 101. Figures 5-7 are respectively an axonometric view, a front view, and a left view of the follow-up lower anchor point lifting mechanism 101 of the vehicle seat follow-up seat belt assembly in this embodiment. The follow-up lower anchor point lifting mechanism 101 may include a rivet 3, an outer rocker arm 1, and an inner rocker arm 2. The first end of the outer rocker arm 1 and the first end of the inner rocker arm 2 are fixed by the rivet 3, which is used to rotatably connect with the anchor point bracket 4. The second end of the outer rocker arm 1 is used to connect the seat belt 7, and the second end of the inner rocker arm 2 is used to connect the seat body reinforcing plate 6. The outer rocker arm 1 and the inner rocker arm 2 are fixed by the rivet 3, and their relative positions do not change during rotation. Therefore, during the follow-up process, the movement of the inner rocker arm 2 can drive the movement of the outer rocker arm 1, thereby causing the position of the seat belt 7 connected to the outer rocker arm 1 to move.

[0048] In this embodiment, the second end of the inner rocker arm 2 is the end that is far away from the first end of the inner rocker arm 2, and the second end of the outer rocker arm 1 is the end that is far away from the first end of the outer rocker arm 1. The second end of the outer rocker arm 1 is square, and the second end of the inner rocker arm 2 is arc-shaped. The square second end of the outer rocker arm 1 is provided with rounded corners, and holes are provided at the positions of the inner rocker arm 2 and the outer rocker arm 1 near the second end, so that it can be easily connected to other components.

[0049] As shown in Figures 5 and 6, the angle between the second end of the outer rocker arm 1 and the second end of the inner rocker arm 2 can be set to 20°-120°, and in this embodiment, it is set to 30°. It can be understood that the first end of the outer rocker arm 1 and the first end of the inner rocker arm 2 are overlapped, as shown in Figure 7, which facilitates fixing by rivets 3.

[0050] As shown in Figures 1-4, a certain angle is set between the second end of the outer rocker arm 1 and the second end of the inner rocker arm 2. This is so that when the vehicle seat follow-up seat belt assembly of this embodiment is installed on the seat, the driver or passenger can adjust the seat height, causing the seat body reinforcement plate 6 to shift. The seat body reinforcement plate 6 will then drive the inner rocker arm 2 to shift, causing the inner rocker arm 2 to rotate. Since the first end of the inner rocker arm 2 is riveted to the first end of the outer rocker arm 1 and the rivet 3 is rotatably connected to the anchor point bracket 4, the rivet 3 will rotate along the anchor point bracket 4 under the drive of the inner rocker arm 2, causing the outer rocker arm 1 to also rotate along the anchor point bracket 4, thereby causing the lower anchor point of the seat belt 7 to move. There is a certain angle between the outer rocker arm 1 and the inner rocker arm 2, which can effectively change the movement direction of the seat belt 7 and the movement direction of the groove on the seat cover 8 of the seat body 14. This ensures that the movement direction of the seat belt 7 is different from the movement direction of the groove on the seat cover 8 of the seat body 14, thereby increasing the distance between the seat belt 7 and the front end of the groove on the seat cover 8. This solves the problem that the seat belt 7 is too close to the groove on the seat cover 8 when the seat moves downward, and the seat belt 7 may break due to friction with the front end of the groove during a collision.

[0051] For example, as a specific implementation, since there is a 30° angle between the second end of the outer rocker arm 1 and the second end of the inner rocker arm 2, when the driver and passenger adjust the seat to the highest position (or a higher position) and then adjust the seat height downward from the highest position, due to the existence of the included angle, the moving direction of the seat body 14 connected to the inner rocker arm 2 is not the same as the moving direction of the seat belt 7 connected to the outer rocker arm 1. That is to say, the moving position of the slot through which the seat belt 7 passes on the seat body 14 (the slot of the seat cover 8) is different from the moving direction of the seat belt 7 passing through it. Therefore, the seat belt 7 and the front end of the slot will not fit or interfere with each other, thereby avoiding serious consequences in the event of a collision or accident.

[0052] The outer rocker arm 1 and the seat belt 7 are connected by an anchor point end piece 5. The anchor point end piece 5 is connected to the second end of the outer rocker arm 1, and the seat belt 7 is threaded through the anchor point end piece 5, exiting from the slot of the seat cover 8. Furthermore, to better prevent the seat belt 7 from fitting too tightly or interfering with the front end of the slot, the maximum rearward displacement corresponding to the maximum angle of rotation of the anchor point end piece 5 under the drive of the follow-up lower anchor point lifting mechanism 101 is greater than the maximum rearward displacement of the seat cover 8. This facilitates the creation of a certain gap between the seat belt 7 and the front end of the slot, better ensuring the safety of the driver and passengers.

[0053] As a further technical solution, in order to better ensure that the moving position of the slot through which the seat belt 7 passes on the seat body 14 is different from the moving direction of the seat belt 7 passing through it, this embodiment can further define the specific positions of the outer rocker arm 1 and the inner rocker arm 2 in the highest position of the seat body 14:

[0054] Please refer to Figures 1 and 2 for details. Figure 1 is a schematic diagram of the vehicle seat-following seat belt assembly in the highest position; Figure 2 is a schematic diagram of the vehicle seat-following seat belt assembly in the lowest position. As can be seen from Figure 1, in the highest position of the seat, the inner rocker arm 2, driven by the upward movement of the seat body 14, has rotated along the anchor point bracket 4 to the 12 o'clock position, which is offset from the vertical direction. At this time, the anchor point end piece 5 driven by the outer rocker arm 1 has not yet reached the 12 o'clock position in the vertical direction between the anchor points.

[0055] When transitioning from the state in Figure 1 to the state in Figure 2, that is, when the driver or passenger adjusts the seat from the highest state to the lowest state, as the seat body 14 moves to the lower right, the seat body reinforcement plate 6 and the seat cover 8 also move to the lower right. Since the inner rocker arm 2 in Figure 6 has exceeded the 12 o'clock position in the vertical direction, the inner rocker arm 2 also moves to the lower right under the action of the seat body reinforcement plate 6.

[0056] At this time, since the outer rocker arm 1 has not yet reached the 12 o'clock position in the vertical direction, as the inner rocker arm 2 drives the outer rocker arm 1 to rotate to the lower right, the actual direction of movement of the outer rocker arm 1 is to the upper right. Therefore, the anchor end piece 5 connected to the outer rocker arm 1 and the seat belt 7 passing through the anchor end piece 5 will also move to the upper right, thereby ensuring the difference in the direction of movement between the seat belt 7 and the slot of the seat cover 8, and better ensuring the distance of the gap between the seat belt 7 and the front end of the slot.

[0057] In other embodiments, the above limitations may not be imposed; it is sufficient to ensure that the angle difference between the inner rocker arm 2 and the outer rocker arm 1 is appropriate, and that the moving direction of the seat belt 7 differs somewhat from the moving direction of the slot. This embodiment does not impose any limitations in this regard.

[0058] In this embodiment, as the seat is raised or lowered, the anchor point end piece 5 can rotate up to 80° and move backward by 63mm, which is farther than the rearward displacement of the seat cover 8. This effectively avoids interference between the front groove of the seat cover 8 and the seat belt 7 during seat movement, and makes the seat belt 7 fit more snugly against the waist of the driver and passenger when the seat is lowered. This effectively improves the safety of the seat-type lower anchor point seat belt 7, prevents the seat belt 7 from interfering with the groove of the seat cover 8 and breaking during a collision, and reduces the injury to the occupant in the event of a collision or rollover.

[0059] Please refer to Figures 3 and 4. As a further technical solution, the outer rocker arm 1 and the inner rocker arm 2 are respectively disposed on both sides of the anchor point bracket 4. The anchor point bracket 4 has pre-reserved anchor point mounting holes, and the rivet 3 passes through the anchor point mounting holes. In this embodiment, the anchor point end piece 5 is connected to the second end of the outer rocker arm 1. A seat belt 7 is threaded through the anchor point end piece 5, and the seat belt 7 passes through the slot of the seat cover 8. The anchor point bracket 4 is fixedly connected to the seat slide rail 9.

[0060] The second end of the inner rocker arm 2 is provided with an opening 10, and the opening 10 at the second end of the inner rocker arm 2 is fixedly connected to the opening on the seat body reinforcing plate 6 through a rotating shaft 11; the second end of the outer rocker arm 1 is provided with a limiting hole 12, and the anchor point end piece 5 is provided with a limiting block 13, and the limiting hole 12 and the limiting block 13 are adapted to each other, so that the anchor point end piece 5 is fixedly connected to the second end of the outer rocker arm 1.

[0061] Furthermore, in this embodiment, the seat body reinforcement plate 6 is the left side reinforcement plate of the seat body.

[0062] Detailed installation method:

[0063] During installation, the outer rocker arm 1 and the inner rocker arm 2 can be riveted to the original seat anchor point fixing bracket (anchor point bracket 4) using rivets 3. The outer rocker arm 1 and the inner rocker arm 2 can rotate around the holes of the seat fixing bracket. The outer rocker arm 1 is used to install the anchor point end piece 5, and the inner rocker arm 2 is riveted to the left reinforcing plate of the seat body (seat body reinforcing plate 6). The seat can be adjusted up and down under the action of the four-bar linkage and the motor. When the seat is adjusted up and down, the inner rocker arm 2, because it is riveted to the left reinforcing plate of the seat body, moves with the reinforcing plate, driving the outer rocker arm 1 and the anchor point end piece 5 fixed on the outer rocker arm 1 to move. When the seat is adjusted down, the anchor point end piece 5 can pull the end of the seat belt 7 to move backward along the slot of the seat cover 8, so that the end of the seat belt 7 is away from the front end slot of the seat cover 8 that moves backward and downward.

[0064] More specifically, the specific installation method of this embodiment is shown in Figure 3. The outer rocker arm 1 and the inner rocker arm 2 are installed on the seat anchor bracket 4. The square block on the outer rocker arm 1 and the square groove of the circular boss on the inner rocker arm 2 are spliced ​​together at a 30° angle between the outer rocker arm 1 and the inner rocker arm 2. They are installed in the original anchor mounting hole of the seat anchor bracket 4 and then fixed with rivets 3, so that the outer rocker arm 1 and the inner rocker arm 2 can rotate around the seat anchor bracket 4.

[0065] The opening 10 on the inner rocker arm 2 is fixedly connected to the opening 10 on the seat body reinforcing plate 6 via a rotating shaft 11;

[0066] Next, align the limiting block 13 of the anchor end piece 5 with the limiting hole 12 of the outer rocker arm 1, and fix it with bolts;

[0067] Finally, install the seat belt 7 onto the anchor bracket 4, so that the seat belt 7 passes through the anchor end piece 5. Then install the seat cover 8 and pass the seat belt 7 through the slot in the seat cover 8, as shown in Figures 1 and 2, thus completing the installation of the entire vehicle seat follow-up seat belt assembly.

[0068] Working principle:

[0069] The effects after installation in this embodiment are shown in Figures 1 and 2, with the seat in its highest position as shown in Figure 1. When the seat mechanism is adjusted downwards, the seat cover 8 fixed to the seat body 14 also moves downwards and backwards. The seat anchor bracket 4 is fixed to the seat slide rail 9, and the up-and-down movement of the seat does not change the state of the anchor bracket 4. At this time, the seat body reinforcing plate 6 moves downwards and backwards, driving the inner rocker arm 2 to move downwards and backwards. The inner rocker arm 2 and the outer rocker arm 1 are connected by rivets 3, making the positions of the inner rocker arm 2 and the outer rocker arm 1 relatively fixed. The outer rocker arm 1 and the anchor end piece 5 fixed thereon move upwards and backwards, pulling the end of the seat belt 7 to move backwards along the slot of the seat cover 8, so that the end of the seat belt 7 moves away from the front end slot of the seat cover 8 moving downwards and backwards, realizing the movement of the lower anchor point of the seat belt 7 for adjustment.

[0070] As the seat is raised and lowered, from its highest to its lowest position, the mechanism allows the anchor point end piece 55 to rotate up to 80° and move backward by 63mm, which is further than the rearward displacement of the seat cover 8. This effectively prevents the front groove of the seat cover 8 from interfering with the seat belt 7 during seat movement, and ensures that the seat belt 7 fits more snugly against the occupant's waist when the seat is lowered, preventing the seat belt 7 from becoming too loose. In the event of a collision, insufficient restraint on the occupant's waist could cause the occupant to lurch forward, resulting in additional injury.

[0071] This embodiment discloses a seat.

[0072] A seat, as shown in Figures 1 and 2, includes a seat body 14, a seat height adjustment mechanism, and a vehicle seat follow-up seat belt assembly as described above. The seat body 14 has a seat cover 8 with a slot through which the seat belt 7 of the vehicle seat follow-up seat belt assembly passes. The seat height adjustment mechanism includes a seat rail 9 located below the seat body 14 and connected to an anchor point bracket 4 of the vehicle seat follow-up seat belt assembly. The seat body 14 includes a seat body reinforcement plate 6 connected to an inner rocker arm 2 of the vehicle seat follow-up seat belt assembly.

[0073] In this embodiment, the seat height adjustment mechanism also includes a motor and a four-bar linkage. The motor drives the four-bar linkage to move, thereby moving the seat body 14 along the seat slide rail 9 to raise or lower the seat.

[0074] This embodiment provides a vehicle.

[0075] A vehicle comprising the aforementioned vehicle seat-following seatbelt assembly, or comprising the aforementioned seat.

[0076] This embodiment provides a method for adjusting a vehicle seatbelt assembly that follows the user's movements.

[0077] A method for adjusting a vehicle seatbelt assembly that follows movement, comprising the following steps:

[0078] When the vehicle seat is adjusted downward from its highest position, the seat body reinforcement plate 6 moves backward and downward;

[0079] The seat body reinforcement plate 6 drives the inner rocker arm 2 to move backward and downward. The inner rocker arm 2 and the outer rocker arm 1 are relatively fixed in position. Then the inner rocker arm 2 drives the outer rocker arm 1, the outer rocker arm 1 drives the anchor end piece 5, and the seat belt 7 on the anchor end piece 5 to move backward and upward.

[0080] The end of the seat belt 7 moves backward along the slot of the seat cover 8, so that the end of the seat belt 7 moves away from the front end of the slot of the seat cover 8 which is moving backward and downward.

[0081] In fact, the following adjustment method of the vehicle seat following seat belt assembly in this embodiment is to ensure that the moving direction of the seat belt 7 is different from the moving direction of the seat belt 7 slot on the seat cover 8 when the seat is lowered, so as to achieve the purpose of moving the seat belt 7 away from the front end of the slot.

[0082] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A vehicle seat-following seat belt assembly, characterized in that, The vehicle seat follow-up seat belt assembly is applied to the seat. The vehicle seat follow-up seat belt assembly includes a follow-up lower anchor point lifting mechanism (101) and an anchor point bracket (4). The follow-up lower anchor point lifting mechanism (101) includes a rivet (3), an outer rocker arm (1) and an inner rocker arm (2). The first end of the outer rocker arm (1) and the first end of the inner rocker arm (2) are fixed by the rivet (3). The rivet (3) is used to rotatably connect with the anchor point bracket (4). The second end of the outer rocker arm (1) is used to connect the seat belt (7), and the second end of the inner rocker arm (2) is used to connect the seat body reinforcement plate (6) of the seat.

2. The vehicle seat-following seat belt assembly as described in claim 1, characterized in that, The vehicle seat follow-up seat belt assembly also includes an anchor point end piece (5), which is connected to the second end of the outer rocker arm (1). The seat belt (7) is threaded through the anchor point end piece (5) and extends out from the slot of the seat cover (8) of the seat.

3. The vehicle seat-following seat belt assembly as described in claim 2, characterized in that, The maximum backward displacement corresponding to the maximum angle of rotation of the anchor end piece (5) under the drive of the follow-up lower anchor lifting mechanism (101) is greater than the maximum backward displacement of the seat cover (8).

4. The vehicle seat-following seat belt assembly as described in claim 2, characterized in that, The second end of the inner rocker arm (2) is provided with an opening, and the opening at the second end of the inner rocker arm (2) is fixedly connected to the opening on the seat body reinforcing plate (6) by a rotating shaft; the second end of the outer rocker arm (1) is provided with a limiting hole (12), and the anchor end piece (5) is provided with a limiting block (13), and the limiting hole (12) and the limiting block (13) are adapted to each other.

5. The vehicle seat-following seat belt assembly as described in claim 1, characterized in that, The outer rocker arm (1) and the inner rocker arm (2) are respectively disposed on both sides of the anchor point bracket (4), and the angle between the second end of the outer rocker arm (1) and the second end of the inner rocker arm (2) is set to 20°-120°.

6. The vehicle seat-following seat belt assembly as claimed in claim 1, characterized in that, The anchor bracket (4) is fixedly connected to the seat slide rail (9) of the seat.

7. The vehicle seat-following seat belt assembly as claimed in claim 6, characterized in that, The anchor bracket (4) has a pre-drilled anchor mounting hole, and the rivet (3) is inserted into the anchor mounting hole.

8. A type of seat, characterized in that, The seat includes a seat body (14), a seat height adjustment mechanism, and a vehicle seat follow-up seat belt assembly as described in any one of claims 1-7. The seat body (14) is provided with a seat cover (8), and the seat cover (8) has a slot. The seat belt (7) of the vehicle seat follow-up seat belt assembly passes through the slot. The seat height adjustment mechanism includes a seat slide rail (9), which is located below the seat body (14) and is connected to the anchor bracket (4) of the vehicle seat follow-up seat belt assembly. The seat body (14) includes a seat body reinforcement plate (6), which is connected to the inner rocker arm (2) of the vehicle seat follow-up seat belt assembly.

9. A vehicle, characterized in that, The vehicle includes a vehicle seat-following seat belt assembly as described in any one of claims 1-7, or includes a seat as described in claim 8.

10. A method for adjusting a vehicle seat-following seatbelt assembly, characterized in that, The follow-up adjustment method is applied to the seat as described in claim 8, and the follow-up adjustment method includes the following steps: When the seat is adjusted downward from its highest position, the seat body reinforcement plate (6) moves backward and downward; The seat body reinforcement plate (6) drives the inner rocker arm (2) to move backward and downward. The inner rocker arm (1) and the outer rocker arm (2) are relatively fixed in position. Then the inner rocker arm (1) drives the outer rocker arm, the outer rocker arm drives the anchor point end piece, and the seat belt on the anchor point end piece to move backward and upward. The end of the seat belt (7) moves backward along the slot of the seat cover (8) so that the end of the seat belt (7) moves away from the front end of the slot of the seat cover (8) which is moving backward and downward.

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