Safety belt assembly and safety belt massage control method

Abstract

The application discloses a safety belt assembly and a safety belt massage control method. The safety belt assembly comprises a woven belt component, a retractor assembly and an insertion plate. The end of the woven belt component is retracted in the retractor assembly, and a lock tongue on the woven belt component is clamped with the insertion plate. The safety belt assembly further comprises an air pressure control component. The woven belt component comprises a woven belt body, an air guide pipe group and a plurality of air bag groups. The plurality of air bag groups comprise a chest air bag group and an abdomen air bag group which are arranged at intervals along the length direction of the woven belt body. The air guide pipe group is arranged on the woven belt body in a partially embedded manner, and the air guide pipe group deforms along with the deformation of the woven belt body in the length direction of the woven belt body. The chest air bag group and the abdomen air bag group are respectively communicated with the air pressure control component through the air guide pipe group. The air pressure control component is used for adjusting the air pressure of the chest air bag group and the abdomen air bag group to massage the user wearing the woven belt component, and has the advantage of good comfort.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a seat belt assembly and a seat belt massage control method. Background Technology

[0002] Seatbelts are one of the most important components in a car, used to restrain occupants during a collision to prevent them from colliding with other parts of the vehicle or from secondary collisions that could result in injury or death. Figure 1 As shown, a traditional seatbelt includes a retractor 1, a traditional webbing 2, a guide ring assembly 3, a locking tongue 4, a retaining plate 5, and a buckle 6. The retractor 1 is mounted on a sheet metal 15, and a trim piece 16 is located on the sheet metal 15 near the retractor 1. The webbing 2 is pulled out of the retractor 1 and passes through the trim piece 16. In use, the retractor locks when the vehicle accelerates too much, the webbing is pulled out too quickly, or the vehicle angle changes significantly, restraining the occupant. However, because the seatbelt constantly restrains the user during use, prolonged wear can affect the user's comfort. Furthermore, in the event of a collision, due to inertia, the seatbelt can exert a significant pulling force between the occupants, potentially causing strangulation injuries.

[0003] Therefore, existing seat belts suffer from poor comfort and the potential to injure occupants. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor comfort and potential injury to occupants in the prior art with seat belts.

[0005] To address the aforementioned problems, embodiments of the present invention disclose a seatbelt assembly, comprising: a webbing component, a retractor assembly, and an insert plate; the end of the webbing component is wound into the retractor assembly, and a locking tongue on the webbing component engages with the insert plate; the seatbelt assembly further includes an air pressure control component; the webbing component includes a webbing body, an air duct assembly, and multiple airbag assemblies, the multiple airbag assemblies being arranged in the middle portion of the webbing body along its length direction, and including chest airbag assemblies and abdominal airbag assemblies spaced apart along the length direction of the webbing body; wherein,

[0006] The chest airbag group and the abdominal airbag group are arranged in a dotted pattern along the length of the webbing body, and the chest airbag group and the abdominal airbag group protrude from the surface of the webbing body.

[0007] The air duct assembly is partially embedded in the webbing body, and the air duct assembly deforms along the length of the webbing body as the webbing body deforms; furthermore, the chest airbag assembly and the abdominal airbag assembly are respectively connected to the air pressure control component through the air duct assembly, and the air pressure control component is used to adjust the air pressure of the chest airbag assembly and the abdominal airbag assembly to massage the user wearing the webbing component.

[0008] By adopting the above technical solution, since the webbing component in the seat belt assembly of this embodiment includes multiple airbag groups, the airbag groups include a chest airbag group and an abdominal airbag group. The chest airbag group and the abdominal airbag group are arranged in a dotted pattern along the length of the webbing body at intervals. Furthermore, an air pressure control component is provided to control the inflation or deflation of the airbag groups. With this structural arrangement, when the user wears the webbing component, the air pressure control component controls the air pressure of the airbags to massage the user wearing the webbing component, thereby ensuring the user's comfort.

[0009] In addition, since the chest airbag group and the abdominal airbag group are arranged in a dotted pattern along the length of the webbing body, the dotted distribution can avoid interference between multiple airbag groups during use. On the other hand, the dotted massage effect is better, especially since the dotted massage intensity is gentler than the whole design and will not affect the user's current actions, making it more suitable for users who drive or ride in a car. Furthermore, the dotted distribution of airbag groups can more accurately squeeze and massage different acupoints on the user's body.

[0010] Furthermore, the air duct assembly is partially embedded in the webbing body, and deforms along the length of the webbing body as the webbing body deforms. Since the webbing itself lengthens or shortens in real time according to the user's posture during use, this embodiment, by partially embedding the air duct assembly into the webbing body, allows the air duct assembly and the webbing body to form a unified whole. This ensures better coordination between the air duct assembly and the webbing body, effectively avoiding interference with the normal use of the seatbelt due to the air duct assembly's placement. On the other hand, because the air duct assembly... The integrity of the air tube assembly is crucial for the normal use of the seat belt assembly provided in this embodiment. However, since many components of the seat belt assembly may move during use, this will inevitably affect the normal use of the air tube assembly. In particular, when the user pulls on the webbing body, there is a high risk of tearing the air tube assembly. This embodiment arranges the air tube assembly in a partially embedded manner on the webbing body, so that the air tube assembly and the webbing body form a whole. The webbing itself will extend or shorten in real time according to the user's posture changes, thereby effectively avoiding this problem.

[0011] Furthermore, the webbing component in the seat belt assembly of this embodiment includes multiple airbag groups, including a chest airbag group and an abdominal airbag group. After the user puts on the webbing body, the chest airbag group can absorb energy after an emergency occurs, thereby reducing the occupant's chest pressure.

[0012] Furthermore, another embodiment of the present invention provides a seat belt assembly, wherein the chest airbag assembly and the abdominal airbag assembly each include a plurality of pouches evenly distributed on the webbing body, and each pouch is connected to the air pressure control component through the air duct assembly.

[0013] Using the above technical solution, both the chest airbag assembly and the abdominal airbag assembly include multiple pouches evenly distributed on the webbing body, and each pouch is connected to the air pressure control component through an air duct assembly. This structure allows each airbag to be individually controlled by the air pressure control component, which can further improve the accuracy of the airbag assembly in the seat belt assembly when the webbing body is worn on the user, allowing it to accurately squeeze and massage different acupoints.

[0014] Furthermore, another embodiment of the present invention provides a seat belt assembly, wherein the air duct assembly includes an input section, an intermediate section, and an output section; wherein,

[0015] The input section has a spiral structure, and one end of the input section is connected to the air pressure control component, while the other end extends to the outer wall of the webbing body. The middle section includes multiple branch pipes, which are woven into the webbing body and extend along the length of the webbing body. One end of each branch pipe is connected to the other end of the input section. The output section connects the other end of the corresponding branch pipe to the corresponding pouch.

[0016] By adopting the above technical solution, the air duct assembly is divided into an input section, an intermediate section, and an output section. With this structure, the input section is located outside the webbing body, the intermediate section is woven into the webbing body, and the output end needs to be located outside the webbing body. The input section can be designed as a single piece, and the intermediate section, being woven into the webbing body, needs to be as small as possible. Therefore, this embodiment uses multiple branch pipes. The output end, needing to connect to the airbag separately, also requires multiple branch pipes. Since the structures of each part of the air duct assembly are not identical, this embodiment, by dividing the air duct assembly into an input section, an intermediate section, and an output section, facilitates the design of the air duct assembly structure.

[0017] In addition, because the input section has a spiral structure, this structure ensures that the spiral air tube has sufficient length after the webbing body is worn, even when it is not being worn or during the wearing process, as the webbing is pulled out of the retractor.

[0018] Furthermore, another embodiment of the present invention provides a seat belt assembly in which the input section, the intermediate section, and the output section are integrally formed; and,

[0019] The sac is configured with a "scale-like" structure.

[0020] By adopting the above technical solution, this embodiment integrates the input section, intermediate section and output section into one piece. This method can ensure the sealing and reliability of the air duct assembly. The bag is set with a "scale-like" structure, which makes it easier to fix the bag to the webbing body and improves the aesthetics of the webbing body.

[0021] Furthermore, another embodiment of the present invention provides a seat belt assembly, wherein the air pressure control component includes an air pump, the air outlet of which is connected to one end of the input section;

[0022] The seat belt assembly also includes a control component and a control valve. The control component is electrically connected to the air pump and the control valve, respectively. The control valve is located between the other end of the input end and one end of the plurality of branch pipes. The control valve has an air inlet and a plurality of air outlets. The air inlet of the control valve is connected to the other end of the input section, and each air outlet of the control valve is connected to one end of the corresponding branch pipe.

[0023] The seat belt assembly also includes control components and control valves, which improve the controllability of each bladder by setting up the control valves and control components.

[0024] In addition, after the user fastens or unfastens the seat belt, a signal can be input to the control valve to automatically control the inflation and deflation of the chest airbag and abdominal airbag groups. No additional switches are required, saving costs and design space. At the same time, it ensures that the chest airbag and abdominal airbag groups of the seat belt are always inflated when the occupant is using the seat belt, ensuring the safety of the occupant during the journey. When the occupant is not using the airbag, it can automatically deflate, ensuring that the webbing does not take up space when it is retracted.

[0025] Furthermore, another embodiment of the present invention provides a seat belt assembly, wherein the retractor assembly includes an upper retractor and a lower retractor, one end of the webbing component is wound into the upper retractor, the other end of the webbing component passes through a guide component and is wound into the lower retractor, the latch is fixed to the middle portion of the webbing component, and the chest airbag assembly is arranged on the webbing body near the upper retractor, and the abdominal airbag assembly is arranged on the webbing body near the lower retractor.

[0026] By adopting the above technical solution, this embodiment is equipped with two retractors. When the webbing body is retracted, the length of webbing that each retractor needs to wind is shorter than the traditional webbing body length. Air ducts and bladders are arranged at the webbing positions corresponding to the shoulder straps and abdomen. Because the amount of webbing retracted is small, the retractors have enough space to accommodate it. This problem can be solved without redeveloping other parts of the vehicle body. It has the advantages of saving space, low development cost and short cycle time, while also ensuring the safety of the seat belt assembly.

[0027] Furthermore, due to the numerous movements of various components in the seatbelt assembly during use, the normal operation of the air hose assembly is inevitably affected, especially when the user pulls on the webbing itself, which could potentially break the air hose assembly. Traditional seatbelt assemblies only have one retractor; one end of the webbing is wound inside the retractor, and the other end is fixed to a lower mounting plate. This limited range of motion means that excessive force could break the air hose assembly. Therefore, the seatbelt assembly in this embodiment further reduces the likelihood of this problem occurring.

[0028] Furthermore, since the seat belt assembly provided in this embodiment has a greater range of motion in use, the seat belt assembly in this embodiment provides better passenger comfort under normal circumstances compared to the structure of a conventional seat belt assembly.

[0029] Furthermore, another embodiment of the present invention provides a seat belt massage control method, wherein the seat belt massage control method employs a seat belt assembly with the above-described structure, and the seat belt massage control method includes the following steps:

[0030] Obtain the vehicle's status information and determine, based on the status information, whether the latch on the webbing component is engaged with the insert plate;

[0031] If it is determined that the locking tongue on the webbing component is engaged with the insert plate, then the chest airbag assembly and the abdominal airbag assembly are controlled to be in an inflatable state.

[0032] If it is determined that the locking tongue on the webbing component is not engaged with the insert plate, then the chest airbag assembly and the abdominal airbag assembly are controlled to be in a deflated state.

[0033] Using the above technical solution, the seat belt massage control method provided in this embodiment uses a seat belt assembly with the above structure. During use, when the webbing component is worn on the user, the chest airbag group and the abdominal airbag group can be controlled to be in an inflated state. The chest airbag group and the abdominal airbag group can protect the user in an emergency, especially the chest airbag group can reduce the occupant's chest pressure.

[0034] Furthermore, another embodiment of the present invention provides a seat belt massage control method when both the chest airbag group and the abdominal airbag group include multiple evenly distributed sacs;

[0035] If it is determined that the latch on the webbing component is engaged with the insert plate, then it is determined whether to enter the massage mode based on the status information;

[0036] If so, then each of the aforementioned sacs is sequentially inflated or deflated according to the preset massage rules;

[0037] If not, then control the multiple bags to be inflated.

[0038] By adopting the above technical solution, since it has a massage mode, when it is determined that the massage mode needs to be entered, the air pressure control component controls the bag to inflate or deflate according to the preset massage rules to massage the user wearing the webbing component, thereby ensuring the user's comfort.

[0039] Furthermore, another embodiment of the present invention provides a seatbelt massage control method, wherein the massage rules include:

[0040] The inflation or deflation of each of the aforementioned bags is controlled sequentially according to a "wave-like" pattern; or,

[0041] The "rotation" mechanism sequentially controls the inflation or deflation of each of the aforementioned sacs.

[0042] By adopting the above technical solution, the user's comfort can be improved by controlling the pouch to follow a "wave-like" or "swirling" pattern.

[0043] Furthermore, another embodiment of the present invention provides a seat belt massage control method, wherein if it is determined that the latch on the webbing component is engaged with the insert plate, then the vehicle is determined to have been involved in a collision based on the status information;

[0044] If so, then each of the bags is deflated after a preset time threshold range;

[0045] If not, the airbag is controlled to be inflated.

[0046] Using the above technical solution, the seatbelt massage control method in this embodiment can reduce the chest pressure of the occupant when a car collision is detected. However, during a car collision, the occupant may experience forward displacement due to the deflation of the abdominal massage airbag (a situation where the abdominal webbing suddenly slips upwards in a short time due to slackness, causing an increase in the occupant's forward movement). Therefore, the airbag should be deflated within a certain period of time (e.g., 2 seconds) after the collision begins to ensure that the massage function is off while the seatbelt is performing its restraint function, and that the airbag is not in the process of deflation, thereby avoiding the occupant forward displacement problem caused by this design.

[0047] Other features and corresponding beneficial effects of the present invention will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in the specification. Attached Figure Description

[0048] Figure 1 This is a structural diagram of a seatbelt assembly in the prior art;

[0049] Figure 2 This is a schematic diagram of the overall structure of the seat belt assembly provided in an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the air duct assembly and chest airbag assembly in the seat belt assembly provided in an embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the air duct assembly and abdominal airbag assembly in the seat belt assembly provided in an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the massage rules in the seat belt massage control method provided in an embodiment of the present invention;

[0053] Figure 6 The control flowchart is provided for the seat belt massage control method in the embodiment of the present invention.

[0054] Explanation of reference numerals in prior art drawings:

[0055] 1. Retractor; 2. Webbing; 3. Guide ring assembly; 4. Locking tongue; 5. Fixing plate; 6. Locking buckle; 15. Sheet metal; 16. Trim.

[0056] Explanation of reference numerals in the accompanying drawings of this invention:

[0057] 1. Upper retractor; 3. Guide ring; 4. Locking tongue; 6. Locking buckle; 7. Lower retractor; 8. Webbing body; 9. Air pump; 10. Control valve; 101. Electrical control unit; 102. Chest airbag valve port; 103. Abdominal airbag valve port; 11. Wiring harness; 111. Control valve wiring harness; 112. Air pump wiring harness; 12. Air duct assembly; 121. Branch pipe; 13. Chest airbag assembly; 14. Abdominal airbag assembly; 161. Ornament guide opening; 17. Control components; 18. Massage switch. Detailed Implementation

[0058] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0059] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the present invention.

[0061] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0062] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0063] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0064] One embodiment of the present invention provides a seat belt assembly, such as Figures 2-4As shown, it includes: a webbing component, a retractor assembly, and an insert plate; the end of the webbing component is wound into the retractor assembly, and the locking tongue 4 on the webbing component engages with the insert plate; the seat belt assembly also includes an air pressure control component 17; the webbing component includes a webbing body 8, an air duct assembly 12, and multiple airbag assemblies, the multiple airbag assemblies being arranged in the middle portion of the webbing body 8 along its length direction, and including a chest airbag assembly 13 and an abdominal airbag assembly 14 spaced apart along the length direction of the webbing body 8.

[0065] Specifically, in this embodiment, the chest airbag group 13 and the abdominal airbag group 14 are arranged in a dotted pattern along the length of the webbing body 8, and both the chest airbag group 13 and the abdominal airbag protrude from the surface of the webbing body 8.

[0066] More specifically, in this embodiment, the air duct assembly 12 is partially embedded in the webbing body 8, and the air duct assembly 12 deforms along the length of the webbing body 8 as the webbing body 8 deforms; furthermore, the chest airbag assembly 13 and the abdominal airbag assembly 14 are respectively connected to the air pressure control component 17 through the air duct assembly 12, and the air pressure control component 17 is used to adjust the air pressure of the chest airbag assembly 13 and the abdominal airbag assembly 14 to massage the user wearing the webbing component.

[0067] More specifically, in this embodiment, the webbing component in the seat belt assembly includes multiple airbag groups, including a chest airbag group 13 and an abdominal airbag group 14. The chest airbag group 13 and the abdominal airbag group 14 are arranged in a dotted pattern along the length of the webbing body 8 at intervals. A pressure control component 17 is also provided to control the inflation or deflation of the airbag groups. With this structure, when the user wears the webbing component, the pressure control component 17 controls the air pressure of the airbags to massage the user wearing the webbing component, thereby ensuring the user's comfort.

[0068] More specifically, in this embodiment, since the chest airbag group 13 and the abdominal airbag group 14 are arranged in a dotted pattern along the length of the webbing body 8, the dotted distribution can avoid interference between multiple airbag groups during use. On the other hand, the dotted massage effect is better, especially since the dotted massage intensity is gentler than the overall design and will not affect the user's ongoing actions, making it more suitable for users who are driving or riding in a car. Furthermore, the dotted airbag group can more accurately squeeze and massage different acupoints on the user's body.

[0069] More specifically, in this embodiment, the air duct assembly 12 is partially embedded in the webbing body 8, and the air duct assembly 12 deforms along the length of the webbing body 8 as the webbing body 8 deforms. Since the webbing itself will lengthen or shorten in real time with the user's posture changes during use, this embodiment arranges the air duct assembly 12 in a partially embedded manner on the webbing body 8, so that the air duct assembly 12 and the webbing body 8 form a whole. On the one hand, the air duct assembly 12 and the webbing body 8 have good motion coordination, which can effectively avoid the problem of interference to the normal use of the seat belt caused by the setting of the air duct assembly 12. On the other hand, the integrity of the air duct assembly 12 is crucial to the normal use of the seat belt assembly provided in this embodiment. However, since many components of the seat belt assembly may undergo a lot of movement during use, this will inevitably affect the normal use of the air duct assembly 12. In particular, when the user pulls the webbing body 8, there is a high risk of tearing the air duct assembly 12. This embodiment arranges the air duct assembly 12 in a partially embedded manner on the webbing body 8, so that the air duct assembly 12 and the webbing body 8 form a whole. The webbing body 8 will extend or shorten in real time according to the user's posture changes, thereby effectively avoiding this problem.

[0070] More specifically, the webbing component in the seat belt assembly in this embodiment includes multiple airbag groups, including a chest airbag group 13 and an abdominal airbag group 14. After the user puts on the webbing body 8, the chest airbag group can absorb energy after an emergency occurs, thereby reducing the occupant's chest pressure.

[0071] More specifically, in this embodiment, the locking tongue 4 in the webbing component can be any of the various models of existing seat belt locking tongues, dynamic locking tongues, etc. The insert plate is set as a buckle 6, the structure and setting of which are similar to existing seat belt assemblies. It can be any of the various models of mature resistive buckle 6, Hall switch buckle 6 (a buckle 6 that can output a signal on whether the occupant is wearing a seat belt), etc. The specific design can be set according to actual design and usage requirements. This embodiment does not limit this.

[0072] To integrate the air duct assembly 12, the webbing body 8 can be made using a polyester yarn weaving process. During the weaving process, the air duct assembly 12 is woven in as warp yarn, which can ensure that the air duct assembly 12 is evenly and firmly arranged on the webbing body 8. When it reaches the corresponding position, one end of the air duct assembly 12 extends out to connect to the chest airbag assembly 13 or the abdominal airbag assembly 14.

[0073] Furthermore, such as Figure 2 As shown, the seat belt assembly also includes a guide ring 3, which has a metal insert inside and a plastic coating on the outside, and is fixed to the body sheet metal 15 (see the prior art for details). Figure 1Considering that the webbing body 8 becomes thicker after integrating the air duct assembly 12, the opening of the guide ring 3 can be adaptively enlarged, for example, by 2cm. The increase in size can be equal to the diameter of the corresponding position of the air duct assembly 12. This embodiment does not limit this to a single dimension.

[0074] Furthermore, another embodiment of the present invention provides a seat belt assembly, such as Figure 2 As shown, both the chest airbag assembly 13 and the abdominal airbag assembly 14 include multiple bags evenly distributed on the webbing body 8, and each bag is connected to the air pressure control component 17 through the air duct assembly 12.

[0075] Specifically, in this embodiment, both the chest airbag assembly 13 and the abdominal airbag assembly 14 include multiple pouches evenly distributed on the webbing body 8, and each pouch is connected to the air pressure control component 17 through the air duct assembly 12. This structure allows each airbag to be individually controlled by the air pressure control component 17, which can further improve the accuracy of the airbag assembly in the seat belt assembly when the webbing body 8 is worn on the user, allowing it to perform precise compression and massage on different acupoints.

[0076] More specifically, in this embodiment, the airbag is made of TPU material and manufactured by injection molding, and is heat-fused to the air duct assembly 12; the number of airbags is determined according to the area to be covered on the webbing body 8, and they are stacked on the webbing body 8, with the convex surface adjacent to the webbing body 8 and the concave surface in contact with the occupant. This arrangement is similar to adding a layer of airbag armor between the human body and the seat belt webbing, which reduces the amount of chest compression and protects the occupant in the event of an accident.

[0077] More specifically, in this embodiment, the chest airbag group 13 and the abdominal airbag group 14 can be any number including 4 airbags, 6 airbags, 7 airbags, etc. The specific number should be set according to the actual design and usage requirements (e.g., the area to be covered on the webbing body 8). This embodiment does not limit this to a single number.

[0078] It is necessary to understand that, such as Figure 2 As shown, the abdominal airbag assembly 14 should be mounted on the webbing body 8 at the center of the occupant's abdomen, and the chest airbag assembly 13 should be mounted on the webbing body 8 at the center of the occupant's chest.

[0079] Furthermore, another embodiment of the present invention provides a seat belt assembly, such as Figure 2 As shown, the air duct assembly 12 includes an input section, an intermediate section, and an output section.

[0080] Specifically, in this embodiment, the input section has a spiral structure, and one end of the input section is connected to the air pressure control component 17, while the other end extends to the outer wall surface of the webbing body 8. The middle section includes multiple branch pipes 121, which are woven onto the webbing body 8 and extend along the length of the webbing body 8. One end of each branch pipe 121 is connected to the other end of the input section, and the output section connects the other end of the corresponding branch pipe 121 to the corresponding pouch.

[0081] More specifically, in this embodiment, the air duct assembly 12 is divided into an input section, an intermediate section, and an output section. With this structure, the input section is located outside the webbing body 8, the intermediate section is woven inside the webbing body 8, and the output end needs to be located outside the webbing body 8. The input section can be designed as a single unit, and the intermediate section, being woven inside the webbing body 8, needs to be as small as possible. Therefore, this embodiment uses multiple branch pipes 121. The output end, needing to connect to the airbag separately, also requires multiple branch pipes 121. Since the structures of the different parts of the air duct assembly 12 are not identical, this embodiment, by dividing the air duct assembly 12 into an input section, an intermediate section, and an output section, facilitates the design of the air duct assembly 12's structure.

[0082] More specifically, in this embodiment, since the input section has a spiral structure, the spiral air tube can ensure that the air tube assembly 12 has sufficient length after being worn, when the webbing body 8 is not being worn or when the webbing is pulled out of the retractor.

[0083] More specifically, in this embodiment, when the air duct assembly 12 is processed onto the webbing body 8, the input section branches from the control valve 10 to the webbing body 8 to form an intermediate section, and the input section is in the shape of a helical spring; multiple branch pipes 121 of the intermediate section are woven into the webbing body 8 and extend along the length direction of the webbing body 8; the output end extends out from the webbing body 8 and also has multiple branch pipes 121 that are connected to each bag respectively.

[0084] It should be understood that, in this embodiment, the number of branch tubes 121 should be determined according to the number of pouches, and this embodiment does not impose a unique limitation on this.

[0085] More specifically, in this embodiment, the air delivery tube assembly 12 can be made of mature silicone tubing or a more flexible material. The diameter and length of the air delivery tube can be adjusted according to the number of bags, the specific length from the retractor to the bag, and the inflation speed. In this embodiment, the diameter is preferably greater than 1 mm, and the number of branches 121 and connected bags to each air delivery tube does not exceed 3 to ensure the response speed of inflation and deflation.

[0086] Furthermore, another embodiment of the present invention provides a seat belt assembly, such as Figures 2-4As shown, the input segment, intermediate segment, and output segment are integrally formed; the capsule is designed with a "scale-like" structure.

[0087] Specifically, in this embodiment, the input section, intermediate section and output section are integrally formed. This method can ensure the sealing and reliability of the air duct assembly 12. The bag is set with a "scale-like" structure. This structure makes it easier to fix the bag to the webbing body 8 and improves the aesthetics of the webbing body 8.

[0088] Of course, the pouch in this embodiment is not limited to a "scale-like" structure, but can also be set to other shapes, such as a foam shape that fits the human body. The specific shape can be set according to actual needs, and this embodiment does not limit it to a single shape.

[0089] Furthermore, another embodiment of the present invention provides a seat belt assembly in which the air pressure control component 17 includes an air pump 9, the outlet of which is connected to one end of the input section.

[0090] Specifically, in this embodiment, the seat belt assembly further includes a control component 17 and a control valve 10. The control component 17 is electrically connected to the air pump 9 and the control valve 10 respectively. The control valve 10 is disposed between the other end of the input end and one end of a plurality of branch pipes 121. The control valve 10 has an air inlet and a plurality of air outlets. The air inlet of the control valve 10 is connected to the other end of the input section, and each air outlet of the control valve 10 is connected to one end of the corresponding branch pipe 121.

[0091] More specifically, in this embodiment, the seat belt assembly also includes a control component 17 and a control valve 10. The control valve 10 and the control component 17 can make the controllability of each pocket better.

[0092] More specifically, in this embodiment, after the user fastens or unfastens the seat belt, a signal input can be sent to the control valve 10 to automatically control the inflation and deflation of the chest airbag assembly 13 and the abdominal airbag assembly 14. No additional switches are required, saving costs and design space. At the same time, it ensures that the chest airbag assembly 13 and the abdominal airbag assembly 14 of the seat belt are always inflated when the occupant is using the seat belt, ensuring the safety of the occupant during the journey. When the occupant is not using the seat belt, it can automatically deflate, ensuring that the webbing does not take up space when it is retracted.

[0093] More specifically, in this embodiment, the air pump 9 can be a model with a rated voltage of 13.5V (operating voltage 9~16V) and an air flow rate of 5L / min or higher. The specific model can be set according to actual design and usage requirements, and this embodiment does not limit it.

[0094] More specifically, in this embodiment, the control valve 10 may be a solenoid valve, which integrates an electronic control unit 101, i.e., it is controlled and has multiple valve ports. The specific model is not limited in this embodiment.

[0095] Furthermore, the control valve 10, control component 17, and air pump 9 are connected via wiring harness 11; specifically, as shown... Figure 2 As shown, the electronic control unit 101 in the control valve 10 is connected to the control component 17 via the control valve wiring harness 111, and the electronic control unit 101 in the control valve 10 is connected to the air pump 9 via the air pump wiring harness 112.

[0096] Furthermore, such as Figure 2 As shown, the control valve 10 also has a chest airbag valve port 102 and an abdominal airbag valve port 103; wherein, the control valve 10 is connected to the chest airbag assembly 13 through the chest airbag valve port 102, and the control valve 10 is connected to the abdominal airbag assembly 14 through the abdominal airbag valve port 103.

[0097] Furthermore, another embodiment of the present invention provides a seat belt assembly, wherein the retractor assembly includes an upper retractor 1 and a lower retractor 7, one end of the webbing component is wound into the upper retractor 1, the other end of the webbing component passes through the guide component and is wound into the lower retractor 7, the locking tongue 4 is fixed to the middle part of the webbing component, and the chest airbag assembly 13 is arranged on the webbing body 8 near the upper retractor 1, and the abdominal airbag assembly 14 is arranged on the webbing body 8 near the lower retractor 7.

[0098] Specifically, this embodiment is equipped with two retractors. When the webbing body 8 is retracted, the length of webbing that each retractor needs to wind is shorter than the length of the traditional webbing body 8. Air ducts and bladders are arranged at the webbing positions corresponding to the shoulder straps and abdomen. When the webbing body 8 is retracted, the small amount of retraction ensures that the retractor has enough space to accommodate it. This problem can be solved without redeveloping other parts of the vehicle body. It has the advantages of saving space, low development cost and short cycle time, while also ensuring the safety of the seat belt assembly.

[0099] More specifically, because many components of the seatbelt assembly may move significantly during use, this will inevitably affect the normal operation of the air duct assembly 12. Especially when the user pulls on the webbing body 8, there is a high risk of breaking the air duct assembly 12. Traditional seatbelt assemblies only have one retractor; one end of the webbing body 8 is wound into the retractor, and the other end is fixed to the lower mounting plate. Its range of motion is limited, and excessive force may break the air duct assembly 12. Therefore, the seatbelt assembly in this embodiment further reduces the probability of this problem occurring.

[0100] More specifically, since the seat belt assembly provided in this embodiment has a larger range of motion in use, the seat belt assembly in this embodiment provides better passenger comfort under normal circumstances compared to the structure of a traditional seat belt assembly.

[0101] More specifically, in this embodiment, the upper retractor 1 is fixed to the upper part of the sheet metal 15, and the lower retractor 7 is fixed to the lower part of the sheet metal 15 by replacing the fixing piece. The upper retractor 1 and the lower retractor 7 can be any type such as a pre-tensioning force-limiting retractor or an electric retractor. When worn, the two retractors extend the webbing at the same time, which can ensure that the webbing extension length in each retractor is shorter, avoiding the problem that the webbing body 8 becomes thick and the retractor cannot accommodate it after the air duct assembly 12 is integrated on the webbing body 8.

[0102] Furthermore, such as Figure 2 As shown, in this embodiment, a decorative element 16 is also provided on the sheet metal 15 near the upper retractor 1 (see the prior art for details). Figure 1 Specifically, it can be fixedly connected to the B-pillar sheet metal of the car through buckles, bolts, etc., and the trim 16 has a trim guide opening 161. After the webbing body 8 is pulled out from the lower retractor 7, it passes through the trim guide opening 161 to ensure the stability of the webbing body 8 and to ensure the overall aesthetics of the seat belt assembly.

[0103] Furthermore, another embodiment of the present invention provides a seat belt massage control method, which employs a seat belt assembly with the above-described structure, and includes the following steps:

[0104] like Figure 6 As shown, the status information of the car is obtained, and the locking tongue 4 on the webbing component is determined to be engaged with the insert plate based on the status information;

[0105] If it is determined that the locking tongue 4 on the webbing component is engaged with the insert plate, then the chest airbag assembly 13 and the abdominal airbag assembly 14 are controlled to be in an inflated state.

[0106] If it is determined that the locking tongue 4 on the webbing component is not engaged with the insert plate, then the chest airbag assembly 13 and the abdominal airbag assembly 14 are controlled to be in the deflated state.

[0107] Specifically, the seat belt massage control method provided in this embodiment uses a seat belt assembly with the above-described structure. During use, when the webbing component is worn on the user, the chest airbag assembly 13 and the abdominal airbag assembly 14 can be controlled to be in an inflated state. The chest airbag assembly 13 and the abdominal airbag assembly 14 can protect the user in an emergency, especially the chest airbag assembly 13 can reduce the occupant's chest pressure.

[0108] More specifically, in this embodiment, the status information includes insert plate engagement information. The insert plate is preferably a resistive latch 6. Since the latch 6 can output a signal indicating whether the occupant is wearing a seat belt, the control component 17 may use this signal to determine whether the latch 6 is engaged with the insert plate.

[0109] Furthermore, another embodiment of the present invention provides a seat belt massage control method when both the chest airbag group 13 and the abdominal airbag group 14 include multiple evenly distributed sacs;

[0110] If it is determined that the locking tongue 4 on the webbing component is engaged with the insert plate, then determine whether to enter the massage mode based on the status information.

[0111] If so, then each sac will be inflated or deflated sequentially according to the preset massage rules;

[0112] If not, then control multiple bags to be inflated.

[0113] Specifically, in this embodiment, since it has a massage mode, when it is determined that it is necessary to enter the massage mode, the air pressure control component 17 controls the bag to inflate or deflate according to the preset massage rules to massage the user wearing the webbing component, thereby ensuring the user's comfort.

[0114] More specifically, in this embodiment, whether to enter the massage mode should be actively selected according to the user's actual needs. When a massage is needed, the user can turn on the massage mode through the operation control component 17. Similarly, when not needed, the user can turn off the massage mode through the operation control component 17.

[0115] Furthermore, in this embodiment, see... Figure 2 A massage switch 18 should be provided, which is connected to the wiring harness of the control component 17. When massage is needed, the user can operate the massage switch 18, which transmits an activation signal to the control component 17, thereby enabling the control component 17 to activate the massage mode according to the signal. Similarly, when massage is not needed, the user can operate the massage switch 18 to turn off the massage mode.

[0116] Furthermore, another embodiment of the present invention provides a seatbelt massage control method, such as... Figure 5 As shown, the massage rules include:

[0117] The inflation or deflation of each sac is controlled sequentially according to a "wave-like" pattern; or,

[0118] The inflation or deflation of each sac is controlled sequentially according to the "rotation shape".

[0119] Specifically, in this embodiment, the user's comfort can be improved by controlling the pouch to follow a "wave-like" or "swirling" pattern.

[0120] More specifically, in this embodiment, the control component 17 may pre-store the two massage rules mentioned above for the user to select when using it, or it may pre-store only one of them. The specific setting should be based on actual needs, and this embodiment does not limit it.

[0121] Furthermore, another embodiment of the present invention provides a seat belt massage control method, wherein if it is determined that the locking tongue 4 on the webbing component is engaged with the insert plate, the system determines whether the vehicle has been involved in a collision based on the status information.

[0122] If so, then each sac will deflate after a preset time threshold range;

[0123] If not, the airbag is kept in an inflated state.

[0124] Specifically, in this embodiment, the seatbelt massage control method reduces chest pressure in the occupant when a car collision is detected. However, during a collision, the occupant may experience forward displacement due to the deflation of the abdominal massage airbag (a situation where the abdominal webbing suddenly slips upward due to slackness, causing an increase in the occupant's forward movement). Therefore, the airbag should be deflated within a certain period (e.g., 2 seconds) after the collision begins to ensure that the massage function is off while the seatbelt is providing restraint, and that the airbag is not in the process of deflation, thereby avoiding the occupant forward displacement problem caused by this design.

[0125] More specifically, in this embodiment, when a car collides, similar to the prior art, the vehicle controller can obtain its collision information, and the control component 17 can obtain the car information from the vehicle controller to determine whether the car has collided.

[0126] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A seat belt assembly, comprising: The seatbelt assembly comprises a webbing component, a retractor assembly, and an insert plate; the end of the webbing component is wound into the retractor assembly, and a locking tongue on the webbing component engages with the insert plate; characterized in that the seatbelt assembly further includes an air pressure control component; the webbing component includes a webbing body, an air duct assembly, and multiple airbag assemblies, the multiple airbag assemblies being arranged in the middle portion of the webbing body along its length direction, and including chest airbag assemblies and abdominal airbag assemblies spaced apart along the length direction of the webbing body; wherein... The chest airbag group and the abdominal airbag group are arranged in a dotted pattern along the length of the webbing body, and both the chest airbag group and the abdominal airbag group protrude from the surface of the webbing body. The air duct assembly is partially embedded in the webbing body, and deforms along the length of the webbing body as the webbing body deforms. Furthermore, the chest airbag assembly and the abdominal airbag assembly are respectively connected to the air pressure control component via the air duct assembly. The air pressure control component is used to adjust the air pressure of the chest airbag assembly and the abdominal airbag assembly to provide massage to the user wearing the webbing component. Both the chest airbag group and the abdominal airbag group include multiple bags evenly distributed on the webbing body, and each bag is connected to the air pressure control component through the air guide tube group. The air duct assembly includes an input section, an intermediate section, and an output section. The input section has a spiral structure, with one end connected to the air pressure control component and the other end extending to the outer wall of the webbing body. The intermediate section includes multiple branch pipes woven into the webbing body and extending along the length of the webbing body, with one end of each branch pipe connected to the other end of the input section. The output section connects the other end of the corresponding branch pipe to the corresponding pouch.

2. The seat belt assembly as described in claim 1, characterized in that, The input segment, the intermediate segment, and the output segment are integrally formed; and... The sac is configured with a "scale-like" structure.

3. The seat belt assembly as described in claim 1, characterized in that, The air pressure control component includes an air pump, and the air outlet of the air pump is connected to one end of the input section; The seat belt assembly also includes a control component and a control valve. The control component is electrically connected to the air pump and the control valve, respectively. The control valve is located between the other end of the input section and one end of the plurality of branch pipes. The control valve has an air inlet and a plurality of air outlets. The air inlet of the control valve is connected to the other end of the input section, and each air outlet of the control valve is connected to one end of the corresponding branch pipe.

4. The seat belt assembly as described in any one of claims 1-3, characterized in that, The retractor assembly includes an upper retractor and a lower retractor. One end of the webbing component is wound into the upper retractor, and the other end of the webbing component passes through a guide component and is wound into the lower retractor. The locking tongue is fixed to the middle part of the webbing component. The chest airbag assembly is arranged on the webbing body near the upper retractor, and the abdominal airbag assembly is arranged on the webbing body near the lower retractor.

5. A seatbelt massage control method, characterized in that, The seatbelt massage control method uses the seatbelt assembly according to any one of claims 1-4, and the seatbelt massage control method includes the following steps: Obtain the vehicle's status information and determine, based on the status information, whether the latch on the webbing component is engaged with the insert plate; If it is determined that the locking tongue on the webbing component is engaged with the insert plate, then the chest airbag assembly and the abdominal airbag assembly are controlled to be in an inflatable state. If it is determined that the locking tongue on the webbing component is not engaged with the insert plate, then the chest airbag assembly and the abdominal airbag assembly are controlled to be in a deflated state.

6. The seatbelt massage control method as described in claim 5, characterized in that, When both the chest airbag group and the abdominal airbag group include multiple evenly distributed airbags; If it is determined that the latch on the webbing component is engaged with the insert plate, then it is determined whether to enter the massage mode based on the status information; If so, then each of the aforementioned sacs is sequentially inflated or deflated according to the preset massage rules; If not, then control the multiple bags to be inflated.

7. The seatbelt massage control method as described in claim 6, characterized in that, The massage rules include: The inflation or deflation of each of the aforementioned bags is controlled sequentially according to a "wave-like" pattern; or, The "rotation" mechanism sequentially controls the inflation or deflation of each of the aforementioned sacs.

8. The seatbelt massage control method as described in claim 6 or 7, characterized in that, If it is determined that the latch on the webbing component is engaged with the insert plate, then it is determined whether the car has been involved in a collision based on the status information. If so, then each of the bags is deflated after a preset time threshold range; If not, the airbag is controlled to be inflated.

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