Vehicle seat configurations with restraint configurations and restraint configurations
By constructing a guiding element coupled with webbing on the airbag module, and combining it with a gripping mechanism and hook and loop fasteners, the problem of guiding and maintaining the airbag after it has deployed in a motor vehicle has been solved, thus improving the deployment accuracy of the airbag and the occupant protection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AUTOLIV DEV AB
- Filing Date
- 2021-11-23
- Publication Date
- 2026-07-31
AI Technical Summary
In the prior art, airbags are difficult to accurately guide to a preset position and maintain after deployment in a motor vehicle, and are prone to interfering with the occupants or vehicle structure during an accident.
A guiding element is constructed on the airbag module and coupled with the webbing of the seat belt configuration. The guiding element guides the airbag to deploy along the webbing, and the airbag is kept in the deployed position by the gripping mechanism and the hook and loop fastener. Different arrangement methods are combined to ensure the coordinated deployment of the airbag and the webbing.
This ensures that the airbags deploy accurately and remain in the preset position during an accident, reducing interference with occupants and vehicle structure, and improving safety and occupant protection.
Smart Images
Figure CN116529129B_ABST
Abstract
Description
[0001] manual
[0002] This invention relates to a restraint configuration for a motor vehicle, the restraint configuration having a seat belt configuration and at least one airbag module, wherein the seat belt configuration includes at least webbing and a webbing retractor, and wherein the at least one airbag module includes at least one airbag. In particular, this invention relates to a vehicle seat configuration having a backrest, a seat (hereinafter also referred to as a seat cushion), and a restraint configuration.
[0003] As is well known, motor vehicles are equipped with seat belt configurations and airbag modules that are independent of the seat belt configurations, so that the airbags of the seat belt configurations and the airbag modules can work independently of each other. In the event of an accident, the triggering of the airbag is coordinated with the tensioning of the webbing (in terms of time).
[0004] The current goal is to integrate both the seatbelt configuration and the airbag module into the vehicle seat. Therefore, known solutions include integrating the airbag module, particularly the side edge, of the seat back, allowing the airbag to deploy between the occupant and the vehicle. However, guiding the deployed airbag to its intended position and maintaining it there, if necessary, is often challenging in this process.
[0005] Furthermore, it is known, for example, to integrate the airbag module into the webbing, thereby positioning the deployed airbag at a predetermined position relative to the occupant due to its placement within the webbing.
[0006] In view of this, the object of the present invention is to eliminate the disadvantages described in conjunction with the prior art, and in particular to provide a restraint configuration and a vehicle seat configuration having such a restraint configuration, which guides the deployment of the airbag in a preset manner and, if necessary, keeps the airbag in the deployed position.
[0007] The feasible solutions of the present invention for achieving the aforementioned specific objectives are defined in the corresponding independent claims. Advantageous improvements of the invention, and other inventions as appropriate, are also given in the dependent claims and the description, wherein the various features can be combined with each other in a technically reasonable manner.
[0008] The solution of the present invention for achieving the above objectives is particularly a constraint configuration having the features described at the beginning of this document, wherein a guiding element is constructed on the airbag of the airbag module, the guiding element being coupled to the webbing of the seat belt configuration, thereby guiding the airbag along the webbing by means of the guiding element during airbag deployment.
[0009] The solution of the present invention for achieving the above-mentioned objectives also lies in a vehicle seat configuration having a backrest, a seat cushion and a restraint configuration, wherein a seat belt configuration is mounted on the backrest and / or the seat cushion, and wherein an airbag module is mounted on the backrest and / or the seat cushion and particularly has an opening for a guide element, wherein the guide element (preferably the opening) is arranged adjacent to the webbing exit plate of a webbing retractor.
[0010] In other words, the present invention proposes that a guide element, for example, constructed as a loop, eyelet, or strip, is fastened (e.g., sewn) to the airbag module, thereby coupling it, for example, with the loop, to the webbing, so that the guide element and the airbag area fastened to the guide element move along the webbing when the airbag deploys. That is, with the webbing fastened, a pre-defined track is provided for the movement of the guide element, extending along the occupant, thereby positioning the deployed airbag relative to the occupant at a predetermined position.
[0011] In the initial state, the guiding element, specifically a section of webbing corresponding to the fastened webbing, allows the deployed airbag to extend from the occupant's shoulder to their chest.
[0012] The airbag module preferably has a housing in which the airbag is initially positioned (folded and / or rolled up). The airbag module typically also includes a gas generator, which may be located inside or outside the housing.
[0013] The seatbelt configuration preferably also includes a housing containing a belt shaft for winding the webbing, which is part of the webbing retractor, as well as other components of the webbing retractor, such as a webbing tensioner and / or force limiting device. This or these components through which the webbing passes as it extends from the webbing retractor are also referred to as the webbing exit plate.
[0014] The seatbelt configuration and the airbag module can be arranged such that the opening for the guide element used to fasten to the airbag is positioned adjacent to the webbing exit plate of the webbing retractor. Therefore, the seatbelt configuration and the airbag module can be provided as independent structural units, wherein the guide element can only be coupled to the webbing after the seatbelt configuration and the airbag module are installed in the vehicle seat. In this case, the housing of the seatbelt configuration and the housing of the airbag module can be coordinated to maintain a preset installation position in which the webbing exit plate of the seatbelt configuration is aligned with the opening of the airbag module for the guide element. Alternatively, the seatbelt configuration and the airbag module can also form a shared unit mounted on the vehicle seat. In this case, the seatbelt configuration and the airbag module can have a shared housing.
[0015] Depending on the specific application, different arrangement schemes are possible. For example, the seat belt configuration, with its webbing retractor arranged in the upper area of the vehicle seat back, specifically in a manner oriented horizontally along the axis of the webbing retractor. In this arrangement, the seat belt configuration housing extends horizontally, for example, at the upper end of the backrest. Alternatively, the seat belt configuration can be arranged in the side area of the backrest.
[0016] Depending on the specific construction of the backrest, the airbag module housing can also extend horizontally, and particularly parallel to, the housing of the seatbelt configuration on the top side of the backrest. The seatbelt configuration can be positioned above or below the airbag module. In this arrangement, the seatbelt configuration and the airbag module can be provided as a shared structural unit.
[0017] Alternatively, the airbag module may extend vertically along the side of the seatback, for example. That is, in this case, the housing of the airbag module may be arranged at a right angle to the housing of the seatbelt configuration. In this arrangement, the seatbelt configuration and the airbag module can be provided as separate structural units.
[0018] In the latter case in particular, the airbag module housing may have a main section and an auxiliary section extending along the backrest, with openings for guiding elements arranged in the auxiliary section. Specifically, the auxiliary section is constructed such that, after the airbag module and seatbelt configuration are installed, the opening is arranged adjacent to the webbing exit plate. That is, after installation, the auxiliary section extends at least partially along the top side of the seatbelt configuration housing on the backrest. Therefore, at least after installation, the opening in the seatbelt configuration is aligned with a predetermined position of the webbing exit plate. Correspondingly, a section of the folded / rolled-up airbag also extends into the auxiliary section of the airbag housing.
[0019] Especially when an auxiliary section is provided on the airbag housing, the airbag is arranged in the housing such that the section of the airbag that connects to the guiding element is located in the auxiliary section, wherein the guiding element can extend from the housing through an opening. This allows the webbing to be coupled to the guiding element after the airbag module is provided.
[0020] In this configuration, also known as the initial position, the guide element is fixed in position, allowing the webbing to move relative to the fixed guide element during the fastening or unfastening of the seatbelt. That is, the guide element is constructed so as not to obstruct the fastening or unfastening process. Specifically, the guide element can, for example, partially encircle the webbing.
[0021] The guiding element can be formed, for example, from a strip of material, with its two ends fixed to the airbag, wherein webbing is arranged between these two ends and between the strip and the airbag. That is, the strip and the corresponding section of the airbag form a loop, so that the airbag must be forcibly moved along the webbing during deployment.
[0022] Webbing can also be constructed in multiple layers, particularly double layers, with guide elements arranged between adjacent layers. This prevents the guide elements from getting caught between the webbing and the occupant, as the occupant and guide elements do not come into direct contact. Specifically, guidance is provided by the multi-layered structure of the webbing, thereby ensuring that the coefficients of friction between the guide elements and the webbing are coordinated.
[0023] To provide additional guidance, and particularly additional retention, for the deployed airbag, the vehicle seat configuration may have a gripping mechanism for the airbag module, wherein the gripping mechanism includes at least one gripping configuration that can be fastened to the airbag and at least indirectly to the seat cushion and / or backrest. The gripping configuration may have one or more gripping straps, preferably connected together, wherein the straps are formed, for example, of a textile material capable only of transmitting tensile force. By properly arranging the gripping configuration, this material absorbs the force exerted by the occupant on the deployed airbag, particularly in an accident situation. This gripping configuration may include a tensioning device, which the deployed airbag can be aligned with. That is, by means of this tensioning device, the end of the gripping strap connected to the airbag is displaced, particularly toward the tensioning device, thereby pulling the deployed airbag toward the occupant.
[0024] The vehicle seat configuration may include two airbag modules, positioned on opposite sides of the backrest. Only one of these airbag modules is coupled to a webbing strap, and each airbag module is equipped with a strap-holding mechanism.
[0025] The original invention, independent of the aforementioned solutions, lies in the fact that, in the case of two airbags constructed, particularly on opposite sides of the vehicle backrest, these two airbags have corresponding elements of hook and loop fasteners. Specifically, the airbags are constructed and arranged such that, where appropriate, they can be guided by corresponding guiding elements and / or hook and loop configurations, so that the airbags come into contact with each other at the end of the deployment process.
[0026] Airbags have corresponding hook-and-loop fasteners that connect the two airbags at the end of deployment. By connecting the deployed airbags, the force exerted by the occupant on the airbag can be redirected to the vehicle seat, as the airbag cannot perform any evasive maneuvers.
[0027] In this regard, at least one airbag specifically has at least one main chamber, and at the end of the main chamber facing away from the backrest or seat cushion in the deployed state, there is an auxiliary element on which one element of the hook and loop fastener is arranged. The auxiliary element can be constructed, for example, as a secondary chamber or a lip movable relative to the main chamber, which allows one element of the hook and loop fastener to align with the other element of the hook and loop fastener even under load, without requiring the main chamber to move. This ensures that the connected elements of the hook and loop fastener are ideally aligned even under load, thereby maintaining the effectiveness of the hook and loop connection. Furthermore, the offsetting nature of the auxiliary element ensures that the two elements of the hook and loop fastener are connected to each other at the end of the airbag deployment process.
[0028] The invention and its technical environment are explained below by way of example with reference to the accompanying drawings. The drawings schematically illustrate...
[0029] Figure 1 A first embodiment of a vehicle seat configuration with constrained configuration.
[0030] Figure 2 : Figure 1 Detailed drawings,
[0031] Figure 3 : Figure 1 A perspective view of the vehicle's seating configuration (without occupants) is shown.
[0032] Figure 4 A second embodiment of a vehicle seat configuration with constrained configuration.
[0033] Figure 5 The vehicle seating configuration includes the occupants, and
[0034] Figure 6 : Figure 5 Another perspective view of the configuration shown.
[0035] The attached diagram shows the backrest 3 of the vehicle seat. Figure 1 , Figure 5 and Figure 6 The image also shows an occupant sitting on a seat cushion (also called a seat) in the vehicle. The backrest 3 is equipped with both a seatbelt configuration 1 and an airbag module 2.
[0036] Seatbelt configuration 1 includes a webbing 1.1 that can be wound into a webbing retractor 1.2 (not shown). The webbing retractor 1.2 has a webbing exit plate 1.2a through which the webbing 1.1 extends from the webbing retractor 1.2 (see in particular). Figure 2 (Detailed drawing).
[0037] The airbag module 2 includes a housing 6 having a main section 6a disposed on the side of the backrest 3 and an auxiliary section 6b extending from the top side of the backrest 3. An opening 6.1 is disposed in the auxiliary section 6b (see...). Figure 2 ).
[0038] exist Figure 1 and Figure 2 In the shown configuration, the airbag 2.1, which is not visible at this location, is arranged within the housing 6. A guide element 2.2 is fitted onto the airbag 2.1, specifically... Figure 2 and Figure 3 As can be seen in. Figure 2 In the initial state shown, the guide element 2.2 extends from the opening 6.1 of the auxiliary section 6b of the housing 6, through which the webbing 1.1 passes through the loop thus formed between the guide element 2.2 and the airbag 2.1.
[0039] Based on the guiding element 2.2, the airbag 2.1 moves along the webbing 1.1 during deployment. Figure 3 The unfolded state is shown.
[0040] That is, because it is encircled by webbing 1.1, the airbag 2.1 must follow the pre-set path of webbing 1.1 during deployment. Therefore, the airbag 2.1 is positioned in front of the occupant's chest area when deployed. Figure 3 It can also be seen that the end of the strip forming the guide element 2.2 is connected to the airbag 2.1, and the webbing 1.1 is arranged between the ends and between the guide element 2.2 and the airbag 2.1.
[0041] In the embodiment shown in the accompanying drawings, the housing of the webbing retractor 1.2 is located on the top side of the backrest 3 and thus extends generally vertically, while the housing 6 of the airbag 2 is arranged on the side of the backrest 3 and extends generally vertically.
[0042] Figures 4 to 6 The embodiments shown are the same as Figures 1 to 3 The difference in the illustrated embodiment is that the airbag has a main chamber 2.1a and an auxiliary element 2.1b that can pivot relative to the main chamber 2.1a. Furthermore, from... Figure 4 and Figure 5 As can be seen, a second airbag module 2 is arranged on the opposite side of the first airbag module. Each airbag 2.1 has a corresponding element of the hook and loop fastener 4, so that the airbags that have deployed at the end of the deployment process are connected by the hook and loop fastener 4, thereby minimizing the displacement of the airbag caused by the acceleration of the occupant.
[0043] from Figure 6As can be seen, a grab strap mechanism 5 is provided, which has a grab strap configuration 5.1. The grab strap configuration 5.1 is fastened to the airbag 2.1 on one side and to the backrest 3 of the vehicle seat on the other side. The grab strap mechanism 5 also has a tensioning mechanism, which can be used to pull the deployed airbag 2.1 toward the backrest 3, thereby keeping the occupant in their position.
[0044] List of icon symbols
[0045] 1. Seatbelt Configuration
[0046] 1.1 Webbing
[0047] 1.2 Webbing Retractor
[0048] 1.2a Webbing exit plate
[0049] 2. Airbag Module
[0050] 2.1 Airbags
[0051] 2.1a Main chamber
[0052] 2.1b Auxiliary Components
[0053] 2.2 Guiding Element
[0054] 3 Backrest
[0055] 4. Hook and loop fasteners
[0056] 5. Grabbing Mechanism
[0057] 5.1 Belt-grabbing configuration
[0058] 6. Shell
[0059] 6a Main Segment
[0060] 6b Auxiliary Section
[0061] 6.1 Opening
Claims
1. A constraint configuration for a motor vehicle, the constraint configuration having - A seatbelt configuration (1), wherein the seatbelt configuration (1) includes at least a webbing (1.1) and a webbing retractor (1.2), and - Two airbag modules (2) are arranged on opposite sides of the backrest (3), each of the airbag modules (2) including at least one airbag (2.1). Its features are, The airbag (2.1) has corresponding elements of hook and loop fasteners (4) on opposite sides; One of the airbags (2.1) is provided with a guide element (2.2) coupled to the webbing (1.1) so that it is guided along the webbing (1.1) by means of the guide element (2.2) during airbag deployment, so that at the end of the deployment process, it comes into contact with the other airbag (2.1) on the opposite side of the backrest (3) by the hook and loop fastener (4); The webbing (1.1) is constructed in a double layer, and the guiding element (2.2) is arranged between the layers.
2. The constraint configuration according to claim 1, wherein the guide element (2.2) is fixed in an initial position such that the webbing (1.1) moves relative to the fixed guide element (2.2) during the fastening or unfastening of the seat belt.
3. The constraint configuration according to claim 2, wherein the guiding element (2.2) is arranged in the initial position on the webbing exit plate (1.2a) of the webbing take-up device (1.2).
4. The constraint configuration according to claim 3, wherein the airbag module (2) has a housing (6) for the airbag (2.1), wherein an opening (6.1) is formed in the housing (6), and the guide element (2.2) extends from the housing (6) through the opening in the initial position.
5. The constraint configuration according to claim 4, wherein the housing (6) has a main section (6a) and an auxiliary section (6b) extending along the backrest (3), wherein the opening (6.1) is arranged in the auxiliary section (6b).
6. The constraint configuration according to claim 4, wherein the opening (6.1) for the guide element (2.2) is arranged adjacent to the webbing exit plate (1.2a) of the webbing retractor (1.2) in the housing (6) of the constraint configuration.
7. The constraint configuration according to claim 1, wherein the seat belt configuration (1) is arrangable in the upper region of the backrest, wherein the axis of the webbing retractor (1.2) is oriented horizontally.
8. The restraint configuration according to claim 4, wherein the housing (6) of the airbag (2.1) extends horizontally on the top side, in particular parallel to the axis of the webbing retractor (1.2), or extends vertically on the side at right angles to the axis of the webbing retractor (1.2).
9. The restraint configuration according to claim 1, wherein the at least one airbag (2.1) is arranged above and / or below the webbing (1.1).
10. The restraint configuration according to claim 1, wherein the guiding element (2.2) is formed of a strip with its two ends fixed to the airbag (2.1), wherein at least one layer of the webbing (1.1) is disposed between the two ends and between the strip and the airbag (2.1).
11. A vehicle seat configuration for a motor vehicle, the vehicle seat configuration having -Backrest (3) -seat cushion and - Constraint configuration according to any one of claims 1-10, The seat belt is mounted on the backrest (3) and / or the seat cushion, and the airbag module (2) is mounted on the backrest (3) and / or the seat cushion, and the guide element (2.2) of the airbag module (2) is arranged adjacent to the webbing exit plate (1.2a) of the webbing retractor (1.2).
12. The vehicle seat configuration according to claim 11, wherein at least one airbag (2.1) has at least one main chamber (2.1a) and has an auxiliary element (2.1b) at the end of the main chamber (2.1a) facing away from the backrest (3) or the seat cushion in the deployed state, wherein an element of the hook and loop fastener (4) is arranged on the auxiliary element (2.1b).
13. The vehicle seat configuration according to any one of claims 11 to 12, wherein the vehicle seat configuration has a gripping mechanism (5) for the airbag module (2), wherein the gripping mechanism (5) includes at least one gripping configuration (5.1), wherein the gripping configuration (5.1) is fastened to the airbag (2.1) and also at least indirectly fastened to the seat cushion and / or the backrest (3).
14. The vehicle seating configuration according to any one of claims 11 to 12, wherein, Each airbag module (2) corresponds to a gripping mechanism (5).