Remote safety airbag

Abstract

This utility model discloses a remote airbag, including a remote airbag bag and a gas generator installed inside the remote airbag bag. The remote airbag bag includes: an upper cavity bag and a lower cavity bag arranged vertically, with the lower side of the upper cavity bag and the upper side of the lower cavity bag sewn together, and the gas generator installed inside the lower cavity bag; an air guide band disposed between the upper cavity bag and the lower cavity bag, with a plurality of air guide holes spaced apart along the length direction on the air guide band; an upper cavity inner pull strap and a lower cavity inner pull strap disposed in the middle of the upper cavity bag and the lower cavity bag for controlling the deployment posture and thickness of the upper cavity bag and the lower cavity bag; and a plurality of upper cavity dead zones disposed in the upper cavity bag and spaced apart circumferentially along the upper cavity inner pull straps. This utility model effectively enhances the dynamic support capability of the driver and passenger head areas, and also increases the coverage area of ​​the driver and passenger head areas.

Description

Technical Field

[0001] This utility model relates to the field of automotive airbag technology, and in particular to a remote airbag. Background Technology

[0002] A distal airbag (FAB) is a safety device in a vehicle's passive restraint system. It deploys instantaneously during a collision, forming a physical barrier between the driver and front passenger seats. This effectively prevents the driver and front passenger from impacting each other's heads, chests, and other body parts due to inertia during a side collision (such as a head-on collision). Once deployed, the airbag provides support between the two seats, significantly reducing the risk of secondary injuries to the occupants. In a collision, the distal airbag is a crucial safety component protecting the head, chest, and abdomen of vehicle occupants; its performance directly impacts their lives. During a collision, the airbag cushions direct impacts with hard objects inside the vehicle, such as the center console, door panels, and seat edges, reducing the probability of abrasions, fractures, and other injuries.

[0003] However, the dynamic support capability and coverage area of ​​existing remote airbags are still not ideal. Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution described below arose from this context. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a remote airbag that enhances the dynamic support capability of the head area of ​​the driver and passenger and improves the coverage area of ​​the head area of ​​the driver and passenger, in order to address the shortcomings of the existing technology.

[0005] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0006] A remote airbag includes a remote airbag bag installed in a vehicle seat and a gas generator installed in the remote airbag bag; the remote airbag bag includes:

[0007] An upper cavity bag and a lower cavity bag are arranged vertically, with the lower side of the upper cavity bag and the upper side of the lower cavity bag sewn together, and the gas generator is installed in the lower cavity bag;

[0008] An air guide strip is disposed between the upper cavity bag and the lower cavity bag, and a plurality of air guide holes are spaced apart along the length direction on the air guide strip;

[0009] An inner drawstring in the upper cavity and an inner drawstring in the lower cavity, located in the middle of the upper and lower cavity bags respectively, are used to control the unfolding posture and thickness of the upper and lower cavity bags; and

[0010] Several upper cavity dead zones are disposed within the upper cavity bag body and are arranged at intervals along the circumferential direction of the upper cavity pull strap.

[0011] In a preferred embodiment of the present invention, a sewing connection line between the upper and lower air bags is provided at the connection between the upper and lower air bags, so that the upper air bag tilts toward the driver's side after being inflated and unfolded.

[0012] In a preferred embodiment of the present invention, each upper cavity dead zone is formed by sewing the inner and outer panels of the upper cavity bag body together with at least one upper cavity dead zone seam.

[0013] In a preferred embodiment of the present invention, a plurality of upper cavity air guide holes are spaced apart along the length direction inside the upper cavity inner pull strap.

[0014] In a preferred embodiment of this invention, the sewing direction of the inner drawstring in the lower cavity follows the tilt angle of the dummy's torso on the seat.

[0015] In a preferred embodiment of the present invention, a fixing strap is further included, one end of which is fixedly connected to the lower part of the lower cavity bag body, and the other end of which is connected to the gas generator.

[0016] In a preferred embodiment of this utility model, a heat insulation sheet is provided inside the lower cavity air bag at the installation position of the gas generator.

[0017] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model divides the remote airbag into an upper chamber and a lower chamber, and connects the upper and lower chambers through air ducts. In the event of a collision, the gas first fills the lower chamber, protecting the chest and abdomen of the driver and passenger. The inner strap of the lower chamber controls the thickness of the lower chamber, preventing it from being blocked by the center console and seat, and preventing the shape of the lower chamber from being affected by slow inflation. Then, the airflow enters the upper chamber through the air ducts. The upper chamber, through the inner strap and several upper chamber dead zones, presents a shape where the upper chamber protrudes at the head impact position, with airflow around the edges lower than in the middle. This provides support for the driver's side head and isolation for the passenger's side head, preventing head-to-head collisions. This effectively enhances the dynamic support capability of the driver and passenger head areas, and also increases the coverage area for the driver and passenger heads. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the inflatable deployment of this utility model. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0022] See Figure 1 and Figure 2 The figure shows a remote airbag, including a remote airbag bag 100 installed in the car seat and a gas generator (not shown in the figure) installed in the remote airbag bag 100.

[0023] The distal airbag 100 includes an upper cavity bag body 110a, a lower cavity bag body 110b, an air guide band 120, an upper cavity inner pull band 130a, a lower cavity inner pull band 130b, and three upper cavity dead zones 140.

[0024] The upper chamber bag 110a and the lower chamber bag 110b are arranged vertically, with the lower side of the upper chamber bag 110a sewn together with the upper side of the lower chamber bag 110b. The gas generator is installed inside the side of the lower chamber bag 110b. In this embodiment, a sewing connection line 111 is provided between the upper and lower chamber air bags at the connection point. The sewing connection line 111 allows the upper chamber bag 110a to tilt towards the driver's side after inflation, thus better protecting the driver.

[0025] A gas guide belt 120 is disposed between the upper cavity bag 110a and the lower cavity bag 110b. A plurality of gas guide holes 121 are spaced apart along the length of the gas guide belt 120, which are used to guide the gas in the lower cavity bag 110b into the upper cavity bag 110a.

[0026] Upper cavity inner strap 130a and lower cavity inner strap 130b are located in the middle of the upper cavity bag 110a and lower cavity bag 110b, respectively, and are used to control the unfolded posture and thickness of the upper cavity bag 110a and lower cavity bag 110b to increase the coverage area. Several upper cavity air guide holes (not shown in the figure) are spaced apart along the length of the upper cavity inner strap 130a to allow gas to fill the upper cavity bag 110a more quickly. The sewing direction of the lower cavity inner strap 130b follows the tilt angle of the dummy's torso on the seat.

[0027] Three upper cavity dead zones 140 are arranged within the upper cavity bag body 110a and spaced circumferentially along the upper cavity inner pull strap 130a. Each upper cavity dead zone 140 is formed by sewing the inner and outer panels of the upper cavity bag body 110a together with one or two upper cavity dead zone seams 141. Of course, the number of upper cavity dead zones 140 is not limited to that in this embodiment, and should be designed according to design needs.

[0028] The distal airbag 100 of this utility model also includes a fixing strap 150. One end of the fixing strap 150 is fixedly connected to the lower part of the lower cavity bag body 110b, and the other end is connected to the gas generator to ensure that the airbag is vertical when it is deployed and will not float.

[0029] The distal airbag 100 of this invention also includes a heat insulation sheet 160, which is disposed within the lower cavity bag body 110b and located at the installation position of the gas generator. When a vehicle collision occurs, heat may be generated during the airbag inflation process. The heat insulation sheet 160 can block the direct action of heat on the inner layer material of the airbag, preventing the airbag material from undergoing thermal aging due to high temperature and reducing the phenomenon of strength reduction caused by thermal aging.

[0030] After a collision, the gas generator detonates and inflates, initially filling the lower chamber airbag 110b to protect the driver and passenger's chest and abdomen. The inner strap 130b controls the thickness of the lower chamber airbag 110b, preventing it from being obstructed by the center console and seats, and ensuring its shape is not affected by slow inflation. Gas flows along the gas flow diagram 1 through the air vent 121 into the upper chamber airbag 110a. The inner strap 130a and the upper chamber dead zone 140 cause the upper chamber airbag 110a to have a shape where it protrudes at the head impact position, with ventilation around the edges lower than the center. This provides support for the driver's side head and isolation for the passenger's side head, preventing head-to-head collisions. Once fully inflated, the airbag... Figure 2 As shown.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A remote airbag, comprising a remote airbag bag installed in a vehicle seat and a gas generator installed in the remote airbag bag; characterized in that, The distal airbag includes: An upper cavity bag and a lower cavity bag are arranged vertically, with the lower side of the upper cavity bag and the upper side of the lower cavity bag sewn together, and the gas generator is installed in the lower cavity bag; An air guide strip is disposed between the upper cavity bag and the lower cavity bag, and a plurality of air guide holes are spaced apart along the length direction on the air guide strip; An inner drawstring in the upper cavity and an inner drawstring in the lower cavity, located in the middle of the upper and lower cavity bags respectively, are used to control the unfolding posture and thickness of the upper and lower cavity bags; and Several upper cavity dead zones are disposed within the upper cavity bag body and are arranged at intervals along the circumferential direction of the upper cavity pull strap.

2. The remote airbag as described in claim 1, characterized in that, A sewing connection line is provided between the upper and lower air bags at the connection point of the upper and lower air bags, so that the upper air bag tilts towards the driver's side after it is inflated and unfolded.

3. The remote airbag as described in claim 1, characterized in that, Each upper cavity dead zone is formed by sewing the inner and outer panels of the upper cavity bag body together with at least one upper cavity dead zone suture.

4. The remote airbag as described in claim 1, characterized in that, The upper cavity inner band is provided with several upper cavity air guide holes spaced apart along its length.

5. The remote airbag as described in claim 1, characterized in that, The stitching direction of the inner tether in the lower cavity follows the tilt angle of the dummy's torso on the seat.

6. The distal airbag as described in any one of claims 1 to 5, characterized in that, It also includes a fixing strap, one end of which is fixedly connected to the lower part of the lower cavity bag body, and the other end of which is connected to the gas generator.

7. The remote airbag as described in claim 6, characterized in that, A heat insulation sheet is installed inside the lower chamber air bag at the installation position of the gas generator.

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