WO2020017280A1

WO2020017280A1 - Passenger restraint device

Info

Publication number: WO2020017280A1
Application number: PCT/JP2019/025941
Authority: WO
Inventors: 徹也松下; 齋藤　博之
Original assignee: オートリブディベロップメントエービー; 徹也松下; 齋藤　博之
Priority date: 2018-07-19
Filing date: 2019-06-28
Publication date: 2020-01-23
Also published as: JP7034288B2; JPWO2020017280A1

Abstract

[Problem] To provide a passenger restraint device provided with a tension cloth that deploys toward a side portion of a seat when an airbag inflates and deploys, wherein a further improvement in passenger restraint performance can be achieved. [Solution] A passenger restraint device according to the present invention is characterized by comprising: a pair of airbags that are accommodated within a seatback of a seat and inflate and deploy toward respective sides of a passenger sitting in the seat; and a pair of tension cloths accommodated in a region extending from the inside of the seatback of the seat to the inside of a seat cushion so that the tension cloths deploy through surfaces on the opposite sides of the respective airbags from the passenger when the pair of accommodated airbags inflate and deploy. As viewed from above, when the airbags are inflated and deployed, the gap between the surfaces of the pair of airbags on the passenger side is narrower toward the front. The pair of tension cloths deploy toward the side portions of the seat due to the inflation and deployment of the pair of airbags, extend across from the seatback to the seat cushion, and support the surfaces on the opposite sides of the pair of respective airbags from the passenger.

Description

Occupant restraint

The present invention relates to an occupant restraint device for restraining an occupant seated on a vehicle seat.

車両 Airbag devices are almost standard equipment in recent vehicles. An airbag device is a safety device that operates in an emergency such as a vehicle collision, and inflates and deploys with gas pressure to receive and protect an occupant. There are various types of airbag devices depending on the installation location and application. For example, in the occupant restraint device of Patent Literature 1, side airbags that inflate and deploy to the side of the occupant are provided on both sides of the seat.

In particular, in the occupant restraint device of Patent Document 1, a tension cloth is provided that is tensioned when the airbag is inflated and deployed and spreads between the airbag and both side surfaces of the seat cushion. Thereby, the movement of the airbag can be regulated by the tension cloth. Therefore, it is possible to enhance the occupant restraint performance of the airbag.

International Publication No. WO 2016/039160

According to the occupant restraint device of Patent Document 1, the movement of the airbag in the direction away from the occupant, particularly in the left-right direction, can be suitably restricted by the tension cloth, and the occupant restraint performance of the airbag is dramatically improved. However, occupant restraint devices are constantly required to improve occupant restraint performance. For this reason, the inventors examined further improvement of the technique of Patent Document 1.

The present invention has been made in view of the above problems, and provides an occupant restraint device capable of further improving occupant restraint performance in a configuration including a tension cloth that expands to a side portion of a seat when an airbag is inflated and deployed. With the goal.

In order to solve the above problem, a typical configuration of an occupant restraint device according to the present invention is an occupant restraint device for restraining an occupant seated on a vehicle seat, and the occupant restraint device is provided in a seat back of a seat. And a pair of airbags that are inflated and deployed on both sides of the occupant seated on the seat, and a surface of the airbag opposite to the occupant when the pair of airbags is inflated and deployed. A pair of tension cloths housed from the inside of the seat back of the seat to the inside of the seat cushion so as to deploy through the airbag, and a space between the surfaces of the pair of airbags on the occupant side when viewed from above when inflated and deployed. Is narrowed toward the front, and a pair of tension cloths are deployed on the side of the seat by inflating and deploying a pair of airbags, from the seat back to the seat cushion. Ri passed by the occupant of each pair of air bags, characterized in that for supporting the surface on the opposite side.

According to the above configuration, the pair of inflated and deployed airbags is urged against the occupant by the pair of tension cloths. Thereby, the occupant restraint performance of the airbag can be enhanced. In particular, in the above configuration, in a top view at the time of inflation and deployment, the surfaces of the pair of airbags on the occupant side become narrower toward the front. As a result, in the pair of airbags, a higher restraining force is obtained toward the front. Hereinafter, for convenience of explanation, the front side of the center of the length of the airbag in the front-rear direction is referred to as “front of the airbag”, and the rear side of the center of the length of the airbag in the front-rear direction is referred to as the “rear part of the airbag”. ".

場合 If the impact at the time of the collision is large, the load applied to the occupant and the amount of forward movement of the occupant increase. For this reason, the amount of entry of the occupant into the airbag increases, and the load applied to the airbag also increases. At the front part of the airbag, the space between the occupant-side surfaces is narrow, so that the binding force is high. Therefore, the occupant moved by a large impact can be strongly restrained.

場合 If the impact at the time of the collision is small, the load on the occupant and the amount of forward movement of the occupant are small. For this reason, the amount of entry of the occupant into the airbag is small, and the load applied to the airbag is also small. At the rear of the airbag, the spacing between the occupant-side surfaces is wider than at the front, so that the restraining force is lower than at the front. Therefore, the occupant can be loosely restrained. Therefore, the occupant is not overloaded and safety can be improved.

The pair of tension cloths may be developed on the side of the seat by cleaving the skin of the seat. Alternatively, the occupant restraint device includes a case accommodating a pair of airbags or a pair of tension cloths arranged at least on the side of the seat, and the pair of tension cloths may be deployed from the case to the side of the seat. With any configuration, the above-described effects can be obtained favorably.

において In a top view at the time of inflation and deployment, the surfaces of the pair of airbags on the occupant side may be inclined so as to approach the occupant toward the front. Since the occupant-side surfaces of the pair of airbags approach the occupant as they move forward, the occupant-side surfaces of the pair of airbags, when viewed from above when inflated and deployed, reliably move forward. Can be narrowed.

において As viewed from above when inflating and deploying, each of the pair of airbags preferably has a tapered shape that tapers rearward. As a result, the width of the pair of airbags in the left-right direction increases toward the front during inflation and deployment. Therefore, the distance between the surfaces of the pair of airbags on the occupant side when viewed from the top during inflation and deployment can be reliably narrowed toward the front.

(4) The occupant restraining device may include a pair of subbags connected to the front portions of the pair of airbags, each communicating with the pair of airbags, and inflating and deploying in front of the occupant. Thus, the body of the occupant can be restrained by the pair of airbags, and the head of the occupant can be restrained by the pair of subbags. Therefore, the occupant restraint performance can be further enhanced.

In particular, the inner pressure and thus the hardness of the subbag are adjusted by adjusting the curvature and the diameter of the inner vent, which is a communication hole between the airbag and the subbag. Therefore, it is possible to increase the internal pressure of the airbag which needs to strongly restrain the torso of the occupant having a large mass, and to lower the internal pressure of the subbag which restrains the occupant's head than the airbag. Thus, it is possible to reduce the obstacle value of the occupant's head while appropriately restraining the occupant's torso.

The pair of subbags have a pair of outer vents that are closed and closed by the pair of airbags respectively when inflated and deployed, and the pair of outer vents move forward when the pair of subbags moves forward due to entry of the occupant's head. Should be in the open state. As a result, the outer vent of the airbag is closed by the sub bag before the occupant moves forward immediately after the inflation and deployment. Therefore, immediately after inflation and deployment, a high internal pressure is maintained in the airbag. This makes it possible to strongly restrain the occupant's trunk in the airbag.

Subsequently, when the occupant moves forward, the subbag moves forward due to the entry of the occupant's head. Then, the outer vent is opened, and the gas in the airbag flows out of the airbag. Thereby, the internal pressure of the airbag decreases. Therefore, the occupant is strongly restrained immediately after the inflation and deployment, and is loosely restrained thereafter. Therefore, the obstacle value to the occupant is reduced, and safety can be improved.

The pair of subbags may be inflated and deployed later than the pair of airbags. Accordingly, the occupant's head can be restrained by the subbag after the occupant's trunk is suitably restrained in a state where the internal pressure of the airbag immediately after inflation and deployment is maintained high by the airbag.

The pair of subbags may be located on the front side of the pair of airbags when inflated and deployed. Thus, the head of the occupant can be more reliably restrained by the subbag.

According to the present invention, it is possible to provide an occupant restraint device capable of further improving occupant restraint performance in a configuration including a tension cloth that is deployed on a side portion of a seat when an airbag is inflated and deployed.

It is a figure which illustrates the occupant restraint device concerning a 1st embodiment. FIG. 2 is a diagram illustrating a shape of the airbag of FIG. 1 when inflated and deployed. It is a figure explaining an occupant restraint device concerning a 2nd embodiment. FIG. 4 is a diagram illustrating the shape of the airbag and the subbag in FIG. 3 when inflated and deployed. It is a figure explaining an occupant restraint device concerning a 3rd embodiment. FIG. 6 is a diagram exemplifying shapes of the airbag and the subbag in FIG. 5 when inflated and deployed. It is a figure explaining other examples of an occupant restraint device of this embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, other specific numerical values, and the like shown in the embodiments are merely examples for facilitating the understanding of the present invention, and do not limit the present invention unless otherwise specified. In the specification and the drawings, elements having substantially the same function and configuration will be denoted by the same reference numerals, and redundant description will be omitted. Elements not directly related to the present invention will be omitted. I do.

In the present embodiment, the direction in which the occupant is facing when the occupant sits on the seat in a normal posture is referred to as the front, and the opposite direction is referred to as the rear. When the occupant sits on the seat in a normal posture, the right side of the occupant is referred to as a right direction, and the left side of the occupant is referred to as a left direction. Further, when the occupant is seated in a normal posture, the direction of the occupant's head is referred to as upward, and the direction of the occupant's waist is referred to as downward. In the drawings used in the following description, the front, rear, left, right, and up and down directions based on the occupant described above are indicated as Fr, Rr, L, R, Up, and Down, as necessary.

(1st Embodiment)
FIG. 1 is a diagram illustrating an occupant restraint device 100 according to the first embodiment. In FIG. 1, the members housed inside the seat 110 are indicated by phantom lines for easy understanding. FIG. 1 illustrates the seat when the airbag is not inflated and deployed.

The occupant restraint device 100 of the present embodiment is a device for restraining an occupant sitting on the seat 110. As illustrated in FIG. 1, an occupant restraint device 100 of the present embodiment includes a seat 110 of a vehicle (not shown in the entirety), a pair of

airbags

120a and 120b, and a pair of tension cloths, a left-side tension cloth 130a and a right-side tension cloth. The tension cloth 130b is provided. The seat 110 includes a seat back 112 that supports the upper body of the occupant. A seat cushion 114 on which an occupant sits is provided below the seat back 112. Above the seat back, a headrest 116 for supporting the occupant's head is provided.

The

airbags

120a and 120b (side airbags) are housed inside the left and right sides of the seat back 112 of the seat 110, respectively, as illustrated in FIG. The pair of

airbags

120a and 120b on the left and right sides are inflated and deployed on both sides of the occupant seated on the seat 110 at the time of a vehicle collision or the like.

In the present embodiment, the left side tension cloth 130a and the right side tension cloth 130b are provided for each of the pair of

airbags

120a and 120b. The left side tension cloth 130a and the right side tension cloth 130b are arranged so that when the pair of stored

airbags

120a and 120b are inflated and deployed, they are deployed through the surfaces opposite to the occupants. It is stored from inside to inside the seat cushion 114.

FIG. 2 is a view exemplifying the shape of the

airbags

120a and 120b in FIG. 1 when inflated and deployed. FIGS. 2A and 2B illustrate a state in which the occupant P is seated on the seat 110 illustrated in FIG. 1 and the state in which the

airbags

120a and 120b are inflated and deployed is observed from above.

As illustrated in FIGS. 2A and 2B, when the pair of

airbags

120a and 120b are inflated and deployed, the pair of tension cloths (the left-side tension cloth 130a and the right-side tension cloth 130b) rupture the skin of the seat 110. By doing so, it is deployed on the side of the seat 110 and is stretched from the seat back 112 to the seat cushion 114. As a result, the surfaces 124 of the pair of

airbags

120a and 120b opposite to the occupant P are supported by the pair of tension cloths. Thereby, the

airbags

120a and 120b are urged against the occupant P by the tension cloth. Therefore, the occupant restraint performance of the

airbags

120a and 120b can be improved.

As illustrated in FIGS. 2A and 2B, in particular, in the occupant restraint device 100 of the present embodiment, the space between the occupant-side surfaces 122 of the pair of

airbags

120 a and 120 b when viewed from above when inflated and deployed. D becomes narrower toward the front. Thereby, the restraining force of the

airbags

120a and 120b becomes stronger toward the front. Hereinafter, for convenience of description, the front side of the center C of the length in the front-rear direction of the

airbags

120a and 120b is referred to as "the front part 126 of the airbag", and the rear side of the center of the length in the front-rear direction of the airbag is referred to. This will be referred to as “the rear portion 128 of the airbag”.

(4) If the impact at the time of the collision is large, a large load is applied to the occupant P, and the amount of movement of the occupant P forward is increased. Therefore, as illustrated in FIG. 2A, the amount of the occupant P entering the

airbags

120a and 120b increases, and the load applied to the

airbags

120a and 120b also increases. At this time, the front portion 126 of the airbag has a high restraining force because the space D between the occupant-side surfaces 122 is narrow. Therefore, the occupant P moved by a large impact can be strongly restrained.

場合 When the impact at the time of the collision is small, the load applied to the occupant P is small, and the amount of movement of the occupant P forward is small. Therefore, as illustrated in FIG. 2B, the amount of the occupant P entering the

airbags

120a and 120b is small, and the load applied to the

airbags

120a and 120b is also small. At this time, the rear part 128 of the airbag has a lower binding force than the front part 126 because the distance D between the occupant-side surfaces 122 is wider than the front part 126. Therefore, the occupant P can be loosely restrained, so that an excessive load is prevented from being applied to the occupant, and safety can be improved.

In the occupant restraint device 100 of the present embodiment, when viewed from above when inflated and deployed, the occupant side surfaces 122 of the pair of

airbags

120a and 120b are inclined so as to approach the occupant as they move forward. Thereby, the occupant-side surfaces 122 of the pair of

airbags

120a and 120b in the top view at the time of inflation and deployment are necessarily narrower toward the front. Therefore, the above-described effects can be reliably obtained.

In the occupant restraint system 100 of the present embodiment, when viewed from the top during inflation and deployment, each of the pair of

airbags

120a and 120b has a tapered shape that tapers toward the rear. As a result, the width of the pair of

airbags

120a and 120b in the left-right direction increases toward the front during inflation and deployment. Therefore, the distance between the occupant-side surfaces 122 of the pair of

airbags

120a and 120b when viewed from above during inflation and deployment can be reliably narrowed toward the front.

(2nd Embodiment)
FIG. 3 is a diagram illustrating an occupant restraint device 200 according to the second embodiment. FIG. 4 is a view exemplifying shapes of the

airbags

120a and 120b and the subbags 220a and 220b in FIG. 4A and 4B illustrate a state in which the occupant P is seated on the seat 110 illustrated in FIG. 3 and the

airbags

120a and 120b and the subbags 220a and 220b are inflated and deployed from above. ing. In the following embodiments, the same components as those of the occupant restraint device of the previous embodiment will be denoted by the same reference numerals, and description thereof will be omitted.

As illustrated in FIG. 3, the occupant restraint device 200 of the second embodiment further includes a pair of subbags 220a and 220b in addition to the pair of

airbags

120a and 120b. The pair of subbags 220a and 220b are connected to front portions 126 (see FIG. 4A) of the pair of

airbags

120a and 120b, and communicate with the pair of

airbags

120a and 120b, respectively. As illustrated in FIG. 4A, when the pair of

airbags

120 a and 120 b is deployed on the side of the seat 110, the pair of

subbags

220 a and 220 b together with the pair of

airbags

120 a and 120 b are connected to the side of the seat 110. Expand to

As illustrated in FIG. 4A, in the occupant restraint device 200 of the present embodiment, first, the pair of

airbags

120a and 120b is inflated and deployed, and the trunk P1 of the occupant P is restrained by the pair of

airbags

120a and 120b. Is done. Thereafter, as illustrated in FIG. 4B, the pair of subbags 220a and 220b, which have been supplied with the gas via the pair of

airbags

120a and 120b, expand and deploy in front of the occupant P, and the head of the occupant P The part P2 is restrained by the subbags 220a and 220b. Thereby, the occupant restraint device 200 can achieve higher occupant restraint performance. Further, since the pair of subbags 220a and 220b are located on the front side of the pair of

airbags

120a and 120b during inflation and deployment, the head P2 of the occupant P can be more reliably restrained by the subbags 220a and 220b. Becomes

サブ In the above-described subbags 220a and 220b, the internal pressure and thus the hardness can be adjusted by adjusting the curvature and the diameter of the inner vent 222 which is a communication hole between the

airbags

120a and 120b and the subbags 220a and 220b. Therefore, by providing the subbags 220a and 220b in addition to the

airbags

120a and 120b, the

airbags

120a and 120b, which need to strongly restrain the trunk P1 of the occupant P, increase the internal pressure and increase the head P2 of the occupant P. The inner pressures of the sub-bags 220a and 220b that restrain the air pressure can be set separately such that the internal pressures are lower than those of the

airbags

120a and 120b. Thereby, the effect of lowering the obstacle value of the head P2 of the occupant P can be obtained while appropriately restraining the trunk P1 of the occupant P.

In the present embodiment, in particular, the pair of subbags 220a and 220b are so-called delay chambers that inflate and deploy later than the pair of

airbags

120a and 120b. Thus, after the trunk P1 of the occupant P is suitably restrained while the internal pressure of the

airbags

120a and 120b is maintained high immediately after inflation and deployment, the head P2 of the occupant P is restrained by the subbags 220a and 220b. It becomes possible.

In the present embodiment, the configuration in which the pair of sub-bags 220a and 220b are used as the delay chamber is illustrated, but the present invention is not limited to this. Therefore, the pair of subbags 220a and 220b can be inflated and deployed almost simultaneously with the pair of

airbags

120a and 120b.

(Third embodiment)
FIG. 5 is a diagram illustrating an occupant restraint device according to a third embodiment. FIG. 6 is a diagram exemplifying the shapes of the

airbags

120a and 120b and the subbags 220a and 220b in FIG. 5 when inflated and deployed. FIG. 5 illustrates a state where the occupant P sitting on the seat is observed from the side when the airbag 120b is inflated and deployed. FIGS. 6A and 6B illustrate a state in which the occupant P is seated on the seat 110 illustrated in FIG. 5 and the state in which the

airbags

120a and 120b are inflated and deployed is observed from above. In addition, since the pair of

airbags

120a and 120b are symmetrical, FIG. 5 illustrates the right airbag 120b.

As shown in FIGS. 6A and 6B, the occupant restraint device 300 of the third embodiment also includes a pair of subbags in addition to the pair of

airbags

120a and 120b. In the occupant restraint device 300 of the third embodiment, as illustrated in FIG. 5, the subbag 220b has an occupant-side surface 122 in the front portion of the airbag 120b (see FIGS. 6A and 6B). Connected to. At this time, the subbag 220b is sewn to the airbag at a part, but not all, of the periphery. The subbag 220b communicates with the pair of subbags 220a and 220b through the inner vent 222 that is a communication hole, receives gas supply through the pair of

airbags

120a and 120b, and is delayed from the pair of

airbags

120a and 120b. To expand.

As shown in FIG. 5, an outer vent 302 communicating with the outside is formed in the subbag 220b. As a feature of the present embodiment, as illustrated in FIG. 6A, immediately before inflation and deployment, before the occupant P moves forward, the outer vent 302 is covered with a pair of

airbags

120a and 120b. It is in a closed state by being closed.

Thereafter, when the occupant P moves forward and the head P2 of the occupant P enters the pair of sub-bags 220a and 220b, as shown in FIG. 6B, the pair of sub-bags 220a and 220b It moves with P's head P2. As a result, the outer vent 302 is exposed and becomes open.

According to the above configuration, since the outer vent 302 is in the closed state, a high internal pressure is maintained in the

airbags

120a and 120b immediately after inflation and deployment. Thus, it becomes possible to strongly restrain the trunk P1 of the occupant P in the

airbags

120a and 120b. When the subbags 220a and 220b move forward due to the entry of the head P2 of the occupant P and the outer vent 302 is opened, the gas in the

airbags

120a and 120b flows through the outer vent 302 of the subbags 220a and 220b. It flows outside, and the internal pressure of the

airbags

120a and 120b decreases. Thereby, the occupant P is strongly restrained immediately after the inflation and deployment, and is loosely restrained thereafter. Therefore, the obstacle value to the occupant P is reduced, and safety can be improved.

FIG. 5 illustrates a configuration in which the right-side tension cloth 130b extends from the upper surface of the seat cushion 114 to the outside of the seat 110, but is not limited thereto. For example, the same effect can be obtained by a configuration in which the right-side tension cloth 130b is deployed outside the seat 110 from the vicinity of the side surface of the seat cushion 114 or the boundary between the side surface and the upper surface.

FIG. 7 is a diagram illustrating another example of the occupant restraint device of the present embodiment. The occupant restraint device 400 illustrated in FIG. 7 includes

cases

118a and 118b arranged on the side of the seat 110. The case 118a is a case that houses a pair of

airbags

120a and 120b, and the case 118b is a case that houses a pair of tension cloths (a left tension cloth 130a and a right tension cloth 130b).

In the occupant restraint device 400 illustrated in FIG. 7, when the

airbags

120a and 120b are inflated and deployed, the pair of tension cloths (the left-side tension cloth 130a and the right-side tension cloth 130b) are deployed from the case 118b to the side of the seat 110. With such a configuration, the same effect as that of the occupant restraint device 100 described above can be obtained.

As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings. However, the embodiments described above are preferred examples of the present invention, and other embodiments may be implemented or implemented by various methods. I can do it. The present invention is not limited by the shape, size, configuration and arrangement of the detailed components shown in the accompanying drawings unless otherwise specified in the specification of the present application. Further, expressions and terms used in the specification of the present application are for the purpose of explanation, and are not limited thereto unless otherwise specified.

Therefore, it is clear that those skilled in the art can conceive various changes or modifications within the scope of the claims, and these naturally belong to the technical scope of the present invention. It is understood.

The present invention can be used for an occupant restraint device that restrains an occupant sitting on a vehicle seat.

P1: trunk, P2: head, 100: occupant restraint device, 110: seat, 112: seat back, 114: seat cushion, 116: headrest, 120a: airbag, 120b: airbag, 122: occupant side surface , 124: Opposite surface, 126: Front, 128: Rear, 130a: Left tension cloth, 130b: Right tension cloth, 200: Occupant restraint, 220a: Subbag, 220b: Subbag, 300: Occupant restraint , 302: outer vent, C: center, D: interval, P: occupant

Claims

An occupant restraint device for restraining an occupant seated on a vehicle seat,
The occupant restraint,
A pair of airbags stored in the seat back of the seat and inflated and deployed on both sides of the occupant seated on the seat,
When the pair of stored airbags are inflated and deployed, the airbags are stored from the inside of the seat back of the seat to the inside of the seat cushion so as to deploy through the surfaces of the airbags opposite to the occupant. And a pair of tension cloths,
In top view at the time of inflation and deployment, the distance between the surfaces on the occupant side of the pair of airbags becomes narrower toward the front,
The pair of tension cloths are deployed on the side of the seat by inflation and deployment of the pair of airbags, and are stretched from the seatback to the seat cushion on the side opposite to the occupant of each of the pair of airbags. An occupant restraint device supporting a surface of a vehicle.
The occupant restraint device according to claim 1, wherein the pair of tension cloths are deployed on a side portion of the seat by cleaving a skin of the seat.
The occupant restraint device includes a case that accommodates the pair of airbags or the pair of tension cloths arranged at least on the side of the seat,
The occupant restraint device according to claim 1, wherein the pair of tension cloths extend from the case to a side portion of the seat.
The occupant-side surface of the pair of airbags is inclined so as to approach the occupant toward the front as viewed from above when inflated and deployed. An occupant restraint device as described.
The occupant restraint device according to any one of claims 1 to 4, wherein each of the pair of airbags has a tapered shape that tapers rearward as viewed from above when inflated and deployed. .
2. The occupant restraint device according to claim 1, further comprising a pair of subbags connected to front portions of the pair of airbags, each of the subbags being in communication with the pair of airbags, and inflating and deploying in front of the occupant. The occupant restraint device according to any one of claims 1 to 5.
The pair of subbags have a pair of outer vents that are closed and closed by the pair of airbags when inflated and deployed,
The occupant restraint device according to claim 6, wherein the pair of outer vents is opened when the pair of subbags move forward due to entry of the occupant's head.
The occupant restraint device according to claim 6, wherein the pair of subbags inflates and deploys later than the pair of airbags.
The occupant restraint device according to any one of claims 6 to 8, wherein the pair of subbags are located forward of the pair of airbags when inflated and deployed.