Vehicle and airbag device

Abstract

To provide a vehicle and an airbag device capable of protecting occupants even when an impact load is applied from the front oblique direction.SOLUTION: A vehicle includes: a vehicle seat 11; a door that is positioned adjacent to the vehicle seat 11 in the vehicle width direction outer side; and an airbag device that has an airbag 230 that inflates and expands between an occupant seated on the vehicle seat 11 and the door when an impact load is applied from the front oblique direction. The airbag 230 includes an abdominal inflation part 230b that inflates and expands so as to surround a region extending from the outer portion in the vehicle width direction to a portion of the front portion in the abdominal part 500d of the occupant 500 when an impact load is applied from the left front oblique direction.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a vehicle and an airbag device. [Background technology]

[0002] In order to protect occupants in the event of a vehicle collision, vehicles are equipped with airbag devices. In the vehicle disclosed in Patent Document 1, a side airbag device is built into the seat back of the front seat, and is configured to inflate and deploy laterally to the portion of the occupant's head to upper arms between the seat and the door in the event of a vehicle collision.

[0003] Patent Document 2 discloses a large side airbag device that protects the chest and waist of an occupant during a vehicle collision. The side airbag device disclosed in Patent Document 2 includes a strap having one end fixed to the upper front end of the airbag and the other end fixed to the lower front end. The strap is routed inside the seat cushion and the seat back, and is wound around a connecting rod and a reclining rod. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-135016 A [Patent Document 2] JP 2008-201297 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned conventional technology may not be sufficient to protect the occupant when a collision load is applied from the diagonal front. Specifically, when a collision load is applied from the diagonal front left, the occupant moves diagonally forward to the left. In this case, the occupant seated on the left side of the vehicle may collide with a diagonal front portion of the door trim or a pillar diagonally forward to the left.

[0006] Conversely, when a collision load is applied from the diagonal front right, the occupant moves diagonally forward to the right. In this case, the occupant seated on the right side of the vehicle may collide with the diagonal front part of the door trim or the pillar diagonally forward to the right. It is necessary to provide more reliable protection for the occupant when a collision load is applied from the diagonal front like this.

[0007] The present invention has been made to solve the above-mentioned problems, and has an object to provide a vehicle and an airbag device that can protect occupants even when a collision load is input diagonally from the front. [Means for solving the problem]

[0008] A vehicle according to one aspect of the present invention includes a vehicle seat, a door disposed adjacent to the vehicle seat on the outer side in the vehicle width direction, and an airbag device having an airbag that inflates and deploys between an occupant seated in the vehicle seat and the door when a collision load is input from the oblique front. In the vehicle according to this aspect, the airbag has an abdominal expansion portion that inflates and deploys to be located in a region extending from an outer portion in the vehicle width direction to a part of a front portion of the abdomen of the occupant when a collision load is input from the oblique front.

[0009] In the vehicle according to the above aspect, since the airbag in the airbag device has an abdominal expansion portion, when a collision load is input from the diagonal front, the occupant moves diagonally forward with the abdominal expansion portion wrapped around the abdomen. Therefore, the abdominal expansion portion wrapped around the abdomen of the occupant can prevent the abdomen and chest of the occupant from receiving a strong impact force due to a collision with a structure (pillar, door trim, etc.) diagonally forward. Therefore, in the vehicle according to the above aspect, the occupant can be protected even when a collision load is input from the diagonal front.

[0010] In the vehicle according to the above aspect, the airbag may further include a shoulder expansion portion that expands and deploys between the door and the shoulder of the occupant on the outer side in the vehicle width direction when a collision load is input from the diagonal front. Also, in the vehicle according to the above aspect, the airbag device may further include an inflator that supplies gas to the abdominal expansion portion and the shoulder expansion portion when a collision load is input from the diagonal front.

[0011] In the vehicle according to the above aspect, the abdominal inflation portion and the shoulder inflation portion can be inflated and deployed by a single inflator, so that the size of the device and the manufacturing costs can be reduced compared to when separate inflators are provided for the abdominal inflation portion and the shoulder inflation portion. Also, because the abdominal inflation portion and the shoulder inflation portion are inflated and deployed by a single inflator, there is little risk of misalignment in the deployment start timing, and the occupant can be protected in a stable state.

[0012] In the vehicle according to the above aspect, a supply flow path for the gas to the abdominal expansion section may be formed to pass through the shoulder expansion section.

[0013] In the vehicle of the above-described aspect, the gas supply flow path to the abdominal expansion section is formed to pass through the shoulder expansion section, thereby making it possible to reduce the device size and manufacturing costs compared to when separate gas supply flow paths are provided for the abdominal expansion section and the shoulder expansion section.

[0014] In the vehicle of the above-mentioned aspect, the airbag may be provided in a portion of the gas supply flow path between the abdominal expansion portion and the shoulder expansion portion, and may further have a restricting portion that restricts the flow of gas from the shoulder expansion portion to the abdominal expansion portion when a collision load is input from the diagonal front.

[0015] In the vehicle according to the above aspect, since the narrowed portion is provided between the abdominal expansion portion and the shoulder expansion portion, the flow of gas between the abdominal expansion portion and the shoulder expansion portion is restricted, and the inflated shapes of the abdominal expansion portion and the shoulder expansion portion can be stabilized. Therefore, the vehicle according to the above aspect is advantageous in protecting the occupant when a collision load is input from the diagonal front.

[0016] In the vehicle according to the above aspect, the airbag may further include a tether that suppresses the abdominal expansion portion from expanding and deploying forward when a collision load is input from the oblique front.

[0017] In the vehicle of the above-mentioned aspect, a tether is provided that restricts the abdominal expansion portion from inflating and deploying forward, so that when the abdominal expansion portion inflates and deploys, the abdominal expansion portion can be made to surround (wrap around) the abdomen of the occupant.

[0018] In the vehicle according to the above aspect, the tether may be joined to a tip portion of the abdominal expansion portion on an inner side in the vehicle width direction and a root portion of the abdominal expansion portion on an outer side in the vehicle width direction.

[0019] In the vehicle according to the above aspect, since the tether is joined so as to connect the tip end and the base end of the abdominal expansion portion, it is possible to ensure that the abdominal expansion portion surrounds the abdomen of the occupant when inflated and deployed.

[0020] An airbag device according to one aspect of the present invention includes an airbag that inflates and deploys between an occupant seated in a vehicle seat and a door disposed adjacent to the vehicle seat on the vehicle width direction outer side when a collision load is input from the diagonal front, and an inflator that supplies gas to the airbag when a collision load is input from the diagonal front. In the airbag device according to this aspect, the airbag has an abdominal expansion portion that inflates and deploys to surround a region extending from a vehicle width direction outer side portion to a part of a front portion of the abdomen of the occupant when a collision load is input from the diagonal front.

[0021] In the airbag device according to the above aspect, since the airbag has an abdominal expansion portion, when a collision load is input diagonally from the front to a vehicle equipped with the airbag device, the occupant moves diagonally forward with the abdominal expansion portion wrapped around the abdomen. Therefore, the abdominal expansion portion wrapped around the abdomen of the occupant can prevent the abdomen and chest of the occupant from receiving a strong impact force due to a collision with a structure (pillar, door trim, etc.) diagonally forward. Therefore, the airbag device according to the above aspect can protect the occupant even when a collision load is input diagonally from the front to the vehicle.

[0022] In the airbag device according to the above aspect, the airbag further has a shoulder expansion portion that expands and deploys between the occupant's outer shoulder in the vehicle width direction and the door when a collision load is input from the diagonal front, and the inflator may be provided in one inflator, and may supply gas to both the abdominal expansion portion and the shoulder expansion portion when a collision load is input from the diagonal front.

[0023] In the airbag device according to the above aspect, the abdominal inflation portion and the shoulder inflation portion can be inflated and deployed by a single inflator, so that the size of the device and the manufacturing costs can be reduced compared to a case in which separate inflators are provided for the abdominal inflation portion and the shoulder inflation portion. Also, because the abdominal inflation portion and the shoulder inflation portion are inflated and deployed by a single inflator, there is little risk of deviation in the deployment start timing, and the occupant can be protected in a stable state.

[0024] In the airbag device according to the above aspect, the gas supply passage to the abdominal inflation portion may be formed so as to pass through the shoulder inflation portion.

[0025] In the airbag device of the above-described aspect, the gas supply flow path to the abdominal expansion portion is formed to pass through the shoulder expansion portion, thereby making it possible to reduce the device size and manufacturing costs compared to a case in which separate gas supply flow paths are provided for the abdominal expansion portion and the shoulder expansion portion.

[0026] In the airbag device according to the above aspect, the airbag may be provided in a portion of the gas supply flow path between the abdominal expansion portion and the shoulder expansion portion, and may further have a throttle portion that restricts the flow of gas from the shoulder expansion portion to the abdominal expansion portion when a collision load is input from the diagonal front.

[0027] In the airbag device according to the above aspect, since the narrowing portion is provided between the abdominal inflation portion and the shoulder inflation portion, the flow of gas between the abdominal inflation portion and the shoulder inflation portion is restricted, and the inflated shapes of the abdominal inflation portion and the shoulder inflation portion can be stabilized. Therefore, the airbag device according to the above aspect is advantageous in protecting the occupant when the vehicle is subjected to a collision load input from the diagonal front.

[0028] In the airbag device according to the above aspect, the airbag may further include a tether that restricts the abdominal expansion portion from expanding and deploying forward when a collision load is input from the oblique front.

[0029] In the airbag device according to the above aspect, a tether is provided that restricts the abdominal expansion portion from expanding and deploying forward, so that when the abdominal expansion portion expands and deploys, the abdominal expansion portion can be made to surround (wrap around) the abdomen of the occupant. Effect of the Invention

[0030] In each of the above aspects, the occupant can be protected even when a collision load is input from the diagonal front. [Brief description of the drawings]

[0031] [Figure 1] FIG. 2 is a plan view showing a partial configuration of a front part of a vehicle according to an embodiment. [Diagram 2] FIG. 2 is a front view showing a seat belt 5 and its surrounding structure. [Diagram 3] FIG. 2 is a side view showing the airbag device in an inflated and deployed state. [Figure 4] FIG. 2 is a perspective view showing the airbag device in an inflated and deployed state. [Diagram 5] FIG. 2 is a plan view showing a deployment mode of the airbag device for an occupant. [Figure 6] FIG. 2 is a front view showing a deployment mode of the airbag device for an occupant. [Figure 7] FIG. 2 is a side view showing a deployment mode of the airbag device for an occupant. [Figure 8] FIG. 2 is a development view showing the configuration of the airbag device. [Figure 9] FIG. [Figure 10] 1A to 1C are schematic diagrams showing the movement of an occupant during a frontal diagonal collision. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the embodiment described below is an example of the present invention, and the present invention is not limited to the embodiment described below except for the essential configuration.

[0033] In the figures used in the following description, "FR" indicates the front of the vehicle, "RR" indicates the rear of the vehicle, "LH" indicates the left side of the vehicle, "RH" indicates the right side of the vehicle, "UP" indicates the top of the vehicle, and "LO" indicates the bottom of the vehicle.

[0034] 1. Front structure of vehicle 1 The front structure of the vehicle 1 will be described with reference to Fig. 1. Note that Fig. 1 shows only a part of the front structure of the vehicle 1.

[0035] As shown in Fig. 1, a vehicle 1 includes an instrument panel 10 provided at the front of a vehicle interior 1a so as to extend in the vehicle width direction. Vehicle seats 11, 12 are arranged behind the instrument surface and the panel 10 within the vehicle interior 1. The vehicle seats 11, 12 are arranged side by side in the vehicle width direction, and a center console 14 is arranged between them.

[0036] A steering wheel 13 is disposed in front of the left vehicle seat 11. Furthermore, the vehicle 1 is provided with a seat belt 15 for protecting an occupant 500 when a collision load is input to the vehicle 1. Although not shown in FIG. 1, seat belts are also provided for other vehicle seats in the vehicle 1 so that the occupants can wear them.

[0037] In the vehicle 1, the vehicle seats 11, 12 are each arranged so as to be slidable in the front-rear direction.

[0038] 2. Seat belt 15 installation style and airbag device 23 placement location The manner in which the seat belt 15 is worn and the location of the airbag device 23 will be described with reference to Fig. 2. Fig. 2 is a front view of an occupant 500 seated in the vehicle seat 11, as viewed from the front side.

[0039] 2, a retractor 18 that supports the seat belt 15 so that it can be wound up is connected to one end of the seat belt 15. A lap anchor 21 that fixes the other end of the seat belt 15 to the vehicle body (for example, a side sill SS on the floor panel FP) is connected to the other end of the seat belt 15.

[0040] Further, a tongue 19 is connected to the seat belt 15 so as to be slidable along the seat belt 15. The tongue 19 can be latched to a buckle 20 fixed to the seat cushion 11b of the vehicle seat 11.

[0041] A shoulder anchor 17 is attached to a center pillar 16 of the vehicle 1 at a position above the seat back 11a of the vehicle seat 11. The seat belt 15 can be wound / pulled out via the shoulder anchor 17.

[0042] The seat belt 15 fits snugly around the occupant 500 seated in the vehicle seat 11, from the left shoulder 500a via the chest 500b to the right waist 500c, and from the right side of the waist 500c to the left side.

[0043] The seat belt 15 is configured so as not to restrain the abdomen 500d of the occupant 500.

[0044] An airbag device 23 is built into the seat back 11a of the vehicle seat 11 in a portion A on the outer side in the vehicle width direction. The airbag device 23 is configured to inflate and deploy when a lateral G force of a predetermined value or more is detected with respect to the vehicle 1.

[0045] 3. Deployment form of the airbag 230 in the airbag device 23 The deployment form of the airbag 230 in the airbag device 23 will be described with reference to FIGS.

[0046] As shown in Figures 3 and 4, the airbag 230 in the airbag device 23 has a shoulder inflation portion 230a that can be inflated and deployed between the seat back 11a of the vehicle seat 11 and the door 22, and an abdominal inflation portion 230b that can be inflated and deployed in the vehicle width direction from a lower portion of the seat back 11a of the vehicle seat in front of the seat back 11a.

[0047] The airbag 230 also has a tether 230c joined to the deployment tip and base of the abdominal expansion portion 230b. The tether 230c restricts the tip side portion of the abdominal expansion portion 230b from inflating and deploying forward when inflated and deploys, and has a function of pulling the tip of the abdominal expansion portion 230b backward so that the portion extends to the middle portion of the seat back 11a in the vehicle width direction while moving away from the seat back 11a forward.

[0048] 3, the abdominal expansion portion 230b of the airbag 230 has a portion that extends obliquely upward along the door 22 from a portion close to the lower end of the seatback 11a, and a portion that extends inward in the vehicle width direction along the seatback 11a from a portion close to the armrest 22a of the door 22. Such an inflated and deployed posture of the abdominal expansion portion 230b is achieved by a tether 230c.

[0049] Here, since the airbag device 23 is fixed to the seat back 11a of the vehicle seat 11, even if the vehicle seat 11 is slid in the front-to-rear direction, the relative positional relationship between the shoulder inflation portion 230a and the abdominal inflation portion 230b and the vehicle seat 11 at the time of inflation and deployment does not change.

[0050] 4. Deployment of the airbag 230 against the occupant 500 The deployment of the airbag 230 with respect to the occupant 500 will be described with reference to FIGS.

[0051] 5 to 7, the shoulder inflation portion 230a and the abdominal inflation portion 230b are inflated and deployed when a lateral G force of a predetermined value or more is detected for the vehicle 1. The shoulder inflation portion 230a deploys between the shoulder 500a (the outer shoulder in the vehicle width direction) of the occupant 500 and the door 22 or the center pillar 16.

[0052] When a lateral G force equal to or greater than a predetermined value is detected for the vehicle 1, the abdominal expansion portion 230b is deployed to surround a portion of the occupant 500 from the outer flank of the abdomen 500d to the middle portion in the vehicle width direction. As shown in Fig. 6, the abdominal expansion portion 230b is deployed below a portion of the seat belt 15 that extends in an oblique direction from the shoulder portion 500a to the waist portion 500c. In addition, the abdominal expansion portion 230b is deployed below the arms 500e of the occupant 500 (the arms on the outer sides in the vehicle width direction).

[0053] Here, an occupant 500 seated in the vehicle seat 11 may rest his / her arm 500e on the outer side in the vehicle width direction on the armrest 22a of the door 22 before a collision load is input to the vehicle 1. Even in such a case, as shown in Fig. 7, when a lateral G force of a predetermined value or more is detected for the vehicle 1, the abdominal expansion section 230b that expands and deploys lifts the arm 500e of the occupant 500 upward and deploys from a portion B between the armrest 22a and the arm 500e so as to wrap around the front of the abdomen 500d.

[0054] 5. Detailed Structure of the Airbag Device 23 The detailed structure of the airbag device 23 will be described with reference to Fig. 8. Fig. 8 is a development view showing a state in which the airbag 230 of the airbag device 23 is developed.

[0055] As shown in FIG. 8, the airbag device 23 includes an airbag 230 made of a base fabric, and an inflator 231 that supplies gas to the airbag 230 when a lateral G force equal to or greater than a predetermined value is detected.

[0056] The airbag 230 has shoulder inflatable base cloth portions 230a1 and 230a2, abdominal inflatable base cloth portions 230b1 and 230b2, a tether 230c, and narrowing portions 230e1 and 230e2. The shoulder inflatable portion 230a (see FIG. 4, etc.) is formed by folding back the base cloth at a folding line Lp and joining an edge of the shoulder inflatable base cloth portion 230a1 to an edge of the shoulder inflatable base cloth portion 230a2. The inflator 231 is fixed to the shoulder inflatable base cloth portion 230a2 near the folding line Lp.

[0057] Abdominal expansion portion 230b (see FIG. 4, etc.) is formed by folding back the base fabric at folding back line Lp and joining an edge of abdominal expansion base fabric portion 230b1 to an edge of abdominal expansion base fabric portion 230b2. Tether 230c passes outside (rear side) of abdominal expansion portion 230b, and rear end portion 230d is joined to the base portion of abdominal expansion portion 230b.

[0058] The restrictor portion 230e1 and the restrictor portion 230e2 each have restrictor holes 230f1 and 230f2, which are semicircular holes. The restrictor portion 230e1 and the restrictor portion 230e2 are joined to each other so that the restrictor holes 230f1 and 230f2 form a substantially circular hole. As a result, the gas supply flow paths of the shoulder inflation portion 230a and the abdominal inflation portion 230b are continuous, while the gas flow between them is restricted. A vent hole 230m is formed in the abdominal inflation base fabric portion 230b1, which corresponds to the side opposite the occupant of the abdominal inflation portion 230b, and the degree of inflation of the airbag 230 is adjusted by releasing gas to the outside of the airbag 230.

[0059] 6. Protection of occupant 500 when collision load is input to vehicle 1 Protection of the occupant 500 when a collision load is input to the vehicle 1 will be described with reference to FIGS.

[0060] As shown in Fig. 9, in this embodiment, a description will be given of a diagonal front collision as indicated by arrows C1 and C2. Here, a virtual line L1 is assumed to pass through the center of the vehicle 1 in the vehicle width direction and extend in the front-rear direction. In this case, it is assumed that the input direction of the collision load indicated by arrows C1 and C2 is an oblique collision load input to the vehicle 1 from an area between virtual lines L2 and L3 drawn at an angle θ1 with respect to the virtual line L1, and virtual lines L4 and L5 drawn at an angle θ2 with respect to the virtual line L1.

[0061] The angle θ1 is greater than 0° and less than 30° (for example, 25°), and the angle θ2 is equal to or greater than 30° and equal to or less than 60° (for example, 55°).

[0062] When a collision load as shown by the arrow C1 is input to the vehicle 1, the occupant 500 riding in the vehicle 1 moves in the direction opposite to the arrow C1. For example, the occupant 500 seated in the left front vehicle seat 11 moves diagonally forward to the left as shown by the arrow D as shown in FIG.

[0063] When the occupant 500 moves diagonally forward due to a collision in this way, it is conceivable that the abdomen 500d, chest 500b, etc. may strike a front pillar, door trim, or the like in the direction in which the occupant 500 moves.

[0064] However, in the airbag device 23 provided in the vehicle 1 according to this embodiment, the airbag 230 includes the abdominal inflation portion 230b in addition to the shoulder inflation portion 230a, so that the occupant 500 moves as shown by the arrow D with the inflated abdominal inflation portion 230b wrapped around the abdomen 500d while protecting the shoulder 500a of the occupant 500. In this case, since the airbag device 23 is fixed to the seat back 11a, the abdominal inflation portion 230b of the airbag 230 also moves together with the occupant 500.

[0065] In this way, when an oblique collision load is input to the vehicle 1, the occupant 500 moves with the abdominal expansion portion 230b wrapped around the abdomen 500d, so that it is possible to prevent the abdomen 500d, the chest 500b, etc. from receiving a strong impact force due to a collision with a front pillar, a door trim, etc. Therefore, it is possible to protect the occupant 500 even during an oblique collision as shown in FIG.

[0066] Although detailed description and illustration are omitted, in the vehicle 1 according to this embodiment, the right vehicle seat 12 in the front part of the passenger compartment 1a also has an airbag device 23 with a similar configuration built in. The rear vehicle seats also have airbag devices 23 built in on both the left and right sides. This makes it possible to protect each occupant 500 in the passenger compartment 1a of the vehicle 1 during an oblique collision.

[0067] 7.Effects In the airbag device 23 according to this embodiment and the vehicle 1 equipped with the same, the airbag 230 has an abdominal expansion portion 230b, so that when a collision load is input from the diagonal front (the direction indicated by the arrows C1 and C2 in FIG. 9), the occupant 500 moves diagonally forward (diagonally forward to the left in this embodiment) with the abdominal expansion portion 230b wrapped around the abdomen 500d. Therefore, the abdominal expansion portion 230b wrapped around the abdomen 500d of the occupant 500 can prevent the abdomen 500d and chest 500b of the occupant 500 from receiving an impact force from a structure (pillar, door trim, etc.) in the diagonal front. Therefore, in the airbag device 23 and the vehicle 1 equipped with the same, the occupant 500 can be protected even when a collision load is input from the diagonal front.

[0068] In the airbag device 23 according to this embodiment and the vehicle 1 equipped with the same, the abdominal inflation portion 230b and the shoulder inflation portion 230a can be inflated and deployed by a single inflator 231, so the device size and manufacturing costs can be reduced compared to when separate inflators are provided for the abdominal inflation portion 230b and the shoulder inflation portion 230a. In addition, because the abdominal inflation portion 230b and the shoulder inflation portion 230a are inflated and deployed by a single inflator 231, there is little risk of deviation in the deployment start timing, and the occupant 500 can be protected in a stable state.

[0069] Furthermore, in the airbag device 23 of this embodiment and the vehicle 1 equipped with the same, the gas supply flow path to the abdominal expansion portion 230b of the airbag 230 is formed to pass through the shoulder expansion portion 230a, so that the device size and manufacturing costs can be reduced compared to the case where separate gas supply flow paths are provided for the abdominal expansion portion 230b and the shoulder expansion portion 230a.

[0070] In addition, the airbag device 23 according to this embodiment and the vehicle 1 equipped with the same have the narrowing portions 230e1, 230e2 between the abdominal inflation portion 230b and the shoulder inflation portion 230a of the airbag 230, so that the flow of gas between the abdominal inflation portion 230b and the shoulder inflation portion 230a is restricted, and the inflated shapes of the abdominal inflation portion 230b and the shoulder inflation portion 230a can be stabilized. Therefore, the airbag device 23 and the vehicle 1 equipped with the same are advantageous in protecting the occupant 500 when a collision load is input from the diagonal front as shown by the arrows C1, C2 in FIG. 9.

[0071] Furthermore, in the airbag device 23 of this embodiment and the vehicle 1 equipped with the same, a tether 230c is provided that restricts the abdominal expansion portion 230b of the airbag 230 from expanding and deploying forward, so that the abdominal expansion portion 230b can be wrapped around the abdomen 500d of the occupant 500 when the abdominal expansion portion 230b is inflated and deployed.

[0072] In the airbag device 23 according to this embodiment and the vehicle 1 equipped with the same, the tether 230c is joined so as to connect the tip end and the base end of the abdominal expansion portion 230b, so that the abdominal expansion portion 230b surrounds the abdomen 500d of the occupant 500 when inflated and deployed, which is advantageous in preventing the occupant 500 from moving diagonally forward.

[0073] As described above, the airbag device 23 according to this embodiment and the vehicle 1 equipped with the same can protect the occupant 500 even when a collision load is input from the diagonal front (for example, from the direction indicated by the arrows C1 and C2 in FIG. 9).

[0074] [Variations] In the above embodiment, the airbag 230 of the airbag device 23 has the shoulder inflation portion 230a and the abdominal inflation portion 230b, but the present invention can also employ an airbag having at least an abdominal inflation portion. That is, the shoulder inflation portion does not necessarily have to be provided integrally with the abdominal inflation portion.

[0075] In the above embodiment, gas can be supplied from one inflator 231 to both the shoulder inflation portion 230a and the abdominal inflation portion 230b, but in the present invention, an inflator may be provided for each of the shoulder inflation portion and the abdominal inflation portion. In this case, it is not necessary for the gas supply passage to the shoulder inflation portion to pass through the abdominal inflation portion, and a stable inflated shape can be achieved regardless of the sizes of the shoulder inflation portion and the abdominal inflation portion.

[0076] In the above embodiment, the airbag 230 has the tapered portions 230e1, 230oe2. However, in the present invention, the airbag does not necessarily have to have the tapered portions.

[0077] In the above embodiment, the tether 230c is disposed on the outer side of the abdominal expansion portion 230b in the airbag 230, but the tether may be provided in the inner space of the abdominal expansion portion. That is, the form of the tether is not limited to that in the above embodiment as long as the abdominal expansion portion is pulled so as to be wrapped around the abdomen of the occupant when inflated and deployed. [Explanation of symbols]

[0078] 1 vehicle 11,12 Vehicle seat 15 Seatbelts 22 Doors 22a Armrest 23 Airbag device 230 Airbag 230a Shoulder expansion 230b Abdominal expansion 230c Tether 230e1, 230e2 Squeezing section 230f1, 230f2 aperture 231 Inflator

Claims

1. A vehicle seat; A door arranged adjacent to the vehicle seat on an outer side in a vehicle width direction; an airbag device having an airbag that inflates and deploys between an occupant seated in the vehicle seat and the door when a collision load is input from an oblique front direction; Equipped with the airbag has an abdominal inflation portion that is inflated and deployed to be located in a region extending from an outer portion in a vehicle width direction to a part of a front portion of the abdomen of the occupant when a collision load is input from the oblique front. vehicle.

2. the airbag further has a shoulder inflating portion that inflates and deploys between the door and an outer shoulder of the occupant in a vehicle width direction when a collision load is input from the oblique front, the airbag device further includes an inflator that supplies gas to the abdominal inflation portion and the shoulder inflation portion when a collision load is input from the oblique front.

2. The vehicle of claim 1.

3. The gas supply flow path to the abdominal expansion portion is formed to pass through the shoulder expansion portion.

3. A vehicle as claimed in claim 2.

4. the airbag further has a throttle portion provided in a portion of the gas supply flow path between the abdominal expansion portion and the shoulder expansion portion, and which restricts the flow of gas from the shoulder expansion portion to the abdominal expansion portion when a collision load is input from the oblique front.

4. The vehicle according to claim 3.

5. The airbag further includes a tether that restricts the abdominal expansion portion from expanding and deploying forward when a collision load is input from the oblique front. A vehicle according to any one of claims 1 to 4.

6. The tether is joined to a tip portion on an inner side in the vehicle width direction of the abdominal expansion portion and a root portion on an outer side in the vehicle width direction.

6. A vehicle as claimed in claim 5.

7. an airbag that inflates and deploys between an occupant seated in a vehicle seat and a door disposed adjacent to an outer side of the vehicle seat in a vehicle width direction when a collision load is input from an oblique front direction; an inflator that supplies gas to the airbag when a collision load is input from the oblique front; Equipped with the airbag has an abdominal expansion portion that expands and deploys to surround a region extending from an outer portion of the abdomen of the occupant in a vehicle width direction to a part of a front portion when a collision load is input from the oblique front. Airbag device.

8. the airbag further has a shoulder inflating portion that inflates and deploys between the door and an outer shoulder of the occupant in a vehicle width direction when a collision load is input from the oblique front, the inflator is provided in the airbag device and supplies the gas to both the abdominal inflation portion and the shoulder inflation portion when a collision load is input from the oblique front.

8. The airbag device according to claim 7.

9. The gas supply flow path to the abdominal expansion portion is formed to pass through the shoulder expansion portion.

9. The airbag device according to claim 8.

10. the airbag further has a throttle portion provided in a portion of the gas supply path between the abdominal expansion portion and the shoulder expansion portion and configured to restrict the flow of gas from the shoulder expansion portion to the abdominal expansion portion when a collision load is input from the oblique front.

10. The airbag device according to claim 9.

11. The airbag further includes a tether that restricts the abdominal expansion portion from expanding and deploying forward when a collision load is input from the oblique front.

11. The airbag device according to claim 7.

Images