JP6784558B2 - Vehicle occupant protection device - Google Patents

Description

The present invention relates to an occupant protection device for a vehicle such as an automobile.

In automobiles, research on autonomous driving has been started in recent years (Patent Document 1).

JP-A-2005-067483

By the way, in an autonomous vehicle, the driving state of the vehicle is controlled regardless of the intention of the occupant such as the driver. In this case, for example, in the case of automatically avoiding a collision, the control may be performed so as to drive closer to the limit performance of the vehicle as compared with the case where the driver operates the vehicle. For example, immediately before a collision, in order to avoid a collision, steering may be performed at the limit of the limit performance to control the collision so as to avoid the collision.
Then, for example, in a situation where the driving is controlled near the limit performance of the vehicle in this way, when the collision cannot be actually avoided, compared with the case where the collision is avoided under the steering of the driver. Collisions can occur under different circumstances than current cars.
For example, in a situation where the vehicle is suddenly decelerating due to automatic driving, the upper body of the occupant seated on the seat may move ahead of the seating position of the seat even if it can be supported by the three-point seat belt in the event of a collision. There is sex. Then, if a collision occurs in a situation where the upper body has moved to the front of the seat seating position before the collision, the occupant's upper body will move significantly forward from the seat seating position. Become. In addition, even if the front airbag begins to deploy due to the collision, the upper body will fall further forward due to the impact of the collision due to the fact that the upper body has moved ahead of the seating position of the seat before the collision. May not be able to support properly. For example, in the case of a front airbag that is deployed on the assumption that the upper body is positioned in the normal seating position, the upper body is sunk into the front airbag before the front airbag is properly deployed.
In addition to this, for example, in the case of an occupant who is distracted by something other than a collision and is not prepared for a collision, the upper body of the occupant moves far forward beyond the normally expected movement range at the time of a collision. There is a possibility that it will end up.

In this way, it is expected that vehicles such as automobiles need to have a occupant protection function different from that of current automobiles, for example, during automatic driving.

The vehicle occupant protection device according to the present invention includes an airbag device having a seat on which an occupant sits in the vehicle, a front airbag deployed in front of the upper body of the occupant seated on the seat, and a seat on the seat. It has a three-point seatbelt device that operates to restrain one shoulder of the vehicle in the width direction of the occupant and restrain the upper body to the seating position, and the front airbag is from the seating position of the seat. The front airbag is deployed so as to receive the upper body that has moved forward, and the front airbag that has been deployed allows the shoulder to enter at a portion where the shoulder of the upper body that has moved forward from the seating position abuts. A recess is formed, and the shoulder receiving recess is located on the other side in the vehicle width direction and in front of the other shoulder of the occupant, and is directed from the shoulder receiving recess toward one side in the vehicle width direction from the other side. One side forms the rear inclined surface .

Further, the vehicle occupant protection device according to the present invention includes a seat on which the occupant sits in the vehicle and an airbag device having a front airbag deployed in front of the upper body of the occupant seated on the seat. The front airbag is deployed so as to receive the upper body that has moved before the seating position of the seat, and in the deployed state, the shoulder of the upper body that has moved before the seating position comes into contact with the front airbag. In, a shoulder receiving recess into which the shoulder can be inserted is formed, and the portion in which the shoulder receiving recess is formed is developed so as to be harder than the other portions, and the upper body has moved to the front of the seating position. Support the shoulders .

Further, the vehicle occupant protection device according to the present invention includes an airbag device having a seat on which an occupant sits in the vehicle, a front airbag deployed in front of the upper body of the occupant seated on the seat, and the vehicle. It has a control unit that controls the operation of the airbag device according to the traveling state, and the front airbag is deployed and deployed so as to receive the upper body that has moved in front of the seating position of the seat. In this state, a shoulder receiving recess into which the shoulder can enter is formed at a portion where the shoulder of the upper body that has moved to the front of the seating position comes into contact, and the control unit automatically includes driving support for the vehicle. When there is a possibility of a collision during driving control or a collision during sudden deceleration, the front airbag is deployed so as to form the shoulder recess, and in other cases, the shoulder recess is formed. The front airbag is unfolded to support the upper body in the seating position as a whole .

In the present invention, the front airbag deployed in front of the upper body of the occupant seated on the seat is deployed so as to receive the upper body that has moved before the seating position of the seat, and in the deployed state, from the seating position. A shoulder receiving recess is formed in which the shoulder can enter at the portion where the shoulder of the upper body that has moved forward comes into contact. Therefore, for example, even if the upper body of the occupant seated on the seat moves in front of the seated position of the seat before the collision during automatic driving of the vehicle, the shoulder of the upper body is supported by the shoulder receiving recess to support the occupant. Can be protected.

FIG. 1 is an explanatory view of an automobile to which the vehicle occupant protection device according to the embodiment of the present invention can be applied. FIG. 2 is an explanatory view of a normal occupant protection device in the automobile of FIG. FIG. 3 is an explanatory view of a vehicle occupant protection device according to the first embodiment of the present invention. FIG. 4 is an explanatory view of an operating state in which the front airbag of the front airbag device of FIG. 3 is deployed. FIG. 5 is an explanatory diagram of an example of the occupant protection state when deployed as shown in FIG. 4A. FIG. 6 is an explanatory diagram of another example of the occupant protection state when deployed as shown in FIG. 4 (A). FIG. 7 is an explanatory view of the front airbag device according to the second embodiment of the present invention. FIG. 8 is an explanatory view of the front airbag device according to the third embodiment of the present invention. FIG. 9 is an explanatory view of the front airbag device according to the fourth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is an explanatory view of an automobile 1 to which the vehicle occupant protection device 10 according to the embodiment of the present invention can be applied.
FIG. 1 shows an automobile 1 as viewed from above. The automobile 1 is an example of a vehicle.
The automobile 1 of FIG. 1 has a vehicle body 2. In the passenger compartment 3 of the vehicle body 2, a plurality of seats 4 on which the occupants are seated are arranged. A steering wheel 5, an accelerator pedal (not shown), and a brake pedal are arranged in front of the front right seat 4. When the occupant seated on the seat 4 operates the steering wheel 5 and the like, the automobile 1 makes a forward, stop, reverse, right turn, and left turn.

By the way, in automobile 1, research on automatic driving has been started in recent years. Some autonomous driving is a driving support type that simply warns or interpolates the operation of the occupant, but in the future, for example, by setting a destination, it will automatically travel to that destination. Things are expected to be realized.
Further, in the automatic driving, for the protection of the occupants and the like, for example, the front image sensor 31 arranged forward in the occupant room 3, the rear image sensor 31 arranged backward in the occupant room 3, and the left and right sides of the vehicle body 2. The right image sensor 31 and the left image sensor 31 arranged on both sides are used to observe the surrounding environment of the traveling vehicle 1 based on the images captured by these sensors, and when another vehicle 1 or the like approaches, a collision occurs. It is important to implement occupant protection control to avoid.

FIG. 2 is an explanatory diagram of a normal occupant protection device in the automobile 1 of FIG. FIG. 2 shows a front airbag 15 deployed in front of the upper body of an occupant seated on the seat 4, a side airbag deployed on the outside of the upper body, and a three-point type operating so as to restrain the upper body to the seating position. The seat belt 18 and the like are illustrated.

Then, as shown in FIG. 2A, when the upper body of the occupant before the collision is located in the seating position with the back to the seat 4 by being restrained by, for example, the seat belt 18, it is in a state of being separated from the upper body. The front airbag 15 can be deployed with. After that, when another automobile 1 or the like collides in front of the automobile 1, the upper body moves forward from the seating position, but the upper body moving forward can be supported by the deployed front airbag 15. Thereby, the occupant can be suitably protected.
However, for example, in the automobile 1 during automatic driving, the running state of the automobile 1 is controlled regardless of the intention of the occupant such as the driver. In this case, for example, in the case of automatically avoiding a collision, the control may be performed so as to travel closer to the limit performance of the vehicle as compared with the case where the driver operates the vehicle 1. For example, immediately before a collision, in order to avoid a collision, steering control at the limit of the limit performance may be performed to try to avoid the collision.

Then, for example, in a situation where the driving is controlled near the limit performance of the vehicle in this way, if the collision cannot be actually avoided and the collision occurs, the collision is being avoided by the steering of a general driver. A collision may occur under a different situation than in the case of a collision.
For example, as shown in FIG. 2B, under the situation of sudden deceleration by automatic driving, the shoulder of the upper body of the occupant seated on the seat 4 moves significantly in front of the seating position of the seat 4. there is a possibility. If the front airbag 15 is deployed while the shoulders of the upper body are moving forward of the normally expected range, the upper body will hit the front airbag 15 that has not been fully deployed. In this case, the front airbag 15 may not be able to favorably support the upper body.
In addition to this, as shown in FIG. 2C, for example, even if one shoulder of the upper body is supported by the three-point seat belt 18 before the collision, the other shoulder not supported by the seat belt 18 ( In the figure, the inner shoulder on the center side in the vehicle width direction) may move forward significantly. Even in this case, the shoulder portion of the upper body may hit the undeployed front airbag 15, and the front airbag 15 may not be able to support the upper body suitably.
In this way, if a collision occurs in a situation where the upper body has moved to the front of the seating position of the seat 4 before the collision, even if the front airbag 15 begins to deploy due to the collision, the shoulders of the upper body before the collision. Due to the fact that the portion has moved to the front of the seating position of the seat 4, there is a possibility that the upper body that falls further forward due to the impact of the collision cannot be suitably supported. In the case of the front airbag 15 that is deployed on the assumption that the shoulder of the upper body is positioned in the normal seating position, the upper body is sunk into the front airbag 15 before the front airbag 15 is properly deployed. It ends up.
In addition to this, for example, in the case of an occupant who is distracted by something other than a collision and is not prepared for a collision, the upper body of the occupant moves far forward beyond the normally expected movement range at the time of a collision. There is also the possibility of doing so.
As described above, it is expected that a vehicle such as the automobile 1 needs to have a occupant protection function different from that of the current automobile 1 during automatic driving, for example.

FIG. 3 is an explanatory view of the vehicle occupant protection device 10 according to the first embodiment of the present invention.

Further, FIG. 3 shows an automatic driving control device 30 together with the occupant protection device 10. The automatic driving control device 30 includes various types of vehicle exterior imaging sensors 31, an automatic driving control unit 32, a steering actuator 33, a brake actuator 34, and a power source 35, as described above.
The steering actuator 33 steers the automobile 1 instead of the steering wheel 5. The brake actuator 34 brakes the automobile 1 instead of the brake pedal. The power source 35 is, for example, a gasoline engine or an electric motor. The automatic driving control unit 32 controls the steering actuator 33, the brake actuator 34, and the power source 35 according to, for example, a traveling path to the destination. Further, an approaching object is identified based on the image of the external image sensor 31, and if a collision with the approaching object is expected, the steering actuator 33, the brake actuator 34, and the power source 35 are controlled so as to avoid the collision. To do.

The occupant protection device 10 of FIG. 3 includes an occupant position sensor 11, a G sensor 12, an occupant protection control unit 13, a front airbag device 14, and a three-point seatbelt device 17.

The occupant position sensor 11 detects the position of the head or upper body of the occupant seated on the seat 4. Based on the seating position with the back on the seat 4, the amount of movement forward or the amount of movement to the left and right sides in the vehicle width direction is detected. The occupant position sensor 11 may be composed of, for example, a plurality of proximity sensors arranged in the detection direction.

The G sensor 12 detects the acceleration acting on the automobile 1. The direction of the detected acceleration may be the front-back direction, the left-right direction, or the up-down direction.

The front airbag device 14 includes a front airbag 15 that deploys in front of the upper body of an occupant seated on the seat 4, and an inflator 16 that discharges gas into the front airbag 15.

The three-point seatbelt device 17 includes a seatbelt 18 hung on both sides of the waist of an occupant seated on the seat 4 and in front of one shoulder, and an actuator (not shown) for winding the seatbelt 18.

An external imaging sensor 31, an automatic driving control unit 32, a G sensor 12, an occupant position sensor 11, a front airbag device 14, and a three-point seatbelt device 17 are connected to the occupant protection control unit 13.

Then, the occupant protection control unit 13 controls the operation of the occupant protection device 10 according to, for example, the traveling state of the automobile 1. Specifically, it controls the operation of the front airbag device 14 and the three-point seatbelt device 17.

FIG. 4 is an explanatory view of an operating state in which the front airbag 15 of the front airbag device 14 of FIG. 3 is deployed.

The occupant protection control unit 13 determines the traveling state of the automobile 1 when the occupant is in the automobile 1. The occupant protection control unit 13 determines whether or not the vehicle is in automatic driving, for example, based on the automatic driving signal from the automatic driving control unit 32.
Further, the occupant protection control unit 13 determines the presence or absence of an approaching object based on the image of the vehicle exterior image sensor 31, and further determines the possibility of collision with the approaching object.
Further, the occupant protection control unit 13 determines whether or not the automobile 1 is suddenly decelerating based on the detected acceleration of the G sensor 12.
Further, whether the occupant protection control unit 13 significantly moves the occupant's upper body forward from the seated position based on the detection value of the occupant position sensor 11 or the information on the automatic driving control status from the automatic driving control unit 32. Judge or estimate whether or not. The occupant protection control unit 13 may determine this movement based on whether or not it exceeds the normally assumed range of FIG. 2 (A).
Then, when there is a possibility of a collision during automatic driving control, a collision may occur during sudden deceleration, and when the upper body is greatly moved forward before the collision, the occupant protection control unit 13 , As shown in FIG. 4A, the front airbag 15 is deployed.
In this case, the front airbag 15 forms a shoulder receiving recess 15D on the center side in the vehicle width direction with respect to the contact surface that hits the upper body.
Further, on the remaining contact surface, an inclined surface 15S continuous from the shoulder receiving recess 15D is formed. The inclined surface 15S is inclined toward the outside in the vehicle width direction so that one side is behind the other side. The inclined surface S is a surface substantially parallel to the line connecting both shoulders of the upper body moving forward from the seating position.

On the other hand, in any of the above cases, when the upper body before the collision is in the seated position, the occupant protection control unit 13 deploys the front airbag 15 in a substantially rectangular shape as shown in FIG. 4 (B). Let me. In this case, the front airbag 15 is greatly expanded so as not to form the shoulder receiving recess 15D.

FIG. 5 is an explanatory diagram of an example of the occupant protection state when deployed as shown in FIG. 4A.
Here, since one shoulder of the upper body is supported by the three-point seat belt 18, the upper body before the collision has the other shoulder on the center side in the vehicle width direction in front as shown in FIG. 5 (A). It is moving forward more than the seating position in a tilted posture.
Further, the front airbag 15 is deployed so as to form a shoulder receiving recess 15D on the center side in the vehicle width direction.
Then, when an approaching object actually collides with the front portion of the vehicle body 2 along the front-rear direction, the deployed front airbag 15 moves forward of the seating position of the seat 4 before the collision, as shown in FIG. 5 (B). Supports the shoulders of the moving upper body. The other shoulder of the upper body, which has moved forward from the seating position, enters the shoulder receiving recess 15D by moving further forward. The upper body is supported on the other shoulder and the impact is absorbed.

FIG. 6 is an explanatory diagram of another example of the occupant protection state when deployed as shown in FIG. 4 (A). In this case, the approaching object hits the vehicle body 2 from the diagonally forward direction. On the other hand, in FIG. 5, the vehicle body 2 is hit from the front.
Here, as shown in FIG. 6A, the upper body before the collision moves forward more than the seating position in an inclined posture in which the other shoulder on the center side in the vehicle width direction is in front.
Then, when an approaching object actually collides with the front portion of the vehicle body 2 from an oblique direction, the deployed front airbag 15 moves to the front of the seating position of the seat 4 before the collision, as shown in FIG. 6B. Receives and supports the upper body. The upper body, which has moved forward from the seating position, further moves diagonally forward to hit the inclined surface 15S, which is a surface substantially parallel to both shoulders. The upper body is totally supported by the inclined surface 15S, and the impact is absorbed.

As described above, in the present embodiment, the front airbag 15 deployed in front of the upper body of the occupant seated on the seat 4 is deployed so as to receive the upper body that has moved in front of the seating position of the seat 4. In the unfolded state, the shoulder receiving recess 15D is formed so that the shoulder can enter at the portion where the shoulder of the upper body that has moved to the front of the seating position comes into contact. Therefore, for example, even if the upper body of the occupant seated on the seat 4 moves in front of the seating position of the seat 4 before the collision during automatic driving of the vehicle, the shoulder of the upper body is supported by the shoulder receiving recess 15D. , Can protect the occupants.

In the present embodiment, the upper body of the occupant seated on the seat 4 can be restrained in the seating position with one shoulder held down by the three-point seat belt device 17. Therefore, for example, even if the upper body of the occupant seated on the seat 4 moves in front of the seating position of the seat 4 before the collision during the automatic driving of the vehicle, the entire upper upper body does not move significantly forward. , Only the other shoulder side moves forward greatly, and as a whole, only the other shoulder side easily moves forward. As a result, the front airbag 15 need only be formed with one shoulder receiving recess 15D so as to correspond only to the other shoulder of the occupant. Then, as in the present embodiment, the inclined surface 15S can be formed from the shoulder receiving recess 15D toward one side in the vehicle width direction, with one side behind the other side.
Further, by forming the inclined surface 15S in which one side is behind the other side from the shoulder receiving recess 15D toward one side in the vehicle width direction in this way, the vehicle moves forward in an oblique posture with the other shoulder in front. The entire upper body can be received and supported by the inclined surface 15S of the front airbag 15. It can support the entire upper body, which moves forward in an oblique posture with the other shoulder in front, in a stable state, and can absorb the impact in that state.
Further, when the shoulder receiving recess 15D receives the other shoulder and the impact input direction is diagonally forward on either the left or right side, or when the impact input is from diagonally forward on the other side, the occupant upper body is the same as when moving forward. The injury value can be reduced by receiving and supporting the strong shoulder portion by the shoulder receiving recess 15D.
On the other hand, in the case of impact input from diagonally forward on one side, the input is from the front side of the occupant's upper body, but in this case, the inclined surface 15S supports the front surface of the occupant's upper body as a whole, and the injury value. Can be reduced.

In the present embodiment, the control unit that controls the operation of the airbag device according to the traveling state of the vehicle is a shoulder support in the case of a collision during automatic driving control including driving assistance for the vehicle or a collision during sudden deceleration. The front airbag 15 is deployed so as to form the recess 15D, and in other cases, the front airbag 15 is deployed so that the shoulder receiving recess 15D is not formed, and the entire upper body that was in the seating position before the collision is entirely covered. Support Therefore, the front airbag 15 can be appropriately deployed according to each state regardless of whether the upper body of the occupant before the collision is in the seating position of the seat 4 or is moved in front of the seating position. it can.

In the present embodiment, the detection unit detects the position of the upper body of the occupant seated on the seat 4. Therefore, the position of the upper body of the occupant before the collision can be actually detected, and the front airbag 15 can be appropriately deployed according to each position.

[Second Embodiment]
Next, the vehicle occupant protection device 10 according to the second embodiment of the present invention will be described. Hereinafter, the same reference numerals as those of the first embodiment will be used for the same configuration, and the differences from the first embodiment will be mainly described.

FIG. 7 is an explanatory view of the front airbag device 14 according to the second embodiment of the present invention.

The front airbag 15 of the front airbag device 14 has a first bag body 41 and a second bag body 42.
The first bag body 41 is a bag body developed on the outside in the vehicle width direction. The unfolded first bag body 41 forms a rear surface (contact surface) inclined so that the outer side protrudes rearward from the inner side in the vehicle width direction.
The second bag body 42 is a bag body provided side by side on the center side in the vehicle width direction of the first bag body 41. The unfolded second bag body 42 projects rearward from the end portion on the vehicle width direction center side of the first bag body 41. Further, the rear end surface of the developed second bag body 42 is formed into a concave curved surface shape by the shoulder receiving recess 15D.
As described above, the front airbag 15 of the present embodiment has two air chambers by the first bag body 41 and the second bag body 42.
The first bag body 41 and the second bag body 42 are provided side by side in the vehicle width direction.

The inflator 16 supplies gas to the first bag body 41 and the second bag body 42 by a start signal from the occupant protection control unit 13. In particular, when there is a possibility of a collision during automatic driving control, a collision during a sudden deceleration, and when the upper body is greatly moved forward before the collision, the second bag body 42 The gas is supplied so that the internal pressure becomes higher than the internal pressure of the first bag body 41.

As a result, in the deployed front airbag 15, the second bag body 42 in which the shoulder receiving recess 15D is formed becomes harder than the first bag body 41 which is the remaining portion thereof. Therefore, the position and shape of the shoulder receiving recess 15D can be maintained even when the load is concentrated on the shoulder receiving recess 15D, and the impact can be absorbed.

In the case of a collision other than the above-mentioned traveling state, the inflator 16 may release gas so that the second bag body 42 and the first bag body 41 have the same internal pressure. As a result, the entire second bag body 42 and the first bag body 41 can be developed with substantially uniform pressure as a whole, and can be developed in the same manner as in FIG. 4 (B).

[Third Embodiment]
Next, the vehicle occupant protection device 10 according to the third embodiment of the present invention will be described. Hereinafter, the same reference numerals as those of the second embodiment will be used for the same configuration, and the differences from the second embodiment will be mainly described.

FIG. 8 is an explanatory view of the front airbag device 14 according to the third embodiment of the present invention.

The front airbag 15 of the front airbag device 14 has a first bag body 41 and a second bag body 42.
Further, the first bag body 41 and the second bag body 42 have a vent hole 51 that communicates with each other and the outside air, and a vent hole 51 that communicates the first bag body 41 and the second bag body 42.
The vent hole 51 is closed until a predetermined set pressure is applied, and opens when a pressure equal to or higher than the set pressure starts to act.
In the present embodiment, the vent hole 51 that communicates the second bag body 42 with the outside air has a set pressure higher than that of the vent hole 51 that communicates the first bag body and the outside air.

The inflator 16 supplies gas to the first bag body 41 and the second bag body 42 by a start signal from the occupant protection control unit 13. When there is a possibility of collision during automatic driving control, or when there is a possibility of collision during sudden deceleration, and when the upper body is greatly moved forward before the collision, the inflator 16 is the first bag body. Gas may be supplied by giving priority to the second bag body 42 over 41.
As a result, the second bag body 42 in which the shoulder receiving recess 15D is formed becomes harder than the first bag body 41 which is the remaining portion thereof, and the shoulder receiving recess 15D is subjected to a concentrated load even when the load is concentrated on the shoulder receiving recess 15D. The position and shape of 15D can be maintained, and the impact can be absorbed.

Further, the vent hole 51 that communicates the first bag body 41 and the second bag body 42 is lower than the set pressure of the vent hole 51 that communicates the second bag body 42 and the outside air, for example, and the first bag body and the outside air The pressure may be higher than the set pressure of the vent hole 51 that communicates with the vent hole 51.
As a result, after the second bag body 42 is deployed at a higher pressure than the first bag body 41, the first bag body 42 having a larger capacity than the second bag body 42 while maintaining the high internal pressure of the second bag body 42. The bag body 41 can be efficiently deployed.

In the case of a collision other than the above-mentioned traveling state, the inflator 16 may release gas so that the second bag body 42 and the first bag body 41 have the same internal pressure. As a result, the entire second bag body 42 and the first bag body 41 can be developed with substantially uniform pressure as a whole, and can be developed in the same manner as in FIG. 4 (B).

[Fourth Embodiment]
Next, the vehicle occupant protection device 10 according to the fourth embodiment of the present invention will be described. Hereinafter, the same reference numerals as those of the first embodiment will be used for the same configuration, and the differences from the first embodiment will be mainly described.

FIG. 9 is an explanatory view of the front airbag device 14 according to the fourth embodiment of the present invention.

The front airbag 15 of the front airbag device 14 has a single bag body 61 and a tether 62.
The tether 62 is passed between the rear surface and the front surface of the single bag body 61 at a position closer to the center side in the vehicle width direction of the single bag body 61 in order to form the shoulder receiving recess 15D.

The inflator 16 is a occupant protection control unit when there is a possibility of collision during automatic driving control, when there is a possibility of collision during sudden deceleration, and when the upper body is greatly moved forward before the collision. Gas is supplied to the first bag body 41 by the start signal from 13.
As a result, the tether 62 extends along the other side of the deployed front airbag 15. Therefore, a structure can be formed by the tether 62 and the other side surface of the front airbag 15, and the position and shape of the shoulder receiving recess 15D can be maintained even when a load is concentrated on the shoulder receiving recess 15D, and an impact can be generated. Can be absorbed.

In the case of a collision other than the above-mentioned traveling state, the tether 62 may be cut. As a result, the second bag body 42 can be unfolded at a substantially uniform pressure as a whole, and can be unfolded in the same manner as in FIG. 4 (B).

The above embodiments are examples of preferred embodiments of the present invention, but the present invention is not limited thereto, and various modifications or modifications can be made without departing from the gist of the invention.

1 ... Automobile (vehicle)
2 ... Body 3 ... Passenger room 4 ... Seat 5 ... Handle 10 ... Crew protection device 11 ... Crew position sensor 12 ... G sensor 13 ... Crew protection control unit 14 ... Front airbag device 15 ... Front airbag 15D ... Shoulder recess 15S ... Inclined surface 16 ... Inflator 17 ... Three-point seatbelt device 18 ... Seatbelt 30 ... Automatic operation control device 31 ... Image sensor 32 ... Automatic operation control unit 33 ... Steering actuator 34 ... Brake actuator 35 ... Power source 41 ... First bag body 42 ... Second bag 51 ... Vent hole 61 ... Single bag 62 ... Tether

Claims (3)

The seat on which the occupant sits in the vehicle and
An airbag device having a front airbag deployed in front of the upper body of an occupant seated on the seat,
A three-point seatbelt device that operates to restrain one shoulder of the occupant seated on the seat in the vehicle width direction and restrain the upper body to the seating position .
Have,
The front airbag
Deployed to receive the upper body that had moved before the seating position of the seat,
The deployed front airbag
A shoulder receiving recess in which the shoulder can enter is formed at a portion where the shoulder of the upper body, which has moved to the front of the seating position, comes into contact with the shoulder.
The shoulder recess is located on the other side in the vehicle width direction and in front of the other shoulder of the occupant.
An inclined surface is formed from the shoulder receiving recess toward one side in the vehicle width direction so that one side is behind the other side.
Vehicle occupant protection device. The seat on which the occupant sits in the vehicle and
An airbag device having a front airbag deployed in front of the upper body of an occupant seated on the seat,
Have,
The front airbag
Deployed to receive the upper body that had moved before the seating position of the seat,
In the unfolded state, a shoulder receiving recess is formed in which the shoulder can enter at the portion where the shoulder of the upper body that has moved to the front of the seating position comes into contact.
The portion where the shoulder receiving recess is formed is developed so as to be harder than the other portions to support the shoulder of the upper body that has moved to the front of the seating position.
Vehicles of the occupant protection device. The seat on which the occupant sits in the vehicle and
An airbag device having a front airbag deployed in front of the upper body of an occupant seated on the seat,
A control unit that controls the operation of the airbag device according to the traveling state of the vehicle, and
Have,
The front airbag
Deployed to receive the upper body that had moved before the seating position of the seat,
In the unfolded state, a shoulder receiving recess is formed in which the shoulder can enter at the portion where the shoulder of the upper body that has moved to the front of the seating position comes into contact.
The control unit
When there is a possibility of a collision during automatic driving control including driving assistance for the vehicle or a collision during sudden deceleration, the front airbag is deployed so as to form the shoulder receiving recess.
In other cases, the front airbag is deployed so as not to form the shoulder recess, and the upper body in the seating position is totally supported.
Vehicles of the occupant protection device.

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