KR20240113106A - Side airbag apparatus for vihicle - Google Patents

Abstract

It relates to a side airbag device for a car, a first airbag cushion built into the seat cushion provided on the seat, and inflated and deployed to correspond to the side of the occupant's pelvic region when a car crash occurs, a car crash A first inflator that generates gas according to an impact detection signal when generated and supplies it to the first airbag cushion, is built into a car body structural member disposed on the side of the occupant, and expands and deploys to correspond to the side of the occupant's upper body when a car collision occurs. 2. A configuration including an airbag cushion and a second inflator that generates gas based on an impact detection signal in the event of a car collision and supplies it to the second airbag cushion is provided to inflate the occupant from the pelvis area to the head regardless of the occupant's direction and posture. The occupants can be safely protected by restraining the entire side of the upper body, including all parts.

Description

Side airbag device of automobile {SIDE AIRBAG APPARATUS FOR VIHICLE}

The present invention relates to a side airbag device for a vehicle, and more specifically, to a side airbag device for a vehicle that protects occupants by preventing collision between the occupants and the side walls and doors of the vehicle body in the event of a collision.

In general, an automobile airbag device is a safety device that protects occupants by rapidly inflating the airbag by injecting gas into the airbag according to a signal from an impact detection sensor during a car collision.

These airbag devices are installed on steering wheels, dashboards, seats, and side walls of automobiles, and inflate toward the front or sides of the occupants when the vehicle crashes to protect the occupants.

In other words, the car includes frontal airbags that deploy in front of the driver and passenger seats, curtain airbags and side airbags that deploy in the direction in which the side collision occurred (hereinafter referred to as the 'collision side') to protect passengers, and knee airbags that protect the passengers' knees. Airbags, etc. may be provided.

Side airbags include a so-called near side airbag that inflates and deploys between the passenger and vehicle body components such as doors and protects the occupants from vehicle body components that protrude inward due to the impact of a side collision; There is a far side airbag or center side airbag that restricts the movement of occupants moving inside the vehicle.

Meanwhile, self-driving cars that move on their own without a driver driving the vehicle are being developed recently.

The self-driving car uses advanced sensors that can recognize surrounding objects and high-performance graphics processing units to detect each device installed in the vehicle and the situation around the vehicle, and controls the operation of each device provided in the vehicle according to the detection results. and drive.

As self-driving cars configured in this way do not require a driver to drive, the entire seat, including the driver's seat, can freely swivel left and right, and the angle of the backrest can be adjusted by rotating the backrest backwards through a tilting operation. It can be adjusted to a horizontal state. So, passengers can adjust the angle of the backrest in various ways and rotate the seat to face the passengers in the back seat and have a meeting.

Accordingly, it is impossible to apply a general airbag device designed based on the posture of the passenger sitting on the seat facing forward to an autonomous vehicle.

In other words, the side airbag device according to the prior art was designed based on the posture of the occupant sitting on the seat.

Therefore, in the event of a side collision of a car with the occupant tilting the backrest backwards, the occupant's pelvis moves from the seat to the front of the vehicle, causing the occupant's pelvis to move forward more than the side airbag according to the prior art. It protrudes.

Because of this, the side airbag according to the prior art had the problem of not protecting the pelvic area of the occupant.

In addition, when the occupant rotates the backrest rearward and assumes a lying position, the occupant's head is located lower than the curtain airbag that expands and deploys downward from the roof side rail of the vehicle body, and the curtain airbag according to the prior art is used to protect the occupant. There was a problem with not protecting the head area.

Therefore, there is a need for side airbag technology that can safely protect occupants in the event of a car collision, regardless of the occupant's direction and posture.

Republic of Korea Patent Registration No. 10-1866083 (announced on June 11, 2018) Republic of Korea Patent Registration No. 10-1708213 (announced on February 20, 2017)

The purpose of the present invention is to solve the problems described above and to provide a side airbag device for an automobile that can safely protect the occupants by inflating and deploying on the occupant's side during a side collision of the vehicle.

Another object of the present invention is to provide a side airbag device for a vehicle that can safely protect the occupants of an autonomous vehicle by restraining the entire upper body side of the occupant from the pelvis area to the head area, regardless of the occupant's direction and posture.

In order to achieve the above-mentioned object, the side airbag device of a vehicle according to the present invention is a first airbag cushion that is built into a seat cushion provided in the seat and inflates and deploys to correspond to the side of the occupant's pelvic region when a collision occurs in the vehicle and a vehicle. In the event of a collision, a first inflator generates gas based on an impact detection signal and supplies it to the first airbag cushion, wherein the first airbag cushion expands upward from one end of the seat cushion in contact with the vehicle body to inflate the occupant's pelvis. It is characterized by expanding and unfolding to correspond to the side of the area.

And in order to achieve the above-described object, the side airbag device of the automobile according to the present invention is built into a car body structural member disposed on the side of the occupant, and a second airbag device is inflated and deployed to correspond to the side of the upper body of the occupant when a collision occurs. It includes an airbag cushion and a second inflator that generates gas based on an impact detection signal when a collision occurs between a car and supplies it to the second airbag cushion, wherein the second airbag cushion is linked with the curtain airbag in the normal seating mode of the occupant to protect the occupant. It protects the side of the upper body and is characterized by expanding and deploying to entirely correspond to the side of the occupant's upper body when the occupant is in recline mode.

In addition, in order to achieve the above-described object, the side airbag device of the automobile according to the present invention is built into the seat cushion provided in the seat, and is a first airbag cushion that is inflated and deployed to correspond to the side of the occupant's pelvic region when a collision occurs in the automobile. , a first inflator that generates gas based on an impact detection signal when a car crash occurs and supplies it to the first airbag cushion, is built into a car body structural member disposed on the side of the passenger, and is designed to correspond to the side of the upper body of the passenger when a car crash occurs. It is characterized by comprising a second airbag cushion that is inflated and deployed, and a second inflator that generates gas in response to an impact detection signal when a car crashes and supplies it to the second airbag cushion.

As described above, according to the side airbag device for a vehicle according to the present invention, the effect of safely protecting the occupant by restraining the entire side of the upper body from the pelvis area to the head area is obtained regardless of the occupant's direction and posture. .

That is, according to the present invention, when a collision occurs in the normal seating mode of the occupant, the first and second airbag cushions are inflated and deployed between the occupant and the vehicle body members from the pelvic area to the side of the shoulder area in conjunction with the curtain airbag cushion to inflate the occupant. The effect of being able to protect from shock is obtained.

According to the present invention, when a collision occurs in the occupant's recline mode, the first and second airbag cushions are inflated and deployed from the pelvis area to the side of the head area of the occupant between the occupant and the vehicle body member to protect the occupant from impact. The effect is achieved.

Accordingly, according to the present invention, the effect of safely protecting the occupant is obtained regardless of the state in which the occupant is rotated in the front-back and left-right directions.

1 is a perspective view of a side airbag device for an automobile and a seat to which it is applied according to a first embodiment of the present invention;
Figure 2 is a side view showing the airbag cushion in the deployed state of the side airbag device of the automobile shown in Figure 1;
Figures 3 and 4 are front views showing the first airbag cushion in a deployed state, respectively;
Figure 5 is a side view showing the deployed state of the second airbag cushion applied to the side airbag device of an automobile according to the second embodiment of the present invention;
Figure 6 is a diagram illustrating a door and armrest on which the side airbag device of the car shown in Figure 5 is installed;
Figures 7 and 8 are diagrams illustrating the opening operation of the armrest when the second airbag cushion is deployed, respectively;
Figure 9 is a side view showing the first and second airbag cushions of the side airbag device according to the third embodiment of the present invention in an inflated and deployed state.

Hereinafter, a side airbag device for an automobile according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Below, the configuration of the side airbag device installed in the driver's seat of a typical vehicle will be described. The direction toward the front of the car centered on the driver's seat is referred to as 'front (F)', and the direction toward the rear of the car is referred to as 'rear (B)'. It is said. In addition, terms indicating directions such as 'left (L)', 'right (R)', 'upward (U)' and 'downward (D)' indicate respective directions based on the front and rear. It is defined as doing.

Therefore, the front and rear (F, B) directions of the car can be expressed in the horizontal direction, and the up and down (U, D) directions of the car can be expressed in the vertical direction.

In the following, the configuration of a near side airbag device that expands and deploys between a passenger and a vehicle body member such as a door and protects the occupant from a vehicle body member that protrudes inward due to the impact of a side collision will be described.

Of course, the present invention may be modified to be applicable to a far side airbag or center side airbag that restricts the movement of occupants moving inside the vehicle due to the reaction of a side collision.

[First Embodiment]

Figure 1 is a perspective view of a side airbag device for a car and a seat to which it is applied according to a first embodiment of the present invention, and Figure 2 is a side view showing the airbag cushion in the deployed state of the side airbag device for a car shown in Figure 1. And Figures 3 and 4 are front views showing the first airbag cushion in a deployed state, respectively.

As shown in FIG. 1, the automobile side airbag device 10 according to the first embodiment of the present invention is built into the cushion 12 (hereinafter referred to as 'seat cushion') provided on the seat 11, and is installed in the automobile. A first airbag cushion (20) that inflates and deploys to correspond to the side of the occupant's pelvis area when a collision occurs, and a first inflator (30) that generates gas based on an impact detection signal and supplies it to the first airbag cushion (20) when a collision occurs. ) includes.

In this embodiment, the case where the seat 11 is the driver's seat of a car will be described. Of course, it should be noted that the present invention can be equally applied not only to the driver's seat, but also to the passenger seat and rear row seats, that is, the second or third row seats, etc.

In this embodiment, there is a normal seating mode in which the passenger sits normally on the driver's seat, and a reclined mode in which the passenger takes a lying position by tilting the backrest 13 of the seat 11 backwards. ), it is explained that the first airbag cushion 20 is inflated and deployed on the side of the occupant's pelvic region.

The first airbag cushion 20 is expanded and deployed upward from one end of the seat cushion 12 of the seat 11, that is, the left end in contact with the vehicle from the driver's seat, and is expanded and deployed to correspond to the side of the occupant's pelvic area.

In this way, the first airbag cushion 20 expands and deploys between the occupants and vehicle body components such as doors, and safely protects the occupants from vehicle body components protruding inside the vehicle due to the impact of a car collision accident, especially a side collision. It has a protective function.

For this purpose, the first airbag cushion 20 is formed to be inflated and deployed into a hexahedral shape with an approximately square cross-section or an approximately spherical shape with a circular or oval cross-section, and is inflated and deployed upward and forward from the side of the occupant. It can be.

For example, the first airbag cushion 20 is formed by cutting the first cut line 14 formed at the left end of the seat cushion 12 when viewed from FIGS. 2 to 4 on the passenger's near side, and cutting the seat cushion 12. ), and may be expanded and deployed upward and forward, upward and backward, or upward and forward and backward toward the side of the occupant's pelvic area.

When the first airbag cushion 20 is inflated and deployed, the inner panel in contact with the occupant and the edge of the outer panel provided on the opposite side may be joined to form a bag shape, such as by sewing. Additionally, the airbag cushion 20 may be divided into a plurality of chambers by one or more chamber walls, which are non-inflated areas.

Meanwhile, in this embodiment, the first airbag cushion 10 has been described as being expanded and deployed in a shape corresponding to the side of the occupant's pelvis area, but the present invention is not necessarily limited thereto, and the shape of the first airbag cushion 20 can be changed in various ways.

For example, the front-to-back length and vertical height of the first airbag cushion 20 may be formed to correspond to a length and height from the upper thigh to the lumbar region centered on the occupant's pelvic region.

Additionally, the front-to-back length and vertical height of the first airbag cushion 20 may be formed to correspond to the entire thigh, that is, from the upper knee to the chest area, centered around the pelvis area of the occupant.

In addition, the front-to-back length and vertical height of the first airbag cushion 20 may be formed to correspond to the length and height from the shin area to the shoulder area centered on the occupant's pelvis area.

Additionally, the first airbag cushion 20 may be composed of one chamber, or may be formed to have a plurality of chambers by applying one or more chamber walls.

Meanwhile, the side airbag device 10 according to this embodiment is connected to the first inflator 30 through an introduction portion provided on one side of the first airbag cushion 20, and is rolled or folded in various ways, as shown in FIG. 3 And as shown in FIG. 4, it is accommodated inside the first housing 40 to form an airbag module.

Here, the first housing 40 is built into one side of the seat cushion 12.

In addition, cut lines may be formed in the first housing 40 and the seat cushion 12 so that the first airbag cushion 20 can be expanded and deployed to the outside.

For example, a first cut line 14 may be formed on the upper surface or side of the bolster 15 provided at one end, that is, the left end, of the seat cushion 12, extending long along the front and rear direction of the vehicle. there is.

Therefore, the first airbag cushion 20 can be expanded and deployed upwards of the seat cushion 12 through the first cut line formed in the left bolster 14 of the seat cushion 12.

Alternatively, as shown in FIG. 4, the first airbag cushion 20 is inflated through the space between the side panel 16, also called garnish, installed on the side of the seat cushion 12 and the seat cushion 12. can unfold.

For this purpose, a first cut line 14 is formed at the upper part of the side panel 16 so that the first airbag cushion 20 can be withdrawn, and the upper part of the side panel 16 is formed so that the first airbag cushion 20 is upwardly It can be opened by rotating toward the vehicle body side, that is, toward the left side of the seat cushion 12, so that it can be pulled out.

Accordingly, the first airbag cushion 10 expands and deploys between the occupant and the vehicle body component when a car crash occurs in the normal sitting mode and the recline mode, thereby safely protecting the occupant's pelvis area.

As such, the present invention can protect the occupants safely by inflating and deploying the first airbag cushion between the occupant and the vehicle body member on the side of the seat cushion when a car crash occurs, thereby restraining the occupant's pelvis area.

[Second Embodiment]

Figure 5 is a side view showing the deployed state of the second airbag cushion applied to the side airbag device of the automobile according to the second embodiment of the present invention, and Figure 6 is a door and arm on which the side airbag device of the automobile shown in Figure 5 is installed. This is a drawing illustrating a rest. And Figures 7 and 8 are diagrams illustrating the opening operation of the armrest when the second airbag cushion is deployed, respectively.

As shown in FIG. 5, the automobile side airbag device 10 according to the second embodiment of the present invention includes a vehicle body structural member disposed on the side of the occupant, for example, a door 17 or an arm installed on the door 17. The second airbag cushion 50 is built into the rest 18 (hereinafter referred to as 'armrest') and inflates and deploys to correspond to the side of the occupant's upper body when a car crash occurs, and gas is released by an impact detection signal when a car crashes. It includes a second inflator 31 that generates air and supplies it to the second airbag cushion 50.

In this embodiment, the second airbag cushion 50 covers the upper body of a passenger in the driver's seat of a car. Of course, it should be noted that the present invention can be applied to protect not only the driver's seat, but also the side surfaces of passengers in the passenger seat and rear row seats, that is, the second or third row seats.

In this embodiment, it is explained that the second airbag cushion 50 is inflated and deployed on the side of the occupant's upper body in the above-mentioned normal seating mode and recline mode.

The second airbag cushion 50 may be expanded and deployed between the vehicle body structural member corresponding to the position where the occupant's upper body is placed in the recline mode, that is, the door 17 or the armrest 18 and the occupant's upper body.

For this purpose, the second airbag cushion 50 may be installed in the second row door 17 on the driver's seat side with respect to the driver's seat occupants. In addition, the second airbag cushion 50 can also be installed on the driver's seat side door 17 in response to the case where the passenger is seated facing rearward.

That is, the second airbag cushions 50 may be provided as a pair and installed in the first and second rows, respectively. Of course, in the case of a vehicle with three or more rows, they can be installed on the doors 17 of each row, respectively, to correspond to each row.

Each second airbag cushion 50 is formed to be inflated and deployed into a hexahedral shape with an approximately square cross-section or an approximately spherical shape with a circular or oval cross-section, and can be inflated and deployed upward and forward from the side of the occupant. there is.

For example, the second airbag cushion 50 is cut into the door 17 by cutting the second cut line 19 formed on each door 17 or armrest 18 when viewed from FIG. 6 on the passenger's near side. Alternatively, it may be drawn out of the armrest 18 and expanded and deployed upward and forward, upward and backward, or upward and forward and backward toward the side of the occupant's upper body.

When the second airbag cushion 500 is inflated and deployed, the inner panel in contact with the occupant and the edge of the outer panel provided on the opposite side may be joined to form a bag shape, such as by sewing. Additionally, the airbag cushion 50 may be divided into a plurality of chambers by one or more chamber walls, which are non-inflated areas.

Meanwhile, in this embodiment, the second airbag cushion 50 has been described as being expanded and deployed in a shape corresponding to the side of the occupant's upper body, but the present invention is not necessarily limited thereto, and the shape of the second airbag cushion 50 is It can be changed in various ways.

For example, the front-to-back length and vertical height of the second airbag cushion 50 may be formed to correspond to the length and height from the head to the chest area centered on the passenger's shoulder area.

Additionally, the front-to-back length and vertical height of the second airbag cushion 50 may be formed to correspond to the entire side of the upper body from the head to the lumbar region, centered on the passenger's shoulder region.

Additionally, the second airbag cushion 50 may be composed of one chamber, or may be formed to have a plurality of chambers by applying one or more chamber walls.

For example, in the second airbag cushion 50, a chamber wall is formed at the part where the passenger's shoulder area contacts, so that the second airbag cushion 50 has two chambers corresponding to the sides of the occupant's head and chest area. It can be formed to have.

Meanwhile, the side airbag device 10 according to this embodiment is connected to the second inflator 31 through an introduction portion provided on one side of the second airbag cushion 50, and is rolled or folded in various ways, as shown in FIG. 6 As shown, it is accommodated inside the second housing 41 to form an airbag module.

Here, the second housing 41 is built into the door 17 or the armrest 18.

Additionally, a cut line may be formed in the second housing 41, the door 17, or the armrest 18 to allow the second airbag cushion 50 to expand and deploy outward.

For example, as shown in FIG. 6, on one side of the door 17 or the upper surface or side of the armrest 18, a second cut line 19 through which the second airbag cushion 50 is drawn outward is formed front and rear. It can be formed to extend long along the direction.

Therefore, the second airbag cushion 50 can be expanded and deployed by cutting the second cut line 19 and being drawn out of the door 17 or armrest 18.

For this purpose, the portion where the second cut line 19 is formed on the door 17 or armrest 18 is deformed using elasticity during the cut process so that the second airbag cushion 50 can be smoothly withdrawn. You can.

Alternatively, a pull-out door 191 that opens centered on one end may be installed in the portion of the door 17 or the armrest 18 where the second cut line 19 is formed.

That is, as shown in FIG. 7 , the extraction door 191 can rotate upward to the outside of the vehicle around the outer end of the upper surface of the armrest 18 to withdraw the second airbag cushion 50.

And, as shown in FIG. 8, the pull-out door 191 can rotate downward inside the vehicle around the lower inner surface of the armrest 18 to pull out the second airbag cushion 50.

Accordingly, the second airbag cushion 50 can expand and deploy between the occupant and the vehicle body member when a car crash occurs in the normal seating mode and recline mode, thereby safely protecting the occupant's upper body.

As such, the present invention can protect the occupants safely by inflating and deploying the second airbag cushion in a car body component disposed on the side of the occupant, that is, the door or armrest, in the event of a car collision, thereby restraining the upper body of the occupant.

Meanwhile, in the first and second embodiments above, it was explained that the first airbag cushion and the second airbag cushion are applied separately to the side airbag device, but the present invention applies the first and second airbag cushions simultaneously to protect the occupants. It can protect the pelvic area and the entire upper body.

In other words, the present invention inflates and deploys the first airbag cushion on the side of the occupant's pelvis area in the recline mode, and inflates and deploys the second airbag cushion on the side of the occupant's upper body, that is, from the head to the chest area, so that in the event of a car collision, By blocking impacts from being applied to the occupants, the occupants can be safely protected.

Of course, the present invention can protect the occupants in conjunction with the curtain airbag cushion in normal seating mode.

That is, the curtain airbag cushion may be inflated and deployed from the occupant's head to the side of the cervical spine area, and the first and second airbag cushions may be inflated and deployed to the side of the occupant's pelvic area, chest, and shoulder area, respectively.

[Third Embodiment]

Figure 9 is a side view showing the first and second airbag cushions of the side airbag device according to the third embodiment of the present invention in an inflated and deployed state.

As shown in FIG. 9, the automobile side airbag device 10 according to the third embodiment of the present invention applies the first and second airbag cushions 20 and 50 described in the first and second embodiments simultaneously. do.

Therefore, when a car crash occurs in the occupant's recline mode, the first airbag cushion 20 is inflated and deployed on the side of the occupant's pelvis area, and the second airbag cushion 50 is inflated and deployed entirely on the side of the occupant's upper body, thereby expanding the occupant's chest. It can protect the head area from the area.

Through the process described above, the present invention provides the first and second airbag cushions on the sides of the occupant's pelvic area and shoulder area in conjunction with the curtain airbag cushion in conjunction with the curtain airbag cushion between the occupant and the vehicle body member when a collision occurs in the normal seating mode of the occupant. It can be inflated and deployed to protect the occupants from impact.

In addition, the present invention can protect the occupant from impact by inflating and deploying the first and second airbag cushions between the occupant and the vehicle body members from the pelvis area to the side of the head area when a collision occurs in the occupant's recline mode.

Accordingly, the present invention can safely protect the occupant regardless of whether the occupant is rotated forward and backward and left and right.

Although the invention made by the present inventor has been described in detail according to the above-mentioned embodiments, the present invention is not limited to the above-described embodiments and, of course, can be changed in various ways without departing from the gist of the invention.

The present invention is applied to automobile side airbag device technology that can safely protect the occupants by restraining the entire upper body side of the occupants from the pelvis area to the head area, regardless of the occupant's direction and posture.

10: Side airbag device of car
11: Seat 12: Seat cushion
13: Backrest 14: First incision line
15: Bolster 16: Garnish
17: Door 18: Armrest
19: second cut line 191: draw-out door
20: First airbag cushion
30, 31: 1st, 2nd inflator
40, 41: first and second housings
50: Second airbag cushion
100: Curtain airbag

Claims (10)

A first airbag cushion built into the seat cushion provided on the seat and inflated and deployed to correspond to the side of the occupant's pelvis area when a car crash occurs, and
It includes a first inflator that generates gas based on an impact detection signal when a car crash occurs and supplies it to the first airbag cushion,
The first airbag cushion is inflated and deployed upward from one end of the seat cushion in contact with the vehicle body to correspond to the side of the occupant's pelvis area. A second airbag cushion built into a vehicle body member disposed on the side of the passenger and inflated and deployed to correspond to the side of the upper body of the passenger when a car crash occurs, and
It includes a second inflator that generates gas in response to an impact detection signal when a car crash occurs and supplies it to the second airbag cushion,
The second airbag cushion protects the side of the occupant's upper body in conjunction with the curtain airbag when the occupant is in a normal seating mode, and is inflated and deployed to entirely correspond to the side of the occupant's upper body when the occupant is in a recline mode. Device. A first airbag cushion built into the seat cushion provided on the seat and inflated and deployed to correspond to the side of the occupant's pelvis area when a car crash occurs,
A first inflator that generates gas based on an impact detection signal when a car crashes and supplies it to the first airbag cushion,
A second airbag cushion built into a vehicle body member disposed on the side of the passenger and inflated and deployed to correspond to the side of the upper body of the passenger when a car crash occurs, and
A side airbag device for a car, comprising a second inflator that generates gas based on an impact detection signal when a car crash occurs and supplies it to the second airbag cushion. According to paragraph 3,
The first airbag cushion is expanded and deployed upward from one end of the seat cushion in contact with the vehicle body to correspond to the side of the occupant's pelvis area,
The second airbag cushion protects the side of the occupant's upper body in conjunction with the curtain airbag when the occupant is in a normal seating mode, and is inflated and deployed to entirely correspond to the side of the occupant's upper body when the occupant is in a recline mode. Device. According to any one of paragraphs 1, 3, and 4,
Further comprising a first housing in which the first airbag cushion and the first inflator are accommodated,
A side airbag device for a vehicle, wherein the first housing and the seat cushion are each formed with a first cut line that is cut when the first airbag cushion is inflated and deployed. According to clause 5,
The first housing is accommodated inside a bolster provided at one end of the seat cushion,
The side airbag device for a vehicle, wherein the first cut line is formed on the upper surface or side of the bolster and extends along the front and rear direction of the vehicle. According to clause 5,
The first housing is accommodated between the seat cushion and a side panel installed on a side of the seat cushion,
The side airbag device for a vehicle, wherein the first cut line is formed at the top of the side panel and extends long along the front and rear direction of the vehicle. According to any one of claims 2 to 4,
Further comprising a second housing in which the second airbag cushion and the second inflator are accommodated,
A side airbag device for an automobile, wherein a second cutting line is formed on the second housing and the vehicle body member in which the second housing is built, which is cut when the second airbag cushion is inflated and deployed. According to clause 8,
The second housing is built into a door disposed on the side of the occupant or an armrest provided on the door,
The second cut line is a side airbag device for a vehicle, characterized in that the second cut line is formed on one side of the door or the upper surface or side of the armrest and extends long along the front and rear direction of the vehicle. According to clause 9,
A side airbag device for a vehicle, wherein a pull-out door that opens is installed at a portion of the door or armrest where the second cut line is formed to pull the second airbag cushion out.

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