JP5767992B2 - Airbag device - Google Patents

Description

  The present invention relates to an airbag apparatus that is provided in a saddle-ride type vehicle such as a motorcycle, for example, and has a bag portion that is deployed and inflated in front of a passenger at the time of a collision or the like.

In a saddle-ride type vehicle such as a motorcycle on which a passenger such as a driver rides across the vehicle body, it is proposed to provide an airbag device that has a bag portion that expands and inflates in front of the occupant and restrains the occupant in the event of a collision. Has been.
For example, in Patent Document 1, a bag is housed in a holding box provided in front of an occupant seat, and air that restrains the upper body of the occupant by expanding and inflating the bag upward from the holding box in the event of a vehicle collision or the like. A bag device is described.
In Patent Document 1, a front opening cover having a hinge on the vehicle rear side is provided on the upper portion of the holding box, and the bag portion is inflated while pushing the cover open.
The cover plays a role of regulating the deployment direction so that the bag portion is deployed and inflated in front of the occupant.

The cover is formed of, for example, a resin material, and the hinge side and the opposite side are fixed to the holding box, and the tear line provided at the end opposite to the hinge side is broken when the bag part is expanded and inflated. Released by.
The tear line is a fragile portion in which a part of the cover is formed as a thin wall in a groove shape.
For example, the swing angle of the cover is regulated by a belt-shaped webbing that connects the holding container and the side surface of the cover.
Since this webbing is subjected to a large tension when the bag part is deployed and inflated, when the cover is made of resin, an insert such as a metal plate is inserted into the side part to which the webbing is connected in order to ensure strength. Is inserted.

JP2011-962A

However, as described above, when an insert such as a metal plate is inserted into the side portion of the airbag cover, the structure of the airbag cover becomes complicated, and the weight and cost increase.
In view of the above-described problems, an object of the present invention is to provide an airbag device capable of appropriately regulating the deployment direction of a bag by regulating the swing amount of the airbag cover with a simple configuration.

In order to solve the above-described problem, the airbag device of the present invention is formed in a bag shape by a base fabric panel, and a bag portion that is deployed and inflated on the front side of the driver by being supplied with a deployment gas; The inflator that generates the developing gas, the bag portion when not in use, and a holding container provided with an opening above the opening, and the opening of the holding container when substantially not used are substantially closed. An airbag cover whose front part rises to open the opening when the bag part is deployed and inflated, and a side part of the airbag cover and the holding container are connected to each other, and the airbag when the bag part is deployed and inflated. An airbag device provided in front of a seat of a saddle-ride type vehicle provided with a belt-shaped member that regulates an opening amount of the cover, the end of the belt-shaped member on the airbag cover side A metal fitting that is hooked, and an inner diameter side flange portion that projects to the inner diameter side at one end of the cylindrical body and an outer diameter side flange portion that projects to the outer diameter side at the other end The fixing member is inserted into the first washer, the side portion of the airbag cover, and the opening formed in the metal fitting, and the inner diameter side flange portion is opposite to the insertion direction of the fixing member. The metal fitting is attached to the airbag cover by engaging the rivet inserted from the side and fixing the second washer to the end of the fixing member on the inner flange side.
According to this, in the case where an insert such as a metal plate is not provided on the side portion of the airbag cover by holding the first washer that contacts the side portion of the airbag cover at the outer diameter side flange portion of the fixing member. Even if it exists, the input to a airbag cover from a fixing member can be disperse | distributed, and the failure | damage of the airbag cover by stress concentration can be prevented.
For this reason, the belt-shaped member and the side portion of the airbag cover can be connected with a simple configuration, and the swinging amount of the airbag cover can be regulated to appropriately regulate the deployment direction of the bag portion.

In the present invention, the metal fitting is formed by bending a metal plate into a U-shape, and the bent portion is disposed at a place where the bent portion is in pressure contact with the belt-like member when tension is applied to the belt-like member. It can be configured.
According to this, when a tension | tensile_strength is loaded on a strip | belt-shaped member, it is prevented that the sharp edge part of a metal fitting is pressed against a strip | belt-shaped member, and damage to a strip | belt-shaped member can be prevented and reliability can be improved.

Moreover, in this invention, the edge part by the side of the said holding | maintenance container of the said strip | belt-shaped member is connected to the front part or lower surface part of the said holding | maintenance container, and the connection of the said front part or the said lower surface part, and the side part of the said holding | maintenance container It can be set as the structure which formed the curved surface part which contact | abuts the said strip | belt-shaped member at the time of the tension | tensile_strength provision to the said strip | belt-shaped member.
According to this, when tension is applied to the belt-shaped member, the belt-shaped member is prevented from being pressed against a sharp portion at the corner portion of the holding container, and damage to the belt-shaped member can be prevented and reliability can be improved.

  As described above, according to the present invention, it is possible to provide an airbag device capable of appropriately regulating the deployment direction of the bag by regulating the swing amount of the airbag cover with a simple configuration.

1 is a schematic side view of a motorcycle including a first embodiment of an airbag device to which the present invention is applied. Fig. 2 is a schematic front view of the motorcycle shown in Fig. 1. FIG. 2 is an external perspective view of an airbag module provided in the motorcycle of FIG. 1, showing a state where a cover is closed (a state before the bag portion is deployed and inflated). FIG. 4 is a side view of the airbag module of FIG. 3 showing a state where a cover is closed. FIG. 4 is an external perspective view of the airbag module of FIG. 3, showing a state where a cover is opened (a state after the bag portion is deployed and inflated). FIG. 4 is a side view of the airbag module of FIG. 3, showing a state where a cover is opened. FIG. 4 is a partial cross-sectional perspective view of the airbag module of FIG. 3. It is an external appearance perspective view of the component part of the cover in the airbag module of FIG. It is a side view of the cover of FIG. It is a disassembled perspective view of the attachment part of the cover side metal fitting of a webbing, and the side part of a cover in the airbag module of FIG. It is a figure which shows the structure of the webbing periphery part in 2nd Embodiment of the airbag apparatus to which this invention is applied, Comprising: Fig.11 (a) is typical sectional drawing which shows the state seen from the diagonally upper side of the front side. FIG. 11 (b) is a view taken along the line bb of FIG. 11 (a).

<First Embodiment>
Hereinafter, a first embodiment of an airbag apparatus to which the present invention is applied will be described.
The airbag device according to the first embodiment is provided, for example, in a motorcycle that is a saddle-ride type vehicle, and includes a bag portion that is deployed and inflated on the front side of a passenger at the time of a collision or the like.
FIG. 1 is a schematic side view of a motorcycle including the airbag device of the first embodiment.
FIG. 2 is a schematic front view of the motorcycle shown in FIG.

  The motorcycle 1 includes a front wheel FW, a rear wheel RW, a frame 10, a front fork 20, a swing arm 30, a seat 40, a seat cowl 50, a tank 60, a handle 70, a cowling 80, and the like.

  The frame 10 is a structural member provided at the center of the vehicle body, and auxiliary equipment such as an engine, a transmission and a cooling device, and a fuel supply device (not shown) are mounted on the lower portion thereof.

The front fork 20 is a member that is rotatably attached to the front end portion of the frame 10 and supports the front wheel FW, the front brake, and the like.
The front fork 20 is a telescopic front suspension that accommodates a spring and a damper therein and expands and contracts.
A front fender 21 is provided on the front fork 20 above the front wheel FW.

The swing arm 30 protrudes rearward from the lower portion of the frame 10 and is a member that is swingably attached to the frame 10 and supports the rear wheel RW.
A spring damper unit (not shown) of the rear suspension is provided between the swing arm 30 and the frame 10.

The seat 40 is a portion where an occupant is seated by saddle riding, and is provided on the upper portion of the frame 10.
The seat cowl 50 is an exterior member disposed behind the seat 40 and above the rear wheel RW.
The tank 60 is a container that is provided in the upper part of the frame 10 on the front side of the seat 40 and stores gasoline serving as fuel.
The tank 60 is provided at a position sandwiched between the inner thighs of both limbs of the occupant.
Note that an airbag module 100 described later is provided in a part of the upper portion of the tank 60.

The handle 70 is an operation member that is formed so as to protrude from the upper part of the front fork 20 to the vehicle rear side and the vehicle width direction outer side and is gripped by the occupants' fingers.
The handle 70 is provided with a front brake lever, a clutch lever, various lighting switches, and the like, and the right grip also serves as a throttle operation unit.

The cowling (fairing) 80 is an exterior member that is formed of, for example, a resin material and covers the front portion of the vehicle body.
The cowling 80 is a full cowling that covers the upper half of the front fork 20, the front half of the frame 10, the engine, and the like.

The cowling 80 includes a headlight 81, a mirror 82, a windshield 83, and the like.
The headlight 81 is an illuminating device provided on the front portion of the cowling 80.
The mirror 82 is a rear confirmation means provided on the upper left and right sides of the cowling 80.
The windshield 83 is a transparent portion provided at the upper part of the front surface portion of the cowling 80, and is used for wind protection of the passenger.

As shown in FIG. 1, the airbag module 100 is provided on the upper portion of the tank 60. The airbag module 100 deploys and inflates the bag in front of the driver when the motorcycle 1 collides, and receives and restrains the driver's upper body.
FIG. 3 is an external perspective view of the airbag module 100 and shows a state in which the cover is closed.
FIG. 4 is a side view of the airbag module 100 and shows a state in which the cover is closed.
FIG. 5 is an external perspective view of the airbag module 100 and shows a state in which the cover is opened.
FIG. 6 is a side view of the airbag module 100 and shows a state in which the cover is opened.
FIG. 7 is a partial cross-sectional perspective view of the airbag module 100.
The airbag module 100 includes a bag 110, a retainer 120, a cover 130, a webbing 140, an inflator (not shown), and the like.
3 to 7, the bag 110 and the inflator are not shown.

The bag 110 is formed into a bag shape by sewing or bonding a base fabric panel.
The bag 110 is accommodated in the retainer 120 in a state of being folded into, for example, a roll shape or a bellows shape when not in use.
Further, when an airbag control device (not shown) detects a collision by a sensor provided on the front fork 20 or the like, for example, the bag 110 is covered with a deployment gas as shown in FIG. 130 is pushed open and expanded above the tank 60 to restrain the occupant's upper body.

The retainer 120 is formed in a box shape having an upper portion opened by combining sheet metal members obtained by pressing a steel plate, for example.
The bag 110 is fixed to the retainer 120 by a bag ring 220 of an inflator which will be described later with the air inlet 111a facing the lower surface of the retainer 120.
The retainer 120 includes a lower surface portion 121, a front surface portion 122, a rear surface portion 123, a side surface portion 124, and the like.

The lower surface portion 121 is a substantially flat plate portion that constitutes the bottom portion of the retainer 120.
As shown in FIG. 7, an opening 121 a to which an inflator is attached is formed in the lower surface portion 121.
In addition, a flange portion 121b protruding to the side of the retainer 120 is formed around the lower surface portion 121 in order to fasten the retainer 120 to the frame 10 of the vehicle body.

The front surface portion 122 has a lower portion 122a that is a substantially flat slope formed by extending obliquely upward from the front end portion of the lower surface portion 121, and an upper portion 122b extending upward from the upper end portion of the lower portion 122a.
The ends of the webbing 140 on the retainer 120 side are fixed to both ends of the lower portion 122a in the vehicle width direction.
Further, the front portion 132 of the cover 130 is fixed to the upper portion 122b.
The rear surface portion 123 is a substantially flat portion that extends upward from the rear end portion of the lower surface portion 121.
The side surface portion 124 is a substantially flat portion formed upwardly extending from the left and right end portions of the lower surface portion 121, and the front end portion and the rear end portion thereof are the front end portion 122 and the left and right end portions of the rear surface portion 123, respectively. It is joined with.
The end portion 124a on the front surface portion 122 side of the member constituting the side surface portion 124 is bent toward the lower portion 122a side of the front surface portion 122, and the end portion 124a is attached to the surface of the lower portion 122a. As a result, the corner portion surface between the side surface portion 124 and the lower portion 122a is formed in a convex curved surface shape with a predetermined R. The lower portion 122a of the front surface portion 122 is formed with a concave portion 122c for accommodating the end portion 124a so that the surface of the end portion 124a and the surface of the lower portion 122a are substantially on the same plane.
Further, as shown in FIG. 7, the side surface portion 124 is formed with a concave portion 124b for preventing interference with a fixing member 143 to be described later.

The cover 130 is a lid-like member that closes the upper portion of the retainer 120 when not in use. When the bag 110 is inflated and inflated, as shown in FIG. 1, the cover 130 rotates around a hinge disposed on the rear side of the vehicle. The bag 110 is opened to regulate the deployment direction of the bag 110.
8 and 9 are an external perspective view and a side view, respectively, of a single component of the cover 130.
FIG. 8 shows a state in which the cover 130 is viewed obliquely from the front side and obliquely from the lower side.
The cover 130 includes an upper surface portion 131, a front surface portion 132, a rear surface portion 133, a side surface portion 134, and the like that are integrally formed of, for example, a resin material.

The upper surface portion 131 is a surface portion that substantially closes the upper opening of the retainer 120 when not in use.
The upper surface portion 131 is formed in a curved surface having a shape continuous with the outer surface of the tank 60, and functions as a design surface exposed to the outside of the vehicle.

The front surface portion 132 is a substantially flat surface portion protruding downward from the front end portion of the upper surface portion 131.
The front portion 132 is fixed to the upper portion 122b of the front portion 122 of the retainer 120 using, for example, rivets.
In the vicinity of the upper end portion of the front surface portion 132, a tear line 132a is formed which extends substantially along the vehicle width direction and is formed in a groove shape smaller in thickness than the other portions.
The tear line 132a is a fragile portion that is broken by a pressing force that the upper surface portion 131 receives from the bag 110 when the bag 110 is deployed and inflated.
A long hole-like opening 132b that is long in the vehicle width direction is formed at the center of the tear line 132a. The opening 132a functions as a starting point at which the tear line 132a starts to break.
When the cover 130 is opened, a portion of the front surface portion 132 below the tear line 132a remains on the retainer 120 side, and only a portion above the tear line 132a rotates and rises together with the upper surface portion 131.

The rear surface portion 133 is a substantially flat surface portion protruding downward from the rear end portion of the upper surface portion 131.
The rear surface portion 133 is fixed to the rear surface portion 123 of the retainer 120 using, for example, rivets.
A hinge portion (not shown) that is bent when the cover 130 is opened is formed on the upper portion of the rear surface portion 133 by reducing the wall thickness into a groove shape.

The side surface portion 134 is a substantially flat surface portion protruding downward from the left and right end portions of the upper surface portion 131.
A slit 134 a is formed in the side surface portion 134.
The slit 134a extends upward from the lower end portion at the rear of the side surface portion 134, and is curved toward the rear surface portion 133 on the upper side thereof, and the upper end portion is disposed in the vicinity of the upper end portion and in the vicinity of the rear end portion of the side surface portion 134. Yes.
A gap is formed between the front end portion of the side surface portion 134 and the side end portion of the front surface portion 132.
When the cover 130 is opened, the area in front of the slit 134a of the side surface part 134 swings and rises together with the upper surface part 131, and the area behind the slit 134a remains on the retainer 120 side. A region behind the slit 134a of the side surface portion 134a is fixed to the side surface portion 124 of the retainer 120 by, for example, rivets.
An opening 134b into which the fixing member 143 is inserted is formed in a region in front of the slit 134a of the side surface portion 134.

The webbing 140 is a belt-like member that regulates the swing direction of the cover 130 and regulates the deployment direction of the bag 110 when the bag 110 is deployed and inflated.
The webbing 140 is configured by providing a retainer-side metal fitting 141 and a cover-side metal fitting 142 at both ends of a main body configured in a belt shape.
The retainer-side metal fitting 141 is fixed to the lower portion 122a of the front surface portion 122 of the retainer 120 by, for example, a rivet R.
In the retainer-side metal fitting 141, an annular portion 140a provided at the end portion of the webbing 140 is passed through an opening 141a provided at the end portion on the outer side in the vehicle width direction.

The cover-side metal fitting 142 is connected to a region in front of the slit 134 a in the side surface portion 134 of the cover 130 so as to be rotatable about an axis substantially orthogonal to the side surface portion 134.
The cover-side metal fitting 142 is configured by bending a metal plate such as a steel plate into a U shape. The outer surface of the bent portion 142a of the cover-side metal fitting 142 is formed in a convex curved shape with a predetermined R.
An opening 142 b into which the cylindrical portion of the fixing member 143 is inserted is formed in the center portion of the cover side metal fitting 142.
The cover-side metal fitting 142 is inserted inside the annular portion 140 b provided at the end of the webbing 140. In the annular portion 140b, an opening 140c into which the cylindrical portion of the fixing member 143 is inserted is formed, and the opening 140c and the opening 142b are arranged so as to overlap each other.
At this time, the bent portion 142 a of the cover-side metal fitting 142 is disposed toward the end portion of the webbing 140 so that the input from the annular portion 140 b can be received when a tension is applied to the webbing 140.

FIG. 10 is an exploded perspective view of a connection portion between the cover-side metal fitting 142 and the cover 130.
As shown in FIGS. 7 and 10, the cover-side metal fitting 142 is attached to the side surface portion 134 of the cover 130 using a fixing member 143, a rivet 144, a washer 145, and a washer 146.
The fixing member 143 has an outer diameter side flange 143a protruding to the outer diameter side at one end portion of the body portion formed in a cylindrical shape, and an inner diameter side flange 143b protruding to the inner diameter side at the other end portion. Is formed.
The fixing member 143 is inserted into the washer 145 from the inner diameter side flange 143b side, and is further inserted into the opening 134b from the inside of the side surface portion 134 of the cover 130. Further, the opening 140c of the webbing 140 and the opening 142b of the cover side metal fitting 142 are inserted. Are inserted sequentially.

The rivet 144 is a blind rivet (pop rivet) that is inserted from the inner diameter side flange 143b side of the fixing member 143 and engages with the inner diameter side flange 143b.
Further, the rivet 144 fixes the washer 146 to the fixing member 143 by engaging the head of the rivet 144 with the opening at the center of the washer 146.
As shown in FIG. 7, the washer 145 is disposed between a surface portion on the inner diameter side flange 143 b side of the outer diameter side flange 143 a of the fixing member 143 and a surface portion on the inner side of the side surface portion 134 of the cover 130.
As shown in FIG. 7, the washer 146 is disposed between the outer side surface portion of the annular portion 140 b of the webbing 140 and the head portion of the rivet 144.

The inflator generates a deployment gas that deploys and inflates the bag unit 100 when an unillustrated airbag control unit detects a vehicle collision.
For example, the airbag control unit determines the collision of the vehicle when the acceleration sensor provided in the front fork 20 detects a deceleration equal to or higher than a preset threshold value.

According to the first embodiment described above, the following effects can be obtained.
(1) Even when a metal plate or other insert is not provided on the side portion of the cover by holding the washer 145 that contacts the side surface portion 134 of the cover 130 with the outer diameter side flange portion 143a of the fixing member 143, The input to the cover 130 from the fixing member 143 can be dispersed to prevent the cover 130 from being damaged due to stress concentration.
For this reason, the webbing 140 and the side part 134 of the cover 130 can be connected with a simple configuration, and the amount of swinging of the cover 130 can be regulated to appropriately regulate the deployment direction of the bag 110.
(2) The cover-side metal fitting 142 is formed by bending a metal plate into a U-shape, and the bent portion is disposed on the end side that is in pressure contact with the webbing 140 when tension is applied to the webbing 140. This prevents the sharp edge portion of the cover-side metal fitting 142 from being pressed against the webbing 140, thereby preventing the webbing 140 from being damaged and improving the reliability.
(3) The end portion 124a is moved from the side surface portion 124 to the front surface portion 122 side of the retainer 120, and the corner portion is formed into a curved surface. Thus, when tension is applied to the webbing 140, the retainer 120 is applied to the webbing 140. It is possible to prevent the sharp portion from being pressed at the corner portion of this, and to prevent damage to the webbing 140 and improve reliability.

Second Embodiment
Next, a second embodiment of the airbag device to which the present invention is applied will be described.
Note that portions that are substantially common to the above-described first embodiment are denoted by the same reference numerals, description thereof is omitted, and differences are mainly described.
FIG. 11 is a diagram illustrating a configuration of a webbing peripheral portion in the airbag apparatus according to the second embodiment.
Fig.11 (a) is typical sectional drawing which shows the state seen from the diagonally upper side of the front side, FIG.11 (b) is a bb part arrow directional view of Fig.11 (a).

In the second embodiment, a part of the intermediate part of the webbing 140 before deployment is overlapped with the other part of the intermediate part of the webbing 140, and these are sewn with tear seams S.
As shown in FIG. 11, the tear seams S are arranged so as to be distributed over a predetermined range in the longitudinal direction of the webbing 140 (the left-right direction in FIGS. 11A and 11B), for example.
As shown in FIG. 11B, the stitch extending direction when the webbing 140 is viewed from the front is extended in the width direction of the webbing 140 while being bent in a zigzag shape, and folded at the side end portion of the webbing 140. Has been placed. As an example, in the example shown in FIG. 11, the tear seam S is arranged so as to reciprocate the webbing 140 in the width direction. However, the arrangement of the tear seam S is not limited to this and should be changed as appropriate. Is possible.
The tear seam S absorbs energy while sequentially breaking when the airbag device is activated (when the bag portion 100 is deployed and inflated).

  According to the second embodiment described above, the tear seam S of the webbing 140 breaks and absorbs energy when the bag portion 100 is expanded and in addition to the effect substantially similar to the effect of the first embodiment described above. By doing so, the maximum load input to the cover 130 can be reduced.

The technical scope of the present invention is not limited by the above-described embodiments, and can be changed as appropriate. Examples of such changes include the following, which are also within the technical scope of the present invention.
(1) Although the airbag device of the above-described embodiment is provided in a motorcycle as an example, the present invention is not limited to this, and may be applied to other types of saddle-ride type vehicles such as ATVs. Is possible.
(2) The shape, structure, material, manufacturing method, arrangement, and the like of each part constituting the airbag device are not limited to the above-described embodiment, and can be changed as appropriate.
(3) In the above-described embodiment, the bag is expanded and inflated after the vehicle collision is detected. However, the present invention is not limited to this, and the bag is expanded and inflated in response to detection of a vehicle crash sign (pre-crash). May be.
(4) In the above-described embodiment, the belt-like member is webbing as an example, but is not limited thereto, and may be a belt-like member made of another material such as a resin sheet.

DESCRIPTION OF SYMBOLS 1 Motorcycle FW Front wheel RW Rear wheel 10 Frame 20 Front fork 21 Front fender 30 Swing arm 40 Seat 50 Seat cowl 60 Tank 70 Handle 80 Cowling 81 Headlight 82 Mirror 83 Windshield 100 Airbag module 110 Bag 120 Retainer 121 Lower surface 121a Opening 121b Flange portion 122 Front surface portion 122a Lower portion 122b Upper portion 122c Recess portion 123 Rear surface portion 124 Side surface portion 124a End portion 124b Recess portion 130 Cover 131 Upper surface portion 132 Front surface portion 132a Tear line 132b Opening 133 Rear surface portion 134 Side surface portion 134a Slit 134b Opening 140b Part 140b annular part 140c opening 141 retainer side metal fitting 141a opening 142 Cover side metal fitting 142a Bending part 142b Opening 143 Fixing member 143a Outer diameter side flange 143b Inner diameter side flange 144 Rivet 145 Washer 146 Washer S Tear seam

Claims (3)

A bag portion that is formed into a bag shape by the base fabric panel and that expands and inflates on the front side of the driver by being supplied with the gas for deployment,
An inflator for generating the developing gas;
While holding the bag portion when not in use, a holding container provided with an opening above,
An airbag cover that substantially closes the opening of the holding container when not in use and opens the opening by raising the front portion when the bag portion is deployed and inflated;
An airbag provided in front of a seat of a saddle-ride type vehicle, comprising: a belt-shaped member that connects a side portion of the airbag cover and the holding container and regulates an opening amount of the airbag cover when the bag portion is deployed and inflated. A device,
A metal fitting on which the end of the belt-like member on the airbag cover side is hooked;
A fixed member having an inner diameter side flange portion projecting toward the inner diameter side at one end portion of the cylindrical body and an outer diameter side flange portion projecting toward the outer diameter side at the other end portion; and
The rivet is inserted into the first washer, the side portion of the airbag cover, and the opening formed in the metal fitting, and inserted into the inner diameter side flange portion from the opposite side of the insertion direction of the fixing member. The metal fitting is attached to the airbag cover by fixing the second washer to the end of the fixing member on the inner flange side of the fixing member. The metal fitting is formed by bending a metal plate into a U shape, and the bent portion is disposed at a location where the bent portion is in pressure contact with the belt-like member when tension is applied to the belt-like member. The airbag device according to claim 1. An end of the belt-like member on the holding container side is connected to a front surface portion or a lower surface portion of the holding container, and a connection portion between the front surface portion or the lower surface portion and a side surface portion of the holding container is connected to the belt-shaped member. The airbag device according to claim 1 or 2, wherein a curved surface portion that comes into contact with the belt-like member when a tension is applied is formed.

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