JP5582834B2 - Airbag device - Google Patents

Description

  The present invention relates to an airbag device for a passenger on a passenger seat provided in an instrument panel portion of an automobile, for example.

  DESCRIPTION OF RELATED ART Conventionally, the airbag apparatus for passenger seat passenger | crew with which the instrument panel part of a motor vehicle is equipped is known, for example. The airbag device includes an inflator that supplies gas and an airbag that is folded into a predetermined shape. In the event of an automobile collision, etc., gas is supplied from the inflator to inflate and deploy the airbag in front of the occupant seated in the passenger seat, thereby mitigating the impact applied to the occupant.

  And the structure which aimed at the exact protection according to a passenger | crew's physique is known about the airbag of the airbag apparatus for passenger seat passengers. For example, the airbag includes left and right shoulder restraint portions for the left and right shoulder portions of the occupant, and a tether is disposed inside the airbag and an actuator for locking the tether. When a small occupant is seated, the air bag is deployed while the actuator holds the tether. Then, the airbag is pulled inward by the tether, and the distance between the left and right shoulder restraint portions is reduced. On the other hand, when a large occupant is seated, the actuator unlocks the tether and deploys the airbag. Then, the airbag is deployed without being pulled by the tether, and the distance between the left and right shoulder restraint portions is increased.

  However, in this configuration, since the tether pulls the airbag inward, in a state where the tether is locked in response to a small occupant, the capacity of the airbag is reduced and the internal pressure, that is, the reaction force is increased, In a state where the tether is released in response to an occupant, the capacity of the airbag is increased and the internal pressure, that is, the reaction force is reduced. Therefore, for example, it is not easy to set an appropriate reaction force for both a large occupant not wearing a seat belt and a small occupant wearing a seat belt. Has a rising problem.

JP 2007-230501 A (page 10, FIG. 10-12)

  As described above, in the conventional configuration, for example, in order to protect the occupant in an appropriate state depending on whether or not the seat belt is worn, the configuration of the airbag device becomes complicated, and there is a problem that the manufacturing cost increases. doing.

  This invention is made | formed in view of such a point, and it aims at providing the airbag apparatus which can expand | deploy an airbag in a suitable shape and can protect a passenger | crew.

The airbag device according to claim 1 is located between the right shoulder bag portion facing the right shoulder of the occupant, the left shoulder bag portion facing the occupant's left shoulder, and between the right shoulder bag portion and the left shoulder bag portion. An air bag body portion that has a recessed portion that is recessed with respect to the chest and that is introduced into the inside of the chest and that is deployed to face an occupant, and is fixed to the outside of the right shoulder bag portion and the left shoulder bag portion, and the right shoulder bag An airbag including a tether means capable of pulling at least one of the bag portion and the left shoulder bag section in a direction approaching the other, an inflator for supplying gas to the airbag body, and the tether means And a control means for pulling and relaxing.

  The airbag device according to claim 2 is the airbag device according to claim 1, wherein the airbag is deployed to face an occupant seated in a seat provided with a seat belt, and the control means includes The tether means is pulled in a state where the tether is not worn, and the tether means is relaxed in a state where the occupant is wearing the seat belt.

  The airbag device according to claim 3 is the airbag device according to claim 1 or 2, wherein the tether means includes a first belt connected to one of the right shoulder bag portion and the left shoulder bag portion, and a right shoulder. A second belt connected to either the bag portion or the left shoulder bag portion and provided with a through-hole portion; the base end portion is fixed to the first belt through the through-hole portion; A strap provided with a stop receiving portion, and the control means includes an actuator provided with a locking portion for releasably locking the locking receiving portion.

According to the airbag device of claim 1, when gas is introduced from the inflator into the airbag body, the right shoulder bag portion faces the occupant's right shoulder, the left shoulder bag portion faces the occupant's left shoulder, and the depression The part deploys opposite the occupant's chest to protect the occupant. When the control means pulls the tether means, the right shoulder bag portion and the left shoulder bag portion approach each other so that the recessed portion is relatively closed. Can be protected. In a state where the control means loosens the tether means, the right shoulder bag portion and the left shoulder bag portion are relatively separated from each other, and the recessed portion faces the occupant's chest so that the occupant can be softly received and protected. Since the tether means is fixed to the outside of the right shoulder bag portion and the left shoulder bag portion , the manufacturing process can be simplified and the manufacturing cost can be reduced, the change in the volume of the airbag main body is small, and the change in the internal pressure of the airbag And an appropriate reaction force can be easily set.

  According to the airbag device of the second aspect, in addition to the effect of the first aspect, for the occupant not wearing the seat belt, the right shoulder bag portion and the left shoulder bag portion are brought closer by pulling the tether means. The shape is maintained, and the right shoulder, left shoulder, and chest of the occupant thrown out of the seat with the right shoulder bag portion and the left shoulder bag portion can be reliably received and appropriately protected. On the other hand, for the occupant wearing the seat belt, the tether means is relaxed to separate the right shoulder bag portion and the left shoulder bag portion, and the concave portion is opposed to the occupant's chest to reduce the force applied to the occupant's chest, The passenger can be properly protected by the seat belt and the airbag.

  According to the airbag device of the third aspect, in addition to the effect of the first or second aspect, the locking portion of the actuator pulls the tether means by locking the locking receiving portion of one strap. The tether means can be in a loosened state by releasing the lock of the lock receiving portion of one strap by the lock portion of the actuator. One strap is sufficient, and the manufacturing cost can be reduced by simplifying the structure.

It is explanatory drawing which shows one Embodiment of the airbag apparatus of this invention, (a) is the state which pulled the tether means, (b) is the state which loosened the tether means. It is explanatory drawing of the cross section of the state which the airbag of the airbag apparatus same as the above developed. It is explanatory drawing of operation | movement of an airbag apparatus same as the above, (a) is the state which pulled the tether means, (b) is the state which loosened the tether means. It is explanatory drawing of the cross section of the state which pulled the tether means of the airbag apparatus same as the above, (a) is sectional drawing of the II equivalent position of Fig.1 (a), (b) is II-- of Fig.1 (a). It is sectional drawing of II equivalent position. It is explanatory drawing of the cross section of the state which pulled the tether means of the airbag apparatus same as the above, (a) is sectional drawing of the II equivalent position of FIG.1 (b), (b) is II-- of FIG.1 (b). It is sectional drawing of II equivalent position. It is explanatory drawing of operation | movement of an airbag apparatus same as the above, (a) is the state which pulled the tether means, (b) is the state which loosened the tether means. It is explanatory drawing which shows other embodiment of the airbag apparatus of this invention. It is explanatory drawing of a part of airbag apparatus same as the above. It is a partial explanatory view showing still another embodiment of the airbag device of the present invention.

  Hereinafter, an embodiment of an airbag device of the present invention will be described with reference to the drawings.

  1 to 6, reference numeral 1 denotes an airbag device. The airbag device 1 is located in front of passengers A and B of a passenger seat of an automobile 2 as a vehicle, that is, a passenger seat as a protected object. An airbag device 1 for a passenger in a passenger seat, which is disposed inside an instrument panel portion 4 as a position to be installed and is also called an assist airbag, is configured. Hereinafter, the front-rear direction, the both-side direction, and the up-down direction will be described based on the straight traveling direction of the automobile 2 with the airbag device 1 attached to the automobile 2, respectively. In FIG. 6, occupants A and B are indicated by dummies, the occupant A is a dummy of an occupant not wearing a seat belt, and the occupant B is a dummy of an occupant wearing a seat belt.

  The instrument panel portion 4 is formed in a curved surface or the like that slightly lowers toward the rear side, that is, the passenger seat side, and is provided on a steering member (not shown) as a mounted member disposed inside the instrument panel portion 4. The airbag device 1 is fixed by screwing or the like in a state where the front side is directed upward or is appropriately inclined from above to the rear side, that is, toward the passengers A and B. Further, a windshield that is a windshield that is inclined from the lower front side toward the upper rear side is disposed above the instrument panel portion 4.

  And this airbag apparatus 1 can also be called an airbag module, and as shown in FIG. 2 etc., the bag-shaped airbag 11 comprised with the base fabric, and the inflator which supplies gas to this airbag 11 12, a case body 14 to which the airbag 11 and the inflator 12 are attached, a retainer plate 15, an actuator 17 constituting the control means 16, a cover body 18 covering the airbag 11 before deployment, and the like. It is designed to unfold against a passenger seated in a seat with a seat belt.

  The case body 14 is formed in a substantially box shape, and the front side or the upper side toward the windshield is a rectangular projecting opening 21 that is an opening, and the inner side is an airbag storage unit that stores the folded airbag 11 22 The protrusion 21 is normally covered with the cover body 18.

  The inflator 12 includes a cylindrical main body, and the main body is sandwiched and fixed between the bottom of the case body 14 and the retainer plate 15. The igniter and the medicine are accommodated inside the main body, and the igniter burns the medicine by an electric signal transmitted from the control means transmitted through the connector connected to the bottom, and is provided at one end. The gas for expansion is rapidly supplied from the gas injection port. The inflator 12 has various shapes. For example, a single or a plurality of inflators 12 having a disc-shaped main body can be used.

  The cover body 18 is formed of resin so as to be integrated with or separate from the instrument panel portion 4, and a tear line that is thinner than other portions and easily breaks is formed in a substantially plane H shape or the like.

  As shown in FIG. 1 to FIG. 6, the airbag 11 is a combination of one or more base fabrics. For example, the airbag 11 includes three base fabrics, a front base fabric portion, an upper base fabric portion, and a lower base fabric portion. An airbag main body 31 is formed into a single bag shape by sewing. The airbag main body 31 of the airbag 11 has an instrument base 4, that is, a base end on the front end side attached to the case body 14, serving as an airbag base 33, and an inflator 12 is provided inside the airbag base 33. Gas is supplied and the airbag main body 31 is inflated and deployed. Further, the airbag main body 31 expands from the airbag base 33 toward the rear end side, which is the opposite side of the airbag base 33, and the front panel 34 on the front side where the rear end faces the passengers A and B. It has become. A right shoulder bag portion 35 that bulges opposite to the right shoulders of the occupants A and B when deployed, and a left shoulder bag portion that bulges opposite the left shoulders of the occupants A and B. 36 and a recessed portion 37 that is located between the right shoulder bag portion 35 and the left shoulder bag portion 36 and is recessed with respect to the chests of the occupants A and B.

  The recessed portion 37 is a portion where a region along the vertical direction of the front panel 34 is recessed toward the airbag base 33, and the recessed portion 37 is a three-dimensional combination of the base fabrics in advance along the deployed shape. In addition, the front panel 34 formed of one base fabric is pulled toward the airbag base 33 side by a belt made of a base fabric disposed inside the airbag main body 31, or the airbag main body 31 Pulled to the airbag base 33 side with a belt made of a base fabric hung on the outside, formed so that the recessed portion 37 in the center is relatively recessed with respect to the right shoulder bag portion 35 and the left shoulder bag portion 36 on both sides Has been. That is, in the present embodiment, the right shoulder bag portion 35 and the left shoulder bag portion 36 are configured by the same air chamber together with the recessed portion 37.

  Further, a gas introduction port 38 is formed in the airbag base 33. The gas introduction port 38 has, for example, a rectangular shape, and is used for attaching the inflator 12 and turning over the base fabric of the airbag 11 in the manufacturing process. A mounting hole for inserting a mounting bolt for mounting the retainer plate 15 to the case body 14 is formed around the gas introduction port 38. Further, on the side surface of the airbag main body 31, for example, an exhaust port 39 that is formed in a circular hole shape and can exhaust gas is formed in the upper base cloth portion.

  Further, the airbag 11 is provided with a tether means 40 that is disposed outside the airbag body 31 and can be pulled in a direction in which the right shoulder bag portion 35 and the left shoulder bag portion 36 approach each other. The tether means 40 includes a first belt 41 connected to the left shoulder bag portion 36, a second belt 42 connected to the right shoulder bag portion 35, and a strap 43 connected to the first belt 41. I have.

  The first belt 41 is formed in a short belt shape with the base fabric, the front end side is directed to the right shoulder bag portion 35 side, and the base end portion 41a is the center position in the vertical direction at the rear end portion of the left shoulder bag portion 36. It is attached to the lower side by sewing. Further, the first belt 41 is formed such that the distal end side has a width dimension, that is, a vertical dimension slightly smaller than the proximal end side, and a circular hole-shaped insertion portion 41b is formed in the vicinity of the distal end. The second belt 42 is formed in a short belt shape with a base cloth, and the base end portion 42a is the rear end portion of the right shoulder bag portion 35 with the front end side directed toward the left shoulder bag portion 36. It is attached to the lower side by sewing. The second belt 42 is formed such that the front end side is slightly smaller in width, that is, the vertical dimension, than the base end side, and a circular hole 45 is formed in the vicinity of the front end. The height positions of the first belt 41 and the second belt 42 are substantially equal to each other and are set to positions close to the chests of the passengers A and B, and the insertion portion 41b and the through hole portion 45 are mutually connected. The tip portions overlap each other in position.

  The strap 43 is made of a base cloth and is formed in a string shape such as an elongated band that can be inserted through the insertion portion 41b and the through-hole portion 45. The base end portion is a connecting portion 47 formed by sewing and is the rear surface side of the first belt 41. That is, it is attached to the passenger side. On the other hand, a circular hole-shaped locking receiving portion 48 is formed at the tip of the strap 43.

  The actuator 17 of the control means 16 includes a casing 51 having an inner chamber, a piston 52 movably supported in the inner chamber, a propellant filled in the inner chamber, and ignites the propellant. And an igniter. The housing 51 is attached to, for example, the case body 14, and the piston 52 has a locking portion 53 capable of locking and holding the locking receiving portion 48 of the strap 43 in a state of protruding to the outside of the housing 51. Are provided integrally. Then, when the igniter is operated under the control of the control means 16, the actuator 17 moves the piston 52 by the gas generated by the propellant, the locking portion 53 moves backward, and the locking receiving portion 48 of the strap 43 is moved. It is designed to be opened.

  Further, the control means 16 includes a control device including a CPU and a memory, and this control device is connected to the inflator 12 and the actuator 17 via a signal line to operate the inflator 12 and the actuator 17, and the tether means 40 Is selectively pulled and relaxed. Further, the control means 16 includes a sensor connected to the control device via a signal line. This sensor detects the state of the occupants A and B, which are protected objects protected by the airbag 11, for example, a sensor that detects the position and physique of the occupant, and whether or not a seat belt is worn. A sensor is provided.

  The airbag main body 31 can take various configurations, but in the present embodiment, the front panel 34 formed by the front base fabric portion and the upper surface portion 56 formed by the upper base fabric portion. And a lower surface portion 57 formed by the lower base fabric portion and side surface portions 58 on both sides formed by the upper base fabric portion and the side portions of the lower base fabric portion.

  The airbag device 1 has the inflator 12 attached to the case body 14, the airbag 11 folded into a predetermined shape is stored in the airbag storage portion 22 of the case body 14, and the airbag base portion 33 is attached to the case by the retainer plate 15. The cover body 18 is fixed to the body 14, the cover body 18 is attached to cover the airbag 11, and the latch receiving portion 48 of the strap 43 of the tether means 40 is latched to the latch portion 53 of the actuator 17 of the control means 16. The assembled state is assembled as the initial state.

  And this airbag apparatus 1 is attached to the instrument panel part 4 of the motor vehicle 2, and is electrically connected to the control apparatus provided with the sensor etc., and is comprised.

  Next, a deployment operation of the airbag device 1 will be described.

  First, as an outline of the operation of the airbag device 1, the control device operates the inflator 12 and injects gas from the inflator 12 when the automobile 2 collides. Then, the airbag body 11 of the airbag 11 is inflated and deployed with the inflow of gas, and as shown in FIG. 2, the tear line of the cover body 18 is broken and protrudes from the protruding port 21, and directly or windshield. The front panel 34 is deployed in front of the upper body of the passengers A and B seated in the front passenger seat, and the passengers A and B are restrained to protect them from collision impact. To do. The airbag 11 mainly has a right shoulder bag portion 35 opposed to the right shoulders of the occupants A and B, a left shoulder bag portion 36 opposed to the left shoulders of the occupants A and B, and a recessed portion 37 corresponding to the occupants A and B. Deploys facing B's chest and protects passengers A and B.

  Further, the airbag device 1 controls the control means 16 in accordance with the state of the occupants A and B detected by the sensor, and switches between the first state and the second state to change to the state of the occupants A and B. The optimal protection is achieved. Hereinafter, a state corresponding to the occupant A not wearing the seat belt will be described as a first state, and a state corresponding to the occupant B wearing the seat belt will be described as a second state.

  First, when the control means 16 judges the input from the sensor and selects the first state, as shown in FIGS. 1 (a), 3 (a), 4 and 6 (a). In addition, only the inflator 12 is actuated by the ignition signal, the actuator 17 is deactivated, and the latch receiving portion 48 of the strap 43 of the tether means 40 is held in the latched portion 53 of the actuator 17 of the control means 16. To do.

  Then, the airbag body 31 of the airbag 11 is inflated and deployed toward the occupant A. The strap 43 whose base end is fixed to the first belt 41 is provided in the through hole of the second belt 42. Since the locking receiving portion 48 at the front end portion is locked and pulled by the locking portion 53, the strap 43 pulls the first belt 41 and the second belt 42, and these are inserted. The state where the first belt 41 and the second belt 42 approach each other is maintained, that is, the right shoulder bag portion 35 and the left shoulder bag portion 36 approach each other against the pressure at which the airbag main body portion 31 is inflated and deployed. Maintained. In the deployed shape (first position) of the airbag 11, as shown in FIG. 6 (a), the recessed portion 37 is relatively closed and hardly faces the occupant A, and at least the second position. The facing area is smaller than the state.

  In the first state in which the left and right bag portions 35 and 36 are arranged side by side, the occupant A who is not wearing the seat belt is thrown out toward the airbag 11 in the front, but the right shoulder bag. The airbag 11 in which the shape close to the portion 35 and the left shoulder bag portion 36 is held is opposed to almost the entire upper body of the occupant A, that is, the right shoulder bag portion 35 and the left shoulder bag portion 36 are seated. The right shoulder, left shoulder, and chest of the occupant A thrown out from the vehicle are securely received, and even if the occupant A comes into contact, the right shoulder bag portion 35 and the left shoulder bag portion 36 do not escape so as to be separated from each other. The occupant A can be reliably restrained and protected with a sufficiently large reaction force. Therefore, even when the occupant A is relatively large, the airbag 11 can protect the occupant A from interfering with the interior parts.

  On the other hand, when the control means determines the input from the sensor and selects the second state, as shown in FIGS. 1 (b), 3 (b), 5 and 6 (b). The inflator 12 is actuated by the ignition signal, and a signal is sent to the actuator 17, the actuator 17 is actuated to retract the piston 52, that is, the locking portion 53, and the locking receiving portion 48 of the strap 43 is released to release the strap 43 Relax.

  Then, as the airbag main body portion 31 of the airbag 11 is inflated and deployed, the strap 43 that is loosened by the locking portion 53 is relatively passed through the through hole portion 45 of the second belt 42, and the first The belt 41 and the second belt 42 are relatively separated from each other, that is, the right shoulder bag portion 35 and the left shoulder bag portion 36 are separated from each other about the lower side by the pressure at which the airbag main body portion 31 is inflated and deployed. In the deployed shape (second position) of the airbag 11, as shown in FIG. 6 (b), the recessed portion 37 faces the chest of the occupant A, and has an area facing at least that of the first state. growing.

  In the second state in which the left and right bag portions 35 and 36 are separated and arranged in parallel, the occupant B wearing the seat belt is restrained in the chest and abdomen by the seat belt. Bound and protected. Here, in the airbag 11, the right shoulder bag portion 35 and the left shoulder bag portion 36 are separated from each other, abut against the shoulder portion of the occupant B, respectively, and the recessed portion 37 that is recessed with respect to the chest portion faces. Therefore, with respect to the chest of the occupant B, the force applied to the occupant B from the airbag 11 is suppressed, and the displacement of the force chest applied to the chest can be easily and appropriately set. In addition, with respect to parts such as the head other than the chest, a behavior occurs in which the right shoulder bag part 35 and the left shoulder bag part 36 escape while the passenger B is in contact with the airbag 11, The passenger B can be restrained softly and protected with a small appropriate reaction force. Therefore, even when this occupant B is relatively small, it does not receive a large force from the airbag 11 and the seat belt.

  As described above, according to the present embodiment, the airbag device 1 for the passenger seat changes the deployment shape of the airbag 11 in accordance with the presence or absence of the seat belt, thereby allowing the occupant to be in an appropriate state. Can protect. That is, for the occupant A not wearing the seat belt, the airbag 11 can be disposed so as to be able to contact the entire surface of the occupant A, and the occupant A can be reliably restrained and protected with sufficient reaction force. For the occupant B wearing the seat belt, the airbag 11 is disposed so as to be able to come into contact with the shoulder part of the occupant B, and the recessed part 37 is opposed to the chest, and the occupant is provided with a relatively small appropriate reaction force. B can be restrained softly and protected.

Further, the strap 43 of the tether means 40 is disposed outside the air chamber of the airbag main body 31, that is, not inside, and mainly acts to approach or separate the right shoulder bag portion 35 and the left shoulder bag portion 36. The change in the volume of the airbag main body 11 is small, that is, the change in the internal pressure of the airbag 11 can be suppressed. Therefore, it is possible to easily set an appropriate reaction force applicable to the passengers A and B having various physiques. Therefore, a plurality walk or with an expensive inflator 12 such as the output variable, there is no need to provide a closing being controlled exhaust port by the actuator, a simplified configuration of the airbag device 1, the manufacturing cost Can be reduced. In addition, the strap 43 disposed outside the airbag main body 31 can be easily connected to the actuator 17, and the manufacturing process can be simplified and the manufacturing cost can be reduced.

  Further, in the present embodiment, the tether means 40 includes a second belt 42 connected to the right shoulder bag portion 35 and a first belt 41 connected to the left shoulder bag portion 36, and the first belt 41 is connected to the first shoulder bag portion 36. The strap 43 fixed to the belt 41 is passed through the through hole 45 provided in the second belt 42, and the locking portion 53 of the actuator 17 locks the locking receiving portion 48 of one strap 43, whereby the tether. When the means 40 is pulled, and the locking portion 53 of the actuator 17 releases the locking of the locking receiving portion 48 of one strap 43, the tether means 40 can be loosened. Therefore, one strap 43 having a large longitudinal dimension is sufficient, and the structure can be simplified and the manufacturing cost can be reduced.

  In the above embodiment, the locking portion 53 of the actuator 17 locks the locking receiving portion 48 of one strap 43. However, the present invention is not limited to this configuration. For example, as shown in FIGS. 7 and 8, a strap 43 is attached to each of the first belt 41 and the second belt 42, a locking receiving portion 48 is provided at the tip of each strap 43, and the control means 16 The actuator 17 may be provided with a plurality of locking portions 53 for locking the locking receiving portions 48 respectively.

  Further, in the embodiment shown in FIGS. 7 and 8, as shown in FIG. 9, one locking receiving portion 48 is provided as a shape in which the tips of the two straps 43 are connected. The portion 48 can also be locked by one locking portion 53 of the actuator 17.

  In the above embodiment, the control means controls the actuator 17 according to whether or not the seat belt is worn. However, the control means comprehensively determines other conditions such as the state of the collision and the physiques of the passengers A and B. The actuator 17 can also be controlled.

  Various configurations can be adopted for the shape and arrangement of the base fabric constituting the airbag 11. Further, the airbag 11 is not limited to the passenger seat occupant airbag 11, and may be applied to, for example, the airbag 11 deployed from the rear portion of the front seat toward the upper body of the occupant in the rear seat.

  The present invention can be applied to, for example, an airbag device for a passenger in a passenger seat of a vehicle.

1 Airbag device
11 Airbag
12 Inflator
16 Control means
17 Actuator
31 Airbag body
35 Right shoulder bag
36 Left shoulder bag
37 Recess
40 tether means
41 First belt
42 Second belt
43 Strap
45 Through hole
48 Locking receiver
53 Locking part A, B Crew

Claims (3)

A right shoulder bag portion facing the occupant's right shoulder, a left shoulder bag portion facing the occupant's left shoulder, and a recessed portion recessed between the right shoulder bag portion and the left shoulder bag portion and recessed with respect to the occupant's chest An airbag main body portion in which gas is introduced inside and deployed to face an occupant; and at least one of the right shoulder bag portion and the left shoulder bag portion fixed to the outside of the right shoulder bag portion and the left shoulder bag portion An airbag provided with tether means capable of pulling one in a direction approaching the other ;
An inflator for supplying gas to the airbag main body,
An air bag apparatus comprising: control means for selectively pulling and relaxing the tether means. The airbag is deployed against the passenger seated in the seat with the seat belt,
2. The control means, wherein the occupant pulls the tether means without wearing the seat belt, and the occupant relaxes the tether means with the seat belt attached. Airbag device. The tether means includes a first belt connected to one of the right shoulder bag portion and the left shoulder bag portion, and a second belt connected to either the right shoulder bag portion or the left shoulder bag portion and provided with a through hole portion. A belt and a strap that is inserted through the through-hole portion and has a base end portion fixed to the first belt and a distal end portion provided with a latch receiving portion;
The airbag device according to claim 1 or 2, wherein the control means includes an actuator including a locking portion that releasably locks the locking receiving portion.

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