JP2016107664A - Air bag device for vehicle roof center - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air bag device for vehicle roof center, which is able to enhance passenger head restriction performance by an air bag, compared to conventional one.SOLUTION: An air bag 20 accommodated in a ceiling part inflates between passengers on the right and left front seats in the event of side collision or oblique collision. At this time, inflation behavior of the air bag 20 is stabilized by a pair of front connection members 30 connecting the lower end of a bag front 21 and the front of the front pillar or roof side rail. In addition, movement of a passenger (far-side passenger) on the opposite collision side toward the collision side can effectively be suppressed by the air bag 20. Accordingly, vehicle head restriction performance by the air bag 20 can be enhanced, compared to conventional one.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle roof center airbag device.

  Patent Document 1 discloses a technique for deploying and inflating a V-shaped airbag in front view between seated occupants from a ceiling portion at the center in the vehicle width direction downward. As a result, a pair of inflating portions are formed in the vehicle width direction, and when the occupant comes into contact with one of the inflating portions and the load of the occupant is applied, a reaction force that receives this load is generated in the other inflating portion. The movement of the passenger in the vehicle width direction is suppressed.

However, the prior art has the following problems.
Since the airbag is deployed and inflated in a V shape in front view so as to form a pair of inflating portions in the vehicle width direction, a space is formed between the pair of inflating portions (intermediate portion of the airbag). Therefore, there is room for improvement in that the passenger's head is reliably restrained by the airbag.

JP 2007-223525 A

  The objective of this invention is providing the roof center airbag apparatus for vehicles which can improve the passenger | crew head restraint performance by an airbag compared with the past.

The present invention for achieving the above object is as follows.
(1) (Example 1-4)
In the vehicle roof center airbag device of the present invention, the vehicle is housed in the center in the vehicle width direction corresponding to the space between the left and right seats, and is deployed between the passengers seated on the left and right front seats in a side collision or oblique forward collision. An air bag is provided.
The airbag includes a bag front portion positioned in front of the occupant's head.
A lower end portion of the front portion of the bag and a front portion of the vehicle front pillar or the roof side rail are connected by a pair of front side connecting members.
(2) (Example 1-4)
In said (1), the said airbag is provided with the headrest corresponding | compatible part located in the side of the headrest of the said front seat.
The headrest-corresponding portion is an inflatable portion having a bag thickness in the vehicle width direction, and can be brought into contact with the headrest from the side.
A recess for receiving the headrest is formed in the headrest corresponding portion.
(3) (Example 1-3)
In said (1) or (2), the said airbag is provided with the bag rear part located back from the head of the seating passenger | crew of the said front seat.
A lower end portion of the rear portion of the bag and a rear pillar, a center pillar, a rear portion of the roof side rail, or an intermediate portion of the roof side rail are connected by a rear side connecting member.
(4) (Example 1-3)
In the above (3), the airbag is further configured to be deployed between left and right occupants seated on the rear seat.
The rear portion of the bag includes a first bag rear portion positioned rearward from the head of the seated occupant of the rear seat, and a second bag rear portion positioned forward of the head of the seated occupant of the rear seat.
The rear connection member includes a strap that connects a lower end portion of the rear portion of the first bag and a rear pillar of the vehicle or a rear portion of the roof side rail.
(5) (Examples 2 and 3)
In said (4), the said rear side connection member is further provided with the 2nd rear side connection member which connects the lower end part of a said 2nd bag rear part, and the center part of a vehicle, or the intermediate part of a roof side rail.
(6) (Examples 1, 2, and 4)
In any one of the above (1) to (5), the front connection member is formed of a strap.
(7) (Example 3)
In any one of the above (1) to (5), the front side connecting member is configured by a tube-type airbag.

According to the above-described roof center airbag device for a vehicle (1) (hereinafter also simply referred to as “device”), the following effects can be obtained.
At the time of a side collision (side collision) or an oblique front collision (oblique collision), the airbag stored in the ceiling portion is deployed between the seated occupants of the left and right front seats. At this time, the front connecting member that connects the lower end portion of the front portion of the bag and the front portion of the front pillar or the roof side rail stabilizes the deployment behavior of the airbag, and the anti-collision side occupant (far side occupant) The movement to the collision side can be effectively suppressed by the airbag. Therefore, the passenger | crew head restraint performance by an airbag can be improved compared with the past.

According to the apparatus (2), the following effects can be obtained.
The headrest corresponding part of the airbag abuts against the headrest from the side, so that the headrest can be utilized as a support member for the airbag. Further, when the airbag receives the headrest in the recessed portion, the airbag is hooked on the headrest in the front-rear direction. For this reason, it is suppressed that an airbag moves to the front-back direction with respect to a headrest. Therefore, the headrest can be effectively used as a support member for the airbag.

According to the apparatus of (3), the following effects can be obtained.
A lower end portion of the rear portion of the bag is connected to a rear pillar, a center pillar, a rear portion of the roof side rail, or an intermediate portion of the roof side rail by a rear side connecting member. For this reason, while the deployment behavior of an airbag is stabilized, it can suppress effectively that a far side passenger | crew moves to the collision side by an airbag.

According to the apparatus of (4), the following effects can be obtained.
Since the airbag is configured to deploy between the left and right occupants seated on the rear seat, it can protect not only the seat occupant on the front seat but also the seat occupant on the rear seat. In addition, the far side seated on the rear seat is used to connect the lower end portion of the rear portion of the first bag located rearward from the head of the seated occupant of the rear seat and the rear portion of the vehicle rear pillar or the roof side rail with the first rear connecting member. The movement of the occupant to the collision side can be effectively suppressed by the airbag.

According to the apparatus of (5), the following effects can be obtained.
The second rear side connecting the lower end portion of the rear portion of the second bag located behind the head portion of the seat occupant of the front seat and in front of the head portion of the seat occupant of the rear seat and the center portion of the vehicle center pillar or the roof side rail. A connecting member is provided. For this reason, while being able to further improve the stability of the deployment behavior of an airbag, it can suppress more effectively that a far side crew member moves to the collision side.

According to the apparatus of (6), the following effects can be obtained.
The front connecting member is formed of a strap. For this reason, it is advantageous in terms of cost, and the front side connecting member can be made compact in a normal time when the airbag is not deployed.

According to the apparatus of (7), the following effects can be obtained.
The front side connecting member is composed of a tube type airbag. For this reason, the passenger | crew's head which moves diagonally forward especially at the time of diagonally forward collision (at the time of diagonal collision) can be effectively protected by a tube type airbag.

It is a schematic side view of the apparatus of Example 1 of the present invention. It is a schematic front view of the apparatus of Example 1 of this invention. (A) has shown the state immediately after the airbag expand | deployed. (B) has shown the side collision state. (A) The schematic front view which shows the passenger | crew behavior in the apparatus of Example 1 of this invention, (b) The schematic front view which shows the passenger | crew behavior in a comparative example. It is a schematic plan view which shows the positional relationship of the airbag, the headrest of a front seat, and a passenger | crew head in the apparatus of Example 1 of this invention. It is a schematic side view of the apparatus of Example 2 of this invention. It is a schematic side view of the apparatus of Example 3 of the present invention. It is a schematic front view of the apparatus of Example 3 of this invention. It is a schematic side view of the apparatus of Example 4 of this invention.

  Hereinafter, a vehicle roof center airbag device (hereinafter also simply referred to as “device”) according to an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show an apparatus according to Embodiment 1 of the present invention, FIG. 5 shows an apparatus according to Embodiment 2 of the present invention, FIGS. 6 and 7 show an apparatus according to Embodiment 3 of the present invention, and FIG. The apparatus of Example 4 of this invention is shown. Portions common to all the embodiments of the present invention are denoted by the same reference numerals throughout the embodiments of the present invention. In the figure, UP indicates the upper side, and FR indicates the front of the vehicle. Hereinafter, when the description is made simply using the front-rear, up-down, and left-right directions, the front-rear direction of the vehicle, the up-down direction of the vehicle, and the left-right direction of the vehicle are shown, respectively.

[Example 1] (FIGS. 1 to 4)
(Basic configuration)
The apparatus 10 according to the first embodiment of the present invention includes an airbag 20 as shown in FIG.

The airbag 20 is folded and stored in a ceiling portion (inside the ceiling) 5 at the center in the vehicle width direction corresponding to the space between the left and right seats. The airbag 20 is deployed at the time of a side collision (side collision) or an oblique forward collision (oblique collision), or at the time of prediction thereof. As shown in FIG. 2, the airbag 20 is opened downward toward the region between the left and right front seats 1 by cleaving a ceiling material (not shown) with the gas supplied from the inflator 50. For this reason, the airbag 20 is deployed downward between the occupants P1, P2 seated on the left and right front seats 1, 2 at the time of a side collision or an oblique collision.

As shown in FIG. 2B, a curtain airbag device 6 that is deployed in a curtain shape along a side window (not shown) may be provided on the left and right outer sides of the passengers P1 and P2. 2A and 3 showing the apparatus of the first embodiment, and FIG. 7 showing the apparatus of the third embodiment, the curtain airbag device 6 is not shown. Moreover, although illustration is abbreviate | omitted, the well-known side airbag apparatus may be provided in the passenger | crew's P1, P2 both left and right outer side. When the curtain airbag device 6 and the side airbag device (not shown) are provided, the ignition threshold value of the inflator 50 that supplies gas to the airbag 20 and deploys the airbag 20 is deployed only when the airbag 20 collides at high speed. In addition, it may be set higher than the ignition threshold value of each inflator that supplies and deploys gas to the curtain airbag and the side airbag.

The airbag 20 is provided to protect the heads of the passengers P1 and P2. The lower end when the airbag 20 is deployed is extended to the shoulders of the passengers P1 and P2 (AM50 (50th from the smaller one when 100 American Males are lined up)). This is because when the airbag 20 is provided to protect the shoulders of the passengers P1 and P2 below the shoulders, for example, to the waist, the airbag 20 becomes large and difficult to store in the ceiling portion 5.

As shown in FIG. 4, the airbag 20 includes a headrest-corresponding portion 25 located on the side of the headrests 1 a and 2 a of the front seats 1 and 2. The headrest-corresponding portion 25 is an inflatable portion (chamber) 20a having a bag thickness in the vehicle width direction of the airbag 20, and can be brought into contact with the headrests 1a and 2a from the side. And the recessed part 25a which can receive the headrest 1a, 2a is formed in this headrest corresponding | compatible part 25. As shown in FIG.

For example, as shown in FIG. 4, the recess 25 a is formed by providing a strap 25 b that connects the left and right base fabrics of the airbag 20 in a state of being separated from each other. However, the recess 25a may be formed by providing a seam 25c formed by sewing the left and right base fabrics of the airbag 20 only on the upper and lower ends of the airbag 20, as shown in FIG.

The front-rear length of the airbag 20 is a dimension that takes into account the amount of movement of the occupant's head at the time of oblique collision in the forward direction, in addition to the seat slide length. For this reason, the airbag 20 is provided with the bag front part 21 located ahead (vehicle front) from the head of passenger | crew P1, P2.

As shown in FIG. 2, the front pillar or roof of the vehicle has a front end portion and a lower end portion of the bag front portion 21 that are in the same position (including substantially the same position) in the front-rear direction as the bag front portion 21. The front part of the side rail 40 is connected. In the illustrated example, the front end portion and the lower end portion of the bag front portion 21 are connected to the front portion of the roof side rail 40 by the front side connecting member 30. The front connecting member 30 connects the bag front portion 21 and the front pillar of the vehicle or the front portion of the roof side rail 40 at the shortest distance. The front connection member 30 is provided on each of the left and right sides of the bag front portion 21. That is, a pair of left and right front connection members 30 are provided. The front side connecting member 30 is provided for stabilizing the posture of the airbag 20 and is made of a material that does not expand and contract.
The above basic configuration is applied to all the embodiments of the present invention.

(Feature configuration)
In the first embodiment of the present invention, the front side connecting member 30 is composed of a strap 30a.

  In the first embodiment of the present invention, as shown in FIG. 1, the airbag 20 is further configured to be deployed between the left and right passengers P3 and P4 seated on the rear seat 3. For this reason, the airbag 20 is provided with the bag rear part 22 located back from the head of seating passenger | crew P1, P2 of the front seats 1,2. More specifically, as shown in FIG. 4, the bag rear portion 22 includes a first bag rear portion 23 positioned rearward from the heads of the seat occupants P3 and P4 of the rear seat 3, and heads of the seat occupants P3 and P4 of the rear seat 3. A second bag rear portion 24 positioned further forward. Although not particularly limited, a non-inflatable portion (non-chamber area) 20b is provided between the second bag rear portion 24, that is, the front and rear occupants, in order to reduce the inner volume of the airbag 20 for early deployment. It may be done. Further, although not particularly limited, the inflator 50 is disposed on the ceiling portion 5 that is substantially in the same longitudinal direction as the longitudinal center of the airbag 20 in order to deploy the entire airbag 20 at an early stage.

As shown in FIG. 1, the rear end or lower end of the bag rear portion 22 is positioned at the same position (including substantially the same position) in the front-rear direction as the bag rear portion 22 by the rear side connecting member 31. The rear part of the rail 40 is connected. Specifically, the rear side connecting member 31 includes a strap 31a that connects the lower end portion of the first bag rear portion 23 and the rear portion of the vehicle or the rear portion of the roof side rail 40 at the shortest distance.

The straps 31a are provided on both the left and right sides of the first bag rear portion 23, respectively. That is, a pair of left and right straps 31a are provided. The strap 31 a is provided in order to stabilize the posture of the airbag 20 in cooperation with the front connection member 30. The strap 31a is made of a material that does not expand and contract.

Next, the operation of the first embodiment of the present invention will be described.
(Action corresponding to the basic configuration)
As shown in FIG. 3, (i) at the time of a side collision or oblique collision, a near-side occupant (P1 in the illustrated example) that is a collision-side occupant collides with the opponent vehicle V against the seat 1 when the opponent vehicle V collides. Move to the side (collision side). After that, it rebounds and moves to the opposite side (counter-impact side) from the opponent vehicle V by the action of the curtain airbag device 6, a side airbag device (not shown), and a seat belt device. (Ii) On the other hand, the far-side occupant (P2 in the illustrated example) that is the occupant on the anti-collision side moves toward the opponent vehicle V with respect to the seat 2 when the opponent vehicle V collides. Thereafter, the head moves to the opponent vehicle V side by the action of a seat belt (not shown) around the waist. (Iii) Therefore, when no structure for holding the posture of the airbag 20 is provided, the far-side occupant P2 slips through the airbag 20 as shown in FIG. There is a risk that.

However, in the embodiment of the present invention, as shown in FIG. 3A, the front side connecting member 30 that connects the lower end portion of the bag front portion 21 and the front portion of the front pillar or the roof side rail 40 is provided. For this reason, the deployment behavior of the airbag 20 is stabilized. Further, the posture of the airbag 20 in the deployed state is stabilized. Therefore, even when the far-side occupant P2 pushes the airbag 20 toward the collision side, the posture of the airbag 20 is maintained by the pair of front side connecting members 30. Therefore, the reaction force of the airbag 30 can be effectively obtained and the airbag 20 can be effectively suppressed from moving the far side occupant P2 to the collision side. Therefore, the passenger | crew head restraint performance by an airbag can be improved compared with the past.
In the illustrated example, the near side occupant is indicated by P1 and the far side occupant is indicated by P2. However, when the opponent vehicle V collides with the seat 2, the near side occupant becomes P2 and the far side occupant It will be indicated by P1.

  Moreover, in this invention Example 1, the headrest corresponding | compatible part 25 of the airbag 20 is made into the expansion part 20a. For this reason, headrest 1a, 2a can be utilized as a supporting member of airbag 20 because headrest corresponding part 25 contacts headrest 1a, 2a from a side.

Further, as shown in FIG. 4, a recessed portion 25 a is formed in the headrest corresponding portion 25. For this reason, when the airbag 20 receives the headrests 1a and 2a in the recessed portions 25a, the airbag 20 is hooked on the headrests 1a and 2a in the front-rear direction. For this reason, it is suppressed that the airbag 20 moves to the front-back direction with respect to the headrest 1a, 2a. Therefore, the headrests 1a and 2a can be effectively utilized as a support member for the airbag 20.
The above basic operation is applied to all the embodiments of the present invention.

(Action corresponding to the feature configuration)
In the first embodiment of the present invention, the following action can be obtained.
The airbag 20 is also configured to be deployed between the left and right passengers P3 and P4 seated on the rear seat 3. For this reason, not only the seat occupants P1 and P2 of the front seats 1 and 2 but also the seat occupants P3 and P4 of the rear seat 3 can be protected by the airbag 20.

As shown in FIG. 1, the lower end portion of the bag rear portion 22 and the rear portion of the vehicle or the rear portion of the roof side rail 40 are connected by a rear connecting member 31. For this reason, compared with the case where the rear side connection member 31 is not provided, while the deployment behavior of the airbag 20 is stabilized, it is more effective for the airbag 20 that the far side occupants P2 and P4 move to the collision side. Can be suppressed.

The rear side connection member 31 is comprised from the strap 31a. Therefore, the airbag 20 can effectively suppress the far-side occupant P4 sitting on the rear seat 3 from moving to the collision side. Moreover, it is advantageous in terms of cost. Furthermore, in a normal time when the airbag 20 is not deployed, the rear connecting member 31 can be made compact, and the device 10 can be easily stored.

The front connection member 30 is composed of a pair of straps 30a. For this reason, it is advantageous in terms of cost. In addition, when the airbag 20 is not deployed, the front connecting member 30 can be made compact, and the device 10 can be easily stored.

[Example 2] (FIG. 5)
The difference between the second embodiment of the present invention and the first embodiment of the present invention is as follows.
In the second embodiment of the present invention, as shown in FIG. 5, in addition to the strap 31 a, the rear connecting member 31 further includes a lower end portion of the second bag rear portion 24 and an intermediate portion of the vehicle center pillar or roof side rail 40 ( Or the 2nd rear side connection member 33 which connects with a shortest distance is provided.

The second rear side connecting members 33 are provided on the left and right sides of the second bag rear portion 24, respectively. That is, a pair of left and right second rear connecting members 33 are provided. The second rear connection member 33 is provided in order to stabilize the posture of the airbag 20 in cooperation with the front connection member 30 and the strap 31a. The 2nd rear side connection member 33 is comprised with the material which does not expand-contract, and is comprised with the strap 33a.

In the embodiment 2 of the present invention, the following effects can be obtained.
In the second embodiment of the present invention, a second rear side connecting member 33 that connects the lower end portion of the second bag rear portion 24 and the center pillar of the vehicle or the intermediate portion of the roof side rail 40 is provided. For this reason, compared with the case where the 2nd rear side connection member 33 is not provided, while stability of deployment behavior of airbag 20 can be raised further, far side occupants P2 and P4 move to the collision side. Can be more effectively suppressed.

Moreover, the 2nd rear side connection member 33 is comprised by a pair of strap 33a. For this reason, it is advantageous in terms of cost. In addition, the second rear connecting member 33 can be made compact during normal times when the airbag 20 is not deployed, and the device 10 can be easily stored.

Example 3 (FIGS. 6 and 7)
The difference between the third embodiment of the present invention and the first embodiment of the present invention is as follows.
In the third embodiment of the present invention, as shown in FIG. 6, in addition to the strap 31 a, the rear connecting member 31 further includes a lower end portion of the second bag rear portion 24 and an intermediate portion of the vehicle center pillar or roof side rail 40 ( Or the 2nd rear side connection member 33 which connects with a shortest distance is provided. Moreover, in this Example 3, the front side connection member 30 and the 2nd rear side connection member 33 are comprised by the tube type airbags 30b and 33b, respectively.

The second rear side connecting members 33 are provided on the left and right sides of the second bag rear portion 24, respectively. That is, a pair of left and right second rear connecting members 33 are provided. The second rear connection member 33 is provided in order to stabilize the posture of the airbag 20 in cooperation with the front connection member 30 and the strap 31a. The second rear connection member 33 is made of a material that does not expand and contract.

The internal spaces of the tube-type airbags 30 b and 33 b communicate with the internal space of the airbag 20 and are expanded by the gas from the same inflator 50. However, the internal space of the tube-type airbags 30 b and 33 b may not communicate with the internal space of the airbag 20. In this case, the tube-type airbags 30b and 33b are deployed by gas from an inflator (not shown) different from the inflator 50 for deploying the airbag 20.

In the third embodiment of the present invention, the following effects can be obtained.
In the third embodiment of the present invention, a second rear connecting member 33 is provided for connecting the lower end portion of the second bag rear portion 24 and the center pillar of the vehicle or the intermediate portion of the roof side rail 40. For this reason, compared with the case where the 2nd rear side connection member 33 is not provided, while stability of deployment behavior of airbag 20 can be raised further, far side occupants P2 and P4 move to the collision side. Can be more effectively suppressed.

Moreover, the front side connection member 30 and the 2nd rear side connection member 33 are comprised by the tube type airbags 30b and 33b, respectively. For this reason, the passenger | crew's head which moves diagonally forward especially at the time of a diagonal collision can be effectively protected by tube type airbag 20b, 33b.

Example 4 (FIG. 8)
The fourth embodiment of the present invention is different from the first embodiment of the present invention in the following points.
In the fourth embodiment of the present invention, as shown in FIG. 8, the airbag 20 is deployed only between the seated occupants P1, P2 of the front seats 1, 2, and deployed between the seated occupants P3, P4 of the rear seat 3. It is configured not to. The rear side connecting member 31 is not provided, and only the front side connecting member 30 and the headrests 1a and 2a are used as members for stabilizing the posture of the airbag 20.

In the fourth embodiment of the present invention, the following effects can be obtained.
In the fourth embodiment of the present invention, the airbag 20 is deployed only between the seated occupants P1, P2 of the front seats 1, 2, and is not deployed between the seated occupants P3, P4 of the rear seat 3. For this reason, the airbag 20 can be made compact in the front-rear direction. Further, even when the inflator 50 is disposed at a position close to the front side or the rear side of the airbag 20, the airbag 20 can be quickly deployed by the gas from the inflator 50. The degree of freedom of the arrangement position of the inflator 50 can be increased, such as being provided on the header 7.

DESCRIPTION OF SYMBOLS 1, 2 Front seat 1a, 2a Front seat headrest 3 Rear seat 5 Ceiling part 6 Curtain airbag device 10 Vehicle roof center airbag device 20 Air bag 20a Inflating part 20b Non-inflating part 21 Bag front part 22 Bag rear part 23 1st Bag rear portion 24 Second bag rear portion 25 Headrest corresponding portion 25a Depression portion 25b Strap 25c Seam 30 Front side connecting members 30a, 31a, 33a Strap type 30b, 33b Tubular airbag 31 Rear side connecting member 33 Second rear side connecting member 40 Roof side Rail 50 Inflator P1, P2 Seated occupant P3, P4 on left and right front seats Seated occupant V on left and right rear seat

Claims (7)

A roof center airbag for a vehicle having an airbag that is housed in the center of the vehicle width direction corresponding to the space between the left and right seats and that is deployed between passengers seated on the left and right front seats in a side or oblique forward collision A device,
The airbag includes a bag front portion positioned in front of the occupant's head,
A roof center airbag device for a vehicle, wherein a lower end portion of the front portion of the bag and a front portion of a vehicle front pillar or a roof side rail are connected by a pair of front side connecting members. The airbag includes a headrest-corresponding portion located on the side of the headrest of the front seat,
The headrest-corresponding portion is an inflatable portion having a bag thickness in the vehicle width direction, and can be brought into contact with the headrest from the side,
The roof center airbag for a vehicle according to claim 1, wherein a recess for receiving the headrest is formed in the headrest corresponding part. The airbag includes a bag rear portion positioned rearward from the head of a seated occupant of the front seat,
The lower end portion of the rear portion of the bag and a rear pillar, a center pillar, a rear portion of the roof side rail, or an intermediate portion of the roof side rail of the vehicle are connected by a rear connecting member. Vehicle roof center airbag device. The airbag is further configured to be deployed between left and right occupants seated on a rear seat,
The bag rear portion includes a first bag rear portion positioned rearward from the head of the seat occupant of the rear seat, and a second bag rear portion positioned forward of the head of the seat occupant of the rear seat,
4. The roof center airbag device for a vehicle according to claim 3, wherein the rear connection member includes a strap that connects a lower end portion of the rear portion of the first bag and a rear portion of the vehicle or a rear portion of the roof side rail. 5.   5. The vehicle roof according to claim 4, wherein the rear connection member further includes a second rear connection member that connects a lower end portion of the rear portion of the second bag and an intermediate portion of a vehicle center pillar or a roof side rail. Center airbag device.   The roof center airbag device for a vehicle according to any one of claims 1 to 5, wherein the front connection member is configured by a strap.   The roof center airbag device for a vehicle according to any one of claims 1 to 5, wherein the front connection member is configured by a tube-type airbag.

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