JP2001334902A - Head protective air bag device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head protective air bag device capable of smoothing opening operation of a lower end of an air bag cover connected to an upper end of a pillar garnish and quickly completing development and expansion of an air bag. SOLUTION: In this head protective air bag device M1, the folded air bag 23 is covered with the air bag cover 15 to be accommodated in an upper part position of a pillar part CP of a vehicle interior side I. The air bag 23 pushes and opens the air bag cover 15 to protrude in a manner of covering the pillar garnish 7 placed in the vehicle interior side I of the pillar part CP during the development and expansion of the air bag 23. The lower end 21a of the air bag cover 15 is placed to the vehicle interior side I compared to the upper end 9 of the pillar garnish 7 and is connected to the pillar garnish 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head protection airbag device mounted on an automobile, and more particularly, to a folded airbag which is covered with an airbag cover at a position above a pillar portion inside the vehicle. The present invention relates to a head protection airbag device configured to be housed.

[0002]

2. Description of the Related Art Conventionally, in this type of head protection airbag device, as described in Japanese Patent Application Laid-Open No. 10-138858, the airbag extends from a front pillar portion to a center pillar portion. It was folded and stored around the upper edge of the opening inside the vehicle so as to extend to the rear side.

[0003] The folded airbag is housed in a roof side rail portion on an upper edge side of an opening on the inside of the vehicle, covered with a door portion of an airbag cover arranged on a lower edge side of a roof head lining. At the time of inflation, the door portion of the airbag cover was pushed open to expand and inflate. In the center pillar portion, the airbag has been deployed and inflated so as to cover the inside of the center pillar garnish disposed inside the center pillar portion.

However, in the conventional head protection airbag device, the lower edge of the airbag cover door is bent outward and connected to the upper edge of the pillar garnish of the center pillar. . Therefore, when the airbag pushes and opens the door, the door is once bent and opened so as to get over the upper edge of the pillar garnish,
There is room for improvement in that it is difficult to open smoothly and that the deployment and inflation of the airbag are completed quickly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the opening operation of a lower edge portion of an airbag cover connected to an upper edge portion of a pillar garnish is smoothly performed to quickly complete deployment and inflation of an airbag. It is an object of the present invention to provide a head protection airbag device that can be operated.

[0006]

In the head protection airbag device according to the present invention, the folded airbag is housed in a position covered by an airbag cover at a position above a pillar portion inside the vehicle, and the airbag is accommodated therein. The head protection airbag device, wherein when the bag is deployed and inflated, the airbag pushes and opens the airbag cover to protrude so that the airbag can cover a pillar garnish disposed in the vehicle interior part of the pillar portion. A lower edge of the airbag cover is disposed on the vehicle interior side from an upper edge of the pillar garnish, and is connected to the pillar garnish.

It is desirable that the airbag cover is disposed as an integral body inside the vehicle in a range from the front pillar portion to the rear pillar portion with the intermediate pillar portion therebetween.

It is preferable that the airbag and the airbag cover constitute an assembled body that can be integrally attached to a body.

Further, it is preferable that an upper edge portion of the pillar garnish is connected to the body so as to close a gap between the pillar garnish and the body.

[0010] Furthermore, the upper edge of the airbag cover covers the inside of the vehicle at the lower edge of the roof head lining disposed above the airbag cover. Placed inside,
It is desirable to connect with the roof head lining.

[0011]

In the head protection airbag device according to the present invention, the lower edge portion of the airbag cover is arranged on the vehicle interior side from the upper edge portion of the pillar garnish and connected to the pillar garnish. When the airbag cover is pressed by the airbag during inflation, the lower edge of the airbag can be immediately opened and moved to the inside of the vehicle without climbing over the upper edge of the pillar garnish.

Therefore, in the head protection airbag device according to the present invention, the opening operation of the lower edge portion of the airbag cover connected to the upper edge portion of the pillar garnish is smooth, and the deployment and inflation of the airbag can be quickly performed. Can be completed.

[0013] If the airbag cover is disposed as an integral body inside the vehicle in the range from the front pillar portion to the rear pillar portion with the intermediate pillar portion interposed therebetween, the airbag cover on the upper edge side of the opening peripheral edge on the vehicle inner side is provided. The airbag cover continuously covers substantially the entire area, and the design inside the vehicle can be improved as compared with the case where the airbag cover is partially disposed inside the vehicle.

Further, if the airbag and the airbag cover are configured as an assembled body that can be integrally attached to the body, the airbag and the airbag can be assembled when the airbag device is assembled to a vehicle. Since the airbag and the airbag cover can be mounted on the vehicle simply by attaching the assembled body with the cover to the vehicle, the workability of mounting the airbag device on the vehicle is improved. Can be.

Further, the upper edge of the pillar garnish is
If the airbag is inflated and inflated, the upper edge of the pillar garnish prevents the airbag from entering between the pillar garnish and the body if it is connected to the body so as to close the space between the pillar garnish and the body. As a result, the pressure of the airbag can be guided to the lower edge of the airbag cover, and the airbag can smoothly protrude inward.

Further, the upper edge of the airbag cover is disposed on the vehicle inside the lower edge of the roof head lining so as to cover the vehicle interior of the lower edge of the roof head lining disposed above the airbag cover. If it is configured to be connected to the roof head lining, even if the terminal processing such as trimming at the lower edge of the roof head lining is insufficient, the upper edge of the air bag cover is connected to the lower edge of the roof head lining. By covering, the terminal treatment of the lower edge portion of the roof head lining can be performed easily, and the deterioration of the appearance design of the roof head lining can be suppressed.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the head protection airbag device M1 according to the first embodiment shown in FIGS. 1 to 7 has a front pillar portion FP at an upper edge side edge of an opening W of a door or window inside a vehicle. The folded airbag 23 is long disposed on the roof side rail portion RR through the center pillar portion CP, which is an intermediate pillar portion, to the vicinity of the rear pillar portion RP.

The head protection airbag device M1 comprises an airbag 23, an inflator 31, a mounting bracket 28, an airbag cover 15, and an assist grip 11.

The airbag 23 is formed by weaving from yarn such as polyamide or polyester, and
As shown in FIG. 2, the main body 24 has a substantially rectangular plate-shaped main body 24 which is inflated by flowing inflation gas from the inflator 31, and a plurality of mounting portions 26 arranged on the upper edge side of the main body 24. I have. A substantially cylindrical gas inflow portion 25 for allowing inflation gas from the inflator 31 to flow is disposed at the upper front side of the main body 24. Each mounting part 2
6 is a vehicle interior I and a vehicle exterior O, as shown in FIGS.
And a mounting bracket 28 made of sheet metal is attached to the roof side rails by using mounting bolts 29 and 35 passing through the mounting hole 26a together with the mounting bracket 28. It will be attached to the inner panel 2 on the body 1 side in the portion RR.

The mounting bolts 29 fasten the airbag mounting portion 26 and a mounting portion 18 of the airbag cover 15 described later to the inner panel 2 together.
The mounting bolts 35 are used to fasten the airbag mounting portion 26, the mounting portion 17 of the airbag cover 15 described later, and the mounting portion 12 of the assist grip 11 described later to the inner panel 2 together. Become. The nut 2 for screwing the bolts 29 and 35 is attached to the inner panel 2.
Mounting holes 2a and 2c provided with b and 2d are respectively formed.

As shown in FIGS. 1, 2, and 7, the inflator 31 is disposed above the front side of the airbag 23 and is hidden by the assist grip 11 (F) on the front side. On the outside O of the vehicle. The inflator 31 includes a cylindrical main body 32 that discharges inflation gas, and a main body 32 that is connected to the inner panel 2 on the body 1 side of the roof side rail RR.
And a sheet metal bracket portion 33 for attaching the bracket portion to the main body. The main body 32 includes a large diameter portion 32a and a small diameter portion 32b having a gas discharge port 32c. The bracket portion 33 includes a substantially cylindrical holding portion 33 a that holds the main body portion 32 so as to hold the body portion 32, and a holding portion 33.
and a substantially rectangular plate-shaped mounting piece 33c that extends downward from FIG. Clamping section 33
a is constituted by projecting a plurality of pressing portions 33b for pressing and holding the outer peripheral surface of the main body portion 32 toward the inner circumferential side, reducing the diameter so as to plastically deform, and holding the main body portion 32. Becomes The attachment piece 33c has two attachment holes 33d through which attachment bolts 35 for attaching the inflator 31 to the inner panel 2 on the body 1 side are inserted.

The gas inlet 25 of each airbag 23
Is externally connected to the small-diameter portion 24c of the inflator body 24 using a clamp (not shown).

Assist grip 11 (11F / 11B)
As shown in FIGS. 1, 2, 4, and 7, are provided between the pillars FP, CP, and RP on the upper edge side of the opening W, and a grip 13 for the occupant to grip, and And mounting portions 12 arranged at both ends in the front-rear direction. Each assist grip 11 has a core 11 made of sheet metal that retains its shape, and a coating layer 11 b made of a soft synthetic resin such as soft vinyl chloride or urethane that thickly covers the periphery of the core 11.
And, it consists of.

Each mounting portion 12 has a mounting bolt 35
The airbag 1 has a mounting hole 12a through which the airbag 1 is inserted.
5, which can be fitted to the vehicle interior portion of each mounting portion 17 described later.
It is formed in a substantially truncated cone shape. In addition, each mounting hole 12a
A cap 12b is fixed to the periphery of the inside I of the vehicle in order to hide the bolt 35 when the mounting portion 12 is fastened to the inner panel 2 together with the mounting portion 26 and the mounting piece portion 33c.

As shown in FIGS. 1 to 7, the airbag cover 15 extends from the front pillar portion PF to the center pillar portion C.
In the roof side rail portion RR from P to the rear pillar portion RP, it is long in the front-rear direction, and is disposed between the lower edge of the roof head lining 5 and the upper edge of the opening W. The airbag cover 15 is made of a synthetic resin, and is disposed over the entire area on the lower edge side.
The door 21 is opened by being pushed by the airbag 23, and the general part 16 on the upper side of the door 21 is provided. A thin hinge portion 20 is formed on an upper edge side of the door portion 21 at a boundary portion with the general portion 16 so that the door portion 21 opens smoothly. The general portion 16 is formed with three types of mounting portions 17, 18, and 19 protruding to the outside O of the vehicle.

The mounting portions 17 and 18 are formed in a substantially cylindrical shape protruding to the outside O of the vehicle, and the bottom wall portions 17a and 17a on the protruding end surface side.
The mounting holes 17b and 18b penetrate the 18a. The mounting portion 17 is provided with the assist grips 11F and 11
Together with the mounting portions 12 at both ends in the front-rear direction of B and the bracket portion 33 of the inflator 31, the mounting portion 18 is fastened to the inner panel 2 together with the mounting portion 26 of the airbag 23 together with the mounting portion 26 of the airbag 23. Part. In addition, as shown in FIG. 2, the mounting piece 17 of the inflator bracket 33 is provided on the mounting portion 17 for arranging the mounting portion 12 in the front assist grip 11 </ b> A.
c is interposed between the inner panel 2 and the inner panel 2. However, the inflator bracket 33 is not interposed between the inner panel 2 and the mounting portion 17 of the rear assist grip 11B where the mounting portion 12 is disposed. In addition, a cap 18c is fixed to the inside portion of each mounting portion 18 in order to hide a bolt 29 when the mounting portion 18 is fastened together with the airbag mounting portion 26 to the inner panel 2. .

The mounting portion 19 includes a metal locking shaft 19a buried in the vehicle exterior portion of the airbag cover 15, a locking cap 19d made of rubber or soft synthetic resin for locking the locking shaft 19a, It is composed of Locking shaft 1
9a is a head 1 bulging in the radial direction at the tip of a neck 19c.
9b. The locking cap 19d is
As a substantially cylindrical shape which can be locked to the head 19b, a thick locking portion 19e on the distal end side, a locking groove 19f on the outer periphery of the base portion side of the locking portion 19e, and an outer periphery on the base portion side of the locking cap 19d. And a concave groove 19g arranged at the bottom. This mounting part 1
Reference numeral 9 denotes a state in which the locking cap 19d is externally mounted on the locking shaft 19a, and is inserted into the mounting hole 2e provided in the inner panel 2 to the position of the locking groove 19f, so that the mounting hole 2e is located on the vehicle outside O. The locking cap locking portion 19e locked to the locking shaft head 19b is locked to the peripheral edge and attached to the inner panel 2. In this mounting state, even if the airbag cover 15 is strongly pulled toward the vehicle interior I, the elastic deformation of the locking cap locking portion 19e causes the airbag cover 15
By merely moving to the vehicle inner side I, the locking shaft head 19b and the locking cap locking portion 19e do not fall out of the mounting hole 2e, and the mounting portion 19 can be firmly mounted on the inner panel 2.

When the mounting portion 19 is to be removed from the inner panel 2 for maintenance or the like, first, the mounting portion 19 is held until the concave groove 19g of the locking cap 19d is disposed on the inner peripheral surface of the mounting hole 2e. 19 is pushed into the outside O of the vehicle. Then, since the inner diameter of the locking cap 19d is formed so that the head 19b of the locking shaft 19a can be pulled out from the locking cap 19d, the locking cap 19d is locked to the peripheral edge of the mounting hole 2e. Thus, the locking shaft 19a can be pulled out from the locking cap 19d and the mounting hole 2e, and the airbag cover 15 can be removed from the inner panel 2.

As shown in FIG. 5, in a portion of the general portion 16 of the airbag 15 above the center pillar portion CP, a lateral wall reinforced by a rib 16b is provided at a portion of the vehicle outside O above the hinge portion 20. A portion 16a is formed. The side wall portion 16a is provided with the folded airbag 2.
3 and the airbag cover 1 above the inner panel 2
5 are arranged so as to close the gap between the first and second halves.

The lower edge of the airbag cover 15, that is, the lower edge 21 a of the door 21 is located on the vehicle interior I from the upper edge 9 of the center pillar garnish 7 at the center pillar portion CP. Thus, it is connected so as to be flush with the general portion 8 of the center pillar garnish 7. The upper edge 16c of the airbag cover 15 is also bent to the outer side O of the full head lining 5 in the lower edge 5c.
a of the roof head lining 5
It is connected so that it may become flush.

The center pillar garnish 7 is shown in FIG.
As shown in FIG. 7, a general portion 8 covering the vehicle interior I of the center pillar portion CP and an upper edge 9 of the upper end thereof are provided. It comprises a horizontal wall portion 9b extending to O and abutting on the inner panel 2, and a mounting portion 9c arranged to extend upward along the inner panel 2 from the tip of the horizontal wall portion 9b. A recess 9a is formed at the intersection of the horizontal wall 9b and the general portion 8 for accommodating the tip (lower end) of the lower edge 21a of the airbag cover door 21. A center pillar garnish 7 is attached to the inner panel 2 on the body 1 side by bolts 10 near both edges in the front-rear direction of the vehicle.
A mounting hole 9d for stopping is formed. The inner panel 2 has mounting bolts 10 through which the mounting holes 9d are inserted.
Is formed with a mounting hole 2f provided with a nut 2g capable of screwing into the hole.

At the rear pillar portion PR, as in the case of the center pillar portion CP (see the reference numerals in parentheses in FIG. 5), the lower end of the lower edge portion 21a of the airbag cover door portion 21 is provided with the rear pillar portion RP. From the upper edge 6b of the rear pillar garnish 6 covering the inside I, it is arranged on the inside I of the vehicle,
The rear pillar garnish 6 is connected so as to be flush with the general portion 6a. The rear pillar garnish 6 includes a general portion 6a that covers the vehicle interior I of the rear pillar portion RP, and an upper edge portion 6b at an upper end thereof.
The inner panel 2 extends from the upper end of the general portion 6a to the outside O of the vehicle.
And a mounting portion 6e arranged along the inner panel 2 from the tip of the horizontal wall portion 6d. A lower edge portion 21a of the airbag cover door portion 21 is provided at an intersection of the horizontal wall portion 6d and the general portion 6a.
A concave portion 6c is formed for accommodating the lower end of the cover. The mounting portion 6e has a mounting hole 6f for fixing the rear pillar garnish 6 to the inner panel 2 with the bolt 10.

Next, the mounting of the head protection airbag device M1 of the first embodiment on a vehicle will be described.
The airbag assembly A is formed. When forming the airbag assembly A, first, the airbag 23 is folded.
When the airbag 23 is folded, it is folded in a bellows and a valley fold so that the lower edge side of the main body portion 24 approaches the upper edge side from the flat state in the uninflated state. . After folding, a tape material 27 for preventing breakage that can be broken at predetermined intervals (see FIGS. 8 to 10).
Is wound around. After being folded, the mounting brackets 28 are mounted on the mounting portions 26, respectively.

Then, the folding of the gas inflow section 25 is eliminated,
The gas inlet 25 is connected to the small diameter portion 32b of the inflator main body 32 by using a clamp (not shown).
Also, the diameter of the inflator holding portion 33 a is reduced, and the main body 32 is held by the bracket 33.

As shown in FIG. 8, the inflator bracket portion 33 and the predetermined mounting portion 26 of the airbag 23 are arranged at the outer side O of each mounting portion 17 of the airbag cover 15, and The mounting portion 1 of the assist grip 11 </ b> F
2 and fit each mounting bolt 35 into the mounting hole 12a / 17.
b, 26a, and 33d, and a washer-shaped spring plate nut 37 is fitted into the male screw portion 35b of each bolt 35.
Further, the cap 12b is fitted on the inner peripheral edge of the mounting hole 12a. Incidentally, the spring plate nut 37 is formed from a thin plate-like spring plate.
It can be easily fitted so that it cannot be removed.

In the above-described embodiment, the airbag 23 is attached to the portion of the mounting portion 17 of the airbag cover 15 on the vehicle outer side O without interposing the inflator bracket 33 in the above-described manner.
The predetermined mounting portions 26 are arranged, and each mounting portion 1
7, the mounting portion 12 of the assist grip 11B is fitted into the vehicle interior I, and each mounting bolt 35 is attached to the mounting hole 12a.
17b and 26a, a washer-shaped spring plate nut 37 is fitted to the male screw portion 35b of each bolt 35, and the cap 12b is fitted to the inner periphery of the mounting hole 12a.

As shown in FIG. 9, an airbag mounting portion 26 to which a mounting bracket 28 has been fixed is disposed at a position O on the vehicle outside in each mounting portion 18 of the airbag cover 15 and each mounting bolt 29 is attached. , Through the mounting holes 18b and 26a, the spring plate nut 37 is fitted into the male screw portion 29b of each bolt 29, and the cap 18c is further attached to the mounting portion 1.
8, the airbag assembly A can be formed.

That is, the airbag assembly A is composed of the periphery of the mounting hole 12a of each mounting portion 12 of the assist grip 11F, the mounting portion bottom wall portion 17a of the airbag cover 15, the bracket portion mounting piece portion 33c of the inflator 31, and the like. The head of the mounting bolt 35 is formed by the airbag mounting portion 26, the peripheral edge of the mounting hole 12a of each mounting portion 12 of the assist grip 11B, the mounting portion bottom wall portion 17a of the airbag cover 15, and the airbag mounting portion 26. 35a and spring leaf nut 37
The mounting portion 26 with the mounting portion bottom wall portion 18a and the mounting bracket 28 fixed to the airbag cover 15 is fixed by the head portion 29a of the mounting bolt 29 and the spring plate nut 37. After being sandwiched, the assist grips 11F, 11B, the airbag cover 15, the airbag 23, and the inflator 31 are assembled with each other,
It is integrated.

The assembly of the airbag assembly A to the vehicle is as follows.
After removing the caps 12b and 18c, the male screw portions 35b of the respective mounting bolts 35 are connected to the respective mounting holes 2 of the inner panel 2.
a, and the male screw portion 29b of each mounting bolt 29 is screwed into a nut 2d disposed in each mounting hole 2c of the inner panel 2.
Each of the mounting portions 19 is inserted and locked in the mounting hole 2 e of the inner panel 2.
2b and the cap 18c at the inside of each mounting portion 18 on the vehicle, the airbag assembly A
Can be mounted on the roof side rail portion RR, and the head protection airbag device M1 can be mounted on a vehicle.

When the airbag device M1 is mounted on a vehicle, an operation signal input line (not shown) extending from the airbag control circuit is connected to each inflator body 32. Before assembling the airbag device M1, as shown in FIG. 10, the center rear pillar garnish 7.6 of the center rear pillar portion CP / RP is attached to the inner panel 2 using the mounting bolt 10 or the like. Therefore, the front pillar garnish 4 and the roof head lining 5 of the front pillar portion FP are assembled in the vehicle.

When the inflator 31 is actuated after the head protection airbag device M1 is mounted on the vehicle, the inflation gas is discharged from the gas discharge port 32c of the inflator main body 32, and the airbag passes through the gas inflow portion 25. The gas for inflation flows into the main body 24, and the airbag main body 24 is inflated to break the tape material 27 and to push open the door 21 of the airbag cover 15 to cover the opening W. It will expand and expand.

At this time, in the head protection airbag device M1 of the first embodiment, the lower edge portion 21a of the airbag cover 15 is provided.
However, from the upper edge 9.6b of the pillar garnish 7.6,
The airbag is disposed on the inside I of the vehicle and connected flush with the general portions 8.6a of the pillar garnish 7.6. When the airbag cover door portion 21 is pushed by the airbag 23 during deployment and inflation, the airbag is closed. The lower edge 21a is a pillar garnish 7
・ 6, without going over the upper edge 9.6b,
It can be opened and moved to the inside I of the vehicle.

Therefore, in the head protection airbag device M1 of the first embodiment, the lower edge portion 21a of the airbag cover connected to the upper edge portion 9.6b of the pillar garnish 7.6.
The opening operation of the airbag 23 becomes smooth, and the deployment and inflation of the airbag 23 can be completed quickly.

In the first embodiment, the upper edge 9.6b of the pillar garnish 7.6 is formed by the side walls 9b / 6d and the mounting portions 9c / 6e.
When the airbag 23 is deployed and inflated, the pillar garnish upper edge 9.6b is connected to the pillar garnish 7 of the airbag 23 when the airbag 23 is inflated and inflated. The pressure between the airbag 23 and the inner panel 2 can be prevented, and the pressure of the airbag 23 can be guided to the lower edge 21a of the airbag cover 15 so that the door 21 can be easily opened and the airbag 23 can be opened. Can smoothly project to the inside I of the vehicle.

Further, in the first embodiment, the airbag cover 15 is disposed as an integral part of the vehicle inside I between the front pillar FP and the rear pillar RP with the center pillar CP therebetween. , Opening W inside car I
The airbag cover 15 covers substantially the entire area of the peripheral edge of
Is continuously covered, and the design of the vehicle interior I can be improved as compared with the case where the airbag cover is partially disposed inside the vehicle.

In the first embodiment, the upper edge 16c of the airbag cover 15 covers the vehicle interior I of the lower edge 5a of the roof head lining 5 disposed above the airbag cover 15. The roof head lining is arranged on the inner side I of the lower edge portion 5 a and connected to the roof head lining 5. Therefore, even if the terminal processing such as trimming at the roof head lining lower edge 5a is insufficient, the roof head lining lower edge 5a is covered by the airbag cover upper edge 16c. Terminal processing can be easily performed, and the deterioration of the appearance design of the roof head lining 5 can be suppressed. The roof head lining 5 is
Normally, the terminal is trimmed by vacuum forming, and when the terminal is exposed on the inside I of the vehicle, the terminal processing such as trimming is carefully performed with extra man-hours so as not to deteriorate the appearance design. Needed.

Further, in the first embodiment, the airbag device M1 includes the mounting bolts 35 and 29 and the spring plate nut 3
7 and the assist grip 11 and the airbag 2
3. Inflator 31, and airbag cover 15
As an airbag assembly A assembled so as to be integrally attached to the inner panel 2 on the body 1 side, and the airbag integrated when the airbag device M1 is assembled to the vehicle. Since it is sufficient only to attach the assembly A to the vehicle, the workability of assembling the airbag device M1 to the vehicle can be improved. Of course, since the airbag device M1 is integrated as the airbag assembly A, handling such as transportation and management until the airbag device M1 is attached to the vehicle becomes easy.

In the head protection airbag device M1 of the first embodiment, the inflator 31 is disposed at a position outside the assist grip 11F on the vehicle side, and
It is fixed to the inner panel 2 on the side. That is, the assist grip 11F serves as a cover material for the inflator 31. Although the assist grip 11F itself has a metal core material 11a, the front side is made of a soft synthetic resin such as soft vinyl chloride or urethane so as to improve the feel when gripped. Is provided.

Therefore, even if the occupant tries to interfere with the inflator 31, the occupant will not interfere with the assist grip 11F having a cushioning property (especially the grip portion 13 having a space provided on the outside of the vehicle).

In the first embodiment, the inflator 31 is connected to the front pillar FP and the center pillar CP.
Is shown on the roof side rail portion RR between the center and rear pillar portions RP and RP if the gas inflow portion 25 of the airbag 23 is made to correspond. And the inflator 31
May be arranged.

Further, as in the head protection airbag device M2 of the second embodiment shown in FIG.
A may be configured to be fixed to the inner panel 2 of the rear pillar portion RP so that A is covered with the rear pillar garnish 6. In the airbag device M2, the inflator 31A is provided with a cylindrical main body 3 capable of discharging an inflation gas.
And the inner panel 2 with the bolt 4
And a bracket portion 33 to be stopped. Further, in the airbag 23A, a gas inflow portion 25 that allows the inflation gas to flow into the main body portion 24 is disposed above the rear end of the main body portion 24. And this gas inflow section 25
Is connected to the airbag main body 32 by using a clamp 46.

Further, the front assist grip 11F
The inflator 31 is not provided at the part, as in the assist grip 11B on the rear side.

The other parts are the same as in the first embodiment. The upper edge 6b of the rear pillar garnish 6
Is disposed only at the portion of the airbag 23A that is deployed and inflated, and at the upper portion where the inflator 31A is disposed, a part of the lateral wall portion 6d is opened so that the gas inflow portion 25 can be connected to the inflator body portion 32. I have.

In this airbag device M2, the assist grips 11F, 11B, the airbag cover 15, and the airbag 23A with the inflator 31 removed from the airbag assembly A of the first embodiment are connected to the bolts 35, 29,
An airbag assembly B integrated by a nut 37 is configured.

Therefore, the second embodiment is also configured as an airbag assembly B in which the airbag 23A and the airbag cover 15 are assembled so as to be integrally attached to the inner panel 2 on the body 1 side. When assembling the airbag device M1 to the vehicle, the airbag 23A and the airbag cover 15 are connected only by attaching the assembled body B in which the airbag 23A and the airbag cover 15 are integrated to the vehicle. The airbag device M2 can be mounted on a vehicle, and the workability of assembling the airbag device M2 to the vehicle can be improved.

The gas inflow section 25 is connected to the inflator main body section 32 in advance by the rear pillar garnish 6.
With respect to the inflator body 32 in a state covered with
The gas inflow section 25 is connected using the clamp 46, and then the airbag assembly B is attached to the inner panel 2 using the bolts 35 and 29. By the way, using the clamp 46, the inflator 31A is previously assembled to the airbag assembly B to form an assembly. When the airbag assembly B is assembled to the vehicle, the opening of the side wall 6d is used. And rear pillar garnish 6
The inflator 31A may be fixed to the inner panel 2 on the back surface side of the above, and then the airbag assembly B may be attached to the inner panel 2 using the bolts 35 and 29.

Of course, in the airbag device M2 of the second embodiment, other functions and effects can be obtained in the same manner as in the first embodiment.

It should be noted that the head protection airbag device according to the present invention has one center pillar CP as an intermediate pillar between the front pillar FP and the rear pillar RP.
Not only when the front pillar part F
It can be mounted on a vehicle in which two or three or more intermediate pillars are disposed between P and the rear pillar RP.

[Brief description of the drawings]

FIG. 1 is a front view of a head protection airbag device according to a first embodiment of the present invention as viewed from the inside of a vehicle.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is a sectional view taken along a line VV in FIG. 1;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 1;

FIG. 7 is an exploded perspective view of a main part of the embodiment.

FIG. 8 is a cross-sectional view of the airbag assembly according to the embodiment, which corresponds to a portion shown in FIG.

FIG. 9 is a cross-sectional view of the airbag assembly according to the embodiment, which corresponds to a portion shown in FIG.

FIG. 10 is a cross-sectional view of the airbag assembly according to the embodiment, which corresponds to the portion shown in FIG.

FIG. 11 is a front view of the head protection airbag device according to the second embodiment as viewed from the inside of the vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body, 6 ... Rear pillar garnish, 6b, 9 ... Upper edge, 7 ... Center pillar garnish, 15 ... Airbag cover, 21a ... Lower edge, 23 / 23A ... Airbag, I ... Car interior, O ... Outer side of vehicle, FP: Front pillar, CP: (Middle pillar) Center pillar, RP: Rear pillar, AB: Airbag assembly, M1 / M2: Head protection airbag device.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor, Junyuki Sakuma 1 Ochiai, Ochiai, Kasuga-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. Address Toyoda Gosei Co., Ltd. F-term (reference) 3D054 AA07 AA18 BB21 BB30

Claims (5)

[Claims] 1. A folded airbag is stored in an airbag cover at a position above a pillar portion inside the vehicle, and when the airbag is deployed and inflated, the airbag is mounted on the vehicle of the pillar portion. A head protection airbag device that pushes and opens the airbag cover so as to cover a pillar garnish disposed on an inner portion, wherein a lower edge of the airbag cover is an upper edge of the pillar garnish. The head protection airbag device is further disposed inside the vehicle and connected to the pillar garnish. 2. The airbag cover according to claim 1, wherein the airbag cover is provided integrally with the vehicle in a range from the front pillar portion to the rear pillar portion with the intermediate pillar portion therebetween. Head protection airbag device. 3. The airbag according to claim 1, wherein the airbag and the airbag cover form an assembled body that can be integrally attached to a body. Head protection airbag device. 4. The body according to claim 1, wherein an upper edge of the pillar garnish is connected to the body so as to close a gap between the pillar garnish and the body. The head protection airbag device according to item 1. 5. An inboard side of the lower edge of the roof head lining such that an upper edge of the air bag cover covers an inner side of a lower edge of a roof head lining disposed above the air bag cover. The head protection airbag device according to any one of claims 1 to 4, wherein the head protection airbag device is disposed at a position where the airbag is connected to the roof headlining.