JP2002293212A - Head protection airbag arrangement structure for vehicle with slide door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve easiness to get on and off of a slide door and the open feeling of a passenger compartment. SOLUTION: A section shape of a slide door upper rail 64 in a view from the vehicle longitudinal direction is an inverse U shape and a plurality of bolts 66 are provided to rise inward in the vehicle lateral direction on a vehicle lateral direction inboard wall part 64A along the vehicle longitudinal direction with a designated interval. The bolts 66 are inserted in attachment holes 68 formed on the vertical wall part 32A of a rail outer panel 32 and are fastened by working holes 34B formed on the vertical wall part 34A of a rail inner panel 34 to be fixed on the vertical wall part 32A of the rail outer panel 32 with nuts 70. The slide door upper rail 64 is arranged at a vehicle-outside closed section 42 of a roof side rail 28. An airbag bag body 18 does not exist right under the slide door upper rail 64 and is offset to inside of passenger compartment.

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 mounting structure for a sliding door vehicle, and more particularly to a slide having an airbag bag inflating and deploying in a curtain shape along the vehicle longitudinal direction on the side of a vehicle compartment. The present invention relates to a structure for disposing a head protection airbag of a door vehicle.

[0002]

2. Description of the Related Art Conventionally, as a structure having an airbag bag body which inflates and deploys in a curtain shape along the vehicle front-rear direction on the side of a vehicle compartment, as disclosed in Japanese Patent Application Laid-Open No. 2000-159048,
A structure is disclosed in which a folded head protection airbag bag is disposed along an inner panel of a roof side rail.

[0003]

However, when such a storage structure of an airbag body is applied to a head protection airbag arrangement structure of a sliding door vehicle, for example, a comparative example shown in FIG. As described above, since the sliding door upper rail 100 for the sliding door is disposed in the closed cross sections 104 and 108 of the roof side rail 102, the head protection airbag bag 106 will be disposed near the door glass 107. Then, the head protection airbag bag body 106 is located below the roof side rail 102 and the closed cross section 1
04, 108 is located directly below the sliding door upper rail 100. As a result, the vehicle width direction terminal portion 110A of the ceiling member 110 that covers the head protection airbag bag body 106 from the vehicle interior side moves downward as indicated by the two-dot chain line in FIG. For this reason, the getting-in / out performance of the slide door decreases and the feeling of opening in the vehicle interior decreases.

The present invention has been made in view of the above circumstances, and has as its object to provide a head protection airbag mounting structure for a sliding door vehicle, which can improve the getting on / off performance of the sliding door and the feeling of opening in the vehicle interior.

[0005]

According to the present invention, there is provided a sliding door vehicle in which a folded head protection airbag is disposed along a side surface of a roof side rail in a vehicle interior and covered with a ceiling material. In the head protection airbag arrangement structure of the above, the slide door upper rail is disposed outside the vehicle in a closed cross section of the roof side rail,
The airbag body is offset from the position directly below the slide door upper rail toward the vehicle interior.

Therefore, the head protection airbag bag is different from the structure in which the head protection airbag bag is disposed directly below the slide door upper rail disposed within the closed cross section of the roof side rail. Since the disposition position of the body can be moved to the upper side of the vehicle, the terminal outside the vehicle width direction of the ceiling material covering the head protection airbag bag can also be disposed above the vehicle. As a result, it is possible to improve the getting on / off performance of the sliding door and the feeling of opening the vehicle interior. In addition, compared to a structure in which the sliding door upper rail is disposed within the closed cross section of the roof side rail, the closed cross sectional area of the roof side rail is increased and a strong closed cross section can be obtained, so that the thickness of the roof side rail is reduced. This increases the degree of freedom in design.

According to a second aspect of the present invention, in the head door protection airbag arrangement structure for a sliding door vehicle according to the first aspect, the folded airbag bag has a closed cross section in the roof side rail. It is arranged in a recess formed in the lower part from the inside in the vehicle width direction to the outside in the vehicle width direction.

Therefore, in addition to the contents described in claim 1,
It becomes easier to arrange the airbag bag closer to the door glass surface. As a result, the airbag body is less likely to interfere with the occupant during deployment, and the deployment performance of the airbag body is improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a structure for arranging a head protection airbag for a sliding door vehicle according to the present invention will be described with reference to FIGS.

In the drawings, an arrow FR indicates a vehicle forward direction, an arrow UP indicates a vehicle upward direction, and an arrow IN indicates a vehicle width inside direction.

As shown in FIG. 2, a head protection airbag device 10 for a ride door vehicle according to this embodiment includes a sensor 12 for detecting a side collision or a rollover state,
The two inflators 14 and 16 that eject gas when activated and the airbag 18 are configured as main components. Further, the sensor 12 is, for example,
The left and right center pillars (B pillars) 20 are disposed near lower end portions thereof.

The inflator 14 on the front side of the vehicle is disposed on a front pillar (A pillar) 22 and the inflator 16 on the rear side of the vehicle is disposed on a D pillar 30 which is a rear end of the vehicle body. Each of the inflators 14 and 16 is connected to the sensor 12 described above, and when the sensor 12 detects a side collision or a rollover state, the inflators 14 and 16 operate.

The airbag bag 18 is provided with the inflator 1.
As shown by the two-dot chain line in FIG. 2, the gas flowing in from the airbags 4 and 16 inflates and deploys along the side of the cabin to protect the head of the front seat occupant and the heads of the two front and rear rear seat occupants. It has become. In addition, the airbag bag body 18 is folded over in a bellows shape and is accommodated straddling the A-pillar garnish and the roof head lining in a long state, and the front end portion 18A of the airbag bag body 18 is The A-pillar 22 is connected to the inflator 14 near the lower portion of the inclined portion 22A. An intermediate portion 18B of the airbag body 18 is disposed along the A pillar 22 and the roof side rail 28, and a rear end portion 18C of the airbag body 18 is connected to the inflator 16 near the upper end of the D pillar 30. Are linked.

Although not shown, the airbag body 18 is manufactured by bag weaving using, for example, polyamide yarn or polyester yarn, and has a plurality of mounting holes formed at its upper edge. The mounting portion is formed to protrude.

As shown in FIG. 1, the roof side rail 28 includes a rail outer panel 32 which constitutes an outer side portion of the roof side rail 28 and a roof side rail 28.
And a rail inner panel 34 constituting a vehicle inner portion, has a closed cross-sectional structure extending in the vehicle front-rear direction. An outer edge 36A of the roof panel 36 in the vehicle width direction is welded to an upper surface of a joint flange 28A formed at an upper end portion in the vehicle width direction of the roof side rail 28. , A roof molding 37 is provided. On the other hand, a joint flange 28B formed at the lower end of the roof side rail 28 on the outside in the vehicle width direction includes:
An opening weather strip 40 is fitted.

Closed section 4 of the roof side rail 28
A lower portion 2 is formed with a concave portion 44 extending in the vehicle front-rear direction from the inside in the vehicle width direction to the outside in the vehicle width direction, and the airbag body 18 is disposed in the concave portion 44.
The airbag body 18 is provided on the inner side surface 4 of the door glass 46.
It is folded in a direction substantially perpendicular to 6A (the direction of the arrow K in FIG. 1), and is arranged along the vertical wall portion 44A of the concave portion 44 in this folded state. Note that the vertical wall portion 44A of the concave portion 44 is inclined downward and outward in the vehicle width direction, and the vertical wall portion 44A is provided with a plurality of mounting portions in which the airbag body 18 is not shown. It is attached by an attachment member.

Further, below the airbag bag body 18, a vehicle width direction outer terminal 50A of a roof head lining 50 as a ceiling material is disposed. The roof head lining 50 is made of resin, and The outer skin 54 is formed. The outer end 50A of the roof head lining 50 in the vehicle width direction is used when the airbag body 18 is deployed and inflated.
As shown by a two-dot chain line in FIG.
From this gap, the airbag bag 18 is inflated and deployed in the vehicle interior as shown by a two-dot chain line in FIG.

As shown in FIG. 3, in the present embodiment, a slide door upper rail 64 for sliding the slide door 62 to the upper part of the side surface 60A of the vehicle body 60 in the center in the vehicle longitudinal direction is provided along the vehicle longitudinal direction. It is arranged.

As shown in FIG. 1, the slide door upper rail 64 has a substantially U-shaped cross section when viewed from the vehicle front-rear direction, with the opening directed downward, and is formed on the inner wall 64A in the vehicle width direction. In the vehicle, a plurality of bolts 66 are provided upright at predetermined intervals along the vehicle front-rear direction toward the inside in the vehicle width direction. These bolts 66 are inserted into mounting holes 68 formed in the vertical wall portion 32A of the rail outer panel 32. The bolts 66 are tightened from working holes 34B formed in the vertical wall portion 34A of the rail inner panel 34, so that the vertical position of the rail outer panel 32 is reduced. It is fixed to the wall 32A with a nut 70. That is, the slide door upper rail 64 is connected to the roof side rail 2.
8, the airbag body 18 is not directly below the slide door upper rail 64 but is offset toward the vehicle interior.

An upper roller 72 is attached to the slide door upper rail 64 so as to be movable in the vehicle front-rear direction. A well-known hinge 74 for supporting the upper roller 72 is provided on an upper inner surface 62A of the slide door 62.
It is fixed by bolts not shown. Therefore, when the slide door 62 is opened,
Move outward in the vehicle width direction as shown by a two-dot chain line in FIG.

Next, the operation of the present embodiment will be described.

In the present embodiment, when a side impact load of a predetermined value or more acts on the vehicle body side portion, the side impact load is detected by the sensor 12. For this reason, the inflators 14 and 16 operate, and a predetermined amount of gas is ejected. As a result, the airbag bag body 18 starts to inflate and deploy, and the inflated and deployed airbag bag body 18 pushes and opens the vehicle width direction outer end 50A of the roof head lining 50 and the front pillar garnish, and the airbag bag body 18 extends below the roof side rail 28. It expands and develops like a curtain.

In this embodiment, the slide door upper rail 64 is disposed outside the vehicle in the closed cross section 42 of the roof side rail 28, and the airbag body 18 is located closer to the vehicle interior than directly below the slide door upper rail 64. As shown in FIG. 4, the position where the airbag bag body 106 can be disposed in the structure of the comparative example in which the slide door upper rail 100 is disposed in the closed cross sections 104 and 108 of the roof side rail 102 (see FIG. 4). (Indicated by a two-dot chain line in FIG. 4), the airbag body 18 can be disposed above. As a result, in the present embodiment, the outer terminal 50A of the roof head lining 50 in the vehicle width direction can be disposed above the position indicated by the two-dot chain line in FIG. Therefore, the occupant's getting on and off performance at the slide door 62 and the feeling of opening in the vehicle interior can be improved.

Further, in the present embodiment, compared with the structure as shown in FIG.
Can be increased in cross-sectional area. As a result, the roof side rail 28 can have a strong closed cross-sectional shape, and
By reducing the thickness of the roof side rail 28 or the like, the degree of freedom in design is increased, and the weight can be reduced.

Further, in the present embodiment, the folded airbag bag body 18 is placed in a recess 44 formed from the inside in the vehicle width direction to the outside in the vehicle width direction below the closed cross section 42 of the roof side rail 28. Since the airbag bag 18 is provided, the airbag body 18 is further attached to the side surface 46 of the door glass 46.
A becomes easy to arrange. Further, the inside surface of the recess 44 in the vehicle interior can be used as a guide surface in the deployment direction of the airbag body 18. As a result, the airbag body 18 is less likely to interfere with the occupant during inflation and deployment, and the deployment performance of the airbag body 18 is improved.

In the above, the present invention has been described in detail with respect to a specific embodiment. However, the present invention is not limited to such an embodiment, and various other embodiments are within the scope of the present invention. It is clear to a person skilled in the art that is possible. For example, the sensor 12 and the inflators 14, 16
Is not limited to the arrangement position in the above embodiment.

[0027]

According to the first aspect of the present invention, there is provided a head protection for a sliding door vehicle in which a folded head protection airbag bag is disposed along a side surface of a roof side rail in a vehicle interior and covered with a ceiling material. In the airbag arrangement structure, the slide door upper rail is disposed outside the vehicle in the closed cross section of the roof side rail, and the airbag bag body is offset closer to the vehicle interior than directly below the slide door upper rail. Therefore, the sliding door has an excellent effect of improving the getting on / off performance and the feeling of opening the vehicle interior. Also, there is an excellent effect that the degree of freedom in designing the roof side rail is increased.

According to a second aspect of the present invention, there is provided the head protection airbag arranging structure for a sliding door vehicle according to the first aspect, wherein the folded airbag bag is provided at a lower portion of a closed cross section of the roof side rail. Since it is arranged in the recess formed from the inside in the vehicle width direction to the outside in the vehicle width direction, in addition to the effect according to claim 1, an excellent effect that the deployment performance of the airbag bag body is improved. Having.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view taken along line 1-1 in FIG.

FIG. 2 is a side view showing a vehicle to which the head protection airbag arrangement structure of the sliding door vehicle according to one embodiment of the present invention is applied.

FIG. 3 is a perspective view of the vehicle to which the head protection airbag arrangement structure of the sliding door vehicle according to one embodiment of the present invention is applied, as viewed obliquely from the front.

FIG. 4 is an enlarged cross-sectional view corresponding to FIG. 1, illustrating a head protection airbag arrangement structure of a sliding door vehicle according to a comparative example of the present invention.

[Explanation of symbols]

 Reference Signs List 10 Head protection airbag device 18 Airbag bag body 28 Roof side rail 42 Closed cross section of roof side rail 44 Depression 46 Door glass 50 Roof head lining (ceiling material) 62 Slide door 64 Slide door upper rail

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D003 AA14 BB01 CA40 DA17 3D054 AA02 AA03 AA04 AA07 AA18 CC26 CC27 EE09 EE20 FF14

Claims (2)

[Claims] 1. A head protection airbag installation structure for a sliding door vehicle, wherein a folded head protection airbag bag is disposed along a vehicle interior side surface of a roof side rail and covered with a ceiling material. A slide door, wherein an upper rail is disposed outside the vehicle in a closed cross section of the roof side rail, and an airbag bag body is offset toward a vehicle interior from directly below the slide door upper rail. Vehicle head protection airbag installation structure. 2. The airbag bag body according to claim 1, wherein the folded airbag body is provided in a concave portion formed from the inside in the vehicle width direction to the outside in the vehicle width direction at a lower portion of a closed cross section of the roof side rail. The head protection airbag arrangement structure for a slide door vehicle according to claim 1, wherein: