JP2002347554A - Pillar garnish structure for automobile stored with curtain type air bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillar garnish structure for a curtain type air bag storage automobile which can reduce the chance of the air bag to intrude into the rear side of the pillar garnish when the air bag expands, prevents the pillar garnish from being removed, and can obtain a impact buffer effect when the air bag fails to expand. SOLUTION: An air bag intrusion preventing rib 31 is formed on the pillar garnish upper part rear face of at least either one of a center pillar garnish 11A or a quarter pillar garnish along the longitudinal direction of an automobile. An engaging piece 16 to be inserted and engaged with the engaging hole 44 of the vehicular body panel is provided at the tip end of the air bag intrusion preventing rib.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar garnish structure for a vehicle having a curtain airbag.

[0002]

2. Description of the Related Art Conventionally, airbag devices have been provided on the front and side surfaces of a vehicle cabin in order to safely protect an occupant of an automobile from the impact of a collision. Among them, there is a curtain type airbag as an airbag device provided to prevent the occupant's head from colliding with a side glass or the like in response to an impact from the side of the automobile. As this curtain type airbag,
2. Description of the Related Art Conventionally, an inflator having a front side (hereinafter, a front type) and a rear side (hereinafter, a rear type) are mainly known.

In the front type, as shown in FIG. 12, an inflator 70 is provided in the vicinity of an instrument panel 71, and is stored from a front pillar garnish 75 to a roof side portion 76 by gas generated from the inflator 70 at the time of a vehicle collision. Airbag 7
7 is inflated, and an airbag 77 is deployed in a curtain along the roof side portion 76 in the vehicle interior.

On the other hand, in the rear type, as shown in FIG. 13, an inflator 70 has a quarter pillar garnish (also called a rear garnish) 78 at the rear of the vehicle.
The airbag 77 that is provided from the quarter pillar garnish 78 to the roof side portion 76 is inflated by gas generated from the inflator 70 at the time of a vehicle collision, and the airbag 77 is placed in the vehicle interior along the roof side portion 76. It is a type that develops into a curtain shape.

[0005] More recently, intermediate types have been proposed. This intermediate type is the inflator 7
0 is provided near the upper end of the center pillar garnish 79 at an intermediate position between the front and rear portions of the roof side 76, and the gas generated from the inflator inflates the airbags stored in the roof side portions before and after the inflator to move along the roof side portion. This is a type in which an airbag is deployed in the shape of a curtain in the cabin.

In the intermediate type, the inflator is located at an intermediate position between the front and rear of the vehicle in the roof side portion, and the airbag is stored before and after the inflator. While the distance to the rear end is short, the front type and the rear type have an inflator located at one end of a series of airbags (the front type has a front end of the airbag, and the rear type has a rear end of the airbag). From the front end of the airbag (front end of the airbag for the front type, front end of the airbag for the rear type). For that reason, the intermediate type has advantages over the front type and the rear type in that the time required for inflating and deploying the airbag is shorter, the airbag inflates and deploys smoothly, and the like.

However, in any of the above-mentioned curtain type airbags, at least a part of the airbag is stored in a roof side portion located near an upper end of a pillar garnish, and the airbag inflates at the time of a vehicle collision. Therefore, the side portion of the ceiling material covering the roof side portion is pushed and spread toward the interior of the vehicle, and the airbag is deployed in a curtain shape in the interior of the vehicle from the gap generated thereby.
When the airbag inflates and deploys, there is a possibility that the airbag may penetrate deeply into the backside of the pillar garnish from the upper end of the pillar garnish located on the roof side portion and inflate, in which case, a problem such as the pillar garnish coming off the vehicle body panel occurs. . Particularly, in the intermediate type curtain airbag, since the inflator is near the upper end of the center pillar garnish, the airbag inflation pressure near the upper end of the center pillar garnish is larger than that of other types, and the upper end of the center pillar garnish is higher. Airbags easily penetrate deep into the back of the center pillar garnish.

Further, when the airbag does not inflate to a weak impact that does not operate the inflator, the occupant's head may hit the upper portion of the pillar garnish and receive an impact.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and it is possible to reduce the extent to which the airbag enters the backside of the pillar garnish when the airbag is inflated, and furthermore, the pillar garnish is disengaged. Difficult,
In addition, even when the airbag is not inflated, the impact relaxation effect is high,
An object of the present invention is to provide a pillar garnish structure for a curtain type airbag storage vehicle.

[0010]

According to a first aspect of the present invention, an airbag is disposed along a roof side portion located near an upper end of a pillar garnish attached to a pillar portion of a vehicle body, and the airbag is mounted in a vehicle interior. In a curtain-type airbag storage vehicle that inflates and deploys in a curtain shape, an airbag intrusion prevention rib is formed along the vehicle front-rear direction on the upper back surface of at least one of the center pillar garnish and the quarter pillar garnish, and the airbag The present invention relates to a pillar garnish structure of a curtain-type airbag storage vehicle, wherein a locking piece inserted and locked into a locking hole of a vehicle body pillar portion is provided at a tip end of an intrusion prevention rib.

A second aspect of the present invention is characterized in that, in the first aspect, the inflator for inflating the airbag is provided at an intermediate position between the front and rear of the roof side portion.

According to a third aspect of the present invention, in accordance with the first or second aspect, a locking claw is formed on a lower side of a distal end side of a locking piece inserted into a locking hole of a pillar portion of a vehicle body, and the airbag is inflated and deployed. It is characterized in that the locking claw is locked to the lower edge of the locking hole in response to a downward force and sometimes a cabin direction force applied to the locking piece.

According to a fourth aspect of the present invention, in any one of the first to third aspects, an upper position and a lower side of the airbag intrusion prevention rib on the back side of the pillar garnish in which the airbag intrusion prevention rib is formed. At least one of the positions is provided with a shock absorbing rib protruding therefrom.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic view showing a roof side portion and a pillar portion in a vehicle cabin according to each embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 in the first embodiment, and FIG. Sectional view showing the bag during inflation,
4 is a perspective view showing the upper back side of the center pillar garnish used in the first embodiment, FIG. 5 is a cross-sectional view taken along the line BB of FIG. 2, and FIG. 6 is a cross section showing the center pillar garnish in the first embodiment when the center pillar garnish is attached. FIG. 7 shows the first embodiment of the present invention.
FIG. 8 is a cross-sectional view showing an impact when the airbag is not inflated in the embodiment, and FIG.
FIG. 9 is a perspective view showing the upper back side of the center pillar garnish used in the second embodiment, FIG. 10 is a sectional view taken along line AA of FIG. 1 in a third embodiment of the present invention, and FIG. It is a perspective view which shows the upper back side of the center pillar garnish used for an example.

First, a common part in a pillar garnish structure of a curtain type air bag storage vehicle according to the first to third embodiments of the present invention will be described with reference to FIG.
In the structure of the first to third embodiments, an inflator 51 for inflating an airbag is arranged at a front-rear intermediate position of a roof side portion 41 located near an upper end of a pillar garnish G attached to a vehicle body pillar portion P. The airbag 53 connected to the front inflator 51 is folded in the front-rear direction of the inflator 51 to a position near the front pillar portion (not shown) and the quarter pillar portion Pc.
The intermediate position between the front and rear of the roof side portion 41 where the inflator 51 is disposed means a position near the center, and does not necessarily have to be exactly the half position between the front and rear.

The roof side portion 41 is covered with a side portion 56 of a ceiling material 55 such as a molded ceiling mounted in the vehicle interior, and a front pillar portion has a front pillar garnish (not shown) and a center pillar portion Pb. Are center pillar garnishes 11A (first embodiment), 11B (second embodiment), 11C (third embodiment), and quarter pillar garnishes 21A (first embodiment), 21B (second embodiment) Example) and 21C (third example) are respectively attached. Airbag intrusion prevention ribs 13 and 23 are formed on the upper and back surfaces of the center pillar garnishes 11A, 11B and 11C and the quarter pillar garnishes 21A, 21B and 21C in the front-rear direction of the automobile. Locking pieces formed at the tips of the bag intrusion preventing ribs 13 and 23 are locked in locking holes of the center pillar portion Pb and the quarter pillar portion Pc. Then, when the inflation 51 is actuated by the collision of the automobile, gas is pressed into the airbag 53 from the inflator 51 and the airbag 53 is inflated, and the airbag 53 pushes the side portion 56 of the ceiling material to the vehicle interior side. , Air gap 5
3 is deployed in the vehicle interior in a curtain shape along the roof side portion 41.

Next, each embodiment will be described in detail. First, a first embodiment will be described. FIG. 2 relates to the first embodiment,
FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, that is, a cross-sectional view taken from the center pillar portion Pb to the roof side portion 41;
FIG. 5 is a sectional view taken along line BB of FIG. In the first embodiment, an airbag holding bracket 61 is attached to the roof side portion 41 on the vehicle interior side of the vehicle body panel 43 in the vehicle front-rear direction along the roof side portion 41. The airbag holding bracket 61 has a generally U-shaped gutter-like cross section having an upper piece 62 and a lower piece 63 for regulating the deployment direction of the airbag in the upper and lower vehicle compartment directions. Is accommodated along the roof side portion 41 in a folded state. The roof side portion 41 in which the airbag 53 is disposed is covered by a side portion 56 of a ceiling member 55 attached to the ceiling of the vehicle body. The lower end of the side portion 56 of the ceiling material is sunk below the upper ends of the center pillar garnish 11A and the quarter pillar garnish 21A without being fixed so as to be pushed toward the interior of the vehicle by the inflation of the airbag 53. Reference numeral 12 denotes an upper end of the center pillar garnish 11A.

The center pillar garnish 11A
Is formed of a vertically long plastic molded product having a substantially U-shaped cross section so as to cover the center pillar portion Pb from the inside of the vehicle interior, and is separated from the rear upper end 12 by a required distance downward as shown in FIGS. The clip is attached to the vehicle body panel 43 of the center pillar portion Pb via the attachment portion 13 formed at the position. At this time, a gap is provided between the center pillar garnish 11A and the vehicle body panel 43 of the center pillar portion Pb in order to mitigate an impact when the occupant's head collides with the center pillar garnish 11A and to accommodate a wiring member.

The center pillar garnish 1
An airbag intrusion prevention rib 15 is formed on the upper back surface of the upper portion 1A above the mounting portion 13 in the front-rear direction of the vehicle. A piece 16 is formed.

The rib 15 for preventing airbag intrusion has a width substantially equal to the entire width of the center pillar garnish 11A (width along the longitudinal direction of the vehicle). A height that is located near the top 64 is preferred. Furthermore, the position of the airbag intrusion prevention rib 15 is preferably near the upper end of the center pillar garnish 11A.

2, 5 and 6, the locking piece 16 is formed on the vehicle body panel 43 of the center pillar portion Pb so as to be aligned with the locking piece 16. As shown in FIG. In this embodiment, the front end 1 of the airbag intrusion prevention rib 15 is inserted and locked in the locking hole 44.
7, three protrusions are formed in parallel at a predetermined interval.
A downwardly extending engaging claw 18 is formed on the lower side of the front end side of each of them. The locking claw 18 is locked to the lower edge 44a of the locking hole 44 when a force is applied to the locking piece 16 downward and in the vehicle interior direction, and the locking piece 16 comes off from the locking hole 44. Is formed in a wedge shape protruding from the lower surface of the locking piece 16 so as to prevent the occurrence of the wedge. The height (thickness) d of the locking claw 18
May be somewhat larger than the height e of the locking hole 44, or conversely, d ≦ e. When the height d of the locking claw 18 is slightly larger than the height e of the locking hole 44, the locking claw is formed in the locking hole 44 when the center pillar garnish 11A is attached to the center pillar portion Pb. You only have to push 18 forcibly. On the contrary, the height d of the locking claw 18 is
4, when the center pillar garnish 11A is attached to the center pillar portion Pb,
As shown in FIG. 3, the top 6 of the lower piece 63 of the airbag holding bracket 61 is formed by the inflation of the airbag 53.
4 is pushed over by the airbag 53 and the airbag intrusion prevention ribs 15 and the locking pieces 16 are pushed downward.
The locking claw 18 at the tip of the locking piece 16 is the lower edge 44 a of the locking hole 44.
Lock securely.

In the above structure, when the vehicle collides, the inflator 51 operates and the airbag 53 is inflated. At this time, as shown in FIG.
The inflating direction is regulated in the vehicle interior direction by the airbag holding bracket 61, and while the side portion 56 of the ceiling member 55 is pushed in the vehicle interior direction, a part of the airbag 53 is moved to the lower one-top portion of the airbag holding bracket. 64 and side part 5 of ceiling material 55
Center pillar garnish 11A from the gap between
Try to get into the back of the top edge of the. However, since the airbag 53 is blocked by the airbag intrusion prevention ribs 15 formed on the upper back surface of the center pillar garnish 11A, the airbag 53 cannot penetrate further deeper into the back side of the center pillar garnish 11A. The pillar garnish 11A does not easily come off the vehicle body panel 43, and the airbag 53 efficiently pushes and spreads the side portion 56 of the ceiling material 55, so that the pillar garnish 11A is smoothly deployed in the vehicle interior.

In addition, since the locking piece 16 formed at the tip 17 of the airbag intrusion prevention rib 15 is locked in the locking hole 44 of the center pillar portion Pb, the inflation of the airbag 53 is increased. Accordingly, even if a force in the vehicle interior direction is applied to the center pillar garnish 11A, the center pillar garnish 11A can be prevented from coming off.
Further, since the locking claw 18 is formed below the locking piece 16, when the airbag 53 that inflates as described above pushes the airbag intrusion preventing rib 15 downward, the locking claw 18 is formed. The lock 18 is securely locked to the lower edge 44a of the lock hole 44, so that the lock is ensured, and the center pillar garnish 11A can be reliably prevented from coming off.

The locking claw 18 is provided with a locking hole lower edge 44.
a, which has no locking action against the force pushing from the inside of the vehicle compartment to the outside of the vehicle compartment, the occupant's head is moved to the center pillar garnish by a slight impact to the extent that the inflator 51 does not operate. When you hit the top of
The upper part of the center pillar garnish 11A is pressed and deformed outwardly of the vehicle compartment as shown by the chain line in FIG. 7, and the impact can be reduced.

In this embodiment, similarly to the center pillar garnish 11A, the air pillar intrusion preventing ribs, the locking pieces, and the locking claws are formed in the quarter pillar garnish 21A. Since the locking pieces are locked in the locking holes formed in the vehicle body panel, the quarter pillar garnish 21A can be prevented from coming off when the airbag 53 is inflated.

The structure of the second embodiment is similar to that of the center pillar garnish 11 shown in FIG.
At least one of the upper position and the lower position of the airbag intrusion prevention rib 15 on the back surface of B (upper position in the figure)
In addition, the ribs 31 for shock absorption are provided protruding,
Other structures are the same as the first embodiment. The same parts as in the first embodiment are denoted by the same reference numerals as those in the first embodiment. Also, in the quarter pillar garnish 21B, it is preferable to provide a shock absorbing rib at at least one of the upper position and the lower position of the airbag intrusion prevention rib.

The shock absorbing ribs 31 are provided to enhance the shock relaxation at the time of a low impact when the inflator 51 does not operate and in the event of a head collision. In this example, the ribs 31 are orthogonal to the air bag intrusion preventing ribs 15. A plurality of pieces are formed at predetermined intervals along the airbag intrusion prevention ribs 15 at a height at which the leading ends abut the vehicle body panel 43 of the center pillar portion Pb. Separating the shock absorbing ribs 31 from the airbag intrusion preventing ribs 15 and the locking pieces 16 increases the shock absorbing property. Also, as in this example, a locking hole 44 formed in the vehicle body panel 43 of the center pillar portion Pb on the extension of the shock absorbing rib 31.
Is required, the height f of the tip of the shock absorbing rib 31 needs to be larger than the height d of the locking hole 44.

In the second embodiment, the airbag 5
When the airbag 3 is inflated, the center of the airbag 53 is prevented by the ribs 15 for preventing airbag intrusion into the back of the center pillar garnish 11B and the locking effect by the locking pieces 16 as in the first embodiment. The detachment of the pillar garnish 11B is prevented. Also, in the quarter pillar garnish 21B, similarly to the center pillar garnish 11B, ribs, locking pieces, and locking claws for preventing airbag intrusion are formed, and the locking holes formed in the vehicle body panel of the quarter pillar portion Pc are formed in the quarter pillar garnish 21B. Since the locking pieces are locked, the quarter pillar garnish 21B can be prevented from coming off when the airbag 53 is inflated.

Further, when the occupant's head collides with the upper portion of the center pillar garnish 11B due to a slight impact such that the inflator 51 does not operate, the upper portion of the center pillar garnish 11B is pushed outward from the cabin toward the outside of the cabin. Thereby, the shock absorbing ribs 31 are compressed and deformed between the upper rear side of the center pillar garnish 11B and the vehicle body panel 43 of the center pillar portion Pb, thereby efficiently absorbing the shock. Further, as described above, the shock absorbing rib 31 is provided with the airbag intrusion preventing rib 15 and the locking piece 1.
6, the shock absorbing ribs 31
Are more easily deformed by compression, and the shock absorption is increased.

If the quarter pillar garnish 21B is also provided with a shock absorbing rib, the head of the quarter pillar garnish 21B is also provided to the rear occupant by a slight impact in which the inflator 51 does not operate.
When bumping against B, the shock can be efficiently relaxed and absorbed by the compression deformation of the shock absorbing rib.

The structure of the third embodiment is shown in FIG. 10 which shows a cross section taken along line AA of FIG. 1 and FIG. 11 which shows the back surface of the center pillar garnish 11C. At least one of the upper position and the lower position (upper position in the drawing) of the shock absorbing rib 32 is protruded, and the lower piece 63 of the bracket 61 for holding the airbag is provided with the shock absorbing rib 3.
The center pillar garnish 1 in contact with the tip 33 of 2
A pillar garnish rattling preventing spring piece J for pushing the inner side of the vehicle 1C in the vehicle interior direction is formed, and the other structure is the same as that of the first embodiment. The same parts as in the first embodiment are denoted by the same reference numerals as those in the first embodiment. Also in the quarter pillar garnish 21C, shock absorbing ribs are provided on at least one of the upper position and the lower position of the airbag intrusion prevention rib, and the lower piece of the airbag holding bracket is in contact with the tip of the shock absorbing rib. It is preferable to form a pillar garnish rattle preventing spring piece that contacts and pushes the quarter pillar garnish 21C into the vehicle interior.

The impact absorbing ribs 32 are provided to enhance the impact mitigation of a head collision at the time of a low impact such that the inflator 51 does not operate. In this example, the ribs are orthogonal to the airbag intrusion preventing ribs 15. A plurality of pieces are formed at predetermined intervals along the airbag intrusion prevention ribs 15 at a height at which a gap is formed between the center pillar portion Pb and the vehicle body panel 43. The impact absorbing rib 3
2 and the rib 15 for preventing airbag intrusion and the locking piece 16 have higher shock absorption.

The pillar garnish rattling preventing spring piece J is for preventing rattling during normal operation of the center pillar garnish 11C. In this embodiment, the lower piece 63 of the metal airbag holding bracket 61 is
The center pillar garnish 11C is bent obliquely downward from the vicinity of the upper end 12 to the vehicle body panel 43 side, and a portion beyond the bent top 69 constitutes a pillar garnish rattling preventing spring piece J. The pillar garnish rattling preventing spring piece J has a downward biasing portion 69a that is obliquely approaching the vehicle body panel 43 side from the bent top portion 69,
The body panel 4 is bent from the tip of the lower urging portion 69a.
And a vehicle interior direction urging portion 69b extending parallel to 3 or away from the vehicle body panel 43 to approach the vehicle interior side.

In the third embodiment, when the locking piece 16 is inserted into the locking hole 44 of the vehicle body panel 43 and the center pillar garnish 11C is attached to the vehicle body panel 43 by the clip 14 or the like, The pillar garnish rattle preventing spring piece J is bent as a whole by pressing the cabin direction biasing portion 69b against the tip end 33 of the shock absorbing rib 32 toward the vehicle body panel 43 side. The upper portion 69 bends upward in the vehicle exterior direction, thereby generating a downward elastic restoring force in the lower urging portion 69a and an elastic restoring force in the vehicle interior direction in the vehicle interior direction urging portion 69b. Therefore, after the center pillar garnish 11C is attached, the center pillar garnish 11C is pushed downward and toward the vehicle interior by the elastic restoring force of the pillar garnish rattling preventing spring piece J, and the locking piece 1
6 is the lower edge 4 of the locking hole 44 of the vehicle body panel 43.
The center pillar garnish 11C is fixed without rattling by locking with the 4a. In the quarter pillar garnish 21C as well, if the pillar garnish rattling preventing spring piece is provided so as to be in pressure contact with the shock absorbing rib, rattling of the quarter pillar garnish can be prevented.

When the airbag is inflated, the center pillar garnish 11C is prevented from entering the back of the center pillar garnish 11C by the airbag 53 in the same manner as in the first embodiment. 11C is prevented from coming off. At this time, also in the quarter pillar garnish 21C, similarly to the center pillar garnish 11C, an airbag intrusion prevention rib,
Since the locking pieces and the locking claws are formed and the locking pieces are locked in the locking holes formed in the vehicle body panel of the quarter pillar Pc portion, it is possible to prevent the quarter pillar garnish 21c from coming off when the airbag is inflated. .

When the occupant's head collides with the upper portion of the center pillar garnish 11C due to a slight impact such that the inflator 51 does not operate, the upper portion of the center pillar garnish 11C is placed in the vehicle compartment, as in the second embodiment. The shock absorbing ribs 32 are pushed from the inside to the outside of the cabin, whereby the center pillar garnish 11C
Between the vehicle body panel 43 of the center pillar portion Pb and the upper back side of the vehicle body, and efficiently absorbs impact. Further, when the shock absorbing ribs 32 are separated from the airbag intrusion preventing ribs 15 and the locking pieces 16 as described above, the shock absorbing ribs 32 are more easily deformed by compression, and the shock absorbing property is improved. Get higher.

If the quarter pillar garnish 21C is also provided with a shock absorbing rib, the head of the quarter pillar garnish 12C is also provided to the rear occupant by a slight impact that does not activate the inflator 51.
When hitting, the impact can be efficiently absorbed by the compression deformation of the impact absorbing rib.

The contents of the present invention are not limited to the above-described embodiment, but may be appropriately changed without departing from the spirit of the invention. For example, the position of the inflator may be any of the front side, the front / rear intermediate position of the roof side portion, and the quarter pillar side. In addition, when the inflator is located at the front / rear intermediate position of the roof side portion, it is essential to provide the airbag intrusion prevention rib and the locking piece on the center pillar portion, and appropriately provide the quarter pillar garnish with the inflator. When it is on the quarter pillar side, it is essential to provide the airbag intrusion prevention rib and the locking piece on the quarter pillar garnish, and it is appropriate to provide it on the center pillar part.

[0039]

As described above and described above, according to the pillar garnish structure of the curtain type air bag storage vehicle according to the first aspect of the present invention, when the air bag is inflated, the air bag is prevented from entering the pillar garnish by the air bag intrusion preventing rib. The pillar garnish can be prevented from penetrating deeply into the backside of the upper end, and the pillar garnish is locked to the vehicle body panel by the locking piece, so that the pillar garnish can be reliably prevented from coming off when the airbag is inflated. Moreover, since the structure is simple, the pillar garnish is excellent in terms of mounting properties and cost.

According to the pillar garnish structure of the curtain type air bag storage vehicle according to the second aspect of the present invention, the inflator for inflating the air bag is located at an intermediate position between the front and rear of the roof side portion, and is located at the center pillar portion or the quarter pillar portion. Even when the gas pressure applied to the airbag is large, the ribs for preventing airbag intrusion when the airbag is inflated can prevent the airbag from penetrating deeply behind the upper end of the pillar garnish, and the locking pieces enable the pillar garnish. Is locked to the body panel,
The pillar garnish can be reliably prevented from coming off. Moreover, since the structure is simple, the pillar garnish is excellent in terms of mounting properties and cost.

Further, according to the third aspect of the present invention, a downward locking claw is formed below the distal end of the locking piece inserted into the locking hole of the pillar portion of the vehicle body, so that the engaging member is inflated when the airbag is inflated and deployed. The locking claw is securely locked to the lower edge of the locking hole against the downward force and the cabin direction force applied to the stopper, so that the pillar garnish can be more reliably prevented from coming off when the airbag is inflated. .

Further, according to the fourth aspect of the present invention, shock absorption is provided at at least one of the upper position and the lower position of the airbag intrusion prevention rib on the back side of the pillar garnish in which the airbag intrusion prevention rib is formed. Even if the occupant's head collides with the pillar garnish during a slight impact such that the airbag inflator does not operate, the impact absorbing rib is compressed and deformed between the vehicle body panel. And can effectively absorb the impact.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a roof side portion and a pillar portion in a vehicle cabin in each embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1 in the first embodiment.

FIG. 3 is a cross-sectional view showing the airbag in the first embodiment during inflation.

FIG. 4 is a perspective view showing an upper back side of a center pillar garnish used in the first embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is a cross-sectional view illustrating a state in which a center pillar garnish in the first embodiment is mounted.

FIG. 7 is a cross-sectional view illustrating an impact when the airbag is not inflated in the first embodiment.

FIG. 8 is a sectional view taken along line AA of FIG. 1 in a second embodiment.

FIG. 9 is a perspective view showing the upper back side of the center pillar garnish used in the second embodiment.

FIG. 10 is a sectional view taken along line AA of FIG. 1 in a third embodiment.

FIG. 11 is a perspective view showing the upper back side of the center pillar garnish used in the third embodiment.

FIG. 12 is a schematic diagram of a vehicle cabin in which an inflator is on a front side.

FIG. 13 is a schematic diagram of a vehicle cabin in which an inflator is on a quarter pillar side.

[Explanation of symbols]

11A, 11B, 11C Center pillar garnish 15 Airbag intrusion preventing rib 21A, 21B, 21C Quarter pillar garnish 16 Locking piece 18 Locking claw 31, 32 Shock absorbing rib 41 Roof side portion 44 Locking hole 44a Locking hole Lower edge 51 inflator 53 airbag

Continued on front page F-term (reference) 3D003 AA11 BB02 CA32 3D023 BA01 BB10 BD07 BD08 BE03 BE36 3D054 AA02 AA03 AA04 AA07 AA18 EE20

Claims (4)

[Claims] An airbag is arranged along a roof side portion located near an upper end of a pillar garnish attached to a pillar portion of a vehicle body, and the airbag is inflated and deployed in a curtain shape in a vehicle interior. In the stowed vehicle, an airbag intrusion prevention rib is formed along the front and rear direction of the vehicle on an upper back surface of at least one of the center pillar garnish and the quarter pillar garnish. A pillar garnish structure for a vehicle with a curtain-type airbag, comprising a locking piece inserted and locked in the locking hole. 2. The pillar garnish structure according to claim 1, wherein an inflator for inflating the airbag is provided at an intermediate position between the front and rear of the roof side portion. 3. A locking claw is formed at a lower end of a locking piece inserted into a locking hole of a pillar portion of a vehicle body, and the locking claw is added to the locking piece when the airbag is inflated and deployed. 3. The pillar garnish structure of a vehicle with a curtain-type airbag according to claim 1, wherein the locking claw is locked to a lower edge of the locking hole in response to a force applied to the vehicle. . 4. An impact absorbing rib is projected from at least one of an upper position and a lower position of the airbag intrusion prevention rib on the back side of the pillar garnish in which the airbag intrusion prevention rib is formed. The pillar garnish structure of a vehicle with a curtain-type airbag according to any one of claims 1 to 3, characterized in that: