JP7011883B2 - Structure of vehicle equipped with curtain shield airbag - Google Patents

Description

The present invention relates to the structure of a vehicle equipped with a curtain shield airbag.

As a structure of this kind, for example, there is one described in Patent Document 1.
In the structure described in the same document, a garnish (pillar garnish) provided so as to cover the roof side inner portion of the body panel of the vehicle, or a curtain shield airbag folded above or inside the head lining. Is arranged so as to be hidden. The edge portion of the garnish or the head lining is overlapped with the opening trim attached to the upper edge portion of the window portion provided on the side portion of the vehicle, and is set so as not to generate an unsightly gap. When a side collision of the vehicle occurs and the curtain shield airbag starts to expand due to the operation of the inflator, the edge of the garnish or head lining is pressed by the curtain shield airbag to open the lower part thereof. The curtain shield airbag is deployed in the passenger compartment from this open portion.

The above-mentioned configuration is adopted when the window portion on the side of the vehicle is an openable type and the opening trim having a weather strip is provided on the upper edge portion of the window portion. When the window portion is a fixed window, the above-mentioned opening trim is not provided, and it is difficult to adopt the above-mentioned configuration as it is.

Therefore, when the window portion is a fixed window, a means for covering the lower surface portion of the roof side inner portion by using a garnish is appropriately adopted as in the configuration of the embodiment of the present invention described later. In this case, the edge portion of the head lining is overlapped on the upper side of the tip portion on the inner side in the vehicle width direction of the garnish. According to such a configuration, when a side collision of the vehicle occurs and the curtain shield airbag starts to expand, the edge portion of the head lining is pressed and separated from the tip portion of the garnish, thereby causing the curtain. The lower area of the shield airbag is opened, and the curtain shield airbag is deployed in the passenger compartment.

However, in the above configuration, there is room for improvement as described below.

That is, it is necessary to surely deploy the curtain shield airbag in the vehicle interior at the time of a side collision of the vehicle. Here, as one aspect of the side collision of the vehicle, there is a so-called pole side collision. This pole side collision is a side collision in which the vehicle slips sideways and the vehicle side collides with a pole barrier such as a utility pole. When such a pole side collision occurs, the impact load is also input to the high position on the side surface of the vehicle, so the garnish receives the load input from the outside in the vehicle width direction and moves inward in the vehicle width direction. It will be displaced. When such a displacement occurs, the overlapping length of the tip portion of the garnish on the inner side in the vehicle width direction and the edge portion of the head lining in the vehicle width direction becomes large. This makes it difficult for the edge of the head lining to separate from the tip of the garnish when the curtain shield airbag begins to expand (the gap between the edge of the head lining and the tip of the garnish is difficult to open). However, there is a risk that the curtain shield airbag will not deploy properly. Further, unlike the above, even when the tip portion of the garnish on the inner side in the vehicle width direction rises, it may be difficult to properly deploy the curtain shield airbag. In order to improve the reliability of the operation of the curtain shield airbag, it is desired to appropriately eliminate such a risk.

Japanese Unexamined Patent Publication No. 11-115674 Japanese Unexamined Patent Publication No. 2001-122073

The present invention has been conceived under the above-mentioned circumstances, and it is intended to appropriately and surely deploy the curtain shield airbag in the vehicle interior when a pole side collision of the vehicle occurs. The challenge is to provide a structure for vehicles equipped with curtain shield airbags.

In order to solve the above problems, the following technical means are taken in the present invention.

The structure of the vehicle equipped with the curtain shield airbag provided by the present invention includes a garnish having a roof side inner lower surface cover portion arranged so as to cover the lower surface portion of the roof side inner portion of the vehicle body panel, and the roof. A head lining in which an edge portion is overlapped on the upper side of the tip portion on the inner side in the vehicle width direction of the side inner lower surface cover portion, and a head lining arranged above the end edge portion of the head lining and on the side of the vehicle. At the time of a collision, the end edge portion is pressed and deformed so as to be separated from the tip portion of the roof side inner lower surface cover portion, so that the curtain shield air can be deployed in the vehicle interior below the roof side inner lower surface cover portion. In the structure of a vehicle equipped with a curtain shield airbag, which comprises a bag, the roof side inner lower surface cover portion of the garnish is inserted into a hole provided in the roof side inner portion from below. Moreover, the protrusion that can regulate the displacement of the roof side inner lower surface cover portion inward in the vehicle width direction due to the contact with the edge portion of the hole portion and the protrusion are displaced in the front-rear direction of the vehicle. The inclined surface portion is provided with an inclined surface portion, and the inclined surface portion is the roof when the portion of the roof side inner lower surface cover portion where the inclined surface portion is provided is displaced inward in the vehicle width direction. It is slanted so that it slides into a part of the side inner portion and the tip portion of the roof side inner lower surface cover portion can be lowered by this sliding contact , and the height becomes lower toward the inside in the vehicle width direction. It is a feature.

With such a configuration, the following effects can be obtained.
That is, in the initial stage when the vehicle has a pole side collision, the roof side inner lower surface cover portion is affected by the action of the protrusion of the roof side inner lower surface cover portion of the garnish and the edge portion of the hole portion of the roof side inner portion abuting. It is possible to suppress the displacement inward in the vehicle width direction and prevent the overlapping length of the tip portion of the roof side inner lower surface cover portion and the edge portion of the head lining from becoming unreasonably long. On the other hand , even if the roof side inner lower surface cover portion is displaced inward in the vehicle width direction, in that case, the inclined surface portion of the roof side inner lower surface cover portion is in sliding contact with a part of the roof side inner portion. By the action, the tip of the roof side inner lower surface cover portion is lowered. Therefore , at the initial stage of the deployment operation of the curtain shield airbag, the phenomenon that the edge portion of the head lining does not become difficult to separate from the tip portion of the roof side inner lower surface cover portion is prevented from occurring, and the curtain shield airbag is installed in the passenger compartment. It can be deployed appropriately.

Other features and advantages of the invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

It is a schematic perspective view of the main part which shows an example of the structure of the vehicle interior side of the vehicle provided with the structure of the vehicle equipped with a curtain shield airbag. It is sectional drawing of the main part II-II of FIG. It is sectional drawing of the main part III-III of FIG. It is a schematic front view which shows an example of the garnish used for the structure shown in FIG. It is sectional drawing of the main part which shows the example of this invention.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The structure A of the vehicle equipped with the curtain shield airbag shown in FIG. 1 has a fixed window provided between two pillars 1a and 1b (for example, C pillar and D pillar) located near the rear side of the side portion of the vehicle V. 2. Garnish 3 that covers the vehicle interior side area around the fixed window 2, head lining 4, curtain shield airbag 5 that is folded into a bar shape that extends in the front-rear direction of the vehicle, and an inflator for expanding and deploying this. It includes a 50 and a body panel 6 (see FIG. 2).

As shown in FIG. 2, the body panel 6 has a structure in which an outer panel 6a and an inner panel 6b are joined to form a window opening 60 for a fixed window 2. Of the inner panel 6b, the indoor area near the upper edge of the window opening 60 is the roof side inner portion 61, and the roof side inner portion 61 has a substantially horizontal shape having an appropriate width in the vehicle width direction. Alternatively, it includes a gently sloping window opening upper wall portion 61a. The window opening 60 is closed by the fixed window glass 20. The fixed window glass 20 is fixed to the body panel 6 by abutting the peripheral portion of the window opening 60 of the outer panel 6a via the sealing material 21 and pressing the outer peripheral edge portion by the molding 22. ing.

In FIGS. 1 and 4, the garnish 3 is a resin panel in which an opening 30 corresponding to the fixed window 2 is formed, and two regions on the front side and the rear side of the opening 30 are two pillars 1a and 1b. The pillar cover portions 31a and 31b (pillar garnish portion) that cover the vehicle interior side of the vehicle, and the upper region of the opening 30 is the roof side inner lower surface cover portion 32 (roof side inner garnish portion) and below the opening 30. The side region is a cover portion 31c that covers the vehicle interior side near the belt line of the body panel 6.

As shown in FIG. 2, the roof side inner lower surface cover portion 32 is located below the lower surface portion of the roof side inner portion 61 (the lower surface portion of the window opening upper wall portion 61a), and is located on the roof side inner portion 61. It is a part that covers the lower surface. A pedestal portion 33 reinforced by ribs 34 is formed on the upper surface side of the roof side inner lower surface cover portion 32, and the pedestal portion 33 has a protrusion 35 and a contact portion 36 for rotation regulation. Is provided.

The protrusion 35 stands upward from the upper surface of the pedestal 33, is inserted into the hole 62 provided in the roof side inner portion 61 from below, and is inward in the vehicle width direction of the hole 62. It is in contact with the side edge portion 62a. As a result, it is restricted that the roof side inner lower surface cover portion 32 is displaced inward in the vehicle width direction with respect to the roof side inner portion 61. Preferably, one or a plurality of ribs 35a for reinforcing the protrusion 35 are provided on the side surface of the protrusion 35 (see also the enlarged view of the main part in FIG. 4). As shown in FIG. 4, the protrusions 35 are provided at a total of two locations at appropriate intervals in the front-rear direction of the vehicle. However, the specific number of the protrusions 35 is not limited to this. This point is the same for the contact portion 36 for rotation regulation, which will be described later.

The rotation-regulating contact portion 36 is rib-shaped so as to stand upward on the pedestal portion 33 and one end side is connected to one side surface of the protrusion 35. The upper end of the contact portion 36 is in contact with the lower surface portion of the roof side inner portion 61 in the region on the inner side in the vehicle width direction with respect to the hole portion 62. As a result, the roof side inner lower surface cover portion 32 does not rotate in the direction in which the tip portion 32a on the inner side in the vehicle width direction rises.

As shown in FIG. 4, two engaging convex portions 38 and two clip convex portions 39 located below the two engaging convex portions 38 are provided on the upper portions of the pillar cover portions 31a and 31b of the garnish 3. As shown in FIG. 3, the engaging convex portion 38 has a curved cross-sectional shape, and is obliquely below the hole portion 68 of the body panel 6 (more strictly, the inner panel 6b as a pillar inner panel). It is possible to plug it in. In the state of being inserted into the hole 68, the engaging convex portion 38 is in a state where the tip-side portion engages with the inner panel 6b and cannot be easily disengaged from the hole 68. The clip convex portion 39 can be fitted into the hole portion 69 of the inner panel 6b in a state where it is prevented from coming off.

Although omitted in the drawings, the garnish 3 is provided with a plurality of parts similar to or similar to the clip convex portion 39, and by using these parts, the garnish 3 can be attached to the body panel 6. Is possible. The engaging protrusion 38 has a longer dimension than the protrusion 35, and when the garnish 3 is attached to the body panel 6, at least the tip portions of the two engaging protrusions 38 are inserted into the holes 68. The garnish 3 is aligned with the body panel 6, and in this state, it is possible to insert the two protrusions 35 into the hole 62 and the clip protrusion 39 into the hole 69. ing.

In FIG. 2, the head lining 4 is a member (ceiling lining material) that covers the lower surface side of the roof portion of the vehicle V. The end edge portion 4a of the head lining 4 in the vehicle width direction overlaps with the tip portion 32a on the inner side of the roof side inner lower surface cover portion 32 in the vehicle width direction. It is arranged so as to be sandwiched between the tip portion 32a and the roof side inner portion 61.

The curtain shield airbag 5 is arranged above the edge portion 4a of the head lining 4 and a portion in the vicinity thereof. When the vehicle V causes a side collision and the inflator 50 is activated, the curtain shield airbag 5 starts to expand. In the initial stage of this expansion operation, the region near the edge portion 4a of the head lining 4 is a curtain. It is pressed by the shield airbag 5 and separated from the tip portion 32a of the roof side inner lower surface cover portion 32 as shown by the virtual line in FIG. As a result, the lower region of the curtain shield airbag 5 is opened, and the curtain shield airbag 5 can be deployed in the vehicle interior below the roof side inner lower surface cover portion 32.

Next, the operation of the structure A of the vehicle equipped with the curtain shield airbag described above will be described.

First, when the vehicle V causes a pole side collision, a load F inward in the vehicle width direction may act on the roof side inner lower surface cover portion 32 via the fixed window 2 or the like. On the other hand, in the initial stage of the pole side collision, the roof side inner lower surface cover portion 32 has the protrusion 35 in contact with the edge portion 62a of the hole portion 62 of the roof side inner portion 61, so that the roof side inner bottom cover portion 32 is inward in the vehicle width direction. Displacement to is suppressed. On the other hand, when the roof side inner lower surface cover portion 32 is displaced inward in the vehicle width direction, the overlapping length between the tip portion 32a and the end edge portion 4a of the head lining 4 becomes long, so that the curtain When the shield airbag 5 starts to expand, the edge portion 4a of the head lining 4 becomes difficult to separate from the tip portion 32a. According to the present embodiment, it is possible to eliminate such a problem.

When the protrusion 35 abuts on the edge portion 62a of the hole portion 62, the roof side inner lower surface cover portion 32 has the tip portion 32a centered on the abutment portion (indicated by reference numeral P in FIG. 2). There is a risk of rotation in the ascending direction (direction indicated by the arrow Na). When such rotation occurs, the end edge portion 4a of the head lining 4 is strongly sandwiched between both the tip portion 32a and the roof side inner portion 61, and the end edge portion of the head lining 4 is formed. It becomes difficult to separate from the tip portion 32a. On the other hand, according to the present embodiment, the rotation of the roof side inner lower surface cover portion 32 in the above-mentioned direction is restricted by the action of the contact portion 36 in contact with the lower surface portion of the roof side inner portion 61. Therefore, the curtain shield airbag 5 is installed in the passenger compartment so that the end edge portion 4a of the head lining 4 does not become difficult to separate from the tip end portion 32a due to the rotation of the roof side inner lower surface cover portion 32. Can be properly deployed. In the middle and late stages of the pole side collision, the protrusion 35 and the contact portion 36 may be damaged by the influence of the load F, but in such a period, the curtain shield airbag 5 has already been deployed. It is finished.

FIG. 5 shows an embodiment of the present invention. In the figure, the same or similar elements as those in the embodiment are designated by the same reference numerals as those in the embodiment, and duplicate description will be omitted.

In the structure Aa of the vehicle equipped with the curtain shield airbag of the embodiment shown in FIG. 5, the upper surface is an inclined surface portion 37a on the pedestal portion 33 of the roof side inner lower surface cover portion 32 of the garnish 3 in addition to the protrusion 35. A convex step portion 37 is provided. The convex step portion 37 and the protrusion 35 are arranged so as to be displaced in the front-rear direction of the vehicle. The inclined surface portion 37a has an inclined shape whose height becomes lower toward the inside in the vehicle width direction, and the intermediate portion of the inclined surface portion 37a is in contact with the edge portion 62a of the hole portion 62 of the roof side inner portion 61. As a result, even if the roof side inner lower surface cover portion 32 is displaced inward in the vehicle width direction, the roof is provided by the taper guide action when the inclined surface portion 37a and the edge portion 62a of the hole portion 62 are in sliding contact with each other. The side inner lower surface cover portion 32 will be lowered.

According to the present embodiment, since the protrusion 35 is provided, the roof side inner lower surface cover portion 32 is displaced inward in the vehicle width direction when the vehicle V collides with the pole side, as in the above embodiment. This is suppressed, the overlapping length of the tip portion 32a and the end edge portion 4a of the head lining 4 becomes long, and the end edge portion 4a of the head lining 4 becomes the tip portion at the start of expansion of the curtain shield airbag 5. The problem that it becomes difficult to separate from 32a is prevented. Further, even if such an action is not properly obtained and the roof side inner lower surface cover portion 32 is displaced inward in the vehicle width direction, the taper guide action using the inclined surface portion 37a causes the lower surface of the roof side inner bottom surface. Since the cover portion 32 is lowered, the end edge portion 4a of the head lining 4 is not strongly sandwiched between the tip portion 32a of the roof side inner lower surface cover portion 32 and the roof side inner portion 61. Therefore, also in this embodiment, it is possible to appropriately deploy the curtain shield airbag 5 in the vehicle interior as in the above embodiment.

The present invention is not limited to the contents of the above-described embodiments. The specific configuration of the structure of the vehicle equipped with the curtain shield airbag according to the present invention can be variously redesigned within the scope of the present invention.

In the embodiment shown in FIG. 5, the inclined surface portion 37a is configured to be in contact with the edge portion 62a of the hole portion 62 into which the protrusion portion 35 is inserted. The hole portion 61 may be provided with a hole portion different from the hole portion 62 described above, and the inclined surface portion 37a may be brought into contact with the edge portion of the hole portion. In short, the inclined surface portion may be provided so as to be in sliding contact with a part of the roof side inner portion when the roof side inner lower surface cover portion is displaced inward in the vehicle width direction, and the roof may be provided by this sliding contact. It suffices if the side inner lower surface cover portion is lowered. The specific size of the inclined surface portion and the number of the inclined surface portions are not limited.

The garnish can be configured as a roofside inner garnish that covers only the roofside inner portion or only the roofside inner portion and its peripheral portion. The structure of the vehicle equipped with the curtain shield airbag according to the present invention is suitable, but is not limited to, when a fixed window is provided on the side of the vehicle. The curtain shield airbag can be deployed even at the time of a side collision other than the pole side collision of the vehicle, and is preferably configured to be deployed even at the time of the front collision of the vehicle.

A Structure of vehicle equipped with curtain shield airbag V Vehicle 3 Garnish 32 Roof side inner bottom cover 32a Tip (of roof side inner bottom cover)
35 Protrusion 36 Abutment 37a Inclined surface 4 Head lining 4a Edge 5 Curtain shield airbag 6 Body panel 61 Roof side inner 62 Hole 62a Edge

Claims (1)

A garnish with a roof side inner bottom cover that is arranged to cover the underside of the roof side inner of the vehicle body panel.
The head lining on which the edge portion is overlapped on the upper side of the tip portion on the inner side in the vehicle width direction of the roof side inner lower surface cover portion,
The head lining is arranged above the edge portion of the head lining, and at the time of a side collision of the vehicle, the edge portion is pressed and deformed so as to be separated from the tip portion of the roof side inner lower surface cover portion. A curtain shield airbag that can be deployed in the passenger compartment below the roof side inner bottom cover.
The structure of the vehicle equipped with a curtain shield airbag, which is equipped with
The roof side inner lower surface cover portion of the garnish is
It is restricted that the roof side inner lower surface cover portion is displaced inward in the vehicle width direction by being inserted into the hole portion provided in the roof side inner portion from below and coming into contact with the edge portion of the hole portion. With possible protrusions,
This protrusion is an inclined surface portion that is displaced in the front-rear direction of the vehicle, and
Equipped with
The inclined surface portion is in sliding contact with a part of the roof side inner portion when the portion of the roof side inner lower surface cover portion where the inclined surface portion is provided is displaced inward in the vehicle width direction. The structure of the vehicle equipped with the curtain shield airbag is characterized by having an inclined shape in which the height becomes lower toward the inside in the vehicle width direction so that the tip portion of the roof side inner lower surface cover portion can be lowered by this sliding contact. ..

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