JP2017095059A - Vehicle structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle structure that can improve occupant protection performance on the side collision of a vehicle, such as side collision with a pole, while preventing such a failure that a work of mounting a door trim to a side door becomes confusing.SOLUTION: In the vehicle structure, the door trim 2 mounted to the side door 1 of the vehicle V has an overlapping part 20 overlapping vehicle stationary members 3, 6 in vehicle side view in a side door 1 close state. The overlapping part 20 is provided with an engaging part 21 engaging with the stationary members 3, 6 so as to regulate displacement of the door trim 2 on an inner side in a vehicle width direction on the side collision of the vehicle V.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle structure capable of improving occupant protection performance in a side collision of a vehicle.

  Typically, a resin door trim (door interior panel) is attached to the surface of the vehicle side door on the vehicle interior side. In general, the door trim is attached by inserting and locking a plurality of mounting clips (locking protrusions) provided on the back side of the door trim into a plurality of holes provided in the side door. It is done.

  However, in the vehicle structure provided with the side door as described above, there is still room for improvement as described below.

  That is, as a side collision mode of the vehicle, there is a pole side collision that collides with the pole barrier PB as shown in FIG. The pole barrier PB is, for example, a utility pole, a roadside tree, a signal pole, or the like. In the case of this pole-side collision, there is a high possibility that the upper portion of the door trim 2 will come off the side door 1 as the side door 1 is deformed. In the case of a normal side collision different from the pole side collision, a load is rarely input not only in the lower part of the door trim 2 but also in a wide range extending over the upper part. Since the load is also input to the upper part, the upper part of the door trim 2 is easily detached from the side door 1. This may cause the door trim 2 to be greatly displaced inward in the vehicle width direction and strongly hit the occupant 8, which is not preferable from the viewpoint of occupant protection.

  On the other hand, there is a means for deploying the airbag 5 in the gap between the occupant 8 and the side door 1 (strictly, the door trim 2) as a occupant protection means at the time of a side collision of the vehicle. However, as described above, if the door trim 2 is detached at the time of a side collision of the vehicle, the deployment of the airbag 5 is obstructed by the door trim 2, and there is a possibility that the passenger protecting effect by the airbag 5 cannot be obtained. When the vehicle is a small vehicle, the gap between the occupant 8 and the side door 1 is narrow, so that it is more difficult to appropriately deploy the airbag 5.

  In order to solve the problems as described above, it is conceivable that, for example, the number of mounting clips is increased to make it difficult for the door trim 2 to come off the side door 1. However, if such a means is adopted, the work of attaching the door trim 2 becomes complicated, the productivity is deteriorated, and the production cost is increased.

JP 2011-189843 A

  The present invention has been conceived under the circumstances as described above, and prevents a trouble such as complicated installation of the door trim to the side door, and at the time of a vehicle side collision such as a pole side collision. An object of the present invention is to provide a vehicle structure capable of improving the passenger protection performance of the vehicle.

  In order to solve the above-described problems, the present invention takes the following technical means.

  A vehicle structure provided by the present invention is a vehicle structure that includes a side door that is configured to be able to open and close a vehicle side opening, and a door trim that is attached to a surface of the side door on the vehicle interior side. The door trim has an overlap portion that overlaps with a fixed member of the vehicle in a side view of the vehicle when the side door is closed. An engagement portion that engages with the fixing member is provided so that displacement of the door trim in the vehicle width direction inward is restricted.

According to such a configuration, the following effects can be obtained.
First, at the time of a side collision such as a pole side collision of the vehicle, the engagement portion of the door trim is engaged with the fixing member of the vehicle, and the displacement of the door trim in the vehicle width direction is restricted. For this reason, it is prevented or suppressed that a door trim remove | deviates from a side door and hits a passenger | crew strongly, and a passenger | crew's injury value can be reduced. When the EA material (energy absorbing material) is accommodated inside the door trim, an effect of preventing the EA material from shifting can be expected.
Secondly, as a means for restricting the door trim from being displaced inward in the vehicle width direction, it is not necessary to provide a large number of engaging portions on the door trim, for example, when only one engaging portion is provided. However, the displacement regulation effect of the door trim can be considerably enhanced. Further, the door trim engaging portion may be engaged with the vehicle fixing member at the time of a side collision of the vehicle, and the work process of firmly connecting the door trim engaging portion to the vehicle fixing member at the time of manufacturing the vehicle is performed. It is unnecessary. For this reason, the vehicle structure of the present invention has good productivity and can suppress an increase in production cost.

  In the present invention, preferably, the vehicle includes an airbag that develops in a gap between the door trim and an occupant during a side collision of the vehicle, and the engagement portion of the door trim is located outward in the vehicle width direction of the deployment region of the airbag. It is provided at or near the position.

  According to such a configuration, at the time of a side collision of the vehicle, a portion of the door trim located outside the airbag deployment region in the vehicle width direction is difficult to be displaced inward in the vehicle width direction, and the door trim is in the air. The expansion of the bag can be prevented. As a result, the airbag can function properly and the passenger protection performance can be further enhanced.

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

It is a schematic side view showing an example of a vehicle to which the vehicle structure of the present invention is applied. (A) is a principal part schematic plane sectional drawing of the location corresponded to the IIa-IIa line | wire of FIG. 1, (b) is a principal part expanded plane sectional view of the IIb part of (a). It is a principal part expanded plan sectional view which shows the state at the time of vehicle side collision of the part shown in FIG.2 (b). It is a side view of the vehicle interior side of the side door of the vehicle shown in FIG. It is a principal part schematic plane sectional view which shows an example of a prior art.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
5 that are the same as or similar to those in FIG. 5 described as the prior art are denoted by the same reference numerals as in FIG.
In the drawing, the arrow Fr indicates the front of the vehicle, the arrow Out indicates the outside in the vehicle width direction, and the arrow Up indicates the upper side in the vehicle height direction.

  A vehicle structure A shown in FIG. 2 includes a side door 1, a door trim 2, a center pillar 3 (B pillar) positioned between the side doors 1 and 19, a pillar trim 6, and a side airbag attached to the vehicle seat 4. Unit U is provided. The side door 1 is a right front side door of the vehicle V shown in FIG.

  In FIG. 2, the side door 1 is comprised combining the metal door outer panel 10 and the door inner panel 11, and is suitably reinforced using the reinforcement. The door trim 2 is made of resin and is attached to the surface of the side door 1 on the vehicle interior side. The means for attaching the door trim 2 to the side door 1 is the same as the means described in the background art, and a plurality of attachment clips (means indicated by reference numeral 29 in FIG. 4) provided on the back side of the door trim 2 are used. It is means for inserting and locking in a plurality of holes (not shown) provided in the door inner panel 11.

  An overlap portion 20 is provided at the rear portion of the door trim 2 so as to overlap a part of each of the center pillar 3 and the pillar trim 6 when the side door 1 is viewed from the side when the side door 1 is closed. In addition, the overlap portion 20 is provided with a protrusion-like engagement portion 21 that can engage with the center pillar 3 and the pillar trim 6 when the vehicle V is in a side collision. The center pillar 3 and the pillar trim 6 correspond to an example of a vehicle fixing member in the present invention.

  The configuration related to the engaging portion 21 will be described more specifically. First, as clearly shown in FIG. 2B, a flange portion 30 that protrudes toward the front side of the vehicle is formed at the front portion of the center pillar 3. The flange portion 30 is provided with a hole portion 31 that opens in the vehicle width direction. The flange portion 30 is a portion joined by overlapping a part of each of the plurality of panel members 32, and the strength thereof is high. The pillar trim 6 has a bent piece portion 60 positioned on the outer side in the vehicle width direction of the flange portion 30. The bent piece portion 60 penetrates in the vehicle width direction and has a hole portion 31 of the flange portion 30. Is provided with a hole 61 facing the.

  The engaging portion 21 of the door trim 2 has a protruding shape that protrudes inward in the vehicle width direction so as to be able to enter the holes 61 and 31 in series. For example, as shown in FIG. 4, the engaging portion 21 has a shape extending in the vertical direction. The holes 61 and 31 also have shapes corresponding thereto, but their specific shapes are not limited. The engaging portion 21 is provided on the rear upper portion of the door trim 2 or in the vicinity thereof. In FIG. 4, reference numeral 18 denotes a lock for engaging with a striker (not shown) on the center pillar 3 side. The engaging portion 21 is arranged higher than the lock 18.

In the present embodiment, the engaging part 21 does not enter the hole parts 61 and 31 and is opposed to the hole parts 61 and 31 at the normal time when the side collision of the vehicle V does not occur. According to such a configuration, each time the side door 1 is opened and closed, it is easy to set so that the engaging portion 21 does not interfere with the pillar trim 6 and the like.
On the other hand, when a side collision of the vehicle V occurs and the rear portion of the door trim 2 is displaced inward in the vehicle width direction, the engaging portion 21 enters the hole portions 61 and 31, as shown in FIG. The flange 3 of the pillar 3 and the bent piece 60 of the pillar trim 6 are engaged. Due to this engagement, displacement of the peripheral portion of the engaging portion 21, that is, the rear upper portion of the door trim 2, inward in the vehicle width direction when the vehicle collides is restricted. Since FIG. 3 shows the side collision of the vehicle V, the door trim 2 and the side door 1 are greatly deformed.

The side airbag unit U is disposed, for example, in a seat back 40 of the vehicle seat 4 and includes a folded airbag 5 and an inflator 50. The airbag 5 is configured to expand in the gap between the occupant 8 and the door trim 2 when the vehicle V collides. In the pole side collision, since the load input to the shoulder and chest of the occupant 8 is particularly large, it is preferably configured to be deployed in a region where such a part can be appropriately protected. On the other hand, the engaging portion 21 of the door trim 2 is provided at the position described with reference to FIG. 4, but in the relationship with the airbag 5, an outer position in the vehicle width direction of the deployment region of the airbag 5, Alternatively, the engaging portion 21 is positioned in the vicinity thereof.

  Next, the operation of the vehicle structure A will be described.

  First, when a side collision of the pole as described in the background art occurs in the vehicle V and the side door 1 collides with the pole barrier, the side door 1 is pushed inward in the vehicle width direction and deformed. Here, the intermediate position in the vertical height direction on the rear side of the side door 1 is firmly connected to the center pillar 3 via the lock 18, and this portion is prevented from being displaced inward in the vehicle width direction. Therefore, other portions of the side door 1 are easily deformed greatly inward in the vehicle width direction. When no means is taken, the door trim 2 is likely to be detached from the side door 1 due to the above-described deformation, and in particular, the rear upper part of the door trim 2 is most likely to be detached.

  On the other hand, in the vehicle structure A of the present embodiment, if there is a pole side collision as described above, the engaging portion 21 of the door trim 2 is engaged with the center pillar 3 and the pillar trim 6 as described with reference to FIG. Match. For this reason, the rear upper part of the door trim 2 is restricted from being displaced inward in the vehicle width direction. Therefore, the door trim 2 is difficult to come off from the side door 1.

  On the other hand, when the vehicle V collides with the pole, the airbag 5 is deployed. However, if the door trim 2 is not easily detached from the side door 1 as described above, the door trim 2 obstructs the deployment of the airbag 5. Can be resolved. Therefore, the airbag 5 can be appropriately deployed in the gap between the door trim 2 and the occupant 8, and the injury value of the occupant 8 can be reduced. In addition, in the middle and late stage of the vehicle V pole side collision, since the deformation amount of the side door 1 further increases, the engagement portion 21 of the door trim 2 or its peripheral portion is broken, and the door trim 2 is in the vehicle width direction. There is a risk of significant displacement. However, since the deployment operation of the airbag 5 is performed at the initial stage of the pole-side collision before that, the above-described breakage or the like does not particularly hinder. The action of restricting the displacement of the door trim 2 by engaging the engaging portion 21 of the door trim 2 with the center pillar 3 or the pillar trim 6 may be obtained as a temporary action until the airbag 5 is deployed.

  Unlike the present embodiment, when the side airbag unit U is not attached to the vehicle V, the door trim 2 removed from the side door 1 may directly hit the occupant 8 in the middle and late stages of the pole side collision. obtain. However, if the displacement of the door trim 2 is restricted as described above at the initial stage of the pole side collision, an effect of preventing the door trim 2 from strongly hitting the occupant 8 can be obtained as compared with the case where the displacement is not so. Therefore, even when the side airbag unit U is not attached, an injury value reduction effect can be obtained.

  According to the vehicle structure A of the present embodiment, it is not necessary to provide a large number of mounting clips 29 for the purpose of preventing the door trim 2 from coming off the side door 1. Also, it is not necessary to provide a large number of engaging portions 21 of the door trim 2. For example, even if only one engaging portion 21 is provided, it is possible to appropriately obtain an injury value reducing effect. Therefore, the vehicle structure A of the present embodiment has good productivity and can reduce the production cost.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the vehicle structure according to the present invention can be modified in various ways within the intended scope of the present invention.

In the above-mentioned embodiment, although the example which applied this invention to the right front side door of a vehicle was demonstrated, it is not limited to this, This invention is applicable also to another side door. Therefore, the engagement target of the engagement portion of the door trim is not limited to the center pillar or the pillar trim. Of the constituent members of the vehicle, any member provided in a fixed state can be an engagement target of the engagement portion of the door trim. In the above-described embodiment, the engaging portion is engaged with both the center pillar and the pillar trim, but it is needless to say that the structure may be such that only the center pillar is engaged.
The engagement portion of the door trim is only required to be able to engage with the fixed member of the vehicle so that the displacement of the door trim inward in the vehicle width direction is restricted at the time of a side collision of the vehicle. Here, as is understood from the above-described embodiment, the engagement portion of the door trim may be released from the engagement state after the airbag is deployed, and the vehicle side collision does not occur normally. Sometimes, it may be in a state where it is not engaged with a fixed member of the vehicle.
For example, when the convex portion is formed on the fixed member side of the vehicle, the engaging portion can be formed as a portion having a hole portion into which the convex portion enters.

  The airbag is not limited to a side airbag that is deployed from the position of the vehicle seat, and is, for example, a ceiling airbag that is deployed downward from the position of the roof panel, or an airbag that is deployed upward from the floor. It is also possible. The point is that it can be deployed in the gap between the door trim of the side door and the occupant.

A Vehicle structure 1 Side door 2 Door trim 20 Overlap portion 21 Engagement portion 3 Center pillar (vehicle fixing member)
6 Pillar trim (vehicle fixing member)
5 Airbag 8 Crew

Claims (2)

A side door set to be able to open and close the vehicle side opening,
A door trim attached to the interior side surface of the side door;
A vehicle structure comprising:
The door trim has an overlap portion that overlaps with a fixed member of the vehicle in a side view of the vehicle with the side door closed.
The overlap portion is provided with an engagement portion that engages with the fixing member so that the displacement of the door trim in the vehicle width direction is restricted in the event of a side collision of the vehicle. , Vehicle structure. The vehicle structure according to claim 1,
In the event of a side collision of the vehicle, the airbag is deployed in the gap between the door trim and the occupant,
The engagement portion of the door trim is a vehicle structure provided at an outer position in the vehicle width direction of the airbag deployment region or in the vicinity thereof.

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