JP2023006038A - vehicle door trim - Google Patents

Abstract

To provide a vehicle door trim of which scattering due to breakage can be prevented even if a large load is applied thereto from above by expansion of a curtain shield air bag.SOLUTION: A vehicle door trim comprises: a trim body part 50 which constitutes a design surface of a door trim 10; an upper end coating part 52A which extends to an outdoor side from an upper end part of the trim body part 50, and covers an upper part of an indoor side portion in a door panel 40; and front and rear ribs 62 which are set up toward the outdoor side from at least one rear face of the trim body part 50 and the upper end coating part 52A, and are extended in a cross direction of a vehicle. The front and rear ribs 62 extend to a position vertically superposed on the door panel 40 in the state that the door trim 10 is attached to the door panel 40, and a clearance S1 (S2) in a vertical direction is formed over the entire length of the front and rear ribs 62 between the front and rear ribs 62 and the upper end coating part 52A.SELECTED DRAWING: Figure 5

Description

The present invention relates to a vehicle door trim.

BACKGROUND ART A vehicle may be equipped with a curtain shield airbag as described in Japanese Patent Application Laid-Open No. 2002-200311 for the purpose of protecting passengers in the event of a side collision. The curtain shield airbag is housed in the vehicle width direction end portion of the ceiling above the side door of the vehicle while extending in the front-rear direction. The curtain shield airbag is a bag-like member that is inflated by an inflator and deployed downward along the inner surface of the door in the event of a side collision or the like.

JP 2021-46027 A

As described above, since the curtain shield airbag is deployed downward along the inner surface of the door, the deployed airbag may come into contact with the upper edge of the door trim. Since the curtain shield airbag deploys under extremely strong pressure, there is a risk that the upper end of the door trim that the deploying airbag collides with will be damaged and scattered.

The present invention has been made in view of such circumstances, and is capable of preventing scattering due to breakage even when a large load is applied from above due to deployment of a curtain shield airbag. The task is to provide

In order to solve the above problems, the vehicle door trim of the present invention includes:
A vehicle door trim attached to the interior side of a door panel,
a trim main body forming a design surface of the vehicle door trim;
an upper end covering portion extending from the upper end portion of the trim main body to the outside of the vehicle interior and covering the upper portion of the door panel inside the vehicle interior;
front and rear ribs erected from the rear surface of at least one of the trim main body and the upper end covering portion toward the outside of the vehicle and extending in the front and rear direction of the vehicle;
with
The front and rear ribs extend to a position overlapping the door panel in the vertical direction when the vehicle door trim is attached to the door panel,
A vertical gap is formed between the front and rear ribs and the upper end covering portion over the entire length of the front and rear ribs.

In conventional vehicle door trims, for example, a plurality of ribs may be erected downward on the back surface of the upper end covering portion. The door trim is guided to the installation position by. In other words, when the door trim having this configuration is attached to the door panel, the upper end covering portion and the rib on the back surface thereof are positioned above the door panel. Here, a case where a curtain shield airbag (hereinafter sometimes simply referred to as an "airbag") deploys against the conventional door trim and a load is applied from the upper edge of the door trim by the airbag. think. In a conventional door trim, when a large load is applied from the upper edge, the portion where the rib exists can hardly be deformed in the vertical direction because the rib contacts the upper edge of the door panel, whereas the portion where the rib does not exist. is considered to allow a large deformation in the vertical direction. As a result, there is a risk of breakage and scattering, mainly in areas where ribs do not exist (between ribs, etc.) in the upper edge of the door trim.

On the other hand, in the vehicle door trim having this configuration, a vertical gap is formed between the front and rear ribs and the upper end covering portion over the entire length of the front and rear ribs, so that the upper end covering portion bends with respect to the front and rear ribs. is allowed. That is, even if the front and rear ribs of the door trim themselves or the portions provided on the lower side of the front and rear ribs come into contact with the upper ends of the interior side portions of the door panels, the upper end covering portion does not bend with respect to the front and rear ribs. is allowed. Alternatively, since the front and rear ribs extend toward the outside of the passenger compartment, the leading ends of the front and rear ribs contact the door panel from above, thereby allowing the front and rear ribs to flex. Therefore, the door trim having this configuration can absorb the load from above due to the airbag by bending the upper end covering portion and the front and rear ribs. In addition, since the vertical gap is formed over the entire length of the front and rear ribs, the load from above can be dispersed at the upper edge of the door trim. According to the door trim with this configuration, it is possible to avoid a situation in which the door trim is damaged and small pieces are scattered due to the local concentration of the load, unlike the door trim with the conventional configuration.

In the above structure, a plurality of upper ribs are provided upright on the rear surface of at least one of the trim body portion and the upper end covering portion above the front and rear ribs, and between the lower edges of the upper ribs and the upper surfaces of the front and rear ribs. It is possible to adopt a configuration in which a gap is formed in the .

The door trim having this configuration can absorb a load from above while ensuring the rigidity of the upper end covering portion, and can effectively avoid breakage and scattering of the door trim.

In the above configuration, a plurality of lower ribs are provided upright on lower surfaces of the front and rear ribs and extend to a position overlapping the door panel in the vertical direction, and the lower ribs are positioned relative to the upper ribs. can be arranged at positions shifted in the front-rear direction.

In the door trim of this configuration, due to the presence of the plurality of lower ribs, gaps are also formed between the front and rear ribs and the door panel at the locations where the upper ribs exist. Since the portion including the front and rear ribs and the upper end covering portion is allowed to bend downward, the load from above can be effectively absorbed. Since the upper rib does not exist where the lower rib exists, the upper end covering portion is allowed to flex with respect to the front and rear ribs, and the load from above can be effectively absorbed.

The said structure WHEREIN: The said upper side rib and the said lower side rib can be set as the structure arrange|positioned alternately in the front-back direction.

In the door trim with this configuration, a large gap is formed between the front and rear ribs and the door panel where the upper rib exists, and a large gap is formed between the upper end covering portion and the front and rear rib where the lower rib exists. A gap is formed. By arranging them alternately, the load from above can be effectively dispersed and the load from above can be absorbed more effectively.

In the above configuration, the lower rib may have a shape in which the outer edge on the outside of the passenger compartment is inclined toward the inner side of the passenger compartment as it goes downward.

When the door trim having this configuration is attached to the door panel, the door trim itself is guided upward when the inclined outer edge of the lower rib comes into contact with the upper end of the door panel. In other words, in the door trim of this configuration, the lower rib functions as a guide rib when attached to the door panel.

In the above configuration, the vehicle door trim has an upwardly inclined portion in which a portion of the upper edge on the rear side of the vehicle is inclined upwardly toward the rear, and the front and rear ribs are arranged with respect to the upwardly inclined portion. It can be set as the structure formed.

Since the door trim with this configuration has a shape in which the rear portion approaches the ceiling, the load of the airbag is likely to be applied. Therefore, the door trim having the above-described front and rear ribs is suitable for the door trim having such a shape.

The said structure WHEREIN: The said front-back rib can be set as the structure formed along the upper edge of the said vehicle door trim.

In the door trim with this structure, the distance between the upper edge and the front and rear ribs is substantially uniform, and it is believed that the load from above can be effectively dispersed.

In the above configuration, a plurality of upper ribs are provided upright on the rear surface of at least one of the trim main body portion and the upper end covering portion above the front and rear ribs; a plurality of lower ribs extending to positions overlapping each other in the vertical direction on the interior side of the vehicle, wherein the upper rib and the lower rib are formed in a plate shape vertically erected with respect to the front and rear ribs; It can be configured as

The door trim of this configuration has an upward sloping portion and front and rear ribs formed along the upward sloping portion, and has an upper rib and a lower rib, and the upper rib and the lower rib. are perpendicular to the front and rear ribs. In the case of a door trim having an upward sloping portion, it is considered that the component of the load received by the entire upward sloping portion in the direction perpendicular to the upper edge of the door trim has a large effect on damage, and the upper rib extending in the same direction and lower ribs are believed to effectively disperse the components.

According to the present invention, it is possible to provide a vehicle door trim that can prevent scattering due to damage even when a large load is applied from above due to deployment of the curtain shield airbag.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the inside of a vehicle interior in which a vehicle door trim that is an embodiment of the present invention is employed; The figure which shows the state which the curtain shield airbag shown in FIG. 1 expanded. FIG. 2 is a rear view of the vehicle door trim according to the present embodiment; FIG. 2 is an enlarged view showing a main part of the vehicle door trim according to the present embodiment; Sectional view of the vehicle door trim of the present embodiment (cross section AA in FIG. 3) FIG. 3 is a cross-sectional view of the vehicle door trim of the present embodiment (cross-section taken along line BB in FIG. 3); Sectional view of the vehicle door trim of the present embodiment (CC section in FIG. 3)

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention. It should be noted that the present invention is not limited to the following examples, and can be implemented in various modes with various modifications and improvements based on the knowledge of those skilled in the art.

A vehicle door trim 10 (hereinafter sometimes simply referred to as "door trim 10"), which is an embodiment of the present invention, is employed in a vehicle 12, a part of which is shown inside the vehicle compartment in FIG. This vehicle 12 is a vehicle having a front seat 13 and a rear seat 14, and a front side door 15 and a rear side door 16 are provided corresponding to each of them. The door trim 10 of this embodiment is employed as a door trim for a rear side door 16. As shown in FIG. In addition, the vehicle 12 is provided with curtain shield airbags 18 above the front side door 15 and the rear side door 16, and these front side doors are provided at the ends (roof side) of the ceiling of the vehicle 12 in the vehicle width direction. 15 and the upper edge of the rear side door 16 are accommodated.

The curtain shield airbag 18 (hereinafter sometimes simply referred to as the "airbag 18") will be briefly described, but it has a substantially rectangular shape elongated in the longitudinal direction of the vehicle and is formed by weaving fibers. It mainly consists of a bag body 20 (see FIG. 2), and is normally stored in the roof side in a folded state so as to elongate in the longitudinal direction of the vehicle. The airbag 18 is activated when the vehicle 12 receives an external impact greater than or equal to a predetermined value. Specifically, when the gas is supplied from the inflator, as shown in FIG. ) 22 while protecting the occupant.

As described above, the bag body 20 of the airbag 18 deploys downward along the side windows 15A, 16A, so that the door trim 15B and the rear side of the front side door 15 located below the side windows 15A, 16A. It contacts the upper end of the door trim 10 of this embodiment, which is the door trim of the door 16 . Since the airbag 18 inflates and deploys the bag body 20 with an extremely strong pressure by the inflator, the expanding bag body 20 may contact the upper ends of the door trims 15B and 10 and apply a large load.

In this embodiment, as shown in FIGS. 1 and 2, the door trim 10 of the rear side door 16 has a shape in which the upper edge rises upward toward the rear of the vehicle, and lowers toward the rear of the vehicle ceiling. It has a curved shape, and the distance from the airbag 18 becomes shorter toward the rear side. That is, a larger load is likely to be applied to the door trim 10 of the rear side door 16 than to the door trim 15B of the front side door 15, and moreover, a larger load is likely to be applied to the door trim 10 of the rear side door 16 toward the rear.

The door trim 10 of this embodiment is configured to cope with a large load applied by the expanded bag body 20 when the airbag 18 is activated. As shown in FIG. 3, the door trim 10 is mainly composed of a trim board 34 to which a main board member 30 and an ornament board member 32 are assembled. An armrest or the like is provided. The door trim 10 is attached to the interior side of the door panel 40 (see FIGS. 5 to 7), and the trim board 34 has a surface facing the interior of the vehicle and constitutes the design surface of the door trim 10. It has a main body portion 50 and a peripheral flange portion 52 extending from the peripheral edge of the trim main body portion 50 toward the outside of the passenger compartment. As shown in FIG. 5, the upper edge portion of the peripheral flange portion 52 extends from the upper end portion of the trim main body portion 50 to the outside of the vehicle interior, and covers the upper portion of the door panel 40 on the inside of the vehicle interior. It is The upper end covering portion 52A has a curved shape that protrudes toward the outside of the vehicle as it goes upward.

In addition, as described above, the door trim 10 includes the upward slope portion 60 that slopes upward toward the rear at the portion of the upper edge on the rear side of the vehicle. The present door trim 10 is characterized by the ascending inclined portion 60 . As shown in FIGS. 4 and 5, the rising slope portion 60 of the door trim 10 is provided on the trim board 34 extending generally in the longitudinal direction of the vehicle while standing from the rear surface of the trim main body portion 50 toward the outside of the vehicle. Plate-shaped front and rear ribs 62 are provided extending along the edge (upper edge covering portion 52A). As shown in FIG. 5 , the front and rear ribs 62 extend to a position overlapping the door panel 40 in the vertical direction when the door trim 10 is attached to the door panel 40 . In other words, the upper end of the door panel 40 is positioned below the tip of the front and rear ribs 62 . A vertical gap S1 is formed between the front and rear ribs 62 and the upper end covering portion 52A.

As shown in FIGS. 4 and 6, a plurality of plate-like first vertical ribs 64 (three in this embodiment) extending generally vertically across the front and rear ribs 62 are spaced apart in the front and rear direction. book) is established. The first vertical rib 64 has a substantially constant height (the dimension in the direction perpendicular to the rear surface of the trim board 34), and extends from the vicinity of the outer end of the upper end covering portion 52A to the lower side of the front and rear ribs 62. It is a thing. A portion 64A of the first upper and lower ribs 64, which stands on the upper end covering portion 52A above the front and rear ribs 62, functions as an upper rib in this embodiment. Since the gap S2 is formed between the lower edge of the upper rib 64A and the upper surface of the front and rear rib 62, the door trim 10 of the present embodiment is formed between the front and rear rib 62 and the upper end covering portion 52A. , a vertical gap is formed over the entire length of the front and rear ribs 62 .

Further, as shown in FIGS. 4 and 7, a plate-shaped second vertical rib 66 extending generally downward from the lower surface of the front-rear rib 62 is spaced in the front-rear direction at a position that does not overlap the first vertical rib 64 . A plurality of (four in this embodiment) are erected. Also, the first vertical rib 64 is arranged in the middle of the second vertical rib 66, and the first vertical rib 64 and the second vertical rib 66 are arranged alternately in the front-rear direction. In other words, the upper end portion 66A of the second vertical rib 66 functions as a lower rib that stands upright on the lower surface of the front and rear ribs 62 and extends to a position overlapping the door panel 40 in the vertical direction. The lower rib 66A has a shape that is inclined toward the interior of the vehicle as the outer edge of the exterior of the vehicle extends downward, and functions as a guide when the door trim 10 is attached to the door panel 40. - 特許庁Specifically, when the door trim 10 is attached to the door panel 40 and the door trim 10 is brought close to the door panel 40 from the interior side of the vehicle, the exterior portion of the lower rib 66A contacts the door panel 40. Then, the door trim 10 is moved upward by the inclined portion of the lower rib 66A and is guided to the mounting position with respect to the door panel 40. As shown in FIG.

The vehicle door trim 10 of the present embodiment constructed as described above includes a trim main body portion 50 forming a design surface of the main door trim 10, and a door panel 40 extending from the upper end portion of the trim main body portion 50 to the outside of the passenger compartment. A top covering portion 52A that covers the upper part of the interior side, and a front and rear portion that is erected toward the outside of the vehicle from the rear surface of at least one of the trim body portion 50 and the top covering portion 52A and that extends in the front-rear direction of the vehicle. The front and rear ribs 62 extend to a position overlapping the door panel 40 in the vertical direction when the door trim 10 is attached to the door panel 40. 52A, vertical gaps S1 and S2 are formed over the entire length of the front and rear ribs 62 .

In the door trim 10, a vertical gap is formed between the front and rear ribs 62 and the upper end covering portion 52A over the entire length of the front and rear ribs 62, so that the upper end covering portion 52A bends with respect to the front and rear ribs 62. is allowed. That is, even if the lower rib 66A abuts the upper end of the door panel 40 on the inner side of the vehicle interior, the upper end covering portion 52A is allowed to bend with respect to the front and rear ribs 62 . Alternatively, since the front and rear ribs 62 extend toward the outside of the passenger compartment, the leading ends of the front and rear ribs 62 abut against the door panel 40 from above, thereby allowing the front and rear ribs 62 themselves to flex. Therefore, the door trim 10 can absorb the load from above due to the airbag 18 by bending the upper end covering portion 52A and the front and rear ribs 62 . In addition, since the vertical gaps S1 and S2 are formed over the entire length of the front and rear ribs 62, the load from above is dispersed in the upper end covering portion 52A without being locally concentrated. Therefore, according to the present door trim 10, the load is not locally concentrated unlike the door trim of the conventional structure, and it is possible to avoid a situation in which the door trim is damaged and small pieces are scattered.

Further, the door trim 10 is provided with a plurality of upper ribs 64A erected on the rear surface of the upper end covering portion 52A above the front and rear ribs 62. Between the lower edges of the upper ribs 64A and the upper surfaces of the front and rear ribs 62, a gap S2 is formed. is formed. With this configuration, the door trim 10 can absorb the load from above while ensuring the rigidity of the upper end covering portion 52A, and can effectively avoid breakage.

Further, the door trim 10 is provided with a plurality of lower ribs 66A that stand upright on the lower surface of the front and rear ribs 62 and extend to a position overlapping the door panel in the vertical direction. It is arranged at a position shifted in the front-rear direction with respect to the rib 64A. With this configuration, the present door trim 10 has a plurality of lower ribs 66A, and a gap S3 is also formed between the front and rear ribs 62 and the door panel 40 at the locations where the upper ribs 64A are present. , the portion including the front and rear ribs 62 and the upper end covering portion 52A is allowed to bend downward, so that the load from above can be effectively absorbed. Since the upper rib 64A does not exist where the lower rib 66A exists, the upper end covering portion 52A is allowed to flex with respect to the front and rear ribs 62, and the load from above can be effectively absorbed.

Further, in the door trim 10, the upper ribs 64A and the lower ribs 66A are alternately arranged in the front-rear direction. With this configuration, in the door trim 10, a large gap is formed between the front and rear ribs 62 and the door panel 40 where the upper ribs 64A are present, and the upper end covering portions 52A are formed where the lower ribs 66A are present. and the front and rear ribs 62, a large gap is formed. By arranging them alternately, the load from above can be effectively dispersed and the load from above can be absorbed more effectively.

<Other embodiments>
In the door trim 10 of the above embodiment, the upper rib 64A is provided above the front and rear ribs 62, and the lower rib 66A is provided below the front and rear ribs 62. However, the lower rib 66A is not provided. Further, the configuration may be such that both the lower rib 66A and the upper rib 64A are not provided. Further, the door trim 10 of the above-described embodiment has the rising slope portion 60 that slopes upward as the vehicle rear side portion of the upper edge goes rearward. The configuration according to the invention can also be employed if the edges extend generally horizontally.

DESCRIPTION OF SYMBOLS 10... Vehicle door trim, 16... Rear side door, 18... Curtain shield airbag, 40... Door panel, 50... Trim body part, 52... Peripheral edge flange part, 52A... Upper end covering part, 60... Rising inclined part, 62... Front and rear ribs , 64... First upper and lower rib, 64A... Upper rib, 66... Second upper and lower rib, 66A... Lower rib

Claims (8)

A vehicle door trim attached to the interior side of a door panel,
a trim main body forming a design surface of the vehicle door trim;
an upper end covering portion extending from the upper end portion of the trim main body to the outside of the vehicle interior and covering the upper portion of the door panel inside the vehicle interior;
front and rear ribs erected from the rear surface of at least one of the trim main body portion and the upper end covering portion toward the outside of the vehicle and extending in the front-rear direction of the vehicle;
with
The front and rear ribs extend to a position overlapping the door panel in the vertical direction when the vehicle door trim is attached to the door panel,
A vehicle door trim, wherein a vertical gap is formed between the front and rear ribs and the upper end covering portion over the entire length of the front and rear ribs. A plurality of upper ribs are provided upright on the rear surface of at least one of the trim body portion and the upper end covering portion above the front and rear ribs, and a gap is formed between the lower edge of the upper rib and the upper surface of the front and rear ribs. 2. The vehicle door trim according to claim 1. a plurality of lower ribs are provided upright on lower surfaces of the front and rear ribs and extend to a position overlapping the door panel in the vertical direction,
3. The vehicle door trim according to claim 2, wherein the lower rib is arranged at a position shifted in the front-rear direction with respect to the upper rib. 4. The vehicle door trim according to claim 3, wherein the upper ribs and the lower ribs are alternately arranged in the front-rear direction. 5. The vehicle door trim according to claim 3, wherein the lower rib has a shape that is inclined toward the interior of the vehicle as the outer edge of the exterior of the vehicle extends downward. The vehicle door trim has an upwardly sloping portion that slopes upward as it goes rearward at a portion of the upper edge on the rear side of the vehicle,
The vehicle door trim according to any one of claims 1 to 5, wherein the front and rear ribs are formed with respect to the upward slope portion. 7. The vehicle door trim according to claim 6, wherein the front and rear ribs are formed along an upper edge of the vehicle door trim. a plurality of upper ribs standing on the rear surface of at least one of the trim main body portion and the upper end covering portion above the front and rear ribs;
a plurality of lower ribs erected on lower surfaces of the front and rear ribs and extending to a position overlapping the door panel in the vertical direction;
8. The vehicle door trim according to claim 7, wherein the upper rib and the lower rib are formed in a plate-like shape and stand vertically with respect to the front and rear ribs.

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