JP2021193004A - Door trim structure of vehicle - Google Patents

Abstract

To provide a door trim structure of a vehicle which enhances impact absorption property by bending an ornament panel at vehicle side collision.SOLUTION: In a door trim structure of a vehicle in which an ornament panel 2 is fixed to a door trim provided on an in-vehicle side of a door of the vehicle, the ornament panel 2 is configured so that a vehicle longitudinal direction end part is fixed to the door trim and at the same time a plurality of upper ribs 21 extending in a vertical direction are disposed side by side at intervals in the vehicle longitudinal direction on the ornament panel 2, and a first rib 21a positioned in the vehicle longitudinal direction intermediate part of the ornament panel 2 among the plurality of upper ribs 21 is set so that strength becomes lower with respect to a second rib 21b provided in a vehicle frontward direction and a vehicle rearward direction of the first rib 21a in the ornament panel 2 .SELECTED DRAWING: Figure 4

Description

The present invention relates to the structure of an interior material provided in an inner panel of a vehicle.

Generally, a door trim is attached as an interior material to an inner panel constituting the inside of a vehicle door. Door trims are often made of resin.

Furthermore, in order to improve the appearance, an increasing number of vehicles are equipped with decorative plates, so-called ornament panels, as part of the door trim. For example, in the vehicle disclosed in Patent Document 1, the ornament panel (ornament) is also made of resin and is arranged on the upper rear side of the side door and on the side of the occupant seated in the driver's seat or the passenger seat. ..

Japanese Unexamined Patent Publication No. 2008-132825

By the way, at the time of a vehicle side collision, when an obstacle such as a utility pole pushes and bends the door from the outside of the door toward the inside of the vehicle, the outer panel and inner panel of the door formed of the sheet metal member bend and absorb the impact. It has a structure to do. At the time of a vehicle side collision, the door trim is bent according to the bending of the inner panel.

However, ornament panels are often stronger than other parts of the door trim because they are often subject to force by the shoulders and chest when the occupant leans to the outside of the vehicle. Further, the ornament panel is fixed by a relatively small number of bolts or the like so that it can be easily replaced.

Therefore, there is a possibility that a part of the fixed portion of the ornament panel will come off at the time of a vehicle side collision, the ornament panel will not bend together with the inner panel, and the impact absorption at the door will decrease. Further, when a part of the fixed portion of the ornament panel is detached, the detached portion may protrude to the inside of the vehicle.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a vehicle door trim structure that bends an ornament panel at the time of a vehicle side collision to improve shock absorption. be.

In order to achieve the above object, the vehicle door trim structure of the present invention is a vehicle door trim structure in which an interior material is fixed to a door trim provided inside the vehicle door, and the interior material is at least a vehicle. The front-rear end is fixed to the door trim, and a plurality of ribs extending in the vertical direction are arranged side by side at intervals in the vehicle front-rear direction on the interior material. The strength of the first rib located in the middle portion in the front-rear direction is set to be lower than that of the second rib provided in the front or rear of the vehicle in the middle portion in the front-rear direction of the interior material. It is a feature.

As a result, the strength of the interior material in the vertical direction can be ensured by the ribs, but the strength of the first rib located in the middle portion of the interior material in the vehicle front-rear direction is the strength of the second rib located in front of or behind the rib. Since the strength is set lower, the strength of the interior material in the middle portion in the front-rear direction of the vehicle can be reduced. Further, since at least the end portion of the interior material in the front-rear direction of the vehicle is fixed to the door trim, the interior material can be bent in the front-rear direction of the vehicle together with the bending of the door trim at the time of collision on the vehicle side. As a result, it is possible to prevent the end portion of the interior material from coming off and protruding to the inside of the vehicle when the vehicle collides with the side of the vehicle, and the interior material is bent together with other members of the door to improve shock absorption.

Preferably, the interior material is arranged at a position where the vehicle front-rear intermediate portion faces the shoulder or chest of an occupant seated in a seat adjacent to the side of the door trim.

As a result, it is possible to prevent the interior material from protruding toward the shoulder or chest of the occupant, and to improve the impact absorption of the door in the vicinity of the shoulder or chest of the occupant.

Preferably, the first rib is formed to have a lower protrusion height than the second rib.

Thereby, the strength of the first rib can be set lower than the strength of the second rib. Therefore, the strength of the intermediate portion of the interior material in the vehicle front-rear direction can be set lower than the strength of the portion in front of or behind the interior material.

Preferably, the ribs may not be arranged in the vehicle front-rear direction intermediate portion of the interior material.

Thereby, the strength of the intermediate portion of the interior material in the vehicle front-rear direction can be set lower than the strength of the portion in front of or behind the interior material.

It is preferable to have a groove portion extending in the vertical direction in the middle portion of the interior material in the front-rear direction of the vehicle.

As a result, the interior material can be easily bent in the front-rear direction at the time of the vehicle side collision at the intermediate portion of the interior material in the vehicle front-rear direction.

Preferably, the groove is provided between the plurality of ribs adjacent to each other in the front-rear direction of the vehicle.

This makes it possible to easily arrange the groove portion in the vehicle front-rear direction intermediate portion of the interior material having ribs.

Preferably, the upper end portion of the interior material has a flange portion that bends outward in the vehicle width direction, and the rib may support the inner wall surface of the flange portion.

As a result, even if an occupant puts his / her arm on the upper surface of the collar portion and a force acts downward, the strength of the interior material can be ensured.

Preferably, the groove portion is formed so as to extend to the end portion of the flange portion, and the end portion of the collar portion may have a notch portion formed by expanding the width of the groove portion.

As a result, the interior material can be more easily bent in the front-rear direction along the groove portion at the time of a vehicle side collision.

According to the door trim structure of the vehicle of the present invention, it is possible to prevent the interior material from protruding to the inside of the vehicle at the time of a vehicle side collision, and to bend the interior material together with other members of the door to improve shock absorption. can.

It is a schematic structural drawing which shows the position of the ornament panel in the left front door of the vehicle which adopted the door trim structure of the embodiment of this invention. It is a vertical sectional view of the upper part of the left front door of this embodiment. It is a structural drawing which shows the shape of the door trim including the ornament panel of this embodiment. It is a rear view which shows the shape of the ornament panel of this embodiment. It is a vertical sectional view which shows the shape of the rib in the ornament panel of this embodiment.

Hereinafter, embodiments of a vehicle structure embodying the present invention will be described.

FIG. 1 is a schematic structural diagram showing the position of the ornament panel 2 (interior material) in the left front door 1 (door) of the vehicle adopting the door trim structure of the embodiment of the present invention. FIG. 2 is a vertical sectional view of the upper part of the left front door. FIG. 2 is a cross-sectional view taken along the line AA of the left front door 1 shown in FIG. FIG. 3 is a structural diagram showing the shape of the door trim 3 including the ornament panel 2 of the present embodiment. FIG. 3 is a view of the door trim 3 of the left front door 1 including the ornament panel 2 as viewed from the outside of the vehicle (outside in the vehicle width direction) to the inside of the vehicle (inside in the vehicle width direction). FIG. 4 is a rear view showing the shape of the ornament panel 2 of the present embodiment. FIG. 4 is a view of the ornament panel 2 viewed from the outside of the vehicle toward the inside of the vehicle. FIG. 5 is a vertical sectional view showing the shape of the rib 21 in the ornament panel 2 of the present embodiment. FIG. 5 is a cross-sectional view taken along the line BB of the ornament panel 2 shown in FIG.

In the following description, the vehicle direction in the state when the left front door 1 door is closed will be described.

As shown in FIG. 1, the door trim structure of the present embodiment is adopted for the left front door 1 adjacent to the left side of the vehicle seat 5.

As shown in FIG. 2, the left front door 1 adopting the door trim structure of the present embodiment is formed of a sheet metal member and has an outer panel 6 constituting an outer wall surface and an inner arranged at intervals from the outer panel 6 to the inside of the vehicle. It has a panel 7. As shown in FIGS. 1 to 3, a door trim 3 formed of, for example, a thin resin plate member is further provided inside the inner panel 7 of the vehicle. The door trim 3 is arranged so as to cover substantially the entire inside of the vehicle of the left front door 1.

An ornament panel 2 is provided on the upper portion of the door trim 3 on the rear side of the vehicle. The ornament panel 2 is, for example, a decorative plate made of resin and thicker than other parts of the door trim 3, and leather is attached to the inner surface of the vehicle by sandwiching urethane or the like to improve the appearance and feel. ing. The ornament panel 2 is positioned so as to face the shoulder of the occupant M seated in the seat 5 adjacent to the side of the left front door 1.

The seat 5 of the present embodiment includes a side airbag 10 that expands forward from the side portion of the seat back 9 on the left front door 1 side. The side airbag 10 is deployed mainly between the shoulder, chest, abdomen, and waist of the occupant M and the left front door 1.

As shown in FIGS. 2, 4 and 5, the upper flange portion of the ornament panel 2 is bent outward in the vehicle width direction and extends toward the entrance 13 of the window glass 8 of the left front door 1. It has 12 (flange). The upper flange portion 12 is arranged so as to cover the inside of the vehicle from the entrance 13 of the window glass 8 located above the left front door 1.

The ornament panel 2 is provided with a horizontal rib 20 in order to secure the strength when the occupant M pushes from the inside of the vehicle during normal vehicle use. The lateral rib 20 is a portion formed in a convex shape by bending an intermediate portion in the vertical direction of the ornament panel 2 to the outside of the vehicle, for example, and is provided so as to extend substantially in the front-rear direction from the front end to the rear end of the ornament panel 2. There is.

Further, an upper rib 21 (rib) is provided on the upper part of the ornament panel 2 in order to secure the strength of the upper flange portion 12. A plurality of upper ribs 21 are erected from the inner wall surface of the upper flange portion 12 and are provided at substantially equal intervals in the front-rear direction of the vehicle.

As shown in the shaded area of FIG. 5, the upper rib 21 is provided on the upper part of the ornament panel 2 and extends downward from the lower surface of the upper flange portion 12 to improve the bending strength of the upper flange portion 12 in the vertical direction. Have.

In the ornament panel 2 of the present embodiment, the upper rib 21 (first rib 21a) in the middle portion in the front-rear direction, which is a position facing the shoulder of the occupant M seated on the side seat 5, is located in front of the vehicle or The protruding height is set lower than that of the upper rib 21 (second rib 21b) arranged at the rear of the vehicle. For example, as shown in FIG. 5, the first rib 21a has a portion indicated by a shaded portion and is substantially deleted from the ornament panel 2, and the second rib 21b has a portion indicated by the shaded portion. ..

Further, a slit (groove portion) 25 extending in the vertical direction is provided between the adjacent upper ribs 21 and the upper ribs 21 of the ornament panel 2. Several slits 25 are provided between the adjacent upper ribs 21 in the vicinity of the middle portion in the front-rear direction of the ornament panel 2.

The slit 25 at the middle portion in the front-rear direction of the ornament panel 2 extends downward until it reaches the lower end portion of the ornament panel 2. The slit 25 near the second rib 21b located at the rear of the ornament panel 2 extends downward to the lateral rib 20 in the vertical middle portion of the ornament panel 2.

Further, with respect to the slit 25 near the first rib 21a, a triangular notch 26 (notch portion) is formed at the edge portion of the upper flange portion 12.

The ornament panel 2 is fixed to the door trim 3 (a portion other than the ornament panel 2) in several places by, for example, bolts. At least, the front end portion and the rear end portion 30 of the ornament panel 2 are firmly fixed to the door trim 3 by, for example, bolts.

Regarding the door trim 3 having the ornament panel 2 formed as described above, the shape change of each part will be described, for example, when the left front door 1 collides with the utility pole.

For example, when the front-rear intermediate portion of the left front door 1 collides with a columnar utility pole extending in the vertical direction, the utility pole pushes the left front door 1 toward the inside of the vehicle, and the outer panel 6 and the inner panel of the left front door 1 are pushed. 7 bends inward of the car. At this time, the outer panel 6 and the inner panel 7 of the sheet metal member are bent in an arc shape along the outer shape of the utility pole. Further, the thin plate-shaped door trim 3 also bends along the inner panel 7, but since the ornament panel 2 is thicker than the door trim 3, it is harder to bend than the door trim 3.

In the door trim structure of the present embodiment, since the front end portion and the rear end portion of the ornament panel 2 are firmly fixed to the door trim 3 with bolts or the like, the outer panel 6, the inner panel 7, and the door trim 3 are bent at the time of a side collision of a utility pole or the like. At that time, a part of the ornament panel 2 (for example, the rear end portion 30) does not come off from the door trim 3 and bends together with the door trim 3. As a result, the ornament panel 2 bends at the time of a side collision, so that the impact absorption of the entire left front door 1 can be improved.

Further, the ornament panel 2 is provided near the shoulder portion of the occupant M seated in the adjacent seat 5. Further, in the vehicle of the present embodiment, the side airbag 10 is provided on the seat back 9 of the seat 5, and is deployed between the seat back 9 and the left front door 1 in the event of a vehicle collision. For example, if the rear end portion 30 of the ornament panel 2 comes off at the time of a side collision, the rear portion of the ornament panel 2 protrudes toward the seat back 9 side with the support portion of the front end portion as the center in a short time. Therefore, at the time of a side collision, the ornament panel 2 protruding inside the vehicle may hinder the deployment of the side airbag 10.

On the other hand, in the present embodiment, the ornament panel 2 does not come off from the door trim 3 and bends together with the door trim 3 at the time of a side collision, so that the ornament panel 2 is suppressed from protruding into the vehicle interior, and the deployment area of the side airbag 10 is suppressed. Can be secured.

Further, the upper end portion of the ornament panel 2 is provided with an upper flange portion 12 that bends outward in the vehicle width direction, and an occupant can place an elbow or the like on the upper flange portion 12. Further, since the ornament panel 2 is provided with a plurality of upper ribs 21 extending in the vertical direction and arranged at intervals in the front-rear direction, it is possible to secure the strength of the ornament panel 2 in normal use. can.

On the other hand, since the protruding height of the upper rib 21 (first rib 21a) is suppressed in the vehicle front-rear direction intermediate portion of the ornament panel 2, it is easy to bend in the vehicle front-rear direction intermediate portion of the ornament panel 2 at the time of side collision. Become.

Further, since the slit 25 extending in the vertical direction is provided in the middle portion of the ornament panel 2 in the vehicle front-rear direction, the ornament panel 2 is more easily bent along the slit 25 at the time of a side collision.

The slit 25 is arranged between a plurality of upper ribs 21 arranged in the front-rear direction and is also provided in the middle portion of the ornament panel 2 in the vehicle front-rear direction. 25 makes it easier for the intermediate portion of the ornament panel 2 in the vehicle front-rear direction to bend at the time of a side collision.

Further, the slit 25 in the middle portion in the vehicle front-rear direction of the ornament panel 2 is provided with a triangular notch 26 extending to the edge portion of the upper flange portion 12 and having the width of the slit 25 expanded at the edge portion. The ornament panel 2 can be further easily bent along the slit 25 at the time of side collision.

Although the description of the embodiment is completed above, the embodiment of the present invention is not limited to the above embodiment. For example, in the above embodiment, the protrusion height of the first rib 21a, which is the upper rib 21 of the middle portion in the vehicle front-rear direction of the ornament panel 2, is suppressed as higher than that of the second rib 21b, which is the upper rib 21 before and after the first rib 21a. However, the first rib 21a may be completely deleted.

Further, the detailed shape of the ornament panel 2 can be changed as appropriate. Further, the present invention can be applied to the right front door and the rear door of the vehicle.

The present invention can be widely applied to the door of a vehicle having an ornament panel on the door trim.

1 Left front door (door)
2 Ornament panel (interior material)
3 Door trim 5 Seat 10 Side airbag 12 Upper collar (flange)
21 Upper rib (rib)
21a 1st rib 21b 2nd rib 25 Slit (groove)
26 Notch (notch)
M Crew

Claims (9)

It is a vehicle door trim structure in which the interior material is fixed to the door trim provided inside the vehicle door.
At least the front-rear end of the interior material is fixed to the door trim.
In the interior material, a plurality of ribs extending in the vertical direction are arranged side by side at intervals in the front-rear direction of the vehicle.
Of the plurality of ribs, the first rib located in the vehicle front-rear direction intermediate portion of the interior material is a second rib provided in the vehicle front or the vehicle rear of the vehicle front-rear direction intermediate portion of the interior material. The door trim structure of the vehicle is characterized by being set low in strength. The interior material according to claim 1, wherein the vehicle front-rear intermediate portion is arranged at a position facing the shoulder or chest of an occupant seated in a seat adjacent to the side of the door trim. Vehicle door trim structure. The vehicle door trim structure according to claim 1 or 2, wherein the first rib is formed to have a lower protrusion height than the second rib. The vehicle door trim structure according to claim 1 or 2, wherein the rib is not arranged in the vehicle front-rear direction intermediate portion of the interior material. The vehicle door trim structure according to any one of claims 1 to 4, wherein the interior material has a groove portion extending in the vertical direction in the middle portion in the vehicle front-rear direction. The vehicle door trim structure according to claim 5, wherein the groove is provided between a plurality of ribs adjacent to each other in the front-rear direction of the vehicle. The upper end portion of the interior material has a flange portion that bends outward in the vehicle width direction.
The vehicle door trim structure according to any one of claims 1 to 4, wherein the rib supports the inner wall surface of the flange portion. The upper end portion of the interior material has a flange portion that bends outward in the vehicle width direction.
The vehicle door trim structure according to claim 5 or 6, wherein the rib supports an inner wall surface of the flange portion. The groove portion is formed so as to extend to the end portion of the flange portion.
The vehicle door trim structure according to claim 8, wherein the end portion of the flange portion has a notch portion formed by expanding the width of the groove portion.

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