WO2018220666A1

WO2018220666A1 - Armrest for vehicle

Info

Publication number: WO2018220666A1
Application number: PCT/JP2017/019864
Authority: WO
Inventors: 洋介今
Original assignee: 河西工業株式会社
Priority date: 2017-05-29
Filing date: 2017-05-29
Publication date: 2018-12-06

Abstract

Provided is an armrest for vehicles, which is capable of providing both superior stiffness with respect to an input load from above and superior shock absorbability with respect to a shock from the side. According to the present invention, an armrest core material (20) that constitutes a door armrest (2) has a shelf part (22) that extends along a door trim and that is used as an armrest, and slit parts (27, 28) that are provided along the extension direction of the shelf part (22). Moreover, the shelf part (22) has a bead shape in which a plurality of longitudinal wall parts (23a, 24a), which are continuous in the extension direction of the shelf part (22), are arranged side by side in the direction perpendicular to the surface of the door trim.

Description

Vehicle armrest

The present invention relates to an armrest for a vehicle.

Conventionally, a door trim (interior member) is mounted on a vehicle body panel, for example, a door panel so as to cover the vehicle interior side, and an armrest is provided on the door panel. The armrest is formed so as to bulge toward the vehicle interior side, a core material that is a base for modeling, a cushion material that is attached to the upper surface of the core material, and a skin material that covers the core material and the cushion material It consists of

For example, Patent Document 1 discloses a configuration in which a weak body portion set to be weaker in strength than other portions is formed on a core material. Specifically, the weak body part is comprised from the several opening part which penetrates a core material to an up-down direction. Each of the plurality of openings has an elongated shape, and is formed in a plurality of rows so as to be aligned in the vehicle front-rear direction on the upper surface of the core member.

Further, for example, Patent Document 2 discloses a configuration in which a corrugated portion is formed on the upper surface of a core material.

JP 2011-11578 A Japanese Patent Laid-Open No. 9-240277

As described above, the armrest is required to have a high rigidity capable of withstanding an input load from above when the occupant puts his elbow on the armrest and to appropriately absorb the impact from the side.

The present invention has been made in view of such circumstances, and an object thereof is to provide a vehicle armrest that can achieve both high rigidity with respect to an input load from above and high shock absorption with respect to an impact from the side. It is to be.

In order to solve this problem, the present invention provides an armrest for a vehicle provided on an interior member that covers a vehicle interior side of a vehicle body panel. This armrest for a vehicle includes a plate-shaped core material that is a base for modeling, and the core material extends along the interior member, and a shelf portion used for an armrest and a shelf portion, and the shelf portion extends. And a slit portion provided along the current direction. The shelf portion has a bead shape in which a plurality of vertical wall portions each continuous in the extending direction of the shelf portion are continuously provided in the direction perpendicular to the interior member.

Here, in the present invention, the shelf portion includes a first surface portion and a second surface portion continuously provided in a step shape at one side edge of the first surface portion at a position lower than the first surface portion. The slit portion preferably includes a first slit portion provided in a continuous portion between the first surface portion and the second surface portion.

In the present invention, the core member further includes a side wall portion that is connected to the other side edge of the first surface portion and rises along the interior member, and the slit portion includes the side wall portion and the first surface portion. It is preferable to further include a second slit portion provided in the continuous portion.

In the present invention, the bead shape is formed in the first surface portion and the second surface portion, respectively, and the notch end portion of the second surface portion notched by the first slit portion is from the bottom portion of the bead shape in the first surface portion. Is preferably set at a lower position.

According to the present invention, it is possible to achieve both high rigidity with respect to an input load from above and high shock absorption with respect to a side impact.

FIG. 1 is a perspective view schematically showing a door trim. FIG. 2 is a perspective view schematically showing an armrest core material constituting the door armrest. FIG. 3 is an explanatory view schematically showing a cross section of the armrest core material. FIG. 4 is an explanatory diagram schematically illustrating a state in which a load from above is input to the armrest constituent portion. FIG. 5 is an explanatory diagram schematically illustrating a state in which a load from the side is input to the armrest component. FIG. 6 is an explanatory diagram schematically illustrating a state in which a load from the side is input to the armrest component. FIG. 7 is an explanatory diagram schematically illustrating a state in which a load from the side is input to the armrest component.

Hereinafter, the vehicle armrest according to the present embodiment will be described using a door armrest as an example. Here, FIG. 1 is a perspective view schematically showing the door trim 1. FIG. 2 is a perspective view schematically showing the armrest core member 20 constituting the door armrest 2. FIG. 3 is an explanatory view schematically showing a cross section of the armrest core member 20. The hatching shown in FIG. 2 schematically shows a bead-shaped setting region described later.

The door trim 1 is an interior member that covers a vehicle interior side of a door inner panel that is a body panel of an automobile and decorates the vehicle interior. The door trim 1 is formed by molding using an appropriate synthetic resin material, and a skin serving as a cushion and a cover is bonded to a side surface (surface) on the vehicle interior side.

The door trim 1 is provided with a door armrest 2 at the center in the vertical direction. A door pocket 3 is formed in the door trim 1 at a position below the door armrest 2.

The door armrest 2 is provided along the door trim 1 and is used for an armrest of a passenger. In the present embodiment, the door armrest 2 has a shape that bulges toward the vehicle interior side, and has a trapezoidal shape that continues horizontally along the front-rear direction. The upper surface 2a of the door armrest 2 is provided with a switch unit arrangement portion 2a1 incorporating a power window switch, a door lock switch, etc. at the front position thereof, and at the center position thereof is a bottomed box-like pull handle. The arrangement portion 2a2 is provided. Further, a flat portion 2a3 is provided at a position behind the upper surface 2a.

The door armrest 2 includes an armrest core 20 assembled to the door trim 1, an armrest skin 30 covering the surface of the armrest core 20, and an armrest pad (between the armrest core 20 and the armrest skin 30). (Not shown).

The armrest core material 20 is a member that is a base for modeling the door armrest 2. The armrest core material 20 is formed in a plate shape extending in the front-rear direction by molding using an appropriate synthetic resin material. The details of the armrest core member 20 will be described later.

The armrest skin material 30 is made of an appropriate synthetic resin sheet to enhance the designability and texture, and covers the armrest core material 20 and the armrest pad.

The armrest pad is a cushion material and is made of hard urethane or the like. The armrest pad is provided corresponding to the flat portion 2a3 and the periphery of the arrangement portion 2a2 of the pull handle (a part on the vehicle interior side).

Hereinafter, the armrest core material 20 which is one of the features of the present embodiment will be described. The armrest core member 20 is provided with an armrest configuration portion 21 in which an armrest pad disposition region is formed in a stepped manner with a depth corresponding to the thickness of the armrest pad.

The armrest constituent part 21 includes a shelf part 22, an upper side wall part 25, and a lower side wall part 26.

The shelf 22 extends along the door trim 1 and is a part used for an armrest. That is, the shelf 22 constitutes a base (upper surface) on which the armrest pad is placed.

The shelf portion 22 is composed of a first surface portion 23 and a second surface portion 24 provided in a stepped manner at a position lower than the first surface portion 23 at an edge of the first surface portion 23 on the vehicle interior side. It is configured. The first surface portion 23 has a bead shape in which a plurality of vertical wall portions 23a each continuous in the extending direction (front-rear direction) of the shelf portion 22 are connected in the direction perpendicular to the surface of the door trim 1 (left-right direction). ing. Specifically, the upper end sides of the adjacent vertical wall portions 23a are connected via an inverted U-shaped top portion 23b, and the lower end sides thereof are connected via a U-shaped bottom portion 23c. . Similarly, the second surface portion 24 has a bead shape in which a plurality of vertical wall portions 24a each continuous in the extending direction (front-rear direction) of the shelf portion 22 are arranged in the direction perpendicular to the surface of the door trim 1 (left-right direction). Have. Specifically, the upper end sides of the vertical wall portions 24a adjacent to each other are connected via an inverted U-shaped top portion 24b, and the lower end sides thereof are connected via a U-shaped bottom portion 24c. .

The upper side wall portion 25 is connected to the side edge of the first surface portion 23 on the door trim 1 side, and stands up along the door trim 1.

The lower side wall portion 26 is connected to the side edge of the second surface portion 24 on the vehicle interior side and extends downward.

In such an armrest constituent part 21, the first slit part 27 is provided in the continuous part C1 that connects the first surface part 23 and the second surface part 24. The first slit portion 27 is composed of a plurality of slits 27 a provided intermittently along the extending direction of the shelf portion 22. Each of the slits 27 a has a vertically long rectangular shape that is long in the extending direction of the shelf portion 22.

In this case, as shown in FIG. 3, the notch end portion 24d of the second surface portion 24 notched by the slit 27a is set at a position lower than the bead-shaped bottom portion 23c of the first surface portion 23.

Further, a second slit portion 28 is provided in the continuous portion C2 between the upper side wall portion 25 and the first surface portion 23. The second slit portion 28 is composed of a plurality of slits 28 a provided intermittently along the extending direction of the shelf portion 22. Each of the slits 28 a has a vertically long rectangular shape that is long in the extending direction of the shelf portion 22.

Hereinafter, an armrest structure including the armrest component 21 will be described. FIG. 4 is an explanatory diagram schematically showing a state in which a load Fv from above is input to the armrest constituting portion 21. 5 to 7 are explanatory views schematically showing a state in which a load Fh from the side is inputted to the armrest constituting portion 21. FIG.

In the armrest constituting portion 21, when a load Fv is input from above by an occupant placing an elbow on the flat portion 2a3 of the door armrest 2, the shelf 22 positioned on the lower surface side of the armrest pad receives the input load Fv. Take it. The 1st surface part 23 and the 2nd surface part 24 which comprise the shelf part 22 are set as the structure containing the

vertical wall parts

23a and 24a which stand in a substantially perpendicular direction. Therefore, when the

vertical wall portions

23a and 24a are stretched against the input load Fv in the vertical direction, high rigidity is exhibited with respect to the input load Fv (see FIG. 4). Thereby, the deformation | transformation resulting from the input load Fv can be suppressed.

On the other hand, when a load Fh is input to the door armrest 2 from the vehicle interior side due to an impact applied from the outside to the side of the vehicle, the input load Fh is received by the shelf portion 22 and the lower wall portion 26. It is done. Thereby, although the shelf part 22 and the lower side wall part 26 move to the door trim 1 side, since the movement of the upper side wall part 25 is regulated by the door trim 1, the load Fh is input to the shelf part 22 toward the vehicle outer side ( (See FIG. 5).

At this time, the first surface portion 23 and the second surface portion 24 constituting the shelf portion 22 are configured to include the upright

vertical wall portions

23a and 24a. Therefore, each of the surfaces forming the

vertical wall portions

23a and 24a receives the horizontal input load Fh while the

top portions

23b and 24b and the

bottom portions

23c and 24c connecting the

vertical wall portions

23a and 24a are bent. (See FIG. 6). Thereby, the input energy accompanying the load Fh is absorbed primarily.

Further, since the shelf portion 22 is provided with a slit portion, specifically, a first slit portion 27 corresponding to the continuous portion C1 and a second slit portion 28 corresponding to the continuous portion C2, each shelf portion is provided. The parts C1 and C2 have a fragile structure. For this reason, when the load Fh is further input to the shelf portion 22, the shearing force acting on the continuous portions C1 and C2 exceeds a certain limit value, and cracks occur in the continuous portions C1 and C2.

If a crack occurs in the entire area or a part of the continuous portions C1 and C2, the first surface portion 23 and the second surface portion 24 can move to the door trim 1 side in the crack region. Specifically, the second surface portion 24 moves to the door trim 1 side so as to sink under the first surface portion 23, and similarly, the first surface portion 23 sinks under the upper wall portion 25. It moves to the door trim 1 side (see FIG. 7).

In particular, in this embodiment, the notch end portion 24d of the second surface portion 24 notched by the first slit portion 27 is set at a position lower than the bead-shaped bottom portion 23c of the first surface portion 23. For this reason, even when the second surface portion 24 has entered the lower side of the first surface portion 23, interference between the notch end portion 24 d of the second surface portion 24 and the bottom portion 23 c of the first surface portion 23 is suppressed. Thereby, the 2nd surface part 24 moves smoothly to the door trim 1 side.

Thus, since the

slit portions

27 and 28 are provided in the continuous portions C1 and C2, the continuous portions C1 and C2 can be broken with the input of the load Fh. Further, since the

slit portions

27 and 28 are present in the continuous portions C1 and C2, the first surface portion 23 is located below the upper side wall portion 25 and the second surface portion 24 is disposed after the continuous portions C1 and C2 are broken. It is possible to sink under the first surface portion 23. Thereby, since the 1st surface part 23 and the 2nd surface part 24 can each be moved to the door trim 1 side, the input energy accompanying the load Fh is absorbed secondarily.

Thus, in the door armrest 2 according to the present embodiment, the armrest core member 20 extends along the door trim 1 and is used for armrests, and the shelf 22 extends to the shelf 22. And slit

portions

27 and 28 provided along the direction. The shelf portion 22 has a bead shape in which a plurality of

vertical wall portions

23 a and 24 a that are continuous in the extending direction of the shelf portion 22 are arranged in a direction perpendicular to the door trim 1.

According to this configuration, as described above, it has high rigidity with respect to the input load Fv from above and high energy absorption with respect to the input load Fh (impact) from the side. An armrest structure can be provided.

Further, according to the present embodiment, when the shelf portion 22 has a bead shape, there are a plurality of horizontal plane regions (the

top portions

23b and 24b and the

bottom portions

23c and 24c) having a small area. Thereby, it can be set as the structure which is easy to be crushed with respect to the input of the load Fh from the side compared with the case where the shelf part 22 is formed in one horizontal surface area | region. As a result, it is possible to appropriately absorb the input energy accompanying the load Fh.

Further, when the shelf 22 is formed in one horizontal plane region, the deformation at the time of crushing varies, and there is a possibility that the energy absorption accompanying the load Fh cannot be controlled. On the other hand, when the shelf portion 22 has a bead shape, deformation at the time of crushing can be controlled, so that input energy accompanying the load Fh can be appropriately absorbed.

Moreover, in this embodiment, the shelf part 22 is comprised by the 1st surface part 23 and the 2nd surface part 24 connected in a row at the position lower than the 1st surface part 23. As shown in FIG. A first slit portion 27 is provided in the connecting portion C <b> 1 between the first surface portion 23 and the second surface portion 24.

According to this configuration, as the load Fh is input, the continuous portion C1 is broken, so that the second surface portion 24 sinks below the first surface portion 23. Thereby, the input energy accompanying the load Fh can be appropriately absorbed through the displacement of the second surface portion 24.

The armrest core member 20 further includes an upper side wall portion 25 that stands up along the door trim 1. A second slit portion 28 is provided in a continuous portion C <b> 2 between the upper side wall portion 25 and the first surface portion 23.

According to this configuration, as the load Fh is input, the continuous portion C2 is broken, so that the first surface portion 23 sinks below the upper side wall portion 25. Thereby, the input energy accompanying the load Fh can be appropriately absorbed through the displacement of the first surface portion 23.

In addition, the notch end portion 24 d of the second surface portion 24 notched by the first slit portion 27 is set at a position lower than the bead-shaped bottom portion 23 c in the first surface portion 23.

According to this configuration, when the second surface portion 24 sinks below the first surface portion 23, the cutout end portion 24d of the second surface portion 24 does not interfere with the bottom portion 23c of the first surface portion 23. The two-surface portion 24 moves smoothly toward the door trim 1 side. Thereby, the input energy accompanying the load Fh can be absorbed appropriately.

As mentioned above, although the armrest for vehicles of this embodiment was explained, the present invention is not limited to this embodiment, and various changes are possible within the scope of the present invention.

For example, although the shelf is composed of two multi-surface portions, it may be composed of three or more surface portions. In this case, it is preferable to set a slit part in the connection part of each surface part.

Further, in the bead shape according to the present embodiment, the vertical wall portion has a U-shaped top portion and a bottom portion, and a plurality of vertical wall portions are continuously provided in the direction perpendicular to the door trim. The structure is not limited to that shown in the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Door trim 2 Door armrest 2a Upper surface 2a1 Arrangement part 2a2 Arrangement part 2a3 Flat part 3 Door pocket 20 Armrest core material 21 Armrest component part 22 Shelf part 23 1st surface part 23a Vertical wall part 23b Top part 23c Bottom part 23d Notch end part 24 2 side parts 24a Vertical wall part 24b Top part 24c Bottom part 25 Upper side wall part 26 Lower side wall part 30 Armrest skin C1, C2 Connection part

Claims

In the vehicle armrest provided on the interior member that covers the vehicle interior side of the vehicle body panel,
It has a plate-like core material that is the base of modeling,
The core material is
A shelf that extends along the interior member and is used for armrests;
The shelf part has a slit part provided along the extending direction of the shelf part,
The vehicle armrest according to claim 1, wherein the shelf portion has a bead shape in which a plurality of vertical wall portions, each continuous in the extending direction of the shelf portion, are arranged in a direction perpendicular to the surface of the interior member.
The shelf is
A first surface portion;
The second surface portion is provided on one side edge of the first surface portion, and is provided in a step shape at a position lower than the first surface portion.
The slit portion is
2. The vehicle armrest according to claim 1, further comprising a first slit portion provided in a connecting portion between the first surface portion and the second surface portion.
The core member further includes a side wall portion that is connected to the other side edge of the first surface portion and rises along the interior member.
3. The vehicle armrest according to claim 2, wherein the slit portion further includes a second slit portion provided in a connecting portion between the side wall portion and the first surface portion.
The bead shape is formed on each of the first surface portion and the second surface portion,
The notched end portion of the second surface portion that is notched by the first slit portion is set at a position lower than the bottom portion of the bead shape in the first surface portion. Vehicle armrest.