JP2020100361A - Door panel for vehicle - Google Patents

Abstract

To provide a door panel for vehicle which enables appropriate arrangement of a soundproof material and suppresses intrusion of noise into a vehicle.SOLUTION: A resin-made outer panel 12, a resin-made inner panel 13 which is bonded to at least a peripheral edge part 12a of the resin-made outer panel 12 and forms a first space part 14 between the resin-made outer panel 12 and the resin-made inner panel 13, and a seal material 5 mounted on a door opening edge part 6 on at least the vehicle side are provided. A first soundproof material 16 is mounted on the resin-made inner panels 13 and 113 of the first space part 14, and the first sound proof material 16 extends to the in-car side of at least a position where the peripheral edge part of the resin-made inner panels 13 and 113 and the seal material 5 are brought into contact with each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle door panel made of resin.

In recent years, resin door panels for vehicles have been used for the purpose of reducing vehicle weight. This type of vehicle door panel can be made lightweight because it is made of resin, but resin having a smaller mass than the sheet metal easily transmits sound, and therefore noise countermeasures are required.

Therefore, it is known to dispose a soundproof mat in the space between the resin outer panel and the resin inner panel (for example, refer to Patent Document 1).

JP, 2007-245759, A

However, if the resin door panel is made thinner due to the need for further weight reduction, the problem of noise becomes remarkable.

The present invention has been made in view of the above points, and an object of the present invention is to appropriately dispose a soundproofing material and suppress the entry of noise into the vehicle.

In order to achieve the above object, in the present invention, the arrangement of the soundproofing material is modified.

Specifically, the vehicle door panel of the first invention is
A resin outer panel,
A resin inner panel that is adhered to at least a peripheral portion of the resin outer panel to form a first space between the resin outer panel and the resin outer panel;
At least a seal material attached to the door opening edge portion on the vehicle side,
A first soundproof material that is attached to the resin inner panel of the first space portion and that extends at least inside the vehicle from the position where at least the peripheral edge of the resin inner panel and the sealing material abut. I have it.

According to the above configuration, the soundproofing material is extended to the back of the sealing material, so that the noise that enters into the vehicle from the lap portion of the vehicle door panel with the vehicle body is effectively suppressed.

In a second invention, in the first invention,
Further comprising a second soundproof material attached to the resin outer panel,
The second soundproof material and the first soundproof material are in contact with or press-contact with each other at the peripheral edge portion,
The first soundproof material is provided so as to extend toward the inside of the vehicle from a position where the sealing material abuts on the resin inner panel.

According to the above configuration, the first soundproofing material and the second soundproofing material are arranged in contact with or in pressure contact with each other at their peripheral portions without a gap, and the first soundproofing material is extended to the back of the sealing material. Noise that enters the vehicle from the portion of the vehicle door panel that wraps with the vehicle body can be more effectively suppressed.

In a third invention, in the first or second invention,
In the portion of the first space portion where the resin outer panel and the resin inner panel are in contact with each other or are in pressure contact with each other, a narrow space portion which is a space narrower than other regions is formed.

According to the above configuration, a large lap can be secured between the first soundproof material and the second soundproof material in the narrow space, so that the gap is eliminated and the soundproof property is enhanced. Further, since it becomes easy to arrange the interstitial portion and the adhesive portion so as not to overlap with each other, it is less likely to interfere with the work of adhering the resin outer panel and the resin inner panel.

The vehicle door panel of the fourth invention is
A resin outer panel,
A resin inner panel that is adhered to at least a peripheral portion of the resin outer panel to form a first space between the resin outer panel and the resin outer panel;
An inner trim that forms a second space between the vehicle inner side and at least one of the resin inner panel and the resin outer panel inside the peripheral portion of the resin outer panel;
A second soundproof material provided in the first space portion and attached to the resin outer panel;
A third soundproofing member provided in the second space and attached to the resin inner panel or both the resin inner panel and the resin outer panel,
The resin inner panel has a partition wall that extends from the vehicle interior side toward the vehicle exterior direction and has a tip end that is bonded to the resin outer panel and that divides the first space portion and the second space portion.
The second soundproof material has an abutting portion which is provided at an end portion on the second space portion side and which comes into contact with the partition wall,
The third soundproof material covers the vehicle compartment side at the abutting portion of the partition wall.

According to the above configuration, since the third soundproofing material covers the compartment side of the partition wall opposite to the adhesive portion with the resin outer panel, the operation of adhering the resin outer panel and the resin inner panel. It is easy to secure the wrap margin between the third soundproofing material and the second soundproofing material without disturbing. Therefore, it is possible to effectively prevent noise from entering the vehicle from around the bonded portion between the resin outer panel and the resin inner panel.

In a fifth invention, in the fourth invention,
In the contact part,
The partition wall of the resin inner panel is provided in a shelf shape,
The second soundproof material is sandwiched between the resin outer panel and the resin inner panel.

According to the above configuration, the wrap margin of the second soundproofing material and the third soundproofing material can be increased in the shelf-shaped portion, so the soundproofing performance is improved. In addition, the adhesive portion and the contact portion of the shelf portion can be easily separated, so that the adhesive work between the resin outer panel and the resin inner panel is unlikely to be an obstacle.

As described above, according to the present invention, it is possible to appropriately arrange the soundproofing material and suppress the intrusion of noise into the vehicle.

FIG. 3 is an enlarged sectional view taken along line I-I of FIG. 2. 1 is a perspective view showing a vehicle door panel according to a first embodiment of the present invention. It is a III-III line expanded sectional view of FIG. It is a front view of a vehicle door panel in a state where an interior trim showing a mounting range of each soundproof material is removed in a left half. It is sectional drawing equivalent to FIG. 1 which concerns on Embodiment 2 of this invention.

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

(Embodiment 1)
FIG. 2 shows a rear portion of an automobile 1 having a vehicle door panel 10 according to the first embodiment of the present invention. The automobile 1 includes a vehicle body 2 made of a metal frame (actually, its appearance does not appear in FIG. 2). A resin bumper 3 is provided below the rear end of the resin bumper. As shown in FIG. 1, the inside of the vehicle body 2 is covered with an interior trim 4 and the like.

The vehicle door panel 10 is, for example, a back door of the automobile 1. The vehicle door panel 10 is configured to be vertically rotatable about a horizontally extending hinge shaft (not shown) provided on the upper rear end of the automobile 1. The entire upper rear surface of the vehicle door panel 10 is covered with, for example, a peripheral portion of the tempered glass 11 colored in black.

As shown in the enlarged cross-sections of FIGS. 1 and 3, the vehicle door panel 10 is formed of a resin such as GFRP (glass fiber reinforced resin), talc-containing polypropylene resin, PC-ABS (polycarbonate/ABS alloy resin) or the like. A resin outer panel 12 made of a product is provided. At least the peripheral portion 12a of the resin outer panel 12, for example, a resin molded product such as CFRP (carbon fiber reinforced resin), GFRP, injection moldable glass fiber reinforced polypropylene resin, or injection moldable carbon fiber reinforced polypropylene resin. A resin inner panel 13 made of a resin is adhered by an adhesive 21 made of a urethane resin adhesive or the like. As a result, the first space portion 14 having a predetermined thickness is formed between the resin inner panel 13 and the resin outer panel 12. With this configuration, the weight of the vehicle door panel 10 can be reduced, but the soundproofing is not sufficient.

Therefore, as shown in FIGS. 1, 3 and 4, in this first space portion 14, a shape attached to the inner surface (outer hatching area shown in FIG. 4) along the peripheral edge portion 12a of the resin outer panel 12 is attached. Then, the sheet-shaped second soundproofing material 15 is attached. For example, the second soundproofing material 15 is made of a fine fiber non-woven sheet of polyethylene, polyester, polypropylene or the like, a urethane foam sheet, felt or a laminate of these with an aluminum film, and is attached by a double-sided tape, an adhesive or the like. ing.

Similarly, in the first space portion 14, a sheet-like shape is attached to a surface on the second soundproof material 15 side inside the hatched area shown in FIG. 4 inside the resin-made inner panel 13 (hatched area shown in FIG. 4). The first soundproofing material 16 is provided. For example, the first soundproof material 16 is also made of the same material as the second soundproof material 15. The second soundproof material 15 and the first soundproof material 16 are in pressure contact with each other so as to be deformed at the peripheral edge portion 12a. Specifically, as shown in FIG. 1, the portion of the first space 14 where the second soundproof material 15 and the first soundproof material 16 are in pressure contact is formed by the resin outer panel 12 and the resin inner panel 13. There is formed a narrow space 17 in which the first space 14 is a space narrower than other areas. In the narrowed narrow portion 17, the second soundproof material 15 and the first soundproof material 16 are in a deformed pressure contact state, and this portion is apart from the portion to which the adhesive 21 is applied.

As shown in FIG. 1, in particular, in the first soundproofing material 16, not only the vicinity of the peripheral edge portion 12 a but also the weather strip 5 as a sealing material attached to the vehicle-side door opening edge portion 6 is the resin inner panel 13. It is provided so as to extend to the inside of the vehicle (the lower side of FIG. 1) from the position (shown by A in FIG. 1) in contact with. As a result, noise that enters the inside of the vehicle from the lap portion of the vehicle door panel 10 with the vehicle body 2 is effectively suppressed.

As shown in FIG. 4, the inner trim 19 is provided in a state in which the second space portion 18 is formed between the resin inner panel 13, the resin outer panel 12, and the inner trim 19. The inner trim 19 has, for example, a rectangular plate shape and is made of talc-containing polypropylene resin. The resin inner panel 13 partitions the first space portion 14 and the second space portion 18 into a partition wall 13a at a bonded portion (indicated by an adhesive 21) between the resin inner panel 13 and the resin outer panel 12. ing. Further, an abutting portion 15a that comes into contact with the partition wall 13a of the resin inner panel 13 is formed at the end of the second soundproof material 15 on the second space 18 side.

Further, in the second space 18, the inner surface of the resin inner panel 13 that abuts the back surface of the resin outer panel 12 (hatched area where the inner trim 19 shown in FIG. 4 is attached) is a sheet-shaped third soundproofing material. 20 is attached. This third soundproof material 20 is also made of the same material as the second soundproof material 15.

Next, the procedure for assembling the vehicle door panel 10 will be briefly described. First, as shown in FIGS. 1 and 4, the second soundproof material 15 is attached to the inner surface of the resin outer panel 12, and the resin The first soundproofing material 16 is attached to the inner panel 13 made of metal. Also, the third soundproofing material 20 is attached to a predetermined position of the resin inner panel 13.

Then, the resin inner panel 13 and the resin outer panel 12 are bonded with the adhesive 21. As a result, the second soundproof material 15 and the first soundproof material 16 are brought into pressure contact with each other in the narrow space 17. The third soundproofing material 20 may be pasted on the resin inner panel 13 instead of pasting it in advance. At this time, since the applied portion of the adhesive 21 and the pressure contact portions of the second soundproof material 15 and the first soundproof material 16 are displaced, the soundproof material is unlikely to interfere with the bonding work. Further, since the second soundproofing material 15 and the first soundproofing material 16 are pressed into contact with each other in the narrow space 17 to increase the lap size, the soundproofing property is enhanced.

Finally, the inner trim 19 is fitted.

As described above, in the present embodiment, the second soundproof material 15, the first soundproof material 16 and the third soundproof material 20 can be arranged without a gap, so that noise outside the vehicle does not easily reach the inside of the vehicle.

Therefore, according to the vehicle door panel 10 of the present embodiment, the second soundproof material 15, the first soundproof material 16 and the third soundproof material 16 are provided even if the vehicle door panel 10 is composed of the lightweight resin inner panel 13 and the resin outer panel 12. By disposing the soundproofing material 20 with as little space as possible, it is possible to prevent noise from entering the vehicle.

(Embodiment 2)
FIG. 5 shows a vehicle door panel 110 according to Embodiment 2 of the present invention, which is different from Embodiment 1 in that the structure of the resin inner panel 113 and the like is different. In this embodiment, the same parts as those in FIGS. 1 to 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

The vehicle door panel 110 of the present embodiment is also adhered to the resin outer panel 12 and at least the peripheral portion 12a of the resin outer panel 12 with the adhesive 21, and the first space portion is provided between the resin outer panel 12 and the resin outer panel 12. The resin inner panel 113 forming 14 is provided. Unlike the first embodiment, the resin inner panel 113 has a narrow portion that covers the resin outer panel 12, and a part of the inner surface of the resin outer panel 12 is exposed.

Also in the present embodiment, the resin inner panel 113 and the resin outer panel in a state where the second space portion 18 is formed between the exposed inner surfaces of the resin inner panel 113 and the resin outer panel 12 and the vehicle interior side. 12 is covered with an inner trim 19. Also in the present embodiment, in the resin inner panel 113, the first space portion 14 and the second space portion 18 are separated from each other by a partition wall (indicated by an adhesive 21) between the resin inner panel 113 and the resin outer panel 12. It is divided into 113a.

Similar to the above-described embodiment, the second soundproof material 115 is attached to the resin outer panel 12 in the first space portion 14, and the first soundproof material 16 is attached to the resin inner panel 113.

In the present embodiment, in the second space portion 18, the third soundproof material 120 is attached so as to straddle both the inner surfaces of the resin inner panel 113 and the resin outer panel 12.

At the end of the second soundproof material 115 on the second space 18 side, a contact portion 115a that contacts the partition wall 113a of the resin inner panel 113 is formed. At the contact portion 115a, the partition wall 113a of the resin inner panel 113 is provided in a shelf shape to form a shelf portion 113b. In this shelf portion 113b, the contact portion 115a of the second soundproof material 115 is sandwiched between the resin outer panel 12 and the resin inner panel 113.

Furthermore, the third soundproofing member 120 is extended so as to cover the inside of the vehicle interior at the contact portion 115a of the partition wall 113a. When the resin inner panel 113 extends to the left side in FIG. 5 as in the first embodiment, the third soundproofing material 120 is attached only to the resin inner panel 113.

Next, the procedure for assembling the vehicle door panel 110 will be briefly described. First, as shown in FIG. 5, the second soundproof material 115 is attached to the inner surface of the resin outer panel 12, and the resin inner panel 113 is attached. The first soundproofing material 16 is pasted on.

Then, the resin inner panel 113 and the resin outer panel 12 are bonded to each other with the adhesive 21. Since the shelf portion 113b is displaced from the position where the adhesive 21 is applied, the soundproof material is unlikely to interfere with the bonding work between the resin outer panel 12 and the resin inner panel 113.

Further, the third soundproofing material 120 is thereafter attached to the resin outer panel 12 and the resin inner panel 113 around the contact portion 115a. In the present embodiment, since the wrap margin between the second soundproof material 115 and the third soundproof material 120 can be increased in the vicinity of the partition wall 113a of the resin inner panel 113, the soundproof property is improved.

Finally, the inner trim 19 is fitted.

As described above, in the present embodiment, the soundproof material does not interfere with the work of adhering the resin outer panel 12 and the resin inner panel 113, and the adhesive portion (adhesive agent) between the resin outer panel 12 and the resin inner panel 113 is provided. 21) It is possible to suppress noise from entering the vehicle from the surroundings.

Also in the present embodiment, since the lap between the second soundproofing material 15 and the first soundproofing material 16 can be increased in the narrow space 17, the soundproofing property can be improved.

Therefore, also in the vehicle door panel 110 according to the present embodiment, the second soundproofing material 115, the first soundproofing material 16 and the third soundproofing material 120 are arranged with as little space as possible to prevent noise from entering the vehicle. be able to.

(Other embodiments)
The present invention may have the following configurations in the above embodiment.

That is, in the above-described embodiment, the second soundproof material 15 and the first soundproof material 16 are in pressure contact with each other in the interstitial portion 17, but the sound insulation materials may be overlapped in a state of simply abutting each other.

Further, in the above-described embodiment, each material of the component parts is exemplified, but the material is not necessarily limited to this.

Further, in the above-described embodiment, the vehicle door panel 10 is the back door of the automobile 1, but may be a door panel of a vehicle other than the automobile, or may be a side door or a sliding door instead of the back door.

Note that the above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications, and uses.

1 car
2 car body
3 resin bumpers
4 Interior trim
5 Weather strip (seal material)
5 Seal material
6 Door opening edge
10 Vehicle door panel
11 tempered glass
12 resin outer panel
12a peripheral part
13 resin inner panel
13a partition wall
14 First space part
15 Second soundproofing material
15a contact part
16 First soundproof material
17 Between
18 Second space section
19 inner trim
20 Third soundproof material
21 Adhesive
110 vehicle door panel
113 resin inner panel
113a partition wall
113b Shelf
115 Second soundproof material
115a contact part
120 Third soundproof material

Claims (5)

A resin outer panel (12),
A resin inner panel (13, 113) which is adhered to at least the peripheral portion (12a) of the resin outer panel (12) and forms a first space portion (14) between the resin outer panel (12) and the resin outer panel (12). When,
A seal material (5) attached to at least a door opening edge portion (6) on the vehicle side;
From the position where it is attached to the resin inner panel (13, 113) of the first space portion (14) and at least the peripheral portion of the resin inner panel (13, 113) and the sealing material (5) are in contact with each other. The vehicle door panel (10, 110), further comprising: a first soundproofing material (16) extended to the inside of the vehicle. A second soundproof material (15, 115) attached to the resin outer panel (12),
The second soundproof material (15, 115) and the first soundproof material (16) are in contact with or press-contact with each other at the peripheral edge portion (12a),
The first soundproofing material (16) is provided so as to extend inward from the position where the sealing material (5) abuts on the resin inner panel (13, 113). 1 vehicle door panel (10, 110). A portion of the first space portion (14) where the resin outer panel (12) and the resin inner panel (13, 113) are in contact with or press-contacted with each other is a narrow space portion (a space narrower than other regions). 17) is formed, The vehicle door panel (10, 110) according to claim 1 or 2. A resin outer panel (12),
A resin inner panel (13, 113) which is adhered to at least the peripheral portion (12a) of the resin outer panel (12) and forms a first space portion (14) between the resin outer panel (12) and the resin outer panel (12). When,
Inside the peripheral portion of the resin outer panel (12), a second space portion (18) is provided between at least one of the resin inner panel (13, 113) and the resin outer panel (12) and the vehicle interior side. An inner trim (19) forming a
A second soundproof material (15, 115) provided in the first space portion (14) and attached to the resin outer panel (12);
It is provided in the second space (18) and is attached to the resin inner panel (13, 113) or both the resin inner panel (13, 113) and the resin outer panel (12). A third soundproof material (120),
The resin inner panel (13, 113) includes a first space portion (14) and a second space portion (18) that extend in the vehicle exterior direction from the vehicle interior side and have their ends bonded to the resin outer panel. With partition walls (13a, 113a) of
The second soundproof material (15, 115) has an abutting portion (15a, 115a) provided at an end portion on the second space portion (18) side and in contact with the partition wall (13a, 113a). ,
The vehicle door panel (10, 110), characterized in that the third soundproofing material (120) covers the vehicle interior side of the abutting portions (15a, 115a) of the partition walls (13a, 113a). In the contact part,
Partition walls (13a, 113a) of the resin inner panel (13, 113) are provided in a shelf shape,
The vehicle according to claim 4, wherein the second soundproofing material (15, 115) is sandwiched between the resin outer panel (12) and the resin inner panel (13, 113). Door panel (10,110).

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