JP2021154928A - Vehicular exterior panel - Google Patents

Abstract

To reduce noise transmitted from the outside of a vehicle through an internal space of an exterior panel into a vehicle cabin.SOLUTION: In a back door (1), a harness (47) is inserted into an internal space (45) of a back door body (2) in which an inner panel (3) and an outer panel (5) are joined from the outside of the back door body. The internal space is provided with a sound suppression chamber (61) for suppressing sound passing through a portion, through which the harness is inserted from the outside, of the back door body to the back side of the internal space.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to vehicle exterior panels.

Conventionally, an exterior panel for a vehicle in which an inner panel and an outer panel are joined is known. Such an exterior panel has an internal space between the inner panel and the outer panel. A linear component such as a wire harness is inserted from the outside into the internal space of the exterior panel and connected to an electrical component such as a lamp mounted on the vehicle (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 9-142230

In the exterior panel described above, it is necessary to provide an insertion hole in the inner panel or the outer panel for inserting the linear component from the outside into the internal space. Therefore, the sound outside the vehicle may enter the internal space of the exterior panel through the insertion hole, pass through the inner space, and propagate to the interior of the vehicle. Due to this, if the noise outside the vehicle reaches the inside of the vehicle, the comfort of the person inside the vehicle may be impaired.

An object of the present disclosure technique is to reduce noise from the outside of the vehicle through the internal space of the exterior panel to the inside of the vehicle.

The technology disclosed is intended for vehicle exterior panels. The vehicle exterior panel includes an inner panel and an outer panel joined to the inner panel. An internal space is formed between the inner panel and the outer panel. A linear component is inserted into the internal space from the outside.

The first aspect of the present disclosure is a sound that escapes to the inner space between the inner panel and the outer panel through a portion of the joint between the inner panel and the outer panel through which a linear component is inserted from the outside. It is an exterior panel for vehicles provided with a sound reduction room to reduce the noise.

In the second aspect of the present disclosure, in the vehicle exterior panel of the first aspect, the joint body between the inner panel and the outer panel has a first insertion passage for inserting a linear component from the outside into the sound reduction chamber, and a linear shape. It is an exterior panel for a vehicle in which a second insertion passage for inserting a component from a sound reduction chamber to another space in an internal space is formed. A sealing member is provided between the inner surface of the second insertion passage and the linear component to seal between the two.

A third aspect of the present disclosure is the vehicle exterior panel of the second aspect, wherein a sealing member for sealing between the inner surface of the first insertion passage and the linear component is also provided. It is an exterior panel.

A fourth aspect of the present disclosure is that in any one of the vehicle exterior panels of the first to third aspects, the sound reduction chamber is separated from the other space in the internal space by the partition wall provided on at least one of the inner panel and the outer panel. It is an exterior panel for vehicles that is partitioned.

According to the vehicle exterior panel of the first aspect, a sound reduction chamber is provided in the internal space between the inner panel and the outer panel, and the joint of both panels is passed through a portion through which a linear component is inserted from the outside. The sound coming out to the back side of the internal space is reduced in the sound reduction room. As a result, it is possible to reduce the noise that extends from the outside of the vehicle through the internal space of the exterior panel to the inside of the vehicle.

According to the vehicle exterior panel of the second aspect, between the inner surface of the second insertion passage for inserting the linear component from the sound reduction chamber to another space in the internal space and the linear component, between the two. Since the sealing member for sealing the sound is provided, the sound leaking from the sound reduction chamber to the internal space outside the sound reduction chamber through the second insertion passage can be reduced. This is advantageous in reducing the noise that extends from the outside of the vehicle through the internal space of the exterior panel to the inside of the vehicle.

According to the vehicle exterior panel of the third aspect, a seal that seals between the inner surface of the first insertion passage for inserting the linear component from the outside into the sound reduction chamber and the linear component. Since the members are provided, the sound entering the sound reduction room from the outside of the vehicle can be reduced. This is advantageous in reducing the noise that extends from the outside of the vehicle through the internal space of the exterior panel to the inside of the vehicle.

According to the vehicle exterior panel of the fourth aspect, since the sound reduction chamber is separated from other spaces in the internal space by a partition wall provided on at least one of the inner panel and the outer panel, it is separate from the inner panel and the outer panel. Compared with the case where the sound reduction chamber is provided by using the above parts, the number of parts of the exterior panel for the vehicle can be reduced.

FIG. 1 is a perspective view of a vehicle back door according to the first embodiment. FIG. 2 is a cross-sectional view of the back door taken along line II-II of FIG. FIG. 3 is a cross-sectional view showing a main part of the back door surrounded by III in FIG. FIG. 4 is a cross-sectional view showing a main part of the back door on the line IV-IV of FIG. FIG. 5 is an exploded perspective view showing a main part of the vehicle back door of the first embodiment. FIG. 6 is a view corresponding to FIG. 3 of the vehicle back door of the second embodiment. FIG. 7 is a view corresponding to FIG. 4 of the vehicle back door of the second embodiment. FIG. 8 is a cross-sectional view showing an operation when the sound reduction chamber is filled with foamed resin in the process of manufacturing the vehicle back door of the second embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the drawings. In the following embodiment, a back door will be described as an example as an exterior panel for a vehicle according to the technique of the present disclosure.

In the following embodiments, for convenience of explanation, the front side in the vehicle front-rear direction is referred to as "front" and the rear side is referred to as "rear". It is called "right", the upper side in the vehicle height direction is called "upper", and the lower side is called "lower". Further, the back door of this embodiment will be described on the premise of a posture in which the back door opening at the rear of the vehicle is closed.

<< First Embodiment >>
FIG. 1 is a perspective view of the vehicle back door 1 of the first embodiment. FIG. 2 is a cross-sectional view of the back door 1 on the line II-II of FIG. FIG. 3 is a cross-sectional view showing a main part of the back door 1 surrounded by III in FIG. FIG. 4 is a cross-sectional view showing a main part of the back door 1 on the line IV-IV of FIG. FIG. 5 is an exploded perspective view showing a main part of the vehicle back door 1 of the first embodiment.

The back door 1 shown in FIG. 1 is a back door that opens and closes vertically to open and close the back door opening 103 provided at the rear of the body body 101 of the hatchback vehicle. As shown in FIG. 2, the back door 1 includes an inner panel 3 located inside the vehicle, an outer panel 5 located on the outside (rear side) of the vehicle, and a window panel 7 as main configurations. The inner panel 3, the outer panel 5, and the window panel 7 form a back door main body 2 as a joint.

The inner panel 3 is a single resin panel, which is a resin molded product formed by injection molding or the like. The inner panel 3 is made of a thermoplastic resin containing a fiber reinforcing material. For example, the material of the inner panel 3 includes polypropylene containing glass fiber (PP-GF: Polypropylene Glass Fiber), polypropylene containing carbon fiber (PP-CF: Polypropylene Carbon Fiber), and polypropylene containing cellulose nanofiber (PP-). CNF: Polypropylene Cellulose Nanofiber) is used.

A substantially trapezoidal window opening 9 extending in the vehicle width direction is formed in the upper half of the inner panel 3. The peripheral portion of the window opening 9 of the inner panel 3 has an inner standing wall 11 that rises rearward toward the outer panel 5 side and an inner joint that protrudes inward from the rear end of the inner standing wall 11. A piece 13 is provided. Further, on the outer peripheral edge portion of the inner panel 3, an outer standing wall 15 that rises rearward toward the outer panel 5 side and an outer joining piece 17 that protrudes from the rear end of the outer standing wall 15 toward the outer peripheral side are provided. There is.

As shown in FIG. 3, the inner panel upper portion 3a, which is a portion of the inner panel 3 above the window opening 9, has a shape in which the surface on the outer panel 5 side faces upward and extends in the front-rear direction. A high mount stop lamp 19 is provided below the upper part 3a of the inner panel. The high mount stop lamp 19 lights rearward through the window panel 7. An insertion hole 21 for inserting a part of the harness 47, which will be described later, is formed in the upper portion 3a of the inner panel. A part of the harness 47 is inserted into the insertion hole 21 and connected to the high mount stop lamp 19. Further, a lamp cover 23 covering the high mount stop lamp 19 is attached to the upper portion 3a of the inner panel from the inside of the vehicle.

Although not shown, a latch is attached to a latch attachment portion provided on the outer standing wall 15 constituting the lower edge portion of the inner panel 3. The latch is a device that detachably engages with a striker provided at the lower edge of the back door opening 103 in the vehicle body 101. The latch and the striker cooperate with each other to lock the back door 1 to the vehicle body 101 in a closed state. Further, a wiper device for wiping the window panel 7 is attached to the device mounting portion 25 provided immediately below the window opening 9 of the inner panel 3.

The inner panel lower portion 3b, which is a portion of the inner panel 3 below the window opening 9, is provided with a concave portion 27 recessed rearward from the inside of the vehicle toward the outer panel 5 side. Although not shown, the concave portion 27 is formed with an opening for attachment or maintenance for attaching a latch to the latch attachment portion and wiring a harness to the wiper device or the latch. A door trim 29 is attached to the lower portion 3b of the inner panel from the front so as to cover the opening of the concave portion 27 and the device mounting portion 25.

The outer panel 5 is divided into upper and lower parts. The outer panel 5 includes a lower outer panel 31 located on the lower side and an upper outer panel 33 located on the upper side. Both the lower outer panel 31 and the upper outer panel 33 are resin molded products formed by injection molding or the like. For example, the lower outer panel 31 and the upper outer panel 33 are each made of a synthetic resin obtained by mixing polypropylene containing talc (PP-T: Polypropylene Talc) and ethylene propylene diene methylene rubber (EPDM: Ethylene Propylene Diene Monomer).

The lower outer panel 31 is a panel having a shape corresponding to the lower part 3b of the inner panel. The lower outer panel 31 faces the lower part 3b of the inner panel in the front-rear direction. The peripheral edge of the lower outer panel is bonded to the outer bonding piece 17 of the inner panel lower portion 3b with an adhesive. An internal space 35 is formed between the inner panel 3 and the lower outer panel 31. Tail lamps 37 are provided on both the left and right sides of the lower outer panel 31.

A license plate (not shown) is attached to the plate attachment portion 39 provided on the lower outer panel 31. A plate lamp (not shown) that illuminates the license plate is provided on the upper side of the plate mounting portion 39. A lip-shaped sealing member 41 is provided on the upper end edge of the lower outer panel 31. The seal member 41 adheres to the surface of the window panel 7 to prevent moisture or the like from entering the internal space 35, and eliminates a visible gap between the lower outer panel 31 and the window panel 7 to eliminate the visible gap between the lower outer panel 31 and the window panel 7. Make it look good.

The upper outer panel 33 is a horizontally long panel having a shape corresponding to the upper portion 3a of the inner panel and extending in the left-right direction. The upper outer panel 33 faces the inner panel upper portion 3a so as to cover it from above. The peripheral edge of the upper outer panel 33 is bonded to the inner joint piece 13 and the outer joint piece 17 of the inner panel upper portion 3a from the rear with an adhesive. The upper outer panel 33 constitutes a rear spoiler 43 extending rearward. The rear spoiler 43 is formed so as to form a substantially triangular shape in a side view, and has a hollow portion open to the front. An internal space 45 is formed between the inner panel upper portion 3a and the upper outer panel 33.

The window panel 7 is a horizontally long panel extending in the vehicle width direction over the left and right ends of the back door main body 2. The window panel 7 is arranged between the lower outer panel 31 and the upper outer panel 33. The window panel 7 is bonded to each portion of the inner joint piece 13 of the inner panel 3 extending in the vertical direction on both the left and right sides, a portion extending in the horizontal direction on the lower side, and a lower edge portion of the upper outer panel 33 with an adhesive. There is. The window panel 7 closes the window opening 9 of the inner panel 3 on the rear side. Although not shown, the window panel 7 has a transparent window area corresponding to the window opening 9 and a concealing area provided with a black concealing layer located outside the window area.

A harness 47 is inserted from the outside of the back door main body 2 into the internal space 45 between the inner panel upper portion 3a and the upper outer panel 33 of the back door main body 2. The harness 47 is an assembly in which wirings connected to a high mount stop lamp 19, a tail lamp 37, a plate lamp, a wiper device, a latch, and the like are bundled. The harness 47 is an example of a linear component. A first insertion hole 51 for inserting the harness 47 is formed in the outer standing wall 15 provided at the front end portion of the inner panel upper portion 3a. The first insertion hole 51 constitutes the first insertion passage 53.

The harness 47 is inserted into the first insertion hole 51 of the back door main body 2 from the inside of the vehicle body main body 101 through the insertion hole 105 formed at the rear end portion. A wiring pipe 55 through which a harness 47 is inserted is provided between the vehicle body body 101 and the back door body 2. The wiring tube 55 is a rubber tube. The conduit 55 is an example of a sealing member. At least a part of the conduit 55 is formed in a bellows shape, and has flexibility that can correspond to the opening / closing operation of the back door 1. The wiring pipe 55 connects the vehicle body body 101 and the back door body 2, and communicates the internal spaces of the vehicle body body 101 and the back door body 2 with each other.

One open end 55a of the conduit 55 fits with the peripheral edge of the insertion hole 105 of the vehicle body 101. The one end portion 55a is provided between the inner surface of the insertion hole 105 of the vehicle body body 101 and the harness 47, and seals between the inner surface of the insertion hole 105 and the harness 47. The other open end 55b of the conduit 55 fits with the peripheral edge of the first insertion hole 51 of the back door main body 2. The other open end 55b is provided between the inner surface of the first insertion hole 51 and the harness 47, and seals between the inner surface of the first insertion hole 51 and the harness 47.

The sound outside the vehicle enters the internal space 45 through a portion of the back door main body 2 through which the harness 47 is inserted from the outside, that is, a portion of the inner panel upper portion 3a where the first insertion hole 51 is formed. When the sound entering the internal space 45 escapes to the back side (the back side, that is, the rear side of the internal space 45 when the position of the first insertion hole 51 is used as a reference), the insertion hole formed in the upper portion 3a of the inner panel is formed. 21. Propagates into the vehicle interior through a gap between the back door body 2 and the lamp cover 23.

Therefore, as shown in FIGS. 3 to 5, in the back door 1 of the present embodiment, the sound reduction chamber 61 is provided in the internal space 45 between the inner panel upper portion 3a and the upper outer panel 33. The sound reduction chamber 61 is separated from other general spaces 65 in the internal space 45 by a partition wall 63 provided in the upper portion 3a of the inner panel. The partition wall 63 is provided so as to surround the space immediately behind the first insertion hole 51 as a sound reduction chamber 61. That is, the partition wall 63 divides the internal space 45 into a sound reduction chamber 61, which is a relatively small space, and a general space 65, which is a relatively large space.

The sound reduction chamber 61 is partitioned by a part of the outer standing wall 15 on which the first insertion hole 51 is formed and the partition wall 63. A gap (clearance) is provided between the partition wall 63 and the upper outer panel 33. A second insertion hole 67 for inserting the harness 47 is formed in the partition wall 63. The second insertion hole 67 is located in a portion of the partition wall 63 corresponding to the rear side of the first insertion hole 51. The second insertion hole 67 is formed in a notch shape with an open upper portion. The passage formed between the second insertion hole 67 and the upper outer panel 33 constitutes the second insertion passage 69.

At the end of the partition wall 63 on the upper outer panel 33 side, a first seal member 71 is provided so as to straddle the inside and outside of the sound reduction chamber 61. The first seal member 71 is provided over substantially the entire circumference of the partition wall 63 in the circumferential direction. The first seal member 71 is also provided at the end of the partition wall 63 including the inner surface of the second insertion hole 67 along the inner surface of the second insertion hole 67. The first seal member 71 closes the gap between the partition wall 63 and the upper outer panel 33, and seals between the partition wall 63 and the upper outer panel 33.

The harness 47 is arranged in the internal space 45 with the inside of the first insertion hole 51 provided with the first seal member 71 inserted. An O-ring-shaped second seal member 73 is attached to the harness 47. The second seal member 73 is arranged in a portion of the harness 47 located inside the second insertion passage 69 (second insertion hole 67). The second seal member 73 seals between the inner surface of the second insertion passage 69 and the harness 47 together with the first seal member 71. The inner surface of the second insertion passage 69 is an inner surface of the second insertion hole 67 and a surface of the upper outer panel 33 facing the inner surface on the internal space 45 side. That is, the second seal member 73 closes and seals the gap between the harness 47 and the inner surface of the second insertion hole 67 together with the first seal member 71, and closes the gap between the harness 47 and the upper outer panel 33. Seal with.

The first seal member 71 and the second seal member 73 are made of a rubber material, an elastomer, or a resin material having both flexibility and elasticity. For example, the first seal member 71 and the second seal member 73 are each made of foam rubber (rubber sponge) containing EPDM rubber or the like as a main component. Foam rubber has a low density, is excellent in flexibility and elasticity, and has a sound absorbing function, and is therefore suitable as a material for the first sealing member 71 and the second sealing member 73. Foam rubber is open-cell foam rubber. The foam rubber may be a closed-cell foam rubber.

The sound reduction chamber 61 is a space sealed by the first seal member 71 and the second seal member 73. After passing through the wiring pipe 55, the sound outside the vehicle passes through the portion where the first insertion hole 51 is formed in the upper portion 3a of the inner panel and enters the sound reduction chamber 61 in the internal space 45. The sound that has entered the sound reduction chamber 61 is insulated by the partition wall 63 and absorbed by the first seal member 71 and the second seal member 73. Therefore, the propagation of sound from the sound reduction chamber 61 to the general space 65 is hindered. As a result, the sound reduction chamber 61 reduces the sound that escapes to the inner side of the internal space 45 through the portion where the first insertion hole 51 of the inner panel upper portion 3a is formed.

-Characteristics of the first embodiment-
According to the back door 1 of the first embodiment, the sound reduction chamber 61 is provided in the internal space 45 between the inner panel upper portion 3a and the upper outer panel 33, and the harness 47 is inserted from the outside of the back door main body 2. The sound that passes through the portion and exits to the inner side of the internal space 45 is reduced in the sound reduction chamber 61. As a result, it is possible to reduce the noise that reaches the inside of the vehicle through the internal space 45 of the back door main body 2 from the outside of the vehicle.

According to the back door 1 of the first embodiment, both are provided between the inner surface of the second insertion passage 69 for inserting the harness 47 from the sound reduction chamber 61 into another general space 65 in the internal space 45 and the harness 47. Since the first seal member 71 and the second seal member 73 are provided to seal the space between them, it is possible to reduce the sound leaking from the sound reduction chamber 61 to the general space 65 outside the sound reduction chamber 61 through the second insertion passage 69. This is advantageous for reducing the noise that extends from the outside of the vehicle through the internal space 45 of the back door main body 2 to the inside of the vehicle.

According to the back door 1 of the first embodiment, between the inner surface of the first insertion passage 53 for inserting the harness 47 into the sound reduction chamber 61 from the outside of the back door main body 2 and the harness 47, as well as between the two. Since the opening end portion 55b of the wiring pipe 55 is provided as a sealing member for sealing the sound, the sound entering the sound reduction chamber 61 from the outside of the vehicle can be reduced. This is advantageous for reducing the noise that extends from the outside of the vehicle through the internal space 45 of the back door main body 2 to the inside of the vehicle.

According to the back door 1 of the first embodiment, since the sound reduction chamber 61 is separated from the other general space 65 in the internal space 45 by the partition wall 63 provided in the inner panel upper portion 3a, the inner panel 3 and the outer panel 5 The number of parts of the back door 1 can be reduced as compared with the case where the sound reduction chamber 61 is provided by using parts separate from the above.

<< Second Embodiment >>
The vehicle back door 1 of the second embodiment has a sound reduction chamber 61 different from that of the first embodiment. In the present embodiment, the back door 1 is configured in the same manner as in the first embodiment, except that the configuration of the sound reduction chamber 61 is different from that in the first embodiment. FIG. 6 is a view corresponding to FIG. 3 of the back door 1 of the second embodiment. FIG. 7 is a view corresponding to FIG. 4 of the back door 1 of the second embodiment. FIG. 8 is a cross-sectional view showing an operation when the sound reducing chamber 61 is filled with the foamed resin 81 in the process of manufacturing the back door 1 of the second embodiment.

As shown in FIGS. 6 and 7, in the vehicle back door 1 of the second embodiment, the sound reduction chamber includes a part of the outer standing wall 15 on which the first insertion hole 51 is formed and the first embodiment. It is partitioned by a similar partition wall 63. The sound reduction chamber 61 is filled with the foamed resin 81. The foamed resin 81 is, for example, urethane foam. The foamed resin 81 is provided so as to protrude into the general space 65 from the gap between the partition wall 63 and the upper outer panel 33. The harness 47 is embedded in the foamed resin 81 in the sound reduction chamber 61.

An injection hole 83 is formed in a portion of the upper portion 3a of the inner panel that constitutes the bottom surface of the sound reduction chamber 61. The injection hole 83 is closed by a cap member 85 attached from the outside of the back door main body 2. The sound that enters the sound reducing chamber 61 of the internal space 45 through the portion of the inner panel upper portion 3a where the first insertion hole 51 is formed is absorbed by the foamed resin 81 and is insulated by the partition wall 63. Therefore, the propagation of sound from the sound reduction chamber 61 to the general space 65 is hindered. As a result, the sound reduction chamber 61 reduces the sound that escapes to the inner side of the internal space 45 through the portion where the first insertion hole 51 of the inner panel upper portion 3a is formed.

The injection hole 83 is used when the foamed resin 81 is injected into the sound reduction chamber 61. As shown in FIG. 8, when the back door 1 is manufactured, the inner panel 3 and the upper outer panel 33 are joined to provide the harness 47 at a predetermined position in the internal space 45, and in that state, the injection nozzle 201 is inserted into the injection hole. The foamed resin 81 may be filled in the sound reducing chamber 61 by inserting the foamed resin 81 into the sound reducing chamber 61 from the sound reducing chamber 61 and injecting the foamed resin 81 into the sound reducing chamber 61 by the injection nozzle 201.

-Characteristics of the second embodiment-
According to the back door 1 of the second embodiment, since the sound reducing chamber 61 is filled with the foamed resin 81, the back door main body 2 is deep inside the internal space 45 through a portion through which the harness 47 is inserted from the outside. The sound coming out to the side is suitably reduced in the sound reduction chamber 61. As a result, the noise that passes through the internal space 45 of the back door main body 2 from the outside of the vehicle and reaches the interior of the vehicle can be further reduced. In addition, the same effect as that of the first embodiment can be obtained by the back door 1 of the second embodiment.

<< Other Embodiments >>
In the first embodiment, the space between the partition wall 63 and the upper outer panel 33 is closed by the first seal member 71, and the space between the inner surface of the second insertion passage 69 and the harness 47 is the first seal member 71 and the second seal member 71. Although it is said that the seal member 73 is closed, the technique of the present disclosure is not limited to this. One of the first seal member 71 and the second seal member 73 is provided, but the other seal member may not be provided. Further, both the first seal member 71 and the second seal member 73 may not be provided. Even in this case, since the sound entering the sound reduction chamber 61 is insulated by the partition wall 63, the propagation of the sound from the sound reduction chamber 61 to the general space 65 can be hindered.

In the first embodiment, it is assumed that the first sealing member 71 and the second sealing member 73 made of foam rubber are provided as sealing members for sealing between the inner surface of the second insertion passage 69 and the harness 47. However, the technology of the present disclosure is not limited to this. As the sealing member, an adhesive that adheres the inner panel 3 and the outer panel 5 may be used.

In each of the above embodiments, the partition wall 63 is provided on the inner panel upper portion 3a, but the technique of the present disclosure is not limited to this. The partition wall 63 may be provided on the upper outer panel 33 instead of the inner panel upper portion 3a, or may be provided on both the inner panel upper portion 3a and the upper outer panel 33.

In each of the above embodiments, the sound reduction chamber 61 is separated from the other general space 65 in the internal space 45 by the partition wall 63, but the technique of the present disclosure is not limited to this. The sound reduction chamber may be provided by using parts separate from the inner panel and the outer panel. For example, a box body having an opening on one side and a second insertion hole formed in a wall portion corresponding to the opening is installed in the internal space 45 so as to cover the peripheral portion of the first insertion hole 51 in the outer standing wall 15. Therefore, the sound reduction chamber 61 partitioned by the outer standing wall 15 and the box body may be provided.

In each of the above embodiments, an example in which the wiring pipe 55 is used as a sealing member for sealing between the inner surface of the first insertion hole 51 and the harness 47 has been described, but the technique of the present disclosure is not limited to this. The sealing member may be a grommet attached to the peripheral edge of the first insertion hole 51, and any sealing member can be adopted as long as it seals between the inner surface of the first insertion hole 51 and the harness 47. ..

In each of the above embodiments, the harness 47 has been described as an example of the linear component, but the technique of the present disclosure is not limited to this. The harness 47 is only an example of a linear component, and if it is a linear component that is inserted into the internal space 47 from the outside of the back door main body 2, any component such as a hose for sending a cleaning liquid to the wiper device can be used. Can be used as a linear part.

In each of the above embodiments, the outer panel 5 is composed of two divided bodies, a lower outer panel 31 and an upper outer panel 33, but the technique of the present disclosure is not limited to this. The outer panel 5 may be composed of a single panel. In this case, the outer panel 5 includes a lower panel portion corresponding to the lower outer panel 31, an upper panel portion corresponding to the upper outer panel 33, and a middle panel portion having an opening corresponding to the window opening 9 formed between the upper panel portions. Is manufactured by integrally molding.

In each of the above embodiments, the back door 1 is exemplified as the exterior panel for a vehicle, but the technique of the present disclosure is not limited to this. The technique of the present disclosure can also be applied to other vehicle exterior panels such as side doors and roof panels.

As described above, a preferred embodiment has been described as an example of the technique of the present disclosure. However, the technique of the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate. In addition, the components described in the attached drawings and the detailed description may include components that are not essential for solving the problem. Therefore, it should not be immediately determined that those non-essential components are essential by the fact that those non-essential components are described in the accompanying drawings and detailed description.

The technique of the present disclosure is useful for vehicle exterior panels.

1 Back door (vehicle exterior panel)
2 Backdoor body (joint)
3 Inner panel 5 Outer panel 7 Window panel 9 Window opening 11 Inner standing wall 13 Inner joint piece 15 Outer standing wall 17 Outer joint piece 19 High mount stop lamp 21 Insertion hole 23 Lamp cover 25 Device mounting part 27 Concave part 29 Door trim 31 Lower Outer panel 33 Upper outer panel 35 Internal space 37 Tail lamp 39 Plate mounting part 41 Seal member 43 Rear spoiler 45 Internal space 47 Harness (linear part)
51 First insertion hole 53 First insertion passage 55 Wiring pipe (seal member)
61 Sound reduction room 63 Partition wall 65 General space (other space)
67 Second insertion hole 69 Second insertion passage 71 First seal member (seal member)
73 Second seal member (seal member)
81 Foamed resin 83 Injection hole 85 Cap member 101 Body body 103 Back door opening 105 Insertion hole 201 Injection nozzle

Claims (4)

The inner panel (3) and the outer panel (5) joined to the inner panel (3) are provided.
An internal space (45) is formed between the inner panel (3) and the outer panel (5).
An exterior panel for a vehicle in which a linear component (47) is inserted into the internal space (45) from the outside.
In the internal space (45), the internal space (45) is passed through a portion of the joint (2) between the inner panel (3) and the outer panel (5) through which the linear component (47) is inserted from the outside. A vehicle exterior panel characterized by having a sound reduction room (61) on the back side of) to reduce the sound coming out. In the vehicle exterior panel according to claim 1,
In the joint (2), a first insertion passage (53) for inserting the linear component (47) from the outside into the sound reduction chamber (61) and the linear component (47) are reduced. A second insertion passage (69) for inserting the sound chamber (61) into another space (65) in the internal space (45) is formed.
A vehicle exterior characterized in that a sealing member (71,73) is provided between the inner surface of the second insertion passage (69) and the linear component (47) to seal between the two. panel. In the vehicle exterior panel according to claim 2.
An exterior panel for a vehicle, characterized in that a sealing member (55) for sealing between the inner surface of the first insertion passage (53) and the linear component (47) is also provided. In the vehicle exterior panel according to any one of claims 1 to 3.
The sound reduction chamber (61) is separated from the other space (65) in the internal space (45) by a partition wall (63) provided on at least one of the inner panel (3) and the outer panel (5). Exterior panel for vehicles characterized by being.

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