Vehicle soundproofing structure

Abstract

To avoid contact between the tip of a wire and a lid part without allowing manufacturing costs to increase.SOLUTION: A vehicle sound-proof structure comprises: a locking member that locks an open / closed state of a fuel lid; a side lining 12 that partitions an inner side and an outer side of a trunk compartment; a lid part 16 that closes an opening 14 provided in the side lining; a sound-proof material 24 arranged along an outer side of the side lining; and a wire 26 arranged along the outer side of the side lining and on an outer side with respect to the sound-proof material. One end of the wire is connected to the locking member, and at least a part of the other end of the wire is positioned in the opening 14. A distance enlarging part 32, which is configured to increase a separation distance between an outer surface 28 of the sound-proof material 24 and an inner surface 30 of the lid part 12, is provided at a peripheral edge of the opening 14 of the side lining 12.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a soundproofing structure for a vehicle such as an automobile. [Background technology]

[0002] For example, Patent Document 1 discloses a cover member that closes an opening provided in a side lining of a trunk room.

[0003] In Patent Document 1, the fuel lid is set to a manual unlocking operation position via a wire facing the opening in the side lining. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-158998 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the structure disclosed in Patent Document 1, there is a risk that the tip of the wire facing into the opening may come into contact with the inner surface of the cover member, causing noise.

[0006] To prevent this noise, it is conceivable to wrap noise-preventing tape around the tip of the wire, but this requires additional costs for the noise-preventing tape and processing costs for wrapping the noise-preventing tape around the wire, which could increase manufacturing costs.

[0007] The present invention has been made in consideration of the above points, and aims to provide a soundproofing structure for a vehicle that can avoid contact between the tip of the wire and the lid portion without increasing manufacturing costs. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the present invention provides a vehicle fuel lid comprising: a locking member that locks the open / closed state of a vehicle fuel lid; a wall member that separates the inside and outside of the vehicle compartment; a lid portion that covers an opening provided in the wall member; soundproofing material that is arranged along the outside of the vehicle compartment of the wall member; and a wire that is arranged along the outside of the vehicle compartment of the wall member and further outside the vehicle compartment than the soundproofing material, wherein one end of the wire is connected to the locking member, at least a portion of the other end of the wire is located in the opening, and a distance enlargement portion that increases the distance between the outside surface of the soundproofing material and the wall member is provided on the periphery of the opening. [Effects of the Invention]

[0009] The present invention provides a soundproofing structure for a vehicle that can prevent contact between the tip of the wire and the lid without increasing manufacturing costs. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a partially omitted perspective view showing the interior of a trunk room of a vehicle to which a soundproofing structure according to an embodiment of the present invention is applied; [Figure 2] FIG. 2 is a side view of the trunk room as seen from inside the vehicle body. [Figure 3] 10 is a partially transparent enlarged side view showing the positional relationship between the opening in the side lining and the tip end of the wire. FIG. [Figure 4] 10 is an enlarged schematic cross-sectional view showing a distance enlargement portion provided on the periphery of the opening of the side lining. FIG. [Figure 5] FIG. 4 is an enlarged schematic cross-sectional view showing a thick portion (distance enlargement portion) provided on the periphery of the opening of the side lining. [Figure 6] 10 is a schematic diagram showing a state in which a ring portion of a wire is supported by a thick portion in the present embodiment. FIG. [Figure 7A] 10 is an explanatory diagram showing a state in which a cutout portion is formed by cutting out a part of the soundproofing material facing the opening in the process of manufacturing the thick portion. FIG. [Figure 7B]10 is an explanatory view showing a state in which the arrowhead-shaped portion is folded back and its tip is inserted into a slit in a process of manufacturing the thick-walled portion. FIG. [Figure 8] 7C is an explanatory view showing a state in which the soundproofing material manufactured by the steps of FIG. 7A and FIG. 7B is attached to the periphery of the opening of the side lining. [Figure 9] FIG. 10 is a schematic diagram showing a state in which a ring portion of a wire is supported by a thick portion in a comparative example devised by the present applicant. DETAILED DESCRIPTION OF THE INVENTION

[0011] Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In each drawing, "front and rear" refers to the front-rear direction of the vehicle, "left and right" refers to the width direction of the vehicle (left and right direction), and "up and down" refers to the up and down direction of the vehicle (vertical up and down direction).

[0012] As shown in FIG. 1, when a vehicle to which the soundproofing structure according to this embodiment is applied is viewed from the rear of the vehicle, a side lining 12 is provided on the left wall of a trunk room 10 located at the rear of the vehicle, separating the inside and outside of the trunk room 10. This side lining 12 is provided with an opening 14 that is rhombic (substantially rectangular) in side view (see FIG. 3). The side lining 12 is also provided with an openable and closable lid 16 that closes this opening 14. The trunk room 10 is included in the "vehicle interior," and the side lining 12 functions as a "wall member" that separates the inside and outside of the trunk room 10 (vehicle interior).

[0013] 2, a locking member 20 that locks the open / closed state of a fuel lid 18 provided on the outside of the body panel is disposed inside the rear of the vehicle and above the wheel well. The locking member 20 has a casing 22 that is rectangular in side view, and an electric motor (not shown) that drives the locking member 20 is disposed inside the casing 22. The locking member 20 is also configured with a wire 26 (described later) for manually releasing the locked state.

[0014] As shown in FIG. 4, soundproofing material (insulator) 24 is arranged within the opening 14 along the outer side of the side lining 12. Furthermore, a wire (wire cable) 26 is arranged outside the soundproofing material 24 and along the outer side of the side lining 12. The wire 26 is arranged inside the vehicle body panel (between the inner panel 40 and an outer panel (not shown)). The wire 26 is fixed to the inner panel 40 via clips 42 and 44 (see FIG. 2), which will be described later. One end of the wire 26 is connected to the locking member 20 (see FIG. 2). At least a portion of the other end of the wire 26 is a free end facing into the opening 14 of the side lining 12, and is arranged in a position visible from inside the trunk room 10 (see FIG. 3).

[0015] The wire 26 is used by an operator to manually unlock the locked state of the fuel lid 18 and switch the lid portion 16 of the fuel lid 18 from a closed state to an open state. Note that the side lining 12 and the soundproofing material 24 are not shown in Figure 2. Also, the inner panel 40 is not shown in Figures 4 and 5.

[0016] As shown in Fig. 4, a distance enlargement portion 32 is further provided on the periphery of the opening 14 (lid portion 16), which increases the distance between the outer surface 28 of the soundproofing material 24 and the inner surface 30 of the lid portion 16 compared to other portions. That is, the distance enlargement portion 32 is provided on the soundproofing material 24 at a position on the periphery of the opening 14 that is close to the lid portion 16. At this distance enlargement portion 32, the distance A between the outer surface 28 of the soundproofing material 24 and the inner surface 30 of the lid portion 16 is larger than the distance B between the outer surface 28 of the soundproofing material 24 and the inner surface 30 of the lid portion 16 at another position (a position where the distance enlargement portion 32 is not provided) that is further away from the lid portion 16 (opening 14) (separation distance A > separation distance B). In Figure 4, when the separation distances A and B are set, the inner surface 30 of the lid portion 16 and the inner surface 31 of the side lining 12 are flush with each other, so for convenience, the inner surface 31 of the side lining 12 is used instead of the inner surface 30 of the lid portion 16. This also applies to Figure 5, which will be described later.

[0017] The "periphery of the opening 14" includes the edge of the opening 14 and the area in the vicinity of this edge.

[0018] As shown in Fig. 4, a portion of the free end of the wire 26 contacts the outer surface 34 of the distance enlargement section 32. In the distance enlargement section 32, the distance between the free end of the wire 26 and the lid portion 16 is larger than in other areas where the distance enlargement section 32 is not provided. In this embodiment, by providing the distance enlargement section 32 on the periphery of the opening 14, contact between the tip portion 36, which is the free end of the wire 26 facing the opening 14, and the lid portion 16 is preferably avoided. As a result, noise generated by contact between the tip portion 36 of the wire facing the opening 14 and the lid portion 16 can be preferably prevented.

[0019] The distance enlarging portion 32 has a rectangular cross section (see FIG. 4) and may be provided integrally with the soundproofing material 24, or may be manufactured separately from the soundproofing material 24 and then integrally joined (adhered) to the soundproofing material 24. In the schematic cross section shown in FIG. 4, the distance enlarging portion 32 is configured as a bulging body having a rectangular cross section, but this is not limited to this. For example, as will be described later, the distance enlarging portion 32 may be configured as a thick portion 38 (see FIG. 5) configured to be thick enough to bulge outward by bending a portion of the soundproofing material 24.

[0020] The vehicle body panels that make up the vehicle body are composed of an inner panel 40 (see FIGS. 2 and 3) provided on the inside of the vehicle body and an outer panel provided on the outside of the vehicle body. As shown in FIG. 2, the inner panel 40, which is close to the opening 14 of the side lining 12, is provided with clips that fasten the wire 26 to the vehicle outer side of the side lining 12 at a predetermined distance. The clips are composed of a first clip 42 arranged on the periphery of the opening 14 and a second clip 44 arranged on the side away from the periphery of the opening 14. Note that in this embodiment, multiple clips are arranged to fasten the wire 26, but this is not limiting. For example, the wire 26 may be fastened by a single clip arranged on the periphery of the opening 14.

[0021] The distance enlarging portion 32 is provided so as to be positioned between the first clip 42 and the opening 14 (see FIG. 6). The distance between the outer surface 28 of the soundproofing material 24 of the distance enlarging portion 32 and the outer surface 31 of the side lining 12 is greater than the predetermined distance.

[0022] Next, a case where the distance enlarging portion 32 is formed by the thick portion 38 of the soundproofing material 24 will be described.

[0023] As shown in FIGS. 7A and 7B, the soundproofing material 24 has a cutout portion 46 formed by cutting out a portion of the soundproofing material 24 facing the opening 14, and a folded portion 48 formed by folding back the uncut portion of the soundproofing material 24 facing the opening 14 (an arrowhead-shaped portion 54, described below) toward the periphery of the opening 14. In other words, the cutout portion 46 is formed by cutting out a portion of the soundproofing material 24 facing the opening 14, and the other portion of the soundproofing material 24 facing the opening 14 (an arrowhead-shaped portion 54, described below) is left uncut to form the folded portion 48 (see FIG. 7A). Below a fold 50 of the folded portion 48, a double-thickness portion is formed by the uncut portion of the soundproofing material 24 and the folded portion 48 (see FIG. 5). A linear slit 52 is formed in advance below the folded portion 48 (see FIGS. 7A and 7B).

[0024] 7A, the folded portion 48 has an arrowhead-shaped portion 54 that is arrowhead-shaped in plan view. The arrowhead-shaped portion 54 is composed of an arrowhead portion 54a that is pointed at the tip and narrowed at the base, and a skirt portion 54b that is continuous with the arrowhead portion 54a and has a gentle mountain-like shape. The arrowhead-shaped portion 54 is inserted from the back side through the folded portion 48 into a slit 52 provided on the periphery of the opening 14, so that a part of the arrowhead-shaped portion 54 (arrowhead portion 54a) is exposed to the front side. The thick portion 38 is composed of the double-thickness portion of the folded portion 48.

[0025] Next, a method for manufacturing the thick portion 38 will be described in detail below. First, a portion of the soundproofing material 24 facing the opening 14 of the side lining 12 is cut out to form the cutout 46 (see FIG. 7A). At this time, the lower side (bottom portion 54b) of the arrowhead-shaped portion 54 that is not cut out by the cutout 46 is notched (cut) in a straight line to form the slit 52 in advance. The linear length of this slit 52 is smaller than the maximum width dimension of the arrowhead portion 54a at the tip of the arrowhead-shaped portion 54.

[0026] Next, the arrowhead-shaped portion 54 that is not cut out by the cutout portion 46 is folded back and its tip (arrowhead portion 54a) is inserted into the slit 52 (see FIG. 7B). By inserting a part of the arrowhead-shaped portion 54 (arrowhead portion 54a) into the slit 52, the tip of the arrowhead-shaped portion 54 is exposed to the surface from the slit 52, and the arrowhead portion 54a is caught and locked in the slit.

[0027] The arrowhead-shaped portion 54 is folded back toward the peripheral edge of the opening 14 to form the folded back portion 48. Below the fold 50 of the folded back portion 48, a thick portion 38 consisting of a double-thickness portion is provided by the uncut portion of the soundproofing material 24 and the folded back portion 48 (see FIG. 5). The soundproofing material 24 having the thick portion 38 configured in this manner is set along the peripheral edge of the opening 14 (see FIG. 8). At this time, the soundproofing material 24 is attached along the edge of the opening 14 with the fold 50 (thick portion 38) of the folded back portion 48 of the soundproofing material 24 facing up.

[0028] Therefore, the thick portion 38 formed by the folded portion 48 of the soundproofing material 24 bulges radially inward of the opening 14 compared to other portions, thereby generating an appropriate repulsive force. As a result, the other end of the wire 26 facing the inside of the opening 14 comes into contact with the thick portion 38 of the soundproofing material 24 and is held therein by an appropriate repulsive force, thereby suitably preventing the other end of the wire 26 from coming into contact with the lid portion 16 and generating noise (sliding noise).

[0029] The other end (free end, tip portion 36) of the wire 26 is provided with a ring-shaped ring portion 56 at a portion closer to the opening 14 than the first clip 42 (see FIGS. 3 and 8). The thick portion 38 made of the soundproofing material 24 is located in a range that spans at least a portion of the ring portion 56 (see FIG. 6). That is, the thick portion 38 of the soundproofing material 24 is provided so as to support the bifurcated portion of the ring portion 56 at two points, spanning both sides of the bifurcated portion (see support points P1 and P2 in FIG. 6). This effectively prevents the ring portion 56 from rotating. This point will be described in detail in the section on effects. The position of the thick portion 38 is not limited to the bifurcated portion, but may be arranged so as to cross the space of the ring portion 56.

[0030] Furthermore, at least a portion of the fold 50 of the folded portion 48 of the soundproofing material 24 is located inside the opening 14. In other words, the fold 50 is exposed from the opening 14 (see FIG. 8). That is, because the opening 14 of the side lining 12 has a rectangular shape (approximately diamond shape) in a plan view, the fold 50 of the folded portion 48 is located across two adjacent sides of the rectangular shape (see FIG. 8). As a result, even if, for example, variations in the assembly of the wire 26 cause the wire 26 to protrude into the opening 14 by an amount greater than a predetermined amount, it is possible to prevent the ring portion 56 of the wire 26 from coming into contact with the lid portion 16.

[0031] The vehicle to which the soundproofing structure according to this embodiment is applied is basically configured as described above, and its effects will now be described.

[0032] In this embodiment, a distance enlargement portion 32 is provided in the soundproofing material 24 at the periphery of the opening 14 of the side lining 12 (see FIG. 4). At this distance enlargement portion 32, the separation distance A between the outer surface 28 of the soundproofing material 24 and the inner surface 30 of the lid portion 16 is larger than the separation distance B between the outer surface 28 of the soundproofing material 24 and the inner surface 30 of the lid portion 16 at another position (a position where the distance enlargement portion 32 is not provided) away from the lid portion 16 (opening 14) (separation distance A > separation distance B).

[0033] As a result, in this embodiment, the distance enlarging portion 32 functions as an obstructing member, and it is possible to suitably prevent the wire 26 facing the opening 14 from contacting the lid portion 16. As a result, in this embodiment, it is possible to prevent the generation of noise (sliding noise) that would be generated when the end (free end) of the wire 26 contacts the lid portion 16.

[0034] Furthermore, in this embodiment, there is no need to wrap a separate noise prevention tape around the wire 26, eliminating the need for tape component costs, processing costs, etc., and reducing manufacturing costs. As a result, in this embodiment, a soundproofing structure for a vehicle can be obtained that can prevent contact between the tip of the wire 26 and the inner surface 30 of the lid portion 16 without increasing manufacturing costs.

[0035] Furthermore, in this embodiment, the distance enlarging section 32 can be configured with the thick section 38 of the soundproofing material 24 (see FIG. 5). By configuring the distance enlarging section 32 with the thick section 38 of the soundproofing material 24, the thick section 38 has an appropriate repulsive force, which can more stably support (hold) the wire 26 so that it does not come into contact with the lid section 16. As a result, in this embodiment, the generation of noise (sliding noise) can be further prevented.

[0036] In this embodiment, there are provided a first clip 42 and a second grip 44 that fasten the wire 26 at a predetermined distance on the vehicle outer side of the side lining 12 (see FIG. 2). Also, in this embodiment, a distance enlarging portion 32 is provided between the first clip 42 and the opening 14 (see FIG. 6), and the distance between the outer surface 34 of the distance enlarging portion 32 and the side lining 12 is greater than the predetermined distance.

[0037] In this embodiment, by providing thickened portion 38 in the soundproofing material 24 located between first clip 42 and opening 14, it is possible to thicken only the necessary portion of soundproofing material 24 and suitably prevent the free end of wire 26 facing opening 14 from contacting lid portion 16, thereby preventing noise generation. Furthermore, since it is not necessary to make the other portions of soundproofing material 24 excluding thick portion 38 thick, it is possible to reduce manufacturing costs.

[0038] Furthermore, in this embodiment, the free end of the wire 26 facing the opening 14 of the side lining 12 has a ring-shaped ring portion 56 in a portion closer to the opening 14 than the first grip 42 (see FIG. 3). The thick portion 38 of the soundproofing material 24 is positioned so as to straddle the space of the ring portion 56 (see FIG. 6).

[0039] In this embodiment, the thick portion 38 of the soundproofing material 24 is provided so as to straddle the space of the ring portion 56 and support it at two points (see FIG. 6). In this embodiment, there is a risk that the wire portion between the thick portion 38 and the first clip 42 will rotate around the rotation axis, but by supporting the wire 26 at two points (see P1 and P2 in FIG. 6) so as to straddle the ring portion 56 of the wire 26 around the rotation axis, it is possible to suitably prevent rotation of the ring portion 56.

[0040] In contrast, in the comparative example devised by the present applicant shown in Fig. 9, only one side of ring portion 56 is supported by thick portion 38a (see support point P in Fig. 9), and therefore there is a risk that the wire portion between thick portion 38a and first clip 42 will rotate around the rotation axis. As a result, in the comparative example, ring portion 56 rotates around the rotation axis, which may cause ring portion 56 to come into contact with lid portion 16 and generate noise.

[0041] Furthermore, in this embodiment, the soundproofing material 24 has a cutout portion 46 formed by cutting out a portion of the side lining 12 facing the opening 14, and a folded portion 48 formed by folding back the uncut portion facing the opening 14 toward the periphery of the opening 14 (see FIGS. 7A and 7B). The thick portion 38 is formed by this folded portion 48 (see FIG. 5).

[0042] In this embodiment, an opening must be provided in the soundproofing material 24 to allow for wire operation, but rather than cutting out the entire opening corresponding to the opening 14 in the side lining 12, the opening and the thick portion 38 can be provided in the soundproofing material 24 by folding back a portion of the soundproofing material 24. In this embodiment, a separate member for forming the thick portion 38 is not required, and it is also not necessary to make the peripheral portion of the opening in the soundproofing material 24 particularly thick. This makes it possible to provide the opening and form the thick portion 38 using soundproofing material 24 of a uniform thickness. As a result, this embodiment can further reduce manufacturing costs.

[0043] Furthermore, in this embodiment, the folded portion 48 has an arrowhead-shaped portion 54 that is shaped like an arrowhead, and this arrowhead-shaped portion 54 is inserted into a slit 52 in the soundproofing material 24 located on the periphery of the opening 14 in the side lining 12.

[0044] In this embodiment, simply by inserting the arrowhead-shaped portion 54 provided on the folded portion 48 into the slit 52, the arrowhead-shaped portion 54 becomes caught in the slit 52 and does not come off, eliminating the need for a separate locking means for locking the folded portion 48, such as by attaching it with an adhesive. As a result, in this embodiment, it is easy to assemble the soundproofing material 24 into the opening 14 of the side lining 12, and it is possible to suppress an increase in manufacturing costs due to the locking means.

[0045] Furthermore, in this embodiment, at least a portion of the fold 50 of the folded portion 48 of the soundproofing material 24 is located inside the opening 14 of the side lining 12 (see FIG. 8).

[0046] In this embodiment, even if the wire 26 protrudes more into the opening 14 of the side lining 12 due to variations in the assembly of the wire 26, the fold 50 of the soundproofing material 24 is positioned inside the opening 14 of the side lining 12, thereby preventing the wire 26 from coming into contact with the lid portion 16. In this embodiment, the opening 14 of the side lining 12 has a rectangular shape (approximately diamond shape), and the fold 50 is provided so as to continue along two adjacent sides (see FIG. 8).

[0047] Furthermore, in this embodiment, the locking member 20 is configured to be driven by an electric motor (including an electric actuator) not shown. The wire 26 is configured as a wire for manually releasing the locked state of the locking member 20.

[0048] In this embodiment, when the locking member 20 is driven by an electric motor, it is necessary to provide a function to manually release the locked state as a fail-safe in case of a failure in the electrical system. For this reason, in this embodiment, the wire 26 facing the opening 14 of the side lining 12 functions as a fail-safe, and by suitably avoiding contact of the wire 26 with the lid portion 16, it is possible to prevent noise from being generated. [Explanation of symbols]

[0049] 10 Trunk room (car compartment) 12 Side lining (wall material) 14 Aperture 16 Lid 18 Fuel lid 20 Locking member 24 Soundproofing material 26 wires 32 Distance expansion section 38 Thick wall part 40 Inner panel 42 First Clip (Clip) 46 Cutout 48 Folded section 52 Slit 54 Arrowhead-shaped part 56 Ring section A, B separation distance P1, P2, P support points

Claims

1. a locking member that locks the open / closed state of the fuel lid of the vehicle; a wall member that separates the inside and outside of the vehicle compartment; a lid portion that closes an opening provided in the wall member; a soundproofing material disposed along the outer side of the wall member; and a wire that is arranged along the outer side of the wall member and closer to the outer side of the vehicle cabin than the soundproofing material; Equipped with One end of the wire is connected to the locking member, and at least a portion of the other end of the wire is located in the opening; A soundproofing structure for a vehicle, characterized in that a distance enlarging portion is provided on the periphery of the opening, which increases the distance between the surface of the soundproofing material facing the outside of the vehicle compartment and the wall member.

2. 2. The vehicle soundproofing structure according to claim 1, 10. A soundproofing structure for a vehicle, wherein the distance enlarging portion is formed by a thick portion of the soundproofing material.

3. 3. The vehicle soundproofing structure according to claim 2, a clip for fastening the wire to the outer side of the wall member at a predetermined distance, the distance enlarging portion is provided between the clip and the opening, A soundproofing structure for a vehicle, wherein a distance between the surface of the distance enlargement portion of the soundproofing material facing the outside of the vehicle compartment and the wall member is greater than the predetermined distance.

4. 4. The vehicle soundproofing structure according to claim 3, the other end of the wire has a ring shape at a portion closer to the opening than the clip; A soundproofing structure for a vehicle, characterized in that the thick portion is arranged in a position spanning across the ring shape.

5. 3. The vehicle soundproofing structure according to claim 2, The soundproofing material is a cutout portion in which a part of the portion facing the opening is cut out; a folded portion formed by folding back a portion of the opening that is not cut out toward a peripheral edge of the opening; and A soundproofing structure for a vehicle, wherein the thick portion is formed by the folded portion.

6. 6. The vehicle soundproofing structure according to claim 5, The folded portion has an arrowhead shape, A soundproofing structure for a vehicle, characterized in that the arrowhead shape is inserted into a slit in the soundproofing material provided on the periphery of the opening.

7. 6. The vehicle soundproofing structure according to claim 5, A soundproofing structure for a vehicle, wherein at least a portion of the fold of the folded portion is located inside the opening.

8. 7. The vehicle soundproofing structure according to claim 6, A soundproofing structure for a vehicle, wherein at least a portion of the fold of the folded portion is located inside the opening.

9. 2. The vehicle soundproofing structure according to claim 1, The locking member is electrically driven, 10. A soundproofing structure for a vehicle, wherein the wire is a wire for manually releasing the locked state of the locking member.

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