Vehicle upper structure

Abstract

To provide a vehicle upper structure capable of easily forming a shelf part for reducing a resonance sound of a vehicle during traveling of the vehicle.SOLUTION: A vehicle upper structure 10 comprises: a gap 16 extending in a vehicle width direction on the vehicle upper side of a vehicle 12; a first panel 30 disposed on the vehicle rear side of the gap 16; and a second panel 32 superposed on the upper surface of the first panel 30. A front end 30F of the first panel 30 protruded by a prescribed length more than a front face 32F of the second panel 32 is used as a shelf part 34 capable of reducing a resonance sound generated by air flowing from the vehicle front side into the gap 16 during traveling of the vehicle.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle upper structure. [Background technology]

[0002] A vehicle resonance improvement structure has been known in the past (see, for example, Patent Document 1), which has an opening formed on a surface through which air flows, a closed space formed inside the surface and connected to the opening, and a shelf offset from the surface toward the closed space on the downstream side of the air flow at the opening. The length Lt of this shelf in the air flow direction is set to Lt = 0.18Ls to 0.53Ls relative to the length Ls of the opening in the air flow direction, and the height Ht of this shelf from the surface is set to Ht = 0.17Ls or more relative to the length Ls of the opening in the air flow direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-225646 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the shelf portion for reducing resonance noise of the vehicle when the vehicle is running is formed from only one member, the member needs to be processed or shaped, making the manufacturing process complicated.

[0005] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a vehicle upper structure capable of easily forming a shelf portion for reducing resonance noise of a vehicle while the vehicle is running. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the vehicle upper structure of a first aspect of the present invention comprises a gap extending in the vehicle width direction on the upper side of the vehicle, a first panel arranged on the rear side of the gap, and a second panel arranged superimposed on the upper surface of the first panel, and the front end of the first panel, which protrudes a predetermined length beyond the front end face of the second panel, is formed as a shelf portion capable of reducing resonance noise caused by air flowing into the gap from the front side of the vehicle when the vehicle is traveling.

[0007] According to the first aspect of the invention, the front end of the first panel, which protrudes a predetermined length from the front end face of the second panel, is a shelf that can reduce resonance noise caused by air flowing into the gap from the front side of the vehicle while the vehicle is traveling. In other words, the shelf is formed by two members, the first panel and the second panel. Therefore, the shelf can be formed more easily than when the shelf is formed by only one member.

[0008] A vehicle upper structure of a second aspect according to the present invention is the vehicle upper structure of the first aspect, in which the gap is formed between a roof panel and a back door of the vehicle.

[0009] According to the second aspect of the invention, resonance noise generated from the gap formed between the roof panel and the back door of the vehicle is effectively suppressed.

[0010] A vehicle upper structure of a third aspect according to the present invention is the vehicle upper structure of the second aspect, in which the first panel is a rear spoiler, and the second panel is a rear spoiler cover.

[0011] According to the third aspect of the invention, the shelf portion is formed using the rear spoiler and rear spoiler cover that are originally included in the tailgate, so that it is easier to form and the manufacturing costs are reduced compared to when the shelf portion is formed from something other than the rear spoiler and rear spoiler cover.

[0012] In addition, a fourth aspect of the vehicle upper structure according to the present invention is a vehicle upper structure of any one of the first to third aspects, wherein the length of the shelf portion along the fore-and-aft direction of the vehicle is 1 / 5 to 1 / 2 of the spacing of the gap portion along the fore-and-aft direction of the vehicle.

[0013] According to the fourth aspect of the invention, the length of the shelf portion along the vehicle fore-and-aft direction is 1 / 5 to 1 / 2 of the spacing of the gap portion along the vehicle fore-and-aft direction, thereby effectively suppressing resonance noise generated from the gap portion.

[0014] In addition, a fifth aspect of the vehicle upper structure according to the present invention is a vehicle upper structure of any one of the first to fourth aspects, wherein the length along the vehicle up-down direction from the upper surface of the second panel to the upper surface of the shelf portion is 1 / 5 or more of the spacing of the gap portion along the vehicle fore-aft direction.

[0015] According to the fifth aspect of the invention, the length in the vehicle's vertical direction from the upper surface of the second panel to the upper surface of the shelf portion is at least 1 / 5 of the distance of the gap in the vehicle's fore-aft direction, thereby effectively suppressing resonance noise generated from the gap. Effect of the Invention

[0016] As described above, according to the present invention, a shelf portion for reducing resonance noise of a vehicle when the vehicle is traveling can be easily formed. [Brief description of the drawings]

[0017] [Figure 1] 1 is a schematic perspective view showing a vehicle equipped with a vehicle upper structure according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic cross-sectional view taken along line XX in FIG. [Diagram 3] 3 is a partially enlarged schematic cross-sectional view of FIG. 2 showing the shelf portion according to the present embodiment. [Figure 4] 4 is a schematic cross-sectional view corresponding to FIG. 3 and showing a shelf portion according to a first modified example of the embodiment. FIG. [Diagram 5] 5 is a schematic cross-sectional view corresponding to FIG. 3 and showing a shelf portion according to a second modified example of the embodiment. FIG. [Figure 6] 4 is a schematic cross-sectional view corresponding to FIG. 3 and showing a shelf portion according to a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. For convenience of explanation, the arrow UP shown in each drawing indicates the vehicle upward direction, the arrow FR indicates the vehicle forward direction, and the arrow LH indicates the vehicle leftward direction. Therefore, in the following explanation, when the directions of up / down, front / rear, and left / right are described without special mention, they refer to up / down in the vehicle up / down direction, front / rear in the vehicle front / rear direction, and left / right in the vehicle left / right direction (vehicle width direction).

[0019] 1, a gap 16 constituting the vehicle upper structure 10 according to this embodiment is formed between a roof panel 14 constituting the roof of the vehicle 12 and a back door 20 that opens and closes the luggage compartment of the vehicle 12. That is, as shown in FIG. 2, a parting gap extending in the vehicle width direction as a parting gap is formed between a rear end portion 14B of an upper surface 14A of the roof panel 14 and a front end surface 32F of a rear spoiler cover 32 (described later) that constitutes a part of the back door 20, and this parting gap serves as the gap 16.

[0020] The back door 20 is disposed on the rear side of the gap 16, and has a back door upper outer panel 22, a back door inside panel 24, and a back door glass 26. An upper flange portion 22A and a lower flange portion 22B are integrally formed at the upper end and the lower end of the back door upper outer panel 22, respectively, and an upper flange portion 24A and a lower flange portion 24B are integrally formed at the upper end and the lower end of the back door inside panel 24, respectively.

[0021] The upper flange portion 22A of the back door upper outer panel 22 and the upper flange portion 24A of the back door inside panel 24 are overlapped and joined to each other, and the lower flange portion 22B of the back door upper outer panel 22 and the lower flange portion 24B of the back door inside panel 24 are overlapped and joined to each other. In other words, the back door upper outer panel 22 and the back door inside panel 24 form a closed cross-sectional shape extending in the vehicle width direction.

[0022] In addition, in a side view, a rear end 14B of an upper surface 14A of the roof panel 14 is bent downward at a substantially right angle, and the roof panel 14 has a vertical wall portion 14C continuing from the rear end 14B. A lower end 14D of the vertical wall portion 14C is bent rearward at a substantially right angle, and the roof panel 14 has an extension portion 14E continuing from the lower end 14D.

[0023] The extending portion 14E of the roof panel 14 is curved downward from its middle portion so as to fit along the underside of the back door inside panel 24, and a back door weather strip 15 is attached to the rear end of the extending portion 14E. A seal structure is formed by pressing the underside of the back door inside panel 24 against the back door weather strip 15. This forms a space 18 of a predetermined size below the gap 16.

[0024] A resin rear spoiler 30 serving as a first panel is attached to the upper side of the back door upper outer panel 22 by fasteners 28 such as clips. The rear spoiler 30 is colored black so that a front end 30F, which will be described later, is not noticeable even if it protrudes into the gap 16. The lower surface of the upper end 26A of the back door glass 26 is joined to the upper surface of the lower flange portion 22B of the back door upper outer panel 22, and the rear portion 30B of the rear spoiler 30 covers the upper end 26A of the back door glass 26 from above.

[0025] A resin rear spoiler cover 32 serving as a second panel is superimposed and integrally attached to the upper surface of the rear spoiler 30. The rear spoiler cover 32 is colored the same as the vehicle 12, and the rear spoiler 30 is covered from above by the rear spoiler cover 32 except for its front end 30F. A rear end 32B in the center of the rear spoiler cover 32 in the vehicle width direction is bent downward and is adjacent to the back door glass 26 from above, so as to cover a rear end surface 30C of the rear spoiler 30 from the rear side.

[0026] In addition, the front portion 30A of the rear spoiler 30 and the front portion 32A of the rear spoiler cover 32 protrude forward from the respective front ends of the upper flange portion 22A of the back door upper outer panel 22 and the upper flange portion 24A of the back door inside panel 24. The rear spoiler cover 32 is disposed so that its upper surface 32U is substantially flush with the upper surface 14A of the roof panel 14 (see FIG. 3).

[0027] 3, the front end 30F of the rear spoiler 30 is bent obliquely upward and forward at a predetermined angle θ in a side view, and protrudes a predetermined length L forward from a front end surface 32F of the rear spoiler cover 32. The upper surface portion of the front end 30F protruding the predetermined length L serves as a shelf 34 with which air flowing from the front side into the gap 16 (space 18) collides, and this shelf 34 prevents vortexes caused by airflow on the rear side of the gap 16.

[0028] The shelf portion 34 is formed in a flat surface shape with the normal direction being the up-down direction, and extends in the vehicle width direction. The length L of the shelf portion 34 in the front-rear direction is 1 / 5 to 1 / 2 the distance W of the gap portion 16 in the front-rear direction, and the length H in the up-down direction from the upper surface 32U of the rear spoiler cover 32 to the upper surface of the shelf portion 34 (hereinafter referred to as "height") is 1 / 5 or more of the distance W of the gap portion 16 in the front-rear direction.

[0029] To explain this by taking an example of specific numerical values, in this embodiment, the distance W is W=9.4 mm, the length L is L=3.3 mm, and the height H is H=2.0 mm. Therefore, as shown in the above-mentioned JP-A-2001-225646, this shelf portion 34 makes it possible to reduce resonance noise (wind noise) caused by air flowing into the gap portion 16 (space portion 18) from the front side while the vehicle 12 is traveling.

[0030] Next, the operation of the vehicle upper structure 10 according to this embodiment configured as above will be described.

[0031] First, a comparative example will be described. As shown in Fig. 6, in this comparative example, a shelf portion 134 is formed only by the rear spoiler cover 132 (without using the rear spoiler 130). That is, a cutout portion 132A having a substantially "L" shape in a side view is formed on the upper side of a front end portion 132F of the rear spoiler cover 132, and the shelf portion 134 is formed by the cutout portion 132A.

[0032] In this way, if the shelf portion 134 is formed from only one component, the rear spoiler cover 132, processing or molding is required to form the cutout portion 132A in the front end portion 132F of the rear spoiler cover 132, making the manufacturing process complicated.

[0033] 3, in this embodiment, the shelf portion 34 is formed from two members, the rear spoiler 30 and the rear spoiler cover 32. Therefore, in this embodiment, compared to the comparative example in which the shelf portion 134 is formed from only one member, the rear spoiler cover 132, no processing or molding is required, so the manufacturing process is not complicated and the shelf portion 34 can be formed easily.

[0034] Moreover, in this embodiment, the shelf portion 34 is formed using the rear spoiler 30 and rear spoiler cover 32 that are originally included in the tailgate 20, so that it can be formed more easily and the manufacturing costs can be reduced compared to when the shelf portion 34 is formed using something other than the rear spoiler 30 and rear spoiler cover 32.

[0035] 6, the shelf portion 134 forms two edges (upper edge 132Eu and front edge 132Ef) extending in the vehicle width direction at the front end 132F of the rear spoiler cover 132, which may impair the appearance. In contrast, in this embodiment, an edge extending in the vehicle width direction is formed only at the upper edge 32E (see FIG. 3) at the front end surface 32F of the rear spoiler cover 32, so there is no risk of impairing the appearance. In addition, because the rear spoiler 30 is black, the shelf portion 34 protruding into the gap 16 is difficult to see from the outside and is not noticeable (the appearance is not impaired).

[0036] In addition, the length L of the shelf portion 34 along the fore-and-aft direction is 1 / 5 to 1 / 2 (0.2 to 0.5) of the spacing W of the gap portion 16 along the fore-and-aft direction, and the height H, which is the length along the up-and-down direction from the upper surface 32U of the rear spoiler cover 32 to the upper surface of the shelf portion 34, is 1 / 5 (0.2) or more of the spacing W of the gap portion 16 along the fore-and-aft direction.

[0037] Here, it is publicly known, as described in the above-mentioned Japanese Patent Application Laid-Open Publication No. 2001-225646, that when L=0.2W to 0.5W and H=0.2W or more, it is possible to reduce resonance noise caused by air flowing into the gap 16 (space 18) from the front side of the vehicle 12. Therefore, in this embodiment, it is possible to effectively suppress resonance noise generated from the gap 16 formed between the roof panel 14 and the back door 20, thereby improving the comfort inside the vehicle cabin.

[0038] The function of the vehicle upper structure 10 according to this embodiment has been described above, but the shape of the front end 30F of the rear spoiler 30 constituting the shelf portion 34 is not limited to the shape shown in Fig. 3. For example, as in a first modified example shown in Fig. 4, if the thickness D of the rear spoiler cover 32 is equal to or greater than 1 / 5 (0.2) of the distance W along the front-rear direction of the gap portion 16, the front end 30F of the rear spoiler 30 may be extended forward by a predetermined length L beyond the front end face 32F of the rear spoiler cover 32 to form the shelf portion 34.

[0039] 5, the front end 30F of the rear spoiler 30 may be bent upward at a substantially right angle to form a shelf portion 34, rather than being bent diagonally upward and forward at a predetermined angle θ, as seen in a side view. In this manner, the shelf portion 34 formed by the front end 30F of the rear spoiler 30 and the front end face 32F of the rear spoiler cover 32 may be configured in any manner as long as the above dimensions (length L and height H) with respect to the interval W are satisfied.

[0040] Although the vehicle upper structure 10 according to the present embodiment has been described above with reference to the drawings, the vehicle upper structure 10 according to the present embodiment is not limited to the one shown in the drawings, and can be appropriately modified in design within the scope of the present invention. For example, the gap 16 is not limited to a configuration formed between the roof panel 14 and the back door 20 of the vehicle 12. Therefore, the first panel is not limited to the rear spoiler 30 and the second panel is not limited to the rear spoiler cover 32. [Explanation of symbols]

[0041] 10 Vehicle Superstructure 12 Vehicles 14 Roof Panel 16 Gap 20. Backdoor 30 Rear spoiler (first panel) 30F front end 32 Rear spoiler cover (second panel) 32F front end surface 34 Shed

Claims

1. A gap portion extending in a vehicle width direction on an upper side of the vehicle; A first panel disposed on a vehicle rear side of the gap; A second panel disposed on an upper surface of the first panel; Equipped with A vehicle upper structure in which a front end portion of the first panel, which protrudes a predetermined length beyond the front end surface of the second panel, is formed as a shelf portion that can reduce resonance noise caused by air flowing into the gap from the front side of the vehicle when the vehicle is traveling.

2. The vehicle upper structure according to claim 1 , wherein the gap is formed between a roof panel and a back door of the vehicle.

3. 3. The vehicle upper structure according to claim 2, wherein the first panel is a rear spoiler, and the second panel is a rear spoiler cover.

4. The vehicle upper structure according to any one of claims 1 to 3, wherein the length of the shelf portion along the vehicle fore-and-aft direction is 1 / 5 to 1 / 2 of the spacing of the gap portion along the vehicle fore-and-aft direction.

5. A vehicle upper structure as described in any one of claims 1 to 3, wherein the length along the vehicle vertical direction from the upper surface of the second panel to the upper surface of the shelf portion is 1 / 5 or more of the spacing along the vehicle longitudinal direction of the gap portion.

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