Vehicle upper structure

Abstract

The invention provides a vehicle upper structure. The vehicle upper structure includes: a gap portion extending in a vehicle width direction on a vehicle upper side of a vehicle; a first panel disposed at a vehicle rear side of the gap portion; and a second panel disposed on the upper surface of the first panel in an overlapping manner, the front end portion of the first panel protruding a predetermined length from the front end surface of the second panel being a shelf portion capable of reducing resonance sound caused by air flowing into the gap portion from the front side of the vehicle when the vehicle travels.

Description

Technical Field

[0001] The invention relates to a vehicle superstructure. Background Art

[0002] In the past, a resonance sound improvement structure for a vehicle is known (for example, refer to Japanese Patent Laid-Open No. 2001-225646). The structure has an opening formed on a surface where air flows, and a closed space formed on the inner side of the surface and connected to the opening. The structure has a shelf portion offset from the above-mentioned surface to the closed space side at the downstream side of the air flow in the opening. Relative to the length Ls of the opening in the air flow direction, the length Lt of the shelf portion in the air flow direction is 0.18Ls to 0.53Ls. Relative to the length Ls of the opening in the air flow direction, the height Ht of the shelf portion from the above-mentioned surface is more than 0.17Ls. Summary of the invention

[0003] However, if the shelf portion for reducing the resonance sound of the vehicle when the vehicle is running is formed of only one member, it is necessary to process or shape the member, and the manufacturing process becomes complicated.

[0004] Therefore, an object of the present invention is to provide a vehicle upper structure capable of easily forming a shelf portion for reducing resonance sound of a vehicle when the vehicle is running.

[0005] In order to achieve the above-mentioned object, a first aspect of the vehicle upper structure according to the present invention comprises:

[0006] a gap portion extending in the vehicle width direction at a vehicle upper side of the vehicle;

[0007] a first panel disposed at a vehicle rear side of the gap portion;

[0008] a second panel, which is arranged to overlap the upper surface of the first panel,

[0009] The front end portion of the first panel protruding by a predetermined length from the front end surface of the second panel is provided as a shelf portion capable of reducing resonance sound caused by air flowing into the gap portion from the front side of the vehicle when the vehicle is running.

[0010] According to the invention of the first embodiment, the front end portion of the first panel that protrudes by a predetermined length compared to the front end surface of the second panel is provided as a shelf portion that can reduce the resonance sound caused by the air flowing into the gap portion from the front side of the vehicle when the vehicle is running. In other words, the shelf portion is formed by two components, the first panel and the second panel. Therefore, compared with the case where the shelf portion is formed by only one component, the shelf portion can be formed simply.

[0011] Furthermore, a vehicle upper structure according to a second aspect of the present invention is the vehicle upper structure according to the first aspect, wherein the gap portion is formed between a roof panel and a rear door of the vehicle.

[0012] According to the second aspect of the invention, the resonance sound generated by the gap portion formed between the roof panel and the tailgate in the vehicle can be effectively suppressed.

[0013] Furthermore, a vehicle upper structure according to a third aspect of the present invention is, in the vehicle upper structure according to the second aspect,

[0014] The first panel is a rear spoiler,

[0015] The second panel is a rear spoiler cover.

[0016] According to the third aspect of the invention, since the shelf portion is formed using the rear spoiler and the rear spoiler cover originally included in the rear tailgate, it can be simply formed and its manufacturing cost can be reduced compared to the case where the shelf portion is formed using parts other than the rear spoiler and the rear spoiler cover.

[0017] Furthermore, a fourth aspect of the vehicle upper structure according to the present invention is the vehicle upper structure according to any one of the first to third aspects, wherein

[0018] The length of the shelf portion along the front-rear direction of the vehicle is 1 / 5 to 1 / 2 of the interval of the gap portion along the front-rear direction of the vehicle.

[0019] According to the fourth aspect of the invention, since the length of the shelf portion in the vehicle longitudinal direction is set to 1 / 5 to 1 / 2 of the interval of the gap portion in the vehicle longitudinal direction, the resonance sound generated by the gap portion can be effectively suppressed.

[0020] Furthermore, a fifth aspect of the vehicle upper structure according to the present invention is the vehicle upper structure according to any one of the first to fourth aspects, wherein

[0021] A length from an upper surface of the second panel to an upper surface of the shelf portion along the vehicle vertical direction is equal to or greater than 1 / 5 of a spacing of the gap portion along the vehicle front-rear direction.

[0022] According to the fifth aspect of the invention, since the length along the vehicle vertical direction from the upper surface of the second panel to the upper surface of the shelf portion is set to be greater than 1 / 5 of the interval of the gap portion along the vehicle front and rear direction, the resonance sound generated by the gap portion can be effectively suppressed.

[0023] As described above, according to the present invention, it is possible to easily form a shelf portion for reducing the resonance sound of the vehicle when the vehicle is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like symbols represent like elements, and in which:

[0025] Figure 1 It is a schematic perspective view showing a vehicle including the vehicle superstructure according to the present embodiment.

[0026] Figure 2 for Figure 1 A schematic cross-sectional view taken along line XX.

[0027] Figure 3 In order to show the shelf part involved in this embodiment Figure 2 A detailed enlarged cross-sectional view of the .

[0028] Figure 4 The first modified example of the present embodiment is used to represent the shelf portion of the Figure 3 Schematic cross-sectional view of .

[0029] Figure 5 The shelf portion according to the second modification example of the present embodiment is equivalent to Figure 3 Schematic cross-sectional view of .

[0030] Figure 6 In order to show the shelf portion involved in the comparative example, Figure 3 Schematic cross-sectional view of . DETAILED DESCRIPTION

[0031] Hereinafter, the embodiments of the present invention will be described in detail based on the accompanying drawings. In addition, for the convenience of description, the arrow mark UP appropriately indicated in each of the accompanying drawings is set to the vehicle upper direction, the arrow mark FR is set to the vehicle front direction, and the arrow mark LH is set to the vehicle left direction. Therefore, in the following description, when the up-down, front-back, and left-right directions are recorded without special description, the up-down direction of the vehicle upper-down direction, the front-back direction of the vehicle front-back direction, and the left-right direction of the vehicle left-right direction (vehicle width direction) are set to represent the up-down direction.

[0032] like Figure 1 As shown in FIG. 1 , a gap portion 16 constituting the vehicle upper structure 10 according to the present embodiment is formed between a roof panel 14 constituting the roof of the vehicle 12 and a rear tailgate 20 for opening and closing the luggage compartment of the vehicle 12. Figure 2 As shown, a parting gap extending in the vehicle width direction is formed as a parting portion between a rear end portion 14B in an upper surface 14A of the roof panel 14 and a front end surface 32F of a rear spoiler cover 32 described later constituting a part of the rear tailgate 20. The parting gap serves as a gap portion 16.

[0033] The rear door 20 is arranged at the rear side of the gap 16, and includes a rear door upper outer panel 22, a rear door inner panel 24, and a rear door glass 26. An upper flange 22A and a lower flange 22B are formed integrally at the upper end and the lower end of the rear door upper outer panel 22, respectively. An upper flange 24A and a lower flange 24B are formed integrally at the upper end and the lower end of the rear door inner panel 24, respectively.

[0034] Furthermore, the upper flange portion 22A of the rear tailgate upper outer panel 22 and the upper flange portion 24A of the rear tailgate inner panel 24 are joined so as to overlap each other. The lower flange portion 22B of the rear tailgate upper outer panel 22 and the lower flange portion 24B of the rear tailgate inner panel 24 are joined so as to overlap each other. That is, the rear tailgate upper outer panel 22 and the rear tailgate inner panel 24 form a closed cross-sectional shape extending in the vehicle width direction.

[0035] In addition, in a side view, a rear end portion 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 longitudinal wall portion 14C that is continuous from the rear end portion 14B. A lower end portion 14D of the longitudinal wall portion 14C is bent rearward at a substantially right angle, and the roof panel 14 has an extension portion 14E that is continuous from the lower end portion 14D.

[0036] The extension 14E of the roof panel 14 is bent downwardly from the middle portion thereof along the lower surface of the rear tailgate inner panel 24, and a rear tailgate weather strip 15 is attached to the rear end portion of the extension 14E. The lower surface of the rear tailgate inner panel 24 is pressed against the rear tailgate weather strip 15, thereby forming a sealing structure. In addition, a space portion 18 of a predetermined size is formed below the gap portion 16.

[0037] Furthermore, a resin-made rear spoiler 30 as a first panel is attached to the upper side of the rear tailgate upper outer panel 22 by a fixing device 28 such as a clamp. The rear spoiler 30 is colored black so that it is not conspicuous even if a front end portion 30F described later protrudes toward the gap portion 16. Furthermore, the lower surface of the upper end portion 26A of the rear tailgate glass 26 is joined to the upper surface of the lower flange portion 22B of the rear tailgate upper outer panel 22. The rear portion 30B of the rear spoiler 30 covers the upper end portion 26A of the rear tailgate glass 26 from the upper side.

[0038] A rear spoiler cover 32 made of resin as a second panel is integrally mounted on the upper surface of the rear spoiler 30 in an overlapping manner. The rear spoiler cover 32 is colored in the same color as the vehicle 12, and the rear spoiler 30 is covered from the upper side by the rear spoiler cover 32 except for the front end portion 30F thereof. In addition, a rear end portion 32B at the center portion in the vehicle width direction of the rear spoiler cover 32 is bent downward to approach the rear tailgate glass 26 from the upper side, and covers the rear end surface 30C of the rear spoiler 30 from the rear side.

[0039] The front portion 30A of the rear spoiler 30 and the front portion 32A of the rear spoiler cover 32 protrude forwardly compared to the front end portions of the upper flange portion 22A of the rear tailgate upper outer panel 22 and the upper flange portion 24A of the rear tailgate inner panel 24. The rear spoiler cover 32 is arranged so that its upper surface 32U is substantially flush with the upper surface 14A of the roof panel 14 (see FIG. Figure 3 ).

[0040] In addition, if Figure 3 As shown, the front end portion 30F of the rear spoiler 30 is bent at a predetermined angle θ toward the upper side obliquely forward when viewed from the side, and protrudes toward the front side by a predetermined length L compared to the front end surface 32F of the rear spoiler cover 32. The upper surface portion of the front end portion 30F protruding by the predetermined length L serves as a shelf portion 34 against which the air flowing into the gap portion 16 (space portion 18) from the front side collides, and through the shelf portion 34, a vortex caused by the air flow is not generated on the rear side of the gap portion 16.

[0041] The shelf portion 34 is formed into a flat surface with the normal direction set to the up-down direction, and extends in the vehicle width direction. Moreover, the length L of the shelf portion 34 along the front-back direction is set to 1 / 5 to 1 / 2 of the interval W of the gap portion 16 along the front-back direction. The length H along 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 set to be more than 1 / 5 of the interval W of the gap portion 16 along the front-back direction.

[0042] Specifically, if an example of numerical values ​​is given for explanation, the interval W in the present embodiment becomes W=9.4 mm, the length L becomes L=3.3 mm, and the height becomes H=2.0 mm. Therefore, as shown in the above-mentioned Japanese Patent Application Laid-Open No. 2001-225646, the shelf portion 34 can reduce the resonance sound (wind noise) caused by the air flowing into the gap portion 16 (space portion 18) from the front side when the vehicle 12 is running.

[0043] Next, the operation of the vehicle upper structure 10 according to the present embodiment configured as described above will be described.

[0044] First, a comparative example is described. Figure 6 As shown, in this comparative example, the shelf portion 134 is formed using only the rear spoiler cover 132 (without using the rear spoiler 130). That is, a substantially L-shaped cutout portion 132A is formed on the upper side of the front end portion 132F of the rear spoiler cover 132 when viewed from the side, and the shelf portion 134 is formed by the cutout portion 132A.

[0045] As described above, the shelf portion 134 is formed by only one member, namely the rear spoiler cover 132. Therefore, it is necessary to perform processing or molding for forming the cutout portion 132A on the front end portion 132F of the rear spoiler cover 132. As a result, the manufacturing process becomes complicated.

[0046] In contrast, in this embodiment, if Figure 3 As shown, the shelf portion 34 is formed by two components, the rear spoiler 30 and the rear spoiler cover 32. Therefore, in this embodiment, compared with the case of the comparative example in which the shelf portion 134 is formed by only one component, such as the rear spoiler cover 132, no processing or forming is required. As a result, the manufacturing process does not become complicated. The shelf portion 34 can be simply formed.

[0047] Furthermore, in the present embodiment, the shelf portion 34 is formed using the rear spoiler 30 and the rear spoiler cover 32 originally included in the rear tailgate 20. Therefore, compared with the case where the shelf portion 34 is formed using components other than the rear spoiler 30 and the rear spoiler cover 32, it can be formed more simply and the manufacturing cost can also be reduced.

[0048] In addition, Figure 6 In the case of the comparative example shown in the figure, two edges (upper edge 132Eu and front edge 132Ef) extending in the vehicle width direction are formed at the front end portion 132F of the rear spoiler cover 132 by the shelf portion 134, so there is a possibility that the aesthetics may be impaired. In contrast, in the present embodiment, only the upper edge 32E (see FIG. 1 ) on the front end surface 32F of the rear spoiler cover 32 is Figure 3 ) is formed with an edge extending in the vehicle width direction, so there is no possibility of aesthetics being impaired. In addition, since the rear spoiler 30 is black, the shelf portion 34 protruding to the gap portion 16 is also difficult to see from the outside and is not conspicuous (aesthetics will not be impaired).

[0049] In addition, the length L of the shelf portion 34 along the front-to-back direction is set to 1 / 5 to 1 / 2 (0.2 to 0.5) of the interval W along the front-to-back direction of the gap portion 16. The length along the up-down direction from the upper surface 32U of the rear spoiler cover 32 to the upper surface of the shelf portion 34, that is, the height H is set to be 1 / 5 (0.2) or more of the interval W along the front-to-back direction of the gap portion 16.

[0050] Here, as described in the above-mentioned Japanese Patent Application Laid-Open No. 2001-225646, it is known that when L is 0.2W to 0.5W and H is 0.2W or more, the resonance sound caused by the air flowing into the gap portion 16 (space portion 18) from the front side of the vehicle 12 can be reduced. Therefore, in the present embodiment, the resonance sound generated by the gap portion 16 formed between the roof panel 14 and the rear tailgate 20 can be effectively suppressed, and the comfort in the vehicle cabin can be improved.

[0051] Although the function of the vehicle upper structure 10 according to the present embodiment is as described above, the shape of the front end portion 30F of the rear spoiler 30 constituting the shelf portion 34 is not limited to the shape of the front end portion 30F of the rear spoiler 30 constituting the shelf portion 34. Figure 3 For example, if Figure 4 As in the first modified example shown in the figure, the thickness D of the rear spoiler cover 32 becomes 1 / 5 (0.2) or more of the interval W of the gap portion 16 along the front-rear direction, and the front end portion 30F of the rear spoiler 30 can also be extended by a predetermined length L toward the front side than the front end surface 32F of the rear spoiler cover 32, thereby forming a shelf portion 34.

[0052] In addition, for example, Figure 5 As shown in the second modification example, the front end portion 30F of the rear spoiler 30 is not bent at a predetermined angle θ obliquely forward and upward when viewed from the side, but is bent upward at a substantially right angle to form the shelf portion 34. In this way, the shelf portion 34 formed by the front end portion 30F of the rear spoiler 30 and the front end surface 32F of the rear spoiler cover 32 may be formed in any manner as long as the above-mentioned dimensions (length L and height H) are satisfied with respect to the interval W.

[0053] Although the vehicle upper structure 10 according to the present embodiment has been described above based on the drawings, the vehicle upper structure 10 according to the present embodiment is not limited to the structure shown in the drawings, and can be appropriately changed in design without departing from the gist of the present invention. For example, the gap 16 is not limited to the structure formed between the roof panel 14 and the rear tailgate 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.

Claims

1. A vehicle superstructure, comprising: a gap portion extending in the vehicle width direction at a vehicle upper side of the vehicle; a first panel disposed at a vehicle rear side of the gap portion; a second panel, which is arranged to overlap the upper surface of the first panel, The front end portion of the first panel protruding by a predetermined length from the front end surface of the second panel is provided as a shelf portion capable of reducing resonance sound caused by air flowing into the gap portion from the front side of the vehicle when the vehicle is running.

2. The vehicle superstructure according to claim 1, wherein: The gap portion is formed between a roof panel and a rear door on the vehicle.

3. The vehicle superstructure according to claim 2, wherein: The first panel is a rear spoiler, The second panel is a rear spoiler cover.

4. The vehicle superstructure according to any one of claims 1 to 3, wherein: The length of the shelf portion along the front-rear direction of the vehicle is 1 / 5 to 1 / 2 of the interval of the gap portion along the front-rear direction of the vehicle.

5. The vehicle superstructure according to any one of claims 1 to 3, wherein: A length from an upper surface of the second panel to an upper surface of the shelf portion in the vehicle vertical direction is equal to or greater than 1 / 5 of a spacing of the gap portion in the vehicle front-rear direction.

Images