Front body structure

Abstract

The present invention provides a vehicle body front structure capable of reducing wind noise. The structure comprises a front window glass (3) and a lamp body unit (4) arranged side by side along the end face (3a) of the front window glass (3) in the vehicle width direction. The lamp body unit (4) comprises a lamp body (5) and an external lens (6) arranged along the end face (3a) of the front window glass (3) and transmitting light of the lamp body (5). A gap (10) is provided between the front window glass (3) and the external lens (6). The external lens (6) comprises a front portion (7) facing the front of the vehicle and a side portion (8) extending from the side end (7a) of the front window glass of the front portion (7) toward the rear of the vehicle. A chamfered portion (6a) is provided at a protruding corner (11) formed by the front portion (7) and the side portion (8).

Description

Technical Field

[0001] The invention relates to a vehicle body front structure. Background Art

[0002] Conventionally, a vehicle body front structure has been proposed in which a front lamp unit is disposed at both left and right ends of a front window glass on the vehicle interior side and a side turn lamp unit is mounted at a triangular corner portion of a front connection root of a glass frame of a front door (for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 6-127434 Summary of the invention

[0006] Problems to be solved by the invention

[0007] When the front lamp unit is arranged outside the vehicle body in such a conventional design of the front structure of the vehicle body, the air flowing on the surface of the front window glass toward the left and right ends of the vehicle interior vibrates at the edge (edge) of the front lamp unit to generate wind noise. Therefore, there is room for further improvement.

[0008] An object of the present invention is to provide a vehicle body front structure capable of reducing wind noise.

[0009] Means for solving problems

[0010] The front structure of the vehicle body of the present invention is characterized in that it is provided with a front window glass and a lamp body unit arranged side by side along the end face of the front window glass in the vehicle width direction. The lamp body unit has a lamp body and an outer lens arranged along the end face of the front window glass and transmitting light from the lamp body. A gap is provided between the front window glass and the outer lens, and the outer lens has a front portion facing the front of the vehicle and a side portion extending from the side end of the front window glass of the front portion to the rear of the vehicle, and a chamfered portion is provided at a protruding corner portion formed by the front portion and the side portion.

[0011] Effects of the Invention

[0012] According to the present invention, it is possible to provide a vehicle body front structure capable of reducing wind noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The vehicle body front structure according to the embodiment of the present invention is a perspective view for explaining the configuration of the vehicle body front portion.

[0014] Figure 2 The front structure of the vehicle body according to the embodiment is described below. Figure 1 Cross-sectional view showing the position of line II-II.

[0015] Figure 3 The vehicle body front structure of the embodiment is Figure 2 Enlarged cross-sectional view of section III.

[0016] Figure 4 This is a graph showing an example of the relationship between the depth dimension of the gap and the frequency of the generated sound in the vehicle body front structure according to the embodiment.

[0017] Figure 5 This is a graph showing an example of the relationship between the depth dimension of the gap and the frequency of the generated sound in the vehicle body front structure according to the embodiment.

[0018] Description of Reference Numerals

[0019] 3 Front window glass

[0020] 3a End face

[0021] 4 Lamp unit

[0022] 5. Lamp body

[0023] 6 External lens

[0024] 6a Chamfer

[0025] 7 Front

[0026] 7a Front window glass side end

[0027] 8 Side face

[0028] 9 External side of outer panel

[0029] 10 Gap

[0030] 11. Protruding corners DETAILED DESCRIPTION

[0031] Hereinafter, an embodiment of the present invention will be described with reference to appropriate drawings. The same components are marked with the same reference numerals and repeated descriptions are omitted. When describing directions, unless otherwise specified, the description is basically based on the front and rear, left and right, or up and down directions as viewed from the driver. In addition, the meaning of "vehicle width direction" is the same as that of "left and right direction".

[0032] The configuration of the vehicle body front structure according to the present embodiment will be described.

[0033] like Figure 1 As shown, a front portion 2 of a vehicle body 1 includes a windshield glass 3 that stands substantially vertically and a pair of left and right lamp body units 4 , 4 .

[0034] The front window glass 3 is substantially square in shape when viewed from the front, with each end face 3a, 3a in the vehicle width direction (see Figure 2 ) is curved and inclined toward the rear of the vehicle.

[0035] The lamp body unit 4 is disposed adjacent to the outer side of the front windshield 3 in the vehicle width direction. In addition, the lamp body unit 4 is disposed at the corner portion 2a of the vehicle body 1 and is disposed along the side from the front of the vehicle body 1. In addition, the upper end of the lamp body unit 4 is disposed at the middle position of the front windshield 3 in the vertical direction. And the lower end of the lamp body unit 4 is bent and extended along the lower end of the front windshield 3.

[0036] In the embodiment, the left and right lamp body units 4, 4 are bilaterally symmetrical. Therefore, here, the lamp body unit 4 provided at the left corner 2a is described, and the lamp body unit 4 provided at the right corner 2a is omitted because it has substantially the same structure.

[0037] The lamp unit 4 includes a lamp body 5 including a light emitting body such as an LED, and a transparent outer lens 6 which is arranged along the end surface 3 a of the front window glass 3 and transmits light from the lamp body 5 .

[0038] like Figure 2 As shown, a gap 10 is provided between the windshield glass 3 and the outer lens 6. The gap 10 has a substantially constant dimension W in the vehicle width direction and is provided along the up-down direction.

[0039] like Figure 3 As shown, the dimension W in the vehicle width direction is about 4 mm. In addition, the bottom 10a of the gap 10 located at the rear of the vehicle is formed by extending the outer side surface 9 of the outer panel or a part of the corner portion 2a in a vertical wall shape.

[0040] The gap 10 of this embodiment is formed in a groove shape between the side wall of the front pillar 2b of the corner portion 2a and the side portion 8 of the lamp body unit 4 facing each other, from the inlet opening in front of the vehicle body to the bottom 10a at the rear of the vehicle. The gap 10 is connected in the front-rear direction of the vehicle from the inlet opening in front of the vehicle body to the bottom 10a at the rear.

[0041] In addition, the depth dimension D of the gap 10 in the vehicle front-rear direction from the inlet opening to the bottom 10 a is set to be 100 mm or more.

[0042] Figure 4 : is a graph showing an example of the relationship between the depth dimension D (mm) of the gap 10 and the frequency (Hz) of the generated sound. Figure 5 This is a graph showing an example of the relationship between the depth dimension D (mm) of the gap and the frequency (Hz) of the generated sound.

[0043] By making the depth dimension D shallow, the frequency of the generated sound becomes high frequency and is easily recognized as an abnormal sound. In addition, it is known that the size of the dimension W of the gap 10 in the vehicle width direction generally has little influence on the generated sound.

[0044] Therefore, the depth dimension D is set to be sufficiently larger than the dimension W of the gap 10 in the vehicle width direction (D>W), and is preferably set to be at least 35 mm or more in order to prevent high-frequency noise from being generated.

[0045] The outer lens 6 is engaged with a resin housing (not shown) mounted on the front portion 2 and supported at a desired position. Figure 3 As shown, the outer lens 6 of this embodiment has a front portion 7 facing the front of the vehicle and a side portion 8 extending from a front window glass side end 7a of the front portion 7 to the rear of the vehicle. The front portion 7 of the outer lens 6 is made of a transparent resin material, and the side portion 8 is formed by two-color molding using a transparent resin material 8c and a resin material 8b colored black.

[0046] The front portion 7 is configured to be inclined rearward at substantially the same angle as the front window glass 3. The side surface portion 8 is arranged so that the surface extending direction is substantially along the vehicle front-rear direction and the vehicle up-down direction.

[0047] The external lens 6 of the present embodiment is butted in a continuous manner at a predetermined angle α (in the present embodiment, α=about 60 degrees) at a protruding corner 11 formed by the front portion 7 and the side portion 8. The external lens 6 of the present embodiment is formed by integrally molding the front portion 7 and the side portion 8. The protruding corner 11 is a chamfered portion 6a formed by chamfering in a range of 3 mm in a length dimension w1 along the front portion 7 from the end 7a on the front window glass side of the front portion 7 to the extended intersection with the side portion 8, i.e., the imaginary vertex f, and in a range of 5 mm in a length dimension d2 along the side portion 8 from the front end 8a of the side portion 8 to the extended intersection with the front portion 7, i.e., the imaginary vertex f.

[0048] In addition, the front portion 7 is curved toward the rear as it approaches the vehicle width side. Figure 1 ) is configured to be connected to the outer side surface 9 of the outer panel at a predetermined inclination angle, for example, an inclination angle of about 5 degrees, relative to the outer side surface 9 of the outer panel.

[0049] The protruding corner 11 of the outer lens 6 has a flat chamfered portion 6a having a predetermined inclination angle with respect to the vehicle longitudinal direction over substantially the entire vertical direction. The chamfered portion 6a is connected to the front portion 7 and the side portion 8 to form substantially the same angle.

[0050] like Figure 3 As shown, when an imaginary line L is drawn along the surface 3 b of the windshield 3 toward the outer lens 6 , at least a portion of the chamfered portion 6 a protrudes toward the front of the vehicle more than the imaginary line L.

[0051] like Figure 2As shown, the front window glass 3 is provided with a rubber sealing member 20, a molded member 22 and a sealing tape 23 (see Figure 3 ) are supported by the left and right front pillars 2b of the vehicle body 1. The molded member 22 is integrally provided with a lip portion 24.

[0052] The lip portion 24 has its front end 25 locked in the groove 3c formed along the end surface 3a of the front window glass 3. Thus, the lip portion 24 and the outer lens 6 are separated by a predetermined dimension W in the width direction (see Figure 3 ) method.

[0053] A rear lip portion 26 is formed rearwardly on the opposite side of the lip portion 24 of the molded member 22. The rear lip portion 26 is bent at its inner side surface and attached to the outer side surface of the corner of the front pillar 2b.

[0054] As described above, the vehicle body front structure of this embodiment includes the windshield 3 and the lamp unit 4 arranged along the end surface 3a of the windshield 3 in the vehicle width direction. The lamp unit 4 has a lamp body 5 and an outer lens 6 arranged along the end surface 3a of the windshield 3 and transmitting light from the lamp body 5.

[0055] A gap 10 is provided between the windshield 3 and the outer lens 6. The outer lens 6 has a front portion 7 facing the front of the vehicle and a side portion 8 extending from a windshield side end 7a of the front portion 7 toward the rear of the vehicle. A chamfered portion 6a is provided at a protruding corner 11 formed by the front portion 7 and the side portion 8.

[0056] The vehicle body front structure of the present embodiment configured as described above can reduce wind noise.

[0057] Specifically, the air flow F flowing toward the outer side in the vehicle width direction along the surface 3b of the windshield 3 abuts against the chamfered portion 6a provided at the windshield side end 7a of the outer lens 6. Therefore, the air flow F abutting against the chamfered portion 6a becomes turbulent. Therefore, compared with the case where there is no chamfered portion 6a, the air vibration that generates noise can be suppressed.

[0058] For example, in the present embodiment, the front portion 7 and the side portion 8 are connected at an acute angle of α=approximately 60 degrees.

[0059] Even in such a shape, the chamfered portion 6 a can be formed to suppress air vibration, thereby reducing wind noise heard as noise.

[0060] For example, Figure 1 As shown, even if the windshield glass 3 is erected substantially vertically and the lamp body units 4, 4 are arranged at the side edges, the wind noise can be reduced. Therefore, the degree of freedom in the shape of the lamp body unit 4 and the windshield glass 3 can be increased.

[0061] In addition, if Figure 3As shown, when an imaginary line L is drawn along the surface 3 b of the windshield 3 toward the outer lens 6 , at least a portion of the chamfered portion 6 a protrudes toward the front of the vehicle more than the imaginary line L.

[0062] Therefore, at least a part of the air flow F flowing along the surface 3b of the windshield 3 abuts against the protruding chamfered portion 6a from the front side. Compared with a case where there is no chamfered portion 6a, air vibration that generates noise can be suppressed.

[0063] In addition, if Figure 3 As shown, a depth dimension D of the gap 10 in the vehicle front-rear direction is greater than a dimension W of the gap 10 in the vehicle width direction (D>W).

[0064] Therefore, when the gap 10 is deep, high-frequency wind noise heard as noise can be reduced compared to the case where the gap 10 is shallow.

[0065] In addition, the gap 10 of the present embodiment is formed in a continuous manner from the inlet opening to the bottom 10a in the vehicle front-rear direction via the space between the left and right side walls of the corner portion 2a and the side portion 8 of the opposite lamp body unit 4. Therefore, the gap 10 can be set deep, and the wind noise heard as noise can be reduced.

[0066] And, if Figure 3 As shown, the vehicle body front structure of this embodiment is provided with a lip 24 of a molded member 22 that supports the windshield glass 3 on a front pillar 2b located at a corner of the vehicle body 1. The lip 24 is separated from the outer lens 6 by a dimension W in the width direction.

[0067] Therefore, the depth of the gap 10 can be further increased, and the wind noise can be reduced.

[0068] In this embodiment, if Figure 3 As shown, even if the outer lens 6 is close to the left and right end faces 3a of the front window glass 3, the air flow F from the surface 3b of the front window glass 3 abuts against the chamfered portion 6a to reduce wind noise. Therefore, the lamp body unit 4 can be arranged side by side along the left and right end faces 3a of the front window glass 3, and the practically beneficial effect of improving the degree of freedom of shape is exerted.

[0069] The present invention is not limited to the above-mentioned embodiments, and various modifications are possible. The above-mentioned embodiments are illustrative examples for facilitating understanding of the present invention, and are not limited to having all the described structures. In addition, a part of the structure of a certain embodiment can be replaced with the structure of other embodiments, and the structure of other embodiments can be added to the structure of a certain embodiment. In addition, a part of the structure of each embodiment can be deleted, or other structures can be added or replaced. For example, possible modifications to the above-mentioned embodiments are as follows.

[0070] In the present embodiment, the chamfered portion 6a of the external lens 6 is provided at a predetermined angle α=about 60 degrees at a protruding corner 11 formed by the front portion 7 and the side portion 8. However, this is not particularly limited. For example, it may also be provided at a protruding corner 11 formed by the front portion 7 and the side portion 8 being butted at another angle α. That is, as long as the chamfered portion 6a is provided at the protruding corner 11 formed by the front portion 7 and the side portion 8, the position, angle, shape, number and material of the chamfered portion 6a are not limited.

[0071] In addition, the chamfered portion 6a provided at the protruding corner portion 11 is not limited to a flat structure having a predetermined inclination angle with respect to the front-rear direction of the vehicle as in the present embodiment. For example, it may be a shape curved in a concave-convex manner in the inward and outward directions of the surface, or one or more may be provided in a part of the protruding corner portion 11. That is, the shape of the chamfered portion 6a provided at the protruding corner portion 11 composed of the front portion 7 and the side portion 8 is not particularly limited.

[0072] In addition, the outer lens 6 of this embodiment is formed by two-color molding of a transparent resin material and a resin material colored in black, but it is not particularly limited to this. A semi-transparent lens with concave and convex or a resin material colored in a color other than black can also be used appropriately. In addition, the side surface 8 can also be made so that the rear part from the part where the chamfered part 6a is formed is not the outer lens 6, but can be replaced by other parts such as a shell.

Claims

1. A vehicle body front structure, which is a vehicle body front structure, characterized in that: include: A front window glass, which is a front window glass located in front of the vehicle in the front-rear direction of the vehicle; as well as a lamp body unit arranged in parallel along the end surface of the front windshield glass in the vehicle width direction of the vehicle, The lamp unit includes a lamp body and an outer lens, wherein the outer lens is arranged along the end surface of the front window glass and transmits light from the lamp body. A gap is provided between the front window glass and the outer lens, The outer lens has a front portion facing forward in the front-rear direction of the vehicle and a side portion extending from the windshield-side end of the front portion toward the rear of the vehicle in the front-rear direction of the vehicle. A chamfered portion is provided at a protruding corner portion formed by the front portion and the side portion, and a front side surface of the chamfered portion faces the gap.

2. The vehicle body front structure according to claim 1, It is characterized in that When an imaginary line along the surface of the windshield glass is drawn toward the outer lens, at least a portion of the chamfered portion is provided to protrude toward the front of the vehicle more than the imaginary line.

3. The vehicle body front structure according to claim 1, It is characterized in that A depth dimension of the gap in the front-rear direction of the vehicle is greater than a width dimension of the gap in the vehicle width direction of the vehicle.

4. The vehicle body front structure according to claim 1, It is characterized in that A lip portion is provided for supporting the windshield glass on a vehicle body, and the lip portion is provided separately from the outer lens.

5. The vehicle body front structure according to claim 1, It is characterized in that The length dimension along the front portion from the end of the front window glass side of the front portion to the imaginary vertex is less than 3 mm, and the length dimension along the side portion from the front end of the side portion to the imaginary vertex is less than 5 mm, wherein the imaginary vertex is the point where the extension line of the front portion intersects the extension line of the side portion.

6. The vehicle body front structure according to claim 1, It is characterized in that The chamfered portion is connected to the front portion and the side portion at substantially the same angle.

7. The vehicle body front structure according to claim 1, It is characterized in that The side surface portion extends along the front-rear direction of the vehicle substantially parallel to the gap.

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