JP2021142878A - Vehicle body structure - Google Patents

Abstract

To provide a vehicle body structure that is able to reduce air resistance of a wheel, with a simpler structure and without substantially increasing weight.SOLUTION: A vehicle body structure includes: a wheel house 42A housing a wheel; a fender panel having a house outer peripheral portion 52 covering a periphery of the wheel house on a vehicle body surface; a door panel 32 or a fender panel adjacent to a front side of the house outer peripheral portion; an air discharge port 58 formed between the door panel or fender panel adjacent to the front side of the house outer peripheral portion and the house outer peripheral portion and configured to be opened to a side of a vehicle body to discharge air from an inner side 1K of the vehicle body to the side of the vehicle body. The house outer peripheral portion has: a flat portion 52M extending rearward from a rear-end edge 52F of the air discharge port so as to be substantially parallel to a longitudinal direction; and an inclined surface portion 52N extending from a rear-end edge 52MF of the flat portion toward the inside of the wheel house and bent at a prescribed inclination angle θ1 toward the inner side of the vehicle body.SELECTED DRAWING: Figure 4

Description

The present invention relates to a vehicle body structure that reduces air resistance during traveling.

In recent years, vehicles have undergone various improvements such as weight reduction, reduction of mechanical loss, and reduction of air resistance in order to further improve fuel efficiency for the purpose of reducing exhaust gas emissions.

For example, the vehicle aerodynamic device described in Patent Document 1 is provided with a movable liner portion that moves along the vehicle front-rear direction on the front side portion of the front wheel in the wheel house of the front wheel. The movable liner moves to the rear side of the vehicle when the vehicle speed exceeds the predetermined speed to reduce the gap between the front wheels and the movable liner, and when the vehicle speed falls below the predetermined speed, the movable liner part moves to the front of the vehicle. Move to the side to increase the gap between the front wheel and the movable liner. As a result, when the speed exceeds a predetermined speed, the inflow of air into the wheel house is suppressed, the air flow on the side of the front wheels is suppressed, and the air resistance is reduced.

JP-A-2007-186166

The movable liner portion of the vehicle aerodynamic device described in Patent Document 1 includes a guide portion that guides the movement of the vehicle in the front-rear direction, a drive device for moving the vehicle, a stopper that prevents the vehicle from coming into contact with the front wheel when approaching the front wheel, and the like. It is not very preferable because the structure is relatively complicated and the weight is increased.

The present invention has been devised in view of these points, and an object of the present invention is to provide a vehicle body structure having a simpler structure and capable of reducing the air resistance of wheels without increasing the weight. do.

In order to solve the above problems, the first invention of the present invention is a vehicle body structure that suppresses the inflow of air into the wheel house, the wheel house accommodating the wheels and the surroundings of the wheel house on the vehicle body surface. A fender panel having a house outer peripheral portion to cover, a door panel or the fender panel adjacent to the front side of the house outer peripheral portion, the house outer peripheral portion, and the door panel or the fender panel adjacent to the front side of the house outer peripheral portion. It is formed between them and has an air discharge port that opens to the side of the vehicle body and allows air from the inside of the vehicle body to be discharged to the side of the vehicle body. The outer peripheral portion of the house is a flat surface portion extending rearward from the rear end edge of the air discharge port so as to be substantially parallel to the front-rear direction, and the wheel from the rear end edge of the flat surface portion. It is a vehicle body structure having an inclined surface portion extending toward the inside of the house and bent at a predetermined inclination angle toward the inside of the vehicle body.

Next, the second invention of the present invention is a vehicle body structure that suppresses the inflow of air into the wheel house, that is, a wheel house that accommodates the wheels and an outer peripheral portion of the house that covers the periphery of the wheel house on the vehicle body surface. A fender panel having a It has an air discharge port that is formed between the members and is open to the side of the vehicle body to allow air from the inside of the vehicle body to be discharged to the side of the vehicle body. Then, the mounting member in the house extends from the rear end edge of the air discharge port toward the rear so as to be substantially parallel to the front-rear direction, and from the rear end edge of the flat surface portion. It is a vehicle body structure having an inclined surface portion extending toward the inside of the wheel house and bent at a predetermined inclination angle toward the inside of the vehicle body.

Next, the third invention of the present invention is the vehicle body structure according to the first invention or the second invention, which is extended from the rear end edge of the air exhaust port to the inside of the vehicle body and further forward of the vehicle body. It is a vehicle body structure having a wall portion extending to the air to make the flow of air discharged from the air discharge port blow out in the vehicle width direction.

Next, the fourth invention of the present invention is a vehicle body structure according to any one of the first to third inventions, wherein the flat surface portion is adjacent to the front end edge of the air discharge port. It is a vehicle body structure that does not protrude to the outside of the vehicle body from the surface of the vehicle body.

Next, the fifth invention of the present invention is a vehicle body structure according to any one of the first to fourth inventions, wherein the air exhaust port, the flat surface portion, and the inclined surface portion are It is a vehicle body structure that has an arc shape along the outer circumference of the wheel house.

Next, the sixth invention of the present invention is a vehicle body structure according to any one of the first to fifth inventions, and the radial width of the flat surface portion is the radial direction of the inclined surface portion. It is a car body structure that is set narrower than the width.

According to the first invention, the air (side air flow) flowing along the side surface of the vehicle body when the vehicle is running is the door panel (or fender panel), the air outlet, the flat surface portion of the outer peripheral portion of the house, and the inclined surface portion of the outer peripheral portion of the house. To the wheels via ,. At this time, air is sucked from the inside of the vehicle body from the air outlet by the side air flow (see reference numeral A1 in FIG. 5), and the sucked air flows along the side surface of the vehicle body together with the side air flow. (See reference numeral B1 in FIG. 5). Therefore, the suction air flow is in a state of flowing between the side surface of the vehicle body and the side air flow (see FIG. 5). The sucked air flow is sucked out from the air outlet by the side air flow, then flows along the flat surface portion, and flows away (peeled) from the inclined surface portion bent toward the inside of the vehicle body, and the side air flow flows. Suppresses the flow into the wheel house (see FIG. 5). As a result, the air resistance of the wheel can be reduced with a simpler structure without increasing the weight.

In the second invention, an in-house mounting member (for example, an arch molding) is provided at the edge of the outer peripheral portion of the house on the wheel side and at least the front edge of the outer peripheral portion of the house. The air discharge port is provided on the front side of the mounting member in the house, and the flat surface portion and the inclined surface portion are provided on the wheel house mounting member. Therefore, as in the first invention, the sucked air flow is sucked out from the air outlet by the side air flow, then flows along the flat surface portion, and is separated (peeled) from the inclined surface portion bent toward the inside of the vehicle body. ), And suppresses the side air flow from flowing into the wheel house (see FIG. 5). As a result, the air resistance of the wheel can be reduced with a simpler structure without increasing the weight.

According to the third invention, by making the suction air flow discharged from the air discharge port a flow that blows out in the vehicle width direction, the suction air flow can be more appropriately separated (peeled) from the inclined surface portion. .. In addition, the air outlet can be easily and appropriately formed with a simple structure.

According to the fourth invention, the suction air flow from the air discharge port can be appropriately flowed between the side surface of the vehicle body and the side air flow. Therefore, it is possible to more effectively suppress the side air flow from flowing into the wheel house.

According to the fifth invention, the air discharge port, the flat surface portion, and the inclined surface portion can be arranged in an appropriate range to reduce the air resistance of the wheel in a wider range.

According to the sixth invention, the suction air flow from the air discharge port can be more efficiently separated (peeled) from the inclined surface portion.

It is a figure which shows the left side surface of the vehicle which applied the body structure of this invention. It is an enlarged view of the circumference of the left rear wheel shown in FIG. It is a figure explaining. It is a perspective view of FIG. FIG. 2 is a sectional view taken along line IV-IV in FIG. According to the vehicle body structure of the present invention, the side air flow flowing on the side surface of the vehicle body of the traveling vehicle generates a suction air flow from the air discharge port, and the side air flow is suppressed from flowing into the wheel house by the suction air flow. It is a figure explaining the state. It is a figure explaining the vehicle body structure of the 2nd Embodiment in which a fender panel is arranged instead of a door panel on the front side of the outer peripheral part of a house in a two-door type vehicle or the like. A third embodiment in which an in-house mounting member is attached to the wheel side of the outer peripheral portion of the house, an air outlet is provided on the front side of the in-house mounting member, and a flat surface portion and an inclined surface portion are provided in the in-house mounting member. It is a figure explaining the vehicle body structure.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. When front, rear, up, down, left, and right are described in the figure, they indicate the front direction, the rear direction, the up direction, the down direction, the left direction, and the right direction when viewed from the vehicle 1.

● [Appearance of vehicle 1 (Fig. 1)]
First, the appearance of the vehicle 1 will be described with reference to FIG. As shown in FIG. 1, when viewed from the outside of the vehicle 1 (viewed from the left side of the vehicle 1), the vehicle 1 has bumpers 11, 12, fender panels 21, 51, door panels 31, 32, wheel houses 41A, 42A, It has wheels 41, 42, roof 61, pillars 62, 63, 64, 65 and the like. The vehicle 1 has a chassis frame (not shown), and bumpers 11, 12, fender panels 21, 51, and pillars 62 to 65 are connected to the chassis frame. The roof 61 is connected to the pillars 62 to 65. Further, the fender panels 21 and 51 have house outer peripheral portions 22 and 52 that cover the periphery of the wheel houses 41A and 42A.

The bumper 11, the fender panel 21, and the door panel 31 are attached to a chassis frame (not shown) and are attached around the wheel house 41A. Wheels 41 are housed in the wheel house 41A. On the outer peripheral portion of the wheel house 41A, a house outer peripheral portion 22 which is a part of the fender panel 21 and is formed in an arc shape so as to surround the circumference of the wheel house 41A (the circumference including a part on the front side of the vehicle body) is formed. It is provided.

Similarly, the bumper 12, the fender panel 51, and the door panel 32 are attached to a chassis frame (not shown) and are attached around the wheel house 42A. Wheels 42 are housed in the wheel house 42A. An arcuate outer peripheral portion 52 of the wheel house 42A is provided on the outer peripheral portion of the wheel house 42A so as to surround the circumference of the wheel house 42A (a circumference including a part on the front side of the vehicle body) which is a part of the fender panel 51. There is.

While the vehicle 1 is traveling, various air flows flow from the front to the rear along the surface of the vehicle 1 to generate air resistance. For example, on the left side surface of the running vehicle 1, as shown in FIG. 1, various air flows such as a side air flow A1 passing through the wheels 41 and the wheels 42 and a side air flow A2 not passing through the wheels 41 and the wheels 42. There is. In particular, the side air flow A1 passing through the wheels 41 and 42 flows into the wheel houses 41A and 42A on the front side of the wheels 41 and 42 due to the negative pressure generated in front of the rotating wheels 41 and 42. It interferes with 41 and 42 to generate a relatively large air resistance. The vehicle body structure of the present invention further suppresses (reduces) the air resistance generated in the wheels 41 and 42 by the side air flow A1 in FIG. Hereinafter, the vehicle body structure around the wheel 42 shown in FIG. 1 will be described as an example.

● [Body structure of the first embodiment (FIGS. 2 to 5)]
Next, with reference to FIGS. 2 to 5, the first embodiment in the appearance around the wheels 42, the vehicle body structure, and the like will be described. FIG. 2 is an enlarged view of the periphery of the wheel 42 in FIG. 1, FIG. 3 is a perspective view of the periphery of the wheel 42, and FIG. 4 is a sectional view taken along line IV-IV in FIG. As shown in FIG. 2, the vehicle body structure of the first embodiment includes a wheel house 42A, a fender panel 51 having a house outer peripheral portion 52, a door panel 32 adjacent to the front side of the house outer peripheral portion 52, a house outer peripheral portion 52 and a door panel. It has an air discharge port 58 and the like formed between the 32 and 32.

As shown in FIG. 4, the door panel 32 is composed of a door outer panel 32P and a door inner panel 32Q. The outer peripheral portion 52 of the house is composed of an outer panel 52P on the outer peripheral portion of the house and an inner panel 52Q on the outer peripheral portion of the house. The air discharge port 58 communicates 1K inside the vehicle body with the space outside the vehicle body.

As shown in FIGS. 2 and 3, when viewed from the outside of the vehicle 1, the fender panel 51 has an arc-shaped house outer peripheral portion 52 that covers the periphery of the wheel house 42A on the vehicle body surface. The wheel house 42A is a hollow portion for accommodating the wheels 42. A door panel 32 is provided adjacent to the front side of the outer peripheral portion 52 of the house when viewed from the outside of the vehicle 1. The “front side of the outer peripheral portion 52 of the house” refers to at least the front side of the rotation axis 42J of the wheel 42 shown in FIG.

Further, as shown in FIGS. 2 to 4, an air discharge port 58 is formed between the outer peripheral portion 52 of the house and the door panel 32 adjacent to the front side of the outer peripheral portion 52 of the house. The air discharge port 58 opens to the side of the vehicle body and allows air from the inside of the vehicle body 1K (see FIG. 4) to be discharged to the side of the vehicle body. That is, the air discharge port 58 communicates the inside 1K of the vehicle body with the space on the side of the vehicle body (the space outside the vehicle body). The air discharge port 58 is provided at least in a part of the front side of the outer peripheral portion 52 of the house.

Further, as shown in FIGS. 2 to 4, the outer peripheral portion 52 of the house has a flat surface portion 52M and an inclined surface portion 52N. The flat surface portion 52M is a flat surface extending rearward from the rear end edge 52F of the air discharge port 58 so as to be substantially parallel to the front-rear direction. The inclined surface portion 52N is a conical surface that extends from the rear end edge 52MF of the flat surface portion 52M toward the inside of the wheel house 42A and is bent toward the inside of the vehicle body at a predetermined inclination angle θ1 (see FIG. 4). Is. Further, as shown in FIG. 4, on the side of the wheel 42 of the inclined surface portion 52N, a terminal portion 52T bent from the inclined surface portion 52N toward the inside of the vehicle body is formed.

Further, as shown in FIG. 4, a wall portion 52H having a concave shape toward the front side is provided inside the vehicle body from the air discharge port 58. The wall portion 52H extends from the rear end edge 52F of the air discharge port 58 to the inside 1K of the vehicle body, and further extends to the front of the vehicle body. The wall portion 52H is provided along the trailing edge 52F of the air discharge port 58. As shown in FIG. 5, when the air inside the vehicle body 1K is sucked out from the air discharge port 58 by the side air flow A1, it becomes the suction air flow B1 blown out in the vehicle width direction by the wall portion 52H.

Further, as shown in FIG. 4, when the air discharge port 58 is viewed from the AA direction in front of the air discharge port 58, the wall portion 52H can be seen behind the air discharge port 58, but the vehicle body behind the wall portion 52H. The inner 1K is hidden from view. This prevents the air discharge port 58, which is a relatively large gap, from being unsightly.

Further, as shown in FIG. 4, the flat surface portion 52M is a vehicle body surface adjacent to the front end edge 32F of the air discharge port 58 (in the case of FIG. 4, the vehicle body outer surface of the door panel 32 adjacent to the front end edge 32F). It is a surface that does not protrude to the outside of the vehicle body. In the example shown in FIG. 4, the flat surface portion 52M is arranged so as to be substantially flush with the vehicle body surface (the outer surface of the vehicle body of the door panel 32 in the example of FIG. 4) adjacent to the front end edge 32F (same virtual plane). Although it is arranged above), it may be arranged slightly inside the vehicle body from the surface of the vehicle body.

Further, as shown in FIG. 2, the air discharge port 58, the flat surface portion 52M, and the inclined surface portion 52N have an arc shape along the outer circumference of the wheel house 42A. Further, as shown in FIGS. 2 to 4, the radial width L2 of the flat surface portion 52M (the radial width of the wheel 42 in the flat surface portion 52M) is the radial width L3 of the inclined surface portion 52N (the wheel 42 in the inclined surface portion 52N). It is set narrower than the radial width (diameter width L2 <diameter width L3). Further, as shown in FIGS. 2 to 4, the radial width L1 of the air discharge port 58 (the radial width of the wheel 42 at the air discharge port 58) is set narrower than the radial width L2 of the flat surface portion 52M (diameter). The directional width L1 <the radial width L2 is set).

● [Flow of side air flow A1 when the vehicle 1 is running (FIGS. 4 and 5)]
FIG. 5 shows a solid line showing the flow of the side air flow A1 (see FIG. 1) with respect to the vehicle body structure of the first embodiment described above when the vehicle 1 is traveling. Further, in FIG. 5, the flow of the suction air flow B1 which is the flow of the air sucked from the inside 1K of the vehicle body via the air discharge port 58 by the side air flow A1 is shown by a two-dot chain line.

As described above, "the radial width L1 of the air discharge port 58 (see FIG. 4)" <"the radial width L2 of the flat surface portion 52M (see FIG. 4)" <"the radial width L3 of the inclined surface portion 52N (see FIG. 4)" (See) ”, the respective dimensions of the radial widths L1, L2, and L3 are set. Further, the radial widths L1, L2, and L3 are set so that the suction air flow B1 sucked out from the air discharge port 58 and flowing along the flat surface portion 52M is appropriately separated (peeled) from the inclined surface portion 52N. It has been set to an appropriate value by experiments and simulations using an actual vehicle. Further, the upper limit of the radial width L1 of the air discharge port 58 is set to the radial width L2 of the flat surface portion 52M so as not to deteriorate the appearance. Further, the lower limit of the radial width L1 of the air discharge port 58 is preferably about 2 [mm] or more in order to secure the above-mentioned flow rate and flow velocity in the suction air flow B1.

Further, as shown in FIG. 5, the radial width L2 of the flat surface portion 52M shown in FIG. 4 is appropriately separated (peeled) from the inclined surface portion 52N after the suction air flow B1 flows along the flat surface portion 52M. As described above, appropriate values are set by experiments and simulations using actual vehicles. Similarly, the radial width L3 and the predetermined inclination angle θ1 of the inclined surface portion 52N shown in FIG. 4 are appropriate from the inclined surface portion 52N after the suction air flow B1 flows along the flat surface portion 52M as shown in FIG. Appropriate values are set by experiments and simulations using actual vehicles so that they are separated (peeled) from each other.

By the above experiments and simulations using an actual vehicle, for example, the radial width L1 is set to about 4.5 [mm], the radial width L2 is set to about 6 [mm], and the radial width L3. Is set to about 22 [mm], and the predetermined inclination angle θ1 is set to about 17 [°].

With the appropriate dimensions and the appropriate angle described above, when the vehicle 1 is traveling, as shown in FIG. 5, the side air flow A1 flowing along the door panel 32 passes through the air discharge port 58. , The air in 1K inside the vehicle body is sucked out from the air discharge port 58. The air sucked out from the air discharge port 58 becomes a suction air flow B1 that flows along the flat surface portion 52M by the side air flow A1. That is, the suction air flow B1 is located between the flat surface portion 52M and the side air flow A1.

Then, when the suction air flow B1 flows along the flat surface portion 52M and then reaches the inclined surface portion 52N with the appropriate dimensions (diameter width L1, L2.L3) and the appropriate angle (predetermined inclination angle θ1) described above. , The flow is separated (peeled) from the inclined surface portion 52N. The suction air flow B1 separated (peeled) from the inclined surface portion 52N separates (separates) the side air flow A1 from the inclined surface portion 52N. As a result, the amount of air flowing into the wheel house 42A on the front side of the wheel 42 (the amount of the side air flow A1) like the solid side air flow A1 and the two-dot chain line suction air flow B1 shown in FIG. , And the amount of sucked air flow B1), so that the air resistance is reduced.

In the conventional vehicle body structure (for example, a vehicle body structure in which the air outlet is very narrow (or not)), which is not shown, the side air flow is separated from the inclined surface portion as shown by the dotted line in FIG. It flows along the inclined surface without (peeling). Then, the side air flow flows along the inclined surface portion and then flows into the wheel house 42A on the front side of the wheel 42 more, and generates a larger air resistance. The inventor has confirmed that the air resistance can be reduced by about 1 [%] in the vehicle body structure described in the first embodiment as compared with the conventional case.

● [The vehicle body structure of the second embodiment in which the fender panel 51 is adjacent to the front side of the outer peripheral portion 52 of the house instead of the door panel 32 (FIG. 6)]
The vehicle body structure of the first embodiment described above (the vehicle body structure described with reference to FIGS. 1 to 5) is an example of a 4-door type vehicle, and the door panel 32 (rear door) is on the front side of the outer peripheral portion 52 of the house. ) Was an adjacent example. In the two-door type vehicle, as shown in FIG. 6, there is no door panel 32 (rear door), the door panel 31 (front door) is not adjacent to the front side of the outer peripheral portion 52 of the house, and the fender panel 51 is provided. Adjacent.

In the case of the two-door vehicle shown in FIG. 6, the air discharge port 58 is not provided at the position of the rear end edge 31F of the door panel 31. In the case of the two-door vehicle shown in FIG. 6, the air discharge port 58 is formed between the outer peripheral portion 52 of the house and the fender panel 51 adjacent to the front side of the outer peripheral portion 52 of the house. Since the other points are the same as those of the first embodiment described above, the same effect as that of the first embodiment (reduction of air resistance of the wheel) can be obtained.

[[Body structure of the third embodiment in which the mounting member 72 in the house is used instead of the outer peripheral portion 52 of the house (FIG. 7)]
In the vehicle body structure of the first embodiment described above (the vehicle body structure described with reference to FIGS. 1 to 5), a flat surface portion 52M and an inclined surface portion 52N are provided on the outer peripheral portion 52 of the house which is a part of the fender panel 51. An air discharge port 58 is provided on the front side of the outer peripheral portion 52 of the house. In the vehicle body structure of the third embodiment shown in FIG. 7, instead of the above-mentioned house outer peripheral portion 52, the edge portion 52BF on the wheel 42 side in the house outer peripheral portion 52B and at least the front side edge in the house outer peripheral portion 52B. An arc-shaped in-house mounting member 72 (for example, an arch molding) is attached to the portion 52BF. The in-house mounting member 72 is provided with a flat surface portion 72M and an inclined surface portion 72N, and an air discharge port 78 is provided between the in-house mounting member 72 and the outer peripheral portion 52B of the house.

The air discharge port 78 is formed between the outer peripheral portion 52B of the house and the mounting member 72 inside the house, and is opened to the side of the vehicle body so as to allow air from the inside of the vehicle body to be discharged to the side of the vehicle body. , The inside of the car body and the outside of the car body are communicated.

The flat surface portion 72M is a flat surface extending rearward from the rear end edge 72F of the air discharge port 78 so as to be substantially parallel to the front-rear direction. The inclined surface portion 72N is a conical surface that extends from the rear end edge 72MF of the flat surface portion 72M toward the inside of the wheel house 42A and is bent toward the inside of the vehicle body at a predetermined inclination angle. Further, on the side of the wheel 42 of the inclined surface portion 72N, an end portion bent from the inclined surface portion 72N toward the inside of the vehicle body is formed (not shown).

Since the structures of the flat surface portion 72M, the inclined surface portion 72N, and the air discharge port 78 are the same as those of the flat surface portion 52M, the inclined surface portion 52N, and the air discharge port 58 of the first embodiment described above, the description thereof will be omitted. Further, the radial width L1 of the air discharge port 78, the radial width L2 of the flat surface portion 72M, and the L3 of the inclined surface portion 72N are also the radial width L1 of the air discharge port 58 and the flat surface portion 52M of the first embodiment described above. The same is true for the radial width L2 of the above and the radial width L3 of the inclined surface portion 52N. Therefore, the same effect as that of the first embodiment (reduction of air resistance of the wheel) can be obtained.

The in-house mounting member 72 is convenient because it can be easily mounted in the existing front wheel house or rear wheel house. It is also particularly convenient for the front wheel house 41A (see FIG. 1), which has no door on the front side and is mostly bumper 11 (see FIG. 1) on the front side.

As described above, in the vehicle body structure described in the first and second embodiments, as shown in FIGS. 2 and 6, a flat surface portion 52M and an inclined surface portion 52N are formed on the outer peripheral portion 52 of the house of the fender panel 51, and the house. Since it is only necessary to form the air discharge port 58 on the front side of the outer peripheral portion 52, the structure is very simple, there is almost no increase in weight, and the air resistance of the wheels can be reduced.

Further, as shown in FIG. 7, the vehicle body structure of the third embodiment in which the in-house mounting member 72 is added in the wheel house 42A can be easily applied to a front wheel wheel house or an existing wheel house. .. Further, the mounting member 72 in the house can be made into a relatively small and lightweight member by using a thin steel plate, resin, or the like, and there is almost no increase in weight, and the air resistance of the wheel can be reduced.

The vehicle body structure of the present invention is not limited to the appearance, configuration, structure and the like described in the present embodiment, and various changes, additions and deletions can be made without changing the gist of the present invention.

In the description of the present embodiment, as shown in FIG. 4, the wall portion 52H extending from the rear end edge 52F of the air discharge port 58 to the inside of the vehicle body and further extending to the front of the vehicle body is provided. Although the provided example has been described, a simple inclined surface may be provided instead of the curved wall portion 52H.

In the description of the present embodiment, as shown in FIG. 4, an example in which the flat surface portion 52M does not protrude to the outside of the vehicle body from the vehicle body surface adjacent to the front end edge 32F of the air discharge port 58 has been described. The portion 52M may project outward (if a little) from the vehicle body surface adjacent to the front end edge 32F.

In the description of the present embodiment, as shown in FIGS. 2, 6, and 7, the air discharge port 58 (78), the flat surface portion 52M (72M), and the inclined surface portion 52N (72N) are the outer circumferences of the wheel house. An example of forming an arc shape along the wheel house from the front side to the upper side and further to the rear side of the wheel house has been described, but it may be at least a part of the front side of the wheel house, and the shape is not arcuate. May be good.

Further, in the description of the present embodiment, in the 4-door type vehicle, the door panel 32 of the door having a hinge in front of the rear door and opening and closing the rear of the rear door is shown as an example, but it is a sliding type. The vehicle body structure of the present invention can be applied to various types of vehicles such as rear door type vehicles.

Further, the above (≧), the following (≦), the larger (>), the less than (less than) (<), and the like may or may not include the equal sign. Further, the numerical values used in the description of the present embodiment are examples, and are not limited to these numerical values.

1 Vehicle 1K Inside the car body 11, 12 Bumper 21 Fender panel 22 House outer circumference 31, 32 Door panel 32F Front edge (front edge of air outlet)
32P Door outer panel 32Q Door inner panel 41, 42 Wheels 41A, 42A Wheel house 42J Rotating axis 51 Fender panel 52 House outer circumference 52B House outer circumference 52BF Edge 52F Rear end edge (rear end edge of air outlet)
52H Wall part 52M Flat part 52MF Rear end edge (Rear end edge of flat part)
52N Inclined surface 52P House outer peripheral outer panel 52Q House outer peripheral inner panel 52T End 58 Air exhaust port 61 Roof 62, 63, 64, 65 Pillar 72 House interior mounting member 72F Rear end edge (rear end edge of air exhaust port)
72M flat surface 72MF rear edge (rear edge of flat surface)
72N Inclined surface 78 Air outlet A1, A2 Side air flow B1 Suction air flow L1, L2, L3 Radial width θ1 Predetermined inclination angle

Claims (6)

It is a car body structure that suppresses the inflow of air into the wheel house.
A wheel house that houses the wheels and
A fender panel having a house outer periphery that covers the periphery of the wheel house on the vehicle body surface,
With the door panel or the fender panel adjacent to the front side of the outer peripheral portion of the house,
It is formed between the outer peripheral portion of the house and the door panel or the fender panel adjacent to the front side of the outer peripheral portion of the house, and is opened to the side of the vehicle body to discharge air from the inside of the vehicle body to the side of the vehicle body. With an air outlet that allows
Have,
The outer periphery of the house is
A flat surface extending rearward from the rear edge of the air outlet so as to be substantially parallel to the front-rear direction.
An inclined surface portion extending from the rear end edge of the flat surface portion toward the inside of the wheel house and bent at a predetermined inclination angle toward the inside of the vehicle body.
Have,
Body structure. It is a car body structure that suppresses the inflow of air into the wheel house.
A wheel house that houses the wheels and
A fender panel having a house outer periphery that covers the periphery of the wheel house on the vehicle body surface,
An in-house mounting member to be attached to the wheel-side edge on the outer periphery of the house and at least the front edge on the outer periphery of the house.
An air discharge port formed between the outer peripheral portion of the house and the mounting member inside the house and which opens to the side of the vehicle body to allow air from the inside of the vehicle body to be discharged to the side of the vehicle body.
Have,
The mounting member in the house is
A flat surface extending rearward from the rear edge of the air outlet so as to be substantially parallel to the front-rear direction.
An inclined surface portion extending from the rear end edge of the flat surface portion toward the inside of the wheel house and bent at a predetermined inclination angle toward the inside of the vehicle body.
Have,
Body structure. The vehicle body structure according to claim 1 or 2.
A wall portion that extends from the rear end edge of the air discharge port to the inside of the vehicle body and further extends to the front of the vehicle body to blow out the air flow discharged from the air discharge port in the vehicle width direction. Have,
Body structure. The vehicle body structure according to any one of claims 1 to 3.
The flat surface portion does not protrude to the outside of the vehicle body with respect to the vehicle body surface adjacent to the front end edge of the air discharge port.
Body structure. The vehicle body structure according to any one of claims 1 to 4.
The air outlet, the flat surface portion, and the inclined surface portion have an arc shape along the outer circumference of the wheel house.
Body structure. The vehicle body structure according to any one of claims 1 to 5.
The radial width of the flat surface portion is set to be narrower than the radial width of the inclined surface portion.
Body structure.

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