JP2020192910A - Wheel house structure of vehicle - Google Patents

Abstract

To provide a structure that can reduce the weight of a vehicle.SOLUTION: A wheel house structure of a vehicle includes: an inner member 30 fixed to a frame 15 of a vehicle body to be formed in a wall shape and covering a wheel 11b from the inner side in a width direction of the vehicle; and an outer member 40 connecting the inner member 30 and an outer plate 50 configuring a design surface of the vehicle and covering an outer circumferential surface of the wheel 11b. The outer member 40 extends across a space S formed between the inner member 30 and the outer plate 50. A lining part 41 of the outer member 40, which is located inward in the vehicle width direction with respect to the space S, covers a wall surface 30w of the inner member 30 and is connected to the inner member 30. An outer edge portion 45 of the outer member 40, which is located outward in the vehicle width direction with respect to the space S, is connected to the outer plate 50.SELECTED DRAWING: Figure 4

Description

INDUSTRIAL APPLICABILITY The present invention is fixed to a frame of a vehicle body and formed in a wall shape, and connects an inner member that covers the wheels from the inside in the vehicle width direction and the inner member and an outer plate that constitutes the design surface of the vehicle to form a wheel. The present invention relates to a wheel house structure of a vehicle including an outer member covering the outer peripheral surface of the vehicle.

Patent Document 1 describes the above-mentioned technique for a wheel house structure of a vehicle. The wheel house structure described in Patent Document 1 is a structure of a rear wheel house 100 that covers the rear wheels (not shown) of a vehicle. As shown in FIG. 7, the rear wheel house 100 includes a wheel house inner 104 and a wheel house outer 105. The wheel house inner 104 is fixed to the rear floor side member 101 of the vehicle and formed in a wall shape, and covers the rear wheels from the inside in the vehicle width direction. The wheel house outer 105 covers the outer peripheral surface of the rear wheels in a state where the wheel house inner 104 and the outer plate 107 constituting the design surface of the vehicle are connected.

The foil house inner 104 and the wheel house outer 105 are made of iron, and the flange portions 104f and 105f are connected by spot welding or the like. Further, the outer plate 107 is also made of iron, and the outer plate 107 and the foil house outer 105 are connected by spot welding or the like of the flange portions 105e and 107f of each other. Here, the inner peripheral surfaces of the wheel house inner 104 and the wheel house outer 105 are generally covered with a lining material (not shown) such as a non-woven fabric in order to reduce noise caused by the wheels bouncing stones. is there. Further, a coating material is also applied instead of the lining material.

Japanese Unexamined Patent Publication No. 2006-137272

In the wheel house structure of the vehicle described above, the wheel house inner 104 and the wheel house outer 105 made of iron are used, and a lining material such as a non-woven fabric is required, so that there is a limit to weight reduction. Therefore, it is conceivable that only the foil house inner 104, which requires strength, is made of iron, and the foil house outer 105 is made of light resin. However, even if the foil house outer 105 or the like is made of resin, the lining material such as non-woven fabric cannot be omitted, so that there is a limit to weight reduction.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to make the vehicle lighter than before.

The above-mentioned problems are solved by each invention. The first invention is fixed to a frame of a vehicle body and formed in a wall shape, and connects an inner member that covers wheels from the inside in the vehicle width direction and an outer plate that constitutes the design surface of the vehicle. , A wheel house structure of a vehicle including an outer member covering the outer peripheral surface of a wheel, the outer member straddling a space formed between the inner member and the outer plate, and the width of the vehicle with respect to the space. The lining portion of the outer member located inside in the direction covers the wall surface of the inner member and is connected to the inner member, and the outer edge portion of the outer member located outside in the vehicle width direction with respect to the space is said. It is connected to the outer panel.

According to the present invention, the outer member straddles the space formed between the inner member and the outer plate, and the lining portion of the outer member located inside in the vehicle width direction with respect to the space covers the wall surface of the inner member. There is. For this reason, the outer member serves as both an outer panel and a lining material in a conventional foil house structure. As a result, by using the outer member, it is possible to omit the member corresponding to the outer panel in the conventional foil house structure. As a result, the weight of the vehicle can be reduced.

According to the second invention, the lining portion of the outer member covers the side wall surface from the ceiling surface constituting the wall surface of the inner member. Therefore, coating of the wall surface of the inner member can be omitted.

According to the third invention, a wheel support mechanism is connected to the inner member, and the inner member is made of a different material having a strength larger than that of the outer member. Therefore, for example, the inner member that requires a large strength can be made of iron, and the outer member that does not require a large strength can be made of resin or the like.

According to the fourth invention, a flange portion is formed on the outer edge of the inner member in the vehicle width direction, and a hook portion hung on the flange portion of the inner member is provided on the outer peripheral surface of the outer member. It is formed. Therefore, the work of connecting the outer member to the inner member becomes easy.

According to the present invention, the weight of the vehicle can be reduced as compared with the conventional case.

It is an overall perspective view of the vehicle provided with the wheel house structure which concerns on Embodiment 1 of this invention. It is a schematic plan view showing the positional relationship between the frame of the vehicle and the wheel house in the front, rear, left and right. FIG. 2 is a vertical cross-sectional view taken along the line III-III of FIG. It is a vertical sectional view (IV-IV arrow sectional view of FIG. 2) showing the foil house structure. It is an exploded perspective view which looked at the foil house structure from the rear. It is a VI arrow view enlarged view of FIG. It is a vertical cross-sectional view which shows the conventional foil house structure.

[Embodiment 1]
Hereinafter, the wheel house structure of the vehicle according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The wheel house structure of the vehicle according to the present embodiment is a wheel house structure at the rear of the small vehicle. Here, the front-rear, left-right, and up-down shown in the figure correspond to the front-back, left-right, and up-down of the vehicle 10.

<Overview of vehicle 10>
As shown in FIG. 1, the vehicle 10 is a two-seater compact car, and the left and right door openings 12h are formed at the center position of the vehicle body 12 in the front-rear direction. The left and right door openings 12h can be opened and closed by a swing door 14 that horizontally rotates about a hinge shaft (not shown). As shown in FIG. 2, a pair of left and right side members 15 extending in the front-rear direction of the vehicle are provided on the floor of the vehicle 10. Then, between the left and right side members 15, cross members 17 extending in the vehicle width direction are passed at a plurality of locations in the vehicle front-rear direction.

As shown in FIGS. 1 and 2, rocker rails 19 forming the lower sides of the left and right door openings 12h are provided parallel to the side members 15 on the outer sides of the left and right side members 15 in the vehicle width direction. Then, as shown in FIG. 3, the floor panel 20 of the vehicle interior R is fixed on the side member 15, the cross member 17, and the rocker rail 19. Further, as shown in FIGS. 1 and 2, on the front side of the left and right rocker rails 19, that is, on the front side of the left and right door openings 12h and on the outside of the left and right side members 15 in the vehicle width direction, the left and right sides for storing the front wheels 11f are stored. The front wheel house 30f is provided. Further, on the rear side of the left and right door openings 12h, on the outside of the left and right side members 15 in the vehicle width direction, left and right rear wheel houses 30r for accommodating the rear wheels 11b are provided.

<About the structure of the rear wheel house 30r>
As shown in FIGS. 4 and 5, the rear wheel house 30r (hereinafter referred to as a wheel house 30r) is composed of a wheel house inner panel 30, a liner member 40, and a foil arch portion 52 of the outer plate 50. The wheel house inner panel 30 is an iron panel that covers the side surface and the outer peripheral surface of the rear wheel 11b from the inside in the vehicle width direction. As shown in FIG. 4, the foil house inner panel 30 is formed from the vertical wall portion 31, the curved portion 32, and the ceiling portion 33 in a substantially arcuate vertical cross-sectional shape. Then, as shown in FIGS. 4 and 5, a lower end flange portion 31f welded to the upper end vertical flange portion 15f of the side member 15 is formed at the lower end position of the vertical wall portion 31 of the foil house inner panel 30. .. That is, in a state where the lower end flange portion 31f of the wheel house inner panel 30 is welded to the upper end vertical flange portion 15f of the side member 15, the wheel house inner panel 30 has a lower wall portion of the vehicle interior R as shown in FIG. Consists of.

As shown in FIG. 5, the shape of the front side portion of the wheel house inner panel 30 is formed in an arc shape along the wheel arch of the wheel house 30r. As a result, the height dimension of the ceiling portion 33 of the wheel house inner panel 30 becomes smaller as the distance from the center of the rear wheel 11b (not shown) forward. Then, at the front end portion of the foil house inner panel 30, the vertical wall portion 31, the curved portion 32, and the ceiling portion 33 of the foil house inner panel 30 are held at the same height position as the floor panel 20 and are held on the floor panel 20. Be connected. A vertical flange portion 35 is formed at a vehicle width direction outer edge (left edge) of the ceiling portion 33 of the wheel house inner panel 30 with a constant height dimension. Further, the ceiling portion 33 of the wheel house inner panel 30 is provided with a receiving portion 33u that supports the upper end of the shock absorber (not shown) of the rear wheels 11b at substantially the same position as the center of the rear wheels 11b in the vehicle front-rear direction. There is.

<About liner member 40>
As shown in FIG. 4, the liner member 40 is a member that covers the outer peripheral surface of the rear wheel 11b and the like in a state where the wheel house inner panel 30 and the outer plate 50 of the vehicle body 12 are connected. The liner member 40 is a resin injection-molded product, and is composed of a lining portion 41, a space straddling portion 43, and an outer edge portion 45. As shown in FIG. 4 and the like, the lining portion 41 of the liner member 40 is a portion that covers almost the entire foil house wall surface 30w of the foil house inner panel 30, that is, a portion that covers the side wall surface from the ceiling surface, and the foil house inner panel 30. It is molded into almost the same shape.

As shown in FIG. 6, a lower end flange portion 41f fixed to the vertical wall portion 31 of the foil house inner panel 30 by bolts or the like is formed at the lower end portion of the lining portion 41 of the liner member 40. A seal portion 41s is formed at the lower end of the lower end flange portion 41f of the lining portion 41 in a state of being bent by approximately 90 ° in the direction of the foil house wall surface 30w of the foil house inner panel 30. As shown in FIGS. 4 and 6, the seal portion 41s is pressed against the foil house wall surface 30w when the lower end flange portion 41f of the lining portion 41 is fixed to the vertical wall portion 31 of the foil house inner panel 30 with bolts or the like. As a result, it is deformed by the elasticity of the resin. As a result, the space between the lower end flange portion 41f and the foil house wall surface 30w is sealed by the sealing portion 41s. As a result, it becomes difficult for water or the like to enter between the lining portion 41 of the liner member 40 and the foil house wall surface 30w of the foil house inner panel 30 from below.

As shown in FIG. 4 and the like, the space straddling portion 43 of the liner member 40 straddles the space S between the foil house inner panel 30 and the foil arch portion 52 of the outer plate 50, and the foil house inner panel 30 and the outer plate 50 are straddled. This is the connecting part. As shown in FIG. 5, a vertical wall portion 43y is formed on the upper surface of the space straddling portion 43 of the liner member 40 so as to extend in the front-rear direction of the vehicle, and a foil house inner panel is formed at the upper end position of the vertical wall portion 43y. A pair of front and rear hook portions 43k that are hung from above are formed on the vertical flange portions 35 of 30.

The outer edge portion 45 of the liner member 40 is a portion connected to the foil arch portion 52 of the outer plate 50. As shown in FIG. 4, the outer edge portion 45 of the liner member 40 is bolted to the inner flange portion 52y of the foil arch portion 52 in a state of being overlapped with the inner flange portion 52y from above. As shown in FIG. 5 and the like, a vertical flange portion 45f is formed on the edge of the outer edge portion 45 of the liner member 40 at right angles to the outer edge portion 45.

<About the outer plate 50>
As shown in FIG. 1, the outer plate 50 is a panel constituting the design surface 12e of the vehicle body 12, and is an injection-molded product of resin. The outer plate 50 is provided with a foil arch portion 52 at the lower portion. As shown in FIG. 4, an inner flange portion 52y that supports the outer edge portion 45 of the liner member 40 from below is formed inside the outer plate 50 along the foil arch portion 52.

<Assembly of foil house 30r>
When assembling the foil house 30r, first, as shown in FIG. 4, a pair of front and rear hook portions 43k of the liner member 40 are hung on the vertical flange portion 35 of the foil house inner panel 30, and the foil house inner panel 30 is assembled. Temporarily support the liner member 40. Next, the lower end flange portion 41f of the lining portion 41 of the liner member 40 is bolted to the vertical wall portion 31 of the foil house inner panel 30. As a result, the seal portion 41s of the lower end flange portion 41f of the lining portion 41 is pressed against the foil house wall surface 30w of the foil house inner panel 30, and the lower end flange portion 41f and the foil house wall surface 30w are sealed. As a result, it becomes difficult for water or the like to enter between the lining portion 41 of the liner member 40 and the foil house wall surface 30w of the foil house inner panel 30 from below.

Next, when the outer plate 50 is attached to the vehicle body 12, the inner flange portion 52y of the outer plate 50 is overlapped with the outer edge portion 45 of the liner member 40 from below, and the outer edge portion 45 and the inner flange portion 52y are bolted. It will be stopped. In this way, the lining portion 41 of the liner member 40 acts as a lining material for covering the foil house wall surface 30w of the foil house inner panel 30, and the space straddling portion 43 and the outer edge portion 45 of the liner member 40 act as foil outer panels. ..

<Correspondence between the terms in the present embodiment and the terms in the present invention>
The side members 15 constituting the vehicle body 12 correspond to the frame of the vehicle body of the present invention. Further, the foil house inner panel 30 corresponds to the inner member of the present invention, and the foil house wall surface 30w corresponds to the wall surface of the inner member. Further, the liner member 40 corresponds to the outer member of the present invention. Further, the shock absorber of the rear wheel 11b corresponds to the wheel support mechanism of the present invention.

<Advantages of foil house structure according to this embodiment>
According to the foil house structure according to the present embodiment, the liner member 40 (outer member) straddles the space S formed between the foil house inner panel 30 (inner member) and the outer plate 50, and further, the lining portion of the liner member 40. 41 covers the foil house wall surface 30w of the foil house inner panel 30. Therefore, the liner member 40 plays the role of both the outer panel and the lining material (liner) in the conventional foil house structure. As a result, by using the liner member 40, it is possible to omit the member corresponding to the outer panel in the conventional foil house structure. As a result, the weight of the vehicle 10 can be reduced.

Further, a shock absorber (support mechanism) of the rear wheels 11b is connected to the wheel house inner panel 30, and the wheel house inner panel 30 is made of a material having a strength higher than that of the liner member 40. That is, the weight of the foil house 30r can be reduced by making only the foil house inner panel 30 that requires a large strength from iron and the liner member 40 that does not require a large strength from a resin or the like. Further, since the liner member 40 is formed with a hook portion 43k to be hung on the vertical flange portion 35 of the foil house inner panel 30, the liner member 40 can be easily connected to the foil house inner panel 30.

Further, an inner flange portion 52y provided on the foil arch portion 52 of the outer plate 50 is connected to the outer edge portion 45 of the liner member 40 in a state of being overlapped from below. A vertical flange portion 45f is formed on the edge of the outer edge portion 45 of the liner member 40. Therefore, it becomes difficult for water or the like to enter the inner space between the liner member 40 and the outer plate 50 from the outside. Further, the liner member 40 is made of resin, and the lining portion 41 is pressed against the foil house wall surface 30w of the foil house inner panel 30 by the elasticity of the resin in the seal portion 41s of the lining portion 41 of the liner member 40. It is connected to the panel 30. Therefore, it becomes difficult for water or the like to enter the gap between the foil house wall surface 30w of the foil house inner panel 30 and the liner member 40.

<Change example>
Here, the present invention is not limited to the above-described embodiment, and changes can be made without departing from the gist of the present invention. For example, in the present embodiment, an example is shown in which the lining portion 41 of the liner member 40 covers almost the entire foil house wall surface 30w of the foil house inner panel 30. However, it is also possible to cover only the foil house wall surface 30w in the ceiling portion 33 of the foil house inner panel 30 with the lining portion 41 of the liner member 40, and coat the other foil house wall surface 30w with a coating material.

10 ... Vehicle 11b ... Rear wheels (wheels)
12e ... Design surface 12 ... Vehicle body 15 ... Side member (frame)
30r ... Rear wheel house (foil house)
30 ... Wheel house inner panel (inner member)
30w ... Wheel house wall surface (wall surface of inner member)
35 ... Vertical flange part (flange part of inner member)
40 ... Liner member (outer member)
41s ... Seal part (edge at the lining part)
41 ... Lining part 43 ... Space straddling part 43k ... Hook part 45 ... Outer edge part 45f ... Vertical flange part (flange part)
50 ... Outer plate 52 ... Wheel arch portion 52y ... Inner flange portion S ... Space

Claims (4)

It is fixed to the frame of the vehicle body and formed in a wall shape, and connects the inner member that covers the wheel from the inside in the vehicle width direction with the inner member and the outer plate that constitutes the design surface of the vehicle, and forms the outer peripheral surface of the wheel. It is a wheel house structure of a vehicle provided with an outer member to cover.
The outer member straddles the space formed between the inner member and the outer plate.
The lining portion of the outer member located inside the vehicle width direction with respect to the space covers the wall surface of the inner member and is connected to the inner member thereof, and is located outside the vehicle width direction with respect to the space. A wheel house structure of a vehicle in which the outer edge portion of the outer member is connected to the outer plate. The wheel house structure of the vehicle according to claim 1.
The lining portion of the outer member is a wheel house structure of a vehicle that covers the side wall surface from the ceiling surface forming the wall surface of the inner member. The vehicle foil house structure according to claim 1 or 2.
The wheel support mechanism is connected to the inner member.
The inner member is a wheel house structure of a vehicle formed of a different material having a strength larger than that of the outer member. The wheel house structure of the vehicle according to any one of claims 1 to 3.
A flange portion is formed on the outer edge of the inner member in the vehicle width direction.
A wheel house structure of a vehicle in which a hook portion hung on a flange portion of the inner member is formed on the outer peripheral surface of the outer member.

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