WO2020174989A1

WO2020174989A1 - Vehicle body side part structure

Info

Publication number: WO2020174989A1
Application number: PCT/JP2020/003183
Authority: WO
Inventors: 浩行酒井
Original assignee: 本田技研工業株式会社
Priority date: 2019-02-28
Filing date: 2020-01-29
Publication date: 2020-09-03
Also published as: CN113226897A; CN113226897B; DE112020000983T5; JP7077472B2; JPWO2020174989A1

Abstract

A rear wheelhouse (11) comprises a rear wheelhouse inner portion (11I) and a rear wheelhouse outer portion (11O). A wheelhouse reinforcement member (14) has: a reinforcement member body portion (14h) that, together with an outer base wall (11O-b) of the rear wheelhouse outer portion, forms a reinforcement closed cross-section (22); an outer joining portion that is joined to the outer surface of the outer base wall; and an inner joining portion that extends outward in the radial direction of the rear wheel. The outer base wall (11O-b) is disposed offset further toward the axis side of the rear wheel in comparison to an inner base wall (11I-b). The inner joining portion is disposed on the reverse side from the joining surface of an outer upright wall (11O-a) to an inner upright wall (11I-a), and is joined to the outer upright wall (11O-a) and the inner upright wall (11I-a) while forming a three-layer structure therewith.

Description

\¥02020/174989 1 ((17 2020/003183 Clarification

Title of invention: Body side structure

Technical field

The present invention relates to a vehicle body side portion structure including a rear wheel house that covers an outer side of a rear wheel.

The present application claims priority on the basis of Japanese Patent Application No. 20 1 9 — 0 3 5 5 5 2 filed on February 28, 2019, the content of which is incorporated herein.

Background technology

[0002] A rear wheel house that covers the outside of the rear wheels is provided on the rear side of the vehicle. In a rear wheel house, a rear wheel house inner, which is a panel material that is usually arranged on the inner side in the vehicle width direction, and a rear wheel house outer, which is a panel material that is arranged on the outer side in the vehicle width direction, are mutually joined by welding or the like. It is constructed by joining. A side outer panel, which forms the design surface of the vehicle body, is joined to the outside of the rear wheel house.

[0003] In recent years, in this type of vehicle body side structure, it has been desired to improve the rigidity around the rear wheel house in order to enhance the steering stability and more effectively receive the impact load from the vehicle body side. There is. As a countermeasure against this, there has been devised a structure in which a wheel house reinforcing member is joined to the upper surface side of the rear wheel house so that a reinforced closed cross section is formed between the wheel house reinforcing member and the rear wheel house (for example, See Patent Document 1).

The rear wheel house of Patent Document 1 is formed by mutually joining a substantially circular arc-shaped rear wheel house inner and a rear wheel house outer, and a wheel house reinforcing member is joined to an upper surface side of the rear wheel house outer. .. The reinforcing closed surface is surrounded by the wheel house reinforcing member and the rear wheel house outer.

[0005] Specifically, the rear wheel house inner and the rear wheel house outer include a base wall that covers the outside of the outer peripheral surface of the rear wheel, and a radial outside of the rear wheel from the end of the base wall. \¥02020/174989 2 (:171?2020/003183

The upstanding walls (flange portions) extending toward the side, and the upstanding walls are butted against each other and joined by spot welding or the like. In addition, the wheel housing reinforcing member is a reinforcing member main body that forms a reinforcing closed section with the rear wheel house outer, and an outer flange that is joined to the outer surface of the base wall at the vehicle width direction outer end of the reinforcing member main body. And an inner flange portion joined to the standing wall of the rear wheel house inner at the vehicle width direction inner end of the reinforcing member main body portion. The inner side flange is welded and fixed to the door opening side of the standing wall of the rear wheel house inner than the joint with the rear wheel house outer. Due to this, a large area of the reinforced closed section is secured.

Prior art documents

Patent literature

[0006] Patent Document 1: Japanese Patent Laid-Open No. 20000_3 1 2 3 5 8

Summary of the invention

Problems to be Solved by the Invention

[0007] However, in the vehicle body side structure described in Patent Document 1, the inner flange portion of the wheel house reinforcing member is closer to the door opening side than the joint portion with the rear wheel house outer of the standing wall of the rear wheel house inner. Since it is welded and fixed to the outside, the outside of the joint between the rear wheel house inner and the rear wheel house outer is covered like a bag by the wheel house reinforcing member. For this reason, the wheel house reinforcing member cannot be joined to the standing wall of the rear wheel house inner until the rear wheel house outer and the rear wheel house inner are welded (spot welding). Therefore, in the case of the vehicle body side structure described in Patent Document 1, it is not possible to efficiently join the three members of the wheel house reinforcing member, the rear wheel house outer, and the rear wheel house inner, and the efficiency of the joining work is improved. Is desired.

[0008] An aspect of the present invention is a vehicle body side capable of efficiently joining three members of a wheel house reinforcing member, a rear wheel house outer, and a rear wheel house inner. \\02020/174989 3 (:171?2020/003183

Provide a partial structure.

Means for solving the problem

The vehicle body side structure according to the present invention employs the following configuration.

(1) A vehicle body side structure according to the present invention includes a rear wheel house that covers an outer side of a rear wheel, and a rear wheel house that is disposed outside the rear wheel house and that extends along a peripheral edge of a door opening. A side outer panel that forms a closed cross section that extends substantially along the outer peripheral surface shape of the rear wheel, and a wheel house reinforcing member that forms a reinforced closed cross section between the rear wheel house and the inside of the closed cross section, The rear wheel house includes a rear wheel house inner that is a panel material that is arranged on the inner side in the vehicle width direction, and a rear wheel house outer that is a panel material that is arranged on the outer side in the vehicle width direction. The rear wheel housing inner extends from the inner base wall facing the outer peripheral surface of the rear wheel, and from the outer end of the inner base wall in the vehicle width direction toward the outer side in the radial direction of the rear wheel (door opening side). And a rear wall house outer wall facing the outer peripheral surface of the rear wheel, and a diameter of the rear wheel from an inner end in the vehicle width direction of the outer base wall. An outer standing wall extending toward the outside in the direction, the inner standing wall and the outer standing wall are joined to each other, and the outer base wall is located at the rear of the inner base wall. The wheel house reinforcing member is arranged on the axial side of the wheel in an offset manner, and the wheel house reinforcing member includes a reinforcing member main body portion that forms the reinforcing closed cross section with the outer base wall, and a reinforcing member main body portion. An outer joint portion that is joined to the outer surface of the outer base wall at an outer portion in the vehicle width direction; and an inner joint portion that extends from the inner end in the vehicle width direction of the reinforcing member main body portion toward the radially outer side of the rear wheel. The inner joint portion is arranged on the back surface of the joint surface of the outer upright wall with the inner upright wall, and is joined to the outer upright wall and the inner upright wall in a three-layered state. ..

With the configuration of the above aspect (1), in the wheel house reinforcing member, the outer joint is joined to the outer surface of the outer base wall of the rear wheel house outer, and the inner joint is the rear wheel house outer. Outer standing wall and rear wheel house \\02020/174989 4 (:171?2020/003183

Three inner layers are joined to the inner standing wall of the inner layer. At this time, the inner joint portion of the wheel house reinforcing member can be easily joined to the outer standing wall and the inner standing wall by spot welding in a three-ply state.

Also, when the wheel house reinforcing member and the side outer panel are connected to the rear wheel house, the rear wheel house and the side outer panel extend substantially along the outer peripheral surface shape of the rear wheel (along the peripheral edge of the door opening). A cross section is formed, and a reinforced closed cross section formed by the rear wheel house outer and the wheel house reinforcing member is formed inside the closed cross section. Moreover, by arranging the outer base wall on the axial center side of the rear wheel with respect to the inner base wall in an offset manner, it is possible to increase the area of the strengthened closed section. As a result, the rigidity and strength around the rear wheel house can be efficiently increased for the child without relying on the thickness of the steel plate.

[001 1] (2) In the aspect of (1) above, in the rear wheel house outer, the outer base wall is formed substantially parallel to the outer peripheral surface of the rear wheel in a cross section along the vehicle width direction. At the edge of the outer base wall on the outer side in the vehicle width direction, an inclined wall inclined toward the axial center side of the rear wheel toward the outer side in the vehicle width direction is provided, and the side outer panel described above includes: An inclined joint wall that is joined to the inclined wall may be provided.

[0012] In this case, since the outer base wall of the rear wheel house outer is formed substantially parallel to the outer peripheral surface of the rear wheel, the outer base wall can be connected to the rear wheel without causing interference with the rear wheel. It is possible to get close enough to. Therefore, it is possible to secure a sufficiently large cross-sectional area of the reinforced closed section in the limited space around the rear wheel.

The outer base wall that is curved in the front-rear direction of the vehicle will have a greater degree of curvature (smaller curvature) if the outer base wall is placed more offset toward the rear wheel axis than the inner base wall. It becomes difficult to press-form the bending angle of the outer edge of the base wall in the vehicle width direction at a substantially right angle. However, in this configuration, an inclined wall is provided at the outer edge of the outer base wall in the vehicle width direction, and the inclined joint wall of the side outer panel is joined to the inclined wall. others \¥02020/174989 5 卩 (: 171?2020/003183

Therefore, when this configuration is adopted, the outer edge of the outer base wall in the vehicle width direction does not need to be sharply bent at a substantially right angle, and the rear wheel house outer can be easily processed.

(3) In the aspect of (2) above, at the edge of the inclined joint wall of the side outer panel, the inner surface and the outer surface are flat surfaces substantially orthogonal to the axial center of the rear wheel, A bending flange portion that bends may be provided on the axial center side.

[0014] In this case, since it is not necessary to accurately cut the end of the inclined joint wall of the side outer panel, the side outer panel can be easily processed. Further, by bending the end portion of the inclined joint wall to form the bending flange portion, the dimensional accuracy of the end portion of the inclined joint wall can be easily increased. Also, since the bending flange is bent toward the axis of the rear wheel, a dust sealer can be easily installed on the back side of the bending flange at the joint between the end 0 of the inclined joint wall and the end of the inclined wall. It can be applied. Specifically, when applying the dust sealer, the bending flange can be used as a guide for applying the dust sealer, and the protrusion of the dust sealer from the end of the inclined wall can be hidden by the bending flange. it can.

(4) In the aspect of (2) or (3), a garnish may be attached to the side outer panel to cover an outer side of the inclined joint wall in the vehicle width direction.

[0016] In this case, joint marks and the like on the inclined joint wall are covered with the garnish. Therefore, the appearance from the outside can be improved, and the clothes of the occupant can be prevented from swinging at the free end of the bending flange portion.

(5) In the aspect of any one of the above (2) to (4), a side sill reinforcement member at a rear portion of the side sill is arranged at a front portion of the rear wheel house, and The rear edge portion is bolted to the front edge portion of the wheel house reinforcing member, and is sandwiched between the inclined wall and the inclined joint wall on the outer side in the vehicle width direction. To be joined to \¥02020/174989 6 卩(: 171?2020/003183

May be.

[0018] In this case, the front part of the rear wheel house is firmly coupled to the rear part of the side sill reinforcing member at a plurality of positions outside in the vehicle width direction. Further, since the closed closed section reinforced by the wheel house reinforcing member can be continuous with the closed section of the side sill with high rigidity, the rigidity from around the rear wheel house to the side sill can be efficiently increased.

Effect of the invention

[0019] In the aspect of the present invention, since the inner joint portion of the wheel house reinforcing member is joined to the outer standing wall of the rear wheel house outer and the inner standing wall of the rear wheel house inner in three-ply state, It is possible to efficiently join the three members, the rear wheel house outer and the rear wheel house inner, by spot welding. Therefore, when the vehicle body side portion structure of the present invention is adopted, the work efficiency during manufacturing can be improved.

Brief description of the drawings

[0020] [Fig. 1] Fig. 1 is an exploded perspective view of a vehicle of an embodiment.

FIG. 2 is a side view of the vehicle according to the embodiment, which is close to the rear part.

[FIG. 3] FIG. 3 is a perspective view of a portion of the vehicle of the embodiment corresponding to the 丨丨丨 section of FIG. 1.

[Fig. 4] Fig. 4 is a perspective view of the vehicle of the embodiment in which a side outer panel corresponding to a part of the vehicle in Fig. 1 is attached.

[Fig. 5] Fig. 5 is a cross-sectional view corresponding to the V _ V cross section of Fig. 3 of the vehicle of the embodiment.

[Fig. 6] Fig. 6 is a cross-sectional view of the vehicle of the embodiment corresponding to the V I -V I cross section of Fig. 3.

[Fig. 7] Fig. 7 is a partial cross-sectional perspective view of a portion of the vehicle according to the embodiment corresponding to the V I -V I I cross-section in Fig. 2.

MODE FOR CARRYING OUT THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, front/rear, top/bottom, left/right refer to front/rear, top/bottom, left/right of a vehicle, unless otherwise specified. In addition, in appropriate places in the drawing, an arrow II pointing upwards of the vehicle, an arrow pointing forward of the vehicle, and a left side of the vehicle are indicated. \¥02020/174989 7 卩 (: 171?2020/003183

Arrows 1_ 1 ^~ 1 are marked.

[0022] Fig. 1 is an exploded perspective view of a vehicle body 1 of a vehicle of the present embodiment as seen from above a left front part, and Fig. 2 is a left side view of a rear portion of the vehicle body 1. The vehicle body 1 of this embodiment is formed substantially symmetrically on the left and right. The side structure of the vehicle body will be described below with reference to the drawings showing the left side surface of the vehicle body 1.

As shown in Figs. 1 and 2, the vehicle body 1 includes a side sill 10, a rear wheel house 11, a quarter pillar 12, a roof side rail 1 3, a wheel house reinforcement member 14, and a side outer panel 1 It has 5 and.

[0023] The side sill 10 is arranged at a lower end of a side portion outside the vehicle compartment, and extends substantially along the vehicle body front-rear direction. The rear wheel house 11 is arranged on the rear side of the side sill 10 so as to cover the upper outside of the rear wheel “. The quarter pillars 12 are installed from near the top of the rear wheel house 11 to the roof side rail 1 3 The upper side is connected to the roof side rail 1 3. The roof side rail 13 is located on the side of the roof of the vehicle body and extends substantially in the longitudinal direction of the vehicle. The wheel house reinforcement member 14 is joined to the lower end of the quarter pillar 12 and the upper surface side of the rear wheel house 11 near the front part, and is attached to the periphery of the rear door opening 18 (door opening). Along this, it extends toward the rear of Side Seal 10.

[0024] The side outer panel 15 is a panel material that forms the design surface of the vehicle side portion. The side outer panel 15 has a side sill outer portion 1553 that forms a part of the outside of the side sill 10 and a wheel housing portion 1513 that covers the outside of the rear wheel house 11 1. ..

The side silt 10 has a closed cross section extending in the front-rear direction of the vehicle body formed by coupling the side silt stiffener 103 to the outside of a side sille inner (not shown). The side sill outer section 1 53 of the side outer panel 15 is connected to the outside of the side sill stiffener 103. A closed cross section is also formed between the side silt stiffener 103 and the side silt outer portion 15 3. Also, at the rear end of the side sill inner and side sill stiffener 103, \¥02020/174989 8 卩 (: 171?2020/003183

The side sill reinforcement member 50 is integrally connected, and the side sill reinforcement member 50 is connected to the front region of the rear wheel house 11.

[0026] Further, the side pillars 10 and the roof side rails 13 are connected to each other by a center pillar 16 at a substantially central portion in the vehicle front-rear direction. A front door opening 17 opened and closed by a front door (not shown) is provided on the front side of the center pillar 16, and a rear door opened and closed by a rear door (not shown) is provided on the rear side of the center pillar 16. Openings 18 are provided. The rear door opening 18 is composed of a center pillar 16, a side sill 10, a front area of the rear wheel house 11, a quarter pillar 12 and a roof side rail 13. There is. The corner portion ◯ at the rear lower end of the rear door opening 18 is formed in a substantially V shape in a side view by the connecting portion between the front region of the rear wheel house 11 and the rear region of the side sill 10. .. In this V-shaped side view, the cross-sectional area must be reduced in order not to sacrifice the ease of passengers getting on and off. For this reason, the front region of the rear wheel house 11 is designed with a cross-sectional structure that allows high rigidity in a limited space. The detailed cross-sectional structure of this portion will be described later.

[0027] FIG. 3 is a perspective view of a portion corresponding to the 丨丨丨 portion of FIG. 1, and FIG.

FIG. 2 is a perspective view showing a state where the side outer panel 15 corresponding to the II part is attached. In addition, Figure 5 shows

6 is a cross-sectional view corresponding to the cross-section, and FIG. 6 is a cross-sectional view corresponding to the V V -V V cross-section in FIG. It should be noted that FIGS. 5 and 6 show a state in which the side outer panel 15 is attached to the rear wheel house 11.

As shown in Fig. 5 and Fig. 6, the rear wheel house 11 is composed of the rear wheel house inner 1 1 1 which is the panel material arranged on the inner side in the vehicle width direction and the panel material arranged on the outer side in the vehicle width direction. It has a rear wheel house outer 1100. The rear wheel house inner 1 1 is the inner base wall 1 1 facing the outer peripheral surface of the rear wheel.

The inner standing wall 1 1 1 — 3 has an inner standing wall 1 1 1 — 3 that extends from the outer side end of the vehicle in the vehicle width direction toward the outer side in the radial direction of the rear wheel. \¥02020/174989 9 卩 (: 171?2020/003183

To do. The rear wheel house outer 1 1 0 is located behind the outer base wall 1 1 _ _ 0 and the outer base wall 1 1 _ 0 _ facing the outer peripheral surface of the rear wheel. There is an outer standing wall 1 1 0 _ 3 extending outward in the radial direction of the wheel ", and the outer base wall 1 1 0 1 is the axial center of the rear wheel" rather than the inner base wall 1 1 1 1 The rear wheel house inner 1 1 I and the rear wheel house outer 1 1 0 are arranged on the ◯ side as an offset, and the inner standing wall 1 1 丨 13 and the outer standing wall 1 1 _ 3 are overlapped with each other. Inner standing wall 1 1 丨

The outer standing wall 1113 and the outer standing wall 1113 are joined to each other by spot welding.

[0028] In the rear wheel house inner 1 1 丨, the inner base wall 1 1 _ _ 匕 gently inclines downward toward the inner side of the vehicle, and the inner base wall 1 1 丨 _ 1 0 extends downward. An inner cover wall 1 1 _ _ 〇 is bent and extends. Inner wall 1 1 丨

Covers the inner side of the rear wheel in the vehicle width direction,

To prevent mud splashing from inside toward the inside of the vehicle.

[0029] On the other hand, the outer base wall 1 1 0 1 13 of the rear wheel house outer 1 1 1 0 is the inner base wall 1 1 1 1 1 of the rear wheel house inner 1 1 1

It is located closer to the outer peripheral surface of the rear wheel \/\/ than the rear wheel "offset on the side of the rear wheel". That is, the outer standing wall of the rear wheel house outer 1 1 0. 1 1 ○ _ 3 extends below the overlap (joint) with the inner standing wall 1 1 丨 13 of the rear wheel house inner 1 1 丨, and the outer base wall 1 1 _ _ The outer base wall 1 1 0 _ 3 extends from the lower end of the outer wall 1 1 0 _ 3 by bending at a substantially right angle outward in the vehicle width direction. The cross section along the width direction is formed substantially parallel to the outer peripheral surface of the rear wheel ".

[0030] The outer standing wall 1 1 0 1 3 of the rear wheel house outer 1 1 0 is arranged such that the upper end side region is outside the vehicle width direction than the overlapping part (joint part) with the inner standing wall 1 1 I _ 3. After bending like a crank, it extends straight upward. Hereinafter, this straightly extending portion is referred to as the upper end flange portion 1 1 0_ 3 ad 1, and the overlapping portion with the inner standing wall 1 1 1 3 is referred to as the intermediate flange 1 1 0-3 ad 2.

[0031] In addition, the outer side wall 1 10 _ 13 has an edge portion on the outer side in the vehicle width direction, \¥02020/174989 10 (:171?2020/003183

Inclined walls 1 1 0 _ _ that incline toward the axis 〇 side of the rear wheels toward the outside are connected. The inclined walls 1 1 0 _ 〇 are more than the outer ends of the rear wheels “in the vehicle width direction. The outer base wall 1 1 0 1 !0 and the sloping wall 1 1 1 10 are the outer side of the rear wheel with the minimum required clearance around the rear wheel <3 !_. Is located in.

[0032] Of the wheel house portion 1513 of the side outer panel 15, the front area 15 facing the rear door opening 18 is located in the rear wheel house outer as shown in Figs. 5 and 6. An outer wall 1 1 0 _ 13 that covers the upper side of the outer base wall 1 1 0 _ 13 and a side wall 2 0 3 that covers the outer base wall 1 1 0 _ 13 laterally outside the vehicle width direction. And are equipped with. The front area 1 5 1 0 _ 1 of the upper wall 20 inward in the vehicle width direction is bent upward and extends to the upper flange portion 1 1 of the rear wheel house outer 1 1 0.

Standing walls 20 joined to 1 are connected in series. The upper wall 20 and the standing wall 20 of the front area 15 _ 1 form the peripheral edge of the corner <3 of the rear lower end of the rear door opening 18. At the lower end of the side wall 203 of the front region 1561-1, an inclined joint wall 209 that inclines toward the axis ◯ side of the rear wheel ′ extends outward in the vehicle width direction.

[0033] The slanted joint wall 209 is superposed on the slanted wall 1 110 of the rear wheel house outer 110, and is joined to the slanted wall 110 _ 0 by spot welding. Also, at the outer edge of the inclined joint wall 209 in the vehicle width direction, the inner surface and the outer surface are bent toward the axis ◯ so that the inner surface and the outer surface become a plane substantially orthogonal to the axis ◯ of the rear wheel. A bent flange portion 20 "is provided.

The wheel house part 15 of the side outer panel 15 is joined to the rear wheel house outer 110 to form the outer peripheral surface shape of the rear wheel ``(rear side door) with the rear wheel house outer 110. A closed cross section 21 is formed that extends substantially along the corner portion <3) of the rear lower end of the opening 18. It should be noted that the end portion of the inclined wall 1 10 _ 〇 of the rear wheel house outer 1 1 0 and the inclined joint are formed. A dust sealer 3 is applied between the ends of the wall 209 to prevent dust from entering the inside of the closed cross section 21. \¥02020/174989 11 卩 (: 171?2020/003183

[0034] The wheel house reinforcing member 14 is provided in the front region 15 of the wheel house portion 15

Inside the closed cross section 21 between 13 _ 1 and the rear wheel house outer 1 1 0, a reinforced closed cross section 2 2 is formed with the rear wheel house outer 1 1 0. The reinforced closed section 22 extends substantially along the arc shape of the front area of the rear wheel house 11.

[0035] The wheel house reinforcing member 14 has a reinforcing member main body portion 1 4 II having an upper wall 14 and a side wall 1 4 3 which is bent downward from an end portion of the upper wall 14 4 on the outer side in the vehicle width direction. And an outer flange portion 140 that extends outward from the lower end of the side wall 1 4 3 of the reinforcing member main body 1 14 II in the vehicle width direction and an inner side of the upper wall 1 4 of the reinforcing member main body 1 4 II in the vehicle width direction. The inner flange portion 14 I extends from the end of the rear wheel toward the outside (almost upward) in the radial direction of the rear wheel. The outer flange portion 140 is an outer flange of the rear wheel house outer 1 110. The outer flange is connected to the upper surface of the outer wall 1 1 0 _ 13 and the inner flange 1 4 is the outer side of the outer standing wall 1 1 0 _ 3 of the rear wheel house outer 1 1 0. The reinforcing member main body part 14 II forms a substantially rectangular reinforcing closed cross-section 22 with the rear wheel house outer part 110. In addition, the inner flange part 14 is the same as the inner standing wall 1 1 _ 3 of the rear wheel house inner 1 1 1 3 of the intermediate flange part 1 1 0 1 3 of the outer standing wall 1 1 0 1 3. The inner flange 1 4 丨 (inner joint) is overlaid on the back surface side (outer side in the vehicle width direction) of the joint surface and the intermediate flange portion 1 1 〇 _ 3 and 2 of the outer standing wall 1 1 _ _ 3. It is joined to the inner standing wall 1 1 1 — 3 by spot welding in the state of three layers.

[0036] In addition, the side-sill reinforcing member 5 integrally coupled to the rear end of the side-sill 10 is provided.

0 is bent and extended toward the rear upper side so as to overlap with the upper surface side of the front region of the rear wheel house 11. As shown in Fig. 6, the side sill reinforcing member 50 includes an upper wall 50 r that is superposed on an upper wall 14 r of the wheel house reinforcing member 14 and an end portion of the upper wall 5 0 on the inner side in the vehicle width direction. From the end of the side wall 5 0 3 toward the outside in the vehicle width direction, the inclined flange portion 5 0 9 that inclines toward the axis 〇 side of the rear wheel, and the upper wall 5 0 3. Rear from the inner edge of 0 \¥02020/174989 12 boxes (: 17 2020/003183

And a rising flange portion 509 extending outward in the radial direction of the wheel.

[0037] The slanted flange portion 509 of the side sill reinforcing member 50 is sandwiched between the slanted wall 1109 of the rear wheel house outer 1 10 and the slanted joint wall 209 of the side outer panel 15. In this state, the inclined wall 1 1 0 _ _ and the inclined joint wall 209 are joined by spot welding. The standing flange portion 50 of the side sill reinforcement member 50 is sandwiched between the standing wall 2 0 of the side outer panel 15 and the upper flange portion 1 1 0-3 of the rear wheel house outer 1 1 0. Then, the standing wall 20 and the upper flange 1 1 0 1

It is connected to 1 by spot welding.

[0038] In addition, a bolt shed hole 51 is formed substantially in the center of the upper wall 50 of the side sill reinforcement member 50 in the vehicle width direction, and a bolt shed hole 5 1 is formed above the bolt shed hole 5 1. Weld nut 52 is provided. A similar bolt insertion hole 5 3 is formed in the upper wall 14 of the wheel house reinforcing member 14 at a position corresponding to the bolt shed hole 5 1 of the side sill reinforcing member 50. Between the upper wall 14 of the wheel house reinforcement member 14 and the outer base wall 1 110 1 13 of the rear wheel house outer 1 1 0, the shaft of the fastening bolt 2 3 is threaded. 4 is installed.

The shaft portion of the fastening bolt 23 is welded from the lower side of the outer base wall 1 10 _ 13 through the bolt shed hole 5 6 to the collar 24 and the bolt shed holes 5 3, 5 1. Fastened to Nut 52.

As a result, the side sill reinforcing member 50 is integrally connected to the wheel house reinforcing member 14 and the rear wheel house outer 110 by the fastening bolts 23. As a result, the reinforcement closed cross section 2 2 formed by the wheel house reinforcement member 14 and the rear wheel house exterior 110 is continuous with the closed cross section of the side sill 10.

[0039] FIG. 7 is a partial cross-sectional perspective view of the wheel house portion 1 5 6 of the side-outer panel 15 in which a portion corresponding to the V I-VI cross-section in FIG. \¥02020/174989 13 卩(: 171?2020/003183

As shown in Fig. 4, slanted joint walls 209 and bending flanges 209 are arranged at the outer edge of the front part 155 _ 1 of the wheel house 513 in the vehicle width direction. And, when the inclined joint wall 209 is spot welded to the inclined wall 110 _ 〇 of the rear wheel house outer 110, a welding mark (joint mark) is formed on the surface thereof. Therefore, as shown in Fig. 2 and Fig. 7, the sloped joint wall 2 09 and the bending flange 2 are formed on the outer edge of the front part 1 5 13-1 of the wheel house 1 5 13 in the vehicle width direction. A garnish 60 is installed to cover the outer side of the 0" in the vehicle width direction.

[0040] As described above, the vehicle body side structure of the present embodiment includes the rear wheel house 11 and the side outer panel 15 at the peripheral edge of the door opening.

A closed cross section 21 extending substantially along the outer peripheral surface shape is formed, and a reinforced closed cross section 22 formed by the rear wheel house outer 110 and the wheel house reinforcing member 14 is formed inside the closed cross section 21. Therefore, when the vehicle body side structure of the present embodiment is adopted, the rigidity and strength around the rear wheel house can be efficiently increased.

In addition, in the vehicle body side structure of the present embodiment, the inner flange portion 14 of the wheel house reinforcing member 14 is the outer standing wall 1 11 13 of the rear wheel house outer 11 10. Rear wheel house Inner 1 1 丨 Inner standing wall 1 1 丨 _ 3 is overlaid on the back side of the joint surface, outer standing wall 1 1 0 — 3 and inner standing wall 1 1 丨 1 3 in a stacked state Are joined together. Therefore, the three members of the wheel house reinforcement member 14, the rear wheel house outer member 110, and the rear wheel house inner member 11 can be efficiently joined by spot welding. Therefore, when the vehicle body side part structure of the present embodiment is adopted, the work efficiency in manufacturing can be improved.

[0042] Further, in the vehicle body side part structure of the present embodiment, the outer base wall 1 1 0-13 is offset and arranged on the rear wheel "axis center ◯ side rather than the inner base wall 1 1 丨 1 swoop. Therefore, it is possible to bring the outer base wall 1101 sufficiently close to the rear wheel ". Therefore, reinforcement is performed within the limited space of the rear wheel ". \¥02020/174989 14 卩 (: 171?2020/003183

A sufficiently large cross-sectional area of the closed cross section 22 can be secured, and the rigidity around the rear wheel can be efficiently increased.

Further, in the vehicle body side structure of the present embodiment, in the cross section along the vehicle width direction, the outer base wall 1 110 1 13 of the rear wheel house outer 1 10 is located outside the rear wheel. The outer wall 1 1 0 _ 13 is formed so as to be substantially parallel to the peripheral surface, and an inclined wall 1 1 0 _ 0 is provided at the outer edge of the outer base wall 1 1 0 _ 13 in the vehicle width direction. The wheel house part 513 of 5 is provided with an inclined joint wall 209 that is joined to the inclined wall ₁ 110. In the case of this structure, the outer base wall] _{1 0} _ 匕Since it is formed substantially parallel to the outer peripheral surface of the rear wheel, it is possible to bring the outer base wall 1101 swath sufficiently close to the rear wheel without causing interference with the rear wheel. Therefore, it is possible to secure a sufficiently large cross-sectional area of the reinforcing closed cross section 22 within the limited space of the rear wheel, and to efficiently increase the rigidity around the rear wheel house. In the case of this embodiment, since the rear side door opening 18 is not narrowed, the occupant's entry/exitability is not sacrificed.

[0044] In addition, the outer base walls 1 0 to 13 that are curved in the front and rear of the vehicle are the outer base walls.

If the 1 1 sq. is located off the inner base wall 1 1 丨 1 sq. on the axis 〇 side of the rear wheel, the degree of bending will increase and the outer base wall 1 1 _ _ sq. However, it is difficult to press-form the bending angle of the outer edge of the vehicle in the vehicle width direction at a substantially right angle. The inclined wall 1 1 0 _ _ is provided on the sloping wall, and the sloping joint wall 2 0 9 of the side-outer panel 15 is joined to the sloping wall 1 1 _ _ _. Since the outer edge of the outer base wall 110 _ does not need to be bent at a substantially right angle in the vehicle width direction, the rear wheel house outer 1 110 can be processed more easily. ..

[0045] Further, in the vehicle body side structure of the present embodiment, since the bending flange portion 20" is provided at the edge of the inclined joint wall 209 of the side outer panel 15", the side flange is provided at the time of manufacturing. It is not necessary to accurately cut the end of the inclined joint wall 209 of the outer panel 15. This makes it easier to process the side outer panel 15 \¥02020/174989 15 卩 (: 171?2020/003183

.. In the structure of the present embodiment, the end portion of the inclined joint wall 209 can be bent to form the bending flange portion 20 ″, so that the dimensional accuracy of the end portion of the inclined joint wall 209 can be easily increased. ..

[0046] In the vehicle body side structure of the present embodiment, the bending flange portion 20 "is the rear wheel.

Since it is bent to the side of the axis 〇 of the bending flange, it is easy to align the end of the inclined joint wall 20 and the end of the inclined wall 1 1 0 _ 〇 on the back side of the bending flange 20 ”. It is possible to apply the dust sealer 3. That is, when applying the dust sealer 3, the bending flange portion 20 "can be used as a guide for the application of the dust sealer 3, and the inclined wall 1 1 0 1 0 1. The protrusion of the dust sealer 3 from the end of the can be hidden by the bending flange portion 20".

Further, in the vehicle body side structure of the present embodiment, since the garnish 60 covering the lateral side of the inclined joint wall 209 in the vehicle width direction is attached to the side outer panel 15, the inclined joint wall 2 The joint marks on the surface can be covered by the garnish 60. Therefore, when the structure of this embodiment is adopted, the appearance from the outside can be improved and the occupant's clothing and the like can be prevented from swinging at the free end of the bending flange portion 20 ".

Furthermore, in the vehicle body side part structure of the present embodiment, the rear edge of the side sill reinforcing member 50 is joined to the front edge of the wheel house reinforcing member 14 by the fastening bolts 23, and the inclined flange is formed. The part 5 09 is sandwiched between the inclined wall 1 1 0 _ _ and the inclined joint wall 209, and is joined to the inclined wall 1 1 0 _ _ and the inclined joint wall 209. Therefore, the front part of the rear wheel house 11 is firmly connected to the rear part of the side sill reinforcing member 50 at a plurality of positions. Further, in this structure, the closed closed cross section 22 by the wheel house reinforcing member 14 can be connected to the closed cross section of the side sill 10 with high rigidity. Therefore, when this configuration is adopted, it is possible to efficiently increase the rigidity from around the rear wheel house to the side sills 10.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the spirit of the invention. \¥02020/174989 16 卩 (: 17 2020/003183

Explanation of symbols

[0050] 1 ○ Side sill

1 1 Rear wheel house

1 1 丨 Rear Wheel House Inner

1 1 1 —8 Inner standing wall

1 1 1 _1 〇 Inner base wall

1 1 〇 Rear wheel house outer

1 1 〇-3 Outer standing wall

1 1 ○ _! 〇 Outer wall _ wall

1 1 0-0 Inclined wall

1 4 Wheel house reinforcement member

1 4 II Reinforcement member body

1 4 0 Outer flange part (outer joint part)

1 4 Inner flange (inner joint)

1 5 Side outer panel

20 Slope connection wall

20" Bending flange

2 1 Closed section

22 Reinforced closed section

5 Side sill reinforcement members

60 garnish

* Axle

Claims

\¥02020/174989 17 卩(: 17 2020/003183 Claims

[Claim 1] A rear wheel house that covers the outside of the rear wheel,

A side outer panel that is disposed outside the rear wheel house and that forms a closed cross section that extends substantially along the outer peripheral surface shape of the rear wheel with the rear wheel house along the periphery of the door opening; A wheel house reinforcing member that forms a reinforcing closed cross section between the rear wheel house and the inside of the closed cross section;

The rear wheel house includes a rear wheel house inner, which is a panel material arranged inside the vehicle width direction, and a rear wheel house outer, which is a panel material arranged outside the vehicle width direction,

The rear wheel house inner has an inner base wall facing the outer peripheral surface of the rear wheel, and an inner standing wall extending from a vehicle width direction outer end of the inner base wall toward a radial outer side of the rear wheel. At the same time, the rear wheel house outer extends from the inner side end of the outer base wall facing the outer peripheral surface of the rear wheel in the vehicle width direction toward the outer side in the radial direction of the rear wheel. And an outer standing wall,

The inner upright wall and the outer upright wall are joined to each other, and the outer base wall is arranged offset from the inner base wall toward the axial center of the rear wheel.

Said Hui ^_ Ruhausu reinforcing member,

A main body of a reinforcing member that forms the reinforcing closed section with the outer base wall;

An outer joint portion joined to an outer surface of the outer base wall at a vehicle width direction outer portion of the reinforcing member main body portion;

An inner joint portion extending from the inner end in the vehicle width direction of the reinforcing member main body toward the outer side in the radial direction of the rear wheel,

The inner joint portion is disposed on a back surface of a joint surface of the outer upright wall with the inner upright wall, and the outer upright wall and the inner upright wall. \¥02020/174989 18 卩 (: 171-12020/003183

It is joined to the wall with three layers

Body side structure.

[Claim 2] In the rear wheel house outer, the outer base wall is formed substantially parallel to the outer peripheral surface of the rear wheel in a cross section along the vehicle width direction, and the outer base wall is formed. An inclined wall that inclines toward the axial center of the rear wheel toward the vehicle width direction outer side is provided at an edge portion of the vehicle width direction outer side, and the side outer panel is joined to the inclined wall. Inclined joint wall is provided

The vehicle body side structure according to claim 1.

[Claim 3] At the edge of the inclined joint wall of the side outer panel, the inner surface and the outer surface are bent toward the axis so that the inner surface and the outer surface are planes substantially orthogonal to the axis of the rear wheel. Bending flange is provided

The vehicle body side structure according to claim 2.

[Claim 4] A garnish that covers the lateral side of the inclined joint wall in the vehicle width direction is attached to the side outer panel.

The vehicle body side structure according to claim 2 or 3.

[Claim 5] A side sill reinforcing member at the rear of the side sill is arranged at the front of the rear wheel house,

Rear edge of the rhino Doshiru reinforcing member together is bolted to the front edge of the wheel ^_ Ruhausu reinforcing member, in a state of being sandwiched in said inclined wall and the inclined joining wall in the vehicle width direction outer side, wherein Is joined to the inclined wall and the inclined joint wall

The vehicle body side structure according to any one of claims 2 to 4.