Vehicle body rear structure

Abstract

The present application provides a vehicle body rear structure capable of improving the design freedom of a retractor, ensuring the mounting strength of the retractor, and achieving weight reduction. The vehicle body rear structure (1) includes a rear wheel house (70), a rear cross member (60) extending in a vehicle width direction on an inner side of a lower portion of the rear wheel house (70) in the vehicle width direction, a pillar (8) extending upward from an upper portion of the rear wheel house (70), a wheel house reinforcement member provided along the rear wheel house (70) and connecting the rear cross member (60) and the pillar (8), a retractor (150) which is a seat belt winding device, and a bracket (180) for fixing the retractor (150) to a vehicle body, one end portion of the bracket (180) being coupled to the wheel house reinforcement member, and the other portion of the bracket (180) extending from the one end portion toward a front portion or a rear portion of the vehicle body and being coupled to the rear wheel house (70).

Description

Technical Field

[0001] This invention relates to the rear structure of a vehicle body. Background Technology

[0002] In recent years, from the perspective of improving the Earth's environment to mitigate natural disasters, there has been a demand to improve the fuel efficiency of automobiles. On the other hand, there is a need to maintain or improve vehicle crash safety. To meet these requirements, the development of high-strength and lightweight rear-section vehicle structures is underway.

[0003] As a rear structure of the vehicle body, Patent Document 1 describes a structure in which a wheel cover reinforcing member is provided on the upper surface of the wheel cover, and a retractor is installed in front of the wheel cover reinforcing member.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2011-161937 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] In the structure described in Patent Document 1, since the retractor is mounted in front of the wheel cover reinforcement member, the design freedom of the retractor's configuration and mounting angle is limited. Furthermore, when a wheel cover reinforcement member is formed that is suitable for the retractor configuration, the load transfer efficiency of the skeleton member serving as the wheel cover reinforcement member decreases, and the weight increases due to further reinforcement.

[0009] The present invention was proposed in view of the aforementioned problems, and its objective is to provide a rear structure of the vehicle body that can improve the design freedom of the retractor and ensure the installation strength of the retractor, thereby achieving a lightweight structure.

[0010] Methods for solving problems

[0011] To address the aforementioned issues, the rear vehicle body structure of the present invention is characterized by comprising: a rear wheel arch; a rear crossbeam extending in the vehicle width direction on the inner side of the lower portion of the rear wheel arch; a pillar extending upward from the upper portion of the rear wheel arch; a wheel arch reinforcement member disposed along the rear wheel arch and connecting the rear crossbeam to the pillar; a retractor, which is a seatbelt winding device; and a bracket for securing the retractor to the vehicle body, one end of the bracket being coupled to the wheel arch reinforcement member, and the other portion of the bracket extending from the one end towards the front or rear of the vehicle body and being coupled to the rear wheel arch.

[0012] Invention Effects

[0013] According to the present invention, the design freedom of the retractor can be increased, the installation strength of the retractor can be ensured, and lightweighting can be achieved. Attached Figure Description

[0014] Figure 1 This is a side view schematically illustrating the rear structure of a vehicle body according to an embodiment of the present invention.

[0015] Figure 2 yes Figure 1 The enlarged view is a perspective view used to illustrate the retractor and bracket.

[0016] Figure 3 yes Figure 1 The enlarged view is a side view used to illustrate the retractor and bracket.

[0017] Figure 4 This is a schematic rear view of the bracket.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Rear structure of the vehicle body

[0020] 2. Base plate

[0021] 3 Lower longitudinal beams

[0022] 4. Upper reinforcement

[0023] 5 Shock absorber mount

[0024] 6. Connecting components (wheel cover reinforcement components)

[0025] 8 columns

[0026] 60s generation crossbeam

[0027] Wheel covers for those born in the 1970s

[0028] 80 Wheel Cover Upper Reinforcement Component (Wheel Cover Reinforcement Component)

[0029] 90 Wheel Cover Side Reinforcement Component (Wheel Cover Reinforcement Component)

[0030] 140 Column Internal Components

[0031] 150 retractor

[0032] Support level after 170 (support)

[0033] 180 bracket Detailed Implementation

[0034] Next, taking the application of the rear vehicle structure of the present invention to the left side of a vehicle as an example, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the drawings, "front and rear" refers to the front-to-back direction in the vehicle's travel direction, i.e., the front-to-back direction of the vehicle body, and "left and right" refers to the left-to-right direction (vehicle width direction) as viewed from the driver's seat.

[0035] like Figure 1 As shown, the rear body structure 1 of this embodiment of the invention, as a metal frame component constituting the vehicle body, includes a base plate 2, a lower longitudinal beam 3, a rear frame (not shown), an upper reinforcing member 4, and a rear cross beam 60. The rear frame is a component (lower rear frame member) constituting the lower part of a frame (rear frame) extending along the longitudinal direction of the vehicle body, and the upper reinforcing member 4 is a component (upper rear frame member) constituting the upper part of the frame (rear frame upper member). Furthermore, the rear body structure 1, as a metal frame component constituting the vehicle body, includes a shock absorber seat 5 internally located (…). Figure 3 ) rear wheel cover 70.

[0036] The rear structure 1 of the vehicle body, as a metal frame component constituting the vehicle body, includes an upper wheel cover reinforcement member 80, a side wheel cover reinforcement member 90, a connecting member 6, and a pillar 8. The upper wheel cover reinforcement member 80, the side wheel cover reinforcement member 90, and the connecting member 6 are connected to each other to form a wheel cover reinforcement member that reinforces the rear wheel cover 70.

[0037] like Figure 2 As shown, the rear structure 1 of the vehicle body has a retractor 150 as a seat belt winding device, and the components supporting the retractor 150 include a front support 160, a rear support 170, and a bracket 180.

[0038] <Base Plate>

[0039] like Figure 1 As shown, the floor plate 2 is a plate-shaped component that forms the floor surface of the vehicle body. The floor plate 2 is mounted between a pair of lower longitudinal beams 3, 3 on the left and right sides, a pair of rear frames on the left and right sides, and upper reinforcing members 4, 4.

[0040] <Lower longitudinal beam>

[0041] The lower longitudinal beam 3 is a rectangular closed section component that is provided at the end of the vehicle body in the width direction and at the middle of the front-rear direction.

[0042] <Post-Frame>

[0043] The rear frame is a roughly hat-shaped component located at the end of the vehicle body in the width direction and extending in the front-rear direction at the rear. The rear frame has an opening at the top.

[0044] <Upper Reinforcing Component>

[0045] The upper reinforcing member (upper member of the rear frame) 4 is a plate-shaped component that is installed at the end of the vehicle body in the width direction and extends in the front-rear direction at the rear. The upper reinforcing member 4 is installed in such a way that it covers the opening of the rear frame and works in conjunction with the rear frame to form a rectangular closed section.

[0046] <Rear Crossbeam>

[0047] The rear crossbeam 60 is a roughly hat-shaped component that extends along the vehicle width direction on the floor plate 2. The rear crossbeam 60 has an opening at the bottom. The rear crossbeam 60 and the floor plate 2 work together to form a rectangular closed section.

[0048] Rear wheel cover

[0049] The rear wheel cover 70 is a component that houses the rear wheel (not shown). The rear wheel cover 70 integrally includes: a side wall portion 71, which is generally circular in shape and bulges upward when viewed from the side; a peripheral wall portion 72, which is arc-shaped when viewed from the side and extends outward in the vehicle width direction from the arc-shaped end of the side wall portion 71; and a flange portion 73, which extends outward in the radial direction from the radially outer end of the peripheral wall portion 72.

[0050] The front part of the lower end of the side wall portion 71 overlaps with the outer side of the flange portion formed at the outer end of the upper reinforcing member 4 in the width direction, and is joined to the upper reinforcing member 4 by welding or the like.

[0051] <Shock absorber mount>

[0052] like Figure 3 As shown, the shock absorber mount 5 is disposed in the space outside the vehicle formed by the side wall portion 71 and the peripheral wall portion 72 of the rear wheel cover 70, and is a curved plate-shaped component that supports the upper end of the suspension shock absorber (not shown) that suspends the wheel in this space. The shock absorber mount 5 is joined to the lower surface of the upper end of the peripheral wall portion 72 of the rear wheel cover 70 and the outer surface of the side wall portion 71 in the vehicle width direction by welding or the like.

[0053] <Upper Reinforcing Component for Wheel Cover>

[0054] like Figure 1 As shown, the upper wheel arch reinforcement member 80 is a member that reinforces the upper part of the rear wheel arch 70 by cooperating with the upper part (peripheral wall part 72) of the rear wheel arch 70 to form a rectangular closed cross section. Figure 2 As shown, the upper wheel cover reinforcement member 80 integrally includes an upper wall portion 81, a front wall portion 82 extending downward from the front end of the upper wall portion 81, and a front flange portion 83 extending forward from the lower end of the front wall portion 82. Additionally, the upper wheel cover reinforcement member 80 integrally includes a rear wall portion 84 extending downward from the rear end of the upper wall portion 81 and a rear flange portion 85 extending rearward from the lower end of the rear wall portion 84.

[0055] The front flange portion 83 and the rear flange portion 85 overlap with the upper side of the peripheral wall portion 72 and are joined to the peripheral wall portion 72 by welding or the like.

[0056] <Wheel cover side reinforcement component>

[0057] like Figure 1 As shown, the wheel arch side reinforcement member 90 is a member that reinforces the side of the rear wheel arch 70 by cooperating with the side wall portion 71 of the rear wheel arch 70 to form a rectangular closed cross section. Figure 2 As shown, the wheel arch side reinforcement member 90 integrally includes an inner wall portion 91, a front wall portion 92 extending outward in the vehicle width direction from the front end of the inner wall portion 91, and a front flange portion 93 extending forward from the outer end of the front wall portion 92 in the vehicle width direction. Additionally, the wheel arch side reinforcement member 90 integrally includes a rear wall portion 94 extending outward in the vehicle width direction from the rear end of the inner wall portion 91, and a rear flange portion 95 extending rearward from the outer end of the rear wall portion 94 in the vehicle width direction.

[0058] The front flange portion 93 and the rear flange portion 95 overlap with the inner side of the side wall portion 71 in the vehicle width direction and are joined to the side wall portion 71 by welding or the like.

[0059] <Connecting Components>

[0060] like Figure 1 As shown, the connecting component 6 is a component that connects the end of the rear crossbeam 60 in the vehicle width direction to the lower end of the wheel cover side reinforcement component 90.

[0061] A continuous closed section is formed by the closed section consisting of the base plate 2 and the rear crossbeam 60, the closed section consisting of the base plate 2, the connecting component 6, the upper reinforcing component 4 and the rear wheel cover 70, and the closed section consisting of the wheel cover side reinforcing component 90 and the rear wheel cover 70.

[0062] <Column>

[0063] like Figure 1 As shown, pillar 8 is a rectangular closed-section member extending vertically between the rear wheel arch 70 and the roof panel (not shown) constituting the vehicle roof. Pillar 8 is formed by combining an inner pillar member 140 constituting the interior of pillar 8 in the vehicle width direction and an outer pillar member (a panel constituting the side panel of the vehicle body, not shown) constituting the exterior of pillar 8 in the vehicle width direction.

[0064] Internal Column Components

[0065] The pillar inner member 140 integrally includes an inner wall portion 141 and a lower flange portion 142 extending inward in the vehicle width direction from the lower end of the inner wall portion 141. Additionally, the pillar inner member 140 integrally includes a front wall portion 143 extending outward in the vehicle width direction from the front end of the inner wall portion 141 and a front flange portion 144 extending forward from the outer end of the front wall portion 143 in the vehicle width direction. Furthermore, the pillar inner member 140 integrally includes a rear wall portion 145 extending outward in the vehicle width direction from the rear end of the inner wall portion 141 and a rear flange portion 146 extending rearward from the outer end of the rear wall portion 145 in the vehicle width direction.

[0066] The lower flange 142 overlaps with the upper side of the peripheral wall 72 of the rear wheel arch 70 and the upper side of the upper wall 81 of the upper wheel arch reinforcement member 80, and is joined to the peripheral wall 72 and the upper wall 81 respectively by welding or the like. The front flange 144 overlaps with the inner side of the pillar outer member in the vehicle width direction and is joined to the pillar outer member by welding or the like. The rear flange 146 overlaps with the inner side of the pillar outer member in the vehicle width direction and is joined to the pillar outer member by welding or the like.

[0067] <Retractor>

[0068] like Figure 2 and Figure 3 As shown, the retractor 150 is a seatbelt winding device for winding, receiving, or pulling out the seatbelt SB for the rear seat. The retractor 150 has a resin or metal frame portion that houses the seatbelt SB with its end side wound around a roller. In the frame portion of the retractor 150, the upper wall portion 151, having an opening for the seatbelt SB to pass through, is inclined downwards as it moves forward. Additionally, in the frame portion of the retractor 150, the rear wall portion 152 is inclined downwards as it moves rearwards. This rear wall portion 152 forms a retractor-side mounting surface for mounting the rear support 170.

[0069] <Front Support>

[0070] The front support 160 is a resin or metal plate-shaped component installed between the retractor 150 and the pillar 8 to support the retractor 150 to the vehicle body. The front support 160 integrally includes a rear section 161 that faces upward as it moves forward, a front section 162 that faces downward as it moves forward from the front end of the rear section 161, and an extension 163 that extends upward from the outer end of the front end of the front section 162 in the vehicle width direction.

[0071] The rear end of the rear section 161 is fixed to the rear wall 152 of the retractor 150 by bolts or the like. A hole for the seat belt SB to pass through is formed in the front section 162. The extension 163 is fixed to the inner wall 141 of the column inner member 140 by bolts or the like.

[0072] <Rear Support>

[0073] The rear support 170 is a long, plate-shaped component made of resin or metal, installed between the retractor 150 and the bracket 180 to support the retractor 150 to the vehicle body. The front end of the rear support 170 is fixed to the rear wall 152 of the retractor 150 by bolts or the like. The rear end of the rear support 170 is fixed to the sloping wall 182 of the bracket 180 by bolts or the like. Both edges of the rear support 170 in the vehicle width direction are straight when viewed from above and from the side.

[0074] <Bracket>

[0075] The bracket 180 is a metal base component spanning the rear wheel arch 70 and the upper wheel arch reinforcement 80 to support the retractor 150 to the vehicle body. For example... Figure 4 As shown, the bracket 180 integrally includes an upper wall portion 181, an inclined wall portion 182 extending obliquely downward from the rear end of the upper wall portion 181, and a rear wall portion 183 extending downward from the rear end of the inclined wall portion 182. Furthermore, the bracket 180 integrally includes an inner wall portion 184 extending downward from the inner ends of the upper wall portion 181, the inclined wall portion 182, and the rear wall portion 183 in the vehicle width direction, and an outer wall portion 185 extending downward from the outer ends of the upper wall portion 181, the inclined wall portion 182, and the rear wall portion 183 in the vehicle width direction. Additionally, the bracket 180 integrally includes a flange portion 186 formed to surround the aforementioned portions.

[0076] In this embodiment, the bracket 180 is coupled to the upper reinforcing member 80 of the wheel cover at its front end, and the rear support 170 is installed and coupled to the rear wheel cover 70 at the other parts except the front end. That is, the front end of the bracket 180 has the first mating surface B1 and the third mating surface B3 described later, and the other parts of the bracket 180 have the mounting surface A1 and the second mating surface B2 described later.

[0077] The inclined wall portion 182 is a mounting surface A1 for mounting the rear end of the rear support 170. The mounting surface A1 is set at approximately the same angle as the rear wall portion 152, which serves as the retractor-side mounting surface, and is positioned approximately in the same straight line L as the rear wall portion 152 when viewed from the side (see reference). Figure 3 )superior.

[0078] The edges C1 and C2, which form the two edges of the inclined wall portion 182 in the vehicle width direction, are straight lines when viewed from both top and side. These edges C1 and C2 extend in the same direction as the rear support 170 (the direction connecting the rear wall portion 152 of the retractor 150 to the mounting surface A1). The width dimension of the mounting surface A1 (the interval between the inner wall portion 184 and the outer wall portion 185) is approximately the same as the width dimension of the rear support 170. With this configuration, the edges C1 and C2 of the mounting surface A1 in the vehicle width direction can be aligned with the width edge of the rear support 170, thus suppressing deformation of the mounting surface A1 caused by loads input from the retractor 150 via the rear support 170 to the mounting surface A1.

[0079] The flange portion 186 is a continuous surface formed around the entire circumference of the bracket 180, surrounding the mounting surface A1, and is a mating surface that engages with the upper wheel cover reinforcement member 80 and the rear wheel cover 70. This mating surface is joined to the upper wheel cover reinforcement member 80 and the rear wheel cover 70 by welding or the like.

[0080] The front end of the flange portion 186 is a portion that extends forward from the upper wall portion 181 and is the first mating surface B1 that engages with the upper wall portion 81 of the upper reinforcing member 80 of the wheel cover.

[0081] The rear part of the flange 186 is a second mating surface B2 that engages with the peripheral wall 72 of the rear wheel cover 70. The second mating surface B2 also engages with the shock absorber seat 5 via the rear wheel cover 70 (3-piece joint).

[0082] At the midpoint of the flange portion 186 in the front-rear direction, the portion behind the first mating surface B1 is the third mating surface B3, which is mated with the rear wall portion 84 of the upper reinforcing member 80 of the wheel cover.

[0083] At the midpoint of the flange portion 186 in the front-rear direction, the portion between the third mating surface B3 and the second mating surface B2 is mated with the rear flange portion 85 of the upper reinforcing member 80 of the wheel cover.

[0084] In the bracket 180, ridges C3 and C4 are formed between the mounting surface A1 and the first mating surface B1 and the third mating surface B3, connecting them. Additionally, ridges C5 and C6 are formed between the first mating surface B1 and the third mating surface B3. Ridge C3 is the boundary between the upper wall portion 181 and the inner wall portion 184, and appears as a straight line in both top and side views. Ridge C4 is the boundary between the upper wall portion 181 and the outer wall portion 185, and also appears as a straight line in both top and side views. Ridges C5 and C6 overlap with the ridges formed between the upper wall portion 81 and the rear wall portion 84 of the upper reinforcing member 80 of the wheel cover.

[0085] Ridges C3 and C4 transfer the load input from the retractor 150 to the mounting surface A1 via the rear support 170 to the upper wheel arch reinforcement 80 via the first mating surface B1 and the third mating surface B3. That is, ridges C3 and C4 contribute to the weight reduction of the bracket 180 by distributing the load input to the mounting surface A1 to the upper wheel arch reinforcement 80. Furthermore, ridges C3 and C4 transfer the load input from the retractor 150 to the mounting surface A1 via the rear support 170 to the ridge formed between the upper wall portion 81 and the rear wall portion 84 of the upper wheel arch reinforcement 80 via the first mating surface B1 and the third mating surface B3. That is, ridges C3 and C4 contribute to the firm support of the retractor 150 by transferring the load input to the mounting surface A1 to the ridge of the upper wheel arch reinforcement 80.

[0086] In bracket 180, ridges C7 and C8 are formed between mounting surface A1 and second mating surface B2, connecting the two. Ridge C7 is the boundary between rear wall portion 183 and inner wall portion 184, and appears as a straight line when viewed from above or the side. Ridge C8 is the boundary between rear wall portion 183 and outer wall portion 185, and appears as a straight line when viewed from above or the side.

[0087] Ribs C7 and C8 transfer the load input from the retractor 150 to the mounting surface A1 via the rear support 170 to the rear wheel arch 70 via the second mating surface B2. That is, ribs C7 and C8 contribute to the weight reduction of the bracket 180 by distributing the load input to the mounting surface A1 to the rear wheel arch 70.

[0088] The rear structure 1 of the vehicle body according to an embodiment of the present invention includes: a rear wheel cover 70; a rear crossbeam 60, which extends along the vehicle width direction inside the lower part of the rear wheel cover 70; a pillar 8, which extends upward from the upper part of the rear wheel cover 70; a wheel cover reinforcement member, which is disposed along the rear wheel cover 70 and connects the rear crossbeam 60 to the pillar 8; a retractor 150, which is a seat belt winding device; and a bracket 180, which is used to fix the retractor 150 to the vehicle body, one end of the bracket 180 is combined with the wheel cover reinforcement member, and the other part of the bracket 180 extends from the one end toward the front or rear of the vehicle body and is combined with the rear wheel cover 70.

[0089] Therefore, compared with the structure in which the retractor 150 is directly mounted on the wheel cover reinforcement component, the rear structure 1 of the vehicle body can improve the design freedom of the retractor 150 in terms of configuration and installation angle.

[0090] In addition, since one end of the bracket 180 is combined with the wheel cover reinforcement member, the load transmitted from the retractor 150 to the bracket 180 can be distributed from the wheel cover reinforcement member to the rear crossbeam 60 and the pillar 8. This can adequately ensure the installation strength of the retractor 150, suppress the weight of the wheel cover reinforcement member, and achieve weight reduction.

[0091] Additionally, the rear structure 1 of the vehicle body has a shock absorber seat 5 disposed on the outer side of the rear wheel cover 70, and other parts of the bracket 180 are connected to the shock absorber seat 5 by means of the rear wheel cover 70.

[0092] Therefore, the rear structure 1 of the vehicle body can also distribute the load transmitted from the retractor 150 to the bracket 180 to the shock absorber seat 5, thereby achieving the weight reduction of the bracket 180.

[0093] Additionally, the rear structure 1 of the vehicle body has a support that connects the bracket 180 and the retractor 150. The mounting surface A1, which is provided on other parts of the bracket 180 and is used for mounting the support, is positioned on approximately the same straight line as the retractor-side mounting surface when viewed from the side. The retractor-side mounting surface is provided on the retractor 150 and is used for mounting the support.

[0094] Therefore, the rear structure 1 of the vehicle body can properly prevent deformation of the mounting surface A1 of the bracket 180 caused by the load transmitted from the retractor 150 to the bracket 180.

[0095] Additionally, in the rear structure 1 of the vehicle body, the bracket 180 includes a first mating surface B1 disposed at one end and combined with the wheel cover reinforcement member, and a second mating surface B2 disposed at the other part and combined with the rear wheel cover. Straight ridges C3, C4, C7, and C8 are formed between the mounting surface A1 and the first mating surface B1 and / or the second mating surface B2.

[0096] Therefore, the rear structure 1 of the vehicle body can appropriately distribute the load transmitted from the retractor 150 to the bracket 180 to the wheel cover reinforcement and the rear wheel cover 70, thereby achieving the weight reduction of the bracket 180.

[0097] In addition, in the rear structure 1 of the vehicle body, the wheel cover reinforcement member includes a side wall portion extending upward from the rear wheel cover and an upper wall portion extending forward or backward from the upper end of the side wall portion. One end of the bracket 180 includes a first mating surface B1 that engages with the upper wall portion and a third mating surface B3 that engages with the side wall portion.

[0098] Therefore, the rear structure 1 of the vehicle body can appropriately distribute the load transmitted from the retractor 150 to the bracket 180 to the ridge of the wheel cover reinforcement member, thereby improving the support performance of the retractor 150 based on the bracket 180.

[0099] Additionally, in the rear structure 1 of the vehicle body, the bracket 180 has a mating surface that engages with the wheel cover reinforcement member and the rear wheel cover 70. This mating surface is formed by the first mating surface B1, the second mating surface B2 and the third mating surface B3, and is a continuous surface that surrounds the entire circumference of the mounting surface A1.

[0100] Therefore, the rear structure 1 of the vehicle body can distribute the load transmitted from the retractor 150 to the bracket 180 in all directions over a wide range, thereby enabling the bracket 180 to be lightweight.

[0101] In addition, in the rear structure 1 of the vehicle body, the width dimension of the mounting surface A1 is approximately the same as the width dimension of the support.

[0102] Therefore, the rear structure 1 of the vehicle body can suppress the deformation of the mounting surface A1 caused by the load transmitted from the retractor 150 to the bracket 180.

[0103] In addition, in the rear structure 1 of the vehicle body, straight ridges C1 and C2 extending along the extension direction of the support are formed on the two edges of the mounting surface A1 in the vehicle width direction.

[0104] Therefore, the rear structure 1 of the vehicle body can suppress the deformation of the mounting surface A1 caused by the load transmitted from the retractor 150 to the bracket 180.

[0105] The embodiments of the present invention have been described above, but the present invention is not limited to the foregoing embodiments and can be appropriately modified without departing from the spirit of the present invention. For example, the bracket 180 may also be configured such that its rear end is combined with the upper reinforcing member 80 of the wheel cover, and the other parts of the front end are combined with the rear wheel cover 70.

Claims

1. A rear structure of a vehicle body, characterized in that, include: Rear wheel cover; The rear crossbeam extends along the vehicle width direction on the inner side of the lower part of the rear wheel arch. A pillar is provided that extends upward from the upper part of the rear wheel cover; A wheel arch reinforcement component is provided along the rear wheel arch and connects the rear crossbeam to the post; A retractor, which is a seatbelt winding device; A bracket for securing the retractor to the vehicle body; as well as A support, which is erected between the retractor and the bracket and supports the retractor. One end of the bracket has a first mating surface that engages with the wheel cover reinforcement component. The other portions of the bracket extending from one end toward the front or rear of the vehicle body have a mounting surface for the support installation and a second mating surface for engaging with the rear wheel arch.

2. The rear structure of the vehicle body according to claim 1, characterized in that, Equipped with shock absorber mounts located on the outer side of the rear wheel arch. The other parts of the bracket are connected to the shock absorber mount via the rear wheel cover.

3. The rear vehicle body structure according to claim 1 or 2, characterized in that, The mounting surface, which is located on the other part of the bracket and is used for the support mounting, is positioned on approximately the same straight line as the retractor-side mounting surface when viewed from the side, wherein the retractor-side mounting surface is located on the retractor and is used for the support mounting.

4. The rear vehicle body structure according to claim 3, characterized in that, The bracket has a straight ridge between the mounting surface and the first mating surface and / or the second mating surface.

5. The rear vehicle body structure according to claim 4, characterized in that, The wheel cover reinforcement component includes: A sidewall portion, which extends upward from the rear wheel arch; and The upper wall portion extends from the upper end of the side wall portion toward the front or rear of the vehicle. One end of the bracket has a first mating surface that engages with the upper wall portion and a third mating surface that engages with the side wall portion.

6. The rear vehicle body structure according to claim 5, characterized in that, The bracket has mating surfaces that engage with the wheel cover reinforcement member and the rear wheel cover, the mating surfaces comprising a first mating surface, a second mating surface, and a third mating surface. The mating surface is a continuous surface formed in a manner that surrounds the entire circumference of the mounting surface.

7. The rear vehicle body structure according to claim 3, characterized in that, The width dimension of the mounting surface is approximately the same as the width dimension of the support.

8. The rear structure of the vehicle body according to claim 3, characterized in that, Straight ridges extending along the extension direction of the support are formed on both edges of the mounting surface in the vehicle width direction.

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