Vehicle body rear structure

Abstract

Provided is a vehicle body rear structure that can ensure rigidity of a rear inner panel and suppress vibration of the rear inner panel and noise caused by the vibration. The vehicle body rear structure includes a rear inner panel (8) that constitutes a part of an opening portion provided at a rear portion (2) of a vehicle body (1) and is joined to a rear pillar (6). The rear inner panel (8) includes a skeleton portion (11) that extends in a front-rear direction of the vehicle body (1). The skeleton portion (14) is formed so that a cross-sectional shape when cut perpendicularly to a longitudinal direction of the skeleton portion (11) is convex toward a vehicle width direction.

Description

Technical Field

[0001] This invention relates to a rear structure of a vehicle body, and more specifically, to a rear structure of a vehicle body including a rear inner panel. Background Technology

[0002] As a structure at the rear of a vehicle body (rear body structure), there is a structure in which a rear inner panel forming the side of the vehicle body is disposed between the center pillar of the vehicle body and the rear wheel arch. As such a rear body structure, for example, the technology disclosed in Patent Document 1 is known.

[0003] The rear vehicle structure disclosed in Patent Document 1 (hereinafter referred to as "conventional technology" in this specification) has a center pillar positioned at a predetermined interval in front of the rear wheel arch, and a side opening is formed in the rear inner panel between the center pillar and the rear wheel arch (refer to Patent Document 1). Figure 3 Additionally, the side openings are designed to reduce the weight of the rear inner panel, thus achieving a lighter vehicle body.

[0004] At the side opening, a mounting bracket is installed on the rear inner panel in a manner that cuts across the side opening, and a speaker is mounted on the mounting bracket (see Patent Document 1). Figure 3 ).

[0005] [Existing technical documents]

[0006] [Patent Literature]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 2009-190548 Summary of the Invention

[0008] [The problem the invention aims to solve]

[0009] Furthermore, in the aforementioned prior art, if the rear inner panel is enlarged to ensure its rigidity, for example, by extending it to the rear of the vehicle body, the rear inner panel is prone to vibration.

[0010] Therefore, in the prior art, as described above, vibration of the rear inner plate is easily generated, thus making it difficult to suppress the noise caused by the vibration.

[0011] The present invention was made in view of the above circumstances, and aims to provide a rear body structure that can both ensure the rigidity of the rear inner panel and suppress the vibration of the rear inner panel and the noise caused by the vibration, thereby improving the safety of traffic by means of the vehicle and suppressing the decline in traffic flow.

[0012] [Technical means to solve the problem]

[0013] The first invention of this application is a rear body structure, including a rear inner panel forming part of a rear wheel arch, the rear inner panel constituting part of an opening at the rear of the vehicle body and engaging with a rear pillar extending in the vertical direction of the vehicle body, the rear body structure being characterized in that the rear inner panel includes a skeleton portion extending in the longitudinal direction of the vehicle body.

[0014] In the second invention of this application, the skeleton portion is formed such that when cut orthogonally to the long side direction of the skeleton portion, the cross-sectional shape protrudes in the vehicle width direction.

[0015] In the third invention of this application, a window portion is formed by the vehicle body and the rear inner panel on the side of the rear part of the vehicle body, and the frame portion extends along the lower end of the window portion in the front-rear direction of the vehicle body.

[0016] In the fourth invention of this application, the skeleton portion is formed such that the cross-sectional depth of the skeleton portion increases as it is cut along the long side direction of the middle portion toward the middle portion of the skeleton portion.

[0017] In the fifth invention of this application, an outer wheel cover component constituting the outer side of the rear wheel cover in the vehicle width direction is integrally formed on the rear inner panel. The rear wheel cover includes an inner wheel cover component constituting the inner side of the rear wheel cover in the vehicle width direction. The lower end of a side beam pillar extending in the vertical direction of the vehicle body is connected to the upper end of the inner wheel cover component. The side beam pillar is arranged at a predetermined interval from the rear pillar in the longitudinal direction of the vehicle body. The frame portion extends from the side beam pillar to the rear pillar.

[0018] In the sixth invention of this application, the rear inner plate includes a plurality of openings and a plurality of load-transfer portions formed around each of the openings.

[0019] In the seventh invention of this application, the load transfer part includes a first load transfer part, which extends from the upper end and lower end of the rear wheel cover toward the middle part of the long side of the rear pillar.

[0020] In the eighth invention of this application, the load transfer portion includes a pair of second load transfer portions, one of which extends from the upper end of the rear wheel arch to the upper end of the rear pillar, and the other of which extends from the lower end of the rear wheel arch to the lower end of the rear pillar.

[0021] In the ninth invention of this application, the load transfer part includes a third load transfer part, which is formed along the long side of the rear column and connects the first load transfer part and the second load transfer part.

[0022] [The effects of the invention]

[0023] According to the first invention of this application, the rear inner panel, which is disposed from the rear wheel arch to the rear pillar, includes a skeleton extending in the longitudinal direction of the vehicle body. This suppresses deformation of the membrane surface of the rear inner panel and reduces vibration of the rear inner panel and noise generated by such vibration. Furthermore, the skeleton enables load transfer between the rear wheel arch and the rear pillar, thereby improving the rigidity of the rear inner panel.

[0024] Therefore, it achieves the following effects: it can both ensure the rigidity of the rear inner panel and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0025] According to the second invention of this application, the cross-sectional shape of the frame portion when cut orthogonally to the long side direction is formed to bulge in the vehicle width direction. Therefore, deformation of the rear inner panel membrane can be suppressed without the need for reinforcing members such as brackets. Consequently, vibration of the rear inner panel and noise caused by such vibration can be suppressed without the need for reinforcing members such as brackets. Furthermore, the frame portion enables load transfer between the rear wheel arch and the rear pillar, thus improving the rigidity of the rear inner panel.

[0026] Therefore, it achieves the following effects: it can both ensure the rigidity of the rear inner panel and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0027] According to the third invention of this application, a frame portion extends along the lower end of the window portion in the longitudinal direction of the vehicle body. Therefore, the frame portion extends along the lower end of the window portion, thereby improving the rigidity of the window portion periphery, which becomes an opening, and thus effectively suppressing the deformation of the membrane surface of the rear inner panel.

[0028] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0029] According to the fourth invention of this application, the section depth when the frame portion is cut along the long side direction in the vehicle width direction is formed such that it increases towards the middle portion of the long side direction of the frame portion. Therefore, the load input to the rear inner panel can be efficiently transferred to the frame portion, thereby further improving the rigidity of the rear inner panel. As a result, the membrane deformation of the rear inner panel can be further suppressed, and the vibration of the rear inner panel and the generation of noise caused by the vibration can be suppressed.

[0030] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0031] According to the fifth invention of this application, the frame connects the side beams and the rear column, thus enabling the load input to the rear inner plate to be transferred to the side beams and the rear column via the frame, thereby improving the rigidity of the rear inner plate. As a result, it is more effective in suppressing membrane deformation of the rear inner plate and suppressing vibration of the rear inner plate and the generation of noise caused by said vibration.

[0032] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0033] According to the sixth invention of this application, a load transfer section is included around each of the plurality of openings provided on the rear inner panel, thereby reducing the weight of the rear inner panel and transferring the input load through the load transfer section.

[0034] The result is that it achieves the following effect: it can ensure the rigidity of the rear inner panel and also make the rear inner panel lightweight.

[0035] According to the seventh invention of this application, a first load-transfer portion extending from the upper and lower ends of the rear wheel arch toward the middle portion of the long side of the rear pillar is included. Therefore, the load input to the rear inner panel can be efficiently transferred, thereby improving the rigidity of the rear inner panel. As a result, it is more effective in suppressing membrane deformation of the rear inner panel and suppressing vibration of the rear inner panel and the generation of noise caused by said vibration.

[0036] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0037] According to the eighth invention of this application, a second load-transfer portion extends from the upper and lower ends of the rear wheel arch to the upper and lower ends of the rear pillar, respectively. This allows for efficient transmission of the load input to the rear inner panel, thereby improving the rigidity of the rear inner panel. As a result, it further suppresses membrane deformation of the rear inner panel and reduces vibration of the rear inner panel and the generation of noise caused by said vibration.

[0038] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration.

[0039] According to the ninth invention of this application, a third load transfer section is included, connecting the first load transfer section and the second load transfer section. This allows for the transfer of not only loads input in the longitudinal direction of the vehicle body, but also loads input to the first and second load transfer sections in the vertical direction of the vehicle body. As a result, deformation of the first and second load transfer sections can be suppressed.

[0040] Therefore, it achieves the following effects: it can better ensure the rigidity of the rear inner panel, and suppress the vibration of the rear inner panel and the noise caused by the vibration. Attached Figure Description

[0041] Figure 1 This is a diagram showing the structure of the rear part of the vehicle body according to an embodiment of the present invention, and a front view showing the state of the rear part of the vehicle body as viewed from the rear.

[0042] Figure 2 It is a side view showing the rear of the vehicle as seen from the outside in the width direction.

[0043] Figure 3 It is a side view showing the rear of the vehicle as seen from the inside in the width direction.

[0044] Figure 4 It means Figure 2 The diagram shows a side view of the rear inner panel.

[0045] Figure 5 It means in Figure 3 A three-dimensional view of the state of the inner rear panel when the rear of the vehicle body is cut off at the AA section, viewed from the inside in the vehicle width direction.

[0046] Figure 6 It is Figure 5 An enlarged perspective view of the area near the skeleton section of the rear inner panel shown in the figure.

[0047] Figure 7 This is a diagram used to illustrate the shape of the inner surface of the outer wall of the skeleton section, and it represents... Figure 3 A diagram of the cross-section of the BB arrow.

[0048] Figure 8 It is a diagram used to illustrate load transfer via the first load transfer unit, the second load transfer unit, and the third load transfer unit, and is a side view showing the state of the rear of the vehicle body as viewed from the inside in the vehicle width direction.

[0049] [Explanation of Symbols]

[0050] 1: Body

[0051] 2: Rear

[0052] 3: Side beam

[0053] 4: Roof longitudinal beams

[0054] 5: Side beams and columns

[0055] 6: Rear pillar

[0056] 7: Inside the carriage

[0057] 8: Rear inner panel

[0058] 9: Body part

[0059] 10: Window

[0060] 11: Rear wheel cover

[0061] 12: Wheel cover outer parts

[0062] 13: Wheel arch internals

[0063] 14: Skeletal Part

[0064] 15, 16, 17: Openings

[0065] 18: Load Transmission Section

[0066] 19: Working Hole

[0067] 20: Inner surface

[0068] 21: Outer wall

[0069] 22: Up the wall

[0070] 23: Lower wall

[0071] 24: Inner surface

[0072] 25: First inclined surface

[0073] 26: Step difference

[0074] 27: Second inclined surface

[0075] 28: First load transfer section

[0076] 29: Second load transfer section

[0077] 30: Third load transfer unit

[0078] 31, 33: Upper end

[0079] 32, 34: Lower end

[0080] 50: Opening Detailed Implementation

[0081] The following is a reference. Figures 1 to 8 The following describes an embodiment of the rear structure of the vehicle body according to the present invention.

[0082] Figure 1 This is a diagram showing the structure of the rear part of the vehicle body according to one embodiment of the present invention, and is a front view showing the rear part of the vehicle body as viewed from the rear. Figure 2 It is a side view showing the rear of the vehicle as seen from the outside in the width direction. Figure 3 It is a side view showing the rear of the vehicle as seen from the inside in the width direction. Figure 4 It means Figure 2 The diagram shows a side view of the rear inner panel. Figure 5 It means in Figure 3 A three-dimensional view of the rear inner panel as observed from the inside in the vehicle width direction when the rear of the vehicle body is cut off at section AA. Figure 6 It is Figure 5 The diagram shows an enlarged perspective view of the area near the skeleton section of the rear inner panel. Figure 7 This is a diagram used to illustrate the shape of the inner surface of the outer wall of the skeleton section, and it represents... Figure 3 A diagram of the cross-section of the BB arrow. Figure 8 It is a diagram used to illustrate load transfer via the first load transfer unit, the second load transfer unit, and the third load transfer unit, and is a side view showing the state of the rear of the vehicle body as viewed from the inside in the vehicle width direction.

[0083] In addition, the arrows in the diagram represent the up-down, left-right, and front-back directions (the direction of the arrows is set as an example).

[0084] In this embodiment, the rear structure of the vehicle body of the present invention is applied as a component in a vehicle. Figure 1 The structure of the rear part 2 of the vehicle body 1 shown in the figure will be explained.

[0085] in addition, Figure 2 In the diagram, reference symbol 3 represents "side beam", reference symbol 4 represents "roof longitudinal beam", reference symbol 5 represents "side beam pillar", and reference symbol 6 represents "rear pillar". Figure 1 In the text, the reference symbol 7 indicates "inside the carriage".

[0086] Here, the side beam column 5 and the rear column 6 are respectively as follows: Figure 2 as well as Figure 3 As shown, the rear part 2 of the vehicle body 1 is arranged at a predetermined interval in the front-rear direction of the vehicle body 1 and is formed in a manner that extends along the vertical direction of the vehicle body 1.

[0087] like Figures 1 to 3 As shown, the rear portion 2 of the vehicle body 1 includes a rear inner panel 8 on its side. The rear inner panel 8 is a side wall constituting the rear portion 2 of the vehicle body 1, and forms the opening 50 (see reference) provided in the rear portion 2 of the vehicle body 1. Figure 1 It is a component of the structure. The rear inner plate 8 is provided across the side beam column 5 and the rear column 6, and is joined to the side beam column 5 and the rear column 6.

[0088] By arranging the rear inner panel 8 as described above, a window portion 10 is formed on the side of the rear part 2 of the vehicle body 1 by the roof longitudinal beam 4, side pillar 5, and rear pillar 6 of the vehicle body 1 and the upper end of the rear inner panel 8. Although not specifically illustrated, the window portion 10 is fitted with glass.

[0089] Figures 1 to 4The illustrated rear inner panel 8 includes a body portion 9 and a wheel cover outer member 12, which are continuously and integrally formed with the body portion 9. The body portion 9 has a frame portion 14, an opening portion 15, an opening portion 16, an opening portion 17, and a load transmission portion 18. Hereinafter, the structures of the rear inner panel 8 of this embodiment will be described.

[0090] First, the outer part of the wheel cover 12 will be explained.

[0091] like Figures 1 to 3 As shown, the wheel arch outer member 12 is formed as the outer part of the rear wheel arch 11 in the vehicle width direction. The wheel arch outer member 12 has a working hole 19 (see reference) for the operator to insert their hand during assembly work on the vehicle body 1. Figure 2 as well as Figure 4 ).

[0092] like Figure 1 as well as Figure 2 As illustrated, the rear wheel arch 11 includes a wheel arch inner member 13 forming the inner side of the rear wheel arch 11 in the vehicle width direction. The lower end of the side beam pillar 5 is connected to the upper end of the wheel arch inner member 13.

[0093] Next, the skeleton part 14 will be explained.

[0094] Figures 2 to 4 The illustrated frame portion 14 is located at the upper end of the rear inner panel 8 and extends from the side pillar 5 to the rear pillar 6 along the front-rear direction of the vehicle body 1.

[0095] As described above, the skeleton portion 14 is configured to be formed on the rear inner plate 8, therefore, as Figure 2 as well as Figure 3 As shown in the figure, it extends along the lower end of the window portion 10 in the front-rear direction of the vehicle body 1.

[0096] like Figure 2 as well as Figure 4 As illustrated, the skeleton portion 14 is formed to protrude outward from the body portion 9 in the vehicle width direction. Figure 5 as well as Figure 6 As illustrated, in this embodiment, the skeleton portion 14 is formed such that when cut perpendicular to the long side direction, the cross-sectional shape protrudes outward in the vehicle width direction (approximately U-shaped).

[0097] like Figure 5 as well as Figure 6As illustrated, the frame portion 14 includes an outer wall 21, an upper wall 22, and a lower wall 23. The outer wall 21 is formed as the outermost wall portion in the vehicle width direction of the frame portion 14. The upper wall 22 is formed such that one end is continuous with the upper end of the outer wall 21, and the other end extends inward in the vehicle width direction and is continuous with the body portion 9. The lower wall 23 is formed such that one end is continuous with the lower end of the outer wall 21, and the other end extends inward in the vehicle width direction and is continuous with the body portion 9.

[0098] When the skeleton portion 14 is cut along the long side direction in the vehicle width direction, and the distance between the inner surface 20 of the body portion 9 and the inner surface 24 of the outer wall 21 of the skeleton portion 14 is defined as the "section depth" (or "section height") of the skeleton portion 14, the section depth (or section height) of the skeleton portion 14 increases as it moves from one end of the long side direction of the skeleton portion 14 and the other end toward the middle of the long side direction of the skeleton portion 14.

[0099] In this embodiment, such as Figure 7 As shown in the figure, the inner surface 24 of the outer wall 21 is formed such that it gradually slopes outward in the vehicle width direction toward the middle part of the long side of the frame part 14, moving away from the body part 9.

[0100] More specifically, such as Figure 7 As shown in the figure, the inner surface 24 of the outer wall 21 includes a first inclined surface 25, a step 26, and a second inclined surface 27. The first inclined surface 25 is formed such that it gradually slopes outward in the vehicle width direction from one end and the other end of the long side direction of the frame portion 14 toward the middle part of the long side direction of the frame portion 14, moving away from the body portion 9.

[0101] The second inclined surface 27 is formed by a step 26, and is formed such that it gradually moves away from the body part 9 toward the middle part of the long side of the frame part 14 and toward the outside of the vehicle width direction. The step 26 is continuous with the first inclined surface 25 and is much more inclined toward the outside of the vehicle width direction than the first inclined surface 25.

[0102] Next, we will explain openings 15, 16, and 17.

[0103] Openings 15, 16, and 17 are formed to reduce the weight of the rear inner panel 8, achieving lightweight construction, and are configured to be surrounded by the load-transfer portion 18, as described later. Figures 2 to 4 As shown in the figure, openings 15, 16, and 17 are formed on the body portion 9 of the rear inner panel 8 in a manner arranged along the vertical direction of the vehicle body 1.

[0104] Next, the load transfer unit 18 will be described.

[0105] As described below, the load transfer section 18 includes a plurality of load transfer sections (three in this embodiment) and is formed around each of the openings 15, 16, and 17. The load transfer section 18 is as follows... Figures 2 to 4 As shown in the figure, it includes a first load transfer unit 28, a second load transfer unit 29, and a third load transfer unit 30.

[0106] In this embodiment, a pair (two) of first load transfer units 28 are formed. Figure 2 as well as Figure 3 As shown in the figure, one first load transfer part 28 extends from the upper end 31 of the rear wheel arch 11 and the other first load transfer part 28 extends from the lower end 32 of the rear wheel arch 11 toward the middle part of the long side (vertical direction) of the rear pillar 6.

[0107] In this embodiment, a pair (two) of second load transfer units 29 are formed. Figure 2 as well as Figure 3 As illustrated, one of the second load transfer sections 29 extends from the upper end 31 of the rear wheel arch 11 to the upper end 33 of the rear pillar 6 (see Figure 1). Figure 3 Another second load transfer section 29 extends from the lower end 32 of the rear wheel arch 11 to the lower end 34 of the rear pillar 6 (see reference). Figure 3 ).

[0108] In this embodiment, a pair (two) of third load transfer units 30 are formed. Figure 2 as well as Figure 3 As shown in the figure, the third load transfer section 30 is formed along the long side of the rear column 6, and is configured to connect the first load transfer section 28 and the second load transfer section 29 in the vertical direction.

[0109] The first load transfer section 28, the second load transfer section 29, and the third load transfer section 30 are formed as described above. Therefore, the first load transfer section 28, the second load transfer section 29, and the third load transfer section 30 are formed around the opening 15. A pair of first load transfer sections 28 are formed around the opening 16, and the first load transfer section 28, the second load transfer section 29, and the third load transfer section 30 are formed around the opening 17.

[0110] The first load transfer unit 28 and the second load transfer unit 29 described above are configured to transfer the load input to the rear inner panel 8 in the longitudinal direction of the vehicle body 1 to the side of the vehicle body 1 (see reference). Figure 8 (Arrows F1, F2, F3, and F4 are shown in the diagram).

[0111] Furthermore, the third load transfer unit 30 is configured to transfer the vertical load (e.g., the load F5 input from the rear wheel arch 11) of the vehicle body 1 input to the first load transfer unit 28 and the second load transfer unit 29 to the side of the vehicle body 1 (see reference). Figure 8 (Arrows F6 and F7 shown in the diagram).

[0112] In addition, the "load in the vertical direction of the vehicle body 1" is, for example, the load input when the vehicle is traveling at a bend in the road and is tilted in the vertical direction.

[0113] Next, the functions and effects obtained by the rear structure of the vehicle body through this embodiment will be explained.

[0114] According to this embodiment, the rear inner panel 8, which is disposed from the rear wheel arch 11 to the rear pillar 6, includes a frame portion 14 extending in the longitudinal direction of the vehicle body 1. Therefore, it is possible to suppress the deformation of the membrane surface of the rear inner panel 8, and to suppress the vibration of the rear inner panel 8 and the generation of noise caused by the vibration. Moreover, the frame portion 14 enables load transfer between the rear wheel arch 11 and the rear pillar 6, thereby improving the rigidity of the rear inner panel 8.

[0115] Therefore, it achieves the following effects: it can both ensure the rigidity of the rear inner plate 8 and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0116] Furthermore, according to this embodiment, the cross-sectional shape of the frame portion 14 when cut orthogonally to the long side direction is formed to protrude in the vehicle width direction (outside the vehicle width direction in this embodiment). Therefore, deformation of the rear inner panel 8 can be suppressed without the use of reinforcing members such as brackets. Consequently, vibration of the rear inner panel 8 and noise caused by such vibration can be suppressed without the need for reinforcing members. Moreover, the frame portion 14 enables load transfer between the rear wheel arch 11 and the rear pillar 6, thus improving the rigidity of the rear inner panel 8.

[0117] Therefore, it achieves the following effects: it can both ensure the rigidity of the rear inner plate 8 and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0118] Furthermore, according to this embodiment, a frame portion 14 is included that extends along the lower end of the window portion 10 in the longitudinal direction of the vehicle body 1. Therefore, the frame portion 14 extends along the lower end of the window portion 10, thereby improving the rigidity of the periphery of the window portion 10, which becomes an opening, and thus effectively suppressing the deformation of the membrane surface of the rear inner panel 8.

[0119] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0120] Furthermore, according to this embodiment, the section depth of the skeleton portion 14 when cut along the long side direction in the vehicle width direction is formed such that it increases towards the middle portion of the long side direction of the skeleton portion 14. Therefore, the load input to the rear inner plate 8 can be efficiently transferred to the skeleton portion 14, thereby further improving the rigidity of the rear inner plate 8. As a result, the deformation of the membrane surface of the rear inner plate 8 can be further suppressed, and the vibration of the rear inner plate 8 and the generation of noise caused by the vibration can be suppressed.

[0121] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0122] Furthermore, according to this embodiment, the frame portion 14 connects the side beam column 5 and the rear column 6, thus enabling the load input to the rear inner plate 8 to be transmitted to the side beam column 5 and the rear column 6 via the frame portion 14, thereby improving the rigidity of the rear inner plate 8. As a result, it is more effective in suppressing the deformation of the membrane surface of the rear inner plate 8, and in suppressing the vibration of the rear inner plate 8 and the generation of noise caused by the vibration.

[0123] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0124] Furthermore, according to this embodiment, a load transfer section 18 is included around each of the plurality of openings 15, 16, 17 provided on the rear inner plate 8, so that the weight of the rear inner plate 8 can be reduced and the input load can be transferred via the load transfer section 18.

[0125] The result is that it achieves the following effect: it can ensure the rigidity of the rear inner panel 8, and also achieve the lightweighting of the rear inner panel 8.

[0126] Furthermore, according to this embodiment, the first load-transfer portion 28, extending from the upper end 31 and lower end 32 of the rear wheel arch 11 toward the middle portion of the long side of the rear pillar 6, can efficiently transfer the load input to the rear inner plate 8, thereby improving the rigidity of the rear inner plate 8. As a result, it is more effective in suppressing the deformation of the membrane surface of the rear inner plate 8, and suppressing the vibration of the rear inner plate 8 and the generation of noise caused by the vibration.

[0127] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0128] Furthermore, according to this embodiment, a second load-transfer portion 29 is included, extending from the upper end 31 and lower end 32 of the rear wheel arch 11 to the upper end 33 and lower end 34 of the rear pillar 6, respectively. This allows for efficient transmission of the load input to the rear inner plate 8, thereby improving the rigidity of the rear inner plate 8. As a result, it further suppresses membrane deformation of the rear inner plate 8 and reduces vibration of the rear inner plate 8 and the generation of noise caused by such vibration.

[0129] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0130] Furthermore, according to this embodiment, a third load transfer unit 30 is included, connecting the first load transfer unit 28 and the second load transfer unit 29. This allows for the transfer of not only loads input along the longitudinal direction of the vehicle body 1, but also loads input to the vertical direction of the vehicle body 1 via the first load transfer unit 28 and the second load transfer unit 29. As a result, deformation of the first load transfer unit 28 and the second load transfer unit 29 can be suppressed.

[0131] Therefore, it achieves the following effect: it can better ensure the rigidity of the rear inner plate 8, and suppress the vibration of the rear inner plate 8 and the noise caused by the vibration.

[0132] Furthermore, the structure described in the embodiments can be appropriately modified within the scope of the present invention and is not limited to the structure of the embodiments described.

[0133] In the embodiment described above, the skeleton portion 14 is formed to protrude outward from the body portion 9 in the vehicle width direction, but it is not limited to this and may also have the structure described below.

[0134] That is, although not specifically illustrated, the frame portion can also be formed to protrude inward from the body portion of the rear inner panel in the vehicle width direction. In this case, the frame portion is formed such that when cut perpendicular to the long side of the frame portion, the cross-sectional shape protrudes inward in the vehicle width direction (approximately U-shaped).

[0135] According to the structure, the cross-sectional shape of the frame portion when cut orthogonally to the long side direction is formed to bulge inward in the vehicle width direction. Therefore, deformation of the rear inner panel membrane can be suppressed without the need for reinforcing members such as brackets, thus suppressing vibration of the rear inner panel and the generation of noise caused by such vibration. Furthermore, the frame portion enables load transfer between the rear wheel arch and the rear pillar, thereby improving the rigidity of the rear inner panel.

[0136] Therefore, according to the structure, the same effect as the embodiment described above is achieved: it can ensure the rigidity of the rear inner panel and suppress the vibration of the rear inner panel and the noise caused by the vibration.

Claims

1. A rear body structure comprising a rear inner panel forming part of a rear wheel arch, the rear inner panel constituting part of an opening at the rear of the vehicle body and engaging a rear pillar extending in a vertical direction along the vehicle body, characterized in that... The rear inner panel includes a frame portion extending in the longitudinal direction of the vehicle body. The rear inner panel includes a plurality of openings and a plurality of load transfer portions formed around each of the openings.

2. The rear structure of the vehicle body according to claim 1, characterized in that, The skeleton portion is formed such that when cut perpendicular to the long side direction, the cross-sectional shape protrudes in the vehicle width direction.

3. The rear structure of the vehicle body according to claim 2, characterized in that, A window is formed by the body and the rear inner panel on the side of the rear of the vehicle. The frame extends along the lower end of the window portion in the longitudinal direction of the vehicle body.

4. The rear structure of the vehicle body according to claim 3, characterized in that, The skeleton portion is formed such that the cross-sectional depth of the skeleton portion increases as it is cut along the long side direction in the vehicle width direction towards the middle portion of the skeleton portion.

5. The rear structure of the vehicle body according to claim 3, characterized in that, The rear inner panel has an integrally formed wheel cover outer member that constitutes the outer side of the rear wheel cover in the vehicle width direction. The rear wheel arch includes wheel arch internals that form the inner side of the rear wheel arch in the vehicle width direction. The wheel arch inner component is connected at its upper end to the lower end of a side beam pillar extending in the vertical direction of the vehicle body. The side beam pillar is positioned at a predetermined interval from the rear pillar in the longitudinal direction of the vehicle body. The skeleton extends from the side beam column to the rear column.

6. The rear structure of the vehicle body according to claim 1, characterized in that, The load transfer section includes a first load transfer section, which extends from the upper and lower ends of the rear wheel arch toward the middle part of the long side of the rear pillar.

7. The rear structure of the vehicle body according to claim 6, characterized in that, The load transfer unit includes a pair of second load transfer units. One of the second load transfer parts extends from the upper end of the rear wheel arch to the upper end of the rear pillar, and the other second load transfer part extends from the lower end of the rear wheel arch to the lower end of the rear pillar.

8. The rear structure of the vehicle body according to claim 7, characterized in that, The load transfer section includes a third load transfer section, which is formed along the long side of the rear column and connects the first load transfer section and the second load transfer section.

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