JP2000272425A - Rear part body structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle which can markedly enlarge a space of baggage room, while car body rigidity is maintained. SOLUTION: This vehicle is provided with a seat back 31 partitioning a front side of a baggage room 2, vehicle member 46 of U shape in plan view arranged in a rear side of the seat back, and a package tray 5 sealing openably/ closable an upper surface opening part 11 formed by the seat back and the vehicle member. A reinforcing member 7 is formed in almost U shape by both end mounting parts 71 and a main body part 72, both the mounting parts are rotatably mounted around a shaft X4 relating to a rear pillar 44. The seat back is formed capable of being prostrated, the package tray is moved forward according as the seat back is prostrated, and the upper surface opening part is opened also loaded along a back surface of the seat back (alternate long and short dash line in the drawing). The reinforcing member is rotated around the shaft X4 so as to be positioned in the upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear body structure of a vehicle having a luggage compartment adjacent to the rear of a passenger compartment.

[0002]

2. Description of the Related Art Conventionally, a so-called hatchback-shaped vehicle provided with a package tray or a tonneau cover for covering a luggage compartment is known (for example, Japanese Patent Application Laid-Open Nos. 5-139213 and 5-201284). Or JP-A-6-270745).

[0003]

The so-called sedan-shaped vehicle has a disadvantage that the luggage space is smaller than that of the hatchback-shaped vehicle.

[0004] In order to solve this inconvenience, the seat back of the rear seat that partitions the front of the luggage compartment is made to be able to fall down, and when necessary, the seat back is made to fall down so that the luggage compartment and the passenger compartment can be folded down. Are known (for example, see Japanese Patent Application Laid-Open No. 7-228195).

[0005] However, in this case, although long items can be loaded, the height of the seat back is restricted even if the seat back is laid down, so that the space of the luggage compartment is not significantly increased. That is, as shown in FIG. 17, in the sedan-shaped vehicle, the seat back 3 that partitions the front side of the luggage compartment 2 is provided.
Rear package member 81 extending in the vehicle width direction on the back of 1
b and a rear deck member 81a extending in the vehicle width direction along the lower end of the rear window glass 49a, and an opening formed therebetween is a metal panel member 8
1c. With this configuration, the rigidity of the vehicle body is improved. However, even if the seat back 31 is folded down, the rear package member 81
Due to the presence of the b and the panel member 81c, the passenger compartment 1 and the cargo compartment 2 only communicate in the front-rear direction, and large loads cannot be loaded in the vertical direction.

Therefore, it is conceivable to eliminate the package member 81b and the panel member 81c. In this case, the occupant compartment 1 and the luggage compartment 2 communicate with each other in the front-rear direction and the up-and-down direction. Is greatly expanded.

However, the rear package member 81b
In addition, if the panel member 81c is eliminated, there is a problem that the rigidity of the vehicle body is reduced.

The present invention has been made in view of such circumstances, and an object of the present invention is to realize a vehicle capable of greatly increasing a luggage space while maintaining body rigidity. It is in.

[0009]

In order to achieve the above object, the present inventor paid attention to providing a reinforcing member instead of the rear package member. It gets in the way when loading. Accordingly, the present invention has been completed in view of the fact that the reinforcing member is configured to be movable so as not to be obstructed when the seat back is folded down to expand the luggage space.

Specifically, the first invention is directed to a rear body structure of a sedan-shaped vehicle having a luggage compartment provided to protrude rearward from a rear side of a passenger compartment, and is directed to a front side of the luggage compartment. And a vehicle member extending substantially rearward from both end positions in the vehicle width direction of the seat back and having rear ends connected to each other in the vehicle width direction and having a substantially U-shape in plan view, A package that is removably attached to a trunk lid that covers the luggage compartment on the rear side of the member so as to be openable and closable, and an upper opening that allows the passenger compartment and the luggage compartment, which are surrounded by the seat back and the vehicle member, to communicate with each other; And a tray. And, in the upper opening,
It is a specific matter that a reinforcing member extending in the vehicle width direction is provided so as to connect both side portions in the vehicle width direction of the vehicle to each other. Here, as the “reinforcement member”, for example, it is only necessary to dispose the base portions of the rear pillars disposed on both sides in the vehicle width direction of the vehicle so as to connect with each other. Also,
The "seat back" is preferably configured to be switchable between an upright state in which the back surface partitions the luggage compartment and a lying state in which the back surface faces upward.

In this case, the passenger compartment and the luggage compartment are usually separated from each other by sealing the upper opening of the package tray, while the seat back is lowered and the package tray is closed. , Both the front side of the luggage compartment defined by the seat back and the upper side of the luggage compartment defined by the package tray are opened. Therefore, in the sedan-shaped vehicle, a large luggage space not limited by the rear package member and the panel member is formed by the rear passenger compartment and the luggage room. In this way, the need for a sedan-shaped vehicle in which the passenger compartment and the luggage compartment are usually present as independent spaces is satisfied, and
Even in a sedan-shaped vehicle, a large luggage space can be formed by the rear part of the passenger compartment and the luggage room.

Since the reinforcing member is provided in the upper opening, the rigidity of the vehicle body can be improved even if the rear package member and the panel member are eliminated. As a result, the expansion of the luggage space and the improvement of the rigidity of the vehicle body are compatible.

[0013] On the other hand, a second invention is directed to a rear body structure of a vehicle having a luggage compartment adjacent to the rear of the passenger compartment, wherein both side walls defining both sides in the vehicle width direction of the luggage compartment are connected to each other. The reinforcing member is provided so as to extend in the vehicle width direction, and the reinforcing member is mounted so that its disposition position can be changed in a vertical direction. Here, the “vehicle” may be, for example, a sedan shape or a hatchback shape. Further, it may have a wagon shape.

In this case, the rigidity of the vehicle body is improved by providing reinforcing members for connecting the side walls of the luggage compartment to each other. Further, since the arrangement position of the reinforcing member can be changed in the vertical direction, for example, when loading the luggage, if the reinforcing member is changed to the upper position, the space in the vertical direction is enlarged. Large luggage can be loaded. On the other hand, when no luggage is loaded, by changing the reinforcing member to a lower position, the rear view can be ensured and the appearance can be improved.

In the first and second aspects of the present invention, the "reinforcement member" is provided at the mounting portions at both ends in the vehicle width direction and at positions vertically offset from the mounting portions at both ends. The two mounting portions are formed in a substantially U-shape by a vehicle width direction central body portion connected to each other, and the mounting portions are rotatably mounted on the vehicle around an axis extending in the vehicle width direction. Good. In this case, if the mounting portion is rotated about an axis extending in the vehicle width direction, the position of the main body portion in the vertical direction is changed by an amount offset with respect to the mounting portion along with this rotation. For this reason, while loading the luggage by rotating the main body part to the upper side, the reinforcing member is normally positioned at the lower side when the luggage is not loaded, and is arranged, for example, at the lower side of the package panel. If this is the case, the appearance will be improved.

[0016]

As described above, according to the rear body structure of the vehicle according to the present invention, the space for loading the load can be greatly expanded. In particular, in a sedan-shaped vehicle, the luggage space in the up-down direction and the front-rear direction can be increased while the luggage room is independent of the passenger compartment. In addition, when loading the load, it is possible to improve the rigidity of the vehicle body by using a reinforcing member that can avoid interference with the load, and to increase the space in the luggage room.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a rear structure of a vehicle according to an embodiment of the present invention. In this vehicle, a luggage compartment 2 is formed so as to protrude rearward with respect to an occupant compartment 1. Is
As shown in FIG. 5 or FIG. 6, the vehicle is formed in a so-called sedan shape in which the outside of the vehicle is openably and closably covered by a trunk lid 49b.

In FIG. 1, reference numeral 3 denotes a rear seat. As shown in FIG. 2, the rear seat 3 has an axis X whose seat cushion 32 extends in the vehicle width direction at a lower front end position.
The seat cushion 32 is configured to be rotatable around one, and the seat cushion 32 can be erected.
On the other hand, the seat back 31 is configured to be rotatable around the vehicle width direction axis X2 at its lower end position, and the seat back 31 is capable of falling down such that its back surface is horizontal (FIG. 2). Or see the dashed line in FIG. 5). Thus, the rear seat 3 is configured to be capable of so-called double fold. And the seat back 31
So that luggage 6 and the like can be loaded in the passenger compartment 1 (see the dashed line in FIG. 3 or FIG. 5). Further, as shown in FIG. 4, the seat back 31 is configured to rotate around the vehicle width direction axis X2 and to adjust a rearward inclination angle (see a dashed line in FIG. 4 or FIG. 6). ).

Next, the frame structure of the vehicle will be described (see FIGS. 7 to 9 or 14).

FIG. 7 shows a frame structure of a left rear portion of the vehicle. The frame structure of the right rear portion of the vehicle is symmetrical to the left rear portion with respect to the center axis in the vehicle width direction (not shown).

As shown in FIG. 7, rear side members 41 are provided on both sides in the vehicle width direction so as to extend in the vehicle front-rear direction. And this rear side member 4
A wheel house 42 is formed outside of the vehicle 1 in the vehicle width direction. Also, a floor panel 45 is arranged so as to connect the rear side members 41 on both sides in the vehicle width direction.

A pillar lower 43 is provided in front of the wheel house 42, and a rear pillar 44 extending upward is provided above the pillar lower 43 (see FIG. 7 or FIG. 8). And this pillar lower 43
A door 48 is provided in front of the rear pillar 44 (see FIG. 8).

As shown in FIG. 8 or FIG. 14, the wheel house 42 includes a wheel house outer 42a disposed outside in the vehicle width direction and a wheel house inner 42b disposed inside in the vehicle width direction. It is configured. A fender 47 is provided outside the wheel house outer 42a in the vehicle width direction to form a vehicle body outer surface.

The seat back 31 of the rear seat is arranged between the two pillar lowers 43 arranged on both sides in the vehicle width direction (see FIG. 8). The rear ends extend from the upper ends of the pillar lowers 43, that is, both end positions in the vehicle width direction of the seat back 31, respectively.
A rear deck member 46 as a vehicle member having a U-shape in plan view formed by connecting its rear end portions to each other in the vehicle width direction is provided (see FIG. 7). The rear deck member 46 holds the lower end of the rear window glass 49a, as shown in FIG.
6, the trunk lid 49b that covers the upper surface of the luggage compartment 2
Are held so that they can be opened and closed freely. The rear deck member 46 is formed with two closed sections 46a and 46b, thereby improving rigidity. That is, one closed cross section 46b is formed by the deck member inner 46c constituting the rear lower portion of the rear deck member 46 and the deck member outer 46d disposed above the deck member inner 46c. The deck member inner 46 d is bent downward from the front end of the deck member outer 46 d and extends.
The other closed cross section 46a is formed by the reinforcement inner 46e disposed on the front side of the reinforcement 6c and the reinforcement outer 46f positioned on the upper side of the reinforcement inner 46e. I have. Further, a step portion 46g in which a front portion is higher than a rear portion is formed below the rear deck member 46, and a package tray 5 described later is accommodated therein. The upper and side surfaces of the rear deck member 46 are covered with a trim 47a (see FIG. 9 or 10).

As described above, the rear deck member 46 and the seat back 31 form the upper surface opening 11 that allows the cargo room 2 and the passenger room 1 to communicate with each other, and the package tray 5 is disposed in the upper surface opening 11. It has been established.

Next, the package tray 5 and mounting of the package tray 5 will be described.

As shown in FIG. 10, the package tray 5 is formed in a flat plate shape, and has a guide groove 51a formed on the side thereof so as to be concave inward from the side surface and extending in the vehicle front-rear direction. (See FIG. 11 or FIG. 12). The cross-sectional shape of the guide groove 51a has projecting pieces 51b, 51b protruding in opposite directions from the upper side and the lower side of the opening, respectively. I have.

As shown in FIG. 11, the trim 47a covering the rear deck member 46 is provided at its corner position, that is, at both ends in the vehicle width direction at the rear side of the upper surface opening 11, inward in the vehicle width direction. A protruding guide member 47c is attached. The guide member 47c has a base 47d.
And a tip portion 47e having a larger diameter than the base portion 47d.
And is constituted by.

The front end of the package tray 5 is shown in FIG.
As shown in FIG. 2, the seat back 31 is attached to the back. The seat back 31 is provided with a pair of mounting portions 31a, 31a having pins 31b, 31b,... Protruding on both sides in the vehicle width direction, arranged in the vehicle width direction. On the other hand, at the front end of the package tray 5,
A concave portion 51f is formed, and locking holes 51g, 51g are formed on both side walls of the concave portion 51f. Then, the pin 31b is inserted into the locking hole 51g, and the front end of the package tray 5 is rotatably attached to the rear surface of the seat back 31 around an axis X3 extending in the vehicle width direction. ing.

As described above, the front end of the package tray 5 is attached to the back of the seat back 31, while the package tray 5 has the upper surface opening 11 with the guide member 47c inserted in the guide groove 51a. It is arranged to seal (see FIG. 10 or FIG. 12). Here, the projecting pieces 51b, 5 of the guide groove 51a
1b and the front end portion 47e of the guide member 47c are engaged with each other, so that the movement of the package tray 5 in the vehicle width direction is restricted, while the base portion 47 of the guide member 47c.
The package tray 5 can be moved in the vehicle front-rear direction by d and the projecting pieces 51b, 51b.

As shown in FIG. 10, a reinforcing member 7 is provided in the upper opening 11 so as to connect the bases of both rear pillars 44 to each other.
As shown in FIG. 14, is mounted on a mounting member 73 which is mounted on the rear pillar inner 44a and the rear pillar rain 44b so as to protrude in the vehicle width direction.

As shown in FIG. 15, the mounting member 73 includes a shaft portion 73a and a ball portion 73b mounted on an inner end of the shaft portion 73a in the vehicle width direction. The shaft portion 73a includes the rear pillar inner 44a,
The rear pillar rain 44b and the tubular member 44c connecting the both 44a, 44b are provided so as to penetrate therethrough.
The outer end in the vehicle width direction is the rear pillar rain 44b.
Is fixed by welding. A thread groove is formed in the shaft portion 73a.

A fixing member 74 is screwed into the thread groove of the shaft portion 73a. The fixing member 74 includes a fixing portion 74b in which a screw groove to be screwed with the screw groove is formed, and a handle portion 74a provided to protrude upward from the fixing portion 74b. By gripping the handle portion 74a and rotating it around the axis X4 extending in the vehicle width direction, the fixing portion 74b moves in the vehicle width direction.

As shown in FIG. 10, the reinforcing member 7 is composed of mounting portions 71, 71 at both ends and a main body 72 at the center in the vehicle width direction. Thus, they are positioned at positions offset in the vertical direction, and the two 71 and 72 are connected to each other. Thereby, the reinforcing member 7 is formed in a U-shape. As shown in FIG. 14 or FIG. 15, the mounting portion 71 is formed with an insertion hole 71a which is concave inward from the end face, and the spherical portion 73b of the mounting member 73 is inserted. It has become. As a result, this portion is configured like a ball joint, and the mounting portion 71 is connected to an axis X4 extending in the vehicle width direction.
It is designed to be rotatable around the center. Further, by rotating the reinforcing member 7 about the axis X4 in this manner, the arrangement position of the main body 72 is switched between lower and upper positions (see FIG. 5).

The reinforcing member 7 is usually provided with a trim 47a.
The main body 72 is disposed below the package tray 5 through a passage hole 47f formed in the package tray 5 (see FIG. 10). When the main body 72 of the reinforcing member 7 is disposed on the upper side, as shown in FIG. 16, a lid 47b provided on the rear side of the passage hole 47f is opened, and the reinforcing member 7 is connected to the axis X4. If it is rotated around, the end of the main body 72 passes through the space of the lid 47b, and the main body 72 can be moved above the package tray 5.

When the handle portion 74a is gripped and rotated to move the fixed portion 74b inward in the vehicle width direction, the fixed portion 74b and the mounting portion 71 of the reinforcing member 7 are mutually connected. The reinforcing member 7 is pressed so as to prevent the rotation of the reinforcing member 7. Thereby, the reinforcing member 7 can be fixed in a state where the main body 72 of the reinforcing member 7 is disposed below the package tray 7, or can be fixed in a state where the main body 72 is disposed above the package tray 7. The reinforcing member 7 can be fixed.

Next, the case where the rear part of the passenger compartment 1 of the vehicle is used as a luggage space will be described.
The operation and effect of the above embodiment will be described.

When the rear part of the passenger compartment 1 of the vehicle is used as a luggage space, first, the seat cushion 32 is used.
Is rotated about the axis X1 to be in the upright state, and the seat back 31 is rotated about the axis X2 to be in the lying state. At this time, the package tray 5 moves forward integrally with the seat back 31, and the upper opening 11 formed by the seat cushion 31 and the rear deck member 46 is opened. And
Since the package tray 5 is rotatable around the axis X3, the package tray 5 is placed along the back surface of the seat back 31 (see FIG. 2 or 5). The reinforcing member 7 is fixed by rotating it around the axis X4 so that the main body 72 is located on the upper side.

As shown in FIG. 5, the seat back 31
And the front and upper portions of the luggage compartment 2 are both opened to form a large luggage compartment space by the rear portion of the occupant compartment 1 and the luggage compartment 2. For this reason, in the conventional sedan-shaped vehicle, it becomes possible to load large luggage 6 up and down and back and forth that could not be loaded due to interference with the rear package member and the panel member (see FIG. 3 or FIG. 5). . Such luggage,
You can get it in and out of the rear door. Also, since the reinforcing member 7 is located on the upper side, the load 6
Can be avoided.

When the luggage 6 and the like are stacked on the back of the seat back 31 that has fallen down, the back of the seat back 31 can be protected by the package tray 5. Further, the package tray 5 can improve the stability when the load 6 is placed. Further, since the back surface of the seat back 31 is laid down on a horizontal surface, the convenience in loading the load 6 and the loadability of the load such as the stability in loading the load 6 can be improved. Become.

On the other hand, as shown in FIG. 6, when the seat back 31 is tilted backward,
Is moved backward by being guided by the guide member 47c, and comes to be located in the lower step portion 46g on the lower side of the rear deck member 46. Therefore, even if the seat back 31 is tilted backward, the upper surface opening 11 can always be automatically closed. As a result, the passenger compartment 1
It is possible to satisfy the needs of a sedan-shaped vehicle in which the vehicle is independent of the cargo room 2. In addition, since the seat back 31 does not include the conventionally provided package member, the inclination angle of the seat back 31 can be increased thereafter. As a result, the comfort of the occupant can be improved (see FIG. 4 or FIG. 6).

As described above, by eliminating the rear package member and the panel, it is possible to greatly increase the luggage space in the sedan-shaped vehicle. On the other hand, the passenger compartment 1 and the luggage compartment 2 are spaces that are independent of each other during normal times, that is, when the seat back 31 is standing up, so that the needs of a sedan-shaped vehicle can be satisfied.

By arranging the reinforcing member 7 in the upper opening 11, the rigidity of the vehicle body can be improved. Further, since the position of the reinforcing member 7 can be changed up and down, when the load 6 is loaded, the main body 72 of the reinforcing member 7 is positioned above to avoid interference with the load 6. As a result, larger loads can be loaded (see the dashed line in FIG. 3 or FIG. 5).
Normally, by disposing the package tray 5 below the package tray 5, it is possible to secure the rear view and improve the appearance (see the solid line in FIG. 1 or 5).

As described above, in a sedan-shaped vehicle,
While the luggage compartment 2 is independent of the passenger compartment 1, the luggage compartment space in the up-down direction and the front-rear direction can be expanded. In addition, when the load 6 is loaded, it is possible to improve the rigidity of the vehicle body by the reinforcing member 7 that can avoid interference with the load 6, and to increase the space in the luggage compartment. .

Further, when the occupant sits on the rear seat 3, the reinforcing member 7 may be fixed in a state of being located on the upper side. In this way, for example, when the vehicle rolls over, a space above the occupant can be secured, and the occupant can be used as a member for protecting the occupant's head (see FIG. 6). Dash-dot line). <Other Embodiments> Note that the present invention is not limited to the above-described embodiments, but includes various other embodiments. That is, in the above-described embodiment, the rear seat 3 is configured to be capable of so-called double fold, in which the rear surface of the seat back 31 falls down so as to be horizontal,
However, the present invention is not limited thereto, and a rear seat that can fall down such that the front surface of the seat back 31 abuts on the seat cushion 32 may be used.

In the above-described embodiment, the front end of the package tray 5 is attached to the back of the seat back 31, and is configured to move with the seat back 31 falling or tilting backward. However, the present invention is not limited to this. For example, the package tray may be configured to be simply detachably attached to the upper surface opening 11.

In the above embodiment, the package tray 5 is configured to move rearward as the seat back 31 is tilted rearward. However, the present invention is not limited to this. For example, the package tray 5 may be moved with respect to a line in the vehicle width direction. A bent portion may be provided to be bent, and the bent portion may be bent as the seat back 31 is tilted backward.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing a normal state of a rear portion of a vehicle according to an embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1, illustrating a state in which a seat back at a rear portion of the vehicle according to an embodiment of the present invention is in a downed state.

FIG. 3 is a view corresponding to FIG. 1, showing a state in which a luggage is stacked with the seat back folded down.

FIG. 4 is a view corresponding to FIG. 1, illustrating a rearwardly inclined state of a seat back at a rear portion of the vehicle according to the embodiment of the present invention.

FIG. 5 is an explanatory side view showing a seat back in a laid state;

FIG. 6 is a view corresponding to FIG. 5, showing a rearwardly inclined state of the seat back.

FIG. 7 is an explanatory perspective view showing a frame structure of a rear portion of the vehicle.

FIG. 8 is an explanatory sectional view showing an AA section of FIG. 7;

FIG. 9 is an explanatory sectional view showing a BB section of FIG. 7;

FIG. 10 is a perspective explanatory view showing a rear portion of the passenger compartment in which a package tray and a reinforcing member are provided.

FIG. 11 is an enlarged perspective explanatory view showing a corner portion of a rear deck member.

FIG. 12 is an explanatory sectional view showing a DD section of FIG. 11;

FIG. 13 is an explanatory perspective view showing attachment of a package tray to a seat back.

FIG. 14 is an explanatory sectional view showing a section taken along line CC of FIG. 10;

FIG. 15 is an enlarged cross-sectional explanatory view showing a mounting portion of a reinforcing member.

FIG. 16 is a view corresponding to FIG. 10, showing a state in which the arrangement position of the reinforcing member is changed.

FIG. 17 is a view corresponding to FIG. 9 showing a conventional rear body structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 passenger compartment 2 luggage compartment 5 package tray 7 reinforcing member 31 seat back 44 rear pillar 46 rear deck member (vehicle member) 71 mounting portion 72 main body portion 49b trunk lid X4 shaft extending in the vehicle width direction

Claims (4)

[Claims] 1. A rear body structure of a sedan-shaped vehicle including a luggage compartment provided to protrude rearward from a rear side of an occupant compartment, wherein a seatback defining a front side of the luggage compartment is provided. Extending rearward from both ends of the seat back in the vehicle width direction,
A substantially U-shaped vehicle member having a rear end connected to each other in the vehicle width direction, a trunk lid for freely opening and closing a luggage compartment behind the vehicle member, the seat back and the vehicle member And a package tray removably attached to an upper surface opening that allows the passenger compartment and the cargo room to be communicated with each other. The upper surface opening connects both side portions in the vehicle width direction of the vehicle to each other. Rear body structure of a vehicle, wherein a reinforcing member extending in the vehicle width direction is provided. 2. The rear part of a vehicle according to claim 1, wherein the reinforcing members are arranged to connect base ends of rear pillars arranged on both sides in a vehicle width direction of the vehicle. Body structure. 3. A rear body structure of a vehicle having a luggage compartment adjacent to a rear side of an occupant compartment, the vehicle width direction connecting both side walls defining both sides of the luggage compartment in the vehicle width direction. A vehicle body structure for a rear part of a vehicle, comprising: a reinforcing member that is disposed so as to extend in a direction in which the reinforcing member is disposed so as to be vertically movable. 4. The mounting member according to claim 1, wherein the reinforcing member is positioned at mounting portions at both ends in the vehicle width direction and at positions vertically offset from the mounting portions at both ends. And a main body portion at the center in the vehicle width direction that is connected to each other. The two mounting portions are rotatably mounted on a vehicle around an axis extending in the vehicle width direction. Rear body structure of the vehicle to be used.