CN115803251A - Vehicle body frame structure of vehicle - Google Patents

Abstract

Left and right rear end pillars (20) are erected on both sides in the vehicle width direction of the vehicle rear end where the side face skeleton structure (14) and the rear face skeleton structure (15) intersect, and extend in the vertical direction. The opening lower edge frame (41) extends in the vehicle width direction above the rear end cross member (13) of the vehicle body frame (2) so as to define the lower edge of the rear surface opening (9), and connects the left and right rear end pillars (20) to constitute a rear surface skeleton structure (15). The 1 st horizontal frame (43) extends in the vehicle width direction in front of the open lower edge frame (41) in the vehicle, and connects the left and right side face frame structures (14). Left and right front and rear connecting frames (45) are arranged apart in the vehicle width direction, extend in the vehicle front and rear direction, and connect the opening lower edge frame (41) and the 1 st horizontal frame (43).

Description

Vehicle body frame structure of vehicle

Technical Field

The present disclosure relates to a vehicle body frame structure of a vehicle.

Background

Patent document 1 illustrates a rear body structure of a bus in which a plurality of cross members are fixed as a framework material to a rear surface member of the bus. The plurality of cross members are arranged at different height positions and spaced apart from each other in the vertical direction, and extend substantially horizontally in the vehicle width direction.

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 10-250382

Disclosure of Invention

Technical problem to be solved by the invention

When large-sized vehicle-mounted components (for example, a battery for driving, etc.) are mounted from the rear of a vehicle and arranged at the rear of a bus (vehicle), a rear surface opening having a large vertical width needs to be provided in the rear surface of the vehicle body as an operation space.

However, in order to provide the rear surface opening having a large vertical width to the structure of patent document 1, it is necessary to arrange the cross member so as to increase the vertical interval therebetween, and the increase in the vertical interval between the cross members causes a reduction in the rigidity of the rear surface of the vehicle body.

Accordingly, an object of the present disclosure is to provide a vehicle body frame structure of a vehicle capable of securing rigidity of a rear surface of the vehicle body and enlarging a rear surface opening.

Means for solving the problems

In order to achieve the above object, a 1 st aspect of the present disclosure is a vehicle body frame structure of a vehicle: the vehicle body side surface is constituted by left and right side surface skeleton structures, and the vehicle body rear surface is constituted by a rear surface skeleton structure. In the vehicle body frame structure, rear end portions of left and right side members extending in the vehicle front-rear direction on both sides in the vehicle width direction are supported from below by a vehicle body frame connected by a rear end cross member extending in the vehicle width direction. The vehicle body skeleton structure includes: left and right rear end pillars, an open lower edge frame, a 1 st horizontal frame, and left and right front and rear connecting frames.

The left and right rear end pillars stand upright on both sides in the vehicle width direction of the vehicle rear end where the side face skeleton structure and the rear face skeleton structure intersect, and extend in the up-down direction. The open lower edge frame extends in the vehicle width direction above the rear end cross member in a manner of defining a lower edge of the rear surface opening, and connects the left and right rear end pillars to constitute a rear surface skeleton structure. The 1 st horizontal frame extends in the vehicle width direction in front of the open lower edge frame in the vehicle, and connects the left and right side face frame structures. The left and right front and rear connecting frames are arranged separately in the vehicle width direction, extend in the vehicle front and rear direction, and connect the opening lower edge frame and the 1 st horizontal frame.

In claim 1, during traveling of the vehicle, a load input from the axle of the rear wheel to the rear surface side of the vehicle body via the vehicle body frame is transmitted from the open lower edge frame to the left and right side frame structures via the left and right front and rear connecting frames and the 1 st lateral frame. In this way, since the load input to the rear surface side of the vehicle body can be dispersed to and supported by the left and right side frame structures via the left and right front-rear connecting frames and the 1 st lateral frame, the reduction in rigidity of the rear surface of the vehicle body due to the enlargement of the vertical width of the rear surface opening (the provision of a large space above the opening lower edge frame) can be reliably suppressed by the left and right front-rear connecting frames and the 1 st lateral frame. Therefore, the rigidity of the rear surface of the vehicle body can be ensured, and the rear surface opening can be enlarged.

A 2 nd aspect of the present disclosure is the vehicle body skeleton structure according to the 1 st aspect, including 1 or a plurality of 2 nd horizontal frames, the 1 or a plurality of 2 nd horizontal frames extending in the vehicle width direction above the 1 st horizontal frame and connecting the left and right side face skeleton structures.

In claim 2, since the left and right side frame structures are connected by the 2 nd horizontal frame, it is possible to transmit a load input to one side frame structure to the other side frame structure via the 2 nd horizontal frame, and it is possible to improve the rigidity of the entire vehicle body rear portion. Therefore, the reduction in rigidity of the rear surface of the vehicle body due to the enlargement of the rear surface opening can be more reliably suppressed.

A 3 rd aspect of the present disclosure is the vehicle body frame structure of the 2 nd aspect, wherein the side frame structure has left and right center pillars erected at substantially the same vehicle front-rear positions as the 1 st cross frame. The 2 nd horizontal frame connects the left and right center pillars.

In claim 3, the 2 nd horizontal frame connects the left and right intermediate pillars erected at substantially the same vehicle front-rear position as the 1 st horizontal frame, so that the rigidity of the entire vehicle body rear portion against load input from the 1 st horizontal frame to the left and right side frame structures can be effectively improved.

A 4 th aspect of the present disclosure is the vehicle body skeleton structure according to any one of the 1 st to 3 rd aspects, in which vehicle-mounted components are mounted on the left and right front-rear connecting frames.

In claim 4, since the load input from the in-vehicle component can be dispersed to the rear surface skeleton structure and the left and right side surface angle measurement structures to be supported, the support rigidity of the in-vehicle component can be ensured even when the in-vehicle component is a heavy object.

A 5 th aspect of the present disclosure is the vehicle body frame structure according to the 2 nd or 3 rd aspect, wherein vehicle-mounted components are placed on the left and right front-rear connecting frames, and the placed vehicle-mounted components are fixed to the 2 nd horizontal frame.

In the aspect 5, the load input from the in-vehicle component can be dispersed to the rear surface skeleton structure and the left and right side surface angle measurement structures to be supported, and therefore, even when the in-vehicle component is a heavy object, the support rigidity of the in-vehicle component can be ensured.

Since the in-vehicle component is fixed to the 2 nd horizontal frame, the support state of the in-vehicle component can be stabilized.

A 6 th aspect of the present disclosure is the vehicle body skeleton structure of any one of the 1 st to 5 th aspects, including 1 or a plurality of upper and lower connecting members. The upper and lower connecting members are disposed between the rear end cross member and the opening lower edge frame, and connect the rear end cross member and the opening lower edge frame.

In claim 6, the open lower edge frame and the rear end cross member are coupled by the upper and lower coupling members, and therefore the rigidity of the rear surface of the vehicle body can be further improved.

A 6 th aspect of the present disclosure is the vehicle body skeleton structure of the 1 st to 6 th aspects, the rear surface opening being defined by: an opening lower edge frame extending in the vehicle width direction below the center of the vertical height of the vehicle body rear surface; left and right rear end posts; and a rear panel of a ceiling surface skeleton structure constituting a vehicle body ceiling surface.

A 7 th aspect of the present disclosure is the vehicle body frame structure according to the 6 th aspect, wherein the rear end panel extends in the vehicle width direction, and both ends in the vehicle width direction thereof are fixed to and supported by upper end portions of the left and right rear end pillars and an upper end portion of the 1 st rear pillar.

Effects of the invention

According to the present disclosure, the rigidity of the rear surface of the vehicle body can be ensured, and the rear surface opening can be enlarged.

Drawings

Fig. 1 is a perspective view of a vehicle body frame structure of the present embodiment as viewed obliquely from behind.

Fig. 2 is a perspective view of the vehicle body frame structure of fig. 1 as viewed obliquely from the front.

Fig. 3 is a side view of the vehicle body frame structure of fig. 1 as viewed from the outside in the vehicle width direction.

Fig. 4 is a rear view of the vehicle body frame structure of fig. 1 as viewed from the rear of the vehicle.

Fig. 5 is a plan view of the vehicle body frame structure of fig. 1 as viewed from above.

Fig. 6 is an enlarged view of a main portion of fig. 2.

Detailed Description

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the following description, the left-right direction means a left-right direction in a state of being directed toward the front of the vehicle. IN the figure, arrow FR indicates the vehicle front, UP indicates the upward direction, and IN indicates the vehicle width direction inner side.

As shown in fig. 1 to 5, a vehicle 1 of the present disclosure is a bus including a vehicle body frame structure 3 supported from below by a vehicle body frame 2, and a battery housing chamber (on-vehicle component housing chamber) 5 is provided at the vehicle rear side of a vehicle compartment 4 on which an occupant is mounted. A battery unit 6 (see fig. 3 to 5) as an in-vehicle component for supplying power to a driving motor (not shown) is mounted in the battery housing chamber 5. The battery unit 6 of the present embodiment is configured by 2 batteries 7 and a battery support frame 8, the 2 batteries 7 are arranged to be overlapped in the vertical direction, and the battery support frame 8 connects and integrates the upper and lower batteries 7. A rear surface opening 9 is provided in the rear surface of the vehicle body, and the rear surface opening 9 opens the vehicle rear side of the battery housing chamber 5. The rear surface opening 9 is formed to have a large lateral width and a large vertical width so as to effectively function as an operation space when the large battery unit 6, which is a heavy object, is mounted and arranged from the rear of the vehicle.

The body frame 2 is composed of left and right 1 pair of side members 10 extending in the vehicle front-rear direction on both sides in the vehicle width direction, and a plurality of cross members 11 extending in the vehicle width direction and connecting the left and right side members 10. The side member 10 of the present embodiment is a split type side member that is split into a plurality of parts in the vehicle front-rear direction, and includes left and right rear side members 12, and the left and right rear side members 12 extend in the front-rear direction at the rear end portion of the vehicle 1. The plurality of cross members 11 include a rear end cross member 13 that connects rear end portions of the left and right rear side members 12. The left and right side members 10 may be of a non-split type (integral type) that is continuous over the entire length of the vehicle.

The left and right vehicle body side surfaces of the vehicle 1 are respectively constituted by side surface frame structures 14, the vehicle body rear surface is constituted by a rear surface frame structure 15, and the vehicle body ceiling surface is constituted by a ceiling surface frame structure 16. The frame structure is a structure formed by intersecting and connecting a plurality of frame members. The cross-sectional shape of the frame material (including the 1 st lateral frame 43, the 2 nd lateral frame 44, and the front-rear connecting frame 45 described later in addition to the frame materials of the vehicle body side surface, the vehicle body rear surface, and the vehicle body ceiling surface) constituting the vehicle body skeleton structure 3 can be set to any shape such as a "U" shape or a rectangular tube shape according to the required strength.

The left and right side frame structures 14 include a plurality of columns 17, a plurality of side frames 18, and a plurality of side coupling frames 26, 27, 28 as frame members. The plurality of columns 17 includes a rear end column 20, a 1 st rear column 21, and a 2 nd rear column (intermediate column) 22. The side frames 18 include a lower frame 23, an intermediate side frame 24, and an upper frame 25.

The left and right rear end pillars 20 stand on both sides in the vehicle width direction of the vehicle rear end where the side face skeleton structure 14 and the rear face skeleton structure 15 intersect, and extend in the vertical direction, and the lower end portions of the rear end pillars 20 are fixed to the vehicle body frame 2. The 1 st rear pillar 21 extends in the vertical direction forward of the rear end pillar 20, and the 2 nd rear pillar 22 extends in the vertical direction forward of the 1 st rear pillar 21. The rear end pillar 20 and the 1 st rear pillar 21 are connected by a side connecting frame (side 1 st horizontal connecting frame 26) extending in the front-rear direction. Similarly, the 1 st rear pillar 21 and the 2 nd rear pillar 22 are coupled by a side coupling frame (side 2 nd horizontal coupling frame 27) extending in the front-rear direction.

The lower frame 23 extends in the front-rear direction above the vehicle body frame 2, and a rear end portion of the lower frame 23 is fixed to the rear end pillar 20. The front end portion of the lower frame 23 is fixed to a side connection frame (wheel house upper vertical frame 28) extending in the vertical direction above the vehicle body frame 2. Intermediate side frame 24 extends in the front-rear direction above lower side frame 23, and the rear side of intermediate side frame 24 and lower side frame 23 are connected by the lower portion of 1 st rear pillar 21 and wheel house upper vertical frame 28. The wheel house upper vertical frame 28 is disposed at substantially the same vehicle front-rear position as the 2 nd rear pillar 22 (see fig. 3 and 6). Upper frame 25 extends in the front-rear direction above intermediate side frame 24, and the upper end of 1 st rear pillar 21 and the upper end of 2 nd rear pillar 22 are fixed to upper frame 25.

Below the lower side frame 23, an arch-shaped rear fender 30 is fixed to define an upper portion of the wheel house 29. The wheel house 29 accommodates a tire 31 (see fig. 3) of a rear wheel, and the vehicle body frame 2 is supported by an axle (not shown) of the rear wheel via a suspension (not shown). A reinforcement member 32 is fixed to the upper surface of the rear end cross member 13 behind the rear fender panel 30, and the reinforcement member 32 reinforces the rear side of the wheel house 29.

The ceiling surface skeleton structure 16 includes a beam-shaped rear end panel 33, a plurality of ceiling beams 34, and a plurality of ceiling surface connecting frames 35 as frame members, and the plurality of ceiling beams 34 include a 1 st ceiling beam 36 and a 2 nd ceiling beam 37. The beam-shaped rear end panel 33 extends in the vehicle width direction, and both ends of the beam-shaped rear end panel 33 in the vehicle width direction are fixed to and supported by the upper end of the rear end pillar 20 and the upper end of the 1 st rear pillar 21. The 1 st ceiling beam 36 extends in the vehicle width direction in a state of being fixed to the front surface of the beam-like rear end panel 33 in a superposed manner, and the other ceiling beams 34 (including the 2 nd ceiling beam 37) extend in the vehicle width direction in front of the 1 st ceiling beam 36 and apart from each other in the front-rear direction. The other ceiling beams 34 are fixed to and supported by the upper frame 25 at both ends in the vehicle width direction. The ceiling surface connecting frame 35 extends in the vehicle front-rear direction, and connects the ceiling beams 34 separated in the front-rear direction.

The rear face skeleton structure 15 includes, as frame members, the left and right rear end pillars 20, the beam-shaped rear end panel 33, left and right rear face both-end frames 40, an open lower edge frame 41, and a plurality of (in the present embodiment, 1 pair of left and right) upper and lower connecting frames 42. The left and right rear-face both-end frames 40 rise from the upper surfaces of the vehicle-widthwise both-end portions of the rear end cross member 13 and extend upward, and the lower end portions of the rear-face both-end frames 40 are fixed to the rear end cross member 13. The lower portions of the left and right rear end pillars 20 are fixed to the left and right rear surface both end frames 40, respectively.

The opening lower edge frame 41 extends in the vehicle width direction above the rear end cross member 13 and below the center of the vertical height of the vehicle body rear surface so as to define the lower edge of the rear surface opening 9, and connects the left and right rear end pillars 20. Both ends in the vehicle width direction of the open lower edge frame 41 are placed on and fixed to the upper ends of the rear surface both end frames 40, and are fixed to the rear end pillars 20. The left and right upper and lower connecting frames 42 extend in the up-down direction between the opening lower edge frame 41 and the reinforcing member 32, and the upper end portion and the lower end portion of the upper and lower connecting frames 42 are fixed to the opening lower edge frame 41 and the reinforcing member 32, respectively. That is, the upper and lower connecting frames 42 and the reinforcing member 32 are disposed between the rear end cross member 13 and the opening lower edge frame 41, and constitute an upper and lower connecting member that connects the rear end cross member 13 and the opening lower edge frame 41. The vehicle width direction positions of the left and right upper and lower connecting frames 42 are set to be substantially the same as the vehicle width direction positions of the left and right front and rear connecting frames 45 described later.

In the present embodiment, the upper edge of the rear opening 9 is defined by the beam-shaped rear end panel 33, and the vehicle-widthwise both side edges of the rear opening 9 are defined by the left and right rear end pillars 20, but the upper edge and both side edges of the rear opening 9 may be defined by other members. For example, an open upper edge frame may be provided to define an upper edge of the rear surface opening 9, the open upper edge frame extending in the vehicle width direction below the beam-shaped rear end panel 33 and connecting the left and right rear end pillars 20. Further, left and right open side edge frames may be provided to extend in the vertical direction on the vehicle width direction inner sides of the left and right rear end pillars 20 and to connect the open lower edge frame 41 and the beam-shaped rear end panel 33, and left and right side edges of the rear surface opening 9 may be defined by the left and right open side edge frames.

The vehicle body frame structure 3 includes, as frame members, a 1 st horizontal frame 43, upper and lower 2 nd horizontal frames 44, and left and right front-rear connecting frames 45. The 1 st horizontal frame 43 extends in the vehicle width direction in the vehicle front direction of the open lower edge frame 41, and connects the left and right side face frame structures 14. In the present embodiment, both ends in the vehicle width direction of the 1 st horizontal frame 43 are fixed to the vehicle width direction inner side surfaces of the left and right wheel house upper vertical frames 28. The wheel house upper vertical frame 28 is disposed at substantially the same vehicle front-rear position as the 2 nd rear pillar 22, and therefore the 2 nd rear pillar 22 stands up at substantially the same vehicle front-rear position as the 1 st lateral frame 43. The 1 st horizontal frame 43 is provided at a height position between the lower side frame 23 and the middle side frame 24.

The upper and lower 2 nd horizontal frames 44 extend in the vehicle width direction above the 1 st horizontal frame 43 so as to be vertically separated from each other, and connect the left and right side face frame structures 14. A partition wall (not shown) partitioning the vehicle compartment 4 and the battery storage compartment 5 is fixed to the upper and lower 2 nd horizontal frames 44. In the present embodiment, both ends of the 2 nd horizontal frame 44 in the vehicle width direction may be fixed to the inner side surfaces of the left and right 2 nd rear pillars 22 in the vehicle width direction. The number of the 2 nd horizontal frames 44 is not limited to 2, and may be 1 or 3 or more.

The left and right front-rear connecting frames 45 are arranged to be separated in the vehicle width direction, extend in the vehicle front-rear direction, and connect the opening lower edge frame 41 and the 1 st horizontal frame 43. In the present embodiment, the front end portion of the front-rear connecting frame 45 is fixed to the vehicle rear surface of the 1 st horizontal frame 43, and the rear end portion of the front-rear connecting frame 45 is placed on and fixed to the upper surface of the opening lower edge frame 41.

On the vehicle rear surface of the 2 nd horizontal frame 44, a battery support member 46 is fixed, and the battery support member 46 supports the battery unit 6 from the front. The battery unit 6 is mounted on and fixed to the left and right front and rear connecting frames 45. The vehicle front portion of the battery unit 6 is fixed to the 2 nd lateral frame 44 via a battery support member 46.

According to the present embodiment, during traveling of the vehicle 1, a load input from the axles of the rear wheels to the rear surface side of the vehicle body via the vehicle body frame 2 is transmitted from the opening lower edge frame 41 to the left and right side frame structures 14 via the left and right front-rear connecting frames 45 and the 1 st horizontal frame 43. In this way, since the load input to the vehicle body rear surface side can be dispersed to and supported by the left and right side frame structures 14 through the left and right front-rear connecting frames 45 and the 1 st lateral frame 43, the reduction in rigidity of the vehicle body rear surface due to the enlargement of the vertical width of the rear surface opening 9 (the provision of a large space above the opening lower edge frame 41) can be reliably suppressed by the left and right front-rear connecting frames 45 and the 1 st lateral frame 43. Therefore, the rigidity of the rear surface of the vehicle body can be ensured, and the rear surface opening 9 can be enlarged.

Since the left and right side frame structures 14 are coupled by the 2 nd lateral frame 44, the load input to one side frame structure 14 can be transmitted to the other side frame structure 14 via the 2 nd lateral frame 44, and the rigidity of the entire vehicle body rear portion can be improved. Therefore, a decrease in rigidity of the rear surface of the vehicle body due to the enlargement of the rear surface opening 9 can be more reliably suppressed.

Since the left and right 2 nd rear pillars 22 standing at substantially the same vehicle front-rear position as the 1 st lateral frame 43 are connected by the 2 nd lateral frame 44, the rigidity of the entire vehicle body rear portion against load input from the 1 st lateral frame 43 to the left and right side frame structures 14 can be effectively improved.

Since the load input from the battery cell 6 can be dispersed to the rear surface skeleton structure 15 and the left and right side surface angle measurement structures to be supported, the support rigidity of the battery cell 6 as a heavy object can be ensured.

Since the front portion of the battery unit 6 is fixed to the 2 nd horizontal frame 44, the support state of the battery unit 6 can be stabilized.

Further, since the opening lower edge frame 41 and the rear end cross member 13 are coupled by the upper and lower coupling frames 42 and the reinforcing member 32, the rigidity of the rear surface of the vehicle body can be further improved.

Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and it goes without saying that modifications can be made as appropriate without departing from the scope of the present invention. That is, it is needless to say that other embodiments, examples, application techniques, and the like, which are completed by those skilled in the art based on the present embodiment, are all included in the scope of the present invention.

For example, although the battery unit 6 is described as an example of the vehicle-mounted component in the above embodiment, a vehicle-mounted component other than the battery unit 6 may be mounted. The number of the front and rear connecting frames 45 is not limited to 2, and may be 3 or more.

The present application is based on the Japanese patent application No. 2020-130872 (filed on 7/31/2020), the contents of which are hereby incorporated by reference.

Industrial applicability

The present invention can be applied to a vehicle having a vehicle body frame structure.

Description of the reference numerals

1: vehicle with a steering wheel

2: vehicle body frame

3: vehicle body frame structure

4: carriage body

5: battery container

6: battery unit (vehicle mounted component)

9: rear surface opening

10: side beam

11: cross beam

12: rear side member

13: rear end beam

14: side skeleton structure

15: rear surface skeleton structure

16: ceiling surface framework structure

20: rear end post

21: no. 1 rear pillar

22: no. 2 rear column (middle column)

23: lower frame

22: middle frame

25: upper side frame

29: wheel cover

30: rear fender

31: tyre for vehicle wheels

32: reinforcing member (Upper and lower connecting member)

40: two end frames on back surface

41: opening lower edge frame

42: upper and lower connecting frame (Upper and lower connecting component)

43: no. 1 transverse frame

44: 2 nd horizontal frame

45: front and rear connecting frame

Claims (8)

1. A vehicle body frame structure of a vehicle in which rear end portions of left and right side members extending in a vehicle front-rear direction on both sides in a vehicle width direction are supported from below by a vehicle body frame connected by a rear end cross member extending in the vehicle width direction, vehicle body side surfaces are constituted by left and right side frame structures, and a vehicle body rear surface is constituted by a rear surface frame structure;

the vehicle body skeleton structure is characterized by comprising:

left and right rear end pillars erected on both sides in the vehicle width direction of a vehicle rear end where the side face skeleton structure and the rear face skeleton structure intersect, and extending in the up-down direction,

an open lower edge frame extending in the vehicle width direction above the rear end cross member so as to define a lower edge of the rear surface opening, the open lower edge frame connecting the left and right rear end pillars to constitute the rear surface skeleton structure,

a 1 st lateral frame extending in the vehicle width direction in front of the open lower edge frame in the vehicle, and connecting the left and right side face skeleton structures, an

And left and right front and rear connecting frames that are arranged to be spaced apart in the vehicle width direction, extend in the vehicle front and rear direction, and connect the opening lower edge frame and the 1 st horizontal frame.

2. The vehicle body frame structure of a vehicle according to claim 1,

the vehicle body framework structure comprises 1 or more than one 2 nd transverse frame, wherein the 1 or more than one 2 nd transverse frame extend along the vehicle width direction above the 1 st transverse frame and are connected with the left and right side framework structures.

3. The vehicle body frame structure of a vehicle according to claim 2,

the side frame structure has left and right center pillars erected at substantially the same vehicle front-rear position as the 1 st cross frame;

the 2 nd horizontal frame connects the left and right center pillars.

4. The vehicle body frame structure of a vehicle according to any one of claims 1 to 3,

vehicle-mounted components are mounted on the left and right front and rear connecting frames.

5. The vehicle body frame structure of a vehicle according to claim 2 or 3,

vehicle-mounted components are placed on the left and right front and rear connecting frames;

the mounted vehicle-mounted component is fixed to the 2 nd horizontal frame.

6. The vehicle body frame structure of a vehicle according to any one of claims 1 to 5,

the vehicle body skeleton structure includes 1 or more up-down coupling members, and the 1 or more up-down coupling members are arranged between the rear end cross member and the opening lower edge frame and couple the rear end cross member and the opening lower edge frame.

7. The vehicle body frame structure of a vehicle according to any one of claims 1 to 6,

the rear surface opening is defined by:

the opening lower edge frame extends in the vehicle width direction below the center of the vertical height of the rear surface of the vehicle body,

the left and right rear end posts, and

a rear panel of a roof face skeleton structure constituting a roof face of a vehicle body.

8. The vehicle body frame structure of claim 7,

the rear end panel extends in the vehicle width direction, and both ends in the vehicle width direction thereof are fixed to and supported by the upper end portions of the left and right rear end pillars and the upper end portion of the 1 st rear pillar.

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