JP2007161075A - Car body rear part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reinforce a recessed part so as to protect a car part stored in the recessed part of a rear floor pan and to prevent flying of the car part to a baggage compartment from the inside of the recessed part in rear collision. <P>SOLUTION: This car body rear part structure is furnished with a pair of right and left rear side frames 10, 10 arranged in the longitudinal direction on a car body rear part, a rear floor pan 20 supported between a pair of the rear side frames 10, 10 and having the recessed part 22 bulged downward, a straddling provided member 11 to connect the rear floor pans in the circumference of the recessed part by straddling the recessed part 22 and the car part 60 stored in the recessed part 22, and the straddling provided member 11 is arranged so as to be overlapped with the car part 60 as seen at a flat level. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automobile body rear structure.

  2. Description of the Related Art As a rear body structure of an automobile, a structure in which a recess for accommodating a spare tire is formed in a rear floor pan that forms the bottom of a cargo space is widely known.

  The rear portion of the vehicle body including the spare tire accommodating portion is generally configured to be crushable at the time of a rear collision for the purpose of minimizing deformation of the passenger compartment.

  On the other hand, a configuration in which a battery is arranged behind a vehicle such as a luggage compartment is increasing (see, for example, Patent Document 1). In this case, it is necessary to consider the influence of a rear collision on the battery. There is.

JP 2005-93299 A

  In recent years, spare tires have been abolished in order to reduce vehicle weight and increase trunk capacity, and so-called spare tireless systems are being developed that are instead equipped with compact puncture repair kits. In a spare tireless vehicle, vehicle parts such as a battery can be accommodated in a recess of a rear floor pan, which has been conventionally used as a spare tire accommodating portion.

  Therefore, in an automobile in which vehicle parts such as a battery are arranged in the recess of the rear floor pan instead of a spare tire, it is necessary to prevent the vehicle parts from jumping out of the recess during a rear collision.

  A vehicle body rear portion structure according to one aspect of the present invention includes a rear floor having a pair of left and right rear side frames disposed in the front-rear direction at a rear portion of the vehicle body, and a recess that is supported between the pair of rear side frames and bulges downward. A pan, a straddling member that connects the rear floor pans around the recess, and a vehicle part that is housed in the recess, the straddling member overlapping the vehicle part in plan view It arrange | positions so that it may carry out.

  According to this configuration, the behavior of the vehicle component that is about to jump out forward and upward due to the deformation of the concave portion at the time of a rear collision can be prevented by the straddling member.

  According to a preferred embodiment of the present invention, it is preferable that the vehicle component is suspended and supported by the straddling member.

  This configuration has a great advantage over the case where the vehicle component is installed directly on the rear floor pan in the recess. That is, when the vehicle part is installed directly on the rear floor pan in the recess, if the rear floor pan is deformed at the time of a rear collision or the like, the vehicle part is directly affected by the deformation. There is a risk of causing a behavior of jumping forward and upward. In order to prevent this, it was necessary to take measures such as improving the strength of the rear floor pan. On the other hand, according to the above-described configuration, the vehicle parts do not receive the front-up behavior due to the deformation of the rear floor pan. Therefore, it is not necessary to improve the strength of the rear floor pan. In addition, when the vehicle part is installed directly on the rear floor pan in the recess, it is necessary to provide a dedicated member for fixing the vehicle part to the rear floor pan. Since there is no need to provide a dedicated member on the rear floor pan, it becomes possible to share the body with another grade vehicle that does not have vehicle parts installed in the recess.

  According to a preferred embodiment of the present invention, the vehicle component is a battery, and the power harness connected to the battery is preferably routed outside the recess along the straddling member.

  According to this configuration, the power harness is protected when loading / unloading the luggage into / from the cargo floor or the recess. In addition, the harness length can be shortened compared to the case where the power harness is wound on the rear floor pan.

  According to a preferred embodiment of the present invention, it further comprises a concave front cross member extending in the vehicle width direction at a front position of the concave, and the straddling member is a vertical member extending in the longitudinal direction of the vehicle body, It is preferable that the front end portion is fastened to the concave front cross member.

  According to this configuration, the impact load at the time of a rear collision is absorbed not only by the rear side frame but also by the deformation of the vertical member that vertically cuts the recess, so that deformation near the passenger compartment can be reduced.

  According to a preferred embodiment of the present invention, the straddling member is preferably a lateral member bridged in the vehicle width direction between the pair of rear side frames at a position above the recess.

  According to a preferred embodiment of the present invention, it further comprises a horizontal member bridged in the vehicle width direction between the pair of rear side frames at a position above the recess, and the vertical member is coupled to the horizontal member. preferable.

  According to this configuration, at least the vertical member and the horizontal member form a T-shaped frame in plan view, or, for example, a pair of rear side frames, a concave front cross member, a rear end cross member, a vertical member, The horizontal member forms a U-shaped frame in a plan view, thereby further increasing the rigidity of the rear part of the vehicle body.

  According to the present invention, in an automobile in which a vehicle component such as a battery is arranged in the recess of the rear floor pan instead of a spare tire, the vehicle component can be prevented from jumping out of the recess during a rear collision.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following embodiment, It shows only the specific example advantageous for implementation of this invention. In addition, not all combinations of features described in the following embodiments are indispensable as means for solving the problems of the present invention.

  FIG. 1 is a rear view of a vehicle body of an automobile A adopting a vehicle body rear structure according to an embodiment of the present invention, FIG. 2 is a view showing the inside of a luggage compartment space at the rear of the automobile A, and FIG. It is a principal part exploded perspective view of a vehicle body rear part structure.

  The automobile A is, for example, a hatchback car, and has an opening 1 that is opened and closed by a lid (rear hatch) 5 as shown in FIG. A cargo space at the rear of the vehicle body is formed in the opening 1 and is configured to be accessible from the outside by opening and closing the lid 5. The opening 1 has a substantially square shape by a roof panel 2, a pair of left and right rear pillars 3 and 3 that support the roof panel 2, and a rear end cross member 30 having both ends in the vehicle width direction connected to the lower ends of the rear pillars 3 and 3. It is stipulated in. Side panel outers 4, 4 are coupled to the side portions of the rear pillars 3, 3. A striker S that engages with a latch (not shown) of the lid 5 when the opening 1 is closed is provided at the center of the rear end cross member 30 in the vehicle width direction.

  As shown in FIG. 2, a rear floor pan 20 that forms the bottom of the cargo space is laid in the cargo space. The rear floor pan 20 is joined to the upper surfaces of a pair of left and right rear side frames 10 and 10 as a skeleton member as shown in FIG. 3, and is thereby supported between the rear side frames 10-10. As shown in FIG. 2, the side portion of the rear floor pan 20 is cut out in conformity with the wheel house inner 7 and coupled to the wheel house inner 7. Further, the rear end portion of the rear floor pan 20 is coupled to the rear end cross member 30.

  The rear end cross member 30 includes a first panel 31 that forms a rear surface and a lower surface of the rear end cross member 30 and a second panel 32 that forms a front surface and an upper surface of the rear end cross member 30. In the lower part of the rear end cross member 30, the first panel 31 and the second panel 32 are overlapped, and in the upper part, a closed section extending in the vehicle width direction by the first panel 31 and the second panel 32. Part 33 is configured.

  Further, as shown in FIG. 3, crash cans 41, 41 are attached to the rear end portions 10 a, 10 a of the pair of rear side frames 10, 10 via the lower portion of the rear end cross member 30. As shown in FIG. 1, fixing portions 31 a and 31 a to which the crash cans 41 and 41 are fixed are formed on the left and right ends of the rear panel 31, respectively. Bolts and the like (not shown) are erected on the fixing portions 31a and 31a, and the crash cans 41 and 41 are fixed thereto. The crash cans 41 and 41 function as energy absorbing members that absorb collision energy, and also function as attachment members for the rear bumper reinforcement 40 shown in FIG. The rear bumper reinforcement 40 functions as a reinforcing member of the rear bumper face 50 shown in FIG. To the rear end portions 10a, 10a of the pair of rear side frames 10, 10.

  A recess 22 is formed in the rear floor pan 20. The concave portion 22 has been conventionally used as a spare tire storage portion. However, in the present embodiment, the automobile A is a spare tireless car, and another vehicle part that replaces the spare tire is accommodated in the recess 22.

  As a vehicle component suitable for storage in the recess 22, for example, a battery is conceivable. Recently, when the engine is restarted, the amount of voltage supplied to the in-vehicle device tends to be insufficient, and it is considered to install a sub-battery for the purpose of supplementing this or for emergency purposes. On the other hand, there is a problem where such a sub-battery should be arranged (the invention described in Patent Document 1 described above is also made for the same problem). For example, it may be arranged under the passenger seat, but in that case, it is essential to reduce the size of the sub-battery while maintaining a sufficient battery capacity for starting the engine during emergency. However, this is not easy in terms of cost. In this regard, it can be said that the concave portion 22 that has become an empty space when the automobile A is a spare tireless car is suitable as a sub battery storage place. Therefore, in the present embodiment, as shown in FIG. 2, a case where a sub-battery (hereinafter simply referred to as “battery”) 60 is stored in the recess 22 will be described. In addition to the battery, the vehicle parts that can be stored in the recess 22 include a capacitor, a control unit for a car navigation device, an audio device, a puncture repair kit, and the like.

  Now, when the spare tire is not housed in the recess 22 and the battery 60 is housed instead, it is necessary to prevent the battery from jumping out of the recess 22 particularly in the case of a rear collision. In this embodiment, for this purpose, as shown in FIGS. 2 and 3, a vertical member (stranding member) 11 that vertically cuts the recess 22 is provided. Further, by providing such a vertical member, for example, an impact load at the time of a rear collision is absorbed not only by the rear side frames 10 and 10 but also by the deformation of the vertical member 11, so that the deformation near the passenger compartment can be reduced. it can.

  In the present embodiment, the vertical member 11 is configured to have a closed cross section extending in the longitudinal direction of the vehicle body. 4 is a cross-sectional view taken along the line B-B in FIG. 3, and shows a cross-sectional shape of the vertical member 11 in a front view. As shown in the drawing, the central part of the longitudinal member 11 in the longitudinal direction of the vehicle body is a flat plate-like lower member 11a, and the sectional shape of the front view is formed in a hat shape, and the left and right flange portions are the upper surfaces of the left and right ends of the lower member 11a. The upper member 11b is joined to each other, and a closed cross section 11c is formed by both of them. The vertical member 11 ensures the rigidity with respect to bending by this structure.

  Moreover, it is preferable that the vertical member 11 is provided so as to connect the vehicle bodies before and after the recess 22 across the vehicle body longitudinal direction. Therefore, in the present embodiment, as shown by a broken line in FIG. 2, a recessed front cross member 12 that extends in the vehicle width direction at the front position of the recessed portion 22 and is joined to the lower surface of the rear floor pan 20 is provided. A specific configuration example of the concave front cross member 12 is shown in FIG. As shown in FIG. 3, the rear end side central portion 12 a of the recess front cross member 12 is cut out in accordance with the shape of the front end side of the recess 22 and is coupled to the front wall portion of the recess 22. Further, the left and right end portions 12b, 12b of the concave front cross member 12 are formed in accordance with a cross-sectional shape in a front view formed in a reverse hat shape of the rear side frames 10, 10, and are joined to the lower surfaces of the rear side frames 10, 10. The Further, flanges 12 c and 12 d that are joined to the lower surface of the rear floor pan 20 are formed at the front end portion of the concave front cross member 12.

  The front end portion of the vertical member 11 is fastened and fixed to the concave front cross member 12 via the rear floor pan 20 with, for example, bolts 35. According to this configuration, for example, the impact load input to the vertical member 11 at the time of a rear collision can be received by the strong concave front cross member 12, and the rigidity of the rear portion of the vehicle body can be increased. On the other hand, the rear end of the vertical member 11 is fastened and fixed to the second panel 32 of the rear end cross member 30 with, for example, bolts 36. In this way, the impact load at the time of a rear collision is reliably input to the vertical member 11 through the rear end cross member 30.

  According to the above structure, the pair of rear side frames 10, 10, the concave front cross member 12, the rear end cross member 30, and the vertical member 11, as shown in FIG. This makes it possible to improve the rigidity of the rear part of the vehicle body.

  Next, how the battery 60 is attached to the recess 22 will be described.

  FIG. 5 shows an example in which the battery 60 is fixed to the bottom of the recess 22. First, the base plate 80 on which the battery 60 is placed is fixed to the bottom of the recess 22. For example, stud bolts 81 are erected at positions corresponding to the four corners of the base plate 80 at the bottom of the recess 22, and bolt holes through which the stud bolts 81 pass are provided at the four corners of the base plate 80. . Accordingly, the base plate 80 is placed on the bottom of the recess 22 so that the stud bolts 81 pass through the bolt holes at the four corners, and fastened and fixed by the nuts 82 respectively.

  The battery 60 is placed on the base plate 80, and a bracket 83 that spans the upper part of the battery 60 and a stay 84 that has a lower end locked to the vehicle body side, and a wing nut provided on a bolt portion provided at the upper end of the stay 84. It is fixed by fastening 85. For example, as shown in the drawing, the lower end of the stay 84 is bent in a J-shape, and is inserted into a locking hole provided at the center of the front and rear ends of the base plate 80 to be locked to the vehicle body side.

  In this way, the battery 60 can be fixed to the bottom of the recess 22.

  Alternatively, the battery 60 may be suspended and supported by the vertical member 11 instead of being fixed to the bottom of the recess 22 as described above. FIG. 6 is a view showing a specific example of the battery suspension support by the vertical member 11 in the present embodiment, and FIG. 7 is an exploded view thereof. The lower part of the battery 60 is stored in a storage case 62. Flange 63,63 which has bolt hole 63a, 63a is provided in the side wall part of the right-and-left both sides of this storage case 62, respectively. 64 is a suspension bracket formed so as to match the shape of the upper surface of the vertical member 11, and flanges 65, 65 having bolt holes 65a, 65a are extended on the left and right sides thereof. The distance between the bolt holes 63a-63a provided in the flanges 63, 63 of the storage case 62 and the distance between the bolt holes 65a-65a provided in the flanges 65, 65 of the suspension bracket 64 are substantially equal. .

  Then, the central portion of the upper surface of the battery 60 stored in the storage case 62 is brought into contact with the lower surface of the vertical member 11, and the suspension bracket 64 is brought into contact with the upper surface thereof. In this state, the battery 60 is bent into a J-shape. The stays 66, 66 having the lower ends 66a, 66a are inserted into the bolt holes 63a, 63a of the storage case 62 and the bolt holes 65a, 65a of the suspension bracket 64, and fastened and fixed by the wing nuts 67, 67, respectively. Thus, as shown in FIG. 6, the battery 60 is suspended and supported by the vertical member 11 while being separated from the bottom of the recess 22 by a distance L.

  According to such a configuration, since the battery 60 is separated from the bottom portion of the recess 22, the battery 60 is not subjected to the forward upward movement behavior of the battery 60 due to the deformation of the rear floor pan 20 at the time of a rear collision. Therefore, it is not necessary to improve the strength of the rear floor pan 20. In this case, it is not necessary to provide a dedicated member such as a stud bolt on the rear floor pan 20. As a result, the body can be shared with another grade vehicle in which the battery 60 is not installed in the recess 22.

  Incidentally, power harnesses 61 and 61 are connected to the battery 60. How should the power harnesses 61, 61 be routed? If this is simply routed on the rear floor pan 20, it may interfere with loading / unloading of luggage into / from the cargo floor or the recess 22, and there is a risk of lack of protection of the power harness. In this embodiment, therefore, the power harnesses 61 and 61 are routed along the vertical member 11 to the outside of the recess 22 regardless of whether the configuration shown in FIG. 5 or the configuration shown in FIG. To do. Specifically, as shown in the enlarged view of FIG. 7, the lower member 11a of the vertical member 11 is provided with a power harness insertion hole 11d, and the power harnesses 61 and 61 are constituted by the lower member 11a and the upper member 11b. It passes through the closed cross-section portion 11 c and is routed to the outside of the recess 22. This is also shown in FIG. By doing in this way, the power supply harnesses 61 and 61 are protected at the time of loading / unloading of the luggage to / from the luggage compartment floor or the recess 22. In addition, the harness length can be reduced as compared with the case where the power harnesses 61 and 61 are wound on the rear floor pan 20.

  FIG. 8 is a top view of the main part of FIG. As clearly shown in this figure, the battery 60 is disposed at a position overlapping the vertical member 11 in plan view. According to such an arrangement, the vertical member 11 can prevent the battery from jumping forward and upward due to the deformation of the recess 22 at the time of a rear collision.

  FIG. 9 is a cross-sectional view taken along the line AA in FIG. 2, and shows a cross-sectional structure along a line connecting the fastening portions 35-36 at the front and rear ends of the vertical member 11. Here, it is assumed that the battery 60 is fixed to the bottom of the recess 22 as shown in FIG. In FIG. 9, the rear end portion (lower end portion) of the concave front cross member 12 is a portion related to the rear end side central portion 12 a that is cut out in accordance with the shape of the front end side of the concave portion 22. It is joined to the wall 22a. Further, the front end side flange 12c of the concave front cross member 12 is joined to the lower surface of the rear floor pan 20 slightly forward from the front end of the front wall portion 22, and at this position, the front end portion of the vertical member 11 connects the rear floor pan 20 to the lower end. And the concave front cross member 12 is fastened by the bolt 35. On the other hand, the rear end portion of the vertical member 11 is fastened to the second member 32 constituting the upper surface of the rear end cross member 30 by a bolt 36.

  Next, the luggage compartment board in the present embodiment will be described.

  Generally, a luggage compartment board that forms a floor portion of the luggage compartment is laid in the luggage compartment. As shown in FIG. 10, the luggage compartment board 70 is placed so as to cover the upper part of the rear floor pan 20 shown in FIG. 2, thereby providing a flat cargo compartment floor surface. In addition, the luggage compartment board 70 also functions as an upper lid that can be opened and closed with respect to the recess 22. However, description of the opening / closing mechanism is omitted here.

  FIG. 11 is a cross-sectional view taken along the line CC of FIG. 10 and shows a cross-sectional shape of the luggage compartment board 70 at a portion where the vertical member 11 and the recess 22 are provided below. The vertical member 11 in the present embodiment extends substantially at the height position of the rear floor pan 20. Specifically, as shown in FIG. 9, the upper member 11 b of the vertical member 11 is higher than the height of the rear floor pan 20. It extends to a slightly higher position. Therefore, as shown in FIG. 11, a groove 71 is formed on the lower surface of the luggage compartment board 70 along the shape of the upper member 11b.

  Thus, the load of the load applied to the luggage compartment board 70 in the present embodiment is supported by the vertical member 11. In the conventional structure where there is no vertical member, it is necessary to support the load of the load only by the luggage board, so it is necessary to increase the rigidity of the luggage board itself, resulting in a complicated structure and an increase in weight. However, according to the present embodiment, there is no such concern.

(Other embodiments)
FIG. 12 shows a configuration in which, for example, a lateral member 13 that is bridged in the vehicle width direction is disposed between the pair of rear side frames 10 and 10 at a position above the recess 22. Both ends of the horizontal member 13 are joined to the rear side frame 10 via the rear floor pan 20. Further, an example of processing at the intersection of the horizontal member 13 and the vertical member 11 is shown in an enlarged view in FIG. That is, the portion of the vertical member 11 that intersects the horizontal member 13 is formed in a shape that matches the shape of the horizontal member 13, and both are fastened and fixed by, for example, the bolt 131.

  FIG. 13 is a cross-sectional view taken along the line E-E in FIG. 12, showing an example of a joining structure of the lateral member 13 to the rear side frames 10 and 10. As shown in the figure, in this example, the rear side frames 10 and 10 are formed in a reverse hat shape in cross section when viewed from the front, and welt nuts 132 and 132 are provided below the bolt holes in the outer flange portion. Yes. Then, both end portions of the horizontal member 13 are fastened and fixed to the rear side frames 10 and 10 by bolts 133 and 133 together with the rear floor pan 20.

  With the above configuration, at least the vertical member 11 and the horizontal member 13 form a T-shaped frame in plan view. Alternatively, for example, a pair of rear side frames 10, 10, a recess front cross member 12, a rear end cross member 30, a vertical member 11, and a horizontal member 13, as shown in FIG. This makes it possible to further increase the rigidity of the rear part of the vehicle body.

  If the rigidity of the rear part of the vehicle body can be secured, only the horizontal member 13 may be provided without providing the vertical member 11. In that case, it is also possible to arrange the lateral member 13 as a straddling member in the vicinity of the central portion of the recess 22 and to suspend and support the battery with the configuration as described above.

Moreover, in the above-mentioned embodiment, although the vertical member 11 comprised the closed cross section with the lower member 11a and the upper member 11b, the shape of the vertical member 11 is not restricted to this. For example, the vertical member 11 having a shape as shown in FIG. 14 may be used. As shown in FIG. 15 which is a DD cross-sectional view of FIG. 14, this is a cross-sectional shape of the front view formed in an inverted hat shape, contrary to the above-described embodiment. Further, by forming the bead 11e at the center thereof, it is possible to ensure the rigidity against bending without forming a closed section as in the above-described embodiment.
FIG. 16 shows a cross-sectional view corresponding to FIG. 9 when the vertical member 11 shown in FIG. 14 is used.

  FIG. 17 shows another modified example in which a second concave front cross member 24 having the same shape as the concave front cross member 12 is disposed so as to face the concave front cross member 12 with the rear floor pan 20 interposed therebetween. The front cross member 12 and the second recessed front cross member 24 are joined together with the rear floor pan 20. Both ends of the second recess front cross member 24 are coupled to the wheel house inner 7. Further, the horizontal member 13 may be provided so as to bridge the vicinity of the central portion of the concave portion 22 as in FIG. 12, but in this example, the horizontal member 13 is a second panel constituting the front surface of the rear end cross member 30. 32 is provided along. As in FIG. 12, both end portions of the horizontal member 13 are joined to the rear side frame 10 via the rear floor pan 20.

  Then, for example, the vertical member 11 as shown in FIG. 14 is used, and its front end is fastened and fixed to the second recess cross member 24 with bolts 35, and its rear end is fastened and fixed to the horizontal member 13 with bolts 36. FIG. 18 is a cross-sectional view corresponding to FIG. 9 in the case of this configuration. According to the figure, it will be clearly understood that the recessed front cross member 12 and the second recessed front cross member 24 form a closed cross section with the rear floor pan 20 interposed therebetween. According to this configuration, the impact load input to the vertical member 11 at the time of a rear collision can be received by the concave front cross member 12 and the second concave front cross member 24, and the rigidity of the rear part of the vehicle body can be further enhanced. it can.

It is a rear view of the vehicle body of the car which adopted the body rear part structure concerning the embodiment of the present invention. It is a figure which shows the inside of the luggage compartment space of the rear part of the motor vehicle shown in FIG. It is a principal part disassembled perspective view of the vehicle body rear part structure in embodiment of this invention. It is BB sectional drawing of FIG. It is a figure which shows the example which fixed the battery in embodiment of this invention to the rear floor pan recessed part. It is a figure which shows the example which suspended and supported the battery in embodiment of this invention to the vertical member. FIG. 7 is an exploded view of FIG. 6. It is a principal part top view of FIG. It is AA sectional drawing of FIG. It is a figure which shows the state which laid the luggage compartment board in the luggage compartment of the rear part of the motor vehicle shown in FIG. It is CC sectional drawing of FIG. It is a figure which shows the inside of the luggage compartment space of the rear part of the motor vehicle shown in FIG. 1, Comprising: It is a figure which shows the modification which added the horizontal member. It is EE sectional drawing of FIG. It is a figure which shows the modification of a vertical member. It is DD sectional drawing of FIG. It is sectional drawing corresponding to FIG. 9 at the time of using the vertical member of FIG. It is a figure which shows the inside of the luggage compartment space of the rear part of the motor vehicle shown in FIG. 1, Comprising: It is a figure which shows another modification which added the 2nd recessed part front cross member. It is sectional drawing corresponding to FIG. 5 at the time of arrange | positioning the 2nd recessed part front cross member of FIG.

Explanation of symbols

A: automobile S: striker 1: opening 3: rear pillar 5: lid (rear hatch)
10: Rear side frame 10a: Rear end portion of rear side frame 11: Vertical member 12: Recess front cross member 13: Horizontal member 20: Rear floor pan 22: Recess 24: Second recess front cross member 30: Rear end cross member 40: Rear bumper rain Force 41: Crash can 50: Rear bumper face 60: Battery 61: Power harness 62: Storage case 64: Suspension bracket 66: Stay 70: Cargo board 80: Base plate 83: Bracket 84: Stay

Claims (6)

A pair of left and right rear side frames disposed in the front-rear direction at the rear of the vehicle body;
A rear floor pan supported between the pair of rear side frames and having a recess bulging downward;
A straddling member that connects the rear floor pans around the concave portion across the concave portion,
Vehicle parts housed in the recesses;
With
The vehicle body rear portion structure is characterized in that the straddling member is disposed so as to overlap the vehicle part in a plan view.   The vehicle body rear structure according to claim 1, wherein the vehicle part is suspended and supported by the straddling member. The vehicle component is a battery,
The vehicle body rear part structure according to claim 1, wherein a power harness connected to the battery is routed to the outside of the recess along the straddling member. A recess front cross member extending in the vehicle width direction at a front position of the recess;
The vehicle body rear portion according to any one of claims 1 to 3, wherein the straddling member is a vertical member extending in the longitudinal direction of the vehicle body, and a front end portion thereof is fastened to the concave front cross member. Construction.   The vehicle body rear part structure according to any one of claims 1 to 3, wherein the straddling member is a lateral member bridged in the vehicle width direction between the pair of rear side frames at a position above the recess. . A lateral member bridged in the vehicle width direction between the pair of rear side frames at a position above the recess;
The vehicle body rear structure according to claim 4, wherein the vertical member is coupled to the horizontal member.

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