JP2006335096A - Rear vehicle body structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear vehicle body structure of a vehicle which stores a tire for mounting in an upright state by utilizing a sub trunk part, and can effectively utilize a trunk board member to be removed while reducing the movement of the tire for mounting to the front side of the vehicle in the rear vehicle body structure of the vehicle storing the tire for mounting in a baggage room of the rear part of the vehicle. <P>SOLUTION: The load of the front side of the vehicle is applied to the tire X for mounting by locking the tire X for mounting on the trunk board 8 which is extended and erected in the baggage room T as a "vertical wall". Even if the tire X for mounting of heavy load is moved to the front side of the vehicle, the existence of the trunk board 8 can prevent the load from directly applying to the seat backs 21, 21 of the rear seat 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rear body structure of a vehicle, and more particularly to a rear body structure of a vehicle that stores a tire (hereinafter referred to as a mounted tire) that has been mounted on the vehicle in an emergency such as a tire puncture.

  Usually, a tire mounted on a vehicle is a tire larger in size than an emergency tire (hereinafter referred to as a spare tire) in order to improve the running performance, ride comfort, and appearance of the vehicle. Many.

  When such a large tire is reassembled with a spare tire in an emergency such as a puncture and stored in the luggage compartment, it has been a problem how to store the tire due to the difference in size from the spare tire. Yes.

  The following Patent Document 1 is known for storing tires of different sizes in a luggage compartment at the rear of the vehicle.

  In this Patent Document 1, when fixing spare tires of different sizes to the rear part of the wheel house on the side wall of the luggage compartment, it is configured to adjust the mounting position in the vertical direction. Similarly, what is stored is disclosed.

  Further, in the normal state, the spare tire itself is mounted outside the vehicle at the lower part of the floor, and in an emergency, as shown in FIG. There is also known a structure in which a recess recessed one step from the floor surface is used and stood in the vehicle width direction. In this structure, the belt member 503 is fastened to the wheel portion 502 and is engaged and fixed to the locking hook 504 in the cargo compartment, so that the storage state of the mounted tire 500 is maintained.

JP 2005-59718 A

  By the way, when a large and heavy tire is stored in the luggage compartment at the rear of the vehicle, the heavy tire is placed on the front side of the vehicle when the vehicle is suddenly braked or subjected to a rear impact. For example, when there is a seat on the front side thereof, the seat may be deformed.

  As described above, in the case where the mounted tire is stood and stored using the sub-trunk part, only the lower part of the tire is supported by the sub-trunk part, and the upper part is not supported at all. There is a high possibility that the sheet is likely to be deformed.

  In addition, the sub-trunk portion is normally covered with a trunk board member. However, when the mounted tire is stored, how to install the removed trunk board member in the vehicle is also a problem.

  Therefore, the present invention uses a sub-trunk part to store the mounted tire in a rear body structure in which the mounted tire is stored in the luggage compartment at the rear of the vehicle, and the mounted tire moves to the front side of the vehicle. It is another object of the present invention to provide a rear vehicle body structure that can effectively use the removed trunk board member while mitigating such movement.

  The rear body structure of the vehicle according to the present invention includes a back door at the rear end of the vehicle, a cargo compartment floor extending forward of the vehicle from the back door, and a bottom surface lower than the floor surface in the cargo compartment floor. A vehicle rear body structure comprising a sub-trunk portion extending in the width direction and a trunk board member covering the sub-trunk portion, wherein the removed trunk board member is mounted on the cargo compartment floor in front of the sub-trunk portion. A trunk board support portion that stands and holds so as to extend in the width direction, and the trunk board member holds the tire that is stood and stored so as to extend in the vehicle width direction on the sub trunk portion. A part is provided.

  According to the above configuration, the removed trunk board member is held upright by the trunk board support portion so as to extend in the vehicle width direction on the cargo floor, and the trunk board member has the locking portion. Thus, the tire is integrated with the tire stored upright so as to extend to the sub-trunk portion.

  For this reason, it is not necessary to remove the tire from the sub-trunk part, while reducing the tire height when storing the tire, which is an advantage of the storage structure that uses the sub-trunk part to store the tire, and enabling low-center-of-gravity storage. The tire can be locked by effectively using the trunk board member.

  The tire at the time of storage may be held in its stored state by tightening the wheel portion with a belt member or the like and engaging and fixing it with a vehicle body side member (for example, a locking hook in the cargo compartment). .

  Further, the depth of the sub-trunk portion is not particularly limited, but the deeper one is desirable because the deeper one is because the tire height is lowered and the center of gravity of the tire is low and stable.

  In one embodiment of this invention, the said latching | locking part is a tire holding part provided so that the tire external shape might be met.

  According to the said structure, a trunk board member will be more integrated with a tire because a trunk board member hold | maintains a tire external shape by a tire holding part.

  For this reason, the unstable movement of the tire in the vehicle width direction, which is easy to roll, can be suppressed by the trunk board member.

  Therefore, rattling of the tires stored in the sub-trunk portion can be suppressed, and abnormal noise such as vibration can be prevented while the vehicle is running.

  In one embodiment of the present invention, the locking portion is a wheel fixing portion that fastens and fixes the wheel portion of the tire.

  According to the above configuration, the wheel portion of the tire is fastened and fixed to the trunk board member by the wheel fixing portion.

  For this reason, a trunk board member can be fixed to the strongest wheel part in a tire, and a trunk board member and a tire can be integrated certainly.

  Therefore, the movement of the tire stored in the sub trunk portion can be reliably suppressed, and the tire can be reliably supported by the trunk board member.

  In one embodiment of the present invention, the trunk boat member is provided with inner wall engaging portions that engage with both side walls of the cargo compartment and prevent the trunk board member from tilting forward and backward of the vehicle at both ends in the vehicle width direction. It is.

  According to the said structure, a trunk board member is supported by the both-sides wall in a cargo compartment by a side wall engaging part, and it prevents that a trunk board member tilts in the vehicle front-back direction.

  For this reason, tilting of the trunk board member in the vehicle front-rear direction is suppressed, and tilting of the tire in the vehicle front-rear direction can be suppressed.

  Therefore, the load in the vehicle front-rear direction of the tire stored upright in the sub-trunk portion can be supported by effectively using the trunk board member.

  In one embodiment of the present invention, the upper portion of the trunk board member in the standing state is locked to the rear end portion of the tonneau board extending in the horizontal direction forward of the vehicle.

  According to the said structure, the rear-end part of the tonneau board extended in a horizontal direction supports the upper part of the trunk board member of the standing state.

  For this reason, the tilt of the trunk board member on the vehicle front side is surely suppressed by the tonneau board.

  Therefore, the trunk board member can be more stably stood and held, and the load from the tire to the front side of the vehicle can be reliably supported.

  In one embodiment of the present invention, a deeper tire holding recess is formed in a part of the bottom surface of the sub-trunk portion.

  According to the above configuration, the tire is stored and held in the tire holding recess that is deeper than the bottom surface of the sub-trunk portion.

  For this reason, the tire can be supported at a lower position without setting the entire sub trunk portion deep.

  Therefore, the tire can be stored at a lower position without deteriorating the layout of the lower floor below the sub-trunk portion, and the tire height can be reduced and the center of gravity can be stored.

  In one embodiment of the present invention, a pair of tire holding ribs that are spaced apart in the vehicle width direction are erected on the bottom surface of the sub-trunk portion.

  According to the above configuration, since the tire holding ribs are erected, both sides of the lower portion of the tire are supported by the pair of tire holding ribs.

  For this reason, the tire becomes difficult to move in the vehicle width direction (it becomes difficult to roll), and the movement of the tire in the sub trunk portion is restricted.

  Therefore, the movement of the tire in the sub-trunk is surely restricted, and the tire can be stored without rattling.

  In one embodiment of the present invention, a seat provided with a left and right foldable seat back is installed on the vehicle front side of the cargo floor.

  According to the said structure, the sheet | seat installed in front of a luggage compartment floor is made into the sheet | seat provided with the right-and-left division foldable seat back.

  For this reason, even if the stored tire moves from the rear of the vehicle to the seat back (front of the vehicle), the presence of the trunk board member prevents the tire from directly interfering with the seat back, so the seat back is divided into left and right It can consist of a retractable seat.

  In other words, since the tire does not directly interfere with the seat back, even if it is a left and right split-foldable seat back that has a slightly low rigidity with respect to the load from the rear of the vehicle, the load is dispersed or relaxed and the seat back is deformed. It does not occur.

  Therefore, while installing a seat with a left and right foldable seat back to improve the cargo compartment function of the vehicle, there is a problem of deformation of the seat back when the tire is stood and stored in the sub trunk part. It can be avoided.

  According to the present invention, the trunk that has been removed and made unnecessary while enabling the reduction of the tire height during storage of the tire and the storage of the low center of gravity, which are the advantages of the storage structure of storing the tire using the sub-trunk portion. The tire can be held by effectively using the board member.

  Therefore, in the rear body structure of the vehicle that stores the mounting tire in the luggage compartment at the rear of the vehicle, the sub-trunk portion is used to store the mounting tire in a standing manner, and the movement of the mounting tire moves to the front side of the vehicle. In addition, the removed trunk board member can be effectively used.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A first embodiment according to the present invention will be described with reference to FIGS. 1 is a rear perspective view of the cargo compartment at the rear of the vehicle in a normal state, FIG. 2 is a rear perspective view of the cargo compartment when the mounted tire is stored, and FIG. 3 is a central sectional view from the side when the mounted tire is stored. (A) is AA arrow directional cross-sectional view of FIG. 2, FIG.4 (b) is BB arrow directional cross-sectional view of FIG.

  The rear vehicle body structure of the vehicle according to the present embodiment includes a rear seat 2 installed at the rear end of the passenger compartment floor 1 extending from the front of the vehicle to the rear side, and the rear of the rear seat 2 via the upper kick-up portion 3. A luggage compartment floor 4 that extends to the side, and a rear gate 5 that is a back door that opens and closes when loading / unloading luggage behind the cargo compartment floor 4.

  The above-mentioned rear seat 2 is a so-called bench seat type in which two passengers can sit side by side, and the seat backs 21 and 21 are 5 to 5 left and right side-separable folding seat backs that move forward independently. is there. According to these left and right split retractable seat backs 21 and 21, it is possible to construct a large cargo space by moving both forwards, or only one of them can be used as a cargo space (loading platform) by moving forward only one side. Can be configured.

  However, the seat backs 21 and 21 are separated from each other at the center when a load is applied from the rear side of the vehicle in the rear seat 2 by making the seat backs 21 and 21 split left and right. In combination with this, there is a problem in that the hinges (not shown) at the lower ends of the seat backs 21 and 21 are burdened and are likely to be deformed.

  By the way, the aforementioned luggage compartment floor 4 is formed with a recessed sub trunk box 6 extending in the vehicle width direction at the rear end, and a board holding groove 7 extending in the vehicle width direction is formed in front thereof. Yes. A flat trunk board 8 is installed above the sub trunk box 6 to cover the sub trunk box 6.

  The aforementioned sub-trunk box 6 is composed of a rectangular recess having a predetermined front-rear width (about 20 cm), a predetermined depth (about 15 cm), and a predetermined vehicle width length (about 100 cm), and a bottom surface 61 ( 2) is formed at a position recessed by one step from the surface of the cargo compartment floor 4. The sub-trunk box 6 normally functions as an accessory case such as an in-vehicle tool or a car wash tool.

  On the other hand, the trunk board 8 is made of a rectangular flat plate material larger than the opening of the sub-track box 6 and is normally positioned above the sub-trunk box 6 as shown in FIG. It functions as a lid member for the box 6.

  Thereby, even if the sub-trunk box 6 is formed at the rear end portion of the luggage compartment floor 4, the flat luggage compartment floor 4 can be configured, and various luggage can be loaded in the luggage compartment.

  The trunk board 8 is formed with a single insertion groove 82 extending in the vehicle width direction at the rear end of the front surface 81 side. Further, engagement round bars 83, 83 extending in the vehicle width direction are provided on the side end surfaces (see FIG. 1). Further, on the back surface 84 side, holding rib portions 85, 85 including holding portions 85 a, 85 a that are curved and formed along the outer periphery of the tire and reinforcing portions 85 b... Formed radially are formed. At the center, screw fixing portions 86, 86 for fixing and fixing a fixing bolt Y for fixing the mounting tire X are provided.

  The board holding groove 7 is recessed to extend in the vehicle width direction with a length substantially matching the longitudinal length of the trunk board 8, and when the mounted tire X is stored, as shown in FIG. It is comprised so that the lower end part of may be fitted and hold | maintained.

  A tonneau board 9 extending in the horizontal direction in the vehicle width direction is installed at a predetermined height position behind the seat backs 21 and 21. The tonneau board 9 is installed so as to bridge between the both side walls 10 of the cargo compartment T, and as shown in FIG. The part 91 is installed so as to fit into the recess 11 of the cargo compartment side wall 10.

  In such a rear body structure, the mounted tire X is stored in the luggage compartment T when the mounted tire is punctured. Since the size of the mounted tire X is large, it cannot be stored in the storage position of the spare tire (for example, the lower part of the cargo compartment floor 4 outside the vehicle), and the installed tire X is stored in the cargo compartment T on an emergency basis. It is.

  Specifically, as shown in FIG. 2, the lower part of the mounted tire X is inserted into the above-described sub trunk box 6 and stored with the tire rotating direction facing the vehicle width direction.

  At this time, the aforementioned trunk board 8 is not required to be removed from the sub-trunk box 6, but as shown in FIG. 2, by inserting the lower end into the board holding groove 7 with the surface 81 facing the front side of the vehicle, It will be installed upright to extend in the width direction.

  Furthermore, in this embodiment, the upper end of the trunk board 8 is fitted to the rear end of the tonneau board 9. Specifically, the trunk board 8 and the tonneau board 9 are integrated by fitting a protrusion 92 (see FIG. 1) at the rear end of the tonneau board 9 into the insertion groove 82 of the trunk board 8.

  For this reason, the trunk board 8 functions as a “vertical wall” member extending in the vehicle width direction in the luggage compartment T during tire puncture.

  As described above, since the holding rib portions 85 and 85 are formed on the rear surface 84 of the trunk board 8 on the vehicle rear side, the outer periphery of the mounting tire X is locked by the holding rib portions 85 and 85. It is possible to restrain the movement of the mounted tire X in the rotation direction (vehicle width direction).

  Further, the mounting tire X and the trunk board 8 can be completely integrated by screwing and fixing the fixing bolt Y that passes through the wheel portion Z of the mounting tire X to the screwing fixing portions 86 and 86. Can do. In particular, by fixing a strong wheel portion Z made of a metal member, the mounting tire X can be reliably integrated with the trunk board 8, and the lower trunk is inserted into the sub-trunk box 6 and accommodated in a standing manner. The rattling of the tire X is suppressed.

  Further, as shown in FIG. 3, since the mounting tire X is fixed to the trunk board 8 via the fixing bolt Y at the position of the center of gravity O, the mounting tire X is prevented from falling in the vehicle front-rear direction as much as possible. The

  Furthermore, this tilting in the longitudinal direction of the vehicle is further suppressed by fitting and locking the engagement round bars 83 and 83 to the recess 12 of the cargo compartment side wall 10 as shown in FIG. As a result, the forward and backward tilting of the mounted tire X is reliably suppressed.

  In this way, the load on the front side of the vehicle acts on the mounted tire X by locking the mounted tire X on the trunk board 8 extending in the vehicle width direction and standing in the luggage compartment T as a “vertical wall” member. Thus, even if the loaded tire X, which is a heavy object, moves to the front side of the vehicle, the presence of the trunk board 8 can avoid applying a load directly to the seat backs 21, 21 of the rear seat 2. For this reason, even if the seat backs 21 and 21 are configured to be split into left and right as described above, the hinges (not shown) of the seat backs 21 and 21 of the rear seat 2 are less likely to be deformed.

  In addition, by storing the mounting tire X in the luggage compartment T using the sub-trunk box 6 as described above, the height of the storage position of the mounting tire X can be lowered as shown in FIG. For this reason, even when the upper part of the rear gate 5 is inclined and the upper space S is narrow, a sufficiently large mounted tire X can be stored in the cargo compartment.

  Further, since the storage position of the mounted tire X can be lowered by the depth H of the sub-trunk box 6 as compared with the case where the mounted tire X is installed on the cargo compartment floor 4, the center of gravity position of the mounted tire X in the stored state can also be lowered. . For this reason, the change of the driving | running | working performance of the vehicle in the state which accommodated the mounting | wearing tire X can also be reduced as much as possible.

  As described above, in this embodiment, the luggage floor 4 in front of the sub-trunk box 6 is provided with the board holding groove 7 that holds the removed trunk board 8 so as to extend in the vehicle width direction. Since the holding rib portion 85 and the screwing fixing portion 86 for locking the mounting tire X on the board 8 are provided, the removed trunk board 8 extends in the vehicle width direction on the cargo compartment floor 4 by the board holding groove 7. Thus, the trunk board 8 is integrated with the mounted tire X to be accommodated by the holding rib portion 85 and the screwing fixing portion 86.

  For this reason, it is possible to reduce the tire height when storing the tire, which is an advantage of the storage structure for storing the mounted tire X using the sub trunk box 6, and to store the low center of gravity while removing it from the sub trunk box 6. The worn tire X can be locked by effectively using the trunk board 8 that has become unnecessary.

  Therefore, in the rear vehicle body structure in which the mounting tire X is stored in the luggage compartment T, the mounting tire X is stored upright using the sub-trunk box 6 so that the mounting tire X moves toward the front side of the vehicle. In addition, the removed trunk board 8 can be effectively used.

  In particular, as in the present embodiment, even when the rear seat 2 is configured with left and right split-foldable seat backs 21 and 21, the installed tire X becomes seat backs 21 and 21 due to the presence of the trunk board 8. Since there is no direct interference, even if the mounted tire X moves forward from the rear side of the vehicle, the load is dispersed or alleviated, and the possibility that the hinge (not shown) of the seat back 21 is deformed is reduced.

  Therefore, when the rear seat 2 provided with the left and right split-foldable seat backs 21 and 21 is installed to improve the cargo compartment function of the vehicle, the mounted tire X is stored in the sub-trunk box 6 while standing. The problem of deformation of the seat backs 21 and 21 can also be avoided.

  The fitted tire X during storage is tightened with a wheel member Z with a belt member or the like, and is engaged and fixed to a locking hook (see FIG. 7) in the cargo compartment, so that the stored state is maintained. Also good.

  The depth of the sub-trunk box 6 is preferably deeper than the depth of the present embodiment because the tire height is lowered and the center of gravity of the tire is lowered and stabilized.

  In the present embodiment, the mounting tire X is locked by holding rib portions 85 and 85 provided along the tire outer shape.

  For this reason, unstable movement in the vehicle width direction of the mounting tire X that is easy to roll can be suppressed via the trunk board 8.

  Therefore, rattling of the mounted tire X housed in the sub trunk box 6 can be suppressed, and abnormal noise such as vibration can be prevented while the vehicle is running.

  In the present embodiment, specifically, the mounted tire X is locked and fixed by a screw fixing portion 86 that fastens and fixes the wheel portion Z of the tire.

  For this reason, the trunk board 8 can be fixed to the strongest wheel portion Z in the mounted tire X, and the trunk board 8 and the mounted tire X can be reliably integrated.

  Therefore, rattling of the mounted tire X stored in the sub-trunk box 6 can be reliably suppressed, and abnormal noise such as vibration can be reliably prevented.

  Further, the engagement structure between the mounted tire X and the trunk board 8 is not limited to these, and for example, the shape of the back surface 84 of the trunk board 8 itself may be formed to substantially match the tire outer shape. Alternatively, the tire may be configured so as to surround the periphery of the tire using a low resilience cushion body, and may be a locking structure in which the trunk board 8 and the mounted tire X are integrated in some form.

  Further, in the present embodiment, engagement round bars 83 and 83 are provided at both ends of the trunk board 8 in the vehicle width direction so as to engage the luggage compartment side wall 10 and prevent the trunk board 8 from tilting forward and backward in the vehicle. .

  According to this structure, the trunk board 8 is supported by the luggage compartment side wall 10 by the engagement round bars 83, 83, and the trunk board 8 is prevented from tilting in the vehicle front-rear direction.

  For this reason, the tilt of the trunk board 8 in the vehicle front-rear direction is suppressed, and the fall of the mounted tire X in the vehicle front-rear direction can be suppressed.

  Therefore, it is possible to effectively support the load in the vehicle front-rear direction of the mounted tire X stored upright in the sub-trunk box 6 by using the trunk board 8.

  In the present embodiment, the upper end of the trunk board 8 in the upright state is locked to the rear end of the tonneau board 9 extending in the horizontal direction forward of the vehicle. The trunk board 8 is supported.

  Therefore, the tilting of the trunk board 8 on the front side of the vehicle is suppressed by the tonneau board 9, and the trunk board 8 can be held more stably and the load from the mounted tire X to the front side of the vehicle Can also be reliably supported.

  Next, a second embodiment shown in FIG. 5 will be described. 5A is a rear perspective view showing the sub-trunk box 106 and the mounted tire X accommodated therein, and FIG. 5B is a cross-sectional view taken along the line CC. The structure not disclosed in the drawings is the same as that of the above-described embodiment, and the same components as those of the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  In this embodiment, by changing the shape of the sub-trunk box 106, specifically, the shape of the bottom surface 161, the height of the storage position of the mounted tire X is reduced, while the layout space below the cargo floor 4 is reduced. It is to secure.

  The sub-trunk box 106 of this embodiment is also recessed so as to extend in the vehicle width direction at the rear end portion of the cargo compartment floor 4 as in the above-described embodiment, but the bottom surface 161 thereof is the first in the left and right positions. It consists of bottom surfaces 161a and 161a and a central lowermost recess 162 formed deeper than the first bottom surfaces 161a and 161a.

  That is, the lowest recess 162 is formed at a position deeper than the normal first bottom surfaces 161a and 161a at the center position of the sub trunk box 6.

  The lowermost recess 162 includes inclined surfaces 162a and 162a on both sides and a central second bottom surface 162b. When the tire is stored, the lower surface of the mounted tire X is abutted and supported on each surface as shown in FIG. It is configured.

  Further, as shown in FIG. 5B, elliptical exhaust mufflers 100, 100 are installed on both sides of the lower portion of the sub trunk box 106. That is, since the first bottom surface 61 is not formed so deeply, the exhaust mufflers 100 and 100 that require a large layout space are arranged using this lower space.

  It should be noted that the exhaust mufflers 100, 100 are desirably higher in position. This is because when the exhaust muffler 100, 100 position is lowered, the departure angle at the rear end of the vehicle is reduced, and the rough road running performance of the vehicle is deteriorated.

  On the other hand, since the lowermost recess 162 is formed in the sub-trunk box 106, the mounting tire X is stored at a low position, and the height of the mounting position of the mounting tire X can be lowered, and the low center of gravity is stored. Can also be done.

  As described above, in the present embodiment, the deepest lowermost concave portion 162 is formed in a part of the first bottom surface 161 of the subtrunk box 106, so that the mounted tire X is attached to the lowermost concave portion 162 of the subtrunk box 106. It will be stored and held.

  Therefore, it is possible to support the mounted tire X at a low position without setting the entire sub trunk box 106 deeply, and it can be mounted without deteriorating the layout property of the lower part of the cargo compartment floor 4 below the sub trunk box 106. The tire X is stored at a lower position, so that the tire height can be reduced and the low center of gravity can be stored.

  The lowest recess 162 is not limited to the central position, and may be configured to be formed at any one of the left and right side end positions.

  Further, the vehicle component disposed below is not limited to the exhaust muffler 100, and may be, for example, a spare tire, an under guard, or a fuel tank.

  Other functions and effects are the same as those in the above-described embodiment.

  Next, a third embodiment shown in FIG. 6 will be described. 6A is a rear perspective view showing the sub-trunk box 206 and the mounted tire X to be housed, and FIG. 6B is a cross-sectional view taken along line D-D in FIG. Note that, as in the second embodiment described above, structures not disclosed in the drawings are the same as those in the previous embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

  Also in this embodiment, the shape of the sub-trunk box 206, specifically, the shape of the bottom surface 261 is devised to maintain the stored state of the mounted tire X more reliably.

  The sub-trunk box 206 of this embodiment is also recessed so as to extend in the vehicle width direction at the rear end of the cargo compartment floor 4 as in the above-described embodiment, but at the center of the bottom surface 261 in the vehicle width direction. A pair of upright ribs 270 and 270 are disposed at predetermined intervals.

  That is, a pair of standing ribs 270 and 270 are joined to the center position of the bottom surface 261 of the sub trunk box 206 at a predetermined interval (about 15 cm) to support both sides of the lower portion of the mounted tire X. -ing

  As described above, in the present embodiment, the pair of standing ribs 270 and 270 support both sides of the lower portion of the mounting tire X, so that the mounting tire X is difficult to move in the vehicle width direction, and the sub trunk box The movement of the mounted tire X in 206 is restricted.

  Therefore, the movement of the mounted tire X within the sub-trunk box 206 is surely restricted and can be stored without rattling.

  The standing ribs 270 and 270 function as a partition wall of the sub trunk box 206 in a normal state.

  In addition, a slidable tray (not shown) is provided in the sub trunk box 206 in place of the standing ribs 270 and 270, and the movement of the mounted tire X in the sub trunk box 206 is regulated by this tray. You may comprise as follows.

  Other functions and effects are the same as those in the above-described embodiment.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The back door of the present invention corresponds to the rear gate 5 of the embodiment,
Similarly,
The trunk board member corresponds to the trunk board 8,
The sub trunk portion corresponds to the sub trunk boxes 6, 106, 206,
The trunk board support part corresponds to the board holding groove 7,
The engaging portion corresponds to the holding rib portion 85 and the screw fixing portion 86,
The tire holding portion corresponds to the holding rib portion 85,
The wheel fixing part corresponds to the screwing fixing part 86,
The inner wall engaging portion corresponds to the engaging round bar 83,
The tire holding recess corresponds to the lowest recess 162,
The tire holding rib corresponds to the standing rib 270,
The present invention is not limited to the above-described embodiment, but includes an embodiment applied to the rear body structure of any vehicle.

  For example, the seat back of the rear seat 2 is not limited to a left and right split type seat back, and may be an integral type seat back.

FIG. 4 is a rear perspective view of the cargo compartment at the rear of the vehicle at normal times. The rear perspective view of the cargo compartment at the time of mounting | wearing tire mounting. The center whole sectional view from the side at the time of mounting | wearing tire storage. (A) AA sectional view taken on the line in FIG. 2, (b) BB sectional view taken on the line in FIG. The rear perspective view which showed the mounting tire to accommodate (a) sub trunk box of 2nd embodiment, (b) CC sectional view taken on the line. The rear perspective view which showed the installation tire which (a) subtrunk box and accommodated of 3rd embodiment, (b) DD sectional view taken on the line. The figure explaining the prior art.

Explanation of symbols

2 ... Rear seat (sheet)
4. Cargo floor 5 ... Rear gate (back door)
6, 106, 206 ... Sub trunk box (sub trunk part)
7 ... Board holding groove (trunk board support)
8 ... Trunk board (trunk board member)
9 ... Tonneau board 83 ... Engagement round bar (inner wall engagement part)
85 ... holding rib part (tire holding part)
86: Screw fixing part (wheel fixing part)
162 .. Lowermost recess (tire holding recess)
270 ... Standing rib (tire holding rib)

Claims (8)

A back door at the rear end of the vehicle, a cargo compartment floor extending from the back door to the vehicle front side, a sub trunk portion having a bottom surface lower than the floor surface in the cargo compartment floor and extending in the vehicle width direction, A vehicle rear body structure including a trunk board member covering a sub trunk portion,
A trunk board support portion that holds the removed trunk board member upright so as to extend in the vehicle width direction on the cargo compartment floor in front of the sub trunk portion;
A rear body structure of a vehicle, wherein the trunk board member is provided with a locking portion for locking a tire that is stood and stored in the sub-trunk portion so as to extend in the vehicle width direction. The rear body structure of the vehicle according to claim 1, wherein the locking portion is a tire holding portion provided along a tire outer shape. The rear body structure of the vehicle according to claim 1, wherein the locking portion is a wheel fixing portion that fastens and fixes a wheel portion of a tire. The rear portion of the vehicle according to claim 1, wherein inner ends of the trunk boat member are provided with inner wall engaging portions that engage with both side walls of the cargo compartment to prevent the trunk board member from tilting forward and backward. Body structure. The rear body structure of the vehicle according to claim 1, wherein an upper portion of the trunk board member in the standing state is locked to a rear end portion of a tonneau board extending in a horizontal direction forward of the vehicle. The rear body structure of the vehicle according to claim 1, wherein a deeper tire holding recess is formed in a part of a bottom surface of the sub trunk portion. The rear body structure of the vehicle according to claim 1, wherein a pair of tire holding ribs spaced apart in the vehicle width direction are erected on the bottom surface of the sub-trunk portion. The rear vehicle body structure of a vehicle according to claim 1, wherein a seat provided with a left and right split retractable seat back is installed on the vehicle front side of the cargo floor.

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