JP2013129261A - Vehicle body rear structure - Google Patents

Abstract

An object of the present invention is to provide a rear structure of a vehicle body that can efficiently disperse a load received from a jack and does not require an increase in weight and cost of a jack mount portion and its peripheral components.
A vehicle body rear structure 100 includes a jack mount portion 130 that receives a jack 120, a vertical wall portion 150 that extends in a vehicle vertical direction at a rear end 132a of a rear floor panel 132, and an upper portion of the vertical wall portion that extends rearward of the vehicle body. A skirt panel 142 having a curved portion 152 that is curved toward the front, and a lower end portion 144a is fixed to the vertical wall portion and an upper end portion 144b is fixed to the curved portion at the rear side of the skirt panel. And a cross member 134 that connects the lower surface of the rear floor panel and the vertical wall portion, and the jack mount portion is fixed to the cross member on the front side of the vehicle, and is located below the vertical wall portion of the skirt panel. Is fixed to the skirt member on the rear side of the vehicle.
[Selection] Figure 3

Description

  The present invention relates to a vehicle body rear structure provided with a jack mount for receiving a jack.

  A vehicle body such as an automobile includes a garage jack-up receiving portion (hereinafter referred to as a jack mount portion) that receives a jack during maintenance work or the like and serves as a jack-up point (for example, Patent Documents 1 and 2).

  Patent Document 1 describes a vehicle body rear structure including a cross member extending over the entire vehicle width at the lower surface of a rear floor panel that forms the floor surface of the vehicle body, and a jack mount portion fixed to the lower surface of the cross member. Has been.

  In the jack mount part of patent document 1, the bottom part which receives a jack, the two side-plate parts connected to the bottom part, and arrange | positioned facing the vehicle front-back direction, and the plate which is arrange | positioned in the vehicle width direction and couple | bonds the side-plate parts. The box structure provided is adopted. In patent document 1, it is supposed that the strength of a jack mount part will not be impaired by employ | adopting the jack mount part of a box structure.

  Patent Document 2 discloses a vehicle body rear structure that includes a vertical wall portion that forms a rear surface of a vehicle body and extends in the vehicle vertical direction, and a jack mount portion that is fixed to the vertical wall portion and formed from a single plate member. Is described.

  The jack mount part of patent document 2 is provided with the baseplate part which receives a jack, a pair of vertical board part, a pair of side plate part, and a tension part. The pair of vertical plate portions are bent upward from the bottom plate portion and face each other. The pair of side plate portions are provided above the bottom plate portion, connect the vertical plate portions, and form a cylindrical portion having the vertical direction as an axial direction together with the vertical plate portions. The strut portion is bent from the bottom plate portion toward the side plate portion, and is interposed between the bottom plate portion and the side plate portion in a state where the bottom plate portion is pressed upward by a jack. In patent document 2, since the jack mount part including a stretch part is formed from the single board | plate material, it is supposed that the deformation | transformation at the time of use of a jack mount part can be suppressed, without increasing the number of parts of a jack mount part.

JP 2006-219069 A JP 2009-29336 A

  In the techniques described in Patent Documents 1 and 2, the load is concentrated on the cross member fixed to the jack mount or the rear surface of the vehicle body. However, the vehicle body rear structure described in Patent Documents 1 and 2 is merely a structure that increases the strength of the jack mount itself, and does not fundamentally solve the load concentration as described above.

  That is, in the techniques described in Patent Documents 1 and 2, the load is concentrated on a specific peripheral component fixed to the jack mount portion, so the thickness of the peripheral component must be increased, and the weight and cost increase. There was a problem to do. In addition, since the body weight is supported by the jack mount portion and specific peripheral parts, there is a problem that the strength required for the jack mount portion itself is increased and the plate thickness is increased.

  The present invention has been made in view of such a problem, and an object thereof is to provide a vehicle body rear structure that can efficiently disperse a load received from a jack and does not require an increase in weight and cost of a jack mount portion and its peripheral components. .

  In order to solve the above-mentioned problems, a typical structure of a vehicle body rear structure according to the present invention is a vehicle body rear structure having a jack mount for receiving a jack. A skirt panel that is connected over the entire width and has a vertical wall portion that extends in the vehicle vertical direction, and a curved portion that curves from the top of the vertical wall portion toward the rear of the vehicle body, and on the rear side of the skirt panel A skirt member that extends over the entire width of the vehicle and forms a closed cross-section with the skirt panel in a side view by fixing the lower end portion to the vertical wall portion and the upper end portion to the curved portion, and the rear floor extending over the entire vehicle width. A cross member that connects the lower surface of the panel and the vertical wall, and the jack mount is fixed to the cross member on the front side of the vehicle. Characterized in that it is fixed to the skirt member at the vehicle rear side across the lower vertical wall portion of Topaneru.

  According to the above configuration, the load received by the jack mount when jacking up is transmitted to the cross member on the front side of the vehicle and to the skirt member on the rear side of the vehicle. Further, the load transmitted to the cross member is transmitted to the vertical wall portion of the skirt panel. Further, the load transmitted to the skirt member is transmitted to the curved portion and the vertical wall portion of the skirt panel via the upper end portion and the lower end portion. Thus, the load received by the jack mount is efficiently distributed to the cross member, the skirt member, and the skirt panel. Accordingly, since the vehicle body weight can be efficiently supported by the jack mount portion, it is not necessary to increase the plate thickness of the jack mount portion and the peripheral parts fixed to the jack mount portion, and the weight and cost can be reduced.

  The jack mount portion may include a bracket that receives the jack at the bottom and is fixed to the cross member at the front portion that is the front side of the vehicle, and a first reinforcement that is fixed to the bottom portion and is fixed to the skirt member at the rear side of the vehicle. . Thereby, the load which a jack mount part receives is transmitted to a cross member from the bottom part of a bracket, and is transmitted to a skirt member from the 1st reinforcement connected to the bottom part of a bracket. The load transmitted to the cross member and the skirt member is transmitted to the skirt panel as described above. Thus, since the jack mount part is formed from two parts, that is, a bracket including a bottom part that receives the jack and the first reinforcement that reinforces the bracket, the load received by the jack mount part is passed through the two parts. Can be distributed efficiently.

  A second reinforcement having a lower portion fixed to the upper surface of the cross member and an upper portion fixed to the vertical wall portion of the skirt panel may be further provided. Thereby, when jacking up, the load that the jack mount receives on the front side of the vehicle is distributed from the cross member through the second reinforcement in the shear direction of the vertical wall portion of the skirt panel. Therefore, even when the strength of the cross member is not sufficient, the load accompanying jack-up can be efficiently distributed.

  The skirt member is curved toward the vehicle upper side from the first wall surface extending from the lower end portion fixed to the vertical wall portion of the skirt panel, and is fixed to the curved portion of the skirt panel at the upper end portion. The vehicle body rear part structure may further include a third reinforcement disposed within the closed cross section, having one end fixed to the first wall surface and the other end fixed to the second wall surface. . Thereby, the skirt member which forms a closed section with a skirt panel is reinforced from the closed section side by the 3rd reinforcement. Therefore, the load that the jack mount receives on the rear side of the vehicle during jackup is transmitted to the skirt member reinforced by the third reinforcement. Therefore, even when the strength of the skirt member is not sufficient, the skirt member can be prevented from local breakage, and the load accompanying jackup can be efficiently dispersed.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle body rear part structure which can disperse | distribute the load received from a jack efficiently and does not need to increase the weight and cost of a jack mount part and its peripheral components can be provided.

It is a figure which shows a part of vehicle to which the vehicle body rear part structure in this embodiment is applied. It is a figure which expands and shows a part of vehicle body rear part structure of FIG. It is AA sectional drawing of the vehicle body rear part structure of FIG. It is BB sectional drawing of the vehicle body rear part structure of FIG. It is a figure which shows the state which looked at a part of vehicle body rear part structure of FIG. 1 from diagonally upward of the vehicle front side. It is a figure which shows the state which looked at a part of vehicle body rear part structure of FIG. 1 from diagonally downward of the vehicle rear side. It is a figure which shows the state which removed some members from the vehicle body rear part structure of FIG. It is sectional drawing which shows the vehicle body rear part structure of a comparative example.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram illustrating a part of a vehicle 110 to which a vehicle body rear structure 100 according to this embodiment is applied. FIG. 1A shows a state in which the vehicle 110 excluding the engine room is viewed obliquely from below, and shows the vehicle body rear structure 100 with each member omitted as appropriate. In the figure, the arrow Fr indicates the front side of the vehicle, and the arrow Rh indicates the right side of the vehicle. FIG. 1B shows an enlarged view of the vehicle body rear structure 100 of FIG.

  As shown in FIGS. 1A and 1B, the vehicle body rear structure 100 includes a jack mount portion 130 that receives a jack 120 (see FIG. 3) during maintenance work, for example. Further, as shown in FIG. 1B, the vehicle body rear structure 100 includes a rear floor panel 132 that forms the floor surface of the vehicle body, and a tail cross member that extends across the entire width of the vehicle and is connected to the lower surface of the rear floor panel 132. Hereinafter, a cross member 134) is provided. The cross member 134 is provided with a rod 136 for attaching a muffler (not shown).

  FIG. 2 is an enlarged view showing a part of the vehicle body rear structure 100 of FIG. FIG. 2A shows a state in which the jack mount 130 is viewed from the front side of the vehicle. FIG. 2B is a top view of the jack mount portion 130 as viewed from above the vehicle. FIG. 3 is a cross-sectional view taken along the line AA of the vehicle body rear structure 100 of FIG. In the figure, the jack 120 located below the jack mount 130 is shown. 4 is a BB cross-sectional view of the vehicle body rear structure 100 of FIG.

  As shown in FIGS. 2A and 3, the jack mount portion 130 includes a bracket 138 located on the front side of the vehicle and a reinforcement (hereinafter referred to as a first reinforcement 140) located on the rear side of the vehicle (details). Will be described later).

  In addition to the jack mount 130, the vehicle body rear structure 100 includes a tail skirt panel (hereinafter referred to as skirt panel 142), a tail skirt member (hereinafter referred to as skirt member 144), and the above-described jack mount portion 130, as shown in FIGS. A cross member 134, a tail cross member reinforcement (hereinafter, second reinforcement 146), and a tail skirt member reinforcement (hereinafter, third reinforcement 148) are provided.

  The skirt panel 142 is a member connected to the rear end 132a of the rear floor panel 132 over the entire vehicle width, and has a vertical wall portion 150 and a curved portion 152, as shown in FIGS. The vertical wall portion 150 extends in the vertical direction of the vehicle. For example, the lower portion is positioned below the rear floor panel 132 and the cross member 134, and the upper portion is positioned above the rear floor panel 132 and the first reinforcement 140. Yes. The bending portion 152 is bent from the upper part of the vertical wall portion 150 toward the rear of the vehicle body.

  The skirt member 144 is a member extending over the entire vehicle width on the rear side of the skirt panel 142, and forms a closed section 154 together with the skirt panel 142 in a side view, as shown in FIGS. The skirt member 144 has a lower end portion 144 a fixed to the vertical wall portion 150 together with the third reinforcement 148, and an upper end portion 144 b fixed to the curved portion 152.

  Further, the skirt member 144 has a first wall surface 156 and a second wall surface 158 that form a closed section 154. The first wall surface 156 includes the lower end portion 144a and extends rearward from the lower end portion 144a. The second wall surface 158 is curved from the first wall surface 156 toward the vehicle upper side and includes the upper end portion 144b.

  As shown in FIGS. 3 and 4, the third reinforcement 148 is a member disposed in the closed section 154. The third reinforcement 148 includes a flat surface portion 148a, one end portion 148b, and the other end portion 148c. The flat surface portion 148a is fixed to the first wall surface 156. The one end 148b is fixed to the vertical wall 150 and the lower end 144a of the first wall 156 on the front side of the vehicle. The other end 148c is fixed to the second wall surface 158 on the vehicle rear side.

  3 and 4, the cross member 134 is connected to the lower surface of the rear floor panel 132 at the front end portion 134a on the front side of the vehicle, and is connected to the vertical wall portion 150 at the rear end portion 134b on the rear side of the vehicle.

  As shown in FIGS. 3 and 4, the second reinforcement 146 has a lower portion 146 a fixed to the upper surface of the cross member 134 and an upper portion 146 b fixed to the vertical wall portion 150 of the skirt panel 142. A rear end 132a of the rear floor panel 132 is also fixed to the upper portion 146b of the second reinforcement 146.

  Next, the jack mount part 130 will be described. The jack mount portion 130 is formed of the bracket 138 and the first reinforcement 140 as described above. As shown in FIG. 3, the bracket 138 includes a bottom portion 160 that receives the jack 120, and a front portion 162 that is fixed to the cross member 134 and that is the front side of the vehicle.

  As shown in FIG. 3, the front portion 162 of the bracket 138 is inclined toward the front side of the vehicle from the bottom portion 160 toward the upper portion 164. The upper portion 164 of the bracket 138 protrudes upward and is fixed to the cross member 134 as shown in FIG. As shown in FIG. 2A, the bracket 138 includes side portions 166a and 166b that are curved from the front portion 162 toward the rear side of the vehicle and face each other. As shown in FIG. 2B, the bracket 138 has a substantially U shape surrounded by a front portion 162 and side portions 166a and 166b when viewed from above.

  As shown in FIGS. 2A and 2B, the bracket 138 protrudes from the side surface portions 166 a and 166 b in the vehicle width direction in the vicinity of the upper portion 164, and is a flange 168 a fixed to the cross member 134. 168b. In addition, the bracket 138 includes flanges 170a, 170b, 172a, and 172b that protrude from the side surface portions 166a and 166b in the vehicle width direction below the flanges 168a and 168b, respectively. As shown in FIGS. 2A and 4, the flanges 170 a and 170 b are fixed to the lower end portion 140 a of the first reinforcement 140. The flanges 172a and 172b are fixed to the first reinforcement 140 above the flanges 170a and 170b.

  As shown in FIG. 3, the first reinforcement 140 has a lower end portion 140a fixed to the bottom portion 160 of the bracket 138 and an upper end portion 140b fixed to the first wall surface 156 of the skirt member 144 on the rear side of the vehicle. . That is, the first reinforcement 140 is a member that reinforces the bracket 138 on the vehicle rear side.

  In the AA cross section of FIG. 3, the jack mount portion 130 has a bracket 138 fixed to the cross member 134 at the front side of the vehicle, and straddles the lower side of the vertical wall portion 150 of the skirt panel 142, and is One reinforcement 140 is fixed to the skirt member 144. 4, the first reinforcement 140 is fixed to the vertical wall 150 of the skirt panel 142 at a position above the rear floor panel 132, and further fixed to the lower end 144a of the skirt member 144. ing.

  Here, with reference to the perspective view of FIGS. 5-7, the arrangement | positioning relationship between the jack mount part 130 in the vehicle body rear structure 100 and each member of the periphery is demonstrated roughly. FIG. 5 is a diagram showing a state in which a part of the vehicle body rear structure 100 of FIG. 1 is viewed obliquely from the upper front side of the vehicle. In the drawing, the rear floor panel 132 is removed from the rear structure 100 of the vehicle body. FIG. 6 is a view showing a state in which a part of the vehicle body rear structure 100 of FIG. FIG. 7 is a view showing a state where some members are removed from the vehicle body rear structure 100 of FIG. FIG. 7A shows the skirt member 144 removed from the vehicle body rear structure 100. FIG. 7B shows a state in which the third reinforcement 148 shown in FIG. 7A is viewed obliquely from the upper front side of the vehicle.

  In the vehicle body rear structure 100, as shown in FIG. 5, a bracket 138 located on the vehicle front side that forms the jack mount portion 130 is fixed to a cross member 134 that extends in the vehicle width direction. The bracket 138 is fixed to the cross member 134 at the upper portion 164 of the front portion 162. A second reinforcement 146 is fixed to the upper surface of the cross member 134. Further, the vertical wall 150 of the skirt panel 142 is fixed to the rear side of the second reinforcement 146 in the vehicle. A first reinforcement 140 fixed to the bottom 160 of the bracket 138 is disposed on the vehicle rear side of the bracket 138.

  In the vehicle body rear structure 100, as shown in FIG. 6, the first reinforcement 140 having the lower end portion 140a fixed to the bottom portion 160 extends toward the vehicle upper side, and the upper end portion 140b is the first wall surface of the skirt member 144. It is fixed to 156. Further, a vertical wall portion 150 of the skirt panel 142 is disposed on the vehicle front side of the first reinforcement 140. In the drawing, in addition to the bracket 138, the cross member 134, and the second wall surface 158 of the skirt member 144, the rear floor panel 132 omitted in FIG. 5 is shown.

  In the vehicle body rear structure 100, one end 148 b of the third reinforcement 148 is fixed to the vertical wall 150 of the skirt panel 142 as shown in FIG. 7A in which the skirt member 144 is omitted. Further, the curved portion 152 of the skirt panel 142 is positioned above the other end portion 148b of the third reinforcement 148.

  Further, below the flat surface portion 148a (see FIG. 7B) located between the one end portion 148b and the other end portion 148c, as shown in FIG. 7A, the upper end of the first reinforcement 140 is placed. The part 140b is located.

  Hereinafter, a case where the jack 120 is received by the vehicle body rear structure 100 will be described with reference to FIG. For example, when jacking up during maintenance work or the like, first, the push-up portion 120a of the jack 120 pushes the bottom portion 160 of the bracket 138 upward as indicated by a virtual line in the drawing.

  As described above, the jack mount portion 130 is formed by the bracket 138 fixed to the cross member 134 and the first reinforcement 140 fixed to the skirt member 144. Therefore, the load received by the jack mount portion 130 is transmitted from the bottom portion 160 of the bracket 138 to the cross member 134 (see arrow C), and from the first reinforcement 140 connected to the bottom portion 160 of the bracket 138, the skirt member 144. (See arrow D).

  Further, as described above, the cross member 134 is fixed to the vertical wall portion 150 of the skirt panel 142 at the rear end portion 134b on the vehicle rear side. For this reason, the load transmitted to the cross member 134 is transmitted to the vertical wall portion 150 of the skirt panel 142 via the rear end portion 134b.

  Further, the second reinforcement 146 has the lower portion 146 a fixed to the cross member 134 and the upper portion 146 b fixed to the vertical wall portion 150 of the skirt panel 142 as described above. Therefore, even if the strength of the cross member 134 is insufficient, the load transmitted to the cross member 134 is transmitted from the cross member 134 via the second reinforcement 146 to the vertical wall portion 150 of the skirt panel 142. Dispersed in the shear direction.

  On the other hand, the skirt member 144 forms a closed section 154 together with the skirt panel 142 as described above. For this reason, the load transmitted to the skirt member 144 is transmitted to the curved portion 152 and the vertical wall portion 150 of the skirt panel 142 via the upper end portion 144b and the lower end portion 144a of the skirt member 144.

  Further, as described above, the third reinforcement 148 has the flat surface portion 148a fixed to the first wall surface 156 of the skirt member 144 and the one end portion 148b fixed to the lower end portion 144a and the vertical wall portion 150 of the first wall surface 156. The other end 148c is fixed to the second wall surface 158.

  That is, the skirt member 144 is reinforced from the closed cross-section 154 side by the third reinforcement 148. For this reason, even if the strength of the skirt member 144 is not sufficient, local folding is unlikely to occur in the skirt member 144. Therefore, the load transmitted to the skirt member 144 is reliably transmitted to the skirt panel 142.

  FIG. 8 is a cross-sectional view showing a vehicle body rear structure 200 of a comparative example. FIG. 8 corresponds to FIG. 3 showing the AA cross section.

  The rear structure 200 of the vehicle body does not have the first reinforcement 140, the second reinforcement 146, and the third reinforcement 148, and the jack mount portion 204 formed only by the bracket 202 is fixed to the lower surface of the cross member 206. It differs from the said vehicle body rear part structure 100 by the point by which it is carried out.

  The bracket 202 includes a bottom portion 208 that receives the jack 120 (see FIG. 3), and is fixed to the cross member 206 on the vehicle front side and the vehicle rear side. The cross member 206 is fixed to the lower surface of the rear floor panel 210 on the vehicle front side, and is fixed to the bracket 202, the rear end 210a of the rear floor panel 210, and the vertical wall portion 214 of the skirt panel 212 on the vehicle rear side. The skirt panel 212 has a curved portion 216 that is curved from the upper part of the vertical wall portion 214. Further, the skirt member 218 has a lower end portion 218a fixed to the vertical wall portion 214 of the skirt panel 212 and an upper end portion 218b fixed to the curved portion 216, thereby forming a closed section 220 together with the skirt panel 212 in a side view. ing.

  In such a vehicle body rear structure 200, the load received by the jack mount portion 204 from the jack 120 is concentrated on the cross member 206 fixed to the jack mount portion 204. Further, the vehicle body rear structure 200 does not have a reinforcement for reinforcing the bracket 202, the cross member 206, and the skirt member 218, respectively.

  For this reason, in the vehicle body rear structure 200 of the comparative example, the strength required for the jack mount portion 204 itself is increased, and thus it is necessary to increase the thickness of the bracket 202. Further, since the load is concentrated on the cross member 206 fixed to the jack mount portion 204, it is necessary to increase the plate thickness similarly to the bracket 202. That is, in the vehicle body rear structure 200, the load received by the jack mount portion 204 from the jack 120 cannot be efficiently distributed, and the vehicle body weight and manufacturing cost increase. In particular, the cross member 206 is a member extending in the vehicle width direction, and the weight and cost are significantly increased by increasing the plate thickness.

  In contrast, in the vehicle body rear structure 100 according to the present embodiment, the jack mount portion 130 is formed by the bracket 138 located on the vehicle front side and the first reinforcement 140 that reinforces the bracket 138 on the vehicle rear side. For this reason, the load which the jack mount part 130 receives at the time of jackup is efficiently disperse | distributed by the bracket 138 and the 1st reinforcement 140. FIG. That is, the load that the jack mount 130 receives on the vehicle front side is transmitted from the bottom 160 of the bracket 138 to the skirt panel 142 via the cross member 134 and the second reinforcement 146. The load received by the jack mount 130 on the rear side of the vehicle is transmitted from the first reinforcement 140 to the skirt panel 142 via the skirt member 144 reinforced by the third reinforcement 148.

  Therefore, in the vehicle body rear structure 100, the load received by the jack mount 130 is efficiently distributed to the cross member 134, the skirt member 144, and the skirt panel 142. In other words, in the vehicle body rear structure 100, the weight of the vehicle body can be efficiently supported by the jack mount portion 130. For this reason, in the vehicle body rear structure 100, sufficient rigidity can be ensured without increasing the plate thickness of the jack mount portion 130 and peripheral components fixed to the jack mount portion 130, and the weight and cost can be reduced.

  Further, as an example, when a spare tire is accommodated under the rear floor panel 132, the jack mount portion 130 becomes longer toward the vehicle lower side, and is further disposed at a position shifted from the center in the vehicle width direction of the vehicle. It can happen. In such a case, the jack mount portion 130 receives a large load or a lateral force. However, as described above, the vehicle body rear structure 100 can efficiently disperse the load received from the jack 120, so that the weight of the vehicle can be efficiently supported, the plate thickness is not increased, and the weight and cost can be reduced. It becomes. Even in a vehicle that does not accommodate a spare tire under the rear floor panel 132, it is not necessary to increase the thickness of the jack mount portion 130 as described above.

  Further, since the load is transmitted to the skirt panel 142 via the second reinforcement 146, even when the strength of the cross member 134 is not sufficient, the load accompanying the jack-up can be efficiently dispersed.

  Furthermore, since the skirt member 144 is reinforced by the third reinforcement 148, even if the strength of the skirt member 144 is not sufficient, the skirt member 144 is prevented from being locally broken, and a load accompanying jackup is prevented. Can be distributed efficiently. Since the skirt member 144 is disposed along the vehicle width direction at the lower edge of the back door opening (not shown), the local reinforcement is prevented by the third reinforcement 148 so that the back door opening is prevented. The deformation of the part can also be reduced. Therefore, it is possible to avoid the deterioration of the open / close performance of the back door accompanying the deformation of the back door opening.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle body rear structure including a jack mount portion that receives a jack.

DESCRIPTION OF SYMBOLS 100 ... Car body rear structure, 110 ... Vehicle, 120 ... Jack, 130 ... Jack mount part, 132 ... Rear floor panel, 134 ... Cross member, 138 ... Bracket, 140 ... First reinforcement, 142 ... Skirt panel, 144 ... Skirt member 146: 2nd reinforcement, 148: 3rd reinforcement, 150 ... vertical wall part, 152 ... curved part, 154 ... closed section, 156 ... first wall surface, 158 ... second wall surface, 160 ... bottom part, 162 ... front Part, 164 ... upper part, 166a, 166b ... side part, 168a, 168b, 170a, 170b, 172a, 172b ... flange

Claims (4)

In the rear structure of the vehicle body with a jack mount that receives a jack,
A skirt panel that is connected to the rear end of the rear floor panel that forms the floor of the vehicle body over the entire vehicle width, and is curved toward the rear of the vehicle body from the vertical wall portion extending in the vehicle vertical direction and the upper portion of the vertical wall portion. A skirt panel having a curved portion;
A skirt member that extends over the entire width of the vehicle on the rear side of the skirt panel and forms a closed cross section with the skirt panel in a side view by fixing the lower end portion to the vertical wall portion and the upper end portion to the curved portion. When,
A cross member extending over the entire vehicle width and connecting the lower surface of the rear floor panel and the vertical wall portion;
The vehicle body rear structure, wherein the jack mount portion is fixed to the cross member on the front side of the vehicle and is fixed to the skirt member on the rear side of the vehicle across the lower side of the vertical wall portion of the skirt panel. The jack mount is
A bracket that receives the jack at the bottom and is fixed to the cross member at the front that is the front side of the vehicle;
The vehicle body rear structure according to claim 1, further comprising a first reinforcement fixed to the bottom portion and fixed to the skirt member on a vehicle rear side.   The vehicle body rear structure according to claim 1, further comprising a second reinforcement having a lower portion fixed to an upper surface of the cross member and an upper portion fixed to a vertical wall portion of the skirt panel. The skirt member has a first wall surface extending rearward from the lower end portion fixed to the vertical wall portion of the skirt panel, and is curved toward the vehicle upper side from the first wall surface, and the upper end of the skirt member is bent to the curved portion of the skirt panel. A second wall surface fixed at the portion,
The vehicle body rear structure further includes a third reinforcement disposed in the closed cross section, having one end fixed to the first wall surface and the other end fixed to the second wall surface. Item 4. The vehicle body rear structure according to any one of Items 1 to 3.

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