JP2018176994A - Vehicle rear body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress deformation of a garage jack bracket caused by a pushing-up load input from a jack during jack-up.SOLUTION: In a garage jack bracket 1 attached to a rear face of a rear end panel 2 constituting a rear wall face of a cargo compartment 100 in a vehicle rear part, a front wall part 12 and a pair of right and left swollen parts 17 swollen rearward on both sides in the vehicle width direction with respect to the front wall part 12 are formed along the vertical direction at least including a bracket lower end part 19; a vertical wall part 21 joined to a front face of a lower part of the garage jack bracket 1 and an attachment bracket 20 formed with an attachment fitting face part 23 are provided on the lower part of the garage jack bracket 1; and an upper face of the attachment fitting face part 23 is joined to the bracket lower end part 19.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear body structure of a vehicle provided with a garage jack bracket which is attached to the rear surface of a rear end of a rear end panel constituting a rear wall surface of a luggage compartment and extends vertically.

  Generally, on the rear surface of the rear end panel that constitutes the rear wall of the luggage compartment, a garage jack bracket is provided for receiving the push-up from the jack and jacking up the rear of the vehicle.

  Conventionally, as the above-mentioned garage jack bracket, there are some which were indicated by patent documents 1, for example.

  The jack bracket (garage jack bracket) of Patent Document 1 adopts an upper and lower divided structure of upper and lower members, and these upper and lower members are joined to the rear surface of the rear end panel and the lower portion of the upper member And the upper part of the lower side member are overlapped in the front-rear direction (thickness direction) and integrally joined.

  In the jack bracket of Patent Document 1, the downward extension length from the rear surface of the rear end panel can be varied in accordance with the length (the degree of superposition) of the joining portion in the vertical direction between the upper and lower members. There is.

  Generally, when jacking up the rear part of a vehicle, a worker can enter between the vehicle and the road surface to secure a space where various operations and inspections can be performed under the floor of the vehicle, and is called a rigid rack or the like. It is necessary to jack up to the desired height where the intervening members can be intervened.

  At that time, as the extension length of the garage jack bracket downward from the rear surface of the rear end panel becomes longer, the push-up portion of the jack can be received from the lower position as much as possible, and the lifting stroke of the jack does not run short It is preferable in that it can be jacked up until the rear end of the vehicle body is fully raised to a desired height.

  However, starting with the jack bracket of Patent Document 1, in the configuration in which the garage jack bracket extends downward from the rear surface of the rear end panel, the vehicle body is front low and high when jacking up the rear of the vehicle. The lower end portion of the garage jack bracket is pushed up by the jack in a direction inclined with respect to the axial direction (vertical direction) as the shape is inclined.

  In this case, as the downward extension length of the garage jack bracket becomes longer, a greater bending stress acts on the garage jack bracket at the time of jacking up the rear part of the vehicle. It is disadvantageous in terms of point and design.

  Moreover, although the jack bracket of patent document 1 bends a sheet metal and is formed in the cross-sectional shape including the lower end part in substantially W shape, such a linear lower end part is jacked up At the same time, a configuration is employed in which the linear lower end portion directly abuts the push-up portion of the jack and receives the push-up from the push-up portion.

  However, in this configuration, there is concern that the lower end portion of the jack bracket is pushed by pushing up from the push-up portion of the jack when jacking up the rear part of the vehicle, so there is room for consideration.

JP, 2014-221607, A

  The present invention has been made in view of such problems, and an object of the present invention is to provide a rear vehicle body structure of a vehicle capable of suppressing deformation of a garage jack bracket by a lifting load input from the jack at the time of jacking up.

  The present invention relates to a rear vehicle body structure of a vehicle including a rear end panel constituting a rear wall surface of a luggage compartment at a rear portion of the vehicle and a garage jack bracket attached to the rear surface of the rear end panel and extending vertically. The bracket has a front wall portion extending in the vehicle width direction at a central position in the vehicle width direction and a front side position, and a pair of left and right bulging portions provided on both sides in the vehicle width direction with respect to the front wall portion A vertical wall including at least the lower end of the bracket (the lower end of the garage jack bracket) and extending in the vertical direction, the lower portion of the garage jack bracket being joined to the front surface of the lower portion; An attachment mounting surface that extends aft from the lower end and mounts an attachment located below the garage jack bracket Comprising an attachment bracket made, the upper surface of the attachment mounting surface is one which is joined to the bracket bottom end.

  According to the above configuration, the attachment bracket (the upper surface of the attachment attachment surface) is attached to the lower surface (the lower end of the bracket) of the garage jack bracket, so the surface rigidity of the attachment attachment surface is improved and the deformation of the attachment attachment surface is suppressed. Can. In addition, since the vertical wall portion of the attachment bracket is attached to the front of the garage jack bracket, a closed cross section can be formed between the vertical wall portion and the bulging portion in a side view of the vehicle. It is possible to suppress the bending deformation in the vertical direction of the jack bracket.

  As an aspect of the present invention, attachment attachment portions are formed on each side of the attachment attachment surface portion on the front and rear sides with respect to the joining portion of the lower end portion of the bracket, and The attachment longitudinal direction attachment center position is set at the attachment longitudinal direction attachment central position, and the attachment longitudinal direction attachment central position is disposed between the front end portion and the rear end portion of the lower end portion of the bracket in the longitudinal direction.

  According to the above configuration, since the lower end portion of the bracket is formed with a long front-to-back length with respect to the attachment center position in the attachment longitudinal direction (that is, with extension portions to both front and rear sides) The load can be effectively received by the lower end of the bracket through the attachment mounting surface.

  As an aspect of the present invention, the garage jack bracket includes a flange portion extending outward in the vehicle width direction from the outer end in the vehicle width direction of the bulging portion, and at least the lower end portion of the garage jack bracket in the vertical direction The flange portion is disposed forward of the attachment center position in the attachment longitudinal direction.

  According to the above configuration, at least at the lower end of the bracket, not only the front wall but also the pair of left and right flanges can be disposed forward of the attachment center position in the attachment longitudinal direction. Thus, the lower end portion of the bracket (through the attachment mounting surface portion) is also pushed up from the attachment bracket such that a bending load for tilting the garage jack-up bracket forward (in an upper front shape) is applied when jacking up the vehicle body. Can be well received.

  As an aspect of the present invention, the vertical wall portion is formed in an inclined shape extending forwardly and downwardly with respect to the main body side of the garage jack bracket, and the vertical wall portion can be joined to the main body side of the garage jack bracket. The attachment flange portion extends upward from the upper end portion of the wall portion, and the attachment attachment surface portion extends rearward from the lower end of the vertical wall portion.

  According to the above configuration, since the closed cross section can be formed between the vertical wall and the front wall as well as the bulging part in the vehicle side view, the garage jack bracket extending in the vertical direction can be formed. The suppression effect of the bending deformation accompanying pushing up from an attachment can be heightened more.

  Furthermore, as described above, the attachment attachment surface portion is disposed at the lower end of the bracket even when the attachment center position in the longitudinal direction of the attachment is located rearward of the front end of the lower end of the bracket in order to improve the support load for pushing up the attachment. The layout of the attachment bracket and the garage jack bracket can be enhanced without the front wall interfering with the vertical wall.

  As an aspect of the present invention, the garage jack bracket includes a flange portion extending outward in the vehicle width direction from an outer end in the vehicle width direction of the bulging portion, and the main body side of the garage jack bracket is at least in the vertical direction The front wall portion is formed so as to be positioned at substantially the same position or rear with respect to the pair of left and right flange portions in a side view of the vehicle (that is, in the front and rear direction). In the part, the front wall part is formed in front of the pair of left and right flange parts.

  According to the above configuration, while the joining flange portion and the pair of left and right flange portions can be reliably joined at the opposing portion of the main body side of the garage jack bracket and the joining flange portion of the attachment bracket, the front end of the bracket lower end portion Since the wall portion is formed to be located forward of the pair of left and right flange portions, the lower end portion of the bracket can firmly receive the lifting load from the attachment.

  According to the present invention, the deformation of the garage jack bracket can be suppressed by the lifting load input from the jack at the time of jacking up.

The perspective view which looked at the rear part vehicle body structure of the vehicles of this embodiment from the vehicles back. AA arrow arrow sectional drawing of FIG. The perspective view which looked at the garage jack bracket from the vehicle back. The perspective view which looked at the garage jack bracket from the vehicle front. Front view of a garage jack bracket. BB line arrow sectional drawing of FIG. 4, and CC line arrow sectional view of FIG.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
FIG. 1 is a perspective view showing a rear vehicle body structure of a vehicle according to this embodiment as viewed from the rear side of the vehicle, FIG. 2 is a sectional view taken along line AA of FIG. 1 and FIG. 3 is an enlarged view of essential parts of FIG. 4 is a perspective view of the garage jack bracket as viewed from the front left of the vehicle, and FIG. 5 is an imaginary line showing the attachment bracket. The front view which looked at the garage jack bracket from the vehicle front, Drawing 6 (a) shows the BB line arrow sectional view of Drawing 4, and Drawing 6 (b) shows the CC line arrow sectional view of FIG. In the figure, arrow F indicates the front of the vehicle, arrow L indicates the left of the vehicle, arrow R indicates the right of the vehicle, and arrow U indicates the upper side of the vehicle.

As shown in FIGS. 1 to 3, a rear end panel 2 is provided at the rear of the vehicle, which constitutes the rear wall of the luggage compartment 100 (see FIG. 2).
As shown in FIG. 2, the rear end panel 2 includes a lower vertical wall 2a extending vertically and a lower extension 2b extending rearward and upward from the upper end of the lower vertical wall 2a. An upper vertical wall 2c extending upward from the rear end of the lower extension 2b, an upper extension 2d extending rearward and upward from the upper end of the upper vertical wall 2c, and an upper extension An upper wall portion 2e rising upward from the rear end of the portion 2d and a flange portion 2f bent and formed into a front low rear high shape are integrally formed on the upper end of the upper wall 2e.

  The rear end member 3 is joined and fixed to the upper loading space side of the above-mentioned rear end panel 2, and a rear end closed cross section 4 extending in the vehicle width direction is formed between the rear end member 3 and the rear end panel 2 See Figure 2).

  As shown in FIG. 2, between the rear end panel 2 and the rear end member 3 described above, that is, at the central portion in the vehicle width direction, the striker reinforcement 5 (hereinafter referred to as “strike rain 5”) Is omitted).

  As shown in FIG. 2, the striker rain 5 has a front lower upper upper flange 5a joined and fixed to the flange 2f of the rear end panel 2, and an upper wall extending forward and downward from the upper flange 5a. The lower wall portion 5c extending downward from the front end of the upper wall portion 5b, and the lower vertical wall portion 2c of the rear end panel 2 which extends downward and is continuous with the lower wall portion 5c and is offset rearward. And a lower flange portion 5d joined and fixed to a front surface (a side surface of the luggage compartment 100) of the second embodiment.

  As shown in the figure, the above-mentioned rear end member 3 has a front lower rear upper shape upper flange portion 3a which is joined and fixed to the upper flange portion 5a of the striker rain 5, and the upper wall portion 5b from the upper flange portion 3a. An upper wall 3b extending to the front of the vehicle so as to overlap with the front, a lower wall 3c extending downward from the lower front end of the upper wall 3b, and a lower wall 3c are continuous and offset rearward A lower flange portion 3 d which extends downward and is joined and fixed to the lower flange portion 5 d of the striker lane 5 is integrally formed.

  As shown in FIGS. 1 and 2, the rear load chamber is formed by the joint end of the flange portion 2f of the rear end panel 2 described above, the upper flange portion 5a of the striker lane 5 and the upper flange portion 3a of the rear end member 3. The lower edge 6 a of the opening 6 is configured.

  Although not illustrated, a striker engaged with a latch (not shown) provided on a rear door (not shown) such as a trunk lid or a hatchback door is provided on the upper wall 5b of the striker rain 5 in the rear end member 3 The upper wall portion 3 b is sandwiched and fixed by, for example, a bolt or the like.

  Reference numeral 7 in FIG. 2 denotes a rear floor pan as a floor panel forming the bottom surface of the luggage compartment 100 formed at the rear of the vehicle, and the rear end thereof is the lower end of the lower vertical wall 2a of the rear end panel 2 It is joined from the vehicle interior 100 side (front side). A spare tire pan 7a recessed downward is formed at a central portion in a plan view of the rear floor pan 7.

  Reference numeral 29 in FIG. 1 denotes a pair of left and right rear side frames having a closed cross section extending in the longitudinal direction of the vehicle on the lower left and right sides of the rear floor pan 7, and reference numeral 8 in FIG. A crush can (not shown) is provided on the rear surface of the set plate 4 as a collision energy absorbing member that protrudes toward the rear of the vehicle. Reference numeral 28 in FIG. 1 denotes a bracket having an L-shaped side view for fastening the lower part of the rear bumper face (not shown) using a clip, and is fixed to the lower vertical wall 2 a of the rear end panel 2.

  A garage jack bracket 1 is attached at a substantially central position in the vehicle width direction on the rear surface of the rear end panel 2 described above.

  The garage jack bracket 1 is mainly for jacking up the rear part of the vehicle through the attachment 9 (see FIG. 1 and FIG. 2) to push up by a jack (not shown) to jack up the rear part of the vehicle. As shown in FIG. 4, the jack bracket main body member 10 extending in the vertical direction and the attachment bracket 20 integrally attached to the lower portion of the jack bracket main body member 10 are configured.

  The upper end of the jack bracket main body member 10 is located at the upper extension 2d of the rear end panel 2 in the vertical direction, and the upper end of the rear extension panel 2 (the lower extension 2a) is lower than the lower end of the rear end panel 2 (lower extension 2a). It extends vertically so as to extend downward, and by bending a single sheet of sheet metal, as shown in FIGS. 3, 6 (a) and 6 (b), it covers substantially the entire vertical direction. An orthogonal cross section in the up-down direction is formed in a substantially M shape (substantially W shape).

  More specifically, as shown in FIGS. 3 to 6 (a) and 6 (b), the jack bracket main body member 10 includes a front wall 12 extending in the vehicle width direction at the vehicle front and center in the vehicle width direction; A pair of left and right inner wall portions 13 and 13 extending backward while inclining outward from the outer end in the vehicle width direction and a left and right pair extending in the vehicle width direction outward from the rear end of the inner walls 13 and 13 Rear wall portions 14 and 14, a pair of left and right outer wall portions 15 and 15 extending forward while inclining outward from the outer end in the vehicle width direction of the rear wall portion 14 and the front end of the outer wall portions 15 and 15 It is integrally formed by a pair of left and right flange portions 16 and 16 extending outward in the vehicle width direction.

  As shown in FIGS. 3 to 5 and FIGS. 6 (a) and 6 (b), the jack bracket main body member 10 is a front wall portion by the inner wall portion 13, the rear wall portion 14 and the outer wall portion 15 on each side. The bulging parts 17 and 17 which bulging backward with respect to 12 and the flange part 16 are formed. The front wall portion 12 and the pair of left and right bulging portions 17, 17 form a central portion 18 located at the center in the vehicle width direction relative to the flange portion 16 (see the same figure). The jack bracket main body member 10 has the right and left orthogonal cross sections in the vertical direction (longitudinal direction) between the front wall portion 12 and the pair of left and right bulging portions 17 and 17 over the entire length in the vertical direction as described above The bulging parts 17 and 17 are formed in a substantially M shape (substantially W shape) which is opened forward.

  The flange portion 16 extends vertically along the rear surface of the lower vertical wall 2a of the rear end panel 2 and extends downward from the lower end of the lower vertical wall 2a, as shown in FIGS. Extending rearward and upward from the upper end of the flange main body portion 161 corresponding to the flange main body portion 161 and corresponding to the lower extension 2b of the rear end panel 2 with respect to the flange main body portion 161 The formed flange step portion 162, a flange upper portion 163 extending upward from the upper end of the flange step portion 162 along the rear surface of the upper vertical wall portion 2c of the rear end panel 2, and the upper end from the upper end of the flange upper portion 163 A curved flange upper end portion 164 is formed to be curved along the rear surface of the upper extension 2 d of the rear end panel 2.

As shown in FIGS. 2 to 5, the central portion 18 (i.e., the front wall portion 12 and the pair of left and right bulging portions 17 and 17) mainly includes the lower portion of the lower vertical wall portion 2 a of the rear end panel 2 in the vertical direction. And a central main body 181 corresponding to a portion extending downward from the lower end of the lower vertical wall 2a and a lower vertical wall 2a of the rear end panel 2 from the upper end of the central main body 181 And, it is integrally formed by a central bending portion 182 which is slightly bent rearward and a central forward inclined portion 183 which extends obliquely upward and rearward from the upper end of the central bending portion 182.
The center front inclined portion 183 is inclined in the shape of upper back lower front so that the lower front surface is in contact with the upper end (lower end of the upper vertical wall 2c) of the lower extension 2b (see S1 in FIG. 2) It extends.

In addition, as shown in FIGS. 2, 3, 5 and 6 (b), the lower portion of the front wall 12
A forward bulging portion 121 is provided so as to be gradually positioned forward as it extends downward to the lower end portion 19 (hereinafter referred to as “bracket lower end portion 19”) of the jack bracket main body member 10. The front bulging portion 121 is formed to be inclined upward and downward in a front shape.

  Here, as shown in FIG. 6A, the front wall portion 12 is at least a portion immediately above the front bulging portion 121 in the vertical direction, in other words, a portion facing the joint flange portion 22 described later of the attachment 9 The pair of left and right flanges 16, 16 are formed substantially flush with or slightly behind in the vehicle width direction. In this example, a facing portion of the front wall portion 12 with a bonding flange portion 22 described later is formed slightly behind the pair of left and right flange portions 16 and 16 (see FIG. 6A).

  On the other hand, as shown in FIG. 6 (b), the front wall 12 is formed of a pair of left and right flanges at the lower end 19 of the bracket along with the formation of the front bulging portion 121 at the lower part of the front wall 12. It is formed in the front side position more than 16,16.

  As shown in FIGS. 1 to 3, the jack bracket main body member 10 described above is joined and fixed to the rear surface of the rear end panel 2 by spot welding at a plurality of locations (7 locations in this example). Although the welding here is spot welding as described above, other welding methods such as arc welding may be adopted.

  Specifically, as indicated by “x” in FIG. 3, the position corresponding to the center forward inclined portion 183 in the vertical direction of the front wall portion 12 and the lower extension 2 b of the rear end panel 2 opposed thereto. A central joint S1 is provided which is joined to the upper edge position (see FIGS. 2 and 3). Furthermore, on both sides of the jack bracket main body member 10, there are provided upper side joint portions S2 and S2 in which the lower position of the flange upper portion 163 and the upper vertical wall portion 2c of the rear end panel 2 opposed thereto are joined. Side middle joint portions S3 and S3 are provided on both sides of the bracket main body member 10 by joining the upper position of the flange main body portion 161 and the lower vertical wall portion 2a of the rear end panel 2 opposite thereto. On the left and right sides of the member 10, side lower joint portions S4 and S4 are provided in which the lower position of the flange main body portion 161 and the lower vertical wall portion 2a of the rear end panel 2 opposed thereto are joined.

  As described above, in the jack bracket main body member 10, the curved flange upper end portion 164 projects from the lower side to the stepped upper extending portion 2d and the flange stepped portion 162 from the lower side to the stepped lower extending portion 2b. It joins in the state arrange | positioned at the rear surface of the rear end panel 2 so that it may contact.

  As shown in FIGS. 1 to 4, the attachment bracket 20 extends substantially horizontally from the lower end of the vertical wall 21 rearwardly from the lower end of the vertical wall 21 by bending the single-piece sheet metal member. The attachment attachment surface portion 23 to which the attachment 9 is attached is integrally formed in an L shape in a side view of the vehicle.

  The vertical wall portion 21 is disposed in the lower front of the jack bracket main body member 10, and is inclined in an upper back lower front shape so as to be separated forward with respect to the jack bracket main body member 10 in the lower side in the vehicle side view. Extend (see FIG. 2). Thus, a closed cross-section 24 surrounded by the vertical wall portion 21, the attachment mounting surface portion 23, and the lower front surface of the jack bracket main body member 10 is configured in a vehicle side view.

  Further, the upper end portion of the vertical wall portion 21 is provided with a joining flange portion 22 extending upward so as to be joinable to the front surface of the jack bracket main body member 10.

  The joint flange portion 22 is located above the front bulging portion 121 (in this example, a portion directly above the upper end of the front bulging portion 121) in the vertical direction of the front wall portion 12 (see FIG. 2).

  At this position, the joining flange portion 22 is joined to the pair of left and right flange portions 16 and 16 by welding (in this example, arc welding). By joining at this position, as shown in FIG. 6A, the joining flange portion 22 does not interfere with the front wall portion 12 (in particular, the front bulging portion 121), and the rear surface has a pair of left and right flange portions 16 , 16 can be bonded in a polymerized state (see FIG. 6 (a)).

  Further, the attachment attachment surface portion 23 extends rearward from the lower end of the vertical wall portion 21 as described above, but as shown in FIG. 2, FIG. 3, and FIG. While projecting rearward, the projecting portion toward the rear in a plan view is formed in a plate shape having a substantially semicircular arc shape.

  The attachment attachment surface portion 23 abuts the entire upper surface of the attachment attachment surface portion 23 and abuts on the upper surface of the attachment attachment surface portion 23 so as to support the jack bracket main body member 10 extending in the vertical direction from below. It is joined together by welding).

Further, as shown in FIGS. 1 and 2, the attachment mounting surface portion 23 is formed so that the attachment 9 disposed below the jack bracket main body member 10 can be attached.
Here, as shown in FIG. 2, the attachment 9 includes an attachment main body 91 formed in a pipe shape extending in the vertical direction, and an upper wall 92 integrally joined to the upper end of the attachment main body 91. ing. The upper wall portion 92 is formed flat in a side view of the vehicle so as to be able to butt against the lower surface of the attachment mounting surface portion 23 in a surface contact state.

  The upper wall portion 92 of the attachment 9 is provided with a pair of attachment engaging claws 93 and 93 engaged with the attachment mounting surface portion 23. Specifically, the pair of attachment engaging claws 93 and 93 are arranged at the same pitch on the front and rear sides with respect to the central portion of the upper wall portion 92 in plan view and are separated from each other It is protrudingly formed on each side (radial outward direction) (see FIG. 2).

  On the other hand, as shown in FIG. 2, FIG. 3 and FIG. 6B, the upper surface of the upper wall 92 of the attachment 9 abuts against the lower surface of the attachment mounting surface 23 on each side of the attachment mounting surface 23. In the above, attachment engagement holes 25, 25 capable of engaging each of the pair of attachment engagement claws 93, 93 are formed through.

  When the attachment 9 is rotated about its axis in a state where the upper wall portion 92 is in contact with the lower surface of the attachment attachment surface portion 23, the attachment engagement holes 25, 25 rotate the pair of attachment engagement claws 93, 93. It is formed in a circular arc shape to allow.

  Specifically, these attachment engagement holes 25 are formed in an arc shape having the same diameter and concentric circles in plan view on each of the front and rear sides of the attachment mounting surface portion 23, and one end side in the circumferential direction (In this example, the end portion side in the clockwise direction in plan view) is formed in an arrow shape in plan view in plan view having the insertion / removal portion 25a which is formed to be largely penetrated as compared with other portions in the circumferential direction. The attachment engagement claw 93 can be inserted into and removed from the attachment engagement hole 25 by the insertion and removal portion 25a.

  That is, when engaging the attachment engaging claw 93 into the attachment engaging hole 25, the attachment engaging claw 93 is inserted from the lower side into the attachment engaging hole 25 through the inserting and removing part 25a, and the attachment 9 is further By rotating around an axis (counterclockwise in a plan view in this example), the attachment mounting surface portion 23 can be engaged with each other at each of the front and rear positions.

  Although not shown, the lower end portion of the attachment main body 91 of the attachment 9 is in contact with the push-up portion of the jack, and can receive the push-up from the push-up portion.

  As described above, the attachment 9 is interposed between the attachment mounting surface portion 23 and the push-up portion of the jack, and can transmit the push-up of the jack to the garage jack bracket 1.

  At that time, as described above, the upper surface of the attachment mounting surface portion 23 and the bracket lower end portion 19 are welded, and the attachment engaging claw 93 is engaged with the attachment engaging hole 25 to push up the attachment 9. Even when a bending load is applied to the main body member 10, they do not separate from each other, and the jack bracket main body member 10 and the attachment 9 are integrally and linearly connected via the attachment bracket 20.

  In addition, when the attachment 9 is not in use, the engagement between the attachment engagement claw 93 and the attachment engagement hole 25 is released, and the attachment 9 can be removed from the attachment bracket 20 and accommodated, for example, in a trunk room together with a jack.

  Here, as shown in FIG. 6B, the center position of the attachment mounting surface portion 23 in the front-rear direction of the pair of front and rear attachment engagement holes 25 is set to the attachment front-rear mounting center position Pc.

  In the lower end portion 19 of the bracket, the attachment front-rear mounting center position Pc is located between the front wall 12 (in particular, the front bulging portion 121) located at the front end and the rear wall 14 located at the rear end. It is arranged to be.

  That is, a line L extending in a straight line in the vehicle width direction (hereinafter referred to as "longitudinal center line L") so as to pass attachment longitudinal direction attachment center position Pc is attached to bracket lower end portion 19 having a width in the longitudinal direction. It is set so as to cross (cross) the vehicle width direction. In other words, the bracket lower end portion 19 is disposed so as to straddle the longitudinal center line L in the longitudinal direction.

  Specifically, as shown in FIG. 6B, the front wall portion 12 (forward bulging portion 121) positioned at the front end of at least the bracket lower end portion 19 of the garage jack bracket 1 in the vertical direction is attached to the attachment longitudinal direction The rear wall portion 14 located on the front side of the central position Pc and located on the rear end is located rearward of the attachment longitudinal direction mounting center position Pc.

  Furthermore, in this example, the longitudinal center line L is located approximately in the longitudinal direction between the front wall 12 and the rear wall 14 of the bracket lower end 19. In other words, in this example, the front wall portion 12 and the rear wall portion 14 are arranged at the same pitch (distance) on the front and rear sides with respect to the front and rear direction center line L.

  Accordingly, not only the front wall portion 12 of the bracket lower end portion 19 but also the pair of left and right flange portions 16 and 16 are positioned forward of the center line L in the front and rear direction, and the center line L in the front and rear direction It extends across the sections 13, 13 and the outer walls 15, 15.

  The rear body structure of the vehicle according to the present embodiment comprises a rear end panel 2 constituting a rear wall surface of a luggage compartment 100 at the rear of the vehicle and a garage jack bracket 1 attached to the rear surface of the rear end panel 2 and extending vertically. In the rear body structure of the vehicle, the garage jack bracket 1 is provided on the front wall 12 extending in the vehicle width direction at the center and front position of the vehicle width direction, and on both sides of the front wall 12 in the vehicle width direction. A pair of left and right bulging parts 17 and 17 which expand in the backward direction are formed along the vertical direction, including at least the bracket lower end 19, and the lower part of the jack bracket main body member 10 is joined to the front of the lower part. Vertical wall portion 21 and an attachment 9 which extends rearward from the lower end of the vertical wall portion 21 and is disposed below the jack bracket main body member 10 (FIG. 1, FIG. 1 to 6 (a) and (b) are provided with an attachment bracket 20 formed of an attachment attachment surface portion 23 for attaching an attachment attachment portion 23 and the upper surface of the attachment attachment surface portion 23 is joined to the bracket lower end portion 19 reference).

  According to the above configuration, deformation of the garage jack bracket 1 (for example, bending deformation of the jack bracket main body member 10 or the lifting load from the attachment 9 by the lifting load input from the jack at the time of jacking up, ie, attachment) The deformation of the mounting surface portion 23 and the bracket lower end portion 19 can be suppressed.

  Specifically, since the attachment bracket 20 (the upper surface of the attachment attachment surface 23) is attached to the lower surface (bracket lower end 19) of the garage jack bracket 1, the attachment attachment surface 23 takes up the lifting load from the attachment 9 over the entire surface. Since the surface rigidity is higher than that of the lower end portion 19 of the bracket, it is possible to suppress the deformation due to the push-up load. Further, since the vertical wall portion 21 of the attachment bracket 20 is attached to the front surface of the jack bracket main body member 10, the attachment bracket 20 can also suppress bending deformation of the jack bracket main body member 10 in the vertical direction.

  Then, by adopting a configuration in which the attachment 9 is connected to the jack bracket main body member 10 via the attachment bracket 20, the downward extension length of the jack bracket main body member 10 can be suppressed. Thereby, the bending load acting on the jack bracket main body member 10 at the time of jacking up can be effectively suppressed, and the design surface can be improved.

  As an aspect of the present invention, attachment engagement holes 25 as attachment attachment portions are formed on each side of the attachment attachment surface portion 23 on the front and rear sides with respect to the joint portion of the bracket lower end portion 19. The center position of the longitudinal direction 25 of the attachment is set to the attachment center position Pc of attachment longitudinal direction, and the attachment center position Pc of attachment longitudinal direction is a front wall 12 located at the front end of the bracket lower end 19 and a rear wall located at the rear end It is arrange | positioned between the front-back direction with the part 14 (refer FIG.6 (b)).

  According to the above configuration, the lower end portion 19 of the bracket is formed with a longitudinal length (longitudinal pitch) with respect to the attachment longitudinal direction attachment center position Pc (that is, having a bulging portion to each longitudinal side) Therefore, the load input from the attachment 9 can be effectively received by the bracket lower end portion 19 via the attachment mounting surface portion 23.

  More specifically, the rear end of the vehicle body is in a front low rear high (in other words, ascend) posture (that is, the axial direction of the jack bracket main body member 10 is inclined in the front upper back and rear lower with respect to the vertical direction) Therefore, the bending stress applied to the jack bracket main body member 10 increases as the garage jack bracket 1 is pushed up by the attachment 9, but even in that case, the pushing load is increased without deformation of the attachment mounting surface 23 and the bracket lower end 19. Can be firmly transmitted to the jack bracket body member 10.

  As an aspect of the present invention, the jack bracket main body member 10 in the garage jack bracket 1 is provided with the flange portion 16 extending outward in the vehicle width direction from the outer end in the vehicle width direction of the bulging portion 17 In at least the bracket lower end portion 19 in the vertical direction, the flange portion 16 is disposed forward of the attachment longitudinal direction attachment center position Pc (see FIG. 6B).

  As described above, by jacking up the rear portion of the vehicle body, the rear portion of the vehicle body has a front low rear high (in other words, raised) posture (that is, the axial direction of the jack bracket main body member 10 is inclined front to back and top to bottom) Attitude).

  At that time, in the lower end portion 19 of the bracket, by the push-up from the attachment 9 via the attachment mounting surface portion 23, a larger push-up load is applied to the attachment longitudinal direction mounting center position Pc than the rear portion.

  However, even in that case, as described above, not only the front wall 12 but also the pair of left and right flanges 16 and 16 at least at the bracket lower end 19 are disposed in front of the attachment center position Pc in the attachment longitudinal direction. As a result (see FIG. 6B), the push-up load from the attachment 9 can be effectively received by the cooperation of the front wall portion 12 and the pair of left and right flange portions 16 and 16.

  Therefore, at the time of jacking up the rear of the vehicle so that the vehicle is in the front lower back posture, a pushing up load from the attachment 9 that causes a bending load to act on the garage jack bracket 1 is firmly at the bracket lower end 19 as well. It can be received.

  Further, as an aspect of the present invention, the vertical wall portion 21 is formed in an inclined shape extending away from the jack bracket main body member 10 in a forward and downward direction, and the vertical wall portion 21 can be joined to the jack bracket main body member 10. The attachment mounting surface portion 23 extends rearward from the lower end of the vertical wall portion 21 (see FIGS. 1 to 6) (see FIGS. 2 to 6A). 4 and 6 (b)).

  According to the above configuration, as described above, the attachment mounting surface portion 23 has the attachment front / rear direction attachment center position Pc at the front end of the bracket lower end portion 19 in order to improve the support load for pushing up the attachment 9 as described above. The vertical wall portion 21 is a bracket by forming the vertical wall portion 21 in an inclined shape although the rear wall portion 21 is disposed rearward of the front wall portion 12 (that is, although the front bulging portion 121 is provided in the lower portion of the front wall portion 12). The layout of the attachment bracket 20 and the jack bracket main body member 10 can be enhanced without interfering with the front wall portion 12 (the forward bulging portion 121) of the lower end portion 19.

  Furthermore, by forming the vertical wall 21 in an inclined shape, the closed cross section 24 can be formed between the vertical wall 21 and the front wall 12 as well as the bulging portion 17 (FIG. 2). 4, FIG. 6B, it is possible to further enhance the effect of suppressing bending deformation caused by pushing up from the attachment 9 of the jack bracket main body member 10 extending in the vertical direction.

  Further, as an aspect of the present invention, the jack bracket main body member 10 is provided with the flange portion 16 extending outward in the vehicle width direction from the outer end of the bulging portion 17 on the left and right sides thereof. The front wall portion 12 is formed to be positioned rearward in a vehicle side view with respect to the pair of left and right flange portions 16 and 16 at least at a portion facing the joining flange portion 22 in the vertical direction (see FIG. 6A) ), By forming the front bulging portion 121 below the opposing portion of the front wall portion 12, the front wall portion 12 is positioned forward of the pair of left and right flange portions 16 and 16 at the bracket lower end portion 19 (See FIG. 2, FIG. 3, and FIG. 6 (b)).

  According to the above configuration, although the joining flange portion 22 and the pair of left and right flange portions 16 and 16 can be reliably joined at the opposing portion of the jack bracket main body member 10 and the joining flange portion 22 of the attachment bracket 20. Since the front wall portion 12 is formed forward of the pair of left and right flange portions 16 and 16 at the bracket lower end portion 19, the bracket lower end portion 19 can firmly receive the lifting load from the attachment. it can.

  The present invention is not limited to the configuration of the above-described embodiment, and can be formed in various embodiments.

1 ... garage jack bracket 2 ... rear end panel 9 ... attachment 10 ... jack bracket body member (body side of garage jack bracket)
12: front wall portion 16: flange portion 17: bulging portion 19: bracket lower end portion 20: attachment bracket 21: vertical wall portion 22: joint flange portion 23: attachment attachment surface portion 25: attachment engagement hole (attachment attachment portion)
100 ... load room Pc ... attachment longitudinal direction attachment center position

Claims (5)

A rear end panel that constitutes the rear wall of the luggage compartment at the rear of the vehicle;
A rear body structure of a vehicle comprising a garage jack bracket mounted on the rear surface of the rear end panel and extending in the vertical direction,
The garage jack bracket is
A front wall portion extending in the vehicle width direction at a central position in the vehicle width direction and at a front side position, and a pair of left and right bulging portions provided on both sides in the vehicle width direction with respect to the front wall portion It is formed along the vertical direction including the lower end,
At the bottom of the garage jack bracket:
An attachment bracket formed by a vertical wall joined to the front of the lower part, and an attachment mounting surface which extends backward from the lower end of the vertical wall and mounts an attachment disposed below the garage jack bracket;
The upper surface of the attachment mounting surface portion is a rear vehicle body structure of a vehicle joined to the lower end portion of the bracket. An attachment mounting portion is formed on each side of the attachment mounting surface portion on the front and rear sides with respect to the joint portion of the lower end portion of the bracket,
Set the center position of the front and back direction of these attachment attachment parts in front and rear direction to the attachment center position of attachment front and rear direction,
The rear vehicle body structure of a vehicle according to claim 1, wherein the attachment longitudinal mounting center position is disposed between the front end and the rear end of the lower end of the bracket. The garage jack bracket includes a flange portion extending outward in the vehicle width direction from an outer end in the vehicle width direction of the bulging portion,
3. The rear vehicle-body structure of a vehicle according to claim 2, wherein at least the lower end of the bracket in the vertical direction of the garage jack bracket, the flange portion is disposed forward of the attachment center position of the attachment longitudinal direction. The vertical wall portion is formed in an inclined shape extending forwardly and downwardly from the main body side of the garage jack bracket, and can be joined to the main body side of the garage jack bracket from the upper end portion of the vertical wall portion It has a connecting flange that extends upward,
The rear body structure of a vehicle according to any one of claims 1 to 3, wherein the attachment mounting surface portion extends rearward from a lower end of the vertical wall portion. The garage jack bracket includes a flange portion extending outward in the vehicle width direction from an outer end in the vehicle width direction of the bulging portion,
The front wall portion of the main body side of the garage jack bracket is positioned at substantially the same position or rear in a vehicle side view with respect to the pair of left and right flange portions at least facing the joining flange portion in the vertical direction Formed as
The rear body structure of a vehicle according to claim 4, wherein the front wall portion is formed forward of the pair of left and right flange portions at the lower end portion of the bracket.

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