JP2016185738A - Rear part structure of vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rear part structure of a vehicle body which enables a garter outer panel to be assembled thereinto without interfering with a tow hook bracket.SOLUTION: A rear part structure of a vehicle body includes: a rear side frame 14 extending toward the rear side and having a closed cross section shape; a frame body part 68 which forms a closed section surface below a rear end of the rear side frame 14 and opens to at least the rear side; a garter inner panel 36 joined to the rear end of the rear side frame 14; a garter outer panel 34 which is integrally formed with the side panel 38 and joined to a rear surface of the garter inner panel 36; and a tow hook bracket 60 which is inserted into the frame body part 68 from the rear side and fixed to the frame body part 68 by bolts B.SELECTED DRAWING: Figure 5

Description

  More specifically, the present invention relates to a rear structure of a vehicle body in which a garter outer panel integrally having a side panel is joined to a garter inner panel joined to a rear end of a rear side frame. The present invention relates to a structure for mounting a tow hook bracket.

  A vehicle body used for a vehicle such as an automobile is provided with a traction hook at a rear portion for engaging a hook of a traction rope when towing another vehicle. As a structure for attaching the tow hook member to the vehicle body, the base portion of the hook member is fixed to the lower surface of the rear side frame and the side surface of the spare tire pan that bulges below the rear side frame at the side, and the hook portion at the tip is the base portion What protrudes further downward is well-known (patent document 1). According to this configuration, the amount of protrusion of the hook portion downward from the rear side frame can be increased without causing deformation of the tow hook member when a load is applied.

  In recent years, there are many configurations in which only the traction hook bracket is fixed to the vehicle body so that the traction hook member can be attached when necessary, instead of fixing the traction hook member integrally to the vehicle body. As a mounting structure for such a tow hook bracket to the vehicle body, a downward extension is formed in the shock absorbing member interposed between the front end of the front side frame and the bumper beam, and in this extension, A bracket in which a hook fastening portion (attachment portion) for attaching a tow hook (mounting portion) is fixed so as to protrude forward (Patent Document 2) is known. According to this configuration, the hook member is attached at a position offset downward from the center of the shock absorbing member, and a reduction in the shock absorbing stroke of the shock absorbing member is prevented.

Japanese Utility Model Publication No. 60-104306 JP 2010-195108 A

  By the way, in the structure in which the tow hook bracket is attached to the rear part of the vehicle body, when a garter inner panel is provided so as to close the rear end of the rear side frame and the garter outer panel joined to the garter inner panel has the side panel integrally, The outer panel needs to be assembled from the outside in the vehicle width direction to the inside. At this time, if the tow hook bracket is provided so as to protrude rearward, the tow hook bracket interferes and the garter outer panel cannot be assembled. Here, it is conceivable to provide the tow hook bracket so as not to protrude rearward. However, if this is done, the location where the hook member is attached becomes difficult to understand, which is not preferable.

  In view of such a background, an object of the present invention is to provide a rear structure of a vehicle body that can be assembled without causing the garter outer panel to interfere with the traction hook bracket.

  In order to solve such problems, the present invention provides a rear frame (14) having a closed cross-sectional shape extending rearward, and a closed cross-section formed below the rear end of the rear frame, at least toward the rear. An open frame body (68), a garter inner panel (36) joined to the rear end of the rear frame, and a garter formed integrally with the side panel (38) and joined to the rear surface of the garter inner panel. An outer panel (34) and a tow hook bracket (60) that is inserted into the inside of the frame body portion from the rear and fixed to the frame body portion with bolts (B) are provided.

  According to this structure, since the tow hook bracket is inserted into the frame body portion from the rear and is fixed to the frame body portion by the bolt, the vehicle body after the garter outer panel integrated with the side panel is joined to the garter inner panel in the welding process. Can be attached to. Therefore, the garter outer panel can be assembled without interfering with the tow hook bracket.

  In the above invention, the garter outer panel (34) and the garter inner panel (36) form a skeleton having a closed cross section at the lower corner portion of the tailgate opening (37) formed in the rear portion of the vehicle body. It is good to have a configuration.

  According to this configuration, the lower corner portion of the tailgate opening at the rear of the vehicle body can be reinforced.

  In the above invention, the frame body portion (68) includes a substantially U-shaped member (66) having an upward opening that is joined to the left and right side walls (14D) of the rear frame (14), and the rear frame. It is good to set it as the structure formed with a bottom wall (14C).

  According to this configuration, the frame body portion having rigidity capable of withstanding the support of the tow hook can be realized with a simple configuration.

  In the above invention, the frame body portion (68) includes left and right frame body side fastening flanges (66C) extending along the garter inner panel (36), and bolt fastening portions of the traction hook bracket (60) ( 72) and a bottom wall (66B) formed thereon.

  According to this configuration, the tow hook bracket inserted into the frame body portion from the rear can be reliably fixed to the frame body portion.

  In the above invention, the tow hook bracket (60) may have a left and right bracket side fastening flange (78C) projecting outward along the garter inner panel (36).

  According to this configuration, the traction hook bracket inserted into the frame body portion from the rear can be easily positioned by the contact of the bracket side fastening flange. Accordingly, the tow hook bracket can be easily fixed to the bolt fastening portion formed on the bottom wall of the frame body portion with the bolt.

  In the above invention, the tow hook bracket (60) includes a rod-like attachment portion (76) to which the tow hook is detachably attached, and a bracket portion (78) to which the attachment portion is fixed, The bracket portion projects outwardly from a base portion (78A) formed with a recess (80) for receiving the lower portion of the mounting portion, and is fastened by the left and right frame-side fastening flanges (66C) and bolts (B2). The left and right bracket side fastening flanges (78C) may be used.

  According to this configuration, since the left and right bracket-side fastening flanges and the left and right frame-side fastening flanges are fastened by the bolts, the tow hook bracket inserted into the frame body portion from the rear can be reliably fixed to the frame body portion.

  In the above invention, the tow hook bracket (60) includes a rod-like attachment portion (76) to which the tow hook is detachably attached, and a bracket portion (78) to which the attachment portion is fixed, The bracket part may have a front edge folded part (78D) facing the front end of the attachment part.

  According to this configuration, the floor panel and the like can be prevented from being damaged by the mounting portion that moves relative to the front of the vehicle body at the time of a rear collision.

  Further, in the above invention, the tow hook bracket (60) includes a rod-shaped attachment portion (76) to which the tow hook is detachably attached, and the attachment portion is more than the rear end of the rear frame (14). It is good to set it as the structure fixed to the said frame part (68) so that it may protrude back.

  According to this configuration, the position of the attachment portion is easily understood, and the attachment work of the tow hook is facilitated.

  In the above invention, the frame body portion (68) may have a wider width than the rear frame (14).

  According to this configuration, since the tow hook bracket can be brought close to the bottom surface of the rear frame while securing the mounting strength of the tow hook bracket, the minimum ground height can be increased.

  Thus, according to the present invention, it is possible to provide a rear structure of a vehicle body that can be assembled without causing the garter outer panel to interfere with the traction hook bracket.

Bottom view of the rear structure of the vehicle body related to the embodiment The perspective view which looked at the rear part structure of the vehicle body which concerns on embodiment from diagonally lower back The perspective view which looked at the rear part structure of the vehicle body which concerns on embodiment from diagonally upward front FIG. 3 is a perspective view corresponding to FIG. 3 with the rear inner panel removed. The perspective view which looked at the attachment part of the tow hook bracket from diagonally lower rear The perspective view which looked at the attachment part of the tow hook bracket from diagonally lower front VII-VII sectional view in FIG. VIII-VIII sectional view in FIG. Perspective view of tow hook bracket

  Hereinafter, embodiments of a rear structure of a vehicle body according to the present invention will be described in detail with reference to the drawings. In the following description, “joining” is joining by welding such as spot welding unless otherwise specified. Each member may be made of a general steel plate, and some members may be made of a high-tensile steel plate as necessary. The “hat-shaped cross-sectional shape” is a cross-sectional shape including a groove-shaped cross-sectional shape portion and having flanges (welding allowance) extending outward on both sides of the groove-shaped cross-sectional shape portion.

  FIG. 1 is a bottom view of the rear structure of the vehicle body as viewed from below, and FIG. 2 is a diagonal view of the rear structure of the vehicle body seen through a left garter outer panel 34 and a rear inner panel 32 to be described later. It is a perspective view. As shown in FIGS. 1 and 2, the rear floor panel 10 constitutes a floor at the rear of the vehicle body, and is formed by pressing an open bathtub-shaped recess 12. The recess 12 may be used as a spare tire house that accommodates a spare tire, or may be used as a space that accommodates a drive battery unit (IPU: Intelligent Power Unit) or the like instead of the spare tire. Further, the recess 12 is partitioned up and down or front and back by a partition member arranged at an appropriate position, and the divided storage chamber is used as a storage chamber for tools, jacks, etc., or a storage chamber for puncture repair kits, for example. Good.

  Left and right rear side frames 14 extend in the front-rear direction on both left and right sides of the rear portion of the vehicle body with the recess 12 interposed therebetween. The rear side frame 14 has a hat-shaped cross-sectional shape, and by joining both flange portions (see FIG. 8) to the rear floor panel 10 of the recess 12, a closed cross-sectional shape is formed in cooperation with the rear floor panel 10. . As shown in FIG. 1, the left and right rear side frames 14 are joined at the front end to the rear end of the corresponding side sill 18, and bend toward the side closer to each other behind the joint with the side sill 18. Further, they extend in parallel to each other behind the curved portion 14A, and demarcate regions constituting left and right rear tire houses on the outer sides of the curved portions 14A.

  As shown in FIGS. 1 and 2, the rear side frame 14 is formed by a joined body of a front member 20 in front of a rear floor middle cross member 26 described later and a rear member 22 in rear of the rear floor middle cross member 26. It is configured. The joint A between the front member 20 and the rear member 22 is located at substantially the same position as the position of the rear floor middle cross member 26 in the front-rear direction. The rear member 22 is configured to have a lower bending strength than the front member 20.

  An end of a rear floor cross member 24 extending in the vehicle width direction is joined to the curved portion 14A of the rear side frame 14. The rear floor cross member 24 is spanned between the left and right rear side frames 14 to connect the left and right rear side frames 14 to each other.

  Near the joint between the front member 20 and the rear member 22 in the parallel portions 14B of the left and right rear side frames 14, the ends of the rear floor middle cross member 26 extending in the vehicle width direction are joined. The rear floor middle cross member 26 is spanned between the left and right rear side frames 14 to connect the left and right rear side frames 14 to each other. The rear floor middle cross member 26 is located behind the rear floor cross member 24.

  The rear floor cross member 24 and the rear floor middle cross member 26 each have a hat-shaped cross-sectional shape, and both flange portions are joined to the lower bottom surface of the rear floor panel 10 so as to cooperate with the rear floor panel 10 to have a closed cross section. Form a shape. The rear floor middle cross member 26 has a staple shape following the outer shape of the recess 12.

  FIG. 3 is a perspective view of the rear structure of the vehicle body as viewed obliquely from the upper front, and FIG. 4 is an enlarged view of the main part of FIG. 3 through a rear inner panel 32 and a left garter outer panel 34 described later. FIG. As shown in FIGS. 3 and 4, a rear panel that extends in the vehicle width direction along the rear end of the rear floor panel 10 and that is joined to the rear end of the rear side frame 14 on both the left and right sides. (Rear floor end cross member) 28 is provided.

  The rear panel 28 includes a rear outer panel 30 (FIG. 4) and a rear inner panel 32 (FIG. 3) joined to each other, and left and right garter outer panels 34 joined to both the left and right sides of the rear outer panel 30 and the rear inner panel 32. (FIG. 4) and the horizontal portion of the garter inner panel 36 (FIG. 4). The rear panel 28 has a closed cross-sectional shape by these, and forms a lower skeleton of the tailgate opening 37 formed at the rear part of the vehicle body. The tailgate opening 37 is opened and closed by a flip-up type tailgate (not shown).

  The garter outer panel 34 is formed integrally with the side panel 38 that forms the side surface of the vehicle body including the left and right rear pillars 38A of the tailgate opening 37, and has an L shape extending in the front-rear direction and the left-right direction. The garter outer panel 34 is assembled to the vehicle body together with the side panel 38 from the outside in the vehicle width direction toward the inside. The gartain inner panel 36 has a portion extending in the vertical direction joined to the rear pillar 38A to form a rear pillar lower with a closed cross section. The rear pillar lower forms a side skeleton of the tailgate opening 37 that continues from the rear panel 28 through the lower corner portion.

  As shown in FIGS. 1 and 2, a box member 40 is provided at the center of the rear floor panel 10 in the vehicle width direction. The box member 40 is a box outer member joined to a corner portion of the vertical wall portion 30A of the rear outer panel 30 and a bottom wall portion 30B bent so as to extend rearward at the upper end of the vertical wall portion 30A. The upper inner portion is joined to the vertical wall portion 30A, and the lower side is composed of a box inner member joined to the lower side of the box outer member, and cooperates with the rear outer panel 30 to form a box structure. .

  The box member 40 hangs downward from the rear end of the rear floor panel 10, and the bottom portion where the box outer member and the box inner member are overlapped and joined forms the jack-up portion 44. Further, the box member 40 is formed with tie-down hook engaging holes 46 and 48 in the above-described overlapping joint portion and rear wall, thereby forming a tie-down hook mounting portion.

  As shown in FIG. 4, in the center of the vehicle outer width direction inside the closed cross section by the rear outer panel 30 and the rear inner panel 32, the first bulk is provided at the position corresponding to the box member 40 to reinforce the portion. The head member 50 is joined. Further, in a position inside the closed cross section by the horizontal portion of the garter outer panel 34 and the garter inner panel 36 and spaced from the first bulkhead member 50 to the left and right, it is perpendicular to the vehicle width direction in order to reinforce the portions. The left and right second bulkhead members 51 provided in the are joined together.

  As shown in FIGS. 1 and 2, the center of the recess 12 in the vehicle width direction extends in the front-rear direction along the lower bottom surface of the recess 12, and the front end is joined to the rear floor middle cross member 26. A rear center member 52 having a rear end joined to the box member 40 is provided. The rear center member 52 includes a front member 54 including a joint portion with the rear floor middle cross member 26, and a front end is joined to the rear end of the front member 54, and the box is bent from the front member 54 according to the bottom shape of the recess 12. The intermediate member 56 extends to the vicinity of the member 40, and the rear member 58 is joined to the rear end of the intermediate member 56 at the front end and extends from the intermediate member 56 to the joint portion with the box member 40. .

  At the lower part of the rear end of the left rear side frame 14, a tow hook bracket 60 for attaching a tow hook (not shown) that engages a hook of a tow rope when towing another vehicle is attached. Hereinafter, the structure around the tow hook bracket 60 and its mounting portion will be described in detail with reference to FIGS.

  As shown in FIG. 8, the rear side frame 14 has a hat-shaped cross-sectional shape that opens upward as described above, and extends upward at the left and right ends of the bottom wall 14C and the bottom wall 14C. Left and right side walls 14D, and left and right flanges 14E that are bent so as to spread laterally and extend laterally at the upper end of the side wall 14D. The rear side frame 14 has a closed cross-sectional shape in cooperation with the rear floor panel 10 by joining the left and right flange portions 14E to the lower bottom surface of the rear floor panel 10.

  The rear floor panel 10 includes a center floor panel 10A disposed between the left and right rear side frames 14, a side floor panel 10B disposed outward of the rear side frame 14 in the vehicle width direction, and the center floor panel 10A and the side floor. The rear frame upper 10C is connected to the panel 10B. One of the flange portions 14E of the rear side frame 14 is joined to the lower surface of the center floor panel 10A, and the other is joined to the lower surface of the side floor panel 10B. The left and right ends of the rear frame upper 10C are joined to the upper surfaces of the center floor panel 10A and the side floor panel 10B, thereby closing the upward opening of the rear side frame 14 and forming a closed cross-sectional shape.

  As shown in FIG. 7, a reinforcing member 62 that extends horizontally at an intermediate position in the height direction of the rear side frame 14 is inside the closed section of the rear side frame 14 and at the rear end of the rear side frame 14. It is joined.

  As shown in FIG. 7, the garter inner panel 36 is joined to the rear end of the rear side frame 14 so as to close the rearward opening of the rear side frame 14 formed in a hollow shape. The gartain inner panel 36 has a front wall portion 36A joined to the rear end of the rear side frame 14, and an upper wall portion 36B bent so as to extend rearward at the upper end of the front wall portion 36A. Yes. On the other hand, the garter outer panel 34 includes a rear wall part 34A joined to the rear end of the upper wall part 36B of the garter inner panel 36, and a bottom wall bent so as to extend forward at the lower end of the rear wall part 34A. Part 34B. The bottom wall portion 34B is joined to the front wall portion 36A in the vicinity of the lower end of the rear side frame 14.

  As shown in FIGS. 5 and 7, a vertical wall portion 34 </ b> C joined to the front wall portion 36 </ b> A of the garter inner panel 36 continuously extends downward at the front end of the bottom wall portion 34 </ b> B of the garter outer panel 34. Are integrally formed. Inside the closed cross section formed by the garter outer panel 34 and the garter inner panel 36, a reinforcing member 64 having a box structure in cooperation with the corner angle of the garter inner panel 36 at a position corresponding to the rear side frame 14 (FIG. 2 (see also the left side reinforcing member 64).

  As well shown in FIGS. 6 and 8, a frame member 66 that forms a closed cross section below the rear side frame 14 is joined to the rear end of the rear side frame 14. The frame member 66 has left and right side walls 66A and a bottom wall 66B that connects the lower ends of the side walls 66A, and has a substantially U shape that opens upward. The frame member 66 is configured such that the upper portion of the left and right side walls 66A is joined to the side wall 14D of the rear side frame 14 to form a frame section 68 having a closed cross-sectional shape in cooperation with the bottom wall 14C of the rear side frame 14.

  The left and right side walls 66A of the frame member 66 are spaced apart from each other in the upper portion joined to the side wall 14D of the rear side frame 14 by a width that is substantially the same as the width of the rear side frame 14, and the height corresponding to the bottom wall 14C of the rear side frame 14 is high. The intermediate portion in the vertical direction is bent in a crank shape and widened, and the lower portion is wider than the upper portion. In other words, the lateral width of the frame body portion 68 is larger than the lateral width of the rear side frame 14. The frame body 68 has a horizontally long, substantially rectangular cross-sectional shape that is smaller in height than the width.

  The frame member 66 is bent so as to extend horizontally in the direction of approaching the vertical wall constituting the side wall 66A and the lower end of the vertical wall, and the horizontal wall constituting the bottom wall 66B by being overlapped and joined. And a pair of left and right L-shaped members 70. The frame member 66 is formed in a substantially U shape by overlapping and joining the lateral walls of the left and right L-shaped members 70. The frame body portion 68 constituted by the frame member 66 and the rear side frame 14 has a rectangular tube shape that opens forward and rearward. As shown in FIG. 7, the rear end of the frame member 66 is located at substantially the same longitudinal position as the rear end of the rear side frame 14. That is, the rear end of the frame body portion 68 substantially coincides with the rear end of the rear side frame 14.

  Returning to FIGS. 6 and 8, a bolt fastening portion 72 for fastening the tow hook bracket 60 with the bolt B <b> 1 is formed on the bottom wall 66 </ b> B of the frame member 66. The bolt fastening portion 72 is constituted by a bolt insertion hole (FIG. 8) formed in the bottom wall 66B and a surrounding wall portion. As shown in FIG. 8, the left and right side walls 66A of the frame member 66 are bent at the rear end and extend along the garter inner panel 36, and are fastened and fixed to fix the tow hook bracket 60 with bolts B2. The left and right frame body side fastening flanges 66 </ b> C forming a part are integrally formed. The frame-side fastening flange 66C includes a meat wall portion in which a bolt insertion hole is formed and a weld nut 74 welded to the front surface of the meat wall portion. On the bottom wall 66B of the frame member 66, a pair of contact flanges 66D that are bent at the rear end and extend downward along the garter inner panel 36 are integrally formed.

  As shown in FIGS. 5 and 7, the front wall portion 36 </ b> A of the gartain inner panel 36 extends downward from the lower end of the rear side frame 14 and extends below the lower end of the frame body portion 68. A through hole 36 </ b> C having substantially the same size as the rearward opening is formed at a position corresponding to the rearward opening 68. On the other hand, at the lower edge of the vertical wall portion 34C of the garter outer panel 34, a notch 34D larger than the rear opening is formed at a position corresponding to the rear opening of the frame body portion 68. Thereby, the frame part 68 is opened toward the rear without being blocked by the garter inner panel 36 or the garter outer panel 34.

  As shown in FIGS. 5 and 6, bolt insertion holes (not shown) are formed in the gartain inner panel 36 at positions corresponding to the weld nuts 74 of the frame-side fastening flange 66 </ b> C. Inside the frame body portion 68, a tow hook bracket 60 that is inserted from the rear and fixed to the frame member 66 by four bolts B1 and B2 is disposed. The frame member 66 transmits the tensile load applied from the tow hook bracket 60 to the rear side frame 14.

  As shown in FIG. 9, the traction hook bracket 60 includes a rod-shaped attachment portion 76 to which a traction hook (not shown) is detachably attached, and a bracket portion to which the attachment portion 76 is fixed and supports the fixed attachment portion 76. 78. In FIG. 9, four bolts B1 and B2 for fixing the tow hook bracket 60 to the frame member 66 are also shown. As shown in FIG. 7, the attachment portion 76 has a cylindrical shape with a through hole formed in the shaft center, and a female screw is formed at least at the rear portion of the through hole. A tow hook (not shown) is detachably attached to the attachment portion 76 by being screwed into the screw hole from behind. The tow hook is not limited to a hook shape, and may be a shape that can engage a tow rope or a hook provided at an end of the tow rope. The tow hook is constituted by an eyebolt, for example.

  As shown in FIG. 9, the bracket portion 78 is folded so as to extend upward at both the left and right ends of the base portion 78 </ b> A having a recess 80 extending in the front-rear direction formed on the upper surface. Bent left and right side wall portions 78B, left and right bracket side fastening flanges 78C bent outwardly at the front end of the side wall portion 78B, and upward extending at the front end of the base portion 78A And a leading edge folded portion 78D that is bent in a straight line. A weld nut 82 for screwing the bolt B1 is welded to the upper surface of the base portion 78A at two positions on the left and right sides of the mounting portion 76. A bolt insertion hole (not shown) through which the bolt B2 is inserted is formed in the bracket side fastening flange 78C.

  The attachment portion 76 is disposed so that the front end faces the front edge folded portion 78D and the lower portion is received in the recess 80, and is joined to the base portion 78A by MIG welding. Since the lower portion of the mounting portion 76 is received in the concave portion 80, the mounting portion 76 is more stably held than the concave portion 80 and the interval between the left and right welded portions is increased. Bond strength is improved. The attachment portion 76 has a rear end that is positioned behind the rear end of the bracket-side fastening flange 78C and the base portion 78A in a state of being fixed to the bracket portion 78.

  The tow hook bracket 60 configured as described above is inserted into the frame body 68 from the front indicated by the arrow in FIG. 9, that is, from the rear as illustrated in FIG. At this time, the position at which the left and right bracket-side fastening flanges 78 </ b> C abut on the rear inner panel 32 is set as the fixed position of the tow hook bracket 60. That is, in a state where the bracket side fastening flange 78C is in contact with the rear inner panel 32, the weld nut 82 (FIG. 8) fixed to the base portion 78A is aligned with the bolt fastening portion 72 (bolt insertion hole) of the frame member 66. The bolt insertion hole of the bracket side fastening flange 78C (FIG. 5) is aligned with the weld nut 74 of the frame side fastening flange 66C (FIG. 6).

  After positioning the tow hook bracket 60, as shown in FIGS. 5 and 8, two bolts B1 are inserted from below into the bolt fastening portion 72 of the frame member 66 and screwed into the weld nut 82 of the base portion 78A. Thus, the base portion 78A is fixed to the bottom wall 66B of the frame member 66. As shown in FIGS. 5 and 6, two bolts B2 are inserted from the rear into the bolt insertion holes of the bracket side fastening flange 78C and the bolt insertion holes of the garter inner panel 36 to weld the frame side fastening flange 66C. By screwing onto the nut 74, the bracket side fastening flange 78C is fixed to the frame side fastening flange 66C with the garter inner panel 36 interposed therebetween. In this way, the tow hook bracket 60 is fixed to the frame member 66 by the four bolts B.

  In the state where the tow hook bracket 60 is fixed to the frame member 66, as shown in FIGS. 2 and 5, the rear portion of the base portion 78A and the rear portion of the mounting portion 76 are arranged around the rear side frame 14, the frame body portion 68, and the surroundings. It protrudes rearward from the front wall portion 36A of the existing garter inner panel 36 and the vertical wall portion 34C of the garter outer panel 34 in which the notch 34D is formed. The mounting portion 76 that protrudes most rearward extends below the bottom wall portion 34B of the garter outer panel 34 toward the rear, and its rear end is a bent portion between the bottom wall portion 34B and the rear wall portion 34A. It is located below (see FIG. 7).

  As described above, since the garter outer panel 34 is formed integrally with the side panel 38, it is assembled to the vehicle body from the outside in the vehicle width direction toward the inside. Therefore, if the tow hook bracket 60 is first attached to the vehicle body, the garter outer panel 34 cannot be assembled to interfere with the tow hook bracket 60.

  In this embodiment, as shown in FIGS. 2 and 5, a frame body portion 68 forming a closed cross section is provided below the rear end of the rear side frame 14 so as to open at least toward the rear, and a tow hook bracket 60 is inserted into the frame body 68 from behind and is fixed to the frame body 68 with bolts B. Therefore, after the garter inner panel 36 is joined to the rear end of the rear side frame 14 and the garter outer panel 34 integrated with the side panel 38 is joined to the rear surface of the garter inner panel 36 in the welding process, the tow hook bracket 60 is attached to the vehicle body. It is possible. Therefore, the garter outer panel 34 can be assembled without interfering with the pulling hook bracket 60.

  As shown in FIGS. 3 and 4, the garter outer panel 34 and the garter inner panel 36 form a skeleton having a closed cross section at the lower corner portion of the tailgate opening 37 formed at the rear of the vehicle body. Therefore, the lower corner portion of the tailgate opening 37 at the rear of the vehicle body is reinforced.

  As shown in FIGS. 6 and 8, in this embodiment, the frame body portion 68 includes a substantially U-shaped frame member 66 having an upward opening that is joined to the left and right side walls 14 </ b> D of the rear side frame 14, and the rear side frame 14. And the bottom wall 14C. Therefore, the frame body portion 68 having rigidity capable of withstanding the support of the tow hook can be realized with a simple configuration.

  The frame body 68 includes left and right frame body side fastening flanges 66 </ b> C extending along the garter inner panel 36 and a bottom wall 66 </ b> B in which the bolt fastening portion 72 of the traction hook bracket 60 is formed. Therefore, the tow hook bracket 60 inserted into the frame body portion 68 from the rear is securely fixed to the frame body portion 68.

  In the present embodiment, as shown in FIG. 5, the tow hook bracket 60 has left and right bracket-side fastening flanges 78 </ b> C that project outward along the garter inner panel 36. For this reason, by bringing the bracket side fastening flange 78C into contact with the rear inner panel 32, the tow hook bracket 60 inserted into the frame body portion 68 from the rear can be easily positioned. Thereby, the operation | work which fixes the tow hook bracket 60 with the volt | bolt B2 inserted in the bolt fastening part 72 formed in the bottom wall 66B of the frame part 68 becomes easy.

  Further, as shown in FIG. 9, a tow hook bracket 60 is configured by a rod-like attachment portion 76 to which the tow hook is detachably attached and a bracket portion 78 to which the attachment portion 76 is fixed. 78, a base portion 78A in which a concave portion 80 for receiving the lower portion of the mounting portion 76 is formed, and left and right bracket side fastening flanges 78C projecting outward and fastened by left and right frame body side fastening flanges 66C and bolts B2. Is provided. Therefore, the tow hook bracket 60 inserted into the frame body portion 68 from the rear can be reliably fixed to the frame body portion 68.

  Further, the tow hook bracket 60 includes a rod-shaped attachment portion 76 and a bracket portion 78 to which the attachment portion 76 is fixed, and the bracket portion 78 has a front edge folded portion 78D that faces the front end of the attachment portion 76. . Therefore, even if the attachment portion 76 moves relative to the front of the vehicle body at the time of a rear collision, the attachment portion 76 prevents the floor panel and the like from being damaged.

  In this embodiment, as shown in FIGS. 5 and 7, the tow hook bracket 60 is fixed to the frame body portion 68 so that the rod-shaped attachment portion 76 projects rearward from the rear end of the rear side frame 14. The Therefore, the position of the attachment portion 76 is easy to understand, and the attachment work of the traction hook to the attachment portion 76 is easy.

  In addition, as shown in FIGS. 6 and 8, the frame body portion 68 is wider in width than the rear side frame 14. Therefore, the lateral width of the tow hook bracket 60 is wider than that of the rear side frame 14, and the attachment strength of the tow hook bracket 60 to the frame body portion 68 is ensured. In addition, since the mounting strength is ensured, the height of the frame body portion 68 can be reduced so that the tow hook bracket 60 is brought close to the bottom surface of the rear side frame 14, so that the minimum ground height at the rear of the vehicle body is reduced. It can be enlarged.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. For example, the specific configuration, arrangement, quantity, material, and the like of each member and part can be changed as appropriate without departing from the spirit of the present invention. On the other hand, not all the constituent elements shown in the above embodiment are necessarily essential, and can be appropriately selected.

14 Rear side frame (rear frame)
14C Bottom Wall 14D Side Wall 28 Rear Panel 34 Garter Outer Panel 36 Garter Inner Panel 37 Tail Gate Opening 38 Side Panel 60 Pulling Hook Bracket 66 Frame Member 66B Bottom Wall 66C Frame Body Side Fastening Flange 68 Frame Body 72 Bolt Fastening 76 Mounting Section 78 Bracket 78A Base part 78C Bracket side fastening flange 78D Front edge folded part 80 Recessed part B1, B2 Bolt

Claims (9)

A rear frame having a closed cross-sectional shape extending rearward;
A frame section that forms a closed cross section below the rear end of the rear frame and opens at least rearwardly;
A gartain panel joined to the rear end of the rear frame;
A garter outer panel formed integrally with the side panel and joined to the rear surface of the garter inner panel;
A rear structure of a vehicle body comprising a tow hook bracket that is inserted into the inside of the frame body portion from the rear and is fixed to the frame body portion with a bolt.   The rear structure of the vehicle body according to claim 1, wherein the garter outer panel and the garter inner panel form a skeleton having a closed cross section at a lower corner portion of a tailgate opening formed in a rear portion of the vehicle body. .   The said frame part is formed of the substantially U-shaped member of the upward opening joined to the left and right side walls of the rear frame, and the bottom wall of the rear frame. The rear structure of the vehicle body described in 1.   The said frame body part has the left-right frame body side fastening flange extended along the said garner inner panel, and the bottom wall in which the bolt fastening part of the said traction hook bracket was formed. 4. The rear structure of the vehicle body according to any one of 3.   5. The rear structure of the vehicle body according to claim 4, wherein the tow hook bracket has left and right bracket side fastening flanges that project outward along the garter inner panel. The tow hook bracket includes a rod-shaped attachment part to which the tow hook is detachably attached, and a bracket part to which the attachment part is fixed,
The bracket part has a base part formed with a recess for receiving a lower part of the attachment part, and left and right bracket side fastening flanges that project outward and are fastened by the left and right frame body side fastening flanges and bolts. The rear structure of the vehicle body according to claim 4 or 5, wherein The tow hook bracket includes a rod-shaped attachment part to which the tow hook is detachably attached, and a bracket part to which the attachment part is fixed,
The rear part structure of a vehicle body according to any one of claims 1 to 6, wherein the bracket portion has a front edge folded portion facing a front end of the attachment portion.   The tow hook bracket includes a rod-shaped attachment portion to which the tow hook is detachably attached, and the attachment portion is fixed to the frame body portion so as to protrude rearward from the rear end of the rear frame. The rear structure of the vehicle body according to any one of claims 1 to 7, wherein the rear structure is a vehicle body.   The rear structure of the vehicle body according to any one of claims 1 to 8, wherein the frame body portion has a wider width than the rear frame.

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