JP2018176786A - Vehicular rear vehicle body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular rear vehicle body structure capable of improving the rigidity of a trunk hinge portion, improving a quality when a trunk lid is opened and closed, and improving a vehicle body rigidity relative to torsion.SOLUTION: A rear vehicle body structure is for a vehicle which is a notchback type that has a trunk room in the rear portion of a vehicle body, and which has both right and left ends of a partition portion that divides the interior of the vehicle and the trunk room connected and fastened to internal side walls of the interior of the vehicle. This rear vehicle body structure is provided with a closed cross-section S along the back-and-forth direction of the vehicle at both ends of the partition portion 8.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a notch back type vehicle having a trunk room at the rear of the vehicle body, and a rear body structure of the vehicle in which left and right end portions of a partition that divides the passenger compartment and the trunk room are connected and fixed to side wall sections.

Conventionally, in a so-called notch back type vehicle having a trunk room at the rear of the vehicle body, a partition portion is provided which divides the passenger compartment and the trunk room.
As a vehicle of this type, a vehicle having a vehicle body structure disclosed in, for example, Patent Document 1 is known.
In the vehicle of Patent Document 1, a rear package tray to which a speaker or the like is attached is provided at the rear of the rear seat between the substantially middle height portions of the left and right side walls at the rear of the vehicle body. The rear package tray is provided with a cross member extending in the vehicle width direction along the front edge to improve the rigidity. On both sides of the rear package tray and the cross member, coupling members are provided for coupling the side panels constituting the vehicle body side wall.

JP, 2009-23367, A

  In the technology described in the above-mentioned Patent Document 1, the connecting member for connecting the rear package tray and the both sides of the cross member is not provided with a closed cross section along the longitudinal direction of the vehicle body. I could not secure it.

  An object of the present invention is to provide a rear vehicle body structure of a vehicle capable of improving the rigidity of a trunk hinge attachment portion, improving the quality at the time of opening and closing of a trunk lid, and improving the vehicle rigidity against twisting.

  In order to solve the above problems, the present invention is a notch back type vehicle having a trunk room at the rear of the vehicle body, and both left and right end portions of a partition part partitioning the car interior and the trunk room are connected and fixed to a car interior side wall part In the rear body structure of the vehicle, a closed cross-sectional structure is provided at both end portions of the partition portion along the longitudinal direction of the vehicle.

  According to the present invention, the rigidity of the joint portion can be improved and the torsional rigidity of the vehicle body can be improved by providing the closed cross-sectional structure at the joint portion between the partition portion and the side wall portion inside the vehicle compartment.

It is a perspective view which removes and shows a roof part by the rear part vehicle body structure of the vehicle by embodiment of this invention. It is a perspective view which expands and shows the X section of FIG. It is a top view which shows the trunk hinge part of FIG. It is the sectional view on the AA line of FIG. It is the BB sectional drawing of FIG. It is a front view which shows the inner side structure of the quarter pillar part of the vehicle body left side. It is the perspective view which looked at a trunk hinge from the vehicle body lower surface side.

The present invention is applied to a rear body of a vehicle which is a notch back type vehicle having a trunk room at the rear of the vehicle body and in which both left and right end portions of a partition that divides the vehicle interior and the trunk room are connected and fixed to a side wall Embodiments of the invention will be described in detail with reference to FIGS. 1 to 7.
FIG. 1 is a perspective view showing a right rear portion of a vehicle body attached with a trunk hinge, with a roof panel and the like removed, and FIG. 2 is an enlarged view of a portion X thereof.
Reference numeral 1 denotes a side body panel constituting a right side vehicle body side, provided with door openings 1a and 1b for attaching a front door and a rear door (not shown). A quarter pillar inner panel 2 is provided at the upper side and a wheel house 3 is provided at the lower side on the rear side of the door opening 1 b to which the rear door is attached. A seat belt reinforcement 4 and a rear pillar inner reinforcement 5 are provided vertically on the indoor side of the quarter pillar inner panel 2 which is a side wall of the vehicle interior.

  The side body panel 1, together with the left side body panel (not shown), constitutes a cabin 6 serving as a vehicle cabin. At the rear of the cabin 6, a trunk room 7 serving as a luggage compartment is provided. The trunk room 7 is separated from the cabin 6 by a partition portion 8 provided in the vehicle width direction, and the upper surface of the trunk room 7 is separated from the outside by an openable trunk lid 9.

The partition portion 8, the partition front wall _81, a partition top wall _82, and a partition transverse walls 8 _3. The partition front wall _81, as shown in FIGS. 2 and 7, a strip of the partition front member 10 extending in the vehicle width direction, is provided on the outer side of the partition front member 10, the front wall portion in the vehicle longitudinal direction A partition front panel 11 is formed so as to be bent from the surface 11a to the top surface 11b and extends in the vehicle width direction. The partition front member 10 is joined to the back surface side of the front wall 11a of the partition front panel 11 by providing a gap not shown in the vehicle width direction, and forms a closed cross-sectional structure in the vehicle width direction.
Partition the upper wall portion ₈₂ includes a partition panel 12 joined to the rear side of the partition front panel 11, and a partition rear member 13 which is joined to the rear side of the partition panel 12. A gap (not shown) is formed between the rear end portion of the partition panel 12 and the partition rear member 13 to form a closed sectional structure in the vehicle width direction.

On the other hand, the partition lateral wall portion 8 ₃ includes a partition front wall part _81, provided by joining so as to extend on both sides of the partition upper wall portion _82, and the partition side front panel 14, constituted by a partition side rear panel 15 It is done. Partition lateral wall 8 ₃ of the upper surface, the partition side rear panel 15, the hinge bracket 17 of the dog leg type of trunk hinges 16 for opening and closing the trunk lid 9 is provided. The partition side rear panel 15 is provided with a hinge bracket opening 15a on the top surface. As shown in FIGS. 3 and 4, mounting flanges 17a on the left and right sides of the hinge bracket 17 are passed through the opening 15a for the hinge bracket, and the mounting flange 17a is overlapped on the back side of the partition side rear panel 15. It is screwed in via a bolt 18 and a nut 18a through a mounting hole (not shown). The bolt 18 and the nut 18a are provided and fixed at two locations at the mounting flange portion 17a inside the vehicle body and at one location at the mounting flange portion 17a outside the vehicle body. One end of the dog-leg type trunk hinge 16 is pivotally supported by the hinge bracket 17, and the other end is fixed to the back side of the trunk lid 9.

  As shown in FIG. 4, the partition side rear panel 15 is formed with a stepped portion 15b directed downward on the side wall side in the vehicle width direction, the tip of the stepped portion 15b is extended downward, and the vehicle width An end 15 c in the direction is joined to the quarter pillar inner panel 2. A panel-shaped reinforcing member 19 is disposed on the upper side of the stepped portion 15b of the partition side rear panel 15, and the partition side rear panel 15, the reinforcing member 19 and the quarter pillar inner panel 2 A closed cross section S of a fixed length is formed along the direction.

It said closed cross-section S is de Partition front wall portion ₈₁ as shown in FIGS. 5 and 7, the partition side front panel 14, and partitions the side front member 14a, the rear pillar inner reinforcement 5 and (cabin side wall portion) first closed cross section (front closed section) S ₁ are formed. Then close section S is the upper wall portion _82, and the reinforcing member 19, and the partition side rear panel 15, a second closed cross section (side closed cross section) at the 5 rear pillar inner reinforcement (vehicle interior side wall portion) S ₂ is formed. Closed cross section S is the upper wall _82, and partition the rear member 13, and the partition side rear panel 15, a quarter pillar or the like (vehicle interior side wall portion) and the de third closed section S ₃ is formed. Second closed cross section S ₂ and the third closed section (rear closed section) S _3, although connected in the embodiment of FIG. 5, by providing the partition wall can be completely separated.

  In the above embodiment, the vehicle is a notch back type vehicle having a trunk room 7 at the rear of the vehicle body, and both left and right end portions of the partition 8 separating the cabin 6 and the trunk room 7 are fixedly connected to the vehicle interior side wall Is applied to the rear body structure of the vehicle. And since the closed cross-sectional structure S was provided in the front-back direction of a vehicle in the both ends of the said partition part 8, the rigidity of a junction part can be improved and the torsional rigidity of a vehicle body can be improved.

Further, said upper wall portion ₈₂ of the partition portion 8 and trunk hinge mounting portion is provided a mounting portion of the hinge bracket 17, the said partition portion 8 end of quarter pillar inner panel 2 side, hinge bracket A stepped portion 15 b is provided which is lowered downward with respect to the mounting surface 17. A reinforcing member 19 is provided on the step portion 15b toward the quarter pillar inner panel (side wall portion) 2 and a closed cross section S along the longitudinal direction of the vehicle with the step portion 15b of the partition portion 8 A structure is provided. In this way, by having the step 15b below the mounting surface of the hinge bracket 17, it becomes easy to support deformation such as sagging of the end of the partition 8 due to the downward load due to the attachment of the trunk lid 9, improving the assembly quality become. Further, by adding a reinforcing member 19, the junction between the partition side rear panel 15 and the quarter pillar inner panel 2 is closed by disposing a plurality of members in the vertical direction by closing the cross section S, deformation of the vehicle body by twisting, etc. It is possible to prevent the stress concentration on the junction point by the input in the vertical direction of the vehicle by the above, and it is possible to increase the junction strength. Furthermore, by reinforcing the end portion of the partition portion 8 by the closed cross-sectional structure, it is possible to suppress the deformation of the joint portion and to reduce the twist itself of the vehicle body.

  A trunk hinge attachment portion which is an attachment portion of the hinge bracket 17 is provided adjacent to the closed cross section S structure, and at least a fixing portion on the closed cross section structure side of the trunk hinge attachment portion is a partition side rear panel of the partition portion 8 15 and fixed together with the reinforcing member 19. Therefore, the rigidity can be improved by closing the trunk hinge attachment portion with the reinforcing member 19 and the cross sectional structure, so that the vibration of the trunk lid 9 due to the traveling vibration or the like can be reduced. Since peristalsis and overstroke of the trunk lid 9 at the time of opening and closing of the trunk lid 9 can also be suppressed, by making the gap between the trunk lid 9 and the vehicle body small, it is possible to improve breakout and lead to quality improvement. Since the attachment rigidity of the trunk lid 9 is improved, it is possible to reduce the generation of noise and the like caused by the vibration of the trunk lid 9.

  The side wall portion of the vehicle interior includes a rear pillar inner reinforcement 5 extending upward from a shock absorber mounting portion of the wheel house 3, and a partition side including a partition side front panel 14 and a partition side rear panel 15 of the partition portion 8. A front portion of a side closed cross section S structure including a panel and the reinforcing member 19 is provided continuously to the rear pillar inner reinforcement 5. Therefore, by continuing the structure with high rigidity from the shock absorber mounting portion of the suspension of the wheel house 3, it is possible to increase the rigidity of the vehicle body by adding to the input from the suspension during traveling, making it difficult to deform the vehicle body. it can.

  The vehicle interior side wall portion includes a quarter pillar inner panel 2, a rear pillar inner reinforcement 5, and a rear seat belt reinforcement 4, and the rear pillar inner reinforcement 5 and the rear seat belt reinforcement 4 are jointed with the reinforcing member 19. It is fixed. Therefore, the strength of the bonding portion can be improved, and deformation can be further suppressed. By letting the stress generated at the joint part escape to the side body 1 through the quarter pillar inner panel 2, it is possible to prevent the stress from being concentrated at the joint part.

The present invention is not limited to the above embodiment, and the reinforcing member 19 and the partition side rear panel 15 form the closed cross section S of the partition portion 8, for example. shape by using those in the vehicle body direction of the long, it is possible to reinforce the entire partition lateral wall 8 ₃ by the reinforcing member. Further, by covering the entire trunk hinge attachment portion with the reinforcing member 19, the rigidity can be further improved. It goes without saying that the present invention can be implemented with appropriate changes without changing the technical scope of the present invention.

1 side body panel 2 quarter pillar inner panel 3 wheel house 4 seat belt reinforcement 5 rear pillar inner force 6 cabin 7 trunk room 8 partition part 8 ₁ partition front wall 8 ₂ partition upper wall 8 ₃ partition lateral wall 9 trunk lid 10 Partition front member 11 Partition front panel 12 Partition panel 13 Partition rear member 14 Partition side front member 15 Partition side rear panel 15a Hinge bracket opening 15b Stepped portion 15c Tip 16 Trunk hinge 17 Hinge bracket 17a Mounting flange portion 18 Bolt 18a Nut 19 reinforcing members S close section S ₁ first closed cross section (front closed cross )
S ₂ second closed cross section (side closed cross section)
S ₃ third closed cross section (rear closed cross section)

Claims (5)

  In a rear body structure of a vehicle, which is a notch back type vehicle having a trunk room at the rear of the vehicle body and in which left and right ends of a partition that divides the vehicle interior and the trunk room are connected and fixed to a side wall of the vehicle interior A rear vehicle-body structure of a vehicle characterized in that a closed cross-sectional structure is provided at both ends along the longitudinal direction of the vehicle.   A trunk hinge attachment portion is provided on the upper wall portion of the partition portion, and a step portion which falls downward with respect to the attachment surface of the trunk hinge attachment portion is provided at an end portion of the partition portion on the side wall portion side It is provided that a reinforcing member is provided on the step portion toward the side wall portion, and a closed cross-sectional structure along the longitudinal direction of the vehicle is provided between the partition portion and the step portion. A rear body structure of a vehicle according to claim 1, characterized in.   The trunk hinge attachment portion is provided adjacent to the closed cross-sectional structure, and at least a fixed portion on the closed cross-sectional structure side of the trunk hinge attachment portion is shared with the partition side panel of the partition portion and the reinforcing member. The rear body structure of a vehicle according to claim 2, characterized in that it is fixed in place.   The vehicle interior side wall portion includes a rear pillar inner reinforcement which extends upward from the shock absorber mounting portion of the wheel house, and a side closed cross-sectional structure including the partition side panel of the partition portion and the reinforcing member The rear body structure of a vehicle according to claim 2 or 3, wherein a front portion of the rear pillar is provided continuously to the rear pillar inner reinforcement.   The vehicle interior side wall portion includes a quarter pillar inner panel, a rear pillar inner reinforcement, and a rear seat belt reinforcement, and the rear pillar inner reinforcement and the rear seat belt reinforcement are fixed together with the reinforcing member. The rear body structure of a vehicle according to any one of claims 1 to 4, characterized in that:

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