JP5998619B2 - Rear body structure of the vehicle - Google Patents

Description

  The present invention relates to a rear vehicle body structure of a vehicle, and more specifically, a pillar portion formed on a side panel inner of a rear portion of the vehicle body and extending upward from an upper front portion of a rear wheel house, and joined to an outer portion in the vehicle width direction of the pillar portion. The present invention relates to a rear body structure of a vehicle including the pillar reinforcement formed and an outer reinforcing member that connects an outer portion in the vehicle width direction of a side panel inner and a rear wheel house behind the pillar portion.

  2. Description of the Related Art Conventionally, a vehicle suspension is provided with a damper device for attenuating vibrations and shocks during traveling in order to ensure occupant handling stability. This damper device is disposed so as to incline in the vehicle width direction as it extends upward, and its upper end is supported by a suspension housing (suspension tower) formed in the upper portion of the wheel house. Therefore, a component force inward in the vehicle width direction of the damper load acting in the vertical direction on the suspension housing acts on the vehicle body, and this component force causes the side panel inner near the suspension housing to fall inward in the vehicle width direction. There was a problem of so-called falling down.

  The rear suspension housing at the rear of the vehicle body is provided at a lower position on the vehicle compartment side close to the rear pillar portion formed on the side panel inner in terms of the vehicle body structure, so that a vertical damper load acting on the rear suspension housing is occupant. By reducing the load concentrated on the side panel inner (rear pillar part) (component force toward the inside in the vehicle width direction) through the rear pillar part that forms the inner wall of the entrance / exit, and dispersed to the vehicle body strength member such as the roof rail member, The side panel inner was prevented from falling down.

  As shown in FIG. 14, the rear body structure of the vehicle of Patent Document 1 includes a suspension housing reinforcement 92 that connects an outer portion of the side panel inner panel 90 in the vehicle width direction and a suspension tower, and a side panel inner panel 90. A pillar reinforcement 91 that reinforces and a beltline reinforcement 94 that reinforces the beltline portion 93 at the top of the suspension tower, and includes a side panel inner panel 90, a suspension housing reinforcement 92, and a beltline reinforcement. 94, a second closed section formed by the side panel inner panel 90 and the suspension housing reinforcement 92, the side panel inner panel 90 and the bell. And a third closed section formed by a line reinforcement 94 and the suspension housing reinforcement 92 is provided, it is configured by connecting the first to third closed section in the vehicle longitudinal direction.

  On the other hand, the rear seat of the vehicle body is provided with a rear seat on which an occupant can be seated. The rear seat is supported by the vehicle body, and is pivotally supported by the rear end portion of the seat cushion and can be laid down. And a seat back. The side panel inner panel that forms the passenger entrance / exit is provided with a seat striker for holding the seat back in a standing posture when the seat back is rotated to the upright state.

  The vehicle rear side structure of the vehicle of Patent Document 2 includes a quarter inner lower panel (pillar extension) connected to the rear wheel house, and a roof side inner panel (pillar inclined portion) provided from the upper part of the quarter inner lower panel over the roof. And a belt anchor reinforcing panel provided over the roof from the upper part of the quarter inner lower panel between the roof side inner panel and the side panel outer, and a retainer provided over the rear wheel house from the lower part of the belt anchor reinforcing panel. A seat striker mounting bracket is fastened via a fastener to a portion where the quarter inner lower panel, the roof side inner panel, the belt anchor reinforcing panel, and the retainer panel are overlapped. This improves the mounting strength of the seat striker.

Japanese Utility Model Publication No. 4-26305 Patent No. 3307849

  Normally, like the vehicle body rear side structure of the vehicle of Patent Document 2, the pillar extension corresponding to the base end portion of the rear pillar is provided corresponding to the top of the rear wheel house, so that the rear seat is directed to the vehicle interior side. It avoids the bulging wheel house and is located on the front side of the vehicle from the rear pillar. In the case of such a vehicle body structure, the rear end portion of the rear entrance / exit is formed on the rear side of the vehicle body from the rear seat, the rear opening portion that does not contribute to the passenger's getting on / off performance is enlarged, the vehicle body rigidity, the vehicle design, etc. There is a risk of affecting.

  In order to maintain the rigidity of the vehicle body while ensuring passenger occupancy, it is necessary to arrange the seat back of the rear seat and the rear pillar so that they overlap in a side view, and then fix the seat striker to the base end of the rear pillar. preferable. Therefore, most of the rear wheel house is arranged on the rear side of the vehicle body with respect to the rear end portion of the rear pillar, and the pillar inclined portion of the rear pillar is formed so as to extend upward from the front upper part of the rear wheel house, thereby A rear seat arrangement that can achieve both passenger occupancy and vehicle body rigidity and vehicle body rigidity can be realized without widening.

  However, when the rear pillar is formed to extend upward from the front upper part of the rear wheel house in order to achieve both the passenger occupancy and the vehicle body rigidity described above, the damper load transmission path is the upstream part of the path (rear suspension housing). And a downstream portion of the path (pillar inclined portion) are formed in a crank shape separated in the front-rear direction. Even when the lower portion of the pillar reinforcement 91 is extended to the rear side of the vehicle body and connected to the suspension housing reinforcement 92 as in the rear vehicle body structure of the vehicle of Patent Document 1, it acts on the rear suspension housing. Since the damper load to be distributed to the pillar inclined portion is dispersed from the pillar extension portion to the side panel inner, it is difficult to transmit the damper load to the rear pillar, particularly to the front portion of the pillar inclined portion separated from the suspension housing. Therefore, since the component force of the damper load toward the inner side in the vehicle width direction is concentrated on the side panel inner, the side panel inner may fall inward.

  As in Patent Document 1, in the case of a vehicle body structure having a beltline reinforcement in advance, it is possible to reinforce the pillar extension by extending the front end of the beltline reinforcement to the front side. The damper load transmitted from the rear suspension housing to the rear pillar over the rear portion can be increased. However, a space for placing a large reinforcing member that extends in the front-rear direction, such as a beltline reinforcement, is required between the lower end of the quarter window and the top of the rear wheel house, and the weight of the vehicle increases as the number of parts increases. There is a risk of increasing manufacturing costs.

  In addition, since the damper device has a tendency to lengthen the damper device by integrating the bump strap rubber, the vertical length of the damper device increases, and the suspension housing increases with the increase in the vertical length of the damper device. The number of cases in which the top of is formed at a higher position than in the past is increasing. Therefore, the space between the lower end of the quarter window and the top of the rear wheel house is narrow, and there is a possibility that a space for arranging a reinforcing member such as a belt line reinforcement may not be secured on the layout.

  Therefore, the present invention provides a vehicle body structure in which a suspension housing and a pillar portion at the upper part of a rear wheel house are separated in the front-rear direction, and the rear portion of the vehicle can prevent the side panel inner from falling down without increasing the number of parts. The purpose is to provide a vehicle body structure.

The rear body structure of the vehicle according to the present invention includes a pillar portion formed on a side panel inner at the rear portion of the vehicle body and extending upward from the front upper portion of the rear wheel house, and a pillar joined to an outer portion in the vehicle width direction of the pillar portion. A vehicle rear body structure comprising a reinforcement and an outer reinforcing member that connects a rear side of the side panel inner of the side panel inner and a rear wheel house behind the pillar portion, wherein the pillar reinforcement is provided. The front edge portion and the rear edge portion are joined to the pillar portion of the side panel inner respectively, and the pillar reinforcement is joined to the outer reinforcement member at the extension portion extended rearward to the outer reinforcement member, and the outer reinforcement The upper edge portion, the front edge portion, and the rear edge portion of the member are joined to the side panel inner to form a closed cross section, and the outer side The front end of the upper edge of the strong members, the corresponding first hole which is surrounded by a side panel inner is formed, foam adhesive having a base in the closed within surface portion formed by the said outer reinforcement member and the side panel inner The material includes a first protruding portion that passes through the first hole portion and adheres to the outer reinforcing member, the pillar reinforcement, and the side panel inner .

According to the above configuration, the adhesion sites because adhering the outer reinforcing member and the pillar reinforcement and the side panel inner by the first protruding portion of the foam adhesive material, the outer reinforcing member and the pillar reinforcement and the side panel inner As a result, the load from the suspension damper can be efficiently transmitted to the pillar portion, and the torsional rigidity in the left-right direction and the up-down direction of the vehicle body is improved.
Therefore , it is possible to prevent the side panel inner from falling down without increasing the number of parts.

  In one embodiment of the present invention, a side panel outer is provided at the rear of the vehicle body, a second hole is formed at the rear end of the upper edge of the outer reinforcing member, and the foamed adhesive passes through the second hole. The second protruding portion is attached to the outer reinforcing member, the side panel inner, and the side panel outer.

  According to the said structure, the 2nd protrusion part of a foaming adhesive material adhere | attaches an outer side reinforcement member, a side panel inner, and a side panel outer. That is, it is possible to further suppress deformation by connecting the outer reinforcing member, the side panel inner, and the side panel outer at the vicinity of the second protruding portion.

In one embodiment of the present invention, the first hole is formed to be larger than the second hole.
According to the said structure, since the 1st hole part was largely formed with respect to the 2nd hole part, the adhesion | attachment by a 1st protrusion part becomes stronger, and it can transmit much more load to a pillar part.

In one embodiment of the present invention, the vertical length on the inner side in the vehicle width direction of the first hole is longer than the vertical length on the outer side in the vehicle width direction when viewed from the front of the vehicle. It is.
According to the above configuration, since the vertical length of the first hole portion on the inner side in the vehicle width direction is long, the first protruding portion of the foamed adhesive material is mostly on the side panel inner side, and relative to this, the pillar reinforcement As a result, it is possible to transmit more load to the side panel inner, and as a result, it is possible to transmit more load to the pillar portion.

  In one embodiment of the present invention, a third hole portion is formed on the vehicle outer side of the first hole portion, the edge portion including an outer reinforcing member, a pillar reinforcement, and a side panel inner, and a foam adhesive However, a third protruding portion that passes through the third hole portion and adheres to the outer reinforcing member, the pillar reinforcement, and the side panel outer is provided.

According to the said structure, the 3rd protrusion part of a foaming adhesive material adhere | attaches an outer side reinforcement member, a pillar reinforcement, and a side panel outer.
In many cases, the side window is located above the third hole, and according to the above configuration, a load can be transmitted to the side window that is a rigid member via the side panel outer and the third protrusion. This can further enhance the load distribution effect.

  According to the present invention, in the vehicle body structure in which the suspension housing and the pillar portion at the upper part of the rear wheel house are separated in the front-rear direction, there is an effect that it is possible to prevent the side panel inner from falling down without increasing the number of parts. .

FIG. 4 is an external side view showing a rear body structure of a vehicle according to the present invention 1 is a side view showing the state in which the side panel outer is removed from FIG. 2 is a cross-sectional view taken along line AA in FIG. 2 is a cross-sectional view taken along line BB in FIG. CC sectional view taken on line CC in FIG. DD sectional view taken along line D-D in FIG. 2 is an enlarged view of the main part of FIG. Perspective view around the gusset showing the gusset viewed obliquely from the front Perspective view around the gusset showing the gusset viewed obliquely from the rear Enlarged view of the main part of FIG. Explanatory drawing which shows the 1st, 2nd, 3rd protrusion part Explanatory drawing which shows a 1st protrusion part Explanatory drawing which shows a 2nd protrusion part Side view showing a rear vehicle body structure of a conventional vehicle

In the vehicle body structure in which the suspension housing and pillar part at the top of the rear wheel house are separated in the front-rear direction, the purpose of preventing the side panel inner from falling down without increasing the number of parts is formed in the side panel inner at the rear of the vehicle body A pillar portion extending upward from the front upper portion of the rear wheel house, a pillar reinforcement joined to an outer portion in the vehicle width direction of the pillar portion, and a vehicle width direction of the side panel inner behind the pillar portion In a rear vehicle body structure including an outer reinforcing member that connects an outer portion and a rear wheel house, a front edge portion and a rear edge portion of the pillar reinforcement are respectively joined to a pillar portion of a side panel inner. The pillar reinforcement is extended in the rear part extending to the outer reinforcing member. The outer reinforcing member is joined to the side reinforcing member, and the upper edge portion, the front edge portion, and the rear edge portion of the outer reinforcing member are joined to the side panel inner to form a closed cross-section portion. The front hole is formed with a first hole portion surrounded by a corresponding side panel inner, and a foamed adhesive having a base in a closed section formed by the outer reinforcing member and the side panel inner is formed by the first hole. This configuration is realized by including a first protruding portion that passes through the portion and adheres to the outer reinforcing member, the pillar reinforcement, and the side panel inner .

An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external side view showing the rear vehicle body structure, FIG. 2 is a side view of the vehicle with the side panel outer removed from FIG. 1, and FIG. 3 is an AA line arrow in FIG. 4 is a sectional view taken along line BB in FIG. 2, and FIG. 5 is a sectional view taken along line CC in FIG.

In FIG. 1, the rear body structure of the vehicle is connected to the roof rail portion 1 extending in the vehicle front-rear direction at the upper portion, the side sill portion 2 extending in the vehicle front-rear direction at the lower portion, and the roof rail portion 1 extending upward from the belt line portion. There is provided a door opening 4 for a rear seat occupant surrounded by a rear pillar portion 3 (so-called quarter pillar) and a center pillar portion (not shown).
Further, a rear end pillar portion 5 (so-called rear pillar) that is inclined in a front-rear and rear-lower shape is continuously formed behind the roof rail portion 1 described above, and the rear end pillar portion 5, the roof rail portion 1, and the rear pillar portion. 3 and a belt line portion are provided with side windows 6 (so-called quarter window glass).
Further, a wheel house portion 7 is provided corresponding to a rear wheel (not shown).

  The side panel outer 8 as the outer plate of the rear part of the vehicle body includes a roof rail outer 9, a side sill outer 10, a pillar outer 11, and an outer plate 13 positioned on the vehicle outer side of the wheel house outer 12 (see FIGS. 2 and 3). Are integrally formed.

  The wheel house part 7 as a rear wheel house is formed by joining and fixing a wheel house inner 14 and a wheel house outer 12 as shown in FIGS. 2 and 3, and as shown in FIG. The wheel house inner 14 includes a vertical wall portion 14a extending in the vertical direction, and an upper piece portion 14b extending outward from the upper end of the vertical wall portion 14a in the vehicle width direction. The lower portion of the vertical wall portion 14a described above. The rear floor 17 is connected and fixed via a rear side frame upper 15 and a rear side frame lower 16.

Here, the rear side frame upper 15 and the rear side frame lower 16 described above are vehicle body strength members in which a rear side closed cross section 18 extending in the front-rear direction of the vehicle is formed by the both 15 and 16.
A damper 19 is disposed between the upper piece 14b of the wheel house inner 14 and a rear suspension (not shown) so that the upper portion is located inward in the vehicle width direction. The suspension housing 20 is formed by the upper piece portion 14b and the vertical wall portion 14a of the wheel house inner 14 corresponding to the above.
The above-mentioned wheel house inner 14 is formed in a partial bowl shape so as to expand toward the vehicle compartment 21 side, and corresponds to the base part of the partial bowl shape, and is positioned on the outer side of the upper piece 14b of the wheel house inner 14. A side panel inner 22 is integrally or integrally provided.

  FIG. 6 is a cross-sectional view taken along the line D-D in FIG. 1. The rear pillar portion 3 described above is formed on the side panel inner 22 at the rear of the vehicle body and extends upward from the front upper portion of the wheel house portion 7. A pillar reinforcement 24 (hereinafter simply abbreviated as “pillar rain 24”) joined to an outer portion of the pillar inner 23 in the vehicle width direction, and the pillar outer 11 described above.

As shown in FIG. 6, the above-described pillar rain 24 has a hat-like cross-sectional shape, and the front edge portion 24 a and the rear edge portion 24 b of the pillar rain 24 are bonded and fixed to the pillar inner 23, respectively.
Similarly, as shown in FIG. 6, the above-described pillar outer 11 is also formed in a hat shape in cross section, and the front edge portion 11 a and the rear edge portion 11 b of the pillar outer 11 are joined and fixed to the pillar rain 24, respectively. Yes.
As shown in the figure, pillar closed sections 25 and 26 extending in the vertical direction are formed between the pillar inner 23 and the pillar rain 24 and between the pillar rain 24 and the pillar outer 11, respectively.

Further, as shown in FIG. 2, the upper edge portion 24 c of the pillar rain 24 is bonded and fixed to the roof rail portion 1.
As shown in FIG. 2, a gusset 27 is provided as an outer reinforcing member that connects an outer portion in the vehicle width direction of the side panel inner 22 and a central portion in the front-rear direction of the wheel house outer 12 behind the rear pillar portion 3 described above. Yes.

Further, as shown in FIG. 3, corresponding to the gusset 27 and the inner and outer directions, an inner reinforcing member 28 that connects the inner part in the vehicle width direction of the side panel inner 22 and the central part in the front and rear direction of the wheel house inner 14 is provided. ing.
The above-described inner reinforcing member 28 includes an upper reinforcing portion 28a, a horizontal reinforcing portion 28b, a lower reinforcing portion 28c, and a joining flange portion integrally formed at the front and rear ends thereof, and the joining flange portion is side-mounted. The panel inner 22, the upper piece 14b of the wheel house inner 14, and the vertical wall 14a are fixed by welding.

  7 is an enlarged view of the main part of FIG. 2, FIG. 8 is a perspective view showing the structure of FIG. 7 as viewed from the front side of the vehicle, and FIG. 9 is a perspective view of the structure of FIG. The gusset 27 as the outer reinforcing member has a substantially hat-shaped cross section, the upper edge portion 27a is connected to the vehicle width direction outer side portion 22a of the side panel inner 22, and the lower edge portion 27b is a wheel house. It is connected to the outer 12.

  The gusset 27 described above overlaps the main body portion 27c, the front piece 27d extending inward in the vehicle width direction from the front end of the main body portion 27c, and the rear pillar portion 3 from the inner end of the front piece 27d in the vertical direction. The joint flange portion 27e extending forward to the position, the rear piece 27f extending inward in the vehicle width direction from the rear end of the main body portion 27c, and the joint flange portion 27g extending rearward from the inner end of the rear piece 27f are integrally folded. It is formed by bending.

Here, openings 27h and 27h are formed in the main body 27c of the gusset 27, openings 27i and 27i are formed in the front piece 27d, and openings 27j and 27j are also formed in the rear piece 27f.
The upper edge portion 27a of the gusset 27, the joining flange portion 27e as the front edge portion, and the joining flange portion 27g as the rear edge portion are joined to the side panel inner 22 to form the closed cross-section portion 29. ing.

On the other hand, as shown in FIG. 2, the pillar rain 24 described above has an extension portion 24d extending backward to the gusset 27, and the rear end portion of the extension portion 24d is joined to the main body portion 27c of the gusset 27. In addition, the front edge portion 24a of the pillar rain 24 and the portion corresponding to the extended portion 24d of the rear edge portion 24b are joined and fixed to the side panel inner 22, respectively.
An opening 24e is also formed in the extension 24d of the pillar rain 24 described above.

  By the way, as shown in FIGS. 4 and 5, a foamed adhesive material X having a base 30 is disposed in an upper portion in a closed section 29 formed by a gusset 27 as an outer reinforcing member and a side panel inner 22. Has been.

  A clip 31 is integrally formed in advance with the base 30 described above, and the clip 31 is inserted and protruded outward in the vehicle width direction from a clip locking hole (not shown) formed in the main body 27c of the gusset 27. Thus, the base 30 is positioned and fixed via the clip 31, and the above-mentioned foamed adhesive material X is foamed by effectively using heat during drying in the vehicle painting process.

  As shown in FIGS. 4 and 8, the first hole 41 surrounded by the corresponding side panel inner 22 is formed at the front end of the upper edge portion 27a of the gusset 27 and at the upper end of the front piece 27d. Has been.

  As shown in FIGS. 5, 9, and 10, the second hole surrounded by the corresponding side panel inner 22 at the rear end of the upper edge portion 27 a of the gusset 27 and the upper end of the rear piece 27 f. A portion 42 is formed.

  As shown in FIGS. 2 and 7, on the vehicle outer side of the first hole portion 41, the front edge of the upper edge portion 27a of the gusset 27 and the slant portion 24f at the upper end of the rear portion of the extension 24d in the pillar rain 24 and the side panel A third hole 43 composed of the inner 22 is formed.

  Here, as is apparent from the comparison between the first hole 41 shown in FIG. 8 and the second hole 42 shown in FIG. 9, the first hole 41 is formed to be larger than the second hole 42. The amount of protrusion of the foamed adhesive X from the first hole 41 is configured to be larger than the amount of protrusion of the foamed adhesive X from the second hole 42.

Further, as shown in a front view in FIG. 4, in the vehicle front view, the vertical length on the inner side in the vehicle width direction of the first hole portion 41 is longer than the vertical length on the outer side in the vehicle width direction. Thus, the amount of the foamed adhesive X protruding from the first hole 41 is configured such that the side panel inner 22 side is larger than the pillar rain 24 side.
Moreover, as shown in FIGS. 11 and 12, the foamed adhesive material X that foams by effectively using heat during drying in the vehicle painting process passes through the first hole 41, the gusset 27, the pillar rain 24, and the side. A first protruding portion X1 that is bonded to the panel inner 22 is provided.

  As shown in FIGS. 11 and 13, the foamed adhesive material X includes a second protruding portion X <b> 2 that passes through the second hole portion 42 and adheres to the gusset 27, the side panel inner 22, and the side panel outer 8. Yes.

As shown in FIG. 13, the end portion of the side window 6 is provided with a wind molding 32 for sealing with the body. The protruding end portion of the second protruding portion X2 shown in FIG. 32 is set in a range hidden.
That is, even if thermal distortion occurs in the side panel outer 8 due to the heated foamed adhesive, the appearance of the second protruding portion X2 is prevented from being deteriorated by setting the protruding end portion as described above. Can do.
Furthermore, as shown in FIG. 11, the foamed adhesive material X includes a third protruding portion X <b> 3 that passes through the third hole 43 described above and adheres to the gusset 27, the pillar rain 24, and the side panel outer 8.
In FIG. 3, reference numeral 33 denotes a lift gate opening. In the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inward in the vehicle width direction, and arrow OUT indicates the outward in the vehicle width direction.

  Thus, the rear vehicle body structure of the vehicle of the above embodiment is formed in the side panel inner 22 at the rear of the vehicle body, and the rear pillar portion 3 extending upward from the front upper portion of the rear wheel house (see the wheel house portion 7). The pillar rain 24 joined to the outer portion in the vehicle width direction of the rear pillar portion 3, the outer portion in the vehicle width direction of the side panel inner 22 behind the rear pillar portion 3, and the rear wheel house (see the wheel house outer 12). And a rear vehicle body structure including an outer reinforcing member (see gusset 27) for connecting the front and rear ends of the vehicle, wherein a front edge portion 24a and a rear edge portion 24b of the pillar rain 24 are respectively pillar portions of the side panel inner 22. The pillar rain 24 is joined to the pillar inner 23 (see the pillar inner 23), and the extension 24d is extended rearward to the outer reinforcing member (gusset 27). The upper edge portion 27a, the front edge portion (see the joining flange 27e), and the rear edge portion (see the joining flange 27g) of the outer reinforcement member (gusset 27) are joined to the outer reinforcing member (gusset 27), respectively. 22 to form a closed cross section 29, and a first hole 41 is formed at the front end of the upper edge portion 27a of the outer reinforcing member (gusset 27), and the outer reinforcing member (gusset 27) and the side A foam adhesive X having a base 30 in a closed cross-section 29 formed by the panel inner 22 passes through the first hole 41 and is bonded to the outer reinforcing member (gusset 27) and the pillar rain 24. An overhanging portion X1 is provided (see FIGS. 2, 6, and 12).

According to this configuration, since the outer reinforcing member (gusset 27) and the pillar rain 24 are bonded by the first protruding portion X1 of the foamed adhesive material X, the bonding portion between the outer reinforcing member (gusset 27) and the pillar rain 24 is bonded. As a result, the load from the damper 19 of the rear suspension can be efficiently transmitted to the rear pillar portion 3, and the torsional rigidity in the left-right direction and the up-down direction of the vehicle body is improved.
Therefore, it is possible to prevent the side panel inner from falling down without increasing the number of parts.
Further, a side panel outer 8 is provided at the rear of the vehicle body, a second hole 42 is formed at the rear end of the upper edge 27a of the outer reinforcing member (gusset 27), and the foamed adhesive X is formed by the second hole 42. And a second protruding portion X2 that adheres to the outer reinforcing member (gusset 27), the side panel inner 22 and the side panel outer 8 (see FIG. 13).

According to this structure, the 2nd protrusion part X2 of the foaming adhesive material X adhere | attaches the outer side reinforcement member (gusset 27), the side panel inner 22, and the side panel outer 8. FIG. That is, it is possible to further suppress deformation by connecting the outer reinforcing member (gusset 27), the side panel inner 22 and the side panel outer 8 in the vicinity by the second protruding portion X2.
Further, the first hole 41 is formed to be larger than the second hole 42 (see FIGS. 8 and 9).

According to this configuration, since the first hole portion 41 is formed larger than the second hole portion 42, adhesion by the first protruding portion X1 becomes stronger, and more load is transmitted to the rear pillar portion 3. Can do.
In addition, the vertical length on the inner side in the vehicle width direction of the first hole 41 is longer than the vertical length on the outer side in the vehicle width direction when the vehicle is viewed from the front (see FIG. 4). .

According to this configuration, since the vertical length of the first hole portion 41 on the inner side in the vehicle width direction is long, the first protruding portion X1 (see FIGS. 11 and 12) of the foamed adhesive X is located on the side panel inner 22 side. On the other hand, the pillar rain 24 side is relatively reduced, and more load can be transmitted to the side panel inner 22, and as a result, more load can be transmitted to the rear pillar portion 3.
Further, a third hole portion 43 having an edge portion constituted by the outer reinforcing member (gusset 27), the pillar rain 24, and the side panel inner 22 is formed on the vehicle outer side of the first hole portion 41, and the foam adhesive X However, it has a third protruding portion X3 that passes through the third hole 43 and adheres to the outer reinforcing member (gusset 27), the pillar rain 24, and the side panel outer 8 (see FIG. 11).

According to this configuration, the third protruding portion X3 of the foamed adhesive material X bonds the outer reinforcing member (gusset 27), the pillar rain 24, and the side panel outer 8.
In many cases, the side window 6 is located above the third hole 43, and according to the above configuration, the side window 6 that is a rigid member is also loaded via the side panel outer 8 and the third protrusion X3. Thus, the load distribution effect can be further enhanced.
Further, as disclosed in the embodiment, a gusset 27 is provided between the outer side in the vehicle width direction of the side panel inner 22 and the wheel house outer 12 corresponding to the position where the suspension housing 20 is formed. When the inner reinforcing member 28 is provided between the inner side in the vehicle width direction of the side panel inner 22 and the wheel house inner 14 corresponding to the position and the inner and outer directions, the side panel is supported by the cooperation of the gusset 27 and the inner reinforcing member 28. The inner falling of the inner 22 can be prevented more reliably.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The pillar portion of the present invention corresponds to the rear pillar portion 3 of the embodiment,
Similarly,
The rear wheel house corresponds to the wheel house part 7,
The pillar reinforcement corresponds to the pillar rain 24,
The pillar part of the side panel inner corresponds to the pillar inner 23,
The outer reinforcing member corresponds to the gusset 27,
The front edge portion of the outer reinforcing member corresponds to the joint flange portion 27e of the gusset 27,
The rear edge portion of the outer reinforcing member corresponds to the joint flange portion 27g of the gusset 27,
The present invention is not limited to the configuration of the above-described embodiment.

  As described above, the present invention includes a pillar portion formed on the side panel inner of the rear portion of the vehicle body and extending upward from the front upper portion of the rear wheel house, and the pillar joined to the outer portion in the vehicle width direction of the pillar portion. This is useful for a rear body structure of a vehicle including reinforcement and an outer reinforcing member that connects an outer portion in the vehicle width direction of the side panel inner and a rear wheel house behind the pillar portion.

3 ... Rear pillar part (pillar part)
7… Wheel house (rear wheel house)
8 ... Side panel outer 22 ... Side panel inner 23 ... Pillar inner (pillar part of side panel inner)
24 ... Pillar Rain (Pillar Rain Force)
24a ... front edge 24b ... rear edge 24d ... extension 27 ... gusset (outer reinforcement member)
27a ... Upper edge 27e ... Joining flange (front edge)
27g ... Joint flange (rear edge)
29 ... Closed section 30 ... Base 41 ... 1st hole 42 ... 2nd hole 43 ... 3rd hole X ... Foam adhesive X1 ... 1st protrusion part X2 ... 2nd protrusion part X3 ... 3rd protrusion part

Claims (5)

A pillar portion formed on the side panel inner at the rear of the vehicle body and extending upward from the front upper portion of the rear wheel house;
A pillar reinforcement joined to the outer portion of the pillar portion in the vehicle width direction;
An outer reinforcing member for connecting the outer side portion of the side panel inner and the rear wheel house behind the pillar portion;
A rear body structure of a vehicle with
The front edge portion and the rear edge portion of the pillar reinforcement are respectively joined to the pillar portion of the side panel inner,
The pillar reinforcement is joined to the outer reinforcing member at an extension extending rearward to the outer reinforcing member,
The upper edge portion, the front edge portion, and the rear edge portion of the outer reinforcing member are joined to the side panel inner to form a closed cross section,
A first hole surrounded by a corresponding side panel inner is formed at the front end of the upper edge of the outer reinforcing member,
A foamed adhesive having a base in a closed cross section formed by the outer reinforcing member and the side panel inner,
A rear body structure of a vehicle including a first protrusion that passes through the first hole and adheres to an outer reinforcing member, a pillar reinforcement, and a side panel inner . Side panel outer at the rear of the vehicle body,
A second hole is formed at the rear end of the upper edge of the outer reinforcing member;
2. The rear body structure of the vehicle according to claim 1, wherein the foamed adhesive includes a second protrusion that adheres to the outer reinforcing member, the side panel inner, and the side panel outer through the second hole. The rear body structure of the vehicle according to claim 2, wherein the first hole is formed to be larger than the second hole. The vertical length on the inner side in the vehicle width direction of the first hole is longer than the vertical length on the outer side in the vehicle width direction when viewed from the front of the vehicle. The rear body structure of the vehicle described in 1. On the vehicle outer side of the first hole portion, a third hole portion is formed in which an edge portion is constituted by an outer reinforcing member, a pillar reinforcement, and a side panel inner,
The vehicle according to any one of claims 1 to 4, wherein the foamed adhesive includes a third protrusion that adheres to the outer reinforcing member, the pillar reinforcement, and the side panel outer through the third hole. Rear body structure.

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