JP5879938B2 - Reinforcement structure for side panels at the rear of the vehicle - Google Patents

Description

  The present invention relates to a side panel reinforcing structure provided at the rear of a vehicle.

  Conventionally, a rear shock absorber for a rear suspension that suppresses swinging and vertical movement of the vehicle body while the vehicle is running is attached to the upper surface of a wheel house inner panel reinforced by joining the rear shock absorber reinforcement by spot welding. ing. Further, some vehicles have been proposed in which a strut reinforcement is provided on the upper portion of the wheel house inner panel in order to further reinforce the mounting portion of the rear shock absorber (see, for example, Patent Document 1 and Patent Document 2). ).

On the other hand, the conventional side panel at the rear of the vehicle includes a quarter inner panel, a quarter pillar inner panel having a quarter pillar reinforcement, a wheel house inner panel, and a strut reinforcement. The quarter inner panel is provided with a window, and a rear shock absorber mounting portion is provided on the upper surface of the wheel house inner panel. The rear shock absorber mounting portion is a quarter formed in the longitudinal direction of the vehicle. It is arranged at an intermediate position at the bottom of the window portion of the inner panel.
When the strut reinforcement is joined to the vehicle body above the vehicle to reinforce the mounting portion of the rear shock absorber, the strut reinforcement applies the load from the rear shock absorber via the mounting portion of the rear shock absorber. The upper part of the strut reinforcement is connected obliquely to the lean reinforcement of the rear door so as to be transmitted to and dispersed.

JP 2010-18087 A JP 2006-116990 A

However, in the above-described conventional side panel reinforcement structure, since the strut reinforcement is arranged in an oblique direction, the space area on the front side of the vehicle with respect to the rear strut portion is occupied, which is utilized. There was a problem that the available space would be reduced.
Also, the load from the rear shock absorber is transmitted in an oblique direction via the strut reinforcement, and if the vector is decomposed, the load in the longitudinal direction of the vehicle will increase, so it can withstand this extra load. It was necessary to make it a structure to obtain. Therefore, in the conventional reinforcement structure, rigidity is improved by using thick members for strut reinforcement and rear door reinforcement, but increasing the thickness of the members increases weight and costs. There was a risk of inviting.
Furthermore, when the seat belt retractor is arranged, it is difficult to secure a space, so that the degree of freedom of the installation angle is lowered, which may be disadvantageous in layout. The retractor should be oriented in the direction in which the seat belt is routed, and if the installation angle is deviated, the seat belt may be retracted and pulled out. In addition, if the angle at which the seat belt can be installed is determined, the routing layout is also determined, and there is a problem that the position of the seat belt anchor provided above the vehicle is restricted. Therefore, in order to route the seat belt at a necessary angle, it is necessary to widen the width of the strut reinforcement.

  The present invention has been made in view of such a situation, and an object of the present invention is to smoothly transmit the upward load from the rear shock absorber to the upper part of the vehicle body via the strut reinforcement. The rear part of the vehicle can be dispersed from the lower part of the vehicle through the quarter center panel to the surrounding vehicle body, can prevent deformation of the window part of the quarter inner panel, and can be reduced in weight by forming the strut reinforcement with the shortest shape. It is in providing the reinforcement structure of the side panel.

In order to solve the above-described problems of the prior art, the present invention provides a wheel house inner panel provided with a rear shock absorber mounting portion, the wheel house inner panel, a strut reinforcement with a cross-sectional hat shape, a quarter inner panel, A quarter center panel is provided in a region surrounded by the quarter pillar inner panel or the quarter pillar reinforcement, the lower part of the strut reinforcement is joined to the rear shock absorber mounting portion, and the strut reinforcement In the reinforcing structure of the side panel of the rear part of the vehicle, the upper part of which is joined to the vehicle front-rear direction intermediate part of the window part provided in the quarter inner panel, the quarter center panel and the strut reinforcement To form a closed cross section extending in the vehicle vertical direction, and the quarter center panel is joined in the vicinity of the joint between the quarter inner panel and the quarter pillar inner panel or the quarter pillar reinforcement. The quarter center panel is disposed on the vehicle front side of the strut reinforcement, and the quarter center panel includes a seat belt retractor. Through-holes are disposed, the seat belt routing direction, the extending direction of the front and rear sides opposite to the through-holes, the strut reinforcement base, the quarter inner panel, and the quarter pillar inner panel Or the quarter pillarry Direction of the line connecting the junction of the reinforcement is set to match.

  Further, in the present invention, the interior trim mounting portion that covers the interior side of the side panel is provided on the quarter center panel and the strut reinforcement.

  In the present invention, a rear shock absorber reinforcement is provided on an upper portion of the wheel house inner panel, and the rear shock absorber mounting portion includes a rear shock absorber mounting portion, The rear shock absorber reinforcement has a flange extending upward at the joint with the strut reinforcement.

  In the present invention, the lower portion of the inner side surface of the strut reinforcement extends upward while moving from the inner side to the outer side in the vehicle width direction, and the upper portion of the inner side surface of the strut reinforcement extends substantially directly above. In addition, the upper and lower intermediate portions of the inner side surface of the strut reinforcement are connected while being curved toward the quarter center panel side.

As described above, the vehicle rear panel side panel reinforcing structure according to the present invention includes a wheel house inner panel provided with a rear shock absorber mounting portion, the wheel house inner panel, a strut reinforcement with a cross-sectional hat shape, a quarter A quarter center panel is provided in a region surrounded by the inner panel and the quarter pillar inner panel or the quarter pillar reinforcement, and a lower portion of the strut reinforcement is joined to the rear shock absorber mounting portion, and the strut lean The upper part of the force is joined to the vehicle front-rear direction middle part of the window provided on the quarter inner panel, and the quarter center panel and the strut reinforcement are joined to each other. Therefore, a closed cross section extending in the vehicle vertical direction is formed, and the quarter center panel is joined in the vicinity of the joint between the quarter inner panel and the quarter pillar inner panel or the quarter pillar reinforcement, so that at least the vehicle It has a load distribution surface that spreads upward and diagonally forward.
Therefore, according to the reinforcing structure of the side panel at the rear portion of the vehicle according to the present invention, a highly rigid support column composed of the closed cross-sectional portions of the quarter center panel and the strut reinforcement is obtained. It can be reinforced reliably. In the reinforcing structure of the present invention, the upward load from the rear shock absorber is transmitted to the strut reinforcement, and the load is transmitted from the lower portion of the strut reinforcement to the upper vehicle body. Since the load is gradually distributed from the lower part through the quarter center panel to the load distribution surface on the diagonally upper front side of the vehicle, it is effective for the front half of the window bottom of the quarter inner panel and the quarter pillar inner panel or quarter pillar reinforcement. The load can be distributed. As a result, according to the reinforcing structure of the present invention, it is possible to reliably prevent the deformation of the window portion of the quarter inner panel, and it is possible to arrange the strut reinforcement formed in the shortest shape and realize weight reduction. The generation of unnecessary force vectors can be reduced.

  Further, in the reinforcing structure of the present invention, the quarter center panel is disposed on the vehicle front side of the strut reinforcement, and the quarter center panel is provided with a through hole for disposing a seat belt retractor, The belt routing direction, the extending direction of the front and rear sides facing the through hole, the strut reinforcement base and the quarter inner panel and the quarter pillar inner panel or the junction of the quarter pillar reinforcement The direction of the connecting line is set to match, ensuring a surface that extends upward from the quarter center panel and efficiently distributing the load to the quarter inner panel and quarter pillar inner panel or quarter pillar reinforcement. It becomes possible. Therefore, according to the reinforcing structure of the present invention, the space for arranging the retractor can be made compact, and the seat belt caused by the moving load of the occupant forward of the vehicle when a deceleration load is applied to the vehicle by the load from the front of the vehicle. Can be distributed to the base portion of the strut reinforcement through the quarter center panel, and the seat belt holding function can be effectively exhibited.

  Furthermore, in the reinforcing structure of the present invention, the interior trim mounting portion that covers the interior side of the side panel is provided in the quarter center panel and the strut reinforcement, so that the mounting strength of the interior trim is ensured. can do. In addition, since the seat belt retractor is suspended with high rigidity on the quarter center panel, the alignment accuracy between the retractor and the interior trim can be improved. Since the seat belt is pulled out from the long hole of the interior trim to the vehicle interior side, the positional accuracy and retention of the long hole and the seat belt can be improved, and interference between the seat belt and the long hole can be achieved. Can be prevented. Moreover, since the input load from the armrest part provided in the interior trim can be received by the quarter center panel or the strut reinforcement, the deformation of the interior trim due to the load of the elbow or the like can be reduced.

  In the reinforcing structure of the present invention, a rear shock absorber reinforcement is provided on an upper portion of the wheel house inner panel. A joint portion with a force is provided, and a flange extending upward is provided at a joint portion with the strut reinforcement in the rear shock absorber reinforcement, so that the vertical direction from the rear shock absorber is provided. The rear shock absorber reinforcement along with the upper part of the wheel house inner panel is received and can be reliably transmitted to the strut reinforcement. In particular, at the joint between the flange extending upward of the rear shock absorber reinforcement and the lower side portions before and after the strut reinforcement, the load from the rear shock absorber in the vertical direction, particularly the downward direction, is not the peeling direction. Since it is applied in the shear direction, it is possible to prevent the joint from peeling off. Moreover, the plate | board thickness of each component can be lowered | hung by improvement of load resistance, and reduction of a weight and cost is realizable.

Further, in the reinforcing structure of the present invention, the lower portion of the inner side surface of the strut reinforcement extends upward while moving from the inner side to the outer side in the vehicle width direction, and the upper portion of the inner side surface of the strut reinforcement is substantially directly above. The upper and lower intermediate portions of the inner side surface of the strut reinforcement are connected while being curved toward the quarter center panel, so that the load at the lower portion of the strut reinforcement is applied to the quarter center panel. Therefore, the upper portion of the strut reinforcement is not subjected to excessive load, the hat-shaped cross section of the strut reinforcement can be reduced, and the load can be distributed even in a curved shape.
Therefore, according to the reinforcing structure of the present invention, it is possible to secure a large space in the upper part and the front part of the strut reinforcement, widen the armrest part provided in the interior trim, provide a drink holder, etc. The comfort in the room can be improved.

It is the side view seen from the vehicle interior side of the vehicle rear part to which the reinforcement structure of the side panel which concerns on embodiment of this invention was applied. FIG. 2 is an enlarged side view showing a quarter center panel in a state where a strut reinforcement is removed in the vehicle of FIG. 1. FIG. 3 is an enlarged perspective view seen from the front of the vehicle in the state of FIG. 2. It is a perspective view which shows the rear shock absorber reinforcement provided in the reinforcement structure which concerns on embodiment of this invention. It is a perspective view which shows the strut reinforcement vicinity in the embodiment of the present invention partially broken. It is the sectional view on the AA line in FIG.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIGS. 1-6 shows the reinforcement structure of the side panel of the vehicle rear part which concerns on embodiment of this invention.

As shown in FIGS. 1 to 6, wheels having a curved shape extending upward in the vehicle front-rear direction are provided on the left and right sides of the rear portion of the vehicle to which the side panel reinforcing structure according to the embodiment of the present invention is applied. A house inner panel 1 is provided. And the upper end part of the rear shock absorber 2 which suppresses the rocking | fluctuation of a vehicle body, a vertical motion, etc. during vehicle travel is attached to the upper surface of the wheel house inner panel 1 via the mount member 3 (refer FIG. 6). .
Therefore, the upper part of the wheel house inner panel 1 has a rear shock absorber mounting portion 4 and a strut having a hat-shaped cross section that extends along the vehicle vertical direction and transmits the load from the rear shock absorber 2 to the upper side of the vehicle. A lean reinforcement 5 is provided, and a lower end portion of the strut reinforcement 5 is bent at a substantially right angle to the outside at a position in the vehicle front-rear direction and placed on the rear shock absorber mounting portion 4 by spot welding or the like. Installed by joining.

  Around the rear shock absorber mounting portion 4 of the present embodiment, a rear shock absorber panel 6 attached by spot welding or the like to the lower surface of the wheel house inner panel 1 is disposed, and the rear shock absorber panel 6 An insertion hole 7 through which the upper end portion 2a of the rear shock absorber 2 is inserted is formed near the vehicle interior side. A rear shock absorber reinforcement 8 for further reinforcement is joined and attached to the upper surface of the rear shock absorber panel 6 by spot welding or the like.

As shown in FIGS. 1 to 6, the rear shock absorber reinforcement 8 of the present embodiment is a flat panel having a predetermined width in the vehicle front-rear direction and extending in the vehicle width direction of the wheel house inner panel 1. It is formed using. A through hole 9 through which the upper end 2a of the rear shock absorber 2 is inserted is formed in a flat surface portion closer to the vehicle interior side of the rear shock absorber reinforcement 8 so as to correspond to the insertion hole 7 of the rear shock absorber panel 6. The vehicle interior side end is bent downward along the wheel house inner panel 1.
On the other hand, flanges 10 and 11 extending toward the upper side of the vehicle are provided at the joint portion between the rear shock absorber reinforcement 8 and the strut reinforcement 5. As shown, the rear shock absorber reinforcement 8 is attached to the strut reinforcement 5 by joining these flanges 10 and 11 to the lower side surface 5 a of the strut reinforcement 5 by spot welding. At this time, since the notch portion 5b is provided on the surface of the strut reinforcement 5 on the vehicle interior side, by inserting a welding gun (not shown) from the notch portion 5b, the flanges 10 and 11 and the lower portion It is possible to easily perform the welding operation with the side surface portion 5a.

The flanges 10 and 11 of the present embodiment are provided in the front-rear direction of the rear shock absorber reinforcement 8 in the vehicle front-rear direction, and are respectively overlapped with the lower side surface portion 5 a corresponding to the front-rear surface of the strut reinforcement 5. It is joined. For this reason, the flanges 10 and 11 are formed by standing up the end portions of the rear shock absorber reinforcement 8 located in the front and rear of the vehicle and bending them at a substantially right angle.
Further, as shown in FIGS. 3 to 5, a bead 12 extending along the longitudinal direction of the vehicle is formed over the entire width of the board portion between the flanges 10 and 11 located at the front and rear sides of the rear shock absorber reinforcement 8. The presence of the bead 12 reduces the bending deformation of the substrate portion with respect to the vertical load applied to the flanges 10 and 11. The bead 12 of this embodiment is formed in a convex shape upward.

On the other hand, in the side panel reinforcement structure of the present embodiment, as shown in FIGS. 1 to 3, the wheel house inner panel 1, the cross-hatted strut reinforcement 5, the quarter inner panel 13, and the quarter pillar lean force. A quarter center panel 15 is provided in an area S (see FIG. 2) surrounded by a ment (or quarter pillar inner panel) 14. The lower part of the strut reinforcement 5 is joined to the rear shock absorber mounting part 4, and the upper part of the strut reinforcement 5 is the vehicle front-rear direction of the bottom part 16 a of the window part 16 provided in the quarter inner panel 13. It is joined to the middle part.
As shown in FIGS. 1, 3 and 6, the quarter center panel 15 and the strut reinforcement 5 according to the present embodiment are joined to each other by spot welding or the like so that the quarter center panel 15 A closed cross-section C extending in the vehicle up-down direction surrounded by the flat surface portion and the hat-shaped cross-section portion of the strut reinforcement 5 is formed, and is configured to obtain a highly rigid support column. The closed cross-section C is covered by joining the rear shock absorber reinforcement 8 from below and has a bulk structure. With this structure, the strut reinforcement 5 has improved strut rigidity. Is planned.

In the side panel reinforcing structure of the present embodiment, the quarter center panel 15 is joined in the vicinity of the joint between the quarter inner panel 13 and the quarter pillar reinforcement 14 by spot welding or the like. The panel 15 has a load distribution surface 17 that spreads at least obliquely forward toward the vehicle upper side. The load distribution surface 17 distributes the upward load from the rear shock absorber 2 to the front half of the bottom portion 16a of the window portion 16 of the quarter inner panel 13 and the quarter pillar reinforcement 14. The window portion 16 is prevented from being deformed, and the strut reinforcement 5 can be formed in the shortest shape.
Further, in the vicinity of the wheel house inner panel 1 where the strut reinforcement 5 and the rear shock absorber reinforcement 8 are installed, as shown in FIGS. A suspension portion 18 of a seat belt retractor 19 configured by joining to the lower portion of the center panel 15 is provided. This vicinity is an intersection between the wheel house inner panel 1 in the longitudinal direction of the vehicle and the strut reinforcement 5 in the vertical direction of the vehicle, and the rigidity is increased by the rear shock absorber reinforcement 8. On the other hand, it is a part suitable for absorbing the load from the seat belt 20 generated obliquely upward on the front side of the vehicle and transmitting it to the highly rigid body part. The seat belt 20 is routed by a seat belt bracket 21 and a seat belt anchor 22 provided on the upper part of the quarter pillar reinforcement 14.

Moreover, the quarter center panel 15 of the present embodiment is disposed on the vehicle front side of the strut reinforcement 5 as shown in FIGS. 1 and 3. As shown in FIG. 2, the quarter center panel 15 is provided with a through hole 23 in which the seat belt retractor 19 is disposed. The arrangement direction of the seat belt 20 and the front and rear sides 23 a opposed to the through hole 23 are provided. , 23b, and the direction of the line O connecting the base of the strut reinforcement 5 and the joints of the quarter inner panel 13 and the quarter pillar reinforcement 14 are set to coincide with each other. As a result, a surface extending upward from the quarter center panel 15 is secured, and the upward load from the rear shock absorber 2 can be efficiently distributed to the quarter inner panel 13 and the quarter pillar reinforcement 14.
Further, as shown in FIG. 6, the vehicle interior side of the side panel to which the reinforcing structure of the present embodiment is applied is covered with an interior trim 24, and the mounting portion 24 a of the interior trim 24 is highly rigid. It is provided in the quarter center panel 15 and the strut reinforcement 5 so as to secure the mounting strength. For this reason, it becomes possible to receive the input load from the below-mentioned armrest part 25 efficiently.

  Furthermore, as shown in FIGS. 5 and 6, the lower portion of the inner side surface 5 c of the strut reinforcement 5 of the present embodiment extends upward while moving from the inner side to the outer side in the vehicle width direction. Further, the upper part of the inner side surface 5c of the strut reinforcement 5 extends almost directly above, and the upper end is bent into a crank shape toward the quarter inner panel 13 and joined. The upper and lower intermediate portions of the inner side surface 5c of the strut reinforcement 5 extend while curving in a convex shape toward the quarter center panel 15 and are connected to the upper and lower portions. As a result, the load at the lower part of the strut reinforcement 5 is distributed by the quarter center panel 15, and no excessive load is applied to the upper part of the strut reinforcement 5, and the hat-shaped cross section of the strut reinforcement 5 is reduced. In addition, it is possible to secure a large space in the upper part and the front part of the strut reinforcement 5. Moreover, in the side panel reinforcing structure of the present embodiment, the armrest 25 provided in the interior trim 24 can be widened to provide a drink holder 26 and the like, and the space can be used effectively. .

Thus, in the reinforcement structure of the side panel of the rear part of the vehicle according to the embodiment of the present invention, the rear shock absorber mounting part 4 is provided on the upper part of the wheel house inner panel 1, and the wheel house inner panel 1, the cross-sectional hat type A quarter center panel 15 is provided in a region S surrounded by the shape of the strut reinforcement 5, the quarter inner panel 13 and the quarter pillar reinforcement 14, and the lower part of the strut reinforcement 5 is joined to the rear shock absorber mounting portion 4. The upper portion of the strut reinforcement 5 is joined to the vehicle front-rear direction intermediate portion of the bottom portion 16a of the window portion 16 of the quarter inner panel 13, and the quarter center panel 15 and the strut reinforcement 5 are joined to each other. By A closed cross-section C extending in the vertical direction is formed, and the quarter center panel 15 is joined in the vicinity of the joint between the quarter inner panel 13 and the quarter pillar reinforcement 14, so that the vehicle faces obliquely forward in front of the vehicle. Since it has the load distribution surface 17 which spreads, a highly rigid support | pillar can be obtained and the left-right both sides of a vehicle rear part can be reinforced with high rigidity rather than the conventional reinforcement structure.
In the reinforcing structure for the side panel at the rear of the vehicle according to the present embodiment, the upward load from the rear shock absorber 2 causes the wheel house inner panel 1, the rear shock absorber panel 6 and the rear shock absorber at the upper position of the vehicle. Since it is transmitted to the lean reinforcement 8 and further transmitted from the lower part of the strut reinforcement 5 to the quarter inner panel 13 at the upper part of the vehicle body, it is distributed to the load distribution surface 17 obliquely forward on the upper side of the vehicle through the quarter center panel 15. The upward load from the rear shock absorber 2 can be distributed to the front half portion of the bottom portion 16a of the window portion 16 of the quarter inner panel 13 and the quarter pillar reinforcement 14 so that the load distribution function can be enhanced. Of the window 16 of the inner panel 13 The form can be reliably prevented.

  While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

  For example, the rear shock absorber mounting portion 4 of the wheel house inner panel 1 in the above-described embodiment may be provided with a thick rear shock absorber panel 6 by dividing the wheel house inner panel 1 into two.

DESCRIPTION OF SYMBOLS 1 Wheel house inner panel 2 Rear shock absorber 3 Mount member 4 Rear shock absorber attachment part 5 Strut reinforcement 5a Lower side part 5c Inner side face 6 Rear shock absorber panel 8 Rear shock absorber reinforcement 10, 11 Flange 12 Bead 13 Quarter Inner panel 14 Quarter pillar reinforcement 15 Quarter center panel 16 Window portion 17 Load distribution surface 18 Suspension portion of seat belt retractor 19 Seat belt retractor 20 Seat belt 23 Through hole 24 Interior trim 24a Interior trim attachment portion C Closed section S region

Claims (4)

A rear shock absorber mounting portion is provided on the wheel house inner panel, and the wheel house inner panel, the strut reinforcement with a hat-shaped cross section, the quarter inner panel, and the quarter pillar inner panel or the area surrounded by the quarter pillar reinforcement. A quarter center panel is provided, the lower part of the strut reinforcement is joined to the rear shock absorber mounting part, and the upper part of the strut reinforcement is the middle of the window part provided in the quarter inner panel in the vehicle longitudinal direction. In the reinforcing structure of the side panel of the rear part of the vehicle joined to the part,
The quarter center panel and the strut reinforcement are joined to each other to form a closed cross section extending in the vehicle vertical direction, and the quarter center panel includes the quarter inner panel and the quarter pillar inner panel or the quarter pillar. By being joined in the vicinity of the joint with the lean force, it has a load distribution surface that spreads at least toward the vehicle front diagonally forward ,
The quarter center panel is disposed on the vehicle front side of the strut reinforcement, and the quarter center panel is provided with a through hole for arranging a seat belt retractor, the seat belt routing direction, the through hole The extending direction of the front and rear sides facing each other, and the direction of the line connecting the base of the strut reinforcement and the quarter inner panel and the joint of the quarter pillar inner panel or the quarter pillar reinforcement are matched. The reinforcing structure of the side panel of the rear part of the vehicle characterized by being set to . Mounting portion of the interior trim covering the vehicle interior side of said side panels, vehicle rear side panel according to claim 1, characterized in that is provided et the quarter center panel and the strut reinforcement Reinforcement structure. A rear shock absorber reinforcement is provided at an upper portion of the wheel house inner panel, and a joint portion between the rear shock absorber mounting portion and the strut reinforcement is provided in the rear shock absorber force. The side panel of the rear part of the vehicle according to claim 1, wherein a flange extending upward is provided at a joint portion of the rear shock absorber reinforcement with the strut reinforcement. Reinforced structure. The lower portion of the inner side surface of the strut reinforcement extends upward while moving from the inner side to the outer side in the vehicle width direction, and the upper portion of the inner side surface of the strut reinforcement extends substantially directly above the strut reinforcement. upper and lower intermediate portions of the inner side surface of the reinforcement, the reinforcing structure of a vehicle rear side panel according to claim 1 or 3, characterized in that connected extends while curving toward the quarter center panel.

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