DE112020000983T5 - VEHICLE BODY SIDE PART STRUCTURE - Google Patents

Abstract

A rear wheel house (11) comprises an inner rear wheel house portion (11I) and an outer rear wheel house portion (11O). A wheel arch reinforcement member (14) comprises: a reinforcement member body portion (14h) which, together with an outer base wall (11O-b) of the outer rear wheel arch portion, forms a closed reinforcement cross-section (22); an outer connecting portion connected to the outer surface of the outer base wall; and an inner connecting portion that extends outward in the radial direction of the rear wheel. The outer base wall (11O-b) is arranged such that it is further offset in the direction of the axle side of the rear wheel with respect to an inner base wall (11I-b). The inner connecting portion is arranged at the rear from the connecting surface of an outer upright wall (11O-a) to an inner upright wall (11I-a) and is connected to the outer upright wall (11O-a) and the inner upright wall (11I- a) connected while forming a three-layer structure with it.

Description

[Technical area]

The present invention relates to a vehicle body side part structure comprising a rear wheel house which is configured to cover an outside of a rear wheel.

It becomes the priority of the Japanese Patent Application No. 2019-035552 claimed, filed February 28, 2019, the contents of which are incorporated herein by reference.

[Technical background]

A rear wheel house configured to cover an outside of a rear wheel is provided on a rear side part of a vehicle. Usually, the rear wheel arch is configured by an inner rear wheel arch which is a panel member arranged on an inner side in a vehicle width direction and an outer rear wheel arch which is a panel member arranged on an outer side in the vehicle width direction , be connected to each other by welding or the like. In addition, an outer side panel, which forms a design surface of a vehicle body, is connected to an outside of the rear wheel house.

In recent years, in such a side part structure of a vehicle body, it has been desired to improve the rigidity in the area of the rear wheel house in order to further improve the operational stability and to more advantageously absorb an impact load from the side of the vehicle body. As a countermeasure, a configuration has been proposed in which a wheel arch reinforcement member is connected to the rear wheel arch on the side of an upper surface thereof and a closed reinforcement cross section is formed between the wheel arch reinforcement member and the rear wheel arch (see, for example, Patent Literature 1).

In the rear wheel arch of Patent Literature 1, the inner rear wheel arch and the outer rear wheel arch, which have substantially arc-like shapes, are connected to each other, and the wheel arch reinforcing member is connected to the outer rear wheel arch on the side of the upper surface. The reinforcing closed cross-section has a configuration in which it is surrounded by the wheel arch reinforcement member and the outer rear wheel arch.

Specifically, the inner rear wheel house and the outer rear wheel house have base walls that are configured to cover an outside of an outer peripheral surface of a rear wheel, and upright walls (flange portions) that extend outward from end portions of the base walls in a radial direction of the rear wheel , and the upright walls abut against each other and are connected by spot welding or the like. In addition, the wheel arch reinforcing member has a reinforcing member body portion which forms a closed reinforcing cross section between the outer rear wheel arch and the reinforcing member main body, an outer flange portion which is at an outer end in a vehicle width direction of the reinforcing member body portion with an outer surface of the base wall and an inner flange portion connected at an inner end in the vehicle width direction of the reinforcing member body portion to the upright wall of an inner rear wheel house. The inner flange portion is welded to the upright wall of the inner rear wheel house on a side closer to the door opening than a connecting portion with the outer rear wheel house. Accordingly, a large area for a closed reinforcement cross section can be secured.

[Citation list]

[Patent literature]

[Patent Literature 1]

Japanese Unexamined Patent Application, First Publication No. 2006-312358

[Summary of the invention]

[Technical problem]

However, in the vehicle body side member structure disclosed in Patent Literature 1, since the inner flange portion of the wheel arch reinforcement member is welded to the upright wall of the inner rear wheel arch on a side closer to the door opening than the connecting portion with the outer rear wheel arch, an outside of the connecting portion of the inner rear wheel house and the outer rear wheel house is covered by the wheel house reinforcement member in a bag shape. For this reason, the wheel arch reinforcement member cannot join the inner flange portion to the upright wall of the inner rear wheel arch until welding (Spot welding) the outer rear wheel house and the inner rear wheel house has been completed. For this reason, in the case of the vehicle body side member structure disclosed in Patent Literature 1, it is not possible to efficiently connect the three members of the wheel arch reinforcement member, the outer rear wheel arch and the inner rear wheel arch, and it is desired to do so an improvement in the efficiency of liaison work.

One aspect of the present invention is directed to providing a vehicle body side member structure capable of efficiently connecting three members of a wheel arch reinforcement member, an outer rear wheel arch, and an inner rear wheel arch.

[The solution of the problem]

A vehicle body side member structure according to the present invention adopts the following configurations.

(1) A vehicle body side member structure according to the present invention includes a rear wheel house configured to cover an outside of a rear wheel; an outer side panel which is disposed on an outer side of the rear wheel house and which forms a closed cross section which extends substantially along an outer peripheral surface shape of the rear wheel between the rear wheel house and the outer side panel along a peripheral edge of a door opening, and a wheel house reinforcement member which is configured to form a closed reinforcement cross section between the rear wheel arch and the wheel arch reinforcement member on an inner side of the closed cross section, the rear wheel arch an inner rear wheel arch which is a panel member which is located on an inner side in a vehicle width direction is arranged, and an outer rear wheel house which is a panel member which is arranged on an outer side in the vehicle width direction, the inner rear wheel house has an inner base wall which is an outer Peripheral surface of the rear wheel faces, and has an inner upright wall which extends from an outer end in the vehicle width direction of the inner base wall toward an outer side of the rear wheel in a radial direction, the outer rear wheel arch has an outer base wall which is an outer peripheral surface of the Facing the rear wheel, and has an outer upright wall extending from an inner end in the vehicle width direction of the outer base wall toward an outer side of the rear wheel in the radial direction, the inner upright wall and the outer upright wall are connected to each other, the outer Base wall is arranged so that it is offset with respect to the inner base wall toward an axial center of the rear wheel, the wheel arch reinforcement member comprises: a reinforcement member body portion, which the closed reinforcement cross section between the outer base wall and the reinforcement forms element body portion; an outer connecting portion which is connected to an outer surface of the outer base wall at an outer side portion in the vehicle width direction of the reinforcing member body portion, and an inner connecting portion which extends from an inner end in the vehicle width direction of the reinforcing member body portion toward an outer side of the rear wheel extends in the radial direction, and the inner connecting portion is disposed on a rear surface of a connecting surface of the outer upright wall which is connected to the inner upright wall, and the inner connecting portion is connected to the outer upright wall and the inner upright wall in one state is in which three of the inner connecting portion, the outer upright wall, and the inner upright wall overlap with each other.

According to the configuration of the above aspect (1), the wheel house reinforcement member has the outer connecting portion connected to the outer surface of the outer base wall of the outer rear wheel house and the inner connecting portion connected to the outer upright wall of the outer rear wheel house and the inner upright wall of the inner rear wheel house is connected in the state of a three-layer structure. Here, the inner connecting portion of the wheel arch reinforcement member can be easily connected to the outer upright wall and the inner upright wall by spot welding in the state in which the three of the inner connecting portion, the outer upright wall and the inner upright wall are connected to each other overlap (three-layer structure).

Furthermore, when the wheel arch reinforcement member and the outer side panel are coupled to the rear wheel arch, the closed cross section extending substantially along the outer peripheral surface shape of the rear wheel (along the peripheral edge of the door opening) is through the rear wheel arch and the outer side panel is formed, and the reinforcing closed section formed by the outer rear wheel arch and the wheel arch reinforcing member is inside of the closed cross-section. In addition, since the outer base wall is arranged to be offset with respect to the inner base wall toward the axial center of the rear wheel, a cross-sectional area of the reinforcing closed cross-section can be increased. As a result, weight reduction can be achieved, and rigidity and strength in the area of the rear wheel house can be effectively increased without relying on the plate thickness of a steel plate.

(2) In the above aspect (1), in the cross section in the vehicle width direction, the outer base wall of the outer rear wheel house may be formed substantially parallel to the outer peripheral surface of the rear wheel, and an inclined wall facing one in the vehicle width direction outer side inclined toward the axial center of the rear wheel can be provided at an outer edge portion in the vehicle width direction of the outer base wall, and an inclined connecting wall connected to the inclined wall can be provided on the side outer panel.

In this case, since the outer base wall of the outer rear wheel house is formed substantially parallel to the outer peripheral surface of the rear wheel, the outer base wall can sufficiently approach the rear wheel without causing engagement / interaction with the rear wheel. For this reason, a sufficiently large cross-sectional area for the closed reinforcing cross-section can be ensured in the limited (construction) space in the circumferential area of the rear wheel.

When the outer base wall is arranged so as to be offset with respect to the inner base wall toward the axial center of the rear wheel, a degree of deflection is increased in the outer base wall which is bent in the front / rear direction of the vehicle ( a curvature is reduced), and it becomes difficult to press the outer edge portion of the outer base wall in the vehicle width direction to an arcuate angle which is substantially a right angle. In the configuration, however, the inclined wall is provided on the outer edge portion in the vehicle width direction of the outer base wall, and the inclined connecting wall of the side outer panel is connected to the inclined wall. For this reason, when the configuration is adopted, there is no need to abruptly bend the outer edge portion in the vehicle width direction of the outer base wall to a substantially right angle, and processing of the outer rear wheel house can be facilitated.

(3) In the aspect of the above aspect (2), a bent flange portion which is bent toward the axial center of the rear wheel may be provided on an edge of the connecting inclined wall of the side outer panel so that an inner surface and an outer surface of the curved flange portion become flat surfaces which are substantially perpendicular to the axial center of the rear wheel.

In this case, since it is not necessary to precisely cut the end portion of the inclined connecting wall of the side outer panel, processing of the side outer panel can be facilitated. In addition, when the end portion of the inclined connecting wall is bent to form the bent flange portion, dimensional accuracy of the end portion of the inclined connecting wall can be easily increased. In addition, since the bent flange portion is bent toward the axial center of the rear wheel, a dirt sealant can be easily applied to a suitable portion between the end portion of the connecting inclined wall and the end portion of the inclined wall on the rear surface of the bent flange portion. In particular, when the dirt sealant is applied, the bent flange portion can be used as a guide for applying the dirt sealant, and excessive application of the dirt sealant from the end portion of the inclined wall can be hidden by the bent flange portion.

In the above aspect (2) or (3), a decorative member that covers an outer side of the connecting inclined wall in the vehicle width direction may be attached to the side outer panel.

In this case, a connection mark or the like on the inclined wall cannot be covered and hidden by the decorative member. For this reason, it is possible to prevent the occupant's clothes from contacting the free end of the bent flange portion while improving an external appearance.

(5) In the aspect of any of the above (2) to (4), a side sill reinforcement member, which is a rear part of a side sill, may be disposed in a front part of the rear wheel house, and a rear edge portion of the side sill reinforcement member be connected to the inclined wall and the inclined connecting wall in a state in which the rear edge portion of the side sill reinforcement member is bolt-coupled to a front edge portion of the wheel arch reinforcement member, and the rear edge portion of the side sill reinforcement member is interposed on an outer side in the vehicle width direction between the inclined wall and the inclined connecting wall.

In this case, the front part of the rear wheel house is fixedly coupled to the rear part of the side sill reinforcement member at a plurality of locations on an outer side in the vehicle width direction. In addition, since the reinforcing closed cross section formed by the wheel arch reinforcement member can be continuous with the high rigidity closed cross section of the side sill, rigidity from the area around the rear wheel arch to the side sill can be increased efficiently.

[Advantageous Effects of Invention]

According to the aspect of the present invention, since the inner connecting portion of the wheel arch reinforcement member is connected to the outer upright wall of the outer rear wheel arch and the inner upright wall of the inner rear wheel arch in the state of the three-layer structure, the three members of the wheel arch reinforcement member , the outer rear wheel arch and the inner rear wheel arch can be efficiently coupled by means of spot welding. Accordingly, when the vehicle body side member structure of the present invention is employed, a work efficiency in manufacturing can be increased.

Figure list

• 1 an exploded perspective view of a vehicle of an embodiment.
• 2 Fig. 13 is a side view in the area of a rear part of the vehicle of the embodiment.
• 3 FIG. 13 is a perspective view of a part belonging to a portion III in FIG 1 corresponds to the vehicle of the embodiment.
• 4th FIG. 13 is a perspective view of a state in which an outer side panel of the part corresponding to the section III in FIG 1 of the vehicle of the embodiment is attached.
• 5 FIG. 13 is a cross-sectional view corresponding to a VV cross-section in FIG 3 corresponds to the vehicle of the embodiment.
• 6th FIG. 13 is a cross-sectional view corresponding to a VI-VI cross-section in FIG 3 corresponds to the vehicle of the embodiment.
• 7th FIG. 13 is a partial cross-sectional perspective view showing a cross section of a part corresponding to a cross section VII-VII in FIG 2 corresponds to the vehicle of the embodiment.

[Description of exemplary embodiments]

An embodiment of the present invention will be described below with reference to the accompanying drawings. Further, in the following description, directions forward, rearward, upward, downward, leftward, and rightward are not particularly limited and show directions forward, backward, upward, downward, leftward, and rightward in a vehicle at. In addition, at appropriate locations in the drawings, an arrow UP indicates an upward direction of the vehicle, an arrow FR indicates a forward direction of the vehicle, and an arrow LH indicates a leftward direction of the vehicle.

1 FIG. 13 is an exploded perspective view showing a vehicle body 1 of the vehicle of the embodiment as viewed from the upper left, and FIG 2 13 is a left side view in the area of a rear part of the vehicle body 1. The vehicle body 1 of the embodiment is formed in a substantially laterally symmetrical shape. The vehicle body side member structure will be described below with reference to the drawings showing a left side surface of the vehicle body 1.

As in 1 and 2 As shown, the vehicle body 1 comprises a side sill 10 , a rear wheel arch 11 , a rear pillar (quarter pillar) 12, a roof side rail 13, a wheel arch reinforcement element 14th and a side outer panel 15th .

The side skirts 10 is disposed on an outside of a passenger compartment at a lower end position of a side part and extends substantially in a vehicle body front / rear direction. The rear wheel arch 11 is arranged so that it has a rear wheel Wr from above and an outside on the side of the rear part of the side sill 10 covers. The rear pillar 12 extends diagonally forward and upward from near an upper portion of the rear wheel house 11 in the direction of the roof side rail 13 and has an upper end portion which is coupled to the roof side rail 13. The roof side rail 13 extends on a side part of a roof portion of the vehicle body substantially in a vehicle body front / rear direction. The wheel arch reinforcement element 14th is connected to a lower end of the rear pillar 12 and to the upper surface of the front part of the rear wheel arch 11 which is closer to the front and extends along a peripheral edge of a rear side door opening 18 (a door opening) toward the rear of the side sill 10 .

The side outer panel 15th is a panel element, which forms a design surface of the vehicle side part. The side outer panel 15th has an outside rocker part 15a which is part of the outside of the side rocker 10 configured on the vehicle, and a wheel arch portion 15b which is adapted to be an outside of the rear wheel arch 11 to cover.

In the side skirts 10 a side sill stiffening element 10s which is coupled to an outer side of an inner side sill (not shown) forms a closed cross section, which extends forward and backward in the vehicle body, between the two. In addition, the outside rocker part 15a is the side outer panel 15th coupled to an outside of the side sill stiffening element 10s. Furthermore, a closed cross section is formed between the side sill stiffening element 10s and the outer side sill part 15a. In addition, there is a side sill reinforcement element 50 integrally coupled to the inner side sill and a rear end portion of the side sill reinforcement member 10s and the side sill reinforcement member 50 is with a portion of a front part of the rear wheel house 11 coupled.

Further, in the vehicle body front / rear direction, there are substantially central portions of the side sill 10 and the roof side rail 13 connected by a central pillar 16. A front side door opening 17 which is opened and closed by a front door (not shown) is provided on a front side of the center pillar 16, and the rear side door opening 18 which is opened and closed by a rear door (not shown), is provided on the rear part of the center pillar 16 side. The rear part side door opening 18 is set up in such a way that it extends from the center pillar 16, the side sill 10 , the area of a front part of the rear wheel arch 11 , the rear pillar 12 and the roof side rail 13 is surrounded. A corner portion C of the lower end of the rear part of the rear side door opening 18 is, when viewed in side view, through the connecting portion of the area of a front part of the rear wheel house 11 and the area of a rear part of the side sill 10 formed essentially in a V shape. In the area, which is essentially V-shaped when viewed from the side, the cross-sectional area / the cross-sectional area must be made small in order not to forego the ease of entry and exit for an occupant. For this reason, the area is a front part of the rear wheel house 11 has been designed with a cross-sectional structure that can maintain a high level of rigidity in a limited space. A detailed cross-sectional structure of the area will be described in detail below.

3 FIG. 13 is a perspective view of a part belonging to a portion III in FIG 1 corresponds to and 4th Fig. 13 is a perspective view of a state in which the side outer panel 15th of the part which is part of Section III in 1 is appropriate. In addition, is 5 FIG. 13 is a cross-sectional view corresponding to a VV cross-section in FIG 3 corresponds to and 6th FIG. 13 is a cross-sectional view corresponding to a VI-VI cross-section in FIG 3 is equivalent to. the 5 and 6th also show a state in which the side outer panel 15th on the rear wheel arch 11 is appropriate.

As in 5 and 6th shown includes the rear wheel arch 11 an inner rear wheel arch 11I which is a panel member disposed on an inner side in the vehicle width direction, and an outer rear wheel house 11O which is a panel member disposed on an outer side in the vehicle width direction. The inner rear wheel arch 11I has an inner base wall 11I-b opposite to an outer peripheral surface of the rear wheel Wr and an inner upright wall 11I-a which extends from an outer end in the vehicle width direction of the inner base wall 11I-b toward an outside of the rear wheel Wr extends in the radial direction. The outer rear wheel arch 11O has an outer base wall 11O-b an outer peripheral surface of the rear wheel Wr opposite and an outer upright wall 11O-a which extends from an inner end in the vehicle width direction of the outer base wall 11Ob to an outside of the rear wheel Wr the radial direction extends. The outer base wall 11O-b is offset and located on a side that is closer to an axial center O of the rear wheel Wr lies than the inner base wall 11I-b , the inner rear wheel arch 11I and the outer rear wheel arch 11O exhibit the inner upright wall 11I-a and the outer upright wall 11O-a which overlap each other and the inner upright wall 11I-a and the outer upright wall 11O-a are connected to one another by means of spot welding.

In the inner rear wheel arch 11I is the inner base wall 11I-b is gradually inclined downward toward an inner side in the vehicle width direction, and there is provided an inner cover wall 11I-c which is bent to be extends downward from an extending end of the inner base wall 11I-b. The inner cover wall 11I -c covers the rear wheel Wr from an inner side in the vehicle width direction and prevents dirt or the like from getting from the rear wheel Wr get inside the vehicle body.

In contrast, the outer base wall is 11O-b of the outer rear wheel arch 11O offset and on the side of the axial center O of the rear wheel Wr arranged at a position closer to the outer peripheral surface of the rear wheel Wr than the inner base wall 11I-b of the inner rear wheel arch 11I lies. Ie the outer upright wall 11O-a of the outer rear wheel arch 11O extends with respect to the area of overlap (the connecting portion) with the inner upright wall 11I-a of the inner rear wheel arch 11I down and the outer base wall 11O-b extends so as to be from the lower end of the outer upright wall 11O-a is bent toward an outer side in the vehicle width direction at a substantially right angle. As in 5 and 6th shown is the outer base wall 11O-b in the cross section in the vehicle width direction substantially parallel to the outer peripheral surface of the rear wheel Wr educated.

The outer upright wall 11O-a of the outer rear wheel arch 11O extends straight up past an area closer to the top than the overlapping portion (the connecting portion) with the inner upright wall 11I-a , is bent in a crank shape on an outer side in the vehicle width direction. Hereinafter, the portion which extends straight will be referred to as an upper end flange portion 110-af1 and the overlapping portion with the inner upright wall 11I-a may be referred to as an intermediate flange portion 110-af2.

In addition, a sloping wall extends 11O-c which towards the side of the axial center O of the rear wheel Wr to an outer side in the vehicle width direction is inclined at the edge portion of the outer base wall 11O-b on an outer side in the vehicle width direction. The inclined wall 11O-c is at an outer end portion of the rear wheel with respect to a vehicle width direction Wr arranged further outward position. The outer base wall 11O-b and the sloping wall 11O-c are on an outer side of the rear wheel Wr arranged while having a minimum required clearance CL around the rear wheel Wr have around which is interposed therebetween.

As in the 5 and 6th shown comprises a region 15b-1 of a front part of the wheelhouse portion 15b of the side outer panel 15th facing the rear side door opening 18, a top wall 20u adapted to be the outer base wall 11O-b of the outer rear wheel arch 11O to cover from above, and a side wall 20s which is adapted to be the outer base wall 11O-b from an outer side in the vehicle width direction. At an inner end portion in the vehicle width direction of the upper wall 20u of the area 15b-1, an upright wall 20p is continuously provided, which is bent so as to extend upward and which is connected to the upper end flange portion 11O-af1 of the outer rear wheel house 11O connected is. The upper wall 20u and the upright wall 20p of the front part area 15b-1 form a peripheral edge of the corner portion C of the lower end of a rear part of the rear side door opening 18. At a lower end of the side wall 20s of the front part area 15b-1 an inclined connecting wall extends 20q which is to an outer side in the vehicle width direction toward the axial center side O of the rear wheel Wr is inclined, and is provided there.

The inclined connecting wall 20q overlaps with the sloping wall 11O-c of the outer rear wheel arch 11O and is by means of spot welding to the inclined wall 11O-c tied together. In addition, at an outer edge in the vehicle width direction of the inclined connecting wall 20q a curved flange portion 20r provided, which in the direction of the axial center O is inclined such that the inner surface and the outer surface of the curved flange portion 20r Planes will be which are substantially perpendicular to the axial center O of the rear wheel Wr are.

The wheel arch portion 15b of the side outer panel 15th is with the outer wheel arch 11O connected and forms a closed cross-section 21 which extends substantially along an outer peripheral surface shape of the rear wheel Wr between the outer rear wheel arch 11O and the wheel house portion 15b (the corner portion C of the lower end of a rear part of the rear side door opening 18). Furthermore, a dirt sealant is set up to prevent dirt from entering the closed cross section 21 in an inward direction, between the end portion of the sloping wall 11O-c of the outer rear wheel arch 11O and the end portion of the inclined connecting wall 20q upset.

The wheel arch reinforcement element 14th forms a closed reinforcement cross-section 22nd between the outer wheel arch 11O and the wheel arch reinforcement member 14th on an inner one Side of the closed section 21 between the area 15b-1 of a front part of the wheel house portion 15b and the outer rear wheel house 11O . The closed reinforcement cross-section 22nd extends substantially along an arc shape of the area of a front part of the rear wheel house 11 .

The wheel arch reinforcement element 14th includes a reinforcement member body portion 14h , which has an upper wall 14u and a side wall 14s bent downward from an end portion of the upper wall 14u on an outer side in the vehicle width direction, an outer flange portion 14o extending from a lower end of the side wall 14s of the reinforcement member body portion 14h extending outward in the vehicle width direction, and an inner flange portion 14i extending from an inner end portion in the vehicle width direction of the reinforcing member body portion upper wall 14u 14h towards the outside (essentially upwards) in the radial direction of the rear wheel Wr extends. The outer flange section 14o configures an outer connection portion that connects to an upper surface of the outer base wall 11O-b of the outer rear wheel arch 11O is connected, and the inner flange portion 14i configures an inner connecting portion that interfaces with an outer surface of the outer upright wall in the vehicle width direction 11O-a of the outer rear wheel arch 11O connected is. The reinforcement member body portion 14h forms the closed reinforcement cross-section 22nd with a substantially rectangular shape between the outer rear wheel arch 11O and the reinforcement member body portion 14h . In addition, the inner flange portion is formed to have a rear surface (an outer side in the vehicle width direction) of the connection surface with the inner upright wall 11I-a of the inner rear wheel arch 11I and the intermediate flange portion 110-af2 of the outer upright wall 11O-a overlaps. The inner flange section 14i (the inner connecting portion) becomes with the intermediate flange portion 110-af2 of the outer upright wall 11O-a and the inner upright wall 11I-a joined by spot welding in a state in which three out of the inner flange portion 14i , the outer upright wall 11O-a and the inner upright wall 11I-a overlap each other.

In addition, the side sill reinforcement element extends 50 which is integral with the rear end portion of the side sill 10 is coupled so that it is bent toward an upper side of the rear part to with the upper surface side of the area of a front part of the rear wheel house 11 to overlap. As in 6th shown, has the side sill reinforcement element 50 a top wall 50u which is connected to the top wall 14u of the wheel arch reinforcement member 14th overlaps, a side wall 50s which extends so as to be bent downward from an end portion of the upper wall 50u inner in the vehicle width direction, an inclined flange portion 50q which extends from an end portion of the side wall 50s to an outer side in the vehicle width direction the side of the axial center O of the rear wheel Wr is inclined, and a standing flange portion 50p extending from an end portion of the upper wall 50u inner in the vehicle width direction toward an outer side of the rear wheel Wr extends in the radial direction.

The inclined flange portion 50q of the side sill reinforcement member 50 is by means of spot welding to the inclined wall 11O-c and the inclined connecting wall 20q connected while sandwiched between the sloping wall 11O-c of the outer rear wheel arch 11O and the inclined connecting wall 20q of the side outer panel 15th is inserted. The standing flange portion 50p of the side sill reinforcement member 50 is spot welded to the upright wall 20p and the upper end flange portion 11O-af1 while being sandwiched between the upright wall 20p of the side outer panel 15th and the upper end flange portion 11O-af1 of the outer wheel house 11O is inserted.

In addition, a bolt insertion hole 51 is substantially centered in the vehicle width direction on the upper wall 50u of the side sill reinforcement member 50 and a weld nut 52 is provided above the bolt insertion hole 51. The same bolt insertion hole 53 is at a position of the upper wall 14u of the wheel arch reinforcement member 14th formed, which the bolt insertion hole 51 of the side sill reinforcement member 50 is equivalent to. A collar 24 through which a shank portion of a fastening bolt 23 is inserted is between the upper wall 14u of the wheel arch reinforcement member 14th and the outer base wall 11O-b of the outer rear wheel arch 11O inserted.

The shaft portion of the fastening bolt 23 is connected to a lower side of the outer base wall via the collar 24 and the bolt insert holes 53 and 51 and via a bolt insert hole 56 11O-b attached to the weld nut 52.

The side sill reinforcement element is accordingly 50 via the fastening bolt 23 integrally with the wheel arch reinforcement element 14th and the outer rear wheel arch 11O coupled. As a result of this, the reinforcement cross-section is closed 22nd through the wheel arch reinforcement element 14th and the outer rear wheel arch 11O continuously with the closed cross-section of the side sill 10 .

7th Fig. 15 is a partial cross-sectional perspective view of the wheelhouse portion 15b of the side outer panel 15th along a cross section of a portion corresponding to a cross section VII-VII in 2 is equivalent to.

As in 4th shown is the inclined connecting wall 20q or the curved flange portion 20r arranged at an outer edge portion in the vehicle width direction of the area 15b-1 of a front part of the wheel house portion 15b. Then the inclined connecting wall faces 20q a welding mark (a connection mark) on a surface thereof when the connection inclined wall 20q with the inclined wall 11O-c of the outer rear wheel arch 11O is spot welded. Because of this, as in 2 and 7th shown, a decorative element 60 , which is set up, the inclined connecting wall 20q or the curved flange portion 20r from an outer side in the vehicle width direction is attached to an outer edge portion in the vehicle width direction of the area 15b-1 of a front part of the wheel house portion 15b.

As described above, in the vehicle body side part structure of the embodiment, the closed cross section is 21 , which is essentially along the circumferential surface shape of the rear wheel Wr extending in the peripheral edge of the door opening, through the rear wheel house 11 and the side outer panel 15th formed, and the closed reinforcement cross-section 22nd which through the outer wheel arch 11O and the wheel arch reinforcement member 14th is formed is on an inside of the closed cross section 21 educated. For this reason, when the vehicle body side member structure of the embodiment is employed, the rigidity and strength in the area of the rear wheel house can be effectively increased.

In addition, in the vehicle body side partial structure of the embodiment, the inner flange portion overlaps 14i of the wheel arch reinforcement element 14th a rear surface of a connecting surface of the outer upright wall 11O-a of the outer rear wheel arch 11O which connect with the inner upright wall 11I-a of the inner rear wheel arch 11I is, and the inner flange portion 14i is with the outer upright wall 11O-a and the inner upright wall 11I-a connected in a state in which three out of the inner flange portion 14i , the outer upright wall 11O-a and the inner upright wall 11I-a overlap each other (three-layer structure). For this reason, three elements can be made from the wheel arch reinforcement element 14th , the outer rear wheel arch 11O and the inner rear wheel arch 11I be coupled in an efficient manner by means of spot welding. Accordingly, when the vehicle body side member structure of the embodiment is employed, work efficiency in manufacturing can be increased.

Furthermore, in the vehicle body side part structure of the embodiment, the outer base wall 11O-b is arranged so that it is with respect to the inner base wall 11I-b towards the axial center O of the rear wheel Wr is offset, the outer base wall can be 11O-b the rear wheel Wr approximate sufficiently. Accordingly, in the circumferential area of the rear wheel Wr limited space the cross-sectional area of the closed reinforcement cross-section 22nd be ensured sufficiently large and a rigidity in the area of the rear wheel can be effectively increased.

In addition, in the vehicle body side member structure of the embodiment, in the cross section in the vehicle width direction, is the outer base wall 11O-b of the outer rear wheel arch 11O substantially parallel to the outer peripheral surface of the rear wheel Wr is formed, and the inclined wall 110-C is on an outer edge portion of the outer base wall in the vehicle width direction 11O-b provided. Then is the inclined connecting wall 20q which with the inclined wall 11O-c is connected to the wheel house portion 15b of the side outer panel 15th provided. As in the case of the structure, the outer base wall 11O-b substantially parallel to the outer peripheral surface of the rear wheel Wr is formed, the outer base wall can 11O-b the rear wheel Wr approximate sufficiently without engaging / interacting with the rear wheel Wr to cause. For this reason, in the circumferential area of the rear wheel Wr limited space the cross-sectional area of the closed reinforcement cross-section 22nd be ensured sufficiently large and a rigidity in the area of the rear wheel arch can be effectively increased. Accordingly, in the case of the exemplary embodiment, the ease of entry and exit for an occupant is not dispensed with, since the rear part side door opening 18 is not narrowed.

It is also in the outer base wall 11O-b , which is bent in the front-and-rear direction of the vehicle, increases a degree of bending when the outer base wall 11O-b is arranged so that it is with respect to the inner Base wall 11I-b towards the axial center O of the rear wheel Wr is offset, and it becomes difficult at the outer edge portion in the vehicle width direction of the outer base wall 11O-b to press to a curved angle, which is substantially a right angle. In the configuration, however, is the inclined wall 11O-c on the outer edge portion of the outer base wall in the vehicle width direction 11O-b provided and the inclined connecting wall 20q of the side outer panel 15th is with the inclined wall 11O-c tied together. For this reason, when the configuration is adopted, there is no need for the outer peripheral portion of the outer base wall in the vehicle width direction 11Ob bending abruptly to a substantially right angle and processing the outer rear wheel arch 11O can be done more easily.

Since, in the vehicle body side member structure of the embodiment, the bent flange portion 20r at one edge of the inclined connecting wall 20q of the side outer panel 15th is provided, it is not necessary to use the end portion of the inclined connecting wall 20q of the side outer panel 15th to be precisely / precisely separated / cut during manufacture. For this reason, the side outer panel is processed 15th further relieved. As in the structure of the embodiment, the end portion of the inclined connecting wall 20q can be bent to the bent flange portion 20r can form a dimensional accuracy of the end portion of the inclined connecting wall 20q can be increased in a simple manner.

Furthermore, in the vehicle body side member structure of the embodiment, the bent flange portion 20r towards the axial center O of the rear wheel Wr is bent, the dirt sealant s can easily be attached to a suitable portion between the end portion of the inclined connecting wall 20q and the end portion of the inclined wall 11O-c on the rear surface of the curved flange portion 20r be applied. That is, when the dirt sealant s is applied, the bent flange portion can 20r can be used as a guide for applying the dirt sealant and the excessive application of the dirt sealant from the end portion of the inclined wall 11O-c can be hidden by the curved flange section.

Furthermore, in the vehicle body side part structure of the embodiment, the decorative member 60 which is the outer side in the vehicle width direction of the inclined connecting wall 20q covers, on the side outer panel 15th attached, a connection mark or the like may be on the inclined wall 20q through the decorative element 60 covered and concealed. For this reason, by employing the structure of the embodiment, it is possible to prevent the occupant's garments from reaching the free end of the bent flange portion 20r contact while an outward appearance is improved.

Further, in the vehicle body side part structure of the embodiment, the rear edge portion is the side sill reinforcement member 50 with the front edge portion of the wheel arch reinforcement member 14th coupled by the fastening bolt 23 and the inclined flange portion 50q is with the inclined wall 11O-c and the inclined connecting wall 20q coupled while sandwiched between the sloping wall 11O-c and the inclined connecting wall 20q is inserted. Because of this, the front part is the rear wheel arch 11 firmly to the rear of the side sill reinforcement member in a plurality of locations 50 coupled. Furthermore, the closed reinforcement cross-section can be used in the structure 22nd through the wheel arch reinforcement element 14th continuously with the closed cross-section of the side sill 10 be with high rigidity. Accordingly, when the configuration is employed, the rigidity can vary from the area around the rear wheel arch to the side sill 10 can be increased in an efficient manner.

Further, the present invention is not limited to the embodiment, and various design changes are possible without departing from the scope of the present invention.

List of reference symbols

10

Side skirts

11

rear wheel arch

11I

inner rear wheel arch

11I-a

inner upright wall

11I-b

inner base wall

11O

outer rear wheel arch

11O-a

outer upright wall

11O-b

outer base wall

11O-c

inclined base wall

14th

Wheel arch reinforcement element

14h

Reinforcement member body portion

14o

outer flange section (outer connecting section)

14i

inner flange section (inner connecting section)

15th

lateral outer panel

20q

inclined connecting wall

20r

curved flange section

21

closed cross-section

22nd

closed reinforcement cross-section

50

Side sill reinforcement element

60

Decorative element

O

axis

Wr

Rear wheel

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• JP 2019035552 [0002]

Claims (5)

A vehicle body side part structure comprising: a rear wheel house configured to cover an outside of a rear wheel; an outer side panel which is disposed on an outer side of the rear wheel house and which forms a closed cross section extending substantially along an outer peripheral surface shape of the rear wheel between the rear wheel house and the outer side panel along a peripheral edge of a door opening, and a wheel arch reinforcement element configured to form a closed reinforcement cross section between the rear wheel arch and the wheel arch reinforcement element on an inner side of the closed cross section, wherein the rear wheel arch comprises an inner rear wheel arch which is a panel member arranged on an inner side in a vehicle width direction and an outer rear wheel arch which is a panel member arranged on an outer side in the vehicle width direction, the inner rear wheel arch has an inner base wall facing an outer peripheral surface of the rear wheel and an inner upright wall extending in a radial direction from an outer end in the vehicle width direction of the inner base wall toward an outer side of the rear wheel, the outer rear wheel arch has an outer base wall facing an outer peripheral surface of the rear wheel and an outer upright wall extending from an inner end in the vehicle width direction of the outer base wall toward an outer side of the rear wheel in the radial direction, the inner upright wall and the outer upright wall are connected to each other, the outer base wall is arranged such that it is offset with respect to the inner base wall towards an axial center of the rear wheel, the wheel arch reinforcement element comprises: a reinforcement member body portion which forms the closed reinforcement cross section between the outer base wall and the reinforcement member body portion; an outer connecting portion connected to an outer surface of the outer base wall at an outer side portion in the vehicle width direction of the reinforcing member body portion, and an inner connecting portion that extends from an inner end in the vehicle width direction of the reinforcing member body portion toward an outer side of the rear wheel in the radial direction, and the inner connecting portion is disposed on a rear surface of a connecting surface of the outer upright wall which is connected to the inner upright wall, and the inner connecting portion is connected to the outer upright wall and the inner upright wall in a state in which three of the the inner connecting portion, the outer upright wall and the inner upright wall overlap each other. Vehicle body side part structure according to Claim 1 wherein, in the cross section in the vehicle width direction, the outer base wall of the outer rear wheel house is formed substantially parallel to the outer peripheral surface of the rear wheel, and an inclined wall inclined to an outer side in the vehicle width direction toward the axial center of the rear wheel is provided at an outer edge portion in the vehicle width direction of the outer base wall, and a connecting inclined wall connected to the inclined wall is provided on the side outer panel. Vehicle body side part structure according to Claim 2 wherein a bent flange portion bent toward the axial center of the rear wheel is provided on an edge of the inclined connecting wall of the side outer panel such that an inner surface and an outer surface of the bent flange portion become flat surfaces which are substantially perpendicular to are the axial center of the rear wheel. Vehicle body side part structure according to Claim 2 or 3 wherein a decorative member covering an outer side of the connecting inclined wall in the vehicle width direction is attached to the side outer panel. Vehicle body side part structure according to one of the Claims 2 until 4th , wherein a side sill reinforcement member, which is a rear part of a side sill, is arranged in a front part of the rear wheel house, and a rear edge portion of the side sill reinforcement member is connected to the inclined wall and the inclined connecting wall in a state in which the rear edge portion of the side sill reinforcement member is bolt-coupled to a front edge portion of the wheel arch reinforcement member and the rear edge portion of the side sill reinforcement member is interposed on an outer side in the vehicle width direction between the inclined wall and the inclined connecting wall.

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