JP6731137B2 - Vehicle load transmission structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vehicle load transmission structure that receives a suspension load at a position of a wheel house of a vehicle body and transmits the suspension load to a roof side rail that constitutes both widthwise edges of a roof.

Patent Document 1 discloses a technique relating to a vehicle load transmission structure that transmits a suspension load to a roof side rail. The vehicle described in Patent Document 1 is provided with a wheel house 103 for rear wheels on the rear side of the rear door opening 100d of the vehicle body 100, as shown in FIGS. 7 and 8. Further, a roof side rail 104 that constitutes an edge in the vehicle width direction of the roof of the vehicle compartment is provided above the rear door opening 100d. As shown in FIG. 7, a strainer 105 that rises upward at the position of the wheel house 103 and extends in the vehicle width direction is provided on the vehicle interior side of the vehicle body 100 (inside the inner panel 102). Further, the suspension load is configured to be received at the rising portion of the strainer 105. Further, behind the strainer 105, a suspension tower 106 that also receives a pension load and a suspension tower gusset 106g that reinforces the suspension tower 106 are provided.

A vertical reinforcement 107 that connects the wheel house 103 and the roof side rail 104 is provided outside the vehicle compartment of the inner panel 102 of the vehicle body 100. As shown in FIG. 8, the vertical reinforcement 107 is joined to the front end edge of the rising portion of the strainer 105 and the rear end edge of the suspension tower gusset 106g via the inner panel 102. The vertical reinforcement 107 is covered by the outer panel 101 that constitutes the design surface of the vehicle body 100. With the above configuration, the suspension load applied to the rising portion of the strainer 105 and the suspension tower gusset 106g is transmitted to the roof side rail 104 via the vertical reinforcement 107 and the inner panel 102.

JP, 2013-35500, A

In the load transmission structure described above, the vertical reinforcement 107 that connects the wheel house 103 and the roof side rail 104 is joined to the front end edge of the strainer 105 and the rear end edge of the suspension tower gusset 106g, as shown in FIG. That is, the rear edge of the strainer 105 and the front edge of the suspension tower gusset 106g are not directly joined to the vertical reinforcement 107, but are joined to the inner panel 102 of the vehicle body 100. Therefore, the transmission efficiency of the suspension load between the strainer 105, the suspension tower gusset 106g, and the vertical reinforcement 107 becomes low. That is, stress is likely to be concentrated on the rear edge of the strainer 105 and the joint between the front edge of the suspension tower gusset 106g and the inner panel 102.

The present invention has been made to solve the above problems, and an object of the present invention is to prevent stress from concentrating at an intermediate position between a suspension load receiving portion of a wheel house and a roof side rail. And to improve the overall strength of the vehicle body.

The problems described above are solved by the inventions of the claims. The invention of claim 1 is a load transmitting structure for a vehicle, which receives a suspension load at a position of a wheel house of a vehicle body and transmits the load to a roof side rail which constitutes both edges of a roof in a vehicle width direction. A plurality of load receiving portions are provided at positions distant from each other in the vehicle front-rear direction, and each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the up-down direction. A hollow closed cross-section is formed by an outer member provided on the outer side in the vehicle width direction with respect to the inner panel of the vehicle body, and an inner member fitted to the outer member from the inner side in the vehicle width direction . The suspension load receiving portion constitutes a part of the inner member, and each of the suspension load receiving portions is aligned with the outer member from the inside in the vehicle width direction to form a hollow closed cross-sectional shape. The hollow closed cross-section skeleton is provided from the suspension load receiving portions to the roof side rails .

According to the present invention, each suspension load receiving portion of the wheel house and the roof side rail are connected by a skeleton extending in the vertical direction. Then, each skeleton is formed into a hollow closed cross-sectional shape by an outer member provided outside the inner panel of the vehicle body in the vehicle width direction and an inner member aligned with the outer member from the inner side in the vehicle width direction. Has been done. That is, the outer member and the inner member forming each skeleton have a one-to-one correspondence, and the hollow closed cross-sectional shape is formed by joining the edge of the outer member to the edge of the inner member. Therefore, the transmission efficiency of the load transmitted from the suspension load receiving portion to the outer member via the inner member of the skeleton is improved. Therefore, the suspension load can be efficiently transmitted to the roof side rail via the plurality of skeletons. As a result, stress is not concentrated at an intermediate position between the suspension load receiving portion of the wheel house and the roof side rail, and the overall strength of the vehicle body is improved.

According to the invention of claim 2, the suspension load receiving portion on the rear side of the wheel house is a suspension tower and a reinforcing material for a suspension tower that reinforces the suspension tower, and the suspension load receiving portion on the front side of the wheel house is of the suspension tower. It is a ridge-shaped reinforcing member that stands up along the wheel house at the front.

According to the invention of claim 3, the window opening is provided between the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house and the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house. There is. That is, even in a vehicle that has window openings at the same positions in the vehicle front-rear direction as the wheel house, the suspension load can be efficiently transmitted to the roof side rails.

According to the invention of claim 4, the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house and the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house are connected by a horizontal skeleton extending in the vehicle front-rear direction. ing. Therefore, a part of the front side suspension load applied to the front side suspension load receiving portion of the wheel house can be transmitted to the roof side rail by using the horizontal skeleton and the skeleton located on the rear side. Further, a part of the rear suspension load applied to the suspension load receiving portion on the rear side of the wheel house can be transmitted to the roof side rail by utilizing the horizontal skeleton and the skeleton located on the front side.

According to a fifth aspect of the present invention, there is provided a vehicle load transmission structure for receiving a suspension load at a position of a wheel house of a vehicle body and transmitting the suspension load to a roof side rail that constitutes both end edges of a roof in a vehicle width direction. A plurality of load receiving portions are provided at positions distant from each other in the vehicle front-rear direction, and each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the vertical direction. A hollow closed cross-section is formed by an outer member provided outside the inner panel of the vehicle body in the vehicle width direction and an inner member that is fitted to the outer member from the inner side in the vehicle width direction. The suspension load receiving portion on the rear side is a suspension tower and a reinforcing material for a suspension tower that reinforces the suspension tower, and the suspension load receiving portion on the front side of the wheel house is a protrusion that rises along the wheel house in front of the suspension tower. a strip-shaped reinforcing member, the inner member of the skeleton corresponding to the suspension load receiving portion of the front side of the wheel house, and the ridge-shaped reinforcing member, the inner of the vehicle body which is joined to the rib-like reinforcing member An outer member of the skeleton, which is made of a panel and corresponds to the suspension load receiving portion on the front side of the wheel house, is in a state of being joined to the front vertical reinforce and the front vertical reinforce, which are fitted to the ridge-shaped reinforcing member, A vertical edge reinforcing reinforcement that is fitted to the inner panel and reinforces the vertical edge of the door opening of the vehicle body.

According to a sixth aspect of the present invention, there is provided a vehicle load transmission structure for receiving a suspension load at a position of a wheel house of a vehicle body and transmitting the suspension load to a roof side rail that constitutes both vehicle width direction end edges of the roof. A plurality of load receiving portions are provided at positions distant from each other in the vehicle front-rear direction, and each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the up-down direction. The wheel house is formed into a hollow closed cross-sectional shape by an outer member provided outside the inner panel of the vehicle body in the vehicle width direction and an inner member that is fitted to the outer member from the inside in the vehicle width direction. The suspension load receiving portion on the rear side is a suspension tower and a reinforcement material for a suspension tower that reinforces the suspension tower, and the suspension load receiving portion on the front side of the wheel house is a protrusion that rises along the wheel house in front of the suspension tower. The inner member of the skeleton, which is a strip- shaped reinforcing member and corresponds to the suspension load receiving portion on the rear side of the wheel house, includes a suspension tower reinforcing member that reinforces the suspension tower, and the inner member that is joined to the suspension tower reinforcing member. The outer member of the skeleton, which is composed of a panel and corresponds to the suspension load receiving portion on the rear side of the wheel house, is a rear vertical reinforcement that is fitted to the reinforcement member for the suspension tower and the inner panel.

According to the present invention, stress is not concentrated at an intermediate position between the suspension load receiving portion of the wheel house and the roof side rail, and the overall strength of the vehicle body is improved.

FIG. 1 is a perspective view of a rear wheel house (outer panel omitted) of a vehicle including a load transmission structure according to a first embodiment of the present invention, as viewed from diagonally right front. It is a schematic side view which looked at the load transmission structure of the vehicle from the vehicle outside. FIG. 3 is a plan sectional view taken along the line III-III of FIGS. 1 and 2 (outer panel added). It is the perspective view which looked at the circumference of the rear wheel house of the above-mentioned vehicle from the back inside a car room (baggage room). FIG. 5 is a plan sectional view taken along the line V-V of FIG. 4. It is the perspective view which looked at the circumference of the rear wheel house of the above-mentioned vehicle from the vehicle interior side front. It is the side view which looked at the load transmission structure of the conventional vehicle from the vehicle interior side. FIG. 8 is a plan sectional view taken along the line VIII-VIII of FIG. 7.

[Embodiment 1]
Hereinafter, a vehicle load transmission structure according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The vehicle load transmission structure according to the present embodiment is a load transmission structure between a rear wheel house and a roof side rail in a sedan type passenger vehicle. Here, the front-rear, left-right, and top-bottom shown in the drawing correspond to the front-rear, left-right, and top-bottom of the passenger vehicle 10 (referred to as vehicle 10).

<Outline of rear structure of vehicle 10>
Since the rear portion of the vehicle body 12 is formed symmetrically, the configuration on the right side of the vehicle will be representatively described with reference to the drawings. The vehicle body 12 includes an outer panel 16 (not shown in FIGS. 1 and 2; see FIG. 3) that forms a design surface of the vehicle 10, and an inner panel 18 that supports the outer panel 16 from the inside. Further, as shown in FIG. 1, a rear door opening 14 is provided on the rear side surface of the vehicle body 12. The outer panel 16 is omitted in FIG. A rear wheel house 20 is provided behind the rear door opening 14 of the vehicle body 12 to cover a rear wheel (not shown) from above.

The rear wheel house 20 includes a wheel house outer 22 (see FIG. 1) provided outside the inner panel 18 of the vehicle body 12, and a wheel house inner 23 provided inside the inner panel 18 as shown in FIG. It consists of and. Then, the rear wheel house 20 is configured by joining the peripheral portion of the wheel house outer 22 and the peripheral portion of the wheel house inner 23 to each other by welding or the like. Further, as shown in FIG. 1 and the like, a roof side rail 15 that constitutes an edge of the roof of the vehicle body 12 in the vehicle width direction is provided above the rear door opening 14 so as to extend in the vehicle front-rear direction. ..

As shown in FIG. 4, a suspension tower 25 to which a shock absorber or the like of a rear suspension (not shown) is connected is provided at a central position of a wheel house inner 23 that constitutes the rear wheel house 20. A suspension tower gusset 26 that reinforces the suspension tower 25 is joined to the upper portion of the suspension tower 25 by welding or the like. That is, the suspension tower 25 and the suspension tower gusset 26 are configured to receive the suspension load. Therefore, the suspension tower 25 and the suspension tower gusset 26 correspond to the suspension load receiving portion of the wheel house in the present invention. Further, the suspension tower gusset 26 corresponds to the reinforcing material for suspension tower in the present invention.

As shown in FIGS. 4 and 6, the wheel house inner 23 is joined to the vehicle width direction end of the strainer 30 at a position ahead of the suspension tower 25. The strainer 30 is a gate-shaped skeletal member that supports a rear seat (not shown) from the rear and partitions the passenger compartment R and the luggage compartment N of the vehicle 10 together with the rear seat. As shown in FIG. 6, the strainer 30 is formed of left and right vertical protrusions 32 (left side omitted) that rise along the wheel house inner 23, and a lateral beam portion 34 that extends in the vehicle width direction.

The left and right vertical ribs 32 of the strainer 30 are configured to receive a suspension load, and the side surfaces of the vertical ribs 32 are joined to the wheel house inner 23 by welding or the like. Further, the lower end portion of the vertical protruding portion 32 is joined by welding or the like to the intersecting position of the floor side member 12s and the floor cross member 12c. That is, the vertical protruding portion 32 of the strainer 30 corresponds to the suspension load receiving portion of the wheel house and the protruding reinforcing member of the present invention. The lateral beam portion 34 of the strainer 30 is configured to support the front portion of the shelf-like portion 13 located on the rear side of the rear seat (not shown) from below. Further, as shown in FIG. 1, the vehicle body 12 is provided with a triangular window opening 19 behind the rear door opening 14 and below the roof side rail 15.

<About the load transmission structure of the vehicle 10>
The load transmission structure of the vehicle 10 is a structure for transmitting the suspension load applied to the suspension load receiving portion of the rear wheel house 20, that is, the vertical protrusion 32 of the strainer 30 and the suspension tower 25 to the roof side rail 15. As shown in FIGS. 1 to 3, the load transmission structure of the vehicle 10 includes a first skeleton 40 that transmits the suspension load received by the vertical protrusions 32 of the strainer 30 to the roof side rails 15, a suspension tower 25, and the like. The second skeleton 50 that transmits the received suspension load to the roof side rails 15 is provided. The first skeleton 40 is provided so as to extend vertically in front of the window opening 19, and the second skeleton 50 is provided so as to extend vertically in the rear side of the window opening 19. .. Further, the load transmission structure includes a horizontal skeleton 60 that extends in the vehicle front-rear direction along the lower side of the window opening 19 and connects the first skeleton 40 and the second skeleton 50.

<About the first skeleton 40>
As shown in FIGS. 1 to 3, the first skeleton 40 is for the front vertical reinforcement 41 provided outside the inner panel 18 of the vehicle body 12, and also for the rear door of the vehicle body 12 outside the inner panel 18. A vertical edge reinforcement reinforce 43 that reinforces the vertical edge of the opening 14 is provided. In addition, as shown in FIG. 3, the first skeleton 40 includes a vertical ridge portion 32 of the strainer 30 that is fitted to the front vertical reinforcement 41 from the inside in the vehicle width direction via the inner panel 18, and a vertical edge reinforcement reinforcement 43 on the vehicle. And a part of the inner panel 18 which is fitted from the inner side in the width direction.

As shown in FIG. 2 and the like, the front vertical reinforcement 41 that constitutes the first skeleton 40 is a reinforcement that extends in the vertical direction from the position of the wheel house outer 22 of the rear wheel house 20 to the position of the horizontal skeleton 60. As shown in FIGS. 3 and 5, the front vertical reinforcement 41 has a substantially hat-shaped cross section, and is provided with flange portions 41f at both widthwise end edges. The lower end of the front vertical reinforcement 41 is joined to the upper surface of the wheel house outer 22 by welding or the like, and the upper end of the front vertical reinforcement 41 is also joined to the lower front portion of the horizontal skeleton 60 by welding or the like. Further, as shown in FIGS. 3 and 5, the flange portions 41f at both widthwise edges of the front side vertical reinforcement 41 have flange portions 32x of the vertical protruding portions 32 of the strainer 30 via the inner panel 18 of the vehicle body 12, 32y is joined by welding or the like.

As shown in FIGS. 3 and 5, the vertical protrusions 32 of the strainer 30 that form the first skeleton 40 are formed in a substantially hat-shaped cross section by combining the front panel 32f and the rear panel 32b from the front and rear. ing. Then, flange portions 32x and 32y are provided at both widthwise end edges of the vertical protruding portion 32 of the strainer 30. Therefore, the front and rear flange portions 41f of the front vertical reinforce 41 and the flange portions 32x and 32y of the vertical protruding portion 32 of the strainer 30 are joined, so that the front vertical reinforcement 41 and the vertical protruding portion 32 of the strainer 30 are connected. The inside has a hollow flat cross section.

As shown in FIG. 2 etc., the vertical edge reinforcement reinforce 43 forming the first skeleton 40 extends vertically from the position of the wheel house outer 22 to the position of the horizontal skeleton 60, and further from the position of the horizontal skeleton 60 to the roof side rail. It is a reinforcement that extends obliquely along the window opening 19 up to the position 15. As shown in FIG. 1 etc., the vertical edge reinforcement reinforcement 43 is configured to be able to reinforce the vertical edge of the rear door opening 14 of the vehicle body 12 and the peripheral edge of the window opening 19. The vertical edge reinforcement reinforcement 43 includes a wide portion 43w extending from the position of the wheel house outer 22 to the position of the horizontal skeleton 60, and a narrow portion 43u extending from the position of the horizontal skeleton 60 to the position of the roof side rail 15. ..

As shown in FIGS. 3 and 5, the vertical edge reinforcement reinforcement 43 is formed in a substantially Z-shaped cross section, and the front side flange portion 43f is formed continuously with the front end edges of the wide portion 43w and the narrow portion 43u. Has been done. Further, a covering flange portion 43x is formed at the rear end edge of the wide portion 43w of the vertical edge reinforcement reinforce 43, and a window frame flange portion 43y is formed at the rear end edge of the narrow portion 43u as shown in FIG. Are formed. The lower end portion of the wide portion 43w of the vertical edge reinforcement reinforce 43 is joined to the upper surface portion of the wheel house outer 22 by welding or the like, and the upper end portion of the wide portion 43w is joined to the front side portion of the horizontal skeleton 60 by welding or the like. ing.

The covering flange portion 43x of the wide portion 43w of the vertical edge reinforcement reinforcement 43 is joined to the projecting surface of the front vertical reinforcement 41 by welding or the like, as shown in FIG. As shown in FIGS. 3 and 5, the front flange portion 43f of the wide portion 43w is joined to the end edge of the inner panel 18 that forms the rear door opening 14 of the vehicle body 12 by welding or the like. As a result, the inside of the wide portion 43w of the vertical edge reinforcement reinforcement 43, the front vertical reinforcement 41, and the inner panel 18 has a hollow flat sectional shape.

As shown in FIG. 2 and the like, the front side flange portion 43f of the narrow width portion 43u of the vertical edge reinforcement reinforce 43 includes the front side flange portion 43f of the wide width portion 43w and the inner side wall of the inner panel 18 that forms the rear door opening 14 of the vehicle body 12. It is joined to the edge by welding or the like. Further, the window frame flange portion 43y of the narrow portion 43u of the vertical edge reinforcement reinforce 43 is joined by welding or the like to the end edge of the inner panel 18 constituting the window frame of the window opening 19 as shown in FIG. ing. As a result, the inside of the narrow portion 43u of the vertical edge reinforcement reinforcement 43 and the inner panel 18 has a hollow flat cross-sectional shape. Further, the upper end portion of the narrow portion 43u of the vertical edge reinforcement reinforcement 43 is joined to the roof side rail 15 by welding or the like as shown in FIG. That is, the vertical ridge portions 32 of the strainer 30, which is a suspension load receiving portion, and the roof side rails 15 are connected by the first skeleton 40.

That is, the first skeleton 40 corresponds to the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house in the present invention. Further, the front vertical reinforcement 41 and the vertical edge reinforcement reinforcement 43 correspond to the outer member in the skeleton of the present invention. The vertical protrusion 32 of the strainer 30 and the inner panel 18 correspond to the inner member in the skeleton of the present invention.

<About the second skeleton 50>
As shown in FIGS. 1 to 5, the second skeleton 50 is provided with the rear vertical reinforcement 53 (see FIGS. 1 and 2) provided outside the inner panel 18 of the vehicle body 12 and the inner panel 18. The rear vertical reinforcement 53 is provided with a suspension tower gusset 26 fitted from the inside in the vehicle width direction. The rear side vertical reinforcement 53 that constitutes the second skeleton 50 is a reinforcement that extends in the vertical direction from the position of the wheel house outer 22 to the position of the roof side rail 15, as shown in FIG. 2 and the like. As shown in FIGS. 3 and 5, the rear vertical reinforcement 53 has a substantially hat-shaped cross section, and has flange portions 53f at both widthwise end edges.

The lower end of the rear vertical reinforcement 53 is joined to the upper surface of the wheel house outer 22 by welding or the like, and the upper end of the rear vertical reinforcement 53 is also joined to the roof side rail 15 by welding or the like. Further, the central portion in the height direction of the rear vertical reinforcement 53 is joined to the horizontal skeleton 60 by welding or the like, as shown in FIG. Then, as shown in FIG. 3, the flange portions 53f at both widthwise edges of the rear vertical reinforcement 53 are welded to the flange portions 26f at both edges of the suspension tower gusset 26 via the inner panel 18 of the vehicle body 12, respectively, by welding or the like. It is joined. As shown in FIGS. 4 and 5, the suspension tower gusset 26 is a member that reinforces the suspension tower 25 by connecting the upper surface 25h of the suspension tower 25 and the inner wall surface (inner panel 18) of the vehicle body 12.

As shown in FIG. 5, the suspension tower gusset 26 has a substantially hat-shaped cross section, and is provided with flange portions 26f at both widthwise end edges. The lower end of the suspension tower gusset 26 is joined to the upper surface 25h of the suspension tower 25 by welding or the like. Further, the flange portion 26f of the suspension tower gusset 26 is joined to the flange portion 53f of the rear vertical reinforcement 53 through the inner panel 18 as described above, so that the second skeleton 50 has a hollow flat cross-sectional shape. Here, the upper end of the suspension tower gusset 26 is joined to the shelf 13 and the horizontal skeleton 60 by welding or the like, as shown in FIG. Therefore, the second skeleton 50 above the shelf-like portion 13 and the horizontal skeleton 60 is formed into a hollow flat cross-sectional shape by the rear vertical reinforcement 53 and the inner panel 18. That is, the suspension tower gussets 26, which are suspension load receiving portions, and the roof side rails 15 are connected by the second skeleton 50.

<About the function of the load transmission structure of the vehicle 10>
The suspension load (hereinafter, referred to as a load) applied to the vertical protruding portion 32 of the strainer 30 is transmitted to the front vertical reinforcement 41 that constitutes the first skeleton 40 together with the vertical protruding portion 32, and the front vertical reinforcement 41 to the horizontal skeleton. 60 is transmitted. Further, the load of the vertical protruding portion 32 is transmitted to the horizontal skeleton 60 via the inner panel 18. Further, the load transmitted to the front side vertical reinforcement 41 and the horizontal skeleton 60 is transmitted to the wide portion 43w of the vertical edge reinforcing reinforcement 43. Then, it is transmitted to the roof side rail 15 via the narrow portion 43u of the vertical edge reinforcement reinforce 43 and the inner panel 18 that forms a hollow closed cross section together with the narrow portion 43u. Further, a part of the load transmitted to the horizontal skeleton 60 is transmitted to the roof side rail 15 via the rear vertical reinforcement 53 of the second skeleton 50 and the like.

The suspension load (hereinafter, referred to as a load) applied to the suspension tower 25 and the suspension tower gusset 26 is transmitted to the rear vertical reinforcement 53 that constitutes the second skeleton 50 together with the suspension tower gusset 26. Then, it is transmitted to the horizontal skeleton 60 by the rear vertical reinforcement 53. Further, the load of the suspension tower gusset 26 is transmitted to the horizontal skeleton 60 via the inner panel 18. Above the horizontal skeleton 60, the load transmitted to the rear vertical reinforcements 53 passes through the rear vertical reinforcements 53 and the rear vertical reinforcements 53 and the inner panel 18 that forms a hollow closed cross section, and thus the roof side rails 15 Be transmitted to. Further, a part of the load transmitted to the horizontal skeleton 60 is transmitted to the roof side rail 15 via the vertical edge reinforcement reinforcement 43 of the first skeleton 40 and the like.

<Advantages of the load transmission structure of the vehicle 10 according to the present embodiment>
According to the load transmission structure of the vehicle 10 according to the present embodiment, the suspension load receiving portions (the vertical protruding portions 32 of the strainer 30, the suspension tower gussets 26) of the rear wheel house 20 and the roof side rail 15 are respectively arranged in the vertical direction. Are connected by a first skeleton 40 and a second skeleton 50 extending in the direction. The first skeleton 40 is an outer member (front vertical reinforce 41, vertical edge reinforcement reinforce 43) provided on the outer side in the vehicle width direction with respect to the inner panel 18 of the vehicle body 12, and an inner side in the vehicle width direction with respect to the outer member. It is formed in a hollow closed cross-sectional shape by an inner member (vertical ridge portion 32 of the strainer 30) that is fitted to each other. Similarly, the second skeleton 50 is formed in a hollow closed cross-sectional shape by an outer member (rear side vertical reinforcement 53) and an inner member (sustower gusset 26) that is fitted to the outer member from the inside in the vehicle width direction.

That is, the outer member and the inner member forming each skeleton 40, 50 have a one-to-one correspondence, and the edge of the outer member is joined to the edge of the inner member to form a hollow closed cross-sectional shape. To be done. Therefore, the transmission efficiency of the load transmitted from the suspension load receiving portion to the outer member via the inner member is improved. Therefore, the suspension load can be efficiently transmitted to the roof side rail 15 via the plurality of skeletons 40 and 50. As a result, stress is not concentrated at an intermediate position between the suspension load receiving portion of the rear wheel house 20 and the roof side rail 15, and the overall strength of the vehicle body 12 is improved.

The first skeleton 40 and the second skeleton 50 are connected by a horizontal skeleton 60 extending in the vehicle front-rear direction. Therefore, a part of the load applied to the front suspension load receiving portion (the vertical protruding portion 32 of the strainer 30) of the rear wheel house 20 is utilized by utilizing the horizontal skeleton 60 and the rear second skeleton 50. 15 can be transmitted. Further, a part of the load applied to the suspension load receiving portion (sustain tower gusset 26) on the rear side of the rear wheel house 20 is transmitted to the roof side rail 15 by using the horizontal skeleton 60 and the first skeleton 40 located on the front side. be able to. Therefore, the load is efficiently applied to the first skeleton 40 and the second skeleton 50.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and modifications can be made without departing from the gist of the present invention. For example, in the present embodiment, an example in which the first skeleton 40 and the second skeleton 50 are connected by the horizontal skeleton 60 has been shown, but the horizontal skeleton 60 may be omitted. Further, in the present embodiment, the example in which the window opening 19 is provided between the first skeleton 40 and the second skeleton 50 has been shown, but the window opening 19 may be omitted. Further, in the present embodiment, the example in which the outer member of the first skeleton 40 is configured by the front vertical reinforce 41 and the vertical edge reinforcement reinforce 43 is shown. However, it is also possible to integrate the front side vertical reinforcement 41 and the vertical edge reinforcement reinforcement 43.

Further, in the present embodiment, an example in which the first skeleton 40 above the horizontal skeleton 60 is formed into a hollow closed cross-sectional shape by the vertical edge reinforcement reinforcement 43 and the inner panel 18 has been shown. However, the window opening 19 is omitted, the vertical ridge 32 of the strainer 30 is extended above the horizontal skeleton 60, and the upper portion of the first skeleton 40 is hollowly closed by the vertical ridge 32 and the vertical edge reinforcement reinforcement 43. It is also possible to form a cross-sectional shape. Further, in the present embodiment, an example in which the second skeleton 50 above the horizontal skeleton 60 is formed into a hollow closed cross-sectional shape by the rear vertical reinforce 53 and the inner panel 18 has been shown. However, the window opening 19 may be omitted, the suspension tower gusset 26 may be extended above the horizontal skeleton 60, and the upper portion of the second skeleton 50 may be formed into a hollow closed cross-sectional shape by the suspension tower gusset 26 and the rear vertical reinforcement 53. It is possible. Further, in the present embodiment, the load transmission structure including the first skeleton 40 and the second skeleton 50 has been exemplified, but the skeleton may be added in the vehicle front-rear direction.

12... Vehicle body 14... Rear door opening 15... Roof side rail 18... Inner panel (inner member of first skeleton, second skeleton)
19... Window opening 20... Rear wheel house (wheel house)
25... Sus tower (suspension load receiving part on the rear side of the hall house)
26... Suspension gusset (reinforcement for suspension tower, suspension load receiving part on the rear side of the hall house, inner member of the second skeleton)
32... Vertical ridge (suspension load receiving portion on the front side of the hall house, ridge-shaped reinforcing member, inner member of the first skeleton)
40... First skeleton (skeleton for the suspension load receiving portion on the front side of the wheel house)
41... Front vertical reinforcement (outer member of the first skeleton)
43... Vertical edge reinforcement reinforcement (outer member of the first skeleton)
50: Second skeleton (skeleton for the suspension load receiving portion on the rear side of the wheel house)
53... Rear vertical reinforcement (outer member of the second skeleton)
60... Horizontal skeleton

Claims (6)

A load transmission structure for a vehicle, which receives a suspension load at a position of a wheel house of a vehicle body and transmits it to a roof side rail that constitutes both edges in a vehicle width direction of a roof,
A plurality of suspension load receiving portions of the wheel house are provided at positions separated in the vehicle front-rear direction,
Each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the vertical direction,
Each skeleton is formed in a hollow closed cross-sectional shape by an outer member provided on the outer side in the vehicle width direction with respect to the inner panel of the vehicle body, and an inner member fitted to the outer member from the inner side in the vehicle width direction. and,
Each of the suspension load receiving portions constitutes a part of the inner member, and the suspension load receiving portions are aligned with the outer member from the inside in the vehicle width direction to form a hollow closed cross-sectional shape. And
A vehicle load transmission structure in which the skeleton having the hollow closed cross-sectional shape is provided from each of the suspension load receiving portions to the roof side rail . The load transmission structure for a vehicle according to claim 1,
The suspension load receiving portion on the rear side of the wheel house is a suspension tower and a suspension tower reinforcing material that reinforces the suspension tower,
The vehicle load transmission structure in which the suspension load receiving portion on the front side of the wheel house is a ridge-shaped reinforcing member that stands up along the wheel house in front of the suspension tower. The load transmission structure for a vehicle according to claim 1 or 2,
A vehicle load transmission in which an opening for a window is provided between the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house and the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house. Construction. The load transmission structure for a vehicle according to any one of claims 1 to 3,
A vehicle load in which the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house and the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house are connected by a horizontal skeleton extending in the vehicle front-rear direction. Transmission structure. A load transmission structure for a vehicle, which receives a suspension load at a position of a wheel house of a vehicle body and transmits it to a roof side rail that constitutes both edges in a vehicle width direction of a roof,
A plurality of suspension load receiving portions of the wheel house are provided at positions separated in the vehicle front-rear direction,
Each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the vertical direction,
Each skeleton is formed in a hollow closed cross-sectional shape by an outer member provided on the outer side in the vehicle width direction with respect to the inner panel of the vehicle body, and an inner member fitted to the outer member from the inner side in the vehicle width direction. And
The suspension load receiving portion on the rear side of the wheel house is a suspension tower and a suspension tower reinforcing material that reinforces the suspension tower,
The suspension load receiving portion on the front side of the wheel house is a ridge-shaped reinforcing member that stands up along the wheel house in front of the suspension tower,
The inner member of the skeleton corresponding to the suspension load receiving portion on the front side of the wheel house includes the ridge-shaped reinforcing member and an inner panel of the vehicle body joined to the ridge-shaped reinforcing member,
The outer member of the skeleton corresponding to the front suspension load receiving portion of the wheel house is a front vertical reinforcement that is fitted to the ridge-shaped reinforcing member, and is joined to the front vertical reinforcement and is fitted to the inner panel. And a vertical edge reinforcement reinforcement for reinforcing the vertical edge of the door opening of the vehicle body. A load transmission structure for a vehicle, which receives a suspension load at a position of a wheel house of a vehicle body and transmits it to a roof side rail that constitutes both edges in a vehicle width direction of a roof,
A plurality of suspension load receiving portions of the wheel house are provided at positions separated in the vehicle front-rear direction,
Each suspension load receiving portion and the roof side rail are connected by a skeleton extending in the vertical direction,
Each skeleton is formed in a hollow closed cross-sectional shape by an outer member provided on the outer side in the vehicle width direction with respect to the inner panel of the vehicle body, and an inner member fitted to the outer member from the inner side in the vehicle width direction. And
The suspension load receiving portion on the rear side of the wheel house is a suspension tower and a suspension tower reinforcing material that reinforces the suspension tower,
The suspension load receiving portion on the front side of the wheel house is a ridge-shaped reinforcing member that stands up along the wheel house in front of the suspension tower,
The inner member of the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house includes a suspension tower reinforcing material that reinforces the suspension tower, and the inner panel joined to the suspension tower reinforcing material,
The vehicle load transmission structure in which the outer member of the skeleton corresponding to the suspension load receiving portion on the rear side of the wheel house is a rear vertical reinforcement that is fitted to the reinforcement for the suspension tower and the inner panel.

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