CN104290819A

CN104290819A - Rear vehicle body part configuration

Info

Publication number: CN104290819A
Application number: CN201410341437.1A
Authority: CN
Inventors: 小林成高
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2013-07-19
Filing date: 2014-07-17
Publication date: 2015-01-21
Anticipated expiration: 2034-07-17
Also published as: CN104290819B; JP2015020609A; JP5711313B2

Abstract

Provided is a rear vehicle body part configuration, which well ensures load transmission efficiency for a vehicle with rear corner window glass. The rear vehicle body part configuration (10) comprises a left vehicle top side rail (12) and a left rear post (16). A first rear track reinforcing member ridge (102) is formed on a rear track reinforcing member (82) of the left vehicle top side rail (12) at the part where a second rear track reinforcing member flange (101) and a vertical rear track reinforcing member wall (97) are intersected. A first post reinforcing member ridge (128) is formed on a post reinforcing member (112) of the left rear post (106) at the part where a second post reinforcing member flange (127) and a vertical post reinforcing member wall (124) are intersected. The first post reinforcing member ridge (128) and the first rear track reinforcing member ridge (102) are formed in a continuous manner.

Description

Back structure of vehicle body

Technical field

The present invention relates to roof siding track along vehicle body fore-and-aft direction extend and rear pillar from the rear end of roof siding track towards vehicle body rear and the back structure of vehicle body that extends downwards.

Background technology

In back structure of vehicle body, exist and construct as follows: rear pillar extends with the downward gradient from the rear end of roof siding track towards vehicle body rear, between wainscot and outer panels, be provided with the reinforcement strengthened in order to ensure the rigidity of rear pillar.

Rear pillar, by the joint of each flange of wainscot, outer panels and reinforcement, to clamp the state of reinforcement between two panels, forms closed section (for example, referring to patent documentation 1) by reinforcement and wainscot.

Prior art document

Patent documentation

Patent documentation 1: Japanese Patent Publication 1-69080 publication

Summary of the invention

At this, rear pillar according to the viewpoint in vehicle body shape and design, with the viewpoint in the layout of the miscellaneous part (such as, rear combination lamp etc.) adjacent with rear pillar and determine cross sectional shape.Owing to being subject to the impact of these viewpoints, so be difficult to the cross sectional shape forming rear pillar on the length direction of rear pillar equably.That is, think that the cross sectional shape of rear pillar is unequal on the length direction of rear pillar.

And the cross sectional shape of rear pillar and rear pillar correspondingly determines the cross sectional shape of reinforcement.This reinforcement is flexed into cross section convex or concavity thus is formed with crest line.

Think because the cross sectional shape of rear pillar is unequal, so the crest line of reinforcement is formed as concavo-convex on the length direction of rear pillar.When the crest line of reinforcement is formed as concavo-convex, be difficult to the crest line transmitted load well by reinforcement.

Especially, in vehicle, rear pillar extends along the rear corner window (window frame) installing rear corner window glass (rear quarter glass), strengthens rear corner window by the rear pillar extended.In order to the glass for vehicle window with side door evenly configures rear corner window glass, the window frame of rear corner window bloats outside overall width direction.

Therefore, when having the vehicle of rear corner window glass, the crest line of reinforcement is formed as concavo-convex significantly on the length direction of rear pillar, is more difficult to by crest line transmitted load well.

Technical task of the present invention is, provides the back structure of vehicle body can guaranteeing the transmission efficiency of load in a kind of vehicle having rear corner window glass well.

Technical scheme 1 of the present invention is a kind of back structure of vehicle body, has: the roof siding track of left and right, and it extends along vehicle body fore-and-aft direction at the left and right sides of body top section; The rear pillar of left and right, it also extends downwards from the rear end of described roof siding track towards vehicle body rear; Rear corner window, it forms top by described roof siding track, and forms back by described rear pillar, and the feature of this back structure of vehicle body is, described roof siding track has: the track interior part extended along vehicle body fore-and-aft direction; Engage with this track interior part with outside car and form the track reinforcement of closed section together with described track interior part, described track interior part has: the track interior part longitudinal wall forming wall portion relative on overall width direction; The track interior part cross wall extended outside overall width direction from the lower end of this track interior part longitudinal wall; The 1st track interior part flange extended inside overall width direction from the upper end of described track interior part longitudinal wall; Extend downwards with the overall width direction external side end from described track interior part cross wall and form the 2nd track interior part flange of the described top of described rear corner window, described track reinforcement has: and the track reinforcement longitudinal wall that with separating predetermined distance be arranged on overall width direction outside relative with described track interior part longitudinal wall; Extend inside overall width direction from the upper end of this track reinforcement longitudinal wall and separate the relative track reinforcement cross wall in predetermined distance ground with described track interior part cross wall; Extend and the 1st track reinforcement flange engaged with described 1st track interior part flange from the overall width direction medial extremity of this track reinforcement cross wall; Extend outside overall width direction from the lower end of described track reinforcement longitudinal wall and the 2nd track reinforcement flange engaged with described track interior part cross wall; With track reinforcement the 1st crest line being formed in the position that the 2nd track reinforcement flange and described track reinforcement longitudinal wall intersect, described rear pillar has: from the rear end of described track interior part towards vehicle body rear and the post inner component extended downwards; Engage with this post inner component with outside car and form the post reinforcement of closed section together with described post inner component, described post inner component has: the post inner component longitudinal wall forming wall portion relative on overall width direction; The post inner component cross wall extended outside overall width direction from the front end of this post inner component longitudinal wall; The 1st post inner component flange extended to vehicle body rear from the rear end of described post inner component longitudinal wall; With extend from the overall width direction external side end of described post inner component cross wall to vehicle front and form the 2nd post inner component flange of the described back of described rear corner window, described post reinforcement has: and the post reinforcement longitudinal wall that with separating predetermined distance be arranged on overall width direction outside relative with described post inner component longitudinal wall; Extend inside overall width direction from the rear end of this post reinforcement longitudinal wall and separate the relative post reinforcement cross wall in predetermined distance ground with described post inner component cross wall; Extend and the 1st post reinforcement flange engaged with described 1st post inner component flange from the overall width direction medial extremity of this post reinforcement cross wall; Extend outside overall width direction from the front end of described post reinforcement longitudinal wall and the 2nd post reinforcement flange engaged with described post inner component cross wall; With post reinforcement the 1st crest line being formed in the position that the 2nd post reinforcement flange and described post reinforcement longitudinal wall intersect, this post reinforcement the 1st crest line and described track reinforcement the 1st crest line continuous.

The feature of technical scheme 2 is, the rear end in order to the rear pillar by described left and right is joined to one another and has the rear panel extended along overall width direction, and described rear panel has: rear panel relative is in the longitudinal direction generally facial; From the rear panel longitudinal wall that the general face of this rear panel erects to vehicle body rear; The rear panel cross wall extended from the rear end of this rear panel longitudinal wall to overall width center side; With rear panel the 1st crest line being formed in the position that the general face of described rear panel longitudinal wall and described rear panel intersects, this rear panel the 1st crest line and described post reinforcement the 1st crest line continuous.

The feature of technical scheme 3 is, described track interior part has track interior part the 1st crest line at the position being formed in described track interior part cross wall and described 2nd track interior part flange intersection, described post inner component has post inner component the 1st crest line at position being formed in described post inner component cross wall and described 2nd post inner component flange and intersecting, this post inner component the 1st crest line and described track interior part the 1st crest line continuous.

The feature of technical scheme 4 is, have and be positioned at vehicle front than described rear pillar and the quarter line pillaring extended from the length direction midway of described roof siding track downwards, described quarter line pillaring have be arranged on upper end and inside overall width direction outstanding and protrusion that is that engage with described track reinforcement longitudinal wall.

Technical scheme 5 is a kind of back structure of vehicle body, has: the rear pillar of left and right, and it also extends downwards from the left and right sides of body top section towards vehicle body rear; Rear corner window, it forms back by described rear pillar; And rear panel, its rear end in order to the rear pillar by described left and right is joined to one another and extends along overall width direction, the feature of this back structure of vehicle body is, described rear pillar has: the post inner component also extended downwards from the rear end of described track interior part towards vehicle body rear; Engage with this post inner component with outside car and form the post reinforcement of closed section together with described post inner component, described post inner component has: the post inner component longitudinal wall forming wall portion relative on overall width direction; The post inner component cross wall extended outside overall width direction from the front end of this post inner component longitudinal wall; The 1st post inner component flange extended to vehicle body rear from the rear end of described post inner component longitudinal wall; With extend from the overall width direction external side end of described post inner component cross wall to vehicle front and form the 2nd post inner component flange of the described back of described rear corner window, described post reinforcement has: and the post reinforcement longitudinal wall that with separating predetermined distance be arranged on overall width direction outside relative with described post inner component longitudinal wall; Extend inside overall width direction from the rear end of this post reinforcement longitudinal wall and separate the relative post reinforcement cross wall in predetermined distance ground with described post inner component cross wall; Extend and the 1st post reinforcement flange engaged with described 1st post inner component flange from the overall width direction medial extremity of this post reinforcement cross wall; Extend outside overall width direction from the front end of described post reinforcement longitudinal wall and the 2nd post reinforcement flange engaged with described post inner component cross wall; With post reinforcement the 1st crest line being formed in the position that the 2nd post reinforcement flange and described post reinforcement longitudinal wall intersect, described rear panel has: rear panel relative is in the longitudinal direction generally facial; From the rear panel longitudinal wall that the general face of this rear panel erects to vehicle body rear; The rear panel cross wall extended from the rear end of this rear panel longitudinal wall to overall width center side; With rear panel the 1st crest line being formed in the position that the general face of described rear panel longitudinal wall and described rear panel intersects, this rear panel the 1st crest line and described post reinforcement the 1st crest line continuous.

The feature of technical scheme 6 is, described rear panel has the rear panel flanges extended to vehicle body rear from the overall width direction external side end of the general face of described rear panel, and the distance between described rear panel longitudinal wall and described rear panel flanges is greater than the distance between described track reinforcement longitudinal wall and described 2nd track interior part flange.

The feature of technical scheme 7 is, the distance between distance, described rear panel longitudinal wall and described rear panel flanges between distance, described post reinforcement longitudinal wall and described 2nd post inner component flange between described track reinforcement longitudinal wall and described 2nd track interior part flange increases gradually along with trending towards described rear panel from described roof siding track.

Invention effect

In the invention of technical scheme 1, in back structure of vehicle body, there is rear corner window.In addition, the top of rear corner window (upper mounting flange) is formed by the 2nd track interior part flange, the back of rear corner window (rear mounting flange) is formed by the 2nd post inner component flange.

And the position intersected at the 2nd track reinforcement flange and track reinforcement longitudinal wall is formed with track reinforcement the 1st crest line, the position intersected at the 2nd post reinforcement flange and post reinforcement longitudinal wall is formed with post reinforcement the 1st crest line.

Thereby, it is possible to guaranteed rigidity, the intensity of back structure of vehicle body by track reinforcement the 1st crest line and post reinforcement the 1st crest line.

And, post reinforcement the 1st crest line and track reinforcement the 1st crest line are linked.Post reinforcement the 1st crest line and track reinforcement the 1st crest line can be made not have under concavo-convex state continuously.Thus, when input has load in roof siding track and rear pillar, the position producing stress because of the load of input and concentrate can be reduced, that is, the position becoming displacement starting point because of the load of input can be reduced.

Thus, in the vehicle with rear corner window glass, the transmission efficiency of the load be input in roof siding track and rear pillar can be kept well, the rigidity of back structure of vehicle body, intensity can be guaranteed.

Especially, the junction of roof siding track and rear pillar is near the concave corner part of the upside of the tail-gate peristome of body tail and near the elbows being positioned at the rear side of roof panel.Tail-gate peristome is the peristome of the opening and closing by tail-gate.

Thus, think that stress easily concentrates on the junction surface of roof siding track and rear pillar.Therefore, rigidity, the intensity at the junction surface of roof siding track and rear pillar is ensure that by track reinforcement the 1st crest line and post reinforcement the 1st crest line.

By improving rigidity, the intensity at the junction surface of roof siding track and rear pillar, body performance (travelling comfort, road-holding property etc.) can be improved.

In addition, by parts cross wall in orbit engages the 2nd track reinforcement flange, track reinforcement longitudinal wall can be leaned on inside overall width direction than the 2nd track interior part flange and configure.Thereby, it is possible to guarantee space (space) between track reinforcement longitudinal wall and the 2nd track interior part flange.Thus, under the state by secure component fastening rail reinforcement longitudinal wall and track interior part longitudinal wall, the secure component outstanding from track reinforcement longitudinal wall can be received in space.

In the invention of technical scheme 2, the position that plate longitudinal wall and the general face of rear panel intersect is below formed with rear panel the 1st crest line.Thereby, it is possible to guaranteed rigidity, the intensity of back structure of vehicle body by rear panel the 1st crest line.

And, make rear panel the 1st crest line and post reinforcement the 1st crest line continuous.Rear panel the 1st crest line, post reinforcement the 1st crest line and track reinforcement the 1st crest line can be made not to have under concavo-convex state continuously.Thus, when input has load in plate, rear pillar and roof siding track below, the position producing stress because of the load of input and concentrate can be reduced, that is, the position becoming displacement starting point because of the load of input can be reduced.

Thus, in the vehicle with rear corner window glass, the transmission efficiency of the load be input in rear panel, rear pillar and roof siding track can be kept well, the rigidity of back structure of vehicle body, intensity can be guaranteed.

Especially, the junction of rear pillar and rear panel is near the concave corner part of the downside of the tail-gate peristome of body tail.Thus, think that stress easily concentrates on the junction surface of rear pillar and rear panel.Therefore, rigidity, the intensity at the junction surface of rear pillar and rear panel is ensure that by post reinforcement the 1st crest line and rear panel the 1st crest line.

By improving rigidity, the intensity at the junction surface of rear pillar and rear panel, body performance (travelling comfort, road-holding property etc.) can be improved.

In the invention of technical scheme 3, the 2nd track interior part flange of the top (upper mounting flange) forming rear corner window can be strengthened by track interior part the 1st crest line.In addition, the 2nd post inner component flange of the back (rear mounting flange) forming rear corner window can be strengthened by post inner component the 1st crest line.

Thereby, it is possible to guarantee the top of rear corner window and rigidity, the intensity of back.

And, make post inner component the 1st crest line and track interior part the 1st crest line continuous.Post inner component the 1st crest line and track interior part the 1st crest line can be made not have under concavo-convex state continuously.Thus, when input has load in roof siding track and rear pillar, the position producing stress because of the load of input and concentrate can be reduced, that is, the position becoming displacement starting point because of the load of input can be reduced.

In the invention of technical scheme 4, be provided with protrusion in the upper end of quarter line pillaring, make protrusion outstanding and engage with track reinforcement longitudinal wall inside overall width direction.Thereby, it is possible to make the upper end of quarter line pillaring engage securely with roof siding track, the rigidity of back structure of vehicle body, intensity can be guaranteed.

In the invention of technical scheme 5, in back structure of vehicle body, there is rear corner window.In addition, the back of rear corner window (rear mounting flange) is made to be formed by rear pillar.And the position intersected at the 2nd post reinforcement flange and post reinforcement longitudinal wall is formed with post reinforcement the 1st crest line, the position that plate longitudinal wall and the general face of rear panel intersect is below formed with rear panel the 1st crest line.

Thereby, it is possible to guaranteed rigidity, the intensity of back structure of vehicle body by post reinforcement the 1st crest line and rear panel the 1st crest line.

And, make rear panel the 1st crest line and post reinforcement the 1st crest line continuous.Rear panel the 1st crest line and post reinforcement the 1st crest line can be made not have under concavo-convex state continuously.Thus, when input has load in plate and rear pillar below, the position producing stress because of the load of input and concentrate can be reduced, that is, the position becoming displacement starting point because of the load of input can be reduced.

Thus, in the vehicle with rear corner window glass, the transmission efficiency of the load be input in rear panel and rear pillar can be kept well, the rigidity of back structure of vehicle body, intensity can be guaranteed.

In the invention of technical scheme 6, increase the distance between rear panel longitudinal wall and rear panel flanges.Thus, when outer plate panel (outer panels) being joined on rear panel flanges by spot welding, the electrode of spot welding (so-called welding gun) can be configured in the space between rear panel longitudinal wall and rear panel flanges.

Thereby, it is possible to easily outer plate panel (outer panels) is joined on rear panel flanges by spot welding.

In the invention of technical scheme 7, the distance between distance, rear panel longitudinal wall and rear panel flanges between the distance between track reinforcement longitudinal wall and the 2nd track interior part flange, post reinforcement longitudinal wall and the 2nd post inner component flange is increased gradually along with trending towards rear panel from roof siding track.

At this, be respectively equipped with track reinforcement the 1st crest line, post reinforcement the 1st crest line and rear panel the 1st crest line along track reinforcement longitudinal wall, post reinforcement longitudinal wall and rear panel longitudinal wall.The 1st crest line of the inner side be configured in inside overall width direction is formed by track reinforcement the 1st crest line, post reinforcement the 1st crest line and rear panel the 1st crest line.

In addition, track interior part the 1st crest line, post inner component the 1st crest line and rear panel flanges the 1st crest line is respectively equipped with along the 2nd track interior part flange, the 2nd post inner component flange and rear panel flanges.The 1st crest line in the outside be configured in outside overall width direction is formed by track interior part the 1st crest line, post inner component the 1st crest line and rear panel flanges the 1st crest line.

Inner side the 1st crest line and outside the 1st crest line between distance increase gradually along with trending towards rear panel from roof siding track.That is, the 1st crest line of inner side and the 1st crest line in outside are formed as end expansion shape.

Thereby, it is possible to make the 1st crest line of inner side and the 1st crest line in outside in the scope of roof siding track, rear pillar and rear panel not have concavo-convex state continuous.

Not have under concavo-convex state continuously by the 1st crest line of the 1st crest line and outside that make inner side, in the 1st crest line of inner side and the 1st crest line in outside, can reduce and produce the concentrated position of stress because of the load of input, that is, the position becoming displacement starting point because of the load of input can be reduced.

Accompanying drawing explanation

Fig. 1 is the block diagram representing back structure of vehicle body of the present invention.

Fig. 2 is the exploded perspective view of the back structure of vehicle body representing Fig. 1.

Fig. 3 is 3 enlarged drawings of Fig. 2.

Fig. 4 is 4 enlarged drawings of Fig. 3.

Fig. 5 is the 5-5 line cutaway view of Fig. 4.

Fig. 6 is 6 enlarged drawings of Fig. 3.

Fig. 7 is the exploded perspective view of the back structure of vehicle body representing Fig. 6.

Fig. 8 is the 8-8 line cutaway view of Fig. 1.

Fig. 9 is the 9-9 line cutaway view of Fig. 6.

Figure 10 is the 10-10 line cutaway view of Fig. 1.

Figure 11 is the 11-11 line cutaway view of Fig. 1.

Figure 12 is the 12-12 line cutaway view of Fig. 3.

Figure 13 is the 13-13 line cutaway view of Fig. 3.

Figure 14 is the figure of the 1st crest line that back structure of vehicle body of the present invention is described.

Figure 15 is the 15-15 line cutaway view of Fig. 6.

Description of reference numerals

10 ... back structure of vehicle body, 11 ... body top section, 12 ... the roof siding track of left and right, 12a ... the rear end of the roof siding track of left and right, 13 ... quarter line pillaring, 13a ... the upper end (upper end of quarter line pillaring) of post reinforcement, 16 ... the rear pillar of left and right, 16a ... the rear end of the rear pillar of left and right, 17 ... rear panel, 18 ... rear corner window, 19a ... the top of rear corner window, 19c ... the back of rear corner window, 81 ... rear track interior part (track interior part), 81b ... the rear end of rear track interior part, 82 ... rear track reinforcement (track reinforcement), 91 ... rear track interior part longitudinal wall (track interior part longitudinal wall), 91a ... the lower end of rear track interior part longitudinal wall, 91b ... the upper end of rear track interior part longitudinal wall, 92 ... rear track interior part cross wall (track interior part cross wall), 92a ... the overall width direction external side end of rear track interior part cross wall, 93 ... track interior part flange (the 1st track interior part flange) after 1st, 94 ... track interior part flange (the 2nd track interior part flange) after 2nd, 95 ... rear track interior part the 1st crest line (track interior part the 1st crest line), 97 ... rear track reinforcement longitudinal wall (track reinforcement longitudinal wall), 97a ... the upper end of rear track reinforcement longitudinal wall, 97b ... the lower end of rear track reinforcement longitudinal wall, 98 ... rear track reinforcement cross wall (track reinforcement cross wall), 98a ... the overall width direction medial extremity of rear track reinforcement cross wall, 99 ... track reinforcement flange (the 1st track reinforcement flange) after 1st, 101 ... track reinforcement flange (the 2nd track reinforcement flange) after 2nd, 102 ... rear track reinforcement the 1st crest line (track reinforcement the 1st crest line), 111 ... post inner component, 112 ... post reinforcement, 116 ... post inner component longitudinal wall, 116a ... the front end of post inner component longitudinal wall, 116b ... the rear end of post inner component longitudinal wall, 117 ... post inner component cross wall, 117a ... the overall width direction external side end of post inner component cross wall, 118 ... 1st post inner component flange, 119 ... 2nd post inner component flange, 121 ... post inner component the 1st crest line, 124 ... post reinforcement longitudinal wall, 124a ... the rear end of post reinforcement longitudinal wall, 124b ... the front end of post reinforcement longitudinal wall, 125 ... post reinforcement cross wall, 125a ... the overall width direction medial extremity of post reinforcement cross wall, 126 ... 1st post reinforcement flange, 127 ... 2nd post reinforcement flange, 128 ... post reinforcement the 1st crest line, 141 ... rear panel is generally facial, 142 ... rear panel longitudinal wall, 142a ... the rear end of rear panel longitudinal wall, 143 ... rear panel cross wall, 145 ... 2nd rear panel flanges (rear panel flanges), 147 ... 1st crest line (rear panel the 1st crest line) inside rear panel, 152 ... rear protrusion (protrusion), L2 ... distance after rear track reinforcement longitudinal wall and the 2nd between track interior part flange, L3 ... distance between post reinforcement longitudinal wall and the 2nd post inner component flange, L4 ... distance between rear panel longitudinal wall and the 2nd rear panel flanges.

Detailed description of the invention

Below, illustrate for implementing best mode of the present invention based on accompanying drawing.In addition, " front (Fr) ", " rear (Rr) ", " left (L) ", " right (R) " according to from the angle views of chaufeur to direction.

[embodiment]

The back structure of vehicle body 10 of embodiment is described.

As shown in Figure 1 and Figure 2, back structure of vehicle body 10 has: at the roof siding track 12 of the left and right that the left and right sides of body top section 11 extends along vehicle body fore-and-aft direction; From the quarter line pillaring (quarter pillar) 13 of the left and right that the length direction midway of the roof siding track 12 of left and right extends downwards; By the rear roof rail 14 that the rear end 12a of the roof siding track 12 of left and right is joined to one another; With the roof panel 15 of the roof siding track 12 from top covering rear roof rail 14 and left and right.

In addition, back structure of vehicle body 10 has: the rear pillar 16 of the left and right also extended downwards from the rear end 12a of the roof siding track 12 of left and right towards vehicle body rear; By the rear panel 17 that rear end (lower end) 16a of the rear pillar 16 of left and right is joined to one another; With the rear corner window 18 of left and right at vehicle body rear of quarter line pillaring 13 being arranged on left and right.

And back structure of vehicle body 10 also has: from the left outside panel 21 of car outer side covers left roof siding track 12, left side pillar 13 and left back post 16; With the right outside panel (not shown) from car outer side covers right roof siding track 12, the right pillar 13 and right back post 16.

This back structure of vehicle body 10 is formed with tail-gate peristome 23 by the rear pillar 16 of rear roof rail 14, left and right and rear panel 17 substantially rectangularly.On tail-gate peristome 23, opening and closing is supported with tail-gate 24 freely.

In addition, the rear side car door 26 (right lateral side car door is not shown) of left and right is supported with freely in the upper opening and closing in the rear openings portion 25 (right lateral side peristome is not shown) of the left and right of back structure of vehicle body 10.Left rear side car door 26 has side window glass 27.

And the rear corner window 18 of left and right has window frame 19.Window frame 19 has rear corner window glass 28.

In addition, back structure of vehicle body 10 is roughly symmetrical parts, below, left-hand side part is described and omits the explanation of right side members.

As shown in Figure 3, left roof siding track 12 has: the front roof siding track 32 arranged by vehicle front than the upper end 13a of left side pillar 13; The in the past central roof siding track 33 that extends to vehicle body rear of the rear end 32a of roof siding track 32; With the rear car roof side rail (roof siding track) 34 extended to vehicle body rear from the rear end 33a of central roof side rail 33.

As shown in Figure 4, front roof siding track 32 is arranged by vehicle front than the upper end 13a of left side pillar 13, and extends along vehicle body fore-and-aft direction.The front end 33b of central roof siding track 33 is linked with at the rear end 32a of front roof siding track 32.

Extend along vehicle body fore-and-aft direction under the state that central authorities' roof siding track 33 links at the upper end 13a of central portion 33c and left side pillar 13.The front end 34a of rear car roof side rail 34 is linked with at the rear end 33a of central roof siding track 33.

Rear car roof side rail 34 extends from the rear end 33a of central roof side rail 33 to vehicle body rear.

By top (upper mounting flange) 19a forming left back quarter window 18 than left side pillar 13 by the position 33d of vehicle body rear side and rear car roof side rail 34 in central roof siding track 33.

About the structure of front roof siding track 32, central roof siding track 33 and rear car roof side rail 34, will describe in detail below.

Left side pillar 13 extends to rear left wheel cover 36 downwards from the central portion 33c of central roof side rail 33.Left side pillar 13 is arranged by vehicle front than left back post 16, is formed front (front mounting flange) 19b of left back quarter window 18 by the first half of left side pillar 13.

About the structure of left side pillar 13, will describe in detail below.

Left back post 16 also extends downwards from the rear end 34b of rear car roof side rail 34 towards vehicle body rear.

Front end (upper end) 16b of left back the post 16 and rear end 34b of rear car roof side rail 34 links, and the upper end 17b of rear end (lower end) 16a and rear panel 17 (left part 17a) links.Back (rear mounting flange) 19c of left back quarter window 18 is formed by the first half of left back post 16.

And, the left side 23a of tail-gate peristome 23 is formed by left back post 16.

About the structure of left back post 16, will describe in detail below.

Rear end (lower end) 16a of left back post 16 and rear end (lower end) 16a (with reference to Fig. 2) of right back post 16 is connected by rear panel 17.

As shown in Figure 2, rear panel 17 is arranged in the scope of the rear end 16a of left back post 16 and the rear end 16a of right back post 16, extends thus along overall width direction.The bottom 23b of tail-gate peristome 23 is formed by rear panel 17.

About the structure of rear panel 17, will describe in detail below.

Turn back to Fig. 4, the vehicle body rear of on the left side pillar 13 is provided with left back quarter window 18.Left back quarter window 18 forms window frame 19 by top (above mounting flange) 19a, front (front mounting flange) 19b, back (rear mounting flange) 19c and following (lower mounting flange) 19d.

For the ease of understanding structure, under the state of the left outside panel 21 of removing, window frame 19 is described.

Top 19a is formed by the position 33d of central roof siding track 33 and rear car roof side rail 34, and front 19b is formed by the first half of left side pillar 13.Back 19c is formed by the first half of left back post 16, and following 19d is formed by left rear side panel (outer plate panel) 37.Left rear side panel 37 is arranged on rear left wheel cover 36.

As shown in Figure 5, rear corner window glass 28 is configured in (that is, concordant) on the same face relative to left rear side car door 26.Therefore, the window frame 19 of left back quarter window 18 leans on overall width direction arranged outside (simultaneously with reference to Fig. 4) than the frame portion 29 of left rear side peristome 25 with size W1.

Next, the structure of front roof siding track 32, central roof siding track 33 and rear car roof side rail 34 is described in detail based on Fig. 6 ~ Figure 11.

As shown in Figure 6, Figure 7, the front end 33b of central roof siding track 33 is linked with at the rear end 32a of front roof siding track 32.And, the front end 34a of rear car roof side rail 34 is linked with at the rear end 33a of central roof siding track 33.

Front roof siding track 32, central roof siding track 33 and rear car roof side rail 34 have the track exterior part 43 (with reference to Fig. 2) of respective orbit sharing.

As shown in Figure 8, Figure 9, front roof siding track 32 has: track interior part 41 (comprising the front end 45a of central orbit inner component 45) before extending along vehicle body fore-and-aft direction; The front track reinforcement 42 engaged with front track interior part 41 (comprising the front end 45a of central orbit inner component 45) outside car; With the track exterior part 43 (simultaneously with reference to Fig. 2) engaged with front track reinforcement 42 outside car.

At the rear end 32a of front roof siding track 32, the front end 45a of central orbit inner component 45 overlaps with the rear end 41a of front track interior part 41 and engages inside overall width direction.Central orbit inner component 45 is formed by the upper end 51a of left side pillar 13 (quarter line pillaring inner component 51).

In addition, the central orbit reinforcement 46 (specifically, the front end 46a of central orbit reinforcement 46) of central roof siding track 33 overlaps with the rear end 42a of front track reinforcement 42 inside overall width direction.

The 1st collar (collar) 54 of tubular is clamped between the front end 46a of central orbit reinforcement 46 and the front end 45a of central orbit inner component 45.45a side, front end from central track interior part 45 in the 1st collar 54 is interspersed with the 1st bolt 55, and on the 1st threaded portion 55a that the rear end 42a of the past track reinforcement 42 is outstanding, spiral is combined with the 1st nut 56.

Thus, the rear end 42a of front track the reinforcement 42 and front end 46a of central orbit reinforcement 46 is linked by the 1st bolt 55, the 1st nut 56 and the 1st collar 54.

And the rear end 32a of front roof the siding track 32 and front end 33b of central roof siding track 33 is reinforced by the 1st bolt 55, the 1st nut 56 and the 1st collar 54.

Track exterior part 43 engages with front track reinforcement 42 outside overall width direction.

Track exterior part 43 has: the track cover portion 73 of track reinforcement 42 before car outer side covers; From the 1st shroud flange 74 that the overall width direction medial extremity 73a in track cover portion 73 extends; With the 2nd shroud flange 75 that the lower end 73b from track cover portion 73 extends.

As shown in Figure 10, central roof siding track 33 has: central orbit inner component 45 (comprising the front end 81a of rear track interior part 81); The central orbit reinforcement 46 engaged with central orbit inner component 45 (comprising the front end 81a of rear track interior part 81) outside car; With the track exterior part 43 (simultaneously with reference to Fig. 2) engaged with central orbit reinforcement 46 outside car.

Turn back to Fig. 6, Fig. 7, central orbit reinforcement 46 has: the front reinforcement portion 47 of the vehicle front of left side pillar 13; The central strength member portion 48 stood facing each other with the upper end 52a of left side pillar 13 (quarter line pillaring reinforcement 52); With the rear reinforcement portion 49 at the vehicle body rear of left side pillar 13.

Front reinforcement portion 47 is formed in the mode that cross sectional shape is roughly the same with the cross sectional shape (with reference to Fig. 8) of front track reinforcement 42, reinforcement longitudinal wall 47a before having outside overall width direction.

Central strength member portion 48 has central strength member longitudinal wall 48a outside overall width direction, and central strength member longitudinal wall 48a is formed the central strength member bellying 58 (simultaneously with reference to Fig. 9) bloated outside car.

As shown in Figure 10, rear reinforcement portion 49 engages with central orbit inner component 45 (comprising the front end 81a of rear track interior part 81) outside vehicle body.

Central orbit inner component 45 has: the central orbit inner component longitudinal wall 61 being formed in wall portion relative on overall width direction; From the central orbit inner component cross wall 62 that the lower end 61a of central track interior part longitudinal wall 61 extends outside overall width direction; From the 1st central orbit inner component flange 63 (with reference to Fig. 7) that the upper end 61b of central track interior part longitudinal wall 61 extends inside overall width direction; With the 2nd central orbit inner component flange 64 (with reference to Fig. 7) that the overall width direction external side end 62a from central track interior part cross wall 62 extends downwards.

As shown in Fig. 7, Figure 10, rear reinforcement portion 49 has: rear reinforcement longitudinal wall 66, crest line 79 and rear reinforcement crest line 80 inside crest line 78, rear reinforcement outside reinforcement flange 71, rear reinforcement after reinforcement cross wall 68, the 2nd after reinforcement flange 69, the 2nd after reinforcement cross wall 67, the 1st after the 1st.

Rear reinforcement longitudinal wall 66 is arranged with central orbit inner component longitudinal wall 61 in an opposing fashion with separating predetermined distance.After 1st, reinforcement cross wall 67 extends inside overall width direction from the upper end 66a of rear reinforcement longitudinal wall 66.

After 1st, reinforcement flange 69 extends inside overall width direction from the overall width direction medial extremity 67a of the 1st rear reinforcement cross wall 67.After 2nd, reinforcement cross wall 68 extends outside overall width direction from the lower end 66b of rear reinforcement longitudinal wall 66.

After 2nd, reinforcement flange 71 extends downwards from the overall width direction external side end 68a of the 2nd rear reinforcement cross wall 68.

Outside rear reinforcement, crest line 78 is formed in the position that after the 2nd, after reinforcement cross wall 68 and the 2nd, reinforcement flange 71 intersects.The position that after crest line 79 is formed in rear reinforcement longitudinal wall 66 and the 2nd inside rear reinforcement, reinforcement cross wall 68 intersects.

Crest line 79 inside crest line 78 and rear reinforcement outside reinforcement after rear reinforcement portion 49 has, thereby, it is possible to guarantee rigidity, the intensity in rear reinforcement portion 49 by each crest line 78,79.

And reinforcement flange 71 is also reinforced by crest line 78 outside rear reinforcement after the 2nd.

In addition, rear reinforcement crest line 80 is formed by the position of reinforcement cross wall 67 intersection after rear reinforcement longitudinal wall 66 and the 1st.

After rear reinforcement longitudinal wall 66 to the 2, reinforcement flange 71 is arranged by inside overall width direction.That is, the interval after rear reinforcement longitudinal wall 66 and the 2nd between reinforcement flange 71 is set as distance L1.

Track exterior part 43 engages with rear reinforcement portion 49 outside overall width direction.

Specifically, on the 1st central orbit inner component flange 63, with from top in order after the overlapping 1st the state of reinforcement flange 69, the 1st shroud flange 74 by spot welding, each flange 63,69,74 is engaged.

In addition, on the 2nd central orbit inner component flange 64, with outside overall width direction in order after the overlapping 2nd the state of reinforcement flange 71, the 2nd shroud flange 75 by spot welding, each flange 64,71,75 is engaged.

In this condition, between rear reinforcement longitudinal wall 66 and track exterior part 43, space (space) 77 is formed with.

As shown in Figure 6, the front end 34a of rear car roof side rail 34 is linked with at the rear end 33a of central roof siding track 33.

Rear car roof side rail 34 has: the rear track interior part (track interior part) 81 extended along vehicle body fore-and-aft direction; The rear track reinforcement (track reinforcement) 82 engaged with rear track interior part 81 outside car; With the track exterior part 43 (with reference to Fig. 2) engaged with rear track reinforcement 82 outside car.

As shown in Figure 9, Figure 10, at the rear end 33a of central roof siding track 33, the front end 81a of rear track interior part 81 overlaps with the rear end 45b of central orbit inner component 45 and engages outside overall width direction.

In addition, the front end 82a of rear track reinforcement 82 overlaps with the rear end 46b of central orbit reinforcement 46 inside overall width direction.

The 2nd collar 84 of tubular is clamped between the front end 82a of rear track reinforcement 82 and the front end 81a of rear track interior part 81.81a side, front end from rear track interior part 81 in the 2nd collar 84 is interspersed with the 2nd bolt 85, and on the 2nd threaded portion 85a that the rear end 46b from central orbit reinforcement 46 is outstanding, spiral is combined with the 2nd nut 86.

Thus, the rear end 46b of central orbit the reinforcement 46 and front end 82a of rear track reinforcement 82 is linked by the 2nd bolt 85, the 2nd nut 86 and the 2nd collar 84.

And the rear end 33a of central roof the siding track 33 and front end 34a of rear car roof side rail 34 is reinforced by the 2nd bolt 85, the 2nd nut 86 and the 2nd collar 84.

As shown in figure 11, rear track interior part 81 has: the rear track interior part flange (the 2nd track interior part flange) 94 of track interior part flange (the 1st track interior part flange) the 93, the 2nd and rear track interior part the 1st crest line (track interior part the 1st crest line) 95 (simultaneously with reference to Fig. 6) after rear track interior part longitudinal wall (track interior part longitudinal wall) 91, rear track interior part cross wall (track interior part cross wall) the 92, the 1st.

Rear track interior part longitudinal wall 91 is the positions forming wall portion relative on overall width direction.Rear track interior part cross wall 92 extends outside overall width direction from the lower end 91a of rear track interior part longitudinal wall 91.

After 1st, track interior part flange 93 extends inside overall width direction from the upper end 91b of rear track interior part longitudinal wall 91.After 2nd, track interior part flange 94 extends downwards from the overall width direction external side end 92a of rear track interior part cross wall 92.

The position that after rear track interior part the 1st crest line 95 is formed in rear track interior part cross wall the 92 and the 2nd, track interior part flange 94 intersects.This rear track interior part the 1st crest line 95 with rear reinforcement outside crest line 78 (with reference to Fig. 7) continuous print mode formed.

After 2nd, track interior part flange 94 is reinforced by rear track interior part the 1st crest line 95.

Rear track reinforcement 82 has: track reinforcement flange (the 1st track reinforcement flange) the 99, the 2nd rear track reinforcement flange (the 2nd track reinforcement flange) 101, rear track reinforcement the 1st crest line (track reinforcement the 1st crest line) 102 and rear track reinforcement crest line 103 after rear track reinforcement longitudinal wall (track reinforcement longitudinal wall) 97, rear track reinforcement cross wall (track reinforcement cross wall) the 98, the 1st.

Rear track reinforcement longitudinal wall 97 is arranged on outside overall width direction in the mode relative with rear track interior part longitudinal wall 91 with separating predetermined distance.Rear track reinforcement cross wall 98 extends from the upper end 97a of rear track reinforcement longitudinal wall 97 and arranges with separating predetermined distance with rear track interior part cross wall 92 in an opposing fashion inside overall width direction.

After 1st, track reinforcement flange 99 extends inside overall width direction from the overall width direction medial extremity 98a of rear track reinforcement cross wall 98.After 2nd, track reinforcement flange 101 extends outside overall width direction from the lower end 97b of rear track reinforcement longitudinal wall 97.

Rear track reinforcement the 1st crest line 102 is formed in the position that after the 2nd, track reinforcement flange 101 and rear track reinforcement longitudinal wall 97 intersect.This rear track reinforcement the 1st crest line 102 with rear reinforcement inside crest line 79 (with reference to Fig. 7) continuous print mode formed.

After the 1st on track interior part flange 93, with from top in order after the overlapping 1st the state of the 1st shroud flange 74 of track reinforcement flange 99, track exterior part 43 by spot welding, each flange 93,99,74 is engaged.

In addition, in rear track interior part cross wall 92, after the 2nd, track reinforcement flange 101 is bonded on by spot welding and separates the junction surface 92b of predetermined distance inside overall width direction from overall width direction external side end 92a.Thus, closed section is formed by rear track interior part 81 and rear track reinforcement 82.

By engaging the 2nd rear track reinforcement flange 101 on the 92b of junction surface, the distance between track interior part flange 94 after rear track reinforcement longitudinal wall the 97 and the 2nd is set as L2 (with reference to Fig. 7).

And, after the 2nd on track interior part flange 94, by spot welding, each flange 94,75 is engaged with the state of the 2nd shroud flange 75 of overlapping orbitals exterior part 43 outside overall width direction.Thus, rear track interior part 81, rear track reinforcement 82 and track exterior part 43 engage integratedly and form rear car roof side rail 34.

At this, form closed section, thereby, it is possible to guarantee rigidity, the intensity of rear car roof side rail 34 by rear track interior part 81 and rear track reinforcement 82.

And track interior part the 1st crest line 95 and rear track reinforcement the 1st crest line 102 after having in rear car roof side rail 34, thereby, it is possible to guarantee rigidity, the intensity of rear car roof side rail 34 by each 1st crest line 95,102.

In addition, the position that intersected by rear track reinforcement longitudinal wall 97 and rear track reinforcement cross wall 98 of rear track reinforcement crest line 103 and being formed (simultaneously with reference to Fig. 7).

In addition, as shown in Figure 10, track faying flange 105 is formed by the joint of reinforcement flange 71 after the 2nd rear track interior part flange the 94 and the 2nd.

As shown in Figure 10, Figure 11, the top 19a of rear corner window 18 (with reference to Fig. 4) is formed by the 2nd rear track interior part flange 94 and track faying flange 105.

After 2nd, track reinforcement flange 101 engages with the junction surface 92b of rear track interior part cross wall 92, and rear track reinforcement longitudinal wall 97 configures along rear reinforcement longitudinal wall 66.

Distance L2 between track interior part flange 94 after rear track reinforcement longitudinal wall the 97 and the 2nd is set as the distance roughly the same with the distance L1 between rear reinforcement longitudinal wall 66 and the 2nd rear reinforcement flange 71.

Track interior part flange after rear track reinforcement longitudinal wall 97 to the 2 94 is configured by inside overall width direction, thereby, it is possible to guarantee space (space) 77 between track interior part flange 94 after rear track reinforcement longitudinal wall the 97 and the 2nd.

Thus, passing through the 2nd bolt 85, the 2nd nut 86 and the 2nd collar 84 (namely, secure component) fastening rear track reinforcement longitudinal wall 97 and rear track interior part longitudinal wall 91 state under, can be received into from outstanding the 2nd threaded portion 85a of rear reinforcement longitudinal wall 66 and the 2nd nut 86 (secure component) in space 77.

Next, the structure of left back post 16 is described in detail based on Fig. 4, Figure 12.

As shown in Figure 4, front end (upper end) 16b of left back post 16 is linked with at the rear end 34b of rear car roof side rail 34.Front end (upper end) 16b of left back the post 16 and rear end 34b of rear car roof side rail 34 links, and the upper end 17b of rear end (lower end) 16a and rear panel 17 (left part 17a) links.

This left back post 16 has: the post inner component 111 also extended downwards from the rear end 81b of rear track interior part 81 towards vehicle body rear; Engage with post inner component 111 outside car and form the post reinforcement 112 of closed section together with post inner component 111; With the post exterior part 113 (with reference to Fig. 2) engaged with post reinforcement 112 outside car.

As shown in figure 12, post inner component 111 has: post inner component longitudinal wall 116, post inner component cross wall the 117, the 1st post inner component flange the 118, the 2nd post inner component flange 119 and post inner component the 1st crest line 121.

Post inner component longitudinal wall 116 is formed with wall portion relative on overall width direction.Post inner component cross wall 117 extends outside overall width direction from the front end 116a of post inner component longitudinal wall 116.

1st post inner component flange 118 extends from the rear end 116b of post inner component longitudinal wall 116 to vehicle body rear.2nd post inner component flange 119 extends from the overall width direction external side end 117a of post inner component cross wall 117 to vehicle front.

Post inner component the 1st crest line 121 is formed in the position that post inner component cross wall the 117 and the 2nd post inner component flange 119 intersects.This post inner component the 1st crest line 121 is to be formed with rear track interior part the 1st crest line 95 (with reference to Fig. 4) continuous print mode.

Post reinforcement 112 has: post reinforcement longitudinal wall 124, post reinforcement cross wall the 125, the 1st post reinforcement flange the 126, the 2nd post reinforcement flange 127, post reinforcement the 1st crest line 128 and post reinforcement crest line 129.

Post reinforcement longitudinal wall 124 is relative with post inner component longitudinal wall 116, is arranged on separating predetermined distance outside overall width direction.Post reinforcement cross wall 125 extends inside overall width direction from the rear end 124a of post reinforcement longitudinal wall 124, and arranges with separating predetermined distance with post inner component cross wall 117 in an opposing fashion.

1st post reinforcement flange 126 extends from the overall width direction medial extremity 125a of post reinforcement cross wall 125 to vehicle body rear.2nd post reinforcement flange 127 extends outside overall width direction from the front end 124b of post reinforcement longitudinal wall 124.

Post reinforcement the 1st crest line 128 is formed in the position of the 2nd post reinforcement flange 127 and post reinforcement longitudinal wall 124 intersection.This post reinforcement the 1st crest line 128 is to be formed with rear track reinforcement the 1st crest line 102 (with reference to Fig. 4) continuous print mode.

Post exterior part 113 has: from the post cover portion 131 of car outer side covers post reinforcement 112 and post inner component 111; From the 1st shroud flange 132 that the overall width direction medial extremity 131a in post cover portion 131 extends; With the 2nd shroud flange 133 that the overall width direction external side end 131b from post cover portion 131 extends.

On the 1st post inner component flange 118, with outside overall width direction in order the state of overlapping 1st post reinforcement flange the 126, the 1st shroud flange 132 by spot welding, each flange 118,126,132 is engaged.

In addition, in post inner component cross wall 117, the 2nd post reinforcement flange 127 is bonded on by spot welding and separates the junction surface 117b of predetermined distance inside overall width direction from overall width direction external side end 117a.

Thus, left back post 16 forms closed section by post inner component 111 and post reinforcement 112.Owing to forming closed section by post inner component 111 and post reinforcement 112, so rigidity, the intensity of left back post 16 can be guaranteed.

And, left back post 16 has post inner component the 1st crest line 121 and post reinforcement the 1st crest line 128, thereby, it is possible to guarantee rigidity, the intensity of left back post 16 by each 1st crest line 121,128.

In addition, the position that intersected by post reinforcement longitudinal wall 124 and post reinforcement cross wall 125 of post reinforcement crest line 129 and being formed (simultaneously with reference to Fig. 4).This post reinforcement crest line 129 is to be formed with rear track reinforcement crest line 103 (with reference to Fig. 4) continuous print mode.

By engaging the 2nd post reinforcement flange 127 on the 117b of junction surface, post reinforcement longitudinal wall 124 to the 2 post inner component flange 119 is arranged by inside overall width direction.That is, the interval between post reinforcement longitudinal wall the 124 and the 2nd post inner component flange 119 is set as distance L3.

And, on the 2nd post inner component flange 119, by spot welding, each flange 119,133 is engaged with the state of the 2nd shroud flange 133 overlapping outside overall width direction.

Thus, post inner component 111 and post exterior part 113 engage integratedly and form left back post 16.

Back (rear mounting flange) 19c (simultaneously with reference to Fig. 4) of rear corner window 18 is formed by the first half of the 2nd post inner component flange 119.

2nd post inner component flange 119 is reinforced by post inner component the 1st crest line 121.

Next, the structure of rear panel 17 is described in detail based on Fig. 4, Figure 13.

As shown in Fig. 4, Figure 13, be linked with the upper end 17b of rear panel 17 (left part 17a) at rear end (lower end) 16a of left back post 16.

The left part 17a of rear panel 17 has: the 1st crest line (rear panel the 1st crest line) 147 and panel crest line 148 inside the 1st crest line 146, rear panel outside the general face 141 of rear panel, rear panel longitudinal wall 142, rear panel cross wall 143, the 1st rear panel flanges 144, the 2nd rear panel flanges (rear panel flanges) 145, rear panel.

The general face 141 of rear panel is formed by wall portion relative in the longitudinal direction.The rear panel longitudinal wall 142 from behind general overall width direction medial extremity 141a of facial 141 of plate erects to vehicle body rear.

The rear end 142a of rear panel cross wall 143 plate longitudinal wall 142 from behind extends to overall width center side.The overall width direction medial extremity 143a of the 1st rear panel flanges 144 plate cross wall 143 from behind extends to vehicle body rear.

The 2nd rear panel flanges 145 from behind general overall width direction external side end 141b of facial 141 of plate extends to vehicle body rear.2nd rear panel flanges 145 is bonded to by spot welding the rear end 37a of left rear side panel (outer plate panel) 37.

Outside rear panel, the 1st crest line 146 is formed in the position that rear panel general face the 141 and the 2nd rear panel flanges 145 intersects.Outside this rear panel, the 1st crest line 146 is to be formed with post inner component the 1st crest line 121 continuous print mode.

Inside rear panel, the 1st crest line 147 is formed in the position of rear panel longitudinal wall 142 and rear panel general face 141 intersection.Inside this rear panel, the 1st crest line 147 is to be formed with post reinforcement the 1st crest line 128 continuous print mode.

Below, the left part 17a of plate 17 to have outside rear panel the 1st crest line 147 inside the 1st crest line 146 and rear panel, thereby, it is possible to guaranteed rigidity, the intensity of rear panel 17 by each 1st crest line 146,147.

In addition, the position that intersected by rear panel longitudinal wall 142 and rear panel cross wall 143 of panel crest line 148 and being formed.This panel crest line 148 is to be formed with post reinforcement crest line 129 continuous print mode.

Interval between rear panel longitudinal wall 142 and the 2nd rear panel flanges 145 is set as distance L4.Interval between rear panel longitudinal wall 142 and the 2nd rear panel flanges 145 i.e. distance L4 is set as namely distance L1 is large than the interval after the rear reinforcement longitudinal wall 66 shown in Figure 10 and the 2nd between reinforcement flange 71.

Thus, when the rear end 37a of left rear side panel 37 being joined on the 2nd rear panel flanges 145 by spot welding, the electrode 161 (so-called welding gun) of spot welding can be configured in the space 162 between rear panel longitudinal wall 142 and the 2nd rear panel flanges 145.

Thereby, it is possible to easily the rear end 37a of left rear side panel 37 is joined on the 2nd rear panel flanges 145 by spot welding.

As shown in figure 14, the interval after rear reinforcement longitudinal wall 66 and the 2nd between reinforcement flange 71 is set as distance L1.Distance between track interior part flange 94 after rear track reinforcement longitudinal wall the 97 and the 2nd is set as L2.

In addition, the interval between post reinforcement longitudinal wall the 124 and the 2nd post inner component flange 119 is set as distance L3.Interval between rear panel longitudinal wall 142 and the 2nd rear panel flanges 145 is set as distance L4.

Distance L1, distance L2, distance L3, distance L4 are set to along with trending towards rear panel 17 from roof siding track 12 and increase gradually.

And outside crest line 78, rear track interior part the 1st crest line 95, post inner component the 1st crest line 121 and rear panel, each crest line 78,95,121,146 of the 1st crest line 146 is formed in continuous print mode respectively outside rear reinforcement.

In addition, inside rear reinforcement, each crest line 79,102,128,147 of crest line 79, rear track reinforcement the 1st crest line 102, post reinforcement the 1st crest line 128 and rear panel the 1st crest line 147 is formed in continuous print mode respectively.

Like this, increase gradually by being set to apart from L1 ~ L4, the window frame 19 of left back quarter window 18 to be located under the state outside overall width direction (simultaneously with reference to Fig. 5), each crest line 78,95,121,146 and each crest line 79,102,128,147 can be made not have under concavo-convex state continuously.

By having each crest line 78,95,121,146 and each crest line 79,102,128,147 in back structure of vehicle body 10, rigidity, the intensity of back structure of vehicle body 10 can be guaranteed by each crest line 78,95,121,146 and each crest line 79,102,128,147.

In addition, above the vehicle body of each crest line 79,102,128,147 and vehicle body rear be formed with crest line 150.By above the vehicle body of each crest line 79,102,128,147 and vehicle body rear there is crest line 150, rigidity, the intensity of back structure of vehicle body 10 can be improved further.

Crest line 150 is formed by rear reinforcement crest line 80, rear track reinforcement crest line 103, post reinforcement crest line 129 and panel crest line 148.

And increase gradually by being set to apart from L1 ~ L4, each crest line 78,95,121,146 and each crest line 79,102,128,147 are formed as end expansion shape.Thus, each crest line 78,95,121,146 not to have under concavo-convex state continuously, and each crest line 79,102,128,147 not to have under concavo-convex state continuously.

And crest line 150, in the same manner as each crest line 79,102,128,147, not to have under concavo-convex state continuously yet.

Thus, when the left part 17a input of left roof siding track 12, left back post 16 or rear panel 17 has load F1, can reduce and produce the concentrated position of stress because of the load F1 of input, that is, the position becoming displacement starting point because of the load of input can be reduced.

By suppressing the stress caused by the load F1 inputted to be concentrated, in the back structure of vehicle body 10 with rear corner window glass 28, the transmission efficiency of the load F1 of the left part 17a being input to left roof siding track 12, left back post 16 or rear panel 17 can be kept well.

Due to transmitted load F1 well, so rigidity, the intensity of back structure of vehicle body 10 can be guaranteed.

Especially, the junction surface 155 of left roof siding track 12 and left back post 16 be positioned at the upside of tail-gate peristome 23 concave corner part 23c near and near the elbows 15a being positioned at the left rear side of roof panel 15 (with reference to Fig. 2).The concave corner part 23c of upside is formed by the cross part of rear roof rail 14 and left back post 16.

Thus, think that stress easily concentrates on the junction surface 155 of left roof siding track 12 and left back post 16.Therefore, rigidity, the intensity at junction surface 155 is ensure that by rear track reinforcement the 1st crest line 102 and post reinforcement the 1st crest line 128 and rear track interior part the 1st crest line 95 and post inner component the 1st crest line 121.

And, by having crest line 150 (specifically, rear track reinforcement crest line 103 and post reinforcement crest line 129), rigidity, the intensity at junction surface 155 can be improved further.

In addition, the junction surface 156 of left back post 16 and rear panel 17 (left part 17a) is positioned near the concave corner part 23d of the downside of tail-gate peristome 23.Thus, think that stress easily concentrates on the junction surface 156 of left back post 16 and rear panel 17 (left part 17a).Therefore, ensure that rigidity, the intensity at junction surface 156 by the 1st crest line 146 outside the 1st crest line 147 inside post reinforcement the 1st crest line 128 and rear panel and post inner component the 1st crest line 121 and rear panel.

And, by having crest line 150 (specifically, post reinforcement crest line 129 and panel crest line 148), rigidity, the intensity at junction surface 156 can be improved further.

Like this, by improving rigidity, the intensity at junction surface 155, and improving rigidity, the intensity at junction surface 156, body performance (travelling comfort, road-holding property etc.) can be improved.

At this, after the 2nd, reinforcement flange 71 is reinforced by crest line 78 outside rear reinforcement (simultaneously with reference to Figure 10).In addition, the 2nd rear track interior part flange 94 is reinforced by rear track interior part the 1st crest line 95 (simultaneously with reference to Figure 10).After 2nd, after reinforcement flange 71 and the 2nd, track interior part flange 94 is the positions of the top 19a forming left back quarter window 18.

Thereby, it is possible to guarantee rigidity, the intensity of the top 19a of left back quarter window 18.

In addition, the 2nd post inner component flange 119 is reinforced by post inner component the 1st crest line 121 (simultaneously with reference to Figure 12).2nd post inner component flange 119 is the positions of the back 19c forming left back quarter window 18.

Thereby, it is possible to guarantee rigidity, the intensity of the back 19c of left back quarter window 18.

Turn back to Fig. 6, Fig. 7, left side pillar 13 has: the quarter line pillaring inner component 51 extended downwards from central roof side rail 33; Engage with quarter line pillaring inner component 51 outside car and form the quarter line pillaring reinforcement 52 of closed section together with quarter line pillaring inner component 51; With the quarter line pillaring exterior part 53 (with reference to Fig. 2) engaged with quarter line pillaring reinforcement 52 outside car.

Quarter line pillaring reinforcement 52 has: the central protrusion 151 being arranged on upper end 52a central authorities; With the rear protrusion (protrusion) 152 at vehicle body rear being arranged on central protrusion 151.Central authorities' protrusion 151 is with can be outstanding inside overall width direction with the mode that the central strength member bellying 58 in central strength member portion 48 engages.

Rear protrusion 152 is outstanding inside overall width direction in the mode that can engage with the rear reinforcement longitudinal wall 66 in rear reinforcement portion 49.

As shown in Fig. 6, Fig. 9, the front end 52b of the upper end 52a of quarter line pillaring reinforcement 52 engages with reinforcement longitudinal wall 47a before front reinforcement portion 47 outside car, and central protrusion 151 engages with central strength member bellying 58 outside car.And the rear protrusion 152 of the upper end 52a of quarter line pillaring reinforcement 52 engages with rear reinforcement longitudinal wall 66 outside car.

In addition, as shown in Fig. 6, Figure 15, the lower portion 52c of the front end 52b of quarter line pillaring reinforcement 52 engages with reinforcement flange 47b before front reinforcement portion 47 outside car.And the lower portion 52d of rear protrusion 152 engages with reinforcement flange 71 after the 2nd outside car.

At this, after rear reinforcement longitudinal wall 66 to the 2, reinforcement flange 71 is arranged by inside overall width direction.Therefore, protrusion 152 after the upper end 52a of quarter line pillaring reinforcement 52 is formed, can join to rear protrusion 152 on rear reinforcement longitudinal wall 66.

At the upper end 52a of quarter line pillaring reinforcement 52, these three positions of front end 52b, central protrusion 151 and rear protrusion 152 can be joined on central orbit reinforcement 46.

Thereby, it is possible to make the upper end 52a of quarter line pillaring reinforcement 52 (that is, the upper end 13a of quarter line pillaring 13) engage securely with central orbit reinforcement 46, the rigidity of back structure of vehicle body 10, intensity can be guaranteed.

And, as shown in Figure 9, form central orbit inner component 45 by the upper end 51a of quarter line pillaring inner component 51.As shown in Figure 7, quarter line pillaring inner component 51 has: the front curve 51c formed from the front upper part of post inner component main body 51b towards upper end 51a bending; With the rear curve 51d formed from the upper back of post inner component main body 51b towards upper end 51a bending.

Thereby, it is possible to remove concave corner part from the connecting part of post inner component main body 51b and upper end 51a, stress can be suppressed to concentrate on connecting part.Thereby, it is possible to guarantee rigidity, the intensity of back structure of vehicle body 10 further well.

In addition, back structure of vehicle body of the present invention is not limited to above-described embodiment, can suitably change, improvement etc.

Such as, the back structure of vehicle body illustrated in the above-described embodiments, the roof siding track of left and right, quarter line pillaring, the rear pillar of left and right, rear panel, rear corner window, rear track interior part, rear track reinforcement, rear track interior part longitudinal wall, rear track interior part cross wall, track interior part flange after 1st, track interior part flange after 2nd, rear track interior part the 1st crest line, rear track reinforcement longitudinal wall, rear track reinforcement cross wall, track reinforcement flange after 2nd, rear track reinforcement the 1st crest line, post inner component, post reinforcement, post inner component longitudinal wall, post inner component cross wall, 1st post inner component flange, 2nd post inner component flange, post inner component the 1st crest line, post reinforcement longitudinal wall, post reinforcement cross wall, 1st post reinforcement flange, 2nd post reinforcement flange, post reinforcement the 1st crest line, rear panel is generally facial, rear panel longitudinal wall, rear panel cross wall, 2nd rear panel flanges, inside rear panel, the shape of the 1st crest line and rear protrusion etc. and formation are not limited to illustration, can suitably change.

Industrial applicibility

The present invention is applicable to have roof siding track and extends along the longitudinal direction and the automobile of back structure of vehicle body that extends to the back lower place from the rear end of roof siding track of rear pillar.

Claims

1. a back structure of vehicle body, has:

The roof siding track of left and right, it extends along vehicle body fore-and-aft direction at the left and right sides of body top section;

The rear pillar of left and right, it also extends downwards from the rear end of described roof siding track towards vehicle body rear;

Rear corner window, it forms top by described roof siding track, and forms back by described rear pillar,

The feature of this back structure of vehicle body is,

Described roof siding track has:

Along the track interior part that vehicle body fore-and-aft direction extends; With

Engage with this track interior part outside car and form the track reinforcement of closed section together with described track interior part,

Described track interior part has:

Form the track interior part longitudinal wall of wall portion relative on overall width direction;

The track interior part cross wall extended outside overall width direction from the lower end of this track interior part longitudinal wall;

The 1st track interior part flange extended inside overall width direction from the upper end of described track interior part longitudinal wall; With

Extend downwards from the overall width direction external side end of described track interior part cross wall and form the 2nd track interior part flange of the described top of described rear corner window,

Described track reinforcement has:

And the track reinforcement longitudinal wall that with separating predetermined distance be arranged on overall width direction outside relative with described track interior part longitudinal wall;

Extend inside overall width direction from the upper end of this track reinforcement longitudinal wall and separate the relative track reinforcement cross wall in predetermined distance ground with described track interior part cross wall;

Extend and the 1st track reinforcement flange engaged with described 1st track interior part flange from the overall width direction medial extremity of this track reinforcement cross wall;

Extend outside overall width direction from the lower end of described track reinforcement longitudinal wall and the 2nd track reinforcement flange engaged with described track interior part cross wall; With

Be formed in track reinforcement the 1st crest line at the position of the 2nd track reinforcement flange and described track reinforcement longitudinal wall intersection,

Described rear pillar has:

The post inner component also extended downwards from the rear end of described track interior part towards vehicle body rear; With

Engage with this post inner component outside car and form the post reinforcement of closed section together with described post inner component,

Described post inner component has:

Form the post inner component longitudinal wall of wall portion relative on overall width direction;

The post inner component cross wall extended outside overall width direction from the front end of this post inner component longitudinal wall;

The 1st post inner component flange extended to vehicle body rear from the rear end of described post inner component longitudinal wall; With

Extend from the overall width direction external side end of described post inner component cross wall to vehicle front and form the 2nd post inner component flange of the described back of described rear corner window,

Described post reinforcement has:

And the post reinforcement longitudinal wall that with separating predetermined distance be arranged on overall width direction outside relative with described post inner component longitudinal wall;

Extend inside overall width direction from the rear end of this post reinforcement longitudinal wall and separate the relative post reinforcement cross wall in predetermined distance ground with described post inner component cross wall;

Extend and the 1st post reinforcement flange engaged with described 1st post inner component flange from the overall width direction medial extremity of this post reinforcement cross wall;

Extend outside overall width direction from the front end of described post reinforcement longitudinal wall and the 2nd post reinforcement flange engaged with described post inner component cross wall; With

Be formed in post reinforcement the 1st crest line at the position of the 2nd post reinforcement flange and described post reinforcement longitudinal wall intersection,

This post reinforcement the 1st crest line and described track reinforcement the 1st crest line continuous.

2. back structure of vehicle body as claimed in claim 1, is characterized in that,

Rear end in order to the rear pillar by described left and right is joined to one another and has the rear panel extended along overall width direction,

Described rear panel has:

Rear panel relative is in the longitudinal direction generally facial;

From the rear panel longitudinal wall that the general face of this rear panel erects to vehicle body rear;

The rear panel cross wall extended from the rear end of this rear panel longitudinal wall to overall width center side; With

Be formed in rear panel the 1st crest line at the position of described rear panel longitudinal wall and the general face intersection of described rear panel,

This rear panel the 1st crest line and described post reinforcement the 1st crest line continuous.

3. back structure of vehicle body as claimed in claim 1 or 2, is characterized in that,

Described track interior part has track interior part the 1st crest line at the position being formed in described track interior part cross wall and described 2nd track interior part flange intersection,

Described post inner component has post inner component the 1st crest line at the position being formed in described post inner component cross wall and described 2nd post inner component flange intersection,

This post inner component the 1st crest line and described track interior part the 1st crest line continuous.

4. back structure of vehicle body as claimed in claim 1, is characterized in that,

Have and be positioned at vehicle front and the quarter line pillaring extended from the length direction midway of described roof siding track downwards than described rear pillar,

Described quarter line pillaring have be arranged on upper end and inside overall width direction outstanding and protrusion that is that engage with described track reinforcement longitudinal wall.

5. back structure of vehicle body as claimed in claim 2, is characterized in that,

Described rear panel has the rear panel flanges extended to vehicle body rear from the overall width direction external side end of the general face of described rear panel,

Distance between described rear panel longitudinal wall and described rear panel flanges is greater than the distance between described track reinforcement longitudinal wall and described 2nd track interior part flange.

6. back structure of vehicle body as claimed in claim 5, is characterized in that,

The distance between distance, described rear panel longitudinal wall and described rear panel flanges between distance, described post reinforcement longitudinal wall and described 2nd post inner component flange between described track reinforcement longitudinal wall and described 2nd track interior part flange increases gradually along with trending towards described rear panel from described roof siding track.

7. a back structure of vehicle body, has:

The rear pillar of left and right, it also extends downwards from the left and right sides of body top section towards vehicle body rear;

Rear corner window, it forms back by described rear pillar; With