JP5515809B2 - Rear body structure of the vehicle - Google Patents

Description

  The present invention relates to a wheel house, a wheel house reinforcing member provided over a vehicle body side wall above the wheel house, a rear seat disposed in front of the wheel house reinforcing member, and a retractor of a seat belt device provided behind the rear seat. The present invention relates to a rear body structure of a vehicle.

Generally, a retractor for a rear seat has a configuration built in the rear seat and a configuration attached to a side wall of a vehicle body such as a trunk side.
In the configuration in which the retractor is built in the rear seat, there is a problem that the weight of the seat itself increases, but there is no need to attach the retractor to the side wall of the vehicle body, so that unevenness due to the attachment of the retractor may be formed on the side wall of the vehicle body. In addition, there is an advantage that the convenience of the cargo space is improved.

On the other hand, in the configuration in which the retractor is attached to the side wall of the vehicle body, there is no concern that the weight of the rear seat itself increases, but there is a problem that unevenness occurs in the side wall of the vehicle body and the usability of the luggage compartment deteriorates.
Further, in this case, a large load for occupant protection is applied to the retractor described above. Therefore, it is necessary to increase the rigidity of the vehicle body side wall and attach the retractor to the highly rigid portion.

  Therefore, in the past, a reinforcement panel was added between the frame side outer and the frame side inner constituting the side wall of the vehicle body, and the retractor was attached to the portion whose rigidity was enhanced by this reinforcement panel. There was a problem that caused an increase.

Incidentally, in Patent Document 1, as shown in FIG. 10, a wheel house 92 bulging from the rear inner panel 91 to the vehicle interior side is provided, and a suspension housing gusset 93 is joined and fixed to the upper surface of the wheel house 92. On the other hand, there is disclosed a structure in which an anchor plate 94 is joined to the vehicle outer side surface of the rear inner panel 91 described above, and a retractor 95 of a seat belt device is attached to the overlapping portion where the anchor plate 94 and the rear inner panel 91 are superposed. Yes.
In FIG. 10, 96 is a rear pillar reinforcement, and in the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inside of the vehicle, and arrow OUT indicates the outside of the vehicle. Show how.

  According to the conventional structure disclosed in Patent Document 1, since the retractor 95 is provided at the overlap portion between the rear inner panel 91 and the anchor plate 94, there is an advantage that the mounting rigidity of the retractor 95 can be improved. The anchor plate 94 and the rear pillar reinforcement 96 have a problem of increasing the weight.

JP 2005-170228 A

  Therefore, the present invention provides a wheel house reinforcing member provided over the wheel house and the vehicle body side wall above the wheel house, and by attaching a retractor to the wheel house reinforcing member, the wheel house reinforcing member is effectively used to increase the weight. Provided is a rear body structure of a vehicle that can secure a retractor support rigidity while suppressing it, and can minimize a reduction in cargo space by arranging the retractor in a space-efficient part. With the goal.

A rear body structure of a vehicle according to the present invention includes a floor panel that forms a floor surface of a vehicle body, a pair of wheel houses that are formed to bulge from a side wall of a vehicle body toward a vehicle interior side, and that accommodate a rear wheel; A rear portion of a vehicle including a wheel house reinforcing member provided over a vehicle body side wall above the vehicle body, a rear seat disposed in front of the wheel house reinforcing member, and a retractor of a seat belt device provided behind the rear seat. The seat belt device includes a retractor that winds up a webbing and a shoulder anchor that guides an intermediate portion of the webbing, and the shoulder anchor is provided on a side wall of the vehicle body above an upper end of a seat back of a rear seat. The retractor is a top deck of the wheel house formed on the wheel house reinforcing member. An upper mounting piece that is attached to a vertical wall portion that extends upward in the vehicle width direction, an outer piece that supports one side of the retractor body, and the other side of the retractor body that extends forward from the inner end of the upper mounting piece A support bracket having an inner piece for supporting the wheel house, and the inner piece extends to a lower portion of the extension portion of the wheel house reinforcing portion extending from the vehicle interior side surface of the wheel house to the floor panel .

According to the above configuration, since the wheel house reinforcing member is provided over the wheel house and the vehicle body side wall above the wheel house, and the retractor is attached to the wheel house reinforcing member, the wheel house reinforcing member is effectively used to increase the weight. It is possible to mount the retractor while ensuring the support rigidity while suppressing the above-mentioned.
As a result, the mounting rigidity and support rigidity of the retractor can be ensured, and the reduction of the cargo space can be minimized by disposing the retractor in a highly space-efficient portion.

Further, the wheel house reinforcing member is provided with a vertical wall portion extending in the vehicle width direction above the top deck of the wheel house, and the retractor is attached to the vertical wall portion via a support bracket. Thus, by providing the vertical wall portion as described above, the rigidity of the wheel house can be improved, and the retractor can also be supported with sufficient rigidity.
Moreover, by providing the vertical wall portion extending in the vehicle width direction, the mounting structure is strong against the direction of the force urged by the retractor (the vehicle forward direction in which the occupant moves).

Further, since the shoulder anchor is provided on the side wall of the vehicle body above the upper end of the seat back of the rear seat, even if the retractor is disposed on the wheel house reinforcing member, the upper end of the seat seat of the rear seat is secured. By providing it on the upper side wall of the vehicle body, it is possible to ensure proper take-out of the webbing.

In addition, the wheel house reinforcing member includes an extension portion extending from the vehicle interior side surface of the wheel house to the floor panel, and a support bracket that connects the lower portion of the extension portion and the retractor body is provided. The retractor body can be connected to a member (lower part of the extension) located below the retractor body via the support bracket, and a support structure that is strong against a pulling force on the retractor body is obtained.

In one embodiment of the present invention, the retractor is disposed in front of the wheel house reinforcing member and behind the rear seat.
According to the above configuration, since the retractor is disposed in front of the wheel house reinforcing member and behind the rear seat, it can be disposed in a highly space-efficient part, and the user-friendly luggage room in which the reduction of the luggage space is suppressed. Ru can provide.

In one embodiment of the present invention, the seat belt device includes a shoulder anchor that guides an intermediate portion of a webbing, and the retractor is attached to the wheel house reinforcing member so that a feeding direction of the webbing faces the shoulder anchor. It is what was done.
According to the above arrangement, since the feeding direction of the webbing is oriented shoulder anchor, can be prevented from flexes is the webbing during withdrawal of the webbing, Ru can ensure good extraction of the webbing.

In one embodiment of the present invention, a trim member provided along the wheel house reinforcing member is provided on the vehicle interior side of the wheel house, and the trim member extends along the side wall of the vehicle body above the wheel house reinforcing member. It is provided.
According to the said structure, since the trim member is provided along the vehicle body side wall above the wheel house reinforcement member, the unevenness | corrugation of a vehicle body side wall can be reduced and the usability of a luggage compartment can be improved.

  According to the present invention, since the wheel house reinforcing member provided over the wheel house and the vehicle body side wall above the wheel house is provided and the retractor is attached to the wheel house reinforcing member, the weight increase can be achieved by effectively using the wheel house reinforcing member. Retractor support rigidity can be ensured while suppressing, and by arranging the retractor in a highly space-efficient part, it is possible to minimize the reduction of the cargo space.

Side view showing a reference example of the rear body structure of a vehicle 1 is a plan view of the main part of FIG. 1 is a cross-sectional view taken along line AA in FIG. Perspective view showing retractor mounting structure Plan view showing another reference example of the rear body structure of the vehicle Side view showing still another reference example of vehicle rear body structure BB sectional view of FIG. FIG. 7 is an enlarged view of the shoulder anchor mounting portion of FIG. Perspective view showing an actual施例the rear body structure of a vehicle Plan view showing the rear body structure of a conventional vehicle

With the aim of securing the support rigidity by effectively using the wheel house reinforcing member while suppressing weight increase, the floor panel that forms the floor of the vehicle body and the vehicle body side wall bulges toward the vehicle interior side A pair of wheel houses formed to accommodate the rear wheels, a wheel house reinforcing member provided over the wheel house and a vehicle body side wall above the wheel house, a rear seat disposed in front of the wheel house reinforcing member, and the rear seat In the rear body structure of a vehicle provided with a retractor for a seat belt device provided further rearward, the seat belt device includes a retractor that winds up a webbing, and a shoulder anchor that guides an intermediate part of the webbing, The shoulder anchor is provided on the side wall of the vehicle body above the upper end of the seat back of the rear seat. A top mounting piece that is attached to a vertical wall portion that extends in the vehicle width direction above the top deck of the wheel house formed on the wheel house reinforcing member, and an outer piece that supports one of the retractor bodies. A support bracket having an inner piece that extends forward from an inner end of the upper mounting piece and supports the other of the retractor body, and the inner piece extends from a vehicle interior side surface of the wheel house to a floor panel. This is realized by a configuration that extends to the lower part of the extension part and is connected .

[ Reference Example 1]
Prior to the description of the real施例of the invention, first it is described in detail in Reference Example comprising its premise.
1 is a side view showing a rear body structure of a vehicle, FIG. 2 is a plan view of the main part of FIG. 1, FIG. 3 is a sectional view (rear view) taken along the line AA in FIG. It is a perspective view.

  In FIG. 1, the floor panel 1 which forms the floor surface of a vehicle body is provided. The floor panel 1 includes a seat pan 1A, a slant-shaped kick-up portion 1B connected to the seat pan 1A in a front-rear and rear-high shape, and a luggage compartment extending rearward from the upper end of the kick-up portion 1B. A floor 1C and a spare tire pan 1D that is integrally or integrally lowered at the center of the cargo floor 1C in the vehicle width direction are provided.

A rear end panel 2 rising upward by a predetermined amount is joined and fixed to the rear end of the floor panel 1 described above, and a rear end member 3 extending in the vehicle width direction is joined and fixed to the rear side of the rear end panel 2. A rear end closed section 4 extending in the vehicle width direction is formed between the rear end member 3 and the above-mentioned rear end panel 2 so as to improve the rear vehicle body rigidity in the lower part.
A rear bumper 5 made of a synthetic resin is disposed further behind the above-described rear end member 3 via a bumper reinforcement composed of a crash can and a bumper beam (not shown).

  On the other hand, a roof panel 8 that covers the vehicle compartment 6 and the cargo compartment 7 from above is provided, and a roof reinforcement 9 and a rear header 10 are joined and fixed to the inside of the rear end portion of the roof panel 8, and the roof reinforcement 9 A header closed section 11 extending in the vehicle width direction is formed between the rear header 10 and the rear header 10 so as to improve the rear vehicle body rigidity in the upper part. Is covered with a top sealing 12.

A back door 14 (which agrees with a lift gate) is supported via a back door hinge 13 so as to be openable and closable at a stepped portion at the rear end of the roof panel 8 corresponding to the rear header 10 described above.
The back door 14 includes a back door inner panel 15, a back door outer panel 16, a back door window 17, and a latch (not shown) that engages with a striker on the body side. The opening 18 is opened and closed.

A cross member 19 extending in the vehicle width direction is joined and fixed to the upper portion of the seat pan 1A in the floor panel 1 described above, and a closed cross section 20 extending in the vehicle width direction is provided between the cross member 19 and the floor panel 1. It is configured to improve the rigidity of the lower vehicle body.
Further, a rear cross member 21 extending in the vehicle width direction is joined and fixed to the upper portion of the kick-up portion 1B of the floor panel 1 described above, and between the rear cross member 21 and the floor panel 1 in the vehicle width direction. An extending closed section 22 is formed to improve the lower vehicle body rigidity.

Similarly, a rear cross member lower 23 extending in the vehicle width direction is joined and fixed to the lower portion of the kick-up portion 1B of the floor panel 1 so as to face the rear cross member 21 in the vertical direction. A closed cross section 24 extending in the vehicle width direction is also formed between the member lower 23 and the floor panel 1 so as to improve the lower vehicle body rigidity.
A rear seat 25 is disposed above the seat pan 1A in the floor panel 1 described above.

  The rear seat 25 includes a seat cushion 25C that forms a seating surface for the rear seat occupant, a seat back 25B that forms a backrest surface for the rear seat occupant, and a headrest 25H that holds the head of the rear seat occupant. While being supported by the floor panel 1 via a plurality of brackets 26 and 27, the rear seat 25 is disposed in front of a wheel house reinforcing member 37 described later.

As shown in FIGS. 1, 2, and 3, the left and right sides of the floor panel 1 are provided with a rear side frame upper 29 and a rear side frame lower 30 that extend from the rear part of the side sill 28 to the rear end panel 2 in the vehicle front-rear direction. ing.
The rear side frame upper 29 and the rear side frame lower 30 are joined and fixed to each other. Between the rear side frame upper 29 and the rear side frame lower 30, a rear side closed section 31 extending in the front-rear direction of the vehicle (see FIG. 3). ) Is formed, and the lower vehicle body rigidity at the side is improved.

  The joint portion 32 on the inner side in the vehicle width direction of the rear side frame upper 29 and the rear side frame lower 30 is joined and fixed to the floor panel 1, and the joint portion 33 on the outer side in the vehicle width direction of the rear side frame upper 29 and the rear side frame lower 30 is It is joined and fixed to a cab side panel 34 and a wheel house inner 36 as vehicle body side walls, which will be described later.

As shown in FIGS. 2 and 3, a cab side panel 34 constituting the vehicle body side wall is provided, and a predetermined portion (a portion corresponding to the rear wheel) of the cab side panel 34 bulges outward in the vehicle width direction. A formed wheel house outer 35 is provided.
A wheel house inner 36 is formed so as to bulge from the cab side panel 34 toward the vehicle interior side so as to coincide with the position of the wheel house outer 35.

In the reference example 1 , the cab side panel 34 and the wheel house outer 35 are integrally formed, and the cab side panel 34 and the wheel house inner 36 are formed as separate members, but instead of this configuration, A structure in which the cab side panel and the wheel house inner are integrally formed and the cab side panel and the wheel house outer are formed as separate members may be employed.
The wheel house outer 35 and the wheel house inner 36 accommodate rear wheels (not shown). As shown in FIG. 2, the wheel house outer 35 and the wheel house inner 36 are provided in a pair on the left and right.

  As shown in FIGS. 1 to 4, the wheel house inner 36 includes a wheel house reinforcing member 37 (hereinafter simply referred to as a wheel house gusset) provided over the wheel house inner 36 and the cab side panel 34 above the wheel house inner 36. I have.

  As shown in FIG. 4, the wheel house gusset 37 includes an upper gusset 38 provided over the top deck of the wheel house inner 36 and the cab side panel 34 above the wheel house inner 36, and the floor panel 1 from the vehicle interior side surface of the wheel house inner 36. Specifically, the front and rear extensions 39 and 40 extending from the side of the vehicle interior of the wheel house inner 36 to the rear side frame upper 29 and the rear cross member 21 are provided.

  As shown in FIG. 4, the upper gusset 38 includes front and rear vertical wall portions 38 </ b> A and 38 </ b> B that extend in the vehicle width direction above the top deck of the wheel house inner 36, and these front and rear vertical wall portions. 38A, 38B connecting portion 38C in the front-rear direction, joint flange portion 38D for spot welding fixing the upper gusset 38 to the cab side panel 34, and spot welding the upper gusset 38 to the top deck portion of the wheel house inner 36 A joint flange portion 38E for fixing is integrally formed.

The aforementioned extension 39 on the front side is an extension main body 39A extending in the vehicle vertical direction by connecting a front piece, an inner piece, and a rear piece so that the cross-sectional shape viewed in the horizontal direction becomes a hat cross-sectional shape. And a plurality of joint flange portions 39B formed integrally with the extension portion main body 39A.
Then, the above-described plurality of joint flange portions 39B are spot welded to the inner surface of the wheel house inner 36, the rear side frame upper 29, and the rear cross member 21, so that each of these elements 36, 29, 21 is fixed. A closed cross section extending substantially in the vertical direction of the vehicle is formed between the main body 39A and the extension portion main body 39A.

Similarly, the extension 40 on the rear side described above extends in a substantially vertical direction of the vehicle by connecting a front piece, an inner piece, and a rear piece in a row so that a planar cross-sectional shape in the horizontal direction becomes a hat cross-sectional shape. 40 A of extension part main bodies and the some joint flange part 40B integrally formed in this extension part main body 40A are provided.
The plurality of joint flange portions 40B are fixed by spot welding to the inner surface of the wheel house inner 36 and the rear side frame upper 29, so that the space between these elements 36 and 29 and the extension portion main body 40A can be reduced. In addition, a closed cross section extending substantially in the vertical direction of the vehicle is formed.

  Here, the front extension 39 and the rear extension 40 are disposed apart from each other in the front-rear direction of the vehicle. Further, the respective closed sections formed in the front and rear extension portions 39 and 40 are formed so as to gradually increase from the upper part to the lower part.

  The wheel house inner 36 is reinforced by the wheel house gusset 37 including the upper gusset 38, the front extension 39, and the rear extension 40, and the wheel house inner caused by the input from the rear suspension. It is comprised so that 36 may fall down.

As shown in FIGS. 1 and 2, the above-described rear seat 25 is disposed in front of the vehicle with respect to the wheel house gusset 37 as a wheel house reinforcing member, and a seat belt device 50 is disposed behind the rear seat 25. The retractor 51 is provided.
The seat belt device 50 described above includes a webbing 52 (so-called seat belt), a shoulder anchor 53 that guides an intermediate portion of the webbing 52, and the retractor 51.

  The retractor 51 includes a retractor body 54 that winds up the webbing 52 of the seat belt device 50 so that the webbing 52 can be unwound, and a support bracket 55 that supports the retractor body 54. In the drawing, the support bracket 55 has an L shape in plan view, but the support bracket 55 may be formed in a U shape in plan view.

  As shown in FIGS. 1 to 4, the retractor 51 described above is disposed in front of the wheel gusset 37 and behind the rear seat 25. Specifically, the support bracket 55 constituting the retractor 51 is directly attached to the front surface of the vertical wall portion 38A on the front side of the upper gusset 38 using attachment members such as bolts and nuts.

  As shown in FIGS. 3 and 4, the above-described retractor 51 is directly attached to the front side of the vertical wall 38A on the front side in the vehicle width direction as much as possible and does not affect the cargo space. .

As shown in FIGS. 1 to 3, the shoulder anchor 53 that guides the intermediate portion of the webbing 52 is fixed to the vehicle outer upper end portion of the seat back 25 </ b> B of the rear seat 25 in the first reference example . as shown in 3, the webbing 52 is unwound from the retractor body 54, once, after guided by the shoulder anchor 53, and configured to direct the front side of the seat back 25B.
The tip of the webbing 52 is configured to be engaged with an anchor plate (not shown) provided on the floor panel 1 side.

Incidentally, as shown in FIG. 3, a cab side trim 60 as a trim member provided along the wheel house gusset 37 is provided on the vehicle interior side of the wheel house inner 36. As shown in FIG. The cab side trim 60 is provided with an upper portion 60a above the wheel house gusset 37 along the side surface of the cab side panel 34 serving as a vehicle body side wall.
In the figure, reference numeral 70 denotes a rear door opening serving as a passenger seat for a rear seat passenger, 71 a quarter pillar, and 72 a quarter window. In the figure, arrow F indicates the front of the vehicle, arrow IN indicates the inside of the vehicle, and arrow OUT indicates the outside of the vehicle.

As described above, the rear vehicle body structure of the vehicle of Reference Example 1 shown in FIG. 1 to FIG. A pair of wheel houses (see the wheel house inner 36) that are formed to bulge out toward the rear wheel, the wheel house (see the wheel house inner 36), and a vehicle body side wall (see the cab side panel 34) above the wheel house. Wheel house reinforcing member (see wheel house gusset 37), a rear seat 25 disposed in front of the wheel house reinforcing member (wheel house gusset 37), and a seat belt device 50 provided behind the rear seat 25. And a retractor 51 of the vehicle, wherein the retractor 51 is a wheel house reinforcing portion. Those attached to (a wheel see House gussets 37) (see FIG. 1, FIG. 3).

According to this configuration, the wheel house reinforcement member (see the wheel house gusset 37) is provided over the wheel house (see the wheel house inner 36) and the vehicle body side wall (see the cab side panel 34) above the wheel house, and the retractor 51 is provided with the wheel house reinforcement. Since it is attached to the member (wheel house gusset 37), the retractor 51 can be attached while effectively using the wheel house reinforcing member (wheel house gusset 37) while suppressing an increase in weight.
As a result, it is possible to ensure the support rigidity of the retractor 51 while suppressing an increase in weight, and it is possible to achieve both the ensurement of the retractor support rigidity and fuel improvement.

The retractor 51 is disposed in front of the wheel house reinforcing member (wheel house gusset 37) and behind the rear seat 25 (see FIG. 1).
According to this configuration, since the retractor 51 is disposed in front of the wheel house reinforcing member (wheel house gusset 37) and behind the rear seat 25, the retractor can be disposed in a highly space-efficient portion with less unevenness. An easy-to-use luggage room 7 can be provided.

Further, the wheel house reinforcing member (see the wheel house gusset 37) is provided with a vertical wall portion 38A extending in the vehicle width direction above the top deck of the wheel house (see the wheel house inner 36), The retractor 51 is attached to the vertical wall portion 38A (see FIG. 4).
According to this configuration, the rigidity of the wheel house (see the wheel house inner 36) can be improved by providing the vertical wall portion 38A, and the retractor 51 can also be supported with sufficient rigidity.
In addition, by providing the vertical wall portion 38A extending in the vehicle width direction, the mounting structure is strong with respect to the direction of the force urged by the retractor 51 (particularly the vehicle front direction in which the occupant moves when the vehicle collides).

Moreover, the retractor 51 includes a retractor body 54 that winds up the webbing 52 of the seat belt device 50, and a support bracket 55 that supports the retractor 54 body, and the support bracket 55 is the wheel house reinforcing member (wheel house gusset). 37, and in detail, refer to the vertical wall 38A) (see FIGS. 1 and 4).
According to this configuration, since the retractor 51 is directly attached to the wheel house reinforcing member (wheel house gusset 37), attachment in a state in which an increase in weight is suppressed is possible.

In addition, a trim member (see cab side trim 60) provided along a wheel house reinforcing member (see wheel house gusset 37) is provided on the vehicle interior side of the wheel house (see wheel house inner 36). The member (cab side trim 60) is provided along the side wall of the vehicle body (see the cab side panel 34) above the wheel house reinforcing member (wheel house gusset 37) (see the upper portion 60a) (see FIG. 3). ).
According to this configuration, the trim member (cab side trim 60) is provided along the vehicle body side wall (cab side panel 34) above the wheel house reinforcing member (wheel house gusset 37). The unevenness of the side panel 34) can be reduced, and the usability of the luggage compartment 7 can be improved.

[ Reference Example 2]
FIG. 5 is a plan view of the main part showing a reference example 2 of the rear body structure of the vehicle.
In this reference example 2 , the front vertical wall portion 38A of the upper gusset 38 of the wheel house gusset 37 is formed into an inclined structure such that the outer side in the vehicle width direction is positioned forward and the inner side in the vehicle width direction is positioned rearward. The support bracket 55 of the retractor 51 is directly attached to the front surface of the inclined vertical wall portion 38A using attachment members such as bolts and nuts.
As described above, when the retractor 51 is directly fixed to the front surface of the vertical wall portion 38 </ b> A having the inclined structure, the retractor 51 is arranged so that the feeding direction of the webbing 52 faces the shoulder anchor 53.

In the reference example 2 , not only the retractor 51 described above but also a shoulder anchor 53 on the seat back 25B is disposed so as to be substantially flat with the webbing feeding direction of the retractor 51.
That is, the shoulder anchor 53 attached to the upper end of the seatback 25B is inclined such that the outer side in the vehicle width direction is located forward and the inner side in the vehicle width direction is located rearward.

Thus, in the reference example 2 shown in FIG. 5, the seat belt device 50 includes the shoulder anchor 53 that guides the intermediate portion of the webbing 52, and the retractor 51 is configured such that the feeding direction of the webbing 52 is the shoulder anchor. 53 is attached to the wheel house reinforcing member (see wheel house gusset 37) so as to face 53 (see FIG. 5).
According to this configuration, since the feeding direction of the webbing 52 faces the shoulder anchor 53, it is possible to prevent the webbing 52 from being bent when the webbing 52 is pulled out, and it is possible to ensure a good takeout property of the webbing 52. .

In Reference Example 2 , the vertical wall portion 38A is inclined and arranged so that the webbing feed-out direction faces the shoulder anchor 53. However, when viewed from the front, the webbing feed-out direction is also the shoulder anchor 53. The vehicle may be tilted inward in the vehicle width direction with the vehicle longitudinal direction as the axis.

Also in this reference example 2 shown in FIG. 5, since the other configurations, operations, and effects are the same as in the previous reference example 1, in FIG. Detailed description thereof will be omitted.

[ Reference Example 3]
6, FIG. 7 and FIG. 8 show Reference Example 3 of the rear body structure of the vehicle, FIG. 6 is a side view, FIG. 7 is a cross-sectional view taken along the line B-B in FIG. It is an enlarged view of an attachment part.

As shown in FIGS. 6, 7, and 8, in the third reference example , the shoulder anchor 53 is provided on the quarter pillar 71 as the vehicle body side wall above the upper end of the seat back 25 </ b> B of the rear seat 25.

As shown in FIG. 7 which is a sectional view taken along line B-B in FIG. 6, a pillar reinforcement 73 is provided on the outer side of the above-described quarter pillar 71 so as to overlap. The cab side outer 74 constituting the vehicle body outer plate is joined and fixed between the upper end portion 73a of the vehicle and the lower part 35a on the vehicle outer side of the wheel house outer 35 described above.
Moreover, the concrete attachment structure of the above-mentioned shoulder anchor 53 is as showing in FIG.

  That is, in the portion where the quarter pillar 71, the pillar reinforcement 73, and the cab side trim 60 are overlapped in the vehicle width direction, an opening 71b for inserting the bolt is formed in the quarter pillar 71, and the pillar reinforcement 73 also has a bolt. An opening 73b for insertion is formed, and openings 60b and 53b for bolt insertion are also formed in the cab side trim 60 and the shoulder anchor 53, respectively.

  Further, on the vehicle outer side surface of the pillar reinforcement 73, a nut anchor 75 is preliminarily welded and fixed, and a shoulder anchor bolt 76 having flanges 76a, 76b, and 76c is provided, and the shoulder anchor bolt 76 is provided in each of the openings 53b and 60b. , 71b and 73b, the quarter pillar 71 and the pillar reinforcement 73 are fastened between the nut 75 and the flange 76a, and the cab side trim 60 is held between the flanges 76a and 76b. The shoulder anchor 53 is held between the flanges 76b and 76c.

Further, the above-mentioned shoulder anchor 53 is provided with a webbing insertion port 53c through which the webbing 52 is inserted and guided. As shown in FIGS. 6, 7, and 8, the webbing 52 fed out from the retractor 51 is disposed inside the cab side trim 60. After being guided upward along the side surface, the intermediate portion of the webbing 52 is passed through the webbing insertion port 53c of the shoulder anchor 53, the intermediate portion of the webbing 52 is guided by the shoulder anchor 53, and the webbing insertion port 53c further guides the rear seat 25. The webbing 52 is led out to the seat back 25B side.
The webbing 52 is provided with an intermediate tongue 77 as a moving tongue (see FIG. 7).

As described above, in the reference example 3 shown in FIGS. 6 to 8, the shoulder anchor 53 is provided on the vehicle body side wall (see the quarter pillar 71) above the upper end of the seat back 25B of the rear seat 25 (see the quarter pillar 71). (See FIG. 6).
According to this configuration, even when the retractor 51 is disposed on the wheel house reinforcing member (see the wheel house gusset 37), the shoulder anchor 53 is positioned on the vehicle body side wall (the quarter pillar 71) above the upper end of the seat back 25B of the rear seat 25. By providing in the reference), it is possible to ensure appropriate take-out property of the webbing 52.

In this reference example 3 shown in FIGS. 6-8, other configurations, operations, because the effect is almost the same as the previous reference example, the same the same parts as the previous figures in FIGS. 6 to 8 Reference numerals are assigned and detailed description thereof is omitted.
Incidentally, in this reference example 3 shown in FIGS. 6-8, but the shoulder anchor 53 is provided in the quark pillar 71 that forms the rear edge of the rear door opening 70, without being limited thereto, the shoulder The anchor 53 may be provided at a predetermined position behind the seat back 25B, and may be provided on the roof rail or the rear pillar (so-called D pillar) according to the front and rear positions of the seat back 25B.

Figure 9 is a perspective view showing an actual施例the rear body structure of a vehicle.
In this embodiment, as shown in the figure, the support bracket 55 of the retractor 51 described above extends inward in the vehicle width direction from an outer piece 55a that supports one of the retractor main bodies 54 and a rear end of the outer piece 55a. An upper mounting piece 55b, an inner piece 55c that extends forward from the inner end of the upper mounting piece 55b and supports the other of the retractor main body 54, and a wheel so as to form a reverse L-shape when viewed from the lower side of the inner piece 55c. A reinforcement 55d extending downward from the top deck portion of the house inner 36 to the lower portion of the side surface of the vehicle interior of the wheel house inner 36 and a lower mounting piece 55e bent at the lower rear end of the reinforcement 55d are integrally formed. Formed and configured.

  Further, the wheel house gusset 37 as the wheel house reinforcing member described above is from the vehicle interior side surface of the wheel house inner 36 to the floor panel 1, and more specifically, from the vehicle interior side surface of the wheel house inner 36 to the rear side frame upper 29 and the rear cross member. An extension 39 extending to 21 is provided.

Then, the upper mounting piece 55b of the support bracket 55 described above is directly attached to the front surface of the front vertical wall portion 38A of the upper gusset 38 by using attachment members such as bolts and nuts, and the lower mounting piece 55e is similarly installed. It is directly attached to the front surface of the extension portion main body 39A at the lower portion of the extension portion 39 using attachment members such as bolts and nuts.
With this configuration, the lower portion of the extension 39 and the retractor 51 are connected by the above-described reinforcement 55d.

As described above, in the embodiment shown in FIG. 9, the wheel house reinforcing member (see the wheel house gusset 37) includes the extension 39 extending from the vehicle interior side surface of the wheel house (see the wheel house inner 36) to the floor panel 1. And a reinforcement 55d for connecting the lower portion of the extension 39 and the retractor 51 is provided (see FIG. 9).
According to this configuration, the retractor 51 can be connected to a member (lower part of the extension 39) located below the retractor 51 via the reinforcement 55d. A strong and rigid support structure can be obtained.

The configuration of the embodiment shown in FIG. 9 includes the reference examples 1 and 2 in which the shoulder anchor 53 is provided at the upper end of the seatback 25B, and the shoulder anchor 53 on the vehicle body side wall above the upper end of the seatback 25B. Although it can be used in combination with any of the provided Reference Example 3, it is combined with a configuration in which an upward tensile force acts on the webbing 52 between the retractor body 54 and the shoulder anchor 53 as in Reference Example 3. It is particularly effective when used.

In the embodiment shown in FIG. 9 as well, other configurations, operations, and effects are almost the same as those of the previous reference example . Therefore, in FIG. Detailed description is omitted.

In the correspondence between the configuration of the present invention and the above-described embodiment,
Car body sidewall of the invention corresponds to the cab side panels 34 or quarter pillar 71 of the embodiment,
Similarly ,
The wheel house mainly corresponds to the wheel house inner 36,
The wheel house reinforcement member corresponds to the wheel house gusset 37,
The trim member corresponds to the cab side trim 60,
The present invention is not limited to the configuration of the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 ... Floor panel 6 ... Car compartment 25 ... Rear seat 25B ... Seat back 34 ... Cab side panel (vehicle body side wall)
36 ... Wheel House Inner (Wheel House)
37 ... Wheel house gusset (Wheel house reinforcement member)
38A ... Vertical wall 39 ... Extension 50 ... Seat belt device 51 ... Retractor 52 ... Webbing 53 ... Shoulder anchor 54 ... Retractor body 55 ... Support bracket
55a ... outer piece
55b ... Upper mounting piece
55c ... Inner piece 55d ... Reinforcement 60 ... Cab side trim (trim member)
71 ... quarter pillar (side wall)

Claims (4)

A floor panel that forms the floor of the vehicle body;
A pair of wheel houses that are formed to bulge from the side wall of the vehicle body toward the vehicle interior side and accommodate the rear wheels;
A wheel house reinforcing member provided over the wheel house and a vehicle body side wall above the wheel house;
A rear seat disposed in front of the wheel house reinforcing member;
A rear vehicle body structure including a retractor for a seat belt device provided behind the rear seat,
The seat belt device includes a retractor that winds up the webbing, and a shoulder anchor that guides an intermediate part of the webbing.
The shoulder anchor is provided on the vehicle body side wall above the upper end of the seat back of the rear seat,
The retractor is an upper mounting piece that is attached to a vertical wall portion that is erected and extends in the vehicle width direction above the top deck of the wheel house formed on the wheel house reinforcing member,
An outer piece supporting one of the retractor bodies,
A support bracket having an inner piece that extends forward from the inner end of the upper mounting piece and supports the other of the retractor body;
The rear body structure of a vehicle, wherein the inner piece extends and is connected to a lower portion of an extension portion of the wheel house reinforcing portion that extends from a vehicle interior side surface of the wheel house to a floor panel . The vehicle rear body structure according to claim 1, wherein the retractor is disposed in front of the wheel house reinforcing member and behind the rear seat. The seat belt device includes a shoulder anchor that guides an intermediate portion of the webbing,
The rear body structure of the vehicle according to claim 1 or 2 , wherein the retractor is attached to the wheel house reinforcing member so that a feeding direction of the webbing is directed to the shoulder anchor . The vehicle interior side of the wheel house includes a trim member provided along the wheel house reinforcing member,
Rear body structure of a vehicle according to any one of <br/> claims 1 to 3 disposed along the vehicle-body side wall is the trim member is in the above the wheel house reinforcement member.

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