JP2010052627A - Vehicle quarter part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure, reduce the number of parts and weight, and easily secure support rigidity of a retractor and a shoulder anchor for a seat belt for a rear seat, and has a high degree of freedom in layout thereof. Provide structure.
SOLUTION: A front reinforcement 3 extending up and down along a rear edge of a rear door opening 20 and a rear reinforcement 4 extending up and down along a side edge of a back door opening 10 on the vehicle interior side of the outer panel 2. And an upper reinforcement 5 installed between the upper part of the front reinforcement and the upper part of the rear reinforcement, and installed between the front reinforcement and the rear reinforcement separated below the upper reinforcement. The upper reinforcement 5 is provided with a shoulder anchor fixing portion 52 of the rear seat belt 9, and the retractor reinforcement 6 is provided with a retractor fixing portion (60) of the seat belt. It has been.
[Selection] Figure 2

Description

  The present invention relates to a vehicle body structure of a vehicle quarter portion between a back door opening at the rear of the vehicle body and a rear door opening at the side of the vehicle body, and more particularly to a structure on the vehicle interior side of the vehicle quarter portion.

  2. Description of the Related Art Conventionally, in a 1.5-2 box type vehicle having a back door at the rear of a vehicle body, a full inner panel is disposed on the vehicle interior side of the outer panel in the quarter portion, and a rear door opening and a back door opening. A side wall portion of the vehicle body is formed by being joined to the outer panel at an edge along the side. However, in order to compensate for the lack of rigidity at the rear of the vehicle body due to the wide back door opening, a plurality of reinforcing materials are additionally provided. In patent document 1, the gusset etc. which connect the inner panel which forms a rear pillar, and a wheel house inner are provided side by side.

  By the way, when a rear seat is set to be fixed or slidable toward the rear of the space in the vehicle body in order to secure a large seating space for a passenger in a small wagon car or the like, the rear door opening approaches the back door opening. There is a tendency that the front and rear length of the quarter portion is shortened, and accordingly, the front and rear length of the quarter window is reduced or the quarter window itself is omitted.

  When the quarter window is omitted, the quarter part that looks like a rear pillar is expanded, but this does not immediately improve the rigidity of the quarter part. Since the quarter portion formed only of the outer panel without the quarter window cannot be joined to the reinforcing material except at the peripheral portion of the panel, it may be difficult to ensure rigidity.

  In addition, the rear seat belt retractor and shoulder anchor fixing part are installed in the quarter part, regardless of the presence or absence of the quarter window, in order to ensure the support rigidity of the outer panel and inner panel combined structure In addition to the increase in the number of parts and weight, the layout flexibility is low and the panel structure tends to be complicated.

JP 2008-87510 A

  The present invention has been made in view of such a state of the prior art, and the object thereof is to obtain the required strength with a small number of components, and to simplify the structure and reduce the number of parts and weight. Another object of the present invention is to provide a vehicle quarter structure that can easily secure the support rigidity of the retractor and shoulder anchor of the seat belt for the rear seat and has a high degree of freedom in layout.

In order to solve the above-described problems of the prior art, the present invention provides:
In the vehicle quarter part structure having an outer panel constituting the outer surface of the vehicle body between the back door opening at the rear of the vehicle body and the rear door opening at the side of the vehicle body,
A front reinforcement extending vertically along the rear edge of the rear door opening, a rear reinforcement extending vertically along a side edge of the back door opening, and the front reinforcement on the vehicle interior side of the outer panel. An upper reinforcement constructed between the upper part and the upper part of the rear reinforcement, and a retractor reinforcement constructed between the front reinforcement and the rear reinforcement separated below the upper reinforcement. The shoulder reinforcement of the rear seat belt is provided in the upper reinforcement, and the retractor fixation of the seat belt is provided in the retractor reinforcement.

  In a preferred aspect of the present invention, the upper reinforcement and the retractor reinforcement are joined to the front edge side of the rear reinforcement and the back side of the outer panel so as to define a closed cross section at the site. It is further equipped with materials. Further, the upper end portion and the lower end portion of the connecting member on the front edge side of the rear reinforcement are respectively connected to the lower end portion of the upper reinforcement and the upper end portion of the retractor reinforcement through the front edge side of the rear reinforcement. Polymerized and joined.

  In another preferred aspect of the present invention, the upper reinforcement is provided with a mounting portion for a back door balancer. The retractor reinforcement is installed above the fuel box. Further, the interior material covering the retractor reinforcement and the vehicle interior side below the recess is recessed in a space defined between the front reinforcement and the rear reinforcement under the retractor reinforcement. A recess is formed.

The vehicle quarter part structure according to the present invention has the following effects by the above configuration.
(1) Upper reinforcement at two locations, upper and lower, between the front reinforcement joined along the rear door opening and the rear reinforcement joined along the back door opening on the vehicle interior side of the outer panel. And the retractor reinforcement are constructed, a ladder frame-like reinforcement structure is constructed, and this structural reinforcement effect enables each reinforcement to be made smaller and lighter, with fewer components. The necessary strength and rigidity can be ensured, the structure is simplified, and the number of parts and weight can be reduced.
(2) A relatively wide space (opening) is formed between the upper reinforcement and the retractor reinforcement, or below the retractor reinforcement. Using this space, the back side of each reinforcing material and outer panel Therefore, it is possible to add the connecting material by spot welding without providing a work opening, and there is also an advantage that the space can be used for various purposes.
(3) The manufacturing process is simplified by eliminating the need for an inner panel that is placed over the entire quarter, eliminating the need to weld the reinforcing material to the inner panel. This is advantageous in reducing manufacturing costs.
(4) The configuration in which only the reinforcing material is arranged on the vehicle interior side of the outer panel without using the matching structure of the outer panel and the inner panel allows the layout flexibility of the retractor and the shoulder anchor of the seat belt for the rear seat. High and necessary support rigidity can be secured.

  In the present invention, there is further provided a connecting member that is bonded to the front edge side of the rear reinforcement and the rear surface side of the outer panel between the upper reinforcement and the retractor reinforcement and defines a closed cross section at the portion. In the present embodiment, a closed cross-section structure having a high reinforcing effect can be configured by the connecting material added by utilizing the space between the upper reinforcement and the retractor reinforcement, and a thin plate equivalent to the thickness of the outer panel Strength can be effectively improved by the thick connecting material.

  Further, the upper end portion and the lower end portion of the connecting member on the front edge side of the rear reinforcement are respectively connected to the lower end portion of the upper reinforcement and the upper end portion of the retractor reinforcement through the front edge side of the rear reinforcement. In the superposed and joined mode, the upper reinforcement and the retractor reinforcement, which are installed separately at two locations on the upper and lower sides, are connected via the front side of the rear reinforcement to maximize the reinforcing effect of the connecting material. Can get to.

  Furthermore, in the aspect in which the attachment portion of the back door balancer is provided in the upper reinforcement, the attachment portion of the balancer that requires support strength and the shoulder anchor fixing portion of the seat belt for the rear seat are provided as one reinforcement. Therefore, the number of parts and the weight can be reduced as compared with the case where a separate reinforcing material is provided.

  Further, in the aspect in which the retractor reinforcement is installed above the fuel box, the fuel box disposed on one side (usually the left side) of the vehicle body has been used to reinforce the quarter portion that has been asymmetrical in the past. However, since it becomes left-right symmetric, the development cost can be reduced, and the retractor can be laid out linearly in the vertical direction.

  Further, the interior material covering the retractor reinforcement and the vehicle interior side below the recess is recessed in a space defined between the front reinforcement and the rear reinforcement under the retractor reinforcement. In the aspect in which the concave portion is formed, the space formed below the retractor reinforcement is used for the article storage portion constituted by the concave portion of the interior material by the configuration in which the retractor is disposed above as described above. it can.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a rear portion of a vehicle body structure in a state in which a door of a vehicle 1 that implements a quarter structure according to the present invention is removed, as viewed from the rear. In the figure, the vehicle 1 is not provided with a quarter window in the quarter portion Q between the back door opening 10 at the rear of the vehicle body and the rear door opening 20 at the side of the vehicle body. It consists only of panel 2.

  As shown in FIGS. 2 to 4, there are mainly four reinforcements of the front reinforcement 3, the rear reinforcement 4, the upper reinforcement 5, and the retractor reinforcement 6 on the indoor side of the outer panel 2 in the quarter portion Q. A material (reinforce) is provided.

  FIG. 2 is a perspective view of the quarter part Q as seen from the vehicle interior side, and FIG. 3 is a perspective view showing an exploded state thereof. In FIG. 2, the outer panel 2 is omitted, and only main components on the indoor side are shown. Has been. In each drawing, the front reinforcement 3 is a reinforcing material that extends vertically along the rear edge of the rear door opening 20 and is formed into a transverse cross-sectional shape (L channel shape, FIG. 7) based on a substantially L shape. The front flange portion 30 is joined to the indoor side of the flange (20) of the outer panel 2 defining the rear door opening 20, and the lower end portion is joined to the upper flange portion of the wheel house 8.

  The rear reinforcement 4 is a reinforcing material that extends in the vertical direction along the side edge of the back door opening 10 and is formed into a cross-sectional shape (L channel shape, FIG. 7) based on a substantially L shape. A pillar-shaped reinforcing structure is formed on the indoor side of the portion Q, and the lower end portion of the flange (10) of the outer panel 2 defining the back door opening 10 at the upper end portion of the flange portion 40 on the upper rear side. The lower half of the side portion of the back door opening (10) is defined by the flange portion 40. Further, the front lower portion 43 of the rear reinforcement 4 is joined to the indoor side of the rear edge portion 23 of the outer panel 2 as shown in FIGS. 3 and 4.

  The upper reinforcement 5 is joined to the indoor side of the upper part 32 of the front reinforcement 3 and the upper part 42 of the rear reinforcement 4 at the upper end of the quarter part Q, and is laid between the reinforcements 3 and 4. The upper reinforcement 5 is made of a plate material (steel plate) thicker than the outer panel 2 and has a cross-sectional shape similar to the rear reinforcement 4 (a cross section in which the flange portion 41 on the front side of the rear reinforcement 4 is widened). The rear portion formed in the shape) is curved toward the vehicle interior side while maintaining the cross-sectional shape at the upper end side, and forms a reinforcing structure that continues from the side edge portion of the back door opening 10 to the upper edge portion. .

  The flange portion 50 on the rear side of the upper reinforcement 5 is joined to the indoor side of the flange (10) of the outer panel 2 that defines the back door opening 10 and is not shown adjacent to the flange portion 50. The vehicle body side mounting portion 51 is provided. Furthermore, as shown in FIG. 2 or FIGS. 5 and 6, a fixing portion 52 of the shoulder anchor 92 of the seat belt 9 is provided in the lower center of the upper reinforcement 5. That is, the upper reinforcement 5 is a strength member at the upper part of the quarter part Q and also serves as a reinforcing member for the two attachment parts (fixing parts) 51 and 52.

  The retractor reinforcement 6 is disposed below the upper reinforcement 5 with a space 70 therebetween, and is joined to the indoor side of the front reinforcement 3 and the rear reinforcement 4 at the front and rear edges thereof. It is installed between the reinforcements 3 and 4. Similarly to the upper reinforcement 5, the retractor reinforcement 6 is made of a plate material (steel plate) thicker than the outer panel 2, and an opening 60 for attaching the retractor 91 of the seat belt 9 is provided at the approximate center. Is provided.

  The retractor 91 is configured to fasten a bracket extending to the top and bottom of the main body portion with a bolt or the like to a fixing portion positioned above and below the opening 60 in a state where the main body portion is inserted into the opening 60 of the retractor reinforcement 6. It is fixed by. That is, the retractor reinforcement 6 includes a strength member extending in a direction intersecting with the front reinforcement 3 on the rear door opening 20 side and the rear reinforcement 4 on the back door opening 10 side, and a retractor. It also serves as a reinforcing member that supports 91 in the middle part of the quarter part Q.

  The other end of the webbing 90 drawn upward from the retractor 91 of the seat belt 9 is folded back by the shoulder anchor 92 and fixed to the side of the vehicle body floor 13 by the anchor plate 94 while being inserted through the buckle 93. Is done. Further, the shoulder anchor 92 is fixed to the fixing portion 52 of the upper reinforcement 5 through the hole 140 of the upper trim 14 shown in FIG.

  As described above, with respect to the front reinforcement 3 and the rear reinforcement 4 that are arranged at intervals in the front-rear direction and extend vertically, the upper reinforcement 5 that is erected in the direction intersecting the longitudinal direction and spaced apart in the vertical direction. The retractor reinforcement 6 forms a ladder frame-like reinforcing structure, which is joined to the planar outer panel 2, thereby obtaining a quarterly-structured Q body structure that is advantageous in strength.

  Further, as shown in FIGS. 3, 5, and 7, the outdoor side of the rear reinforcement 4 (from the vehicle interior side) in the section facing the space 70 formed between the upper reinforcement 5 and the retractor reinforcement 6. A more advantageous reinforcing structure can be obtained by arranging the connecting member 7 extending vertically along the rear surface side. Hereinafter, the connecting material 7 will be described.

  The connecting member 7 has a cross-sectional shape (L channel shape, FIG. 7) based on a substantially L-shape as in the case of other reinforcing members, and flange portions 71 are provided at the front and rear edge portions, respectively. And the flange part 72 is formed. Of these, the rear flange portion 72 is bent and extended from the connecting member 7 main body to the outside of the vehicle compartment, and further intersects the extending direction from the flange portion 71 side toward the flange portion 72 side. A plurality of reinforcing beads oriented in the vehicle front-rear direction are formed.

  As shown in FIG. 7, the connecting member 7 is joined to the outdoor side surface of the flange portion 41 of the rear reinforcement 4 in the flange portion 71 on the front side, and on the rear surface side of the vehicle body in the flange portion 72 on the rear side. It is joined to the back surface of the outer panel 2, and a closed section is defined in this portion. Since this closed cross-section structure ensures a sufficient structural strength, the connecting member 7 can be formed of a thin plate (steel plate) equivalent to the outer panel 2. In FIG. 7, 11 indicates a back door and 12 indicates a rear door.

  The connecting member 7 is disposed between the rear reinforcement 4 and the outer panel 2 by being welded to the flange portion 41 of the rear reinforcement 4 in advance and joining the rear reinforcement 4 to the outer panel 2. In this state, the rear flange portion 72 is located on the back side of the rear reinforcement 4 when viewed from the indoor side, but the space 70 between the upper reinforcement 5 and the retractor reinforcement 6 is used. And can be welded. Therefore, it is not necessary to set a work opening for welding separately.

  Further, as shown in FIG. 5, the upper end portion of the connecting member 7 is overlapped with and joined to the lower end portion of the upper reinforcement 5 via the flange portion 41 of the rear reinforcement 4, and the lower end portion of the connecting member 7. Is overlapped and joined to the upper end portion of the retractor reinforcement 6 via the flange portion 41 of the rear reinforcement 4.

  With such a configuration, the upper reinforcement 5 and the retractor reinforcement 6 that are installed to be spaced apart at two upper and lower positions are connected by the connecting material 7 on the rear surface side of the rear reinforcement 4, and the front reinforcement 3 In addition, since the closed cross-sectional structure by the connecting member 7 is arranged in the space 70 where the rear reinforcement 4 does not exist, there is an advantage that the strength balance of each part in the vertical direction is made uniform.

  In the above embodiment, each panel and reinforcement are basically joined by spot welding, but may be made by other joining methods that can obtain the same performance.

  The ladder frame-like reinforcing structure of the quarter part Q according to the present invention as described above has an advantage in the layout of the vehicle body parts in addition to the reinforcement of the quarter part Q.

  As shown in FIGS. 2, 5, and 6, the reinforcing structure of the quarter portion Q according to the present invention is also provided between the retractor reinforcement 6 and the wheel house 8 (wheel house inner panel) located below the retractor reinforcement 6. A space 80 is formed. As shown in FIGS. 4 and 6, an upper trim 14 and a quarter trim 15, which are interior parts, are mounted on the indoor side of the quarter portion Q having a reinforcing structure. If the concave portion 150 is defined by projecting the portion corresponding to the space 80 to the outside of the vehicle compartment through the space 80, that is, by making the concave portion viewed from the interior 130 side, the concave portion 150 becomes an expanded load. It can be used as a room space or as a storage space for goods by providing a lid or the like.

  In particular, in the vehicle 1 in which the rear door opening 20 is arranged near the rear end of the vehicle as shown in the drawing, the front and rear length of the quarter part Q is short, so that the wheel house 8 (wheel house outer) is conventionally used. If the retractor is installed via the bracket, there is hardly any space that can be used as a storage space or the like below the quarter part Q. However, the structure of the quarter part Q according to the present invention is suitable for the retractor 91 described later. A space 80 with high utility value is obtained.

  Further, as shown in FIGS. 5 (b) and 6 (b), a fuel box 81 (82) is usually arranged at the lower part of the left quarter part QL. In many cases, there are space restrictions and the arrangement of the retractors is asymmetrical. However, in the reinforcement structure of the quarter part Q according to the present invention, the retractor 91 can be installed above the fuel boxes 81 and 82, and a symmetrical arrangement as shown in FIGS. It is advantageous in reducing

  Conventionally, when the retractor is provided with an angle sensor and is inclined at a certain angle or more, the left and right sensor parts have different specifications. I must. However, in the reinforcement structure of the quarter part Q according to the present invention, the retractor 91 can be freely laid out, and the left and right webbing 90 from the retractor 91 to the shoulder anchor 92 are both linear with no inclination. Since it can be installed so as to have a layout, the retractor 91 can be a left-right common part.

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

It is the perspective view which looked at the vehicle body structure rear part of the state which removed the door of the vehicle which implemented the quarter part structure which concerns on this invention from the back. It is the perspective view which looked at the quarter part which concerns on this invention embodiment from the vehicle interior side. It is a perspective view which shows the decomposition | disassembly state which looked at the quarter part which concerns on this invention from the vehicle interior side. It is a perspective view which shows mounting | wearing of the interior component to the quarter part which concerns on this invention embodiment. (A) is the side view which looked at the quarter part of the vehicle right side which concerns on this invention embodiment from the vehicle interior side which respectively shows the quarter part of the left side. (A) is AA sectional drawing of Fig.5 (a), (b) is BB sectional drawing of FIG.5 (b). It is CC sectional drawing of Fig.5 (a).

Explanation of symbols

1 Vehicle 2 Outer Panel 3 Front Reinforce 4 Rear Reinforce 5 Upper Reinforce 6 Retractor Reinforce 7 Connecting Material 8 Wheelhouse 9 Seat Belt 10 Back Door Opening (Flange)
11 Back door 12 Rear door 14 Upper trim (interior material)
15 Quarter trim 20 Rear door opening (flange)
30, 40, 41, 43, 50, 71, 72 Flange part 51 Attachment part 52 Fixing part 70, 80 Space Q Quarter part

Claims (6)

In the vehicle quarter part structure having an outer panel constituting the outer surface of the vehicle body between the back door opening at the rear of the vehicle body and the rear door opening at the side of the vehicle body,
A front reinforcement extending vertically along the rear edge of the rear door opening, a rear reinforcement extending vertically along a side edge of the back door opening, and the front reinforcement on the vehicle interior side of the outer panel. An upper reinforcement constructed between the upper part and the upper part of the rear reinforcement, and a retractor reinforcement constructed between the front reinforcement and the rear reinforcement separated below the upper reinforcement. A vehicle quarter part structure, wherein a shoulder anchor fixing part of a rear seat belt is provided in the upper reinforcement, and a retractor fixing part of the seat belt is provided in the retractor reinforcement. .   A connecting member that is joined between the front reinforcement side of the rear reinforcement and the back side of the outer panel between the upper reinforcement and the retractor reinforcement and that defines a closed cross section at the portion; The vehicle quarter part structure according to claim 1, wherein:   The upper end portion and the lower end portion of the connecting material on the front side of the rear reinforcement are overlapped with the lower end portion of the upper reinforcement and the upper end portion of the retractor reinforcement, respectively, via the front edge side of the rear reinforcement. The vehicle quarter part structure according to claim 2, wherein the vehicle quarter part structure is joined.   The vehicle quarter part structure according to any one of claims 1 to 3, wherein a mounting portion for a back door balancer is provided in the upper reinforcement.   The vehicle quarter part structure according to any one of claims 1 to 4, wherein the retractor reinforcement is installed above the fuel box.   The interior material covering the retractor reinforcement and the vehicle interior side below the recess has a recess recessed into a space defined between the front reinforcement and the rear reinforcement under the retractor reinforcement. The vehicle quarter part structure according to claim 5, wherein the vehicle quarter part structure is formed.

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