JPH0752789Y2 - Car body structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a vehicle body structure in which a back door is provided at a rear portion of a vehicle body and a back door hinge is coupled to a rear portion of a side wall.

(Prior Art) A back door 1 as shown in FIG. 2 may be provided on the rear portion of a vehicle. The back door 1 is connected to a structural portion of a vehicle body 2 as shown in FIG. 3 via a back door hinge 3.

Hereinafter, the structure of the vehicle body 2 portion to which the back door hinge 3 is coupled will be described. It is the quarter panels 4 and 5 that form the left and right rear pillars at the rear end of the vehicle body 2.
Of these, for example, the back door hinge 3 is joined to the right quarter panel 4. The quarter panel 4 includes a quarter outer panel 6 and a quarter inner panel 7, and a side window 8 is formed. Here, the edge portions 6a, 7 of the openings forming the side windows 8 of the quarter outer panel 6 and the quarter inner panel 7 are formed.
a are connected to each other.

Further, a quarter outer extension 9 is provided at a portion to which the back door hinge 3 is coupled so as to correspond to the rear end of the quarter panel 4. The quarter outer extension 9 is hooked and joined between the rear edge portion 6b of the quarter outer panel 6 and the rear edge portion 7b of the quarter inner panel 7, and the rear edge portion 6b of the quarter outer panel 6 is moved forward. Bent towards this rear edge
One end edge portion 9a of the quarter outer extension 9 is overlapped and spot-welded from the outer side in the vehicle width direction of 6b. Here, the black-painted portion in the figure indicates the spot-welded portion.

In addition, the quarter outer extension 9 has a hinge coupling surface 9c formed in the middle of the one end edge portion 9a extending forward. Furthermore, this hinged surface
The other end edge portion 9b extending from 9c is extended toward the inner side in the vehicle width direction, and is spot welded to the rear edge portion 7b of the quarter inner panel 7 by contacting and overlapping in a flange shape. Between the rear edge portion 7b and the hinge coupling surface 9c, a phosphorus hose coupling portion 9d bent rearward is formed.

The hinge coupling surface 9c is provided with a plurality of through holes 9e penetrating in the plate thickness direction, that is, substantially in the vehicle width direction, and the back door hinge is provided from the outside of the hinge coupling surface 9c in the vehicle width direction. Linkagement 10 is polymerized. The back door hinge reinforcement 10 has a U-shaped flat cross section with the front opening, and the inner side surface 11 in the vehicle width direction is overlapped with the back surface of the hinge coupling surface 9c as described above. The inner surface 11 and the back door hinge 3 are provided with similar through holes 3e and 11e at positions corresponding to the through holes 9e formed in the hinge coupling surface 9c, and bolts are provided in the respective through holes. -A nut structure 12 is provided. The back door hinge reinforcement 10, the quarter outer extension 9, and the back door hinge 3 are sequentially superposed by the plurality of bolt / nut structures 12 and tightly coupled by the bolt / nut structure 12.

Further, the two front edge portions 10a, 10b facing forward of the back door hinge reinforcement 10 are respectively bent in directions away from each other, and both front edge portions 10a, 10b are bent.
A rear pillar link hosement 13 is connected between the two. This rear pillar link hosement
An outer edge portion 13a in the vehicle width direction of 13 is spot-welded by being overlapped with a front edge portion 10a of the back door hinge linkage 10 on the outer side in the vehicle width direction. Further, the middle portion of the rear pillar link reinforcement 13 is overlapped and spot-welded with the front edge part 10b of the back door hinge link support 10 on the inner side in the vehicle width direction. As a result, a first closed cross section 14 is formed between the back door hinge reinforcement 10 and the rear pillar reinforcement 13.

Further, an inner edge portion 13b extending inward in the vehicle width direction is extended from a middle portion of the rear pillar link hosement 13. The inner edge portion 13b is extended by a predetermined dimension in the vehicle width direction, and is superposed on the phosphorus hose coupling portion 9d of the quarter outer extension 9 and spot-welded. In this manner, the quarter outer extension 9, the front edge portion 10b of the back door hinge reinforcement 10 and the rear pillar reinforcement 13 form a second closed cross section 15.

Although the back door hinge 3 is coupled to the quarter panel 4 having the cross-sectional structure as described above, when the back door 1 is opened and closed, the outer edge portion 13a of the rear pillar link hosement 13 and the back door hinge coupled to the outer edge portion 13a. The outer front edge portion 10a of the phosphorus reinforcement 10 may be displaced in the arrow A direction. Therefore, rattling tends to occur when the back door 1 is opened.

Increasing the rigidity of the closed cross section can be realized by increasing the area of the closed cross section formed by each wall surface, but it increases the wall surface of the vehicle body, narrows the view from the passenger compartment, and reduces the vehicle body design. It became a big constraint and was not desirable.

(Problems to be solved by the invention) In a vehicle body structure in which a back door hinge is connected to a rear portion of a quarter panel, when the back door hinge is connected, lack of rigidity of the vehicle body occurs, and a portion of the quarter panel where the back door hinge is connected is generated. Displacement would occur. Therefore, rattling may occur when the back door is opened and closed.

The present invention has been made in view of the above problems, and a vehicle body structure capable of obtaining high rigidity with the same dimensions as conventional ones without increasing the closed cross section of the part to which the back door hinge of the quarter panel is connected. The purpose is to provide.

[Configuration of the Invention] (Means for Solving the Problem) The present invention provides a rear pillar outer extension between a rear edge portion of a rear pillar outer panel and a rear edge portion of a rear pillar inner panel, and a back door hinge is provided on the rear pillar outer extension. A hinge coupling surface for coupling is provided, and on the back surface of this hinge coupling surface, a vehicle width direction inner side surface of a back door hinge reinforcement with the opening side edge of the U-shaped section facing forward is coupled. Is provided between the front edge portions of the rear pillar linking hose to form a first closed cross section, and the inner edge of the rear pillar link hosement is extended to form the second closed cross section to form the rear pillar outer extension. Connect it to the front of the rear pillar link hose The rear end of the tension was connected, and the front edge of this rear pillar link hose extension was inserted between the rear pillar outer panel and the front edge corresponding to the side window formed on the front side of the rear pillar inner pan and joined. It is in the body structure.

(Operation) By providing the rear pillar line hose extension, the load applied to the rear pillar outer extension, the back door hinge link hose and the rear pillar line hose can be received by the front part of the rear pillar outer panel and the rear pillar inner panel. As a result, the rigidity of the entire rear pillar can be increased.

(Embodiment) An embodiment of the present invention will be described with reference to FIG. 1. However, since the basic structure thereof is the same as the vehicle body structure described in the conventional example, only the rear cross section of the rear pillar 20 will be shown and described.

Here, the rear pillar 20 is formed by a part of the quarter panel 4 of the vehicle body 2, and the quarter panel 4 includes a quarter outer panel 6 and a quarter inner panel 7. Here, the quarter outer panel 6 partially forms the rear pillar outer panel 21, and the quarter inner panel 7 partially forms the rear pillar inner panel 22.

The quarter outer panel 6 is formed with an edge portion 6a of an opening forming the side window 8. The edge 6a is the front edge 21a of the rear pillar outer panel 21.

Similarly, the quarter inner panel 7 is also formed with an edge portion 7a of an opening that forms the side window 8.
The edge 7a is the front edge 22 of the rear pillar inner panel 22.
is a.

Further, a quarter outer extension 9 is hooked up and connected between the rear outer edges 6b and 7b of the quarter outer panel 6 and the quarter inner panel 7, respectively. Here, the rear edge portions 6b and 7b of the quarter outer panel 6 and the quarter inner panel 7 are the rear edge portions of the rear pillar outer panel 21 and the rear pillar inner panel 22, respectively.
21b and 22b. The quarter outer extension 9 is the rear pillar outer extension 23. The quarter outer extension 9 has one end edge 9a on the outer side in the vehicle width direction, which is overlapped from the outer side in the vehicle width direction and spot welded to a rear edge portion 6b of the quarter outer panel 6 which is bent toward the front of the vehicle body. .

Further, the back door 1 is a midway portion continuous with one end edge portion 9a located outside the quarter outer extension 9.
Forming a hinge connecting surface 9c for connecting the back door hinge 3 for rotatably supporting. The hinge coupling surface 9c has a plurality of through holes 9e formed in the plate thickness direction. Then, the quarter outer extension 9 is bent inward in the vehicle width direction continuously from the hinge coupling surface 9c.
Is bent toward the rear side, so the phosphorus hose joint 9d
The other end edge portion 9b extending inward in the vehicle width direction continuously from the phosphorus hose coupling portion 9d is bent substantially rearward and overlaps with the rear edge portion 7b of the quarter inner panel 7 to form a spot. It is welded.

The hinge coupling surface 9c is formed toward the inner side in the vehicle width direction, and the back door hinge 3 is coupled thereto.

A back door hinge reinforcement 10 is joined to the back side of the hinge joining surface 9c. The back door hinge link reinforcement 10 is located between the quarter outer panel 6 and the quarter inner panel 7, and has a U-shaped flat cross section. The edge 10 of the U-shaped opening side.
Both a and 10b are located toward the front, and the inner surface 1 in the vehicle width direction
0c is superposed on the back surface of the hinge coupling surface 9c.

Here, the inner surface 10c of the back door hinge reinforcement 10 and the same through holes 3e, 10e in the back door hinge 3 as opposed to the plurality of through holes 9e of the hinge coupling surface 9c.
Has been drilled.

The back door hinge linkage 10, the quarter outer extension 9 and the back door hinge 3 are tightly connected to each other through through holes 3e, 9e and 10e with a bolt / nut structure 12 penetrating therethrough. Here, the nut 12b is previously joined to the back door hinge linkage 10 by welding, and
12a is inserted from the back door hinge 3 side and screwed.

The front edge portions 10a and 10b of the back door hinge reinforcement 10 coupled in this manner extend forward of the quarter outer extension 9 and are bent in directions away from each other.

A rear pillar link reinforcement 13 is connected to the front edge portions 10a and 10b of the back door hinge link support 10 in a hanging state. An outer edge portion 13a of the rear pillar link reinforcement 13 is superposed on the outer front edge portion 10a of the back door hinge reinforcement 10 and is joined by spot welding. Further, the middle part of the rear pillar link reinforcement 13 is extended inward in the vehicle width direction, and the front edge part 10b inside the back door hinge link support 10 is extended.
Are polymerized and bound. The rear pillar link hosement 13 between the two front edge portions 10a, 10b of the back door hinge link hosement 10 is bent forward in a convex shape, and is closed to the back door hinge link hosement 10 in the first closed direction. A cross section 14 is formed.

Further, the middle portion of the rear pillar link hosement 13 is extended inward in the vehicle width direction, and the inner edge portion 13b is bent rearward so that the quarter outer extension 9 is formed.
Of the phosphorus hose joint 9d and spot welded. Here, this rear pillar Lin hosement 13
A second closed cross section 15 is formed between the back door hinge linkage 10 and the quarter outer extension 9.

Then, the outer edge 13a of the rear pillar link hosement 13
A rear side edge portion 24b of a rear pillar link hose extension 24, which will be described later, is superposed and joined from the vicinity to the convex center portion. The rear edge side portions 24b are spot-welded to the side surface portion 13c near the outer edge portion 13a of the rear pillar link hosement 13 and the midway portion 13d near the convex center portion continuous with the side surface portion 13c, respectively, and are joined to the midway portion 13d. It is bent forward from the marked part. The front bent portion of the rear pillar link hose extension 24 is an edge portion of the opening corresponding to the side windows 8 of the quarter outer panel 6 and the quarter inner panel 7.
It is located on the inner side in the vehicle width direction than 6a and 7a, is bent outward in the middle, and is further bent forward.

The front side edge 24a of the rear pillar ring hose extension 24 extended forward is sandwiched between the edges 6a, 7a corresponding to the openings of the side windows 8 of the quarter outer panel 6 and the quarter inner panel 7. They are intricately polymerized and joined by spot welding.

According to the rear pillar 20 of the vehicle body formed in this way, it is possible to increase the rigidity with respect to the force in the direction of the arrow A generated by the input from the back door hinge 3. That is, in the conventional structure, the front edge portion 10a on the outer side of the back door hinge link hose 10 was easily displaced, but the rear pillar ring near the outer edge portion 13a of the rear pillar link hosement 13 connected to the front edge portion 10a. The rear edge 24b of the hose extension 24 is joined, and the front edge 24a of the rear pillar ring hose extension 24 is located between the edge 6a, 7a of the opening corresponding to the side window 8 of the quarter outer panel 6 and the quarter inner panel 7. The force in the direction of the arrow A can be dispersed and received by the entire rear pillar 20 due to the slip-in connection. As a result, the rear pillar
Rigidity could be increased without increasing the size of the flat section of 20.
Further, this can sufficiently reduce rattling when the back door is opened. By preventing the rear pillar 20 from increasing in size, it is possible to secure a wide field of view from the interior of the vehicle and increase the degree of freedom in vehicle body design.

The present invention is not limited to the above embodiment. For example, in the above-described one embodiment, the rear pillar 20 is constituted by the quarter panel 4, but the present invention is not limited to this, and the rear pillar 20 may be formed by a member unique to the rear pillar, and the lower end portion may be connected to the quarter panel. . That is, it is not limited to which member the rear pillar is integrally formed with, or whether it is formed of a dedicated member. Further, most of the connections of the respective members are spot welding, but the connection is not limited to this.

[Advantages of the Invention] A rear pillar ring hose having a rear edge portion joined to the front surface of the rear pillar link hosement, and a front edge edge inserted between the front edge parts of both the rear pillar outer panel and the rear pillar inner panel. By providing the rear attachment, it is possible to effectively support the back door hinge reinforcement and the rear pillar reinforcement, which are easily displaced when the back door is opened and closed. This makes it possible to increase the rigidity without increasing the flat cross section of the rear pillar, sufficiently reduce rattling when the back door is opened and closed, and secure a wide view from the vehicle interior. Further, since the rigidity is increased without increasing the size of the rear pillar, it is possible to obtain a high degree of freedom in vehicle body design.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a rear pillar in an embodiment of the present invention, FIGS. 2 and 3 are conventional examples, and FIG. 2 is a perspective view showing a rear portion of a vehicle body provided with a back door. The drawing is a cross-sectional view taken along the line III-III in FIG. 1 …… Back door, 8 …… Side window, 9c …… Hinge coupling surface, 10 …… Backdoor hinge link hosement, 13 …… Rear pillar link hosement, 14 …… First closed cross section, 15 …… Second Closed section, 21 …… Rear pillar outer panel, 21a …… Front edge, 21b …… Rear edge, 22 …… Rear pillar inner panel, 22a …… Front edge, 22b …… Rear edge, 23 ……
Rear pillar outer extension, 24 …… Rear pillar link hose extension.

Claims (1)

[Scope of utility model registration request] 1. A rear pillar outer panel having a front edge portion corresponding to an opening of a side window and a rear edge portion corresponding to an opening of a back door formed at a rear portion thereof, and the rear pillar outer panel facing the inside of the rear pillar outer panel. A rear pillar inner panel having a front edge portion corresponding to the opening of the side window and a rear edge portion corresponding to the opening of the back door, and a rear edge portion of the rear pillar outer panel and a rear edge portion of the rear pillar inner panel. Between the rear pillar outer extension and the rear pillar outer panel and the rear pillar inner panel, which has a hinge coupling surface formed in the middle of the rear pillar outer panel. The inner side surface in the vehicle width direction is connected to the back surface of the hinge connecting surface of the rear pillar outer extension. And clauses door hinge phosphorus hose reinforcement,
A first closed cross section is formed between the opening side edge portions of this back door hinge link reinforcement to be hooked and joined together,
In addition, a rear pillar outer hose with a second closed cross section formed between the rear pillar outer extension and an edge extending inward in the vehicle width direction is coupled to the rear pillar outer extension, and the rear pillar outer hose of the rear pillar outer hose. The rear side edge portion is connected to the front side surface, and the front side edge portion is provided with the rear pillar outer panel and the rear pillar ring hose extension which is inserted and inserted between the front edge portions corresponding to the openings of the side windows of the rear pillar inner panel. Body structure characterized by that.