JPH1143014A - Structure of upper bag part for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently improve strength of an upper bag part of a vehicle while suppressing increase of size and weight of each part of the upper bag part, and easily attach a retractor of a rear seat belt. SOLUTION: A side bracket is attached to a quarter panel inner 7 so as to be projected inward in widthwise direction of a car. The side bracket has, at is front surface part, a first bracket piece 1A with a bent section forming a recession for housing a retractor for a rear seat belt, and a second bracket piece 1B positioned lower than the first bracket piece 1A. An upper back panel member 2 extending in the widthwise direction of the car is prepared by superposing an upper back panel main body 20 and a reinforcing panel 21 in a longitudinal direction and connecting them to each other. The upper back panel main body 20 and the reinforcing panel 21 of the upper back panel member 2 are respectively superposed on the first bracket piece 1A and the second bracket piece 1B and connected thereto. The connection portions serve as a closed sectional structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a structure of an upper back portion of an automobile.

[0002]

As is well known, an upper back portion of an automobile is a portion connecting left and right quarter panels below a rear window glass of a vehicle body, and separates a vehicle compartment from a trunk room. Generally, such an upper back portion is constituted by an upper back panel member whose main part extends in the vehicle width direction. However, if the upper back panel member is formed to have the same length as the width of the vehicle interior, during assembly and manufacture of the vehicle, the upper back panel member is held by an assembling robot and inserted into the vehicle interior through the opening of the rear window. Work becomes difficult. Therefore, conventionally, a side bracket that protrudes inward in the vehicle width direction is attached to each of the left and right quarter panel inners, and means for assembling the longitudinal ends of the upper back panel member to these side brackets are adopted. Have been. According to such a means, since the length of the upper back panel member can be made shorter than the width of the interior of the vehicle, the upper back panel member can be easily assembled between the quarter panels by a robot operation.

[0003] When manufacturing an upper back portion of an automobile having the above-described structure, from the viewpoint of improving the strength of the vehicle body and reducing the weight of the vehicle body, the number of use points such as thick reinforcement is minimized. Also, while minimizing the size of each member constituting the upper back portion as much as possible,
It is required to increase the strength of each part of the upper back part. In particular, in a structure in which the upper back panel member is supported by the side brackets, it is necessary to sufficiently increase the strength of the connecting portions thereof. In addition, a retractor for the rear seat belt may be attached to the upper back portion. In this case, it is necessary to efficiently secure a space for attaching the retractor and sufficiently increase the strength of the attaching portion of the retractor. There is.

Conventionally, as means for attaching a retractor of a rear seat belt to an upper back portion, there is a means described in Japanese Utility Model Laid-Open No. 1-57949, for example. This conventional means is a means in which a recess is formed in a side bracket that supports an upper back panel member, and a retractor for a rear seat belt is accommodated in the recess.
According to this conventional means, the retractor can be mounted with good space efficiency without protruding to the rear seat side, and a part of the side bracket forming the recess is formed in a bent cross-sectional shape. This increases its rigidity. However, the above-mentioned conventional means is merely a means in which a part of the side bracket is simply formed into a bent cross-sectional shape so as to form a concave portion for accommodating the retractor, and the connection between the side bracket and the upper back panel member is performed. In the structure of the part, the flat edge of the side bracket and the edge of the upper back panel member are merely overlapped and welded. For this reason, in the above-described conventional means, the strength of the connecting portion between the side bracket and the upper back panel member and the peripheral portion thereof cannot be said to be efficiently and sufficiently increased, and there is room for improvement in this respect. was there.

The present invention has been conceived in view of such circumstances, and the strength of the upper back portion is reduced while suppressing the size and weight of each portion of the upper back portion of the vehicle. It is an object of the present invention to improve the efficiency efficiently and to make it easier to attach the retractor to the rear seat belt.

[0006]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

The present invention includes a side bracket attached to the quarter panel inner so as to protrude inward in the vehicle width direction from the quarter panel inner, and an upper back panel member extending in the vehicle width direction. A longitudinal end portion of the back panel member is a structure of an upper back portion of an automobile supported by the side bracket, and the side bracket can accommodate a retractor of a rear seat belt in a front portion of the side bracket. A first bracket piece having a bent cross-sectional shape forming a concave portion, and a second bracket piece located below the first bracket piece.
And the upper back panel member is formed by joining an upper back panel main body and a reinforcing panel in a direction of their upper and lower thicknesses, and joining the upper back panel member and the upper back panel member. The upper back panel body and the reinforcing panel of the panel member are overlapped and joined to the first bracket piece and the second bracket piece, respectively, and these joined parts have a closed cross-sectional structure. It is characterized by.

In the present invention, the upper back panel body and the reinforcing panel constituting the upper back panel member are connected to the first bracket piece of the side bracket and the second bracket piece.
Each of the bracket portions is overlapped and joined to form a closed cross-sectional structure at the joint portion between the upper back panel member and the side bracket. Therefore, in the present invention, the strength of the joint between the upper back panel member and the side bracket having the closed cross-sectional structure can be efficiently increased by the characteristics of the closed cross-sectional structure. The strength of the longitudinal end of the back panel member and the side bracket itself is also increased. As a result, in the present invention, the necessity of increasing the size of the side bracket itself or the upper back panel member itself or adding and providing a large number of reinforcements is suppressed as much as possible, and the weight of these parts is prevented from increasing. In addition, the effect of efficiently and rationally increasing the strength of the upper back portion is obtained.

Further, according to the present invention, the recess formed by the first bracket piece of the side bracket can accommodate the retractor of the rear seat belt, and the retractor can be mounted on the side bracket with good space efficiency. Although an advantage is obtained, the side bracket to which the retractor is attached is a portion whose rigidity is increased by joining with the upper back panel member, as described above. Therefore, it is optimal for mounting a retractor requiring a large supporting strength. Of course, since the first bracket piece forming the recess capable of accommodating the retractor has a bent cross-sectional shape, the rigidity of the side bracket can be further enhanced by the characteristics of the bent cross-sectional shape.

In a preferred embodiment of the present invention, the lower end of the roof side panel inner provided above the quarter panel inner extends below the upper edge of the quarter panel inner, and The lower end portion of the side panel inner and the portion of the quarter panel inner where the side bracket is provided may be overlapped and joined to each other.

According to such a configuration, the portion of the quarter panel inner on which the side bracket is provided is reinforced by the lower end of the roof side panel inner, so that the support strength of the side bracket can be efficiently increased. it can. In addition, the work of partially overlapping the lower end of the roof side panel inner with the quarter panel inner and joining them can be easily performed in the normal work process performed when assembling the vehicle body, and the workability is good. Becomes In other words, as a means to reinforce the part where the side brackets are provided, if a special reinforcement was produced and then this reinforcement was welded to the quarter panel inner, a series of these measures would be adopted. The workability is very poor, but according to the above configuration, there is no such problem.

In another preferred embodiment of the present invention,
The side bracket may be provided with a bracket having a lock striker for fixing and holding the seat back of the rear seat.

According to such a configuration, the mounting of the bracket having the lock striker can be efficiently performed by using the side brackets constituting the upper back portion. Also, as described above, the side bracket is a portion whose rigidity is increased by joining with the upper back panel member. If a bracket provided with a lock striker is attached to this portion, the mounting strength is also reduced. It will be preferable.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a perspective view of an essential part showing an example of the structure of an upper back portion of an automobile according to the present invention. FIG.
FIG. 2 is a sectional view taken along line II-II of FIG. 1. FIG. 3 is an exploded perspective view of a main part of the structure of the upper back portion of the automobile shown in FIG. FIG.
FIG. 4 is a perspective view of relevant parts in a state where an upper back panel member is supported by a side bracket in the configuration shown in FIG. 3. FIG. 5 is a sectional view taken along line VV of FIG. FIG. 6 is a main part exploded side view showing an example of each of the quarter panel inner and the roof side panel inner. In these drawings, the arrow Fr indicates the front of the vehicle, the arrow Up indicates the upper side in the vehicle height direction, and the arrow In indicates the inner side in the vehicle width direction.

In FIG. 1, an upper back portion A of the vehicle according to the present embodiment is provided with a side bracket 1 on a side portion 70 of the quarter panel inner member 7 facing inward in the vehicle width direction, and an upper back panel on the side bracket 1. It has a structure in which the longitudinal end of the member 2 is supported. A retractor 5 for a rear seat belt is attached to the side bracket 1, and a lock striker 40 for fixing and holding a seat back 6 of the rear seat.
Is attached. In the upper back portion A, the side brackets 1 are attached to two quarter panel inners provided on both left and right sides of the vehicle body, and both ends of the upper back panel member 2 in the longitudinal direction are supported by these two side brackets 1. This is a symmetrical structure. However, for convenience of explanation, in the present embodiment, a configuration of only the one end side in the longitudinal direction of the upper back portion A will be described.

As best seen in FIGS. 2 and 3,
The side bracket 1 includes a first bracket 11 and a second bracket 12 formed separately from each other. These two brackets 11, 12
Are formed by pressing a metal plate having a constant thickness, and are attached to the side surface 70 of the quarter panel inner 7 so as to protrude inward in the vehicle width direction.

The first bracket 11 forms a first bracket piece 1A having a bent cross-sectional shape.
Specifically, the first bracket piece 1A is provided with two horizontal plates 11a and 11b having a height difference and displaced in the vehicle front-rear direction, and an upright plate connecting these horizontal plates 11a and 11b. And a portion 11c. The first bracket 11 is connected to the horizontal plate 11a.
And flange portions 19a, 19 provided on the upright plate portion 11c.
b is in contact with the side portion 70 of the quarter panel inner 7,
The flanges 19a and 19b are fixed to the quarter panel inner 7 by welding W1 and W2 to the flanges 19a and 19b. A concave portion 14 is formed above the horizontal plate portion 11a and a front portion of the upright plate portion 11c. In the concave portion 14, the retractor 5 of the rear seat belt is accommodated. After the mounting plate 50 of the retractor 5 is overlaid on the horizontal plate 11b,
The horizontal plate portion 11b is fixedly attached to the horizontal plate portion 11b by a bolt 91 inserted into a bolt insertion hole 90 formed in the horizontal plate portion 11b.

In this embodiment, the reinforcement 9 is provided below the first bracket 11. The reinforcement 9 is a bent member fixedly attached to the side surface 70 of the quarter panel inner 7 by welding W3 to the lower end thereof. The bracket 11 is in contact with the lower surface of the horizontal plate 11b. Above retractor 5
The bolts 91 for attaching the bolts are also fastened and fixed so as to penetrate the reinforcements 9. When the retractor 5 of the rear seat is mounted on the vehicle body, it is necessary to sufficiently increase the mounting strength. The reinforcement 9 is to meet such a demand.

The second bracket 12 has a bent cross section substantially similar to that of the first bracket 11, and has two level plates 12a, 12b, 12b and these horizontal plate portions 12
a, and an upright plate portion 12c connecting the a and 12b. The horizontal plate portion 12b of the second bracket 12 is a portion corresponding to the second bracket piece 1B in the present invention.
The second bracket 12 includes the horizontal plate portions 12a, 1
The flange portions 19c and 19d provided on the side surface 70 of the quarter panel inner 7 and the reinforcement 9 are provided.
The flanges 19c and 19d are welded W4 and W5 to be fixedly attached to the quarter panel inner 7. The second bracket 12 is disposed below the first bracket 11, and a certain gap is provided between the horizontal plate portion 12b and the horizontal plate portion 11b of the first bracket 11. Have been. On the other hand, the horizontal plate portion 12a of the second bracket 12 and the horizontal plate portion 11a of the first bracket 11
Are overlapped in contact with each other.

The bracket 4 provided with the lock striker 40 includes the first bracket 11 and the second bracket 1.
2 and two horizontal plate portions 11a and 12a with bolts 9
2,92. Bracket 4 above
Is formed in a bent shape that hangs downward from the horizontal plate portions 11a and 12a. Rear seat back 6
A latch mechanism 60 that can be locked to the lock striker 40 is provided on a rear surface of the lock striker 40.

3 and 4, the upper back panel member 2 has a shape extending in the vehicle width direction, and includes an upper back panel main body 20 and a reinforcing panel 21. Each of the upper back panel body 20 and the reinforcing panel 21 is formed by pressing a metal plate having a fixed thickness, and the upper back panel body 20 is, for example, a speaker for a car stereo. It is configured to have a concave portion 24 for mounting in place. Although the reinforcing panel 21 has substantially the same length as the upper back panel main body 20,
The width in the vehicle longitudinal direction is the upper back panel body 2
It is formed to be narrower than 0, and is overlapped and welded to the lower surface of the rear edge of the upper back panel body 20. The total cross-sectional structure in which the reinforcing panel 21 and the upper back panel main body 20 are joined together is a closed cross-sectional structure in which the cross-sectional shape of these panel members is a closed cross-sectional shape.

The longitudinal end of the upper back panel member 2 is supported by the side bracket 1 as described above, and has the following specific structure. That is, the connection structure between the side bracket 1 and the upper back panel member 2 is such that the longitudinal end portion of the upper back panel main body 20 is located on the horizontal plate portion 11b of the first bracket 11, as is clearly shown in FIG. And the parts are joined together by welding W6. On the other hand, the longitudinal ends of the reinforcing panel 21 are superimposed on the horizontal plate portion 12b of the second bracket 12 and welded W7 to join those portions together. If working holes 99a and 99b are provided in advance in the horizontal plate portion 12b of the second bracket 12 and the longitudinal end of the upper back panel body 20, respectively, the welding tools K are provided in these holes 99a and 99b.
And welding W6 and W7 can be appropriately performed. The welded portion between the side bracket 1 and the upper back panel member 2 is configured such that the ends of the upper back panel member 2 formed in a closed cross-sectional structure are connected to the two horizontal plate portions 11b and 12b of the side bracket 1, respectively. Because of the welded structure, these welded portions also have a closed sectional structure.

When attaching the upper back panel member 2 to the side bracket 1, the auxiliary panel 3 is attached in advance to one side of the concave portion 14 of the first bracket 11, as shown in FIG. The auxiliary panel 3 is a panel for forming the side wall of the concave portion 14. By providing the auxiliary panel 3, it is possible to avoid a configuration in which the side of the concave portion 14 is opened unnaturally. Also,
In FIG. 4, the retractor 5 and the lock striker 40
Are omitted, but they are attached to a predetermined position of the side bracket 1 in advance before the upper back panel member 2 is assembled to the side bracket 1. 3 and FIG.
A member indicated by reference numeral 6 is a panel member that forms an upper peripheral portion of the trunk room.

In the structure of the upper back portion A of the present embodiment, a roof side panel inner 8 is provided above the quarter panel inner 7, and a lower end portion 8a of the roof side panel inner 8 is connected to the quarter side. The panel inner 7 has a configuration in which the side brackets 1 are overlapped and joined at positions where the side brackets 1 are provided. That is, as shown in FIG. 6, the lower end portion 8a of the roof side panel inner 8 arranged above the quarter panel inner 7
Is formed in a shape overlapping with the upper part of the quarter panel inner 7. When a bead for increasing the strength is provided on the upper part of the quarter panel inner 7, a bead having a shape corresponding to the bead is also formed on the lower end of the roof side panel inner 8.
When the quarter panel inner 7 and the roof side panel inner 8 are joined to each other, the roof side panel inner 8 is connected to the upper edge 7 of the quarter panel inner 7.
a, and is welded such that the lower end 8a overlaps the side of the part to which the side bracket 1 is attached.

According to the structure of the upper back portion A having the above-described structure, since the joining portion between the upper back panel member 2 and the side bracket 1 has a closed cross-sectional structure, the strength of this portion is extremely large. Becomes For this reason, the first bracket 11 and the second bracket 12 constituting the side bracket 1 can be formed by relatively thin members, so that their weight can be reduced. Particularly, in the present embodiment, since the roof side panel inner 8 is overlapped and joined to the portion of the quarter panel inner 7 where the side bracket 1 is attached, the portion where the side bracket 1 is provided. And the supporting strength thereof can be further increased. Therefore, the side bracket 1
In addition, as means for increasing the strength of the joint between the side bracket 1 and the upper back panel member 2, the necessity of welding a large number of reinforcements to the quarter panel inner 7 is eliminated or reduced. Can be facilitated.

The retractor 5 for the rear seat belt
Can be efficiently accommodated in the concave portion 14 of the side bracket 1 so that, for example, in order to secure a mounting space for the retractor 5, it is necessary to reduce the size of the rear seat so as not to cause a problem. Can be. Since the retractor 5 is attached to the side bracket 1 whose rigidity has been increased by the joining effect with the upper back panel member 2, the support strength of the retractor 5 can be sufficiently increased. Furthermore, the bracket 4 provided with the lock striker 40 also
Since it is attached to the side bracket 1 having increased rigidity, its supporting strength can be sufficiently increased. Further, since the bracket 4 is mounted on the upper surface of the horizontal plate portion 11a forming the concave portion 14 for accommodating the retractor 5, the bracket 4 can be mounted with a good space efficiency. It is also possible to appropriately prevent the vehicle from becoming bulky in the vehicle interior.

The specific structure of each part of the structure of the upper back portion of the vehicle according to the present invention is not limited to the above-described embodiment, and various design changes can be made.

In the above embodiment, the side bracket is
Although the first bracket and the second bracket formed separately from each other are combined, the present invention is not limited to this. In the present invention, for example, the upper back panel member may be supported by one bracket member configured by integrating the first bracket 11 and the second bracket 12 described in the above embodiment. I don't care.

In the above-described embodiment, the upper back panel member is formed in advance in the longitudinal direction with a closed cross-sectional structure, so that when the upper back panel member is joined to the side bracket having the non-closed cross-sectional structure, the upper back panel member is closed. Although the joining portion has a closed cross-sectional structure, the present invention is not limited to this. In the present invention, by configuring the side brackets in advance to have a closed cross-sectional structure, when the upper back panel members having the non-closed cross-sectional structure are bonded to the side brackets, the connecting portions thereof have a closed cross-sectional structure. It doesn't matter.

[Brief description of the drawings]

FIG. 1 is a perspective view of an essential part showing an example of a structure of an upper back portion of an automobile according to the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an exploded perspective view of a main part of a structure of an upper back portion of the automobile shown in FIG. 1;

FIG. 4 is a perspective view of a main part in a state where an upper back panel member is supported by a side bracket in the configuration shown in FIG. 3;

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is an exploded side view showing an example of each of a quarter panel inner and a roof side panel inner.

[Explanation of symbols]

 Reference Signs List A Upper back part 1 Side bracket 1A First bracket piece 1B Second bracket piece 2 Upper back panel member 4 Bracket 5 Retractor 6 Seat back 7 Quarter panel inner 7a Upper edge 8 Roof side panel inner 11 First bracket 12 second bracket 14 recess 20 upper back panel main body 21 reinforcing panel 40 lock striker

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshitaka Sawada 2-1-1 Taoyuan, Ikeda-shi, Osaka Daihatsu Kogyo Co., Ltd.

Claims (3)

[Claims] 1. An upper back panel comprising: a side bracket attached to the quarter panel inner so as to protrude inward in the vehicle width direction from the quarter panel inner; and an upper back panel member extending in the vehicle width direction. A longitudinal end portion of the member is a structure of an upper back portion of the vehicle, which is supported by the side bracket. The side bracket has a recess capable of accommodating a retractor of a rear seat belt at a front portion of the side bracket. A first bracket piece having a bent cross-sectional shape to be formed, and a second bracket piece located below the first bracket piece, and the upper back panel member includes an upper back panel. The main body and the panel for reinforcement are formed by overlapping and joining in the vertical direction of their thickness, and The upper back panel body and the reinforcing panel of the upper back panel member are connected to the first bracket piece and the second bracket piece.
The upper back portion of an automobile is characterized in that the upper and lower bracket portions are overlapped and joined to each other, and these joined portions have a closed cross-sectional structure. 2. A lower end of the roof side panel inner provided above the quarter panel inner extends below an upper end edge of the quarter panel inner, and is connected to a lower end of the roof side panel inner. 2. The structure of the upper back portion of the automobile according to claim 1, wherein a part of the quarter panel inner on which the side bracket is provided is overlapped and joined to each other. 3. The structure of an upper back portion of an automobile according to claim 1, wherein a bracket having a lock striker for fixing and holding a seat back of a rear seat is attached to the side bracket.