JP2553401Y2 - Car side body structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure in which a suspension tower is installed on an inner wall of a rear pillar inner panel.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Application Laid-Open No. 63-171287.
As shown in the publication, the support rigidity of the suspension tower installed on the inner wall of the rear pillar inner panel is provided by providing a box-shaped bulging portion on the rear pillar inner panel constituting the rear side panel or installing a reinforcing member. To prevent the suspension tower from falling inward due to the load input from the suspension damper.

[0003]

When a box-shaped bulge or reinforcing member is provided as described above, the lower portion of the rear pillar inner panel on which the suspension tower is installed can be reinforced. The upper part cannot be reinforced. Therefore, in order to support the load applied when opening and closing the back door and the like disposed at the rear of the rear pillar, it is necessary to secure the supporting rigidity by increasing the thickness of the rear pillar itself.

It is conceivable to reinforce the upper portion of the rear pillar by protruding an extension extending above the rear pillar at the upper end of the reinforcing member, but in this case, the total length of the reinforcing member is increased. Therefore, there is a problem that the manufacturing cost increases. Particularly, in a vehicle in which the upper portion of the rear pillar is inclined forward at a steep angle, the connecting portion between the main body portion of the reinforcing member located at the lower portion of the rear pillar and the extension portion connected to the upper end portion is sharply bent. There is a problem that it is necessary to bend and the shape is extremely complicated, so that it is difficult to manufacture.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can prevent a suspension tower from falling down by a load inputted from a suspension damper with a simple structure, and can also prevent a back-up. It is an object of the present invention to provide a side body structure of an automobile capable of effectively supporting a load input to an upper portion of a rear pillar when a door is opened or closed.

[0006]

According to the first aspect of the present invention,
A side body structure of an automobile in which a suspension tower is installed on an inner wall portion of a rear pillar inner panel and a suspension reinforcement is arranged on an outer wall portion of the rear inner panel at a position facing the installation portion of the suspension tower. Wherein the suspension reinforcement is constituted by a lower reinforcement disposed below the rear pillar inner panel and an upper reinforcement disposed above the lower reinforcement, and an upper end joint of the upper reinforcement. By joining the lower reinforcement to the rear pillar inner panel, a first closed section is formed by the upper reinforcement and the rear pillar inner panel, and the upper joint of the lower reinforcement is formed below the upper reinforcement. On the wall At the same time, the lower end joint of the lower reinforcement is joined to the rear pillar inner panel to form a second closed section by the lower wall of the upper reinforcement, the lower reinforcement, and the rear pillar inner panel, The upper portion of the second closed section and the lower portion of the first closed section are arranged so as to overlap.

According to a second aspect of the present invention, in an automobile side body structure in which an upper portion of a rear pillar inner panel is bent inward of a vehicle body, an upper portion of an upper reinforcement is connected to an upper portion of the rear pillar inner panel. , And a first closed section formed by the upper reinforcement and the rear pillar inner panel is disposed above the suspension tower.

According to a third aspect of the present invention, in the vehicle side body structure according to the first or second aspect, a back door is provided behind the rear pillar, and the back door is inputted when the back door is opened and closed. The load is supported by a suspension reinforcement composed of the upper reinforcement and the lower reinforcement.

[0009]

According to the first aspect of the present invention, the first closed section formed by the upper reinforcement and the rear pillar inner panel, the lower wall of the upper reinforcement, the lower reinforcement and the rear pillar inner panel. As a result, the support rigidity of the upper portion of the rear pillar against the load input when the back door is opened or closed is ensured, and the input is input from the suspension damper to the suspension tower. The supporting rigidity of the lower portion of the rear pillar against the load is sufficiently ensured.

[0010] According to the invention of claim 2,
By bending the upper portion of the rear pillar inner panel inward of the vehicle body, the bent portion is easily deformed in response to the load input from the suspension tower to the rear pillar. It is effectively suppressed by the first closed section.

According to the third aspect of the present invention, when the back door is opened and closed, the load applied to the upper portion of the rear pillar is effectively reduced by the suspension reinforcement including the upper reinforcement and the lower reinforcement. It is supported and deformation of the rear wheel is effectively suppressed.

[0012]

1 to 3 show an embodiment of a side body structure according to the present invention located at the rear of an automobile. The side body has a rear pillar outer panel 2 and a rear pillar inner panel 3 constituting the rear pillar 1 and a wheel house inner panel 4 disposed inside the rear pillar outer panel 2 and the rear pillar inner panel 3. , A suspension tower 7 composed of a tubular part 5 and a top plate 6
Is protruding.

On the outer wall surface of the rear pillar inner panel 3, that is, on the outer wall surface of the vehicle, a suspension reinforcement 10 composed of a lower reinforcement 8 and an upper reinforcement 9 is provided at a position facing the installation portion of the suspension tower 7. Is installed.

As shown in FIG. 4, the upper reinforcement 9 has a substantially U-shaped cross section, and flange joints 9a formed on both left and right sides thereof are joined to the outer wall surface of the rear pillar inner panel 3. Have been. As shown in FIG. 2, an upper end joint 9b of the upper reinforcement 9 is sandwiched and integrally joined by flange joints 2a, 3a of the rear pillar outer panel 2 and the rear pillar inner panel 3. In addition, upper reinforcement 9
Is joined to the outer wall surface of the rear pillar inner panel 3 by means such as spot welding within a range from the upper end joint of the suspension tower 7 to the step 1a of the rear pillar 1 located thereabove. A portion 9c is formed.

The above upper reinforcement 9
And the rear pillar inner panel 3, a first closed section 11 extending above the suspension tower 7 is formed. That is, as shown in FIG. 2, the upper part of the rear pillar inner panel 3 is bent so as to be inclined inward of the vehicle body, and the upper part of the upper reinforcement 9 of the suspension reinforcement 10 is correspondingly mounted on the vehicle body. Is bent inward so that the first closed section 11 formed by the upper reinforcement 9 and the rear pillar inner panel 3 is located above the installation portion of the suspension tower 7. ing.

The lower reinforcement 8 has an upper joining portion 8a joined to a lower outer wall surface of the upper reinforcement 9, and a lower joining portion 8b has a lower end portion of the rear pillar inner panel 3 constituting a wheel house outer panel. 3b is formed of a member having a substantially U-shaped cross section, and a work hole 12 for spot welding is formed on a wall surface thereof at a position facing the lower end joint 9c of the upper reinforcement 9 and the upper end joint of the suspension tower 7. 13 are formed. The lower wall 9d of the upper reinforcement 9, that is, the wall of the upper reinforcement 9 located below the upper joint 8a of the lower reinforcement 8, the lower reinforcement 8, and the rear pillar inner panel 3 Form a second closed section 14, the upper part of the second closed section 14 and the first closed section 11
Are arranged in a state where they overlap with the lower part.

As described above, the suspension reinforcement 10 including the lower reinforcement 8 and the upper reinforcement 9 is disposed at a position facing the installation portion of the suspension tower 7, and the upper reinforcement 9 and the upper reinforcement 9 are disposed. Since the first closed cross section 11 is formed on the upper portion of the rear pillar 1 by the rear pillar inner panel 3, the upper portion of the rear pillar 1 to which a load is input when an opening / closing operation of a back door (not shown) is effected by the first closed cross section 11. Rear pillar 1 for the above load
Can sufficiently secure the supporting strength.

Further, in the side body structure of the automobile in which the upper portion of the rear pillar inner panel 3 is bent inward of the vehicle body as described above, the upper portion of the upper reinforcement 9 constituting the suspension reinforcement 10 is provided. Along the upper part of the rear panel inner 3, it is bent inward of the vehicle body, and the upper reinforcement 9 is bent.
When the first closed section 11 formed by the rear pillar inner panel 3 is disposed above the suspension tower 7, the bent portion of the rear pillar inner panel 3 is effectively formed by the first closed section 11. The suspension tower 7 can be reinforced.
It is possible to reliably prevent the occurrence of a situation in which the bent portion is deformed in accordance with the load input to and the degree of bending is further increased.

The upper part of the lower reinforcement 8 and the lower part of the upper reinforcement 9 are wrapped, and the lower wall part 9 of the upper reinforcement 9 is wrapped.
d, the lower reinforcement 8 and the rear pillar inner panel 3 form the second closed section 14 at the lower part of the rear pillar 1, so that the second closed section 14 is input from the suspension damper (not shown) to the lower part of the rear pillar 1 via the suspension tower 7. And the suspension tower 7 can effectively be prevented from falling down in response to the load.

That is, since the upper portion of the second closed section 14 and the upper portion of the first closed section 11 are disposed so as to overlap with each other, the load applied to the upper end of the suspension tower 7 from the suspension damper is supported. Since the three support members of the rear pillar inner panel 3, the lower wall 9d of the upper reinforcement 9, and the upper part of the lower reinforcement 8 are provided in the lower part, the input from the suspension damper is performed. Thus, it is possible to sufficiently secure support rigidity against a load. Further, the load input from the suspension tower 7 to the rear pillar inner panel 3 is transmitted to the upper part of the vehicle body via the upper reinforcement 9 and also transmitted to the lower part of the vehicle body via the lower reinforcement 8. In addition, the load can be effectively dispersed and dispersed over a wide range.

Further, the lower reinforcement 8
Since the upper reinforcement 9 and the upper reinforcement 9 are formed separately, it is possible to simplify the shape of the lower reinforcement 8 installed along the lower portion of the rear pillar inner panel 3 that is erected substantially vertically. In addition, the upper reinforcement 9 is installed above the bent portion of the rear pillar 1 that is inclined forward of the vehicle body from the upper end of the installation portion of the lower reinforcement 8, thereby complicating the shape of the upper reinforcement 9. Without this, the upper part of the rear pillar 1 can be effectively reinforced.

Therefore, even when the upper portion of the rear pillar 1 is bent at a steep angle toward the front side of the vehicle body, the entire area of the rear pillar 1 is effectively reinforced by the suspension reinforcement 10 having a simple shape, and the back door is provided. And the support rigidity against the load input to the upper portion of the rear pillar 1 during the opening and closing operation of the vehicle can be sufficiently secured.
Sufficient support stiffness against the load input from the suspension tower 7 to the lower part of the rear pillar 1 can be ensured.

[0023]

As described above, according to the present invention, a suspension reinforcement consisting of a lower reinforcement and an upper reinforcement is disposed at a position facing the installation portion of the suspension tower, and the upper reinforcement is provided. A first closed section is formed at the upper part of the rear pillar by the reinforcement and the rear pillar inner panel, and a second closed section is formed at the lower part of the rear pillar by the lower wall part of the upper reinforcement and the lower reinforcement and the rear pillar inner panel. A cross section is formed, and the upper portion of the second closed cross section and the lower portion of the first closed cross section are overlapped with each other, so that sufficient support rigidity against the load input to the upper portion of the rear pillar at the time of opening and closing the back door or the like is ensured. And suspension suspension from the suspension damper. Effectively support the load to be input to the lower portion of the rear pillar through the tower, it is possible to reliably prevent the inward fall is the suspension tower in accordance with the load.

Also, the lower reinforcement described above,
Because the upper reinforcement is formed separately from the upper part, even when the upper part of the rear pillar is bent to the front side of the vehicle body at a steep angle, the upper reinforcement at the predetermined angle is attached to the upper end of the lower reinforcement. By installing the reinforcement, the entire area of the rear pillar can be effectively reinforced without complicating the shape of the upper reinforcement and the lower reinforcement, and the load and suspension acting upon opening and closing the above back door The effect of improving the support rigidity against the load input to the tower and the effect of simplifying the configuration of the suspension reinforcement can be achieved at the same time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a side body structure of an automobile according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view showing a configuration of a rear portion of the vehicle body.

FIG. 4 is a sectional view taken along line BB of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear pillar 3 Rear pillar inner panel 7 Suspension tower 8 Lower reinforcement 9 Upper reinforcement 10 Suspension reinforcement 11 First closed section 14 Second closed section

Claims (3)

(57) [Scope of request for utility model registration] 1. An automobile having a suspension tower installed on an inner wall portion of a rear pillar inner panel and a suspension reinforcement disposed on an outer wall portion of the rear inner panel at a position facing the installation portion of the suspension tower. Wherein the suspension reinforcement is constituted by a lower reinforcement installed below the rear pillar inner panel and an upper reinforcement disposed above the lower reinforcement. The upper and lower joints of the rear pillar inner panel
The upper reinforcement member
And the rear pillar inner panel form the first closed section.
With the upper joint of the lower reinforcement
Along with joining to the lower wall of the part reinforcement,
Rear pillar joint at lower end of lower reinforcement
By bonding to the upper panel
Lower wall and lower reinforcement and rear
Forming a second closed cross section with the pillar inner panel;
The upper part of the second closed section and the lower part of the first closed section.
A side body structure of an automobile, which is arranged so as to overlap . 2. A vehicle side body structure in which an upper portion of a rear pillar inner panel is bent inward of the vehicle body,
The upper part of the upper reinforcement is
A first closed section formed by the upper reinforcement and the rear pillar inner panel is disposed above the suspension tower, while being bent inwardly of the vehicle body along the upper part of the vehicle body; The vehicle body structure according to claim 1. (3) A back door is located behind the rear pillar
The load input when opening and closing the back door
Upper Reinforcement and Lower Reinforcement
Suspension reinforcement
Claims characterized in that it is configured to support
3. The side body structure of an automobile according to claim 1.