JPH07267145A - Automotive rear car body structure - Google Patents

Abstract

PURPOSE:To reduce the weight of an automotive body and prevent a state from piercing through a rear sheet by a method wherein at the time of a rear- end collision, a state arranged in a trunk is prevented from being linearly moved toward the automotive front body. CONSTITUTION:The front end part 14b of a stay 14 is mounted on a panel 20 through a bolt sheared and ruptured by a high load. The two end parts, of a rear deck panel 26 and a package junction 28 with which a closed section is surrounded are curved in such a manner to gradually change in the frontward direction of the vehicle toward the car body side. An opening part 30 positioned in front of the stay 14 is formed in the rear flank 28b of the recessed part 28a of the package junction 28 and the inner surface of the front flank 28c of the recessed part 28a is used as a guide member 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear vehicle body structure in which a stay for giving an opening assisting force to a trunk lid is provided in a trunk of an automobile in a front-rear direction.

[0002]

2. Description of the Related Art Generally, an automobile with an engine mounted in front has a trunk provided at a rear portion thereof so that luggage can be stored in the trunk. In the trunk, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-7582 (B62D 25/12), a stay is provided between the trunk lid and the vehicle body, and when the trunk lid is slightly lifted when the trunk is opened, the stay is By providing an opening assisting force, this trunk lid opening operation can be performed easily and conveniently.

[0003]

However, in such a conventional vehicle body structure for a rear part of a vehicle, the stays mounted in the trunk are arranged so as to be oriented substantially in the front-rear direction with the trunk lid closed. Therefore, when the vehicle collides from the rear, the front end of the stay is considered to move forward due to the deformation of the vehicle body, so that the front end of the stay does not move.

Specifically, by increasing the mounting strength of the front end of the stay mounted on the vehicle body side, when a load from the rear acts on the stay, the stay buckles and projects forward. Can be prevented,
In this case, since it is necessary to increase the rigidity of the mounting portion of the stay, the number of constituent parts of the mounting portion is increased, and as a result, there is a problem that the weight is increased.

In view of such conventional problems, the present invention achieves weight reduction of the vehicle body by preventing the stay provided in the trunk from moving straight ahead of the vehicle at the time of a rear collision. At the same time, it is an object of the present invention to provide a rear body structure of an automobile capable of preventing the stay from breaking through the rear seat.

[0006]

In order to achieve such an object, the present invention has one end rotatably attached to a vehicle body side and the other end rotatably attached to a trunk lid. In the rear body structure of the vehicle, which is provided with a stay for giving a release assisting force to the side of the vehicle, and the stay is oriented substantially in the front-rear direction in the closed state of the trunk lid, When the stay is moved forward, it is configured by providing a guide member that moves the front end portion of the stay while largely inclining in a direction excluding the front of the vehicle.

The guide member guides the front end of the stay to the outside of the vehicle.

Further, it is desirable that the guide member guides the front end portion of the stay into a space formed by the rear fender panel and the quarter panel.

Furthermore, it is desirable to provide the guide member at a package junction forming a closed cross section with the rear deck panel below the rear window.

Further, it is preferable that a slide piece for smoothly moving along the guide member is provided at a front end portion of the stay.

[0011]

According to the structure of the rear body of the automobile of the present invention having the above construction, the front end of the stay of the trunk lid is moved toward the front of the vehicle while inclining the front end of the stay to a direction other than the front of the vehicle. Since the guide member is provided,
When the stay is moved to the front of the vehicle due to a rear collision of the automobile, the guide member can prevent the front end of the stay from moving to the front of the vehicle, and the portion where the stay is attached to the vehicle body. It is not necessary to particularly increase the rigidity of the vehicle body and it is possible to prevent the vehicle body weight from being increased.

Further, the guide member is configured to guide the front end portion of the stay toward the outside of the vehicle,
Since it is possible to prevent the stay from moving forward and interfering with an existing object in the vehicle compartment, it is possible to improve safety in a rear-end collision.

Further, the guide member guides the front end portion of the stay into the space formed by the rear fender panel and the quarter panel, so that when the stay moves rearward, the front end portion of the stay is moved to the rear fender panel. Since the vehicle and the quarter panel can be separated from the vehicle compartment, the safety can be further improved.

Furthermore, by providing the guide member on the package junction which forms a closed cross section with the rear deck panel at the lower part of the rear window, the rigidity of the package junction is increased by the closed cross section structure, so that the stay moves forward. It is possible to reliably guide the stay front end portion without being deformed by the impact at the time of doing.

Further, by providing a sliding piece for smoothly moving along the guide member at the front end of the stay, the front end of the stay moving forward can be smoothly guided, and the vehicle of this stay can be guided. It is possible to surely perform the inclination in the direction excluding the front.

[0016]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 to 5 show an embodiment of a rear body structure of an automobile according to the present invention, FIG. 1 is a perspective view of a main part, FIG. 2 is an enlarged cross-sectional view of the main part taken along the line AA in FIG. Three
1 is an enlarged cross-sectional view of an essential part taken along line BB in FIG. 1, FIG. 4 is a plan view of an essential part showing a mounted state of a stay, and FIG. 5 is an expanded cross-sectional view of an essential part showing a mounted state of a front end portion of the stay. .

That is, in the rear vehicle body structure of this embodiment, a trunk 12 is provided at the rear end of the vehicle body 10 as shown in FIG. 4, and the trunk 12 is opened and closed by a trunk lid 12a. The trunk lid 12a is rotatably supported by a hinge (not shown) provided at the front end of the vehicle, and a pair of stays 14, 14 is provided on both sides of the vehicle body between the trunk lid 12a and the vehicle body 10.

The stays 14, 14 have a damper function and a biasing function in the extension direction. A rear end portion 14a of the stay 14 is rotatably attached to the trunk lid 12a via a bracket 16 and also has a front end portion 14a.
b is rotatably attached to the attachment panel 20 via the bracket 18, and the stays 14 and 14 are attached in the vehicle front-rear direction with the trunk lid 12a closed. Then, when the trunk lock of the trunk 12 is released and the trunk lid 12a is slightly lifted, it is automatically opened by the biasing force of the stay 14, and at the time of this release, the damper function of the stay 14 opens the trunk lid 12a. Is done slowly. Further, the bracket 18 has bolts 22, nuts 2 as shown in FIG.
The bolt 22 is coupled to the mounting panel 20 via 2a so that the bolt 22 is sheared and broken when a large load is applied from the rear due to a rear collision or the like.

A rear deck panel 26 and a package junction 28, which are located below the rear window 24, are located in front of the stay 14, and the rear deck panel 26 is formed with a convex portion 26a protruding upward. At the same time, the package junction 28 is formed with recesses 28a recessed downward, and the protrusions 26a and the recesses 28a are formed.
A closed cross section is formed by butt-joining and coupling each other. The mounting panel 20 is welded and fixed to the lower side of the package junction 28.

Here, in this embodiment, the rear deck panel 26 and the package junction 2 which are connected to each other are provided.
As shown in FIG. 1, both ends of 8 are curved so as to gradually change in the vehicle front direction as they go to the side of the vehicle body. An opening 30 is formed on the rear side surface 28b of the recess 28a of the package junction 28 at the front portion of the stay 14, and the recess 28 is formed.
The inner surface of the front side surface 28c of a is used as the guide member 32. Further, at the front end portion 14b of the stay 14,
A sliding piece 34 whose tip is inclined in the same direction as the guide member 32 is attached.

In the rear vehicle body structure of the automobile of this embodiment having the above structure, the front end of the stay 14 of the trunk 12 is attached to the mounting panel 20 on the vehicle body side through the bracket 18 and has a large load at the time of collision. It is attached via a bolt 22 and a nut 22a that are sheared and broken by an input. Therefore, when the rear part of the vehicle body is largely deformed due to a rear collision, for example, when the vehicle is deformed to the L line shown by hatching as shown in FIG. 3, the stay 14 is pushed with a large load and moves to the front of the vehicle body. Then, the front end of the stay 14 moves to the front of the vehicle body due to shear failure of the bolt 22, enters through the opening 30 formed in the rear side surface 28b of the package junction 28, and the sliding piece 34 is provided on the front side surface 28c. The guide member 32.

When the sliding piece 34 comes into contact with the guide member 32 and the stay 14 further moves forward, the sliding piece 34 smoothly moves along the guide member 32 to the outside of the vehicle body as indicated by an arrow X. Then, as shown in FIG. 3, stay 1
4 is greatly inclined. For this reason, it is not necessary to form a large rigid portion in the mounting portion of the stay 14, and it is possible to prevent an increase in vehicle weight.

When the sliding piece 34 of the stay 14 is guided to the outside of the vehicle body, the front end of the stay 14 is formed by the quarter panel 36 and the rear fender 38, which are joined to the ends of the package junction 28. It is designed to be guided to the space S between them. Therefore, since the front end 14b of the stay 14 is guided to the space S in this manner, the front end 14b is hidden in the panel, so that the safety at the time of a rear collision can be significantly improved. it can.

Further, in this embodiment, the guide member 32 is provided on the package junction 28 which forms a closed cross section with the rear deck panel 26 below the rear window 24, and the rigidity of the package junction 28 is increased by the closed cross section structure. Therefore, the front end portion 14b of the stay 14 can be reliably guided in the direction away from the front of the vehicle without being deformed by the impact when the stay 14 moves forward and collides.

In the above embodiment, the stay 1 is shown in FIG.
4, the front end of the bolt 4 is sheared and destroyed, and the bolt 22 and nut 2
Although the case where the stay 14 is attached via the ball 2a is disclosed, the present invention is not limited to this, and when the stay 14 is attached to the attachment panel 20 via the ball joint 50 as shown in FIG. Ball 50a
The structure may be broken from the part, or as shown in FIG. 7, the structure is such that the pin 52 is attached to the mounting panel 20 via the bracket 18a by caulking and the pin 52 is sheared and broken by a large load input. Good.

FIG. 8 shows another embodiment, in which the same components as those in the above-mentioned embodiment are designated by the same reference numerals, and a duplicate description will be omitted. That is, in this embodiment, the front end portion 14 of the stay 14 to which the sliding piece 34 is attached is attached to the mounting panel 20 on the side of the sliding piece 34, while the front end portion 14b of the stay 14 faces the package. Junction 2
The outside of the rear side surface 28b of 8 is curved so as to gradually change to the front of the vehicle body from the upper side to the lower side, and the rear side surface 28b is used as the guide member 32a.

Therefore, in this embodiment, when the stay 14 moves forward due to a rearward collision, the front end portion 14b of the stay 14 comes into contact with the guide member 32a after the sliding piece 34 abuts on the guide member 32a. The stay 14 is guided downwardly to move downward and the front end 14b of the stay 14 is largely inclined downward.

FIG. 9 and FIG. 10 show other embodiments, and the same components as those of the above-mentioned embodiments are designated by the same reference numerals and the duplicate description will be omitted. That is, in this embodiment, the package junction 28 is formed into a flat plate shape having a bent surface 28d by bending the front end portion downward, and the rear deck in which the convex portion 26a is formed on the upper surface of the rear end portion of the package junction 28. The panel 26 is fixed to form a closed cross section.

The bending surface 28d is formed so as to gradually change to the front of the vehicle body as it goes inward from both sides of the vehicle body, and the guide plate 32b is fixed at a predetermined distance from the bending surface 28d. The bent surface 28
A closed cross section is formed between d and the guide plate 32b.

Therefore, in this embodiment, when the stay 14 moves forward due to a rear collision, the front end portion 14b of the stay 14 has the sliding piece 34 abutting against the guide member 32b, and then the guide member 32a. Is guided to move to the rear of the vehicle. Therefore, the stay 14 has the front end portion 1
4b is largely tilted inward of the vehicle body, so that it is possible to reliably prevent the stay 14 from entering the embodiment.

Although the present invention has been described by taking the stay 14 having the damper function and the urging function as an example in each of the above embodiments, the stay has the damper function and the urging function separately. Of course, the present invention can also be applied.

[0032]

As described above, according to the first aspect of the present invention.
In the rear body structure of the vehicle shown in Fig. 1, a guide member is provided on the front side of the stay of the trunk lid, and when a large load is applied to the stay from the rear, the front end of the stay is removed from the front of the vehicle. The guide member prevents the front end portion of the stay from moving to the front of the vehicle when the vehicle is collided rearward and the stay moves to the front of the vehicle. can do. Further, it is not necessary to increase the rigidity of the portion where the stay is attached to the vehicle body, and it is possible to prevent the weight of the vehicle body from increasing.

According to the second aspect of the present invention, since the front end portion of the stay is guided to the outside of the vehicle by the guide member, the safety can be further improved. .

Further, according to claim 3 of the present invention, the guide member guides the front end portion of the stay into the space formed by the rear fender panel and the quarter panel. Since the front end portion can be protected by the rear fender panel and the quarter panel when it is moved backward, the safety can be further improved.

Further, according to claim 4 of the present invention,
Since the guide member is provided on the package junction that forms a closed cross section with the rear deck panel under the rear window, the rigidity of the package junction is increased due to the closed cross section structure, so that even if the stay moves forward, The stay front end can be reliably guided without being deformed.

Further, according to the fifth aspect of the present invention, since the sliding piece for smoothly moving along the guide member is provided at the front end portion of the stay, the front end portion of the stay moving forward is fixed. There are various excellent effects that the guide can be smoothly performed and the stay can be surely tilted in the direction other than the front of the vehicle.

[Brief description of drawings]

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

FIG. 2 is an enlarged cross-sectional view of a main part taken along the line AA in FIG.

3 is an enlarged cross-sectional view of a main part taken along the line BB in FIG.

FIG. 4 is a plan view of a main part of a stay attached state showing an embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of a main portion of a stay at a front end portion of the stay according to an embodiment of the present invention in a mounted state.

FIG. 6 is an enlarged cross-sectional view of an essential part of a stay at the front end of the stay, showing another embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view of an essential part of a front end portion of a stay in a mounted state showing another embodiment of the present invention.

FIG. 8 is a perspective view of an essential part showing another embodiment of the present invention.

FIG. 9 is a perspective view of a main part showing another embodiment of the present invention.

FIG. 10 is a plan view of an essential part showing another embodiment of the present invention.

[Explanation of symbols]

10 vehicle body 12 trunk 12a trunk lid 14 stay 20 mounting panel 26 rear deck panel 28 package junction 32, 32a,
32b Guide member 34 Sliding piece 36 Quarter panel 38 Rear fender

Claims (5)

[Claims] 1. A stay having one end rotatably attached to a vehicle body side and the other end rotatably attached to a trunk lid, and a stay for giving an opening assisting force to the trunk lid is provided on a side of the vehicle, In the rear body structure of an automobile in which the stay is oriented substantially in the front-rear direction with the trunk lid closed, the front end portion of the stay is moved to the front side of the stay when the stay is moved forward. A rear body structure of an automobile, characterized in that a guide member for moving the vehicle in a direction other than the front of the vehicle while being greatly inclined is provided. 2. The rear vehicle body structure according to claim 1, wherein the guide member guides the front end of the stay toward the outside of the vehicle. 3. The rear vehicle body structure according to claim 2, wherein a front end portion of the stay is guided into a space formed by the rear fender panel and the quarter panel. 4. The rear vehicle body structure according to claim 1, wherein the guide member is provided at a package junction that forms a closed cross section with a rear deck panel below a rear window. 5. The rear vehicle body structure according to claim 1, wherein a sliding piece that smoothly moves along the guide member is provided at a front end portion of the stay.