JPH0513669Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to, for example, the rear structure of an automobile body, and particularly relates to a reinforcing structure thereof.

[Conventional technology]

Conventionally, for example, in the rear body structure of an automobile, as shown in FIG. 8, a rear end 10 of the outer panel 1 of a closed section rocker panel 3 formed by an outer panel 1, a rocker reinforcement 2, and an inner panel (not shown) is constructed. It is joined to a quarter panel 4, and this quarter panel 4 is hollowed out in the shape of a wheel arch along a wheel house 5, and this wheel arch shaped portion 41 is connected to the wheel house 5.
is joined to the wheel house outer 6 forming the wheel house outer 6,
This wheel house outer 6 is joined to a wheel house inner 7 forming the wheel house 5, and this wheel house inner 7 is joined to a lower end 80 of the roof side inner 8.

Here, as prior art showing such a rear body structure, for example, Utility Model Application Publication No. 127178/1983 (Utility Application No. 55-27020) and Publication No. 18875/1987 (Utility Application No. 18875) -110919).

However, in the case of the rear body structure shown in FIG. 8 and Utility Model Application Publications No. 56-127178 and No. 60-18875, from the rocker panel 3 to the wheel arch-shaped portion 41 of the quarter panel 4, that is, the roof side inner The rocker panel 3 and the quarter panel 4 are not connected by a continuous member up to the wheel house 5 at the lower end 80, and the rocker panel 3 and the quarter panel 4 are connected at the rear end 10 of the rocker panel 3.
Since only the lower front end 42 of the quarter panel 4 is joined to the lower front end 42 of the quarter panel 4, for example, when a load such as vibration stress is applied, vibration stress concentrates on this joint, and this joint tends to become a node in a deformation mode. As a result, the joint may be deformed.

Therefore, in order to eliminate such problems, for example, Utility Model Application Publication No. 100673 (1983)
196495), in order to improve the strength of the rear part of the car body, a roughly L-shaped belt line reinforcement that is joined to each panel that makes up the rear part of the car body to form a closed cross section is installed on the wheels. There is a structure in which it extends forward and downward along the house, and its front end is joined to the upper wall surface of the side sill outer that constitutes the side sill.

[The problem that the idea aims to solve]

However, in the case of the vehicle body rear structure disclosed in the above-mentioned Japanese Utility Model Publication No. 59-100673, the closed section formed by each panel and the belt line reinforcement ends at the upper wall surface of the side sill outer. Since it is connected in a so-called separate state from the closed cross section of the side sill itself, when a load such as vibration stress is applied to the rear of the vehicle body, it Loads such as vibration stress are only transmitted to the upper wall surface of the side sill outer to which this belt line reinforcement is joined, and the load such as vibration stress is transmitted to this upper wall surface and the joint between the upper wall surface and the belt line reinforcement. Stress will be concentrated and there is a risk that this joint will be deformed.

That is, the entire side sill, particularly the entire closed cross section of the side sill, cannot receive the load such as the vibration stress.

Therefore, in order to improve strength, belt line reinforcement is installed and joined to form a closed cross section, but as a result, the load such as vibration stress is only partially received, so the strength improvement function is not effective. can't fulfill their duties adequately.

Therefore, the problem of this invention is to efficiently transmit the load such as vibration stress applied to the wheel house etc. at the rear of the vehicle body to the closed cross section of the rocker panel, so that the load is received by the entire closed cross section.

[Means to solve the problem]

Therefore, in this invention, the rear end of the outer panel of a closed-section rocker panel formed by an outer panel, an inner panel, and a rocker reinforcement is joined to a quarter panel, and this quarter panel is hollowed out in the shape of a wheel arch along the wheel house.
A wheel arch-shaped portion of this quarter panel is joined to a wheel house outer forming the wheel house, this wheel house outer is joined to a wheel house inner, and this wheel house inner is joined to a lower end of the roof side inner, A reinforcing member that is joined to the wheel house inner that is joined to the lower end of the roof side inner to form a closed cross section is extended forward and downward along the wheel arch-shaped portion and inserted into the closed cross section of the rocker panel. , in a vehicle rear structure in which the upper and lower flanges are joined to the upper and lower flanges of the outer panel of the rocker panel, and the front end thereof is joined to the rear end of the rocker reinforcing hose, the reinforcing member is attached on the inner wheel house along the longitudinal direction of the reinforcing member. A convex bulge is formed to form a box-shaped closed section that continues from the wheel house to the rock panel, and the box-shaped closed cross section due to the bulge of the reinforcing member is continuous from the wheel house to the rock panel. It was designed to be configured as follows.

[Effect]

According to the above-mentioned means, by configuring the box-shaped closed cross section of the reinforcing member continuously from the wheel house to the closed cross section of the rocker panel, loads such as vibration stress applied to the wheel house etc. at the rear of the vehicle body can be absorbed by the reinforcing member. The transmission is efficiently transmitted to the closed cross section of the Rocker panel through the box-shaped closed cross section, and can be received by the entire closed cross section, which improves the rigidity of the rear part of the vehicle body. And there is no stress concentration on each joint, etc.
These parts and joints can be prevented from becoming nodes in the deformation mode, and their deformation can be prevented.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

The same figures from FIG. 1 to FIG. 7 show one embodiment of this invention, and as can be seen from FIGS.
and the outer panel 1 in the closed cross-section rocker panel 3 formed of an inner panel (not shown).
The rear end 10 of is joined to the quarter panel 4.

A portion 40 near the center in the vertical direction of the quarter panel 4 is scooped out into a wheel arch shape along the outer shape of the wheel house 5 formed by the wheel house outer 6 and the wheel house inner 7 to form a wheel arch-shaped portion 41. The wheel arch-shaped portion 41 of the quarter panel 4 is connected to the wheel house outer 6 of the wheel house 5.
is joined to.

The wheel house outer 6 is joined to the wheel house inner 7, and the wheel house inner 7 is joined to the lower end 80 of the roof side inner 8 extending to the wheel house 5.

Further, a reinforcing member 9 is joined to the upper surface of the wheel house inner 7 joined to the lower end 80 of the roof side inner, and forms a closed cross section together with the wheel house inner 7.

The reinforcing member 9 forming this closed cross section
extend forward and downward along the wheel arch-shaped portion 41 and are inserted into the closed section of the rocker panel 3, and are attached to the upper and lower flanges 9 of the reinforcing member 9.
2 and 93 are joined to the upper and lower flanges of the outer panel 1 forming the rocker panel 3, and the front end 91 of the reinforcing member 9 is joined to the rear end 20 of the rocker reinforcement 2.

In the vehicle body rear structure constructed by joining each member in this way, the closed section formed on the wheel house inner 7 by joining the reinforcing member 9 is aligned along the wheel arch-shaped portion 41. It is inserted into the closed section of the rocker panel 3 and made continuous with this closed section.

Specifically, as can be seen from the drawings in FIGS. 1 to 7, the reinforcing member 9, which is joined to the inner wheel house 7 to form a closed cross section and extends to the rocker panel 3, is provided with approximately the entire length in the longitudinal direction. A convex bulge 97 is formed over the entire length of the rocker panel, and the closed cross section formed by the bulge 97 is continuous with the closed cross section of the rocker panel.

That is, a bulge 97 is formed in the reinforcing member 9 so that the closed cross section of the reinforcing member 9 forms a box-shaped closed cross section by joining with other panels, and the bulging portion 97 is From wheel house inner 7 of wheel house 5 to rock panel 3,
The bulging portion 97 is formed along the longitudinal direction of the so-called reinforcing member 9 and over substantially the entire length in this longitudinal direction.
The box-shaped closed cross section is continuous from the wheel house inner 7 of the wheel house 5 to the rocker panel 3.

The front end side of the box-shaped closed section formed by the bulging portion 97 of the reinforcing member 9 is made to be continuous with the closed section of the rocker panel 3, so that the box-shaped closed cross section extends from the wheel house 5 to the rocker panel 3. It is configured to be continuous within a closed cross section.

Here, to explain in detail the joining structure between the reinforcing member 9 formed in this way and each panel, first, the bulging portion 9
The front end 91 of the reinforcing member 9 formed with 7 is joined to the rear end 20 of the rocker reinforcement of the rocker panel 3 (see FIGS. 1 and 4), and then the upper and lower flanges 92, 93 of this reinforcing member 9 are joined to the rear end 20 of the rocker reinforcement member 3. , by joining the upper and lower flanges of the outer panel 1 forming the rocker panel 3, as shown in FIG.
A box-shaped closed cross section 90 is constructed.

In this way, the front end 91 of the reinforcing member is joined to the rear end 20 of the rocker reinforcing member, and the upper and lower flanges 92, 93 of the reinforcing member are connected to the outer panel 1.
As shown in FIG. 4 and FIG.
It is configured to be continuous with its own closed cross section in a so-called closed cross section state.

Also, the wheel house inner 7 of the wheel house 5 extends from the outer panel rear end 10 of the rocker panel 3 to the lower end 80 of the roof side inner 8.
By joining the flanges 94 and 95 of the reinforcing member 9 on which the bulging portion 97 shown in FIGS. 6 and 7 is formed also to the flange portion 70 and upper surface 71 of
Reinforcement member 9 to the roof side inner lower end 80
Together with the joining of the flange 96, a box-shaped closed section 90 is formed on the wheel house inner 7 by the wheel house inner 7 and the bulge 97 of the reinforcing member 9.

By arranging and joining the reinforcing member 9 in which the bulging part 97 is formed in this way, the box-shaped closed cross section formed by the joining of the bulging part 97 of the reinforcing member 9 and each panel is shaped like a wheel. It can be constructed continuously from the house 5 to the inside of the closed section of the rocker panel 3.

That is, from the wheel house 5 at the roof side inner lower end 80 to the inside of the closed section of the rocker panel 3,
The continuous box-shaped closed section 90 formed by the bulging portion 97 of the reinforcing member 9 allows continuous connection in the closed section state.

Therefore, by configuring the box-shaped closed cross section 90 formed by the reinforcing member 9 having the bulging portion 97 continuously from the wheel house 5 to the closed cross section of the rocker panel 3, vibrations applied to the wheel house 5 etc. at the rear of the vehicle body can be reduced. Loads such as stress can be transmitted extremely efficiently to the closed cross section of the rocker panel 3 through the box-shaped closed cross section 90 of the reinforcing member 9, and the transmitted load such as vibration stress can be transmitted to the closed cross section of the rocker panel 3 through the box-shaped closed cross section 90 of the reinforcing member 9. Since the entire rear part of the vehicle body from the wheel house 5 to the rocker panel 3 at the lower end 80 of the roof side inner can be received, the rigidity of the entire rear part of the vehicle body can be greatly improved.

Moreover, as a result, loads such as the vibration stress are concentrated on the joints of each member, such as the joint 100 between the rear end 10 of the outer panel 1 forming the rocker panel 3 and the lower front end 42 of the quarter panel 4, and on each part. Therefore, together with the improvement in the rigidity of the rear part of the vehicle body, each joint and each part such as the joint 100 can be prevented from becoming a node in the deformation mode, and deformation can be prevented.

That is, even when a load such as the vibration stress is applied, the load such as the vibration stress is applied to each joint 1.
There is no concentration on 00 etc. or each part, etc.
Since the entire closed cross section of the rocker panel 3 itself can receive the support via the box-shaped closed cross section 90 formed by the reinforcing member 9 in which the bulge 97 is formed, the rigidity of the rear part of the vehicle body can be greatly improved, and the rigidity of the vehicle body can be improved. It is possible to reliably prevent deformation of the joints 100 and other parts constituting the rear part.

[Effect of idea]

As mentioned above, this idea forms a bulge in the reinforcing member to form a continuous box-shaped closed section from the wheel house to the rock panel, and the box-shaped closed section is formed from the wheel house by the bulge of the reinforcing member. It is constructed continuously within the closed cross section of the rock panel, and the load such as vibration stress applied to the wheel house at the rear of the vehicle body can be received by the entire closed cross section of the rock panel through the box-shaped closed cross section of the reinforcing member. This makes it possible to significantly improve the rigidity of the rear part of the car body, and in conjunction with this improvement in rigidity, there is no concentration of loads such as vibration stress on the joints and parts of the rear part of the car body. Also, each part can be prevented from becoming a node in the deformation mode, and the deformation can be reliably prevented.

[Brief explanation of the drawing]

The drawings from Fig. 1 to Fig. 7 show one embodiment of this invention, in which Fig. 1 is a perspective view of the rear part of the vehicle body, Fig. 2 is a perspective view of the reinforcing member alone, and Fig. 3 is a rear part of the vehicle body. FIG. 4 is a sectional view taken along the line -- in FIG. 1, FIG. 5 is a sectional view taken along the line -- in FIG.
A line sectional view, FIG. 7 is a - line sectional view of FIG. 1,
FIG. 8 is an exploded perspective view corresponding to FIG. 3 showing a conventional example. DESCRIPTION OF SYMBOLS 1... Outer panel, 10... Rear end, 2... Locker reinforcement, 20... Rear end, 3... Locker panel, 4... Quarter panel, 41... Wheel arch shaped part, 5... Wheel house, 6 ……
Wheel house outer, 7...Wheel house inner, 8...Roof side inner, 80...Lower end, 9...Reinforcement member, 90...Box-shaped closed section, 97
...bulge.

Claims (1)

[Scope of utility model registration request] A rear end of the outer panel of a closed-section rocker panel formed by an outer panel, an inner panel, and a rocker reinforcement is joined to a quarter panel,
This quarter panel is carved into a wheel arch shape along the wheel house, the wheel arch shaped portion of this quarter panel is joined to a wheel house outer forming the wheel house, this wheel house outer is joined to a wheel house inner, This wheel house inner is joined to the lower end of the roof side inner, and a reinforcing member that is joined to the wheel house inner and forms a closed cross section is attached to the lower end of the roof side inner, along the wheel arch-shaped portion. A vehicle body rear structure that extends forward and downward and is inserted into the closed section of the rocker panel, its upper and lower flanges are joined to the upper and lower flanges of the outer panel of the rocker panel, and its front end is joined to the rear end of the rocker reinforcement. A convex bulge is formed along the longitudinal direction of the reinforcing member to form a box-shaped closed cross section that continues from above the wheel house inner to the rocker panel, and the bulge of the reinforcing member forms a box. A vehicle body rear structure characterized in that a molded closed cross section is constructed continuously from a wheel house to a closed cross section of a rock panel.