JPS6141668Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a side member structure which is a longitudinal strength member of a vehicle such as an automobile.

2. Description of the Related Art Conventionally, as a side member of a vehicle, for example, an automobile, there is a member having a so-called hat-shaped cross section.

This side member with a hat-shaped cross section has the highest rigidity when the opening side is closed and the flanges on both sides of the opening are joined to the panel to form a closed cross section. .

Therefore, in conventional automobiles, for example, when used in conjunction with a floor panel, a flange is welded to the lower side of the floor with the opening facing upward; When joining to a panel in the longitudinal direction and the up-down direction, the opening is directed outward in the width direction of the vehicle body, and the flange is joined to the panel.

The latter case is particularly used when side members are arranged on both sides in the width direction of the vehicle body and the engine is mounted between the side members in an engine room where a floor panel is not provided.

On the other hand, when considering the rigidity of the entire vehicle body and vibration countermeasures, it is preferable that the side members in the vehicle width direction are arranged continuously in the longitudinal direction.

Therefore, even in a vehicle having a floor side member with an inverted hat-shaped cross section with the opening facing upward, and a side member with a horizontal hat-shaped cross-section with the opening facing outward in the width direction of the vehicle body, it is possible to It is desirable to align and connect them integrally.

However, when trying to connect side members with hat-shaped cross sections facing different directions in the longitudinal direction, the rigidity becomes discontinuous at the connection part, and in particular, the connection cannot be made without taking measures such as cutting off the flange part. Therefore, conventionally, the connection had to be made through other members such as cross members arranged in the vehicle width direction, and therefore, the rigidity of the side members in the longitudinal direction of the vehicle was insufficient at the connections with other members. In addition to being continuous, reinforcing is required to increase the strength of the connection.
There were problems such as increased vehicle weight.

This idea was devised in view of the above-mentioned problems with the conventional technology.It is possible to create a side member with a hat-shaped cross section facing in different directions without discontinuing the rigidity in the longitudinal direction, and without increasing the weight. without any trouble,
An object of the present invention is to provide a side member structure for a vehicle that can be aligned and continuously coupled in the longitudinal direction of the vehicle.

This idea includes a floor side member in the longitudinal direction of the vehicle, which has an inverted hat-shaped cross section and is connected to the lower surface of the floor panel through a flange portion with the opening facing upward;
A side member outer that is long in the longitudinal direction of the vehicle and arranged substantially vertically; and a side member outer that is arranged on the outer side of the end in the longitudinal direction of the floor panel, with the opening facing the outer side in the width direction of the vehicle, and a side member outer that is arranged substantially vertically. , an end side member in the vehicle longitudinal direction having a horizontal hat-shaped cross section coupled to the side member outer, and an inner wall in the vehicle width direction and a bottom wall of the floor side member in the vehicle side member structure. A part of the inner side in the width direction extends outward from the end of the floor panel, and an outer wall in the vehicle width direction and an outer flange portion continuous with the outer wall are cut out inward from the end of the floor panel,
The side member outer is arranged in alignment with the outer wall of the floor side member, and the inner wall and the bottom wall of the end side member are aligned with the inner wall and the bottom wall of the floor side member, respectively, and The inner wall and the bottom wall of the side member are extended inward from the end of the floor panel and overlapped and joined to the inner wall and the bottom wall of the floor side member, and the side member outer is connected to the floor side member. An upper edge portion that extends to a position overlapping with and joined to the inner wall of the side member and is coupled to the upper flange portion of the end side member is connected from the end of the upper flange portion to the outer flange of the floor side member. The above object is achieved by continuously twisting and bending the flange from a substantially vertical direction to a horizontal direction until it overlaps the outer flange, and joining the flange to the outer flange.

Moreover, this invention achieves the above object by overlapping and joining the end side member and the side member outer to the outside of the floor side member.

This invention also achieves the above object by joining the ends of the upper wall and upper flange of the end side member to the end of the floor panel.

Further, this invention provides an end flange of a cross member in the vehicle width direction joined to the lower surface of the end of the floor panel at the overlapping portion of the inner walls of the floor side member and the end side member. The above object is achieved by joining from front to back.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in the figure, this embodiment includes a floor side member 2 in the longitudinal direction of the vehicle, which has an inverted hat-shaped cross section and is connected to the lower surface of a floor panel 1 through flange portions 3, 3A, and 3B with the opening facing upward. , a side member outer 4 that is long in the longitudinal direction of the vehicle and arranged substantially vertically; and the floor panel 1.
An end side member in the longitudinal direction of the vehicle having a horizontal hat-shaped cross section and connected to the side member outer 4 via the flange portion 6 with the opening facing outward in the longitudinal direction of the vehicle. 5
In the vehicle side member structure, a part of the inner side wall 2A in the vehicle width direction and the bottom wall 2C of the floor side member 2 on the inner side in the vehicle width direction is outside of the end portion 1A of the floor panel 1. while cutting out the outer wall 2B in the vehicle width direction and the outer flange portion 3A continuous to the outer wall 2B inward from the end portion 1A of the floor panel 1,
The side member outer 4 is attached to the outer wall 2B of the floor side member 2, and the inner wall 5A and bottom wall 5C of the end side member 5 are attached to the inner wall 2A and bottom wall 2C of the floor side member 2.
and the inner wall 5A and bottom wall 5C of the end side member 4 are extended inward from the end 1A of the floor panel 1, so that the inner wall of the floor side member 2 2A and the bottom wall 2C, and the side member outer 4 extends to a position overlapping with the inner wall 2A of the floor side member 2 and is joined thereto, and the upper side of the end side member 5 The upper edge portion 4A that is coupled to the flange portion 6A is continuously twisted and bent from the substantially vertical direction to the horizontal direction from the end of the upper flange portion 6A to a position overlapping the outer flange portion 3A of the floor side member 2. It is extended and joined to the outer flange portion 3A.

The end side member 5 and the side member outer 4 are overlapped and joined to the outside of the floor side member 2.

Further, the upper wall 5D of the end side member 5
The end portions of the upper flange portions 6A on the floor side member 2 side are respectively joined to the end portions 1A of the floor panel 1.

Further, the bottom wall 5C of the end side member 5 and the lower flange portion 6B continuous therewith extend toward the floor side member 2 side from the end portion 1A of the floor panel 1, and in this extended portion, the bottom wall 5C wall 5
C is joined to the bottom wall 2C, and the lower flange portion 6B is joined to the lower end of the side member outer 4.

Further, at the overlapping portion of the inner walls 2A and 5A of the floor side member 2 and the end side member 5, an end of a cross member 7 in the vehicle width direction is joined along the lower surface of the end 1A of the floor panel 1. The flanges 7A and 7B are connected to the floor panel 1.
It is joined across the front and rear of the end portion 1A.

The bottom wall 7C of the cross member 7 is closer to the bottom wall 2C of the floor side member 2 and the bottom wall 5 of the end side member 5 than the end flanges 7A, 7B.
It extends to the lower side of the overlapped portion with C, and is integrally joined to these bottom walls 2C and 5C at the extended portion.

Reference numeral 10 in the figure is a reinforcement attached to the lower inner corner of the end side member 5 and continuously attached to the end of the extension of the floor side member 2, 11 is a wheel house inner, and 12 is a spring. 13 is a luggage partition panel, 14 is a welded portion, and 15 is a tightening bolt.

Therefore, in this embodiment, the floor side member 2 and the end side member 5 whose openings in their hat-shaped cross sections are oriented in different directions,
The outer flange portion 3A of the floor side member 2 and the upper flange portion 6A of the end side member 5 are connected continuously at the connecting portion, and in particular, the upper edge portion 4A of the side member outer 4 is twisted and bent. Since the floor side member 2 and the end side member 5 are connected continuously, the floor side member 2 and the end side member 5 can be connected without discontinuing the cross-sectional rigidity in the longitudinal direction.

In particular, in this embodiment, the overlapping portions of the inner walls 2A and 5A at the connection portion between the floor side member 2 and the end side member 5 are connected via the end flanges 7A and 7B of the cross member 7, In addition, since the overlapped portions of the bottom walls 2C and 5C are overlapped and connected by the bottom wall 7C of the cross member 7, the strength of the connection in the front-rear direction is greatly increased.

Furthermore, in this embodiment, the end portion 1A of the floor panel 1 is also connected to the upper wall 5D and the upper flange portion 6A of the end side member 5, and the spring support 12 is attached along the upper edge portion 4A of the side member outer 4. The upper flange portion 6A of the end side member 5 is integrally joined to the upper flange portion 6A of the end side member 5, and at the same time, the outer end portion of the luggage partition panel 13 in the single body width direction is connected to the upper flange portion 6A of the end side member 5 and the side member outer 4. Since it is joined together with the spring support 12 to the joint part with the edge 4A, the rigidity of the joint part is further increased significantly.

In the above embodiment, the end of the floor side member 2 is joined to the inner side of the side member outer 4 and the end side member 5, but the present invention is not limited to this, and The floor side member 2 may be joined to the outside of the member outer 4 and the end side member 5.

Further, in the above embodiment, the end portion 1 of the floor panel 1
A, the cross member 7 is joined along the direction A, and the end flanges 7A, 7B and the extension of the bottom wall 7C of the cross member 7 are overlapped with the joint between the floor side member 2 and the end side member 5. Although the cross member 7 is joined, the present invention is not limited to this, and can be applied even when the cross member 7 is not provided.

Similarly, the present invention is applicable even when no inner wheel house, spring support, luggage partition panel, etc. are provided.

Since the present invention is configured as described above, the floor side member with the opening facing upward and the end side member with the opening facing outward in the width direction of the vehicle body can be connected without discontinuity in cross-sectional rigidity in the longitudinal direction. It has the excellent effect of being able to align and connect the two continuously in the longitudinal direction of the vehicle without increasing weight.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a side member structure for a vehicle according to the present invention, FIG. 2 is an exploded perspective view showing main parts of the same embodiment, and FIG.
It is a sectional view along a line. 1... Floor panel, 1A... End, 2... Floor side member, 2A... Inner wall, 2B... Outer wall, 2C... Bottom wall, 3... Flange portion, 3A...
...outer flange part, 4...side member outer,
4A...Top edge, 5...End side member, 5
A...Inner wall, 5C...Bottom wall, 5D...Upper wall,
6...Flange part, 6A...Upper flange part, 7
...Cross member, 7A, 7B... End flange, 7C... Bottom wall.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A floor side member in the longitudinal direction of the vehicle with an inverted hat-shaped cross section connected to the lower surface of the floor panel through a flange portion with the opening facing upward; , a side member outer arranged in a substantially vertical direction, and the floor panel,
an end side member in the longitudinal direction of the vehicle that has a horizontal hat-shaped cross section and is connected to the outer side member via a flange portion, the end side member being disposed outside the end in the longitudinal direction and having an opening facing outward in the vehicle width direction. In the vehicle side member structure, a part of the inner side wall in the vehicle width direction and the bottom wall of the floor side member on the inner side in the vehicle width direction extends outward from the end of the floor panel, and A wall and an outer flange portion continuous to the outer wall are notched inwardly from the end of the floor panel, and the side member outer is cut out to the outer wall of the floor side member, and the inner wall and bottom wall of the end side member are cut out. of,
The floor side member is arranged in alignment with the inner wall and the bottom wall of the floor side member, and the inner wall and the bottom wall of the end side member extend inward from the end of the floor panel. The side member outer extends to a position where it overlaps with the inner wall of the floor side member and is joined thereto, and the upper flange portion of the end side member The upper edge portion to be joined is continuously twisted and bent in a substantially vertical direction to a horizontal direction from the end of the upper flange portion to a position overlapping the outer flange portion of the floor side member, and the outer flange portion A vehicle side member structure characterized by being joined to. (2) The side member structure for a vehicle according to claim 1, wherein the end side member and the side member outer are overlapped and joined to the outside of the floor side member. (3) A side member for a vehicle according to claim 1 or 2 of the utility model registration claim, characterized in that the ends of the upper wall and upper flange of the end side member are joined to the end of the floor panel. structure. (4) An end flange of a cross member in the vehicle width direction joined to the lower surface of the end of the floor panel is attached to the overlapping portion of the inner side walls of the floor side member and the end side member at the front and rear of the end of the floor panel. A side member structure for a vehicle according to claim 1, 2 or 3 of the utility model registration, characterized in that the side member structure is joined across the body.