JP2000016346A - Floor structure of vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a patch member for reinforcing a seat belt anchor fitting part, to improve the strength of the seat belt anchor fitting part, a suspension arm fitting part, and a side body, and to improve the rigidity of a vehicle body floor. SOLUTION: In a floor structure, a hanger reinforcement (a trailing hanger reinforcement 17) to reinforce a suspension fitting hanger (a trailing arm hanger 7) is joined with a floor panel 2 of a vehicle body. A seat belt anchor 1 is jointly tightened with and fixed to a lapped part W of the floor panel 2 on the hanger reinforcement 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of a vehicle body in a four-wheeled vehicle or the like, and more particularly to a structure for attaching a seat belt anchor to a floor panel of a four-wheeled vehicle or the like.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a conventional four-wheeled vehicle floor structure. In this floor structure, a seat belt for engaging an end of a rear seat belt is provided. An anchor 1 is attached to a floor panel 2 of a vehicle body. Conventionally, a patch member 4 with a welding nut 3 (see FIG. 5) is applied to the back surface of the floor panel 2 corresponding to the mounting portion of the seat belt anchor 1 and the mounting piece 1a of the seat belt anchor 1 is The mounting piece 1a of the seatbelt anchor 1 is bolted to the floor panel 2 and the patch member 4 by applying the mounting bolt 5 to the welding nut 3 by applying the fixing member 5 to the surface of the floor panel 2 corresponding to the patch member 4. ing.
By the way, the patch member 4 as described above is used to attach the seat belt anchor 1 to the floor panel 2 because the thickness of the floor panel 2 is relatively thin, and thus the seat belt anchor of the floor panel 2 is used. This is because the strength of the mounting portion needs to be reinforced by the patch member 4.

In FIGS. 4 and 5, reference numeral 6 denotes a side frame having a U-shaped cross section spot-welded to the back surface of the side edge of the floor panel 2, and reference numeral 7 denotes a side frame which is spot-welded to the side frame 6 in a hanging state. The trailing arm hangers 8, 8 are a trailing arm (suspension arm) rotatably mounted on a support shaft 9 attached to the trailing arm hanger 7, and 10 is a side body outer panel 11 and a side sill inner panel. 12 is a side sill formed by joining the sill 12 with a closed cross-sectional shape.

[0004]

However, in the above-mentioned conventional floor structure, in order to reinforce the seat belt anchor mounting portion of the floor panel 2 having a small thickness, a considerably large dimension (joining area) is required. It is necessary to use a patch member 4 having a sufficient thickness. In addition, a separate and independent patch member 4 must be prepared for mounting the seat belt anchor 1, and there is a problem that the number of components is increased and component management is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object thereof is to omit a patch member for reinforcing a seatbelt anchor attachment portion, and to further provide a seatbelt anchor attachment portion and a suspension. It is an object of the present invention to provide a vehicle body floor structure having a structure capable of improving the strength of an arm mounting portion and a side body, and further improving the rigidity of a vehicle body floor.

[0006]

In order to achieve the above object, according to the present invention, a hanger reinforcement for reinforcing a hanger for mounting a suspension is joined to a floor panel of a vehicle body, and the floor panel and the hanger reinforcement are connected to each other. The seatbelt anchor is fastened and fixed to the overlapped portion with. In the present invention, the hungary reinforcement is connected to a side sill constituting a side body of the vehicle body, and the floor panel and the side sill are connected to each other via the hungary reinforcement.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3, the same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals.

FIG. 1 is a rear view of a vehicle body of a four-wheeled vehicle equipped with a floor structure according to the present invention, viewed from below without a rear wheel. In FIG. , 15 are rear bumpers arranged at the rear part of the vehicle body, 16
Is a rear axle housing for accommodating a rear wheel drive axle (not shown).

As shown in FIG. 1, a trailing arm hanger (suspension mounting hanger) 7 mounted on a side frame 6 and the above-described rear axle housing 16
Between the trailing arm 8 of the suspension mechanism
In this embodiment, the trailing arm hanger 7 is reinforced by a trailing arm hanger reinforcement (Hungarian reinforcement) 17. The configuration related to this will be described in detail below. First, FIG.
As shown in FIG. 3 and FIG. 3, the floor panel 2 is welded by spot welding S ₁ and S ₂ to a side frame 6 having a U-shaped cross section which constitutes one side of the vehicle body. 17 spot welding S ₃
The trailing arm hanger 7 integrally welded and attached to the side frame 6 is attached.

That is, the trailing arm hanger 7
Box shape having opposed plate portions 7a and 7b facing each other
While the trailing arm handle
The galinforcement 17 is L-shaped as shown in FIG.
A bending-molded reinforcement body 17a;
At the left and right edges of the reinforcement body 17a
Flange parts 17b and 17c which are bent respectively
It is composed of Thus, the trailing arm han
Flange 17c on the inner side of gall force 17
On the opposing plate 7a outside the trailing arm hanger 7
Spot welding S _ThreeAre welded together at
As a result, the trailing arm hanger 7 is reinforced.
I have. In addition, the above-described reinforcement body 17a
The bent piece 18 bent at the upper end of the
So that the welding nut 19 is attached in advance by welding.
Have been.

Further, the bent piece 18 of the main body 17a of the trailing arm hung reinforcement 17 is applied to the lower surface of the floor panel 2 which has been welded to the side frame 6 by spot welding as described above. _4, while being welded at S _5, the outer flange portion 17b of the trailing arm Hungary emissions reinforcement 17 is welded to the side sill inner panel 12 by spot welding S _6, S _7. Accordingly, the trailing arm hungary reinforcement 17 is connected to the side sill 10 constituting the side body of the vehicle body, whereby the floor panel 2 and the side sill 10 are connected to each other via the trailing arm hungary reinforcement 17. . Furthermore, the outer side of the facing plate portion 7a of the trailing arm hanger 7 are welded together by spot welding S ₈ to the opposing wall 6a of the outer side frame 6, the inner trailing arms hanger 7 facing plate portion 7b Are spot-welded S ₉ , S ₁₀ to the opposing wall 6 b inside the side frame 6.
Are welded together. A trailing arm is provided between the support shaft 9 fixed between the lower ends of the pair of left and right opposed plate portions 7a and 7b of the trailing arm hanger 7 suspended from the side frame 6 and the rear axle housing 16 described above. 8 is installed in a rotatable state.

The spot welding S _{1 to} S ₁₀ described above are:
Although only one place is shown in each of FIGS. 2 and 3,
Spot welding is performed at a plurality of locations along the joints at the respective locations.

Further, a seat belt anchor 1 to which a fastening device attached to one end of a rear seat belt is engaged.
Are mounted on the floor panel 2 as follows. That is, the trailing arm Hungary reinforcement 1 is located at a side edge of the floor panel 2.
7, the attachment piece 1a of the L-shaped seat belt anchor 1 is placed on the floor panel 2 at the floor panel portion where the bent piece 18 of the main body 17a is joined. 1a, the floor panel 2 and the bolt pieces 21 are inserted into bolt insertion holes 20 (see FIG. 2) formed in the bent piece portions 18, respectively.
The seat belt anchor 1 is fastened and fixed on the floor panel 2 by tightening the fastening bolt 21 into a welding nut 19 welded to the back surface of the floor panel 2. Therefore, the seat belt anchor 1 is attached to the side edge of the floor panel 2 and the trailing arm Hungary reinforcement 17.
2 and 3 (see FIGS. 2 and 3), in which the mounting piece 1a of the seat belt anchor 1 is attached to the floor panel 2 and the trailing arm hung reinforcement 17. And are fixedly joined together.

According to the floor structure having such a structure, the trailing arm hanger reinforcement 17 is attached to the trailing arm hanger 7.
The trailing arm hanger 7 can be reinforced and the seat belt anchor 1 can be attached to the floor panel 2.
And Trailing Arm Hungarian Reinforcement 17
Are fixed together to the overlapping portion W, so that the strength and rigidity of the mounting portion of the seat belt anchor 1 can be improved. Moreover, the mounting portion of the seat belt anchor 1 includes the side frame 6, the floor panel 2
Further, since the structure is connected to the side sill 10, the strength and rigidity of the mounting portion of the belt anchor 1 can be further increased. Further, since the trailing arm hungary reinforcement 17 is connected to the side sill 10 through the side sill inner panel 12, the strength of the side body including the side sill 10 can be improved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.
Various modifications and changes are possible based on the technical concept of the present invention. For example, the shapes of the trailing arm hanger 7 and the trailing arm hanger reinforcement 17 and the spots to be spot-welded can be appropriately changed as necessary. Further, the case of the trailing arm system has been described as an embodiment of the present invention. However, the present invention relates to a leaf spring between the rear axle housing 16 and a suspension mounting hanger (corresponding to the trailing arm hanger 7 described above). The present invention is also applicable to the case of a leaf spring type in which a bridge is provided.

[0016]

According to the first aspect of the present invention, a hanger reinforcement for reinforcing a hanger for mounting a suspension is joined to a floor panel of a vehicle body, and a seat is provided at an overlapping portion of the floor panel and the hanger reinforcement. Since the belt anchors are fixed together, the strength of the suspension mounting hanger itself can be improved with Hungary Reinforcement,
Since the mounting portion of the seat belt anchor is a portion where the floor panel and the Hungary reinforcement are overlapped, the strength and rigidity of the mounting portion of the seat belt anchor can be improved. In addition, since Hungarian Reinforcement can be used as a patch member that has been used conventionally,
The patch member can be omitted.

According to a second aspect of the present invention, the hungary reinforcement is connected to a side sill constituting a side body of the vehicle body, and the floor panel and the side sill are connected to each other via the hungary reinforcement. As a result, not only can the strength of the suspension mounting hanger itself be improved, but also the strength of the trailing arm mounting portion (suspension arm mounting portion) and the side body can be improved. The rigidity can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rear part of a vehicle body of a four-wheeled vehicle provided with a floor structure according to the present invention as viewed from below.

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

FIG. 3 is a perspective view seen from a direction indicated by an arrow X in FIG.

FIG. 4 is a perspective view showing a floor structure of a conventional vehicle body.

FIG. 5 is an enlarged sectional view taken along line BB in FIG. 4;

[Explanation of symbols]

 Reference Signs List 1 seat belt anchor 1a mounting piece 2 floor panel 6 side frame 7 trailing arm hanger 8 trailing arm 9 support shaft 10 side sill 11 side body outer panel 12 side sill inner panel 17 trailing arm hung reinforcement 17a body 17b, 17c Flange part 18 Bend piece part 19 Weld nut 20 Bolt insertion hole 21 Tightening bolt W Overlapping part

Claims (2)

[Claims] 1. A hanger reinforcement for reinforcing a suspension mounting hanger is joined to a floor panel of a vehicle body, and a seat belt anchor is fixedly fastened to an overlapping portion of the floor panel and the hanger reinforcement. A floor structure of a vehicle body, characterized in that: 2. The vehicle according to claim 1, wherein the hungary reinforcement is connected to a side sill constituting a side body of the vehicle body, and the floor panel and the side sill are connected to each other via the hungary reinforcement. Item 2. The floor structure of a vehicle body according to item 1.