JPH10287277A - Body floor reinforced structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength respectively in a support part of a latecon stay in a cross member and each mounting part of a seat striker and a seat belt anchor in a floor panel, so as to attain these improvements of strength by a simple constitution. SOLUTION: Cross members 13, 14 mounted in right/left side members 10, 10 are provided. A latecon bracket 38 is supported to the cross member 14. In a floor panel 16, a seat support fixture 46 and a seat belt anchor 48 are mounted. In the floor panel 16, a reinforcing plate 50 is mounted. This reinforcing plate 50 is positioned in the vicinity respectively of a support part of the latecon bracket 38 in the cross member 14 and each mounting part of the seat support fixture 46 and the seat belt anchor 48 in the floor panel 16, and the reinforcing plate 50 itself is integrally molded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a floor panel in which a lathe constrainer is supported on a cross member of a vehicle body, and a seat support and a seat belt anchor are mounted on a floor panel laid on the cross member. The present invention relates to a vehicle body floor reinforcing structure for reinforcing a vehicle body.

[0002]

2. Description of the Related Art Conventionally, a vehicle body is provided with a pair of left and right side members extending in the front-rear direction and a pair of front and rear cross members bridged between the left and right side members, and a lateral rod is pivotally supported on the cross member. There is one that supports a latte control bracket.

[0003] In addition, the above-mentioned vehicle body is conventionally provided with an actual open flat 5-3.
There is one disclosed in Japanese Patent No. 7661.

According to this, a floor panel is laid so as to straddle the two cross members, a seat is provided on the floor panel, and a seat is attached to the floor panel to support the seat on the floor panel. A support is provided, and a seat belt anchor is provided which is attached to the floor panel and connects the end of the seat belt for the seat to the floor panel.

[0005]

When the vehicle is running, a large external force is applied to the supporting portion of the cross member from the wheel side via the lateral rod.

[0006] In particular, during sudden braking or the like, a large external force is applied to the seat striker or the seat belt anchor attachment portion of the floor panel from the seat side or the occupant side of the seat.

[0007] For this reason, it is desired to improve the strength of the support portion and each mounting portion.

Therefore, conventionally, a reinforcing plate has been attached to each of the mounting portions, but it is conceivable to newly attach a reinforcing plate to the supporting portion.

However, if the reinforcing plates are provided for the supporting portions and the mounting portions, the number of parts on the vehicle body floor increases, and the structure may be complicated.

The present invention has been made in view of the above circumstances, and has improved the strength of the support portion of the latte constellation in the cross member and the attachment portions of the seat striker and the seat belt anchor in the floor panel. It is another object of the present invention to improve these strengths with a simple configuration.

[0011]

The vehicle body floor reinforcing structure of the present invention for solving the above-mentioned problems is provided with a pair of left and right side members extending in the front-rear direction. A pair of front and rear cross members 13 and 14 are provided.
Bracket 3 for pivotally supporting lateral rod 43
8

A floor panel 16 is laid so as to straddle the two cross members 13 and 14. A seat 18 is provided on the floor panel 16, and the seat 18 is attached to the floor panel 16 and attached to the floor panel 16.
In a vehicle provided with a seat support 46 for supporting the vehicle and a seat belt anchor 48 attached to the floor panel 16 and connecting the end of the seat belt 18a for the seat 18 to the floor panel 16,

A reinforcing plate 50 is attached to the floor panel 16, and the reinforcing plate 50 is attached to each of the support portion of the lateral control bracket 38 of the cross member 14, the seat support 46 and the seat belt anchor 48 of the floor panel 16. While being located near each of the mounting parts,
The reinforcing plate 50 is formed as a single piece.

[0014]

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

In FIG. 2, reference numeral 1 indicates a two-box type automobile, and an arrow Fr indicates the front of the automobile 1. The left and right described below refer to the vehicle width direction toward the front.

A pair of left and right front wheels 3 and a pair of right and left rear wheels 4 are suspended by front and rear suspensions 5 on the body 2 of the automobile 1. The vehicle body 2 is supported on the road surface 6 through the above.

In FIGS. 1 to 4, the interior space of the vehicle body 2 is a vehicle interior 8 and the bottom of the vehicle interior 8 is a vehicle body floor 9 constituting a lower part of the vehicle body 2. The vehicle body floor 9 is made of sheet metal, and a pair of left and right side members 1 extending in the front-rear direction.
It has 0,10. A lower back panel 11 for connecting the rear ends of the side members 10, 10 to each other is provided. In addition, the two side members 10, 10
Before the middle portions in the front-rear direction are connected to each other, the two side members 1 are interposed between the rear cross members 13 and 14 and the lower back panel 11 and the rear cross member 14.
Another cross member 15 for connecting 0 and 10 to each other
Are respectively installed on the both side members 10 and 10.

A floor panel 16 is laid across the upper surfaces of the side members 10, 10, the lower back panel 11, and the cross members 13 to 15, and is firmly connected to the upper surfaces by spot welding. ing. In the cabin 8, on the floor panel 16,
Front and rear seats 17 and 18 are provided.

In FIGS. 1-4, each side member 1
0 will be described in more detail.

Each of the side members 10 is formed by press molding, and has a substantially U-shaped cross section when viewed from the front, and side plates 10a, 10a facing each other slightly apart from each other on the left and right sides, and lower end edges of these side plates 10a, 10a. Bottom plate 1 for integrally connecting
0b and an outward flange 10c integrally formed on the upper edge of each of the side plates 10a.

Each of the side members 10 constitutes a front portion thereof and extends substantially horizontally forward and backward.
An intermediate member 21 which constitutes an intermediate portion in the front-rear direction of the side member 10 and integrally extends rearward and upward from a rear end of the front member 20;
And a rear member 22 extending substantially horizontally and integrally from the rear end of the intermediate member 21 to the rear. The rear end of the front member 20, the intermediate member 21, and the front end of the rear member 22 constitute a so-called kick-up portion of the side member 10.

2 to 4, there is provided a rear wheel support 24 extending in the vehicle width direction below the vehicle body floor 9 and rotatably supporting the left and right rear wheels 4, 4. As shown in FIG. The rear wheel support 24 is provided with a differential device 25 disposed at the center of the left and right rear wheels 4, and from the left and right sides of the differential device 25 to the outer rear wheels 4. Protruding axle housings 26, 26. Each of the axle housings 26 is located on the same axis extending in the vehicle width direction, and the rear wheel 4 is supported at its protruding end so as to be rotatable around the axis.

An input section of the differential 25 is connected to an engine (not shown) mounted on a front portion of the vehicle body 2 by a propeller shaft 27 in an interlocked manner. In each of the axle housings 26, an axle 28 is provided on the axis thereof.
The rear wheels 4 are interlocked to the left and right output portions of the differential device 25 via the respective axles 28.

The output of the engine is transmitted to each rear wheel 4 via the differential 25 and each axle 28.

1 to 4, the rear suspension 5 of the front and rear suspensions 5 will be described.

The suspension 5 is mounted on the rear wheel support 24 with respect to the intermediate member 21 of each side member 10.
And a pair of upper and lower links for pivotally supporting each axle housing 26 vertically. An upper spring seat 3 is provided at the front of the rear member 22 of each of the side members 10.
3 is formed, and a lower spring receiving seat 34 is formed at the protruding end of each axle housing 26. The upper spring seat 33 and the lower spring seat 34 are vertically opposed,
A compression spring is sandwiched between each of the upper spring seats 33 and the lower spring seats 34. The side members 10 of the vehicle body floor 9 are elastically supported on the respective axle housings 26 of the rear wheel support 24 by these two compression springs.

A shock absorber 37 is provided, one end of which is connected to the rear member 22 of each side member 10 and the other end of which is connected to each axle housing 26 of the rear wheel support 24. The shock absorber 37 is connected to the side member 1.
Between the zero and the rear wheel support 24, an impact force that is to be transmitted from one to the other is absorbed.

A lattecon bracket 38 projects downward from the vehicle body floor 9. This lattecon bracket 38 is one of the left and right side members 10, 10.
A bracket body 39 protruding downward from the front part of the halfway member 21 of the one side member 10 (left side);
A stay 40 for supporting the protruding end of the bracket body 39 at a longitudinally intermediate portion of the rear cross member 14.
And another stay 41 for supporting the protruding end of the bracket body 39 on the rear member 22 of the one (left) side member 10 behind the bracket body 39.

Near the rear of the differential 25 of the rear wheel support 24 and both axle housings 26, these 25, 2
A lateral rod 43 is provided extending in the vehicle width direction along 6. One end (left end) of the lateral rod 43 is pivotally supported by a pivot shaft 44 at a protruding end of the bracket body 39 of the lateral control bracket 38. The other end (right end) of the lateral rod 43 is rotatable up and down about the pivot shaft 44, and the other end of the lateral rod 43 is pivotally supported by the axle housing 26. And the lateral rod 43 is
The rear wheel support 24 is prevented from freely moving left and right with respect to the vehicle body floor 9 to ensure stability of the vehicle body 2.

In FIGS. 1, 3, 5, and 6, the floor panel 16 has a pair of left and right seat strikers 46, 46, which are a pair of left and right seat strikers for removably engaging and supporting the rear seat 18. Is provided. Each of these seat supports 46 is removably fastened to the floor panel 16 by fasteners 47. in this case,
The seat support 46 is provided at the same position in the front-rear direction as the cross member 13. For this reason, the seat support 46 is firmly attached to the floor panel 16.

A pair of left and right seat belt anchors 48 for connecting the end of the seat belt 18a for the seat 18 to the floor panel 16 behind each of the seat supports 46,
48 are provided. Each of these seat belt anchors 4
Numeral 8 is removably fastened to the floor panel 16 by fasteners 49.

A pair of left and right sheet metal reinforcing plates 50, 50 are firmly attached to the floor panel 16 by spot welding so as to make surface contact with the lower surface of the floor panel 16. These two reinforcing plates 50, 50 have the same shape and the same size as each other, and the components are shared. Both reinforcing plates 50
The right reinforcing plate 50 is provided between the support member of the stay 40 of the lateral control bracket 38 in the cross member 14 and the right seat support 4 in the floor panel 16.
6 and the right side of the seat belt anchor 48 in the vicinity of each mounting portion. For this reason, the support portion of the stay 40 of the lateral control bracket 38 in the cross member 14 and the attachment portions of the seat support 46 and the seat belt anchor 48 in the floor panel 16 are reinforced by the right reinforcing plate 50. , Strength is improved. The above-described right reinforcing plate 50 is an integral unit formed by itself, and the above-described improvement in strength is achieved with a simple configuration.

The left reinforcing plate 50 is located near each of the mounting portions of the left seat support 46 and the left seat belt anchor 48 on the floor panel 16. For this reason, each mounting portion of the seat support 46 and the seat belt anchor 48 on the floor panel 16 is reinforced by the left reinforcing plate 50 to improve the strength. The above-mentioned left reinforcing plate 50 is formed as an integral body by itself, and the above-mentioned improvement in strength is achieved with a simple configuration.

The front end of each reinforcing plate 50 is sandwiched between the cross member 13 and the floor panel 16, and these three members 13, 16, 50 are integrally spot-welded to each other to be firmly connected to each other. Have been. Further, the rear end of each reinforcing plate 50 is also spot-welded integrally with the cross member 14 and the floor panel 16 to be firmly connected to each other.

Further, the floor panel 16 and the reinforcing plate 50
Are fastened together by the fasteners 47 and 49 described above.

Therefore, the strength improvement is considered to be more effective.

In the kick-up portion of each of the side members 10, the intermediate member 21 to the rear member 2
2 is a bent portion. For example, when another vehicle collides with the vehicle 1 from behind, the transition portion tends to have insufficient strength against the impact force of the collision. Bend easily.

However, the transition portion and each reinforcing plate 50 are located at the same position in the front-rear direction, and therefore, the floor panel 1 reinforced by each reinforcing plate 50 is provided.
The portion 6 reinforces the transition portion, that is, the side members 10 are effectively reinforced with a simple configuration using the reinforcing plate 50, and the above-described easy bending is prevented.

[0039]

According to the present invention, a pair of left and right side members extending in the front-rear direction is provided, a pair of front and rear cross members provided on the left and right side members are provided, and the lateral member pivotally supports the lateral rod. Support the con bracket,

A floor panel is laid so as to straddle the two cross members, a sheet is provided on the floor panel, and a sheet support attached to the floor panel and supporting the sheet on the floor panel is provided; An automobile provided with a seat belt anchor attached to the floor panel and connecting an end of a seat belt for a seat to the floor panel,

A reinforcing plate is attached to the floor panel, and the reinforcing plate is positioned in the vicinity of the supporting portion of the lateral control bracket of the cross member and the mounting portions of the seat support and the seat belt anchor of the floor panel. It is.

For this reason, the support portion of the latte constellation in the cross member and the mounting portions of the seat striker and the seat belt anchor on the floor panel are
Each of the reinforcing plates is reinforced by the reinforcing plate to achieve an improvement in strength.

Further, the reinforcing plate is integrally formed.

For this reason, since the support portions and the respective mounting portions are reinforced by an integral reinforcing plate, an increase in the number of parts on the vehicle body floor is suppressed, and the above-described improvement in strength is achieved with a simple structure. Achieved.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line 1-1 in FIG.

FIG. 2 is an overall side view of the automobile.

FIG. 3 is a plan view of a rear portion of a vehicle body floor.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3;

FIG. 5 is a partially enlarged view of FIG. 3;

FIG. 6 is a sectional view taken along line 6-6 of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Body 4 Rear wheel 5 Suspension 8 Cabin 9 Body floor 10 Side member 13, 14 Cross member 16 Floor panel 18 Seat 18a Seat belt 38 Latecon bracket 43 Lateral rod 46 Seat support 47, 49 Fastener 48 Seat belt Anchor 50 reinforcing plate

Claims (1)

[Claims] 1. A pair of left and right side members extending in the front-rear direction are provided, a pair of front and rear cross members provided on the left and right side members are provided, and the cross member supports a lateral control bracket for pivotally supporting a lateral rod, A floor panel is laid so as to straddle the two cross members, a sheet is provided on the floor panel, and a seat support attached to the floor panel and supporting the sheet on the floor panel is provided; In a motor vehicle provided with a seat belt anchor attached to a panel and connecting an end of a seat belt for a seat to the floor panel, a reinforcing plate is attached to the floor panel, and the reinforcing plate is used to support a lateral control bracket in the cross member. Part, a seat support in the floor panel, and a seat. Together is positioned each near each mounting portion of the seatbelt anchor, the vehicle body floor reinforcing structure for an automobile that is itself integrally molding the reinforcement plate.