JP2977010B2 - Vehicle seat mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a seat on a vehicle floor, and more particularly to a device capable of reducing the reinforcement.

[0002]

2. Description of the Related Art In a conventional vehicle, as shown in FIGS. 5 and 6, a rear portion of a slide rail 2 for sliding a front seat 1 back and forth is riveted to an upper surface of one end 4 of a bracket 3. The arm 5 extends from the one end 4 of the bracket 3 in the vehicle width direction, and the other end 6 further extends from the arm 5 in the vehicle width direction, and the other end 6 is a floor panel 8 reinforced by a phosphorus hose 7. And a buckle 11 of a seat belt 10 is attached to a rear portion of the front seat 1.

[0003] However, when a large load is applied obliquely upward to the rear of the front seat 1 via the seat belt 10 by an occupant sitting in the front seat 1 such as when the vehicle suddenly decelerates, the bracket 3 is moved to the other end. One end 4 is about to be lifted with the lower edge 12 of the part 6 as a fulcrum, but the arm 5 and the other end 6 of the bracket 3
As a result, the portion between the one end 4 of the bracket 3 and the arm portion 5 is deformed as shown in FIG. A particularly large pull-out force acts due to the lever action according to the distance to the bolt 12, and the bolt 9 may be pulled out of the floor panel 8. Therefore, in order to increase the rigidity of the bracket 3, there are disadvantages such as increasing the plate thickness of the entire bracket 3 or adding a separate reinforcing portion to the bracket 3.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent a large load from acting on a fixed portion between a vehicle seat or a bracket supporting a slide rail thereof and a vehicle floor when the vehicle is suddenly decelerated. Is what you do.

[0005]

SUMMARY OF THE INVENTION Therefore, a vehicle seat mounting apparatus according to the present invention extends laterally from the same end as one end of a vehicle seat or a slide rail thereof, the rear of which is fixed to an upper surface. A bracket having an arm portion formed with a flange and a second end portion extending further laterally from the arm portion and fixed to the vehicle floor side, the other end portion corresponding to the vehicle floor side. It is formed in the shape of a contacting flat plate.

[0006]

Therefore, when the rear portion of the vehicle seat is to be lifted by a large load when the vehicle suddenly decelerates, the rear portion of the vehicle seat or its slide rail is moved from one end of the bracket fixed to the upper surface. The bracket arms that extend in the lateral direction have high rigidity due to the formation of the flange and are difficult to deform, whereas the other end of the bracket fixed to the vehicle floor side is formed in a flat plate shape and the rigidity is compared. In this case, the connection between the bracket arm and the other end of the bracket is likely to bend, and this bending maintains the other end of the flat bracket in contact with the vehicle floor. Unlike the device, a particularly large tensile force does not act on the fixed portion between the other end of the bracket and the vehicle floor side.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described by assigning the same reference numerals to the same parts as those of the conventional apparatus. 1 and 2, a bracket 20 includes one end 21, an arm 22 extending from the one end 21 in the vehicle width direction, and an arm 22.
And a rear end of the slide rail 2 for sliding the front seat of the vehicle back and forth is riveted on the upper surface of the one end 21 in the same manner as in the conventional device. In addition, the arm portion 22 is provided with a downwardly folded flange 24 having substantially the same shape in the front and rear direction to provide high rigidity along the entire arm portion 22, while the other end portion 23 is formed in a flat plate shape. And is fixed to the floor panel 8 reinforced by the phosphorus hose 7 by bolts 26 passing through the bolt holes 25.

Therefore, when a large load is applied obliquely upward to the rear portion of the front seat through the seat belt by the occupant sitting on the front seat, as in the case of the conventional device, when the vehicle suddenly decelerates, etc. As shown in FIG. 4 and FIG. 4, the large lifting force acting on the bracket 20 causes the bracket 20 to have a rigid arm 22 due to the flange 24 and a flat, relatively rigid other end 2.
3 is bent, and between the one end 21 and the arm 22 is bent and deformed as in the case of the conventional device, and the other end 23 is held in contact with the floor panel 8. Therefore, the tensile load acting on the bolt 26 is
Since it is not affected by the leverage effect of the conventional device, it can be relatively small, pulling out the bolt 26 from the floor panel 8 is suppressed, and a stable deformation mode of the front seat can be ensured.

Further, since the connecting portion between the arm portion 22 and the other end portion 23 of the bracket 20 is intentionally bent and deformed, it is not necessary to particularly increase the plate thickness of the entire bracket 20, and the bolt 26 Is relatively small, it is not necessary to increase the thickness of the phosphorus hose 7 of the floor panel 8 to which the bolts 26 are attached, and the weight and cost of these attachment devices can be easily reduced. . For this reason, the above-mentioned mounting device has an advantage that the practical effect is very large despite its simple configuration.

The bolt holes formed in the other end of the flat plate of the bracket in the above embodiment may be shifted by an appropriate distance in the left and right vehicle width directions. For example, the center of the bolt hole may be shifted to the bracket arm portion. And the other end of the bracket can be disposed at the connection portion, and the flange formed on the arm of the bracket in each of the above embodiments is appropriately deformed as long as sufficient rigidity can be imparted to the arm, for example, Even if you make changes such as omitting the folded part downward,
The same operation and effect as those of the above-described embodiments can be obtained. Further, even if the vehicle seat is directly fixed to the bracket, the same operation and effect as those of the above-described embodiments can be obtained. Needless to say.

[0011]

In the vehicle seat mounting apparatus according to the present invention, when the rear portion of the vehicle seat is lifted by a large load at the time of sudden deceleration of the vehicle, the connecting portion between the bracket arm and the other end of the bracket is formed. Since the flat plate-shaped bracket is bent and the other end of the flat plate is kept in contact with the vehicle floor, a large tensile force may not be applied to a fixed portion between the other end of the bracket and the vehicle floor. Therefore, it is not necessary to particularly increase the thickness of the entire bracket or to increase the strength of the vehicle floor to which the other end of the bracket is fixed, so that it is easy to reduce the weight and cost of these parts. Can be realized.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the embodiment.

FIG. 3 is an operation explanatory view of the embodiment.

FIG. 4 is an explanatory diagram of an operation of a main part of the embodiment.

FIG. 5 is an overall perspective view of a conventional device.

FIG. 6 is an enlarged view taken in the direction of arrow VI in FIG. 5;

FIG. 7 is an operation explanatory view of the conventional device.

[Explanation of symbols]

 2 Slide rail for seat 8 Floor panel 20 Bracket 21 One end 22 Arm 23 Other end 24 Flange 26 Bolt

Claims (3)

(57) [Claims] 1. A vehicle seat or one end thereof having a rear portion thereof fixed to an upper surface, an arm portion extending laterally from the same end to form a flange, and further extending laterally from the arm portion. A vehicle seat mounting device having a bracket having an extended end and a second end fixed to a vehicle floor, wherein the second end is formed in a flat plate shape and abuts against the vehicle floor. 2. The vehicle seat mounting device according to claim 1, wherein the other end is bolted to the vehicle floor side. 3. The vehicle seat mounting device according to claim 2, wherein a bolt hole is formed at the other end.