JP2002046517A - Child seat mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a child seat mounting device to be constituted at a low cost and mount a fixing fitment for mounting a child seat with given rigidity ensured. SOLUTION: A cross member 3 extending in the direction of the width of a car body is disposed at the upper part of a rear floor panel 1 and the two ends thereof are fixed on both sides of a car body, and its intermediate part is securely coupled to a support bracket 6 to support a seat cushion or a seat back fixed on a rear floor panel. A fixing fitment 8 to fix the child seat placed on a seat cushion 2a of a rear seat 2 disposed in front of the cross member is mounted on the cross member 3. Given support rigidity is obtained by using the light and low-cost cross member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat mounting device.

[0002]

2. Description of the Related Art As a rear floor structure of a vehicle body, as shown in FIGS. 6 and 7, a raised portion 22 which is raised upward to arrange a suspension mechanism on both sides of a rear portion of a rear floor panel 21 is formed. It is known that a recess 23 used as a storage space for a spare tire 24 or the like is formed between them.

As shown in FIG. 8A, a child seat 33 is installed on a seat cushion 31 of a vehicle seat 30 according to an ISO standard for mounting a child seat on a vehicle seat. At the rear end and below the lower end of the seat back 32,
As shown in FIG. 8 (b), a fixing bracket 27 formed by bending a round bar into a hat cross-sectional shape is fixedly provided on the vehicle body side, and is disposed on the seat cushion 31.
A configuration has been proposed in which the distal end portion of the fixture 27 is inserted into an engagement groove 36 provided at the rear end of a connecting member 35 extending rearward from the lower end of the rear end and engaged and fixed.

When attaching a pair of fixing brackets 27 (27a, 27b) to the left and right sides on the rear floor panel 21, as shown in FIGS. 6 and 7, the outer fixing brackets 27a of each pair are raised. The base is welded and fixed to the upper surface of the front end of the portion 22, and the fixing bracket 27 b inside each pair is fixed to the front end surface 23 a of the recess 23 by welding and fixing the base. Also,
Rear seat back center hinge 28 (only shown in FIG. 7)
Is erected from the bottom of the front end of the recess 23.

However, in the configuration shown in FIGS. 6 and 7, the fixing metal 27 (27a, 27b) is extended upward from the mounting portion so as to position the distal end portion at a predetermined position. It is necessary to increase the rigidity of the mounting part in order to secure a predetermined strength, and it is disadvantageous in terms of cost, such as increasing the thickness of the mounting part or adding another bracket to reinforce it. There is a problem.

[0006] In addition, since it is necessary to ensure the mounting pitch accuracy for each of the fixing brackets 27, a base bracket that connects a pair of fixing brackets 27a and 27b in different mounting states is required, or complicated mounting is required. There is a problem that the cost of parts and the cost of mounting are high, such as the necessity of a jig.

[0007] In order to solve such a problem, the present applicant has previously disclosed in Japanese Patent Application No. 11-313255 a cross member that extends in the vehicle width direction above a rear floor panel, and a child seat is attached to the cross member. A configuration in which a fixing bracket for fixing is mounted is proposed.

[0008]

However, since the cross member is fixed to the vehicle body only at both ends, the mounting member has a long mounting span and does not move significantly when a load is applied from the child seat to the fixing bracket. In order to ensure such a predetermined supporting rigidity, it is necessary to consider the thickness of the cross member, for example, and there is a problem that the weight is large and the cost is high.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a child seat mounting apparatus capable of mounting a child seat mounting fixture with required rigidity in a low-cost configuration. .

[0010]

According to the child seat mounting apparatus of the present invention, a cross member extending in the vehicle width direction is disposed above a floor panel, and both ends thereof are fixed to both sides of the vehicle body, and an intermediate portion thereof is provided on a floor panel. And a fixing bracket for fixing a child seat placed on a seat disposed in front of the seat member, which is fixedly connected to a support bracket for supporting a seat cushion or a seat back fixed to the seat member. Since the middle portion of the cross member is supported by the floor, high support rigidity can be secured even when a lightweight and inexpensive cross member is used, and the load applied from the child seat at the time of a frontal collision acts on the cross member via the fixing bracket. Even if the child seat is not significantly deformed, the supporting rigidity of the child seat can be secured. Also, even if the cargo loaded at the rear moves forward due to sudden braking or the like and collides, there is no danger of deformation.

Further, when the cross member is fixed in a state in which the cross member is abutted against the support bracket from the rear, the support bracket can receive a forward load applied to the cross member from the child seat, so that high support strength can be obtained. Processing and assembly are also easy.

Further, when the support bracket is a support bracket for the pivot pin of the seat back, the support bracket for the pivot pin of the seat back has a structure in which the cross member can receive the support bracket from behind, so that the support bracket can be attached to the seat back at the time of backrest. The applied load is shared by the cross member, and the seat rigidity is ensured.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a child seat mounting apparatus according to the present invention will be described below with reference to FIGS.

In FIGS. 1 and 2, reference numeral 1 denotes a rear floor panel, and 2 denotes a rear seat disposed on a front portion thereof. A cross member 3 is disposed in the rear seat 2 above the rear floor panel 1 immediately after the seat cushion 2a. The cross member 3 is composed of a pipe member 3a having a length substantially the entire length thereof and mounting brackets 3b fixed to both ends thereof. The mounting bracket 3b is formed of a relatively short member having a rectangular groove shape having a shallow cross section, and an end of the pipe member 3a is fixed to an inner portion in the vehicle width direction thereof.
The outer portion in the vehicle width direction is fixed to the rear floor panel 1 with bolts 4. Also, cross member 3
Of the rear seat 2 stands upright.
It is connected to and supported by a support bracket 6 that supports a pivot pin 5 that supports it so that it can fall. That is, the support bracket 6 is fixed to the center position in the vehicle width direction on the rear floor panel 1 with the bolt 7, and the two are integrally formed in a state where the cross member 3 is abutted against the support bracket 6 from behind. Are combined.

To the cross member 3, two pairs of fixing brackets 8 are fixed at predetermined intervals to fix a child seat (not shown) placed on the seat cushion 2a of the rear seat 2. The fixing member 8 is formed by bending a round bar material into a substantially U-shape and curving its opening into an arc shape along the outer periphery of the pipe member 3a of the cross member 3, and forming the opening on the outer surface of the pipe member 3a. It is integrally fixed by welding.

According to the above configuration, since the intermediate portion of the cross member 3 is supported by the rear floor panel 1 via the support bracket 6, the cross member 3 mainly including the lightweight and inexpensive pipe member 3a is used. High rigidity can be ensured, and in particular, since the cross member 3 is fixed to the support bracket 6 in a state of being abutted from behind, the support bracket 6 receives the forward load applied to the cross member 3 from the child seat. , High supporting strength can be obtained. Therefore, even when a large load acts on the cross member 3 from the child seat (not shown) via the fixing bracket 8 in a frontal collision, the cross member 3
The child seat can be supported with high supporting rigidity without being greatly deformed.

As shown in FIG. 2, the load 9 loaded in the rear compartment 10 at the rear of the rear seat 2 is moved forward as indicated by a white arrow due to sudden braking or the like, and the cross member 3 is moved.
, There is no danger that the cross member 3 will be deformed.

Further, since the support bracket 6 for supporting the pivot pin 5 for pivotally supporting the seat back 2b of the rear seat 2 is received from the rear by the cross member 3, the load applied to the seat back 2b at the time of the backrest is reduced. 3 and the rigidity of the rear seat 2 is also ensured.

Further, since all the fixing brackets 8 are fixed to the cross member 3, workability can be reduced at low cost without using a base bracket or a complicated jig for positioning the fixing brackets 8 at a predetermined pitch accuracy. It is possible to mount each pair of fixing brackets 8 with high pitch accuracy. Further, since all the fixing brackets 8 are attached to the pipe member 3a, they are all the same parts, so that the mold cost can be greatly reduced and the cost can be reduced. In addition, since the fixing brackets 8 are attached to the cross member 3 disposed immediately behind the seat cushion 2a, the distance to the tip of each fixing bracket 8 is also shortened, so that high mounting rigidity can be secured.

Further, the cross member 3 is connected to the support bracket 6.
Since it is fixed in a state where it abuts from behind, processing,
Assembly is easy.

Next, another specific configuration example of the present embodiment will be described with reference to FIGS. As shown in FIGS. 4 and 5, a rear portion of the rear floor panel 1 has raised portions 11 for arranging suspension mechanisms on both sides, and a raised portion 12 is formed therebetween, and a concave portion 12 is formed therebetween. The cross member 3 is disposed above the front end of the recess 12, and both ends thereof are fixed to the upper surface of the front end of the raised portion 11. Further, a support bracket 6 of a pivot pin 5 for pivotally supporting the seat back 2b is provided from a front end at a central position of the concave portion 12 to a rear end portion of a floor surface in front of the concave portion. In the lower portion of the rear floor panel 1, a reinforcing member 1 a is provided from the lower surface of the front end of the recess 12 to the lower surface of the rear end of the floor surface, and a backing member 1 b is provided in a fixing portion of the support bracket 6. Is fixedly secured.

The cross member 3 is composed of a pipe member 3a and a mounting bracket 3b to which both ends of the pipe member 3a are fixed, and an inverted U-shaped fixed band 13 is put on both ends of the pipe member 3a. The lower end of 3a and both lower ends of the fixing band 13 are fixed to the mounting bracket 3b by welding. The mounting bracket 3b includes a rectangular groove-shaped connection fixing portion 14 having a shallow cross-sectional shape of an inner portion in the vehicle width direction, a projection 15 on the outside thereof, and an outermost fixing portion 16.
A pipe member 3a and a fixing band 13 are fixed to an inner portion of the bolt 4, and a bolt hole 17 of a bolt 4 for fixing the mounting bracket 3b is formed in an outer portion and a fixing portion 16.

In this embodiment, of the two pairs of fixing members 8, the fixing member 8 on the inner side in the vehicle width direction is fixed to the pipe member 3a as in the examples of FIGS. Are fixed to the upper end of the projection 15. Thus, the fixing member 8 is not limited to the pipe member 3a, but
Is fixed at an appropriate position.

The support bracket 6 includes a first bracket member 18 having a mounting plate 18a installed on the rear end of the floor surface and a support plate 18b erected from the mounting plate 18a in an inverted T-shape. A mounting plate portion 19a installed along the rear floor panel 1 from the mounting plate 18a to the front end bottom surface of the concave portion 12 and the support plate 1 from the mounting plate portion 19a.
The second bracket member 19 having a support plate portion 19b integrally erected so as to wrap the 8b in a U-shaped cross section is integrated. A support hole 5a is formed at the upper end of the support bracket 6 to penetrate the support plate 19b and the support plate 18b and to support the pivot pin 5 therethrough. Pipe member 3
a into which a notch 19c is formed to fit the pipe member 3
a is integrally fixed by welding. The bolt holes 20 of the bolts 7 for fixing the support bracket 6 correspond to the rear end of the floor surface and the front end of the concave portion 12, and the support plate 1
9b and the support plate 18b or the support plate 18b alone. By thus configuring the support bracket 6 by combining the two members 18 and 19, the support rigidity can be improved with a lighter and less expensive configuration.

The cross member 3 and the support bracket 6
The specific configuration is not limited to the above illustrated example, and may be arbitrarily designed according to the vehicle body structure and specifications.

Further, in the above-described embodiment, an example is shown in which the intermediate portion of the cross member 3 is connected and fixed to the support bracket 6 for supporting the pivot pin 5 of the seat back 2b. However, the support bracket for supporting the seat cushion 2a is shown. Or the like.

[0027]

According to the child seat mounting apparatus of the present invention, the cross member to which the bracket for fixing the child seat is mounted as described above is supported not only at both ends but also at an intermediate portion on the floor via the support bracket. Therefore, even if a lightweight and inexpensive cross member is used, the load applied from the child seat at the time of a frontal collision does not significantly deform, and the rigidity of supporting the child seat can be secured. Even if the vehicle moves forward due to sudden braking or the like and collides, there is no risk of deformation.

Further, when the cross member is fixed in a state in which the cross member is abutted against the support bracket from the rear, the support bracket receives a forward load applied to the cross member from the child seat, so that high support strength can be obtained. Processing and assembly are also easy.

Further, when the support bracket is a support bracket for a pivot pin for pivotally supporting the seat back, the support bracket for the seat back has a structure in which the cross member is received from the rear, so that the support bracket is added to the seat back at the time of the backrest. The load is shared by the cross members, and seat rigidity is ensured.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of a child seat mounting device of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a perspective view showing a specific configuration example of the embodiment.

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

FIG. 5 is a view taken in the direction of the arrow C in FIG. 3;

FIG. 6 is a perspective view of a rear floor structure of a conventional vehicle body.

FIG. 7 is a vertical sectional side view of the conventional example.

8A and 8B show an installation state of the child seat, wherein FIG. 8A is an overall perspective view, and FIG. 8B is a partial detailed perspective view of a portion D in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear floor panel 2 Rear seat 2a Seat cushion 2b Seat back 3 Cross member 5 Pivot pin 6 Support bracket 8 Fixing bracket

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Noriyoshi Yagi 2-1-1, Taoyuan, Ikeda-shi, Osaka Daihatsu Kogyo Co., Ltd. F-term (reference) 3B087 CE06 3D003 AA01 AA11 BB02 CA14 CA18 DA19

Claims (3)

[Claims] 1. A cross member extending in the vehicle width direction is disposed above a floor panel, and both ends thereof are fixed to both sides of the vehicle body, and an intermediate portion thereof supports a seat cushion or a seat back fixed to the floor panel. A child seat mounting device which is fixedly connected to a support bracket, and to which the fixing member for fixing a child seat mounted on a seat disposed in front of the cross member is mounted. 2. The fixing device according to claim 1, wherein the cross member is fixed in a state in which the cross member is in contact with the support bracket from behind.
A child seat mounting device as described in the above. 3. The support bracket according to claim 2, wherein the support bracket is a support bracket for a pivot pin of a seat back.
A child seat mounting device as described in the above.