JP2003072436A - Child seat locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent locking of a child seat arranged on a seat of a vehicle with a vehicle body side from easily releasing. SOLUTION: A striker 10, fixed to a pipe 2 that is fixed to the vehicle body and extended in the car width direction, extends close to the lower end of a seatback 6 and the rear end of a seat cushion 7, a bracket 11 of approximately U-shaped longitudinal section fixed to the pipe 2 extends from a tip of the striker 10 to the front part of the vehicle body while embracing the striker 10, an arm 8 arranged on the rear end of the child seat extends to the rear part of the vehicle through the part between the lower end of the seatback 6 and the rear end of the seat cushion 7, and a latch 9 arranged on the tip of arm 8 is engaged with the striker 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for locking a child seat arranged on a vehicle seat on the vehicle body side.

[0002]

2. Description of the Related Art A known child seat locking device is shown in FIGS. 9 and 10.
A plurality of brackets 3 are fixed to pipes 2 that are fixed to the vehicle body on the vehicle rear side of the vehicle seat 1 and extend in the vehicle width direction at appropriate intervals in the vehicle width direction. A striker 4 having a substantially U-shape when viewed from above is fixed to the vehicle. On the other hand, the rear lower end of the child seat 5 extends rearward of the vehicle between the lower end of the seat back 6 of the seat 1 and the upper surface of the rear end of the seat cushion 7. The two arms 8 are attached at appropriate intervals in the vehicle width direction, and are arranged on the seat cushion 7 by engaging the latches 9 provided at the tip ends of the arms 8 with the striker 4, respectively. The child seat 5 is locked to the vehicle body side.

However, when the child seat 5 is tilted in the vehicle width direction due to a side collision of the vehicle or the like, the arm 8 is displaced upward or downward to apply an upward load or a downward load to the striker 4, respectively. ,
As illustrated by the chain double-dashed line in FIG. 10, the striker 4 may be greatly bent or damaged,
Therefore, the striker 4 and the latch 9 may be disengaged.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to make it difficult to disengage a child seat arranged on a vehicle seat from the vehicle body.

[0005]

Therefore, a child seat locking device according to the present invention is provided with a striker fixed near the lower end of a seat back and a rear end of a seat cushion, which are closely opposed to each other, and a striker fixed to the vehicle body. And a stopper fixed to the vehicle body side at least one of above and below a portion of the mounting member for locking the striker.

That is, when the attachment member attached to the child seat is locked to the striker fixed to the vehicle body and the child seat is placed on the seat cushion, the child seat is inclined in the vehicle width direction for some reason. Therefore, even if the attachment member attached to the child seat is to be displaced upward or downward, the stopper fixed to the vehicle body side is provided above or below the portion of the attachment member engaging with the striker. The displacement is appropriately stopped by the stopper, and the engagement between the striker and the mounting member is hard to come off.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described by giving the same reference numerals to the same parts as those of the conventional device and the same parts of the respective embodiments. In the first embodiment shown in FIG. 1 and FIG. 2, a striker 10 fixed to the vehicle body and extending in the vehicle width direction is provided with strikers 10 having a substantially U-shape when viewed from above at appropriate intervals in the vehicle width direction. A plurality of strikers 10 are fixed by welding or the like, and each of the strikers 10 extends from the pipe 2 toward the front of the vehicle and reaches the vicinity of the lower end of the seat back 6 and the rear end of the seat cushion 7 which are close to each other.

The bracket 11 provided for each striker 10 and having its end fixed to the pipe 2 by welding or the like,
A lower surface portion 12 that is arranged below the striker 10 with a space therebetween, and a lower surface portion 12 that sandwiches the striker 10 in the vehicle width direction.
A pair of side surface portions 13, which are respectively raised from both ends of the
13 and has a substantially U-shaped vertical cross section, and extends to the vehicle front side from the vehicle front side end portion of the striker 10.

On the other hand, an arm 8 is attached to the rear lower end of the child seat 5 arranged on the seat cushion 7, and the front end of the arm 8 is bracketed between the lower end of the seat back 6 and the rear end of the seat cushion 7. The child seat 5 is locked to the vehicle body side by being inserted into the lower surface portion 12 of the armature 11 and engaging the latch 9 provided at the tip end portion of the arm 8 with the striker 10.
A small gap is formed between the lower surface of the bracket and the lower surface portion 12 of the bracket 11.

In the above device, since the lower surface 12 of the bracket 11 is arranged immediately below the tip of the arm 8, the child seat 5 tilts in the vehicle width direction due to a side collision of the vehicle, etc. Even if the arm 8 attached to the arm 8 is displaced downward, the tip of the arm 8 contacts the lower surface 12 of the bracket 11,
The bracket lower surface portion 12 can function as a stopper that appropriately suppresses downward displacement of the tip portion of the arm 8.

That is, since the downward displacement of the tip portion of the arm 8 is restricted by the bracket 11, the striker 10 is prevented.
Is prevented from being bent downward, and the latch 9 and the striker 10 are less likely to be disengaged from each other. Therefore, the child seat 5 is securely engaged to the vehicle body side through the pipe 2 and seated on the child seat 5. The safety of infants can be improved.

The lower surface 12 of the bracket 11 extends toward the front of the vehicle, and the tip of the arm 8 is attached to the seat back 6.
When it is inserted rearward of the vehicle from between the lower end of the seat cushion and the rear end of the seat cushion 7, the tip of the arm 8 can be smoothly displaced rearward of the vehicle by being guided by the bracket lower surface portion 12, and thus the latch 9 can be striker. There is an advantage that the child seat 5 can be relatively easily engaged with the child seat 10 and the assembling work of the child seat 5 becomes simple.

Further, the bracket 11 has a substantially U-shaped vertical cross section composed of a lower surface portion 12 and both side surface portions 13.
Since the strength of the bracket 11 itself is large, it is possible to easily suppress the downward displacement of the tip portion of the arm 8 despite the simple structure.

In the second embodiment shown in FIG. 3, instead of fixing the striker 10 to the pipe 2 as in the first embodiment, both side surface portions of the bracket 11 are straddled over the both side surface portions 13. Which is fixed to No. 13 and has the same effects as those of the first embodiment,
The structure is simpler than that of the embodiment, and the assembling thereof is easy, and the manufacturing cost can be reduced.

In the third embodiment shown in FIG. 4, the lower surface 12 of the bracket 11 is slightly downward toward the front of the vehicle at the end of the bracket 11 in front of the striker 10 of the second embodiment. In addition, both side surface portions 13 of the bracket 11 are widened toward the front of the vehicle, so that the same effect as that of the second embodiment can be obtained, and the tip end portion of the arm 8 is connected to the seat back 6 of the seat back 6. When it is inserted from the lower end to the rear end of the seat cushion 7 in the rear lower direction of the vehicle, the downwardly inclined portion of the bracket lower surface portion 12 can easily guide the front end portion of the arm 8 rearward of the vehicle, and at the same time, the bracket 11 Since both side surface portions 13 of the arm 8 can guide the tip end portion of the arm 8 to the center side in the vehicle width direction of the bracket 11, the arm 8 by the bracket 11 is guided.
It is possible to further enhance the guide function of the tip portion.

In the fourth embodiment shown in FIGS. 5 and 6, the striker 21 is fixed to the vehicle body floor 20 adjacent to the rear of the vehicle seat by welding, bolts or the like to form a substantially U-shape from the floor 20. On the other hand, a convex portion 22 formed on the floor 20 and extending in the vehicle front-rear direction is straddled by a striker 21 while standing upright, and a front end portion 23 of the convex portion 22 extending from the striker 21 to the vehicle front side is in front of the vehicle. It is slightly inclined downward toward.

Therefore, as in the case of each of the above-described embodiments, when the tip portion of the arm 8 is inserted from the lower end of the seat back (not shown) and the rear end of the seat cushion to the rear lower side of the vehicle, the convex portion 22 is formed. The downwardly inclined front end portion 23 and the upper surface of the convex portion 22 in the vehicle front side of the striker 21 can easily guide the tip end portion of the arm 8 rearward of the vehicle, and securely engage a latch (not shown) at the tip end portion of the arm 8. It becomes possible to engage with the striker 21, and the same effects as those of the above-described respective embodiments can be obtained.

In the fifth embodiment shown in FIG. 7, the striker 10 is fixed to the side surface portions 13 of the bracket 11 so as to straddle the side surface portions 13 of the bracket 11, and the vehicle front side of the side surface portions 13 is located in the vehicle front side. In addition to being formed so as to be gradually lowered toward the side, the same effect as the second embodiment can be obtained, and both side surface portions 1 of the bracket 11 are provided.
There is a feature that makes it easier to avoid the interference between the seat back 3 and the seat back 6.

A sixth embodiment shown in FIG. 8 is an end portion of the bracket 11 on the vehicle front side with respect to the striker 10 of the fifth embodiment, and the lower surface portion 12 and both side surface portions 13 of the bracket 11 face forward of the vehicle. It has become widespread,
The same effects as those of the fifth embodiment can be achieved, and the same effects as those of the third embodiment can be achieved.

In each of the above-described embodiments, the stopper bracket 11 is installed below the striker 10 to prevent downward displacement of the arm tip portion 8. However, these stoppers are installed above the striker 10. Needless to say, upward displacement of the tip of the arm 8 including the latch 9 that engages with the striker 10 may be suppressed, and the lower surface of the tip of the arm 8 and the bracket in each of the above-described embodiments may be suppressed. A small gap is basically formed between the lower surface portion 11 of the arm 11 and the lower surface portion 12, but the gap is eliminated so that the both contact each other, and when the latch 9 and the striker 10 are engaged, the tip portion of the arm 8 is It can also be configured to be guided by the lower surface portion 12 of the bracket 11.

[0021]

In the child seat locking device according to the present invention, when the mounting member attached to the child seat is locked to the striker fixed to the vehicle body side and the child seat is arranged on the seat cushion. , The child seat is displaced for some reason,
Even if the attachment member attached to the child seat is to be displaced upward or downward, a stopper fixed to the vehicle body side is provided above or below the portion of the attachment member that engages with the striker. The striker and the attachment member are less likely to be disengaged from each other, so that the safety of the infant or the like seated on the child seat can be easily enhanced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a first embodiment example of the present invention.

FIG. 2 is a perspective view of an essential part of the first embodiment.

FIG. 3 is a perspective view of an essential part of a second embodiment of the present invention.

FIG. 4 is a perspective view of an essential part of a third embodiment of the present invention.

FIG. 5 is a perspective view of an essential part of a fourth embodiment of the present invention.

FIG. 6 is an explanatory diagram of the use of the fourth embodiment.

FIG. 7 is a perspective view of an essential part of a fifth embodiment of the present invention.

FIG. 8 is a perspective view of an essential part of a sixth embodiment of the present invention.

FIG. 9 is a schematic side view of a conventional device.

FIG. 10 is an enlarged vertical cross-sectional view of a main part of the conventional device.

[Explanation of symbols]

2 pipes 6 seat back 7 seat cushion 8 arms 9 latch 10 strikers 11 bracket 12 Lower surface 13 Sides 20 floors 21 striker 22 convex

Claims (4)

[Claims] 1. A striker fixed near the lower end of a seat back and a rear end of a seat cushion that are closely opposed to each other and fixed to a vehicle body, an attachment member attached to a child seat and engaged with the striker, and the attachment member. A child seat locking device having a stopper fixed to the vehicle body side, the stopper being installed at least one of above and below the locking portion with the striker. 2. The child seat locking device according to claim 1, wherein the stopper is installed below the locking portion and extends toward the vehicle front side from the vehicle front side end portion of the striker. 3. The child seat locking system according to claim 2, wherein the stopper has a lower surface portion disposed below the striker and side surface portions that respectively stand up from the lower surface portion with the striker sandwiched in the vehicle width direction. apparatus. 4. The child seat locking device according to claim 3, wherein the vehicle front side end portions of the both side surface portions have a shape that widens in the vehicle width direction toward the vehicle front side.