JP3340597B2 - Automotive child safety seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child safety seat for a car placed on a car seat, and more particularly, to a child's body which can be sufficiently protected even in the event of a collision. The present invention relates to an automobile child safety seat.

[0002]

2. Description of the Related Art A child safety seat for an automobile is provided with a safety belt for firmly holding a child's body on a seat. Typically, the safety belt comprises a pair of shoulder belts extending over the child's shoulders,
It consists of a crotch belt extending from under the crotch. In the event of a car crash, the safety belt keeps the child firmly in the seat and prevents the child from being seriously injured.

[0003] Although the safety belt holds the child's body firmly, the child's head is completely free. Therefore, in the event of a collision, the body is firmly held on the seat by the safety belt, but only the head moves rapidly and largely back and forth or left and right. This impact can have a detrimental effect on the child's head, especially on the brain.

[0004] When a vehicle is running, usually a safety belt is always worn. Conventional safety belts simply physically hold the child's body from the shoulders and crotch, and the safety belt feel is not always comfortable for the child. Ideally, it is desirable to be able to give the child the feeling of the mother when wearing the safety belt.

An object of the present invention is to provide a child safety seat for an automobile which can sufficiently protect a child's head even when a collision accident occurs.

It is another object of the present invention to provide a means for holding a child in a seat so that a soft feeling as if the mother is holding it can be given.

[0007]

SUMMARY OF THE INVENTION A child safety seat for a vehicle according to the present invention is formed so as to protrude forward from both sides of a seat, a backrest, and a backrest, and has a storage space therein. A pair of side walls, a pair of airbags which are housed in the storage space of each side wall in a folded state, and bulge outward from the side walls by gas injection, and both ends are fixed to the child safety seat. A belt for holding the pair of airbags bulged by gas injection from the front. The belt is connected to an outer surface of a pair of airbags folded and stored in the storage space, and a belt portion located between the two connection portions is detachably extended along an upper end of the backrest portion. Are there.

In the child safety seat for an automobile having the above-described structure, a pair of airbags inflates forward due to gas injection. The pair of airbags press the child from the front by being held by the belt. The airbag gives the child a soft, secure feel.

In one embodiment, a notch is formed in the front of each side wall of the child safety seat to communicate with the storage space,
The belt is connected to the airbag through the cut, and the airbag bulges out of the cut by gas injection. According to this embodiment, since the airbag bulges out of the cut, the child safety seat is not particularly damaged.

In one embodiment, the child safety seat for an automobile includes an inflator for injecting gas in response to an impact force at the time of a collision. The airbag receives the gas ejected from the inflator and inflates to the outside. Preferably, the size and mounting position of the airbag are selected so that the inflated airbag presses the child's head from the front. According to this embodiment, the child's body can be sufficiently protected by the airbag even if a great impact force is received in a car collision accident. In particular, the child's head can be reliably protected. In the case of this embodiment, the side wall of the child safety seat may be broken when the airbag is inflated.

In one embodiment, the child safety seat for a vehicle is provided with a gas inlet for injecting gas into the airbag from outside. According to this embodiment, the airbag can be inflated not only at the time of collision but also at the time of necessity. For example, the size and mounting position of the airbag may be selected such that the inflated airbag holds the torso below the child's head. One use of this embodiment is to keep the child's body in the airbag at all times. In this case, the child can have a sense of security with a soft touch.

In one embodiment, the belt portion extending along the upper end of the backrest is removably mounted by a hook-and-loop fastener. By using the hook-and-loop fastener, the belt portion can be easily removed from the upper end of the backrest. In particular, if the joining force of the hook-and-loop fastener is weak, in the event of a collision, the belt automatically comes off the upper end of the backrest portion due to the force associated with the inflation of the airbag.

In one embodiment, the airbag has a guide loop, and the belt is slidably inserted through the guide loop. In this case, it is not necessary to accurately determine the connection point between the belt and the airbag.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a child safety seat 1 for an automobile includes a seat 2, a backrest 3, and a backrest 3.
And a pair of side walls 4, 5 formed so as to protrude forward from both side edges.

As is apparent from FIG. 3, which is a sectional view seen from above, storage spaces are formed inside the pair of side walls 4 and 5, and air bags 8 and 9 are provided in each of the storage spaces. It is stored in a folded state. Further, as shown, inflators 10 and 11 for generating inflation gas are arranged in the side walls 4 and 5, respectively. Inflator 1
Nos. 0 and 11 inject inflation gas into the airbags 8 and 9 in response to a large impact force generated when a car crashes.

Referring to FIG. 1, cuts 6 and 7 are formed on the front surface of each of the side walls 4 and 5 so as to communicate with the storage space.
The air bags 8 and 9 receive the gas ejected from the inflator and swell to the outside through the cuts 6 and 7.

The child safety seat 1 further includes a belt 12 for holding a pair of airbags 8, 9 bulged by gas injection from the front. Belt 12
Are fixed to the outer surface of the child safety seat 1 for automobiles by fasteners 15 and 16. As is apparent from FIG. 3, the belt 12 is a pair of airbags 8, 9 that are folded and stored in storage spaces in the side walls 4, 5.
Connected to the outer surface of the Specifically, guide loops 13 and 14 are attached to the outer surfaces of the airbags 8 and 9, and the belt 12 slidably passes through the guide loops 13 and 14. In addition, the belt 12
The cuts 6 and 7 formed in the front surface of each side wall 4 and 5 are inserted into the cutouts 6 and 7 and connected to the airbags 8 and 9, and thereafter, are again drawn out from the cuts 6 and 7. A pair of guide loops 1
The portion of the belt located between 3 and 14 extends removably along the upper end of the backrest 3. In particular,
The belt portion is connected to the backrest 3 via the hook-and-loop fastener 17.
Is detachably attached to the upper end of the.

The child safety seat 1 for an automobile shown in FIGS. 1 to 3 can sufficiently protect a child, particularly the head, in the event of an automobile collision. Therefore, the size and mounting position of the airbag are selected so that the inflated airbag presses the child's head from the front. In FIG. 3, the state in which the airbags 8 and 9 are expanded to the outside is illustrated by imaginary lines.

FIG. 1 shows a state in which the airbag is folded and housed in each of the side walls 4, 5, and FIG. 2 shows a state in which the airbag is inflated to the outside. The operation from the state shown in FIG. 1 to the state shown in FIG. 2 will be described below.

Referring to FIG. 3, when a car crashes and a large impact force is applied to child safety seat 1 for a car, inflators 10 and 11 inject inflation gas toward air bags 8 and 9. . The airbags 8 and 9 bulge outward to the front through cuts 6 and 7 formed on the front surfaces of the side walls 4 and 5. At this time, the side walls 4 and 5 may be broken as the air bags 8 and 9 expand.

Since the belts 12 are connected to the airbags 8, 9, the belts 12 are also pushed forward as the airbags 8, 9 bulge forward. By this operation, the bonding by the surface fastener 17 is released. Finally, as shown in the imaginary line of FIG. 3 and FIG. 2, the belt 12 holds the pair of airbags 8 and 9 from the front.

As shown in FIGS. 2 and 3, when the air bags 8, 9 are completely inflated,
9 holds the child's head from the front. In this way, the head of the child is well protected by the airbags 8, 9 even in the event of a car crash.

Note that a conventional safety belt including a shoulder belt and a crotch belt can be used with the airbag of the present invention. In the event of a collision, a safety belt consisting of a shoulder belt and a crotch belt holds the child's body firmly on the seat, and the airbag of the present invention holds the child's head immobile.

The embodiment shown in FIGS. 1 to 3 has a structure in which the air bag opens in response to a large impact force generated in the event of a collision, but only in an emergency. Alternatively, the air bag may be opened as needed. In such an embodiment, a child safety seat gas inlet is provided. When gas is injected into the air bag from the outside through the gas inlet, the air bag swells to the outside through the cut in the side wall. This embodiment is shown in FIG.

In FIG. 4, the same reference numerals as those shown in FIGS. 1 to 3 indicate the same or corresponding elements. In the embodiment shown in FIG.
The sizes and mounting positions of the airbags 28 and 29 are selected so that the airbags 8 and 29 hold the torso below the child's head. According to this embodiment, since the airbag holds the child's body firmly on the seat while the vehicle is running, the child can be given a soft touch.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing a state after an airbag is opened from the state shown in FIG. 1;

FIG. 3 is a sectional view of a main part of the embodiment of FIG. 1 as viewed from above.

FIG. 4 is a perspective view showing another embodiment according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Child safety seat for automobiles 2 Seat part 3 Backrest part 4, 5 Side wall 6, 7 Notch 8, 9 Air bag 10, 11 Inflator 12 Belt 13, 14 Guide loop 15, 16 Fastener 17 Surface fastener 28, 29 Air bag

Claims (8)

(57) [Claims] 1. A seat, a backrest, a pair of side walls formed so as to protrude forward from both side edges of the backrest, and having a storage space therein, and folded in the storage space of each of the side walls. A pair of airbags which are housed in a state of being inflated and bulged outward from the side wall by gas injection, and a pair of airbags whose both ends are fixed to the child safety seat and which are bulged by gas injection. A belt for holding the bag from the front, wherein the belt is connected to the outer surfaces of the pair of airbags that are folded and stored in the storage space, and is located between the two connection portions. A child safety seat for a vehicle, wherein the belt portion removably extends along an upper end of the backrest. 2. A notch is formed in a front surface of each of the side walls to communicate with the storage space, the belt is connected to the airbag through the notch, and the airbag is cut by gas injection. The child safety seat for an automobile according to claim 1, wherein the child safety sheet swells from the outside. 3. The airbag according to claim 1, further comprising an inflator for ejecting gas in response to an impact force at the time of collision, wherein the airbag receives the gas ejected from the inflator and inflates to the outside. Child safety seat for car. 4. The child safety seat for an automobile according to claim 3, wherein the size and the mounting position of the airbag are selected so that the inflated airbag presses the head of the child from the front. 5. The child safety seat for an automobile according to claim 2, wherein the child safety seat is provided with a gas inlet for injecting gas into the airbag from outside. 6. The vehicle according to claim 5, wherein the size and the mounting position of the airbag are selected so that the inflated airbag holds a body below a child's head. Child safety seat. 7. The child safety seat for an automobile according to claim 1, wherein the belt portion extending along the upper end of the backrest portion is detachably attached by a hook-and-loop fastener. . 8. The child safety for an automobile according to claim 1, wherein the airbag has a guide loop, and the belt is slidably inserted through the guide loop. Sheet.