JPH0224354Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a child restraint device for restraining and protecting a child occupant riding in a vehicle.

[Background Art] A vehicle is equipped with a restraining webbing that is attached to a passenger seated on a seat.

This restraint webbing is designed to be properly attached when an adult occupant is seated on the seat, but is not necessarily properly placed for a child occupant.

For this reason, in the past, a restraint system body was mounted on the vehicle seat and attached to the seat using restraint webbing, and the child occupant was seated on the restraint system body, and a special restraint device provided on the restraint system body was used to ensure that the child occupant was in an appropriate protective state. A child restraint device has been proposed.

The restraint device provided in this child restraint system is configured to place a child occupant in a restrained state by engaging a tongue plate with a buckle device at the tip of a crotch belt. This crotch belt passes through the child occupant's crotch. Therefore, when the child occupant is seated, the buckle device may be caught between the restraint device body and the child occupant when the child occupant is seated on the crotch belt, and the occupant may find it troublesome to pull out the crotch belt.

[Purpose of the invention] Taking the above facts into consideration, the object of the present invention is to provide a child restraint system in which the crotch belt is unlikely to be caught between a seated child occupant and the restraint system body.

[Summary of the invention] In the child restraint system according to the present invention, the crotch belt is retractable into the seat plate of the restraint system body, so that the crotch belt is retracted before the child occupant is seated. It also prevents the crotch belt from being caught between the child occupant and the restraint system body, and after the child occupant is seated, it is placed upright from the child occupant's crotch, making it easier to engage the tongue plate with the buckle device. I have to.

[Embodiment of the invention] As shown in FIGS. 1 and 2, the child restraint device according to this embodiment has a structure in which a child restraint webbing 12, which is a restraint device, is attached to a restraint device main body 10.

The restraint device main body 10 includes a seat plate 14, a backrest 16, and a pair of side walls 1, which are integrally molded from synthetic resin or the like.
8 and 20 are provided.

The seat plate 14 is mounted on a seat base 22 of a vehicle seat attached to a vehicle as shown in FIG.
It is now coming into contact with the Side walls 18, 20
are connected to both sides of the seat plate 14 and the backrest 16, and are provided upright on the sides of the child occupant 26 seated on the seat plate 14, so as to restrain the child occupant 26 from moving in the lateral direction of the vehicle. There is.

The child restraint webbing 12 includes a pair of continuous webbings 28, 30 and a crotch belt 32. One end of each of the continuous webbings 28 and 30 is pulled out below the seat plate 14 through an opening 34 formed in the seat plate 14, and an anchor member 35 is provided below the seat plate 14 to allow the seat plate 14 to be pulled out upwardly. is prevented (Figure 3). The other ends of the continuous webbings 28 and 30 are pulled out to the back of the back part 16 through an opening 36 formed in the back part 16, and are wound around an anchor member (not shown) on the back of the back part 16. When it is reversed, its tip is pulled out to the front of the back rest part 16 and locked to the length adjuster 38, thereby preventing the back rest part 16 from being pulled out to the front. Backrest part 16
is provided with an opening 40 in addition to the opening 36,
The locking positions of the continuous webbings 28 and 30 can be changed depending on the physique of the child occupant seated.

The middle part of the continuous webbing 28 is inserted into the long hole 44 formed in the tongue plate 42, whereby the continuous webbing 28 locks the tongue plate 42, and the tongue plate 42 moves in the longitudinal direction of the continuous webbing 28. It's becoming possible.
This tongue plate 42 has a buckle engaging protrusion 4.
2A is protruded.

On the other hand, the intermediate portion of the continuous webbing 30 passes through a long hole 48 in the tongue plate 46, thereby allowing the tongue plate 46 to move in the longitudinal direction of the continuous webbing 30. A connecting protrusion 46A projects from the tongue plate 46, and a long through hole 50 is bored in the connecting protrusion 46A through which the buckle engaging protrusion 42A passes.

The crotch belt 32 will be explained in detail.
As shown in FIG. 3, the crotch belt 32 includes a buckle device 54 and crotch webbing 56. The buckle device 54 is the tongue plate 4
It has a built-in lock mechanism (not shown) that engages and holds the second buckle engagement protrusion 42A.

The other end of the crotch webbing 56, one end of which is secured to the buckle device 54, is wound around a pin 60 extending over the base member 58, and then sewn and secured to the intermediate portion.

A cover 61 protruding from the base member 58 surrounds the crotch webbing 56, thereby allowing the crotch webbing 56 and the buckle device 54 to stand up from the seat plate 14.

The base member 58 is housed within a cylindrical body 62 disposed within the seat plate 14. A flange 64 provided at one end of the cylinder body 62 is fixed to the seat plate 14, and the vicinity of the flange 64 forms a narrow portion to prevent the base member 58 from being pulled out. Further, a compression coil spring 68 is interposed between the base member 58 and the bottom plate 66 of the cylindrical body 62, and biases the base member 58 in the extrusion direction. Therefore, the buckle device 5
4 and the cover 61 protrude from the seat plate 14.

The base member 58 has a protrusion 70 projecting downward and having an enlarged diameter portion at the tip.
It is intended for insertion into an opening 72 formed in the.
An engaging piece 73 protrudes from the vicinity of this opening 72, and is adapted to grip the protrusion 70 to be inserted with elastic force. A slit 71 is formed in the longitudinal direction of the projection 70 so that the outer diameter can be expanded or contracted.
Therefore, when the crotch belt 32 is pushed into the seat plate 14, the protrusion 70 engages with the opening 72, thereby maintaining the crotch belt 32 stored in the seat plate 14. In this state, only the buckle device 54 protrudes from the seat plate 14. However, if the buckle device 54 is pulled out forcefully, the protrusion 70 will be removed from the opening 7.
2, and the crotch belt 32 protrudes from the seat plate 14 again as shown in FIG.

Note that the buckle device 54 has a release button 7.
4, so that the engagement of the tongue plate 42 can be released by a pressing operation by the occupant.

If the buckle device 54 is inserted into the buckle device 54 after passing the buckle engaging protrusion 42A of the tongue plate 42 into the elongated hole 50 of the tongue plate 46, the child occupant 26 seated on the seat plate 14 will be fitted with a five-point webbing. be able to. That is, the continuous webbing 28 between the opening 36 and the tongue plate 42 and the continuous webbing 30 between the opening 36 and the tongue plate 48 form a pair of shoulder webbings.
Continuous webbing 28 between tongue plate 42 and opening 34 and opening 34 with tongue plate 46
The continuous webbing 30 between the child occupant 26 acts as a pair of lap webbing, and the crotch belt 32 is placed between the crotches of the child occupant 26.

As shown in detail in FIG. 2, the seat plate 14 of this embodiment has a pair of slits 76 and 78 formed on both sides. The slits 76 and 78 communicate with the outside at the front end surface of the seat plate 14, that is, at the front end of the vehicle when the restraint device main body 10 is attached, and are rectangular spaces in plan view.

Therefore, if the middle part of the restraint webbing 80 attached to the vehicle seat is inserted into these slits 76 and 78 as shown by the imaginary lines in FIGS. 1 and 2, the middle part of the restraint webbing 80 will be attached to the seat. The seat plate 14 is not exposed to the upper surface of the plate 14.
A restraint webbing 80 is disposed below the child occupant 26 who is seated.

As shown in FIG. 1, one end of the restraining webbing 80 is secured to an anchor plate 84 provided on the vehicle side wall 82, and the other end is wound up by a biasing force onto a winding device 86 attached to the vehicle side wall 82. ing. This winding device 86 preferably has a built-in inertia lock mechanism that instantly stops pulling out the restraining webbing 80 in the event of a vehicle emergency.

The intermediate portion of the restraining webbing 80 passes through a long hole 90 in the tongue plate 88, so that the tongue plate 88 can be engaged with a buckle device 92 that is erected from the vehicle body. Further, the restraining webbing 80 between the tongue plate 88 and the winding device 86 is folded back by a through ring 94 attached to the vehicle side wall 82. Therefore, when an adult occupant seated on the adult seat formed by the seat base 22 and the seat back 24 engages the tongue plate 88 with the buckle device 92,
A lap webbing is attached between the anchor plate 84 and the buckle device 92, and a shoulder webbing is attached between the buckle device 92 and the through ring 94 (the attached state is not shown).

The upper end portions of the side walls 18 and 20 of the restraint device main body 10 serve as abutting portions for the restraint webbing 80. That is, the restraining webbing 80 extends from the slit 76 to the tongue plate 88, and the restraining webbing 8 extends from the slit 78 to the anchor plate 84.
0 is bent at the upper end of this side wall 18, thereby ensuring that the restraint device body 10 is securely attached to the seat base 2.
2. It can be fixed to the seat bag 24.

Further, L-shaped protrusions 96 are provided on the outside of the side walls 18 and 20, respectively, and a slit 98 is formed between the side walls 18 and the outside of the side wall 18. This slit 9
8 opens toward the rear of the vehicle when the restraint device main body 10 is attached. Into this slit 98 is inserted an intermediate portion of the restraining webbing 80 which is folded back at the upper ends of the side walls 18, 20 and extends to the buckle device 92 and the anchor plate 84. This slit 98 is particularly effective when the restraint device main body 10 is attached to the vehicle seat in the opposite direction to that shown in FIG. That is, when a child occupant with a small physique, such as an infant, is accommodated in the restraint system main body 10, it is preferable that the child passenger gets on the vehicle in a state facing the rear of the vehicle. It becomes necessary to install it in the opposite direction to the state shown in the figure. In this case, the slit 98 can prevent the restraint device main body 10 from moving inadvertently toward the front of the vehicle.

Note that the side walls 18 and 20 have a seat plate 14 and a backrest 16.
Through-holes 100 are drilled corresponding to the connection parts with the restraining webbing 8 as necessary.
It is now possible to pass 0.

Next, the operation of this embodiment will be explained.

The restraint device main body 10 is placed on the seat base 22 as shown in FIG.
Attach it to the seat base 22 and seat back 24 by using the following steps. In this installation, the restraining webbing 80 is attached to the side walls 18 and 2 as shown by the imaginary line in FIG.
0 and into the slits 76 and 78, the tongue plate 88 may be engaged with the buckle device 92.

As a result, the middle part of the restraining webbing 80 passes under the seat plate 14, and the seat plate 14
Since the child occupant seated on the seat does not come into contact with the restraining webbing 80, the sitting comfort is improved and a comfortable riding condition can be achieved.

After the child occupant 26 is seated on the seat plate 14, the continuous webbings 28, 30 are placed in front of the body, the buckle engaging protrusion 42A is passed through the elongated hole 50, and then engaged with the buckle device 54. , 30 are installed.

Before the child occupant 26 is seated, the crotch belt 32
If the child occupant 26 is pushed into the seat plate 14 in advance and stored, it will not interfere with the seating operation and the crotch belt 32 will not be caught between the child occupant 26 and the seat plate 14. After sitting, the crotch belt 32 is pulled out to the position shown by the solid line in FIG. 3, and the tongue plate 42 can be easily engaged.

In the event of a vehicle emergency, the continuous webbings 28 and 30 restrain the child occupant 26, and the restraint device main body 10 is securely attached to the seat base 2 by the restraint webbing 80.
2. Since it is fixed to the seat back 24, the child occupant 26 can be restrained reliably.

When the child occupant 26 exits the vehicle, the release button 74 may be pressed. That is, when the continuous webbings 28 and 30 are released, the child occupant 26
can get off the vehicle regardless of the restraint webbing 80, and the tongue plate 88 is attached to the buckle device 9.
2 may remain engaged. In this case, if the crotch belt 32 is retracted to the seat plate 14, it is easy to get off the vehicle.

In a vehicle in which the buckle device 92 is arranged below the upper end surface of the seat base 22 and the shoulder webbing and lappi webbing of the restraint webbing 80 can be separated, the buckle webbing is passed through the through hole 100 and locked by the buckle device 92. By doing so, the restraint device main body 10 can also be attached.

Note that the present invention is not limited to a structure in which the crotch belt is stored in the seat plate 14 while leaving the buckle device 52, but may be any structure in which the crotch belt is stored in a manner that does not interfere with the movement of the child occupant, and a structure that maintains the retracted state is also applicable. This is not limited to the above embodiment, and may be omitted in some cases.

[Effects of the invention] As explained above, in the child restraint device according to the invention, since the crotch belt is retractable,
This has an excellent effect of not interfering with the movement of child occupants when getting on and off the vehicle.

[Brief explanation of drawings]

FIG. 1 is a side view showing how the child restraint device according to the present invention is attached, FIG. 2 is a perspective view of the child restraint device, and FIG. 3 is a sectional view of the crotch belt. 10... Restraint device body, 12... Child restraint webbing, 14... Seat plate, 16... Back rest, 26
...Child passenger, 28...Continuous webbing, 30...
...Continuous webbing, 32...Kurotsuchi belt, 4
2...Tongue plate, 54...Batsukuru, 56
...Kurotsuchi webbing, 58...Base member,
62... Cylindrical body, 68... Compression coil spring.

Claims (1)

[Scope of utility model registration request] A child restraint device in which a main body having a seat plate for seating a child occupant, a backrest part, and a side wall part is mounted on a vehicle seat, and the main body is attached to the vehicle seat using a restraint webbing provided on the vehicle, the main body being attached to the vehicle seat. A child restraint device characterized in that an upright crotch belt can be stored within the seat plate.