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Child seats that protect children's safety

Last update date September 1, 2020

 The child's body type and adult body shape are very different, and seat belts made for adults are not enough to protect children in the event of a traffic accident. A child seat is a device necessary to protect the child from the impact of a traffic accident.
 However, according to the results of a nationwide survey on the use of child seats conducted by the National Police Agency and the Japan Automobile Federation (JAF) between June 1 and June 16, 2019, the national average usage rate for all children under the age of 6 is only 70.5%.
 In addition, 47.6% of the attached child seats were properly mounted, and 42.2% of infants who used child seats were able to sit properly.
 Attaching the child seat properly and sitting properly leads to the child's safety.

Type of child seat

 There are three types of child seats: newborns and baby/infant (baby seats), infants (child seats), and schoolchild (junior seats). Make sure you choose the one that suits your child's physique.

For newborns and infants (baby seat)


(From the Ministry of Land, Infrastructure, Transport and Tourism website)

Weight less than 10 kilograms
70 centimeters or less
Age 0 to 1 year old

Point

  1. It is designed to be installed backward so that the baby/infant with an undeveloped skeleton, etc., can be supported by the entire body from the head to the back. Don't install it positively.
  2. Since the passenger seat is generally equipped with an airbag, when the airbag swells, the airbag hits the back of the child seat, it is very dangerous. (Excluding vehicles that do not have a passenger seat airbag or have a device that can stop the operation of the airbag.) Please install it in the driver's seat or the rear seat behind the passenger seat.

For infants (child seat)


(From the Ministry of Land, Infrastructure, Transport and Tourism website)

Weight 9 to 18 kilograms
Height 65 to 100 centimeters or less
Age 1 to 4 years old

Point

  1. Use this when the infant's neck sit down and sits on their own.
  2. Child seats for infants will be installed positively.

For schoolchild (Junior seat)


(From the Ministry of Land, Infrastructure, Transport and Tourism website)

Weight 15 to 36 kilograms
Height 135 cm or less
Age 4 to 10 years old

Point

  1. According to law, children under the age of 6 are required to use child seats, but seat belts work effectively for a body of about 140 cm or more, so even if they are over 6 years old, they are still small. Let's use junior seats.
  2. The standard for using a junior seat without a backrest is 22kg and a height of 125cm. If you do not meet the criteria, use a junior seat with a headrest or backrest.

Please select a safe child seat.

 The current safety standard, ECE R44/04, came into effect on October 1, 2006, and after a preparation period, was fully applied on July 1, 2012.
 Until June 2012, child seats of the old standard could be sold, and in addition to those approved in Japan, Western and American standards were also sold, but since July 2012, Only those that have been approved under the new standard can be sold.
 Child seats that meet the standards are marked by the E mark as shown in the figure below.
 In addition, the latest safety regulations, R129, is now adopted, and will be approved in accordance with the safety standards of R129.

    (From the Ministry of Land, Infrastructure, Transport and Tourism website)


 There are no legal restrictions on child seats with the old standard (self-marked) child seats, but child seats that meet the current standards will be satisfied with the evaluation of higher safety performance.

    (From the Ministry of Land, Infrastructure, Transport and Tourism website)

Installed child seats properly

 There are two ways to fix the child seat: "ISO-FIX fixed type" and "Seat belt fixed type". In each case, read the instructions carefully and install it correctly.
 Conventionally, many of them are fixed seat belts, often used due to incorrect installations, which may not be able to perform their original safety performance. As a result, the ISO-FIX fixed type type that fixes the seat and child seat on the car side are now being marketed using common mounting equipment.
 Passenger cars newly sold since July 2012 (capacity less than 10 passengers) are equipped with a common mounting device compatible with ISO-FIX child seats. (Some models are also equipped with passenger cars before July 2012.)
 Since the ISO-FIX child seat is easy to install, it is said that there are fewer errors when mounting than the type that is fixed to the seat using a car seat belt.

Points to note

A child seat that fits your car.

 Not all child seats are fitted on every car. Check if it can be installed with reference to the "Child Seat Conformity Table by Model" issued by the manufacturer, etc., and select a child seat that matches your car.

Child seats should be installed in the rear seat as much as possible.

 The passenger seat is generally equipped with an airbag, and when activated, the impact is large and dangerous. If you have to attach a child seat to the passenger seat, slide the seat back as much as possible to reduce the impact from the airbag.
※ As mentioned above, the baby seats for newborns and baby/infant (baby seats) must be installed backwards must not be attached to the passenger seat.

Don't forget to adjust your shoulder belt

 If you install a child seat and let your child sit, do not forget to adjust your shoulder belt. If the shoulder belt is loose, the child may get out of the child seat and the shoulder belt may hang on the neck and cause injury. 
 Also, if you are wearing a thick coat so that your body adheres to the child seat, take it off.

Beware of burns

 When parking in the scorching sun, the child seat itself, buckle, belt metal fittings, etc. may be hot. If you want to sit down, touch each part and check it.

For inquiries to this page

Road and Highway Bureau General Affairs Department Road Safety and Bicycle Policy Division

Phone: 045-671-2323

Phone: 045-671-2323

Fax: 045-663-6868

Email address: do-kotsujitensya@city.yokohama.jp

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Page ID: 730-612-344

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