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This standard is compulsory.
From the implementation date hereof, this standard replaces GB 14748-1993 "Safety Requirements for Wheeled Child Conveyances".
Compared with GB 14748-1993, the main changes of this standard are listed as follows:
——The application scope of the standard is revised;
——The definition for generic terms of wheeled child conveyance industry is revised;
——The general requirements (test sequence and the most unfavorable principle) and environmental requirements for the test are added;
——The limit requirements for specific transportable element content are revised;
——Technical requirements and judgment methods for dangerous crack, shearing and squeeze point, small parts, exposed projection and mechanical parts connection in structure part are added;
——The dimension requirements for some parts of the wheeled child conveyance are added;
——The stability test requirements and test methods are revised;
——The obstacle crossing test in the original standard is changed into handle strength test in the new standard, and partial test methods are changed;
——The technical requirements for folding device and locking device are revised;
——The performance test methods for parking device are revised;
——The reliability test methods of the integral harness and restraint system are revised;
——The dynamic endurance test is revised;
——The impact strength test is added;
——The requirements for plastic packaging bag are added;
——Various product information contents are added and revised; product mark and operation instruction are specified and required;
——The technical requirements for partial concepts and ambiguous requirements in the original standard are definite.
This national standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of National Technical Committee on Toy of Standardization Administration of China.
Drafting organizations of this standard: Certification Center of Light Industry Council, Intertek Testing Services Shenzhen Ltd., Goodbaby Child Products Co., Ltd., Lerado (Zhongshan) Industrial Co.Ltd., Guangdong Lemeida Group Co., Ltd. and Ningbo MYbaby Baby Items Manufacturing Co., Ltd.
Chief drafting staffs of this standard: Wang Tiejun, Lei Zaiming and Zhang Yanfen.
The previous editions of the standards replaced by this standard are as:
——GB 14748-1993.
NATIONAL STANDARD OF
THE PEOPLE'S REPUBLIC OF CHINA
中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)
GB 14748-2006
Safety Requirements for Wheeled Child Conveyances
兒童推車(chē)安全要求
1 Scope
This standard specifies the safety requirements and test methods for wheeled child conveyances ridden by one or more children.
This standard is not applicable to toy pushchair or pushchair designed for other special purposes.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document is applicable to this standard.
GB 6675-2003 "National Safety Technical Code for Toys"
3 Terms and Definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
Wheeled child conveyance
It refers to the pushchair designed for conveying one or more children and pushed by manpower.
3.2
Pram body
It refers to the flat-bottomed box structure with continuous surrounding, which is used for bearing one or more children and is mainly used for horizontal position.
3.3
Seat unit
It refers to the structure used for bearing one or more children and can be adjusted to reclined or inclined lying position.
3.4
Chassis
It has one or more handles for pushing. This wheel chassis is used to allocate one or more pram bodies or seat units.
3.5
Pram
It refers to the pushchair designed for conveying one or more flat lying children, including one chassis and one or more pram bodies.
3.6
Pushchair
It refers to the pushchair designed for conveying one or more seat children with movable and adjustable backrest, including one chassis and one or more seat units.
3.7
Convertible
It combines two performances of pram and pushchair and may carry out the transformation between pram body and seat unit.
3.8
Combination pushchair
It refers to the pushchair with multi-purpose combination possibility through installing pram body, seat unit and automobile chair to chassis or obtaining the corresponding function through special transformation.
3.9
Access zone
It refers to the zone can be touched around ridden children, which is specified for safety needs, shown as Figure 1.
In: mm
1) Seat unit 2) Pram body
Notes: 1) Seat unit
a) The zone outside 150mm radius arc surface below the cushion of the pushchair taking cushion edge as the axis is non-access zone. If having the closed armrest, the zone outside 150mm radius arc surface of cushion bottom and armrest outside taking top edge of armrest as the axis is non-access zone.
b) The zone outside 150mm radius arc surface taking both side edge of pushchair backrest as the axis is non-access zone.
c) The zone outside 550mm from seat unit upside to cushion is non-access area.
2) Pram body
a) The zone below pram body of pram and outside 150mm radius arc surface of top edge from fence outside to surrounding fences of pram body is non-access zone.
b) The zone outside 450mm from pram body upside to pram body bottom is non-access area.
Figure 1 Access Zone
3.10
Parking device
It refers to the device maintaining the pushchair in one resting position.
3.11
Locking device for the folding mechanism
It refers to the device preventing pushchair from accidental folding.
3.12
Restraint system
It refers to the system restricting the children in pushchair.
3.13
Waist belt
It refers to the belt around child waist after tying up.
3.14
Crotch strap
It refers to the strap preventing children forward slide out through two hips of the child.
3.15
Shoulder strap
It refers to the strap bypassing two shoulders of the child and used with waist belt matching.
3.16
Integral harness
It generally has two structures such as three-point type and five-point type: three-point type includes waist belt and crotch strap; five-point type includes waist belt, crotch strap and shoulder strap.
3.17
Canopy
It refers to the component preventing child head against climatic factor (such as sunshine and rain) effect when the child is in pram body or seat unit.
3.18
Mattress
It refers to the mattress ensuring children comfort, which is demountable or non-demountable.
3.19
Basket
It refers to basket or similar device on the pushchair, which is used for carrying other loads.
3.20
Footrest
It refers to the structure supporting the children's feet in pushchair.
4 Technical Requirements
4.1 Materials
4.1.1 Material Quality
All materials shall be clean and free from pollution through visual inspection. The material inspection shall adopt visual inspection instead of magnification inspection.
4.1.2 Maximum Limit of Specific Transportable Element
The parts and materials in access zone of wheeled child conveyance shall be tested according to 5.6 (test of specific transportable element); the corrected value for the test result of specific transportable element shall be in accordance with the maximum limit specified in Table 1.
Contents
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
4.1 Materials
4.1.1 Material Quality
4.1.2 Maximum Limit of Specific Transportable Element
4.1.3 Correction of Test Result
4.2 Metal Surface
4.3 Combustion Performance
4.4 Structure
4.4.1 Exposed Opening Pipe
4.4.2 Dangerous Crack, Shearing and Squeeze Point
4.4.3 Sharp Edge and Tip
4.4.4 Small Parts
4.4.5 Exposed Projection
4.4.6 Connection of Mechanical Parts
4.5 Basic Dimension
4.5.1 Minimum Internal Height of Pram Body
4.5.2 Angle of Seat Cushion and Backrest of Seat Unit as well as Height of Backrest
4.6 Applicable Age of Pushchair
4.7 Device with Pram Body and Seat Unit Connected on Chassis
4.8 Stability
4.9 Handle Strength
4.10 Parking Device
4.11 Folding Locking Device
4.12 Strength and Durability for the Connected Device of the Demountable Pram Body or Seat Unit
4.13 Restraint System
4.13.1 Strength of Restraint System
4.13.2 Performance Requirements of Regulating Mechanism
4.13.3 Strength of Safety Buckle
4.14 Wheel Strength
4.15 Dynamic Endurance Test
4.16 Impact Strength
4.17 Static Strength
5 Test Methods
5.1 Test Sample
5.2 Test Sequence
5.3 Most Unfavorable Principle
5.4 Test Instrument Precision and Test Environment
5.5 Test Weights
5.5.1 General Provisions
5.5.2 Test Weight A
5.5.3 Test Weight B
5.5.4 Test Weight C
5.6 Test of Specific Transportable Element
5.7 Dangerous Crack Measurement
5.8 Measurement for Minimum Internal Height of Pram Body
5.9 Measurement of Seat Cushion and Backrest Angle
5.10 Measurement of Backrest Height
5.11 Stability Test
5.11.1 Test Equipment
5.11.2 Stability Test Method
5.12 Strength Test for Handle
5.13 Performance Test of the Parking Device
5.13.1 Test Equipment
5.13.2 General Test Condition
5.13.3 Place the Pushchair Facing up on the Ramp
5.13.4 Place the Pushchair Facing down on the Ramp
5.13.5 Pushchair is Placed Vertically on the Ramp
5.13.6 Validity Test of the Wheel Moving
5.14 Reliability Test of the Locking Device for the Folding Mechanism
5.15 Locking Strength and Durability Test for the Connected Device of the Demountable Seat Unit or Pram Body
5.16 Reliability Test of the Integral Harness and Restraint System
5.16.1 Integral Harness System Strength
5.16.2 Performance of Integral Harness Regulating System
5.16.3 Strength of Safety Buckle
5.17 Strength Test of Wheel Installation
5.18 Dynamic Endurance Test
5.18.1 Test Equipment
5.18.2 Test Procedure
5.19 Impact Strength Test
5.20 Static Strength
5.21 Plug Gauge Test
7.1 General Requirements
7.2 Mark and Operation Instruction
7.2.1 Product Name
7.2.2 Product Model
7.2.3 Product Standard Serial Number
7.2.4 Applicable Age and Weight
7.2.5 Safety Cautions
7.2.6 Safe Handling Method and Explanation for the Assembling
7.2.7 Maintenance
7.2.8 Name and Address of Manufacturer
