ASTM F1625-2000(2008) Standard Specification and Test Method for Rear-Mounted Bicycle Child Carriers《后悬挂式自行车儿童座椅的标准规范和试验方法》.pdf

1、Designation: F 1625 00 (Reapproved 2008)An American National StandardStandard Specification and Test Method forRear-Mounted Bicycle Child Carriers1This standard is issued under the fixed designation F 1625; the number immediately following the designation indicates the year oforiginal adoption or, i

2、n the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers child carriers that mount to therear of bicycles in ord

3、er to transport children or accessory loadswith a maximum weight of 18 kg (40 lb). This specificationdoes not apply to child carriers that mount in front of thehandlebars, or to the top tube, head tube, or behind thehandlebars in front of the rider.NOTE 1In the instructions, the manufacturer must wa

4、rn the rider thata load added to the bicycle will lessen the stability and alter the ridingcharacteristics of the bicycle. This complication is particularly importantwhen riding with children who are near the high end of the weight range.1.2 The following safety hazards caveat pertains only to thete

5、st method portions, Sections 5, 6, and 7, of this specification:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicabili

6、ty of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray (Fog) Apparatus2.2 ISO Standards:ISO/TC149/SC1 N368, Luggage Carriers for Bicycles3ISO/TC149/SC1 N369, Child Seats for Bicycles, Concepts,Safety Requirements and Testing32.3 Gov

7、ernment Standards:Title 16, Code of Federal Regulations, Part 1500.44, Flam-mability4Title 16, Code of Federal Regulations, Part 1500.48, SharpPoints4Title 16, Code of Federal Regulations, Part 1500.49, SharpEdges416 CFR 1501, Small Parts416 CFR 1303, Lead in Coatings43. Terminology3.1 Definition:3.

8、1.1 bicycle child carriera seating device, the shape ofwhich is adapted to the seated position of a child and mountsto the rear of the bicycle, which keeps the child in acomfortable position during the ride.4. Requirements4.1 GeneralChild carriers shall be designed and manufac-tured in such a way th

9、at components with which the child orrider come into contact do not cause injuries during normaluse, or when used in accordance with the manufacturersinstructions. Surfaces must be free from burrs, sharp edges, andpoints; if such are present they must be covered by protectivecoverings. No openings w

10、ith which the childs hands can comein contact shall have dimensions larger than 6 mm (0.236 in.)but also smaller than 13 mm (0.512 in.), that is, holes withdimensions between 0.236 and 0.512 in. (6 and 13 mm) areforbidden. Child carriers must be equipped with a rear reflector.The manufacturer must w

11、arn the rider that a load added to thebicycle will lessen the stability and alter the riding character-istics of the bicycle.4.2 Structure:4.2.1 AssemblyWhen assembled in accordance with theinstructions provided by the manufacturer, the seat componentsmust be firmly joined and fixed.4.2.2 EquipmentC

12、hild carriers shall be equipped with thefollowing equipment:4.2.2.1 Footrests,4.2.2.2 Backrest,4.2.2.3 Armrests (that may be extensions of the sides of theseat surface),4.2.2.4 Protective devices that prevent contact of hands andfeet with moving or movable components of the bicycle whichcould cause

13、injury, and1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.10 onBicycles.Current edition approved April 1, 2008. Published May 2008. Originallyapproved in 1995. Last previous edition approved i

14、n 2000 as F 1625 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standar

15、ds Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from Superintendent of Documents, U.S. Government PrintingOffice, Washington, DC 20402.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4

16、.2.2.5 Belt or other capturing devices designed to restrainthe child from standing in or leaving the carrier. Buckles, ifused, must be difficult for the child passenger to open.4.2.3 AttachmentThe attachment process for connectingthe seat portion of the carrier either to dedicated mountinghardware o

17、r to a luggage carrier, and attachment of themounting hardware or the luggage carrier to the bicycle frame,shall be of a simple and secure procedure. If tools are requiredfor mounting, mounting must be accomplished with commonhousehold tools, and must offer no reasonable opportunity ofincorrect moun

18、ting.4.2.4 Test CriteriaAfter testing in accordance with Sec-tions 5 and 6 of this specification the child carrier shall showno visible signs of fracture, nor any deformation or displace-ment that would impair the function of the child carrier or thebicycle, as defined by the allowable amounts set f

19、orth inSections 5 and 6.4.3 Security of Seat Assembled to Bicycle:4.3.1 If the means of attachment of the carrier to the bicycleis within easy reach of the child, and also is of a type that thechild may be able to loosen, then there shall be a secondarydevice to restrict movement of the carrier, eit

20、her by providingan additional and independent attachment or by ensuring thatloosening the primary attachment will not fully release theconnection.4.3.2 Child carriers that do not attach directly to the bicycleseat tube, such as rack-mounting models, shall have anadditional attachment device connecti

21、ng the seat portion eitherto a frame tube or to the saddle pillar, with sufficient strengthto limit rearward movement of the seat.4.4 Dimensions:4.4.1 Dimensions of the interior of the carrier seating areashall be adequate for the seated child at the upper range of theweight limitation.4.4.2 The bac

22、krest must have a minimum height of 350 mm(13.8 in.).4.4.3 The armrests must be high enough to keep the childstable in lateral directions.4.5 Materials:4.5.1 Plastics or other synthetic materials, if used, shall bestabilized against ultraviolet radiation and resistant to ozone.4.5.2 The carrier shal

23、l be protected against corrosion andtested in accordance with salt spray test defined in PracticeB117, for a period of 96 h. Tested components shall show novisible evidence of corrosion or deterioration which couldjeopardize structural integrity of the entire assembly.The testedunit shall continue t

24、o operate in accordance with the manufac-turers written instructions.5. Environmental Temperature Tests5.1 GeneralPerform the tests in this section on all carriersto determine whether there are any adverse affects on thestrength and function of the carrier under conditioned environ-ments.5.1.1 Condu

25、ct these environmental temperature tests priorto the dynamic load tests that follow.5.2 Resistance to High Temperatures:5.2.1 Store the carrier for at least 4 h, but not more than 24h at a temperature of 50 6 3C (122 6 5F).5.2.2 Examine the carrier for damage or distortion thatcould affect the safet

26、y or function of the carrier.5.2.3 Damage or distortion that could affect the safety orfunction of the carrier constitutes failure of the test.5.3 High-Temperature Drop Test:5.3.1 Store the carrier for at least 4 h, but not more than 24h, at a temperature of 50 6 3C (122 6 5F).5.3.2 Remove the carri

27、er from the hot environment andmount it on the test fixture depicted in Fig. 1 that holds thelowest point of the underside of the seating area of the carriershell at a height of 1.00 6 0.01 m (39.37 6 0.39 in.) above aconcrete floor. The bottom of the fixture has a pivoting devicethat allows the fix

28、ture to rotate until it contacts the floor. Themass of the drop arm of the fixture is 11 + 0.5 0 kg(24 + 1.0 0 lb). Within 1 min after removal from the condi-tioned environment, release the carrier under gravity from restto one side or the other onto a flat concrete surface, as if thebicycle to whic

29、h it was mounted fell over.5.3.3 Examine the carrier for damage or distortion thatcould affect the safety or function of the carrier.5.3.4 Damage or distortion that could affect the safety orfunction of the carrier constitutes failure of the test.5.4 Low-Temperature Resistance:5.4.1 Store the carrie

30、r for at least 4 h, but not more than 24h, at a temperature of 7 6 3C (20 6 5F).NOTE 1Figures are intended only to indicate one possible configura-tion for test fixtures and are not intended to be adequate for fabrication.FIG. 1 Child Carrier Drop Test FixtureF 1625 00 (2008)25.4.2 Examine the carri

31、er for damage or distortion thatcould affect the safety or function of the carrier.5.4.3 Damage or distortion that could affect the safety orfunction of the carrier constitutes failure of the test.5.5 Low-Temperature Drop Test:5.5.1 Store the carrier for at least 4 h, but not more than 24h, at a tem

32、perature of 7 6 3C (20 6 5F).5.5.2 Remove the carrier from the cold environment andmount it on the test fixture depicted in Fig. 1 that holds thelowest point of the underside of the seating area of the carriershell at a height of 1.00 6 0.01 m (39.37 6 0.39 in.) above aconcrete floor. The bottom of

33、the fixture has a pivoting devicethat allows the fixture to rotate until it contacts the floor. Themass of the drop arm is 11 + 0.5 0 kg (24 + 1.0 0 lb).Within 1 min after removal from the conditioned environment,release the carrier under gravity from rest to one side or theother onto a flat concret

34、e surface, as if the bicycle to which itwas mounted fell over.5.5.3 Examine the carrier for damage or distortion thatcould affect the safety or function of the carrier.5.5.4 Damage or distortion that could affect the safety orfunction of the carrier constitutes failure of the test.6. Strength: Dynam

35、ic Load Tests6.1 PurposeThere are three reasons for the dynamic loadtests: (a) to determine whether fasteners become loosened byvibration; (b) to determine whether the carrier shifts in positionduring the tests; and (c) to determine whether damage or cracksoccur anywhere in the carrier or the mounti

36、ng system as aresult of the tests.6.2 Vibration Test:6.2.1 General Test Method:6.2.1.1 Mount the carrier securely to the fixture depicted inFig. 2. The fixture is part of an apparatus that is capable ofproviding the motion described in 6.2.2 and 6.2.4.6.2.1.2 Load the carrier with a system that has

37、a mass of18+10kg(40+20lb), such as sand bags. The center ofgravity of the added mass shall be no more than 152 mm (6.0in.) above the bottom surface of the seating area. Secure theload with the retention system provided with the carrier. Markthe position of the carrier on the fixture, and the positio

38、ns of theclosures on all straps.6.2.2 Vertical Vibration TestThe fixture depicted in Fig. 2is set up so that the total vertical movement at the top of thevertical tube is 10 mm (0.39 in.), consisting of 5 mm up and 5mm down from the central position in non-sinusoidal motion.The “bump” is an instanta

39、neous rise and instantaneous fallfrom a 1-in. (25-mm) wide cleat. An actual 19-in. (480-mm)road bicycle frame or a 16-in. (410-mm) mountain bicycleframe can be attached to the mounting structure indicated in thefigure. Adjust the motor so that the rate of complete verticalcycles is 7 Hz (420 cycles

40、per minute). Continue the test for atotal of 42 000 complete vertical cycles.6.2.3 InspectionInspect the carrier for damage, deforma-tion, and displacement. Displacement at any attachment pointwhere the carrier is attached to the bicycle shall not exceed 10mm (0.394 in.), and no cracking or splittin

41、g of any carriercomponents shall have occurred.6.2.4 Lateral Vibration TestIn this test, tilt the carrier withthe18+10-kg (40+20-lb) load sinusoidally from side toside, simulating a bicyclist riding up a steep hill that requiresthe rider to stand and pedal vigorously.The fixture has a systemthat til

42、ts it alternately, in sinusoidal fashion, from center to 8on either side of center, at a frequency of 0.5 Hz (30cycles/min). The fixture is of such size that the lowest level ofthe carrier seat is 800 mm (31.5 in.) above the rotational axis.Tilt the system through 50 000 complete cycles.6.2.5 Inspec

43、tionInspect the carrier for damage, deforma-tion, and displacement. Displacement at any attachment pointwhere the carrier is attached to the bicycle shall not exceed 10mm (0.394 in.). No cracking or splitting of any carriercomponents shall have occurred.7. Additional Test Criteria7.1 FlammabilityAll

44、 components of the carrier shall meetthe flammability requirements defined in Title 16, Code ofFederal Regulations, Part 1500.44.NOTE 1Figures are intended only to indicate one possible configura-tion for test fixtures and are not intended to be adequate for fabrication.FIG. 2 Child Carrier Vibratio

45、n and Lateral Sway Test FixtureF 1625 00 (2008)37.2 Sharp PointsAll components of the carrier shall meetthe requirements of Title 16, Code of Federal Regulations, Part1500.48, regarding sharp points that could cause puncture orlaceration injuries.7.3 Sharp EdgesAll components of the carrier shall sa

46、t-isfy the requirements of Title 16, Code of Federal Regulations,Part 1500.49, regarding sharp edges that could cause lacerationor avulsion injuries.7.4 Ambient Drop Test:7.4.1 Place the carrier in ambient conditions for a period ofat least 4 h.7.4.2 Mount the carrier on the test fixture depicted in

47、 Fig. 1that holds the lowest point of the underside of the seating areaof the carrier shell at a height of 1.00 6 0.01 m (39.376 0.39in.) above a concrete floor. The bottom of the fixture has apivoting device that allows the fixture to rotate until it contactsthe floor. The mass of the drop arm of t

48、he fixture is 11 + 0.5 0kg (24 + 1.0 0 lb). Release the carrier under gravity fromrest, rotating on the fixture until the upper back of the carrierstrikes the floor.7.4.3 Examine the carrier for damage or distortion thatcould affect the safety or function of the carrier.7.4.4 Damage or distortion th

49、at could affect the safety orfunction of the carrier constitutes failure.7.5 Retention System Pull Test:7.5.1 Attach a representative retention system, separatedfrom the carrier, to a device that pulls at the ends of the system.Orient a 16-in. (410-mm) section of the retention system sothat the fastening device is between the pulling ends.7.5.2 The ends of the 16-in. (410-mm) section of theretention system are pulled apart with a static load of45 + 2.0 0 kg (100 + 4.4 0 lb) for a period of 1 min.7.5.3 The retention system must re