美国脚轮标准

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1、4TESTAPPARATUS測試儀器Thissectionestablishesthebasicdesignrequirementsforthevariousapparatustypesusedtotestcastersandwheels.Refertosections5–8forthetestingproceduresandacceptancecriteriaforspecifictypesofcastersasfollows:以下所述是關於用以測試輪子的多種設備之基本設計需要。Section5-8是關於測試特

2、殊輪子之過程及標準接受度。Section5–FurnitureChairCasters家具(椅子)用小腳輪Section6–FurnitureNon-ChairCasters家具(非椅子)用小腳輪Section7–IndustrialCasters工業用小腳輪Section8–InstitutionalandHospitalBedCasters醫療床用小腳輪Notethatallrecordinginstruments,weights,loads,gages,timingdevicesandmeasuringde

3、vicesshallbecalibratedonaregularbasis.紀錄所有的器具、重量、裝載量、尺寸時，計時儀器及測量儀器都應該要使用相同的規格。4.1SequenceofTestsforAllCastersInitialWheelPlayTest(4.2)初期輪胎運轉測試InitialSwivelPlayTest(4.3)初期轉環運轉測試RollabilityTest(4.4)轉動能力測試ElectricalResistanceTest(4.5)電氣抵抗測試InitialWheelBrakeEffic

4、iencyTest(4.6)初期輪胎煞車效果測試InitialSwivelLockEfficiencyTest(4.6)初期轉環鎖定效果測試Brakingand/orLockingDeviceFatigueTest(4.7)煞車及鎖定設備疲勞檢測DynamicTest(4.4)力學測試FinalWheelBrakeEfficiencyTest(4.6)最終輪胎煞車效果測試FinalSwivelLockEfficiencyTest(4.7)最終轉環鎖定效果測試FinalWheelPlayTest(4.2)最終輪胎運

5、轉測試FinalSwivelPlayTest(4.3)最終轉環運轉測試StaticTest(4.8)靜態測試SideLoadTest(4.9)側邊裝載測試Caster–VerticalImpactTest(4.10)小腳輪垂直衝擊測試Wheels–VerticalImpactTest(4.10)輪胎垂直衝擊測試4.2WheelPlayTest輪子運轉測試Thissectionestablishesthebasicrequirementsforanapparatustomeasurewheelplayatthebe

6、ginningofthetestsequenceandattheendofthetestsequence.以下所述是關於使用設備來測量檢查輪胎運轉(開始及結束)所需要的基本設備。4.2.1Thetestfixtureshallbesoconstructedastorigidlyfixthecasterassemblyinahorizontalorverticalposition.用來測試的設備需要被設計的能夠牢固的以水平或垂直的方式固定小腳輪。4.2.2Asuitablemeasuringdeviceaccura

7、teto0.001"(0.0254mm),shallbeclampedtothefixturetorecordtheamountofmovementasthewheelistiltedfromsidetoside.於測試時，必須使用一個測量儀器(精準度0.0254mm)夾緊於被測試的輪子，用以記錄輪子傾斜的次數。4.2.3Themeasurementshallbetakenatthefarthestpointfromandparalleltotheaxle(RefertoFigure656.)測試時須使用距軸最遙

8、遠的點且須與軸平行。Figure56:WheelPlayTestApparatus輪子運轉測試儀器4.3SwivelPlayTest轉環運轉測試Thissectionestablishesthebasicrequirementsforanapparatustomeasuretheswivelplayatthebeginningofthetestsequenceandatt