BS EN ISO 4210-7-2014 Cycles Safety requirements for bicycles Wheels and rims test methods《自行车 自行车的安全要求 车轮和轮辋试验方法》.pdf

1、BSI Standards PublicationBS EN ISO 4210-7:2014Cycles Safety requirementsfor bicyclesPart 7: Wheels and rims test methods (ISO4210-7:2014)BS EN ISO 4210-7:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 4210-7:2014. Together with BS EN ISO 4210-1:2014, B

2、S EN ISO 4210-2:2014, BS EN ISO 4210-3:2014, BS EN ISO 4210-4:2014, BS EN ISO 4210-5:2014, BS EN ISO 4210-6:2014, BS EN ISO 4210-8:2014, BS EN ISO 4210-9:2014 it supersedes BS EN 14764:2005, BS EN 14766:2005 and BS EN 14781:2005, which are withdrawn.The UK participation in its preparation was entrus

3、ted to Technical Committee GME/25, Cycles.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standard

4、s Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 78283 1 ICS 43.150 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2014.Ame

5、ndments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4210-7 July 2014 ICS 43.150 Supersedes EN 14764:2005, EN 14766:2005, EN 14781:2005English Version Cycles - Safety requirements for bicycles - Part 7: Wheels and rims test m

6、ethods (ISO 4210-7:2014) Cycles - Exigences de scurit des bicyclettes - Partie 7: Mthodes dessai des roues et des jantes (ISO 4210-7:2014) Fahrrder - Sicherheitstechnische Anforderungen an Fahrrder - Teil 7: Prfverfahren fr Laufrder und Felgen (ISO 4210-7:2014) This European Standard was approved by

7、 CEN on 21 June 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standard

8、s may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notif

9、ied to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Ice

10、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Mana

11、gement Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4210-7:2014 EBS EN ISO 4210-7:2014EN ISO 4210-7:2014 (E) 3 Foreword This document (EN ISO 4210-7:2014) has been prepared by T

12、echnical Committee ISO/TC 149 “Cycles“ in collaboration with Technical Committee CEN/TC 333 “Cycles” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Januar

13、y 2015, and conflicting national standards shall be withdrawn at the latest by July 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent righ

14、ts. This document supersedes EN 14764:2005, EN 14766:2005, EN 14781:2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the fo

15、llowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands

16、, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4210-7:2014 has been approved by CEN as EN ISO 4210-7:2014 without any modification. BS EN ISO 4210-7:2014ISO 4210-7:2014(E) ISO 2014 All rights rese

17、rved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Test methods . 14.1 Rotational accuracy . 14.2 Wheel/tyre assembly Static strength test Test method 34.3 Wheels Front/rear wheel retention devices secured Test method . 44.4 Greenhouse effec

18、t test for composite wheels Test method . 4Annex A (informative) Wheel/tyre assembly Fatigue test 6BS EN ISO 4210-7:2014ISO 4210-7:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing

19、 International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liais

20、on with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Direc

21、tives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that som

22、e of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declara

23、tions received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information abou

24、t ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 149, Cycles, Subcommittee SC 1, Cycles and major sub-assemblies.This first edition of ISO 4210-7, together

25、with ISO 4210-1, ISO 4210-2, ISO 4210-3, ISO 4210-4, ISO 4210-5, ISO 4210-6, ISO 4210-8, and ISO 4210-9, cancels and replaces ISO 4210:1996, which has been technically revised.ISO 4210 consists of the following parts, under the general title Cycles Safety requirements for bicycles: Part 1: Terms and

26、 definitions Part 2: Requirements for city and trekking, young adult, mountain and racing bicycles Part 3: Common test methods Part 4: Braking test methods Part 5: Steering test methods Part 6: Frame and fork test methods Part 7: Wheels and rims test methods Part 8: Pedals and drive system test meth

27、ods Part 9: Saddles and seat-post test methodsiv ISO 2014 All rights reservedBS EN ISO 4210-7:2014ISO 4210-7:2014(E)IntroductionThis International Standard has been developed in response to demand throughout the world, and the aim has been to ensure that bicycles manufactured in compliance with this

28、 International Standard will be as safe as is practically possible. The tests have been designed to ensure the strength and durability of individual parts as well as of the bicycle as a whole, demanding high quality throughout and consideration of safety aspects from the design stage onwards.The sco

29、pe has been limited to safety considerations, and has specifically avoided standardization of components.If the bicycle is to be used on public roads, national regulations apply. ISO 2014 All rights reserved vBS EN ISO 4210-7:2014ISO 4210-7:2014(E)BS EN ISO 4210-7:2014Cycles Safety requirements for

30、bicycles Part 7: Wheels and rims test methods1 ScopeThis part of ISO 4210 specifies wheel and rim test methods for ISO 4210-2.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated reference

31、s, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4210-1, Cycles Safety requirements for bicycles Part 1: Terms and definitionsISO 4210-2:2014, Cycles Safety requirements for bicycles Part 2: Requirements f

32、or city and trekking, young adult, mountain and racing bicyclesISO 4210-3:2014, Cycles Safety requirements for bicycles Part 3: Common test methods3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4210-1 apply.4 Test methods4.1 Rotational accuracyThe ru

33、n-out tolerances represent the maximum variation of the position of the rim when measured perpendicular to the axle at a suitable point along the rim (see Figure 1 and Figure 2) (i.e. full indicator reading) of a fully assembled and adjusted wheel during one complete revolution about the axle withou

34、t axial movement. Both sides of the rim shall be measured and the maximum value shall be taken as result.For city and trekking, mountain, and young adult bicycles, the measurement of both axial run-out (lateral) and radial run-out (concentricity) shall be done with a tyre fitted and inflated to the

35、maximum inflation pressure, but for rims where concentricity cannot be measured with the tyre fitted, it is permissible to make measurements with the tyre removed.For racing bicycles, the measurement of both axial run-out (lateral) and radial run-out (concentricity) shall be measured at the same tim

36、e as shown in Figure 2 and a tyre is not required to be fitted.INTERNATIONAL STANDARD ISO 4210-7:2014(E) ISO 2014 All rights reserved 1BS EN ISO 4210-7:2014ISO 4210-7:2014(E)ABKeyA rim with tyre 5 instrument standB rim without tyre 6 roller indicator1 dial-gauge (concentricity) 7 rim with tyre2 inst

37、rument stand 8 rim without tyre3 hub axle support 9 dial-gauge (concentricity; alternative positions)4 dial-gauge (lateral run-out) 10 instrument standFigure 1 Wheels/tyre assembly Rotational accuracy for city and trekking, young adult, and mountain bicycles2 ISO 2014 All rights reservedBS EN ISO 42

38、10-7:2014ISO 4210-7:2014(E)Key1 instrument stand 5 hub axle support2 dial-gauge (concentricity) 6 dial-gauge (lateral run-out)3 rim 7 instrument stand4 spoke 8 roller indicatorFigure 2 Wheel Rotational accuracy for racing bicycles4.2 Wheel/tyre assembly Static strength test Test methodClamp and supp

39、ort the wheel suitably as shown in Figure 3. Apply a pre-load of 5 N on the rim at one spoke perpendicular to the plane of the wheel as shown in Figure 3. Record the zero position of the rim at the point of load application as shown. Then apply a static force of F given in Table 1 for a duration of

40、1 min. Reduce the load to 5 N and allow a 1 min settling time. After this settling time and with the 5 N load still applied, re-measure the position of the rim.The wheel shall be fitted with the appropriate size tyre and inflated to the maximum inflation pressure.In the case of a rear wheel, apply t

41、he force from the sprocket side of the wheel as shown in Figure 3.Repeat the above measurement once between two spokes.See Annex A for fatigue testing. ISO 2014 All rights reserved 3BS EN ISO 4210-7:2014ISO 4210-7:2014(E)Table 1 Forces on rimForces in newtonsBicycle typeCity and trek-king bicyclesYo

42、ung adult bicyclesMountain bicyclesRacing bicy-clesForce F250 250 370 250Key1 clamping fixture2 wheel/tyre assembly3 drive sprocketsFigure 3 Wheel/tyre assembly Static strength test4.3 Wheels Front/rear wheel retention devices secured Test methodApply a force of 2 300 N distributed symmetrically to

43、both ends of the axle for a period of 1 min in the direction of the removal of the front and rear wheel independently.4.4 Greenhouse effect test for composite wheels Test methodA fully assembled wheel, fitted with the appropriate size tyre and inflated according to the lower value between maximum in

44、flation pressure recommended on the rim or the tyre, shall be controlled before the test; lateral run-out has to be controlled according to ISO 4210-2:2014, 4.10.1 and maximum widths of the rim have to be reported.A specific bench as shown in Figure 5 could be used to measure the maximum width all a

45、round the rim with tyre and pressure (continuous measuring).The wheel is laid down on the ground of a climate chamber, which has been pre-heated at 80 C, leant on axle and tyre support points, sprocket side of the wheel, as shown in Figure 4, during 4 h. At the end of 4 h, the wheel should be taken

46、out of the climate chamber and allowed to cool down at room temperature during 4 h to re-measuring the rim width and its conformance to ISO 4210-2:2014, 4.11.6.1 and 4.11.6.2.4 ISO 2014 All rights reservedBS EN ISO 4210-7:2014ISO 4210-7:2014(E)Figure 4 Wheel laid down on tire and axleFigure 5 Maximu

47、m rims width measuring ISO 2014 All rights reserved 5BS EN ISO 4210-7:2014ISO 4210-7:2014(E)Annex A (informative) Wheel/tyre assembly Fatigue testA.1 Wheel/tyre assembly Fatigue test for city and trekking bicyclesA.1.1 RequirementsWhen tested by the method described in A.1.2, there should be no frac

48、tures, detachments, or visible cracks in any part of the wheel, no loss of air pressure in the tyre due to damage from the wheel to the tyre or the inner tube (when fitted), and the undamaged tyre should remain on the rim.A.1.2 Test methodAssemble the wheel, tyre, and inner tube (when fitted) and in

49、flate the tyre to 90 % of the maximum inflation pressure.Mount the wheel/tyre assembly free to rotate on its axle, and free to move in a vertical direction. Load the wheel assembly by means of dead weights against a drum equipped with equally spaced, transverse, metallic slats such that the radial force applied to the wheel/tyre assembly is 640 N. The wheel and drum axes shall be vertically aligned.An example of a test arrangement is shown in Figure A.1, in which the wheel a