DIN EN ISO 4210-4-2015 Cycles - Safety requirements for bicycles - Part 4 Braking test methods (ISO 4210-4 2014) German version EN ISO 4210-4 2014《自行车 自行车的安全要求 第4部分 制动试验方法 (ISO 421.pdf

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1、January 2015 Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 43.150!%?D=“2283326www.din.deDDIN EN ISO 4210-4Cycles Safety requirements for bicycles Part 4: Braking test methods (ISO 4210-4:2014);English version EN ISO 4210-4:2014,English translation of DIN EN ISO 4210-4:2015-01Fahrrder Sicherheitstechnische Anforderungen an Fahrrder Teil 4: Prfverfahren fr

3、Bremsen (ISO 4210-4:2014);Englische Fassung EN ISO 4210-4:2014,Englische bersetzung von DIN EN ISO 4210-4:2015-01Cycles Exigences de scurit des bicyclettes Partie 4: Mthodes dessai de freinage (ISO 4210-4:2014);Version anglaise EN ISO 4210-4:2014,Traduction anglaise de DIN EN ISO 4210-4:2015-01Toget

4、her with DIN EN ISO 4210-1:2015-01, DIN EN ISO 4210-2:2015-01, DIN EN ISO 4210-3:2015-01,DIN EN ISO 4210-5:2015-01, DIN EN ISO 4210-6:2015-01, DIN EN ISO 4210-7:2015-01,DIN EN ISO 4210-8:2015-01 and DIN EN ISO 4210-9:2015-01 supersedes DIN EN 14764:2006-03,DIN EN 14766:2006-09 and DIN EN 14781:2006-

5、03See start of applicationSupersedes: see belowwww.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3701.15 DIN EN ISO 4210-4:2015-01 2 A comma is used as the decimal marker. Start of application The start of application of this standar

6、d is 2015-01-01. DIN EN 14764:2006-03, DIN EN 14766:2006-09 and DIN EN 14781:2006-03 may be used in parallel until 2015-07-31. National foreword This standard includes safety requirements within the meaning of the Produktsicherheitsgesetz (ProdSG) (German Product Safety Act). This document (EN ISO 4

7、210-4:2014) has been prepared by Technical Committee ISO/TC 149 “Cycles” in collaboration with Technical Committee CEN/TC 333 “Cycles” (Secretariat: UNI, Italy). The responsible German body involved in its preparation was the DIN-Normenausschuss Sport- und Freizeitgert (DIN Standards Committee Sport

8、s Equipment), Working Committee NA 112-06-01 AA Fahrrder fr allgemeine und sportliche Benutzung. Where this standard has been identified by the Ausschuss fr Produktsicherheit (German Committee for Product Safety) and reference to it has been published in the Gemeinsames Ministerialblatt (German Join

9、t Ministerial Gazette) by the Bundesanstalt fr Arbeitsschutz und Arbeitsmedizin (BAuA) (German Federal Institute for Occupational Safety and Health), it is to be presumed that cycles which comply with this standard fulfil the relevant health and safety requirements. This document includes the correc

10、ted version of ISO 4210-4:2014 and incorporates the following changes: a) a change of date in Subclauses 4.6.1., 4.6.3.6, 4.6.3.9, 4.6.3.10, 4.6.3.11 and 4.6.5.7 e); b) two technical corrections in Annex A. The DIN Standards corresponding to the International Standards referred to in this document a

11、re as follows: ISO 4210-1 DIN EN ISO 4210-1 ISO 4210-2 DIN EN ISO 4210-2 Amendments This standard differs from DIN EN 14764:2006-03, DIN EN 14766:2006-09 and DIN EN 14781:2006-03 as follows: a) the standard has been adopted as an EN ISO Standard; b) the structure of the standard series has been chan

12、ged as regards components to avoid the need for having a separate standard for each type of bicycle. Previous editions DIN 79100: 1976-04, 1984-03, 2000-04 DIN 79100-2: 1992-02, 1998-10 DIN 79100-2/A1: 1995-08 DIN EN 14766: 2006-02, 2006-09 DIN EN 14764: 2006-03 DIN EN 14781: 2006-03 DIN EN ISO 4210

13、-4:2015-01 3 National Annex NA (informative) Bibliography DIN EN ISO 4210-1, Cycles Safety requirements for bicycles Part 1: Terms and definitions DIN EN ISO 4210-2, Cycles Safety requirements for bicycles Part 2: Requirements for city and trekking, young adult, mountain and racing bicycles DIN EN I

14、SO 4210-4:2015-01 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4210-4 July 2014 ICS 43.150 English Version Cycles - Safety requirements for bicycles - Part 4: Braking test methods (ISO 4210-4:2014, Corrected version 2014-11-01) Cycles - Exigences de scu

15、rit des bicyclettes - Partie 4: Mthodes dessai de freinage (ISO 4210-4:2014, Version corrige 2014-11-01) Fahrrder - Sicherheitstechnische Anforderungen an This European Standard was approved by CEN on 21 June 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu

16、late 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 standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European S

17、tandard 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 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the

18、national standards bodies of 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, Norway, Poland, Portugal, Romania,

19、 Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any

20、 means reserved worldwide for CEN national Members. Ref. No. EN ISO 4210-4:2014 EEN 14781:2005Supersedes EN 14764:2005, EN 14766:2005, Fahrrder - Teil 4: Prfverfahren fr Bremsen (ISO 42104:2014, korrigierte Fassung 2014-11-01) Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references

21、 5 3 Terms and definitions .5 4 Test methods 5 4.1 Brake lever grip dimensions .5 4.2 Brake levers Position of applied force 9 4.3 Brake-block and brake-pad assemblies Security test .11 4.4 Hand-operated braking-system Strength test 11 4.5 Back-pedal braking system Strength test 11 4.6 Braking perfo

22、rmance .12 4.7 Brakes Heat-resistance test .29 Annex A (informative) Explanation of the method of least squares for obtaining the line of best fit and 20 % limit lines for braking performance linearity .30 Bibliography 33 DIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 2 Foreword This document (EN

23、ISO 4210-4:2014) has been prepared by Technical 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

24、by endorsement, at the latest by January 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

25、identifying any or all such patent rights. 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. EN ISO 4210 consists of the following parts, under the gen

26、eral title Cycles Safety requirements for bicycles: Part 1: Terms and 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: W

27、heels and rims test methods Part 8: Pedals and drive system test methods Part 9: Saddles and seat-post test methods According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulg

28、aria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tu

29、rkey and the United Kingdom. Endorsement notice The text of ISO 4210-4:2014, Corrected version 2014-11-01 has been approved by CEN as EN ISO 4210-4:2014 without any modification. DIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 3 IntroductionThis International Standard has been developed in response

30、 to the demand throughout the world. The aim is to ensure that bicycles manufactured in compliance with this International Standard will be as safe as is practically possible. The tests are designed to ensure the strength and durability of individual parts as well as of the bicycle as a whole, deman

31、ding high quality throughout and consideration of safety aspects from the design stage onwards.The scope is limited to safety considerations, and has specifically avoided standardization of components.If the bicycle is to be used on public roads, national regulations apply.For the purpose of improve

32、ment of repeatability and reproducibility, and considering the applicability to all types of bicycle and the size and influence of the operator, the machine test method reflects todays state of the art and is preferred to the track test method.Unless there is evidence of improvement of the test trac

33、k method in the future, make this method informative for the next revision. Users of this International Standard are invited to provide their feedback to the ISO/TC 149/SC 1.DIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 4 1 ScopeThis part of ISO 4210 specifies the braking test methods for ISO 421

34、0-2.2 Normative referencesThe following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (inclu

35、ding 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 for city b) a velocity-recording device (accurate to within 2 %) to record the velocity at the commencement of b

36、raking;c) a distance recording system (accurate to within 1 %) to record the braking distance;d) a water spray system, to provide wetting of the braking surface, consisting of a water reservoir connected by tubing to a pair of nozzles at the front wheel and a pair of nozzles at the rear wheel. A qui

37、ck-acting on/off valve shall be included for control by the rider. Each nozzle shall provide a flow of water at ambient temperature of not less than 4 ml/s. Details of the positions and directions of nozzles for rim brakes, hub brakes, band brakes, disc brakes, and back-pedal brake are given in Figu

38、res 7 to 13;NOTE Figures 7 and 8 for rim brakes show side-pull callipers but the same arrangements apply to centre-pull callipers and cantilever brakes.e) a brake-actuation indicating system to record independently when each lever or pedal is actuated.4.6.3.3 Mass of bicycle, rider, and instrumentat

39、ionThe combined mass of the bicycle, the rider, and the instrumentation shall be 100 kg.When wet condition braking tests are performed, the combined mass can decrease throughout the test due to water consumption, but it shall not be less than 99 kg at the end of the valid test runs.Where a manufactu

40、rer specifies that their bicycle can carry a mass such that the sum of that mass plus the mass of the bicycle is in excess of 100 kg (60 kg for young adults) to some value M, apply M as total weight.Any extra weight shall be positioned above the rear wheel and in front of the rear axle.4.6.3.4 Force

41、 applied to the brake leversa) Magnitude and position of force on brake leversDIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 13 Apply a handgrip force not exceeding 180 N at the point as specified in Figure 5. Check before and after each series of test runs to verify the lever force.b) Optional br

42、ake-force application deviceIt is permissible to use a test mechanism to operate the brake lever, and when such a device is used, it shall meet the requirements of 4.6.3.4 item a) and shall additionally control the rate of application of the brake lever force such that 63 % of the intended lever for

43、ce is applied in not less than 0,2 s.4.6.3.5 Running in the braking surfacesA running-in process shall be conducted on every brake before performance testing is carried out.Apply the brakes for not less than 3 s to maintain steady deceleration while the bicycle is being ridden at a speed of approxim

44、ately 16 km/h. Repeat this operation 10 times.4.6.3.6 Test method Test runs under dry conditionsPedal the test bicycle until the specified test velocity is attained (see ISO 4210-2:2014, Table 2). Then stop pedalling and apply the brakes. The bicycle shall be brought to a smooth, safe stop see ISO 4

45、210-2:2014, 4.6.8.2 item a).4.6.3.7 Test method Test runs under wet conditionsThe method shall be as given in 4.6.3.6, with the addition that wetting of the brake system(s) shall commence not less than 25 m prior to the commencement of braking and shall continue until the bicycle comes to rest. Exce

46、ssive amounts of water can be swept from the test track surface between runs.4.6.3.8 Number of valid test runsa) If the gradient of the track is less than 0,2 %, the following runs shall be made:1) five consecutive valid runs under dry conditions;2) two acclimatization runs under wet conditions (res

47、ults not recorded);3) five consecutive valid runs under wet conditions.b) If the gradient of the track lies between 0,2 % and 0,5 %, the following runs shall be made:1) six consecutive valid runs under dry conditions with alternate runs in opposite directions;2) two acclimatization runs under wet co

48、nditions (results not recorded);3) six consecutive valid runs under wet conditions with alternate runs in opposite directions.A rest period not exceeding 3 min can be taken between successive runs.DIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 14 Key1 water nozzles2 fork crown3 front tee-piece4 wheel rim5 direction of the wheel rotationFigure 7 Water nozzles for rim-brake (front)DIN EN ISO 4210-4:2015-01 EN ISO 4210-4:2014 (E) 15 Dimensions in millimetresKey1 water