CEN TR 16042-2010 Bicycles - Replies to requests for interpretation of EN 14765《自行车 答复解释请求EN 14765》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationPD CEN/TR 16042:2010Bicycles Replies to requestsfor interpretation of EN 14765PD CEN/TR 16042:2010 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementa

2、tion of CEN/TR16042:2010.The UK participation in its preparation was entrusted to TechnicalCommittee GME/25, Cycles.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract.

3、 Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 69603 9ICS 43.150Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards Policy and Strategy Committee on 31 October 2010.Amendm

4、ents issued since publicationDate Text affectedPD CEN/TR 16042:2010TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16042 September 2010 ICS 43.150 English Version Bicycles - Replies to requests for interpretation of EN 14765 Bicyclettes - Rponses aux demandes dinterprtation sur lEN 147

5、65 Fahrrder - Antworten auf Anfragen fr die Auslegung der EN 14765 This Technical Report was approved by CEN on 29 May 2010. It has been drawn up by the Technical Committee CEN/TC 333. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denma

6、rk, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISAT

7、ION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 16042:2010: EPD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 2 Contents Page Foreword 3Intro

8、duction .41 Scope 62 Agreed interpretations and no action decisions 62.1 Clause 4.4.1 Security of screws (interpretation) 62.2 Clause 4.7.4 Brake-block security test (no action) .62.3 Clause 4.7.7.3 Back-pedal brake requirement (no action) 72.4 Clause 4.11.3.1 Requirement (no action) 7Bibliography 8

9、PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 3 Foreword This document (CEN/TR 16042:2010) has been prepared by Technical Committee CEN/TC 333 “Cycles”, the secretariat of which is held by UNI. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

10、rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 4 Introduction This Technical Report contains replies to requests for interpretations with regard to the understanding of clauses in EN 14765:2005+A1:2008

11、. The replies concern those requests which have resulted in an interpretation, or a decision that no action is required as the standard is sufficiently clear. An interpretation does not have the same status as the text of the standard, nor can it overrule the text of the standard. However, following

12、 an interpretation should give assurance that the relevant clause of the standard has been correctly applied. An interpretation shall only be regarded as a clarification of the meaning of the standard. Requests for interpretation Requests for interpretations may be submitted by a CEN member body thr

13、ough its national committee or by a CEN/TC 333 liaison (but not directly by an individual or a company) in accordance with the interpretation protocols agreed by CEN/TC 333 and resumed in Doc. CEN/TC 333 N 182. The requests are then channelled to the relevant TC 333 working party which will deal wit

14、h the request. A request for an interpretation may lead to: a) An interpretation of the standard This should reflect a reasonable interpretation of how the standard should be used, taking into account: 1) the wording of the standard; 2) the rationale of the standard; 3) the history of the standard.

15、b) A no action decision This is applicable when it is agreed that the standard appropriately specifies how a cycle or a component shall be assessed. c) A proposal for an amendment of the standard This is applicable when it is agreed that the standard is deficient in some way. NOTE The interpretation

16、s and no-action decisions are published in this Technical Report, which will be updated on a regular basis. Proposals for amendments will be progressed as new work item proposals in accordance with CEN rules. Answers to requests for interpretations Since requests for interpretations are submitted th

17、rough a CEN member body, it is assumed that the member body will keep itself informed about decisions concerning the request and its progress and will itself inform the originator of the request as appropriate. Disclaimer The interpretations have been derived by the Interpretation Panel Group. The i

18、nformation contained herein is for guidance only and does not reflect the formal approval by CEN or CEN member bodies. It PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 5 should be noted that the interpretations are neither part of any standard nor have been referenced in the Official Journal of the Euro

19、pean Union. PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 6 1 Scope The purpose of this Technical Report is to provide replies to requests for interpretations of EN 14765:2005+A1:2008, Bicycles for young children Safety requirements and test methods. 2 Agreed interpretations and no action decisions 2.1

20、Clause 4.4.1 Security of screws (interpretation) Question According to the text, locking devices are required for the following: suspension system; generator attachment; brake-mechanism to frame, fork or handlebar; mud-guards to frame or fork; saddle to seat-pillar (except in EN 14765). The requirem

21、ent does not apply to: handlebar to handlebar stem; seat pillar to frame; luggage carrier to frame or fork. What is a locking device (thread locking compound)? Interpretation The locking devices mentioned as examples in the standard shall not be considered to be an exhaustive list. Also other means

22、of locking devices can be acceptable provided that they do not unintentionally become unlocked. NOTE 1 Thread locking compound was discussed and considered as acceptable for locking of e.g. levers to handlebars. NOTE 2 This decision is also applicable to the corresponding clauses in the Technical Re

23、ports related to EN 14764, EN 14766 and EN 14781. REQ 004-10-2007 (Sweden) 2.2 Clause 4.7.4 Brake-block security test (no action) Question During the test the wheel will lock and the tyre will slip on the surface. A brake that does not fulfil this requirement will not fulfil the ordinary brake-perfo

24、rmance test. PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 7 The test can be carried out as follows: apply the brakes according to the standard; rotate the wheel by hand forward and rearwards five times. Is the test meaningful? Should the testing procedure be revised? Reply The test mainly aims at check

25、ing if the brake-pad can be released when the bicycle is moved backwards with the brakes applied. This situation will not occur during the other brake tests. The test shall remain. NOTE This decision is also applicable to the corresponding clauses in the Technical Reports related to EN 14764, EN 147

26、66 and EN 14781. REQ 005-10-2007 (Sweden) 2.3 Clause 4.7.7.3 Back-pedal brake requirement (no action) Question EN 14764 specifies to apply the load on the left pedal. There is no precise indication about it in EN 14765. Reply To leave as it is. REQ 053-10-2007 (France) 2.4 Clause 4.11.3.1 Requiremen

27、t (no action) Question The standard EN 14766 only specifies: “apply a static force of 370 N at one point on the rim“. On the contrary EN 14781 states: “once at one spoke and once between two spokes“. We suggest to use the method mentioned in EN 14781 for all types of bicycles. Reply Standard is clea

28、r: the load is applied once at each location mentioned (once on the spoke and once between two consecutive spokes). The load is applied on the sprocket side. NOTE This decision is also applicable to the corresponding clauses in the Technical Reports related to EN 14764, EN 14766 and EN 14781. REQ 05

29、1-10-2007 (France) PD CEN/TR 16042:2010CEN/TR 16042:2010 (E) 8 Bibliography 1 EN 14765:2005+A1:2008, Bicycles for young children Safety requirements and test methods 2 EN 14764, City and trekking bicycles Safety requirements and test methods 3 EN 14766, Mountain-bicycles Safety requirements and test

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