BS PD CEN TR 16042-2010 Bicycles — Replies to requests nfor interpretation of EN 14765《自行车 有关EN 14765标准说明请求的回复》.pdf

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1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication PD CEN/TR 16042:2010 Bicycles Replies to requests for interpretation of EN 14765PD CEN/TR 16042:2010 PUBLISHED DOCUMENT National foreword This Published Document is the UK imp

2、lementation of CEN/TR 16042:2010. The UK participation in its preparation was entrusted 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

3、of a contract. Users are responsible for its correct application. BSI 2010 ISBN 978 0 580 69603 9 ICS 43.150 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 3

4、1 October 2010. Amendments issued since publication Date 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 din

5、terprtation sur lEN 14765 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

6、, Czech Republic, Denmark, 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 COMI

7、T EUROPEN DE NORMALISATION 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 16042:2010 CEN/TR 16042:2010 (E) 2 Conte

8、nts Page Foreword 3 Introduction .4 1 Scope 6 2 Agreed interpretations and no action decisions 6 2.1 Clause 4.4.1 Security of screws (interpretation) 6 2.2 Clause 4.7.4 Brake-block security test (no action) .6 2.3 Clause 4.7.7.3 Back-pedal brake requirement (no action) 7 2.4 Clause 4.11.3.1 Requirem

9、ent (no action) 7 Bibliography 8 PD CEN/TR 16042:2010 CEN/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 docu

10、ment may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. PD CEN/TR 16042:2010 CEN/TR 16042:2010 (E) 4 Introduction This Technical Report contains replies to requests for interpretations with regard to the understanding

11、of clauses in EN 14765:2005+A1:2008. 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

12、of the standard. However, following 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

13、 submitted by a CEN member body through 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 33

14、3 working party which will deal with 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 standar

15、d; 3) the history of the standard. 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 i

16、n some way. NOTE The interpretations 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 f

17、or interpretations are submitted through 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 th

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

19、 in the Official Journal of the European Union. PD CEN/TR 16042:2010 CEN/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 interpr

20、etations and no action decisions 2.1 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-pill

21、ar (except in EN 14765). The requirement 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

22、an exhaustive list. Also other means 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 corr

23、esponding clauses in the Technical Reports 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 wil

24、l not fulfil the ordinary brake-performance test. PD CEN/TR 16042:2010 CEN/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 revise

25、d? Reply The test mainly aims at checking 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 Technic

26、al Reports related to EN 14764, EN 14766 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 (

27、France) 2.4 Clause 4.11.3.1 Requirement (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 typ

28、es of bicycles. Reply Standard is clear: 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 E

29、N 14764, EN 14766 and EN 14781. REQ 051-10-2007 (France) PD CEN/TR 16042:2010 CEN/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, Mountai

30、n-bicycles Safety requirements and test methods 4 EN 14781, Racing bicycles Safety requirements and test methods This page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It pr

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