1、BS ISO 22882:2016Castors and wheels Requirements for castors forhospital bedsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 22882:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 22882:2016.The UK participation in it
2、s preparation was entrusted to Technical Committee MHE/7/-/1, Castors and wheels.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 co
3、rrect application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92966 3 ICS 11.140 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Stra
4、tegy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 22882:2016 ISO 2016Castors and wheels Requirements for castors for hospital bedsRoues et roulettes Exigences pour roulettes pour lits dhpitauxINTERNATIONAL STANDARDISO22882Second editi
5、on2016-12-01Reference numberISO 22882:2016(E)BS ISO 22882:2016ISO 22882:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any for
6、m or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet
7、 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 22882:2016ISO 22882:2016(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Dimensions and classification 14.1 Characteristics . 14.2 Dimens
8、ions . 14.3 Fixing system 24.4 Load capacity 35 Requirements for testing . 35.1 General . 35.2 Standard conditions . 35.2.1 Environmental conditions . 35.2.2 Test sequence 35.3 Initial wheel play . 45.3.1 Test objectives, apparatus and procedures . 45.3.2 Acceptance criteria 45.4 Initial swivel play
9、 45.4.1 Test objectives, apparatus and procedures . 45.4.2 Acceptance criteria 45.5 Electrical resistance test . 45.5.1 Test objectives, apparatus and procedures . 45.5.2 Test values . 45.5.3 Tolerances 55.5.4 Acceptance criteria 55.6 Fatigue test for locking/braking device . 55.6.1 Test objectives,
10、 apparatus and procedures . 55.6.2 Test values . 55.6.3 Tolerances 55.6.4 Acceptance criteria 65.7 Efficiency check of wheel braking and/or locking device . 65.7.1 Test objectives, apparatus and procedures . 65.7.2 Test values . 65.7.3 Tolerances 65.7.4 Acceptance criteria 65.8 Efficiency check of s
11、wivel braking and/or locking device. 65.8.1 Test objectives, apparatus and procedures . 65.8.2 Test values . 65.8.3 Tolerances 75.8.4 Acceptance criteria 75.9 Static test 75.9.1 Test objectives, apparatus and procedures . 75.9.2 Test values . 75.9.3 Tolerances 75.9.4 Acceptance criteria 85.10 Dynami
12、c test 85.10.1 Test objectives, apparatus and procedures . 85.10.2 Test values . 85.10.3 Tolerances 85.10.4 Acceptance criteria 95.11 Efficiency check of wheel braking and/or locking device . 9 ISO 2016 All rights reserved iiiContents PageBS ISO 22882:2016ISO 22882:2016(E)5.12 Efficiency check of sw
13、ivel braking and/or locking device. 95.13 Final wheel play . 95.13.1 Test objectives, apparatus and procedures . 95.13.2 Acceptance criteria 95.14 Final swivel play 105.14.1 Test objectives, apparatus and procedures 105.14.2 Acceptance criteria .106 Conformity .107 Marking .107.1 Product marking . 1
14、07.2 Marking of electrically conductive or antistatic castors/wheels 10Bibliography .11iv ISO 2016 All rights reservedBS ISO 22882:2016ISO 22882:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wor
15、k of preparing 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-governme
16、ntal, in liaison 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
17、 ISO/IEC Directives, 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 possib
18、ility that some 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
19、patent declarations 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 in
20、formation about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 110, Industrial trucks.This second edition results from the reinstatemen
21、t of ISO 22882:2004, which was withdrawn in 2014 and with which it is technically identical. ISO 2016 All rights reserved vBS ISO 22882:2016ISO 22882:2016(E)IntroductionThe industry stakeholders have expressed the need for this important International Standard. Therefore, the interested parties agre
22、ed to republish the withdrawn International Standard as a new edition.In order to ensure that the International Standard will be actively used in the ISO member countries worldwide, procedures may be necessary to replace the existing national standards and technical regulations by the International
23、Standard.Only by these actions will there be a guarantee that products in accordance with International Standards can be shipped worldwide freely without any technical barriers.vi ISO 2016 All rights reservedBS ISO 22882:2016Castors and wheels Requirements for castors for hospital beds1 ScopeThis do
24、cument specifies the technical requirements, the appropriate dimensions and the requirements for the testing of swivel castors for hospital beds with a wheel diameter of 100 mm or more and which have a central locking device. Swivel castors may be used with the main principal dimensions.2 Normative
25、referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendmen
26、ts) applies.ISO 22878:2004, Castors and wheels Test methods and apparatus3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 22877 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia:
27、 available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obpNOTE Symbols are given in ISO 22878:2004, Annex A.4 Dimensions and classification4.1 CharacteristicsThe characteristics of a castor are as follows: wheel diameter; overall height; offset; fixing
28、 system; load capacity.4.2 DimensionsThe dimensions listed in Table 1 and shown in Figure 1 shall be used.For dimensions of non-central locking castors used in hospital beds, refer to the relevant tables in ISO 22881.INTERNATIONAL STANDARD ISO 22882:2016(E) ISO 2016 All rights reserved 1BS ISO 22882
29、:2016ISO 22882:2016(E)Dimensions in millimetresKey1 working angle2 unlocked positionFigure 1 Principal dimensions of the central locking fixing systemTable 1Wheel diameteraOverall heightbOffsetbD h dF100 150 46125 175 56150 200 65200 250 70250 300 80aTolerance 1 %.bMaximum.4.3 Fixing systemThe princ
30、ipal dimensions of the fixing system with the central locking are as follows: stem length; stem diameter; distance of the threaded hole centre from the stem collar; thread size;2 ISO 2016 All rights reservedBS ISO 22882:2016ISO 22882:2016(E) distance of the hexagon hole centre from the stem collar;
31、dimension of the hexagon hole; working angle of the hexagon hole.4.4 Load capacityThis is the maximum load, in newtons, which can be carried by a wheel or a castor so as to fully comply with the required acceptance criteria.5 Requirements for testing5.1 GeneralTest methods and apparatus shall be as
32、specified in ISO 22878.5.2 Standard conditions5.2.1 Environmental conditionsTests shall be carried out at a temperature between 15 C and 28 C. During the 24 h prior to the test, the samples shall remain at the specified temperature, in an environment with a relative humidity between 40 % and 70 %.Sa
33、mples shall not be artificially cooled during testing.5.2.2 Test sequenceTests, where relevant, shall be carried out in the sequence shown in Table 2.Table 2Reference in this documentTest sequence Castor typesTest procedure given in ISO 22878:20045.3 Initial wheel play All 4.25.4 Initial swivel play
34、Swivel castors with or without accessories4.35.5 Electrical resistanceCastors antistatic or electrically conductive4.45.6Fatigue test for locking/brak-ing deviceCastors with a central locking/braking device4.55.7Efficiency check of wheel braking and/or locking deviceCastors with a central locking/br
35、aking device4.65.8Efficiency check of swivel braking and/or locking deviceCastors with a central locking/braking device4.75.9 Static test All 4.95.10 Dynamic test All 4.85.11Efficiency check of wheel braking and/or locking deviceCastors with a central locking/braking device4.65.12Efficiency check of
36、 swivel braking and/or locking deviceCastors with a central locking/braking device4.75.13 Final wheel play All 4.25.14 Final wheel playSwivel castors with or without accessories4.3 ISO 2016 All rights reserved 3BS ISO 22882:2016ISO 22882:2016(E)5.3 Initial wheel play5.3.1 Test objectives, apparatus
37、and proceduresThese shall be as specified in ISO 22878:2004, 4.2.5.3.2 Acceptance criteriaThe measured initial wheel play shall not exceed the value (dW1) given in Table 3.Table 3Dimensions in millimetresWheel diameter Maximum initial wheel playD dW1100 0,50125 0,62150 0,75200 1,00250 1,255.4 Initia
38、l swivel play5.4.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.3.5.4.2 Acceptance criteriaThe measured initial swivel play shall not exceed the value (dS1) given in Table 4.Table 4Symbol Value DescriptiondS14 mm Maximum initial swivel play5.5 Electrical
39、resistance test5.5.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.4.5.5.2 Test valuesThe test values shall be as listed in Table 5.Table 5Symbol Value DescriptionFmaxVariable Load capacityF1710 % of FmaxTest loadR Variable Electrical resistance4 ISO 2016
40、All rights reservedBS ISO 22882:2016ISO 22882:2016(E)5.5.3 TolerancesThe tolerances shall be as shown in Table 6.Table 6Symbol UnitToleranceAcceptable UnitF17N02+ %N5.5.4 Acceptance criteriaThe resistance R of the sample tested shall be as follows: R 105 for conductive castors or wheels; 105 R 107 f
41、or antistatic castors or wheels.5.6 Fatigue test for locking/braking device5.6.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.5.5.6.2 Test valuesThe test values shall be as listed in Table 7.Table 7Symbol Value DescriptionnE10 000 Number of locking action
42、sfE10 cycles/min Frequency of locking actionsF3800 N Test load5.6.3 TolerancesThe tolerances shall be as shown in Table 8.Table 8Symbol UnitToleranceAcceptable UnitnE01+ %fEcycles/min20cycles/minF3N02+ %N ISO 2016 All rights reserved 5BS ISO 22882:2016ISO 22882:2016(E)5.6.4 Acceptance criteriaThere
43、shall be no wear and/or permanent deformation that adversely affect the performance of the sample.5.7 Efficiency check of wheel braking and/or locking device5.7.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.6.5.7.2 Test valuesThe test values shall be as
44、listed in Table 9.Table 9Symbol Value DescriptionFmaxVariable Load capacityF11Equal to FmaxTest loadFK140 % of FmaxHorizontal tractive force5.7.3 TolerancesThe tolerances shall be as shown in Table 10.Table 10Symbol UnitToleranceAcceptable UnitF11N02+ %NFK1N04+ %N5.7.4 Acceptance criteriaThe wheel s
45、hall have no revolving movement around its axis during the second application of the force FK1.5.8 Efficiency check of swivel braking and/or locking device5.8.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.7.5.8.2 Test valuesThe test values shall be as li
46、sted in Table 11.6 ISO 2016 All rights reservedBS ISO 22882:2016ISO 22882:2016(E)Table 11Symbol Value DescriptionFmaxVariable Load capacityF11Equal to FmaxTest loadFK240 % of FmaxHorizontal tractive force5.8.3 TolerancesThe tolerances shall be as shown in Table 12.Table 12Symbol UnitToleranceAccepta
47、ble UnitF11N02+ %NFK2N04+ %N5.8.4 Acceptance criteriaNo swivelling movement shall be detected during the second application of the force FK2.5.9 Static test5.9.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.9.5.9.2 Test valuesThe test values shall be as l
48、isted in Table 13.Table 13Symbol Value DescriptionFmaxVariable Load capacityy13 Load factorF6Fmax y1Test loadty11 h Time of application of the loadty224 h Time elapsed prior to inspection5.9.3 TolerancesThe tolerances shall be as shown in Table 14. ISO 2016 All rights reserved 7BS ISO 22882:2016ISO
49、22882:2016(E)Table 14Symbol UnitToleranceAcceptable UnitF6N02+ %Nty1h015+minty2h 1 h5.9.4 Acceptance criteriaThere shall be no permanent deformation of the sample that adversely affects its performance.5.10 Dynamic test5.10.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.8.5.10.2 Test valuesThe test values shall be as listed in Table 15.Table 15Symbol Value DescriptionFmaxVariable Load capacityv11,1 m/s (4 km/h) Average speed of running periodv21,1 m/s (
