ISO INTERNATIONAL STANDARD 12357-2 First edition 2007-04-15 Commercial road vehicles Drawbar couplings and eyes for rigid drawbars Part 2: Strength tests for special applications Vehicules routiers commerciaux - Pivot et anneaux pour barres d'attelage rigides - Partie 2: Essais de résistance pour applications spéciales Reference number ISO 12357-2:2007(E) @ ISO 2007 ISO 12357-2:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation COPYRIGHTPROTECTED DOCUMENT ?ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO 2007-All rights reserved ISO 12357-2:2007(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work 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 non-governmental, 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. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 12357-2 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 15. Interchangeability of components of commercial vehicles and buses. couplings and eyes for rigid drawbars: Part 1: Strength tests for general cargo centre-axle trailers Part 2: Strength tests for special applications alion'ghtsreserved ili Copvriaht International Oraanization for Standardizatior INTERNATIONAL STANDARD ISO12357-2:2007(E) Commercial road vehicles Drawbar couplings and eyes for rigid drawbars - Part 2: Strength tests for special applications Scope This International Standard lays down test conditions and strength requirements to be met by: are provided for use on rigid drawbar trailers (see 3.2) with a maximum design total mass, C+S, exceeding 3,5 tonnes and: a vertical static load S (see 3.1) exceeding 10 % of their design total mass, and/or a vertical static load S greater than 1 000 kg and up to 2 000 kg. EXAMPLE Examples of couplings and corresponding drawbar eyes include drawbar couplings according to ISO 3584 combined with drawbar eyes according to IsO 1102. NOTE This International Standard does not apply if both values, 10 % and 1 000 kg, are not exceeded. Such towed vehicles are defined as centre-axletrailersandaresubject to ISO12357-1. b） Case B (see Figure 1 b): Drawbar couplings and corresponding drawbar eyes