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1、a Date: 1 March 2007 Origin: International Latest date for receipt of comments: 30 June 2007 Project no.: 2007/00526 Responsible committee: AGE/6 Agricultural tractors and forestry machinery Interested committees: Title: Draft BS ISO 26402 Agricultural vehicles Steering systems for agricultural trai
2、lers Interface for articulated steering device of unbalanced trailers Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede NONE . If you are aware of a current national standard which may be affected, please no
3、tify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 June 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. N
4、o acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing pur
5、poses. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also availabl
6、e from BSI Customer Services. British Standards on CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations represented on the committees referenced above may be obtained from the res
7、ponsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: Responsible Committee Secretary: Mrs G Hagger (B
8、SI) E-mail: Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 6.1 DPC: 07/30163161 DC Licensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontro
9、lled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are invited and will assist in the preparation of the consequent standard. Comments submitted will be reviewed by the relevant BSI committ
10、ee before sending the consensus UK vote and comments to the international secretariat, which will then decide appropriate action on the draft and the comments received. If no comments are received to the contrary, then the UK will approve this draft. If the international standard is approved, it is
11、possible the text will be published as an identical British Standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropri
12、ate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Versi
13、on 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submi
14、tting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at:http:/www.bsi- Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph
15、/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no co
16、nnection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Lic
17、ensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISH
18、ED AS SUCH. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
19、 DRAFT INTERNATIONAL STANDARD ISO/DIS 26402 International Organization for Standardization, 2007 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ISO/TC 23/SC 4 Voting begins on: 2007-02-27 Secretariat: DIN Voting terminates on: 2007-07-27 Agricultural vehi
20、cles Steering systems for agricultural trailers Interface for articulated steering device of unbalanced trailers Vhicules agricoles Systmes de direction pour remorques agricoles Interface pour dispositif de direction articul pour remorques non quilibres ICS 65.060.10 In accordance with the provision
21、s of Council Resolution 15/1993 this document is circulated in the English language only. Conformment aux dispositions de la Rsolution du Conseil 15/1993, ce document est distribu en version anglaise seulement. To expedite distribution, this document is circulated as received from the committee secr
22、etariat. ISO Central Secretariat work of editing and text composition will be undertaken at publication stage. Pour acclrer la distribution, le prsent document est distribu tel quil est parvenu du secrtariat du comit. Le travail de rdaction et de composition de texte sera effectu au Secrtariat centr
23、al de lISO au stade de publication. Licensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 26402 ii ISO 2007 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with
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26、care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Copyright notice This ISO document is a Draft International Standard and is copyright-
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28、mission being secured. Requests for permission to reproduce should be addressed to either ISO at the address below or ISOs 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 copyrightiso.org Web www.
29、iso.org Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. Licensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 26402 ISO 2006 All rights reserved iii Cont
30、ents Page Foreword iv 1 Scope1 2 Normative references1 3 Terms and definitions.1 4 General requirements .2 5 Clearance zones2 DRAFT 2007 Licensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 26402 iv ISO 2006
31、 All rights reserved 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
32、subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
33、 (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical com
34、mittees 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 rights. ISO shall not
35、 be held responsible for identifying any or all such patent rights. ISO 26402 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors. DRAFT 2007 Licensed Copy: London South Bank University, London South Bank University, Sat Mar
36、 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI DRAFT INTERNATIONAL STANDARD ISO/DIS 26402 ISO 2006 All rights reserved 1 Agricultural vehicles Steering systems for agricultural trailers Interface for articulated steering device of semi- mounted trailers 1 Scope This International Standard s
37、pecifies dimensions and clearance zones at the interface between tractor and trailer for articulated steering devices of unbalanced trailers. This International Standard applies exclusively in connection with ISO 24347:2005 Agricultural vehicles mechanical connections between towed and towing vehicl
38、es Dimensions of ball-type coupling device (80 mm). The maximum permissible forces at the connection of the articulated steering device are specified by this International Standard. Requirements and test methods for verifying the mechanical strength of the interface of the articulated steering devic
39、e, the mechanical coupling device as well as technical requirements for the articulated steering device are not covered by this International Standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edi
40、tion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 730-1:1994, Agricultural wheeled tractors Rear-mounted three-point linkage Part 1: Categories 1, 2, 3 and 4 ISO 1103:1996, Road vehicles Coupling balls for caravans and l
41、ight trailers Dimensions ISO 17900:2002, Agricultural trailers Balanced and semi-mounted trailers Determination of payload, vertical static load and axle load ISO 24347:2005, Agricultural vehicles Mechanical connections between towed and towing vehicles Dimensions of ball-type coupling device (80 mm
42、) 3 Terms and definitions For the purpose of this document, the terms and definitions of ISO 17900:2002 and the following apply. 3.1 articulated steering equipment in which the steering forces are produced by a change in direction of the towing vehicle and in which the movement of the steered traile
43、r wheels is firmly linked to the relative angle between the longitudinal axis of the towing vehicle and that of the trailer. DRAFT 2007 Licensed Copy: London South Bank University, London South Bank University, Sat Mar 17 04:03:25 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 26402 2 ISO 2006 A
44、ll rights reserved 4 General requirements 4.1 The interface of the articulated steering device may consist of one or two connecting points. If only one connecting point is provided, this one shall be located left side in the direction of travel. Figure 1 shows the version consisting of one connectin
45、g point as an example. 4.2 The dimensions of the connecting point(s) of the tractor (50 mm ball) shall conform to ISO 1103:1996, those of the connecting point(s) of the trailer shall conform to Figure 2. An unintentional disconnection of the connecting point(s) of the tractor (50 mm ball) and the tr
46、ailer shall be prevented by mechanical means at the connecting point(s) of the tractor (50 mm ball). 4.3 The maximum force in the direction of the steering rod according to Figure 1 shall not exceed 20 kN; it has to be limited to the stated value by appropriate means if need be. NOTE A hydraulic pow
47、er supply is one example for an appropriate means for the limitation of the maximum force. 4.4 The centre line through the ball-type coupling device 80 according to ISO 24347:2005 and the connecting point(s) of the tractor (50 mm ball) shall be parallel to the rear axle of the tractor. A tolerance o
48、f 5 mm both horizontally and vertically is permitted. The location in relation to the ball-type coupling device 80 mm according to ISO 24347:2005 shall conform to Figure 3. NOTE The geometry of the connecting point(s) of the tractor (50 mm ball) conforms to ISO 1103:1996. 4.5 Both, the mechanical co
49、upling device 80 and the connecting point(s) (50 mm ball) shall meet the requirements for angles of pitch, yaw and roll according to 3.1.4 of ISO 24347:2005. If the angle of yaw of 60 prescribed for mechanical coupling devices cannot be obtained by the connecting point(s) (50 mm ball) without contact of tractor and drawbar parts, the max