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1、BRITISH STANDARD BS 5891:1980 Specification for Ring-type hitches on agricultural trailers and towed implements UDC 631.373:629.114.3.013.5:621.825 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 This British Standard, having be
2、en prepared under the direction of the Agricultural Machinery and Implements Standards Committee, was published under the authority of the Executive Board and comes into effect on 30 June 1980 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference AGE/6 Dra
3、ft for comment 77/72677 DC ISBN 0 580 11414 7 Cooperating organizations The Agricultural Machinery and Implements Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organiz
4、ations: Agricultural Engineers Association* Agricultural Machine Parts Export Association British Agricultural and Garden Machinery Association Limited* British Lawn Mower Manufacturers Federation Department of Industry (Mechanical Engineering)* Health and Safety Executive* Institution of Agricultur
5、al Engineers Incorporated Ministry of Agriculture, Fisheries and Food* National Farmers Union* National Institute of Agricultural Engineering* Royal Welsh Agricultural Society The organizations marked with an asterisk in the above list, together with the following, were directly represented on the c
6、ommittee entrusted with the preparation of this British Standard: Forestry Commission Society of Motor Manufacturers and Traders Limited Individual experts Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006
7、, Uncontrolled Copy, (c) BSI BS 5891:1980 BSI 10-1999i Contents Page Cooperating organizationsInside front cover Forewordii 1Scope1 2References1 3Manufacture1 4Dimensions1 Figure 1 Dimensions of ring1 Figure 2 Minimum angles of articulation of towbar2 Publications referred toInside back cover Licens
8、ed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 ii BSI 10-1999 Foreword This British Standard has been prepared, under the direction of the Agricultural Machinery and Implements Standards Committee, to implement ISO 5692-1979 “Agricul
9、tural vehicles Mechanical connections on towed vehicles Hitch-rings Specifications” prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, of the International Organization for Standardization (ISO). The purpose of this standard is to ensure the interchangeab
10、ility of the mechanical connections on agricultural towed vehicles. The technical content of this British Standard is identical with that of ISO 5692 except that reference to operating conditions has been omitted, as they are considered to be irrelevant, and the minimum angles of articulation are gi
11、ven for information only, as it is considered inappropriate to specify requirements for them in this standard. The hitches specified in this British Standard may be employed on all balanced and non-balanced trailers used in agricultural work, provided that they are made of appropriate material and h
12、ave adequate strength and wear resistance for the type, size and load characteristics of the vehicles to which they are fitted. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Complia
13、nce with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have
14、 had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 BSI 10-19991 1 Scope This British Standard specifies the method of manufactur
15、e and dimensions for ring-type hitches on agricultural trailers and on agricultural implements attached to the rear of towing vehicles. 2 References The titles of the publications referred to in this standard are given on the inside back cover. 3 Manufacture The ring, which shall be substantially to
16、roidal, shall be forged and the shank shall be forged and/or machined. 4 Dimensions The dimensions of the ring shall be as shown in Figure 1. NOTEProvided that the attachment on the towing vehicle complies with ISO 6489-I or ISO 6489-II, the minimum angles of articulation that will be obtained with
17、a towbar fitted with this ring-type hitch are as shown in Figure 2. Figure 1 Dimensions of ring Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 2 BSI 10-1999 Figure 2 Minimum angles of articulation of towbar (see note to clause
18、4) Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 BSI 10-1999 Publications referred to ISO 6489-I, Agricultural vehicles Mechanical connections on towing vehicles Dimensions Part I: Hook type1). ISO 6489-II, Agricultural vehicl
19、es Mechanical connections on towing vehicles Dimensions Part II: Clevis type1). 1) In course of preparation. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5891:1980 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institut
20、ion BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards shoul
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27、oduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size,
28、 type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:23:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI