1、BRITISH STANDARD BS ISO 5692-1:2004 Agricultural vehicles Mechanical connections on towed vehicles Part 1: Dimensions for hitch rings ICS 65.060.10 BS ISO 5692-1:2004 This British Standard was published under the authority of the Standards Policy and S t r a t e g y C o m m i t t e e o n 10 May 2004
2、 BSI 10 May 2004 ISBN 0 580 43756 6 National foreword This British Standard reproduces verbatim ISO 5692-1:2004 and implements it as the UK national standard. It supersedes BS 5891:1980 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee AGE/6, Agricultur
3、al tractors and forestry machinery, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the B
4、SI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for
5、 its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK inte
6、rests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice displayed
7、in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsINTERNATIONAL STANDARD ISO 5692-1 First edition 2004-04-01 Reference number ISO 5692-1:2004(E) Agricultural vehicles Mechanical connections on towed vehicles Part 1: Dimensions for
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13、i dehsil Stiwrezldna BSISO56921:2004 iii 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 b
14、ody 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-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electro
15、technical Commission (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
16、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 r
17、ights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 5692-1 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 4, Tr a c t o r s. This first edition of ISO 5692-1, together with ISO 5692-2:2002, c
18、ancels and replaces ISO 5692:1979 which has been technically revised. ISO 5692 consists of the following parts, under the general title Agricultural vehicles Mechanical connections on towed vehicles: Part 1: Dimensions for hitch rings Part 2: Coupling ring 40 with socket BSISO56921:2004. vi ANRETNII
19、TOTS LANDNADRA OSI -29654002:1)E(1 Agricultural vehicles Mechanical connections on towed vehicles Part 1: Dimensions for hitch rings 1S c o p e This part of ISO 5692 specifies the requirements for the attachment of agricultural non-balanced trailers and implements by means of hitch rings to the rear
20、 of the towing vehicle equipped with either a hook as specified in ISO 6489-1, or a piton-type coupling as specified in ISO 6489-4. Its purpose is to ensure the interchangeability of mechanical connections on agricultural towed vehicles. This part of ISO 5692 is applicable to rings whose coupling po
21、int is below the centre-line of the rear axle and below the power take-off (PTO) of the tractor. NOTE Other International Standards are under development for rings coupled above the PTO. 2 Normative references The following referenced documents are indispensable for the application of this document.
22、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6489-1, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 1: Dimensions of hitch-hooks ISO 6489-4, Ag
23、ricultural vehicles Mechanical connections between towed and towing vehicles Part 4: Dimensions of piton-type coupling 3 Interchangeability dimensions 3.1 General The hitch ring and the shank shall have the dimensions shown in Figures 1 and 2. Interchangeability is ensured provided that the attachme
24、nt on the towing vehicle is in accordance with ISO 6489-1 or ISO 6489-4. BSISO56921:20042 3.2 Trailer shank travel angles When the trailer shank fitted with the specified hitch ring is fixed to the tractor attachment, the shank shall be free to turn so that the angles formed with the horizontal situ
25、ated in the tractors plane of symmetry and passing through the coupling point have the following minimum values. a) Angle of yaw: rotation around a vertical axis passing through the coupling point, minimum value of on both sides. b) Angle of pitch: rotation around a horizontal axis passing through t
26、he coupling point and perpendicular to the vehicles longitudinal plane of symmetry, minimum value top and bottom. Allowance should be made for the towing vehicle being up to from horizontal, due to front/rear tyre sizes. c) Angle of roll: rotation around a horizontal axis passing through the couplin
27、g point and located in the vehicles plane of symmetry, minimum value top and bottom. 4 Constructional requirements Hitch rings in accordance with this part of ISO 5692 shall be substantially toroidal and shall be manufactured by forging. Shanks shall be forged or machined or both. The hitch ring sha
28、ll be fixed on the shank. The hitch hook or piton-type coupling on the tractor shall be designed to allow the travel angles specified in 3.2. In addition to these requirements relating to fixed hitch rings for towed vehicles, only the towed member (i.e. hitch ring and shank) shall have the option of
29、 providing rotational freedom of up to around the shanks horizontal longitudinal axis (roll). Limitation of rotation away from the horizontal, or bias towards the hitch ring remaining horizontal, is optional. Dimensions in millimetres Figure 1 Hitch ring dimensions 60 20 3 20 360 BSISO56921:2004 ISO
30、 4002 r llAithgs reservde 3 Dimensions in millimetres Figure 2 Hitch shank dimensions BSISO56921:20044 Annex A (informative) Permissible mechanical connection combinations between towed and towing vehicles Towing vehicle Towed vehicle ISO 6489-1:1991 hook type ISO 5692:1979/ISO 5692-1:2004 hitch rin
31、g ( hole centre,ring diameter) ISO 6489-1:2001 hook type a ISO 5692:1979/ISO 5692-1:2004 hitch ring ( hole centre,ring diameter) ISO 20019:2001 hitch ring ( hole centre, to ring diameter) ISO 6489-2:2002 bolt type ISO 5692-2:2002 coupling ring ( socket) ISO 8755:1986 drawbar coupling b ISO 1102:1986
32、 drawbar coupling b ISO 6489-3: ddrawbar (Cat 2) ISO 5692:1979/ISO 5692-1:2004 hitch ring ( hole centre,ring diameter) c ISO 5692-2:2002 coupling ring ( socket) ISO 8755:1986 drawbar coupling ISO 1102:1986 drawbar coupling c ISO 6489-4:2004 piton type ISO 5692:1979/ISO 5692-1:2004 hitch ring ( hole
33、centre,ring diameter) ISO 24347 eball type ISO 24347 e( ball diameter) Only the combinations given above are recommended. a Connecting an ISO 6489-1:2001 hook, manufactured in accordance with the maximum sizes permitted, to hitch rings in accordance with ISO 5692-1 and of minimum dimensions ( ring d
34、iameter) according to ISO 20019 could result in a “jerky” connection between the tractor and the trailer and result in less driving comfort. b Primarily used on trailers towed behind trucks (on-road). c Could result in a “jerky” connection between the tractor and the trailer and result in less drivi
35、ng comfort. d To be published. (Revision of ISO 6489-3:1992) e Under preparation. 50 mm 30 mm 50 mm 30 mm 50 mm 30 mm 41 mm 40 mm 40 mm 50 mm 50 mm 30 mm 40 mm 40 mm 50 mm 50 mm 30 mm 80 mm 30 mm BSISO56921:2004 5 Bibliography 1 ISO 1102:1986, Commercial road vehicles Mechanical connections between
36、towing vehicles and trailers 50 mm drawbar couplings 2 ISO 5692:1979, Agricultural vehicles Mechanical connections on towed vehicles Hitch-rings Specifications 3 ISO 5692-2:2002, Agricultural vehicles Mechanical connections on towed vehicles Part 2: Coupling ring 40 with socket 4 ISO 6489-1:1991, Ag
37、ricultural vehicles Mechanical connections on towing vehicles Part 1: Hook type 5 ISO 6489-1:2001, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 1: Dimensions of hitch-hooks 6 ISO 6489-2:2002, Agricultural vehicles Mechanical connections between towed and towing
38、 vehicles Part 2: Specifications for clevis coupling 40 7 ISO 6489-3: 1) , Agricultural vehicles Mechanical connections between towed and towing vehicles Part 3: Tractor drawbar 8 ISO 6489-4:2004, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 4: Dimensions of pi
39、ton-type coupling 9 ISO 8755:1986, Commercial road vehicles Mechanical connections between towing vehicles and trailers 40 mm drawbar coupling 10 ISO 20019:2001, Agricultural vehicles Mechanical connections on towed vehicles Dimensions for hitch rings 11 ISO 24347, Agricultural vehicles Mechanical c
40、onnections between towed and towing vehicles Dimensions of ball-type coupling device (80 mm) 2) 1) To be published. (Revision of ISO 6489-3:1992) 2) Under preparation. BSISO56921:2004BS ISO 5692-1:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent
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