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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 220:1988 ISO 1102:1986 Specification for Dimensions of 50 mm drawbar couplings between commercial road vehicles and trailers ISO title: Commercial road vehicles Mechanical connections between towing vehicles and trailers 50 mm drawbar coupling UDC 629.11:629.
2、1.013.1/.6 + 629.1 43 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 This British Standard, having been prepared under the direction of the Automobile Standards Committee, was published under th
3、e authority of the Board of BSI and comes into effect on 29 January 1988 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference AUE/13 Draft for comment 85/79184 DC ISBN 0 580 16356 3 Committees responsible for this British Standard The preparation of this
4、British Standard was entrusted by the Automobile Standards Committee (AUE/-) to Technical Committee AUE/13, upon which the following bodies were represented: Department of Transport (Highways) Freight Transport Association Institute of Road Transport Engineers (Incorporated) London Regional Transpor
5、t Ministry of Defence National Bus Company Road Haulage Association Ltd. Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Un
6、controlled Copy, (c) BSI BS AU 220:1988 BSI 02-2000i Contents Page Committees responsibleInside front cover National forewordii 1Scope and field of application1 2Reference1 3Interchangeability dimensions1 Annex Drawbar coupling terminology4 Figure 1 50 mm drawbar eye1 Figure 2 Sleeve2 Figure 3 Horiz
7、ontal angle2 Figure 4 Vertical angle3 Figure 5 Rotation angle3 Figure 6 Drawbar coupling4 Figure 7 Drawbar4 Figure 8 Drawbar eye5 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy
8、, (c) BSI BS AU 220:1988 ii BSI 02-2000 National foreword This British Standard has been prepared under the direction of the Automobile Standards Committee. It is identical with ISO 1102:1986 “Commercial road vehicles Mechanical connections between towing vehicles and trailers 50 mm drawbar coupling
9、”, published by the International Organization for Standardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those u
10、sed in British Standards; attention is drawn especially to the following. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear referring to this standard,
11、 they should be read as “British Standard”. 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. Compliance with a British Standard does not of itself confer immunity from legal obligation
12、s. Cross-references International StandardCorresponding British Standard ISO 3584:1975BS AU 166:1977 Specification for road vehicles Mounting of mechanical coupling devices on rear cross members of trucks (Identical) ISO 8755:1986BS AU 219:1988 Specification for dimensions of 40 mm drawbar couplings
13、 between commercial road vehicles and trailers (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated.
14、 This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 BSI 02-20001 1 Scope and field of application This International Standard
15、 specifies the essential dimensions of a 50 mm drawbar coupling and a 50 mm drawbar eye to permit interchangeability between towing vehicles and trailers equipped with these connections. These mechanical connections are not interchangeable with the 40 mm couplings specified in ISO 8755. This Interna
16、tional Standard applies to mechanical connections designed for commercial vehicles and trailers, the maximum total mass of which is above 3,5 t. NOTETerms relating to drawbar couplings are illustrated in the Annex (Figure 6, Figure 7 and Figure 8) in order to avoid misunderstandings. 2 Reference ISO
17、 3584, Road vehicles Mounting of mechanical coupling devices on rear cross members of trucks. 3 Interchangeability dimensions The following specifications are set to ensure interchangeability: drawbar eye (see 3.1); travel angles of the drawbar coupling (see 3.2). NOTE 1Dimensions for mounting of dr
18、awbar couplings on the rear cross members of towing vehicles are given in ISO 3584. NOTE 2Dimensions to ensure operating clearance between towing vehicles and trailers will form the subject of a future International Standard. 3.1 Drawbar eye The dimensional data of the drawbar eye ensuring interchan
19、geability are given in Figure 1. (Details not specified are left to the manufacturers choice.) The use of a sleeve is recommended to minimize damage to the inside of the eye, the sleeve being easily replaced when worn out. Dimensions of the fitted sleeve are specified in Figure 2. Installation of a
20、non-slotted sleeve shall be such that it does not work loose during service. 3.2 Travel angles of the drawbar coupling The drawbar coupling tested separately, i.e. not mounted on the towing vehicle, shall be designed so that it allows for the travel angles specified in Figure 3, Figure 4 and Figure
21、5, when the drawbar is fixed to the drawbar coupling. Figure 1 50 mm drawbar eye Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 2 BSI 02-2000 NOTESlotted sleeves should be inserted such that the
22、 slot is to the rear, at 45 to the drawbar longitudinal axis. Figure 2 Sleeve Figure 3 Horizontal angle Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 BSI 02-20003 Figure 4 Vertical angle Figure
23、 5 Rotation angle Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 4 BSI 02-2000 Annex Drawbar coupling terminology (This Annex forms an integral part of the Standard.) Figure 6 Drawbar coupling F
24、igure 7 Drawbar Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 BSI 02-20005 Figure 8 Drawbar eye Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GM
25、T+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 BSI 02-2000 Publications referred to See national foreword. Licensed Copy: London South Bank Unive
26、rsity, London South Bank University, Sat Dec 09 02:05:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 220:1988 ISO 1102:1986 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents th
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