1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58motor vehicles and towed vehicles Interchangeability ICS 43.040.40Road vehicles Pneumatic braking c
2、onnections between BRITISH STANDARDBS ISO 1728:2006BS ISO 1728:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2006ISBN 0 580 49248 6Amendments issued since publicationAmd. No. Date Commentscontract. Users are respon
3、sible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 1728:2006.The UK participation in its preparation was entrusted to Technical Committee A
4、UE/11, Braking systems.A list of organizations represented on AUE/11 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 1728:2006(E)INTERNATIONAL STANDARD ISO1728Third edition2006-09-01Road vehicles Pneumatic
5、 braking connections between motor vehicles and towed vehicles Interchangeability Vhicules routiers Liaisons de freinage pneumatique entre automobiles et vhicules tracts Interchangeabilit BS ISO 1728:2006ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federatio
6、n 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 established has the right to be represented on that committee.
7、 International organizations, governmental and 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 wi
8、th 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 committees are circulated to the member bodies for voting. Publication as an International Standard requires appro
9、val 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 be held responsible for identifying any or all such patent rights. ISO 1728 was prepared by Technical Committe
10、e ISO/TC 22, Road vehicles, Subcommittee SC 2, Braking systems and equipment. This third edition cancels and replaces the second edition (ISO 1728:1980), which has been technically revised. BS ISO 1728:2006blank1Road vehicles Pneumatic braking connections between motor vehicles and towed vehicles In
11、terchangeability 1 Scope This International Standard specifies the requirements which ensure interchangeability of the pneumatic braking connections between motor vehicles and towed vehicles. It concerns vehicle combinations equipped with pneumatic braking systems with two lines: one control line an
12、d one supply line. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 400
13、9, Commercial vehicles Location of electrical and pneumatic connections between towing vehicles and trailers 3 Interchangeability requirements 3.1 Coupling head type The “Palm type” coupling head shall be used. It shall be fitted with an inhibiting device to prevent incorrect coupling (see Figures 1
14、 and 2). The towing vehicle shall be equipped with an automatic device ensuring, without manual operation, the continuity of the pipelines when they are coupled, and their closure on uncoupling. This device shall not affect the interchangeability. The coupling head shall make provision for any type
15、of valve to be fitted to the towing vehicle, provided that the valve can be opened by the standard coupling head on the towed vehicle and that the ability to be coupled with all coupling heads corresponding to this International Standard is not compromized. 3.2 Coupling head dimensions The dimension
16、s of the coupling heads shall be as given in Tables 1 and 2, and shown in Figures 1 and 2. This International Standard specifies only the dimensional details necessary for the coupling. All other dimensions not shown, as well as details of design, are left to the discretion of the manufacturer. 3.3
17、Location of coupling heads and flexible pipe connections The locations of both electrical and pneumatic connections between towing and towed vehicles are specified in ISO 4009. The location of coupling heads and flexible pipe connections on the towing and towed vehicles shall comply with ISO 4009. B
18、S ISO 1728:20062 3.4 Colour coding for connections For the supply line: RED. For the control line: YELLOW. The colour shall be related to the coupling head or to a clearly visible point close to the head, for example, pipes or an identification tag. 3.5 Orientation of coupling heads The coupling axi
19、s of the fixed coupling heads shall be horizontal. The vertical sealing face shall be located as follows, according to whether it concerns a road train or an articulated road train: truck: towards the right when the vehicle is viewed from the rear; semi-trailer: towards the left when the vehicle is
20、viewed from the rear. 3.6 Length of flexible pipe connections The length of the flexible pipe connections between towing and towed vehicles is specified in ISO 4009. The length of flexible pipe connections on the towing and towed vehicles shall comply with ISO 4009. Table 1 Dimensions for coupling h
21、ead for supply line Connection A amm B mm With resilient sealing ring (for heads “tractor” and “trailer”) 2,7 0,5 19 2 With mobile part providing for the opening of the automatic valve (see 3.1) 3,5 + 1 21 max. 11 min. aThe opening of the automatic device shall be assured even when two coupling head
22、s with the most adverse tolerances for pushing down the mobile part are connected together. It shall be possible to push down the sealing face until the dimension A is at zero. BS ISO 1728:20063Dimensions in millimetres Key 1 sealing face 3 inhibiting device 2 coupling axis 4 stop Figure 1 Coupling
23、head for supply line BS ISO 1728:20064 Dimensions in millimetres BS ISO 1728:20065Key 1 minimum free space for the crossing of inhibiting device of the other head 2 sealing face 3 coupling axis 4 inhibiting device 5 stop Figure 2 Coupling head for control line Table 2 Dimensions for coupling head fo
24、r control line Connection A amm B mm With resilient sealing ring (for heads “tractor” and “trailer”) 2,7 0,5 19 2 With mobile part providing for the opening of the automatic valve (see 3.1) 3,5 + 1 21 max. 11 min. aThe opening of the automatic device shall be assured even when two coupling heads wit
25、h the most adverse tolerances for pushing down the mobile part are connected together. It shall be possible to push down the sealing face until the dimension A is at zero. BS ISO 1728:20066 Bibliography 1 ISO 1726, Road vehicles Mechanical coupling between tractors and semi-trailers Interchangeabili
26、ty BS ISO 1728:2006blankBS ISO BSI389 Chiswick High RoadLondonW4 4AL1728:2006BSI British Standards InstitutionBSI 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 C
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