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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD AUTOMOBILE SERIES BS AU 1
2、59f : 1997 ICS 43.020; 83.160.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Specification for Repairs to tyres for motor vehicles used on the public highway Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:16 GMT+00:00 2006, Unco
3、ntrolled Copy, (c) BSI BS AU 159f : 1997 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 1997 BSI 1997 The following BSI references relate to the work on thi
4、s standard: Committee reference AUE/3 Draft for comment 96/711574 DC ISBN 0 580 28967 2 Amendments issued since publication Amd. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee AUE/3, Renovation of ty
5、res for motor vehicles, upon which the following bodies were represented: Association of County Councils Automobile Association British Rubber Manufacturers Association Ltd. Confederation of Passenger Transport Consumer Policy Committee of BSI Department of Transport National Tyre Distributors Assoc
6、iation Retread Manufacturers Association Road Haulage Association Ltd. Royal Automobile Club Society of Motor Manufacturers and Traders Ltd. Institute of Road Transport Engineers Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:16 GMT+00:00 2006, Uncontroll
7、ed Copy, (c) BSI BS AU 159f : 1997 BSI 1997i Contents Page Committees responsibleInside front cover Forewordii Specification Introduction1 1Scope1 2Normative references1 3Definitions1 4Tyre performance4 5Tyre inspection before and during repair4 6Repair and tyres suitable for repair4 7Tyre inspectio
8、n after repair4 8Marking5 9Repair materials6 10Sealants6 11Tubes and inflation valves6 Annexes Annex A (normative) Initial inspection9 Annex B (normative) Minor repairs to radial ply tyres for cars and commercial vehicles10 Annex C (normative) Limits on major repairs for radial car tyres11 Annex D (
9、normative) Limits on major repairs for radial ply tyres for commercial vehicles12 Annex E (normative) Minor repairs to diagonal (cross) ply tyres for cars and commercial vehicles14 Annex F (normative) Limits on major repairs for diagonal (cross) ply car tyres15 Annex G (normative) Limits on major re
10、pairs for diagonal (cross) ply tyres for commercial vehicles16 Annex H (normative) Limits on minor repairs for motorcycle and scooter tyres17 Annex J (normative) Tyre repair preparation and building18 Annex K (normative) Vulcanization18 Annex L (normative) Repairs to inner tubes and inflation valves
11、19 Annex M (informative) Calculated values of repairable area of tyres T based on nominal section width and percentage20 Tables 1Loadcapacity index (LI)3 2Speed symbols4 B.1Repairable area T in terms of percentage of nominal section width of tyre10 B.2Radial tyre injury limits: size of penetration d
12、amage10 C.1Repairable areas T and W11 C.2Radial car tyre injury limits12 D.1 Repairable areas T and W12 D.2 Commercial vehicle radial tyre injury limits12 E.1Repairable area T in terms of percentage of nominal section width of tyre14 E.2Diagonal (cross) ply tyre injury limits: size of penetration da
13、mage14 F.1Repairable areas T and W15 F.2Diagonal (cross) ply car tyre injury limits15 G.1Repairable areas T and W16 G.2Diagonal (cross) ply commercial vehicle tyre injury limits16 H.1 Motorcycle and scooter tyre injury limits17 L.1Inner tube injury limits20 M.1 Calculated values for area T20 License
14、d Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 159f : 1997 ii BSI 1997 Figures 1Typical section of diagonal ply car tyre5 2Typical section of radial ply car tyre6 3Typical section of diagonal ply commercial veh
15、icle tyre7 4Typical section of radial ply commercial vehicle tyre8 B.1Repairable and non-repairable areas for penetration damaged tyres10 C.1Repairable and non-repairable areas for radial ply car tyres11 C.2Typical sidewall damage for radial ply car tyres11 D.1 Repairable and non-repairable areas fo
16、r radial ply commercial vehicle tyres13 D.2 Typical sidewall damage for radial ply commercial vehicle tyres13 E.1Repairable and non-repairable areas for penetration damaged tyres14 F.1Repairable and non-repairable areas for radial ply car tyres15 G.1Repairable and non-repairable areas for diagonal (
17、cross) ply textile tyres for commercial vehicles16 H.1 Repairable and non-repairable areas for motorcycle and scooter tyres17 L.1Typical area damage for inner tubes19 L.2Typical split damage for inner tubes19 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11
18、:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 1997iii BS AU 159f : 1997 Foreword This British Standard has been prepared by Technical Committee AUE/3, and specifies procedures for assessing the suitability of a damaged tyre for repair and for carrying out repairs. This revision supersedes BS AU
19、 159e : 1990, which is withdrawn. As in the 1981 and 1990 editions of this British Standard, it is required in this edition that repaired tyres and tubes are able to operate at their original speed and load capabilities, and that punctured or damaged tyres are removed from their wheel rims for inter
20、nal examination for secondary damage, which, if ignored, could be a safety hazard. Therefore, plugs externally applied to fitted tyres, or liquid sealants, are not recognized as acceptable repair methods. Repairs for limited run-flat tyres and temporary use spare tyres are not covered by this Britis
21、h Standard; reference should be made to the tyre manufacturer concerning this. Repairs to inner tubes are covered, but repairs for commercial vehicle steel diagonal (cross) ply tyres are not, as this type of tyre is considered obsolete. The 1973 edition of this British Standard allowed for the use o
22、f an inner tube to repair very small penetrations in tubeless tyres. This method was not given in the 1981 and 1990 editions or the present edition; instead, it is essential that the tyre itself is repaired in accordance with this British Standard. Good workshop practice for tyre repair is included
23、in this British Standard, with emphasis on conditions during vulcanizing to ensure that carcasses are cured in the relaxed shape. In this edition, the concept of major and minor repairs is further clarified over previous editions. A major repair is defined as requiring a reinforced repair patch, and
24、 a minor repair requires a rubber only repair. It is required that all major repairs are identified and marked in the vicinity of the repair, giving the repairers name or identification mark and the number of this British Standard. Marking is not required for minor repairs. Compliance with a British
25、 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 to iv, pages 1 to 20, an inside back cover and a back cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec
26、09 02:11:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ivblank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 19971 BS AU 159f : 1997 Specification Introduction In the course of its life, a tyre may be sub
27、jected to an enormous amount of use, and may be damaged in many ways. It is imperative that the work of repairing a tyre is entrusted only to competent companies that accept total responsibility for the repair, after careful specialist examination to decide whether or not a repair is possible. 1 Sco
28、pe This British Standard specifies requirements for the repair of diagonal ply and radial ply pneumatic tyres for motorcycles, scooters, cars and commercial vehicles, primarily designed for use on the public highway and first used after 3 January 1933. It specifies inspection procedures, performance
29、 criteria, repair materials, and marking requirements, for both tubed and tubeless tyres. Requirements for repairing tubes and inflation valves are also included. This British Standard does not apply to: a) tyres designed for use on pre-1933 vehicles, as their design and construction may be unique a
30、nd outside the range of tyres in current use; b) T-type temporary use spare tyres; c) temporary repairs; d) use of liquid sealants introduced into tubed or tubeless tyres to remake the air retention property (see clause 10); e) tyres for use on agricultural motor vehicles, agricultural trailers or a
31、gricultural trailed appliances; f) tyres containing sealant gel (refer to the manufacturer for repair information); g) specialist repairs carried out by the original tyre manufacturer. 2 Normative reference The following normative document contains provisions which, through reference in this text, c
32、onstitute provisions of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies. BS AU 50-1Tyres and wheels Part 1: Tyres 3 Definitions For the pu
33、rposes of this British Standard, the following definitions apply. NOTE. Figures 1 to 4 supplement the definitions given in this clause. 3.1 Definitions related to structure 3.1.1 diagonal (cross) ply tyre Pneumatic tyre in which the ply cords extend to the bead and lie at alternate angles substantia
34、lly less than 90 to the centreline of the tread. 3.1.2 radial ply tyre Pneumatic tyre in which the ply cords extend to the bead and lie substantially at 90 to the centreline of the tread, the carcass stabilized by an essentially inextensible circumferential belt. 3.1.3 bias-belted tyre Pneumatic tyr
35、e of the diagonal (cross) ply type, with the carcass restricted by a belt comprising two or more layers of substantially inextensible cord material laid at alternate angles smaller than those of the carcass. NOTE. For the purposes of this British Standard, a bias-belted tyre may be treated as a diag
36、onal (cross) ply tyre. 3.1.4 temporary use spare tyre Tyre intended only for temporary use, under restricted driving conditions, and of different type to those fitted for normal driving conditions. 3.1.5 T-type temporary use spare tyre Temporary use spare tyre designed for use at higher inflation pr
37、essures than for standard and reinforced tyres. 3.2 Definitions related to service 3.2.1 ply rating (PR) Index of tyre strength used to identify a tyre with its recommended maximum permitted load when used for a specific service (see BS AU 50-1). NOTE. The ply rating does not necessarily represent t
38、he number of plies in a tyre. 3.2.2 service description Combination of a tyres load index and speed symbol (see tables 1 and 2). 3.2.3 load index Numerical code associated with the maximum load a tyre can carry at the speed indicated by its speed symbol (see tables 1 and 2). 3.2.4 speed symbol Symbo
39、l indicating the speed at which a tyre can carry the load corresponding to its load index or indices (see tables 1 and 2). 3.3 Definitions related to main components 3.3.1 bead Part of a pneumatic tyre shaped and structured to fit and hold the tyre to the rim. 3.3.2 bead heel Part of the bead that f
40、ills the angle formed by the junction of the rim flange and the bead seat. 3.3.3 bead toe Innermost part of the bead opposite the heel. 3.3.4 belt Layer(s) of material(s) beneath the tread, laid substantially in the direction of the tread centreline, restricting the carcass in a circumferential dire
41、ction (radial ply tyres only). Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 BSI 1997 BS AU 159f : 1997 3.3.5 breaker Intermediate ply between carcass and tread (diagonal ply tyres only). NOTE. See also 3.3
42、.13. 3.3.6 casing Worn tyre comprising carcass and remaining tread and sidewall rubber. 3.3.7 carcass Structural part of a tyre, not including the tread and outermost rubber of the sidewalls, which, when inflated, bears the load on the tyre. 3.3.8 chafer Material (in the bead area) used to protect t
43、he carcass against rim chafing. 3.3.9 cord Textile or non-textile strands (threads) used in various components of the tyre. 3.3.10 crown Area between the shoulders of a tyre. 3.3.11 inner-lining Layer of rubber, from bead toe to bead toe, on the inside of the carcass. NOTE. In tubeless tyres the inn
44、er-lining has air-retaining properties. 3.3.12 ply Layer of rubber-coated parallel cords. 3.3.13 protective breaker Optional strip of ply material between the tread and the belt, used to minimize damage to the belt (commercial vehicle radial ply tyres only). 3.3.14 sidewall Part of a pneumatic tyre
45、between the tread and the bead. 3.3.15 sidewall rubber Rubber layer on the sidewall of the tyre and outside of the carcass, which may include ornamental or protective ribs and fitting lines. 3.3.16 shoulder Area between the sidewall and tread. 3.3.17 shoulder ply Optional bracing strip of ply materi
46、al laid at an angle to the carcass cords under the edge of the belt. 3.3.18 tread Part of the pneumatic tyre intended to contact the road. 3.3.19 tubeless tyre Pneumatic tyre designed for use without an inner tube. 3.4 Definitions relating to repair 3.4.1 patch Tyre or tube repair unit able to vulca
47、nize to the inside of a tyre or outside of a tube, with the object of sealing a penetration, and, if necessary, providing reinforcement (see 3.4.2 to 3.4.6). 3.4.2 rubber only patch Patch containing no restricting or reinforcing cords, used for tube repairs and minor penetration repairs in tyres. 3.
48、4.3 combination plug-patch Shaped moulded unit combining a patch with a stem protruding from the centre of the bonding face, used for the dual purpose of sealing and filling a penetration in a tyre. 3.4.4 reinforced patch Patch containing material, in addition to rubber, often in the form of cords o
49、r cables of textile or non-textile material, that impart additional strength while maintaining ability to flex compatibly in normal service when bonded onto a tyre carcass. 3.4.5 reinforced cross ply patch Type of reinforced patch in which the cords are oriented to align approximately with the ply cords in a cross ply tyre. 3.4.6 reinforced radial ply patch Type of reinforced patch in which the cords are oriented to align approximately with the ply cords in a radial ply tyre. 3.4.7 major (reinforced) repair Repair requiring a reinforced patch. NOTE. Major repairs are full
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