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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 186a:1983 Incorporating Amendment No. 1 Specification for Carry cot restraints UDC 629.113.042.2:614.862-053.3 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 186a
2、:1983 This British Standard, having been prepared under the direction of the Automobile Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 January 1983 BSI 02-2000 The following BSI references relate to the work on this standard: Committee referenc
3、e AUE/7 Draft for comment 82/71895 DC ISBN 0 580 13240 4 Committees responsible for this British Standard This British Standard was published under the direction of the Automobile Standards Committee AUE/-. Its preparation was entrusted to Technical Committee AUE/7 upon which the following bodies we
4、re represented: Automobile Association Consumer Standards Advisory Committee of BSI Consumers Association Department of Industry (Mechanical Engineering) Department of the Environment (Transport and Road Research Laboratory) Department of Transport Institute of Housing Man-made Fibres Producers Comm
5、ittee Medical Research Council Ministry of Defence Motor Cycle Association of Great Britain Motor Industry Research Association National Automobile Safety Belt Association Royal Automobile Club Royal Society for the Prevention of Accidents Society of Motor Manufacturers and Traders Limited Tape and
6、Webbing Manufacturers Association University of Birmingham Amendments issued since publication Amd. No.Date of issueComments 5072January 1986Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:30 GMT+00:00 2006, Uncontroll
7、ed Copy, (c) BSI BS AU 186a:1983 BSI 02-2000i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Definitions1 3General1 4Buckles and rigid parts2 5Straps2 6Performance2 7Instructions for use4 8Marking4 Appendix A Test procedures for hardware5 Appendix B Test procedures for th
8、e device5 Appendix C Environmental conditioning7 Appendix D Test of breaking strength of straps (static test)7 Figure 1 Body form for use with static strength test3 Figure 2 Example of standard car seat back for testing seat restraining device6 Publications referred to8 Licensed Copy: London South B
9、ank University, London South Bank University, Sat Dec 09 01:52:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 186a:1983 ii BSI 02-2000 Foreword This British Standard has been prepared under the direction of the Automobile Standards Committee at the request of the Department of Transport. Whilst
10、 these restraining devices are intended for use with carry cots, or specially designed carry cots which form an integral part of the system, by children up to 10 kg, it is recommended that consideration should be given to the use of a child restraining device which meets the requirements of BS AU 15
11、7b “Childrens restraining devices” or BS 3254 “Seat belt assemblies for motor vehicles” when the child reaches a weight of 9 kg. Certification. Attention is drawn to the certification facilities described on the inside back cover. A British Standard does not purport to include all the necessary prov
12、isions 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 obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, a
13、n inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. 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 01:52:30
14、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 186a:1983 BSI 02-20001 1 Scope This British Standard specifies requirements for restraining devices for separate use, i.e. as individual equipment, by child occupants of motor vehicles, who have a mass of less than 10 kg, in conjunction with a carry c
15、ot which may or may not comply with this British Standard (see 3.3.4). It is intended to reduce the probability of injury to children in an accident. This standard applies to devices intended for use in the forward-facing rear seating positions in the vehicle or in the forward-facing front seating p
16、ositions in such vehicles as light commercial vehicles where there is adequate space for a carry cot to be carried transversely. Manufacturing requirements are specified for the materials used and for the finish of buckles and other rigid parts. Tests are specified for the determination of the stren
17、gth and durability characteristics of the restraining devices and of their components. The standard does not specify requirements for the parts of the vehicle to which these restraining devices are anchored. Two groups of restraining devices are dealt with: Group A for general use with any carry cot
18、, and Group B incorporating a specially designed carry cot that forms an integral part of the system. NOTEThe titles of the publications referred to in this standard are listed on page 8. 2 Definitions For the purposes of this standard the following definitions apply. 2.1 carry cot a portable device
19、, including a suitable detachable pram body, having a mass of up to 12 kg with sides and a flat bottom for the carriage of a child in a lying position 2.2 carry cot restraint an assembly consisting of a set of straps to retain a carry cot in place transversely on a car seat 2.3 vehicle seat restrain
20、ing device a device to anchor a vehicle seat back to the vehicle structure to limit its forward movement and rotational movement in the lateral plane 2.4 buckle a quick release device that can readily be operated by an adult to release the child from attachment to the car with or without the carry c
21、ot 2.5 strap a flexible component designed to restrain the carry cot or the vehicle seat or both and to transmit forces to the vehicle structure 2.6 adjusters devices through which the webbing passes and by moving which the effective length of the straps can be controlled to suit the circumstances 2
22、.7 attachments devices at the end of the webbing straps used to attach those straps to the car structure 2.8 carry cot restraining components those components of an assembly that directly restrain the movement of the carry cot and are in contact with it 3 General 3.1 Construction. The carry cot rest
23、raining device shall be composed of the following. a) Group A devices. A set of carry cot restraining components and a vehicle seat restraining device together with their attachments. b) Group B devices. A carry cot, a set of carry cot restraining components and a vehicle seat restraining device and
24、 their attachments. 3.2 Design 3.2.1 Vehicle seat squab restraining device. A vehicle seat squab restraining device shall be designed and provided for limiting the forward movement and the rotational movement in a lateral plane of any part of the vehicle seat squab with which the device is used. 3.2
25、.2 Carry cot restraining device. The carry cot restraining device shall be designed so that the carry cot is held in position in the event of deceleration, overturning or rolling of the car and the general design, assembly and finish shall not incorporate any item which might cause injury to the chi
26、ld. 3.2.3 Ease of detachment. The carry cot restraining device shall be so designed that the carry cot can be readily removed and refitted by the use of one or two buckles. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:30 GMT+00:00 2006, Uncontrolled Cop
27、y, (c) BSI BS AU 186a:1983 2 BSI 02-2000 3.3 Performance 3.3.1 General. Restraining devices shall comply with 3.3.2 to 3.3.4 and clauses 4, 6 and 8 after being subjected to the environmental conditioning described in Appendix C. 3.3.2 Attachment and release of components. The design of any separable
28、 parts shall be such that either: a) the separable parts of the device cannot be put together incorrectly; or b) their connection other than as intended will result in the components either: 1) separating again under a force of 22 N; or 2) complying with clause 6. 3.3.3 Toxicity. The restraining dev
29、ice shall not contain dyes, plasticizers or any other substance that can be extracted in sufficient quantities that injury may be caused to the occupant of the carry cot. 3.3.4 Carry cot integrity. While undergoing the static test described in B.1, the carry cot incorporated in a group B device shal
30、l support the force specified. There shall be no intrusion of the survival space as indicated by a deformation of more than 10 mm into the plasticine on the body form shown in Figure 1. 4 Buckles and rigid parts 4.1 General. The buckle(s) shall be so positioned that it/they can be released with eith
31、er hand by an adult. It shall be possible to adjust the restraint so that the buckle(s) lie against the ends or the forward-facing side of the carry cot and its/their intention and operation are immediately obvious to a rescuer in an emergency. 4.2 Buckle release. The buckle shall be released by pre
32、ssing either a button or a similar device. The surface to which this pressure is applied shall have, in the position of actual unlocking: a) for enclosed devices, an area of not less than 4.5 cm2 and a width of not less than 15 mm; b) for non-enclosed devices, an area of not less than 2.5 cm2 and a
33、width of not less than 10 mm. The buckle release device shall be coloured red. No other part of the buckle shall be of this colour. 4.3 Finish. All parts shall be free from burrs and sharp edges and shall, if metal, show no base metal corrosion when tested in accordance with A.1. 4.4 Buckle test 4.4
34、.1 Force test. When tested in accordance with A.2 the buckle shall withstand a test force of 2,2 kN. After being subjected to the tests, the buckle shall be capable of functioning satisfactorily. 4.4.2 No-tension test. A buckle that has not previously been subjected to a force shall be used for this
35、 test. The force needed to open the buckle when it is not under tension shall be not less than 10 N measured perpendicularly to the surface of the operating device in its initial position. 5 Straps 5.1 In the case of two strap samples conditioned in accordance with C.1, the strap shall withstand a b
36、reaking force of not less than 3.6 kN when determined in accordance with Appendix D. The differences between the breaking forces of the two samples shall not exceed 10 % of the greater of the breaking forces measured. 5.2 In the case of strap samples conditioned in accordance with C.2, C.3, C.4 and
37、C.5 the average breaking force of the straps shall be not less than 75 % of the average of the forces determined in the test described in C.1 and not less than 3.6 kN. The difference between the breaking forces of the two samples shall not exceed 10 % of the greater of the breaking forces measured.
38、NOTEOne or more of these tests may be dispensed with if the composition of the material, or information already available, renders the test or tests superfluous. 6 Performance 6.1 Test samples. Separate, unused devices shall be tested for compliance with 6.2. 6.2 Static test. When tested in accordan
39、ce with B.1 the device shall withstand the appropriate force as shown below without deformation of the plasticine on the body form (see 3.3.4). The test shall be carried out at a temperature of 20 5 C. a) Groups A and B: 1) Group A: 4.3 kN; 2) Group B: 2 kN + (0.2 mass of carry cot in kg) kN. b) Sea
40、t restraining device. If it forms a separate device, the seat restraining device shall withstand a tension test of 6.2 kN when tested statically as a seat restraining device, but if the carry cot restraint anchorage points are incorporated in it, the test shall be carried out at 10.5 kN. 6.3 Assessm
41、ent 6.3.1 During the test the horizontal angle made by the front face of the body form with respect to the transverse axis of the test seat shall not exceed 20 about a vertical axis (angle in Figure 1). Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:30 GM
42、T+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 186a:1983 BSI 02-20003 Figure 1 Body form for use with static strength test Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 186a:1983 4 BSI 02-2000 6.3.2 On
43、completion of each of the tests described in B.1 no total failure of any component shall have occurred, no load bearing component shall have become separate from its mating part and the securing buckle(s) shall be capable of normal use. 6.3.3 On completion of the test described in B.1, the total amo
44、unt of slip of the strap through any buckle or adjusting device shall not exceed 25 mm for any one buckle or adjusting device. 6.3.4 After completion of the test described in B.1, the buckle(s) shall be tested as specified in B.2 for the force required to release it/them. This force shall not exceed
45、 90 N. The button(s) or similar operating device(s) shall be capable of withstanding this force without distortion. Releasing the buckle(s) shall enable the carry cot to be released immediately. 7 Instructions for use Every carry cot restraining device shall be accompanied by instructions with the f
46、ollowing content: a) the correct method of attachment of the device to the vehicle with particular regard to the anchorage being on a suitable part of the vehicle structure which shall be reinforced if necessary; b) the method of operating the buckle(s); c) the method of operating the adjusting devi
47、ce; d) the intended location of the buckle(s); e) the recommended methods of cleaning the straps; f) the need to replace the device when it has been used in a severe accident or when the straps show signs of fraying or having been cut; g) a general warning to the user of the danger of making any alt
48、erations or additions to the device without the approval of the manufacturer; h) a warning that the device should not be used without the seat restraining device which should be arranged to restrain any folding arm rest(s); j) a warning that, as the vehicle seat restraining device is designed only t
49、o limit the forward movement of the seat back, in the event of an accident it may not withstand the increased loading caused by loose articles striking the back of the seat; k) where an internal harness is not provided, the carry cot should be used with its cover in place. l) a recommendation that the childs head should be towards the centre of the vehicle. 8 Marking Each device shall be clearly and indelibly marked with the following: a) the number of this British Standard, i.e. BS AU 186a1); b) the name, trade mark or other means of identification of the manu