Bsi bs au 186a 1983 (2000)

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 Reproduced by IHS under l icense with BSI Uncontr[.]

Incor por a ting

A mend ment No 1

U C6 9.1 3.0 2.2:6 4.8 2-0 3.3

This Bri shStan ard, ha ing

b en pre ared u der the

directonof the Automo ile

Stan ards Commi e ,was

published u der the authoriy

ofthe Bo rd of BSI an

comes into efect on

3 J n ary1 8

© BSI0 -2 0

The folowing BSI references

relate to the work on this

stan ard:

Commi e reference AUE/7

Draft for comment8 /71 9 DC

ISBN 0 5 0 1 2 0 4

This BritishStand rd was publ shed u der the direction of the Automobi e

Stand rds Commit e AUE/ - Its prep ration was entrusted to Tech ical

Commit e AUE/7 upon which the fol owing bodies were represented :

Automobi e Association

Consumer Stand ards Adv isory Commit e of BSI

Consumer Association

Dep rtment of Industry ( Mechanical Eng ine ring )

Dep rtment of the Env ironment ( Transport an Roa Resear h La oratory )

Dep rtment of Transport

Institute of Housing

Man-mad e Fibres Producer ’ Commit e

Med ical Resear h Cou ci

Ministry of Defence

Motor Cy cle Association of Great Britain

Motor Ind ustry Resear h Association

National Automobi e Safety Belt Association

Roy al Automobie Club

Roy al Society for the Prev ention of Accidents

Society of Motor Man facturer and Tra er Limited

Ta e and W eb ing Man facturer ’ Association

Univ er ity of Birming ham

Am endm ents is ued sinc publ cation

Amd No Date of is ue Comments

5 72 J n ary 19 6 Indicated b a sidelne in the marg in

Pag e

Append ix D Test of breaking streng th of stra s ( static test) 7

Fig ure 1 — Bod y form for use with static streng th test 3

Fig ure 2 — Ex mple of stand rd car seat b ck for testing

This BritishStand ard has be n prep red u der the direction of the

AutomobieStand ards Commit e at the request of the Dep rtment of Transport

W hist these restraining d ev ices are intended for use with car y cots, or special y

d esig ned car y cots which form an integ ral p rt of the sy stem, b chid ren up

to10kg , it is recommended that consideration should be g iv en to the use of a

chi d restraining dev ice which me ts the requirements of BSAU15 b “ Chid r ens

r estr a ining d evic s” or BS325 “ Sea t bel a ss mble f r moto vehicle ” when the

chi d reaches a weig ht of9kg

Cer tifica tion Attention is drawn to the certification faci ties des ribed on

theinside b ck cov er

A British Stand ard d oes not purport to includ e al the neces ary prov isions of a

contract User of British Stand rd s are responsible for their cor ect a plcation

Com pl anc with a British Standard does not ofitself confer im m unity

f om leg al o l g ations

Sum mary of pag es

This document comprises a f ont cov er, an insid e font cov er, p g esi andi ,

p g es1 to8, an inside b ck cov er and a b ck cov er

This stand rd has be n up ated ( se copy rig ht d ate) an ma hav e ha

amendments incorporated This wi l be indicated in the amendment ta le on the

inside f ont cov er

1 Scope

This BritishStand rd specifies req uirements for

restraining dev ices for sep rate use, i.e.as

indiv id ual eq uipment, b chid oc up nts of motor

v ehicles, who hav e a mas of les than10kg , in

conju ction with a car y cot which ma or ma not

comply with this BritishStand rd ( se 3.3.4) It is

intended to red uce the prob bi ity of injury to

chidren in an ac id ent This stand rd a ples to

d ev ices intended for use in the forward -facing rear

seating positions in the v ehicle or in the

forward-facing f ont seating positions in such

v ehicles as lg ht commer ial v ehicles where there is

a equate sp ce for a car y cot to be car ied

transv er ely

Manufacturing req uirements are specified for the

materials used and for the finish of buckles and

other rig id p rts

Tests are specified for the d etermination of the

streng th and dura i ty characteristic of the

restraining dev ices and of their components The

stand ard do s not specify req uirements for the p rts

of the v ehicle to which these restraining d ev ices are

anchored

Two g roups of restraining d ev ices are d ealt with:

GroupA for g eneral use with any car y cot, and

GroupB incorporating a specialy d esig ned car y

cot that forms an integ ral p rt of the sy stem

NOT The t les of the publicatons refered to in this stan ard

are listed on p g e 8

2 Definitions

For the purposes of this stand rd the fol owing

d efinitions a ply

2.1

car y cot

a porta le dev ice, includ ing a suita le d etacha le

pram body , hav ing a mas of up to1 kg with sides

an a flat bot om for the car iag e of a chid in a ly ing

position

2.2

car y cot restraint

an as embly consisting of a set of stra s to retain a

car y cot in place transv er ely on a car seat

2.3

vehicle seat restraining devic

a d ev ice to anchor a v ehicle seat b ck to the v ehicle

structure to lmit its forward mov ement and

rotational mov ement in the lateral plane

2.4

buckle

a quick release d ev ice that can rea iy be operated

b an a ult to release the chi d fom at achment to

the car with or without the car y cot

2.5

stra

a flexible component desig ned to restrain the car y

cot or the v ehicle seat or both and to transmit for es

to the v ehicle structure

2.6

a juster

d ev ices throug h which the web ing p s es and b

mov ing which the efectiv e length of the stra s can

be control ed to suit the cir umstances

2.7

at achm ents

d ev ices at the en of the web ing stra s used to

at ach those stra s to the car structure

2.8

car y cot restraining com ponents

those components of an as embly that d irectly

restrain the mov ement of the car y cot and are in

contact with it

3 Genera l

3.1Construction The car y cot restraining d ev ice

shal be composed of the folowing

a) Gr oup A d evic s A set of car y cot restraining

components and a v ehicle seat restraining dev ice

tog ether with their at achments

b) Gr oup B d evic s A car y cot, a set of car y cot

restraining components and a v ehicle seat

restraining dev ice and their at achments

3.2 Desig n

3.2.1 Vehicle s a t squa b r estr a ining d evic A v ehicle

seat sq ua restraining dev ice shal be desig ned an

prov id ed for lmiting the forward mov ement an the

rotational mov ement in a lateral plane of any p rt of

the v ehicle seat sq ua with which the d ev ice is used

3.2.2 Ca r r y cot r estr a ining d evic The car y cot

restraining dev ice shal be d esig ned so that the

car y cot is held in position in the ev ent of

d eceleration, ov erturning or rol ing of the car and

the g eneral desig n, as embly an finish shal not

incorporate any item which might cause injury to

the chid

3.2.3 Ea se o d eta chment The car y cot restraining

d ev ice shal be so desig ned that the car y cot can be

rea i y remov ed an refit ed b the use of one or two

buckles

3.3 Per orm anc

3.3.1 Gener a l Restraining dev ices shal comply

with3.3.2 to3.3.4 an clauses4, 6 and8 after being

subjected to the env ironmental conditioning

d es ribed in Appendix C

3.3.2 A tta chment a nd r elea se o components The

d esig n of any sep ra le p rts shal be such that

either:

a) the sep ra le p rts of the dev ice can ot be put

tog ether incor ectly ; or

b) their con ection other than as intend ed wi

result in the components either:

1) sep rating ag ain u der a for e of2 N; or

2) comply ing with clause6

3.3.3 Toxiciy The restraining dev ice shal not

contain d y es, plasticiz r or any other substance

that can be extracted in suficient quantities that

injury ma be caused to the oc up nt of the car y

cot

3.3.4 Ca r r y cot integr ity W hie u d erg oing the

static test des ribed inB.1, the car y cot

incorporated in a g roupB d ev ice shal sup ort the

for e specified There shal be no intrusion of the

surv iv al sp ce as indicated b a deformation of more

than10mm into the plasticine on the bod form

shown in Fig ure 1

4 Buckles a nd rig id parts

4.1 General The buckle( s) shal be so positioned

that it/they can be released with either hand b an

a ult It shal be pos ible to a just the restraint so

that the buckle( s) le a ainst the ends or the

forward -facing side of the car y cot an its/their

intention and operation are immediately obv ious to

a res uer in an emerg ency

4.2 Buckle release.The buckle shal be released b

pres ing either a but on or a simiar dev ice The

surace to which this pres ure is a pl ed shal hav e,

in the position of actual u locking :

a) for enclosed d ev ices, an area of not les

than4.5cm

2

an a wid th of not les than15mm;

b) for non-enclosed dev ices, an area of not les

than2.5cm

2

an a wid th of not les than10mm

The buckle release d ev ice shal be coloured red No

other p rt of the buckle shal be of this colour

4.3 Finish All p rts shal be f e f om bur s an

sharp ed g es an shal, if metal, show no b se metal

cor osion when tested in ac ord nce withA.1

4.4 Buckle test

4.4.1For ce te t W hen tested in ac ord ance withA.2

the buckle shal withstan a test for e of2,2 kN

After being subjected to the tests, the buckle shal be

ca a le of fu ctioning satis actoriy

4.4.2 No-tension te t A buckle that has not

prev iously be n subjected to a for e shal be used for

this test The for e ne ded to open the buckle when

it is not u d er tension shal be not les than10N

measured perpendicularly to the surace of the

operating d ev ice in its initial position

5 Straps

5.1 In the case of two stra samples conditioned in

ac ord nce withC.1, the stra shal withstan a

breaking for e of not les than3.6kN when

determined in ac ord nce with Append ix D The

diferences betwe n the breaking for es of the two

samples shal not ex ce d10% of the g reater of the

breaking for es measured

5.2 In the case of stra samples cond itioned in

ac ord nce withC.2,C.3,C.4 andC.5 the av erag e

breaking for e of the stra s shal be not les

than7 % of the av erag e of the for es d etermined in

the test des ribed inC.1 an not les than3.6kN

The d iference betwe n the breaking for es of the

two samples shal not exce d10% of the g reater of

the breaking for es measured

N T One or more of these tests ma b disp nsed wih if the

comp si on of the material, or informaton alre dy v ila le,

ren er the test or tests sup rluous

6 Performance

6.1 Test sam ples Sep rate, un sed dev ices shal

be tested for compl ance with6.2

6.2 Static test W hen tested in ac ord ance withB.1

the dev ice shal withstand the a propriate for e as

shown below without d eformation of the plasticine

on the bod form ( se 3.3.4) The test shal be

car ied out at a temperature of20±5°C

a) Gr oups A a nd B :

1) Group A:4.3kN;

2) Group B: 2kN+( 0.2 × mas of car y cot in

kg ) kN

b) Sea t r estr a ining d evic I it forms a sep rate

dev ice, the seat restraining d ev ice shal

withstan a tension test of6.2 kN when tested

statical y as a seat restraining d ev ice, but if the

car y cot restraint anchorag e points are

incorporated in it, the test shal be car ied out

at10.5kN

6.3 Asses m ent

6.3.1 During the test the horiz ntal ang le mad e b

the f ont face of the bod y form with respect to the

transv er e a is of the test seat shal not exce d20°

a out a v ertical a is ( ang leµ in Fig ure 1)

Fig ure 1 — Bo y form for use with static streng th test

6.3.2 On completion of each of the tests des ribed

inB.1 no total faiure of any component shal hav e

oc ur ed, no loa bearing component shal hav e

become sep rate f om its mating p rt and the

securing buckle( s) shal be ca a le of normal use

6.3.3 On completion of the test des ribed inB.1, the

total amount of sl p of the stra throug h any buckle

or a justing dev ice shal not exce d25mm for any

one buckle or ad justing dev ice

6.3.4 After completion of the test des ribed inB.1,

the buckle( s) shal be tested as specified inB.2 for

the for e req uired to release it/ them.This for e shal

not exce d9 N The but on( s) or simiar operating

d ev ice( s) shal be ca a le of withstand ing this for e

without distortion

Releasing the buckle( s) shal ena le the car y cot to

be released immediately

7 Instructions for use

Ev ery car y cot restraining d ev ice shal be

ac omp nied b instructions with the folowing

content:

a) the cor ect method of at achment of the dev ice

to the v ehicle with p rticular reg ard to the

anchorag e being on a suita le p rt of the v ehicle

structure which shal be reinfor ed if neces ary ;

b) the method of operating the buckle( s);

c) the method of operating the a justing dev ice;

d ) the intended location of the buckle( s);

e) the recommended methods of cleaning the

stra s;

f) the ne d to replace the d ev ice when it has be n

used in a sev ere ac ident or when the stra s

show sig ns offay ing or hav ing be n cut;

g ) a g eneral warning to the user of the d ng er of

making any alterations or ad ditions to the dev ice

without the a prov al of the man facturer;

h) a warning that the dev ice should not be used

without the seat restraining d ev ice [which

should be ar ang ed to restrain any folding arm

rest( s)]

j) a warning that, as the v ehicle seat restraining

dev ice is d esig ned only to lmit the forward

mov ement of the seat b ck, in the ev ent of an

ac id ent it ma not withstand the inc eased

loa ing caused b lo se articles striking the b ck

of the seat;

k)where an internal harnes is not prov id ed , the

car y cot should be used with its cov er in place

l a recommend tion that the chid’s head should

be towards the centre of the v ehicle

8 Ma rking

Each d ev ice shal be clearly an ind el bly marked

with the fol owing :

a) the n mber of this British Stand ard,

i.e.BSAU18 a

1)

b) the name, trad e mark or other means of

id entification of the man facturer;

c) a statement to the efect that the mas of the

oc up nt of the car y cot with which the dev ice is

intend ed to be used shal be not g reater

than10kg

1)

Marking BSAU1 6 on or in relaton to a prod ct is a claim b the man facturer that the prod ct has b en man factured to

the re uirements of the stan ard.The ac uracy of such a claim is therefore solely the man facturer’s resp nsibiliy Enquiries as

to the a aila iliy of third p rty certficaton to sup ort such claims should b ad res ed to the Director,Qualiy Assurance

Div ision,BSI,May lan s Aven e, Hemel Hempste d,Hefts HP2 SQ for certficaton marks administered b BSI or to the

a pro riate authoriy for other certficaton marks

Appendix A Test procedur s for

hardwar

A.1 Cor osion resistanc

A.1.1 Te t a ppa r a tus The a p ratus consists of a

non-metal c container of suficient siz to prev ent

masking of the components being tested

A.1.2 Te t sa mple Batch the samples in g roups of

identical finishes or identical pred ominant finishes

where more than one finish is used on a component

Test the b tches sep rately

A.1.3 Sa lt soluton Prep re the solution b

d is olv ing10 p rts b mas of sod ium chloride in9

p rts of disti led water The salt shal be

substantialy f e of nickel and cop er an contain

on the dry b sis not more than0.1 % of sodium

iodide and not more than0.3% of total impurities

A.1.4 Pr oc d ur e Place the p rts to be tested in a

boi ng salt solution( A.1.3) for a period of15min,

then remov e them and immed iately drop them into

a simi ar salt solution at a temperature of20±2°C

After a period of not more than1 min, remov e them

and, without wiping of, leav e them to dry for24h at

a temperature of20±2°C

A.2 Buckle test

This is a tension test a pled throug h the stra on to

the buckle The test shal be car ied out on a

machine rated as g rad e A comply ing with BS1610

an of a ca acity such that the loa specified for the

buckle under test shal be not les than10% of the

ca acity of the machine rang e The machine shal be

either a constant rate of load ing machine, the rate

being such that the time taken to reach the specified

breaking for e is6 ±10s or a constant rate of

trav er e machine at a rate of1 0mm/ min I the

stra sl ps or breaks at the machine g rip at a for e

les than the a propriate test for e on the buckle,

the result of that test shal be d is arded

Appendix B Test procedur s for the

device

B.1 Static streng th of the devic

B.1.1 Ca r r y cot r estr a ining d evic Attach the d ev ice

to a test machine in a man er that is in ac ord ance

with the sup ler’s g eneral fit ing instructions

Ad just the stra s such that, u der a preloa

of10 N the f ont face of the bod y form is

within±5° of the transv er e a is of the test seat

and, at pointT, l es within3 0mm to4 0mm

forward of a ju ction betwe n the nominal seat

sq ua and the seat cushion

Apply the for e to the d ev ice b use of the bod y form

hav ing the dimensions shown in Fig ure 1, the rate

of for e a pl cation being such as to cause mov ement

of the bod form at a rate of not more

than10 mm/min Apply the for e horiz ntaly in a

forward direction in such a man er that the bod y

form is f e to rotate a out a v ertical a is throug h P

B.1.2 Vehicle s a t r estr a ining d evic Attach the seat

restraining dev ice to the stand rd car seat b ck

( se Fig ure 2) in ac ord nce with the sup ler’s

g eneral fit ing instructions Apply the test for e

horiz ntal y in a forward d irection

B.2 Buckle release test

After the test for static streng th of the as embly

d es ribed inB.1 reduce the for e on the dev ice to

z ro and a ply a dea for e of18 N W hi st

maintaining this for e measure the buckle release

for e I the as embly contains two buckles, the

buckle closest to the pointP shal be tested fir t

Either the bod y form shal be locked so that it

can ot rotate further a outP or the d ead for e shal

be remov ed, the fir t buckle recon ected , artificialy

if neces ary , the d ead for e rea pl ed and then the

second buckle tested Apply the buckle release for e

b a spring b lance or other for e measuring d ev ice

in a man er and d irection ty pical of that which

would normaly be a pl ed Apply the for e at

least3mm fom the ed g e of the push but on ac es

opening in such a man er as to prod uce the

ma imum releasing efect

NOT Care should b taken to ensure that the rele se fore

me sured is only that which is re uired to o erate the buckle

rele se

Material: fame of ste l to BS1 4 -1 an rods of0 5M1 ste l, as roled, to BS9 0-1.

All dimensions are in milimetres

N T 1 All the holes ha e a diameter of3 mm

N T 2 The fame should b strong enoug h to sup ort the a plied for e ( se 6.2)

Fig ure 2 — Ex mple of standard car seat b ck for testing seat restraining devic