Tiêu chuẩn iso 04210 9 2014

© ISO 2014 Cycles — Safety requirements for bicycles — Part 9 Saddles and seat post test methods Cycles — Exigences de sécurité des bicyclettes — Partie 9 Méthodes d’essai de la selle et du poste d’as[.]

Cycles — Safety requirements for

Part 9:

Cycles — Exigenc s de sécurité de s bic yclet e s —

Partie 9: Méth de s d’essai de la se lle et du p ste d’assise

Fir t edition

2 14-07-0

COPYRIGHT PROTECTED DOCUMENT

© ISO 2014

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Contents Pag e

F r eword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Test metho s 1

4.1 General 1

4.2 Sad le/seat-p s — S curity tes 1

4.3 Sad le — Static s r eng th tes 2

4.4 Sad le an seat-pos clamp — Fatig ue tes 4

4.5 S at-p s — Fatig ue tes and static s r eng th tes 5

ISO (he Int ernational Org nization for Stan ardization) is a worldwide fede ation of national s an ards

b dies (ISO membe b dies) The work of pr paring Int ernational Stan ards is normal y car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sp nsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe if ic t erms and ex r s ions r lat ed t o conformity

as es ment, as wel asinformation a out ISO’s ad e enc t o the WTO principles in the Te hnical Bar ie s

t o Trade (TBT) se the folowing URL: F or word - Supplementary information

The committ ee r sp nsible for this document is ISO/TC149, Cycles , Subcommitt ee SC 1, Cycles a d major

s ub-as sembles

This f irs edition of ISO 42 0-9, t og ethe with ISO 42 0-1, ISO 42 0- 2, ISO 42 0-3, ISO 42 0-4, ISO 42 0-5,

ISO 42 0-6, ISO 42 0-7, an ISO 42 0-8, canc ls an r plac s ISO 42 0:1 9 , w hich has be n t ech icaly

r vised

ISO 42 0 consis s of the folowing part , un e the g ene al title Cycles — S fet y r q ir ment fr bicycles:

— Part 1: Terms a d de initio s

— Part 2 : R eq ir ments fr c it y a d tr kkin , y u g adult, mo ntain a d rac in bicycles

— Part 3 : Commo tes t meth ds

— Part 4 : Brakin tes t meth ds

— Part 5: Ste rin tes t meth ds

— Part 6 : Frame a d frk tes t meth ds

— Part 7: Whe l s a d rims tes t meth ds

— Part 8: Pedals a d dri ve sys temtes t meth ds

— Part 9: S d les a d s eat-p s t tes t meth ds

This Int ernational Stan ard has be n develo ed in r sp nse t o deman throughout the world, an the

aim has be n t o ensur that bicycles man factur d in compl anc with this Int ernational Stan ard

wi be as safe as is practicaly p s ible The t es s ha e be n designed t o ensur the s r ngth an

d ra i ty of in ivid al p rt as wel as of the bicycle as a w hole, deman ing high q alty throughout,

an conside ation of safety aspe t from the design s ag e onwards

The sco e has be n lmit ed t o safety conside ations an has spe ifical y a oided s an ardization of

comp nent

If the bicycle is t o be used on publc ro ds, national r gulations a ply

Cycles — Safety requirements for bicycles —

Part 9:

This part of ISO 42 0 spe if ies sad le an seat-pos t es methods for ISO 42 0- 2

2 Normati ve referenc es

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a ples F r un at ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a ples

ISO 42 0-1, Cycles — S fet y r q ir ments fr bicycles — Part 1: Te ms a d de initio s

ISO 42 0- 2:2 14, Cycles — S fet y r q ir ments fr bicycles — Part 2 : R eq ir ments fr c it y a d tr kkin ,

y u g adult, mo ntain a d rac in bicycles

ISO 42 0-3:2 14, Cycles — S fet y r q ir ment fr bicycles — Part 3: Commo tes t meth ds

3 Terms and definitions

F or the purposes of this document, the t erms an def initions given in ISO 42 0-1 a ply

4 Test methods

If a suspension seat-p s is inv lved, the t es ma be con uct ed with the suspension sy st em eithe fr e

t o o e at e or locked If it is locked, the pi ar shal be at it ma imum length

4.2 S ddle se t-post — Secur ity test

W ith the seat-pos cor e tly as embled t o the bicycle frame at minimum inse tion depth of the seat-pos

(as spe if ied in ISO 42 0- 2:2 14, 4.1 2), an the clamps tight ened t o the t orq e r commen ed b the

bicycle man factur r, a ply a for e of F

1

ve tical y downwards at a p int 2 mm from eithe the front

or r ar of the sad le, w hicheve prod c s the gr at er t orq e on the sad le clamp The sad le shal be

positioned in the seat-p s clamp as embly as def ined b the sad le man factur r’ s rai markings or

ins ructions Maintain this for e for 1 min R emo e this for e an a ply a lat eral for e of F

2 horizontaly

at a p int 2 mm from eithe the front or r ar of the sad le an maintain this for e for 1 min, w hicheve

prod c s the gr at er t orq e on the clamp ( e Figur 1) The for es ar given in Ta le 1 The f ixtur shal

besuch that it does not damag e the surfac of the sad le

Table 1 — F or es o saddle

For ces in new tons

Bicycle ty e

City an trek ing

bicycles

You g ad lt bicycles Mou tain bicycles Racing bicycles

Ver ic l forc , F

1

Horiz ntal forc , F

2

Dimensions in milimetr es

Key

1 minimum insertion-depth mar k

2 bicycle frame

Figure 1 — S ddle/se t-post — S curity test

4.3 S ddle — Static str eng th test

Position the sad le in it ma imum r arward dir ction as defined b the sad le man factur r’ s rai

markings or ins ructions, int o a suita le fixtur r pr sentative of a seat-p s clamp as embly Tight en

the clamps t o the t orq e r commen ed b the bicycle man factur r, an a ply for es of 40 N in turn

un e ther ar an nose of the sad le co e , as shown in Figur 2, ensuring that the for e is not a pl ed t o

any part of the chas is of the sad le The lo d a plcation p int is on the longitu inal plane of the sad le

at 2 mm from the b ck (front) of the sad le If thesad le design is such that it can ot ac ept a c ntr lne

lo d a plcation, the lo d shal be symmetricaly a pl ed at two p int of the sad le L ading on the r ar

of the sad le shal be symmetrical a out it longitu inal a is, as shown in Figur 3

Figure 2 — S ddle — Static strength test

Dimensions in milimetr es

4.4 S ddle and se t-post clamp — F tig ue test

4.4.1 General

S at-p s scan influenc t es faiur s of sad les F or this r ason, a sad le shal be t est ed in combination

with a seat-p s as r commen ed b the sad leman factur r

4.4.2 Test metho

Inse t the seat-p s t o it minimum inse tion depth (as spe if ied in ISO 42 0- 2:2 14, 4.1 2) in a rigid

mount r pr sentative of that on the bicycle an with it a is at 7 ° t o the horizontal The sad le shal be

p sitioned in the seat-pos clamp as embly in a ma imum r arward dir ction as def ined b the sad le

man factur r’s rai markings or ins ructions A djus the sad le t o have it up e surfac in a horizontal

plane an tight en the clampt o the t orq e r commended b thebicycle man factur r Ap ly a r peat ed,

ve tical y-downward for e of 10 0 Nfor 2 0 0 0cycles, in the position shown in Figur 4, b means of

a p d 3 0 mm long × 80 mm diamet er t o pr vent localz d damag e of the sad le co e The ma imum

t es fr q ency shal be maintained as spe if ied in ISO 42 0-3:2 14, 4.5

Key

1 rig id mou t

2 minimum insertion-depth mar k

3 pad (leng th = 3 0 mm, diameter =8 mm)

Figure 4 — S d le and se t-p st clamp fatigue test

4.5 S at-post — F tig ue test and static str eng th test

4.5.1 General

In the folowing t es , if a suspension seat-p s isinv lved, the t es shal be con uct ed with the suspension

syst em adjust ed t o give ma imum r sis anc

4.5.2 Test metho for stag e 1 ( atig ue test)

A seat-pos shal be inse t ed t o the minimum inse tion depth (as spe if ied in ISO 42 0- 2:2 14, 4.1 2)

in a suita le fixtur with a r pr sentative seat colar an clamped t o theman factur r’ s r commen ed

t orq e The seat-pos shal be f ix ed at an angle of 7 ° from horizontal, as shown in Figur 5

S cur an ext ension-b r t o the sad le at achment point b the a pro riat e at achment f it ing such

that the bar ext en s r arwards an downwards at an angle of 1 ° below the horizontal t o pe mit the

a plcation of a ve tical t es for e at a dis anc of 7 mm from the c ntr of thesad le clamp w he e the

c ntr lne of the clamp int erse t the a is of the b r, as shown in Figur 5

Ap ly a r peat ed, ve ticaly downward, dynamic for e of F

3

t o the p int desc ibed a o e an shown

in Figur 5 for 1 0 0 0 cycles The for es ar given in Ta le 2 The ma imum t es fr q ency shal be

maintained as spe if ied in ISO 42 0-3:2 14, 4.5

Table 2 — F or es on se t-post

For ces in new tons

Bicycle ty e

City an trek ing

bicycles

You g ad lt bicycles Mou tain bicycles Racing bicycles

Forc , F3

Dimensions in milimetr es

4.5.3 Test metho for stag e 2 (static str eng th test)

A seat-pos shal be inse t ed t o the minimum inse tion-depth (as spe if ied in ISO 42 0- 2:2 14, 4.1 2)

in a suita le f ixtur with a r pr sentative seat colar an clamped t o theman factur r’ s r commen ed

t orq e The seat-p s shal be fix ed at an angle of 7 ° from the horizontal, as shown in Figur 6

A for e of F

4

shal be ex ert ed verticaly on the sad le clamp for a d ration of 1 min The displac ment at

the lo ding p int hal be cons antly monit or d d ring t es ing The for es ar given in Ta le 3

Table 3 — F or es on se t-post

For ces in new tons

Bicycle ty e

City an trek ing

bicycles

You g ad lt bicycles Mou tain bicycles Racing bicycles

Forc , F

4

Key

1 minimum insertion-depth mar k

Figure 6 — S at-post — Static strength test

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