Tiêu chuẩn iso 20957 4 2016

© ISO 2016 Stationary training equipment — Part 4 Strength training benches, additional specific safety requirements and test methods Équipement d’entraînement fixe — Partie 4 Bancs pour haltères, exi[.]

Stationary training equipment —

Part 4:

Éq ipement d’entraînement fixe —

Partie 4 : B ancs p ur h ltè es,e xigence s spécifique s de sécurité et

méth de s d’e ssai sup lémentaire s

S con edition

2 16-1 -1

Refer ence n mb r

ISO 2 9 7-4:2 16(E)

COPYRIGHT PROTECTED DOCUMENT

© ISO 2016, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of

the r eq eser

ISO c pyrig ht ofic

C de Blan on et 8 • C 4 1

CH-1 14 Vernier, Geneva, Sw itzerlan

Tel + 12 7 9 011

Fax 412 7 9 0 4

c pyrig ht@iso.or g

www.iso.or g

F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Clas ification 1

5 S fety r equirements 1

5.1 General 1

5.2 Benches with fixed b r bel sup ort 1

5.2.1 Stabi ty of the b r bel 1

5.2.2 L teral s a i ty of benches with fixed b r bel sup ort 2

5.2.3 L ng itu inal stabi ty of benches with fixed b r bel supp rt 2

5.3 Fr ee-stan ing b r bel supp rt 2

5.4 Dimensions of the b r bel sup ort 2

5.5 Bar bel sup ort str eng th and stabi ty 2

5.6 L ading 2

5.7 Bar bel sup ort 3

6 Test metho s 3

6.1 General 3

6.1.1 Dimensional che k 3

6.1.2 Visual examination 3

6.1.3 Pe formanc tes 3

6.2 Tes ing of r otational s a i ty of the b rbel 3

6.3 Tes ing of r otational s a i ty of benches w ith fixed b r bel sup orts 4

6.4 Tes ing of long itudinal s a i ty 4

6.5 Tes ing of b r bel sup ort str eng th and s a i ty 4

7 Test rep r t 5

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

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly 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 sponsible 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

For an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lated to conformity as es ment,

as wel as information a out ISO’s adhe enc to the Wor ld Trade Org nization (WTO) principles in the

Te h ical Bar ie s to Trade (TBT) se the folowing URL: www.iso.org/ iso/for word.html

ISO 2 9 7-4 was pr p r d b the E ro ean C mmitt ee Stan ardization (CEN) Te hnical C mmitt ee

CEN /TC 1 6, S orts,pla gro nd a d othe r c reatio al f c ilties a d eq ipment, in cola oration with ISO

Te hnical C mmitt ee TC 8 , S orts a d othe r c reatio al f c ilties a d eq ipment, in ac ordanc with

the a r ement on t ech ical co pe ation between ISO an CEN (Vienna Agr ement)

This se on edition canc ls an r plac s the firs edition (ISO 2 9 7-4:2 0 ), w hich has be n

t ech icaly r vised with the folowing chang es:

— publ cation as an EN ISO;

— formulation al gned with ISO 2 9 7-1;

— Cla use 5 “ Safety r q ir ment ”spe ified an r s ructur d;

— Cla use 6 “Tes methods” spe ified an r s ructur d;

— normative r fe enc s updat ed

A l s of al p rt in theISO 2 9 7 se ies can be fou d on the ISO websit e

This document conc rns the safety of s r ngth training benches It is int en ed t o be used in conju ction

with ISO 2 9 7-1 The r q ir ment of this document take priority o e the r q ir ment in

ISO 2 9 7-1

Stationary training equipment —

Part 4:

Streng th training benches, additional specific safety

This document spe if ies safety r q ir ment for s ationary s r ngth training benches and fr

e-s an ing b rbel racks in ad ition t o the g ene al safety r q ir ment of ISO 2 9 7-1 It is int en ed t o be

r ad in conjunction with ISO 2 9 7-1

This document is a pl ca le t o s ationary training eq ipment ty e benches ( y e 4 ) (he einaft er

r fe r d t o as benches) with theclas es S, Han Iac ording t o ISO 2 9 7-1

2 Normati ve r eferences

The folowing document ar r fe r d t o in the t ext in such a wa that some or al of their cont ent

cons itut es r q ir ment of this document F or dat ed r fe enc s, only the edition cit ed a ples F or

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 2 9 7-1, Statio ar y trainin eq ipment — Part 1: G ene al s afet y r q ir ment a d tes t meth ds

3 Terms and definitions

F or the purposes of this document, the t erms an def initions given in ISO 2 9 7-1 a ply

ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:

— IECEle tro edia: a aia le at ht p:/ www.ele tro edia.org

— ISO Onlne brow sing plat orm:a ai a le at ht p:/ www.iso.org o p

4 Clas ification

The clas if ication shal be ac ording t o ISO 2 9 7-1

5 Safety requirements

5.1 General

Depen ing on the design of the training eq ipment, the folowing r q ir ment shal a ply as

a pro riat e

5.2 Benches with fix d bar bel suppor ts

5.2.1 Stabiity of the barbel

Ove turning of the b rbel b an u eq al lo d shal be pr vent ed eithe b the dis anc betwe n the

supp rt or safety devic

Tes in ac ordanc with 6.2.

5.2.2 Lateral stabiity of benches with fixed bar bel suppor ts

Benches with f ix ed b rbel supp rt shal be s a le w hen lo ded with u eq al lo d at right angles t o

the longitu inal a is

Tes in ac ordanc with 6.3

5.2.3 L ng itudinal stabi ity of benches with fixed bar bel sup or ts

Benches with fixed b r bel sup ort shal be s a le in the longitu inal dir ction with r spe t to the bench

Tes in ac ordanc with 6.4

5.3 Free-standing bar bel suppor ts

Fr e-s an ing barbel sup ort shal ha e a devic for conne ting t o the grou d

Tes in ac ordanc with 6.1.2

5.4 Dimensions of the bar bel support

The front p rt of the sup ort (y ke), w hen measur d with a (3 ± 1) mm diamet er b r, shal ha e a

ve tical height of 2 mm t o 40 mm ( e fo tnot e a in Figur 1)a o e the lowes point of the r s ing b r

an the r ar part shal be ≥ 0 mm highe than the t op of the front of the sup ort (y ke) ( e Figur 1)

Dimensions in milimetr es

Key

a

Vertical height of the b rb l su port , 2 mm to 40mm

Figure 1 — Dimensio s of the barbel support

Tes in ac ordanc with 6.1.1

5.5 Bar bel support str eng th and stabi ity

The r ar p rt of the b rbel sup ort shal a sorb the lo ds without br akag e, shal not tip o e an shal

s i fu ction as int en ed b the man factur r, w hen subje t ed t o a non-symmetric b rbel imp ct

Tes in ac ordanc with 6.5

5.6 Loading

F or benchesclas es H, S and I, the intrinsic an extrinsic lo ding shal comply with ISO 2 9 7-1

5.7 Bar bel support

Any part of the eq ipment int en ed t o sup ort fr e weight shal be easiy ac es ible t o the use w hi e

ac epting or r placing the b rbel

Tes in ac ordanc with 6.1.3

6 Test methods

6.1.1 Dimensio al check

The measur ment hal be done with a pro riat e measur ment devic s

6.1.2 Visual examinatio

The visual ex mination shal be done u de pro e lghting

6.1.3 Per for manc e test

The t est ed me hanism shal be actuat ed as int en ed b the man factur r

6.2 Testing of rotational stabi ity of the bar bel

A sol d st eel b r w hich is (1 60 ± 5 ) mm long an has a diamet er of (2 ,5 ± 1) mm shal be plac d

c ntral y on the b rbel sup ort If the bench is designed for use with an Olympic siz st eel b r, use an

Olympic st eel b r of (22 0± 5 ) mm inst ead of the (1 6 0 ± 5 )mm st eel b r

Then one weight disk of

a) 1 kg for clas H, an

b) 2 kg for clas S

shal be plac d on one side ofthe st eel bar with mid-plane of the disk p sitioned ac ording t o Figur 2

Dimensions in milimetr es

Figure 2— Stabi ity test under unequal load

6.3 Testing of r otational stabi ity of benches w ith fix d bar bel suppor ts

Tes in ac ordanc with 6.2, but with the b rbel f ix ed an

a) with half of the ma imum training lo d spe if ied b the man factur r, or

b) with 40 kg for clas H an 5 kg for clas es S an I,

w hicheve is gr at er

6.4 Testing of long itudinal stabi ity

The bench shal bepositioned on a (1

0 1 +

) slo e with the bench orient ed such that the b rbel sup ort

is at the lowe en on the slo e an the b r bel sup ort hal be set t o the highes p sition ( e Figur 3)

A b rbel lo ded in ac ordanc with the ma imum lo d as spe ified b the man factur r, or 5 kg,

w hicheve is gr at er, shal be plac d on the b rbel sup ort

Figure 3 — Stabiity test in lo gitudinal directio

6.5 Testing of bar bel support str eng th and stabi ity

Cons ruct a t es a p ratus in a form of inve t ed ( 85 ± 5) mm long pen ulum that sup ort the

b rbel a o e the bench or seat an is designed an conf igur d so that w hen r leased, the lo d piv t

b ckwards an s rikes only one side of the b rbel sup ort at a time at a point (40 ±5) mm down from

the up e mos en of theb rbel sup ort from a dis anc of (3 0 ± 5)mm If a bench is at ached t o the

b rbel supp rt , a weight eq al t o the ma imum b dy weight as spe if ied b the man factur r shal be

dis ribut ed evenly o e the bench ( e Figur 4)

L ad the b rbel with

a) half of the ma imum training lo d spe if ied b the man factur r, or

b) 40 kg for clas H an 5 kg for clas es S and I,

w hicheve is gr at er

NOTE The overal height of the testing device can b varied t o achieve the impact location an maintain the

pen ulum length

During the t es , the training bench shal not be clamped t o the groun but a st op e shal be plac d

a ains the fe t t o pr vent sl p ing R epeat he t es proc d r 1 times for each side

Dimensions in milimetr es

Key

3 impact point

h

ma

max imum height

a

Initialposition of lo ded in erted pen ulum

b

Varia le heig ht o alow testing device to ac ommodate the b nch b ing tested

c

Max imum b d weight specified by the man factur er distributed evenly over the b nch

d

Bar bel not show n for simplicity

Figure 4 — Load test of the barbel supp rt

7 Test r eport

The t es r port shal inclu e at leas the information ac ording t o ISO 2 9 7-1 an r fe enc t o this

document, i.e ISO 2 9 7-4, an ISO 2 9 7-1

ICS  97.220.30

Pric based on 5pag es