ISO 20957-6:2021
(Main)Stationary training equipment — Part 6: Treadmills, additional specific safety requirements and test methods
Stationary training equipment — Part 6: Treadmills, additional specific safety requirements and test methods
This document specifies safety requirements and test methods for treadmills in addition to the general safety requirements and test methods of ISO 20957‑1. It is intended that this document is applied together with ISO 20957‑1. This document deals with significant hazards, hazardous situations and events relevant to stationary training equipment used as intended and under the conditions of misuse foreseeable by the manufacturer (see Clause 4). This document is applicable to power-driven as well as to non-power/manually driven training equipment type treadmills (hereafter referred to as treadmills) with the classes S, H and I and classes A, B and C regarding accuracy. This document is not applicable to treadmills which are manufactured before it publication.
Équipement d'entraînement fixe — Partie 6: Tapis de course, exigences spécifiques de sécurité et méthodes d'essai supplémentaires
Le présent document fixe des exigences de sécurité et des méthodes d'essai applicables aux tapis de course, en complément des exigences de sécurité générales et des méthodes d'essai qui figurent dans ISO 20957-1. Le présent document est destiné à être appliqué avec l'ISO 20957-1. Le présent document traite des phénomènes dangereux significatifs, des situations et des événements dangereux liés aux appareils d'entraînement fixes utilisés comme prévu et dans les conditions de mauvais usage prévisible par le fabricant (voir Article 4). Le présent document est applicable aux appareils d'entraînement entraînés manuellement ou par un moteur, de type «tapis de course» (appelés ci-après «tapis de course») des classes S, H et I et des classes A, B et C en ce qui concerne la précision. Le présent document ne s'applique pas aux tapis de course qui ont été fabriqués avant la date de sa publication.
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INTERNATIONAL ISO
STANDARD 20957-6
Second edition
2021-02
Stationary training equipment —
Part 6:
Treadmills, additional specific safety
requirements and test methods
Équipement d'entraînement fixe —
Partie 6: Tapis de course, exigences spécifiques de sécurité et
méthodes d'essai supplémentaires
Reference number
ISO 20957-6:2021(E)
©
ISO 2021
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ISO 20957-6:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
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ISO copyright office
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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ISO 20957-6:2021(E)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 List of significant hazards . 3
5 Classification . 3
6 Safety requirements and/or protective measures . 5
6.1 General . 5
6.2 Squeeze and shear points within the accessible area . 5
6.3 Transmission elements and rotating parts . 6
6.4 Temperature rise . 6
6.5 Safety stop (emergency stop) . 6
6.5.1 General. 6
6.5.2 Characteristics . 6
6.5.3 Actuator(s) . 7
6.6 Immobilization method . 7
6.7 Stability . 7
6.8 Static strength of the running surface . 7
6.9 Endurance . 7
6.10 Handrails . 8
6.10.1 General. 8
6.10.2 Treadmills with side handrails only . 8
6.10.3 Treadmills with front handlebar and side handrails . 8
6.11 Foot rails . 8
6.12 Running surface . 8
6.13 Acceleration . 9
6.14 Heart rate control mode . 9
6.15 Folding treadmills . 9
6.16 Noise . 9
6.17 Electrical safety . 9
6.18 Additional classified requirements . 9
6.19 Additional warning label .11
7 Verification of the safety requirements and/or protective measures .11
7.1 Testing of transmission elements and rotating parts .11
7.2 Testing of temperature rise .11
7.3 Testing of the safety stop (emergency stop) .11
7.4 Testing of the actuator(s) .11
7.5 Testing of immobilization method .11
7.6 Stability testing .12
7.6.1 Testing in training position .12
7.6.2 Testing in folded position .12
7.6.3 Testing of the foot rail support system .12
7.7 Load testing of the running surface .12
7.8 Testing of endurance .12
7.8.1 Requirement for the test apparatus .12
7.8.2 Test method .12
7.9 Testing of side handrails/front handlebar .14
7.10 Testing of foot rails .14
7.11 Testing of the running surface .14
7.12 Testing of the acceleration .14
7.13 Testing of the heart rate control mode .14
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ISO 20957-6:2021(E)
7.14 Testing of the folding treadmills .14
7.14.1 Inadvertent release when packaged .14
7.14.2 For treadmills where the running surface is designed to be folded up
when stored.14
7.14.3 For treadmills where the console is designed to be folded down when stored .15
7.14.4 Testing the maximum handling force .15
7.15 Testing of the accuracy of time, speed and distance indications .15
7.16 Noise testing .15
8 Test report .15
9 Marking .16
10 Additional instructions for use.16
Bibliography .18
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ISO 20957-6:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by the European Committee for Standardization (CEN) (as EN 957-
6:2010+A1: 2014) and was adopted, without modification other than those given below by Technical
Committee ISO/TC 83, Sports and other recreational facilities and equipment.
— references to EN documents were replaced with their equivalent ISO standard;
— in Clause 4, the NOTE was changed to body text;
— in 6.1, "comply" changed to "conform";
— in 6.11, in the NOTE, "may" was changed to "might";
— in Clause 9, the footnote was changed to a NOTE;
— minor editorial changes.
This second edition cancels and replaces the first edition (ISO 20957-6:2005), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— specifications and definitions amended;
— list of significant hazards added (Clause 4);
— modification of safety requirements and/ or protective measures (Clause 6);
1)
— deletion of the reference to ISO 5904 in 6.11;
— requirements and test methods for the transmission elements and rotating parts amended;
— requirements and test methods for safety stop amended;
1) Withdrawn.
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ISO 20957-6:2021(E)
— requirements for the static loading, especially for class S amended;
— requirement for the endurance testing of class I added;
— requirements and test methods for treadmills with front handlebar and side handrails amended;
— requirements for the footrail amended;
— requirements for the permanent marking and test methods of the running surface added;
— requirements and test methods for the acceleration of power-driven treadmills added;
— requirements and test methods for folding treadmills added;
— requirements and test methods for the heart rate control mode added;
— requirements and test methods for noise added;
— requirements for the marking of the maximum lateral position added;
— modification of the testing of endurance (7.8);
— modification of the testing of the accuracy of time, speed and distance indications (7.15);
— requirements for the test report and marking added;
— additional instructions for use extended;
— modification of Figure 1;
— addition of Figure 2;
— modification of Figure 3;
— editorial changes.
A list of all parts in the ISO 20957 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
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ISO 20957-6:2021(E)
Introduction
This document is a type C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
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INTERNATIONAL STANDARD ISO 20957-6:2021(E)
Stationary training equipment —
Part 6:
Treadmills, additional specific safety requirements and
test methods
1 Scope
This document specifies safety requirements and test methods for treadmills in addition to the general
safety requirements and test methods of ISO 20957-1. It is intended that this document is applied
together with ISO 20957-1.
This document deals with significant hazards, hazardous situations and events relevant to stationary
training equipment used as intended and under the conditions of misuse foreseeable by the
manufacturer (see Clause 4).
This document is applicable to power-driven as well as to non-power/manually driven training
equipment type treadmills (hereafter referred to as treadmills) with the classes S, H and I and classes A,
B and C regarding accuracy.
This document is not applicable to treadmills which are manufactured before it publication.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements
(IEC 60335‑1:2010, modified)
EN 60601-1, Medical electrical equipment — Part 1: General requirements for basic safety and essential
performance (IEC 60601‑1:2005)
ISO 11201, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
plane with negligible environmental corrections
ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying approximate environmental
corrections
ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12947-1:1998, Textiles — Determination of the abrasion resistance of fabrics by the Martindale
method — Part 1: Martindale abrasion testing apparatus
ISO 20957-1:2013, Stationary training equipment — Part 1: General safety requirements and test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 20957-1 and the following apply.
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ISO 20957-6:2021(E)
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
treadmill
training equipment with a running surface on which walking or running activity takes place, where the
feet are free to leave the running surface
3.2
length of the running surface
usable length of the running surface
Note 1 to entry: See l in Figure 2.
Note 2 to entry: Figure 1 is intended only to give examples and to illustrate the names of the components.
3.3
width of the running surface
usable width of the running surface excluding rear roller guards
Note 1 to entry: See b in Figure 2.
3.4
front handlebar
frontally located bar provided for partially supporting the user’s weight with the user’s arm(s) and
enhancing stability whilst exercising and to assist in emergency dismounts
EXAMPLE At low speed and high inclines.
3.5
side handrail
rail(s) located at the sides of the running surface provided for partially supporting the user’s weight
with the user’s arm(s) and enhancing stability whilst exercising and to assist in emergency dismounts
3.6
foot rail
area beside the running surface intended for the user to stand on when mounting, dismounting or
during a pause in the exercise
3.7
emergency dismount
act of the user quickly interrupting the exercise by getting off the running surface
Note 1 to entry: Emergency dismount can be done e.g. by grabbing the front handlebar or both side handrails and
jumping with both feet on the foot rails.
3.8
heart rate control mode
programme that allows the user to train maintaining a predetermined pulse level by adjusting the
speed and/or incline automatically according to the actual pulse of the user
3.9
display
device that provides information to the user
3.10
protective cover
cover provided to protect the user from inadvertent access to hazardous parts
EXAMPLE Moving parts, gear systems or hot surfaces.
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ISO 20957-6:2021(E)
3.11
folding treadmill
treadmill designed with some components that can be moved to allow a more compact non-useable
storage position
4 List of significant hazards
Table 1 shows the significant hazards, hazardous situations and events, as far as they are dealt with in
this document, identified by risk assessment as significant for this type of equipment and which require
action to eliminate or reduce the risk.
For a particular treadmill, a risk assessment should be carried out by the manufacturer to identify any
additional significant hazards so that suitable protective measures can be taken. Additional hazards
are outside the scope of this standard.
For identification and evaluation of hazards, ISO 12100 shall apply.
Table 1 — List of significant hazards and major sources of these hazards associated with
treadmills
*) Description Associated activity/situation
1. Mechanical hazards
1.1. Crushing Inclining
Folding
1.2. Shearing Inclining
Folding
1.3. Drawing-in or Trapping Rear roller
Drive system
1.4. Falling Sudden starts/stops
Excessive speed variation
Support failure
1.5. Abrasion Contact with moving running surface
1.6. Slippery surfaces Slipping and Falling
1.7. Stored energy Folded treadmills falling down
Springs or elastomeric devices prior to
assembly
2. Electrical hazards
2.1. Electrocution Contact with live components
3. Thermal Hazards
3.1 Burns Contact with hot surfaces
4. Hazards generated by neglecting ergo-
nomic principles in design process
4.1. Ineffective ergonomics Size or location of support surfaces
Running surface dimensions
4.2. Human errors, human behaviour Reasonably foreseeable misuse
5. Noise Hazards
5.1. Disturbing acoustic communication Moving treadmill motor and belt
5 Classification
ISO 20957-1:2013, Clause 4 shall apply.
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ISO 20957-6:2021(E)
Key
1 display
2 safety stop (cord type)
3 safety stop (mushroom type)
4 heart rate hand sensor
5 front handlebar
6 side handrail
7 front protective cover
8 foot rail
9 non slip surface
10 running deck
11 running surface
12 rear roller
13 rear roller protective cover
14 marking of the running surface
Figure 1 — Example of a treadmill
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ISO 20957-6:2021(E)
Key
A line located at 1/3 of the length of the running surface measured from B
B front end of the running surface
a
identifiable feature according to 6.3
b width of the running surface
b minimum required width of the running surface according to Table 2
min
l length of the running surface
Figure 2 — Definition of main measures
6 Safety requirements and/or protective measures
6.1 General
The equipment shall conform with the safety requirements and/or protective measures of this clause.
In addition, the equipment shall be designed according to the principles of ISO 12100 for relevant but
not significant hazards, which are not dealt with by this document.
Fixed guards shall be fixed by systems that can be opened or removed only with tools. Fixed guards
that have to be removed for maintenance, adjustment or inspection shall be retained by fasteners that
are retained in the guard or machine when the guard is removed.
6.2 Squeeze and shear points within the accessible area
All parts of treadmills, including any folding mechanism, shall be in accordance with ISO 20957-1:2013,
5.3.3 and 5.3.4 in folded position, during folding and in useable position. For folding treadmills the lock
for securing the equipment is excluded.
Where the inclination can be changed during operation thus causing the distance between any part of
the equipment and the floor to become smaller than 60 mm, the speed of inclination shall not exceed
1°/s and the user shall be able to stop this movement.
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ISO 20957-6:2021(E)
6.3 Transmission elements and rotating parts
Drawing-in shall be prevented at all points between the running surface and fixed or moving parts of
the treadmills or the floor.
Identifiable feature(s) indicating the acceptable lateral position(s) of the running surface shall be
a
provided on the treadmill [see footnote in Figure 2 and Clause 10 g)].
When tested in accordance with 7.1, it shall not be possible that the test finger becomes trapped between
the rear roller guard and the running surface. With the running surface centred, the rear roller guard
shall overlap the edges of the running surfaces by min. 10 mm and max. 40 mm (see Figure 3).
The vertical gap between the running surface and the rear roller guard or overlapping foot rails shall
not be more than 9,5 mm.
Dimensions in millimetres
Figure 3 — Example of a rear roller guard (min. 10 mm and max. 40 mm)
6.4 Temperature rise
When tested in accordance with 7.2, accessible parts of the treadmill shall not have a temperature
greater than 65 °C.
6.5 Safety stop (emergency stop)
6.5.1 General
All power-driven treadmills shall be equipped with a safety stop switch, which shall include a push-
button operated switch and/or a pull-cord operated switch.
The push-button type or pull cord safety stop actuator shall be in a reachable position in front of the
user and in an area of ±180 mm parallel to the centreline of the running surface.
Test in accordance with 7.3.
If the push-button type safety stop actuator is outside this area it shall be duplicated on the opposite
side except when a pull-cord actuator is provided.
6.5.2 Characteristics
Operating the safety stop shall result in the machine cutting off the main power of the motor and the
inclination system without relying on any software functions.
The contacts of manually operated safety stop devices shall ensure positive opening. The achievement
of contacts separation shall be the direct result of a specified movement of the switch actuator through
non-resilient members. Emergency stop relays or manually reset fail-safe relays may be used.
It shall not be possible to restore the circuit until the actuator of the safety stop device has been
manually reset. After restoring the circuit, the equipment shall restart with standstill and the incline
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ISO 20957-6:2021(E)
shall stay the same or reset according to 6.2. Where several safety stop devices are provided, the circuit
shall not be restored until all actuators previously operated have been reset.
Test in accordance with 7.3.
6.5.3 Actuator(s)
Actuators of safety stop devices shall be coloured red. The actuator of a push-button o
...
NORME ISO
INTERNATIONALE 20957-6
Deuxième édition
2021-02
Équipement d'entraînement fixe —
Partie 6:
Tapis de course, exigences spécifiques
de sécurité et méthodes d'essai
supplémentaires
Stationary training equipment —
Part 6: Treadmills, additional specific safety requirements and test
methods
Numéro de référence
ISO 20957-6:2021(F)
©
ISO 2021
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ISO 20957-6:2021(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2021
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
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Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
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ISO 20957-6:2021(F)
Sommaire Page
Avant-propos .v
Introduction .vii
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 2
4 Liste des phénomènes dangereux significatifs . 3
5 Classification . 4
6 Exigences de sécurité et/ou mesures de protection . 6
6.1 Généralités . 6
6.2 Points de compression et de cisaillement dans la zone accessible . 6
6.3 Éléments de transmission et pièces en rotation . 7
6.4 Hausse de température . 7
6.5 Arrêt de sécurité (arrêt d’urgence) . 7
6.5.1 Généralités . 7
6.5.2 Caractéristiques . 7
6.5.3 Actionneur(s) . 8
6.6 Méthode d’immobilisation . 8
6.7 Stabilité . 8
6.8 Résistance statique de la surface d’exercice . 8
6.9 Endurance . 8
6.10 Rampes . 9
6.10.1 Généralités . 9
6.10.2 Tapis de course comportant uniquement des rampes latérales . 9
6.10.3 Tapis de course comportant une barre antérieure et des rampes latérales . 9
6.11 Marchepieds . 9
6.12 Surface d’exercice .10
6.13 Accélération .10
6.14 Mode de résistance en fonction du rythme cardiaque .10
6.15 Tapis de course pliants .10
6.16 Bruit .10
6.17 Sécurité électrique .11
6.18 Exigences supplémentaires concernant les classes .11
6.19 Étiquette d’avertissement supplémentaire .12
7 Vérification des exigences de sécurité et/ou mesures de protection .12
7.1 Essai des éléments de transmission et des pièces en rotation .12
7.2 Essai de hausse de température .12
7.3 Essai de l’arrêt de sécurité (arrêt d’urgence) .13
7.4 Essai des actionneurs .13
7.5 Essai du mécanisme d’immobilisation .13
7.6 Essai de stabilité .13
7.6.1 Essai en position d’entraînement .13
7.6.2 Essai en position pliée .13
7.6.3 Essai du système support des marchepieds .13
7.7 Essai de charge de la surface d’exercice .13
7.8 Essai d’endurance .14
7.8.1 Exigences relatives à l’appareillage d’essai.14
7.8.2 Méthode d’essai .14
7.9 Essai portant sur les rampes latérales/la barre antérieure .15
7.10 Essai portant sur les marchepieds .15
7.11 Essai portant sur la surface d’exercice .16
7.12 Essai d’accélération .16
7.13 Essai du mode de résistance en fonction du rythme cardiaque .16
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ISO 20957-6:2021(F)
7.14 Essai des tapis de course pliants .16
7.14.1 Libération inopinée dans l’emballage .16
7.14.2 Tapis de course dont la surface d’exercice est conçue pour être pliée en
configuration de stockage .16
7.14.3 Tapis de course dont le pupitre de commande est conçu pour être plié en
configuration de stockage .16
7.14.4 Essai de la force maximale de manipulation .16
7.15 Essai de la précision des indications de temps, de vitesse et de distance .17
7.16 Essai portant sur le bruit .17
8 Rapport d’essai .17
9 Marquage .18
10 Instructions supplémentaires d’utilisation.18
Bibliographie .19
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ISO 20957-6:2021(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/ directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www .iso .org/ brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www .iso .org/ avant -propos.
Le présent document a été élaboré par le Comité Européen de Normalisation (CEN) (en tant que
l’EN 957-6:2010+A1: 2014) et a été adopté, sans modification autre que celles indiquées ci-dessous, par
le comité technique ISO/TC 83, Matériel et équipements de sports et autres activités de loisirs.
— remplacement des références aux documents EN par des références à des normes ISO équivalentes;
— modification de la NOTE à l’Article 4, en corps de texte;
— modification de «comply» en «conform» en 6.1; (ne concerne que la version anglaise)
— modification de «may» en «might» en 6.11; (ne concerne que la version anglaise)
— modification de la note de bas de page en NOTE à l’Article 9;
— modifications rédactionnelles mineures.
Cette deuxième édition annule et remplace la première édition (ISO 20957-6:2005), qui a fait l’objet
d’une révision technique.
Les principales modifications par rapport à l’édition précédente sont les suivantes:
— modification des spécifications et définitions;
— ajout de la liste des phénomènes dangereux significatifs (Article 4);
— modification des exigences de sécurité et/ou mesures de protection (Article 6);
1)
— suppression de la référence à l’ISO 5904 en 6.11;
1) Retirée.
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ISO 20957-6:2021(F)
— modification des exigences et méthodes d’essai pour les éléments de transmission et parties
rotatives;
— modification des exigences et méthodes d’essai pour les arrêts de sécurité;
— modification des exigences relatives à la charge statique, notamment pour la classe S;
— ajout d’exigences relatives à l’essai d’endurance de la classe I;
— modification des exigences et méthodes d’essai pour les tapis de course comportant une barre
antérieure et des rampes latérales;
— modification des exigences relatives au marchepied;
— ajout d’exigences relatives au marquage permanent ainsi qu’aux méthodes d’essai de la surface
d’exercice;
— ajout d’exigences et de méthodes d’essai relatives à l’accélération des tapis de couse entraînés par
un moteur;
— ajout d’exigences et de méthodes d’essai relatives aux tapis de course pliants;
— ajout d’exigences ainsi que de méthodes d’essai relatives au mode de résistance en fonction du
rythme cardiaque;
— ajout d’exigences et de méthodes d’essai relatives au bruit;
— ajout d’exigences relatives au marquage de la position latérale maximale;
— modification de l’essai d’endurance (7.8);
— modification de l’essai de la précision des indications de temps, de vitesse et de distance (7.15);
— ajout d’exigences relatives au rapport d’essai ainsi qu’au marquage;
— développement des instructions d’utilisation supplémentaires;
— modification de la Figure 1;
— ajout de la Figure 2;
— modification de la Figure 3;
— modifications rédactionnelles.
Une liste de toutes les parties de la série ISO 20957 se trouve sur le site web de l’ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www .iso .org/ fr/ members .html
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ISO 20957-6:2021(F)
Introduction
Le présent document est une norme de type C selon l’ISO 12100.
Les machines concernées et l’étendue des phénomènes dangereux, des situations dangereuses et des
événements dangereux couverts sont indiqués dans le domaine d’application du présent document.
Lorsque des dispositions de cette norme de type C sont différentes de celles qui sont indiquées dans
les normes de type A ou B, les dispositions de cette norme de type C prévalent sur les dispositions des
autres normes, pour les machines ayant été conçues et construites conformément aux dispositions de la
présente norme de type C.
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NORME INTERNATIONALE ISO 20957-6:2021(F)
Équipement d'entraînement fixe —
Partie 6:
Tapis de course, exigences spécifiques de sécurité et
méthodes d'essai supplémentaires
1 Domaine d’application
Le présent document fixe des exigences de sécurité et des méthodes d’essai applicables aux tapis de
course, en complément des exigences de sécurité générales et des méthodes d’essai qui figurent dans
ISO 20957-1. Le présent document est destiné à être appliqué avec l’ISO 20957-1.
Le présent document traite des phénomènes dangereux significatifs, des situations et des événements
dangereux liés aux appareils d’entraînement fixes utilisés comme prévu et dans les conditions de
mauvais usage prévisible par le fabricant (voir Article 4).
Le présent document est applicable aux appareils d’entraînement entraînés manuellement ou par
un moteur, de type «tapis de course» (appelés ci-après «tapis de course») des classes S, H et I et des
classes A, B et C en ce qui concerne la précision.
Le présent document ne s’applique pas aux tapis de course qui ont été fabriqués avant la date de sa
publication.
2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur
contenu, des exigences du présent document. Pour les références datées, seule l’édition citée s’applique.
Pour les références non datées, la dernière édition du document de référence s'applique (y compris les
éventuels amendements).
EN 60335-1, Appareils électrodomestiques et analogues — Sécurité — Partie 1: Exigences générales
(IEC 60335‑1:2010, modifiée)
EN 60601-1, Appareils électromédicaux — Partie 1: Exigences générales pour la sécurité de base et les
performances essentielles (IEC 60601‑1:2005)
ISO 11201, Acoustique — Bruit émis par les machines et équipements — Détermination des niveaux de
pression acoustique d'émission au poste de travail et en d'autres positions spécifiées dans des conditions
approchant celles du champ libre sur plan réfléchissant avec des corrections d'environnement négligeables
ISO 11202, Acoustique — Bruit émis par les machines et équipements — Détermination des niveaux de
pression acoustique d'émission au poste de travail et en d'autres positions spécifiées en appliquant des
corrections d'environnement approximatives
ISO 12100, Sécurité des machines — Principes généraux de conception — Appréciation du risque et
réduction du risque
ISO 12947-1:1998, Textiles — Détermination de la résistance à l'abrasion des étoffes par la méthode
Martindale — Partie 1: Appareillage d'essai d'abrasion de Martindale
ISO 20957-1:2013, Équipement d'entraînement fixe — Partie 1: Exigences générales de sécurité et
méthodes d'essai
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ISO 20957-6:2021(F)
3 Termes et définitions
Pour les besoins du présent document, les termes et les définitions de l’ISO 20957-1 ainsi que les
suivants s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en
normalisation, consultables aux adresses suivantes:
— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org/ obp
— IEC Electropedia: disponible à l’adresse http:// www .electropedia .org/
3.1
tapis de course
appareil d’entraînement comportant une surface d’exercice sur laquelle il est possible de marcher ou
courir, les pieds pouvant quitter librement la surface d’exercice
3.2
longueur de la surface d’exercice
longueur utilisable de la surface d’exercice
Note 1 à l'article: Voir l dans la Figure 2.
Note 2 à l'article: La Figure 1 n’est destinée qu’à fournir des exemples et à illustrer les dénominations des divers
éléments constitutifs.
3.3
largeur de la surface d’exercice
largeur utilisable de la surface d’exercice, excepté les protecteurs du rouleau arrière
Note 1 à l'article: Voir b dans la Figure 2.
3.4
barre antérieure
barre frontale prévue pour supporter une partie du poids de l’utilisateur, qui s’appuie dessus avec les
bras, et pour augmenter la stabilité pendant l’exercice et faciliter les dégagements d’urgence
EXEMPLE À faible vitesse et forte inclinaison.
3.5
rampes latérales
rampes situées sur les côtés de la surface d’exercice, prévues pour supporter une partie du poids de
l’utilisateur, qui s’appuie dessus avec les bras, et pour augmenter la stabilité pendant l’exercice et
faciliter les dégagements d’urgence
3.6
marchepied
zone située à côté de la surface d’exercice, sur laquelle l’utilisateur pose le pied lorsqu’il s’installe sur
l’appareil, en descend ou lorsqu’il fait une pause en cours d’exercice
3.7
dégagement d’urgence
action de l’utilisateur qui interrompt subitement l’exercice en dégageant la surface d’exercice
Note 1 à l'article: Un dégagement d’urgence peut s’effectuer, par exemple, en saisissant la barre antérieure ou les
rampes latérales et en sautant pour placer les deux pieds sur les marchepieds.
3.8
mode de résistance en fonction du rythme cardiaque
programme permettant à l’utilisateur de s’entraîner en maintenant un niveau prédéterminé de
pulsations cardiaques, par un réglage automatique de la vitesse et/ou de l’inclinaison en fonction du
pouls réel de l’utilisateur
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ISO 20957-6:2021(F)
3.9
console d’affichage
dispositif qui fournit des informations à l’utilisateur
3.10
carter de protection
carter destiné à protéger l’utilisateur contre tout accès involontaire à des parties dangereuses
EXEMPLE Parties mobiles, engrenages ou surfaces très chaudes.
3.11
tapis de course pliant
tapis de course dont le déplacement de certaines pièces permet d’adopter une configuration de stockage
non opérationnelle mais plus compacte
4 Liste des phénomènes dangereux significatifs
Le Tableau 1 présente les phénomènes dangereux significatifs, situations et événements dangereux
traités dans le présent document et identifiés par l’appréciation du risque comme étant significatifs
pour ce type d’appareil et qui nécessitent une action pour éliminer ou diminuer le risque.
Pour un tapis de course particulier, il convient que le fabricant procède à une appréciation du risque
pour identifier tous les phénomènes dangereux significatifs supplémentaires, de façon à pouvoir
prendre des mesures de protection appropriées. Les phénomènes dangereux supplémentaires ne font
pas partie du domaine d’application de la présente norme.
Pour l’identification et l’évaluation des phénomènes dangereux, l’ISO 12100 s’applique.
Tableau 1 — Liste des phénomènes dangereux significatifs et des principales sources de ces
phénomènes dangereux associés aux tapis de course
*) Description Activité/situation associée
1. Phénomènes dangereux mécaniques
1.1. Écrasement Inclinaison
Pliage
1.2. Cisaillement Inclinaison
Pliage
1.3. Entraînement ou emprisonnement Rouleau arrière
Système d’entraînement
1.4. Chute Démarrages/arrêts brutaux
Variation de vitesse excessive
Défaut du support
1.5. Abrasion Contact avec une surface d’exercice mobile
1.6. Surfaces glissantes Dérapage et chute
1.7. Énergie accumulée Chute des tapis de course pliés
Ressorts ou dispositifs en élastomère avant
assemblage
2. Phénomènes dangereux électriques
2.1. Électrocution Contact avec des éléments sous tension
3. Phénomènes dangereux thermiques
3.1 Brûlures Contact avec des surfaces chaudes
4. Phénomènes dangereux engendrés par le
non-respect des principes ergonomiques
lors de la conception
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ISO 20957-6:2021(F)
Tableau 1 (suite)
*) Description Activité/situation associée
4.1. Ergonomie inexistante Dimensions ou emplacement des surfaces
de support
Dimensions de la surface d’exercice
4.2. Erreurs humaines, comportement humain Mauvais usage raisonnablement prévisible
5. Phénomènes dangereux engendrés par
le bruit
5.1. Perturbation de la communication orale Moteur et courroie du tapis de course en
mouvement
5 Classification
L’Article 4 de l’ISO 20957-1:2013 doit s’appliquer.
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ISO 20957-6:2021(F)
Légende
1 console d’affichage
2 arrêt de sécurité (type cordon)
3 arrêt de sécurité (type champignon)
4 capteur manuel du rythme cardiaque
5 barre antérieure
6 rampes latérales
7 carter de protection antérieur
8 marchepied
9 surface antidérapante
10 planche de course
11 surface d’exercice
12 rouleau arrière
13 carter de protection du rouleau arrière
14 marquage de la surface d’exercice
Figure 1 — Exemple de tapis de course
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ISO 20957-6:2021(F)
Légende
A ligne située à 1/3 de la longueur de la surface d’exercice mesurée à partir de B
B extrémité avant de la surface d’exercice
a
élément identifiable selon 6.3
b largeur de la surface d’exercice
b largeur minimale requise de la surface d’exercice selon le Tableau 2
min
l longueur de la surface d’exercice
Figure 2 — Définition des mesures principales
6 Exigences de sécurité et/ou mesures de protection
6.1 Généralités
L’appareil doit être conforme aux exigences de sécurité et/ou aux mesures de protection du présent
article. De plus, l’appareil doit être conçu conformément aux principes de l’ISO 12100 en ce qui concerne
les phénomènes dangereux appropriés mais non significatifs, qui ne sont pas traités dans le présent
document.
Les protecteurs fixes doivent être fixés par des systèmes qui ne peuvent être ouverts ou retirés qu’avec
des outils. Les protecteurs fixes devant être enlevés pour la maintenance, le réglage ou l’inspection,
doivent être maintenus par des fixations qui sont conservées dans le protecteur ou la machine lorsque
le protecteur est enlevé.
6.2 Points de compression et de cisaillement dans la zone accessible
Toutes les parties des tapis de course, y compris les mécanismes de pliage, s’il y a lieu, doivent être
conformes à 5.3.3 et 5.3.4 de l’ISO 20957-1:2013, en position pliée, pendant le pliage et en position
d’utilisation. Pour les tapis de course pliants, le système de verrouillage est exclu.
Lorsque le niveau d’inclinaison peut être modifié en cours de fonctionnement, et qu’ainsi la distance
entre tout élément de l’appareil et le sol devient inférieure à 60 mm, la vitesse d’inclinaison ne doit pas
dépasser 1°/s et l’utilisateur doit pouvoir mettre fin à ce mouvement.
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ISO 20957-6:2021(F)
6.3 Éléments de transmission et pièces en rotation
Tout risque d’entraînement au niveau de l’ensemble des interfaces doit être évité entre la surface
d’exercice et les pièces fix
...
INTERNATIONAL ISO
STANDARD 20957-6
Second edition
Stationary training equipment —
Part 6:
Treadmills, additional specific safety
requirements and test methods
Équipement d'entraînement fixe —
Partie 6: Tapis de course, exigences spécifiques de sécurité et
méthodes d'essai supplémentaires
PROOF/ÉPREUVE
Reference number
ISO 20957-6:2020(E)
©
ISO 2020
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ISO 20957-6:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved
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ISO 20957-6:2020(E)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 List of significant hazards . 3
5 Classification . 3
6 Safety requirements and/or protective measures . 5
6.1 General . 5
6.2 Squeeze and shear points within the accessible area . 5
6.3 Transmission elements and rotating parts . 6
6.4 Temperature rise . 6
6.5 Safety stop (emergency stop) . 6
6.5.1 General. 6
6.5.2 Characteristics . 6
6.5.3 Actuator(s) . 7
6.6 Immobilization method . 7
6.7 Stability . 7
6.8 Static strength of the running surface . 7
6.9 Endurance . 7
6.10 Handrails . 8
6.10.1 General. 8
6.10.2 Treadmills with side handrails only . 8
6.10.3 Treadmills with front handlebar and side handrails . 8
6.11 Foot rails . 8
6.12 Running surface . 8
6.13 Acceleration . 9
6.14 Heart rate control mode . 9
6.15 Folding treadmills . 9
6.16 Noise . 9
6.17 Electrical safety . 9
6.18 Additional classified requirements . 9
6.19 Additional warning label .11
7 Verification of the safety requirements and/or protective measures .11
7.1 Testing of transmission elements and rotating parts .11
7.2 Testing of temperature rise .11
7.3 Testing of the safety stop (emergency stop) .11
7.4 Testing of the actuator(s) .11
7.5 Testing of immobilization method .11
7.6 Stability testing .12
7.6.1 Testing in training position .12
7.6.2 Testing in folded position .12
7.6.3 Testing of the foot rail support system .12
7.7 Load testing of the running surface .12
7.8 Testing of endurance .12
7.8.1 Requirement for the test apparatus .12
7.8.2 Test method .12
7.9 Testing of side handrails/front handlebar .14
7.10 Testing of foot rails .14
7.11 Testing of the running surface .14
7.12 Testing of the acceleration .14
7.13 Testing of the heart rate control mode .14
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ISO 20957-6:2020(E)
7.14 Testing of the folding treadmills .14
7.14.1 Inadvertent release when packaged .14
7.14.2 For treadmills where the running surface is designed to be folded up
when stored.14
7.14.3 For treadmills where the console is designed to be folded down when stored .15
7.14.4 Testing the maximum handling force .15
7.15 Testing of the accuracy of time, speed and distance indications .15
7.16 Noise testing .15
8 Test report .15
9 Marking .16
10 Additional instructions for use.16
Bibliography .18
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ISO 20957-6:2020(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by the European Committee for Standardization (CEN) (as EN 957-
6:2010+A1: 2014) and was adopted, without modification other than those given below by Technical
Committee ISO/TC 83, Sports and other recreational facilities and equipment.
— references to EN documents were replaced with their equivalent ISO standard;
— in Clause 4, the NOTE was changed to body text;
— in 6.1, "comply" changed to "conform";
— in 6.11, in the NOTE, "may" was changed to "might";
— in Clause 9, the footnote was changed to a NOTE;
— minor editorial changes.
This second edition cancels and replaces the first edition (ISO 20957-6:2005), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— specifications and definitions amended;
— list of significant hazards added (Clause 4);
— modification of safety requirements and/ or protective measures (Clause 6);
1)
— deletion of the reference to ISO 5904 in 6.11;
— requirements and test methods for the transmission elements and rotating parts amended;
— requirements and test methods for safety stop amended;
1) Withdrawn.
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ISO 20957-6:2020(E)
— requirements for the static loading, especially for class S amended;
— requirement for the endurance testing of class I added;
— requirements and test methods for treadmills with front handlebar and side handrails amended;
— requirements for the footrail amended;
— requirements for the permanent marking and test methods of the running surface added;
— requirements and test methods for the acceleration of power-driven treadmills added;
— requirements and test methods for folding treadmills added;
— requirements and test methods for the heart rate control mode added;
— requirements and test methods for noise added;
— requirements for the marking of the maximum lateral position added;
— modification of the testing of endurance (7.8);
— modification of the testing of the accuracy of time, speed and distance indications (7.15);
— requirements for the test report and marking added;
— additional instructions for use extended;
— modification of Figure 1;
— addition of Figure 2;
— modification of Figure 3;
— editorial changes.
A list of all parts in the ISO 20957 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
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ISO 20957-6:2020(E)
Introduction
This document is a type C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
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INTERNATIONAL STANDARD ISO 20957-6:2020(E)
Stationary training equipment —
Part 6:
Treadmills, additional specific safety requirements and
test methods
1 Scope
This document specifies safety requirements and test methods for treadmills in addition to the general
safety requirements and test methods of ISO 20957-1. It is intended that this document is applied
together with ISO 20957-1.
This document deals with significant hazards, hazardous situations and events relevant to stationary
training equipment used as intended and under the conditions of misuse foreseeable by the
manufacturer (see Clause 4).
This document is applicable to power-driven as well as to non-power/manually driven training
equipment type treadmills (hereafter referred to as treadmills) with the classes S, H and I and classes A,
B and C regarding accuracy.
This document is not applicable to treadmills which are manufactured before it publication.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements
(IEC 60335‑1:2010, modified)
EN 60601-1, Medical electrical equipment — Part 1: General requirements for basic safety and essential
performance (IEC 60601‑1:2005)
ISO 11201, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
plane with negligible environmental corrections
ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying approximate environmental
corrections
ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12947-1:1998, Textiles — Determination of the abrasion resistance of fabrics by the Martindale
method — Part 1: Martindale abrasion testing apparatus
ISO 20957-1, Stationary training equipment — Part 1: General safety requirements and test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 20957-1 and the following apply.
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ISO 20957-6:2020(E)
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
treadmill
training equipment with a running surface on which walking or running activity takes place, where the
feet are free to leave the running surface
3.2
length of the running surface
usable length of the running surface
Note 1 to entry: See l in Figure 2.
Note 2 to entry: Figure 1 is intended only to give examples and to illustrate the names of the components.
3.3
width of the running surface
usable width of the running surface excluding rear roller guards
Note 1 to entry: See b in Figure 2.
3.4
front handlebar
frontally located bar provided for partially supporting the user’s weight with the user’s arm(s) and
enhancing stability whilst exercising and to assist in emergency dismounts
EXAMPLE At low speed and high inclines.
3.5
side handrail
rail(s) located at the sides of the running surface provided for partially supporting the user’s weight
with the user’s arm(s) and enhancing stability whilst exercising and to assist in emergency dismounts
3.6
foot rail
area beside the running surface intended for the user to stand on when mounting, dismounting or
during a pause in the exercise
3.7
emergency dismount
act of the user quickly interrupting the exercise by getting off the running surface
Note 1 to entry: Emergency dismount can be done e.g. by grabbing the front handlebar or both side handrails and
jumping with both feet on the foot rails.
3.8
heart rate control mode
programme that allows the user to train maintaining a predetermined pulse level by adjusting the
speed and/or incline automatically according to the actual pulse of the user
3.9
display
device that provides information to the user
3.10
protective cover
cover provided to protect the user from inadvertent access to hazardous parts
EXAMPLE Moving parts, gear systems or hot surfaces.
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ISO 20957-6:2020(E)
3.11
folding treadmill
treadmill designed with some components that can be moved to allow a more compact non-useable
storage position
4 List of significant hazards
Table 1 shows the significant hazards, hazardous situations and events, as far as they are dealt with in
this document, identified by risk assessment as significant for this type of equipment and which require
action to eliminate or reduce the risk.
For a particular treadmill, a risk assessment should be carried out by the manufacturer to identify any
additional significant hazards so that suitable protective measures can be taken. Additional hazards
are outside the scope of this standard.
For identification and evaluation of hazards, ISO 12100 shall apply.
Table 1 — List of significant hazards and major sources of these hazards associated with
treadmills
*) Description Associated activity/situation
1. Mechanical hazards
1.1. Crushing Inclining
Folding
1.2. Shearing Inclining
Folding
1.3. Drawing-in or Trapping Rear roller
Drive system
1.4. Falling Sudden starts/stops
Excessive speed variation
Support failure
1.5. Abrasion Contact with moving running surface
1.6. Slippery surfaces Slipping and Falling
1.7. Stored energy Folded treadmills falling down
Springs or elastomeric devices prior to
assembly
2. Electrical hazards
2.1. Electrocution Contact with live components
3. Thermal Hazards
3.1 Burns Contact with hot surfaces
4. Hazards generated by neglecting ergo-
nomic principles in design process
4.1. Ineffective ergonomics Size or location of support surfaces
Running surface dimensions
4.2. Human errors, human behaviour Reasonably foreseeable misuse
5. Noise Hazards
5.1. Disturbing acoustic communication Moving treadmill motor and belt
5 Classification
ISO 20957-1:2013, Clause 4 shall apply.
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ISO 20957-6:2020(E)
Key
1 display
2 safety stop (cord type)
3 safety stop (mushroom type)
4 heart rate hand sensor
5 front handlebar
6 side handrail
7 front protective cover
8 foot rail
9 non slip surface
10 running deck
11 running surface
12 rear roller
13 rear roller protective cover
14 marking of the running surface
Figure 1 — Example of a treadmill
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ISO 20957-6:2020(E)
Key
A line located at 1/3 of the length of the running surface measured from B
B front end of the running surface
a
identifiable feature according to 6.3
b width of the running surface
b minimum required width of the running surface according to Table 2
min
l length of the running surface
Figure 2 — Definition of main measures
6 Safety requirements and/or protective measures
6.1 General
The equipment shall conform with the safety requirements and/or protective measures of this clause.
In addition, the equipment shall be designed according to the principles of ISO 12100 for relevant but
not significant hazards, which are not dealt with by this document.
Fixed guards shall be fixed by systems that can be opened or removed only with tools. Fixed guards
that have to be removed for maintenance, adjustment or inspection shall be retained by fasteners that
are retained in the guard or machine when the guard is removed.
6.2 Squeeze and shear points within the accessible area
All parts of treadmills, including any folding mechanism, shall be in accordance with ISO 20957-1:2013,
5.3.3 and 5.3.4 in folded position, during folding and in useable position. For folding treadmills the lock
for securing the equipment is excluded.
Where the inclination can be changed during operation thus causing the distance between any part of
the equipment and the floor to become smaller than 60 mm, the speed of inclination shall not exceed
1°/s and the user shall be able to stop this movement.
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ISO 20957-6:2020(E)
6.3 Transmission elements and rotating parts
Drawing-in shall be prevented at all points between the running surface and fixed or moving parts of
the treadmills or the floor.
Identifiable feature(s) indicating the acceptable lateral position(s) of the running surface shall be
a
provided on the treadmill [see footnote in Figure 2 and Clause 10 g)].
When tested in accordance with 7.1, it shall not be possible that the test finger becomes trapped between
the rear roller guard and the running surface. With the running surface centred, the rear roller guard
shall overlap the edges of the running surfaces by min. 10 mm and max. 40 mm (see Figure 3).
The vertical gap between the running surface and the rear roller guard or overlapping foot rails shall
not be more than 9,5 mm.
Dimensions in millimetres
Figure 3 — Example of a rear roller guard (min. 10 mm and max. 40 mm)
6.4 Temperature rise
When tested in accordance with 7.2, accessible parts of the treadmill shall not have a temperature
greater than 65 °C.
6.5 Safety stop (emergency stop)
6.5.1 General
All power-driven treadmills shall be equipped with a safety stop switch, which shall include a push-
button operated switch and/or a pull-cord operated switch.
The push-button type or pull cord safety stop actuator shall be in a reachable position in front of the
user and in an area of ±180 mm parallel to the centreline of the running surface.
Test in accordance with 7.3.
If the push-button type safety stop actuator is outside this area it shall be duplicated on the opposite
side except when a pull-cord actuator is provided.
6.5.2 Characteristics
Operating the safety stop shall result in the machine cutting off the main power of the motor and the
inclination system without relying on any software functions.
The contacts of manually operated safety stop devices shall ensure positive opening. The achievement
of contacts separation shall be the direct result of a specified movement of the switch actuator through
non-resilient members. Emergency stop relays or manually reset fail-safe relays may be used.
It shall not be possible to restore the circuit until the actuator of the safety stop device has been
manually reset. After restoring the circuit, the equipment shall restart with standstill and the incline
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ISO 20957-6:2020(E)
shall stay the same or reset according to 6.2. Where several safety stop devices are provided, the circuit
shall not be restored until all actuators previously ope
...
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