SIST EN ISO 20957-5:2017

Stationary training equipment - Part 5: Stationary exercise bicycles and upper body crank training equipment, additional specific safety requirements and test methods (ISO 20957-5:2016)

ISO 20957-5:2016 specifies safety requirements for stationary exercise bicycles and upper body crank training equipment in addition to the general safety requirements of ISO 20957‑1.
ISO 20957-5:2016 is applicable to stationary training equipment type stationary exercise bicycles and upper body crank training equipment (type 5) as defined in Clause 3 within the classes S, H, I and A, B, C according to ISO 20957‑1.
Any attachment provided with the stationary exercise bicycles and upper body crank training equipment for the performance of additional exercises are subject to the requirements of ISO 20957‑1.
ISO 20957-5:2016 is not applicable to roller stands as they cannot be made safe in a reasonable way.

Stationäre Trainingsgeräte - Teil 5: Stationäre Trainingsfahrräder und Kurbel-Trainingsgeräte für den Oberkörper, zusätzliche besondere sicherheitstechnische Anforderungen und Prüfverfahren (ISO 20957-5:2016)

Dieses Dokument legt sicherheitstechnische Anforderungen für stationäre Trainingsfahrräder und Kurbel-Trainingsgeräte für den Oberkörper fest, zusätzlich zu den allgemeinen sicherheitstechnischen Anforderungen nach ISO 20957 1.
Dieses Dokument gilt für stationäre Trainingsgeräte vom Typ stationäre Trainingsfahrräder und Kurbel-Trainingsgeräte für den Oberkörper (Typ 5), wie in Abschnitt 3 definiert, in den Klassen S, H, I und A, B, C nach ISO 20957-1.
Jedes Zusatzgerät, das zusammen mit stationären Trainingsfahrrädern und Kurbel-Trainingsgeräten für den Oberkörper zur Durchführung von zusätzlichen Übungen geliefert wird, unterliegt den Anforderungen nach ISO 20957 1.
Dieses Dokument gilt nicht für Rollenständer, da diese nicht in angemessener Weise gesichert werden können.

Équipement d'entraînement fixe - Partie 5: Bicyclettes fixes d'exercice et équipements d'entraînement à manivelles de la partie supérieure du corps - Exigences spécifiques de sécurité et méthodes d'essai supplémentaires (ISO 20957-5:2016)

ISO 20957-5:2016 spécifie les exigences de sécurité relatives aux bicyclettes fixes d'exercice et aux appareils d'entraînement à manivelles de la partie supérieure du corps, qui viennent compléter les exigences générales de sécurité de l'ISO 20957‑1.
ISO 20957-5:2016 s'applique aux appareils d'entraînement fixes du type bicyclettes fixes d'exercice et appareils d'entraînement à manivelles de la partie supérieure du corps (type 5), tels que définis à l'Article 3, appartenant aux classes S, H, I et A, B, C selon l'ISO 20957‑1.
Tout accessoire fourni avec les bicyclettes fixes d'exercice et les appareils d'entraînement à manivelles de la partie supérieure du corps pour la réalisation d'exercices supplémentaires est soumis aux exigences de l'ISO 20957‑1.
ISO 20957-5:2016 ne s'applique pas aux supports à rouleaux, car ils ne peuvent pas être sécurisés de manière raisonnable.

Nepremična oprema za vadbo - 5. del: Nepremična kolesa za vadbo in oprema za vadbo zgornjega dela telesa, dodatne posebne varnostne zahteve in preskusne metode (ISO 20957-5:2016)

Ta del standarda ISO 20957 določa varnostne zahteve za nepremična kolesa za vadbo in opremo za vadbo zgornjega dela telesa poleg splošnih varnostnih zahtev standarda ISO 20957 1. Ta del standarda ISO 20957 se uporablja za nepremično opremo za vadbo, nepremična kolesa za vadbo in opremo za vadbo zgornjega dela telesa (tip 5), kakor je opredeljeno v točki 3 razredov S, H, I in A, B, C v skladu s standardom ISO 20957-1. Za morebitne nastavke za nepremična kolesa za vadbo in opremo za vadbo zgornjega dela telesa, s katero se izvajajo dodatne vaje, veljajo zahteve standarda ISO 20957 1. Ta del standarda ISO 20957 se ne uporablja za valjčna stojala, pri katerih ni mogoče zagotoviti ustrezne varnosti.

General Information

• Status: Published
• Public Enquiry End Date: 29-Oct-2015
• Publication Date: 19-Feb-2017
• ICS: 97.220.30 - Indoor sports equipment
• Technical Committee: SPO - Sports
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Jan-2017
• Due Date: 10-Mar-2017
• Completion Date: 20-Feb-2017
• Directive: 2001/95/EC - Directive 2001/95/EC of the European Parliament and of the Council of 3 December 2001 on general product safety
• Mandate: M/506 - Standardisation mandate issued to the European standardisation organisations (ESOs) to develop European standards for stationary training equipment
• Ref Project: EN ISO 20957-5:2016 - Stationary training equipment - Part 5: Stationary exercise bicycles and upper body crank training equipment, additional specific safety requirements and test methods (ISO 20957-5:2016)

Relations

• Replaces: SIST EN 957-5:2009 - Stationary training equipment - Part 5: Stationary exercise bicycles and upper body crank training equipment, additional specific safety requirements and test methods
• Effective Date: 01-Mar-2017

Overview

EN ISO 20957-5:2016 (ISO 20957-5:2016) specifies additional specific safety requirements and test methods for stationary exercise bicycles and upper body crank training equipment. It complements the general safety requirements of ISO 20957‑1 and applies to equipment defined as type 5 within the classes S, H, I and A, B, C (as classified in ISO 20957‑1). The standard is a CEN-adopted European Standard and supersedes EN 957-5:2009. It is not applicable to roller stands.

Key topics and requirements

EN ISO 20957-5:2016 focuses on practical safety and verification topics including:

• Transmission elements and rotating parts - guards, finger-probe tests and protective covers to reduce entrapment risk.
• Temperature rise - limits and test methods for components that can heat during use.
• Intrinsic loading - strength and load tests for seat pillars, handlebars, pedals and frame attachments.
• Seat and handlebar adjustments - insertion depth, locking and tilting safety checks.
• Stability - static and dynamic stability requirements to prevent tipping.
• Endurance and fatigue testing - long-term performance and durability verification.
• Performance tests - power accuracy and repeatability (including specific provisions for class A and class B equipment), constant power and heart-rate control mode tests.
• Test methods and reporting - dimensional, visual, tactile examinations; detailed test-device descriptions; required test report contents.
• Additional user information - required instructions and warnings for safe use.

The standard includes informative annexes (for example, determining moment of inertia) and specific test procedures for speed-dependent and speed-independent crank systems.

Applications and users

EN ISO 20957-5:2016 is intended for:

• Manufacturers and designers of stationary exercise bicycles and upper body crank equipment - to guide safe product design and validation.
• Test laboratories and conformity assessors - to perform required safety and performance tests.
• Product safety engineers and compliance officers - for risk assessment and documentation of test evidence.
• Specifiers and procurement teams (gyms, rehabilitation centers) - to evaluate equipment safety and suitability.
• Standards bodies and certification organizations - for harmonized national adoption and enforcement across CEN member countries.

Using this standard supports safer product development, consistent testing, and clearer documentation of safety performance for stationary training equipment.

Related standards

• ISO 20957‑1 - General safety requirements and test methods (mandatory companion document).
• EN 957-5:2009 - Previous version superseded by EN ISO 20957-5:2016.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2017
1DGRPHãþD
SIST EN 957-5:2009
1HSUHPLþQDRSUHPD]DYDGERGHO1HSUHPLþQDNROHVD]DYDGERLQRSUHPD]D
YDGER]JRUQMHJDGHODWHOHVDGRGDWQHSRVHEQHYDUQRVWQH]DKWHYHLQSUHVNXVQH
PHWRGH,62
Stationary training equipment - Part 5: Stationary exercise bicycles and upper body crank
training equipment, additional specific safety requirements and test methods (ISO 20957-
5:2016)
Stationäre Trainingsgeräte - Teil 5: Stationäre Trainingsfahrräder und Kurbel-
Trainingsgeräte für den Oberkörper, zusätzliche besondere sicherheitstechnische
Anforderungen und Prüfverfahren (ISO 20957-5:2016)
Équipement d'entraînement fixe - Partie 5: Bicyclettes fixes d'exercice et équipements
d'entraînement à manivelles de la partie supérieure du corps - Exigences spécifiques de
sécurité et méthodes d'essai supplémentaires (ISO 20957-5:2016)
Ta slovenski standard je istoveten z: EN ISO 20957-5:2016
ICS:
97.220.30 Oprema za dvoranske športe Indoor sports equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20957-5
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 97.220.30 Supersedes EN 957-5:2009
English Version
Stationary training equipment - Part 5: Stationary exercise
bicycles and upper body crank training equipment,
additional specific safety requirements and test methods
(ISO 20957-5:2016)
Équipement d'entraînement fixe - Partie 5: Bicyclettes Stationäre Trainingsgeräte - Teil 5: Stationäre
fixes d'exercice et équipements d'entraînement à Trainingsfahrräder und Kurbel-Trainingsgeräte für
manivelles de la partie supérieure du corps - Exigences den Oberkörper, zusätzliche besondere
spécifiques de sécurité et méthodes d'essai sicherheitstechnische Anforderungen und
supplémentaires (ISO 20957-5:2016) Prüfverfahren (ISO 20957-5:2016)
This European Standard was approved by CEN on 6 November 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20957-5:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 20957-5:2016) has been prepared by Technical Committee ISO/TC 83 "Sports
and other recreational facilities and equipment" in collaboration with Technical Committee
CEN/TC 136 “Sports, playground and other recreational facilities and equipment” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 957-5:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20957-5:2016 has been approved by CEN as EN ISO 20957-5:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 20957-5
Second edition
2016-12-01
Stationary training equipment —
Part 5:
Stationary exercise bicycles
and upper body crank training
equipment, additional specific safety
requirements and test methods
Équipement d’entraînement fixe —
Partie 5: Bicyclettes fixes d’exercice et équipements d’entraînement à
manivelles de la partie supérieure du corps — Exigences spécifiques
de sécurité et méthodes d’essai supplémentaires
Reference number
ISO 20957-5:2016(E)
©
ISO 2016
ISO 20957-5:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

ISO 20957-5:2016(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 3
5 Safety requirements . 6
5.1 General . 6
5.2 External construction . 6
5.2.1 Transmission elements and rotating parts . 6
5.2.2 Temperature rise . 7
5.3 Intrinsic loading . 7
5.3.1 Seat pillar and frame . 7
5.3.2 Handlebar and frame . 7
5.3.3 Pedal and frame . 7
5.4 Seat pillar — Seat . 7
5.4.1 Insertion depth . 7
5.4.2 Seat adjustment . 8
5.4.3 Seat tilting . 8
5.5 Handlebar stem . 8
5.6 Stability . 8
5.7 Additional requirements for recumbent stationary exercise bicycles, upper body
crank training equipment and combined crank training equipment . 8
5.7.1 Combined crank training equipment . 8
5.7.2 Seat system . 8
5.8 Additional classified requirements . 9
5.9 Endurance .11
5.10 Additional instructions for use .11
5.11 Additional warnings .12
6 Test methods .12
6.1 General .12
6.1.1 Dimensional check .12
6.1.2 Visual examination .12
6.1.3 Tactile examination.12
6.1.4 Performance test .12
6.2 Testing of temperature rise .12
6.3 Testing of transmission elements and rotating parts .13
6.3.1 Crank and protective cover finger probe examination .13
6.3.2 Other moving parts finger probe examination .13
6.4 Testing of intrinsic loading .13
6.4.1 Seat pillar and frame .13
6.4.2 Handlebar and frame .13
6.4.3 Pedal and frame .14
6.5 Testing of seat tilting .14
6.6 Testing of seat back rest .14
6.7 Testing of stability .14
6.8 Description of the test device .14
6.9 Testing of constant power mode .15
6.10 Testing of heart rate control mode .15
6.11 Testing of power accuracy for class A .15
6.11.1 General.15
6.11.2 Speed dependent crank training equipment .15
ISO 20957-5:2016(E)
6.11.3 Speed independent crank training equipment .16
6.12 Testing of power repeatability for class B .17
6.13 Endurance test .17
6.13.1 Speed independent crank training equipment .17
6.13.2 Speed dependent crank training equipment .17
7 Test report .18
Annex A (informative) Example of determining the moment of inertia J (looking from the
driving axis into a system).19
Bibliography .21
iv © ISO 2016 – All rights reserved

ISO 20957-5:2016(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 on 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 the following URL: www.iso.org/iso/foreword.html.
ISO 20957-5 was prepared by the European Committee Standardization (CEN) Technical Committee
CEN/TC 136, Sports, playground and other recreational facilities and equipment, in collaboration with ISO
Technical Committee TC 83, Sports and other recreational facilities and equipment, in accordance with
the agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 20957-5:2005), which has been
technically revised with the following changes:
— publication as an EN ISO;
— formulation aligned with ISO 20957-1;
— Clause 5 “Safety requirements” specified and restructured;
— Clause 6 “Test methods” specified and restructured;
— normative references updated.
A list of all parts in the ISO 20957 series can be found on the ISO website.
ISO 20957-5:2016(E)
Introduction
This document concerns the safety of crank training equipment. It amends and supplements
ISO 20957-1. The requirements of this document take priority over those in the general standard.
vi © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 20957-5:2016(E)
Stationary training equipment —
Part 5:
Stationary exercise bicycles and upper body crank training
equipment, additional specific safety requirements and
test methods
1 Scope
This document specifies safety requirements for stationary exercise bicycles and upper body crank
training equipment in addition to the general safety requirements of ISO 20957-1.
This document is applicable to stationary training equipment type stationary exercise bicycles and
upper body crank training equipment (type 5) as defined in Clause 3 within the classes S, H, I and A, B,
C according to ISO 20957-1.
Any attachment provided with the stationary exercise bicycles and upper body crank training
equipment for the performance of additional exercises are subject to the requirements of ISO 20957-1.
This document is not applicable to roller stands as they cannot be made safe in a reasonable way.
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.
ISO 4210-8:2014, Cycles — Safety requirements for bicycles — Part 8: Pedal and drive system test methods
ISO 20957-1, Stationary training equipment — Part 1: General safety requirements and test methods
EN 71-1, Safety of toys — Part 1: Mechanical and physical properties
3 Terms and definitions
For the purposes of this document the terms and definitions given in ISO 20957-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
crank training equipment
stationary apparatus on which work is carried out by turning a crank mechanism either by using the
lower body or the upper body or both
3.2
freewheel
mechanism which is designed to disengage the flywheel from the crank mechanism in one direction
ISO 20957-5:2016(E)
3.3
seat pillar
connection between the frame and the seat provided to adjust the height of the seat
3.4
seat tube
part of the frame where the seat pillar (3.3) is inserted
3.5
handlebar stem
connection between the frame and the handlebar provided to adjust the height of the handlebar
3.6
display
device that provides information to the user
3.7
load adjustment
device to change the level of resistance felt by the user
3.8
constant power mode
programme that allows the user to maintain a predetermined equipment power level independent of
pedalling revolutions per minute and can be adjustable to different levels
n
Note 1 to entry: PM=⋅2 ⋅⋅π
where
P is the power, in Watts;
M is the torque at the crank axle, in Newton metre;
n is the crank speed, in revolutions per minute.
3.9
adjustable torque
torque that allows the user to maintain a pre-determined equipment resistance level
Note 1 to entry: The power is only dependent upon the pedalling revolutions per minute and the chosen resistance
level (M = F · L)
where
M is the torque at the crank axle, in Newton metre;
F is the linear force applied, in Newton;
L is the length of the crank arm, in metre.
3.10
inertia factor
sum of the inertia moments of all rotating parts of the drive train multiplied by the square of the
appropriate gear ratio
Note 1 to entry: The gear ratio is the rotational speed of the flywheel divided by the rotational speed of the
relevant shaft beginning by the crank shaft.
2 © ISO 2016 – All rights reserved

ISO 20957-5:2016(E)
3.11
protective cover
cover provided to protect the user from inadvertent access to hazardous parts of the crank training
equipment (3.1)
Note 1 to entry: Hazardous parts include moving parts, gear systems, hot surfaces, etc.
3.12
adjustable handlebar
handlebars which can be adjusted for different training positions
3.13
heart rate control mode
programme that allows the user to maintain training with a predetermined pulse level by adjusting the
resistance automatically
3.14
seat system
system that consists of seat, seat back rest, adjustment and mounting components
4 Classification
The classification shall be according to ISO 20957-1.
NOTE Figure 1 to Figure 3 are intended only to give examples and to illustrate the names of the components.
ISO 20957-5:2016(E)
Key
1 handlebar 13 foot
2 display 14 crank
3 hand grip 15 flywheel
4 contact heart rate sensor 16 seat tube
5 handlebar stem 17 seat height adjustment
6 handlebar height adjustment 18 seat pillar
7 frame 19 horizontal seat adjustment
8 protective cover 20 seat
9 pedal strap 21 load adjustment
10 transport wheel 22 handlebar adjustment device
11 pedal 23 heart rate belt
12 power supply
Figure 1 — Example of upright stationary exercis
...