SIST EN 957-5:2009

SLOVENSKI STANDARD
SIST EN 957-5:2009
01-april-2009
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Stationary training equipment - Part 5: Stationary exercise bicycles and upper body crank
training equipment, additional specific safety requirements and test methods
Stationäre Trainingsgeräte - Teil 5: Stationäre Trainingsfahrräder und Kurbel-
Trainingsgeräte für den Oberkörper, zusätzliche besondere sicherheitstechnische
Anforderungen und Prüfverfahren
Appareils d'entraînement fixes - Partie 5: Bicyclettes d'exercice fixes et appareils
d'entraînement pour le haut du corps, exigences spécifiques de sécurité et méthodes
d'essai supplémentaires
Ta slovenski standard je istoveten z: EN 957-5:2009
ICS:
97.220.30 Oprema za dvoranske športe Indoor sports equipment
SIST EN 957-5:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 957-5:2009

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SIST EN 957-5:2009
EUROPEAN STANDARD
EN 957-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2009
ICS 97.220.30 Supersedes EN 957-5:1996
English Version
Stationary training equipment - Part 5: Stationary exercise
bicycles and upper body crank training equipment, additional
specific safety requirements and test methods
Appareils d'entraînement fixes - Partie 5 : Bicyclettes Stationäre Trainingsgeräte - Teil 5: Stationäre
d'exercice fixes et appareils d'entraînement pour le haut du Trainingsfahrräder und Kurbel-Trainingsgeräte für den
corps, exigences spécifiques de sécurité et méthodes Oberkörper, zusätzliche besondere sicherheitstechnische
d'essai supplémentaires Anforderungen und Prüfverfahren
This European Standard was approved by CEN on 26 December 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 957-5:2009: E
worldwide for CEN national Members.

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SIST EN 957-5:2009
EN 957-5:2009 (E)
Contents Page
Foreword .3
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
4 Classification .8
5 Safety requirements . 11
6 Test methods . 17
7 Test report . 22
Annex A (informative) Example of determining the moment of inertia J (looking from the driving
axis into a system) . 24
Bibliography . 26

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SIST EN 957-5:2009
EN 957-5:2009 (E)
Foreword
This document (EN 957-5:2009) has been prepared by Technical Committee CEN/TC 136 “Sports-
playground and other recreational 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 August 2009, and conflicting national standards shall be withdrawn at
the latest by August 2009.
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 957-5:1996.
EN 957, Stationary training equipment consists of the following parts:
 Part 1: General safety requirements and test methods
 Part 2: Strength training equipment, additional specific safety requirements and test methods
 Part 4: Strength training benches, additional specific safety requirements and test methods
 Part 5: Stationary exercise bicycles and upper body crank training equipment, additional specific safety
requirements and test methods
 Part 6: Treadmills, additional specific safety requirements and test methods
 Part 7: Rowing machines, additional specific safety requirements and test methods
 Part 8: Steppers, stairclimbers and climbers, additional specific safety requirements and test methods
 Part 9: Elliptical trainers, additional specific safety requirements and test methods
 Part 10: Exercise bicycles with a fixed wheel or without freewheel, additional specific safety requirements
and test methods
In relation to EN 957-5:1996 the following main amendments have been made:
a) Specification and definition changed;
b) Implementation of recumbent bikes and upper body ergometers, requirements and tests;
c) New requirements and tests regarding the seat and handlebar;
d) Implementation of requirements and tests for heart rate monitoring and heart rate control systems;
e) Changes requirements for constant power mode;
f) Additional requirements regarding manual and marking;
g) More detailed description of the existing requirements.
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SIST EN 957-5:2009
EN 957-5:2009 (E)
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
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SIST EN 957-5:2009
EN 957-5:2009 (E)
Introduction
This part of EN 957 concerns the safety of crank training equipment.
It amends and supplements EN 957-1. The requirements of this specific standard take priority over those in
the general standard.
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SIST EN 957-5:2009
EN 957-5:2009 (E)
1 Scope
This part of EN 957 specifies safety requirements for stationary exercise bicycles and upper body crank
training equipment in addition to the general safety requirements of EN 957-1.
This part of EN 957 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 EN 957-1.
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 EN 957-1.
This part of EN 957 is not applicable to roller stands as they cannot be made safe in a reasonable way.
2 Normative references
The following referenced documents are indispensable for the application 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 71-1, Safety of toys — Part 1: Mechanical and physical properties
EN 957-1:2005, Stationary training equipment — Part 1: General safety requirements and test methods
ISO 4210, Cycles — Safety requirements for bicycles
3 Terms and definitions
For the purposes of this document the terms and definitions given in EN 957-1 and the following apply.
3.1
pedal 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
NOTE Hereafter referred to as training equipment.
3.2
freewheel
gearing mechanism which is designed to disengage the flywheel from the pedal mechanism in one direction
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 is inserted
3.5
handlebar stem
connection between the frame and the handlebar provided to adjust the height of the handlebar
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SIST EN 957-5:2009
EN 957-5:2009 (E)
3.6
display
device that provides information to the user
3.7
load adjustment
device to change the level of resistance at the cranks of the training equipment
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
NOTE P = M · 2 · π · n/60
3.9
adjustable torque
allows the user to maintain a pre determined equipment resistance level.
NOTE The power is only dependent upon the pedalling revolutions per minute and the chosen resistance level
(M = F · L).
3.10
adjustable equipment
equipment in which the power can be changed through a torque and/or power adjusting device
3.11
non adjustable equipment
equipment in which the power can only be changed upon the pedalling revolutions per minute
3.12
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 The gear ratio is the rotational speed of the flywheel divided by the rotational speed of the relevant shaft
beginning by the crank shaft.
3.13
protective cover
cover provided to protect the user from inadvertent access to hazardous parts of the training equipment
NOTE Hazardous parts include moving parts, gear systems, hot surfaces, etc.
3.14
adjustable handlebar
handlebars which can be adjusted for different training positions
3.15
heart rate control mode
programme that allows the user to maintain training with a predetermined pulse level by adjusting the
resistance automatically
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SIST EN 957-5:2009
EN 957-5:2009 (E)
4 Classification
Clause 4 of EN 957-1:2005 applies.
NOTE Figures 1 to 3 are intended only to give examples and to illustrate the names of the components.

Key
 1 Handlebar 13 Foot
 2 Power display 14 Crank
 3 Hand grip 15 Flywheel
 4 Hand pulse 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 Displacement wheel 22 Handlebar adjustment device
11 Pedal 23 Heart rate belt
12 Power supply
Figure 1 — Example of pedal crank training equipment
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SIST EN 957-5:2009
EN 957-5:2009 (E)

Key
 1 Display console  7 Protective cover
 2 Seat back rest  8 Crank
 3 Seat  9 Pedal
 4 Seat handlebar 10 Pedal strap
 5 Seat adjustment 11 Front handlebar
 6 Frame 12 Heart rate hand sensor
Figure 2 — Example of recumbent training equipment
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SIST EN 957-5:2009
EN 957-5:2009 (E)

Key
1 Display console  7 Horizontal seat adjustment
2 Crank  8 Foot rest
3 Handle  9 Frame
4 Seat back rest 10 Flywheel
5 Seat 11 Protective cover
6 Vertical seat adjustment
Figure 3 — Example of upper body training equipment
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SIST EN 957-5:2009
EN 957-5:2009 (E)
5 Safety requirements
5.1 General
Depending on the design of the piece of training equipment the following requirements shall apply as
appropriate.
Unless stated otherwise a tolerance of ± 5 % applies.
5.2 External construction
5.2.1 Transmission elements and rotating parts
When tested in accordance with 6.3.1, the finger probe shall not become entrapped.
In addition, if the crank extends beyond the protective cover at any point during rotation, then the distance
between the crank and the protective cover shall not be less than 10 mm. Test in accordance with 6.1.1.
Transmission elements, fans and flywheels shall be protected, so that, when tested according to 6.3.2, the
test finger cannot be trapped or touch moving parts which have no smooth surface.
5.2.2 Temperature rise
When tested in accordance with 6.2, accessible parts of the equipment shall not have a temperature greater
than 65 °C.
5.3 Intrinsic loading
For classes S, H and I the training equipment shall be tested against permanent deformation with 2 times the
maximum body mass ± 5 % specified by the manufacturer or at least 2 000 N whichever is greater. After the
test in accordance with 6.4, the permanent deformation shall be not more than 3 %.
For class H the training equipment shall not break when tested with a load of 2,5 times the maximum body
mass ± 5 % specified by the manufacturer or at least 2 500 N whichever is greater. For classes S and I the
training equipment shall not break when tested with a load of 4 times the maximum body mass specified by
the manufacturer or at least 4 000 N whichever is greater.
During the test in accordance with 6.4 the training equipment shall not tip over.
The clamped seat pillar shall not slip by more than 5 mm into the seat tube during the test.
5.4 Seat pillar — Seat
5.4.1 Insertion depth
The seat pillar shall have a permanent mark indicating the minimum insertion depth of at least 1,5 times the
cross section reference dimension (e. g. diameter or longest diagonal use of a rectangular tube) into the seat
tube. The mark is not required if the minimum insertion depth is given by the design.
Test in accordance with 6.1.1 and 6.1.2.
5.4.2 Seat adjustment
Except for classes HB and HC the height adjustment system shall work without a tool. If the clamping
mechanism of the horizontal adjustment fails, the seat shall remain in a safe usable position.
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EN 957-5:2009 (E)
Test in accordance with 6.1.4.
5.4.3 Seat tilting
The seat shall be fixed to the seat pillar and, this in turn, in the seat tube, so that the seat does not tilt more
than 2° from its original position. The measurement of 2° is between the seat and the seat tube.
Test in accordance with 6.5.
5.5 Handlebar
5.5.1 Handlebar stem
The handlebar stem shall be adjustable or different grip positions shall be provided.
If the vertical height is adjustable, the handlebar stem shall have a permanent mark indicating the minimum
insertion depth of at least 1,5 times the cross section reference dimension (e. g. diameter or the longest
diagonal of a rectangular tube). The mark is not required if the minimum insertion depth is given by the design.
Test in accordance with 6.6.
5.5.2 Handlebars
Adjust the front handlebar to their most onerous position. Test the handlebar with a load of 0,3 times the
maximum body mass ± 5 % specified by the manufacturer or (300 ± 15) N whichever is greater for class H.
For classes S and I apply 0,3 times the maximum body mass ± 5 % specified by the manufacturer or
(450 ± 15) N whichever is greater.
After removal of the test load, the handlebar shall function according to the manufacturer's instructions, and
shall remain in its original position within 5° for adjustable handlebars and without permanent deformation of
the handlebar of more than 2° for fixed systems.
For recumbent bikes test the seat handlebars with a vertical load of 2,5 times the maximum body mass ± 5 %
specified by the manufacturer or at least 2 500 N whichever is greater for class H against breakage. For
classes S and I apply 2 times the maximum body mass specified by the manufacturer or at least 2 000 N
whichever is greater against permanent deformation of more than 2° for non adjustable and 5° for adjustable
seat handlebars and 4 times against breakage.
Test in accordance with 6.6.
5.6 Pedals
Pedals shall be in accordance with ISO 4210.
5.7 Stability
When tested in accordance with 6.8, the training equipment shall not fall over.
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SIST EN 957-5:2009
EN 957-5:2009 (E)
5.8 Additional requirements for recumbent training equipment, upper body and combined
machines
5.8.1 Combined machines
If the machine has upper and lower body rotational crank systems, there shall be a mechanism to disengage
either the upper or lower crank when only one crank is in use.
Inadvertent entrapment of the hands and the fingers shall be prevented.
Test in accordance with 6.1.4.
5.8.2 Seat back rest
The seat back rest shall withstand to a static force of:
 1 x the maximum body mass ± 5 % specified by the manufacturer or at least 1 000 N whichever is greater
for class H;
 1,5 x the maximum body mass ± 5 % specified by the manufacturer or at least 1 500 N whichever is
reater for classes S and I.
After releasing the force, no breakage or permanent deformation d (see Figure 4) of more than 10 % of
distance l (see Figure 4) measured at the height of the force application point horizontally at the back side of
the seat shall occur. After the test the seat adjustments shall work properly.
Test in accordance with 6.7.
5.9 Additional classified requirements
For adjustable systems, classes A, B and C shall fulfil the requirements in accordance with Table 1. For non
adjustable systems, classes A, B and C shall fulfil the requirements in accordance with Table 2.
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SIST EN 957-5:2009
EN 957-5:2009 (E)
Table 1 — Classified requirements for adjustable systems
Requirement Class A Class B Class C
Freewheel Yes Yes Yes
Test in accordance with 6.1.4. Unless the inertia
factor is less than
0,6 kgm²
Power Display Shall display power in watts Shall not display power in Shall not display
watts power in watts
Test in accordance with 6.1.2.
Adjustment by steps
Accuracy for the power display The accuracy of the power Not applicable Not applicable
display shall be within the
Test in accordance with 6.12.
tolerance of ± 10 % or ± 5 W
for values below 50 W.
Power or resistance adjustment Steps of 10 W or less at Repeatable resistance An adjustment
(60 ± 1) rpm. steps. system able to
Test in accordance with 6.1.4 for
change the
class A Between adjustments,
resistance is
returning to a given value,
required
Test in accordance with 6.14 for
shall not vary by more
class B.
than ± 25 %.
a
5 kgm² to 16 kgm² 1,3 kgm² to 16 kgm² Less than 16 kgm²
Inertia factor
Min. braking torque at max. setting 40 Nm (f
...