EN 14344:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Izdelki za otroke –Otroški sedeži za kolesa –Varnostne zahteve in preskusne metodeArtikel für Säuglinge und Kleinkinder - Kindersitze für Fahrräder - Sicherheitstechnische Anforderungen und PrüfverfahrenArticle de puériculture - Sieges enfants pour bicyclettes - Exigences de sécurité et méthodes d'essaiChild use and care articles - Child seats for cycles - Safety requirements and test methods97.190Otroška opremaEquipment for children43.150KolesaCyclesICS:Ta slovenski standard je istoveten z:EN 14344:2004SIST EN 14344:2005en,fr,de01-januar-2005SIST EN 14344:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14344August 2004ICS 97.190English versionChild use and care articles - Child seats for cycles - Safetyrequirements and test methodsArticle de puériculture - Sièges enfants pour bicyclettes -Exigences de sécurité et méthodes d'essaiArtikel für Säuglinge und Kleinkinder - Kindersitze fürFahrräder - Sicherheitstechnische Anforderungen undPrüfverfahrenThis European Standard was approved by CEN on 2 February 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14344:2004: ESIST EN 14344:2005

Seat measuring instrument.32 Annex B (normative)
Test bags.35 Annex C (informative)
Rationale.36
- Part 3: Assessment of degree of rusting. ISO 9227, Corrosion tests in artificial atmospheres – Salt spray tests. ISO 11243, Cycles – Luggage carriers for bicycles – Concepts, classification and testing. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 seat child seat intended to be mounted on a cycle 3.2 front seat child seat intended to be mounted on a cycle in front of the rider (between handlebar and rider) 3.3 rear seat child seat intended to be mounted on a cycle behind the rider 3.4 reclining seat front or rear seat that can transport a child either in an upright or in a reclined sitting position SIST EN 14344:2005

Key 1 handlebar 2 extension 3 quill Figure 1 — Handlebar and handlebar stem assembly 3.13 restraint system device designed to keep the child sitting in a safe position in the seat 3.14 crotch restraint device designed to pass between the child’s legs to prevent the child from sliding forward 4 Classification Seats are classified according to the weight of the child carried and their mounting position on the cycle (see Table 1). SIST EN 14344:2005

Figure 2 — Examples for minimum radii of edges and corners 6.3 Entrapment There shall be no gaps in the accessibility zone of the assembled seat between 5 mm and 12 mm. The accessibility zone includes any part that is visible when looking at the product from the outside. Excluded from this requirement is an area of 200 mm width from the front of the seat going to the back of the seat to the height of the reference plane. Padding, restraint system and buckles are excluded. 6.4 Small parts 6.4.1 Requirements for detachable and non-detachable components In order to avoid ingestion or inhalation of small parts, components shall conform to the following requirements : a) detachable components shall not, whatever orientation and without compressing, fit entirely within the cylinder according to Figure 3 ; b) non-detachable components, i.e. those parts which are not intended to be removed, shall conform to one of the following requirements : 1) the components shall be so embedded that the child cannot grip them with its teeth or fingers ; or 2) the components shall be so fixed to the product that they cannot become detached when a tensile test is carried out in accordance with EN 71-1:1998, 8.4.2.1, with the apparatus described in EN 71-1:1998, 8.4.1
and a torque test is carried out in accordance with Clause 6.4.3; or 3) any components that become detached when the tensile test is carried out shall comply with the requirement for detachable components. SIST EN 14344:2005

Figure 3 — Small parts cylinder 6.4.3 Torque test for non-detachable components Apply a torque gradually to the component within a period of 5 s in a clockwise direction until either : a) a rotation of 180° from the original position has been attained ; or b) a torque of 0,34 Nm is reached. The maximum rotation or required torque shall be applied for 10 s. The component shall then be allowed to return to a relaxed condition and the procedure repeated in an anticlockwise direction. Where projections, components or assemblies are rigidly mounted on an accessible rod or shaft designed to rotate together with the projections, components or assemblies, during the test the rod or shaft shall be clamped to prevent rotation. If a component which is attached by a screw thread that becomes loosened during application of the required torque, the torque shall continue to be applied until the required torque is exceeded or the component disassembles or it becomes apparent that the component will not disassemble. When using clamps and test equipment care shall be taken not to damage the attachment mechanism or body of the component. Check whether any component or part of a component that is removed during the test fits wholly within the small parts cylinder specified in Figure 3. SIST EN 14344:2005

Figure 4 — Feeler gauge 6.5.3 Test method for decals The following tests shall be conducted at a temperature of (20 ± 5) °C. 6.5.3.1 Soaking test Submerge the plastic decal or plastic sheeting to be tested completely in a container of demineralised water at a temperature of (20 ± 5)°C for 4 min. Remove the plastic decal or plastic sheeting from the demineralised water, allowing any excess water to run off. Maintain the plastic decal or plastic sheeting at room temperature for 10 min. Then repeat the test a further three times so that the component is submerged a total of four times. 6.5.3.2 Adhesion test Using a force of (25 ± 2) N insert the feeler gauge between the plastic decal or plastic sheeting and the underlying layer of the product at any angle between 0° and 10° from the surface. Repeat this for a further 29 times so that the feeler gauge is pushed between the plastic decal or plastic sheeting and the product for a total of 30 times. The feeler gauge shall be pushed between the plastic decal or plastic sheeting and the product at the same position each time. SIST EN 14344:2005

Figure 5 — Loading pad 7.3.2 Vibration apparatus Mount the fixture on an apparatus, which is capable of providing the motion described in 7.4.4 and/or 7.4.5. Load the seat and its footrests with test bags, as described in Annex B, arranged according to Figure 6, to represent the weight of a child. Secure these test bags with the straps provided with the seat. Additional straps, belts and/or adhesive tape, padding material, all of negligible weight as may be used to prevent excess free movement of the test bags during the tests. NOTE If the natural vibration frequency of the seat corresponds to either of the frequencies imposed during the tests in 7.4.4 and 7.4.5, so that resonance occurs, the frequency can be reduced by 10 % and the amplitude increased by 23 %. SIST EN 14344:2005

Key 1 Reference plane 2a Distance below reference plane to lateral swing axis 2b Distance below carrier platform to the lateral swing axis 3 Height of the measuring points above the reference plane 4 Measuring points Figure 6 — Vibration apparatus 7.3.3 Limiting device Examples of limiting devices are a micro-switch or infrared sensor to detect excess movement of the seat during the transverse rigidity test. 7.4 Test methodology for strength and durability For the testing of strength and durability all seats shall be subjected to 7.4.1 high temperature test, 7.4.2 low temperature test and low temperature drop test, 7.4.3 footrest strength test, 7.4.4 fatigue test, 7.4.5 transverse rigidity test, 7.4.6 backrest dynamic test : 7.4.1 High temperature test Store the seat for
(4 ± 1) h in a chamber at a temperature of (65 ± 5) °C. Remove the seat from the chamber. 7.4.2 Low temperature test and low temperature drop test Store the seat for (4 ± 1) h in a chamber at a temperature of (− 20 ± 1) °C. Remove the seat from the chamber and within 15 s drop the seat from a height of 1 m onto a smooth, level, concrete floor. Drop the seat in such a way that the side hits the floor. SIST EN 14344:2005

Key 1 Reference plane Figure 7 — Backrest dynamic tests 8 Attachment of the seat to the cycle 8.1 General requirements for all seats To avoid inadvertent release of the seat from the cycle the locking or attachment mechanism shall require : a) the use of a tool (e.g. spanner or screwdriver) for at least one of the locking or attachment mechanism ; or b) two independent locking mechanisms that are operated simultaneously ; or c) two or more automatically engaging locking mechanisms that cannot be simultaneously released by one unintentional action ; or d) two consecutive actions, the first of which must be maintained while the second is carried out. SIST EN 14344:2005

Figure 8 — Test dummy 9.2.3 Test method for effectiveness of restraint system, roll-over test Initially place the test dummy centrally on the seat unit with the 225 mm axis against the backrest and attach the restraint system in accordance with the manufacturer’s instructions. Fasten any waist restraints around the torso section of the test dummy so that any slackness is removed and the waist is positioned above the leg stumps. If the crotch restraint is adjustable, adjust it so that any slackness is removed. Where shoulder straps are fitted, place a 30 mm cuboid spacer block, made of a hard smooth material, on each shoulder of the test dummy. Adjust each shoulder strap so that any slackness is removed. Remove the spacers. A means of rotation is used to rotate the product smoothly through 360° at a speed of (4 ± 0,5) RPM in a forward and reverse direction. Rotate the seat through 360° in a forward direction. If necessary reposition the test dummy to its initial position without altering the adjusters on the restraint system. Rotate the seat through 360° in the reverse direction. If necessary reposition the test dummy to its initial position without altering the adjusters on the restraint system. Repeat the forward and reverse rotation cycles for two more sequences, giving a total of 3 forward and 3 reverse rotations. If necessary, after each rotation, reposition the test dummy to its initial position without altering the adjusters to the restraint system. SIST EN 14344:2005

Figure 9 — Micro-slip test The adjusting device shall be placed on a vertical piece of strap one end of which bears a 5 kg load (guided in a manner which prevents the load from swinging and the strap from twisting). The free end of the strap from the adjusting device shall be mounted vertically upwards or downwards as it is on the seat. The other end shall pass over a deflector roller with its horizontal axis parallel to the plane of the section of the strap supporting the load, the section passing over the roller being horizontal. The device being tested shall be arranged in such a way that its centre, in the highest position to which it can be raised, is (300 ± 5) mm from a support table and the load of 5 kg shall be 100 mm from that support table. Twenty pre-test cycles shall be completed and 1 000 cycles shall be completed at a frequency of 0,5 Hz, the total amplitude being (300 ± 20). Where there is insufficient strap to provide this amplitude, the test may be applied over a shorter length subject to a minimum of 200 mm. The 5 kg load shall be applied only during the time corresponding to a shift of (100 ± 20) mm for each half period. Micro-slip shall be
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