【BS英国标准】BS EN 957-2-2003 固定式训练器材.力量训练器材的补充特殊安全要求和试验方法.doc

licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsibritish standardbs en957-2:2003stationary training equipment part 2: strength training equipment, additional specific safety requirements and test methodsthe european standard en 957-2:2003 has the status of abritish standardics 97.220.30 bs en 957-2:2003national forewordthis british standard is the official english language version ofen 957-2:2003. it supersedes bs en 957-2:1997 which is withdrawn.the uk participation in its preparation was entrusted to technical committeesw/136/4, stationary training equipment, which has the responsibility to:aid enquirers to understand the text;present to the responsible international/european committee any enquiries on the interpretation, or proposals for change, and keep the uk interests informed;monitor related international and european developments and promulgate them in the uk.a list of organizations represented on this committee can be obtained on request to its secretary.cross-referencesthe british standards which implement international or european publications referred to in this document may be found in the bsi catalogue under the section entitled “international standards correspondence index”, or by using the “search” facility of the bsi electronic catalogue or of british standards online.this publication does not purport to include all the necessary provisions of a contract. users are responsible for its correct application.compliance with a british standard does not of itself confer immunity from legal obligations.licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsithis british standard was published under the authority of the standards policy and strategy committee on 28july 2004 bsi 28 july 2004isbn 0 580 44160 1summary of pagesthis document comprises a front cover, an inside front cover, the en title page, pages 2 to 12, an inside back cover and a back cover.the bsi copyright notice displayed in this document indicates when the document was last issued.amd. no.datecommentsamendments issued since publicationeuropean standard norme europenneeuropische normen 957-2may 2003ics 97.220.30supersedes en 957-2:1996english versionstationary training equipment - part 2: strength training equipment, additional specific safety requirements and test methodsappareils dentranement fixes - partie 2: appareils dentranement de force, exigences techniques spcifiques de scurit et mthodes dessai supplmentairesstationre trainingsgerte - teil 2: kraft-trainingsgerte, zustzliche besondere sicherheitstechnische anforderungen und prfverfahrenthis european standard was approved by cen on 11 march 2003.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 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 management centre has the same status as the official versions.cen members are the national standards bodies of austria, belgium, czech republic, denmark, finland, france, germany, greece, hungary, iceland, ireland, italy, luxembourg, malta, netherlands, norway, portugal, slovak republic, spain, sweden, switzerland and united kingdom.european committee for standardization c o m i t eur o p en de nor m a l i s a ti on eur o p i s c h es kom i tee f r nor m u ng management centre: rue de stassart, 36 b-1050 brusselslicensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsi 2003 cenall rights of exploitation in any form and by any means reserved worldwide for cen national members.ref. no. en 957-2:2003 een 957-2:2003 (e)licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsicontentspageforeword .3introduction .41scope .42normative references .43terms and definitions.44classification.45safety requirements .46test methods.107additional instructions for use .118additional exercise instructions .1211licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsiforewordthis document (en 957-2:2003) 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 november 2003, and conflicting national standards shall be withdrawn at the latest by november 2003.this document will supersede en 957-2:1996. this standard consists of the following parts:part 1: general safety requirements and test methodspart 2: strength training equipment, additional specific safety requirements and test methodspart 4: strength training benches, additional specific safety requirements and test methodspart 5: pedal crank training equipment, additional specific safety requirements and test methodspart 6: tread mills, additional specific safety requirements and test methodspart 7: rowing machines, additional specific safety requirements and test methodspart 8: steppers, stair climbers and climbers, additional specific safety requirements and test methodspart 9: elliptical trainers, additional specific safety requirements and test methodspart 10: exercise bicycles with a fixed wheel or without freewheel, additional specific safety requirements and test methodsthis part of en 957 is an amalgamation of en 957-2 and pren 957-3. this part of en 957 should be read in conjunction with en 957-1.according to the cen/cenelec internal regulations, the national standards organizations of the following coun- tries are bound to implement this european standard: austria, belgium, czech republic, denmark, finland, france, germany, greece, hungary, iceland, ireland, italy, luxembourg, malta, netherlands, norway, portugal, slovakia, spain, sweden, switzerland and the united kingdom.licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsiintroductionthis part of this european standard concerns the safety of strength training equipment.it amends and supplements en 957-1. the requirements of this specific standard take priority over those in the general standard.1scopethis part of this european standard specifies additional safety requirements for strength training equipment in addition to the general safety requirements of en 957-1.this part of this european standard is applicable to stationary training equipment type strength training equipment with stack weight resistance or other means of resistance like weight disks, elastic cords, hydraulic, pneumatic and magnetic systems and springs (type 2) (hereinafter referred to as training equipment) with the classes s and h.any attachment provided with the training equipment for the performance of additional exercises are subject to the requirements of en 957-1.2normative referencesthis european standard incorporates by dated or undated reference, provisions from other publications. these normative references are cited at the appropriate places in the text, and the publications are listed hereafter. for dated references, subsequent amendments to or revisions of any of these publications apply to this european standard only when incorporated in it by amendment or revision. for undated references the latest edition of the publication referred to applies (including amendments).en 294, safety of machinery - safety distance to prevent danger zones being reached by the upper limbs.en 957-1:1996, stationary training equipment part 1: general safety requirements and test methods.3terms and definitionsfor the purposes of this european standard the terms and definitions given in en 957-1:1996 apply.4classificationclause 4 of en 957-1:1996 applies.5safety requirements5.1generaldepending on the design of the piece of training equipment the following requirements shall apply as appropriate.licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsi5.2loading5.2.1intrinsic loadingeach piece of equipment loaded with the users bodymass shall withstand a force ffor class h2,5 times the bodymass (100 kg) without breakage,for class s2 times the bodymass (100 kg) without permanent deformation.when tested according to 6.2, supports (e. g. load bearing surfaces) shall not be deformed by more than f = 1/100, cantilever supports (cantilever surfaces) by more than f = 1/150 and other dimensions by more than 1 %. the training equipment shall not break when a static load of 4 times the bodymass is applied.5.2.2extrinsic loadingclass hwhen tested according to 6.3 and loaded with the users bodymass and/or reaction forces or moments of the user, each piece of equipment shall withstand without breakage a load f according to equation (1):f(n) = gk (kg) + 1,5 g (kg) 2,5 9,81m/s(1)wheregis the maximum load in kilograms indicated by the manufacturer (see clause 10 of en 957-1:1996);gkis the force in kilograms determined by the proportional bodymass (100 kg);1,5is the dynamic coefficient;2,5is the safety coefficient.class swhen tested according to 6.3 and loaded with the users bodymass and/or reaction forces or moments of the user, each piece of equipment shall withstand a load f according to equation (2):f (n) = gk (kg) + 1,5 g (kg) 2 9,81m/s(2)wheregis the maximum load in kilograms indicated by the manufacturer (see clause 10 of en 957-1996). the torques as specified in table 1 are to be taken as basis for the calculation of g, if greater than the manufacturers stated maximum load;gkis the force in kilograms determined by the proportional bodymass (100 kg);1,5is the dynamic coefficient;2is the safety coefficient.licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsiafter the test, supports (load bearing surfaces) shall not be deformed by more than f = 1/100, cantilever supports (cantilever surfaces) by not more than f = 1/150and other dimensions by not more than 1 %.if greater than manufacturers maximum stated load, the equipment shall be capable of accepting a minimal torque load as specified in table 1, throughout the range of movement of each exercise for which the equipment is designed. the training equipment shall not break when a static load according to equation (2) with a safety coefficient of 4 is applied.5.3endurance loadwhen tested according to 6.4, the training equipment shall be capable of normal function.when the training equipment consists of two or more separate functional units, each shall withstand the endurance load test.when more than one function is tested, which involve use of common components e.g.: ropes, pulleys and bearings, these can be replaced before each separate test.5.4stacked weights5.4.1access to squeeze and/or shear pointsgeneralthe uncontrolled access by third parties to squeeze and/or shear points of stacked weights shall be prevented. weights that can only be lifted as a whole block shall not come closer than 60 mm during movement to any part ofthe equipment or the ground.class hthis can be achieved by either:a)surrounding by a casing in conformance with en 294 with the exception of a maximum 75 mm wide gap for setting of the weights; orb)by locking the machine to prevent moving of the stacked weights when the equipment is not in use and by utilizing the training area to deny access to third parties see 3.2 and clause 9 c) of en 957-1:19.3class s.1encasingwhere stacked weights are behind the user in the normal exercise position as described in the users manual (see figure 1, vertical plane ab) they shall be encased on all sides except one side where a gap of 75 mm max. is allowed for selection of the weights. stacked weights that are encased shall fulfill the following requirement: up to 1 800 mm the encasing shall be at least 60 mm higher than the upper edge of the block of weights in its highest position.key1head, chest or back supportdimensions in millimetreslicensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsifigure 1 weight stack behind the userwhere the whole of the stacked weights are at the side of the user and in front of ab (see figure 2) they shall be encased on the 3 sides furthest from the user. test in accordance with 6.1.1. selection of the weights shall be from the open side.if any part of the weight stack projects behind ab (see figure 3) it shall be encased on all sides. ab is the line drawn laterally from the head, chest or back support in its most onerous position. if there is no support the line is drawn laterally from the most onerous user position.key1head, chest or back supportfigure 2 weight stack in front of ablicensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsikey1head, chest or back supportfigure 3 weight stack behind abmultiweight stack machines do not require guarding on the 3 sides furthest from the user provided there is a framework on these sides which prevents uncontrolled access by third parties. on the side adjacent to the user the requirements apply as in ..2no encasingwhere the stacked weights are always in front of the user and visible throughout the exercise without any important obstruction (see figure 4), weights need not be encased.noteencasing is not necessary because the negative forces exceed the positive forces and thus the user can always interrupt the movement of the stacked weights if a third party unintentionally enters the area of the stacked weights.keyafield of vision1head, chest or back supportfigure 4 weight stack in front of the user5.5weight disksthe maximum load ability of each weight support shall be indicated on the machine. locking mechanisms shall be provided according to 5.4 of en 957-1:1996 which prevent weight disks from falling off. methods of attachment or loading of other forms of resistance (e.g. elastic cords, springs) shall comply with 5.4 of en 957-1:1996. test in accordance with 6.1.2 and 6.1.4.licensed copy: london south bank university, london south bank university, sun mar 19 03:03:20 gmt 2006, uncontrolled copy, (c) bsi5.6minimum achievable training loadsmachines which perform following biomechanical functions should meet the minimum torque values shown intable 1.test in accordance with 6.1.4.table 1 mean torque values for single-joint movementelbow flexion170 n m (b)elbow extension170 n