1、January 2012 Translation by DIN-Sprachendienst.English price group 16No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 65.060.70!$y+Y“1860854www.din.deDDIN EN 786Garden equipment Electrically powered walk-behind and hand-held lawn trimmers andlawn edge trimmers Mechanical safety (includes Amendment A2:2009)English translation of DIN EN 786:2012-01Gartengerte Elektrisch betriebene handgefhrte und handgehaltene Rase
3、ntrimmer undRasenkantentrimmer Mechanische Sicherheit (enthlt nderung A2:2009)Englische bersetzung von DIN EN 786:2012-01Matriel de jardinage Coupe gazon et coupe-bordures lectriques portatifs et conducteur pied Scurit mcanique (Amendement A2:2009 inclus)Traduction anglaise de DIN EN 786:2012-01Supe
4、rsedesDIN EN 786:2001-12 andDIN EN 786 Corrigendum1:2005-05www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 37 pages12.11 DIN EN 786:2012-01 2 A comma is used as the decimal marker. Start of application The start of application of this s
5、tandard is 1 January 2012. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry” (Secretariat: AFNOR, France), Working Group WG 7 “Garden equipment” (Secretariat: BSI, Unit
6、ed Kingdom). The responsible German body involved in its preparation was the Normenausschuss Eisen-, Blech- und Metall-waren (Hardware, Tinware and Metal Products Standards Committee), Working Committee NA 020-00-11-04 UA Rasentrimmer. Amendment of the European Machinery Directive has made it necess
7、ary to review the previously valid standard, EN 786:1997+A1:2001, in terms of the essential requirements of the new European Machinery Directive, 2006/42/EC. This standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 2006/42/EC
8、, which took effect on 29 December 2009, and which apply to electrically powered walk-behind and hand-held lawn trimmers and lawn edge trimmers that are either first placed on the market or commissioned within the EEA. This standard serves to facilitate proof of compliance with the essential require
9、ments of the directives. Amendments This standard differs from DIN EN 786:2001-12 and DIN EN 786 Corrigendum 1:2005-05 as follows: a) Subclause 5.1.1 relating to the instruction handbook has been updated; b) Subclause 5.2.1 has been brought in line with the “Machinery Directive”, Directive 2006/42/E
10、C; c) Annex ZA has been amended; d) a new Annex ZB has been included. Previous editions DIN 57730-2 ZP (VDE 0730 Part 2 ZP): 1980-07 DIN EN 786: 1996-07, 2001-12 DIN EN 786 Berichtigung 1: 2005-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 786:1996+A2 October 2009 ICS 65.060.70 Supersedes
11、EN 786:1996English Version Garden equipment - Electrically powered walk-behind and hand-held lawn trimmers and lawn edge trimmers - Mechanical safetyMatriel de jardinage - Coupe gazon et coupe-bordures lectriques portatifs et conducteur pied - Scurit mcanique Gartengerte - Elektrisch betriebene hand
12、gefhrte und handgehaltene Rasentrimmer und Rasenkantentrimmer - Mechanische Sicherheit This European Standard was approved by CEN on 20 April 1996 and includes Corrigendum 1 issued by CEN on 12 August 1996, Amendment 1 approved by CEN on 4 February 2001 and Amendment 2 approved by CEN on 10 August 2
13、009. 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
14、 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
15、 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,
16、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 786:1996+A2:2009: EEUROPEAN COM
17、MITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG EN 786:1996+A2:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 42 Normative references 43 Definitions 54 Safety requirements and/or measures 64.1 Handling 64.2 Protection of power driven transmission p
18、arts (other than the cutting means) .74.3 Guard attachment 74.4 Controls 74.5 Cutting means 74.6 Guarding of cutting means .84.7 Mechanical strength and rigidity 84.8 Vibration 124.9 Noise 135 Information for use . 145.1 Instruction handbook . 145.2 Marking 15Annex A (normative) List of hazards 17An
19、nex B (normative) Calculation of kinetic energy 21Annex C (informative) Acceptable symbols for machine marking 22Annex D (normative) !Vibration“ 23Annex E (normative) Noise test code Engineering method (grade 2) . 26Annex F (informative) #Example of a material and construction fulfilling the require
20、ments for an artificial surface$ . 31Annex ZA (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC$ 33Annex ZB (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC$ 34Bibliog
21、raphy . 35DIN EN 786:2012-01 EN 786:1996+A2:2009 (E) 3 Foreword This document (EN 786:1996+A2:2009) has been prepared by Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR. This European Standard shall be given the status o
22、f a national standard, either by publication of an identical text or by endorsement, at the latest by April 2010, and conflicting national standards shall be withdrawn at the latest by April 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of
23、patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard was approved by CEN on 20 April 1996 and includes Corrigendum 1 issued by CEN on 12 August 1996, Amendment 1 approved by CEN on 4 February 2001 and Amendment 2 approv
24、ed by CEN on 10 August 2009. This document supersedes EN 786:1996. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“ and # $. The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicat
25、ed by the tags . #This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral part
26、s of this document.$ The Annex A is normative and contains the “List of hazards“. 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, Denm
27、ark, 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. DIN EN 786:2012-01 EN 786:1996+A2:2009 (E) 4 Introduction The ext
28、ent to which hazards are covered is indicated in the scope of this standard. In addition machinery shall comply as appropriate with EN 292 for hazards which are not covered by this standard. The electrical safety aspects of lawn trimmers and lawn edge trimmers will be covered by a standard presently
29、 under development by CLC/TC 61F. Walk-behind machines with metal cutting elements or cutting elements with greater than 10 J kinetic energy will be covered by a standard presently under development by CEN/TC 144/WG 7. 1 Scope This European Standard specifies mechanical safety requirements and testi
30、ng for the design and construction of electrically powered walk-behind and hand-held lawn trimmers and lawn edge trimmers, with cutting element(s) of non-metallic filament line or freely pivoting non-metallic cutter(s) with a kinetic energy of not more that 10 J each, and used by a standing operator
31、 primarily for cutting grass. It describes methods for the elimination or reduction of hazards arising from their use. In addition, it specifies the type of information to be provided by the manufacturer on safe working practices. This standard is not applicable to: a) Scissor type or lawn trimmers
32、and lawn edge trimmers with cutting means other than those described above; b) Self-propelled lawn trimmers or lawn edge trimmers; c) Lawn trimmers or lawn edge trimmers which do not have a distance of at least 600 mm between the cutting means control and the cutting head. The electrical aspects of
33、electrically powered lawn trimmers and lawn edge trimmers are not covered by this standard. The list of significant hazards dealt with in this standard is given in annex A. Annex A also indicates the hazards which have not been dealt with. Environmental aspects have not been considered in this stand
34、ard. This European Standard applies primarily to machines which are manufactured after the date of issue of this standard. NOTE The method of calculating the kinetic energy for the purposes of this standard is given in annex B. 2 Normative references This European Standard incorporates by dated or u
35、ndated references, 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 w
36、hen incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. DIN EN 786:2012-01 EN 786:1996+A2:2009 (E) 5 EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology
37、EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications !EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts, general principles for design Part 2: Technical principles and specifications“ EN 294:1992, Safety of mac
38、hinery Safety distances to prevent danger zones being reached by the upper limbs !EN 836:1997, Garden equipment - Powered lawnmowers Safety EN 28662-1:1992, Hand-held portable power tools - Measurement of vibrations at the handle Part 1: General (ISO 8662-1:1988) EN ISO 354:1993, Acoustics Measureme
39、nt of sound absorption in a reverberation room (ISO 354:1985) EN ISO 3744:1995, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994) EN ISO 11201:1995, Acoustics - Noise emitted
40、 by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Engineering method in an essentially free field over a reflecting plane (ISO 11201:1995) EN ISO 11688-1:1998, Acoustics - Recommended practice for the design of low-noise
41、machinery and equipment Part 1: Planning (ISO/TR 11688-1:1995)“ ISO 3767-1:1991, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment Symbols for operator controls and other displays Part 1: Common symbols ISO 3767-3:1995, Tractors, machinery for agriculture and forest
42、ry, powered lawn and garden equipment Symbols for operator controls and other displays Part 3: Symbols for powered lawn and garden equipment 3 Definitions For the purposes of this standard the following definitions apply: 3.1 hand-held supported by hand, possibly assisted by wheel(s), skids or harne
43、ss, etc. 3.2 walk-behind ground supported, controlled by an operator walking behind 3.3 lawn trimmer grass trimming machine where the cutting means operates in a plane approximately parallel to the ground 3.4 lawn edge trimmer grass trimming machine where the cutting means operates in a plane approx
44、imately perpendicular to the ground DIN EN 786:2012-01 EN 786:1996+A2:2009 (E) 6 3.5 cutting means mechanism used to provide the cutting action in which one or more cutting elements, cutting by impact, rotate about an axis normal to the cutting plane 3.6 cutting element single non-metallic filament
45、line or freely pivoting non-metallic cutter 3.7 cutting head a support system for the cutting element 3.8 cutting means control a device activated by the operators hand or finger, for controlling the cutting means movement 4 Safety requirements and/or measures 4.1 Handling Hand-held lawn trimmers an
46、d lawn edge trimmers shall have at least one handle. All hand-held lawn trimmers and lawn edge trimmers with a mass of more than 3,5 kg shall have two handles and the distance between the centres of the two handles shall be at least 250 mm. NOTE This measurement of 250 mm does not apply to two handl
47、ed lawn trimmers with a mass of 3,5 kg or less. Additionally, hand-held law trimmers and lawn edge trimmers with a mass of more than 6 kg shall also have at least a single shoulder harness and those with a mass of more than 7,5 kg shall have a double shoulder harness. The mass of the machine shall b
48、e determined in its heaviest condition for normal use and without cable. The gripping length of any handle required by this standard shall be at least 100 mm. If a part containing the motor complies with the dimensions pertaining to handles it may be considered as a handle. The gripping length of a bail or closed handle shall comprise any length that is straight or curved at a radius of greater than 100 mm together with
