1、BS ISO 6531:2017Machinery for forestry Portable chain-saws VocabularyBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 6531:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 6531:2017. It supersedes BS ISO 6531:2008 whic
2、h is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AGE/29, Forestry machinery.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a cont
3、ract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 91743 1 ICS 01.040.65; 65.060.80 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published
4、under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 6531:2017 ISO 2017Machinery for forestry Portable chain-saws VocabularyMatriel forestier Scies chane portatives VocabulaireINTERNATIONA
5、L STANDARDISO6531Fourth edition2017-02Reference numberISO 6531:2017(E)BS ISO 6531:2017ISO 6531:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utiliz
6、ed 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 ISOs member body in the country of the requester.ISO copyright
7、officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 6531:2017ISO 6531:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 1Annex A (informative) Chain-saw positions .10Bibliography .
8、11 ISO 2017 All rights reserved iiiContents PageBS ISO 6531:2017ISO 6531:2017(E)ForewordISO (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 I
9、SO 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
10、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 criter
11、ia 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 o
12、f 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 n
13、ame used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence
14、to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 17, Manually portable
15、forest machinery.This fourth edition cancels and replaces the third edition (ISO 6531:2008), which has been technically revised, with the following main changes: terms and definitions 3.1.7, 3.3.1, 3.4.1.1, 3.5.7, 3.9.10, 3.9.10.1, 3.9.10.2, 3.9.10.3 and 3.9.11 have been added.iv ISO 2017 All rights
16、 reservedBS ISO 6531:2017INTERNATIONAL STANDARD ISO 6531:2017(E)Machinery for forestry Portable chain-saws Vocabulary1 ScopeThis document defines terms relating to the mechanical aspects of portable chain-saws, saw-chain and guide bars.The chain-saw positions are shown in Annex A.2 Normative referen
17、cesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www
18、 .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1 Work functions3.1.1fellingseparation of a standing tree from its root system3.1.2delimbingremoval of branches from trees or parts of trees3.1.3buckingslashingcutting of felled or uprooted trees, or parts
19、 of trees, into lengths3.1.4splittingdividing of trees or parts of trees longitudinally into pieces3.1.5boringprocess of cutting with the saw-chain (3.3.1) at the nose (tip) of the guide bar (3.3.5) in order to make a hole3.1.6kickbackrapid upward and backward motion of the saw which can occur when
20、the moving saw-chain (3.3.1) near the upper portion of the tip of the guide bar (3.3.5) contacts an object such as a log or branch ISO 2017 All rights reserved 1BS ISO 6531:2017ISO 6531:2017(E)3.1.7pinch kickbackrapid pushback of the chain saw that can occur when the wood closes in and pinches the m
21、oving saw-chain (3.3.1) in the cut along the top of the guide bar (3.3.5)3.1.8pruningremoval of live or dead branches, or of multiple leaders of shoots, from standing trees3.2 Types of chain-saws3.2.1chain-sawpower-driven tool designed to cut wood with a saw-chain (3.3.1) and consisting of an integr
22、ated compact unit of handles, power source, guide bar (3.3.5) and saw-chain, designed to be supported with two hands3.2.1.1chain-saw for forest servicechain-saw designed for forest work such as felling (3.1.1), delimbing (3.1.2) and bucking (3.1.3)Note 1 to entry: See Figure 1.3.2.1.2chain-saw for t
23、ree servicespecialized chain-saw of limited mass, designed for use by a trained operator for pruning (3.1.8) and dismantling standing tree crownsNote 1 to entry: See Figure 2.Figure 1 Chain-saw for forest serviceFigure 2 Chain-saw for tree service2 ISO 2017 All rights reservedBS ISO 6531:2017ISO 653
24、1:2017(E)3.3 Cutting equipment3.3.1saw-chainchain serving as a cutting tool, consisting of drive links, cutters and side links held together by rivetsNote 1 to entry: See Figure 3 and Figure 4.Figure 3 Part of saw-chainKey1 guide bar rail2 side-link3 rivet4 cutter5 drive link6 guide bar groove7 guid
25、e bar8 chain gaugeFigure 4 Saw-chain and guide bar details3.3.2chain guidesplates or guides fitted on one or both sides of the guide bar (3.3.5) where the saw-chain (3.3.1) enters the groove, for assisting in guiding the saw-chain between the drive sprocket (3.3.3) and the guide bar3.3.3drive sprock
26、etpart that transmits rotational motion from the chain-saw (3.2.1) power source to the saw-chain (3.3.1) ISO 2017 All rights reserved 3BS ISO 6531:2017ISO 6531:2017(E)3.3.3.1rim sprocketdrive sprocket (3.3.3) with rims on which the side and cutter links run3.3.3.2spur sprocketdrive sprocket (3.3.3)
27、in which the drive links run and the side and cutter links are supported3.3.4nose sprocketrotating part at the tip of the guide bar (3.3.5) which supports the saw-chain (3.3.1) around the tip3.3.5guide barpart that supports and guides the saw-chain (3.3.1)3.3.6chain pitcharithmetic mean of the dista
28、nces between three adjacent rivets Note 1 to entry: See x in Figure 3.3.3.7cutting lengthapproximate length of cut a chain-saw will make with the chain tension adjuster (3.5.1) set at mid-position.Note 1 to entry: The length is generally expressed in terms of the nearest whole unit of measure.Note 2
29、 to entry: See Figure 5.Key1 cutting lengthFigure 5 Cutting length Saw with removable or no spiked bumper3.3.8cutting lengthdistance from the root (base) of the spiked bumper, along the guide bar axis, to the outside edge of the cutter, or on, if applicable, the inside part of the bar tip guard (3.4
30、.3) with the chain tension adjuster (3.5.1) set at mid-positionNote 1 to entry: See Figure 6.4 ISO 2017 All rights reservedBS ISO 6531:2017ISO 6531:2017(E)Key1 cutting lengthFigure 6 Cutting length Saw with fixed spiked bumper3.4 Safety devices3.4.1chain brakedevice for stopping or locking the saw-c
31、hain (3.3.1), activated manually or non-manually when kickback (3.1.6) occurs3.4.1.1manually activated chain brakebrake which is intended to be actuated by the hand of the operator3.4.1.2non-manually activated chain brakebrake which is actuated irrespective of operator intervention when a kickback (
32、3.1.6) occurs3.4.2chain brake leverdevice, usually the front hand-guard used to activate the chain brake (3.4.1)3.4.2.1front hand-guardstructural barrier between the front handle (3.7.1) of the chain-saw (3.2.1) and the saw-chain (3.3.1) for protecting the hand from injury if the hand slips off the
33、handle, and may also be the device used to activate the chain brake (3.4.1)3.4.3bar tip guardshield that prevents contact with the saw-chain (3.3.1) at the tip of the guide bar (3.3.5), which may be removable and replaceable, for reducing the incidence of rotational kickback (3.1.6)3.4.4chain catche
34、rdevice for restraining the saw-chain (3.3.1) if it breaks or comes off the guide bar (3.3.5)3.4.5clutch coverprotective cover for the clutch (3.9.1) and/or the drive sprocket (3.3.3) ISO 2017 All rights reserved 5BS ISO 6531:2017ISO 6531:2017(E)3.4.6rear hand-guardstructural barrier at the bottom r
35、ight side of the rear handle (3.7.2) of the chain-saw (3.2.1) for protecting the hand from the saw-chain (3.3.1) if the saw-chain breaks or comes off the guide bar (3.3.5)3.4.7stop switchdevice which initiates the stopping of the power source3.4.8throttle trigger lockoutdevice that prevents operatio
36、n of the throttle trigger (3.5.8) without intentional manual intervention3.4.9guide bar coverdevice covering the saw-chain (3.3.1) on the guide bar (3.3.5) during transportation or storage of the machine3.5 Control system3.5.1chain tension adjusterdevice, often acting on the guide bar (3.3.5), for a
37、djusting the saw-chain tension3.5.2chokedevice for enriching the fuel/air mixture in the carburettor to aid starting3.5.3decompression valvedevice for lowering the compression in the cylinder to aid starting3.5.4manual oilermanually operated pump to deliver oil to the guide bar (3.3.5) and the saw-c
38、hain (3.3.1)3.5.5chain oil flow adjusterdevice for adjusting the delivery of saw-chain oil to the guide bar (3.3.5) and the saw-chain (3.3.1)3.5.6primerdevice for supplying fuel to the pump of the carburettor to aid starting3.5.7throttle control latchdevice to temporarily set the throttle in a parti
39、ally open position to aid in starting3.5.8throttle triggerdevice, usually a lever, activated by the operators hand or finger, for controlling the engine speed and/or power3.5.9recoil starterdevice for starting the engine by pulling a rewind rope which automatically rewinds when released3.5.10electri
40、c starterdevice that rotates the engine crank shaft using external power, such as battery or mains, for starting6 ISO 2017 All rights reservedBS ISO 6531:2017ISO 6531:2017(E)3.6 Carburettor setting3.6.1idle-speed adjusterdevice, normally a screw, acting on the throttle, for adjusting the idling spee
41、d (3.9.7)3.6.2low-speed mixture adjusterdevice, normally a screw, for adjusting fuel delivery at idling speed (3.9.7)3.6.3high-speed mixture adjusterdevice, normally a screw, for adjusting fuel delivery at full throttle3.7 Handles3.7.1front handlesupport handle located at, or toward the front of the
42、 chain-saw (3.2.1), and intended to be gripped by the left hand3.7.2rear handlesupport handle located at, or toward the rear of the chain-saw (3.2.1), and intended to be gripped by the right hand3.7.3wrap around handlespecial type of front handle (3.7.1) allowing the chain-saw (3.2.1) to be used als
43、o in the right side up (RSU) positionNote 1 to entry: See Annex A.3.8 Exhaust system3.8.1exhaust systempart(s) used to contain and direct gas from the cylinder exhaust port to the atmosphere, including all directly attached shields for hot surface contact prevention3.8.1.1mufflersilencerdevice for r
44、educing engine exhaust noise and directing the exhaust gases3.8.1.2spark arresterdevice through which the exhaust gases pass, intended to stop smouldering/burning particles3.9 Miscellaneous3.9.1clutchdevice for connecting and disconnecting a driven member to and from a rotating source of power3.9.2f
45、elling sightmark on the chain-saw (3.2.1) to aid felling of a tree in a desired direction ISO 2017 All rights reserved 7BS ISO 6531:2017ISO 6531:2017(E)3.9.3heated handlehandle equipped with a device which allows it to be heated, for example, by exhaust gases or electricity3.9.4power headchain-saw (
46、3.2.1) without the guide bar (3.3.5) and saw-chain (3.3.1)3.9.5spiked bumperdevice fitted in front of the mounting point of the guide bar (3.3.5) acting as a pivot when it is in contact with a tree or log3.9.6attachment pointsuspension point located behind or within the rear handle (3.7.2), which al
47、lows for the attachment of a safety strap, carabiner or rope, as appropriate3.9.7idling speedengine speed at which the saw-chain (3.3.1) does not moveNote 1 to entry: A range of idling speeds is normally identified by the chain-saw manufacturer and stated in the instruction handbook.3.9.8maximum pow
48、er speedfull-load speedengine speed at which maximum corrected brake power is obtainedNote 1 to entry: The maximum power speed is obtained in accordance with ISO 72931.3.9.9racing speedmaximum engine speed achieved at full open throttle or the engine speed at 133 % of the maximum power speed (3.9.8)
49、, whichever is lesser3.9.10computed kickback angleCKAangle calculated by a mathematical simulation that describes the peak bar nose position when a handheld chain-saw (3.2.1) is subjected under simulated conditions to a rotational kickback (3.1.6) impulseNote 1 to entry: See Figure 5.3.9.10.1computed kickback bar stopping angle with actuated chain brakeCKA wbcomputer-derived value that computes the resultant CKA with chain brake (3.4.1) engaged3.9.10.2computed kickback bar stopping angle without actuated ch
