1、BS ISO 6531:2017 Machinery for forestry Portable chain-saws Vocabulary BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 6531:2017 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 6531:2017. It supersedes BS ISO 6531:2008
2、 which is withdrawn.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 o
3、f a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017 ISBN 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
4、 published under the authority of the Standards Policy and Strategy Committee on 31 March 2017. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 6531:2017 ISO 2017 Machinery for forestry Portable chain-saws Vocabulary Matriel forestier Scies chane portatives Vocabula
5、ire INTERNATIONAL STANDARD ISO 6531 Fourth edition 2017-02 Reference number ISO 6531:2017(E)BS ISO 6531:2017ISO 6531:2017(E)ii ISO 2017 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may
6、 be reproduced or utilized 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
7、requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 6531:2017ISO 6531:2017(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 Annex A (informative) C
8、hain-saw positions .10 Bibliography .11 ISO 2017 All rights reserved iii Contents PageBS ISO 6531:2017ISO 6531:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Sta
9、ndards is normally carried out through ISO 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
10、take part in the work. ISO collaborates 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
11、 particular the different approval criteria 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 elem
12、ents of this document may be the subject of 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 receive
13、d (see www .iso .org/ patents). Any trade name 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,
14、as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html. This document was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture an
15、d forestry, Subcommittee SC 17, Manually portable 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.
16、3 and 3.9.11 have been added.iv ISO 2017 All rights reservedBS ISO 6531:2017INTERNATIONAL ST ANDARD ISO 6531:2017(E) Machinery for forestry Portable chain-saws Vocabulary 1 Scope This document defines terms relating to the mechanical aspects of portable chain-saws, saw-chain and guide bars. The chai
17、n-saw positions are shown in Annex A. 2 Normative references There are no normative references in this document. 3 T erms a nd definiti ons For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the fo
18、llowing addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp 3.1 Work functions 3.1.1 felling separation of a standing tree from its root system 3.1.2 delimbing removal of branches from trees or parts of
19、 trees 3.1.3 bucking slashing cutting of felled or uprooted trees, or parts of trees, into lengths 3.1.4 splitting dividing of trees or parts of trees longitudinally into pieces 3.1.5 boring process 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 h
20、ole 3.1.6 kickback rapid upward and backward motion of the saw which can occur when 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) 3.1.7 pinch kickback r
21、apid pushback of the chain saw that can occur when the wood closes in and pinches the moving saw- chain (3.3.1) in the cut along the top of the guide bar (3.3.5) 3.1.8 pruning removal of live or dead branches, or of multiple leaders of shoots, from standing trees 3.2 Types of chain-saws 3.2.1 chain-
22、saw power-driven tool designed to cut wood with a saw-chain (3.3.1) and consisting of an integrated compact unit of handles, power source, guide bar (3.3.5) and saw-chain, designed to be supported with two hands 3.2.1.1 chain-saw for forest service chain-saw designed for forest work such as felling
23、(3.1.1), delimbing (3.1.2) and bucking (3.1.3) Note 1 to entry: See Figure 1. 3.2.1.2 chain-saw for tree service specialized chain-saw of limited mass, designed for use by a trained operator for pruning (3.1.8) and dismantling standing tree crowns Note 1 to entry: See Figure 2. Figure 1 Chain-saw fo
24、r forest service Figure 2 Chain-saw for tree service2 ISO 2017 All rights reservedBS ISO 6531:2017ISO 6531:2017(E) 3.3 Cutting equipment 3.3.1 saw-chain chain serving as a cutting tool, consisting of drive links, cutters and side links held together by rivets Note 1 to entry: See Figure 3 and Figure
25、 4. Figure 3 Part of saw-chain Key 1 guide bar rail 2 side-link 3 rivet 4 cutter 5 drive link 6 guide bar groove 7 guide bar 8 chain gauge Figure 4 Saw-chain and guide bar details 3.3.2 chain guides plates or guides fitted on one or both sides of the guide bar (3.3.5) where the saw-chain (3.3.1) ent
26、ers the groove, for assisting in guiding the saw-chain between the drive sprocket (3.3.3) and the guide bar 3.3.3 drive sprocket part 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
27、.1 rim sprocket drive sprocket (3.3.3) with rims on which the side and cutter links run 3.3.3.2 spur sprocket drive sprocket (3.3.3) in which the drive links run and the side and cutter links are supported 3.3.4 nose sprocket rotating part at the tip of the guide bar (3.3.5) which supports the saw-c
28、hain (3.3.1) around the tip 3.3.5 guide bar part that supports and guides the saw-chain (3.3.1) 3.3.6 chain pitch arithmetic mean of the distances between three adjacent rivets Note 1 to entry: See x in Figure 3. 3.3.7 cutting lengthapproximate length of cut a chain-saw will make with the chain tens
29、ion 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 to entry: See Figure 5. Key 1 cutting length Figure 5 Cutting length Saw with removable or no spiked bumper 3.3.8 cutting lengthdistance from the root (b
30、ase) 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 (3.4.3) with the chain tension adjuster (3.5.1) set at mid-position Note 1 to entry: See Figure 6.4 ISO 2017 All rights reservedBS ISO 6531:2017ISO 6531:
31、2017(E) Key 1 cutting length F i g u r e 6 C u t t i n g l e n g t h S a w w i t h f i x e d s p i k e d b u m p e r 3.4 Safety devices 3.4.1 chain brake device for stopping or locking the saw-chain (3.3.1), activated manually or non-manually when kickback (3.1.6) occurs 3.4.1.1 manually activated c
32、hain brake brake which is intended to be actuated by the hand of the operator 3.4.1.2 non-manually activated chain brake brake which is actuated irrespective of operator intervention when a kickback (3.1.6) occurs 3.4.2 chain brake lever device, usually the front hand-guard used to activate the chai
33、n brake (3.4.1) 3.4.2.1 front hand-guard structural 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 handle, and may also be the device used to activate the chain brake (3.4.1) 3.4.3 bar tip guar
34、d shield 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) 3.4.4 chain catcher device for restraining the saw-chain (3.3.1) if it breaks or comes off the guide bar (3
35、.3.5) 3.4.5 clutch cover protective 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) 3.4.6 rear hand-guard structural barrier at the bottom right side of the rear handle (3.7.2) of the chain-saw (3.2.1) for protecting the h
36、and from the saw-chain (3.3.1) if the saw-chain breaks or comes off the guide bar (3.3.5) 3.4.7 stop switch device which initiates the stopping of the power source 3.4.8 throttle trigger lockout device that prevents operation of the throttle trigger (3.5.8) without intentional manual intervention 3.
37、4.9 guide bar cover device covering the saw-chain (3.3.1) on the guide bar (3.3.5) during transportation or storage of the machine 3.5 Control system 3.5.1 chain tension adjuster device, often acting on the guide bar (3.3.5), for adjusting the saw-chain tension 3.5.2 choke device for enriching the f
38、uel/air mixture in the carburettor to aid starting 3.5.3 decompression valve device for lowering the compression in the cylinder to aid starting 3.5.4 manual oiler manually operated pump to deliver oil to the guide bar (3.3.5) and the saw-chain (3.3.1) 3.5.5 c h a i n o i l f l o w a d j u s t e r d
39、evice for adjusting the delivery of saw-chain oil to the guide bar (3.3.5) and the saw-chain (3.3.1) 3.5.6 primer device for supplying fuel to the pump of the carburettor to aid starting 3.5.7 throttle control latch device to temporarily set the throttle in a partially open position to aid in starti
40、ng 3.5.8 throttle trigger device, usually a lever, activated by the operators hand or finger, for controlling the engine speed and/or power 3.5.9 recoil starter device for starting the engine by pulling a rewind rope which automatically rewinds when released 3.5.10 electric starter device that rotat
41、es 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 setting 3.6.1 idle-speed adjuster device, normally a screw, acting on the throttle, for adjusting the idling speed (3.9.7) 3.6.2 low-sp
42、eed mixture adjuster device, normally a screw, for adjusting fuel delivery at idling speed (3.9.7) 3.6.3 high-speed mixture adjuster device, normally a screw, for adjusting fuel delivery at full throttle 3.7 Handles 3.7.1 front handle support handle located at, or toward the front of the chain-saw (
43、3.2.1), and intended to be gripped by the left hand 3.7.2 rear handle support handle located at, or toward the rear of the chain-saw (3.2.1), and intended to be gripped by the right hand 3.7.3 wrap around handle special type of front handle (3.7.1) allowing the chain-saw (3.2.1) to be used also in t
44、he right side up (RSU) position Note 1 to entry: See Annex A. 3.8 Exhaust system 3.8.1 exhaust system part(s) used to contain and direct gas from the cylinder exhaust port to the atmosphere, including all directly attached shields for hot surface contact prevention 3.8.1.1 mu f f l e r silencer devi
45、ce for reducing engine exhaust noise and directing the exhaust gases 3.8.1.2 spark arrester device through which the exhaust gases pass, intended to stop smouldering/burning particles 3.9 Miscellaneous 3.9.1 clutch device for connecting and disconnecting a driven member to and from a rotating source
46、 of power 3.9.2 felling sight mark 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) 3.9.3 heated handle handle equipped with a device which allows it to be heated, for example, by exhaust gases or electricity 3.9.
47、4 power head chain-saw (3.2.1) without the guide bar (3.3.5) and saw-chain (3.3.1) 3.9.5 spiked bumper device 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 log 3.9.6 attachment point suspension point located behind or within the
48、 rear handle (3.7.2), which allows for the attachment of a safety strap, carabiner or rope, as appropriate 3.9.7 idling speed engine speed at which the saw-chain (3.3.1) does not move Note 1 to entry: A range of idling speeds is normally identified by the chain-saw manufacturer and stated in the ins
49、truction handbook. 3.9.8 maximum power speed full-load speed engine speed at which maximum corrected brake power is obtained Note 1 to entry: The maximum power speed is obtained in accordance with ISO 7293 1 . 3.9.9 racing speed maximum engine speed achieved at full open throttle or the engine speed at 133 % of the maximum power speed (3.9.8), whichever is lesser 3.9.10 computed kickback angle CKA angle calculated by a mathematical simulation that describes the peak bar nose position when a handheld
