1、BSI Standards PublicationBS ISO 23205:2014Agricultural tractors Instructional seatBS ISO 23205:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 23205:2014. Itsupersedes BS ISO 23205:2006 which is withdrawn.The UK participation in its preparation was entrust
2、ed to TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correcta
3、pplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 82098 4ICS 65.060.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Com
4、mittee on 30 November 2014.Amendments issued since publicationDate Text affectedBS ISO 23205:2014 ISO 2014Agricultural tractors Instructional seatTracteurs agricoles Sige de convoyeurINTERNATIONAL STANDARDISO23205Second edition2014-12-15Reference numberISO 23205:2014(E)BS ISO 23205:2014ISO 23205:201
5、4(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an
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7、ished in SwitzerlandBS ISO 23205:2014ISO 23205:2014(E)Contents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Requirements 1 ISO 2014 All rights reserved iiiBS ISO 23205:2014ISO 23205:2014(E)ForewordISO (the International Organization for Standardization
8、) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards 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 repr
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11、/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 of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during
12、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 name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meanin
13、g of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 23, Tr
14、actors and machinery for agriculture and forestry, Subcommittee SC 4, Tractors.This second edition cancels and replaces the first edition (ISO 23205:2006), of which has been technically revised.iv ISO 2014 All rights reservedBS ISO 23205:2014ISO 23205:2014(E)IntroductionThis International Standard i
15、s intended to guide the manufacturer who wishes to supply an instructional seat and restraint inside the enclosed cab of an agricultural tractor. Nevertheless, many types of agricultural tractors will not be able to accommodate this feature.This International Standard is recognition that an instruct
16、ional seat for a trainer or trainee or service person on an agricultural tractor can be useful when providing training or instruction, or to enable a second person to aid in problem diagnosis.Agricultural tractors equipped with ROPS (rollover protective structure) cabs large enough to accommodate tw
17、o persons one seated in the operators seat with restraint and the other, a trainer, trainee or service person, seated in the instructional seat with restraint provide greater safety for both persons in a rollover than would be available without an instructional seat. ISO 2014 All rights reserved vBS
18、 ISO 23205:2014BS ISO 23205:2014Agricultural tractors Instructional seat1 ScopeThis International Standard specifies the minimum design and performance requirements for an instructional seat and restraint designed for limited use by a trainer or trainee or service person inside an enclosed cab of an
19、 agricultural tractor.The instructional seat is neither intended for, nor is it designed for use by, children.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edit
20、ion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3776-1, Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirementsISO 3776-2, Tractors and machinery for agriculture Seat belts Part 2: Ancho
21、rage strength requirementsISO 3776-3, Tractors and machinery for agriculture Seat belts Part 3: Requirements for assembliesISO 5353:1995, Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point3 Terms and definitionsFor the purposes of this document, the foll
22、owing terms and definitions apply.3.1instructional seatarea of sufficient size and shape, and having an integral or separate backrest, to allow a trainer, trainee or service person to be seated3.2enclosed caboperator enclosure, including glazing materials in the windows, door(s) and of the windshiel
23、d, mounted on the frame of an agricultural tractor4 Requirements4.1 The instructional seat shall only be fitted on agricultural tractors equipped with an enclosed cab.4.2 The instructional seat and surrounding clearance zone shall have envelope dimensions in accordance with Figure 1. The vertical cl
24、earance shall be of at least 830 mm above the seat index point. However, where a tractor satisfies the requirements relating to the drivers protection and seating, but its construction does not allow for such a vertical clearance for the passenger, the clearance may be reduced to 710 mm, provided th
25、at adequate padding, when deflected, that allows 830 mm vertical clearance immediately above the passenger seat at the level of the roof.4.3 The instructional seat shall be located as shown in Figure 1. The instructional seat shall be placed such that the trainer, trainee or service person seated in
26、 it has a minimal potential impact on operation INTERNATIONAL STANDARD ISO 23205:2014(E) ISO 2014 All rights reserved 1BS ISO 23205:2014ISO 23205:2014(E)and visibility, in keeping with intended use, and consistent with machine function and other design considerations.4.4 The instructional seat may o
27、r may not be padded or cushioned. Its backrest shall also have minimum dimensions according to Figure 1. A non-glazed component at the rear or side of the enclosed cab, or a cab wall, may be used as the backrest, provided the dimensional requirements are met. The backrest may or may not be padded or
28、 cushioned.4.5 At least one handgrip or handrail of a minimum length of 150 mm shall be provided in a conveniently located position for use by the trainer, trainee or service person while seated in the instructional seat.4.6 A suitable area shall be provided for the lower extremities of the trainer,
29、 trainee or service person seated in the instructional seat such that there is no interference with the operator.4.7 A restraint system shall be provided. The restraint system shall be in accordance with ISO 3776-1, ISO 3776-2 and ISO 3776-3 or other applicable standards.4.8 The instructional seat,
30、with the trainer, trainee or service person seated in it, shall be inside the enclosed cab structure.4.9 A safety sign indicating the required use of the seat belt shall be provided and positioned so as to be in view of the person seated in the instructional seat.4.10 The following information, at a
31、 minimum, shall be provided in the operators manual: appropriate use of the instructional seat, i.e. by a trainer, trainee or service person; inappropriate use of the instructional seat, i.e. by children or other passengers; requirements to wear the seat belt; hazards identified with instructional s
32、eat use, such as falling from the machine and obstruction of the operators view.2 ISO 2014 All rights reservedBS ISO 23205:2014ISO 23205:2014(E)2a31b13R3001752003500830R300110300700450R100Key1 seat index point (SIP)2 foot rest3 clearance zoneaFront view.bSide view.NOTE The SIP shall be determined in
33、 accordance with ISO 5353.Figure 1 Envelope and seat dimensions ISO 2014 All rights reserved 3BS ISO 23205:2014ISO 23205:2014(E) ISO 2014 All rights reservedICS 65.060.10Price based on 3 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and ot
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