ISO INTERNATIONAL STANDARD 5353 Second edition 1995-12-01 Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point Engins de terrassement, et tracteurs et matériels agricoles et forestiers-Point reperedu siege X ISO Reference number ISO 5353.1995(E) sewith ISC No reproduction or networking permited without license from IHS Not for Resale ISO 5353:1995(E) Foreword ISO (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 IsO 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 closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. circulated to the member bodies for voting. Publication as an International a vote. ISO/TC127， Earth-moving machinery, Subcommittee Sc 2, Safety re- quirementsandhumanfactors. This second edition canceisand replaces the first edition (ISO 5353:1978), of which it constitutes a technical revision. ISO1995 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfim, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 CH-1211 Geneve 20 · Switzerland Printed in Switzerland ational Organizatio n for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO5353:1995(E) INTERNATIONAL STANDARD ISO Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point 1 Scope 3Definitions This International Standard specifies a method and For the purposes of this International Standard, the the device for use in determining the position of the following definitions apply. seat index point (SIP) for any kind of seat designed for earth-moving machinery as defined in IsO 6165, and 3.1 seat index point; (SIP): Point on the central tractors and machinery for agriculture and forestry as verticalplaneoftheseatasdeterminedbythedevice defined in ISO 3339-0. shown in figure1, when installed in the seat as specified in 5.3. This provides a uniform method for defining the lo- cation of the SIP in relation to a fixing point on the NOTES seat.TheSiPmaybedeterminedonaseatbyitself 1 The SIP is fixed with respect to the machine and does or with the seat located in its operating environment not move with the seat through its adjustment and/or os- on the machine. The SiP is a characteristic of the seat; cillation range therefore, it may be specified by the seat manufac- turer. 2 The SIP as established and defined by this International Standard may be considered, for operator work-place design purposes,tobeequivalenttothe intersectiononthecentral vertical plane throughthe seat centreline of thetheoretical pivot axis between a human torso and thighs 3.2 fixing point: Point specified by the manufac- turer to which the SIP is referenced. 2 Normative references See figures 2 and 3 for examples. The following standards contain provisions which, throughreferenceinthistext,constituteprovisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards 4 Multiple machine function seats are subject to revision, and parties to agreements based on this International Standard are encouraged Some seats are designed to locate and fix an operator to investigate the possibility of applying the most re- to perform more than one function with a given ma- cent editions of the standards indicated below. chine.Whereasecondpositionoftheseatisprovided Members of IEC and ISO maintain registers of cur- because the ma