1、BRITISH STANDARD BS EN ISO 5353:1999 BS6912-27: 1999 Incorporating Corrigendum No.1 Earth-moving machinery, and tractors and machinery for agriculture and forestry Seatindexpoint The European Standard EN ISO5353:1998 has the status of a British Standard ICS53.100; 65.060.01BSENISO5353:1999 This Brit
2、ish Standard, having been prepared under the directionof the Sector Committeefor Building and CivilEngineering, was publishedunderthe authority ofthe Standards Committee and comesintoeffecton 15 January1999 BSI05-1999 ISBN 0 580 30570 8 National foreword This British Standard is the English language
3、 version of EN ISO5353:1998. Itis identical with ISO5353:1995. It supersedes BS5631:1978 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee B/513, Construction equipment and plant, and site safety, to Subcommittee B/513/1, Earth-moving machinery (Interna
4、tional), which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and pr
5、omulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with
6、their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards El
7、ectronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This
8、 document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, page2, the ISO title page, page ii, pages1 to5 and abackcover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table o
9、n the inside front cover. Amendments issued since publication Amd. No. Date Comments 10427 Corrigendum February 1999 Front coverBSENISO5353:1999 BSI 05-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword ii Text of ISO 5353 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPIS
10、CHE NORM EN ISO5353 September1998 ICS53.100; 65.060 Supersedes EN25353:1988 Descriptors: See ISO document English version Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point (ISO5353:1995) Engins de terrassement, et tracteurs et matriels agricoles et fore
11、stiers Point repre du sige (ISO5353:1995) Erdbaumaschinen sowie Traktoren und Maschinen fr Land- und Forstwirtschaft Sitzindexpunkt (ISO5353:1995) This European Standard was approved by CEN on4 September1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
12、he 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 on application to the Central Secretariat or to any CEN member. This European Standard exists i
13、n 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies
14、of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung C
15、entral Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO5353:1998 EENISO5353:1998 BSI 05-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC
16、127 “Earth moving machinery” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC151 “Construction equipment and building material machines Safety”, the secretariat of which is held by DIN. This European Standard replac
17、es EN25353:1988. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March1999, and conflicting national standards shall be withdrawn at the latest by March1999. According to the CEN/CENELEC Internal
18、Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and t
19、heUnitedKingdom. Endorsement notice The text of the International Standard ISO5353:1995 has been approved by CEN as a European Standard without any modification. Contents Page Foreword 2 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Multiple machine function seats 1 5 Technical requirements 1
20、 Figure 1 Seat index point device 3 Figure 2 Seat with SIP device 4 Figure 3 SIP location 5ENISO5353:1998 ii BSI05-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International St
21、andards 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
22、 take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internatio
23、nal Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO5353 was prepared by Technical Committee ISO/TC127, Earth-moving machinery, Subcommittee SC2, Safety requirements and human factors. This second edition cancels and replaces the first edition
24、 (ISO5353:1978), of which it constitutes a technical revision. Descriptors: Earth-moving equipment, agricultural machinery, agricultural tractors, forest equipment, seats, ground vehicle seats, operator seats, tests, determination, seat index point.ENISO5353:1998 BSI 05-1999 1 1 Scope This Internati
25、onal Standard specifies a method and the device for use in determining the position of the seat index point (SIP) for any kind of seat designed for earth-moving machinery as defined in ISO6165, and tractors and machinery for agriculture and forestry as defined in ISO3339-0. This provides a uniform m
26、ethod for defining the location of the SIP in relation to a fixing point on the seat. The SIP may be determined on a seat by itself or with the seat located in its operating environment on the machine. The SIP is a characteristic of the seat; therefore, it may be specified by the seat manufacturer.
27、2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this
28、 International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO3339-0:1986, Tractors and machinery for agriculture and forestry Class
29、ification and terminology Part0: Classification system and classification. ISO6165:1987, Earth-moving machinery Basic types Vocabulary. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 seat index point; (SIP) point on the central vertical plane of t
30、he seat as determined by the device shown in Figure 1, when installed in the seat as specified in5.3 NOTE 1The SIP is fixed with respect to the machine and does not move with the seat through its adjustment and/or oscillation range. NOTE 2The SIP as established and defined by this International Stan
31、dard may be considered, for operator work-place design purposes, to be equivalent to the intersection on the central vertical plane through the seat centreline of the theoretical pivot axis between a human torso and thighs. 3.2 fixing point point specified by the manufacturer to which the SIP is ref
32、erenced see Figure 2 and Figure 3 for examples 4 Multiple machine function seats Some seats are designed to locate and fix an operator to perform more than one function with a given machine. Where a second position of the seat is provided because the machine or tractor has a second set of controls,
33、the SIP of the seat has two locations relative to the machine or tractor, one for each position, as if there were two seats in the machine or tractor. The first location of the SIP shall be used for those International Standards appropriate to the first location and set of controls and the second lo
34、cation of the SIP shall be used for those International Standards appropriate to the second location and set of controls. 5 Technical requirements 5.1 Device for seat index point (SIP) determination The device for determining the SIP shall comply with Figure 1. The mass of the device shall be6kg 1kg
35、. The work surfaces of the device shall be of hardwood (sanded with200 or finer grit paper or equivalent and polished) or equivalent material with the same performance to provide minimum friction with the muslin cloth in5.3.1. 5.2 Adjustments when determining the seat index point (SIP) When the rele
36、vant adjustments are a part of the seat and its suspension, the seat shall be adjusted according to the following sequential steps before determining the SIP. 5.2.1 Seat adjustment All fore, aft, vertical and angular adjustments shall be placed in their centre position. When no centre position is po
37、ssible, the nearest adjustment that will move the SIP device upward or rearward of centre shall be used. 5.2.2 Suspension system Block the suspension system according to the manufacturers instruction. If such instruction is not provided, block the suspension system at the midpoint of its oscillation
38、 range. Non-adjustable suspension shall be blocked in the vertical position attained with the weighted device in place.ENISO5353:1998 2 BSI 05-1999 5.3 Seat index point (SIP) determination The SIP shall be determined by using the device illustrated in Figure 1 and applying the following procedures.
39、5.3.1 Seat preparation Allow sufficient time to ensure that the seat reaches a room temperature of20C 2 C before starting the measurement procedure. Place the seat on a level surface. Seat a75kg 10kg person in the seat twice for1min periods to flex the seat and back cushions. Allow the seat to remai
40、n unloaded for a minimum period of5min before starting the measurement procedure. Cover the seat with a single layer of muslin cloth of sufficient size to prevent direct contact and minimize friction between the cushion surfaces and the measurement device. Take care to prevent the cloth from influen
41、cing the positioning of the device. 5.3.2 Device placement Place the SIP device, without additional masses, laterally central on the seat cushion pushing against the back cushion (see Figure 2). Ensure that the device is laterally controlled and level on the seat. Add masses to bring the total mass
42、of the device from6kg1kg to26kg 1kg; the vertical force centre of the added masses shall be40mm in front of the SIP mark on the horizontal section of the device (see Figure 1). To obtain a good fit between the seat cushion, the back cushion, and the SIP measuring device, alternately apply and releas
43、e a horizontal rearward force of approximately100N at the location noted in Figure 1, and rock the device from side to side. Add further masses to bring the total mass of the device from26kg 1kg to65kg 1kg such that the vertical force centre of the additional masses is40mm in front of the SIP mark o
44、n the horizontal section of the device (see Figure 1). NOTE 3A75kg operator approximates the65kg weighted device on the seat. Repeat the alternate loading and releasing, and the rocking of the device, checking to make sure the device is laterally central and level on the seat. 5.3.3 Measurement Make
45、 measurements on each side of the SIP measuring device at points an equal distance from the central vertical plane (see Figure 2). Average the values. Record within1mm the coordinate dimensions of the SIP from the fixing point on the seat assembly (see Figure 3) that is defined by the manufacturer.
46、Some machines have seats which fulfil multiple functions, usually by rotating the seat. Functions may include using machine equipment or operating the machine in travel mode. For these cases, it may not be possible readily to calculate the location of the different SIPs relative to the fixing point.
47、 In these cases, repeat5.2 and5.3 for each of the positions. 5.4 Report The test report shall include the following information: a) reference to this International Standard; b) a full description of any test conditions or adjustments different from those specified in this International Standard; c)
48、a drawing or sketch of the seat assembly showing the coordinate dimensions between the fixing point and the SIP (see Figure 3 for an example); d) description of the seat adjustment ranges available relevant to5.2.ENISO5353:1998 BSI 05-1999 3 Figure 1 Seat index point deviceENISO5353:1998 4 BSI 05-19
49、99 Figure 2 Seat with SIP deviceENISO5353:1998 BSI 05-1999 5 Figure 3 SIP locationBSENISO 5353:1999 BS6912-27: 1999 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest ame
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