1、DEUTSCHE NORM March 1999 DIN EN IS0 5353 Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point (IS0 5353 : 1995) Enalish version of DIN EN IS0 5353 ICs 53.1 00; 65.060.01 Supersedes DIN EN 25353, January 1992 edition. Descriptors: Earth-moving machinery, ag
2、riculture, forestry, seat index point. Erdbaumaschinen sowie Traktoren und Maschinen fr Land- und Forstwirtschaft - Sitzindexpunkt (IS0 5353 : 1995) European Standard EN IS0 5353 : 1998 has the status of a DIN Standard. This standard includes safety requirements within the meaning of the EU Machiner
3、y Directive (89/392/EEC). National foreword This standard has been published in accordance with a decision taken by CEN/TC 151 to adopt, without alteration, International Standard IS0 5353 as a European Standard. The responsible German body involved in its preparation was the Normenausschu Maschinen
4、bau (Mechanical Engineering Standards Committee), Technical Committee frdbaumaschinen. DIN EN IS0 61 65*) is the standard corresponding to International Standard IS0 6165 referred to in clause 2 of the EN. Amendments DIN EN 25353, January 1992 edition, has been superseded by the specifications of EN
5、 IS0 5353. Previous editions DIN EN 25353: 1992-01 DIN IS0 5353: 1982-03. National Annex NA Standard referred to (and not included in Normative references) DIN EN IS0 6165 Earth-moving machinery - Basic types - Vocabulary*) *) At present at draft stage. EN comprises 8 pages. Q No pari of this standa
6、rd may be reproduced without the prior permission of Ref. No. DIN EN IS0 5353 : 1999-03 DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 06 Sales No. 1106 08.99 EUROPEAN STANDARD
7、 NORME EUROPENNE EUROPISCHE NORM EN IS0 5353 September 1998 ICs 53.1 00; 65.060 Supersedes EN 25353 : 1988. Descriptors: Earth-moving machinery, agriculture, forestry, seat index point. English version Earth-moving machinery, and tractors and machinery for agriculture and forestry (IS0 5353 : 1995)
8、Seat index point Engins de terrassement, et tracteurs et matriels agricoles et forestiers - Point repre du sige Erdbaumaschinen sowie Traktoren und Maschinen fr Land- und Forst- wirtschaft - Sitzindexpunkt (IS0 5353 : 1995) (IS0 5353 : 1995) This European Standard was approved by CEN on 1998-09-04.
9、CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the 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 stand- ards may be obtained on
10、application to the Central Secretariat or to any CEN member. The European Standards exist in 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 h
11、as the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. C
12、EN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1998. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 5353 : 1
13、998 E Page 2 EN IS0 5353 : 1998 Foreword International Standard IS0 5353 : 1995 Earth-moving machinery, and tractors and machinery for agriculture and forestry -Seat index point, which was prepared by ISO/TC 127 Earth-moving machinery of the International Organization for Standardi- zation, has been
14、 adopted by Technical Committee CEN/TC 151 Construction equipment and building material machines, the Secretariat of which is held by DIN, as a European Standard. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, an
15、d conflicting national standards withdrawn, by March 1999 at the latest. In accordance with the CENKENELEC Internal Regulations, the national standards organizations of the follow- ing countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland, Fr
16、ance, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Endorsement notice The text of the International Standard IS0 5353 : 1995 was approved by CEN as a European Standard without any modification. 1 Scope Pa
17、ge 3 EN IS0 5353 : 1998 3 Definitions This International 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 IS0 6165, and tractors and machinery for agriculture and forest
18、ry as defined in IS0 3339-0. This provides a uniform method for defining the lo- cation 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; t
19、herefore, it may be specified by the seat manufac- turer. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards are
20、subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 3339-
21、0: 1986, Tractors and machinery for agricul- ture and forestry - Classification and terminology - Part O: Classification system and classification. IS0 61 65: 1987, Earth-moving machinery - Basic types - Vocabulary. For the purposes of this International Standard, the following definitions apply. 3.
22、1 seat index point; (SIP): Point on the central vertical plane of the seat as determined by the device shown in figure 1, when installed in the seat as specified in 5.3. NOTES 1 The SIP is fixed with respect to the machine and does not move with the seat through its adjustment and/or os- cillation r
23、ange. 2 The SIP as established and defined by this International Standard 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 fix
24、ing point: Point specified by the manufac- turer to which the SIP is referenced. See figures 2 and 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 ma- chine. Where a second position of the seat is
25、provided because the machine or tractor has a second set of controls, 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 Inter- national Standards
26、 appropriate to the first location and set of controls and the second location of the SIP shall be used for those International Standards appropriate to the second location and set of controls. Page 4 EN IS0 5353 : 1998 5 Technical requirements 5.1 determination Device for seat index point (SIP) The
27、 device for determining the SIP shall comply with figurel. The mass of the device shall be 6 kg k 1 kg. The work surfaces of the device shall be of hardwood (sanded with 200 or finer grit paper or equivalent and polished) or equivalent material with the same performance to provide minimum friction w
28、ith the muslin cloth in 5.3.1. 5.2 Adjustments when determining the seat index point (SIP) When the relevant adjustments are a part of the seat and its suspension, the seat shall be adjusted ac- cording to the following sequential steps before de- termining the SIP. 5.2.1 Seat adjustment All fore, a
29、ft, vertical and angular adjustments shall be placed in their centre position. When no centre pos- ition is possible, 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 manu- facturers
30、instruction. If such instruction is not pro- vided, block the suspension system at the midpoint of its oscillation range. Non-adjustable suspension shall be blocked in the vertical position attained with the weighted device in place. 5.3 Seat index point (SIP) determination The SIP shall be determin
31、ed by using the device il- lustrated in figure1 and applying the following pro- cedures. 5.3.1 Seat preparation Allow sufficient time to ensure that the seat reaches a room temperature of 20 “C f 2 “C before starting the measurement Drocedure. Place the seat on a level surface. Seat a 75 kg -t 10 kg
32、 person in the seat twice for 1 min periods to flex the seat and back cushions. Al- low the seat to remain unloaded for a minimum period of 5 min before starting the measurement procedure. Cover the seat with a single layer of muslin cloth of sufficient size to prevent direct contact and minimize fr
33、iction between the cushion surfaces and the measurement device. Take care to prevent the cloth from influencing the positioning of the device. 5.3.2 Device placernent Place the SIP device, without additional masses, lat- erally central on the seat cushion pushing against the back cushion (see figure
34、2). Ensure that the device is laterally controlled and level on the seat. Add masses to bring the total mass of the device from 6 kg f 1 kg to 26 kg k 1 kg; the vertical force centre of the added masses shall be 40 mm in front of the SIP mark on the horizontal section of the device (see figure 1). T
35、o obtain a good fit between the seat cushion, the back cushion. and the SIP measuring device, alter- nately apply and release a horizontal rearward force of approximately 100 N 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
36、 device from 26 kg rt 1 kg to 65 kg f 1 kg such that the vertical force centre of the additional masses is 40 mm in front of the SIP mark on the horizontal section of the device (see figure 1 ) NOTE 3 A 75 kg operator approximates the 65 kg weighted device on the seat. Repeat the alternate loading a
37、nd releasing, and the rocking of the device, checking to make sure the de- vice is laterally central and level on the seat. 5.3.3 Measurement Make measurements on each side of the SIP meas- uring device at points an equal distance from the central vertical plane (see figure 2). Average the val- ues.
38、 Record within f 1 mm the coordinate dimen- sions of the SIP from the fixing point on the seat assembly (see figure31 that is defined by the manu- facturer. Some machines have seats which fulfil multiple func- tions, usually by rotating the seat. Functions may in- clude using machine equipment or op
39、erating the machine in travel mode. For these cases, it may not be possible readily to calculate the location of the dif- ferent SIPS relative to the fixing point. In these cases, repeat 5.2 and 5.3 for each of the positions. Page 5 EN IS0 5353 : 1998 5.4 Report c) a drawing or sketch of the seat as
40、sembly showing the coordinate dimensions between the fixing The test report shall include the following information: point and the SIP (see figure3 for an example); a) reference to this International Standard: d) description of the seat adjustment ranges avail- b) a full description of any test cond
41、itions or adjust- ments different from those specified in this Inter- national Standard; able relevant to 5.2. Page 6 EN IS0 5353 : 1998 Dimensions in millimetres 1 B-B Centrai vertical force F, = 100 N - lui- 130 4 450 14ot 160 A A-A 4 Wood Figure 1 - Seat index point device 2.-. Central vertical plane Page 7 EN IS0 5353 : 1998 Exarnpie of measuring ,?- point, side 1 A Figure 2 - Seat with SIP device Page 8 EN IS0 5353 : 1998 y Example Figure 3 - SIP location
