BS EN ISO 3411:2000 pdf – Earth-moving machinery Ð Human physical dimensions of operators and minimum operator space envelope

BS EN ISO 3411:2000 pdf – Earth-moving machinery Ð Human physical dimensions of operators and minimum operator space envelope.
1 Scope This International Standard defines the dimensions of male operators of earth-moving machinery and speci- fies the minimum normal operating space envelope around the operator enclosures (cabs, ROPS, FOPS) generally applicable to earth-moving machinery. It applies to earth-moving machines as defined in ISO 6165. 2Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publica- tion, the editions indicated were valid. All standards are 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 ISO maintain registers of cur- rently valid International Standards. Iso 5353:1995, Earth-moving machinery, and tractors and machinery for agriculture and forestry – Seat index point. Iso 6165:1987，Earth-moving machinery- Basic types – Vocabulary.
ISo 6682:1986, Earth-moving machinery – Zones of comfort and reach for controls. ISO 6682:1986/Amd.1:1989, Amendment 1. 3 Definitions For the purposes of this International Standard, the following definitions apply (see figure 1). 3.1 small operator: Operator where only 5 % of the worldwide earth-moving machinery operator popu- lation is smaller than the dimensions given. 3.2 medium operator: Operator where 50 % of the worldwide earth-moving machinery operator popu- lation is smaller and larger than the dimensions given. 3.3 large operator: Operator where only5 % of the worldwide earth-moving machinery operator popu- lation is larger than the dimensions given. 4 Physical dimensions of operators 4.1 General The physical dimensions of small, medium and large operators are given in figures 2 and 3 for standing and sitting operators respectively. The body pivot dimen- sions for small, medium and large operators are given in figure 4.
NOTE 1 The dimensions of large and small earth-moving machinery operators were derived by combining national data to represent the worldwide operator population. Therefore a small number of the smallest and largest na- tional operators will be smaller or larger respectively than the 5th and 95th percentile worldwide operator population. Nominally 75 mm of vertical seat adjustment is recom- mended accommodate these operators. See ISO 6682:1986, annex A. 4.2 Dimensions The dimensions given include an allowance for the height of shoes or boots and the thickness of work clothing. In the “large operator (arctic clothes)” col umn in tables of figures 2, 3 and 4, the dimensions are of uncompressed clothing (except where the op- erator is seated) with heavy mittened hands and the head covered with parka hood. 4.3 Erect posture All dimensions are of an operator in an erect posture. A normal posture is “ slumped” and the dimensions will be slightly less: stature (1A) and overhead reach (2A) will be reduced about 15 mm, while sitting chest height (3A) and stting eye height (3B) will be reduced about 25 mm.
5 Minimum operator space envelope 5.1 The minimum operator space envelope is the interior dimension of the operator’s enclosure. The minimum recommended operating space envelope around the clothed operator for operator enclosures (cabs, ROPS, FOPS) is given in figure5 for a seated operator and in figure6 for a standing operator. The dimensions given relate to the seat index point (SIP), as defined in ISO 5353. The outine of the space envelope does not imply the shape of the enclosure. Potential adjustments to the minimum operator space envelope for particular ma- chine applications and constraints are given in 5.3, 5.5 and 5.6. 5.2 The minimum operator space envelope is based on the large operator dimensions given in figures 2 and 3, and is measured to the interior surface without visible surface deformation of the operator enclosure.