ISO International Standard 6880 INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONMEKAYHAPOAHAA OPTAHW3ALWMR NO CTAHAAPTW3ALWWORGANISATION INTERNATIONALE DENORMALISATION AvstIniermct Dcc Sec! Machinery for agriculture - Trailed units of shallow tillage equipment - Main dimensions and attachment points Materiel agricole --Unites trainees de materiel de preparation superficielle du sol -Principales dimensions et points de fixation First edition - 1983-02-01 JAN 31 1083 ISO 6880-1983 (E) UDC 631.3: 629.028 Ref.No. ISO 6880-1983 (E) Descriptors : agricultural machinery, soil working equipment, couplings, dimensions. Price based on 2 pages Foreword ISo (the International Organization for Standardization)is a worldwide federation of national standards bodies (IsO member bodies). The work of developing International Standards is carried out through ISo technical committees. Every member body interested in a subject for which a technical committee has been authorized 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. International Standard ISo 6880 was developed by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry,and was circulated to the member bodies in November1981. It has been approved by the member bodies of the following countries : Australia France Portugal Belgium Germany, F. R. Romania Brazil India South Africa, Rep. of Bulgaria Irag Sweden China Italy Switzerland Czechoslovakia Korea, Rep. of Turkey Denmark Mexico UnitedKingdom Egypt, Arab Rep. of New Zealand USSR Finland Poland No member body expressed disapproval of the document. ? International Organization for Standardization,1983 Printed in Switzerland ISO6880-1983(E) INTERNATIONAL STANDARD Machinery for agriculture --- trailed units of shallow tillage equipment - Main dimensions and attachment points Scopeand field of application 2 Main dimensions of yokes 7 This International Standard lays down the main dimensions and The yokes of a bearer frame are specified by the following specifies the modular arrangement and above-ground disposi- dimensions (see the figure1) : tion of yokes on bearer frames designed for coupling bearer frames and traction links of soil working equipment. S = Distance between yokes This International Standard applies to shallow traited tillage H = Yoke height above the ground equipment with traction resistance up to 1 200 N per metre of the working width. d = Diameter of yoke hole α = Distance between yoke sides b = Distance from the hinge axle to the front yoke wall R = Distance from the hinge centre to the farthest point of a yoke 1)The figure is given to indicate the dimensions of yokes, not to define their design.