BS ISO 7112:2017 pdf download – Machinery for forestry — Portable brush-cutters and grass-trimmers — Vocabulary 1 Scope This document defines terms relating to portable hand-held brush-cutters and grass-trimmers, their cutting attachments and power sources. The brush-cutter position is shown in Annex A. 2 Normative references There are no normative references in this document. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp 3.1 Work functions 3.1.1 felling separation of a standing tree from its root system 3.1.2 shredding reduction of bushes, small trees and other growing organic materials to smaller pieces 3.1.3 trimming cutting of weeds, grass and other similar soft vegetation 3.1.4 cutting means thrust sudden and uncontrolled motion towards the operator’s side or rear that can occur when the rotating cutting means (3.3.1.1) comes in contact with a solid object 3.2 Machine types 3.2.1 brush-cutter unit using a rotating cutting means (3.3.1.1) made of metal or plastics, intended to cut weed, scrub, brush-wood, and similar vegetation 3.2.2 brush saw brush-cutter (3.2.1) fitted with a circular saw blade (3.3.1.1) intended to cut small trees and saplings 3.2.3 grass-trimmer unit using flexible non-metallic line(s) string(s) or similar non-metallic flexible cutting elements, such as pivoting cutters, intended to cut weed, grass or similar soft vegetation 3.2.4 lawn-trimmer electric powered grass-cutting machine with a non-metallic, non-rigid cutting attachment (3.3.1), of a cutting capacity (kinetic energy) of not more than 10 J, operating in a plane parallel to the ground 3.2.5 lawn edge-trimmer powered grass-trimming machine where the cutting attachment (3.3.1) operates in a plane approximately perpendicular to the ground 3.3 Cutting equipment 3.3.1 cutting attachment cutting device such as a cutting means, saw blade or a flexible cutting means 3.3.1.1 cutting means rotating device with cutting edges, designed to cut weed, brush, scrub and similar vegetation 3.3.1.2 saw blade rotating circular metal blade with peripheral cutting teeth, designed to cut wood, such as small trees and saplings, by continuously removing material 3.3.1.3 flexible cutting means non-metallic rotating cutting means (3.3.1.1) using flexible line(s), string(s) or pivoting cutting elements 3.4 Safety devices 3.4.1 cutting means retainer saw blade retainer retainer mechanism which holds the cutting means (3.3.1.1) or saw blade (3.3.1.2) to the driving member 3.4.2 cutting...
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