Índice de Adequação de Símbolos Gráficos Utilizados em Tratores Agrícolas

Abstract

The objective of this work will be to propose an index that quantifies the level of compliance of the graphic symbols contained in the instrument panels, controls and operating commands of agricultural tractors, based on the technical standards NBR ISO 3767-1 and NBR ISO 3767-2 and the panels safety and risk pictograms attached to agricultural tractors, based on NBR ISO 11684. The work involved surveying the symbols through photographic records on tractors available at dealerships in the municipality of Alegrete-RS, of the main manufacturers of agricultural machinery. They were classified according to the power range, taking as a parameter the classification of the National Association of Automotive Vehicle Manufacturers (ANFAVEA), in Class I tractors (< 36 kW), Class II (36-73 kW), Class III (74- 147 kW) and Class IV (>147 kW). The data obtained were tabulated and compared with the standard established by the referred norms. Based on the proposed index, an indication can be obtained that represents the maximum compliance presented by the tractor, in relation to the NBRs. For Class II this index was 3.0, for Class III, 1.9 and Class IV, 1.7. However, none of the evaluated models, in their classes, reached these values. Class II tractors, presented an average index of 2.2, this category was the furthest away from its maximum index. Class III and IV tractors obtained average rates of 1.5 and 1.4 respectively, these tractors were the ones that came closest to their maximum rates. Regarding technical standards, NBR 3767-1 was the standard that most had its content met, with 87% of symbols compliant. Followed by NBR 3767-2 with 79% compliance and NBR 11684 with 69% compliance. Keywords: pictograms; normalization; security; control Panel; agricultural operation.