Posto fixo ou rotação de tarefas na paletização manual do setor de acabamento e embalagem de uma indústria de baterias automotivas: análise com foco na incidência de lombalgia

Abstract

This study addresses an ergonomic work analysis focused on the incidence of low back pain in the task of manual palletizing with use of fixed location or sector rotation finishing and packaging of a battery industry automotives. Tee to analyze the work at a gas manual palletizing economic activity of lead-acid batteries, which uses job rotation, discuss the incidence of low back pain and influence of this form of work organization in the activity of workers. In order to validate the hypothesis that the height of the pallet in relation to the belt contributes to the onset of low back pain. The rotation task influences the activity, and worker health. The job rotation affects the activity of the worker in relation to the fixed station. The methodology used was the Ergonomic Work Analysis (EWA) held through 29 visits lasting 4 hours. The instruments used for data collection were: notebooks, camera (Sony W35), and audio recorder, goniometry for measuring lumbar flexion angle (Carci), tape measure and stopwatch. Interviews were conducted open and semi-structured interviews with workers to understand the task of manual palletizing and their characteristics. Data analysis were 33 employees in the sector divided into six work stations, being the last station on the line palletizing. Of these 9 employees perform rotation with palletizing station, aged 23 to 46 years old, height between 1.58cm to 1.90 cm; work time in function between 4 to 10 years. After analyzing the activity of the worker responsible for palletizing, enumerated the following factors that may contribute to the onset of low back pain: Pallet located on the ground, the weight of the batteries, setting the rotation, transfer of stock batteries. Recommendation How suggested a system that allows control of elevation and depression of the pallet by the worker to perform this transfer without expending large amplitudes of lumbar flexion and organizational changes that may homogenize the rotation tariffs. Tails changes are needed to reduce the overhead lumbar to which the worker is exposed palletizing.