Design of Working Table for Fret Wiring Operators With Nida Method in Guitar Industry Mancasan Sukoharjo

Abstract

The guitar industry is in Mancasan, Sukoharjo regency is a smallmedium enterprises which carried out finishing process to produceacoustic guitars. All of the process are done manually without anymachine. There is one process called fret wire installation where theoperator is in a static work posture for an extended period of time tohold the work piece. Nordic Body Map (NBM) assessment showedthat almost all assessed workers have pain in hip and right upperarm. There is indication of Musculoskeletal Disorders (MSDS) risk inleft upper arm, back, and waist of workers who conduct fret wiresinstallation process. This indication is confirmed using REBA. REBAScore for fret wiring operator is 10, it indicates that the investigationand modification was needed as soon as possible. This arises to aproblem called workers MSDS due to awkward posture. Thisresearch aims to design an ergonomic working table to reduce therisk of musculoskeletal disorder for fret wire installation operators.REBA was used to evaluate working posture to find the specificproblem. In addition, NIDA product development process andanthropometry concept were also implemented to develop workingtable based on the problem previously found. The result is theproposed working table which specifications are has adjustablesystem on the leg of the table, features a lock to hold the guitarhead, a support with a pad for the neck and body of the guitar, awork tool area and a half-coil fret wire arrangement, and a curvedtable base so that the operator is in a comfortable position and isclose to the work piece.