Design of ergonomic chair for the embroidering processes of the bag making (case study: CV. Pinus Bag’s Specialist)

Abstract

Physical activities related to work activities in production operators are jobs that need attention—operator activity on a CV. Pinus Bag’s Specialist engaged in convection, especially in the embroidery process, is done using a machine; the design will be sent from the computer to the embroidery machine monitor. The operator on duty would set the fabric to be embroidered, thread the needle, frequently change the thread, and correct the twisted thread. Meanwhile, the risk level of the embroidery workers has not been evaluated, and no unique chairs have been designed for it. Then, this study will assess the risk level of employees working in the embroidery department and create ergonomic chairs that are comfortable, durable, and robust. The risk level of workers is assessed using REBA. It uses anthropometric data from 2 workers who work in the embroidery section at CV. Pinus Bag’s Specialist, Yogyakarta, Indonesia. The anthropometric data come from buttocks-popliteal length (seat length), popliteal height (chair height), hip width in the sitting position (chair base width), and side shoulder width (chair back width). And shoulder height in the sitting position (backrest height). After that, the chair is designed with the help of the application. The study indicates that most of the work activities in the embroidery process require corrective action. In addition, the chair design used for the embroidery process is adjustable, comfortable, durable, and strong. The seat height is adjustable with an operator and an embroidery table. Ultimately, the embroidered chair reduced work risk from medium to work postures with low work risk.