The Tool Design for Measuring and Cutting Roll-shaped Materials In The Building Materials Retailer
Keywords:tool prototype, roll-shaped material, body posture, REBA, Arduino
This research was conducted by taking a case study of a retail store that sells various kinds of building materials. Workers in this shop found it difficult to measure and cut any roll-shaped materials. In addition to a longer time to measure and cut the materials, workers also experienced several kinds of pain after doing these activities. Based on the result of Cornell Musculoskeletal Discomfort Questionnaire (CMDQ), it was known that the workers experienced pain in their lower back (23.6%), upper back (20.5%), waist (14.1%) and neck (12.7%). Therefore, in this research, a tool will be designed to make it easier for workers to measure and cut roll-shaped material. The design was carried out based on the results of body posture analysis using the REBA (Rapid Entire Body Assessment) method. The improvement of the worker's posture was carried out by making a tool for measuring and cutting roll-shaped materials. The 3D model for the tool was developed by using the CATIA application. The design of the tool is in the form of a support with 2 rollers which have a total dimension of 150 cm long, 50 cm wide and 110 cm high. Based on REBA analysis, it was known that there was a significant decrease in REBA scores from 11 (high risk level) for the current work posture to 3 (low risk level) in the proposed work posture using the designed tool. This decreasing of the REBA score happened because the tool was designed so that workers can operate it in a standing position with a roller at elbow height. To ensure that the designed tool could work properly, a prototype of the tool was made in a small scale model. In addition to accomodating ergonomic posture, the tool prototype also could measure the material automatically. The measurement automation process uses Arduino as the main microcontroller which will regulate the motion of the stepper motor used.
A-plus, Rak penyimpanan kain rol, [online], Diakses dari: http://id.all4racking.com/ specialty-racks/roll-storage/fabric-roll-storage-rack.html [2022, 2 Agustus]
Arunkumar, P. M., Priyadharsini, S., Akesh, R., Dharun, M., Gokul, M., & Gokul Pradeep, K. S. (2020). Fabrication Of Paper Cutting Machine Using Eye Mark Sensor. IOP Conf. Ser.: Mater. Sci. Eng. 993
Athani, V.V. (2005). Stepper Motors Fundamentals, Applications and Design. New Delhi: New Age International Publishers.
Cho, K., Cho H. Y., & Han G. S. (2016). Risk factors associated with musculoskeletal symptoms in Korean dental practitioners. Journal of Therapy Science, 28(1), 56-62.
Chuan, T.K., Hartono, M., & Kumar N. (2010). Anthropometry of the Singaporean and Indonesian Populations. International Journal of Industrial Ergonomics, 40, 757-766.
Erman,Ç. (2019). Ergonomic Risk Assessment using Cornell Musculoskeletal Discomfort Questionnaire in a Grocery Store. Ergonomics Int J, 3(6): 000222.
Hedge, A., Morimoto, S., & Mccrobie, D. (1999). Effects of keyboard tray geometry on upper body posture and comfort. Ergonomics, 42(10), 1333–1349.
Hignett, S., & McAtamney, L. (2000). Rapid Entire Body Assessment (REBA). Applied Ergonomics, 31, 201-205.
Kadir, A. (2015). Buku Pintar Pemrograman Arduino. Yogyakarta: Mediakom.
Marmaras, N. & Nathanael, D. (2012) Workplace Design. Ed. Salvendy, G., Handbook of Human Factors and Ergonomics (4th ed.). Hoboken: John Wiley & Sons.
Munim, Y. S. & Dharmastiti, R. (2018). Evaluasi Postur Pekerjaan Melepas Lilin Batik Pada Kerajinan Kulit dengan Menggunakan CATIA V5R20. Prosiding Seminar dan Konferensi Nasional IDEC. Surakarta.
Prijatna, D., Saukat, M. & Thoriq, A. (2017). Rancang Bangun Mesin Penggulung Benang Gelasan Otomatis Di Desa Kutamandiri Kecamatan Tanjungsati Kabupaten Sumedang. Jurnal Aplikasi Ipteks untuk Masyarakat, 6(2), 120-124.
Purnomo, H., & Apsari, A. E. (2016). REBA Analysis for Construction Workers in Indonesia. Journal of Built Environment, Technology and Engineering, 1(Sept), 104-110.
Rizkya, I., Syahputri, K., Sari, R.M., Anizar, & Siregar, I. (2018). Evaluation of Work Posture and Quantification of Fatigue by Rapid Entire Body Assessment (REBA). IOP Conference Series: Materials Science and Engineering (309), 012051.
Savitri, A., Mulyati, G.T., & Aziz, I.W.F. (2012). Evaluation of Working Postures at a Garden Maintenance Service to Reduce Musculoskeletal Disorder Risk. (A Case Study of PT. Dewijaya Agrigemilang Jakarta). Agroindustrial Journal, 1(1), 21-27.