Design And Development Of Ergonomics Mouse Tray For Office Workers

Tiong, Jing Yin (2018) Design And Development Of Ergonomics Mouse Tray For Office Workers. Project Report. Universiti Teknikal Malaysia Melaka, Melaka. (Submitted)

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Abstract

Several publications reported high prevalence of musculoskeletal issues among office workers. Only a few interventions efforts have focused on solving the problem from an engineering control point of view. Further investigations of office workers identified recurring issues such as poor posture, repetitive motion and duration of using mouse may increase the risk factors of Upper Limb Musculoskeletal Disorders(ULMDs). ULMDs are become very common in office working area. The aim of this project is to design and develop a prototype mouse tray that is cost effective and can improve the upper limb posture when using computer mouse. The methodology was segregated into three phases- Phase 1, Phase 2 and Phase 3. Phase 1 includes literature review, review reports of professional ergonomics assessments that collected from consulting ergonomic company. Phase 2 is need assessments of office workers, design specifications, product conceptualization, collecting dimensions of keyboard and narrowing down the conceptual design by using Pugh’s screening method and getting feedback from professional ergonomics consultants. In addition, Solidworks software was used to do simulation and analysis on stress and safety factor of proposed mouse tray. Cost analysis was developed by using Breakeven Analysis to calculate the breakeven quantity and breakeven cost for PLA prototype and Aluminium prototype. Besides, five professional ergonomics consultants were selected to test and evaluate the proposed mouse tray. In conclusion, it was observed that the upper limb posture of the professional ergonomics consultants was improved and the distance between alphabet typing and computer mouse was reduced. The results of average time taken for subjects to complete the given task by using proposed mouse tray is shorter than the time taken by using traditional approach.

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