Improvement of Transfer Wheel Marker Design Using the Quality Function Deployment (QFD) Method for School Field Line Marking

Abstract

The line marking of sports fieldsis a must-doactivity in every school in Malaysia since most of the schools only have one field that is used for many sports activities. Thereare many concept designs of sport line markingsin the market, but the most common designusedin Malaysia is a transfer wheel marker. However, the machine lacks many aspects, including clogging problems due to the loose grass, soil sticking to the marker wheel,and its unstable tyre, which may cause the line marking processtimebecomes longerand more difficult. Therefore, this study proposes to improve the design of the transfer wheel marker using the Quality Function Deployment (QFD) method. Based on the QFD method, a House of Quality (HoQ) in the first phase wasapplied, where a questionnaire was created using the information obtained from interviews with school teachers to quantify the needs.The collected data was then analyzed in the HoQ to determine the final ranking of engineering characteristics. With a relative weight of 14.45%, the handle height is ranked first as the characteristic that needs improvement. The second rankingorder is the amount of wasted paintat14.08% and the third rankingis tyre friction which is 11.86% relative weight. Hence, the identified three priority components will lead to the improvement of the transfer wheel markerdesign.