Experimental Investigations on the Effect of Wheel Size on an Industrial Trolley
Manual material handling using push–pull trolleys in small- and medium-scale enterprises (SMEs) has become an inevitable activity. A study was carried out to find the best wheel size in pushing a newly developed industrial trolley. Three various wheels of sizes 100, 125 and 150 mm diameters were used in this study. The results present the best wheel size and comfortable handle height of the trolley for five subjects of different stature at five varying loads. Experiments were conducted in a laboratory for a selected population of five subjects with a varying stature 1650, 1740, 1780, 1790 and 1820 mm, with five different loads 75, 156, 188, 219 and 250 kg and with five different handle heights 900, 950, 1000, 1100 and 1150 mm. Handle height of 1100 mm and a 150 mm diameter wheel size was found to be better in reducing the effort required in pushing the trolley and in reducing the discomfort experienced by the subjects.
KeywordsManual material handling Wheel size Heart rate (HR) EMG Industrial trolley
- 1.Kumar, P., Maiti, J.: Ergonomic design of products and work systems. 21st Century perspectives of Asia, Springer ISBN 978-981-10-5457-0 (2018)Google Scholar
- 4.Halloran, R.O., Tedja, I.: Reducing manual handling injury risk through trolley design in anatomy teaching laboratory. Australian Universities Safety Association Conference, Queenstown (2015)Google Scholar
- 5.Somnath, G., Dev, S.: Design and evaluation of ergonomic interventions for the prevention of musculoskeletal disorders in India. Ann. Occup. Environ. Medicine 26, 18. https://doi.org/10.1186/2052-4374-26-18, 2014
- 7.Douglas, C.: Montgomery, Design and Analysis of Experiments, 8th Edn. Wiley Inc., ISBN 978-1-118-14692-7 (2013)Google Scholar