TRI- WHEEL TROLLEY

Abstract

In this era of modernization, there have been various revolutions in the field of engineering. However, there are still changes in the process of moving an item or load to a higher place compilation using stairs. The creation of elevators is one of the solutions for the process to load transfer process, however, the facilities of elevators are not available everywhere. For example, schools, construction areas, colleges, and so on. This project aims to create an appropriate mechanism for the transfer loads thru stairs either going up or down. This shows that human needs are increasing over time. A hand trolley is one of the devices that can be used to decrease pressure from loads on flat ground. However, usually, this device fails to carry the load thru stairs. So this project aims to create a trolley that can lift a heavy loads and be used thru stairs or uneven terrain with the low energy needed to operate. In addition, the main objective of this project is to find an effective and user-friendly method for users to carry load thru stairs with as minimum force as possible thus providing smooth movement compilation of the load transfer process. Therefore, we have innovated a trolley that can climb stairs. The trolley has three wheels on both sides, and three wheels are used in the tri-winding frame. In addition, the folding chair is also combined with a trolley for users to relax after using it. An adjustable handlebar feature is added to match users’ comfort by adding ergonomic factors to ensure users can feel more comfortable when using this product. The study begins with the collection of information through questionnaires, analysis of information obtained as well as comparisons made with previous studies. The results of the questionnaire found that 75% of respondents agreed that users need a lot of force, especially when climbing stairs. In addition, 63% of respondents stated that it is difficult to move on uneven and bumpy surfaces. At the same time, 50% of respondents found existing trolleys are not suitable for heavy lifting.