DESIGN AND FABRICATION OF AUTOMATIC STAIRCASE CLIMBING TROLLEY

Abstract

The paper aims to bring forward a means to transport heavy objects over the stairs. The need for such a system is obvious from the day-to-day requirements of our society. Devices such hand trucks are used to relieve the stress of lifting while on a flat ground; however, these devices usually fail when it becomes necessary to negotiate a short flight of stairs. In the light of this, paper attempts to design an automatic stair climbing hand cart which can carry heavy objects up to the stairs with less effort compared to carrying them manually. It also endeavors to study the commercial viability and importance of such a product. several designs were conceived that would allow a non-industrial hand truck to travel over stairs, curbs, or uneven terrain while putting minimal strain on the user. One strategy, a three-wheel rotating system, is chosen for development and several solid models were created and a prototype is constructed. it is determined that the hand truck design is a viable option for a stair-climbing consumer product