Dětská čtyřkolka

Abstract

This bachelor thesis deals with children‘s quadricycles and the summary of various types of their construction, it compares the types of quadricycle‘s construction and selects a suitable option. Furthermore I focus on somatography of children‘s body and the safety and ergonomy of quadricycles. The purpose is the construction drawing of children´s pedal quadricycle, the check of chain, calculation of frame and dynamic. The immediate action of the force on the frame will be very variable. I will carry out check calculation of the frame by means of Finite Element Method because of intricate welded construction. I will verify by means of dynamic calculation if the children´s quadricycle doesn´t turn over when a child rides to a turning, or doesn´t turn over when a child rides up the hill. I enclose the general construction drawing of the quadricycle and the working drawing of a selected part.