DRIVING DEVICE FOR SELF TRAVELING TYPE DOLLY

摘要

PURPOSE:To premit the smooth traveling by constituting driving wheels from the left and right front and rear side driving wheels in pair and allowing a dolly to travel by itself through the trace of a guide tape arranged on a floor surface. CONSTITUTION:When a rotary body 58 is revolved by a motor 55, a link 60 moves downward, and a pressure rod 67 is moved downward. Also a vertical turning plate 13 is moved downward by compression springs 66 and 66, and driving wheels 31, 32, 33, and 34 contact a floor surface 52. As for the vertical turning plate 13, only the pressure rod 62 moves downward, and when the rotary body 58 reaches a bottom dead center position, the vertical turning plate 13 stops. The spring pressure of the compression spring 66 acts as grounded pressure on the driving wheels 31, 32, 33, and 34. The driving wheels 31, 32, 33 and 34 travel by themselves to a destination place through the trace along a guide tape according to a program by the normal and reverse revolution motors 39 and 40. Since the grounding of at least left and right wheels is secured, the traveling performance on obstacles is improved drastically, and the direction change due to the obstruction is reduced, and the straight advance performance in the ordinary traveling is improved, and the smooth traveling as a whole can be expected.