抄録
This paper describes development of device for pulling up weeds including the roots. First, we investigated force for pulling up weeds by experiments quantitatively. The result indicated that the force is under 5 N in the case where the length of the weeds are under 10 cm. Then, based on this result, we developed a new mechanism for pulling out weeds including the roots. The developed mechanism utilized a roller for pulling up weeds. Then, we have investigated the effectiveness of the developed new mechanism in outdoor environments. As a result, we have confirmed that the roller mechanism is useful for pulling up weeds.
