Wilson, Bruce, Northeastern University, Department of Mechanical Industrial and Manufacturing Engineering
A garden tool is developed to enable the tying of a vine plant to a wooden stake using only one hand to operate the tool. The tool is a hand-held device containing several mechanisms that work together to produce a knotted loop of string around the plant and the stake. These mechanisms include a circular needle that forms the loop of string and a pair of rotating jaws that manipulate the two ends of the looped string to form a knot. The user holds and operates the tool by repeatedly squeezing a trigger. Internal gearing transforms the linear reciprocation of the trigger to unidirectional rotary motion of the needle and the jaws. The gear system also times the motion of components, so that the needle forms a loop of string then stops while the jaws rotate to make the knot.
garden tool, one-handed tool
Northeastern University, Department of Mechanical Industrial and Manufacturing Engineering
Haq, F.; Harrison, A.; Pendleton, R.; Rathbun, J.; and Thomas, K., "Design of a One-Handed Tying Tool" (2007). Capstone Design Program: Mechanical Engineering. Paper 34. http://hdl.handle.net/2047/d10010476
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