| 摘要 |
PROBLEM TO BE SOLVED: To extremely reduce energy (driving means) required to raise a load along a slope small by negating lowering force by using component force of the load itself. SOLUTION: An upward and a downward slope in parallel with each other, are provided, a first roller is brought into contact with the inside of a wheel placed on the upward slope free to roll, a load is applied on a loading member installing it free to rotate on it, a border part with the other piece of it is supported on an axle free to rotate in a state where one piece of a reverse L letter member is directed to the upper side of the upward slope, a second roller installed on a lower part of the other piece free to rotate is brought into contact with the downward slope free to roll, a connecting member is held orthogonally toward the upward slope by installing it free to rotate in the neighbourhood of a head end by of the one piece, a third roller installed on a lower part of the connecting member free to rotate is made contact with the downward inclined surface free to roll, a filament body is provided between a first roller shaft center and third roller shaft center, and length of the filament body is adjusted so that the first roller shaft center is sufficiently positioned higher than a contact point of the upward slope and the wheel.
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