Skateboard driven with both feet
OwnerYoshijiro MATSUIinventor
Life of this patent
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Abstract
A conventional skateboard driven by swinging a board with both feet like a seesaw has a great number of parts, is complicated and becomes heavy. Therefore, a light traveling performance is deteriorated. Further, increase of the parts number adversely affects a manufacturing cost. The invention employs a mechanism which can drive in a swinging board with the least parts structure. Further, a shape of the board on which both feet are got is formed into a so-called inverse gull-wing shape, thereby suppressing a ground height of a boarding surface. Further, a flexible motion performance can be achieved at a corner by the provision of a steering mechanism.
Claims6
A skateboard driven with both feet, the skateboard comprising:
- a main body frame of the skateboard;
- wheels which are attached to both ends of the frame;
- and
- a gear box which is provided at the center of the frame,
- wherein a board on which both feet are got is rotatably attached to a board support shaft which is provided in the gear box, two rotating shafts are provided in the gear box, two pulleys are attached side by side to each of the rotating shafts, a one-way clutch is pressed into between one of the two pulleys and each of the rotating shafts, right and left two pulley rows are formed by the two rotating shafts and the four pulleys, an endless belt attached to both ends of the board is wound around one pulley row of the two pulley rows so as to alternately draw an S-curve, and a different endless belt is wound around the other pulley row in the same rotating direction and is extended to a driven pulley attached to a drive wheel shaft so as to be wound around and closed.
A skateboard driven with both feet, the skateboard comprising:
- a main body frame of the skateboard;
- wheels which are attached to both ends of the frame;
- and
- a board support shaft which is provided at the center of the frame,
- wherein a board on which both feet are got is rotatably attached to the board support shaft, two rotating shafts are provided at the center of the frame, two pulleys are attached side by side to each of the rotating shafts, a one-way clutch is pressed into between one of the two pulleys and each of the rotating shafts, right and left two pulley rows are formed by the two rotating shafts and the four pulleys, an endless belt is wound around one pulley row of the two pulley rows so as to alternately draw an S-curve, is wound around a board end pulley which is attached to both ends of the board, and is thereafter fixed to both ends of the frame, and a different endless belt is wound around the other pulley row in the same rotating direction and is extended to a driven pulley attached to a drive wheel shaft so as to be wound around and closed.
Dependencies are inferred from the claim text.