Stepping device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 1, 1981
Grant Date -
N/A
app pub date -
Mar 10, 1980
filing date -
Mar 10, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stepping device supported on two legs capable of walking or stepping up and down steps. The device has a pair of legs rotatably mounted to and suspended vertically from spaced points on a link. A pendulum is rotatably mounted to the link and suspended vertically from a central axis on the link between the leg mounting points. Means is provided for swinging the pendulum from the vertical thereby increasing the lever arm from the center of gravity of the pendulum to the mounting point of the leg closest to the pendulum. As the pendulum approaches the horizontal, the moment about the mounting point in a direction opposite the direction of pendulum movement exceeds the counter moment about the mounting point. This causes the link to lift the trailing leg up and over the leading leg, thereby maintaining the balance of the device on the supporting leg and causing a stepping movement. Unlike other walking devices, the linkage of the present invention is capable of walking or stepping up and down steps or an inclined plane, as well as traversing a horizontal plane surface.
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