Stair climbing vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 3, 1996
Issued Date -
N/A
app pub date -
Oct 16, 1995
filing date -
Jun 4, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle which goes up and down stairs includes a vehicle body (101), front and rear wheels (102) and (103) provided at the front and rear of the vehicle body (101), respectively, front and rear auxiliary wheels (105) and (107) for lifting up or down the front and rear wheels (102) and (103) by one step of stairs, respectively, a driving unit for driving each wheel, a pivoting unit for pivoting the front and rear auxiliary wheels (105) and (107), sensors (121) to (124) for detecting a riser portion of stairs, and a control unit (120) for controlling the driving unit and the rotating unit in accordance with results of the sensors (121) to (124). Since the vehicle goes up and down stairs by rotation of the auxiliary wheels (105) and (107), a corner portion of the step of stairs is not damaged while the vehicle goes up and down stairs.
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