|発明の名称||DEVELOPING TYPE WHEEL AND TRAVELLING DEVICE UTILIZING THE SAME|
PROBLEM TO BE SOLVED: To provide a developing type wheel and a travelling device utilizing the wheel which makes movement on an irregular ground on which soft ground and high difference such as sandy place and waste land exist possible by means of a relatively simple structure.
SOLUTION: A travelling device 10 is provided with a developing type wheel 13 which is rotatably attached to a vehicle body 11 and is partially developable. The developing type wheel 13 includes a wheel main body 17 which is rollable on a travelling surface and a belt-like auxiliary leg part 18 of which one end side is attached to a part of an outer circumferential surface of the wheel main body 17. The auxiliary leg part 18 is provided so as to be displaceable between a winding state as such a state as to be wound on the outer circumferential surface of the wheel main body 17 and a developing state as such a state as to be separated from the outer circumferential surface except for an attachment portion to the outer circumferential surface, at the same time, functions as a leg body to be grounded to a travelling surface of the proceeding direction front side of the wheel main body 17 with a prescribed timing by a rotation movement in accordance with rotation of the wheel main body 17 upon the developing state and is provided such that the vehicle body 11 can be moved while lifting the wheel main body 17.
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