To provide a step passing over mechanism capable of additionally mounting a sub wheel to a travel device body as needed, and a travel device with a simple configuration.SOLUTION: A step passing over mechanism 40 includes a sub wheel 41 provided on a front side in the traveling direction of a main wheel of the main wheel supporting a travel vehicle body in a movable manner, a bearing member 42 supporting an axle 41b of the sub wheel 41 in a rotatable manner, an elastic member 43 for supporting the bearing member 42 in a cantilever manner so as to make the sub wheel 41 floating from a floor surface only by a prescribed amount, and a holding member 44 detachably attached to the travel vehicle body to hold a base end part of the elastic member 43. The elastic member 43 is configured to be elastically deformable in the traveling and vertical direction of the main wheel 21, and the bearing member 42 has a vertical gap from the travel vehicle body 10 such that the bearing member 42 is displaceable upward when the sub wheel 41 passes over a step part.SELECTED DRAWING: Figure 4

    【課題】必要に応じて走行車本体に副車輪を追加装着可能な段差乗越え機構及び走行装置を簡単な構成で提供する。【解決手段】段差乗越え機構40は、走行車本体を移動可能に支持する主車輪よりも、該主車輪の進行方向前側に設けられた副車輪41と、副車輪41の車軸41bを回転可能に支持する軸受部材42と、副車輪41が床面から所定量だけ浮いた状態になるように軸受部材42を片持ち梁状に支持する弾性部材43と、走行車本体に着脱可能に取付けられ、弾性部材43の基端部を保持する保持部材44とを備え、弾性部材43は、主車輪21の進行方向及び上下方向に弾性変形可能に構成され、軸受部材42は、副車輪41が床面上の段差部に乗り上げた際に軸受部材42が上側に変位可能なように、走行車本体10との間に上下方向の隙間を有している。【選択図】図4


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    Title :

    STEP PASSING OVER MECHANISM AND TRAVEL DEVICE WITH STEP PASSING OVER MECHANISM


    Additional title:

    段差乗越え機構、及び該段差乗越え機構を備えた走行装置


    Contributors:

    Publication date :

    2021-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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