To provide a wheel device which enables ascending/descending of steps while securing advantage of a tire-type device when driving on a flat land, the wheel device not requiring a special control when moving from the flat land to a step or from the step to the flat land.SOLUTION: A step ascending/descending wheel device includes: a wheel; an annular rail; a plurality of ascending/descending arms; an elastic body provided between the adjacent ascending/descending arms; and a step detecting ring. The ascending/descending arms includes a one-way lock mechanism which locks a slide in an opposite direction while allowing a slide in one direction. When driving on a flat land, the wheel is grounded on the land. When ascending/descending the step, the step detecting ring is warped by the function of a stepping surface or a stepping-in surface of the step, which operates the one-way lock mechanism of the ascending/descending arms in cooperation with the warpage. The device ascends/descends the step by engaging the stepping surface of the step and a protruded part provided protruding outward from an outer diameter of the wheel of the ascending/descending arms.SELECTED DRAWING: Figure 2

    【課題】平坦地での走行におけるタイヤ方式の利点を確保した上で段差の昇降を可能とする車輪装置であって、平坦地から段差への移行時に、または、段差から平坦地への移行時に特別な制御の必要のない車輪装置を提供する。【解決手段】段差昇降用車輪装置は、車輪と、環状レールと、複数の昇降用アームと、隣接する昇降用アーム間に張架された弾性体と、段差検出リングと、を備える。昇降用アームは、一方向への滑動は許可しつつ逆方向への滑動をロックするワンウェイロック機構を有している。平坦地の走行の際は、車輪が接地して走行する。段差昇降時は、段差の踏み面又は蹴込み面の作用により段差検出リングが撓み、撓みに連動して昇降用アームのワンウェイロック機構が作動し、昇降用アームの車輪の外径よりも外方へ突出して設けられた突出部分と段差の踏み面とが噛み合うことにより段差を昇降する。【選択図】図2


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    Title :

    STEP ASCENDING/DESCENDING WHEEL DEVICE


    Additional title:

    段差昇降用車輪装置


    Contributors:

    Publication date :

    2019-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A61G TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS , Transport, persönliche Beförderungsmittel, oder Lagerung besonders ausgebildet für Kranke oder Behinderte / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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