To provide a caster which can lock or release the lock with a small force in a reliable manner, and to provide a dolly and a bed.SOLUTION: A caster 10 includes: a jig 11 fixed to a transported object; a wheel 14 in which a shaft 13 is connected to a rotation center; a shaft case 12 which pivotally supports the wheel 14 and the jig 11 and connects the wheel 14 with the jig 11; a stopper member 24 which may come into contact with a wheel 39 of the wheel 14; a stopper mechanism having a toggle structure including the stopper member 24, the stopper mechanism provided within the shaft case 12 and including a swing cam 19 which is pressed by an operation mechanism 18 to be swung and a link member 23 in which one end is pivotally supported by the swing cam 19; an operation mechanism 18 which deforms the toggle structure to bring the stopper member 24 into contact with the wheel 39 and thereby stop rotation of the wheel 14; and a rotation limiting mechanism 40 which limits rotation of the swing cam 19 when the link member 23 is substantially erected from the shaft 13 in a radial direction.SELECTED DRAWING: Figure 4

    【課題】軽い力で確実にロック及びロック解除をすることができるキャスタ、台車及び寝台を提供する。【解決手段】 キャスタ10は、運搬物に固定される治具11と、回転中心にシャフト13が接続された車輪14と、車輪14及び治具11をそれぞれ軸支して車輪14と治具11とを接続するシャフトケース12と、車輪14のホイール39に当接可能なストッパ部材24と、ストッパ部材24を含むトグル構造を有するものであって、シャフトケース12内に設けられて操作機構18に押されて揺動する揺動カム19と、揺動カム19に一端が軸支されるリンク部材23と、を備えるストッパ機構と、トグル構造を変形させることでストッパ部材24をホイール39に当接させることによって車輪14の回転を止める操作機構18と、リンク部材23がシャフト13から放射方向に向かって略直立したときに揺動カム19の回転を制限する回転制限機構40と、を備える。【選択図】 図4


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    Title :

    CASTER, BED, AND DOLLY


    Additional title:

    キャスタ、寝台及び台車


    Contributors:

    Publication date :

    2024-05-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / A47C Stühle , CHAIRS / 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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