To provide an upper rolling wheel structure of a crawler traveling device, capable of facilitating departure of a crawler from an upper rolling wheel toward outward and achieving highly efficient crawler maintenance work.SOLUTION: For rolling-contact support of a crawler non-contact side inner-peripheral surface side of a crawler 17 wound around a drive sprocket 10, a lower rolling wheel 13 and a follower wheel 12 by an upper rolling wheel 16 provided at a rolling wheel shaft 18 on the track frame 11 side, a plurality of chevron-shaped hole opening parts 30 are formed on the outward side of an outer-peripheral surface of a rolling wheel boss part 26 of the upper rolling wheel 16 in the peripheral direction, and a mandrel movement space allowing movement of a mandrel projection 17a of the crawler 17 is formed between the adjacent hole opening parts 30.SELECTED DRAWING: Figure 6

    【課題】上部転輪からクローラを外方側に容易に離脱することができ、能率のよいクローラメンテナンス作業を可能にするクローラ走行装置の上転輪構造を提供する。【解決手段】駆動スプロケット10と下部転輪13と従動輪12とに懸回したクローラ17のクローラ非接地側内周面側を、トラックフレーム11側の転輪軸18に設ける上部転輪16によって転接支持するに、上部転輪16の転輪ボス部26の外周面の外方側に、その周方向に複数の山形の孔開け部30を設け、隣接する孔開け部30との間に、クローラ17の心金突起17aの移動を許容する心金移動空間を形成する構成にした。【選択図】図6


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    Title :

    UPPER ROLLING WHEEL STRUCTURE OF CRAWLER TRAVELING DEVICE


    Additional title:

    クローラ走行装置の上転輪構造


    Contributors:

    Publication date :

    2019-06-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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