To prevent leakage of grease with a lid plate attached even after removing an external rolling wheel by using a structure of mounting the external rolling wheel on the lid plate with a grease reservoir part for lubricating a bearing part of a rolling wheel support shaft even when it is structured to remove the external rolling wheel.SOLUTION: The top rolling wheel is a top rolling wheel (13) for rolling-supporting an upper side part in a rolling region of a crawler and is structured to fit a hub (18) serving as a grease reservoir part formed integrally with a lid plate (19) onto a side end part of a cylindrical body (16) bearing-retained on a support shaft (14) and to detachably fasten and fix the lid plate (19), a part of the side end part of the cylindrical body (16) and an external rolling wheel (13a) with a fastener (23).SELECTED DRAWING: Figure 2

    【課題】外側の転輪を取り外すものでありながら、転輪支軸の軸受部に注油するグリース溜め部を有した蓋板に外側転輪を取り付けるようにすることで、外側転輪を取り外しても蓋板は取り付けたままとし、グリースの漏出を防止すること。【解決手段】本発明は、クローラの巻回域の上辺部を転動支持する上部転輪(13)であって、支軸(14)に軸受保持された筒体(16)の側端部に、蓋板(19)に一体形成されたグリース溜め部となるハブ(18)を嵌合し、前記蓋板(19)と前記筒体(16)の側端部の一部と外側転輪(13a)を締付具(23)で着脱自在に締付固定したことを特徴とする上部転輪である。【選択図】図2


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    Title :

    TOP ROLLING WHEEL


    Additional title:

    上部転輪


    Contributors:

    Publication date :

    2019-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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