PROBLEM TO BE SOLVED: To achieve improvements in a drive tumbler which is used in a large-sized crawler for use in a self-travelling lift crane or the like, and method for manufacture and use of the crawler itself.SOLUTION: A crawler 14 is equipped with a track connection system. This crawler includes: a crawler frame 43, at least one drive tumbler supported on the frame 43; and a track 50 which comprises plural track shoes 52 which are connected to one another in series and form a track having a first end and a second end, and which is formed as an endless track by connecting the first end and the second end. In the track, the first end is spaced from the second end, and each end is wound on the frame in the state adjacent to a portion of the frame 43. A track connection system is fitted to the frame, and includes a transfer device connected to the frame, and a track engagement member which is connected between the transfer device and the track 50. When the transfer device is operated, the track engagement member moves the track to a position where the first end and the second end can be connected to each other.

    【課題】自走式リフトクレーンなどに用いられる大型クローラーに使用されている駆動タンブラー、及びクローラー自体の製造及び利用法に関係する改良。【解決手段】クローラー14は軌道接続システムを備える。このクローラーは、クローラーフレーム43と、フレーム43に支持された少なくとも1つの駆動タンブラーと、直列に接続されて第1端と第2端を有する軌道を形成する複数の軌道シュー52からなり、第1端と第2端とを接続することで無限軌道となる軌道50と、を備える。軌道は、第1端と第2端の間隔が空いていて、各端がフレーム43の一部に隣接した状態でフレームに巻き付けられる。軌道接続システムは、フレームに取り付けられ、フレームに接続された移動装置と、移動装置と軌道50との間に連結された軌道係合部材とを備え、移動装置を作動させると、軌道係合部材が軌道を第1端と第2端とを接続可能な位置にまで動かすようになっている。【選択図】図5


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    Title :

    CRAWLER EQUIPPED WITH TRACK CONNECTION SYSTEM, LIFT CRANE EQUIPPED WITH CRAWLER, AND METHOD FOR CONNECTING END OF TRACK OF CRAWLER


    Additional title:

    軌道接続システムを備えるクローラー、クローラーを備えるリフトクレーン、及びクローラーの軌道の端部を接続する方法


    Contributors:

    Publication date :

    2015-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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