To provide a pin hole centering structure capable of improving the accuracy of pin hole centering.SOLUTION: A first structure 30 comprises a first pin hole 33, a first abutting member 41, and a fastening member 43. The first abutting member 41 has a first abutting surface part 41a provided to extend along the arc around the central axis A of the first pin hole 33. The fastening member 43 fixes the first abutting member 41 to a first structure body 31. A second structure 50 comprises a second pin hole 53 and a second abutting surface part 61a. The second abutting surface part 61a is provided to extend along the arc around the central axis A of the second pin hole 53 and can be in surface contact with the first abutting surface part 41a. The first abutting member 41 is fixed to the first structure body 31 so that its position can be adjusted by the fastening member 43.SELECTED DRAWING: Figure 4

    【課題】ピン孔の芯出しの精度を向上させる。【解決手段】第1構造物30は、第1ピン孔33と、第1当て部材41と、締結部材43と、を備える。第1当て部材41は、第1ピン孔33の中心軸Aを中心とする円弧に沿って延びるように設けられる第1当て面部41aを有する。締結部材43は、第1構造物本体31に第1当て部材41を固定する。第2構造物50は、第2ピン孔53と、第2当て面部61aと、を備える。第2当て面部61aは、第2ピン孔53の中心軸Aを中心とする円弧に沿って延びるように設けられ、第1当て面部41aに面接触可能である。第1当て部材41は、締結部材43により第1構造物本体31に位置調整可能に固定される。【選択図】図4


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    Title :

    PIN HOLE CENTERING STRUCTURE


    Additional title:

    ピン孔芯出し構造


    Contributors:

    Publication date :

    2022-05-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / E02F Baggern , DREDGING



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