To provide a mounting structure of a boom derricking position detector capable of detecting that the boom is in a predetermined derricking position with a structure arranged in a space-saving manner.SOLUTION: A clevis 52 corresponding to the other end of a cylinder for a boom derricking is rotatably attached to a column 20 with the central axis of a base end side support pin 30 as a rotation axis. A boom derricking position detector to detect that the boom is in a predetermined derricking position has a proximity sensor 10 that is attached to the column 20 and detects the position relative to a detection target and a detected body 11 that is attached to the clevis 52 and is a detected target by the proximity sensor 10. A detecting direction vector to detect the detected body 11 by the proximity sensor 10 forms the vector that intersects at right angles to the axis line of the central axis of the base end side support pin 30. The detected body 11 moves to the inside of or to the outside of the operating range of the proximity sensor 10 according to the rotation of the cylinder 50 for boom derricking.SELECTED DRAWING: Figure 7
【課題】省スペースに配置した構成でブームが所定の起伏位置にあることを検出することが可能な、ブーム起伏位置検出装置の取付構造を提供する。【解決手段】ブーム起伏用シリンダの他端部に対応するクレビス52は、基端側支持ピン30の中心軸を回転軸として回転が可能にコラム20へ取り付けられ、ブームが所定の起伏位置にあることを検出するブーム起伏位置検出装置は、コラム20に取り付けられ、且つ検出対象との相対位置を検出する近接センサ10と、クレビス52に取り付けられ、且つ近接センサ10の検出対象である被検出体11を備え、近接センサ10が被検出体11を検出する検出方向のベクトルは、基端側支持ピン30の中心軸の軸線に対して直角に交わるベクトルを形成し、被検出体11は、ブーム起伏用シリンダ50の回転に応じて近接センサ10の動作範囲内又は動作範囲外へ移動する。【選択図】図7
MOUNTING STRUCTURE OF BOOM DERRICKING POSITION DETECTOR
ブーム起伏位置検出装置の取付構造
2021-09-24
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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