PILE DRIVER
To provide a pile driver which, in spite of its compact structure, is equipped with an auger that maintains stable posture in a component state and can improve transportability.SOLUTION: A removable auger 33 that moves up and down along the front of a reader has a rotary drive device 35 that inserts...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a pile driver which, in spite of its compact structure, is equipped with an auger that maintains stable posture in a component state and can improve transportability.SOLUTION: A removable auger 33 that moves up and down along the front of a reader has a rotary drive device 35 that inserts a drive rod so that it can rotate and move in the axial direction, an elevating drive device 36 that supports the rotary drive device 35 in a cantilever manner, and a chuck mechanism 37 provided at the bottom of the rotary drive device 35 that regulates the axial movement of the drive rod. On the rotary drive device 35 is provided a pair of right and left guard members 38 which extend vertically downward from the outer edge of the lower surface of the gear case 35a with a built-in speed reducer and whose lower end is located below the lower end of the chuck mechanism 37.SELECTED DRAWING: Figure 4
【課題】コンパクトな構成でありながら、部品状態で安定した姿勢が維持され、輸送性の向上を図ることが可能なオーガを備えた杭打機を提供する。【解決手段】リーダの前面に沿って昇降する着脱可能なオーガ33は、ドライブロッドを回転可能かつ軸方向に移動可能に挿通する回転駆動装置35と、該回転駆動装置35を片持ち支持する昇降駆動装置36と、回転駆動装置35の下部に設けられ、ドライブロッドの軸方向の移動を規制するチャック機構37とを有し、回転駆動装置35には、減速機を内蔵したギヤケース35aの下面外縁部から鉛直下方に延びるとともに、その下端がチャック機構37の下端に対して下方に位置された左右一対のガード部材38を備えている。【選択図】図4 |
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