PROBLEM TO BE SOLVED: To provide a pile driving machine capable of setting appropriate ground contact pressure in accordance with pile driving works.SOLUTION: A pile driving machine 100 comprises: hydraulic outrigger jacks 160 mounted on an anterior and a posterior portions of the pile driving machine 100; a hydraulic circuit 200 to operate the outrigger jacks 160; and a crawler. The pile driving machine 100 also has pressure switches 205 which detect an increase in internal pressure of the hydraulic circuit 200 in the hydraulic circuit 200 and an electric circuit 300 mounted on the outrigger jacks 160. The pile driving machine 100 stops hydraulic supply to the hydraulic circuit 200 when the pressure switches 205 detect that the internal pressure is not less than predetermined pressure.

    【課題】作業に応じた適切な接地圧を設定可能な杭打機の提供。【解決手段】杭打機100の前後に備える油圧式のアウトリガジャッキ160と、アウトリガジャッキ160を操作する為の油圧回路200と、クローラを有する杭打機100において、アウトリガジャッキ160に備える油圧回路200及び電気回路300に、油圧回路200の内圧上昇を感知する圧力スイッチ205を備え、圧力スイッチ205が所定の圧力以上となるのを検出した際に、油圧回路200への油圧供給を停止する。【選択図】図4


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    Title :

    PILE DRIVING MACHINE


    Additional title:

    杭打機


    Contributors:

    Publication date :

    2015-11-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / E02D FOUNDATIONS , Gründungen / E02F Baggern , DREDGING



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