| 摘要 |
PURPOSE:To permit the performance of safety operation for a pile driver by using a system in which a series of information concerning safety, e.g., an information of the inclined angle of the driver, an information of the load of a leader, an information of the excavating amount of an earth auger, etc., is exactly displayd for an operator. CONSTITUTION:In a pile driver 1, a leader 8 is supported by two expandible stays 7, an inclined angle detector 9 is provided to a pile driver body 2, and an inclined angle detector 10 and a load detector 15 are provided to the leader 8. In an operator room 11, an arithmetic controller 12 having a switch by which the type of hammer, the kind of counter weight, and the specification of pile are input and a displayer 13 on which safeness on the basis of detection by said angle detectors 9 and 10 and said load detector 15 and also of arithmetic control by said arithmetic controller 12 is displayed in the form of letters and values are provided. Also, by detecting the amount of passage of wire 19 through a pulley 20, the excavating amount of an earth auger 18 can also be displayed. |
