The exact piling capable pile driver or pile ship of light use

摘要

An object of the present invention or Da to pile the exact pouring position, etc. or Da to pile the exact height, to provide accurate piling capable pile driver or pile ship of light use. The A leader mast cylinder device 2 which is provided continuously to the chuck apparatus 1 can grasp the pile P, as well as upright a photodetection device 4 capable of receiving light, a level 7 that can detect the level to emit light constitute a pile driver or pile ship S by. Even in the leader mast cylinder device 2 simply erected the photodetection device 4 capable of receiving light, also may only to emit light to a level 7 that can detect the level. The light-receiving device 4, erected a total of two in each of the upper end of the two leader mast cylinder device 2. .BACKGROUND