| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile driver which can switch between soil improvement specifications and steel-pipe burial specifications without increasing cost. SOLUTION: In this pile driver 1, a leader 15, which is journaled in a longitudinally oscillatable manner ahead of a vehicle body 12, is mounted in such a manner as to be capable of being brought down by a derricking cylinder 17 connected between the vehicle body 12 and the leader 15. The leader 15 is integrally provided with a supporting bracket 16 which has a plurality of pin holes 25 and 26 formed along the leader 15. The supporting pin 27 is inserted through the prescribed pin hole 25 or 26, and journaled to the vehicle body 12. COPYRIGHT: (C)2006,JPO&NCIPI
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