| 摘要 |
PROBLEM TO BE SOLVED: To provide a smooth operation by maintaining horizontality of an upper turntable body to a slope of a road surface in a full turning range of 360°. SOLUTION: Above a lower self-propelling body, a right/left oscillation table is supported by supporting shaft parts at the front and rear of a self-propelled body, and right and left tilt jacks are arranged in a truncated chevron shape to oscillate the right/left oscillation table in right and left directions. Above the right/left oscillation table, a front/rear oscillation turning table is supported by supporting shafts at the right and left of the right/left oscillation table, and front/rear tilt jacks are arranged in a truncated chevron shape to oscillate the front/rear oscillation turning table in front and rear directions. An operation of a total of four tilt cylinders at the front/rear and the right/left makes maintenance of horizontality possible in full turning, irrespective of tilt of the lower self-propelling body under turning of a body by 360°. Thus a road surface leveling operation on an inclined land, continuously moving operation for slope forming or excavation for an inclined road, under turning by 90°, foundation excavation for flooring or the like, may be carried out surely. COPYRIGHT: (C)2004,JPO
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