| 摘要 |
PROBLEM TO BE SOLVED: To provide a carrying device for easily carrying excavated material without generating clogging nor adhesion even in the case of excavating viscous material. SOLUTION: Three screw augers respectively provided with a spiral fin in a rotary shaft thereof are arranged in parallel with each other with an equal angular interval, and positioned so that peripheral edges of the spiral fins of adjacent screw augers are overlapped with each other. The viscous material is easily pushed out for carrying by synchronously rotating each screw auger at the same speed in the same direction. COPYRIGHT: (C)2004,JPO
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