发明名称 DEPOSIT REMOVING DEVICE FOR FRONT ATTACHMENT
摘要 PROBLEM TO BE SOLVED: To provide a device having a sufficient removing function for removing deposits such as sediment stuck to a front attachment drilling the ground by a rotating action. SOLUTION: A plurality of lines of elastic rod-like bodies 5 are protruded along the direction of a rotary shaft 32 on the drum 6 of this removing device 1. When an auger screw 3 is lifted while being rotated in the extracting direction B in the inserted state into the screw through hole 11 of a base section 9, the elastic rod-like bodies 5 are pressed by screw blades 3B, and the drum 6 is rotated in the direction of an arrow C. The elastic rod-like bodies 5 are located between the screw blades 3B at this time and comb off the sediment stuck to the auger screw 3.
申请公布号 JP2001082065(A) 申请公布日期 2001.03.27
申请号 JP20000210505 申请日期 2000.07.11
申请人 TOKAI CONCRETE INDUSTRIES CO LTD;ITO YOSETSU KOGYO KK 发明人 KAWABE KOJIRO;ITO SHOJI
分类号 E21B12/06;(IPC1-7):E21B12/06 主分类号 E21B12/06
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