发明名称 IMPROVED SCREWDRIVER FOR EXCAVATOR
摘要 PURPOSE: An auger screw assembly for an improved excavator is provided to easily control the length of an auger screw and to repair inside the auger screw without cutting and breaking the auger screw. CONSTITUTION: An auger screw assembly for an improved excavator comprises an antenna rod(110), an auger screw(120), and a joint(130). The joint is detachably attached on the bottom end of the auger screw to be disassembled. The joint separably couples the end of a guide pipe(131) in the auger screw to a fastening hole(135a).
申请公布号 KR20100092287(A) 申请公布日期 2010.08.20
申请号 KR20090011583 申请日期 2009.02.12
申请人 SAMON F,C,COM.;GWAK, HEE KYEONG 发明人 GWAK, HEE KYEONG
分类号 E21B17/02;E21B7/02;E21B17/22 主分类号 E21B17/02
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