发明名称 Excavation Tool
摘要 Provided is an excavation tool which can firmly fix a locking pin so that the locking pin does not move even in the case of an impact during excavation and/or the locking pin being pushed out in the insertion/removal direction. The excavation tool (10) includes a tool body (20) having an attaching hole (32) and an attaching member (40). The attaching member (40) is provided with an attaching shaft (45) inserted into the attaching hole (32), and the outer peripheral surface of the attaching shaft (45) is provided with a groove (46) which crosses the extension direction of the attaching shaft (45). The tool body (40) is provided with a pin hole (33) extending in a direction crossing the extension direction of the attaching hole (32). A part of the pin hole (33) passes through the attaching hole (32). A locking pin (56), which can engage with the groove (46) of the attaching shaft (45) inserted into the attaching hole (32), is inserted into the pin hole (33). An opening of the pin hole (33) is provided with a fixing member (50) which is a rigid body and abuts on the end face of the locking pin (56) to fix the locking pin, and a locking portion (57) which locks the fixing member (50) in the extension direction of the pin hole (33) to fix the fixing member.
申请公布号 US2010236831(A1) 申请公布日期 2010.09.23
申请号 US20080733064 申请日期 2008.07.28
申请人 MITSUBISHI MATERIALS CORPORATION 发明人 NAKAMURA KAZUYOSHI
分类号 E21B10/32 主分类号 E21B10/32
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