| 发明名称 |
CUTTER HEAD FOR SHIELD MACHINE AND SHIELD MACHINE USING THE SAME |
| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily replaceable cutter head and never causing a back wear in a cutting bit, and a shield machine having the cutter head. SOLUTION: In the cutter head 3 to be set in the front end part of a shield machine, cutting bits 15 and 17 having two-way machinability are mounted on the side surfaces of cutter spokes 13 provided radially from the center part thereof. |
| 申请公布号 |
JP2002349191(A) |
申请公布日期 |
2002.12.04 |
| 申请号 |
JP20010153810 |
申请日期 |
2001.05.23 |
| 申请人 |
NKK CORP;PENTA OCEAN CONSTR CO LTD |
发明人 |
NISHIBUCHI MASAYUKI;KOBAYASHI AKIRA;SAEKI HIROSHI;INADA TORU;NAKAYAMA TAMOTSU;SATO SHIN;AMINO IWAO |
| 分类号 |
E21D9/087;E21D9/08;(IPC1-7):E21D9/08 |
主分类号 |
E21D9/087 |
| 代理机构 |
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代理人 |
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