Pipe rammer |
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| 申请号 | JP30586088 | 申请日 | 1988-12-02 | 公开(公告)号 | JPH01207595A | 公开(公告)日 | 1989-08-21 |
| 申请人 | Schmidt Paul; | 发明人 | ARUFUONSU HETSUSE; | ||||
| 摘要 | PURPOSE: To reduce the cost of mechanical section by connecting a rear end section provided with a socket for a rammer to the rear end of an advancing pipe, viewed in the direction of advance without gap. CONSTITUTION: A rammer 3 is arranged in an advancing pipe 2 having a cutting shoe 1 in a front end section, and a conic impact point section 4 is arranged in a support ring 5. A socket 6 tapered in the direction of the conic impact point section 4 and a connecting part 7 as a rammer drill fitted in the socket 6 are provided in the rear end section of the rammer 3. A guide pipe 2b is supported on a floor frame 12 by the supports roller 11 on a base seat 10 at the start point of the indication of a start hole 9, and the rear end of the rammer and the rear end of the guide pipe 2b viewed in the direction of advance are connected to each other without gap by the socket 6 and the rammer drill 7. By this constitution, the cost of mechanical section can be reduced. COPYRIGHT: (C)1989,JPO |
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