发明名称 |
BORING ELEMENT OF A GROUND BORING DEVICE |
摘要 |
A boring element of a ground boring device includes a housing having a receptacle, a transmitter arranged in the receptacle of the housing and supported in the receptacle for movement in a longitudinal-axial direction of the boring element, and a front buffer connecting the transmitter with the housing. The transmitter moves towards a rear in the receptacle as a result of a deformation of the front buffer, when a rear percussive impulse is applied to the boring element, without the transmitter coming directly into contact with another part of the boring element. |
申请公布号 |
EP2483522(A2) |
申请公布日期 |
2012.08.08 |
申请号 |
EP20100763607 |
申请日期 |
2010.09.24 |
申请人 |
TRACTO-TECHNIK GMBH & CO. KG |
发明人 |
PUETTMANN, FRANZ-JOSEF;GRASS, PETER;VOELKEL, GERHARD;RIEKES, ANDREAS;PRUTTI, FRANK |
分类号 |
E21B47/01;E21B7/04 |
主分类号 |
E21B47/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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