发明名称 |
Bore resistance measuring apparatus including a drive unit and an attachment for a drill and or driving mechanism |
摘要 |
In a drill resistance measuring apparatus including a drive unit and an attachment for determining the internal state of trees or wooden structures by determining the torque required to drive a drill into the wood, means for plotting and storing the torque depending on the penetration depth of the drill are included in the drive unit attachment, which includes a coupling portion for coupling to the drive unit and a transmission mechanism exchangeably supported in the attachment to permit an exchange of the transmission mechanism for a change of the transmission ratio for operating the drill at various speeds.
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申请公布号 |
US6290437(B1) |
申请公布日期 |
2001.09.18 |
申请号 |
US19990421904 |
申请日期 |
1999.10.20 |
申请人 |
FORSCHUNGSZENTRUM KARLSRUHE GMBH |
发明人 |
MATTHECK CLAUS;HUNGER ERICH |
分类号 |
B25F3/00;G01N3/40;G01N3/58;G01N33/46;(IPC1-7):B23B41/00;G01N3/42 |
主分类号 |
B25F3/00 |
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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