Geological sample picking device |
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| 申请号 | JP19991483 | 申请日 | 1983-10-27 | 公开(公告)号 | JPS6093331A | 公开(公告)日 | 1985-05-25 |
| 申请人 | Chuo Kaihatsu Kk; | 发明人 | TOBE KANEO; | ||||
| 摘要 | PURPOSE:To pick surely samples of good quality which hold the natural state, by providing a stopping part, which stops rotation of an inside tube rod, in the upper end part of the inside tube rod supported in an outside tube. CONSTITUTION:A bar-shaped stopping part body 21 is provided in the projecting upper end part of an inside tube rod 4 which is supported axially in a cylindrical outside tube head 2 freely ritatably through bearings 5-7. Both ends of the stopping part body 21 are fitted to recessed parts 22' of a guide rod 22 stood on a boring machine body so that they can be slided freely in the vertical direction but cannot be turned horizontally. Even if slime and stone fragments are closed in the gap between an outside tube 9 and an inside tube 12 to transmit the rotative force of the outside tube 9 to the inside tube 12 while a core is picked, rotation of the inside tube 12 is stopped through the inside tube rod 4 by the stopping part body 21. The rotation state of the inside tube is detected through a strain gauge 23, and a proper step can be taken on the ground. Consequently, samples of good quality which hold the natural state are picked surely. | ||||||
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| 说明书全文 | |||||||
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