Title:
寸法石の切出し方法および列掘削装置
Document Type and Number:
Japanese Patent JP5022489
Kind Code:
B2
Abstract:
A method of quarrying dimensional stone and a line drilling apparatus used therein. The drilling apparatus is frameless and comprises a first boom and a second boom, between which is arranged a joint mechanism, allowing the booms to be moved relative to each other. Furthermore, in connection with the joint mechanism is arranged a stone support adaptable against the stone once the drilling apparatus is coarse-positioned in the vicinity of a drill hole line. Fine positioning of the drilling apparatus in the direction of the drill hole line is performed by joints comprised by the joint mechanism. Positioning at drill holes takes place by turning the second boom along an arched motion path and by turning the drilling unit towards the stone to be drilled.
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Inventors:
Lahadelma, Ilkka
Application Number:
JP2010510840A
Publication Date:
September 12, 2012
Filing Date:
June 04, 2008
Export Citation:
Assignee:
SANDVIK MINING AND CONSTRUCTION OY
International Classes:
E21B15/00; E21B44/00
Domestic Patent References:
| JP6501755A | ||||
| JP10082269A | ||||
| JP4001292U |
Foreign References:
| US6076615 |
Attorney, Agent or Firm:
Takao Katori