Title:
管要素を給送するための装置、削岩リグ、およびドリル孔開口を支持する方法
Document Type and Number:
Japanese Patent JP7398256
Kind Code:
B2
Abstract:
An apparatus for feeding a tubular object inside a drill hole, a rock drilling rig and a method of supporting mouth openings of drill holes. The apparatus (8) comprises a support device (SD) for supporting an elongated tube element blank (25) comprising potential for several successive tube inserts (14). A front end of the tube element blank is moved longitudinally inside a drill hole (9) by means of a feeding device (26). Thereby the drill hole is provided with a protective section extending a limited longitudinal dimension towards a bottom of the drill hole. The apparatus further comprises a separation device (S) for detaching the mentioned tube inserts one by one from the tube element blank.
Inventors:
Pipponen, Juha
Velivaara, Johannes
Velivaara, Johannes
Application Number:
JP2019218519A
Publication Date:
December 14, 2023
Filing Date:
December 03, 2019
Export Citation:
Assignee:
Sandvik Mining and Construction Owai
International Classes:
E21B23/00
Domestic Patent References:
| JP10292762A | ||||
| JP9303075A | ||||
| JP2002541370A |
Foreign References:
| WO2013098459A1 |
Attorney, Agent or Firm:
Sonoda & Kobayashi Patent Attorneys Corporation