FI931022A - Arborrsledare - Google Patents

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Publication number
FI931022A
FI931022A FI931022A FI931022A FI931022A FI 931022 A FI931022 A FI 931022A FI 931022 A FI931022 A FI 931022A FI 931022 A FI931022 A FI 931022A FI 931022 A FI931022 A FI 931022A
Authority
FI
Finland
Prior art keywords
support
wall
drill
pilot hole
rock
Prior art date
Application number
FI931022A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI931022A0 (en
FI93257B (en
FI93257C (en
Inventor
Aulis Luukkanen
Original Assignee
Aulis Luukkanen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aulis Luukkanen filed Critical Aulis Luukkanen
Priority to FI931022A priority Critical patent/FI93257C/en
Publication of FI931022A0 publication Critical patent/FI931022A0/en
Priority to FI935435A priority patent/FI95619C/en
Publication of FI931022A publication Critical patent/FI931022A/en
Publication of FI93257B publication Critical patent/FI93257B/en
Application granted granted Critical
Publication of FI93257C publication Critical patent/FI93257C/en

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  • Earth Drilling (AREA)

Abstract

Boring guide for drilling a slot in a rock, the drilling arrangement being used to drill pilot holes 1 in a row in the rock at a distance from one another, and the neck 2 between the holes being drilled to form a slot by means of the boring guide 6 which comprises a drill-rod support sleeve 7 and, fastened thereto, a drill support 8 resting adjacent to the neck which is to be removed on the pilot hole. The drill support comprises an essentially uniform elongate wall support 9 which bears against the wall of the pilot hole and is essentially semi-circular in cross section, a counter-support 10 bearing against the surface of the wall of the pilot hole opposite the wall support, and guiding and holding means 13 in the wall support for pressing the wall support against the wall of the pilot hole. <IMAGE>
FI931022A 1993-03-08 1993-03-08 Arborrsledare FI93257C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI931022A FI93257C (en) 1993-03-08 1993-03-08 Arborrsledare
FI935435A FI95619C (en) 1993-03-08 1993-12-03 Avarrusohjuri

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI931022A FI93257C (en) 1993-03-08 1993-03-08 Arborrsledare
FI931022 1993-03-08

Publications (4)

Publication Number Publication Date
FI931022A0 FI931022A0 (en) 1993-03-08
FI931022A true FI931022A (en) 1994-09-09
FI93257B FI93257B (en) 1994-11-30
FI93257C FI93257C (en) 1995-03-10

Family

ID=8537513

Family Applications (1)

Application Number Title Priority Date Filing Date
FI931022A FI93257C (en) 1993-03-08 1993-03-08 Arborrsledare

Country Status (1)

Country Link
FI (1) FI93257C (en)

Also Published As

Publication number Publication date
FI931022A0 (en) 1993-03-08
FI93257B (en) 1994-11-30
FI93257C (en) 1995-03-10

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Legal Events

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BB Publication of examined application
MA Patent expired