SE7905401L - DRILLING TOOL FOR WORKING MACHINERY - Google Patents
DRILLING TOOL FOR WORKING MACHINERYInfo
- Publication number
- SE7905401L SE7905401L SE7905401A SE7905401A SE7905401L SE 7905401 L SE7905401 L SE 7905401L SE 7905401 A SE7905401 A SE 7905401A SE 7905401 A SE7905401 A SE 7905401A SE 7905401 L SE7905401 L SE 7905401L
- Authority
- SE
- Sweden
- Prior art keywords
- cavity
- hole
- drilling tool
- rock
- directed towards
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
- 239000011435 rock Substances 0.000 abstract 2
- 238000009527 percussion Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a percussion drill, preferably for an automatic machine for driving holes in rock, comprising a body 7, 16, 22 with, firstly, a cavity 8, 15, 25 opening out at the end surface of the body directed towards the bottom of the hole which is to be driven, secondly, a part 9 intended for breaking up the bottom of the hole and having a ring-shaped cutting edge 10, 19 with a conical inside 11, and, thirdly, channels 12, 24 connecting the cavity to the driven hole, for removal of the broken-up rock from the cavity, and it is characterized in that the cavity 8, 15, 25 has the shape of a cone whose base surface is directed towards the hole bottom and whose inner side is smooth. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7905401A SE429887B (en) | 1979-06-19 | 1979-06-19 | Percussion drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7905401A SE429887B (en) | 1979-06-19 | 1979-06-19 | Percussion drill |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7905401L true SE7905401L (en) | 1980-12-20 |
SE429887B SE429887B (en) | 1983-10-03 |
Family
ID=20338329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7905401A SE429887B (en) | 1979-06-19 | 1979-06-19 | Percussion drill |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE429887B (en) |
-
1979
- 1979-06-19 SE SE7905401A patent/SE429887B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE429887B (en) | 1983-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR900013172A (en) | Drill bit | |
DE3863641D1 (en) | TOOL HOLDER FOR DRILLING AND CHISEL DEVICES AND TOOLS. | |
DE68920581D1 (en) | CUTTING TOOL. | |
US4397362A (en) | Drilling head | |
SE8101422L (en) | JUMPER | |
US4369034A (en) | Device for preventing the ingress of water into the head of a dental contra-angle | |
DE58901461D1 (en) | HOLLOW DRILLING TOOL. | |
HU204218B (en) | Drilling equipment for making holes having back-cut | |
DE3365208D1 (en) | Drilling device | |
US2028580A (en) | Suction nozzle | |
SE7905401L (en) | DRILLING TOOL FOR WORKING MACHINERY | |
US5538370A (en) | Device for drilling a square hole | |
JPS5919803B2 (en) | Percussion drilling device for forming a drilling section with a back cut section | |
FI954849A (en) | An annular drill bit on a hollow cylindrical carrier base | |
ES2023518B3 (en) | MILLING TOOL. | |
US5197833A (en) | Drill tool for making a drilled hole with an undercut | |
USD266521S (en) | Shank adapter for a rock drilling machine | |
DE59000812D1 (en) | DEVICE FOR PRODUCING AN UNDERCUT IN A DRILL HOLE. | |
US2164886A (en) | Water tube for rock drills | |
EP0321673A3 (en) | Drill | |
JPH01280195A (en) | Bit for boring | |
ATE15249T1 (en) | BUTTON-SHAPED HARD MATERIAL INSERT FOR DRILL BITS. | |
Feifer | Drilling micro-size deep holes | |
SE7904935L (en) | DRILLING TOOL FOR WORKING MACHINERY | |
SE8302376D0 (en) | A ROTARY / PERCUSSIVE DRILL ASSEMBLY |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7905401-1 Effective date: 19910131 Format of ref document f/p: F |