GB1261776A - A drill bit adapter for a hammer drill - Google Patents
A drill bit adapter for a hammer drillInfo
- Publication number
- GB1261776A GB1261776A GB57325/69A GB5732569A GB1261776A GB 1261776 A GB1261776 A GB 1261776A GB 57325/69 A GB57325/69 A GB 57325/69A GB 5732569 A GB5732569 A GB 5732569A GB 1261776 A GB1261776 A GB 1261776A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- drill
- bit
- threaded
- drill bit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 230000004323 axial length Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
-
- 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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/75—Stone, rock or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
1,261,776. Drill bits. HILTI A.G. 24 Nov., 1969 [2 Dec., 1968], No. 57325/69. Heading B4C. [Also in Division B3] An adapter permitting attachment to a hammer drill of a variety of drill bits comprises a shank 4a adapted to be received in a tool socket 2 of the drill, and a blind bore 4c, having a threaded wall, for receiving the threaded end of a drill bit. The profile of the threaded wall on a section taken longitudinally of the bore is in the form of an undulating and continuously curved contour. A drill bit having a threaded end shorter in axial length than the depth of the bore and having an effective diameter greater than that of the bore (Fig. 2, not shown) will be provided with a shoulder adapted in use to abut against the end surface 8b of the adapter. As illustrated the drill bit has an effective diameter less than that of the bore and the base of the bore and the end surface of the drill bit are planar and abut. The threaded portion of the bore may have one or more longitudinal grooves and the threaded end of the bit may be complementarily formed so that the bit and adapter can be attached with a bayonet type action. The bit and the bore may each be provided with a multi-start thread.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681812229 DE1812229A1 (en) | 1968-12-02 | 1968-12-02 | Drill or drill holder for hammer drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1261776A true GB1261776A (en) | 1972-01-26 |
Family
ID=5714983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB57325/69A Expired GB1261776A (en) | 1968-12-02 | 1969-11-24 | A drill bit adapter for a hammer drill |
Country Status (6)
Country | Link |
---|---|
US (1) | US3690390A (en) |
CH (1) | CH507067A (en) |
DE (1) | DE1812229A1 (en) |
FR (1) | FR2024992A1 (en) |
GB (1) | GB1261776A (en) |
SE (1) | SE386394B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2314287A (en) * | 1996-06-19 | 1997-12-24 | John Terrance Crilly | Power tool with a fitment |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2419548C2 (en) * | 1974-04-23 | 1983-05-05 | Hawera Probst Gmbh + Co, 7980 Ravensburg | Drilling tool for rotary hammers |
DE2440082C3 (en) * | 1974-08-19 | 1982-02-25 | Durofac-Kartro A/S, Valby | Hammer drill device |
US4007795A (en) * | 1976-02-13 | 1977-02-15 | Skil Corporation | Attachment for a rotary-hammer tool |
DK56178A (en) * | 1978-02-07 | 1979-08-08 | M B Nielsen | METHOD AND TOOLS FOR USE WHEN DRILLING A HOLE IN REINFORCED CONCRETE |
FI108006B (en) * | 1994-08-09 | 2001-11-15 | Sandvik Tamrock Oy | Penetration tool tool |
DE19740277B4 (en) * | 1997-09-13 | 2012-05-24 | Robert Bosch Gmbh | drilling |
US5979913A (en) * | 1998-05-19 | 1999-11-09 | Kosik; Thomas | Universal driving and setting tool and method of using same |
DE10117262A1 (en) * | 2001-01-17 | 2002-07-18 | Hilti Ag | Rock drill has head with main and subsidiary blades, curved and diametrically opposite cutting edges, and point |
US20160059322A1 (en) * | 2014-08-29 | 2016-03-03 | Seth Breslaw | Second stage drill bit |
US20180001395A1 (en) * | 2016-06-30 | 2018-01-04 | Shehkai Precision Co., Ltd. | Dust vacuuming drill device with an internal dust passageway and method for producing the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2868507A (en) * | 1954-07-26 | 1959-01-13 | American Percussion Tool Compa | Well drilling equipment |
US2873093A (en) * | 1956-09-19 | 1959-02-10 | Jersey Prod Res Co | Combined rotary and percussion drilling apparatus |
US3050032A (en) * | 1960-12-30 | 1962-08-21 | Carey Machine & Supply Inc | Percussion-type drill |
-
1968
- 1968-12-02 DE DE19681812229 patent/DE1812229A1/en active Pending
-
1969
- 1969-11-20 CH CH1731269A patent/CH507067A/en not_active IP Right Cessation
- 1969-11-24 GB GB57325/69A patent/GB1261776A/en not_active Expired
- 1969-11-26 FR FR6940784A patent/FR2024992A1/fr not_active Withdrawn
- 1969-11-28 US US880748A patent/US3690390A/en not_active Expired - Lifetime
- 1969-12-01 SE SE6916502A patent/SE386394B/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2314287A (en) * | 1996-06-19 | 1997-12-24 | John Terrance Crilly | Power tool with a fitment |
GB2314287B (en) * | 1996-06-19 | 2001-01-10 | John Terrance Crilly | Hand held power tools |
Also Published As
Publication number | Publication date |
---|---|
DE1812229A1 (en) | 1971-01-14 |
CH507067A (en) | 1971-05-15 |
SE386394B (en) | 1976-08-09 |
FR2024992A1 (en) | 1970-09-04 |
US3690390A (en) | 1972-09-12 |
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