DE887631C - Masonry drill - Google Patents

Masonry drill

Info

Publication number
DE887631C
DE887631C DEK10040A DEK0010040A DE887631C DE 887631 C DE887631 C DE 887631C DE K10040 A DEK10040 A DE K10040A DE K0010040 A DEK0010040 A DE K0010040A DE 887631 C DE887631 C DE 887631C
Authority
DE
Germany
Prior art keywords
drill
drilling
masonry drill
stone
masonry
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
Application number
DEK10040A
Other languages
German (de)
Inventor
Alfred Kunkel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEK10040A priority Critical patent/DE887631C/en
Application granted granted Critical
Publication of DE887631C publication Critical patent/DE887631C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/44Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

Das Bohren von Stein, Mineralien,-Erzen, besonders von Mauerwerk macht mit den bekannten Bohrern Schwierigkeiten, Mühe und Verdruß, hauptsächlich, wenn es sich um frisch aufgeführtes oder altes Mauerwerk handelt; so fällt fast immer beim Durchkommen. des Bohrers durch die Wand ein Stück Putz heraus, wenn nicht gar der letzte Mauerstein mit herauskommt.The drilling of stone, minerals, ores, especially masonry makes Difficulty, trouble and annoyance with the known drills, mainly when it is freshly laid or old masonry; almost always falls like this in getting through. a bit of plaster through the wall, if not at all the last brick comes out.

Vorstehende Übelstände beseitigt der Erfindungsgegenstand. Dieser besteht aus einem Stahlstab A von der Länge des zu durchbohrenden Materials und einem Durchmesser D, welcher an einem Ende etwa auf 15 D Länge, 2 D Breite und % D Stärke flachgeschmiedet ist. Die Fläche B ist einige Windungen gegen die Bohrerdrehung, also bei rechtslaufenden Bohrern links gedreht. Der anschließende Teil C bleibt gerade und hat an den Seiten Schneidfasen. Das Ende C ist mit einer runden oder winkligen Auskehlung und ebenfalls mit Schneidfasen versehen, so daß die beiden äußeren Spitzen E, F als Schneiden dienen.The subject matter of the invention eliminates the above deficiencies. This consists of a steel rod A the length of the material to be drilled through and a diameter D, which is flat forged at one end to about 15 D length, 2 D width and% D thickness. The surface B is a few turns against the rotation of the drill, i.e. rotated to the left with clockwise drills. The adjoining part C remains straight and has cutting bevels on the sides. The end C is provided with a round or angled groove and also with cutting bevels, so that the two outer tips E, F serve as cutting edges.

Beim Bohren in Stein schaben die Schneidspitzen E, F kreisrunde Scheiben aus. Der feststehende Kern wird zerbröckelt. Das Gewinde B dient zur Führung und als Räumei. Der im Verhältnis zu den Schneiden E, F und dem Gewinderäumer B dünne Schaft A behindert die Drehbewegung des Bohrers selbst beim Durchbohren von meterdicken Wänden nicht, so daß ein Zurückziehen des Bohrers und Ausräumen des Bohrloches während des Bohrens kaum notwendig wird. Zur Betätigung der Drehbewegung genügt eine Handbohrmaschine, da die Bohrgeschwindigkeit und der Bohrdruck für Stein- und Mauerwerk keine große zu sein braucht. Auch die Abnutzung der Schneiden ist durch die federnde und elastische Anordnung des Bohrers gering.When drilling in stone, the cutting tips E, F scrape circular disks the end. The fixed core is crumbled. The thread B is used for guidance and as evacuation. The thin one in relation to the cutting edges E, F and the thread reamer B. Shank A hinders the rotary movement of the drill even when drilling meter thick Walls not, so that a withdrawal of the drill and clearing of the borehole during drilling is hardly necessary. A hand drill is sufficient to actuate the rotary movement, since the drilling speed and the drilling pressure for stone and masonry are not great needs to be. The cutting edge is also worn down by the resilient and elastic ones Arrangement of the drill small.

Claims (1)

PATENTANSPRUCH: Steinbohrer, dadurch gekennzeichnet, daß ein Stahlstab A an einem Ende auf etwa =5 D Länge, a D Breite und % D Stärke flachgeschmiedet und diese Fläche B gegen die Bohrerdrehung um einige Windungen verdreht ist, wobei das anschließende Stück C geradebleibt, welches vorn mit einer Auskehlung und mit den Schneidspitzen E,F versehen ist. " Angezogene Druckschriften: Deutsche Patentschriften Nr. 147 8o5, 364 873, 414 o98, 493 *86o.PATENT CLAIM: Stone drill, characterized in that a steel rod A is forged flat at one end to approximately = 5 D length, a D width and% D thickness and this surface B is twisted by a few turns against the rotation of the drill, the adjoining piece C remaining straight, which front with a groove and with the cutting tips E, F is provided. "Cited pamphlets: German Patent Specifications No. 147 805, 364 873, 414 098, 493 * 86o.
DEK10040A 1951-05-23 1951-05-23 Masonry drill Expired DE887631C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK10040A DE887631C (en) 1951-05-23 1951-05-23 Masonry drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK10040A DE887631C (en) 1951-05-23 1951-05-23 Masonry drill

Publications (1)

Publication Number Publication Date
DE887631C true DE887631C (en) 1953-08-24

Family

ID=7212698

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK10040A Expired DE887631C (en) 1951-05-23 1951-05-23 Masonry drill

Country Status (1)

Country Link
DE (1) DE887631C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361189A1 (en) * 1988-09-12 1990-04-04 Narex Praha, Statni Podnik Drilling tool with helical shaft
WO1998054435A1 (en) * 1997-05-30 1998-12-03 Hawera Probst Gmbh Drilling tool
WO1998054434A1 (en) * 1997-05-30 1998-12-03 Hawera Probst Gmbh Drilling tool, especially a rock drill

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE147805C (en) *
DE364873C (en) * 1922-12-04 Josef Schykowski Cutting edge attachment to auger bits
DE414098C (en) * 1924-01-15 1925-05-26 Bismarckhuette Production of pit drills
DE493860C (en) * 1930-03-12 Siemens Schuckertwerke Akt Ges Process for the production of drills with cutting carriers made of hard metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE147805C (en) *
DE364873C (en) * 1922-12-04 Josef Schykowski Cutting edge attachment to auger bits
DE493860C (en) * 1930-03-12 Siemens Schuckertwerke Akt Ges Process for the production of drills with cutting carriers made of hard metal
DE414098C (en) * 1924-01-15 1925-05-26 Bismarckhuette Production of pit drills

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361189A1 (en) * 1988-09-12 1990-04-04 Narex Praha, Statni Podnik Drilling tool with helical shaft
WO1998054435A1 (en) * 1997-05-30 1998-12-03 Hawera Probst Gmbh Drilling tool
WO1998054434A1 (en) * 1997-05-30 1998-12-03 Hawera Probst Gmbh Drilling tool, especially a rock drill
US6213232B1 (en) 1997-05-30 2001-04-10 Hawera Probst Gmbh Drilling tool helical shank formed from a polygonal profile bar
CN1094169C (en) * 1997-05-30 2002-11-13 豪沃拉普鲁布斯特有限公司 Drilling tool, especially rock drill

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