DE1100257B - Drill bits for the production of dowel holes in concrete, masonry or the like. - Google Patents

Drill bits for the production of dowel holes in concrete, masonry or the like.

Info

Publication number
DE1100257B
DE1100257B DEF28402A DEF0028402A DE1100257B DE 1100257 B DE1100257 B DE 1100257B DE F28402 A DEF28402 A DE F28402A DE F0028402 A DEF0028402 A DE F0028402A DE 1100257 B DE1100257 B DE 1100257B
Authority
DE
Germany
Prior art keywords
drill bit
leg
masonry
concrete
production
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.)
Pending
Application number
DEF28402A
Other languages
German (de)
Inventor
Arthur Fischer
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.)
ARTUR FISCHER
Original Assignee
ARTUR FISCHER
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 ARTUR FISCHER filed Critical ARTUR FISCHER
Priority to DEF28402A priority Critical patent/DE1100257B/en
Priority to CH473460A priority patent/CH378027A/en
Priority to BE590565A priority patent/BE590565A/en
Priority to US27738A priority patent/US3208542A/en
Priority to GB16323/60A priority patent/GB954020A/en
Priority to GB25904/63A priority patent/GB955410A/en
Publication of DE1100257B publication Critical patent/DE1100257B/en
Priority to NL6406203A priority patent/NL6406203A/xx
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/002—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose self-cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/895—Having axial, core-receiving central portion

Description

Bohrmeißel für die Herstellung von Dübellöchern in Beton, Mauerwerk od. dgl. Die Erfindung betrifft einen rohrförmigen Bohrmeißel für die Herstellung von Dübellöchern in Beton, Mauerwerk od. dgl.Drill bits for making dowel holes in concrete, masonry The invention relates to a tubular drill bit for manufacture of dowel holes in concrete, masonry or the like.

Bohrmeißel sind in vielen Ausführungen bereits bekannt. Es sind auch solche Bohrmeißel bekannt, die einen rohrförmigen Querschnitt haben, durch den das Bohrmehl abfließen kann. Diese Bohrmeißel werden entweder in das Futter einer Bohrmaschine eingespannt oder in eine Haltevorrichtung eingesetzt. Beim Schlagen eines Dübelloches dient die Haltevorrichtung als Handgriff, der dauernd leicht hin- und hergedreht wird, während gleichzeitig auf das hintere Ende der Haltevorrichtung Hammerschläge ausgeübt werden.Many types of drill bits are already known. There are too such drill bits are known which have a tubular cross-section through which the Drill dust can flow off. These bits are either in the chuck of a drill clamped or inserted into a holding device. When hitting a dowel hole the holding device serves as a handle that is constantly being turned slightly back and forth while simultaneously hammering the rear end of the holding device be exercised.

Die bekannten Bohrmeißel sind in der Herstellung verhältnismäßig teuer und unterliegen wie alle Steinbohrer einem sehr hohen Verschleiß. Wenn nämlich die Bohrerschneide abgenutzt ist, muß sie entweder nachgearbeitet werden, oder es muß ein neuer Bohrer verwendet werden. In der Regel wird ein neuer Bohrer genommen, wenn die Schneide des bisher verwendeten Bohrers abgenutzt ist.The known drill bits are relatively expensive to manufacture and, like all masonry drills, are subject to very high levels of wear. If the If the drill bit is worn, it must either be reworked or it must a new drill bit can be used. Usually a new drill is taken, when the cutting edge of the previously used drill is worn.

Der Erfindung liegt die Aufgabe zugrunde, einen Bohrmeißel zu schaffen, der so einfach und billig in der Herstellung ist, daß er nach Abnutzung seiner Schneide unbedenklich weggeworfen werden kann. Meistens müssen in einem Haushalt nur wenige Dübellöcher hergestellt werden, wofür sich der Kauf eines teuren Bohrmeißels mit der dazugehörigen Haltevorrichtung nicht lohnt. Für diesen Zweck ist der Bohrmeißel nach der Erfindung in erster Linie bestimmt. Erfindungsgemäß ist der Bohrmeißel aus einem ebenen Stück Blech gebildet, welches bei gleichzeitiger Fertigung der Bohrerschneide aus einer größeren Platte ausgestanzt und durch Einrollen zu einem Rohr geformt ist. Das Blech wird vorteilhaft nur so weit eingerollt, daß im Rohr ein schmaler, durchgehender Längsschlitz offen bleibt, durch den beim Schlagen eines Dübelloches das anfallende Bohrmehl fortlaufend herausfällt. Eine besonders zweckmäßige Ausführungsform der Erfindung besteht darin, daß das ebene Blechstück die Form eines großen lateinischen L hat, wobei der eine Schenkel des L, der keine Schneide aufweist, nach dem Einrollen des anderen Schenkels als Haltevorrichtung beim Schlagen eines Dübelloches dient. Der als Haltevorrichtung dienende Schenkel kann an seinem freien Ende vorteilhaft als Schraubenzieher ausgebildet sein. Dadurch kann der Bohrmeißel nach dem Einsetzen des Dübels in das gerade hergestellte Dübelloch gleichzeitig als Schraubenzieher zum Eindrehen einer Befestigungsschraube in den Dübel verwendet werden.The invention has for its object to provide a drill bit, which is so simple and cheap to manufacture that after its cutting edge is worn it will can be safely thrown away. Usually only a few have to work in a household Dowel holes are made, which involves buying an expensive drill bit the associated holding device is not worth it. For this purpose is the drill bit primarily determined according to the invention. According to the invention is the drill bit formed from a flat piece of sheet metal, which with simultaneous manufacture of the Drill cutting edge punched out of a larger plate and rolled into one Tube is shaped. The sheet is advantageously only rolled so far that in the tube a narrow, continuous longitudinal slot remains open through which a Dowel hole, the drilling dust continuously falls out. A particularly useful one Embodiment of the invention is that the flat piece of sheet metal has the shape of a has a capital L in Latin, the one leg of the L that has no cutting edge, after rolling in the other leg as a holding device when hitting one Dowel hole is used. The leg serving as a holding device can on its free The end can advantageously be designed as a screwdriver. This allows the drill bit at the same time after inserting the dowel into the dowel hole just made used as a screwdriver to screw a fastening screw into the dowel will.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. Es zeigt Abb. 1 in Seitenansicht einen aus einer Stahlplatte gebildeten Bohrmeißel mit ausgestanzter Schneide vor dem Einrollen zu der Rohrform Abb.2 den fertigen Bohrmeißel in der Draufsicht und Abb. 3 den Bohrmeißel in Seitenansicht.The drawing shows an exemplary embodiment of the subject matter of the invention shown. It shows Fig. 1 in side view one formed from a steel plate Drill bit with punched out cutting edge before rolling into the pipe shape Fig.2 finished drill bit in plan view and Fig. 3 the drill bit in side view.

Wie aus Abb. 1 ersichtlich ist, wird für die Herstellung des Bohrmeißels nach der Erfindung ein ebenes Stück Blech verwendet, das zweckmäßig die Form eines großen lateinischen L hat. Beim Ausstanzen des Blechstückes aus eurer größeren Stahlplatte od. dgl. wird die Bohrerschneide 3 des Schenkels 1 gleich mit ausgestanzt. Der Schenkel 2 ist an seinem freien Ende als Schraubenzieher ausgebildet.As can be seen from Fig. 1, for the manufacture of the drill bit According to the invention, a flat piece of sheet metal used, which is expediently the shape of a has capital Latin L. When punching out the sheet metal piece from your larger steel plate or the like, the drill bit 3 of the leg 1 is punched out at the same time. The thigh 2 is designed as a screwdriver at its free end.

Nach Abb. 2 und 3 ist der Schenkel 1 des Bohrmeißels so weit eingerollt, daß ein schmaler Längsschlitz 5 offen bleibt, aus dem das anfallende Bohrmehl beim Herstellen eines Dübelloches fortlaufend herausfällt. Der Schenkel 2 dient als Haltevorrichtung.According to Fig. 2 and 3, the leg 1 of the drill bit is rolled in so far that that a narrow longitudinal slot 5 remains open, from which the resulting drill dust when Making a dowel hole falls out continuously. The leg 2 serves as a holding device.

Claims (1)

PATENTANSPRÜCHE: 1. Rohrförmiger Bohrmeißel für die Herstellung von Dübellöchern in Beton, Mauerwerk od. dgl., dadurch gekennzeichnet, daß der Bohrer aus einem ebenen Stück Blech (1, 2) gebildet ist, welches bei gleichzeitiger Fertigung der Bohrerschneide (3) aus einer größeren Platte ausgestanzt und durch Einrollen zu einem Rohr (4) geformt ist. z. Bohrmeißel nach Anspruch 1, dadurch gekennzeichnet, daß das Blech (1) nur so weit eingerollt ist, daß im Rohr (4) ein schmaler, durchgehender Längsschlitz (5) offen bleibt. 3. Bohrmeißel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das ebene Blechstück (1, 2) die Form eines großen lateinischen L hat, wobei der eine Schenkel (2) des L, der keine Schneide (3) aufweist, nach dem Einrollen des anderen Schenkels (1) als Haltevorrichtung beim Schlagen eines Dübelloches dient. 4. Bohrmeißel nach Anspruch 3, dadurch gekennzeichnet, daß der als Haltevorrichtung dienende Schenkel (2) an seinem freien Ende (6) als Schraubenzieher ausgebildet ist. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 534 809. PATENT CLAIMS: 1. Tubular drill bit for the production of dowel holes in concrete, masonry od larger plate is punched out and formed by rolling into a tube (4). z. Drill bit according to Claim 1, characterized in that the sheet metal (1) is only rolled so far that a narrow, continuous longitudinal slot (5) remains open in the tube (4). 3. Drill bit according to claim 1 or 2, characterized in that the flat sheet metal piece (1, 2) has the shape of a large Latin L, wherein the one leg (2) of the L, which has no cutting edge (3), after rolling the other leg (1) serves as a holding device when hitting a dowel hole. 4. Drill bit according to claim 3, characterized in that the leg (2) serving as a holding device is designed as a screwdriver at its free end (6). References considered: U.S. Patent No. 2,534,809.
DEF28402A 1959-05-08 1959-05-08 Drill bits for the production of dowel holes in concrete, masonry or the like. Pending DE1100257B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DEF28402A DE1100257B (en) 1959-05-08 1959-05-08 Drill bits for the production of dowel holes in concrete, masonry or the like.
CH473460A CH378027A (en) 1959-05-08 1960-04-26 Process for producing a dowel chisel and a dowel chisel produced by the process and its use
BE590565A BE590565A (en) 1959-05-08 1960-05-06 Chisel for drilling dowel holes.
US27738A US3208542A (en) 1959-05-08 1960-05-09 Dowel bit
GB16323/60A GB954020A (en) 1959-05-08 1960-05-09 Wall-boring bit or drill
GB25904/63A GB955410A (en) 1959-05-08 1960-05-09 Wall-boring bit or drill
NL6406203A NL6406203A (en) 1959-05-08 1964-06-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF28402A DE1100257B (en) 1959-05-08 1959-05-08 Drill bits for the production of dowel holes in concrete, masonry or the like.

Publications (1)

Publication Number Publication Date
DE1100257B true DE1100257B (en) 1961-02-23

Family

ID=7092868

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF28402A Pending DE1100257B (en) 1959-05-08 1959-05-08 Drill bits for the production of dowel holes in concrete, masonry or the like.

Country Status (2)

Country Link
US (1) US3208542A (en)
DE (1) DE1100257B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295618A (en) * 1960-05-09 1967-01-03 Fischer Artur Dowel bit and method of manufacturing the same
US4111593A (en) * 1972-05-27 1978-09-05 Carrillo Jr Rolando Wiped cutter
US5536121A (en) * 1992-09-22 1996-07-16 Titan Technologies, Inc. Anchor insert
US5308203A (en) * 1992-09-22 1994-05-03 Titan Technologies, Inc. Saw tipped anchor insert
US7171713B1 (en) * 2004-12-13 2007-02-06 Raley Jesse D Multi-tool for use with golf carts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534809A (en) * 1949-08-23 1950-12-19 Fractionation of tall oil

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US100686A (en) * 1870-03-08 Improved tool for lacing belts
US560500A (en) * 1896-05-19 Rock-drill
US1716984A (en) * 1929-06-11 Boring tool
GB190205115A (en) * 1902-02-28 1903-04-17 Theodore Marie Schmitt A Tool for Making Holes in Walls and the like.
US740906A (en) * 1902-07-22 1903-10-06 David Awst Owen Rock-drill attachment.
US843764A (en) * 1906-07-09 1907-02-12 Thomas M Mcwhorter Earth-auger.
US860314A (en) * 1907-04-01 1907-07-16 Daniel W Mcleod Stoneworking tool.
US992421A (en) * 1908-01-24 1911-05-16 Robert W Hardie Method of making bilge bodies.
FR405498A (en) * 1909-07-19 1909-12-31 Adolphe Rossi Process and tools for slicing the stone in the mass or in blocks already extracted
US1034803A (en) * 1912-05-07 1912-08-06 Konrad Jonassen Combination rock drill and reamer.
US1053148A (en) * 1912-05-25 1913-02-18 Garrett A Billow Weeder.
US1224579A (en) * 1913-05-29 1917-05-01 Oliver M Edwaards Method of forming the sheet-metal barrels of winding-rollers.
US1208164A (en) * 1916-04-08 1916-12-12 James W Kelly Drill.
US1383045A (en) * 1919-04-21 1921-06-28 Boston Pencil Pointer Company Method of making cutters for pencil-sharpeners
US1442184A (en) * 1919-10-04 1923-01-16 Roy H Smith Socket wrench
GB202342A (en) * 1922-12-14 1923-08-23 Francis Herbert Mackintosh Improved boring apparatus
US2015339A (en) * 1931-06-03 1935-09-24 Black & Decker Mfg Co Method of making a hole saw
US1829659A (en) * 1931-06-22 1931-10-27 Albert F Kefflo Tubular saw
CH235965A (en) * 1943-10-16 1945-01-15 Addy Charles Drill bit for making holes in a brick.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534809A (en) * 1949-08-23 1950-12-19 Fractionation of tall oil

Also Published As

Publication number Publication date
US3208542A (en) 1965-09-28

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