AT54526B - Rock rotary and impact drill bits. - Google Patents

Rock rotary and impact drill bits.

Info

Publication number
AT54526B
AT54526B AT54526DA AT54526B AT 54526 B AT54526 B AT 54526B AT 54526D A AT54526D A AT 54526DA AT 54526 B AT54526 B AT 54526B
Authority
AT
Austria
Prior art keywords
drill
drill bits
impact drill
drill rod
chisel
Prior art date
Application number
Other languages
German (de)
Inventor
Nikolaus Staub
Original Assignee
Nikolaus Staub
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 Nikolaus Staub filed Critical Nikolaus Staub
Application granted granted Critical
Publication of AT54526B publication Critical patent/AT54526B/en

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  • Earth Drilling (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Mm-dSh-und Stessbohrer.   



   Gegenstand der Erfindung ist eine zweckmässige Befestigung der Meissel an der   Bohr-   stange, welche es ermöglicht, den Bohrer als Dreh-und Stossbohrer zu benutzen. 



   Die Zeichnung zeigt ein Ausführungsbeispiel, und zwar ist Fig. 1 die äussere Ansicht, Fig. 2 eine Schnittansicht und Fig. 3 der Grundriss des Bohrers. 



   Der Bohrer besitzt die beiden Meissel a, die in der Hülse b sitzen, welche die Meissel mit der Bohrstange c verbindet. Die Hülse besitzt zwei kegelförmige Bohrungen zur Aufnahme des konischen Teils der Meisselschäfte und des konischen Endes der Bohrstange und zwischen den kegelförmigen Bohrungen eine zylindrische Bohrung. In den Schäften der Meissel ist je eine Aussparung vorgesehen, welche zusammen eine konische Öffnung bilden, in welche der entsprechend geformte Zapfen d der Bohrstange c eintritt. 



   An der Basis des konischen Endes der Bohrstange befindet sich auf gegenüberliegenden Seiten je ein Ansatz e, welcher in einen Ausschnitt der Hülse b eingreift, wodurch die Hülse mit der Bohrstange gekuppelt wird. 



   Die Form der Schneiden der Meissel ist diejenige eines X. Diese hat den Vorteil, dass der Bohrer freier und leichter arbeitet, weil die Reibung an den Seiten verringert ist und ein rundes Loch im Gestein entsteht, in welchem kein Ecken, Klemmen oder Festsetzen der Meissel stattfinden kann. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Mm-dSh and drill bits.



   The subject of the invention is an expedient fastening of the chisel to the drill rod, which makes it possible to use the drill as a rotary and ram drill.



   The drawing shows an exemplary embodiment, namely FIG. 1 is the external view, FIG. 2 is a sectional view and FIG. 3 is the plan view of the drill.



   The drill has the two chisels a, which sit in the sleeve b, which connects the chisel with the drill rod c. The sleeve has two conical bores for receiving the conical part of the chisel shafts and the conical end of the drill rod and a cylindrical bore between the conical bores. A recess is provided in each of the shafts of the chisels, which together form a conical opening into which the correspondingly shaped pin d of the drill rod c enters.



   At the base of the conical end of the drill rod there is a projection e on opposite sides, which engages in a cutout of the sleeve b, whereby the sleeve is coupled to the drill rod.



   The shape of the cutting edge of the chisel is that of an X. This has the advantage that the drill works more freely and more easily, because the friction on the sides is reduced and a round hole is created in the rock, in which the chisel does not have corners, jamming or sticking can take place.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Gestoinbohrer mit mehreren auswechselbaren Meisseln, dadurch gekennzeichnet, dass die Verbindung der Meissel (a) mit der Bohrstange (e) durch eine doppelt konische HUlse (b) erfolgt, welche mit Einschnitten versehen ist, in welche Ansätze (e) der Bohrstange eintreten. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Gestoin drill with several interchangeable chisels, characterized in that the chisel (a) is connected to the drill rod (e) by a double-conical sleeve (b) which is provided with incisions, into which approaches (e) of the drill rod enter. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT54526D 1910-06-13 1911-05-13 Rock rotary and impact drill bits. AT54526B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE54526X 1910-06-13

Publications (1)

Publication Number Publication Date
AT54526B true AT54526B (en) 1912-07-25

Family

ID=5628049

Family Applications (1)

Application Number Title Priority Date Filing Date
AT54526D AT54526B (en) 1910-06-13 1911-05-13 Rock rotary and impact drill bits.

Country Status (1)

Country Link
AT (1) AT54526B (en)

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