DE764761C - Chisel tip for breakers - Google Patents

Chisel tip for breakers

Info

Publication number
DE764761C
DE764761C DEW112912D DEW0112912D DE764761C DE 764761 C DE764761 C DE 764761C DE W112912 D DEW112912 D DE W112912D DE W0112912 D DEW0112912 D DE W0112912D DE 764761 C DE764761 C DE 764761C
Authority
DE
Germany
Prior art keywords
wedge
chisel
tip
breakers
chisel tip
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
DEW112912D
Other languages
German (de)
Inventor
August Wagener
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 DEW112912D priority Critical patent/DE764761C/en
Application granted granted Critical
Publication of DE764761C publication Critical patent/DE764761C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/02—Other methods or devices for dislodging with or without loading by wedges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

Die Erfindung betrifft Keilspitzen für Ab- bauhämmer derjenigen Art, bei welchen das Schlagloch unter Verwendung einer Haupt- keilspitze und mit dieser zusammenarbeitenr den Zusatzkeilen hergestellt wird. Von einer bekannten Keilspitzenausbildung dieser Art. bei welcher die Spitze eines getrennt ge- fertigten Zusatzheiles: sich gegen die Haupt- keilspitze abstützt und deren Keillinie nach rückwärts verlängert, um dadurch eine größere Keilwirkung und Leistung zu erreichen. unterscheidet sich der Erfindungsgegenstand dadurch. daß rings um den Schaft des Keil- spitzeisens keilspitzenartig gestaltete Wülste in spiralförmiger Anordnung angebracht sind. Durch diese Maßnahme wird ein bei den be- kannten Keilspitzenausführungen in Erschei- nung getretener Nachteil behoben, der sich beim Arbeiten mit den Abbauhämmern da- durch störend bemerkbar machte, daß sich das Keilspitzeisen häufig in der loszubrechenden Kohle festsetzte und nur mit großem Kraft- aufwand aus seiner eingeklemmten Lage zu läsen war. Durch die rings um den Schaft liegenden Wülste erhält die Berührungsfläche zwischen Kohle und Schaft einen unregel- mäßiger_. ihre Richtung fortlaufend ent- sprechend ändernden Verlauf, während die spiralförmige Anordnung und keilspitzen- artige Ausbildung dieser ZVülste die Überwin- dung des durch sie vermehrten Einschlag- widerstandes wesentlich erleichtert. In der Zeichnung ist die Erfindung an einem Beispiel durch Abb. z in einer Ansicht eines erfindungs- gemäß gestalteten Keilspitzeisens und durch Abb. a in: einem Ouerschnitt nach der Linie II-II der Abb. r veranschaulicht. Um den in üblicher Weise in einer kegel- förmigen Spitze a auslaufenden Schaft b des Keilspitzeisens sind in spiralförmiger Anord- nung keil-spitzenartig gestaltete Wülste c an- gebracht. Durch die spiralförmig: Anordnung und die keilspitzenförmige Ausbildung dieser Wülste wird der Eintreibwiderstand der er- findungsgemäßen Keilspitzeisen so «-eit her- abgesetzt, daß er nur geringfügig größer als der eines Iheilspitzeisens mit glattem zylin- drischen Schaft ist, während der Lösungs- widerstand erheblich geringer und das Ver- mögen zum Losbrechen der Kohle wesentlich größer als bei diesen ist. The invention relates to wedge tips for construction hammers of the kind with which the Pothole using a main wedge tip and working with it the additional wedges is made. From one known wedge tip training of this type. in which the tip of a separately made additional parts: against the main wedge tip supports and its wedge line after extended backwards, thereby creating a larger one To achieve wedge effect and performance. the subject of the invention differs through this. that around the shaft of the wedge Pointed iron wedge-shaped bulges are attached in a spiral arrangement. Through this measure, a Known wedge point designs in appearance corrected the disadvantage that occurred when working with the demolition hammers made noticeable by disturbing that the Chisel chisels often in the one to be broken off Settled coal and only with great force effort from its trapped position read was. Through the all around the shaft lying beads preserve the contact surface between the coal and the shaft an irregular moderate_. their direction continuously changing speaking changing course while the spiral arrangement and wedge-tip like training of this ZVülste the conquering due to the increased felling resistance is much easier. In the drawing the invention is on an example Fig. Z in a view of an invention according to designed chisel tip and through Fig. A in: a cross section after the Line II-II of Fig.r illustrates. To the in the usual way in a conical shaped tip a tapering shaft b of the Wedge tips are arranged in a spiral wedge-point-like bulges c an- brought. Through the spiral: arrangement and the wedge-shaped design of these The driving resistance of the chisel chisels according to the invention deposed that he was only slightly larger than that of a healing tip with a smooth cylindrical shank, while the solution resistance is considerably lower and the like to break loose the coal is greater than this.

Claims (1)

PATENTANSPRUCH: Mit Zusatzkeilen in einem gemeinsamen Schlagloch arbeitende Keilspitze für #lb- bauhämmer, dadurch gekennzeichnet, daß die Zusatzkeile von rings um den Schaft des Keilspitzeisens in spiralförmiger An- ordnung angebrachten, keilspitzenartig ge- stalteten Wülsten (c) gebildet «-erden.
Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungs- verfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschriften 1 r. 169936, 3R-1099 USA.-Patentschriften N -r- 740 9o6, 2 021 900; französische Patentschrift Nr. .Io; 6r;.
PATENT CLAIM: With additional wedges in one joint Pothole working chisel tip for # lb- construction hammers, characterized in that the additional wedges from around the shaft of the chisel chisel in a spiral orderly, wedge-shaped formed bulges (c) "-erden.
To delimit the subject matter of the invention from the state of the art are in the grant consider the following publications been drawn: German patents 1 r. 169936, 3R-1099 USA patents N -r- 740 9o6, 2,021,900; French Patent No. .Io; 6r ;.
DEW112912D 1943-03-30 1943-03-30 Chisel tip for breakers Expired DE764761C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW112912D DE764761C (en) 1943-03-30 1943-03-30 Chisel tip for breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW112912D DE764761C (en) 1943-03-30 1943-03-30 Chisel tip for breakers

Publications (1)

Publication Number Publication Date
DE764761C true DE764761C (en) 1953-05-18

Family

ID=7617190

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW112912D Expired DE764761C (en) 1943-03-30 1943-03-30 Chisel tip for breakers

Country Status (1)

Country Link
DE (1) DE764761C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156789A1 (en) * 1984-02-28 1985-10-02 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Rock breaking tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE169936C (en) *
US740906A (en) * 1902-07-22 1903-10-06 David Awst Owen Rock-drill attachment.
FR407617A (en) * 1908-10-06 1910-03-07 George Henry Rayner Hand percussion instrument
DE384099C (en) * 1922-04-16 1923-10-26 G Hausherr Maschf Chisel arrangement for striking tools u. like
US2021900A (en) * 1933-06-05 1935-11-26 Sullivan Machinery Co Pick

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE169936C (en) *
US740906A (en) * 1902-07-22 1903-10-06 David Awst Owen Rock-drill attachment.
FR407617A (en) * 1908-10-06 1910-03-07 George Henry Rayner Hand percussion instrument
DE384099C (en) * 1922-04-16 1923-10-26 G Hausherr Maschf Chisel arrangement for striking tools u. like
US2021900A (en) * 1933-06-05 1935-11-26 Sullivan Machinery Co Pick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156789A1 (en) * 1984-02-28 1985-10-02 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Rock breaking tool

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