DE628886C - Point chisels for breakers - Google Patents

Point chisels for breakers

Info

Publication number
DE628886C
DE628886C DEK129214D DEK0129214D DE628886C DE 628886 C DE628886 C DE 628886C DE K129214 D DEK129214 D DE K129214D DE K0129214 D DEK0129214 D DE K0129214D DE 628886 C DE628886 C DE 628886C
Authority
DE
Germany
Prior art keywords
cutting edges
iron
retaining cap
shank
pointed
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
DEK129214D
Other languages
German (de)
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.)
GUENTHER FRIEDRICH KLERNER
Original Assignee
GUENTHER FRIEDRICH KLERNER
Publication date
Priority to DEK129214D priority Critical patent/DE628886C/en
Application granted granted Critical
Publication of DE628886C publication Critical patent/DE628886C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C37/00Other methods or devices for dislodging with or without loading
    • E21C37/02Other methods or devices for dislodging with or without loading by wedges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02Percussive tool bits

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)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

Die Erfindung; betrifft einen Abbauhammer mit konischer Haltekappe, an welcher mehrere Schneiden im spitzen Winkel auf die Mittelachse des Spitzeisens zu verlaufen. Erfindungsgemäß wird eine weitere Verbesserung dadurch erreicht, daß außer an der Haltekappe bzw. an dem Arbeitszylinder solche Schneiden auch an 'den Spitzeisen selbst angebracht sind. Zwar sind bereits ίο Spitzeisen bekanntgeworden, welche an ihrem vorderen Ende keilförmig verjüngt sind, aber es sind daran keine besonderen Schneiden angebracht, wie sie für die Arbeitsweise sich als besonders vorteilhaft erwiesen haben. Es ist auch bekannt, die Spitzeisen nach dem Bund zu konisch zu verstärken, wobei jedoch diese Verstärkung nur glatte Oberflächen aufweist.The invention; relates to a pick hammer with a conical retaining cap on which several Cutting at an acute angle to run on the central axis of the pointed iron. According to the invention A further improvement is achieved in that, in addition to the retaining cap or the working cylinder Such cutting edges are also attached to the point chisels themselves. True are already ίο pointed iron became known which on her front ends are tapered in the shape of a wedge, but no special cutting edges are attached to them, as they have proven to be particularly advantageous for the working method. It it is also known to reinforce the point irons conically after the collar, however this reinforcement has only smooth surfaces.

Erfindungsgemäß erfolgt die Anbringung der Schneiden entweder unmittelbar an dem Spitzeisen selbst oder an einer besonderen Buchse, welche über den Schaft des Spitzeisens geschoben wird. Der mittlere Durchmesser der Schneiden am Spitzeisen ist dabei kleiner gehalten als der Durchmesser der Schneiden an der Haltekappe. Durch den schlanken Schaft des Spitzeisens wird zunächst während des Arbeitens das Material hereingewonnen. Versagt der schlanke Schaft, dann führen die messerartigen Schneiden, gleichgültig ob sie am Hammer oder am Spitzeisen angeordnet sind, den weiteren Schluß der Gewinnungsarbeit aus.According to the invention, the attachment of the cutting takes place either directly on the Pointing iron itself or on a special socket, which over the shaft of the point iron is pushed. The mean diameter of the cutting edges on the pointed iron is kept smaller than the diameter of the Cutting on the retaining cap. Due to the slim shank of the pointed iron, first gained the material while working. If the slim shaft fails, then the knife-like cutting edges, regardless of whether they are on the hammer or on the Pointed iron are arranged, the further conclusion of the extraction work.

In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung dargestellt.Two exemplary embodiments of the invention are shown in the drawing.

Abb. ι zeigt das Vorderteil eines Abbauhammers mit dem Arbeitskolben 1, der sich in dem Zylinder 2 bewegt. 3 ist ein Luftzuführungskanal, 4 eine Auspufföffnung. Der Schlagkolben 1 schlägt auf das Einsteckende 5 des Spitzeisens 12, welches mit seinem Bund 11 sich gegen das vordere Ende des Abbauhammers anlegt. Der zylindrische Schaft 12 geht in an sich bekannter Weise konisch sich verstärkend in den Bund 11 über. An diesem unteren Ende des zylindrischen Schaftes 12 sind die radial stehenden Schneiden 7 vorgesehen, welche dabei so weit nach außen geführt sind, daß sie den Bund 11 am untersten Ende noch etwas überragen. Abb. 2 zeigt ein Spitzeisen mit zylindrischem Schaft, der an seinem unteren Ende mit kurzer Rundung in den Bund 11 übergeht. Über den zylindrischen Schaft ist eine besondere Buchse 7a geschoben, welche ihrerseits sich von ihrem vorderen Ende aus in Richtung auf den Bund 11 zu verstärkt. An ihrer Außenseite trägt sie, in gleicher Weise wie das Spitzeisen der Abb. 1, die radial stehenden Schneiden, welche am vorderen Ende der Buchse am Schaft beginnend spitzwinklig· nach außen laufen, wie dies insbesondere aus der Abb. 3 ersichtlich ist, welche das Spitzeisen in Aufsicht darstellt.Fig. Ι shows the front part of a hammer with the working piston 1, which moves in the cylinder 2. 3 is an air supply duct, 4 an exhaust port. The percussion piston 1 strikes the insertion end 5 of the tip iron 12, which rests with its collar 11 against the front end of the picking hammer. The cylindrical shaft 12 merges conically into the collar 11 in a manner known per se. At this lower end of the cylindrical shaft 12, the radially standing cutting edges 7 are provided, which are guided so far outward that they protrude slightly beyond the collar 11 at the lowest end. Fig. 2 shows a pointed iron with a cylindrical shank, which merges into the collar 11 with a short curve at its lower end. A special bush 7a is pushed over the cylindrical shaft, which in turn is reinforced from its front end in the direction of the collar 11. On its outside, in the same way as the pointed iron in Fig. 1, it bears the radially standing cutting edges, which, starting at the front end of the socket on the shaft, run outwards at an acute angle, as can be seen in particular in Fig. 3, which shows the Represents point iron in supervision.

Claims (3)

Patentansprüche:Patent claims: 1. Spitzeisen für Abbauhammer mit konischer, mit Schneiden versehener Haltekappe, dadurch gekennzeichnet, daß1. Point chisel for pick hammer with conical, with cutting edges Retaining cap, characterized in that * in Fortsetzung der auf der Haltekappe oder dem Zylinder vorgesehenen Schneiden auch auf dem zylindrischen Schaft des Spitzeisens radial stehende Schneiden vorgesehen sind, die am Bund beginnend spitzwinklig auf die Mittelachse des Spitzeisens zulaufen.* in continuation of the one on the retaining cap or the cutting edges provided for the cylinder, also cutting edges standing radially on the cylindrical shank of the tip iron are provided that starting at the collar at an acute angle to the central axis of the pointed iron run up. 2. Spitzeisen nach Anspruch 1, dadurch gekennzeichnet, daß die Schneiden (7) mit dem Schaft aus einem Stück hergerichtet sind oder daß eine besondere Buchse (ja) mit den Schneiden über den Schaft (12) gesteckt ist.2. Pointing iron according to claim 1, characterized in that the cutting edges (7) are made in one piece with the shank or that a special bushing (j a ) is inserted with the cutting edges over the shank (12). 3. Ausführungsform nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der mittlere, durch die Schneiden am Spitzeisen gelegte Durchmesser kleiner ist als der mittlere Durchmesser der Schneiden an der Haltekappe und an dem Zylinder.3. Embodiment according to claim 1 and 2, characterized in that the The mean diameter set by the cutting edges on the pointed chisel is smaller than the mean diameter of the cutting edges on the retaining cap and on the cylinder. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEK129214D Point chisels for breakers Expired DE628886C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK129214D DE628886C (en) Point chisels for breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK129214D DE628886C (en) Point chisels for breakers

Publications (1)

Publication Number Publication Date
DE628886C true DE628886C (en) 1936-04-18

Family

ID=7246799

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK129214D Expired DE628886C (en) Point chisels for breakers

Country Status (1)

Country Link
DE (1) DE628886C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743218C (en) * 1938-11-03 1943-12-20 Gewerkschaft Reuss Extraction tool with wedge-shaped central rib and shovel-like side attachment
DE746446C (en) * 1939-05-21 1944-08-05 Gewerkschaft Reuss Extraction tool with an approximately cylindrical, pointed end part and a subsequent approximately ploughshare-like body
DE927023C (en) * 1952-04-16 1955-04-28 Hauhinco Maschf Jackhammer, in particular a pick hammer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743218C (en) * 1938-11-03 1943-12-20 Gewerkschaft Reuss Extraction tool with wedge-shaped central rib and shovel-like side attachment
DE746446C (en) * 1939-05-21 1944-08-05 Gewerkschaft Reuss Extraction tool with an approximately cylindrical, pointed end part and a subsequent approximately ploughshare-like body
DE927023C (en) * 1952-04-16 1955-04-28 Hauhinco Maschf Jackhammer, in particular a pick hammer

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