DE828385C - Point chisels for breakers - Google Patents

Point chisels for breakers

Info

Publication number
DE828385C
DE828385C DEST2776A DEST002776A DE828385C DE 828385 C DE828385 C DE 828385C DE ST2776 A DEST2776 A DE ST2776A DE ST002776 A DEST002776 A DE ST002776A DE 828385 C DE828385 C DE 828385C
Authority
DE
Germany
Prior art keywords
shaft
tip
iron
wedge
breakers
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
DEST2776A
Other languages
German (de)
Inventor
August Wagener
Martin 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.)
Stahlhammerwerk Kruener G M B
Original Assignee
Stahlhammerwerk Kruener G M B
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 Stahlhammerwerk Kruener G M B filed Critical Stahlhammerwerk Kruener G M B
Priority to DEST2776A priority Critical patent/DE828385C/en
Application granted granted Critical
Publication of DE828385C publication Critical patent/DE828385C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/211Cross-sections of the tool
    • B25D2250/215Narrowing cross-sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Earth Drilling (AREA)

Description

Die Erfindung betrifft ein Spitzeisen für Abbauhämmer. dessen zylindrischer Schaft zur Erhöhung der Kei,lwir'kung inLängsrichtung erhaben liegende und nach der Spitze des Schaftes hin keilförmig auslaufende Wülste trägt.The invention relates to a point chisel for mining hammers. its cylindrical Shank to increase the kei, oil in the longitudinal direction raised and lying down the tip of the shaft carries wedge-shaped tapering beads.

Es ist bereits vorgeschlagen worden, die Wülst° auf dem Schaft des Spitzeisens derart anzuordnen, daß die zusätzlichen Keilspitzen nicht auf gleicher Höhe, sondern auf einer gedachten Schraubenlinie am Schaft enden. Diese Ausbildung verfolgt neben einer Leitungssteigerung noch den weiteren Zweck, ein Verklemmen und Festsetzen des Eisens im Schlagloch des loszubrechenden Gutes, z. B. Kohle, zu verhindern. Die angestrebte Wirkung wird dadurch erzielt, daß die Berührungsfläche zwischen der Kohle und dem Schaft des Eisens einen unregelmäßigen, ihre Richtung fortlaufend ändernden Verlauf nimmt, während die schraubenförmige Anordnung der zusätzlichen Keilspitzen die Überwindung des durch sie vermehrten Ei,nschlagwiderstandes wesentlich erleichtert. Da beiden bekannten Spitzeisen dieser Art nur ein Zusatz'kei'lwulst bis zur Schaftspitze läuft, tritt die vorteilhafte \\%ir,kung erst dann ein, wenn das Spitzeisen ein gewisses Stück in die Kohle eingedrungen ist, d. li. wenn auch die übrigen Zusatzkeile m-it ihr in Berührung kommen.It has already been proposed that the bead on the shaft of the To arrange the pointed iron in such a way that the additional wedge points are not on the same level Height, but end on an imaginary helical line on the shaft. This training In addition to increasing the line, it also has the further purpose of jamming and setting the iron in the pothole of the goods to be broken loose, e.g. B. Coal, to prevent. The desired effect is achieved in that the contact surface between the coal and the shank of the iron an irregular, their direction continuously changing course takes place, while the helical arrangement of the additional wedge points overcoming the increased impact resistance much easier. Since both known pointed chisels of this type have only one additional 'kei'l bead runs to the tip of the shaft, the beneficial effect only occurs when the pointed iron has penetrated a certain distance into the coal, d. left albeit the other additional wedges come into contact with it.

Es wurde nun gefunden, daß die Wirkungsweise der eingangs genannten Spitzeisen bereits beim Ansetzen des Abbauhammers zur Geltung kommt, wenn die Keilspitzen der Wülste abwechselnd am (:rund der Schaftspitze und im beliebigen Abstand,-von ,dieser in gleicher oder unterschiedlicher Höhe auf dem Schaft enden. Auf diese Weise dringen mit der Schaftspitze des Eisens gleichzeitig mehrere Zusatzkeile in das zu lösende Gut ein, so daß das Schlagloch von Atilreginn ehre zusätzliche @rw.eiterung erfährt, wodurch ein Festsetzen des Eisens in Jedem Stadium der Arbeit wirkungsvoll verhindert wird.It has now been found that the operation of the aforementioned Pointed iron comes into its own when the pick hammer is applied, when the wedge points of the bulges alternately on (: around the shaft tip and at any distance, -from , these end at the same or different heights on the shaft. To this In the same way, several additional wedges penetrate with the tip of the shank of the iron the goods to be redeemed, so that the Atilreginn pothole honors additional expansion learns, whereby a fixation of the iron is effective in every stage of the work is prevented.

In der Zeichnung ist ein Ausführungsbeispiel d°s I?rfindungsgegenstandes dargestellt. und zwar zeigt Abb. r eine Seitenansicht.In the drawing, an exemplary embodiment is the subject of the invention shown. namely Fig. r shows a side view.

Abb. 2 eine um 9o° versetzte Seitenansicht und Abb. 3 einen Schnitt nach _-1-B der Abb. i.Fig. 2 is a side view offset by 90 ° and Fig. 3 is a section according to _-1-B of Fig. i.

Auf dem in eine 'kegel- oder l,vramidenförmig: Spitze a auslaufenden Schaft h des Eiisens sind ;il der Längsrichtung erhaben liegend.,- und nach der Spitze a des Schaftes lein lcei'lf<irmig auslaufende Wülste c, c' angeordnet. Die Keilspitzen der Wülste c enden arrr Grunde der Schaftspitze a. während die Keilspitzen der\-\'iilstec' im beliebigen .l#,hstande von der Schaftspitze in gleicher oder unterschiedlicher Höhe auf dem Schaft b auslaufen. Die Wülste können in der Längsrichtung eine gleichmäßige Unterbrechung erfahren, um hei einem Nachschmieden des Eisens wieder die .erfindungsgemäße Anordnung und .@\usbildung zu erhalten. Die Zahl der Wülste soll zweckmäßig viel betragen; es `können aber auch meln-ere \\'ülste in regelmäßigen Abständen \-orgeselien sein.On which in a 'cone-shaped or l, vramid-shaped: tip a tapering off Shank h of the iron; il raised in the longitudinal direction., - and after the Tip a of the shaft is arranged as a small, tapering bulge c, c '. The wedge tips of the beads c end at the bottom of the shaft tip a. while the wedge tips the \ - \ 'iilstec' in any .l #, would be in the same or different heights run out on the shaft b. The beads can be in the longitudinal direction experience an even interruption, in order to heat reforging of the iron to get the .inventive arrangement and. @ \ training again. The number of Bulges should be expediently large; but it can also melt in be organized at regular intervals.

Claims (1)

PATENTANSPRUCH: Spitzeiseu für Abbauhäniiner mit auf denn zylindrischen Schaft des Eisens in Längsrichtung erhaben angeordneten und nach <Leer Spitze des Schaftes hin keilförmig auslaufend°n Wülsten, dadurch gekennzeichnet. -daß die Keilspitzen der VViilste (c, c') altwechselnd am Grunde der Schaftspitze (a) und im lielieliigeii Abstand,- von dieser in gleicher <,der unterschiedlicher Höhe auf <lein Schaft (h) enden.PATENT CLAIM: Spitziseu for dismantling hens with on then cylindrical Shank of the iron raised in the longitudinal direction and pointed to <Leer of the shaft tapering off in the shape of a wedge ° n bulges, characterized. -that the Wedge tips of the tip (c, c ') alternating at the base of the shaft tip (a) and at the same distance, - from this at the same <, the different height end on <lein shaft (h).
DEST2776A 1950-11-21 1950-11-21 Point chisels for breakers Expired DE828385C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST2776A DE828385C (en) 1950-11-21 1950-11-21 Point chisels for breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST2776A DE828385C (en) 1950-11-21 1950-11-21 Point chisels for breakers

Publications (1)

Publication Number Publication Date
DE828385C true DE828385C (en) 1952-01-17

Family

ID=7452928

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST2776A Expired DE828385C (en) 1950-11-21 1950-11-21 Point chisels for breakers

Country Status (1)

Country Link
DE (1) DE828385C (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947062C (en) * 1954-03-13 1956-08-09 Gewerk Eisenhuette Westfalia Chisels for breakers
EP0156789A1 (en) * 1984-02-28 1985-10-02 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Rock breaking tool
EP1413403A1 (en) * 2002-09-25 2004-04-28 HILTI Aktiengesellschaft Pointed chisel
US9085074B2 (en) 2011-03-22 2015-07-21 Black & Decker Inc. Chisels
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
EP3222390A1 (en) 2016-03-23 2017-09-27 HILTI Aktiengesellschaft Chisel
USD921465S1 (en) 2019-05-06 2021-06-08 Milwaukee Electric Tool Corporation Mortar knife
USD922841S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922840S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922842S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD923447S1 (en) 2019-05-06 2021-06-29 Milwaukee Electric Tool Corporation Chisel

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947062C (en) * 1954-03-13 1956-08-09 Gewerk Eisenhuette Westfalia Chisels for breakers
EP0156789A1 (en) * 1984-02-28 1985-10-02 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Rock breaking tool
EP1413403A1 (en) * 2002-09-25 2004-04-28 HILTI Aktiengesellschaft Pointed chisel
US9085074B2 (en) 2011-03-22 2015-07-21 Black & Decker Inc. Chisels
US9333635B2 (en) 2011-03-22 2016-05-10 Black & Decker Inc. Chisels
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
WO2017162623A1 (en) 2016-03-23 2017-09-28 Hilti Aktiengesellschaft Tool bit
EP3222390A1 (en) 2016-03-23 2017-09-27 HILTI Aktiengesellschaft Chisel
US11213939B2 (en) 2016-03-23 2022-01-04 Hilti Aktiengesellschaft Chisel
USD921465S1 (en) 2019-05-06 2021-06-08 Milwaukee Electric Tool Corporation Mortar knife
USD922841S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922840S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922842S1 (en) 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD923447S1 (en) 2019-05-06 2021-06-29 Milwaukee Electric Tool Corporation Chisel
USD937650S1 (en) 2019-05-06 2021-12-07 Milwaukee Electric Tool Corporation Chisel
USD938249S1 (en) 2019-05-06 2021-12-14 Milwaukee Electric Tool Corporation Chisel
USD941113S1 (en) 2019-05-06 2022-01-18 Milwaukee Electric Tool Corporation Chisel

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