DE828385C - Point chisels for breakers - Google Patents
Point chisels for breakersInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/02—Percussive tool bits
-
- 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
- B28D1/26—Working 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/211—Cross-sections of the tool
- B25D2250/215—Narrowing 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)
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 (14)
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 |
USD922842S1 (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 |
USD923447S1 (en) | 2019-05-06 | 2021-06-29 | Milwaukee Electric Tool Corporation | Chisel |
USD1045551S1 (en) | 2023-01-06 | 2024-10-08 | Milwaukee Electric Tool Corporation | Chisel |
USD1046579S1 (en) | 2023-01-06 | 2024-10-15 | Milwaukee Electric Tool Corporation | Chisel |
-
1950
- 1950-11-21 DE DEST2776A patent/DE828385C/en not_active Expired
Cited By (20)
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 |
EP3222390A1 (en) | 2016-03-23 | 2017-09-27 | HILTI Aktiengesellschaft | Chisel |
WO2017162623A1 (en) | 2016-03-23 | 2017-09-28 | Hilti Aktiengesellschaft | Tool bit |
US11213939B2 (en) | 2016-03-23 | 2022-01-04 | Hilti Aktiengesellschaft | Chisel |
USD922841S1 (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 |
USD922840S1 (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 |
USD921465S1 (en) | 2019-05-06 | 2021-06-08 | Milwaukee Electric Tool Corporation | Mortar knife |
USD941113S1 (en) | 2019-05-06 | 2022-01-18 | Milwaukee Electric Tool Corporation | Chisel |
USD1045551S1 (en) | 2023-01-06 | 2024-10-08 | Milwaukee Electric Tool Corporation | Chisel |
USD1046579S1 (en) | 2023-01-06 | 2024-10-15 | Milwaukee Electric Tool Corporation | Chisel |
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