EP0405274A1 - Tooth mounting for fixing a tooth to an excavator bucket - Google Patents

Tooth mounting for fixing a tooth to an excavator bucket Download PDF

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Publication number
EP0405274A1
EP0405274A1 EP90111412A EP90111412A EP0405274A1 EP 0405274 A1 EP0405274 A1 EP 0405274A1 EP 90111412 A EP90111412 A EP 90111412A EP 90111412 A EP90111412 A EP 90111412A EP 0405274 A1 EP0405274 A1 EP 0405274A1
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EP
European Patent Office
Prior art keywords
tooth
tooth holder
holding arm
excavator
holder
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.)
Granted
Application number
EP90111412A
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German (de)
French (fr)
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EP0405274B1 (en
Inventor
Peter Eichelberger
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.)
Baz Service AG
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Baz Service AG
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Filing date
Publication date
Application filed by Baz Service AG filed Critical Baz Service AG
Publication of EP0405274A1 publication Critical patent/EP0405274A1/en
Application granted granted Critical
Publication of EP0405274B1 publication Critical patent/EP0405274B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters

Definitions

  • the invention relates to a tooth holder of an excavator tooth which can be fastened to an excavator shovel for the releasable fastening of a tooth tip on its nose which projects beyond the edge of the excavator shovel, the holder with its rear part the edge part of the excavator shovel with an inside and longer holding arm and with an outside and shorter holding arm embraces.
  • Excavator teeth which consist of a tooth holder and a tooth tip that can be detachably fastened to it, are known in many designs.
  • the tooth tip is a considerable part of the excavator tooth subject to wear, which is why it is designed to be replaceable.
  • the holder lying in the shadow of the tooth tip is subject to less wear; however, it has the task of establishing a reliable connection between the tooth tip and the excavator bucket.
  • the holders of the excavator teeth are usually designed so that they lie on the inside of the excavator bucket and are welded to the bucket wall at their edge.
  • a tooth holder which has an inside and an outside holding arm, the two arms engaging around the blade edge. So that an adaptation to different wall thicknesses of the excavator bucket is possible, the outside holding arm is separated from the holder and is only connected to it by welding when the tooth holder is installed. However, making this connection is quite difficult and requires the use of a skilled person.
  • the holding arms of the tooth holder rear part are connected to one another by a connecting part.
  • the connecting part for fastening the rear part of the tooth holder to an excavator bucket can be removable to the width which corresponds to the wall thickness of the bucket edge.
  • the invention is based on the consideration that any adaptation of the tooth holder to the respective wall thickness can be achieved if the necessary distance between the two holding arms can be provided when it is certain for which excavator shovel the individual tooth holder is required. Only then is the necessary cutout between the two holding arms, e.g. cut out by flame cutting.
  • the tooth holder shown in FIG. 1 has a holder lug 1, to which a tooth holder rear part 2 connects.
  • a tooth tip 3 is placed on the holder nose 1, which completely surrounds the holder nose 1.
  • a through hole 4 is provided in the holder nose, into which a holding pin, e.g. a shear spring pin can be used, the ends of which protrude into bores 5 of the tooth tip and thus hold the tooth tip 3 in place.
  • the tooth holder rear part 2 has two holding arms, an inside and longer holding arm 7 and an outside and shorter holding arm 8. Between the holding arms 7, 8 there is a slot 9 in which the edge part of an excavator bucket protrudes.
  • the slot 9 has a width which corresponds approximately to the wall thickness of the edge part 10 of the excavator bucket.
  • This slot 9 is filled with material during the manufacture of the tooth holder rear part 2, ie the holding arms 7, 8 are connected to one another in the part of the slot 9 by a connecting part 17. If the excavator bucket is now fixed on which the rear part of the tooth holder is to be fastened, the corresponding slot 9 is machined. A known method can be used for this, for example flame cutting.
  • the slot 9 can be cut out with sufficient accuracy so that the tooth holder is reliably fastened is possible, for example by welding the holding arms 7, 8 along their peripheral edge.
  • the tooth holder rear part can be used for excavator buckets in which the wall thickness of the edge section 10 is of different sizes. This can significantly reduce the number of tooth holder sizes, so that e.g. only about 2 different tooth holder sizes are required for a wall thickness range of the edge section 10 of the excavator bucket of approximately 20 mm to approximately 55 mm.
  • the inside, longer holding arm 7 has a pronounced curvature 11 over the area of the end of the edge section 10, which can optionally be interrupted by a longitudinal groove 12, see FIG. 3.
  • the holding arm 7 can also be designed as a solid body; it has to absorb the greater forces than the outside holding arm 8, which can only be about half as long in length as the inside holding arm 7.
  • the outside holding arm 8 has a relatively thin wall thickness, which is reinforced at the longitudinal edges by pronounced ribs 15.
  • the ribs 15 are of such a height that they have the same rib height as a crossbar 16 which reinforces the profile of the tooth holder. Characterized in that the ribs of the outside holding arm 8 open into the cross bar 16, this is additionally reinforced.
  • the tooth holder is expediently forged from a forged steel, which can be high-alloyed. Since the slot 9 is missing, the tooth holder forms a compact body, the connecting part 17 running between the inside and outside holding arms 7, 8.
  • the slot 9 is machined in the appropriate width, after which the attachment to the excavator shovel can then take place.
  • the slot 9 can be made in various ways. In addition to the flame cutting already mentioned, machining can also be provided to form the slot 9.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)

Abstract

The tooth mounting has a rear part (2) which consists of a longer mounting arm (7) on the inside and a shorter mounting arm (8) on the outside. The mounting arms (7, 8) are joined to one another during their manufacture. For fixing a tooth to an excavator bucket, the connecting part (17) between the two mounting arms (7, 8) is moved away to a width which approximately corresponds to the wall thickness of the marginal part (10) of the excavator bucket. <IMAGE>

Description

Die Erfindung betriff einen Zahnhalter eines auf einer baggerschaufel befestigbaren Baggerzahnes zur lösbaren Befestigung einer Zahnspitze auf seiner, über den Rand der Baggerschaufel vorstehenden Nase, wobei der Halter mit seinem Hinterteil die Randpartie der Baggerschaufel mit einem innenseitigen und längeren Haltearm und mit einem aussenseitigen und kürzeren Haltearm umgreift.The invention relates to a tooth holder of an excavator tooth which can be fastened to an excavator shovel for the releasable fastening of a tooth tip on its nose which projects beyond the edge of the excavator shovel, the holder with its rear part the edge part of the excavator shovel with an inside and longer holding arm and with an outside and shorter holding arm embraces.

Baggerzähne, die aus einem Zahnhalter und einer auf dieser lösbar befestigbaren Zahnspitze sind in vielen Ausführungen bekannt. Die Zahnspitze ist ein erheblichem Verschleiss unterworfener Teil des Baggerzahnes, weshalb dieser auswechselbar ausgebildet ist. Der im Schatten der Zahnspitze liegende Halter ist einem geringeren Verschleiss unterworfen; er hat aber die Aufgabe, eine zuverlässige Verbindung zwischen der Zahnspitze und der Baggerschaufel herzustellen.Excavator teeth, which consist of a tooth holder and a tooth tip that can be detachably fastened to it, are known in many designs. The tooth tip is a considerable part of the excavator tooth subject to wear, which is why it is designed to be replaceable. The holder lying in the shadow of the tooth tip is subject to less wear; however, it has the task of establishing a reliable connection between the tooth tip and the excavator bucket.

Die Halter der Baggerzähne sind meistens so gestaltet, dass sie auf der Innenseite der Baggerschaufel liegen und dort an ihrem Rand mit der Schaufelwand verschweisst sind.The holders of the excavator teeth are usually designed so that they lie on the inside of the excavator bucket and are welded to the bucket wall at their edge.

In vielen Fällen wäre es wünschbar, wenn der Halter auch auf der Aussenseite mit der Schaufelwand verschweisst werden könnte. Da aber die Wandstärke der Schaufelwand je nach der Grösse der Baggerschaufel erhebliche Unterschiede aufweist, müssen für die verschiedenen Wandstärken unterschiedliche Halter hergestellt werden. Dies bedeutet einen erheblichen Aufwand, sowohl bezüglich der Herstellkosten als auch der Lagerhaltung.In many cases it would be desirable if the holder could also be welded to the blade wall on the outside. But since the wall thickness of the blade wall depends on the size of the Excavator shovel has significant differences, different holders must be made for the different wall thicknesses. This means a considerable effort, both in terms of manufacturing costs and warehousing.

Es ist zwar ein Zahnhalter bekannt, der einen innenseitigen und einen aussenseitigen Haltearm aufweist, wobei die beiden Arme den Schaufelrand umgreifen. Damit eine Anpassung an verschiedene Wandstärken der Baggerschaufel möglich ist, ist der aussenseitige Haltearm vom Halter getrennt und wird erst bei der Montage des Zahnhalters mit diesem durch Schweissen verbunden. Die Herstellung dieser Verbindung ist jedoch recht schwierig und verlangt den Einsatz einer fachkundigen Person.A tooth holder is known, which has an inside and an outside holding arm, the two arms engaging around the blade edge. So that an adaptation to different wall thicknesses of the excavator bucket is possible, the outside holding arm is separated from the holder and is only connected to it by welding when the tooth holder is installed. However, making this connection is quite difficult and requires the use of a skilled person.

Hier setzt die Erfindung ein, der die Aufgabe zugrunde liegt, einen Zahnhalter der eingangs beschriebenen Art so weiter auszugestalten, dass ein nachträgliches Verschweissen des einen Haltearms mit dem übrigen Zahnhalter vermieden wird.This is where the invention comes in, which is based on the object of further developing a tooth holder of the type described at the outset in such a way that subsequent welding of one holding arm to the rest of the tooth holder is avoided.

Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass die Haltearme des Zahnhalterhinterteils miteinander durch eine Verbindungspartie verbunden sind. Hierbei kann die Verbindungspartie zur Befestigung des Zahnhalterhinterteils an einer Baggerschaufel auf diejenige Breite entfernbar sein, welche der Wandstärke des Schaufelrandes entspricht.This object is achieved according to the invention in that the holding arms of the tooth holder rear part are connected to one another by a connecting part. In this case, the connecting part for fastening the rear part of the tooth holder to an excavator bucket can be removable to the width which corresponds to the wall thickness of the bucket edge.

Die Erfindung ist in der Zeichnung in einem Ausführungsbeispiel dargestellt und nachfolgend beschrieben. Es zeigen

  • Fig. 1 einen Zahnhalter mit aufgesetzter Zahnspitze in einem Vertikalschnitt,
  • Fig. 2 eine Draufsicht des Zahnhalters ohne Zahnspitze und
  • Fig. 3 einen Schnitt des Zahnhalters längs der Linie III-III.
The invention is shown in the drawing in one embodiment and described below. Show it
  • 1 shows a tooth holder with an attached tooth tip in a vertical section,
  • Fig. 2 is a plan view of the tooth holder without a tooth tip and
  • Fig. 3 shows a section of the tooth holder along the line III-III.

Die Erfindung geht von der Ueberlegung aus, dass eine beliebige Anpassung des Zahnhalters an die jeweilige Wandstärke dann erreichbar ist, wenn der zwischen den beiden Haltearmen notwendige Abstand dann vorgesehen werden kann, wenn feststeht, für welche Baggerschaufel der einzelne Zahnhalter benötigt wird. Erst dann wird der notwendige Ausschnitt zwischen den beiden Haltearmen, z.B. durch Brennschneiden ausgespart.The invention is based on the consideration that any adaptation of the tooth holder to the respective wall thickness can be achieved if the necessary distance between the two holding arms can be provided when it is certain for which excavator shovel the individual tooth holder is required. Only then is the necessary cutout between the two holding arms, e.g. cut out by flame cutting.

Der in Figur 1 dargestellte Zahnhalter weist eine Halternase 1 auf, an der sich ein Zahnhalterhinterteil 2 anschliesst. Auf der Halternase 1 ist eine Zahnspitze 3 aufgesetzt, welche die Halternase 1 vollständig umgibt. In der Halternase ist eine Durchgangsbohrung 4 vorgesehen, in welche ein Haltestift, z.B. ein Scherspannstift, eingesetzt werden kann, dessen Enden in Bohrungen 5 der Zahnspitze ragen und damit die Zahnspitze 3 festhalten.The tooth holder shown in FIG. 1 has a holder lug 1, to which a tooth holder rear part 2 connects. A tooth tip 3 is placed on the holder nose 1, which completely surrounds the holder nose 1. A through hole 4 is provided in the holder nose, into which a holding pin, e.g. a shear spring pin can be used, the ends of which protrude into bores 5 of the tooth tip and thus hold the tooth tip 3 in place.

Der Zahnhalterhinterteil 2 weist zwei Haltearme auf, einen innenseitigen und längeren Haltearm 7 und einen aussenseitigen und kürzeren Haltearm 8 auf. Zwischen den Haltearmen 7, 8 befindet sich ein Schlitz 9, in dem die Randpartie einer Baggerschaufel ragt.The tooth holder rear part 2 has two holding arms, an inside and longer holding arm 7 and an outside and shorter holding arm 8. Between the holding arms 7, 8 there is a slot 9 in which the edge part of an excavator bucket protrudes.

Der Schlitz 9 weist eine solche Breite auf, welche etwa der Wandstärke der Randpartie 10 der Baggerschaufel entspricht. Dieser Schlitz 9 ist bei der Herstellung des Zahnhalterhinterteils 2 mit Material ausgefüllt, d.h. die Haltearme 7, 8 sind in der Partie des Schlitzes 9 miteinander durch eine Verbindungspartie 17 verbunden. Liegt nun die Baggerschaufel fest, auf welche der Zahnhalterhinterteil befestigt werden soll, wird der entsprechende Schlitz 9 eingearbeitet. Hierzu kann ein bekanntes Verfahren verwendet werden, z.B. das Brennschneiden. Das Ausschneiden des Schlitzes 9 kann hierbei mit einer ausreichenden Genauigkeit erfolgen, so dass eine zuverlässige Befestigung des Zahnhalters möglich ist, z.B. durch Schweissen der Haltearme 7, 8 längs ihres Umfangsrandes.The slot 9 has a width which corresponds approximately to the wall thickness of the edge part 10 of the excavator bucket. This slot 9 is filled with material during the manufacture of the tooth holder rear part 2, ie the holding arms 7, 8 are connected to one another in the part of the slot 9 by a connecting part 17. If the excavator bucket is now fixed on which the rear part of the tooth holder is to be fastened, the corresponding slot 9 is machined. A known method can be used for this, for example flame cutting. The slot 9 can be cut out with sufficient accuracy so that the tooth holder is reliably fastened is possible, for example by welding the holding arms 7, 8 along their peripheral edge.

Damit wird erreicht, dass der Zahnhalterhinterteil für Baggerschaufeln verwendet werden kann, bei denen die Wandstärke der Randpartie 10 unterschiedlich gross ist. Damit kann die Zahl der Zahnhaltergrössen erheblich verringert werden, sodass z.B. für einen Wandstärkenbereich der Randpartie 10 der Baggerschaufel von etwa 20 mm bis etwa 55 mm nur ca. 2 verschiedene Zahnhaltergrössen benötigt werden.It is thereby achieved that the tooth holder rear part can be used for excavator buckets in which the wall thickness of the edge section 10 is of different sizes. This can significantly reduce the number of tooth holder sizes, so that e.g. only about 2 different tooth holder sizes are required for a wall thickness range of the edge section 10 of the excavator bucket of approximately 20 mm to approximately 55 mm.

Aus Fig. 2 ist die Form des Zahnhalters von oben dargestellt. Der innenseitige, längere Haltearm 7 weist über dem Bereich des Endes der Randpartie 10 eine ausgeprägte Wölbung 11 auf, die gegebenenfalls durch eine längs verlaufende Rille 12, siehe Fig. 3, unterbrochen sein kann. Der Haltearm 7 kann aber auch als massiver Körper ausgebildet sein; er hat die grösseren Kräfte aufzunehmen als der aussenseitige Haltearm 8, der in seiner Länge nur etwa halb so lang wie der innenseitige Haltearm 7 sein kann. Zudem weist der aussenseitige Haltearm 8 eine verhältnismässig dünne Wandstärke auf, die an den längs verlaufenden Rändern durch ausgeprägte Rippen 15 verstärkt sind. Die Rippen 15 weisen eine solche Höhe auf, dass sie dieselbe Rippenhöhe aufweisen, wie ein Quersteg 16, der das Profil des Zahnhalters verstärkt. Dadurch, dass die Rippen des aussenseitigen Haltearmes 8 in den Quersteg 16 münden, wird dieser zusätzlich verstärkt.2 shows the shape of the tooth holder from above. The inside, longer holding arm 7 has a pronounced curvature 11 over the area of the end of the edge section 10, which can optionally be interrupted by a longitudinal groove 12, see FIG. 3. The holding arm 7 can also be designed as a solid body; it has to absorb the greater forces than the outside holding arm 8, which can only be about half as long in length as the inside holding arm 7. In addition, the outside holding arm 8 has a relatively thin wall thickness, which is reinforced at the longitudinal edges by pronounced ribs 15. The ribs 15 are of such a height that they have the same rib height as a crossbar 16 which reinforces the profile of the tooth holder. Characterized in that the ribs of the outside holding arm 8 open into the cross bar 16, this is additionally reinforced.

Der Zahnhalter wird zweckmässig aus einem Schmiedestahl geschmiedet, welcher hochlegiert sein kann. Da der Schlitz 9 fehlt, bildet der Zahnhalter einen kompakten Körper, wobei zwischen dem innenseitigen und dem aussenseitigen Haltearm 7, 8 die Verbindungspartie 17 verläuft.The tooth holder is expediently forged from a forged steel, which can be high-alloyed. Since the slot 9 is missing, the tooth holder forms a compact body, the connecting part 17 running between the inside and outside holding arms 7, 8.

Soll der Zahnhalter an einer Baggerschaufel befestigt werden, wird der Schlitz 9 in der entsprechenden Breite eingearbeitet, worauf dann die Befestigung an der Baggerschaufel erfolgen kann. Der Schlitz 9 kann auf verschiedene Weise hergestellt werden. Neben dem bereits erwähnten Brennschneiden kann auch eine spanende Bearbeitung vorgesehen werden, um den Schlitz 9 zu bilden.If the tooth holder is to be attached to an excavator shovel, the slot 9 is machined in the appropriate width, after which the attachment to the excavator shovel can then take place. The slot 9 can be made in various ways. In addition to the flame cutting already mentioned, machining can also be provided to form the slot 9.

Claims (6)

1. Zahnhalter eines auf einer Baggerschaufel befestigbaren Baggerzahnes zur lösbaren Befestigung einer Zahnspitze (3) auf seiner, über den Rand (10) der Baggerschaufel vorstehenden Nase (1), wobei der Zahnhalter mit seinem Hinterteil (2) die Randpartie der Baggerschaufel mit einem innenseitigen und längeren Haltearm (7) und mit einem aussenseitigen und kürzeren Haltearm (8) umgreift, dadurch gekennzeichnet, dass die Haltearme (7, 8) des Zahnhalterhinterteils (2) miteinander durch eine Verbindungspartie (17) verbunden sind.1. Tooth holder of an excavator tooth that can be fastened on an excavator shovel for the detachable fastening of a tooth tip (3) on its nose (1) projecting over the edge (10) of the excavator shovel, the tooth holder with its rear part (2) having the inside of the excavator shovel with an inside and longer holding arm (7) and with an outside and shorter holding arm (8), characterized in that the holding arms (7, 8) of the tooth holder rear part (2) are connected to one another by a connecting part (17). 2. Zahnhalter nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindungspartie (17) zur Befestigung des Zahnhalterhinterteils (2) an einer Baggerschaufel auf diejenige Breite entfernbar ist, welche der Wandstärke der Randpartie (10) der Baggerschaufel entspricht.2. Tooth holder according to claim 1, characterized in that the connecting part (17) for fastening the tooth holder rear part (2) on an excavator shovel can be removed to the width which corresponds to the wall thickness of the edge section (10) of the excavator shovel. 3. Zahnhalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der aussenseitige Haltearm (8) etwa die halbe Länge des innenseitigen Haltearmes (7) aufweist.3. Tooth holder according to claim 1 or 2, characterized in that the outside holding arm (8) has approximately half the length of the inside holding arm (7). 4. Zahnhalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der aussenseitige Haltearm (8) zwei längs verlaufende Randrippen (15) aufweist, welche in einen, nach unten gerichteten Quersteg (16) übergehen.4. Tooth holder according to claim 1 or 2, characterized in that the outer holding arm (8) has two longitudinal edge ribs (15) which merge into a downward transverse web (16). 5. Zahnhalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass auf dem Rücken des innenseitigen Haltearmes (7) zwei längs verlaufende Randrippen beidseits einer Rille (12) angeordnet sind.5. Tooth holder according to claim 1 or 2, characterized in that on the back of the inside holding arm (7) two longitudinal edge ribs are arranged on both sides of a groove (12). 6. Zahnhalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der innenseitige Haltearm (8) über dem Ende der Randpartie (10) der Baggerschaufel eine ausgeprägte Wölbung (11) aufweist.6. Tooth holder according to claim 1 or 2, characterized in that the inside holding arm (8) over the end of the edge portion (10) of the excavator shovel has a pronounced curvature (11).
EP19900111412 1989-06-26 1990-06-18 Tooth mounting for fixing a tooth to an excavator bucket Expired - Lifetime EP0405274B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2375/89 1989-06-26
CH237589A CH679939A5 (en) 1989-06-26 1989-06-26

Publications (2)

Publication Number Publication Date
EP0405274A1 true EP0405274A1 (en) 1991-01-02
EP0405274B1 EP0405274B1 (en) 1994-05-04

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Application Number Title Priority Date Filing Date
EP19900111412 Expired - Lifetime EP0405274B1 (en) 1989-06-26 1990-06-18 Tooth mounting for fixing a tooth to an excavator bucket

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EP (1) EP0405274B1 (en)
CH (1) CH679939A5 (en)
DE (1) DE59005590D1 (en)
ES (1) ES2052104T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103774713A (en) * 2013-11-26 2014-05-07 广西柳工机械股份有限公司 Bucket tooth assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284482B (en) * 2016-08-30 2019-02-12 山东明宇重工机械有限公司 A kind of loading machine teeth and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1829851A (en) * 1929-11-25 1931-11-03 American Manganese Steel Co Replaceable thimble point dipper tooth
US1834514A (en) * 1928-11-09 1931-12-01 American Manganese Steel Co Excavating point
US2108075A (en) * 1936-05-20 1938-02-15 Bucyrus Erie Co Dipper tooth
DE7443383U (en) * 1974-01-02 1975-05-07 Mantovani T Tooth setting for bucket and grab excavators
US4027408A (en) * 1975-01-28 1977-06-07 Ferdinando Ramella Digger teeth with interlocking tooth elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834514A (en) * 1928-11-09 1931-12-01 American Manganese Steel Co Excavating point
US1829851A (en) * 1929-11-25 1931-11-03 American Manganese Steel Co Replaceable thimble point dipper tooth
US2108075A (en) * 1936-05-20 1938-02-15 Bucyrus Erie Co Dipper tooth
DE7443383U (en) * 1974-01-02 1975-05-07 Mantovani T Tooth setting for bucket and grab excavators
US4027408A (en) * 1975-01-28 1977-06-07 Ferdinando Ramella Digger teeth with interlocking tooth elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103774713A (en) * 2013-11-26 2014-05-07 广西柳工机械股份有限公司 Bucket tooth assembly

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DE59005590D1 (en) 1994-06-09
CH679939A5 (en) 1992-05-15
EP0405274B1 (en) 1994-05-04
ES2052104T3 (en) 1994-07-01

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