EP0472122B1 - Dent remplaçable pour godet de terrassement - Google Patents

Dent remplaçable pour godet de terrassement Download PDF

Info

Publication number
EP0472122B1
EP0472122B1 EP91113750A EP91113750A EP0472122B1 EP 0472122 B1 EP0472122 B1 EP 0472122B1 EP 91113750 A EP91113750 A EP 91113750A EP 91113750 A EP91113750 A EP 91113750A EP 0472122 B1 EP0472122 B1 EP 0472122B1
Authority
EP
European Patent Office
Prior art keywords
section
tooth
seen
upper side
cutting edge
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 - Lifetime
Application number
EP91113750A
Other languages
German (de)
English (en)
Other versions
EP0472122A1 (fr
Inventor
Ronald William Fellner
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP0472122A1 publication Critical patent/EP0472122A1/fr
Application granted granted Critical
Publication of EP0472122B1 publication Critical patent/EP0472122B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E02F9/2858—Teeth characterised by shape

Definitions

  • the invention relates to a clip-on tooth tip for a loader bucket with a curved top, a bottom side, which has a flat front section when viewed from the side and an adjoining curved rear section and whose front flat section forms a front cutting edge with the top, two has connection means in the form of a cavity receiving a shaft for connecting the tooth tip to the blade between the top and the bottom side.
  • tooth tips are subject to heavy wear and therefore have replaceable tooth tips.
  • the cheapest form of tooth tips is wedge-shaped with straight side surfaces. This shape triggers great frictional forces when the ground is broken open, which is why the machine is extremely powerful must be trained.
  • a tooth has already been proposed for a wheel excavator (US Pat. No. 4,642,920), the shaft of which can be used in a U-shaped socket on a bucket.
  • wheel excavators are usually used to clear rocky rock and are equipped with about fifteen spoons running on a circular arc, on the three sides of which nine identical teeth are provided.
  • Each tooth has an upper side which, seen from the side, consists of a straight section adjoining the tooth tip and a concave section adjoining this section, a bottom side which, seen from the side, has a flat front section and an adjoining section bent rear portion and the front flat portion forms a front cutting edge with the top, two side surfaces extending between the top and the bottom side, which are bent centrally outwards, and provided with a back, a first section adjoining the cutting edge the upper side is converging when viewed from above and the upper and lower sides have depressions.
  • Such a tooth is guided in and out of the ground on a circular arc section and may be suitable for a scratching excavation or stripping movement. However, he cannot improve the digging performance of a loader shovel.
  • Document US-A-4 321 762 shows teeth on an excavator bucket beveled side surfaces. Further suggestions for the design of the teeth can be found in the documents US-A-4 123 861, US-A-4 251 933 or US-A-4 470 219. But all solutions disclosed in the aforementioned documents improve the penetration of the teeth the ground not significantly. In our EP-A1-0 411 486, which is to be taken into account with regard to the novelty, a shape for the tooth tips is already proposed which enables the tooth tips to easily penetrate into the ground.
  • the penetration of the tooth tips into the ground and thus the digging performance of the blade is substantially improved in that the curved rear section of the bottom side is convex, a first section of the upper side adjoining the cutting edge converges from above, the upper side from the side seen concave, the bottom side from the front cutting edge to the back from below converging continuously and each side surface is concave.
  • the convex section of the base allows material to be relieved when the bucket is tilted upwards.
  • the relatively long flat portion of the bottom creates a horizontal sole surface so that the blade is held in a flat surface.
  • the converging portion of the top causes a force downward on the tooth tip and on the blade when the blade is moved horizontally.
  • a second section extending to the rear and diverging section can also be connected to the first section of the upper side.
  • a loading shovel 10 can be seen, which is provided on the front side with a plurality of cutting teeth with replaceable tooth tips 12.
  • the tooth tips serve to break up the floor and are at a transverse distance from one another.
  • the bucket 10 is connected to a loader 13 via a linkage 14.
  • the tooth tips 12 are placed on tooth holders, which in turn are firmly connected to the front cutting edge of the blade 10.
  • the tooth tips 12 have cavities 18 which are open towards the back of the tooth tips. The tooth tips can thus be pushed onto the projecting tooth holders and fastened in a conventional manner.
  • Each tooth tip 12 has an upper side 20 which is concave, a lower side 22 which has a first flat section 23 and an adjoining convex section 24, and two side surfaces 26.
  • the concave upper side 20 and the flat section 23 of the lower side 22 intersect and thereby form a front cutting edge 28.
  • the back 30 of each tooth tip 12 is provided with fastening means for connection to the tooth holder. This includes the cavity 18.
  • the flat first section 23 of the bottom side 22 is located lower than the bottom of the blade, which, however, cannot be seen in FIG. 1 of the drawing.
  • the convex portion 24 of the bottom 22 allows the blade 10 to be tilted more easily. A sharp approach or angle would make this difficult.
  • the top 20 is hourglass-like configured, as can be seen in FIG. 2 in particular from the side edges 40 which form the upper side 20 with the side surfaces 26.
  • Fig. 2 shows, when looking at the top from the front cutting edge 28 towards the back 30, that the top 20 first converges and then diverges, creating the hourglass-like configuration.
  • the concave configuration of the upper side 20 with reference to FIG. 3 generates a pressure acting on the teeth downwards in use, so that the blade can be held in a horizontal position more easily when it travels through the material.
  • the flat section 23 of the bottom side 22 results in a horizontal sole for the tooth or its tooth tip 12, which further supports the flat or horizontal movement of the blade.
  • the flat section 23 of the bottom side 22 is widest at the cutting edge 28 or widened outwards and tapers continuously up to the back of the tooth tip 12.
  • the side surfaces 26 between the upper side 20 and the lower side 22 are formed like plowshares, so that concave sides are formed.

Landscapes

  • 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)

Claims (2)

  1. Dent emboîtable pour une pelle (10) de chargeuse, avec un côté supérieur courbe (20), avec un côté de fond (22) présentant, vu de côté, une partie avant plate (23) à laquelle se raccorde une partie arrière courbe (24), et dont la partie avant plate (23) forme avec le côté supérieur (20) un tranchant avant (28), avec deux faces latérales (26) s'étendant entre le côté supérieur (20) et le côté de fond (22), et avec un côté arrière (30) présentant un moyen de raccordement, sous la forme d'une cavité (18) recevant un support, pour le raccordement de la dent à la pelle (10), caractérisée en ce que la partie arrière courbe (24) du côté de fond (22) est réalisée convexe, une première partie du côté supérieur (20), se raccordant au tranchant (28), est réalisée convergente vue de dessus, le côté supérieur (20) est réalisé concave vu de côté, le côté de fond (22) est réalisé, vu de dessous, convergent sans interruption depuis le tranchant avant (28) jusqu'au côté arrière (30), et chaque face latérale (26) est réalisée concave.
  2. Dent selon la revendication 1, caractérisée en ce qu'à la première partie du côté supérieur (20) se raccorde une seconde partie qui s'étend jusqu'au côté arrière (30) et est divergente, vue de dessus.
EP91113750A 1990-08-21 1991-08-16 Dent remplaçable pour godet de terrassement Expired - Lifetime EP0472122B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US570485 1990-08-21
US07/570,485 US5018283A (en) 1989-08-04 1990-08-21 Loader bucket tooth

Publications (2)

Publication Number Publication Date
EP0472122A1 EP0472122A1 (fr) 1992-02-26
EP0472122B1 true EP0472122B1 (fr) 1994-04-06

Family

ID=24279833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113750A Expired - Lifetime EP0472122B1 (fr) 1990-08-21 1991-08-16 Dent remplaçable pour godet de terrassement

Country Status (4)

Country Link
US (1) US5018283A (fr)
EP (1) EP0472122B1 (fr)
CA (1) CA2045374C (fr)
DE (1) DE59101319D1 (fr)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735890B2 (en) * 2001-07-06 2004-05-18 Esco Corporation Wear assembly
EP0649945B1 (fr) * 1993-08-30 1996-04-17 Baz Service Ag Dent d'excavatrice
US5782019A (en) * 1995-11-29 1998-07-21 H & L Tooth Company High strength earth working tooth
USD399511S (en) 1995-11-29 1998-10-13 H & L Tooth Company Digging tooth
USD420014S (en) * 1998-03-02 2000-02-01 Componenta Wear Parts Ab Tooth system
JP2006207113A (ja) * 1999-10-07 2006-08-10 Kazutoshi Ishizuka 掘削爪
USD436116S1 (en) 1999-10-21 2001-01-09 H&L Tooth Co. Digging tooth
USD435567S (en) 1999-10-21 2000-12-26 H&L Tooth Co. Digging tooth
US6993861B2 (en) 2001-07-06 2006-02-07 Esco Corporation Coupling for excavating wear part
US9003681B2 (en) * 2006-09-18 2015-04-14 Deere & Company Bucket teeth having a metallurgically bonded coating and methods of making bucket teeth
USD567825S1 (en) * 2007-07-23 2008-04-29 H&L Tooth Company Upper corner lip shroud
USD567826S1 (en) * 2007-07-23 2008-04-29 H&L Tooth Company Lower corner lip shroud
USD567827S1 (en) * 2007-07-23 2008-04-29 H & L Tooth Company Lip shroud
USD602505S1 (en) * 2007-12-13 2009-10-20 Hensley Industries, Inc. Ground engaging wear member
USD576644S1 (en) * 2008-02-28 2008-09-09 H&L Tooth Company Lip shroud
US8069591B2 (en) * 2009-10-02 2011-12-06 Jerauld Dunn Multi-purpose bucket arrangement
JP5210415B2 (ja) 2011-05-09 2013-06-12 株式会社小松製作所 建設機械のバケットツース
USD707264S1 (en) 2011-10-07 2014-06-17 Caterpillar Inc. Adapter for a ground engaging machine implement
USD727980S1 (en) 2014-04-08 2015-04-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD706311S1 (en) 2011-10-07 2014-06-03 Caterpillar, Inc. Tip for a ground engaging machine implement
USD707263S1 (en) 2011-10-07 2014-06-17 Caterpillar, Inc. Tip for a ground engaging machine implement
USD706307S1 (en) 2011-10-07 2014-06-03 Caterpillar, Inc. Adapter for a ground engaging machine implement
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
USD706312S1 (en) 2011-10-07 2014-06-03 Caterpiller, Inc. Tip for a ground engaging machine implement
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
USD706840S1 (en) 2011-10-07 2014-06-10 Caterpillar, Inc. Tip for a ground engaging machine implement
USD706839S1 (en) 2011-10-07 2014-06-10 Caterpillar, Inc. Tip for a ground engaging machine implement
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
USD774567S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD775243S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD775241S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD774565S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD774566S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD775242S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD774108S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD774109S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD774564S1 (en) 2015-08-12 2016-12-20 Caterpillar Inc. Tip for a ground engaging machine implement
USD775240S1 (en) 2015-08-12 2016-12-27 Caterpillar Inc. Tip for a ground engaging machine implement
USD775673S1 (en) 2015-08-12 2017-01-03 Caterpillar Inc. Tip for a ground engaging machine implement
USD774110S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD800798S1 (en) * 2015-10-02 2017-10-24 Pearson Engineering Limited Plowing tine tip
USD803900S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806759S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803901S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD803275S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD803274S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD806140S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803902S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806758S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803899S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806141S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD805112S1 (en) 2016-12-15 2017-12-12 Caterpillar Inc. Tip for a ground engaging machine implement
USD806142S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803898S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD803897S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD840441S1 (en) 2016-12-15 2019-02-12 Caterpillar Inc. Adapter for a ground engaging machine implement
USD805562S1 (en) 2016-12-15 2017-12-19 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806139S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD832310S1 (en) 2017-08-30 2018-10-30 Caterpillar Inc. Adapter for a ground engaging machine implement
USD888785S1 (en) 2019-03-07 2020-06-30 Caterpillar Inc. Adapter for a ground engaging machine implement
USD905765S1 (en) 2019-03-07 2020-12-22 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945499S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945498S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121289A (en) * 1962-02-23 1964-02-18 Esco Corp Retainer for excavating tooth
US3312504A (en) * 1963-05-07 1967-04-04 Lokomo Oy Attachment means for ice cutter tooth on road grader blade
US3729845A (en) * 1971-03-01 1973-05-01 Barber Greene Co Self contained retaining means for removable digging tooth
IT1027392B (it) * 1975-01-28 1978-11-20 Ramella P V Dente per benne di macchine per movimento terra
US4136469A (en) * 1975-02-21 1979-01-30 Zepf Hans Rudolf Shovel tooth
US3959901A (en) * 1975-06-30 1976-06-01 Caterpillar Tractor Co. High strength earth working penetration tooth
US4123861A (en) * 1976-08-18 1978-11-07 Hemphill Charles W Method of excavating earth with a bucket
FR2381137A1 (fr) * 1977-02-18 1978-09-15 Esco Corp Dent excavatrice pour godet de chargeuse sur pneumatiques ou analogue
CA1105525A (fr) * 1978-06-21 1981-07-21 Western Rock Bit Company Limited Traduction non-disponible
US4251933A (en) * 1979-03-05 1981-02-24 Hemphill Charles W Lip and teeth in combination with a flat bottom bucket
US4321762A (en) * 1979-10-17 1982-03-30 Hemphill Charles W Digging tooth apparatus for V bottom bucket
USD284010S (en) 1983-04-07 1986-05-27 Terry Voyce Loader tooth for a front end loader
US4470210A (en) * 1983-05-25 1984-09-11 Esco Corporation Mounting for excavating implement and method
DE3444563A1 (de) * 1984-12-06 1986-06-19 Lehnhoff Hartstahl GmbH & Co, 7570 Baden-Baden Baggerzahn-anordnung
US4616433A (en) * 1985-02-12 1986-10-14 Caterpillar Inc. Ripping bucket arrangement
DE3611493A1 (de) * 1986-04-05 1987-10-15 Orenstein & Koppel Ag Grabschaufel fuer bagger
US4761900A (en) * 1986-12-04 1988-08-09 Esco Corporation Excavating tooth assembly
US4949481A (en) * 1989-08-04 1990-08-21 Deere & Company Digging tooth assembly

Also Published As

Publication number Publication date
DE59101319D1 (de) 1994-05-11
CA2045374C (fr) 1995-06-20
US5018283A (en) 1991-05-28
EP0472122A1 (fr) 1992-02-26

Similar Documents

Publication Publication Date Title
EP0472122B1 (fr) Dent remplaçable pour godet de terrassement
DE69005732T2 (de) Baggerzahn.
DE2514070C2 (de) Baggerlöffel
DE2733543C3 (de) Baggertieflöffel
DE2500217C3 (de) Vorrichtung zum Anschließen auswechselbarer unterschiedlicher Arbeitswerkzeuge eines Baggers o.dgl
DE2140111A1 (de) Zweiteilige Schaufelkante für Flachbagger od. dgl
DE4201924C2 (de) Schlepp-Schürfkübel
DE112014003072T5 (de) Haltesysteme für Bodeneingriffswerkzeuge
DE3245992C2 (fr)
US5887921A (en) Shovel
DE2004922A1 (de) Erdbearbeitungswerkzeug
DE2714553B2 (de) Zweiteiliger Baggerzahn
DE102008027549C5 (de) Schweißadapter mit Rodungsmesser
DE2722648B2 (de) Vorrichtung zum Aufbrechen eines Grabenprofils
DE19512714C2 (de) Böschungsprofiliergerät
DE1634691B1 (de) Arbeitsgerät für Baumaschinen, insbesondere Bagger mit mehreren meisselartigen Zähnen
DE4292949C2 (de) Baumerntevorrichtung
DE845282C (de) Zusatzgeraet fuer Pfluege in Form eines etwa meisselfoermigen Werkzeugs zur Lockerung der Furchensohle
DE748223C (de) Bagger mit einem an einem Ausleger gelagerten, maschinell nach zwei entgegengesetzten Rirchtungen verschiebbaren Grabwerkzeug
DE9313568U1 (de) Grabvorrichtung für Erdbaumaschinen
DE3244711C2 (de) Eimer, Schaufel, Becher oder dergl. für Bagger, Aufnahmegeräte oder dergl.
DE69738030T2 (de) Schaufel
DE2119103C3 (de) Planierschild, insbesondere für Raupenfahrzeuge
DE2308085C3 (de) Löffelbagger
DE3145306A1 (de) Geraet zum zerkleinern von baumstuempfen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT

17P Request for examination filed

Effective date: 19920116

17Q First examination report despatched

Effective date: 19930423

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT

REF Corresponds to:

Ref document number: 59101319

Country of ref document: DE

Date of ref document: 19940511

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940418

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000801

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000811

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000823

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000930

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010831

BERE Be: lapsed

Owner name: DEERE & CY

Effective date: 20010831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050816