US20040010949A1 - Coupling system for the teeth of an excavator - Google Patents

Coupling system for the teeth of an excavator Download PDF

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Publication number
US20040010949A1
US20040010949A1 US10/381,983 US38198303A US2004010949A1 US 20040010949 A1 US20040010949 A1 US 20040010949A1 US 38198303 A US38198303 A US 38198303A US 2004010949 A1 US2004010949 A1 US 2004010949A1
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US
United States
Prior art keywords
lugs
tooth member
rectilinear
end sections
straight section
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.)
Abandoned
Application number
US10/381,983
Other languages
English (en)
Inventor
Lluis Laguarda
Nil Vallve I Bertran
Jorge Pallas Moreno
Fermin Sanchez Guisado
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.)
Metalogenia SA
Original Assignee
Metalogenia SA
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 Metalogenia SA filed Critical Metalogenia SA
Assigned to METALOGENIA, S.A. reassignment METALOGENIA, S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MORALES LAGUARDA, LLUIS, PALLAS MORENO, JORGE, SANCHEZ GUISADO, FERMIN, VALLVE I BERTRAN, NIL
Publication of US20040010949A1 publication Critical patent/US20040010949A1/en
Abandoned 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
    • 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
    • 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

Definitions

  • This invention relates to an engagement system for digger teeth, particularly for the teeth formed by the association of an adapter member, which is attached to the active edge of the bucket or shovel of the digger or the like, with a tooth member, which is engageable with said adapter member and can be retained therein by means of one or more pins.
  • the invention relates to the case in which one of the afore-mentioned adapter member and tooth member, preferably the tooth member, extends in the axial direction in two rectilinear lugs which, being noticeably parallel to one another, emerge cantilevered from the mouth of a central housing in the axial direction and complement respective rectilinear, open recesses arranged, also in the axial direction, on the adapter member, which, at the same time, is provided with an axial cantilever projection that complements said central housing in the tooth member, said tooth member lugs having their inner surface, which is in contact with the back of the adapter member recesses, as a flat or slightly arched curvilinear surface.
  • the solution has been adopted to shape the tooth member lugs in a closed manner, that is, whereby they have a straight section that has a concave part facing the adapter member recesses, the backs of which are complementarily convex with respect to the afore-mentioned part.
  • One feature of the invention consists of the two end sections of the straight section of each tooth member lug, impinging on the intermediate section at an angle of between approximately 10° and 40°.
  • the invention comprises the fact that the differentiated intermediate section of the straight section of the tooth member lugs can have a curvilinear or rectilinear configuration, without excluding other composite configurations (mixed, fractioned, etc).
  • the invention comprises the fact that the end sections of the straight section of each lug can have a rectilinear or curvilinear configuration, without excluding other possibilities, including the cases where both end sections have the same or different configuration, the same or different length in any of the preceding cases, and an angle of incidence on the differentiated intermediate section, which is the same or different for the two end sections of one and the same straight section.
  • Another feature of the invention lies in the fact that the two lugs of one and the same tooth member can be specularly symmetrical or symmetrical with respect to one point.
  • a further feature of the invention lies in the fact that the tooth member lugs have diametrically opposite orifices which, being positioned in one of the end sections or in the differentiated intermediate section, are aligned in registration with an orifice which is traversed by the cantilever projection of the adapter member.
  • the two lesser sides of the straight section of the tooth member lugs are rectilinear and noticeably parallel to one another and that the straight section of each tooth member lug has an equal width along its whole extension, however, it can have one or more areas of reduced extension with a different width from the prevailing width.
  • Another feature of the invention lies in the fact that in the tooth member lugs, the longer end sections are facing the direction of the stresses to be withstood.
  • FIG. 1 is an angular exploded perspective view of the adapter and tooth members according to the invention, viewed from their mutual engagement parts.
  • FIG. 2 is a side elevation view of the adapter and tooth elements of the preceding figure in their engagement position.
  • FIG. 3 is a top plan view of the adapter and tooth members of the preceding figure.
  • FIG. 4 is a diagrammatic view of an engaged adapter and tooth ensemble according to the invention, in which a downward vertical stress is supposedly applied to the end of the tooth, with an indication of the resulting reactions caused by said stress.
  • FIG. 5 is a diagrammatic cross section along the line V-V of FIG. 4, showing the effects that the downward vertical stress causes to the tooth member lugs.
  • FIG. 6 is a similar view to FIG. 4, showing the adapter and tooth ensemble in which the vertical stress is supposedly applied in an upward direction to the end of the tooth, with an indication of the reactions caused by said stress.
  • FIG. 7 is a diagrammatic cross section along the line VII-VII of FIG. 6, showing the effects which the upward vertical stress causes on the tooth member lugs.
  • FIG. 8 is a similar cross section to that of FIGS. 5 and 7, showing the position of the tooth member lugs, housed in the adapter member recesses, and the limit angles between which, in use, the end sections of the tooth member lugs must be with respect to the vertical that is perpendicular to the central axis of said lugs, with three possibilities for positioning the housing for the engagement retaining pin being indicated by dotted lines.
  • FIG. 9 is a cross section similar to that of the preceding figure, in which the differentiated intermediate section and the end sections of the straight section of both tooth member lugs have a rectilinear configuration and the angle of incidence of the end sections on the differentiated intermediate section is constant.
  • FIG. 10 is a similar section to that of the preceding figure, in which the tooth member lugs are symmetrical to one another with respect to one point, with the straight section of the lugs having its the end sections, rectilinear and of a different length on each and those of one being in a staggered position with respect to the other, and the differentiated intermediate section having a curvilinear shape, with the position of the housing for the retention pin also being indicated by dotted lines.
  • FIG. 11 is a cross section similar to that of FIG. 10 in which the tooth member lugs are specularly symmetrical having rectilinear end sections of different lengths and a curvilinear shaped differentiated intermediate section, the short end sections being, in this case, in a lower position, it being possible to place them in a lower position in another case, not specifically shown.
  • FIG. 12 is a diagrammatic view of some of the various shapes that the straight section of a tooth member lug can adopt.
  • FIG. 13 is a diagrammatic view of half of a section similar to that of FIGS. 5, 7 and 8 to 11 , showing a straight section of a tooth member lug where the intermediate section has a different width, and the back of the adapter member recess, which is provided with a projection that complements the depression in the differentiated intermediate section.
  • FIG. 1 shows an angularly exploded perspective view of an ensemble made up of an adapter member 1 and a tooth member 2 .
  • Adapter member 1 is made up of a central core 3 from which there extend in the axial direction, on one side, a fork 4 , for engaging adapter member 1 on the active edge of the bucket or shovel of a digger, and, on the other side, a cantilever projection 5 , or nose, having a prismatic shape.
  • Central core 3 is provided, on both sides, with respective rectilinear recesses 6 and, in the transverse direction, with an orifice for housing a retention pin, with both arrangements being positioned so as not to reduce the section of nose 5 .
  • Tooth member 2 is made up of central core 7 which, in the axial direction, comprises a central housing 8 , from which there emerge from the mouth 9 thereof respective rectilinear lugs 10 , and a working point 11 .
  • rectilinear lugs 10 of tooth member 2 are housed in rectilinear recesses 6 of adapter 1 , with the engagement being maintained, in one embodiment example, by means of a passage 12 , made up of orifices provided in alignment in rectilinear lugs 10 of tooth member 2 and in central core 3 of adapter member 1 , into which a retention pin 13 is inserted.
  • the object of the invention consists, as shown in FIGS. 5 and 7, in relation to FIGS. 4 and 6, in the fact that the straight section of each of rectilinear lugs 10 of tooth member 2 , which is concave in one part 14 and substantially complements the convex profile of back 15 of the rectilinear recesses of adapter member 1 , has, as detailed in FIG. 8, two end sections 10 A which meet in a convergent fashion in an intermediate section 10 B differentiated from the afore-mentioned sections.
  • said sections 10 A y 10 B have been separated by imaginary dotted lines M.
  • a stress Fs applied in a downward vertical direction on working point 11 of tooth member 2 causes reactions Rs1 on nose 5 and Rs2 on the upper edge of rectilinear recesses 6 , which result in a component force Cs, which tends to apply end sections 10 A of rectilinear lugs 10 against backs 15 of rectilinear recesses 6 .
  • the tendency of end sections 10 A of rectilinear lugs 10 of tooth member 2 against backs 15 of rectilinear recesses 6 is indicated in dotted lines.
  • FIG. 8 indicates various possible positions of passage 12 suitable for inserting retention pin 13 .
  • FIGS. 5, 7 and 8 illustrate the case where, in the straight section of rectilinear lugs 10 , end sections 10 A are rectilinear and equal and differentiated intermediate section 10 B is curvilinear, being separated from each other by the imaginary lines M.
  • FIG. 9 illustrates the case where, in the straight section of rectilinear lugs 10 , end sections 10 A are rectilinear and equal and differentiated intermediate section 10 B is rectilinear, with a possible passage 12 for a retention pin also being indicated.
  • FIGS. 10 and 11 illustrate the case where rectilinear lugs 10 show their end sections 10 A and 10 C, with a rectilinear shape, at a different length and with an equal angle of incidence on differentiated intermediate section 10 B, positioned in FIG. 10 symmetrical with respect to one point, whereas in FIG. 1 the symmetrical arrangement is specular.
  • the case in this last figure can adopt an inverse position, in which end sections 10 A, the longer ones, are positioned underneath end sections 10 C, the shorter ones.
  • the longer end sections 10 A are facing the direction of the stresses to be withstood.
  • FIG. 12 illustrates some of the different variations of the straight section that can be adopted when manufacturing rectilinear lugs 10 .
  • the straight section of a rectilinear lug 16 showing its end sections 16 A with a curvilinear shape and differentiated intermediate section 16 B with a curvilinear shape with a curve different to that of end sections 16 A.
  • the straight section of rectilinear lug 17 shows its end sections 17 A with a curvilinear shape and its differentiated intermediate section 17 with a rectilinear shape.
  • the straight section of rectilinear lug 18 shows its end sections 18 A with a rectilinear shape and its differentiated intermediate section 18 B with a curvilinear shape.
  • the straight section of rectilinear lug 19 shows its end sections 19 A with a rectilinear shape, the same as its differentiated intermediate section 1 9 B.
  • a great variety of straight sections can be obtained by combining the end sections according to their length, trajectory and angle of incidence with straight, curved, short, long, etc. differentiated intermediate sections.
  • FIG. 13 shows half a section of the engagement between adapter member 1 and tooth member 2 similar to that shown in FIGS. 5, 7 and 8 to 11 , which illustrates a straight section of a rectilinear lug 20 where its differentiated intermediate section 20 B has a different width to end sections 20 A, and back 15 of rectilinear recess 6 of adapter member 1 is provided with a projection 21 which complements depression 22 in differentiated intermediate section 20 B.
  • the lugs are completely closed, working in a compressed state when vertical stress, either upward or downward, is applied to the ensemble.

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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)
  • Earth Drilling (AREA)
  • Agricultural Machines (AREA)
US10/381,983 2000-10-03 2001-10-02 Coupling system for the teeth of an excavator Abandoned US20040010949A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200002454A ES2168988B1 (es) 2000-10-03 2000-10-03 Sistema de acoplamiento para los dientes de una excavadora.
ESP200002454 2000-10-03
PCT/ES2001/000363 WO2002029167A1 (es) 2000-10-03 2001-10-02 Sistema de acoplamiento para los dientes de una excavadora

Publications (1)

Publication Number Publication Date
US20040010949A1 true US20040010949A1 (en) 2004-01-22

Family

ID=8495238

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/381,983 Abandoned US20040010949A1 (en) 2000-10-03 2001-10-02 Coupling system for the teeth of an excavator

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US (1) US20040010949A1 (es)
EP (1) EP1411178A1 (es)
JP (1) JP2004510900A (es)
KR (1) KR20030036881A (es)
CN (1) CN1468340A (es)
AU (1) AU2001291901A1 (es)
BR (1) BR0114331A (es)
CA (1) CA2424322A1 (es)
ES (1) ES2168988B1 (es)
MX (1) MXPA03002893A (es)
WO (1) WO2002029167A1 (es)
ZA (1) ZA200302463B (es)

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080695A1 (en) * 2004-02-10 2005-09-01 Italricambi Spa Tooth for an excavator bucket
US20120260540A1 (en) * 2009-12-11 2012-10-18 Cqms Pty Ltd excavator wear assembly
WO2013090994A1 (en) * 2011-12-21 2013-06-27 L & H Industrial Australia Pty Ltd Ground engaging tools
AU2013202355B2 (en) * 2006-02-17 2014-10-02 Esco Group Llc Wear assembly
US8943717B2 (en) 2011-10-08 2015-02-03 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
WO2015017167A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground engaging tool assembly
WO2015017169A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground engaging tool assembly
WO2015017168A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground engaging tool assembly
WO2015017262A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground engaging tool assembly
WO2015017261A1 (en) 2013-08-01 2015-02-05 Caterpillar Inc. Ground engaging tool assembly
USD727368S1 (en) 2011-10-07 2015-04-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD727369S1 (en) 2011-10-07 2015-04-21 Caterpillar Inc. Adapter for a ground engaging machine implement
USD727367S1 (en) * 2011-10-07 2015-04-21 Caterpillar Inc. Adapter for a ground engaging machine implement
USD727979S1 (en) 2011-10-07 2015-04-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD728635S1 (en) 2013-08-01 2015-05-05 Caterpillar Inc. Coupler for a ground engaging machine implement
USD728637S1 (en) 2013-08-01 2015-05-05 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
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
USD748685S1 (en) 2013-08-01 2016-02-02 Caterpillar Inc. Coupler and tip for a ground engaging machine implement
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
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
USD774110S1 (en) 2015-08-12 2016-12-13 Caterpillar Inc. Tip for a ground engaging machine implement
USD774567S1 (en) 2015-08-12 2016-12-20 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
USD774566S1 (en) 2015-08-12 2016-12-20 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
USD775243S1 (en) 2015-08-12 2016-12-27 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
USD775241S1 (en) 2015-08-12 2016-12-27 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
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
USD803899S1 (en) * 2016-12-15 2017-11-28 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
USD803900S1 (en) * 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD803902S1 (en) * 2016-12-15 2017-11-28 Caterpillar Inc. Tip 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
USD805112S1 (en) * 2016-12-15 2017-12-12 Caterpillar Inc. Tip for a ground engaging machine implement
USD805562S1 (en) * 2016-12-15 2017-12-19 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806141S1 (en) * 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806142S1 (en) * 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806140S1 (en) * 2016-12-15 2017-12-26 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
USD806758S1 (en) * 2016-12-15 2018-01-02 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
USD832310S1 (en) 2017-08-30 2018-10-30 Caterpillar Inc. Adapter for a ground engaging machine implement
USD840441S1 (en) 2016-12-15 2019-02-12 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
USD894972S1 (en) * 2019-04-26 2020-09-01 Caterpillar Inc. Adapter for a ground engaging machine implement
USD894969S1 (en) * 2019-04-24 2020-09-01 Caterpillar Inc. Tip for a ground engaging machine implement
USD894968S1 (en) * 2019-04-24 2020-09-01 Caterpillar Inc. Adapter for a ground engaging machine implement
USD894971S1 (en) * 2019-04-26 2020-09-01 Caterpillar Inc. Tip for a ground engaging machine implement
USD894970S1 (en) * 2019-04-24 2020-09-01 Caterpillar Inc. Adapter for a ground engaging machine implement
USD897379S1 (en) * 2019-04-26 2020-09-29 Caterpillar Inc. Tip 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

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ES2222090B1 (es) * 2003-05-29 2007-07-01 Metalogenia Patentes, S.L. Diente, portadientes, y conjunto de diente y portadientes, para maquina de mover materiales tales como tierra y piedras.
CN104153420B (zh) * 2014-08-14 2017-02-15 广西柳工机械股份有限公司 装载机铲斗

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Cited By (123)

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Publication number Priority date Publication date Assignee Title
WO2005080695A1 (en) * 2004-02-10 2005-09-01 Italricambi Spa Tooth for an excavator bucket
US20070256335A1 (en) * 2004-02-10 2007-11-08 Italricambi Spa Tooth for an Excavator Bucket
AU2013202355B2 (en) * 2006-02-17 2014-10-02 Esco Group Llc Wear assembly
AU2013202355C1 (en) * 2006-02-17 2017-05-11 Esco Group Llc Wear assembly
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
US9816254B2 (en) 2006-03-30 2017-11-14 Esco Corporation Wear assembly for use on earth working equipment
US10829912B2 (en) 2006-03-30 2020-11-10 Esco Group Llc Wear assembly for use on earth working equipment
US9650764B2 (en) 2006-03-30 2017-05-16 Esco Corporation Wear assembly for use on earth working equipment
US20120260540A1 (en) * 2009-12-11 2012-10-18 Cqms Pty Ltd excavator wear assembly
US9469974B2 (en) * 2009-12-11 2016-10-18 Cqms Pty Ltd Excavator wear assembly
US9834909B2 (en) * 2009-12-11 2017-12-05 Cqms Pty Ltd Excavator wear assembly
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WO2002029167A1 (es) 2002-04-11
EP1411178A1 (en) 2004-04-21
AU2001291901A1 (en) 2002-04-15
ES2168988A1 (es) 2002-06-16
BR0114331A (pt) 2003-10-07
ES2168988B1 (es) 2003-12-01
CN1468340A (zh) 2004-01-14
JP2004510900A (ja) 2004-04-08
ZA200302463B (en) 2004-03-10
CA2424322A1 (en) 2003-03-28
KR20030036881A (ko) 2003-05-09
MXPA03002893A (es) 2003-06-24

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