US20050066555A1 - Insert for locking mechanism for ground engaging tools - Google Patents

Insert for locking mechanism for ground engaging tools Download PDF

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Publication number
US20050066555A1
US20050066555A1 US10/760,378 US76037804A US2005066555A1 US 20050066555 A1 US20050066555 A1 US 20050066555A1 US 76037804 A US76037804 A US 76037804A US 2005066555 A1 US2005066555 A1 US 2005066555A1
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US
United States
Prior art keywords
insert
passage
work piece
support structure
faceplate
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
US10/760,378
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English (en)
Inventor
Dwight Adamic
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.)
QSF Acquisitions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to QUALITY STEEL FOUNDRIES LTD. reassignment QUALITY STEEL FOUNDRIES LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ADAMIC, DWIGHT L.
Publication of US20050066555A1 publication Critical patent/US20050066555A1/en
Assigned to QSF ACQUISITIONS INC. reassignment QSF ACQUISITIONS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: QUALITY STEEL FOUNDRIES LTD.
Priority to US11/471,246 priority Critical patent/US20060236567A1/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
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins

Definitions

  • This invention relates to the field of locking and coupling mechanisms for retaining wear members on support structures and, preferably, for use with ground-engaging tools.
  • Buckets on digging machines are generally equipped with replaceable ground-engaging teeth. These teeth attach to adapters or adapter bases, which indirectly attach the teeth to the bucket lip.
  • the teeth, as well as the adapters wear over time and therefore need to be replaced frequently during operation.
  • lock mechanisms that couple these together and/or to the base must be easy to use to minimize downtime of the equipment.
  • Adapter locking mechanisms are often the older type commonly called wedge-and-spool. These locks are comprised of two pieces that are hammered into an opening in the wear member and the support structure on which the wear member is placed. Once hammered into place, they are often spot-welded to ensure they do not come loose during use of the tool. As a result, wedge-and-spool locks are difficult to remove and sometimes shatter during installation or removal, endangering the safety of nearby workers.
  • One aspect of the present invention is directed to an insert for use, in combination with a locking assembly, for attaching a work piece to a support structure.
  • the work piece and support structure respectively have a first and second passage which are in communication when the work piece is operatively coupled to the support structure.
  • the insert comprises an elongated body for insertion into the second passage in the support structure.
  • the body has two opposing ends and a longitudinal axis. It also preferably has attachment means at at least one of the opposing ends for engaging the work piece or the lock assembly when the work piece is operatively coupled to the support structure.
  • the insert has attachment means at one end that comprises a faceplate generally perpendicular to the longitudinal axis of the body.
  • the faceplate When the insert is inserted in the second passage, the faceplate is positioned between the work piece and the support structure when they are operatively coupled.
  • the faceplate preferably engages corresponding slots or other attachments means on the inner surface of the work piece.
  • the faceplate preferably has a recess in its outer surface for receiving one end of a lock pin or other locking assembly inserted into the first passage for locking the work piece to the support structure.
  • the work piece will have a first passage extending through its upper surface as well as a third passage extending forward from its rear end in a generally longitudinal direction, wherein the passage of the support structure and those of the work piece are in communication.
  • the faceplate of the insert When the insert is positioned in the second passage in the support structure, the faceplate of the insert will extend from the second passage to engage attachment means, such as a slot, in the third passage in the work piece.
  • a locking assembly would engage the rearward end of the faceplate, by having a lock pin extend through the first passage and abut against the rearward end of the faceplate, for maintaining the work piece on the support structure.
  • a pin carrier may be inserted into the third passage to abut against the rearward end of the faceplate, and the lock pin would extend through the first passage to engage the pin carrier for maintaining the work piece on the support structure.
  • the insert extends only partially through the second passage or alternatively, is comprised of two inserted pieces of which one or both may be used.
  • two inserts When two inserts are used, they may interconnect at their inner ends. This is preferred since the inserts are thereby retained in the second passageway until the work piece is placed on the support structure.
  • FIG. 1 is a top-side elevated view of one embodiment of the insert of the present invention for use with an adapter base;
  • FIG. 3 is front view of the insert shown in FIG. 1 ;
  • FIG. 4 is a cross-sectional view of the insert taken along line 4 - 4 in FIG. 3 .
  • FIG. 6 is a front view of a second embodiment of the insert of the present invention.
  • FIG. 7 is a top view of the insert shown in FIG. 6 ;
  • FIG. 8 is a bottom view of the insert shown in FIG. 6 ;
  • FIG. 10 is a cross-sectional view taken along line C-C in FIG. 7 ;
  • FIG. 11 is a cross-sectional view of an adapter positioned on an adapter base and having an insert of FIG. 6 positioned therein, where the adapter is locked to the adapter base with a lock pin and lock retainer;
  • FIG. 12 is a front cross-sectional view taken along line C-C of FIG. 11 ;
  • FIG. 13A is a perspective schematic view of the insert of FIG. 1 illustrating the faceplate on the upper surface of the adapter base;
  • FIG. 13B is a perspective schematic view of the insert of FIG. 1 illustrating the bottom end of the insert extending from the passage of the adapter base;
  • FIG. 14 is a bottom elevational view of a ground-engaging tooth and lock retainer
  • FIG. 15 is a front perspective view of an adapter and passage opening
  • FIG. 18 is a further embodiment of the insert of the present invention.
  • FIG. 19 is a side, perspective view of the inserts shown in FIGS. 17 and 18 coupled together in a passage in an adapter base.
  • the present invention provides for an insert that can be used in a passageway extending through a support structure to provide for a means to lock a wear member to the support structure using a modern locking system. It is used with locking systems that lock the wear member to the support structure but which do not require special attachments in the support structure passageway.
  • the insert is preferably used with older designed support structures having a passage extending through the support structure to generally align with at least one passage in matching old-style wear members.
  • FIGS. 1 to 13 and 17 to 19 Embodiments of the insert of the present invention are described and shown in FIGS. 1 to 13 and 17 to 19 with reference to the locking of an adapter to an adapter base.
  • FIGS. 14 to 16 show the locking of a tooth to an adapter.
  • the present invention is not limited to such embodiments as will be described in more detail.
  • “Wear members” is meant to refer to both adapters as well as ground-engaging teeth.
  • Support structures may include adapters, adapter bases, or bucket lips. These terms may also be interpreted in accordance with broader definitions, and industries other than ground-engaging tools, that requiring the locking and removal of work pieces to and from a support structure.
  • the present insert may be used with a support structure having a passageway which extends through the support structure in a vertical or horizontal direction, i.e. extending from top to bottom or from side to side of the support structure.
  • the insert will be tipped at each end with some attachment points that engage corresponding shaped slots on the inside wall of the wear member at one or both of its ends. Alternatively, it will not engage any slots on the wear member but will be held in place simply by the positioning of the wear member over the support structure.
  • the insert of one embodiment of the present invention is shown in more detail in FIGS. 1-5 and 13 .
  • It is generally designated as 1 and has an elongated body 3 extending along the longitudinal axis L.
  • the shape and length of the main body 3 will correspond to the shape and length of the passageway in the adapter base.
  • a generally flat faceplate 5 that has an outer surface generally perpendicular to the longitudinal axis L of the insert.
  • the faceplate has an increased thickness 6 on its forward face.
  • the lower surface of the flat face may be at an angle, rather than generally perpendicular, to the longitudinal axis L of the main body.
  • the faceplate 5 preferably has a larger area than the opening of the passage in the adapter base.
  • the faceplate will prevent the insert from passing through the passageway. This is shown in FIGS. 12 and 13 A.
  • the angle of the faceplate to the main body will vary according to the angle of the adapter base surface and the base passage.
  • the outer surface of the faceplate has a recess 9 that generally aligns with a lock pin opening Q (shown for one embodiment in FIG. 16 ) in the adapter when the adapter is placed over the adapter base.
  • the faceplate is positioned on the outer surface of the adapter base as shown in FIG. 13A and may engage attachment means on the inner surface of the adapter. In one example, two of the faceplate opposing edges engage corresponding slots on the inner surface of the adapter. Alternatively, when the adapter is positioned over the adapter base, the faceplate is positioned between the inner surface of the adapter and the adapter base. In this position, the adapter base insert cannot be removed from the passage.
  • FIGS. 17-19 A further embodiment is shown in FIGS. 17-19 .
  • the elongated body does not extend all the way through the passage in the adapter base but instead only extends through a portion of it.
  • the insert consists of two elongated bodies. Each body has a faceplate at one end for engaging slots or other attachment means on the work piece. The faceplate is generally perpendicular to the longitudinal axis of the body and is preferable larger than the passage in the adapter base.
  • the opposing ends of the elongated bodies interconnect through mating attachments.
  • FIG. 19 One example is shown in FIG. 19 although others may be used. Alternatively, the bodies may simply extend part of the way through the passage and not interconnect to each other or only one of these inserts may be used.
  • FIGS. 11 and 12 show the adapter base insert assembled with an adapter T, adapter base A, and locking assembly.
  • the locking assembly is described in more detail in Canadian Application No. 2,312,550.
  • the adapter base insert is positioned in the passage in the adapter base.
  • a lock retainer I is placed in a recess R in the inner surface of the adapter and the adapter is placed over the end of the adapter base in an operative manner.
  • the faceplate 25 of the insert engages a corresponding slot on the inner surface of the adapter and the faceplate's lower surface contacts the outer surface of the adapter base.
  • the bottom end 31 of the insert extends through the passage and engages corresponding slots on the inner surface of the adapter.
  • the recess 29 in the faceplate of the adapter base insert aligns with the lock pin opening in the adapter.
  • a lock pin P is inserted into the opening and tightened into the lock retainer.
  • the end of the lock pin will extend into the recess 29 of the adapter base insert but the adapter base insert will not prevent the pin from being fully tightened into the lock retainer.
  • a cross-section of this assembly is shown in FIG. 12 .
  • the end of the lock pin would contact the adapter base insert.
  • the adapter base insert would therefore bear some of the wear member-removal forces from the pin and transfer them to the support structure.
  • the adapter base insert may contact the locking pin, lock retainer, or other parts of the locking assembly during use of the wear member and bear forces from them.
  • the insert may be used with an adapter having a first passage extending through its upper leg and a second passage extending from its rear end along its longitudinal axis.
  • the adapter base will have a passage extending through it that communicates with the passages of the adapter.
  • the faceplate of the insert will preferably have a flat surface at its rearward-facing end. When the insert is positioned in the passage in the adapter base, the faceplate of the insert will extend above the surface of the adapter base. As the adapter is positioned on the nose of the adapter base, the faceplate will engage a slot on the inner surface of the longitudinally-extending passage of the adapter.
  • the opening of the upper passage in the adapter When the adapter is operatively positioned on the adapter base, the opening of the upper passage in the adapter will be positioned near the back edge of the faceplate so that a lock mechanism, such as a pin, inserted into this opening will be positioned between the back edge of the faceplate and the rear edge of the opening of the upper passage for locking the adapter to the adapter base.
  • a pin carrier may be inserted into the slot on the inner surface of the longitudinally-extending passage of the adapter to be in abutment against the back edge of the faceplate. The pin, upon being inserted into the opening in the adapter upper passage, would be received in the pin carrier for locking the adapter to the adapter base.
  • FIGS. 14 to 16 show a ground-engaging tooth and adapter assembly with the same lock assembly as is shown in FIGS. 11 and 12 .
  • the insert may be positioned in passage O in the adapter S.
  • the pin retainer I is placed in recess R in the ground-engaging tooth W that is then positioned on the working end of the adapter S as shown in FIG. 16 .
  • the pin is then inserted into the passage Q in the tooth W.

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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)
US10/760,378 2003-09-26 2004-01-21 Insert for locking mechanism for ground engaging tools Abandoned US20050066555A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/471,246 US20060236567A1 (en) 2003-09-26 2006-06-20 Insert for locking mechanism for ground engaging tools

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,443,168 2003-09-26
CA002443168A CA2443168A1 (fr) 2003-09-26 2003-09-26 Piece pour mecanisme de verrouillage d'outils dans le sol

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/471,246 Division US20060236567A1 (en) 2003-09-26 2006-06-20 Insert for locking mechanism for ground engaging tools

Publications (1)

Publication Number Publication Date
US20050066555A1 true US20050066555A1 (en) 2005-03-31

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US10/760,378 Abandoned US20050066555A1 (en) 2003-09-26 2004-01-21 Insert for locking mechanism for ground engaging tools
US11/471,246 Abandoned US20060236567A1 (en) 2003-09-26 2006-06-20 Insert for locking mechanism for ground engaging tools

Family Applications After (1)

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US11/471,246 Abandoned US20060236567A1 (en) 2003-09-26 2006-06-20 Insert for locking mechanism for ground engaging tools

Country Status (4)

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US (2) US20050066555A1 (fr)
AU (1) AU2004201389B1 (fr)
CA (2) CA2549274A1 (fr)
ZA (1) ZA200402628B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060059732A1 (en) * 2004-09-17 2006-03-23 Charles Clendenning Pin assembly for a two-part ground engaging tooth system and method for connecting components of a two-part ground engaging tooth system to each other
US20060127239A1 (en) * 2000-06-27 2006-06-15 Adamic Dwight L Torque locking system for fastening a wear member to a support structure
US20090199442A1 (en) * 2008-02-08 2009-08-13 Jenna Management, Ltd. Excavation retention assembly
US8495826B2 (en) 2010-03-31 2013-07-30 Komatsu Ltd. Work implement and retaining pin assembly
EP2494114A4 (fr) * 2009-10-29 2017-11-22 Black Cat Blades Ltd. Fixation de dent d'excavation rétro-ajustée
CN108307643A (zh) * 2015-11-25 2018-07-20 卡特彼勒公司 用于地面接合工具的锁组件
US10669698B2 (en) * 2015-02-13 2020-06-02 Esco Group Llc Monitoring ground-engaging products for earth working equipment

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI387675B (zh) 2005-12-21 2013-03-01 Esco Corp 磨耗元件、磨耗總成及用於鎖的短管
WO2011016858A1 (fr) * 2009-08-05 2011-02-10 H&L Tooth Company Ensemble de dent et procédé associé pour coupler de façon libérable une dent à un adaptateur
US9359744B2 (en) 2009-08-05 2016-06-07 H&L Tooth Company Multipiece wear assembly
USD634605S1 (en) * 2010-05-24 2011-03-22 Cqms Pty Ltd Locking pin assembly for an excavator wear member
USRE45710E1 (en) * 2009-12-11 2015-10-06 CQMS Pty Limited Locking pin assembly for an excavator wear member
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
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
USD743446S1 (en) * 2012-06-15 2015-11-17 Belltec Industries, Inc. Coupler
KR101718774B1 (ko) * 2012-12-18 2017-03-22 가부시키가이샤 고마쓰 세이사쿠쇼 굴삭 투스 장착체 및 굴삭 투스
USD812108S1 (en) 2016-03-02 2018-03-06 Belltec Industries, Inc. Hex coupler
US11603647B2 (en) * 2020-01-06 2023-03-14 Pengo Corporation Excavating tooth assembly for earth-digging equipment

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US1808311A (en) * 1929-09-11 1931-06-02 Sabby Madonna Excavator
US2860861A (en) * 1957-01-24 1958-11-18 Caterpillar Tractor Co Ripper tooth construction having stop member to prevent wedging of tooth to shank
US5009017A (en) * 1987-01-20 1991-04-23 Caterpillar Inc. Retaining pin having a positive keeper means
US5337495A (en) * 1993-04-30 1994-08-16 Pippins Sherlock K Tooth assembly for excavating apparatus
US5617655A (en) * 1995-03-22 1997-04-08 H&L Tooth Company Securement pin for earth excavation teeth
US5724756A (en) * 1997-01-06 1998-03-10 Caterpillar Inc. Bucket tip retention means
US6092958A (en) * 1997-12-03 2000-07-25 Caterpillar Inc. Pin retainer for ground engaging tools
US6374521B1 (en) * 1999-04-05 2002-04-23 Trn Business Trust Apparatus and method for coupling an excavation tooth assembly
US20030101627A1 (en) * 2001-12-03 2003-06-05 Robinson Howard W. Excavating tooth assembly with rotatable connector pin structure
US6799387B2 (en) * 2002-01-29 2004-10-05 Trn Business Trust Removable adapter assembly having a retractable insert

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SU874913A1 (ru) * 1980-02-14 1981-10-23 Предприятие П/Я В-2823 Устройство дл креплени зуба землеройной машины
US5987787A (en) * 1998-02-11 1999-11-23 Wright Equipment Company (Proprietary) Limited Ground engaging tool components
US6757995B2 (en) * 2002-07-12 2004-07-06 Trn Business Trust System and method for coupling excavation equipment components
US7036249B2 (en) * 2003-05-22 2006-05-02 Trn Business Trust Tooth adapter having an elastomeric clamp assembly and method for using same

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1808311A (en) * 1929-09-11 1931-06-02 Sabby Madonna Excavator
US2860861A (en) * 1957-01-24 1958-11-18 Caterpillar Tractor Co Ripper tooth construction having stop member to prevent wedging of tooth to shank
US5009017A (en) * 1987-01-20 1991-04-23 Caterpillar Inc. Retaining pin having a positive keeper means
US5337495A (en) * 1993-04-30 1994-08-16 Pippins Sherlock K Tooth assembly for excavating apparatus
US5617655A (en) * 1995-03-22 1997-04-08 H&L Tooth Company Securement pin for earth excavation teeth
US5724756A (en) * 1997-01-06 1998-03-10 Caterpillar Inc. Bucket tip retention means
US6092958A (en) * 1997-12-03 2000-07-25 Caterpillar Inc. Pin retainer for ground engaging tools
US6374521B1 (en) * 1999-04-05 2002-04-23 Trn Business Trust Apparatus and method for coupling an excavation tooth assembly
US6502336B2 (en) * 1999-04-05 2003-01-07 Trn Business Trust Apparatus and method for coupling an excavation tooth assembly
US20030101627A1 (en) * 2001-12-03 2003-06-05 Robinson Howard W. Excavating tooth assembly with rotatable connector pin structure
US6799387B2 (en) * 2002-01-29 2004-10-05 Trn Business Trust Removable adapter assembly having a retractable insert

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060127239A1 (en) * 2000-06-27 2006-06-15 Adamic Dwight L Torque locking system for fastening a wear member to a support structure
US7640684B2 (en) * 2000-06-27 2010-01-05 Esco Corporation Torque locking system for fastening a wear member to a support structure
US20060059732A1 (en) * 2004-09-17 2006-03-23 Charles Clendenning Pin assembly for a two-part ground engaging tooth system and method for connecting components of a two-part ground engaging tooth system to each other
US7313877B2 (en) 2004-09-17 2008-01-01 H&L Tooth Company Pin assembly for a two-part ground engaging tooth system and method for connecting components of a two-part ground engaging tooth system to each other
US20090199442A1 (en) * 2008-02-08 2009-08-13 Jenna Management, Ltd. Excavation retention assembly
US7788830B2 (en) * 2008-02-08 2010-09-07 Cqms Razer (Usa) Llc Excavation retention assembly
EP2494114A4 (fr) * 2009-10-29 2017-11-22 Black Cat Blades Ltd. Fixation de dent d'excavation rétro-ajustée
US8495826B2 (en) 2010-03-31 2013-07-30 Komatsu Ltd. Work implement and retaining pin assembly
US10669698B2 (en) * 2015-02-13 2020-06-02 Esco Group Llc Monitoring ground-engaging products for earth working equipment
US11851848B2 (en) 2015-02-13 2023-12-26 Esco Group Llc Monitoring ground-engaging products for earth working equipment
CN108307643A (zh) * 2015-11-25 2018-07-20 卡特彼勒公司 用于地面接合工具的锁组件

Also Published As

Publication number Publication date
ZA200402628B (en) 2004-12-02
CA2443168A1 (fr) 2004-10-26
US20060236567A1 (en) 2006-10-26
AU2004201389B1 (en) 2005-03-24
CA2549274A1 (fr) 2004-10-26

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AS Assignment

Owner name: QUALITY STEEL FOUNDRIES LTD., CANADA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ADAMIC, DWIGHT L.;REEL/FRAME:014783/0519

Effective date: 20040525

AS Assignment

Owner name: QSF ACQUISITIONS INC., CANADA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:QUALITY STEEL FOUNDRIES LTD.;REEL/FRAME:016744/0942

Effective date: 20050524

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION