US3894349A - Detachable tooth for public works machine having a particular cotter - Google Patents

Detachable tooth for public works machine having a particular cotter Download PDF

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Publication number
US3894349A
US3894349A US404126A US40412673A US3894349A US 3894349 A US3894349 A US 3894349A US 404126 A US404126 A US 404126A US 40412673 A US40412673 A US 40412673A US 3894349 A US3894349 A US 3894349A
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US
United States
Prior art keywords
cotter
auxiliary
main
head
tooth
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
US404126A
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English (en)
Inventor
Rene V Moreau
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.)
CASE POCLAIM
CASE POCLAIN 60330 LE PLESSIS-BELLEVILLE
Original Assignee
Poclain 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 Poclain SA filed Critical Poclain SA
Application granted granted Critical
Publication of US3894349A publication Critical patent/US3894349A/en
Assigned to CASE POCLAIM reassignment CASE POCLAIM CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE AS OF JANUARY 19, 1988 Assignors: POCLAIM
Assigned to CASE POCLAIN, 60330 LE PLESSIS-BELLEVILLE reassignment CASE POCLAIN, 60330 LE PLESSIS-BELLEVILLE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). NOVEMBER 30, 1987, FRANCE Assignors: POCLAIN
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
    • E02F9/2841—Retaining means, e.g. pins resilient

Definitions

  • ABSTRACT A detachable tooth such as for an excavating bucket. which tooth is coupled to a support by engagement of a head member and a socket member and is held in the engaged condition by a cotter extending through orifices in the head and socket members.
  • the cotter comprising a main cotter which receives an auxiliary cotter slidable relative to the main cotter in a direction parallel with the direction of engagement of the head and socket members.
  • the auxiliary cotter being biased away from the main cotter in that direction and including a lug to keep the cotter in position in the orifices.
  • the main cotter normally bears on one of the socket and heat members and the auxiliary cotter on the other of those members. but bears on both to protect the biasing means between the main cotter and auxiliary cotter in the event of the auxiliary cotter being driven toward the main cotter by relative closing movement of the tooth toward the support.
  • the object of the invention is to provide an improved detachable tooth with a cotter of novel type.
  • detachable tooth mounted on a support, such as the leading blade of an excavating bucket in particular, in which a first of the two said elements, tooth or support, has a cavity provided with an opening, and the second of these two elements being provided with a head, which is received in the said cavity and extends into the cavity from the said opening in a direction known as the introduction direction, orifices pass through each of the two elements and are in register with each other, an organ for holding the tooth in position on its support extends into the said orifices in a direction known as the cottering direction, perpendicular to the said introduction direction, the organ comprising a main cotter having a housing which receives an auxiliary cotter, an elastic compression organ inserted between the auxiliary cotter and the main cotter and at least one lug rigidly attached to the auxiliary cotter co-operating with the head to keep the said auxiliary cotter fast to the said head in the cottering direction, this auxiliary cotter being
  • the lug consists of two teeth which are directed towards the said face of the orifice in the second element including the head and are separated by a distance at least equal to that separating the two faces of the said head substantially perpendicular to the said face of the orifice in the second element including the head and substantially parallel to the introduction direction.
  • the two faces of the head substantially parallel to the introduction direction are preferably joined to the said face of the orifice in the second element including the head by flat surfaces inclined to the introduction direction and convergent towards the centre of the orifice in this second element.
  • the elastic organ it is sometimes advantageous for the elastic organ to consist of a block of rubber adhered to the auxiliary cotter.
  • FIG. 1 is a section of an embodiment of detachable tooth in accordance with the invention, in a plane which is parallel to the said introduction and cottering directions and is a median plane of the main and auxiliary cotters;
  • FIG. 2 is a section along the line llll of FIG. 1, of the complete tooth
  • FIG. 3 is a perspective view of the assembly of the organ for holding the tooth on its support.
  • FIG. 4 is an elevation of a modification of the auxiliary cotter of a tooth in accordance with the invention.
  • a leading blade 1 of a bucket is provided with cavities 2, into which are introduced shanks 3 of special supports 4 for fitting detachable teeth 5 to blade 1.
  • Supports 4 are fixed to blade 1 by means of rivets 6, in a manner well known in this field of technology.
  • Each tooth 5 has a penetration point 7 and a cavity 8 provided with an opening 9.
  • support 4 is provided with a coupling head 10, which is introduced into cavity 8 through opening 9, in a direction parallel to arrow F known as the introduction direction of this head 10 into cavity 8.
  • Orifices 11 are provided in detachable tooth 5 and register with an orifice 12 which passes through head 10.
  • An organ 13 for holding tooth 5 in position on head head 10 is introduced into orifices II and 12 in a direction known as the cottering direction indicated by arrow G. Moreover, this cottering direction G is perpendicular to introduction direction F.
  • Holding organ 13 consists of a main cotter 14, an auxiliary cotter l5 and an elastic organ inserted between the main cotter l4 and auxiliary cotter 15, consisting in this case of a block 16 of rubber.
  • main cotter 14 has a housing 17 into which block 16 and a portion of auxiliary cotter 15 are introduced.
  • Housing 17 forms a blind cavity, the opening 18 of which is defined by two sides 19 and by two ends 20 connecting sides 19.
  • the free edges of sides 19 form the forward face of main cotter 14, the face opposite to the free edges of the said sides 19 forming the rear face 21 of the said cotter 14.
  • sides 19 are arranged opposite a face 22 of the orifice 12 of the head 10, while rear face 21 of main cotter 14 is arranged opposite faces 23 of the orifices 11 in the tooth, this face 23, moreover, being opposed to face 22 of orifice 12. Moreover, the free edges of sides 19 can bear against face 22 of orifice 12, when rear face 21 of main cotter 14 is itself bearing on faces 23 of the orifices 11 in tooth 5. It will also be noted that the distance D, separating faces 19 and 22 is distinctly shorter than the distance D which separates the faces 14a and 15a of the two cotters which are in contact with rubber block 16, with only the elasticity of the rubber acting. As a result, when distance D, becomes zero when faces 19 and 22 come into mutual contact, distance D is only reduced by D, but is not zero, and this enables the crushing of block 16 to be avoided.
  • auxiliary cotter 15 has two small teeth 24, which are directed towards face 22 of the orifice 12 of the socket and which are separated by a distance E, slightly greater than the distance E separating two flat surfaces 25 of head 10. These flat surfaces 25 form the extension of two faces 26 of head which are approximately parallel to introduction direction F, and join the said faces 26 to face 22 of the orifice 12 of the head. Flat surfaces 25 are slightly inclined to introduction direction F and converge towards the centre of orifice l2.
  • main cotter 14 is formed as an element rendered very strong by the presence of sides 19 and ends 20.
  • the corresponding particular structure is substantially nondeformable, at least when it is subjected only to those strains which are likely to be applied to it in use.
  • flat surfaces 25 facilitate introduction of the assembly of the two cotters l4 and 15 and of the block of rubber 16 into orifices 11 and 12.
  • the elastic organ which has been selected in the illustrated example consists of a block of rubber
  • An improved detachable tooth mounted on a support such as the leading blade of an excavating bucket in which a first of the two elements, either the tooth or the support, has a cavity with an opening, the second of the two elements has a head insertable into the cavity from the opening in an introduction direction, orifices extend through each of the two elements in register with each other, a main cotter extends into said orifices in a cottering direction perpendicular to the introduction direction, for retaining the tooth on the support and for retaining an auxiliary cotter with at least one lug cooperating with the head to prevent movement in the cottering direction of the auxiliary cotter relative to the head and which receives an elastic compression member inserted between the auxiliary cotter and the main cotter wherein the auxiliary cotter is mounted slidably in the introduction direction relative to the main cotter, said improvement comprising side walls, end walls and a bottom wall on the main cotter adjacent the auxiliary cotter to form a blind cavity wherein

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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)
US404126A 1972-10-31 1973-10-05 Detachable tooth for public works machine having a particular cotter Expired - Lifetime US3894349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238539A FR2204741B1 (fr) 1972-10-31 1972-10-31

Publications (1)

Publication Number Publication Date
US3894349A true US3894349A (en) 1975-07-15

Family

ID=9106455

Family Applications (1)

Application Number Title Priority Date Filing Date
US404126A Expired - Lifetime US3894349A (en) 1972-10-31 1973-10-05 Detachable tooth for public works machine having a particular cotter

Country Status (10)

Country Link
US (1) US3894349A (fr)
JP (1) JPS4982103A (fr)
AR (1) AR198698A1 (fr)
BE (1) BE805641A (fr)
BR (2) BR6308410D0 (fr)
DE (1) DE2353848A1 (fr)
ES (1) ES419646A1 (fr)
FR (1) FR2204741B1 (fr)
GB (1) GB1411464A (fr)
IT (1) IT999706B (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155665A (en) * 1976-03-29 1979-05-22 Caterpillar Tractor Co. Resilient retention key for replaceable ripper teeth
US4192089A (en) * 1977-03-25 1980-03-11 O & K Orenstein & Koppel Aktiengesellschaft Retainer for releasably securing a tooth tip of a digger tooth
US4357765A (en) * 1980-03-24 1982-11-09 United States Steel Corporation Apparatus for securing overlapping portions of two digger tooth members together
US4602445A (en) * 1983-10-04 1986-07-29 Ab Bofors Wear Parts Locking device
US4663867A (en) * 1985-10-02 1987-05-12 Esco Corporation Locking device for whisler type adapter
US4881331A (en) * 1985-04-03 1989-11-21 Gamma Lock (Proprietary) Limited Teeth for use with earth moving equipment
US5152088A (en) * 1990-09-10 1992-10-06 Esco Corporation Excavating tooth point and method of replacement
US5394629A (en) * 1993-06-21 1995-03-07 Gh Hensley Industries, Inc. Side-locking flex pin connector for excavation apparatus
US5469648A (en) * 1993-02-02 1995-11-28 Esco Corporation Excavating tooth
US5806215A (en) * 1992-04-07 1998-09-15 Carol Thelma Matthews Excavator tooth retaining assembly
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system
US6030143A (en) * 1997-12-18 2000-02-29 Esco Corporation Locking pin for excavating equipment
US20050286988A1 (en) * 2001-08-20 2005-12-29 David Harris Fastener assembly
US20060143953A1 (en) * 2002-12-23 2006-07-06 Magnus Karlsson Wearing parts system for detachable fitting of wearing parts for the tool of a cultivating machine
US20150033598A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground Engaging Tool Assembly
US20150033601A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc Ground Engaging Tool Assembly
CN104364450A (zh) * 2011-10-08 2015-02-18 卡特彼勒公司 具有尖端和接头的地面接合工具齿组件
US20180142447A1 (en) * 2016-11-18 2018-05-24 Harnischfeger Technologies, Inc. Modular ground engagement tooling system
WO2021010653A1 (fr) * 2019-07-17 2021-01-21 성보공업주식회사 Structure d'amortisseur
KR102306607B1 (ko) * 2020-09-10 2021-09-30 성보공업주식회사 댐퍼 구조물 및 이를 이용한 결합 구조물

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639989C2 (de) * 1976-09-04 1982-04-29 O & K Orenstein & Koppel Ag, 1000 Berlin Lösbare Befestigung eines rückwärts mit einer Hülse versehenen Baggerzahns an einem in die Hülse eingreifenden Zahnhalter
US4271615A (en) * 1980-01-24 1981-06-09 Esco Corporation Locking device for excavating equipment
JPS5992772U (ja) * 1982-12-14 1984-06-23 藤森　高根 バケツト式土工機械のバケツトにおけるエツジの保護構造
IT1252500B (it) * 1991-09-13 1995-06-19 Metallurg Valchiese Srl Dente composito per macchine movimento terra
FR2708973B1 (fr) * 1993-03-29 1995-10-27 Pasqualini Charles Dispositif et procédé de liaison entre des dents amovibles et des adapteurs formés aux extrémités d'outils et réceptacles en usage sur les engins de travaux publics.
JP2545354Y2 (ja) * 1993-09-16 1997-08-25 三菱製鋼株式会社 掘削刃の保持構造
ES2146541B1 (es) * 1998-06-08 2001-04-01 Metalogenia Sa Dispositivo para el acoplamiento de dientes de excavadoras.
ES2146174B1 (es) 1998-07-03 2002-01-16 Metalogenia Sa Acoplamiento para dientes de excavadoras y similares.
ES2158805B1 (es) 1999-10-01 2002-04-01 Metalogenia Sa Perfeccionamientos en los acoplamientos para dientes de maquinas para movimiento de tierras.
ATE452248T1 (de) * 2001-07-06 2010-01-15 Esco Corp Kupplung für ein bagger-verschleissteil
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9518379B2 (en) * 2014-02-28 2016-12-13 Caterpillar Inc. Shroud retention system having replaceable lug insert

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259456A (en) * 1940-05-25 1941-10-21 Arthur N Crawford Bucket tooth unit
US2772492A (en) * 1953-02-12 1956-12-04 American Brake Shoe Co Retainer pins for dipper teeth
US2837844A (en) * 1955-06-23 1958-06-10 Tooth H & L Co Rooter attachment for bulldozers or the like
US2870667A (en) * 1954-07-08 1959-01-27 American Brake Shoe Co Retaining key for dipper tooth parts having resilient pad
US2949687A (en) * 1957-07-15 1960-08-23 Electric Steel Foundry Co Excavating tooth
US2987332A (en) * 1958-11-17 1961-06-06 Bonmartini Glovanni Resilient torque-transmitting hinge structure
US3196956A (en) * 1962-12-21 1965-07-27 American Brake Shoe Co Digger tooth
US3511126A (en) * 1967-12-06 1970-05-12 Caterpillar Tractor Co Cylindrical retaining pin of substantially rigid construction
US3520224A (en) * 1969-02-12 1970-07-14 Hensley Equipment Co Inc Retaining pin
US3675350A (en) * 1970-04-13 1972-07-11 Amsted Ind Inc Dipper tooth assembly
US3685178A (en) * 1970-07-10 1972-08-22 Abex Corp Dipper teeth

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982035A (en) * 1958-04-28 1961-05-02 Thomas C Whisler Excavator tooth
US3019537A (en) * 1959-01-06 1962-02-06 American Brake Shoe Co Keeper for an excavator tooth
DE1918491A1 (de) * 1969-04-11 1970-12-10 Karl Schwarzkopf Stift,insbesondere Verriegelungsstift fuer Baggerzaehne

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259456A (en) * 1940-05-25 1941-10-21 Arthur N Crawford Bucket tooth unit
US2772492A (en) * 1953-02-12 1956-12-04 American Brake Shoe Co Retainer pins for dipper teeth
US2870667A (en) * 1954-07-08 1959-01-27 American Brake Shoe Co Retaining key for dipper tooth parts having resilient pad
US2837844A (en) * 1955-06-23 1958-06-10 Tooth H & L Co Rooter attachment for bulldozers or the like
US2949687A (en) * 1957-07-15 1960-08-23 Electric Steel Foundry Co Excavating tooth
US2987332A (en) * 1958-11-17 1961-06-06 Bonmartini Glovanni Resilient torque-transmitting hinge structure
US3196956A (en) * 1962-12-21 1965-07-27 American Brake Shoe Co Digger tooth
US3511126A (en) * 1967-12-06 1970-05-12 Caterpillar Tractor Co Cylindrical retaining pin of substantially rigid construction
US3520224A (en) * 1969-02-12 1970-07-14 Hensley Equipment Co Inc Retaining pin
US3675350A (en) * 1970-04-13 1972-07-11 Amsted Ind Inc Dipper tooth assembly
US3685178A (en) * 1970-07-10 1972-08-22 Abex Corp Dipper teeth

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155665A (en) * 1976-03-29 1979-05-22 Caterpillar Tractor Co. Resilient retention key for replaceable ripper teeth
US4192089A (en) * 1977-03-25 1980-03-11 O & K Orenstein & Koppel Aktiengesellschaft Retainer for releasably securing a tooth tip of a digger tooth
US4357765A (en) * 1980-03-24 1982-11-09 United States Steel Corporation Apparatus for securing overlapping portions of two digger tooth members together
US4602445A (en) * 1983-10-04 1986-07-29 Ab Bofors Wear Parts Locking device
US4881331A (en) * 1985-04-03 1989-11-21 Gamma Lock (Proprietary) Limited Teeth for use with earth moving equipment
EP0264480A1 (fr) * 1985-10-02 1988-04-27 Esco Corporation Dispositif de blocage pour un support de dent
US4663867A (en) * 1985-10-02 1987-05-12 Esco Corporation Locking device for whisler type adapter
US5152088A (en) * 1990-09-10 1992-10-06 Esco Corporation Excavating tooth point and method of replacement
US5806215A (en) * 1992-04-07 1998-09-15 Carol Thelma Matthews Excavator tooth retaining assembly
US5469648A (en) * 1993-02-02 1995-11-28 Esco Corporation Excavating tooth
US5394629A (en) * 1993-06-21 1995-03-07 Gh Hensley Industries, Inc. Side-locking flex pin connector for excavation apparatus
US6030143A (en) * 1997-12-18 2000-02-29 Esco Corporation Locking pin for excavating equipment
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system
US7497653B2 (en) * 2001-08-20 2009-03-03 Maclean-Fogg Company Locking fastener assembly
US20050286988A1 (en) * 2001-08-20 2005-12-29 David Harris Fastener assembly
US20060143953A1 (en) * 2002-12-23 2006-07-06 Magnus Karlsson Wearing parts system for detachable fitting of wearing parts for the tool of a cultivating machine
US7703224B2 (en) * 2002-12-23 2010-04-27 Combi Wear Parts Ab Wearing parts system for detachable fitting of wearing parts for the tool of a cultivating machine
CN104364450A (zh) * 2011-10-08 2015-02-18 卡特彼勒公司 具有尖端和接头的地面接合工具齿组件
US9441350B2 (en) 2013-08-01 2016-09-13 Caterpillar Inc. Ground engaging tool assembly
US20150033601A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc Ground Engaging Tool Assembly
US9228324B2 (en) * 2013-08-01 2016-01-05 Caterpillar Inc. Ground engaging tool assembly
US9290914B2 (en) * 2013-08-01 2016-03-22 Caterpillar Inc. Ground engaging tool assembly
US20150033598A1 (en) * 2013-08-01 2015-02-05 Caterpillar Inc. Ground Engaging Tool Assembly
US20180142447A1 (en) * 2016-11-18 2018-05-24 Harnischfeger Technologies, Inc. Modular ground engagement tooling system
US11396739B2 (en) * 2016-11-18 2022-07-26 Joy Global Surface Mining Inc Modular ground engagement tooling system
WO2021010653A1 (fr) * 2019-07-17 2021-01-21 성보공업주식회사 Structure d'amortisseur
KR20210009737A (ko) * 2019-07-17 2021-01-27 성보공업주식회사 댐퍼 구조물
US11697924B2 (en) 2019-07-17 2023-07-11 Sungbo Industrial Co., Ltd. Damper structure
KR102306607B1 (ko) * 2020-09-10 2021-09-30 성보공업주식회사 댐퍼 구조물 및 이를 이용한 결합 구조물
US12084843B2 (en) 2020-09-10 2024-09-10 Sungbo Industrial Co., Ltd. Retaining mechanism for teeth

Also Published As

Publication number Publication date
BR6308410D0 (pt) 1974-09-05
JPS4982103A (fr) 1974-08-07
IT999706B (it) 1976-03-10
FR2204741B1 (fr) 1975-01-03
BE805641A (fr) 1974-02-01
BR7308410D0 (pt) 1974-09-05
GB1411464A (en) 1975-10-22
DE2353848A1 (de) 1974-05-09
ES419646A1 (es) 1976-03-16
FR2204741A1 (fr) 1974-05-24
AR198698A1 (es) 1974-07-15

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Owner name: CASE POCLAIM

Free format text: CHANGE OF NAME;ASSIGNOR:POCLAIM;REEL/FRAME:005048/0294

Effective date: 19871130

AS Assignment

Owner name: CASE POCLAIN, 60330 LE PLESSIS-BELLEVILLE

Free format text: CHANGE OF NAME;ASSIGNOR:POCLAIN;REEL/FRAME:005120/0461

Effective date: 19890622