GB2264133A - Retaining mechanism for a tooth assembly - Google Patents

Retaining mechanism for a tooth assembly

Info

Publication number
GB2264133A
GB2264133A GB9304922A GB9304922A GB2264133A GB 2264133 A GB2264133 A GB 2264133A GB 9304922 A GB9304922 A GB 9304922A GB 9304922 A GB9304922 A GB 9304922A GB 2264133 A GB2264133 A GB 2264133A
Authority
GB
United Kingdom
Prior art keywords
pin
retaining mechanism
opening
shoulder means
spring washers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9304922A
Other versions
GB9304922D0 (en
GB2264133B (en
Inventor
James A Garman
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.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
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 Caterpillar Inc filed Critical Caterpillar Inc
Publication of GB9304922D0 publication Critical patent/GB9304922D0/en
Publication of GB2264133A publication Critical patent/GB2264133A/en
Application granted granted Critical
Publication of GB2264133B publication Critical patent/GB2264133B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)

Abstract

Retaining mechanisms are normally utilized for securing a tooth to an adapter. Many times the forces necessary to secure the retaining mechanism in an assembled position is not high enough to maintain assembly during use. In the subject arrangement, the retaining mechanism (16) includes a pin (40) having a means (60) thereon for forming a shoulder and a plurality of conical spring washers (42, 44, 46) each having an inner surface (52) defining an opening (53) having a diameter of a predetermined size which is smaller than the outer diameter of the shoulder means (60). During assembly, the shoulder means (60) of the pin (40) is forced through the opening (53) of the respective conical spring washers (42, 44, 46) from a concave side (48) thereof. In order to disassemble the pin (40), the shoulder means (60) of the pin (40) must be forced through the respective openings (53). In instances where the pin (40) must be removed from the same side that it is installed, a much higher force is required to force the shoulder means (60) through the opening (53) of the respective first, second, and thrird conical spring washers (42, 44, 46). Consequently, a retaining mechanism (16) is provided which has very high resistance to inadvertent disassembly during use.
GB9304922A 1991-09-10 1992-06-22 Retaining mechanism Expired - Fee Related GB2264133B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75898791A 1991-09-10 1991-09-10
PCT/US1992/005281 WO1993005245A1 (en) 1991-09-10 1992-06-22 Retaining mechanism for a tooth assembly

Publications (3)

Publication Number Publication Date
GB9304922D0 GB9304922D0 (en) 1993-06-02
GB2264133A true GB2264133A (en) 1993-08-18
GB2264133B GB2264133B (en) 1995-03-29

Family

ID=25053940

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9304922A Expired - Fee Related GB2264133B (en) 1991-09-10 1992-06-22 Retaining mechanism

Country Status (6)

Country Link
AU (1) AU648008B2 (en)
CA (1) CA2091445A1 (en)
DE (1) DE4292960T1 (en)
GB (1) GB2264133B (en)
WO (1) WO1993005245A1 (en)
ZA (1) ZA925010B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA946878B (en) * 1993-09-08 1995-04-24 Keech Castings Australia Hydraulic fastening device and method
CA2466768A1 (en) * 2004-05-10 2004-10-22 Quality Steel Foundries Ltd. Locking assembly for ground engaging tools
UA108940C2 (en) 2011-07-05 2015-06-25 A holding device, a holding system between the gripping component and the covered component, the gripping component and the gripping and storing component

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796464A (en) * 1972-09-27 1974-03-12 Carmet Co Resilient connection for mining pick and bushing
US4055223A (en) * 1975-03-31 1977-10-25 Caterpillar Tractor Co. Corner tooth assembly for an earthmoving implement having a hollow rearward portion
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
US4611418A (en) * 1985-03-28 1986-09-16 Launder Richard L Locking mechanism for earth excavation teeth
US4716668A (en) * 1985-10-24 1988-01-05 Esco Corporation Excavating tooth point for use with basket spring retainer
US4843013A (en) * 1986-04-09 1989-06-27 Bionostics, Incorporated Multiple control standard for blood analysis
US4881331A (en) * 1985-04-03 1989-11-21 Gamma Lock (Proprietary) Limited Teeth for use with earth moving equipment
US4918843A (en) * 1989-02-21 1990-04-24 Caterpillar Inc. Ground engaging tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848013A (en) * 1988-10-24 1989-07-18 Caterpillar Inc. Two pin fastening assembly with interconnecting and retaining means
CA2018309C (en) * 1989-06-06 2001-05-08 Howard W. Robinson Bladesaver assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796464A (en) * 1972-09-27 1974-03-12 Carmet Co Resilient connection for mining pick and bushing
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
US4055223A (en) * 1975-03-31 1977-10-25 Caterpillar Tractor Co. Corner tooth assembly for an earthmoving implement having a hollow rearward portion
US4611418A (en) * 1985-03-28 1986-09-16 Launder Richard L Locking mechanism for earth excavation teeth
US4881331A (en) * 1985-04-03 1989-11-21 Gamma Lock (Proprietary) Limited Teeth for use with earth moving equipment
US4716668A (en) * 1985-10-24 1988-01-05 Esco Corporation Excavating tooth point for use with basket spring retainer
US4843013A (en) * 1986-04-09 1989-06-27 Bionostics, Incorporated Multiple control standard for blood analysis
US4918843A (en) * 1989-02-21 1990-04-24 Caterpillar Inc. Ground engaging tool

Also Published As

Publication number Publication date
DE4292960T1 (en) 1993-10-07
GB9304922D0 (en) 1993-06-02
ZA925010B (en) 1993-08-03
AU648008B2 (en) 1994-03-31
CA2091445A1 (en) 1993-03-11
AU2268792A (en) 1993-04-05
WO1993005245A1 (en) 1993-03-18
GB2264133B (en) 1995-03-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960622