US3914885A - Public works machines - Google Patents

Public works machines Download PDF

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Publication number
US3914885A
US3914885A US411084A US41108473A US3914885A US 3914885 A US3914885 A US 3914885A US 411084 A US411084 A US 411084A US 41108473 A US41108473 A US 41108473A US 3914885 A US3914885 A US 3914885A
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US
United States
Prior art keywords
leading edge
section
rings
guide
wear
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
US411084A
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English (en)
Inventor
Rene Victor 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.)
Poclain SA
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 US3914885A publication Critical patent/US3914885A/en
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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets

Definitions

  • the wear parts are retained on the leading edge by a removable stop member at UNTED STATES PATENTS one end of the leading edge and by a fixed or remov- Young R able stop members at the other end 1,937,243 ll/l933 Pearch 37/l4l R X 2,353,685 7/1944 Askue 37/141 T 2 ims, 6 Drawing Figures U.S. Patent Oct. 23, 1975 Sheet 1 of 2 3,914,885
  • the present invention relates to a working tool of a public works machine, such as en excavation bucket.
  • the invention has precisely for its object a working tool of public works machine, such as an excavation bucket having a penetrating or so-called leading edge", which remedies the above-mentioned drawbacks.
  • the leading edge is constituted by:
  • a guide comprising a section of substantially constant cross-section
  • Each wearing part comprises a section which exactly complements that of the guide, whilst said wearing parts are slidingly assembled on this guide and each wearing part is made integral with the guide without interposition of complementary wedges between said guide and wearing part.
  • a stop member is disposed at each of the ends of the leading edge, whilst at least one of said stop members is removably fixed, in manner known per se, and that finally, said wearing parts are constituted of a material, known per se, which has a high resistance to wear and tear.
  • the guide is advantageously constituted by a sectioned bar of constant cross-section which is integral with the leading edge and constitutes a male bead thereof, whilst the wearing parts are shaped as rings, each provided with a slot for introduction onto this male bead and a recess, whose sections are exactly complementary of that of the guide.
  • wearing parts are preferably constituted, in manner known per se, by parts of a first type shaped as penetrating teeth, on the other hand by parts of a second type forming spacer parts, at least one spacer part being interposed between two penetrating teeth.
  • FIG. 1 is a view in elevation of an excavation bucket in accordance with the invention
  • FIG. 2 is a view in the direction of arrow F of FIG. 1:
  • FIG. 3 is a section along III-III of FIG. 2;
  • FIG. 4 is a section similar to that of FIG. 3 of a variant embodiment.
  • FIG. 5 is a section along VV of FIG. 2, and
  • FIG. 6 is a section along VIVI of FIG. 1
  • the working tool described is constituted by a loading bucket defined in particular by a flat base 1 and by two side sheets 2.
  • Forks 3 known per se are intended to support the axes of articulation, on the one hand of the bucket on the dipperstick of the machine provided therewith and on the other hand of the jack manoeuvring said bucket.
  • the sides 2 and base 1 are themselves delimited towards the outside of the bucket, by a leading edge constituted in the present case by a section 4 of substantially circular and constant cross-section.
  • wearing rings made of a material, known per se, having a high resistance to wear and tear, such as a special steel, have an internal section 5 and are provided with a slot 6.
  • the section 5 corresponds to the outer section 40 of the section 4, whilst the distance between lips 7 of the slot 6 is slightly greater than the thickness of the sheets of the sides 2 or the base 1. Consequently, these rings are mounted to slide on the section 4.
  • Ring 8 has a substantially cylindrical outer section. of circular cross-section. It constitutes a part which is particularly capable of having the function of a spacer member.
  • rings 8 and in the present case two rings 8, are thus interposed between two rings 9 of a second type which, in fact, each constitute a tooth of the bucket penetrating into the material to be moved.
  • Rings 9 constituting teeth are generally disposed only in line with the base I. This is the case of the example shown. However, it is still possible to dispose rings 9 in line with sides 2. In the bucket described previously, only the rings of the first type, 8, are mounted on the part of the section 4 defining said sides 2.
  • the thickness E of the ring 8 is substantially constant.
  • the thickness is variable.
  • the maximum thickness E corresponds to the intersection of said ring by the extension of the median plane 12 of the base 1.
  • section 4 may have a cross-section other than circular, provided that the outer section 4a of said cross-section maintains a substantially invariable form along said section 4.
  • the rings 8, 8a, 9 or 10 easily slide on section 4 and consequently to provide the leading edge. constituted by this section. with a coating which is very resistant to wear and tear.
  • a stop which may be definitively integral with the section 4 and. on the other hand. to prevent any reverse slide, this being effected by a ring l which is fixed removably, or more generally by any removable stop such as a simple pin.
  • rings 80 instead of rings 8 increases the periods of time between replacements or worn rings by new ones since. where the wear and tear is at a maximum, the thickness of metal E has also been provided to be maximum.
  • a working tool of a public works machine such as an excavation bucket. comprising a penetrating leading edge with a guide having a sectioned bar of constant cross-section integral with the leading edge and constituting a male bead thereof a plurality of wearing parts fabricated of a material having a high resistance to wear and tear and shaped as rings with a slot for introduction on said male bead and with a recess, the sections of which are exactly complementary to and slidably mountable on said guide, and at least two stop members disposed on opposite ends of the leading edge with at least one of said stop members removably fixed to said leading edge wherein each wearing part is rendered integral with the guide.
  • wearing parts are of two types, the first type extending outwardly from the leading edge to form penetrating teeth and the second type forming spacer parts wherein at least one spacer part is interposed between two penetrating teeth.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
US411084A 1972-11-14 1973-10-30 Public works machines Expired - Lifetime US3914885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7240398A FR2206416B1 (da) 1972-11-14 1972-11-14

Publications (1)

Publication Number Publication Date
US3914885A true US3914885A (en) 1975-10-28

Family

ID=9107160

Family Applications (1)

Application Number Title Priority Date Filing Date
US411084A Expired - Lifetime US3914885A (en) 1972-11-14 1973-10-30 Public works machines

Country Status (10)

Country Link
US (1) US3914885A (da)
JP (1) JPS49134102A (da)
AR (1) AR199500A1 (da)
BE (1) BE807228A (da)
BR (1) BR7308897D0 (da)
DE (1) DE2356715A1 (da)
ES (1) ES420543A1 (da)
FR (1) FR2206416B1 (da)
GB (1) GB1415101A (da)
IT (1) IT996945B (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123861A (en) * 1976-08-18 1978-11-07 Hemphill Charles W Method of excavating earth with a bucket
US4449309A (en) * 1979-03-05 1984-05-22 Gh Hensley Industries, Inc. Flat bottom bucket and digging teeth
US4570366A (en) * 1984-08-10 1986-02-18 Yost Kenneth J Snowplow and blade having triangular rotatable cutting block teeth
US4625437A (en) * 1985-04-15 1986-12-02 Engineered Equipment Company Shroud for a digging bucket lip
US4651450A (en) * 1984-04-11 1987-03-24 Fallline Corporation Packer bar assembly
US5077918A (en) * 1990-09-10 1992-01-07 Caterpillar Inc. Cutting edge assembly for an implement
US20060042130A1 (en) * 2004-08-24 2006-03-02 Lahood James R Edge protector assembly for bucket assembly
US20060255653A1 (en) * 2004-09-02 2006-11-16 John Gibbins Replacement Part Assembly
CN101967837A (zh) * 2010-09-13 2011-02-09 江苏宜鹏锻压机械制造有限公司 一种挖掘机的铲斗斗唇及其制备方法
US20150218774A1 (en) * 2011-05-02 2015-08-06 Harnischfeger Technologies, Inc. Straight taper dipper
US9359745B2 (en) 2013-10-15 2016-06-07 Caterpillar Inc. Bucket edge protection system
US10190291B2 (en) 2016-12-14 2019-01-29 Caterpillar Inc. Modular sidebar protecting wear member and system
US10287754B2 (en) 2016-12-14 2019-05-14 Caterpillar Inc. Modular sidebar protecting wear member and system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4699859B2 (ja) * 2005-10-13 2011-06-15 株式会社小松製作所 バケットおよび作業機械
DE102006055753B4 (de) * 2006-11-25 2008-10-23 Terex Gmbh Aufnahmeelement für Schüttgut

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872865A (en) * 1930-03-10 1932-08-23 American Manganese Steel Co Digging element for excavating machines
US1937243A (en) * 1932-02-11 1933-11-28 Penco Steel Corp Detachable road scraper blade
US2353685A (en) * 1943-01-07 1944-07-18 Cleveland Trencher Co Excavator bucket
US2482320A (en) * 1945-11-19 1949-09-20 Harry J Clemmer Drag scraper construction
US3029534A (en) * 1960-05-23 1962-04-17 Rakisits Michael Bulldozer moldboard corner bit
US3032901A (en) * 1960-03-25 1962-05-08 Electric Steel Foundry Co Scraper bit
US3762079A (en) * 1972-10-02 1973-10-02 Caterpillar Tractor Co Quick-change cutting edge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872865A (en) * 1930-03-10 1932-08-23 American Manganese Steel Co Digging element for excavating machines
US1937243A (en) * 1932-02-11 1933-11-28 Penco Steel Corp Detachable road scraper blade
US2353685A (en) * 1943-01-07 1944-07-18 Cleveland Trencher Co Excavator bucket
US2482320A (en) * 1945-11-19 1949-09-20 Harry J Clemmer Drag scraper construction
US3032901A (en) * 1960-03-25 1962-05-08 Electric Steel Foundry Co Scraper bit
US3029534A (en) * 1960-05-23 1962-04-17 Rakisits Michael Bulldozer moldboard corner bit
US3762079A (en) * 1972-10-02 1973-10-02 Caterpillar Tractor Co Quick-change cutting edge

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123861A (en) * 1976-08-18 1978-11-07 Hemphill Charles W Method of excavating earth with a bucket
US4449309A (en) * 1979-03-05 1984-05-22 Gh Hensley Industries, Inc. Flat bottom bucket and digging teeth
US4651450A (en) * 1984-04-11 1987-03-24 Fallline Corporation Packer bar assembly
US4570366A (en) * 1984-08-10 1986-02-18 Yost Kenneth J Snowplow and blade having triangular rotatable cutting block teeth
US4625437A (en) * 1985-04-15 1986-12-02 Engineered Equipment Company Shroud for a digging bucket lip
US5077918A (en) * 1990-09-10 1992-01-07 Caterpillar Inc. Cutting edge assembly for an implement
US7275338B2 (en) 2004-08-24 2007-10-02 Caterpillar Inc Edge protector assembly for bucket assembly
US20060042130A1 (en) * 2004-08-24 2006-03-02 Lahood James R Edge protector assembly for bucket assembly
US20060255653A1 (en) * 2004-09-02 2006-11-16 John Gibbins Replacement Part Assembly
US8333439B2 (en) 2004-09-02 2012-12-18 John Gibbins Replacement part assembly
CN101967837A (zh) * 2010-09-13 2011-02-09 江苏宜鹏锻压机械制造有限公司 一种挖掘机的铲斗斗唇及其制备方法
US20150218774A1 (en) * 2011-05-02 2015-08-06 Harnischfeger Technologies, Inc. Straight taper dipper
US10519621B2 (en) * 2011-05-02 2019-12-31 Joy Global Surface Mining Inc Straight taper dipper
US10934682B2 (en) 2011-05-02 2021-03-02 Joy Global Surface Mining Inc Straight taper dipper
US9359745B2 (en) 2013-10-15 2016-06-07 Caterpillar Inc. Bucket edge protection system
US10190291B2 (en) 2016-12-14 2019-01-29 Caterpillar Inc. Modular sidebar protecting wear member and system
US10287754B2 (en) 2016-12-14 2019-05-14 Caterpillar Inc. Modular sidebar protecting wear member and system

Also Published As

Publication number Publication date
JPS49134102A (da) 1974-12-24
BE807228A (fr) 1974-03-01
BR7308897D0 (pt) 1974-09-05
AR199500A1 (es) 1974-09-09
FR2206416A1 (da) 1974-06-07
GB1415101A (en) 1975-11-26
IT996945B (it) 1975-12-10
FR2206416B1 (da) 1975-01-03
DE2356715A1 (de) 1974-05-16
ES420543A1 (es) 1976-05-01

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