EP1725714A1 - Godet a bord tranchant de largeur ajustable - Google Patents

Godet a bord tranchant de largeur ajustable

Info

Publication number
EP1725714A1
EP1725714A1 EP05701863A EP05701863A EP1725714A1 EP 1725714 A1 EP1725714 A1 EP 1725714A1 EP 05701863 A EP05701863 A EP 05701863A EP 05701863 A EP05701863 A EP 05701863A EP 1725714 A1 EP1725714 A1 EP 1725714A1
Authority
EP
European Patent Office
Prior art keywords
bucket
bucket according
arm
mounting member
side plates
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.)
Withdrawn
Application number
EP05701863A
Other languages
German (de)
English (en)
Inventor
Brian Mence
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.)
Individual
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
Publication of EP1725714A1 publication Critical patent/EP1725714A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/404—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/025—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with scraper-buckets, dippers or shovels

Definitions

  • the invention relates to buckets for excavators, and in particular to a bucket the width of which can be adjusted.
  • a bucket is particularly, but not exclusively useful when attached to an excavator or the backhoe of a backhoe loader.
  • Backhoes and excavators are used to dig trenches.
  • the width of trenches to be dug depends on the purpose of the trench. For example, if the trench is being dug in order to lay a telephone cable, the trench need not be as wide as a trench being dug to lay a foundation, or a surface water drain pipe.
  • excavators have been provided with a number of different buckets each having a different width.
  • the bucket When a trench of a different size is required, the bucket must be changed to the bucket whose width most closely matches the desired width of trench.
  • buckets holding the bucket to the arm of the excavator are changed manually, and often buckets will not be stored on level sites, thereby requiting manual effort lever the bucket into a position where the holes in the bucket and arm of the excavator are aligned so that holding pins can be securely located in position).
  • the fact that buckets are of a defined width means that trenches can only be dug to match the particular bucket widths, resulting in some unnecessarily wide trenches being dug.
  • the invention therefore seeks to provide an improved excavator bucket.
  • an adjustable width excavator bucket as specified in Claim 1.
  • One aspect of the invention provides a manual mechanism for adjusting the cutting width of the bucket.
  • Another aspect of the invention provides a remotely operable actuator for adjusting the cutting width of the bucket.
  • the adjustable width excavator bucket of the invention provides numerous benefits. First, it is not necessary to purchase or transport from site to site numerous buckets of different widths. Second, when on site, it is not necessary to change bucket to match a particular job, thereby removing downtime associated with moving the vehicle to the location where the desired bucket is stored and with changing the bucket. Also, the risk of accident during changing from one bucket to another is removed. Third, expensive systems for automatically coupling and uncoupling buckets to the excavator arm can be dispensed with, since the necessity to change buckets frequently will be removed. Fourth, any cutting width between respective maximum and minimum cutting widths can be selected, tiiereby avoiding the need to dump excess spoil or pour unnecessarily large volumes of concrete.
  • FIG. 1 is a schematic representation of an excavator bucket according to one aspect of the invention.
  • Figure 2 is a plan view of the excavator bucket illustrated in Figure 1;
  • FIG. 3 is a side view of the excavator bucket illustrated in Figures 1 and 2;
  • FIG 4 is a front view of the excavator bucket illustrated in Figures 1 to 3, with the sides of bucket parallel;
  • Figure 5 is a side view of a bucket according to a second embodiment of the invention.
  • an excavator bucket 1 comprising planar side walls 2 and a back plate 3, which includes a substantially arcuate portion 6 and a substantially planar portion 6a.
  • the bucket is attachable to an arm of an excavator by means of a bracket assembly comprising a pair of spaced apart plates 12, each comprising apertures 13 through which pins can be passed to secure the bucket 1 to the excavator arm.
  • the plates 12 are welded to the back plate 3.
  • each hinge 7 On a front edge of each side wall 2, there is mounted a hinge 7. Also mounted to each hinge 7 is a variable width member comprising a side plate 4 and a base plate 5 connected substantially at right angles to one another. As can be seen from Figure 1, it is an edge of the side plate 4 that is attached to the hinge 7.
  • the side and base plates 4, 5 each have a free edge 4a, 5a, which in use comprise part of the cutting edge of the bucket
  • the base plates 5 extend beneath the substantially planar section 6a of the back plate 3, the lower surface of the said planar section 6a touching or being in close relation to the upper surface of the base plate 5.
  • Attachment members 8 fixed to the inner surface of the side plates 4 are connected to a mechanism for varying the width of the bucket which shall be described in greater detail in relation to Figure 2.
  • a width adjustment mechanism M comprises a pair of spaced apart plates 9 connected one to another by a web 16.
  • Mounted rotatably in the web 16 is an externally threaded bar 15, which passes through an aperture in the back plate 3 of the bucket.
  • An internally threaded nut 14 is axially aligned with the afore-mentioned aperture, and fixed to the back plate 3, for example by welding. By rotating the threaded bar 15 the distance between the plates 9 and the back plate 3 can be varied.
  • the mechanism M further comprises arms 8, one end of each arm being located between the said plates 9, and pivotally connected to a respective pin 10 which passing through apertures in the plates 9 and the arm 8.
  • An edge 11 of each arm 8 is connected to the inside of one of the side plates 4, for example the edge 11 of an arm 8 may be welded to the inside of a side plate 4 in front of the hinge 7.
  • the apertures in the plates 9 and the arm 8 are larger than the pin 10, and are sufficiently large to accommodate a bearing in the form of a bush 12 that surrounds the pin 10.
  • the bush may be made of a compressible material such as rubber, in order that shock loads experienced during a digging operation are attenuated, rather than being transmitted directly to the other components of the mechanism M. In place of the bush 12, other suitable bearings could be used.
  • Each arm 8 further comprises a cam surface 13. The distance between the centres of the pins 10 located in the plates 9, and the shape of the cam surfaces 13 of the respective arms 8 is such that the cam surfaces touch each other.
  • the axes of the hinges 7 lie in a plane forward of the plane in which the axes of the pins 0 lie. This is so that as the bucket digs, the force on the cutting edges 4a and 5a cause the ends of the arms 8 located in the mechanism M to be pushed together, and therefore the cam surfaces 13 to be pushed together. In this way the load is carried largely by the arms 8, the hinges 7, the side walls 2, and the side plates 4, rather than the mechanism M itself.
  • FIG. 3 illustrates a second embodiment of the invention in which the threaded bar 15 and nut 14 are replaced by a double acting short stroke hydraulic ram 20 powered by the hydraulic system of the excavator vehicle. Hydraulic fluid is delivered to the ram 20 through hydraulic hoses 21 and 22.
  • the mechanism M is otherwise substantially identical to the mechanism M described with reference to Figures 1 to 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Abstract

Selon la présente invention, dans un godet à bord tranchant de largeur ajustable (1), la largeur coupante du godet est ajustable. Ledit godet comprend une plaque arrière (6), une paire de parois latérales séparées (24), et un mécanisme d'ajustement de la largeur (M), ladite distance entre les parois latérales étant ajustable de manière à faire varier la largeur coupante du godet. Ledit mécanisme permet l'ajustement de la distance entre lesdites parois latérales.
EP05701863A 2004-01-21 2005-01-14 Godet a bord tranchant de largeur ajustable Withdrawn EP1725714A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0401289A GB2410239B (en) 2004-01-21 2004-01-21 Adjustable width excavator bucket
PCT/GB2005/000094 WO2005071169A1 (fr) 2004-01-21 2005-01-14 Godet a bord tranchant de largeur ajustable

Publications (1)

Publication Number Publication Date
EP1725714A1 true EP1725714A1 (fr) 2006-11-29

Family

ID=31971209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05701863A Withdrawn EP1725714A1 (fr) 2004-01-21 2005-01-14 Godet a bord tranchant de largeur ajustable

Country Status (3)

Country Link
EP (1) EP1725714A1 (fr)
GB (1) GB2410239B (fr)
WO (1) WO2005071169A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366318A (zh) * 2017-08-01 2017-11-21 田巍岐 一种侧壁可动的挖掘机铲斗

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9015970B1 (en) 2014-01-24 2015-04-28 Northland Leasing Inc. Convertible bucket having folding wings and winglets
IT201800002984A1 (it) * 2018-02-23 2019-08-23 Cnh Ind Italia Spa Pala migliorata avente una capacita' variabile
RU184291U1 (ru) * 2018-06-13 2018-10-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" Ковш фронтального погрузчика
GB201910535D0 (en) * 2019-07-23 2019-09-04 Coulcon Ltd Excavtion apparatus and method of manufacture and use tereof
CN112942460B (zh) * 2021-03-23 2022-07-12 河南师范大学 一种卸料方便的侧卸式地下智能铲运机及卸料方法
CN115478573B (zh) * 2022-09-28 2024-04-09 徐州万茂机械制造有限公司 一种可扩容式挖机挖斗

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2123934A1 (de) * 1971-05-14 1972-11-23 Gipper, Karl, 3582 Felsberg Grabenprofilschneidlöffel
SU534552A1 (ru) * 1972-06-22 1976-11-05 Центральный Научно-Исследовательский,Экспериментальный И Проектный Институт По Сельскому Строительству Ковш экскаватора
SU435324A1 (ru) * 1972-06-22 1974-07-05 Ю. А. Вильман Ковш экскаватора
SU620542A1 (ru) * 1976-04-07 1978-08-25 Всесоюзный Научно-Исследовательский Институт По Сбору,Подготовке И Транспорту Нефти И Нефтепродуктов Ковш экскаватора
JPS5659929A (en) * 1979-10-22 1981-05-23 Kenji Okabe Digging width-adjustable shovel
JPS6023526A (ja) * 1983-07-15 1985-02-06 Tokyo Tone Kaihatsu Kk シヨベルカ−用バケツト
US4691455A (en) * 1985-09-20 1987-09-08 Newman Russell L Trenching equipment with hinged side plates
WO1990005813A1 (fr) * 1988-11-21 1990-05-31 Bowville Pty. Ltd. Godet d'excavateur
DE4022689A1 (de) * 1990-05-31 1991-12-05 Rolf Mieger Loeffel
DE19511617C2 (de) * 1995-03-30 1998-12-10 Thomas Ruff Tieflöffel für einen Löffelbagger
DE19640177B4 (de) * 1995-10-04 2005-06-23 Müller, Karlheinz Baggerlöffel
GB2341843A (en) * 1998-09-24 2000-03-29 John Edward Mansfield Variable width excavation bucket

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005071169A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366318A (zh) * 2017-08-01 2017-11-21 田巍岐 一种侧壁可动的挖掘机铲斗

Also Published As

Publication number Publication date
GB0401289D0 (en) 2004-02-25
GB2410239A (en) 2005-07-27
GB2410239B (en) 2006-12-13
WO2005071169A1 (fr) 2005-08-04

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