WO2005071169A1 - Adjustable width excavator bucket - Google Patents

Adjustable width excavator bucket Download PDF

Info

Publication number
WO2005071169A1
WO2005071169A1 PCT/GB2005/000094 GB2005000094W WO2005071169A1 WO 2005071169 A1 WO2005071169 A1 WO 2005071169A1 GB 2005000094 W GB2005000094 W GB 2005000094W WO 2005071169 A1 WO2005071169 A1 WO 2005071169A1
Authority
WO
WIPO (PCT)
Prior art keywords
bucket
bucket according
arm
mounting member
side plates
Prior art date
Application number
PCT/GB2005/000094
Other languages
French (fr)
Inventor
Brian Mence
Original Assignee
Brian Mence
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 Brian Mence filed Critical Brian Mence
Priority to EP05701863A priority Critical patent/EP1725714A1/en
Publication of WO2005071169A1 publication Critical patent/WO2005071169A1/en

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.

Abstract

In an adjustable width excavator bucket (1) the bucket's cutting width is adjustable. The bucket comprises a back plate (6), a pair of spaced apart side walls (24), and a width adjustment mechanism (M), the distance between the side walls being adjustable to vary the cutting width of the bucket, the mechanism providing for adjustment of the distance between the said side walls.

Description

ADJUSTABLE WIDTH EXCAVATOR BUCKET
Field of the Invention
The invention relates to buckets for excavators, and in particular to a bucket the width of which can be adjusted. Such a bucket is particularly, but not exclusively useful when attached to an excavator or the backhoe of a backhoe loader.
Background of the Invention
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.
To date, excavators have been provided with a number of different buckets each having a different width. 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.
The requirement to change buckets, and to use a bucket of defined width presents a number of problems. First, it is necessary to buy a number of buckets, which is costly. Second, it is necessary to transport the different width buckets from site to site. Third, on building sites, when it is necessary to change the bucket, the vehicle must traverse the site to the location of the buckets, which wastes time and can cut up the site in wet conditions. Fourth, changing the buckets takes time and is a potential source of accidents (pins 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). Fifth, 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.
So far, attempts made to overcome some of the above-mentioned problems have concentrated on simplifying the attachment and release of buckets to the arm of the excavator. Whilst such systems do reduce the time taken to change buckets, and remove the need for personnel to be i the region of the bucket during change over, thereby reducing the potential for accident, many of the above-identified problems are not addressed.
The invention therefore seeks to provide an improved excavator bucket.
Summary of the Invention
According to the invention there is provided 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.
Brief Description of the Drawings
In the drawings, which by way of example, illustrates embodiments of an adjustable width excavator bucket:
Figure 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;
Figure 3 is a side view of the excavator bucket illustrated in Figures 1 and 2;
Figure 4 is a front view of the excavator bucket illustrated in Figures 1 to 3, with the sides of bucket parallel; and
Figure 5 is a side view of a bucket according to a second embodiment of the invention.
Detailed Description of the Preferred Embodiments
Referring now to Figure 1, there is shown 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.
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.
Referring now to Figures 1 and 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. In the example shown in Figure 2, 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.
In use, when the operator wants to change the cutting width of the bucket, he attaches a tool to, and then rotates, the threaded bar 15. As mentioned above, rotating the threaded bar 5 moves the plates 9 towards and away from the back plate 3. The arms 8 are fixed to the side plates 4, which are in turn pivotally attached to the side walls 2. Moving the plates 9 away from the back plate therefore causes the arms to pivot around pins 10, and a corresponding pivoting motion of the side plates 4, thereby adjusting the width between the cutting edges of the side plates 4.
Referring again to Figure 2, it can be seen that 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.
With the bucket 1 configured to provide the narrowest cutting width respective side plates 2 and 4 are aligned, and the side plates 4 of opposing sides of the bucket are substantially parallel. As shown by the broken line illustrating the edge of the base plates 5, in the narrowest cutting width configuration, the parallel free edges of the base plates 5 touch one another. The arrow X illustrate movement of a side plate 4 and its attached base plate 5 to a wider cutting width.
From Figure 3, the position of the threaded bar 15 and the nut 14 can be seen. The bucket 1 is attached to the arm of an excavator by suitable pins passing through the apertures 13 and corresponding apertures in the excavator arm. The position of the threaded bar 15 is such that it is easily accessible for adjustment of the bucket width. Figure 6 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.

Claims

Claims
1. An excavator bucket having an adjustable cutting width, the bucket comprising a back plate, a pair of spaced apart side walls, and a width adjustment mechanism, wherein the distance between the side walls is adjustable to vary the cutting width of the bucket, and wherein the mechanism provides for adjustment of the distance between the said side walls.
2. An excavator according to Claim 1, wherein each side wall includes a hinge having a longitudinal axis and a side plate attached to the hinge for pivotal movement about the said axis, and wherein the mechanism provides for movement of the side plates about said axis to adjust the cutting width .
3. A bucket according to Claim 2, wherein the mechanism comprises a pair of arms, a mounting member and an actuator, wherein each one of the arms is attached to a respective one of the side plates, and to the mounting member, and wherein adjustment of the actuator generates the said movement of die side plates.
4. A bucket according to Claim 3, wherein each arm is fixedly attached to a respective one of the said side plates.
5. A bucket according to Claim 3 or 4, wherein each arm is pivo tally connected to the mounting member.
6. A bucket according to Claim 5, wherein each arm is pivotally mounted in the mounting member about a bearing.
7. A bucket according to Claim 6, wherein the said bearing is a bush.
8. A bucket according to Claim 7, wherein the bush is made of a compressible material.
9. A bucket according to any of Claims 2 to 8, wherein each arm comprises a cam surface, and wherein each arm is pivotally mounted on the mounting means such that the said cam surface of one arm touches the corresponding cam surface of the other arm through the range of pivotal movement of the said arm.
10. A bucket according to any Claims 2 to 9, wherein the actuator comprises an externally threaded bar, which passes through a co-operating internally threaded bore, wherein one end of said bar is rotatably located in the mounting member.
11. A bucket according to any preceding claim, wherein the actuator comprises a piston and cylinder arrangement.
12. A bucket according to any of Claims 2 to 11, wherein the mounting member is located within the bucket in front of the back plate and behind the said longitudinal axis of the hinges.
13. A bucket according to Claim 12, wherein with the side plates opened to their widest position, the plane in -which the pivot mountings of the arms lie remains between the back plate and the longitudinal axes of the hinges.
14. A bucket according to any preceding claim, wherein a base plate extends from a bottom edge of each side plate or side plate towards the centre of the bucket.
15. A bucket according to Claim 14, wherein a free edge of one base plate substantially abuts a free edge of the other base plate with the side plates in a substantially parallel configuration.
16. A bucket according to Claim 14 or 15, wherein another free edge of each base plate forms a cutting edge.
17. A bucket according to Claim 16, wherein a planar surface of each base plate substantially abuts a planar surface of the back plate.
18. An excavator bucket substantially as described with reference to, and as shown in, the drawings.
PCT/GB2005/000094 2004-01-21 2005-01-14 Adjustable width excavator bucket WO2005071169A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05701863A EP1725714A1 (en) 2004-01-21 2005-01-14 Adjustable width excavator bucket

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0401289A GB2410239B (en) 2004-01-21 2004-01-21 Adjustable width excavator bucket
GB0401289.4 2004-01-21

Publications (1)

Publication Number Publication Date
WO2005071169A1 true WO2005071169A1 (en) 2005-08-04

Family

ID=31971209

Family Applications (1)

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PCT/GB2005/000094 WO2005071169A1 (en) 2004-01-21 2005-01-14 Adjustable width excavator bucket

Country Status (3)

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

Cited By (3)

* 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
RU184291U1 (en) * 2018-06-13 2018-10-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" BUCKET FRONTAL LOADER
CN112942460A (en) * 2021-03-23 2021-06-11 河南师范大学 Side-dumping type underground intelligent scraper convenient to unload and unloading method

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CN107366318B (en) * 2017-08-01 2019-09-13 泉州台商投资区泰全机械科技有限公司 A kind of power shovel that side wall is movable
IT201800002984A1 (en) * 2018-02-23 2019-08-23 Cnh Ind Italia Spa IMPROVED SHOVEL WITH VARIABLE CAPACITY
GB201910535D0 (en) * 2019-07-23 2019-09-04 Coulcon Ltd Excavtion apparatus and method of manufacture and use tereof
CN115478573B (en) * 2022-09-28 2024-04-09 徐州万茂机械制造有限公司 But dilatation formula digger bucket

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Publication number Priority date Publication date Assignee Title
DE2123934A1 (en) * 1971-05-14 1972-11-23 Gipper, Karl, 3582 Felsberg Trench profile cutting bucket
SU435324A1 (en) * 1972-06-22 1974-07-05 Ю. А. Вильман EXCAVATOR BUCKET
SU534552A1 (en) * 1972-06-22 1976-11-05 Центральный Научно-Исследовательский,Экспериментальный И Проектный Институт По Сельскому Строительству Excavator bucket
JPS6023526A (en) * 1983-07-15 1985-02-06 Tokyo Tone Kaihatsu Kk Bucket for shovel car
US4691455A (en) * 1985-09-20 1987-09-08 Newman Russell L Trenching equipment with hinged side plates
WO1990005813A1 (en) * 1988-11-21 1990-05-31 Bowville Pty. Ltd. Excavator bucket
EP0459100A1 (en) * 1990-05-31 1991-12-04 Rolf Mieger Bucket
DE19640177A1 (en) * 1995-10-04 1997-04-10 Karlheinz Mueller Excavating shovel for earthworks
GB2341843A (en) * 1998-09-24 2000-03-29 John Edward Mansfield Variable width excavation bucket

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SU620542A1 (en) * 1976-04-07 1978-08-25 Всесоюзный Научно-Исследовательский Институт По Сбору,Подготовке И Транспорту Нефти И Нефтепродуктов Excavator bucket
JPS5659929A (en) * 1979-10-22 1981-05-23 Kenji Okabe Digging width-adjustable shovel
DE19511617C2 (en) * 1995-03-30 1998-12-10 Thomas Ruff Backhoe bucket for a backhoe

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Publication number Priority date Publication date Assignee Title
DE2123934A1 (en) * 1971-05-14 1972-11-23 Gipper, Karl, 3582 Felsberg Trench profile cutting bucket
SU435324A1 (en) * 1972-06-22 1974-07-05 Ю. А. Вильман EXCAVATOR BUCKET
SU534552A1 (en) * 1972-06-22 1976-11-05 Центральный Научно-Исследовательский,Экспериментальный И Проектный Институт По Сельскому Строительству Excavator bucket
JPS6023526A (en) * 1983-07-15 1985-02-06 Tokyo Tone Kaihatsu Kk Bucket for shovel car
US4691455A (en) * 1985-09-20 1987-09-08 Newman Russell L Trenching equipment with hinged side plates
WO1990005813A1 (en) * 1988-11-21 1990-05-31 Bowville Pty. Ltd. Excavator bucket
EP0459100A1 (en) * 1990-05-31 1991-12-04 Rolf Mieger Bucket
DE19640177A1 (en) * 1995-10-04 1997-04-10 Karlheinz Mueller Excavating shovel for earthworks
GB2341843A (en) * 1998-09-24 2000-03-29 John Edward Mansfield Variable width excavation bucket

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Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 146 (M - 389) 21 June 1985 (1985-06-21) *

Cited By (3)

* 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
RU184291U1 (en) * 2018-06-13 2018-10-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" BUCKET FRONTAL LOADER
CN112942460A (en) * 2021-03-23 2021-06-11 河南师范大学 Side-dumping type underground intelligent scraper convenient to unload and unloading method

Also Published As

Publication number Publication date
GB0401289D0 (en) 2004-02-25
GB2410239B (en) 2006-12-13
GB2410239A (en) 2005-07-27
EP1725714A1 (en) 2006-11-29

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