US3748762A - Excavator bucket with detachable side cutters - Google Patents

Excavator bucket with detachable side cutters Download PDF

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Publication number
US3748762A
US3748762A US00263160A US3748762DA US3748762A US 3748762 A US3748762 A US 3748762A US 00263160 A US00263160 A US 00263160A US 3748762D A US3748762D A US 3748762DA US 3748762 A US3748762 A US 3748762A
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US
United States
Prior art keywords
bucket
cutter
edge
side wall
bracket
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
US00263160A
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English (en)
Inventor
J Tarrant
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.)
BOFORS CO Ltd
BOFORS CO LTD GB
Original Assignee
BOFORS CO Ltd
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 BOFORS CO Ltd filed Critical BOFORS CO Ltd
Application granted granted Critical
Publication of US3748762A publication Critical patent/US3748762A/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

Definitions

  • Each cutter further has abutment means engageable with edge portions of the bucket to locate the forward part of the cutter.
  • the bracket also carries an abutment disposed opposite an abutment on the respective side wall of the bucket. Wedges are insertable between the abutments on the bracket and the respective side wall to lock the side cutters in position.
  • FIG. 2 ' sum 1 or 3 FIG. 2
  • the present invention relates to an excavator bucket which is provided with a side cutter on one or both of its side walls. Buckets of this kind are already known.
  • an object of the present invention is to provide a bucket with a side cutter which can be attached or detached in unusually short time.
  • an excavator bucket has two opposite side walls, an intermediate wall part which presents a front lower edge of the bucket, and at least one side cutter adapted to be readily attached to and detached from a respective one of the side walls, the or each side cutter being provided with an arm which extends rearwardly (i.e.
  • the side cutter also having formations adapted to engage edge portions of the bucket to locate the front portion of the cutter, and the arm carrying an abutment arranged to lie opposite an abutment on the side wall of the bucket, a wedge being insertable between the abutments to secure the side cutter in position.
  • the wedge is compressible and expansible transversely. Owing to these properties of the wedge, a squeezing effect is obtained.
  • the wedge is appropriately composed of three units. All three units are arranged longitudinally.
  • the outer units are made of a hard material, e.g. metal or plastic.
  • the intermediate unit is made of a flexible material, e.g. rubber or plastic.
  • the edge on the lower side of the arm can be made with a recess, to constitute a locking pocket for the wedge.
  • the wedge should then have a protuberant part corresponding to the recess.
  • an intermediate part 4 is arranged, which forms the front edge, the bottom and the rear wall of the bucket.
  • the edges of the opening of the bucket are referenced 5,6,7 and 8.
  • the edges of the opening are reinforced by metal strips extending round the opening.
  • the front edge 5 of the opening is a cutting edge and is provided for the purpose with three digger teeth 9,10 and 11.
  • the bucket has two lugs 44 and 45. These two lugs are parallel with each other, as will be noted from FIG. I, and are provided with two fulcrum pins 46 and 48 extending through the lugs.
  • FIG. I shows an excavator bucket with two side cutters, intended to be attached to the bucket
  • FIG. 2 shows only the lower right-hand side of the bucket, with a side cutter being inserted.
  • FIGS. 3 and 4 show two further stages of the fastening of said side cutters
  • FIGS. 5 and 6 show how a wedge is fastened to a cutter, to secure it to the bucket. (For clarity only the wedging of the left side cutter is shown).
  • the side walls 2 and 3 of the bucket each have a through hole or aperture 23 and 24, respectively.
  • Two side cutters l2 and 13 coact with the bucket.
  • the side cutter 12 is intended for attachment to the right-hand side of the bucket, and the side cutter 13 is for attachment to the left-hand side.
  • the two side cutters are identical, but are reversed, that is, mirror images of one another. Only the side cutter 12 will therefore be described in detail ⁇ It has two cutting edges 14 and 15.
  • the cutting edge 14 is arranged on a vertical wall 17, and the cutting edge 15 on a horizontal wall 16.
  • An arm or bracket 18 is directed rearwards, that is, away from the cutting edges 14 and 15. It is intended to be in contact with the outer surface 19 of the side wall 3.
  • the arm has a bent finger 20, consisting of an inner part 21 at right angles to the arm 18 and an outer part 22 parallel thereto.
  • the finger 20 is intended to be inserted through the hole 23, and the part 22 is intended to be in contact with the inner surface 25 of the side wall 3.
  • the cutter 12 is formed with a rearward-facing channel 26.
  • the cutter also has a rearwardfacing channel 27. These two channels have straight bottoms, and are intended to receive the side edge 8 and the front edge 5, respectively, of the bucket I. Said edges can have a form deviating from a straight form, and the bottoms of the channels 26 and 27 must then be shaped accordingly.
  • the arm 18 On its inner side the arm 18 has a shoulder or abutment 28, which is provided with a recess 31.
  • the shoulder 28 is intended to coact with a shoulder or abutment 29 which is formed on the outer surface 19 of the side wall 3, e.g. by the edge of the reinforcing strip.
  • the shoulder 28 is intended to lie opposite and parallel with the shoulder 29.
  • a wedge 30 is 1 intended to be inserted.
  • This wedge consists of two outer members 32 and 33, preferably made of metal and an intermediate member 34, made of flexible material, for instance, rubber or a plastics material.
  • the two outer members 32 and 33 of the wedge are each made with a protuberant section, corresponding to the recess 31 in the shoulder 28 on the inner side of the arm.
  • FIGS. 5 and 6 the rearwardly directed arm or bracket of the left-hand side cutter 13 is referenced 37 and the bent finger is referenced 38, and the two parts of the finger have the references 39 and 40.
  • the shoulder on the inner side of the arm 37 is referenced 41, and the recess in said shoulder has the reference 42.
  • the shoulder or abutment on the side wall 2 opposite the shoulder 41 is referenced 43.
  • FIG. 1 it will be seen that the side cutter 12 is moved towards the bucket 1 with its arm 18 directed towards the bucket, in the direction of the hole 23, as indicated by the arrow.
  • the cutter has come closer to the bucket, and in FIG. 3 the finger 20 has been inserted into the hole 23.
  • the channel 26 and the channel 27 are juxtaposed to the side edge 8 and the front edge respectively.
  • the cutter is now moved farther towards the rear of the bucket the said two edges will enter into the two channels.
  • the side cutter is then positioned laterally and the part 22 of the finger is in contact with the inner surface of the side wall 3.
  • the cutter 12 can still move back and forth in the longitudinal direction of the bucket. In order to prevent this, the wedge is insertcd between the shoulder 28 and the shoulder 29.
  • FIGS. 5 and 6, which illustrate the wedging of the left-hand cutter, show more clearly how the wedge is inserted.
  • FIG. 5 shows how the wedge is knocked down in the direction indicated by the arrow. Because of the resiliently compressible member 34, the wedge can be squeezed in. During the course of its-further movement downwards, the wedge comes to the position where its protuberant part coincides with the recess 42 and it can expand again. The side cutter is now firmly secured.
  • An excavator bucket comprising:
  • fastening means on the cutter and on a side wall of the bucket said fastening means including a bracket secured at one end to the cutter at a slant toward the end of the bucket opposite the said forward edge, the other end of the bracket mounting engagement means engaged with complementary receiving means on said side wall;
  • locating means including a first abutment means on the cutter in abutting engagement with edge portions of bucket walls to locate the forward portion of the cutter and a second abutment means on said bracket abutting against the respective side wall of the bucket to locate the cutter relative to the bucket; a shoulder formed on the outer surface of the respective side wall of the bucket; and
  • wedge means releasably inserted between said second abutment means and said shoulder to lock the cutter in its position relative to the bucket.
  • said wedge means includes components resiliently compressible in transverse direction.
  • said wedge comprises three longitudinally extending and side by side disposed members, the two outer ones of said members being made of rigid material and the intermediate member being made of resilient compressible material.

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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)
  • Shovels (AREA)
US00263160A 1971-06-25 1972-06-15 Excavator bucket with detachable side cutters Expired - Lifetime US3748762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2983771 1971-06-25

Publications (1)

Publication Number Publication Date
US3748762A true US3748762A (en) 1973-07-31

Family

ID=10298007

Family Applications (1)

Application Number Title Priority Date Filing Date
US00263160A Expired - Lifetime US3748762A (en) 1971-06-25 1972-06-15 Excavator bucket with detachable side cutters

Country Status (9)

Country Link
US (1) US3748762A (fr)
AT (1) AT312517B (fr)
AU (1) AU460337B2 (fr)
CA (1) CA946880A (fr)
DE (1) DE2229853A1 (fr)
FR (1) FR2143024B1 (fr)
GB (1) GB1315057A (fr)
IT (1) IT958270B (fr)
ZA (1) ZA722949B (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995384A (en) * 1974-11-25 1976-12-07 John F. Duncan Edge bit structure for implement blade
US4007550A (en) * 1975-05-19 1977-02-15 Caterpillar Tractor Co. Replaceable corner tooth assembly
US4037337A (en) * 1976-08-18 1977-07-26 Adco Buckets, Inc. Excavating bucket and teeth for a backhoe
US4047312A (en) * 1976-09-08 1977-09-13 Caterpillar Tractor Co. Corner tooth assembly
US4071967A (en) * 1977-01-21 1978-02-07 Caterpillar Tractor Co. Quick change corner tooth assembly for loader buckets
US4204349A (en) * 1978-12-22 1980-05-27 Clark Equipment Company Corner tooth construction
US4616433A (en) * 1985-02-12 1986-10-14 Caterpillar Inc. Ripping bucket arrangement
US5469648A (en) * 1993-02-02 1995-11-28 Esco Corporation Excavating tooth
US5680717A (en) * 1995-11-14 1997-10-28 Bierwith; Robert S. Excavation bucket
US20060042130A1 (en) * 2004-08-24 2006-03-02 Lahood James R Edge protector assembly for bucket assembly
US20060225312A1 (en) * 2005-03-30 2006-10-12 Striegel Monte G Trench wall ripper apparatus
US20080066350A1 (en) * 2004-09-09 2008-03-20 Humphries Robert G Method and Apparatus for Excavation of a Trench
US20090293320A1 (en) * 2008-06-02 2009-12-03 Robert Cummings Snow blower with edge blades
US7992328B2 (en) 2005-03-30 2011-08-09 Striegel Monte G Trench wall ripper apparatus
US20130008062A1 (en) * 2009-12-24 2013-01-10 Cqms Pty Ltd Wear assembly for an excavator bucket
US20140082976A1 (en) * 2012-09-21 2014-03-27 Liebherr-Mining Equipment Colmar Sas Wing shroud for an earth moving machine bucket, bucket and earth moving machine
USD769945S1 (en) * 2014-12-05 2016-10-25 Caterpillar Inc. Sidebar protector
USD788826S1 (en) * 2016-02-09 2017-06-06 Caterpillar Inc. Sidebar protector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182057A (en) * 1978-06-16 1980-01-08 Caterpillar Tractor Co. Releasable corner tooth assembly
FR2500029A1 (fr) * 1981-02-16 1982-08-20 Ardennes Equip Perfectionnements aux dents laterales de godets de pelles mecaniques
DE3244711C2 (de) * 1982-12-03 1985-05-30 O & K Orenstein & Koppel Ag, 1000 Berlin Eimer, Schaufel, Becher oder dergl. für Bagger, Aufnahmegeräte oder dergl.
DE19920115C2 (de) * 1999-05-03 2001-07-05 Thomas Zinser Abstands- und Führungseinrichtung für Baggerwerkzeuge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716432A (en) * 1926-05-22 1929-06-11 Keystone Driller Co Excavating scoop
US2259456A (en) * 1940-05-25 1941-10-21 Arthur N Crawford Bucket tooth unit
US2846791A (en) * 1955-08-18 1958-08-12 Tooth H & L Co Mounting for digger tooth blade
US3160967A (en) * 1963-09-10 1964-12-15 Irvin H Nichols Removable blade arrangment with recesses therein for receiving support projections
US3685177A (en) * 1970-08-13 1972-08-22 Esco Corp Two piece cutting edge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716432A (en) * 1926-05-22 1929-06-11 Keystone Driller Co Excavating scoop
US2259456A (en) * 1940-05-25 1941-10-21 Arthur N Crawford Bucket tooth unit
US2846791A (en) * 1955-08-18 1958-08-12 Tooth H & L Co Mounting for digger tooth blade
US3160967A (en) * 1963-09-10 1964-12-15 Irvin H Nichols Removable blade arrangment with recesses therein for receiving support projections
US3685177A (en) * 1970-08-13 1972-08-22 Esco Corp Two piece cutting edge

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995384A (en) * 1974-11-25 1976-12-07 John F. Duncan Edge bit structure for implement blade
US4007550A (en) * 1975-05-19 1977-02-15 Caterpillar Tractor Co. Replaceable corner tooth assembly
US4037337A (en) * 1976-08-18 1977-07-26 Adco Buckets, Inc. Excavating bucket and teeth for a backhoe
US4047312A (en) * 1976-09-08 1977-09-13 Caterpillar Tractor Co. Corner tooth assembly
US4071967A (en) * 1977-01-21 1978-02-07 Caterpillar Tractor Co. Quick change corner tooth assembly for loader buckets
US4204349A (en) * 1978-12-22 1980-05-27 Clark Equipment Company Corner tooth construction
US4616433A (en) * 1985-02-12 1986-10-14 Caterpillar Inc. Ripping bucket arrangement
US5469648A (en) * 1993-02-02 1995-11-28 Esco Corporation Excavating tooth
US5680717A (en) * 1995-11-14 1997-10-28 Bierwith; Robert S. Excavation bucket
US7275338B2 (en) 2004-08-24 2007-10-02 Caterpillar Inc Edge protector assembly for bucket assembly
US20070101622A1 (en) * 2004-08-24 2007-05-10 Lahood James R Edge protector assembly for bucket assembly
US20060042130A1 (en) * 2004-08-24 2006-03-02 Lahood James R Edge protector assembly for bucket assembly
US20080066350A1 (en) * 2004-09-09 2008-03-20 Humphries Robert G Method and Apparatus for Excavation of a Trench
US7992328B2 (en) 2005-03-30 2011-08-09 Striegel Monte G Trench wall ripper apparatus
US7712234B2 (en) * 2005-03-30 2010-05-11 Striegel Monte G Trench wall ripper apparatus
US20060225312A1 (en) * 2005-03-30 2006-10-12 Striegel Monte G Trench wall ripper apparatus
US20090293320A1 (en) * 2008-06-02 2009-12-03 Robert Cummings Snow blower with edge blades
US20130008062A1 (en) * 2009-12-24 2013-01-10 Cqms Pty Ltd Wear assembly for an excavator bucket
US9091042B2 (en) * 2009-12-24 2015-07-28 Cqms Pty Ltd Wear assembly for an excavator bucket
US20140082976A1 (en) * 2012-09-21 2014-03-27 Liebherr-Mining Equipment Colmar Sas Wing shroud for an earth moving machine bucket, bucket and earth moving machine
US10208461B2 (en) * 2012-09-21 2019-02-19 Liebherr-Mining Equipment Colmar Sas Wing shroud for an earth moving machine bucket, bucket and earth moving machine
USD769945S1 (en) * 2014-12-05 2016-10-25 Caterpillar Inc. Sidebar protector
USD790600S1 (en) 2014-12-05 2017-06-27 Caterpillar Inc. Sidebar protector
USD788826S1 (en) * 2016-02-09 2017-06-06 Caterpillar Inc. Sidebar protector

Also Published As

Publication number Publication date
DE2229853A1 (de) 1973-01-11
AT312517B (de) 1974-01-10
FR2143024A1 (fr) 1973-02-02
AU460337B2 (en) 1975-04-24
ZA722949B (en) 1973-02-28
AU4194572A (en) 1973-12-20
IT958270B (it) 1973-10-20
CA946880A (en) 1974-05-07
GB1315057A (en) 1973-04-26
FR2143024B1 (fr) 1977-12-23

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