US20100058622A1 - Tooth bar mounting - Google Patents
Tooth bar mounting Download PDFInfo
- Publication number
- US20100058622A1 US20100058622A1 US12/520,369 US52036907A US2010058622A1 US 20100058622 A1 US20100058622 A1 US 20100058622A1 US 52036907 A US52036907 A US 52036907A US 2010058622 A1 US2010058622 A1 US 2010058622A1
- Authority
- US
- United States
- Prior art keywords
- mounting
- tooth bar
- assembly
- thumb
- mounting plate
- 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.)
- Abandoned
Links
- 210000003813 thumb Anatomy 0.000 claims abstract description 32
- 210000003811 finger Anatomy 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
- 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
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/962—Mounting of implements directly on tools already attached to the machine
-
- 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
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
Definitions
- This invention relates to material handling equipment such as excavators, backhoes, and clamping and grappling equipment, and the like. More particularly it relates to a mounting for a tooth bar on a thumb assembly for use with such equipment.
- thumb with attached tooth bar
- the thumb is used in conjunction with the excavator bucket so as to make the bucket more effective in picking up material.
- a thumb is a particularly useful means of grabbing material which would otherwise be difficult to be picked up solely by a bucket.
- the thumb is typically pivotally mounted to the excavator arm and is controllable, by an hydraulic ram.
- the thumb has a tooth bar attached to its distal outer end, this tooth bar generally being configured to suit the particular type of bucket with which it is to be used.
- the tooth bar may have four or six teeth depending on the number of teeth mounted to the edge of the bucket.
- tooth bar may be welded to the thumb, but with a more modular system it is more practical to have bolt on tooth bars.
- Bolt on tooth bars are already known, however those that are known generally suffer from draw backs - the main one being that they tend to work loose as a consequence of the forces, and sometimes extreme treatment, which the thumb experiences during normal use.
- a mounting for a tooth bar to a mounting surface of a thumb sub-assembly including one or more inwardly narrowing slots located adjacent the mounting surface and into which a part of the mounting portion of the tooth bar can be wedgingly engaged, there being means for fixing the tooth bar into engagement with the mounting surface following the mounting portion being wedgingly engaged.
- FIG. 1 illustrates an exploded perspective view of the components of a thumb sub-assembly and associated tooth bar which is mountable to the sub-assembly by the mounting according to the present invention
- FIG. 2 illustrates a perspective view of the thumb showing the tooth bar mounted to the thumb subassembly
- FIG. 3 illustrates a side elevation view of the thumb when mounted to an excavator arm
- FIG. 4 illustrates a perspective view of the arrangement shown in FIG. 3 but with the thumb inter-engaging with the bucket as shown in dotted detail in FIG. 3 .
- FIGS. 1 and 2 show a tooth bar of a “universal” type.
- FIGS. 3 and 4 show a tooth bar having four teeth configured to inter-engage with the five teeth on the cutting edge of the excavator bucket.
- Other configurations of tooth bar can be mounted to the thumb assembly using the mounting of the present invention.
- FIG. 1 shows the component parts of the thumb.
- This includes a thumb subassembly 10 and tooth bar 11 .
- the subassembly 10 has a mounting plate 12 which forms a mounting surface 12 a against which a plate 13 of the tooth bar 11 can engage and be bolted thereto by a series of bolts and associated nuts 14 .
- the subassembly 10 includes a pair of side plates 15 which, in accordance with conventional construction, include along one edge thereof serrations or teeth 15 . At the ends of the side plates 15 opposite to mounting plate 12 are a pair of aligned openings 17 . Bushes 18 are provided for the openings 17 . Through the bushes 18 is engaged a pin 19 by which, together with selected spacers 20 , the subassembly 10 can be typically attached to the excavator arm E. To one end of the pin 19 is attached a radial extending plate 21 to which a retainer bar 22 is fitted.
- a mounting plate 23 which, as more clearly shown in FIGS. 1 and 4 , carries flanges 24 having openings therein which align with openings in the side plates 15 and through which a thumb pin 25 can be engaged.
- This provides a mounting for the bush 26 of the piston rod of hydraulic ram 27 .
- the body of the hydraulic ram 27 has a bush 28 which is engaged in bracket 29 via pin 30 .
- the teeth assembly 31 Attached to the mounting plate 13 of the tooth bar 11 is the teeth assembly 31 .
- This can include a plurality of teeth 32 (see FIG. 4 ) or in the more universal fitting of FIGS. 1 and 2 a toothed or serrated plate 33 .
- the upper edge of the mounting plate 13 is preferably beveled as indicated by numeral 34 .
- the mounting plate 13 further includes a series, of openings which align with elongate openings 35 in the mounting plate 12 of the subassembly 10 .
- the bolts 14 pass through these aligned openings and with the associated nuts bolt the mounting plates 12 and 13 together.
- the mounting according to the present invention includes a plurality of flanges 36 which, in the illustrated form, are a pair of parallel spaced apart flanges mounted to the mounting plate 23 .
- These flanges 36 are, in the illustrated form of the construction, located either side of an opening 37 formed in the mounting plate 23 .
- Each of the mounting flanges 36 have a finger portion 37 which extends over the mounting surface of the mounting plate 12 .
- These fingers 37 include an edge surface 38 which faces towards the mounting surface 12 a and is configured such that the distance between the edge 38 and the mounting surface 12 a decreases inwardly from the distal ends of finger 37 . The result is a narrowing slot into which the beveled edge 34 can be engaged when the mounting plate 13 is bought into engagement with mounting plate 12 . There is thus a wedging action between the edge 38 /mounting surface 12 a and the mounting plate 13 of the tooth bar 11 .
- the edge 34 is introduced between the edge surfaces 38 of the fingers 37 and the mounting surface 12 a .
- the tooth bar 11 is then driven into hard engagement with the fingers 37 so that the edge 34 is firmly wedged into position. This is shown in more detail in the enlarged part view in FIG. 3 .
- the bolts 14 are then introduced through the aligned openings 35 and the openings in the mounting plate 13 and the tooth bar thereby bolted onto the subassembly 10 .
- the elongate nature of the openings 35 ensure that the mounting plates 12 and 13 can be bolted together irrespective of the final position of the edge 34 between the fingers 37 and mounting plate 12 .
- the tooth bar 11 loosens it is simply a matter of loosening off the nuts/bolts 14 followed by a driving force applied to the tooth bar 11 so as to force the edge 34 further into wedging engagement between the mounting surface 12 a and the edge surfaces 38 and retightening the nuts on the bolts.
- the present invention thus provides a mounting arrangement for a tooth bar such that the tooth bar 11 can be readily fitted onto the subassembly 10 and held firmly in place.
- the invention therefore lessens the likelihood of the tooth bar 11 working loose. Even though the forces to which the tooth bar will be subjected during normal use may still cause the tooth bar to loosen, the likelihood is less than with conventional mounting arrangements. If loosening does occur it is a matter of retightening in a simple and straightforward manner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Component Parts Of Construction Machinery (AREA)
- Shovels (AREA)
- Dental Prosthetics (AREA)
- Earth Drilling (AREA)
Abstract
Description
- This invention relates to material handling equipment such as excavators, backhoes, and clamping and grappling equipment, and the like. More particularly it relates to a mounting for a tooth bar on a thumb assembly for use with such equipment.
- The use of a thumb, with attached tooth bar, on excavator machinery is well known. Typically the thumb is used in conjunction with the excavator bucket so as to make the bucket more effective in picking up material. For example in demolition sites a thumb is a particularly useful means of grabbing material which would otherwise be difficult to be picked up solely by a bucket.
- The thumb is typically pivotally mounted to the excavator arm and is controllable, by an hydraulic ram. The thumb has a tooth bar attached to its distal outer end, this tooth bar generally being configured to suit the particular type of bucket with which it is to be used. For example, the tooth bar may have four or six teeth depending on the number of teeth mounted to the edge of the bucket.
- Because of the differing end user requirements it is often the case that the manufacturer of the thumb will manufacturer thumb assemblies particularly suited for the end application.
- Consequently there is always a lead time between an end user ordering a thumb and it actually being delivered from the manufacturer.
- Accordingly there is a need for a more modular system whereby the manufacturer can have a standard thumb sub-assembly and attach to this a suitable pre-manufactured tooth bar depending on the end users requirements.
- Typically the tooth bar may be welded to the thumb, but with a more modular system it is more practical to have bolt on tooth bars. Bolt on tooth bars are already known, however those that are known generally suffer from draw backs - the main one being that they tend to work loose as a consequence of the forces, and sometimes extreme treatment, which the thumb experiences during normal use.
- It is consequently an object of the present invention to provide a mounting for a tooth bar on a thumb which at least goes some way to overcoming the problem of loosening of the tooth bar during operation of the thumb, alternatively it is an object to at least provide the public with a useful choice.
- Broadly according to one aspect of the invention there is provided a mounting for a tooth bar to a mounting surface of a thumb sub-assembly, the mounting including one or more inwardly narrowing slots located adjacent the mounting surface and into which a part of the mounting portion of the tooth bar can be wedgingly engaged, there being means for fixing the tooth bar into engagement with the mounting surface following the mounting portion being wedgingly engaged.
- In the following more detailed description of a preferred embodiment of the invention reference will be made to the accompanying drawings in which:
-
FIG. 1 illustrates an exploded perspective view of the components of a thumb sub-assembly and associated tooth bar which is mountable to the sub-assembly by the mounting according to the present invention, -
FIG. 2 illustrates a perspective view of the thumb showing the tooth bar mounted to the thumb subassembly, -
FIG. 3 illustrates a side elevation view of the thumb when mounted to an excavator arm, and -
FIG. 4 illustrates a perspective view of the arrangement shown inFIG. 3 but with the thumb inter-engaging with the bucket as shown in dotted detail inFIG. 3 . - In the drawings
FIGS. 1 and 2 show a tooth bar of a “universal” type. By way of further illustration, however,FIGS. 3 and 4 show a tooth bar having four teeth configured to inter-engage with the five teeth on the cutting edge of the excavator bucket. Other configurations of tooth bar can be mounted to the thumb assembly using the mounting of the present invention. -
FIG. 1 shows the component parts of the thumb. This includes athumb subassembly 10 andtooth bar 11. Thesubassembly 10 has amounting plate 12 which forms amounting surface 12a against which aplate 13 of thetooth bar 11 can engage and be bolted thereto by a series of bolts and associatednuts 14. - The
subassembly 10 includes a pair ofside plates 15 which, in accordance with conventional construction, include along one edge thereof serrations orteeth 15. At the ends of theside plates 15 opposite to mountingplate 12 are a pair of alignedopenings 17. Bushes 18 are provided for theopenings 17. Through thebushes 18 is engaged apin 19 by which, together with selectedspacers 20, thesubassembly 10 can be typically attached to the excavator arm E. To one end of thepin 19 is attached a radial extendingplate 21 to which aretainer bar 22 is fitted. - Between the
side plates 15 is amounting plate 23 which, as more clearly shown inFIGS. 1 and 4 , carriesflanges 24 having openings therein which align with openings in theside plates 15 and through which athumb pin 25 can be engaged. This provides a mounting for thebush 26 of the piston rod ofhydraulic ram 27. The body of thehydraulic ram 27 has abush 28 which is engaged inbracket 29 viapin 30. - Attached to the
mounting plate 13 of thetooth bar 11 is theteeth assembly 31. This can include a plurality of teeth 32 (seeFIG. 4 ) or in the more universal fitting ofFIGS. 1 and 2 a toothed orserrated plate 33. - The upper edge of the
mounting plate 13 is preferably beveled as indicated bynumeral 34. Themounting plate 13 further includes a series, of openings which align withelongate openings 35 in themounting plate 12 of thesubassembly 10. Thebolts 14 pass through these aligned openings and with the associated nuts bolt themounting plates - The mounting according to the present invention includes a plurality of
flanges 36 which, in the illustrated form, are a pair of parallel spaced apart flanges mounted to themounting plate 23. Theseflanges 36 are, in the illustrated form of the construction, located either side of anopening 37 formed in themounting plate 23. - Each of the
mounting flanges 36 have afinger portion 37 which extends over the mounting surface of themounting plate 12. Thesefingers 37 include anedge surface 38 which faces towards themounting surface 12 a and is configured such that the distance between theedge 38 and themounting surface 12 a decreases inwardly from the distal ends offinger 37. The result is a narrowing slot into which thebeveled edge 34 can be engaged when themounting plate 13 is bought into engagement withmounting plate 12. There is thus a wedging action between theedge 38/mounting surface 12 a and themounting plate 13 of thetooth bar 11. - Accordingly when the
tooth bar 11 is mounted to thesubassembly 10 theedge 34 is introduced between theedge surfaces 38 of thefingers 37 and themounting surface 12 a. Thetooth bar 11 is then driven into hard engagement with thefingers 37 so that theedge 34 is firmly wedged into position. This is shown in more detail in the enlarged part view inFIG. 3 . Thebolts 14 are then introduced through the alignedopenings 35 and the openings in themounting plate 13 and the tooth bar thereby bolted onto thesubassembly 10. The elongate nature of theopenings 35 ensure that themounting plates edge 34 between thefingers 37 and mountingplate 12. - If, during use, the
tooth bar 11 loosens it is simply a matter of loosening off the nuts/bolts 14 followed by a driving force applied to thetooth bar 11 so as to force theedge 34 further into wedging engagement between themounting surface 12 a and theedge surfaces 38 and retightening the nuts on the bolts. - The present invention thus provides a mounting arrangement for a tooth bar such that the
tooth bar 11 can be readily fitted onto thesubassembly 10 and held firmly in place. The invention therefore lessens the likelihood of thetooth bar 11 working loose. Even though the forces to which the tooth bar will be subjected during normal use may still cause the tooth bar to loosen, the likelihood is less than with conventional mounting arrangements. If loosening does occur it is a matter of retightening in a simple and straightforward manner. - It will be appreciated by those skilled in the art that the present disclosure applies to an hydraulically controllable thumb. The invention is also applicable to a fixed/rigid thumb (i.e. one which is not hydraulically operable) where the clamping action with the fixed/rigid thumb is achieved by the crowd action of the bucket.
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ552295 | 2006-12-22 | ||
NZ552295A NZ552295A (en) | 2006-12-22 | 2006-12-22 | A tooth bar mounting |
PCT/NZ2007/000394 WO2008079033A1 (en) | 2006-12-22 | 2007-12-24 | A tooth bar mounting |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100058622A1 true US20100058622A1 (en) | 2010-03-11 |
Family
ID=39562727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/520,369 Abandoned US20100058622A1 (en) | 2006-12-22 | 2007-12-24 | Tooth bar mounting |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100058622A1 (en) |
EP (1) | EP2099974A1 (en) |
CN (1) | CN101636541A (en) |
AU (1) | AU2007338958B2 (en) |
CA (1) | CA2701082C (en) |
MX (1) | MX2009006763A (en) |
NZ (1) | NZ552295A (en) |
RU (1) | RU2009128214A (en) |
WO (1) | WO2008079033A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130042507A1 (en) * | 2011-08-15 | 2013-02-21 | Paladin Brands Group, Inc. | Dual-mode thumb for excavator |
US20140007467A1 (en) * | 2012-07-06 | 2014-01-09 | Caterpillar, Inc. | Thumb for an excavator machine with structure support |
US8695239B2 (en) | 2010-12-17 | 2014-04-15 | Paladin Brands Group, Inc. | Thumb with detachable body |
US20140230587A1 (en) * | 2013-02-20 | 2014-08-21 | Caterpillar Inc. | Thumb Assembly |
CN105256851A (en) * | 2015-11-05 | 2016-01-20 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic type thumb clamp mechanism and excavator work device |
US9353500B1 (en) * | 2012-10-26 | 2016-05-31 | Cold Stone Shorelines And Retaining Walls, Inc. | Excavator thumb having hardened removable teeth defining a platform beyond a wear and tear surface of thumb |
US9404236B2 (en) | 2014-10-09 | 2016-08-02 | Cascade Corporation | Thumb assembly having a stop |
US9476179B2 (en) * | 2014-12-18 | 2016-10-25 | Caterpillar Inc. | Excavator thumb toolbar coupling system |
US9932720B2 (en) | 2015-07-20 | 2018-04-03 | Robert W. Simpson | Excavator shearing implement |
US20180171577A1 (en) * | 2016-05-26 | 2018-06-21 | Bertha Manufacturing, LLC | Debris gripper and extractor for hydraulic equipment |
WO2023027848A1 (en) | 2021-08-26 | 2023-03-02 | Caterpillar Inc. | Yoke assembly for excavator thumb |
US20230067610A1 (en) * | 2021-08-26 | 2023-03-02 | Caterpillar Inc. | Excavator thumb with structural support |
USD983235S1 (en) | 2021-08-26 | 2023-04-11 | Caterpillar Inc. | Excavator thumb |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9777458B2 (en) | 2010-07-21 | 2017-10-03 | Volvo Compact Equipment Sas | Detachable thumb assembly and backhoe digging apparatus comprising the same |
JP2015078509A (en) * | 2013-10-16 | 2015-04-23 | 日立建機株式会社 | Bucket device |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4327509A (en) * | 1980-06-30 | 1982-05-04 | Bean Rufus C | Ripper tooth attachment for a back hoe |
US5472308A (en) * | 1994-04-26 | 1995-12-05 | Somero; Nick J. | Grapple mount |
US5544435A (en) * | 1994-09-27 | 1996-08-13 | Somero; Nick | Brush rake |
US5553408A (en) * | 1995-04-21 | 1996-09-10 | Townsend; Edward H. | Excavator bucket attachment |
US5678332A (en) * | 1996-06-24 | 1997-10-21 | Hawkins; Bobby Leonard | Changeable and retractable implement for use on a back hoe and method |
US5813822A (en) * | 1997-01-09 | 1998-09-29 | Pacific Services & Manufacturing | Bucket and thumb combination as a quick decoupling attachment |
US6120237A (en) * | 1998-08-25 | 2000-09-19 | Rockland Inc. | Attachment for groundworking and material handling machines and a strut assembly therefor |
US6434865B2 (en) * | 1998-12-08 | 2002-08-20 | Caterpillar Inc. | Base edge protection assembly for an implement of a work machine |
US6457268B1 (en) * | 2000-12-22 | 2002-10-01 | Caterpillar Inc | Edge protection assembly for an implement of a work machine |
US6655053B1 (en) * | 1998-08-25 | 2003-12-02 | Rockland, Inc. | Tool attachment for excavating machines and the like |
US6742291B2 (en) * | 2001-08-06 | 2004-06-01 | Denis Frigon | Thumb for scooping tool arm |
US7240441B2 (en) * | 2004-02-12 | 2007-07-10 | Mccoy Ted | Excavator thumb for use with excavator equipment |
US20070243054A1 (en) * | 2006-04-13 | 2007-10-18 | Seljestad Gregory A | Latch |
US7354239B2 (en) * | 2004-12-23 | 2008-04-08 | Clark Equipment Company | Attachment device for a loader bucket or fork |
-
2006
- 2006-12-22 NZ NZ552295A patent/NZ552295A/en active IP Right Revival
-
2007
- 2007-12-24 CA CA2701082A patent/CA2701082C/en active Active
- 2007-12-24 CN CN200780047441A patent/CN101636541A/en active Pending
- 2007-12-24 WO PCT/NZ2007/000394 patent/WO2008079033A1/en active Application Filing
- 2007-12-24 RU RU2009128214/03A patent/RU2009128214A/en not_active Application Discontinuation
- 2007-12-24 MX MX2009006763A patent/MX2009006763A/en active IP Right Grant
- 2007-12-24 AU AU2007338958A patent/AU2007338958B2/en active Active
- 2007-12-24 EP EP07866901A patent/EP2099974A1/en not_active Withdrawn
- 2007-12-24 US US12/520,369 patent/US20100058622A1/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4327509A (en) * | 1980-06-30 | 1982-05-04 | Bean Rufus C | Ripper tooth attachment for a back hoe |
US5472308A (en) * | 1994-04-26 | 1995-12-05 | Somero; Nick J. | Grapple mount |
US5544435A (en) * | 1994-09-27 | 1996-08-13 | Somero; Nick | Brush rake |
US5553408A (en) * | 1995-04-21 | 1996-09-10 | Townsend; Edward H. | Excavator bucket attachment |
US5678332A (en) * | 1996-06-24 | 1997-10-21 | Hawkins; Bobby Leonard | Changeable and retractable implement for use on a back hoe and method |
US5813822A (en) * | 1997-01-09 | 1998-09-29 | Pacific Services & Manufacturing | Bucket and thumb combination as a quick decoupling attachment |
US6120237A (en) * | 1998-08-25 | 2000-09-19 | Rockland Inc. | Attachment for groundworking and material handling machines and a strut assembly therefor |
US6655053B1 (en) * | 1998-08-25 | 2003-12-02 | Rockland, Inc. | Tool attachment for excavating machines and the like |
US6434865B2 (en) * | 1998-12-08 | 2002-08-20 | Caterpillar Inc. | Base edge protection assembly for an implement of a work machine |
US6457268B1 (en) * | 2000-12-22 | 2002-10-01 | Caterpillar Inc | Edge protection assembly for an implement of a work machine |
US6742291B2 (en) * | 2001-08-06 | 2004-06-01 | Denis Frigon | Thumb for scooping tool arm |
US7240441B2 (en) * | 2004-02-12 | 2007-07-10 | Mccoy Ted | Excavator thumb for use with excavator equipment |
US7354239B2 (en) * | 2004-12-23 | 2008-04-08 | Clark Equipment Company | Attachment device for a loader bucket or fork |
US20070243054A1 (en) * | 2006-04-13 | 2007-10-18 | Seljestad Gregory A | Latch |
US7753641B2 (en) * | 2006-04-13 | 2010-07-13 | Caterpillar Inc | Latch |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8695239B2 (en) | 2010-12-17 | 2014-04-15 | Paladin Brands Group, Inc. | Thumb with detachable body |
US9481978B2 (en) | 2010-12-17 | 2016-11-01 | Paladin Brands Group, Inc. | Thumb with detachable body |
US20130042507A1 (en) * | 2011-08-15 | 2013-02-21 | Paladin Brands Group, Inc. | Dual-mode thumb for excavator |
US9151012B2 (en) * | 2011-08-15 | 2015-10-06 | Paladin Brands Group, Inc. | Dual-mode thumb for excavator |
US20140007467A1 (en) * | 2012-07-06 | 2014-01-09 | Caterpillar, Inc. | Thumb for an excavator machine with structure support |
US9015968B2 (en) * | 2012-07-06 | 2015-04-28 | Caterpillar Inc. | Thumb for an excavator machine with structure support |
US9353500B1 (en) * | 2012-10-26 | 2016-05-31 | Cold Stone Shorelines And Retaining Walls, Inc. | Excavator thumb having hardened removable teeth defining a platform beyond a wear and tear surface of thumb |
US20140230587A1 (en) * | 2013-02-20 | 2014-08-21 | Caterpillar Inc. | Thumb Assembly |
US9404236B2 (en) | 2014-10-09 | 2016-08-02 | Cascade Corporation | Thumb assembly having a stop |
US9476179B2 (en) * | 2014-12-18 | 2016-10-25 | Caterpillar Inc. | Excavator thumb toolbar coupling system |
US9932720B2 (en) | 2015-07-20 | 2018-04-03 | Robert W. Simpson | Excavator shearing implement |
CN105256851A (en) * | 2015-11-05 | 2016-01-20 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic type thumb clamp mechanism and excavator work device |
US20180171577A1 (en) * | 2016-05-26 | 2018-06-21 | Bertha Manufacturing, LLC | Debris gripper and extractor for hydraulic equipment |
WO2023027848A1 (en) | 2021-08-26 | 2023-03-02 | Caterpillar Inc. | Yoke assembly for excavator thumb |
US20230067610A1 (en) * | 2021-08-26 | 2023-03-02 | Caterpillar Inc. | Excavator thumb with structural support |
USD983235S1 (en) | 2021-08-26 | 2023-04-11 | Caterpillar Inc. | Excavator thumb |
US11976436B2 (en) * | 2021-08-26 | 2024-05-07 | Caterpillar Inc. | Excavator thumb with structural support |
Also Published As
Publication number | Publication date |
---|---|
CN101636541A (en) | 2010-01-27 |
CA2701082A1 (en) | 2008-07-03 |
NZ552295A (en) | 2009-07-31 |
MX2009006763A (en) | 2009-10-26 |
WO2008079033A1 (en) | 2008-07-03 |
EP2099974A1 (en) | 2009-09-16 |
AU2007338958A1 (en) | 2008-07-03 |
RU2009128214A (en) | 2011-01-27 |
CA2701082C (en) | 2017-01-03 |
AU2007338958B2 (en) | 2015-01-22 |
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AS | Assignment |
Owner name: WEDGELOCK EQUIPMENT LIMITED,NEW ZEALAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CALVERT, MATTHEW JAMES;TEMPELAERE, AARON ANDRE;SIGNING DATES FROM 20090821 TO 20090923;REEL/FRAME:023483/0374 |
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AS | Assignment |
Owner name: ANZ BANKING GROUP (NEW ZEALAND) LIMITED,NEW ZEALAN Free format text: SECURITY AGREEMENT;ASSIGNOR:WEDGELOCK EQUIPMENT LIMITED;REEL/FRAME:023496/0656 Effective date: 19940406 Owner name: WEDGELOCK EQUIPMENT LIMITED,NEW ZEALAND Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:ANZ NATIONAL BANK LIMITED;REEL/FRAME:023496/0767 Effective date: 20091027 Owner name: WEDGELOCK LLC,MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEDGELOCK EQUIPMENT LIMITED;REEL/FRAME:023496/0851 Effective date: 20091028 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |