US20090223093A1 - Support Arm for a Work Machine - Google Patents
Support Arm for a Work Machine Download PDFInfo
- Publication number
- US20090223093A1 US20090223093A1 US12/278,828 US27882808A US2009223093A1 US 20090223093 A1 US20090223093 A1 US 20090223093A1 US 27882808 A US27882808 A US 27882808A US 2009223093 A1 US2009223093 A1 US 2009223093A1
- Authority
- US
- United States
- Prior art keywords
- support arm
- plate
- cut
- shaped element
- shaped
- 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
- 238000003466 welding Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007747 plating Methods 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
- E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/301—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
-
- 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
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
Definitions
- the invention pertains to a support arm for a work machine, for example a jib or boom on the work equipment of a excavator, with at least one wall having at least one plate-shaped element.
- Work machines both movable machines such as excavators, wheel loaders, tractors, telescopic handlers, or other such machines as well as stationary machines such as cranes have support arms of different types that, individually or in combination, bear or move a work tool, a support, or other components and that connect these components to the work machine.
- These support arms of varying length and design are often connected via a hinge to the drives moving the arm and to the machine, the work tool, the support, or other components.
- the support arms generally consist of a box-shaped cross-section that is formed by walls, for example upper and lower flanges, as well as by side walls.
- the walls are usually a welded constructions built of homogeneous plates of different thicknesses, whereby their contour of the walls along their length are dimensioned appropriately for the stresses expected to be placed on the component.
- a welded cross-section for backhoe and loading shovel tools for an excavator is provided in DE 102 57 041 B3 in which the side walls, which have a uniform wall thickness, are equipped with upper and lower profile-reinforced end sections that form the corner sections of the upper and lower flanges located between the end sections.
- the end sections are formed by separate metal plates adapted to the particular contour of the tools that are connected by a weld to the corresponding side walls, which are thinner.
- the side walls connected to the profile-reinforced end sections are equipped with saddle rests for mounting the cylinder locating points.
- Such a cross-section is relatively complicated to manufacture due to the necessity of producing the additional profile-reinforced end sections.
- the task of the invention is to produce a support arm of the type described that follows the component stresses to be expected to a high degree, has the lowest possible intrinsic mass, and can be manufactured with a minimum of effort.
- This task is accomplished by the invention of a support arm of the type described at the beginning in that the at least one plate-shaped element, which is adapted to the component stresses to be expected, has at least one planar cut-out, whereby at least one cut-out is covered by a thin-walled cover element opposite the plate-shaped element.
- the at least one wall is made of a single-piece plate-shaped element, but in an additional design it is possible for the at least one wall to be comprised of several plate-shaped elements that are welded together. It is preferable for the at least one plate-shaped element to have a uniform wall thickness. To enable ideal adaptation to the component stresses to be expected, it is advantageous to design the corresponding plate-shaped element with several cut-outs. The cut-outs can be designed according to the load curve to be expected.
- a support arm with walls of the type described is suggested that is adapted to a high degree to the load curve expected for the component due to the cut-out(s) that can be designed accordingly.
- the cut-outs are correspondingly intended for those areas of the component where low stresses are expected. They can be manufactured without any problem and in any shape desired in the plate-shaped element. Due to the planar cut-outs, the intrinsic mass of the support arm is relatively low.
- the at least one cover element can be located on the outside or inside of the plate-shaped element, or located in the cut-out of the plate-shaped element itself.
- the support arm has a box-shaped cross-section with several walls, whereby at least one wall has a plate-shaped cross-section manufactured in the manner described.
- the support arm can be part of the work equipment of a work machine and serve to move and bear a work tool. On the other hand, support arm can also at least be used as a support or to carry other components.
- the support arm can be the jib or boom of an excavator, whereby the box-shaped cross-section of the support arm has an upper flange, a lower flange, and side walls, and in which at least one flange and/or at least one side wall has a plate-shaped element of the type described.
- the support arm can be located on the upper carriage or the lower carriage of the excavator.
- the upper and the lower flanges are located between the side walls of the support arm.
- this design is also advantageous to integrate saddle bearings for cylinders and linkages into the side walls.
- FIG. 1 A general arrangement drawing of a work machine in the form of an excavator
- FIG. 2 Perspective diagram of a support arm designed according to the invention
- FIG. 1 shows an example of a work machine in the form of a machine generally referred to as an excavator and labeled here with 1 .
- the following description of the design of a support arm according to the invention can be realized in general for any type of mobile or stationary work machine; excavator 1 shown in FIG. 1 is only an example of such a machine.
- Excavator 1 has one lower carriage 2 and one upper carriage 3 , and is equipped with a work tool in the form of a shovel 4 .
- This shovel 4 is connected by work equipment consisting of several support arms 5 to excavator 1 , and in particular to the upper carriage 3 of the same excavator.
- Other support arms can also be connected to the lower carriage 2 , of course, but this is not shown in detail in the drawing.
- the individual support arms 5 of the work equipment of the excavator are connected by pin supports 6 to each other and to the hydraulic cylinders 7 moving the arms as well as to the upper carriage 3 and the shovel 4 .
- the hydraulic cylinder 7 By adjusting the hydraulic cylinder 7 , the support arms 5 , and therefore the work tool such as shovel 4 shown in the example, can be brought to the desired working position.
- the essential item is now the design of the support arms 5 that are shown in FIGS. 2 to 5 .
- Each support arm 5 in this sample design consists of a box-shaped cross-section with one upper flange 8 , a lower flange 9 and two side walls 10 connected to the flanges 8 , 9 . These side walls 10 are dimensioned appropriately along the length of their outer contour to handle the expected component stresses.
- the particular side wall 10 consists of a single plate-shaped element 11 of uniform wall thickness, preferably a thick metal plate, that has several planar cut-outs 12 .
- These cut-outs 12 are designed differently in terms of their shape so that their shape is adapted to the component stresses to be expected.
- the corresponding side wall 10 is preferably made of a single-piece plate-shaped element 11 , but the side wall 10 can be divided into several pieces (with the same wall thickness) for handling reasons if the components are too long, but is not desirable due to adaptation to the component stresses.
- the support arm 5 shown in FIG. 2 is only one example; the shapes of the support arms 5 are naturally different depending on the actual function of the particular support arm (see also the different designs of the support arms 5 in FIG. 1 ). It is essential though that the walls are made of at least one plate-shaped element 11 with a uniform wall thickness and with at least one cut-out 12 , of which at least one cut-out is closed off by a thin-walled covering plate 14 ( FIG. 3 to 5 ) with an opposing plate-shaped element 11 . In contrast to the design shown in FIG. 2 , instead of the side walls 10 , the flanges 8 , 9 can also or only consists of plate-shaped elements 11 with at least one cut-out 12 and at least one thin-walled cover plate 14 . In general, it is also possible for only one side wall 10 or only one flange 8 , 9 to consist of at least one plate-shaped element 11 with at least one cut-out 12 and at least one thin-walled cover plate.
- cover element 14 preferably consists of a thin-walled plate opposite the plate-shaped element 11 , and its outer contour can match the contour of the corresponding cut-outs 12 and is preferably connected circumferentially around the edge of the cut-outs 12 , for example by welding. In doing so, the cover element 14 can be located and connected to the outside ( FIG. 3 ), inside ( FIG. 4 ), or even in the contour of the cut-out ( FIG. 5 ) on the plate-shaped element 11 .
- cover element 14 can be equipped with a cover element 14 , but at least one must be equipped with a cover element 14 .
- cover elements 14 made of thin-walled plating only contribute minimally to the load bearing capacity of the support arm 5 . They can be manufactured automatically, economically, and without complicated post-welding work by connected them to the plate-shaped element 11 using thin, closed welding seams.
- a support arm 5 according to the invention can not only be used as part of the working equipment of an excavator, but in general for any support arm of any type of work machine. These support arms can be connected to any part of the machine and can carry work tools as well as supports or other components even when these are not shown in the drawings. Additional designs according to the invention can also form support arms with walls with plate-shaped elements of the type described but without a box-shaped cross-section.
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)
- Body Structure For Vehicles (AREA)
- Jib Cranes (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006005892.5 | 2006-02-09 | ||
DE102006005892A DE102006005892A1 (de) | 2006-02-09 | 2006-02-09 | Tragarm für eine Arbeitsmaschine |
PCT/EP2006/012150 WO2007090452A1 (de) | 2006-02-09 | 2006-12-16 | Tragarm für eine arbeitsmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090223093A1 true US20090223093A1 (en) | 2009-09-10 |
Family
ID=37814186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/278,828 Abandoned US20090223093A1 (en) | 2006-02-09 | 2006-12-16 | Support Arm for a Work Machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090223093A1 (ja) |
EP (1) | EP1984574B1 (ja) |
JP (1) | JP5014354B2 (ja) |
DE (1) | DE102006005892A1 (ja) |
WO (1) | WO2007090452A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130071216A1 (en) * | 2011-09-20 | 2013-03-21 | Steven J. Ditzler | Exoskeleton Boom Structure |
US20130142607A1 (en) * | 2011-09-20 | 2013-06-06 | Steven J. Ditzler | Boom apparatus with sandwiched knuckle body |
US20150090850A1 (en) * | 2012-02-14 | 2015-04-02 | Cifa Spa | Segment of an articulated arm and articulated arm comprising said segment |
US9290363B2 (en) | 2011-07-21 | 2016-03-22 | Manitowoc Crane Companies, Llc | Tailor welded panel beam for construction machine and method of manufacturing |
US20170071140A1 (en) * | 2015-09-10 | 2017-03-16 | Komatsu Ltd. | Work vehicle |
WO2018011271A1 (de) * | 2016-07-12 | 2018-01-18 | Schwing Gmbh | GROßMANIPULATOR MIT GEWICHTSOPTIMIERTEM KNICKMAST |
US20200102194A1 (en) * | 2017-05-31 | 2020-04-02 | Joachim Mayer | Structural frame for a crane and similar machines, and crane comprising such a structural frame |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010003617U1 (de) * | 2009-06-19 | 2010-10-28 | Liebherr-Hydraulikbagger Gmbh | Baggerstiel |
JP5314625B2 (ja) * | 2010-03-08 | 2013-10-16 | 日立建機株式会社 | 建設機械用作業腕 |
EP2700752A4 (en) * | 2011-04-20 | 2014-12-31 | Hitachi Construction Machinery | BOOM FOR A CONSTRUCTION MACHINE |
CN102587669B (zh) * | 2012-03-21 | 2015-02-18 | 中联重科股份有限公司 | 一种臂架及泵车 |
GB2557934B (en) | 2016-12-16 | 2021-10-06 | Bamford Excavators Ltd | Arm assembly |
JP6917022B2 (ja) * | 2017-01-31 | 2021-08-11 | 株式会社タグチ工業 | 建設機械のアーム |
Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US790478A (en) * | 1905-01-28 | 1905-05-23 | Vulcan Iron Works Company | Boom for excavators. |
US1688664A (en) * | 1926-08-18 | 1928-10-23 | Commw Steel | Dipper handle |
US1974458A (en) * | 1932-10-19 | 1934-09-25 | Gen Steel Castings Corp | Dipper handle |
US2048561A (en) * | 1936-07-21 | Dipper handle fob dredges | ||
US2446410A (en) * | 1943-11-27 | 1948-08-03 | Kibbey W Couse | Combination pry-and-boom structure |
US3055459A (en) * | 1956-01-23 | 1962-09-25 | Los Altos Engineering Co | Lifting equipment |
US3283464A (en) * | 1960-05-10 | 1966-11-08 | Litzka Franz | Honeycomb girders and method for making same |
US3493133A (en) * | 1967-11-15 | 1970-02-03 | Hydraulic Machinery Co Inc | Dipstick assembly |
US3572528A (en) * | 1969-05-14 | 1971-03-30 | Int Harvester Co | Uniform stress cantilever beam |
US3722864A (en) * | 1971-12-13 | 1973-03-27 | Caterpillar Tractor Co | Composite structural member |
US3890757A (en) * | 1974-02-28 | 1975-06-24 | Case Co J I | Boom members having stiffener elements for crane boom constructions |
US3902295A (en) * | 1974-05-28 | 1975-09-02 | Caterpillar Tractor Co | Boom construction and method for making same |
US4003168A (en) * | 1975-06-27 | 1977-01-18 | Walter Kidde & Company, Inc. | Crane boom of trapezoidal boom sections having reinforcing rings |
US4016688A (en) * | 1975-05-27 | 1977-04-12 | Fmc Corporation | Extensible crane boom structure |
US4111320A (en) * | 1977-03-23 | 1978-09-05 | The Warner & Swasey Company | Material handling apparatus having means for connecting material handling tool with a boom |
US4147263A (en) * | 1977-01-06 | 1979-04-03 | Lull Engineering Company, Inc. | High lift loader with extended transfer |
US4337601A (en) * | 1980-04-24 | 1982-07-06 | Harnischfeger Corporation | High-strength light-weight boom section for telescopic crane boom |
US5176491A (en) * | 1991-06-18 | 1993-01-05 | Case Corporation | Overcenter backhoe apparatus |
US5595471A (en) * | 1994-11-28 | 1997-01-21 | Caterpillar Inc. | Linkage arrangement |
US6106217A (en) * | 1998-08-14 | 2000-08-22 | Caterpillar Inc. | Lift arm arrangement of a construction machine |
US6837446B1 (en) * | 2003-01-16 | 2005-01-04 | Sprayer Specialties, Inc. | Unitary boom structure |
US20060021264A1 (en) * | 2002-12-06 | 2006-02-02 | Terex Germany Gmbh & Co. Kg | Profile for fitting a digger with a hoe bucket or loading shovel and method for production thereof |
US20080187427A1 (en) * | 2000-08-17 | 2008-08-07 | Industrial Origami, Inc. | Load-bearing three-dimensional structure |
US20080292443A1 (en) * | 2004-07-15 | 2008-11-27 | Tetsuro Nose | Boom and Arm Member of Construction Machine Excellent in Weld Zone Fatigue Strength and Method of Improvement of Its Fatigue Strength |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3109137B2 (ja) * | 1991-06-26 | 2000-11-13 | 東レ株式会社 | 芳香族ポリエステル組成物 |
JPH06220884A (ja) * | 1993-01-21 | 1994-08-09 | Yanmar Diesel Engine Co Ltd | バックホーのブーム構造 |
JP3691750B2 (ja) * | 2000-11-13 | 2005-09-07 | 株式会社クボタ | 旋回作業機 |
-
2006
- 2006-02-09 DE DE102006005892A patent/DE102006005892A1/de not_active Withdrawn
- 2006-12-16 JP JP2008553630A patent/JP5014354B2/ja not_active Expired - Fee Related
- 2006-12-16 EP EP06829677.1A patent/EP1984574B1/de active Active
- 2006-12-16 WO PCT/EP2006/012150 patent/WO2007090452A1/de active Application Filing
- 2006-12-16 US US12/278,828 patent/US20090223093A1/en not_active Abandoned
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2048561A (en) * | 1936-07-21 | Dipper handle fob dredges | ||
US790478A (en) * | 1905-01-28 | 1905-05-23 | Vulcan Iron Works Company | Boom for excavators. |
US1688664A (en) * | 1926-08-18 | 1928-10-23 | Commw Steel | Dipper handle |
US1974458A (en) * | 1932-10-19 | 1934-09-25 | Gen Steel Castings Corp | Dipper handle |
US2446410A (en) * | 1943-11-27 | 1948-08-03 | Kibbey W Couse | Combination pry-and-boom structure |
US3055459A (en) * | 1956-01-23 | 1962-09-25 | Los Altos Engineering Co | Lifting equipment |
US3283464A (en) * | 1960-05-10 | 1966-11-08 | Litzka Franz | Honeycomb girders and method for making same |
US3493133A (en) * | 1967-11-15 | 1970-02-03 | Hydraulic Machinery Co Inc | Dipstick assembly |
US3572528A (en) * | 1969-05-14 | 1971-03-30 | Int Harvester Co | Uniform stress cantilever beam |
US3722864A (en) * | 1971-12-13 | 1973-03-27 | Caterpillar Tractor Co | Composite structural member |
US3890757A (en) * | 1974-02-28 | 1975-06-24 | Case Co J I | Boom members having stiffener elements for crane boom constructions |
US3902295A (en) * | 1974-05-28 | 1975-09-02 | Caterpillar Tractor Co | Boom construction and method for making same |
US4016688A (en) * | 1975-05-27 | 1977-04-12 | Fmc Corporation | Extensible crane boom structure |
US4003168A (en) * | 1975-06-27 | 1977-01-18 | Walter Kidde & Company, Inc. | Crane boom of trapezoidal boom sections having reinforcing rings |
US4147263A (en) * | 1977-01-06 | 1979-04-03 | Lull Engineering Company, Inc. | High lift loader with extended transfer |
US4111320A (en) * | 1977-03-23 | 1978-09-05 | The Warner & Swasey Company | Material handling apparatus having means for connecting material handling tool with a boom |
US4337601A (en) * | 1980-04-24 | 1982-07-06 | Harnischfeger Corporation | High-strength light-weight boom section for telescopic crane boom |
US5176491A (en) * | 1991-06-18 | 1993-01-05 | Case Corporation | Overcenter backhoe apparatus |
US5595471A (en) * | 1994-11-28 | 1997-01-21 | Caterpillar Inc. | Linkage arrangement |
US6106217A (en) * | 1998-08-14 | 2000-08-22 | Caterpillar Inc. | Lift arm arrangement of a construction machine |
US20080187427A1 (en) * | 2000-08-17 | 2008-08-07 | Industrial Origami, Inc. | Load-bearing three-dimensional structure |
US20060021264A1 (en) * | 2002-12-06 | 2006-02-02 | Terex Germany Gmbh & Co. Kg | Profile for fitting a digger with a hoe bucket or loading shovel and method for production thereof |
US6837446B1 (en) * | 2003-01-16 | 2005-01-04 | Sprayer Specialties, Inc. | Unitary boom structure |
US20080292443A1 (en) * | 2004-07-15 | 2008-11-27 | Tetsuro Nose | Boom and Arm Member of Construction Machine Excellent in Weld Zone Fatigue Strength and Method of Improvement of Its Fatigue Strength |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9290363B2 (en) | 2011-07-21 | 2016-03-22 | Manitowoc Crane Companies, Llc | Tailor welded panel beam for construction machine and method of manufacturing |
US20130142607A1 (en) * | 2011-09-20 | 2013-06-06 | Steven J. Ditzler | Boom apparatus with sandwiched knuckle body |
US9121163B2 (en) * | 2011-09-20 | 2015-09-01 | Deere & Company | Exoskeleton boom structure |
US9200424B2 (en) * | 2011-09-20 | 2015-12-01 | Deere & Company | Boom apparatus with sandwiched knuckle body |
US20130071216A1 (en) * | 2011-09-20 | 2013-03-21 | Steven J. Ditzler | Exoskeleton Boom Structure |
US9822535B2 (en) * | 2012-02-14 | 2017-11-21 | Cifa Spa | Segment of an articulated arm and articulated arm comprising said segment |
US20150090850A1 (en) * | 2012-02-14 | 2015-04-02 | Cifa Spa | Segment of an articulated arm and articulated arm comprising said segment |
US20170071140A1 (en) * | 2015-09-10 | 2017-03-16 | Komatsu Ltd. | Work vehicle |
US10362738B2 (en) * | 2015-09-10 | 2019-07-30 | Komatsu Ltd. | Work vehicle |
WO2018011271A1 (de) * | 2016-07-12 | 2018-01-18 | Schwing Gmbh | GROßMANIPULATOR MIT GEWICHTSOPTIMIERTEM KNICKMAST |
CN109477339A (zh) * | 2016-07-12 | 2019-03-15 | 德国施维英有限公司 | 具有重量优化的铰接桅杆的大型机械手 |
EP3485108B1 (de) | 2016-07-12 | 2020-05-27 | Schwing GmbH | Grossmanipulator mit gewichtsoptimiertem knickmast |
US20200102194A1 (en) * | 2017-05-31 | 2020-04-02 | Joachim Mayer | Structural frame for a crane and similar machines, and crane comprising such a structural frame |
Also Published As
Publication number | Publication date |
---|---|
JP2009526148A (ja) | 2009-07-16 |
EP1984574B1 (de) | 2016-03-23 |
JP5014354B2 (ja) | 2012-08-29 |
DE102006005892A1 (de) | 2007-08-23 |
WO2007090452A1 (de) | 2007-08-16 |
EP1984574A1 (de) | 2008-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20090223093A1 (en) | Support Arm for a Work Machine | |
KR100992974B1 (ko) | 카운터웨이트 | |
JP5592994B2 (ja) | 建設機械用ブーム | |
US10370817B2 (en) | Boom for construction machine | |
US9132870B2 (en) | Working machine | |
CN105297798B (zh) | 用于机器的联动组件的动臂 | |
US6158949A (en) | Boom assembly of a work machine | |
US8960778B2 (en) | Revolving frame of construction machine | |
US7681918B2 (en) | Frame for mounting a slew bearing | |
CN105297800A (zh) | 用于机器的机具系统的联动组件 | |
JP2005029984A (ja) | 建設機械用作業腕及びその製造方法 | |
CN107675741A (zh) | 用于机器的连杆组件 | |
US10378182B2 (en) | Excavator boom and excavator | |
CN205617456U (zh) | 用于支撑可移动吊臂组件的回转架组件及机械装置 | |
CN112093737A (zh) | 一种曲臂及曲臂式高空作业平台 | |
CN202672202U (zh) | 挖掘机用重型动臂 | |
CN105297799A (zh) | 用于机器的联动组件的斗杆 | |
JP2002242227A (ja) | 作業機械の作業腕構造 | |
US9334624B2 (en) | Articulated work machine | |
JP5014875B2 (ja) | 作業機ブーム | |
KR20180110079A (ko) | 작업기용의 상자형 구조체 | |
JP2012021336A (ja) | 建設機械のアーム及びその製作方法 | |
US20200392694A1 (en) | Excavator arm | |
CN220908497U (zh) | 一种多连杆可调式数控挖掘机构 | |
EP2233592B1 (en) | A taphole drill |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CNH AMERICA LLC, PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WILLAREDT, BERNHARD;CNH BAUMASCHINEN GMBH;LECHLER, GERALD;AND OTHERS;REEL/FRAME:023333/0836 Effective date: 20090216 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |