EP2700752A4 - Boom for construction machine - Google Patents

Boom for construction machine

Info

Publication number
EP2700752A4
EP2700752A4 EP11863797.4A EP11863797A EP2700752A4 EP 2700752 A4 EP2700752 A4 EP 2700752A4 EP 11863797 A EP11863797 A EP 11863797A EP 2700752 A4 EP2700752 A4 EP 2700752A4
Authority
EP
European Patent Office
Prior art keywords
boom
construction machine
construction
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11863797.4A
Other languages
German (de)
French (fr)
Other versions
EP2700752A1 (en
Inventor
Takeshi Takahashi
Atsushi Hamada
Takayuki Shimodaira
Hikaru Yamamoto
Makoto Sugaya
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Publication of EP2700752A1 publication Critical patent/EP2700752A1/en
Publication of EP2700752A4 publication Critical patent/EP2700752A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—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
EP11863797.4A 2011-04-20 2011-04-20 Boom for construction machine Withdrawn EP2700752A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/059748 WO2012144037A1 (en) 2011-04-20 2011-04-20 Boom for construction machine

Publications (2)

Publication Number Publication Date
EP2700752A1 EP2700752A1 (en) 2014-02-26
EP2700752A4 true EP2700752A4 (en) 2014-12-31

Family

ID=47041187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11863797.4A Withdrawn EP2700752A4 (en) 2011-04-20 2011-04-20 Boom for construction machine

Country Status (5)

Country Link
US (1) US20140056677A1 (en)
EP (1) EP2700752A4 (en)
JP (1) JP5592994B2 (en)
CN (1) CN103403263B (en)
WO (1) WO2012144037A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9200424B2 (en) * 2011-09-20 2015-12-01 Deere & Company Boom apparatus with sandwiched knuckle body
ITMI20120206A1 (en) * 2012-02-14 2013-08-15 Cifa Spa SEGMENT OF AN ARTICULATED ARM AND ARTICULATED ARM INCLUDING THE SEGMENT
US9187875B2 (en) * 2012-02-16 2015-11-17 Hitachi Construction Machinery Co., Ltd. Arm for construction machine
JP6232643B2 (en) * 2014-06-05 2017-11-22 日立建機株式会社 Boom for construction machinery
JP6305846B2 (en) * 2014-06-26 2018-04-04 株式会社神戸製鋼所 Attachment component, attachment of construction machine equipped with the same, and method of manufacturing attachment
JP6301754B2 (en) * 2014-06-26 2018-03-28 株式会社神戸製鋼所 Plate material, attachment for construction machine equipped with the same, and method for manufacturing attachment
JP2016089375A (en) * 2014-10-30 2016-05-23 日立建機株式会社 Construction machine boom
JP6721432B2 (en) * 2016-06-27 2020-07-15 株式会社小松製作所 Hydraulic excavator work machine and method of manufacturing hydraulic excavator work machine
US10072392B2 (en) * 2016-09-29 2018-09-11 Deere & Company Boom foot design with protruding flanges
JP6756567B2 (en) * 2016-09-30 2020-09-16 株式会社小松製作所 Box-shaped structure for work equipment
DE102017121516A1 (en) * 2017-09-15 2019-03-21 Liebherr-France Sas Excavator boom and excavator
DE102017121518A1 (en) * 2017-09-15 2019-03-21 Liebherr-France Sas Excavator boom and excavator
CN108678046A (en) * 2018-05-31 2018-10-19 马鞍山松鹤信息科技有限公司 A kind of excavator swing arm of stress concentration
CN108425388A (en) * 2018-05-31 2018-08-21 马鞍山松鹤信息科技有限公司 A kind of excavator swing arm
CN108547340A (en) * 2018-05-31 2018-09-18 马鞍山松鹤信息科技有限公司 A kind of high strength excavator swing arm
CN109537656A (en) * 2018-11-26 2019-03-29 中联重科股份有限公司 Swing arm, the manufacturing method of swing arm and excavator
US10450717B1 (en) * 2019-04-12 2019-10-22 Deere & Company Attachment assembly for a work vehicle with reinforcement members
CN111704051A (en) * 2020-06-08 2020-09-25 兴平西铁养路机械有限公司 Crane cantilever structure and assembling process thereof
CN112810732B (en) * 2021-02-07 2022-05-17 中联重科股份有限公司 Manufacturing method of upper box body of pump truck underframe
CN116100184B (en) * 2023-04-12 2023-08-01 苏州美达王钢铁制品有限公司 Split welding method for split movable arm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854456U (en) * 1981-10-09 1983-04-13 日立建機株式会社 Boom for hydraulic excavator
JP2001115477A (en) * 1999-10-21 2001-04-24 Shin Caterpillar Mitsubishi Ltd Working arm structure of working machine
WO2004053241A1 (en) * 2002-12-06 2004-06-24 Terex Germany Gmbh & Co. Kg Profile for fitting a digger with a hoe bucket or loading shovel and method for production thereof
WO2007090452A1 (en) * 2006-02-09 2007-08-16 Cnh Baumaschinen Gmbh Cantilever arm for a working machine
JP2010150775A (en) * 2008-12-24 2010-07-08 Sumitomo (Shi) Construction Machinery Co Ltd Attachment structure of construction machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1078286C (en) * 1996-01-31 2002-01-23 日立建机株式会社 Excavator
JP2005029984A (en) * 2003-07-08 2005-02-03 Hitachi Constr Mach Co Ltd Work arm for construction machine and its manufacturing method
JP4938637B2 (en) * 2007-12-21 2012-05-23 日立建機株式会社 Welded joints between flat plates and welded joints between box-type structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854456U (en) * 1981-10-09 1983-04-13 日立建機株式会社 Boom for hydraulic excavator
JP2001115477A (en) * 1999-10-21 2001-04-24 Shin Caterpillar Mitsubishi Ltd Working arm structure of working machine
WO2004053241A1 (en) * 2002-12-06 2004-06-24 Terex Germany Gmbh & Co. Kg Profile for fitting a digger with a hoe bucket or loading shovel and method for production thereof
WO2007090452A1 (en) * 2006-02-09 2007-08-16 Cnh Baumaschinen Gmbh Cantilever arm for a working machine
JP2010150775A (en) * 2008-12-24 2010-07-08 Sumitomo (Shi) Construction Machinery Co Ltd Attachment structure of construction machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012144037A1 *

Also Published As

Publication number Publication date
WO2012144037A1 (en) 2012-10-26
JP5592994B2 (en) 2014-09-17
EP2700752A1 (en) 2014-02-26
CN103403263B (en) 2015-06-10
JPWO2012144037A1 (en) 2014-07-28
US20140056677A1 (en) 2014-02-27
CN103403263A (en) 2013-11-20

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20131120

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DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20141203

RIC1 Information provided on ipc code assigned before grant

Ipc: E02F 3/38 20060101AFI20141127BHEP

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