EP2700752A4 - Boom for construction machine - Google Patents

Boom for construction machine

Info

Publication number: EP2700752A4
Authority: EP; European Patent Office
Prior art keywords: boom; construction machine; construction; machine
Prior art date: 2011-04-20
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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.)

2011-04-20

Filing date

2011-04-20

Publication date

2014-12-31

2011-04-20 Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd

2014-02-26 Publication of EP2700752A1 publication Critical patent/EP2700752A1/en

2014-12-31 Publication of EP2700752A4 publication Critical patent/EP2700752A4/en

Status Withdrawn legal-status Critical Current

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

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Mining & Mineral Resources (AREA)
Civil Engineering (AREA)
General Engineering & Computer Science (AREA)
Structural Engineering (AREA)
Butt Welding And Welding Of Specific Article (AREA)
Body Structure For Vehicles (AREA)

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
KR101943142B1 (en) *	2012-02-16	2019-04-17	히다찌 겐끼 가부시키가이샤	Construction machine arm
JP6232643B2 (en)	2014-06-05	2017-11-22	日立建機株式会社	Boom for construction machinery
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
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
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
DE102017121518A1 (en) *	2017-09-15	2019-03-21	Liebherr-France Sas	Excavator boom and excavator
DE102017121516A1 (en)	2017-09-15	2019-03-21	Liebherr-France Sas	Excavator boom and excavator
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
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
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	Boom, method for manufacturing boom, 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
US6019569A (en) *	1996-01-31	2000-02-01	Hitachi Construction Machinery Co., Ltd.	Excavation machine
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

2011
- 2011-04-20 US US13/994,821 patent/US20140056677A1/en not_active Abandoned
- 2011-04-20 CN CN201180069057.1A patent/CN103403263B/en not_active Expired - Fee Related
- 2011-04-20 WO PCT/JP2011/059748 patent/WO2012144037A1/en active Application Filing
- 2011-04-20 EP EP11863797.4A patent/EP2700752A4/en not_active Withdrawn
- 2011-04-20 JP JP2013510781A patent/JP5592994B2/en not_active Expired - Fee Related

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
JPWO2012144037A1 (en)	2014-07-28
EP2700752A1 (en)	2014-02-26
CN103403263B (en)	2015-06-10
US20140056677A1 (en)	2014-02-27
CN103403263A (en)	2013-11-20

Publication	Publication Date	Title
EP2700752A4 (en)	2014-12-31	Boom for construction machine
EP2746087A4 (en)	2015-03-18	Construction machine
EP2722446A4 (en)	2015-02-25	Construction machine
EP2716822A4 (en)	2015-04-22	Hydraulic machine
EP2735712A4 (en)	2015-05-06	Construction machine
EP2722502A4 (en)	2015-06-17	Construction machine
EP2679730A4 (en)	2018-04-04	Construction machine
EP2664715A4 (en)	2017-05-10	Construction machine
EP2708660A4 (en)	2015-04-22	Construction machine
EP2728075A4 (en)	2015-03-11	Working machine
EP2572948A4 (en)	2014-01-15	Construction machine
EP2711470A4 (en)	2015-07-29	Work machine
EP2725150A4 (en)	2015-06-10	Rotation-type construction machine
EP2735711A4 (en)	2015-04-29	Construction machine
EP2687637A4 (en)	2015-07-01	Construction machine
EP2682532A4 (en)	2015-04-22	Hybrid-type construction machine
HK1198196A1 (en)	2015-03-13	Excavating tool
EP2754756A4 (en)	2015-04-15	Construction machine
EP2674310A4 (en)	2017-08-30	Construction machine
EP2857695A4 (en)	2015-08-12	Boom drive device for construction machine
EP2784278A4 (en)	2015-07-22	Construction machine
EP2752524A4 (en)	2015-12-30	Construction machine
EP2743408A4 (en)	2015-04-08	Construction machine
EP2796624A4 (en)	2015-08-26	Work machine
EP2557237A4 (en)	2014-09-03	Construction machine

Legal Events

Date	Code	Title	Description
2014-01-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2014-02-26	17P	Request for examination filed	Effective date: 20131120
2014-02-26	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2014-07-30	DAX	Request for extension of the european patent (deleted)
2014-12-31	A4	Supplementary search report drawn up and despatched	Effective date: 20141203
2014-12-31	RIC1	Information provided on ipc code assigned before grant	Ipc: E02F 3/38 20060101AFI20141127BHEP Ipc: E02F 9/14 20060101ALN20141127BHEP Ipc: B66C 23/00 20060101ALN20141127BHEP
2016-06-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2016-07-27	18W	Application withdrawn	Effective date: 20160622