JP6834969B2 - 作業機械用ブーム - Google Patents
作業機械用ブーム Download PDFInfo
- Publication number
- JP6834969B2 JP6834969B2 JP2017545167A JP2017545167A JP6834969B2 JP 6834969 B2 JP6834969 B2 JP 6834969B2 JP 2017545167 A JP2017545167 A JP 2017545167A JP 2017545167 A JP2017545167 A JP 2017545167A JP 6834969 B2 JP6834969 B2 JP 6834969B2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- flat
- backing
- flat portion
- reinforcing member
- 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.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000005452 bending Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 239000003351 stiffener Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/122—Platforms; Forks; Other load supporting or gripping members longitudinally movable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Description
上板部及び前記上板部の幅方向両側から下方に延びる一対の上側平坦部を有する断面U状の上側部材と、下板部及び前記下板部の幅方向両側から上方に延びる一対の下側平坦部を有する断面U字状の下側部材とを、前記上側平坦部と前記下側平坦部を突き合わせた状態で溶接してなる筒状の複数のブーム部材が入れ子式に配置された作業機械用ブームであって、
前記上側部材と前記下側部材の溶接部位は、前記ブーム部材の先端側に下方向に負荷が作用した場合に、圧縮応力が生じる圧縮部と引張応力が生じる引張部との境界となる応力中立点よりも圧縮部側に位置し、
前記溶接部位の内面側に補強部材が配置されており、
前記補強部材は、前記ブーム部材の長さ方向に延在し前記溶接部位に当接する第1面を有する板状の裏当て部と、前記裏当て部の前記第1面とは反対側の第2面から内面側に突出する板状の補剛部と、を有することを特徴とする。
41 ブーム部材
41a 平坦部
41b 接合部、溶接部位
42 上側部材
42a 上板部
42b 上側平坦部
43 下側部材
43a 下板部
43b 下側平坦部
44 補強部材
44a 補剛部
44b 裏当て部
Claims (6)
- 上板部及び前記上板部の幅方向両側から下方に延びる一対の上側平坦部を有する断面U状の上側部材と、下板部及び前記下板部の幅方向両側から上方に延びる一対の下側平坦部を有する断面U字状の下側部材とを、前記上側平坦部と前記下側平坦部を突き合わせた状態で溶接してなる筒状の複数のブーム部材が入れ子式に配置された作業機械用ブームであって、
前記上側部材と前記下側部材の溶接部位は、前記ブーム部材の先端側に下方向に負荷が作用した場合に、圧縮応力が生じる圧縮部と引張応力が生じる引張部との境界となる応力中立点よりも圧縮部側に位置し、
前記溶接部位の内面側に補強部材が配置されており、
前記補強部材は、前記ブーム部材の長さ方向に延在し前記溶接部位に当接する第1面を有する板状の裏当て部と、前記裏当て部の前記第1面とは反対側の第2面から内面側に突出する板状の補剛部と、を有することを特徴とする作業機械用ブーム。 - 前記溶接部位は、前記上側平坦部の長さL1と下側平坦部の長さL2の比L1/L2が3〜4となる位置に配置されることを特徴とする請求項1に記載の作業機械用ブーム。
- 前記補強部材は、前記裏当て部の上下方向端部から前記補剛部が屈曲して延在する断面L字形状を有することを特徴とする請求項1又は2に記載の作業機械用ブーム。
- 前記裏当て部及び前記補剛部は、前記ブーム部材の全長にわたって設けられていることを特徴とする請求項1から3のいずれか一項に記載の作業機械用ブーム。
- 前記裏当て部は、前記ブーム部材の全長にわたって設けられ、
前記補剛部は、前記ブーム部材の長さ方向において局所的に設けられていることを特徴とする請求項1から3のいずれか一項に記載の作業機械用ブーム。 - 前記上側平坦部と前記下側平坦部は、内面が平坦となるように突き合わされ、
前記補強部材は、前記裏当て部が前記上側平坦部と前記下側平坦部を跨ぐように前記溶接部位の内面側に配置されていることを特徴とする請求項1から5のいずれか一項に記載の作業機械用ブーム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015202220 | 2015-10-13 | ||
JP2015202220 | 2015-10-13 | ||
PCT/JP2016/079582 WO2017065066A1 (ja) | 2015-10-13 | 2016-10-05 | 作業機械用ブーム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017065066A1 JPWO2017065066A1 (ja) | 2018-08-02 |
JP6834969B2 true JP6834969B2 (ja) | 2021-02-24 |
Family
ID=58518151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017545167A Active JP6834969B2 (ja) | 2015-10-13 | 2016-10-05 | 作業機械用ブーム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180297825A1 (ja) |
EP (1) | EP3363764B1 (ja) |
JP (1) | JP6834969B2 (ja) |
CN (1) | CN108137296B (ja) |
WO (1) | WO2017065066A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA170432S (fr) * | 2016-04-06 | 2017-11-23 | Manitou Bf | Chariot élévateur |
CN107814311A (zh) * | 2017-11-29 | 2018-03-20 | 安徽柳工起重机有限公司 | 起重机伸缩臂缸销中位检测装置 |
JP7379887B2 (ja) * | 2019-07-04 | 2023-11-15 | 株式会社タダノ | 作業車 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3789869A (en) * | 1972-01-24 | 1974-02-05 | Snorkel Fire Equipment Co | Fire-fighting apparatus and elongate cantilever boom assembly therefor |
ATE123743T1 (de) * | 1991-02-11 | 1995-06-15 | Liebherr Werk Ehingen | Teleskopausleger für fahrzeugkrane o.dgl. |
DE19711975B4 (de) * | 1997-03-12 | 2006-09-07 | Terex-Demag Gmbh & Co. Kg | Teleskopausleger für Fahrzeugkrane |
JP4265040B2 (ja) * | 1999-08-13 | 2009-05-20 | 株式会社加藤製作所 | 多段式ブーム |
US7165929B2 (en) * | 2001-12-20 | 2007-01-23 | Caterpillar Inc | Load bearing member arrangement and method |
JP2008087886A (ja) * | 2006-09-29 | 2008-04-17 | Kobelco Cranes Co Ltd | クレーンのブーム及びクレーンのブームの製造方法 |
CN201301181Y (zh) * | 2008-12-01 | 2009-09-02 | 三一汽车制造有限公司 | 一种伸缩式起重臂 |
JP5625309B2 (ja) * | 2009-10-13 | 2014-11-19 | コベルコクレーン株式会社 | ブーム |
JP2012206848A (ja) * | 2011-03-30 | 2012-10-25 | Tadano Ltd | ブームおよびその溶接方法 |
US9290363B2 (en) * | 2011-07-21 | 2016-03-22 | Manitowoc Crane Companies, Llc | Tailor welded panel beam for construction machine and method of manufacturing |
CN202643167U (zh) * | 2011-10-24 | 2013-01-02 | 韶关市起重机厂有限责任公司 | 随车起重机改良吊臂结构 |
CN203428808U (zh) * | 2013-08-21 | 2014-02-12 | 徐州重型机械有限公司 | 一种轮式起重机及其吊臂 |
DE202015002782U1 (de) * | 2015-04-16 | 2015-04-29 | Liebherr-Werk Ehingen Gmbh | Spitzenausleger sowie Kran |
-
2016
- 2016-10-05 JP JP2017545167A patent/JP6834969B2/ja active Active
- 2016-10-05 US US15/766,893 patent/US20180297825A1/en not_active Abandoned
- 2016-10-05 WO PCT/JP2016/079582 patent/WO2017065066A1/ja active Application Filing
- 2016-10-05 EP EP16855320.4A patent/EP3363764B1/en active Active
- 2016-10-05 CN CN201680057484.0A patent/CN108137296B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN108137296A (zh) | 2018-06-08 |
US20180297825A1 (en) | 2018-10-18 |
JPWO2017065066A1 (ja) | 2018-08-02 |
WO2017065066A1 (ja) | 2017-04-20 |
CN108137296B (zh) | 2019-09-24 |
EP3363764A4 (en) | 2019-07-10 |
EP3363764B1 (en) | 2020-12-09 |
EP3363764A1 (en) | 2018-08-22 |
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