ATE123743T1 - TELESCOPIC BOOM FOR VEHICLE CRANES OR THE LIKE. - Google Patents
TELESCOPIC BOOM FOR VEHICLE CRANES OR THE LIKE.Info
- Publication number
- ATE123743T1 ATE123743T1 AT92102268T AT92102268T ATE123743T1 AT E123743 T1 ATE123743 T1 AT E123743T1 AT 92102268 T AT92102268 T AT 92102268T AT 92102268 T AT92102268 T AT 92102268T AT E123743 T1 ATE123743 T1 AT E123743T1
- Authority
- AT
- Austria
- Prior art keywords
- sections
- section
- telescopic boom
- telescopic
- cranes
- Prior art date
Links
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
- B66C23/705—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
- 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
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A telescopic jib for cranes consists of an outer articulation piece which is pivotably mounted on the vehicle or its superstructure and in which several retractable and extendable telescopic sections are held. Each section is provided with bearing arrangements for the section guided in it and can be locked to this section. A hydraulic pressure-medium piston-cylinder unit is provided for the extension and retraction of the individual sections. In order to provide a telescopic jib which has considerable flexural rigidity in its individual sections and is simple and economical to manufacture, the articulation piece and the sections have round profiles.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9101533 | 1991-02-11 | ||
DE9102552U DE9102552U1 (en) | 1991-02-11 | 1991-03-04 | Telescopic boom for mobile cranes or similar |
DE9113981U DE9113981U1 (en) | 1991-11-11 | 1991-11-11 | Telescopic boom for mobile cranes or similar |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE123743T1 true ATE123743T1 (en) | 1995-06-15 |
Family
ID=27208262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT92102268T ATE123743T1 (en) | 1991-02-11 | 1992-02-11 | TELESCOPIC BOOM FOR VEHICLE CRANES OR THE LIKE. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0499208B2 (en) |
AT (1) | ATE123743T1 (en) |
DE (1) | DE59202474D1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4344795A1 (en) * | 1993-12-28 | 1995-06-29 | Liebherr Werk Ehingen | Mobile crane with a telescopic boom |
DE19624312C2 (en) * | 1996-06-18 | 2000-05-31 | Grove Us Llc | Telescopic boom for mobile cranes |
DE19711975B4 (en) * | 1997-03-12 | 2006-09-07 | Terex-Demag Gmbh & Co. Kg | Telescopic boom for mobile cranes |
DE19811813B4 (en) * | 1998-03-18 | 2005-11-24 | Grove U.S. LLC (n.d.Ges.d.Staates Delaware) | Lateral boom interlock |
US6499612B1 (en) | 2001-07-27 | 2002-12-31 | Link-Belt Construction Equipment Co., L.P., Lllp | Telescoping boom assembly with rounded profile sections and interchangeable wear pads |
DE20120121U1 (en) * | 2001-12-12 | 2002-03-07 | Grove Us Llc Shady Grove | Telescopic boom for a mobile crane |
JP2006021877A (en) * | 2004-07-08 | 2006-01-26 | Tadano Ltd | Telescopic boom |
DE102006014573B3 (en) * | 2006-03-29 | 2007-07-19 | Manitowoc Crane Group France SAS, | Telescopic crane jib part, has upper and lower profile parts with segments that are bent outwardly, and end segments adjoining each other at obtuse angle, where radius of segments is less than half width of cross-section |
JP2010089919A (en) | 2008-01-09 | 2010-04-22 | Kobelco Cranes Co Ltd | Telescopic boom |
US20180297825A1 (en) * | 2015-10-13 | 2018-10-18 | Tadano Ltd. | Operating machine boom |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1279493A (en) * | 1960-11-10 | 1961-12-22 | Advanced crane | |
DE1170134B (en) * | 1962-05-11 | 1964-05-14 | Focke Wulf Ges Mit Beschraenkt | Height-adjustable work platform |
US3250182A (en) * | 1963-08-01 | 1966-05-10 | Harold K Nansel | Multiple extension apparatus |
FR1415329A (en) * | 1964-12-01 | 1965-10-22 | Ver Flugtechnische Werke | Height-adjustable work platform |
DE2148966C3 (en) * | 1971-09-30 | 1978-11-23 | Liebherr-Werk Ehingen Gmbh, 7930 Ehingen | Telescopic boom, especially for road-traveling cranes |
US3842985A (en) * | 1972-12-15 | 1974-10-22 | Harnischfeger Corp | Means for extending and retracting crane boom section |
US4588347A (en) * | 1981-10-02 | 1986-05-13 | Coles Cranes Limited | Telescopic booms |
DE3216427A1 (en) * | 1982-05-03 | 1983-11-10 | Heinrich H. Klüssendorf GmbH & Co KG, 1000 Berlin | Device for guiding two rod- or/and tube-like elements movable axially one inside the other |
SE456820B (en) * | 1984-03-12 | 1988-11-07 | Oesa Ab | DEVICE ON TELESCOPE ARMS |
DE3510710A1 (en) * | 1985-03-23 | 1986-10-02 | Fried. Krupp Gmbh, 4300 Essen | TELESCOPIC CRANE |
US4688690A (en) * | 1986-03-07 | 1987-08-25 | Harnischfeger Corporation | Method and apparatus for extending fly section of crane boom |
DE9013210U1 (en) * | 1990-09-18 | 1991-01-03 | Liebherr-Werk Ehingen Gmbh, 7930 Ehingen | Telescoping system with reduced bending length of the telescoping cylinder |
-
1992
- 1992-02-11 AT AT92102268T patent/ATE123743T1/en not_active IP Right Cessation
- 1992-02-11 EP EP92102268A patent/EP0499208B2/en not_active Expired - Lifetime
- 1992-02-11 DE DE59202474T patent/DE59202474D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0499208A2 (en) | 1992-08-19 |
EP0499208B1 (en) | 1995-06-14 |
DE59202474D1 (en) | 1995-07-20 |
EP0499208B2 (en) | 2001-10-17 |
EP0499208A3 (en) | 1993-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |