EP0384012A1 - Gantry crane - Google Patents
Gantry crane Download PDFInfo
- Publication number
- EP0384012A1 EP0384012A1 EP89121413A EP89121413A EP0384012A1 EP 0384012 A1 EP0384012 A1 EP 0384012A1 EP 89121413 A EP89121413 A EP 89121413A EP 89121413 A EP89121413 A EP 89121413A EP 0384012 A1 EP0384012 A1 EP 0384012A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bridge
- carrier
- loading
- support
- supports
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
Definitions
- the invention relates to a loading bridge with at least two bridge supports, possibly mounted on undercarriages, a tubular support which cooperates with the bridge supports and a device for loading and unloading goods.
- a crane girder with a closed girder profile is known, which is welded to both ends with an end plate.
- the carrier profile is formed by a U-profile which is open at the bottom and serves as an upper flange and by a shell which serves as a lower flange and has an approximately U-shaped cross section, the edges of which are welded to the flanges of the U-profile.
- the carrier profile can be formed by means of an H-profile serving as the upper chord and by means of a shell serving as the lower chord and U-shaped in cross section.
- This crane girder is designed as an indoor crane, with undercarriages being provided in the area of the end disks or the pipe sections, which are supported on corresponding carriageways. Larger spans cannot be bridged with such a device without carrying out further structural measures.
- the trolley which can be moved on the carrier on rails, can likewise only move between the carriageways, as a result of which the possible uses are limited. Furthermore, in this application, no further external forces, such as moments, torsion or the like, caused by the trolley occur in the carrier profile.
- a loading bridge is known with a bridge girder supported on bridge supports and a sliding girder slidably mounted with respect to this.
- the sliding beam is designed as a full-walled tube stiffened by transverse bulkheads and on its outer circumference by shells or box-shaped longitudinal straps, which in one as a full-walled tube Bridge support formed by longitudinal struts stiffened is mounted so as to be longitudinally displaceable by means of straight guides. Guide rollers are provided in the area of the support tube so that the displacement carrier can be displaced in its longitudinal direction.
- the bridge girder itself receives a conveyor belt for bulk material transport and is provided at one of its free ends with a loading device into which the conveyor belt feeds the bulk material.
- DE-PS 14 31 888 shows a crane bridge girder in a closed shell construction for internal trolleys.
- the crane bridge girder consists of an inner shell with an upper wall and two inner side walls, on which the rails for the trolley are mounted on both sides at the bottom inside and an outer shell adjoining the inner shell at the bottom, which at least in the upper part has the cross-sectional shape of an arc that opens downwards having.
- This constructive training is relatively large in terms of manufacturing and manufacturing costs, with at least the internal parts being relatively difficult to access when repair work occurs.
- the invention has for its object to develop a loading bridge described in the generic part of the first claim in such a way that a lightweight and therefore inexpensive construction is guaranteed. Furthermore, compared to the St.d.T. welding and straightening work is reduced to a minimum and the forces that occur are easily dissipated without causing damage to adjacent components.
- both the carrier and the bridge supports and one above the Carrier provided overvoltage are designed as a smooth-walled tubular construction with a substantially circular cross-section that the carrier is firmly connected to the bridge supports on the one hand and articulated on the other hand and that the device for loading and unloading is designed as a trolley which can be moved beneath the carrier.
- the St.d.T. a weight saving of approx. 35% can be achieved. Based on this weight saving, it is possible to make do with less or lighter chassis.
- considerable savings are made in production, since in contrast to the otherwise complex frame welded construction, purchased prefabricated tubes can be designed as A-supports.
- the main beam receiving the trolley is also designed as a stiff-less component (finished tube). The welding work is therefore reduced to the connection points of the bridge supports, the overvoltage and the connection areas with the beam.
- the suspended trolley is able to drive through both bridge supports, which means that better use of storage space can be ensured.
- Additional struts in the form of a truss disc are only provided for the fixed support in order to be able to better derive the forces from the beam.
- the joint is provided directly at the tip of the pendulum support, which means that almost only compressive and tensile forces are introduced into the rods. The mass forces resulting from the moving of the trolley and the effects of wind are introduced into the main support tube via the pendulum-shaped hanger and released as torsion into the fixed support (truss disc).
- the main beam is between the track, i.e. H. spanned between the undercarriages of the bridge supports and held on the cantilever arm with at least one pull rod, which can drastically reduce the moments that occur.
- the pull rod preferably engages about halfway up the cantilever arm, and when the trolley is moved in the area of the cantilever arm, good torque compensation is ensured in relation to the main beam.
- the travel rails for the trolley can be attached in different positions (levels) of the tube. This should be made dependent on the particular design of the trolley.
- FIGS. 1 to 4 show the loading bridge 1 according to the invention in different views or sections.
- Loading bridge 1 consists of the following components: a bridge support 2 designed as a pendulum support, a bridge support 3 designed as a fixed support, a support 4 extending between the bridge supports 2, 3, an overvoltage 5 arranged above the support 4.
- the bridge supports 2, 3, the support 4 and the overvoltage 5 are together and especially composed of smooth-walled tubes that are approximately circular in cross-section. This measure is intended on the one hand to save weight and on the other hand to reduce welding work can be achieved by using prefabricated components.
- the bridge supports 2, 3 are approximately triangular in cross section (FIGS. 2 and 3) and are provided with undercarriages 6.
- the carrier 4 has a cantilever arm 7 which extends over the pendulum support 2 in the direction of a ship 8 to be unloaded.
- a pull rod 9 is provided, which extends on the one hand to the pendulum support 2 and on the other hand to the tip 10 of the overvoltage 5.
- the carrier 4 itself is firmly connected to the tip 13 of the fixed support 3 via hangers 11, 12 and is displaced in the area of the pendulum support 2 via a joint 14 in the tip 15.
- a trolley 17 provided with a loading / unloading device 16 can be moved along rails 4, 19 running parallel to one another in the same horizontal plane, and both the pendulum support 2 and the fixed support 3 can be passed through as a result of the triangular design thereof.
- a truss disc 23 formed from struts 20, 21, 22 is provided in the area of the fixed support 3.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
Description
Die Erfindung betrifft eine Verladebrücke mit mindestens zwei, ggf. auf Fahrwerken gelagerten Brückenstützen, einem rohrförmig ausgebildeten mit den Brückenstützen zusammenwirkenden Träger sowie einer Einrichtung zum Be- und Entladen von Gütern.The invention relates to a loading bridge with at least two bridge supports, possibly mounted on undercarriages, a tubular support which cooperates with the bridge supports and a device for loading and unloading goods.
Durch die DE-OS 33 43 872 ist ein Kranträger mit einem geschlossenen Trägerprofil vorbekannt, das an beiden Ende mit je einer Endscheibe verschweißt ist. Das Trägerprofil wird durch ein als Obergurt dienendes nach unten offenes U-Profil und durch eine als Untergurt dienende, im Querschnitt etwa U-förmig gestaltete, Schale gebildet, deren Ränder mit den Flanschen des U-Profiles verschweißt sind. Alternativ besteht die Möglichkeit, das Trägerprofil durch ein als Obergurt dienendes H-Profil sowie durch eine als Untergurt dienende, im Querschnitt U-förmig gestaltete, Schale auszubilden. Ebenfalls möglich ist, das Trägerprofil durch einen Rohrabschnitt zu bilden, an dem zur Lasteinleitung in der Längsrichtung wenigstens zwei Laufbahnprofile angeschweißt sind. Dieser Kranträger ist als Hallenkran ausgebildet, wobei im Bereich der Endscheiben bzw. der Rohrabschnitte Fahrwerke vorgesehen sind, die sich auf entsprechenden Fahrbahnen abstützen. Größere Spannweiten sind mit einer solchen Einrichtung nicht überbrückbar, ohne weitere bauliche Maßnahmen durchzuführen. Die an dem Träger auf Fahrschienen verfahrbare Laufkatze kann ebenfalls nur zwischen den Fahrbahnen verfahren, wodurch die Einsatzmöglichkeiten begrenzt werden. Ferner treten bei diesem Anwendungsfall keine weiteren durch die Laufkatze hervorgerufenen äußeren Kräfte, wie Momente, Torsion oder dgl., im Trägerprofil auf.From DE-OS 33 43 872 a crane girder with a closed girder profile is known, which is welded to both ends with an end plate. The carrier profile is formed by a U-profile which is open at the bottom and serves as an upper flange and by a shell which serves as a lower flange and has an approximately U-shaped cross section, the edges of which are welded to the flanges of the U-profile. Alternatively, there is the possibility of forming the carrier profile by means of an H-profile serving as the upper chord and by means of a shell serving as the lower chord and U-shaped in cross section. It is also possible to form the carrier profile by means of a tube section, to which at least two raceway profiles are welded in the longitudinal direction in order to introduce the load. This crane girder is designed as an indoor crane, with undercarriages being provided in the area of the end disks or the pipe sections, which are supported on corresponding carriageways. Larger spans cannot be bridged with such a device without carrying out further structural measures. The trolley, which can be moved on the carrier on rails, can likewise only move between the carriageways, as a result of which the possible uses are limited. Furthermore, in this application, no further external forces, such as moments, torsion or the like, caused by the trolley occur in the carrier profile.
Durch die DE-PS 11 06 249 ist eine Verladebrücke mit einem auf Brückenstützen abgestützen Brückenträger und einem gegenüber diesem verschiebbar gelagerten Verschiebeträger bekannt. Der Verschiebeträger ist als vollwandiges, durch Querschotten und an seinem Außenumfang durch Schalen oder kastenförmige Längsgurte ausgesteiftes Rohr ausgebildet, das in einem als vollwandiges durch Längsgurte ausgesteiftes Tragrohr ausgebildeten Brückenträger mittels Geradführungen längsverschiebbar gelagert ist. Im Bereich des Tragrohres sind Führungsrollen vorgesehen, damit der Verschiebeträger in seiner Längsrichtung verschoben werden kann. Der Brückenträger selber nimmt ein Förderband zum Schüttguttransport auf und ist an einem seiner freien Enden mit einer Beladeeinrichtung versehen, in welche das Förderband das Schüttgut aufgibt. Durch diese konstruktive Lösung wird eine Art Nut-Federsystem gebildet, wobei es einerseits verhältnismäßig aufwendig ist, die entsprechenden Profile sowohl an dem Tragrohr als auch am Verschiebeträger herzustellen und andererseits notwendige Wartungsarbeiten an den Lagerstellen vorzunehmen.From DE-PS 11 06 249 a loading bridge is known with a bridge girder supported on bridge supports and a sliding girder slidably mounted with respect to this. The sliding beam is designed as a full-walled tube stiffened by transverse bulkheads and on its outer circumference by shells or box-shaped longitudinal straps, which in one as a full-walled tube Bridge support formed by longitudinal struts stiffened is mounted so as to be longitudinally displaceable by means of straight guides. Guide rollers are provided in the area of the support tube so that the displacement carrier can be displaced in its longitudinal direction. The bridge girder itself receives a conveyor belt for bulk material transport and is provided at one of its free ends with a loading device into which the conveyor belt feeds the bulk material. This constructive solution forms a kind of tongue and groove system, whereby on the one hand it is relatively complex to manufacture the corresponding profiles both on the support tube and on the sliding support and on the other hand to carry out the necessary maintenance work on the bearing points.
Ferner ist der DE-PS 14 31 888 ein Kranbrückenträger in geschlossener Schalenbauweise für innenlaufende Laufkatzen zu entnehmen. Der Kranbrückenträger besteht aus einer inneren Schale mit Oberwand und zwei inneren Seitenwänden, an denen beiderseits unten innen die Laufschienen für die Laufkatze gelagert sind sowie einer unten an die innere Schale anschließenden äußeren Schale, die wenigstens im oberen Teil die Querschnittsform eines sich nach unten öffnenden Kreisbogens aufweist. Diese konstruktive Ausbildung ist vom herstellungs- und fertigungstechnischen Aufwand verhältnismäßig groß, wobei zumindest die innenliegenden Teile bei auftretenden Reparaturarbeiten verhältnismäßig schwer zugänglich sind.Furthermore, DE-PS 14 31 888 shows a crane bridge girder in a closed shell construction for internal trolleys. The crane bridge girder consists of an inner shell with an upper wall and two inner side walls, on which the rails for the trolley are mounted on both sides at the bottom inside and an outer shell adjoining the inner shell at the bottom, which at least in the upper part has the cross-sectional shape of an arc that opens downwards having. This constructive training is relatively large in terms of manufacturing and manufacturing costs, with at least the internal parts being relatively difficult to access when repair work occurs.
Der Erfindung liegt die Aufgabe zugrunde, eine im gattungsbildenden Teil des ersten Anspruches beschriebene Verladebrücke dahingehend weiterzubilden, daß eine vom Gewicht her leicht bauende und somit preiswerte Konstruktion gewährleistet ist. Ferner sollen gegenüber dem St.d.T. die Schweiß- und Richtarbeiten auf ein Minimum reduziert und die auftretenden Kräfte problemlos abgeführt werden, ohne in angrenzenden Bauteilen zu Beschädigungen zu führen.The invention has for its object to develop a loading bridge described in the generic part of the first claim in such a way that a lightweight and therefore inexpensive construction is guaranteed. Furthermore, compared to the St.d.T. welding and straightening work is reduced to a minimum and the forces that occur are easily dissipated without causing damage to adjacent components.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß sowohl der Träger als auch die Brückenstützen sowie eine oberhalb des Trägers vorgesehene Überspannung als glattwandige Rohrkonstruktion mit im wesentlichen kreisförmigem Querschnitt ausgebildet sind, daß der Träger mit den Brückenstützen einerseits fest und andererseits gelenkig verbunden ist und daß die Einrichtung zum Be- und Entladen als unterhalb des Trägers verfahrbare Laufkatze ausgebildet ist.This object is achieved in that both the carrier and the bridge supports and one above the Carrier provided overvoltage are designed as a smooth-walled tubular construction with a substantially circular cross-section that the carrier is firmly connected to the bridge supports on the one hand and articulated on the other hand and that the device for loading and unloading is designed as a trolley which can be moved beneath the carrier.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.Advantageous further developments of the subject matter of the invention can be found in the subclaims.
Gegenüber dem St.d.T. werden folgende Vorteile erzielt:Opposite the St.d.T. the following advantages are achieved:
In Abhängigkeit von der Baugröße kann gegenüber dem St.d.T. eine Gewichtsersparnis von ca. 35 % herbeigeführt werden. Basierend auf dieser Gewichtsersparnis ist es möglich, mit weniger oder aber leichteren Fahrwerken auszukommen. Darüberhinaus werden erhebliche Ersparnisse in der Fertigung erzielt, da im Gegensatz zur sonst üblichen aufwendigen Rahmen-Schweißkonstruktion gekaufte Fertigrohre als A-Stützen ausgeführt werden können. Der die Laufkatze aufnehmende Hauptträger ist ebenfalls als steifenloses Bauteil (Fertigrohr) ausgebildet. Die Schweißarbeiten reduzieren sich somit ausschließlich auf die Verbindungsstellen der Brückenstützen, der Überspannung sowie den Verbindungsbereichen mit dem Träger.Depending on the size, the St.d.T. a weight saving of approx. 35% can be achieved. Based on this weight saving, it is possible to make do with less or lighter chassis. In addition, considerable savings are made in production, since in contrast to the otherwise complex frame welded construction, purchased prefabricated tubes can be designed as A-supports. The main beam receiving the trolley is also designed as a stiff-less component (finished tube). The welding work is therefore reduced to the connection points of the bridge supports, the overvoltage and the connection areas with the beam.
Die untergehängte Laufkatze ist aufgrund der gewählten dreieckförmigen bzw. A-förmigen Konstruktion der Brückenstützen in der Lage, beide Brückenstützen zu durchfahren, wodurch eine bessere Lagerplatzausnutzung gewährleistet werden kann. Lediglich bei der Feststütze sind zusätzliche Streben in Form einer Fachwerkscheibe vorgesehen, um die Kräfte aus dem Träger besser ableiten zu können. Das Gelenk ist unmittelbar an der Spitze der Pendelstütze vorgesehen, wodurch in die Stäbe fast nur Druck- und Zugkräfte eingeleitet werden. Die aus dem Verfahren der Laufkatze sowie Windeinflüssen resultierenden Massenkräfte werden über den pendelnd angeordneten Hänger in die Hauptträgerröhre eingeleitet und als Torsion in die Feststütze (Fachwerkscheibe) abgegeben.Due to the triangular or A-shaped construction of the bridge supports, the suspended trolley is able to drive through both bridge supports, which means that better use of storage space can be ensured. Additional struts in the form of a truss disc are only provided for the fixed support in order to be able to better derive the forces from the beam. The joint is provided directly at the tip of the pendulum support, which means that almost only compressive and tensile forces are introduced into the rods. The mass forces resulting from the moving of the trolley and the effects of wind are introduced into the main support tube via the pendulum-shaped hanger and released as torsion into the fixed support (truss disc).
Der Hauptträger ist zwischen der Spur, d. h. zwischen den Fahrwerken der Brückenstützen überspannt und am Kragarm mit mindestens einer Zugstange gehalten, wodurch die auftretenden Momente drastisch reduziert werden können. Die Zugstange greift vorzugsweise etwa auf halber Höhe des Kragarmes an, wobei beim Verfahren der Laufkatze im Bereich des Kragarmes ein guter Momentenausgleich bezogen auf den Hauptträger sichergestellt wird.The main beam is between the track, i.e. H. spanned between the undercarriages of the bridge supports and held on the cantilever arm with at least one pull rod, which can drastically reduce the moments that occur. The pull rod preferably engages about halfway up the cantilever arm, and when the trolley is moved in the area of the cantilever arm, good torque compensation is ensured in relation to the main beam.
Die Fahrschienen für das Katzfahrwerk können in verschiedenen Stellungen (Ebenen) der Röhre angebracht werden. Dies sollte von der jeweiligen Ausführung der Laufkatze abhängig gemacht werden.The travel rails for the trolley can be attached in different positions (levels) of the tube. This should be made dependent on the particular design of the trolley.
Die Erfindung ist anhand eines Ausführungsbeispieles in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:
- Figur 1 - Seitenansicht der erfindungsgemäßen Verladebrücke
- Figur 2 - Vorderansicht gemäß
Figur 1 - Figur 3 - Schnitt durch die
Figur 1 gemäß der Linie A-A - Figur 4 - Schnitt durch die
Figur 1 gemäß der Linie B-B
- Figure 1 - side view of the loading bridge according to the invention
- FIG. 2 - front view according to FIG. 1
- Figure 3 - section through Figure 1 along the line AA
- Figure 4 - Section through Figure 1 along the line BB
Die Figuren 1 bis 4 zeigen die erfindungsgemäße Verladebrücke 1 in verschiedenen Ansichten bzw. Schnitten. Die Verladebrücke 1 besteht aus folgenden Bauteilen:
einer als Pendelstütze ausgelegten Brückenstütze 2, einer als Feststütze ausgelegten Brückenstütze 3, einem sich zwischen den Brückenstützen 2,3 erstreckenden Träger 4, einer oberhalb des Trägers 4 angeordneten Überspannung 5. Die Brückenstützen 2,3, der Träger 4 sowie die Überspannung 5 sind samt und sonders aus glattwandigen, im Querschnitt etwa kreisförmigen Rohren zusammengesetzt. Durch diese Maßnahme soll einerseits eine Gewichtsersparnis und andererseits eine Verringerung der Schweißarbeiten durch Verwendung von vorgefertigten Bauteilen erzielt werden. Die Brückenstützen 2,3 sind im Querschnitt etwa dreieckförmig ausgebildet (Figuren 2 und 3) und sind mit Fahrwerken 6 versehen. Der Träger 4 weist einen Kragarm 7 auf, der sich über die Pendelstütze 2 in Richtung eines zu entladenden Schiffes 8 erstreckt. Zur Abstützung dieses Kragarmes 7 ist eine Zugstange 9 vorgesehen, die sich einerseits zur Pendelstütze 2 und andererseits zur Spitze 10 der Überspannung 5 erstreckt. Der Träger 4 selber ist über Hänger 11,12 mit der Spitze 13 der Feststütze 3 fest verbunden und im Bereich der Pendelstütze 2 über ein Gelenk 14 in der Spitze 15 verlagert. Eine mit einer Be-/Entladeeinrichtung 16 versehene Laufkatze 17 ist auf parallel in gleicher horizontaler Ebene verlaufenden Fahrschienen 18,19 entlang des Trägers 4 verfahrbar, wobei sowohl die Pendelstütze 2 als auch die Feststütze 3 infolge der dreieckförmigen Ausbildung derselben durchfahren werden können. Im Bereich der Feststütze 3 ist eine aus Streben 20,21,22 gebildete Fachwerkscheibe 23 vorgesehen.Figures 1 to 4 show the
a
Die aus dem Verfahren der Laufkatze 17 sowie Windeinflüssen resultierenden Massenkräfte werden über den Hänger 11 in den Träger 4 eingeleitet und als Torsion in die Feststütze 3 (Fachwerkscheibe 23) abgegeben.The mass forces resulting from the movement of the
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3903634A DE3903634C2 (en) | 1989-02-08 | 1989-02-08 | Loading bridge |
| DE3903634 | 1989-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0384012A1 true EP0384012A1 (en) | 1990-08-29 |
| EP0384012B1 EP0384012B1 (en) | 1993-08-11 |
Family
ID=6373596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89121413A Expired - Lifetime EP0384012B1 (en) | 1989-02-08 | 1989-11-18 | Gantry crane |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0384012B1 (en) |
| DE (2) | DE3903634C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329775A (en) * | 2015-11-18 | 2016-02-17 | 德马科起重机械有限公司 | Flexible weight-reducing main beam structure of crane |
| CN108726388A (en) * | 2018-06-05 | 2018-11-02 | 南华大学 | Deep-well solidification bucket takes crane system and its takes the method for hanging |
| CN119461012A (en) * | 2025-01-16 | 2025-02-18 | 贵州桥梁建设集团有限责任公司 | A hanger device based on concrete arch bridge demolition construction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19722540A1 (en) * | 1997-05-30 | 1998-12-03 | Estebanez Eva Garcia | Ship-to-shore transloading bridge for containers |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE915141C (en) * | 1941-12-04 | 1954-07-15 | Bauma Dr Ing Alexander Varren | Device for vertical holding of the pivotable bridge of a dismountable gantry crane supported by pivotable supports that can be contracted by winches while erecting |
| FR1173666A (en) * | 1957-04-26 | 1959-02-27 | Improvements to gantry cranes for handling loads in open terrain | |
| FR1266570A (en) * | 1960-06-01 | 1961-07-17 | Improvements to gantry cranes for lifting and handling loads | |
| FR1284310A (en) * | 1961-03-18 | 1962-02-09 | Anciens Etablissements Metallu | Portal bridge |
| FR1384261A (en) * | 1964-01-04 | 1965-01-04 | Demag Zug Gmbh | Gusset for the suspension of tracks for hoists and similar installations |
| DE1928364A1 (en) * | 1968-08-15 | 1970-04-09 | Wallace Prod Corp B E | Device for stabilizing a crane structure |
| DE2049505A1 (en) * | 1969-10-08 | 1971-04-15 | Wallace Prod Corp B E | Load-bearing trestle |
| FR2185578A1 (en) * | 1972-05-25 | 1974-01-04 | Madeleine Ateli Rs | |
| US4568232A (en) * | 1982-12-13 | 1986-02-04 | American Hoist & Derrick Company | Barge mounted horizontal boom bulk unloader |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT244540B (en) * | 1963-07-16 | 1966-01-10 | Karl Keienburg Hebezeug Und Kr | Katzbahn truss |
| DE3343872A1 (en) * | 1983-12-05 | 1985-06-20 | Erwin Mehne GmbH & Co, 7100 Heilbronn | Crane girder |
-
1989
- 1989-02-08 DE DE3903634A patent/DE3903634C2/en not_active Expired - Fee Related
- 1989-11-18 DE DE8989121413T patent/DE58905275D1/en not_active Expired - Fee Related
- 1989-11-18 EP EP89121413A patent/EP0384012B1/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE915141C (en) * | 1941-12-04 | 1954-07-15 | Bauma Dr Ing Alexander Varren | Device for vertical holding of the pivotable bridge of a dismountable gantry crane supported by pivotable supports that can be contracted by winches while erecting |
| FR1173666A (en) * | 1957-04-26 | 1959-02-27 | Improvements to gantry cranes for handling loads in open terrain | |
| FR1266570A (en) * | 1960-06-01 | 1961-07-17 | Improvements to gantry cranes for lifting and handling loads | |
| FR1284310A (en) * | 1961-03-18 | 1962-02-09 | Anciens Etablissements Metallu | Portal bridge |
| FR1384261A (en) * | 1964-01-04 | 1965-01-04 | Demag Zug Gmbh | Gusset for the suspension of tracks for hoists and similar installations |
| DE1928364A1 (en) * | 1968-08-15 | 1970-04-09 | Wallace Prod Corp B E | Device for stabilizing a crane structure |
| DE2049505A1 (en) * | 1969-10-08 | 1971-04-15 | Wallace Prod Corp B E | Load-bearing trestle |
| FR2185578A1 (en) * | 1972-05-25 | 1974-01-04 | Madeleine Ateli Rs | |
| US4568232A (en) * | 1982-12-13 | 1986-02-04 | American Hoist & Derrick Company | Barge mounted horizontal boom bulk unloader |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329775A (en) * | 2015-11-18 | 2016-02-17 | 德马科起重机械有限公司 | Flexible weight-reducing main beam structure of crane |
| CN105329775B (en) * | 2015-11-18 | 2017-02-01 | 德马科起重机械有限公司 | Flexible weight-reducing main beam structure of crane |
| CN108726388A (en) * | 2018-06-05 | 2018-11-02 | 南华大学 | Deep-well solidification bucket takes crane system and its takes the method for hanging |
| CN119461012A (en) * | 2025-01-16 | 2025-02-18 | 贵州桥梁建设集团有限责任公司 | A hanger device based on concrete arch bridge demolition construction |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3903634C2 (en) | 1994-01-05 |
| EP0384012B1 (en) | 1993-08-11 |
| DE3903634A1 (en) | 1990-08-16 |
| DE58905275D1 (en) | 1993-09-16 |
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