EP0080002B1 - Fahrbarer Kran für die Handhabung von Containern - Google Patents

Fahrbarer Kran für die Handhabung von Containern Download PDF

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Publication number
EP0080002B1
EP0080002B1 EP81830235A EP81830235A EP0080002B1 EP 0080002 B1 EP0080002 B1 EP 0080002B1 EP 81830235 A EP81830235 A EP 81830235A EP 81830235 A EP81830235 A EP 81830235A EP 0080002 B1 EP0080002 B1 EP 0080002B1
Authority
EP
European Patent Office
Prior art keywords
spreader
jibs
crane
jib
container
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.)
Expired
Application number
EP81830235A
Other languages
English (en)
French (fr)
Other versions
EP0080002A1 (de
Inventor
Guido Testore
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.)
O R M I G SpA
Original Assignee
O R M I G SpA
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 O R M I G SpA filed Critical O R M I G SpA
Priority to AT81830235T priority Critical patent/ATE19043T1/de
Priority to EP81830235A priority patent/EP0080002B1/de
Priority to DE8181830235T priority patent/DE3174352D1/de
Publication of EP0080002A1 publication Critical patent/EP0080002A1/de
Application granted granted Critical
Publication of EP0080002B1 publication Critical patent/EP0080002B1/de
Expired legal-status Critical Current

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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
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable

Definitions

  • This invention relates to a yard crane for handling of containers.
  • US-A-3 958 702 relates to a mobile yard crane for handling containers and the like, said crane comprising at least two lifting jibs which are movable in vertical planes parallel and fixed with respect to each other, the free ends of said jibs having jib heads fitted with attaching devices designed to retain a container engaging apparatus (spreader) at least at two locations thereof, separate hydraulic cylinders connected to said jibs for moving the same in said vertical planes, and a hydraulic control circuit connected to said hydraulic cylinders.
  • this solution allows to limit only the container uncontrolled movements, as the container attaching devices comprise a flexible chain.
  • An object of this invention is to solve the problem to have a spreader which is able to be made rigid with the crane and simultaneously oriented in whichever direction to mate with a container.
  • a mobile yard crane for handling containers and the like, said crane comprising at least two lifting jibs which are movable in vertical planes parallel to and fixed with respect to each other, the free ends of said jibs having jib heads fitted with attaching devices designed to retain a container engaging apparatus (spreader) at least at two locations thereof, separate hydraulic cylinders connected to said jibs for moving the same in said vertical planes, and a hydraulic control circuit connected to said hydraulic cylinders, characterized in that each of said attaching devices comprises rigid and nonextendable articulated members; and in that said hydraulic control circuit is selectively connected to said hydraulic cylinders for operating said hydraulic cylinders in unison, thereby synchronously moving said jibs in said vertical planes, or for operating a selected one only of said hydraulic cylinders in the respective vertical plane, thereby inclining the plane of said spreader to engage an inclined container.
  • a self-propelled yard crane A in particular a crane truck which includes a frame 10 equipped, at the front thereof, with a driver's cab 12 which is able to be moved upwardly to the position 12', said frame 10 resting on the axles of front wheels 14 and of rear wheels 16, these latter wheels being the steering wheels.
  • a number of lifting jibs in the example shown two jibs B-C, are mounted on the frame 10 by means of associated structures which secure in a rotatively free way the crane jibs to said frame 10.
  • Each of these jibs B-C is mechanically independent from the other one but both jibs are connected to one another by way of suitable hydraulic circuit, not shown, which is able to ensure congruency and synchronism in the rotational, lifting, and lowering motions as performed by said jibs, which motions only take place along vertical planes that are fixedly parallel to one another.
  • each of the two jibs B-C is connected to the associated part of the frame 10 by means of a connecting plate 18 that is pivoted at 20 and 22 to the frame and to the jib, respectively.
  • the connecting plate and the jib are individually operated by two cylinders 24 and 24' which allow the load to be moved along any required path.
  • each lifting arm or crane jib is of a telescopic construction and is thus formed by a number of sections which are able to nest into one another.
  • the outermost section of each jib provides the head F and respectively G of the jib, which head is designed to manipulate a semitrailer or container H.
  • Each head F-G of the crane truck jibs is associated with a corresponding attaching device M-N, in such a manner that the two attaching devices, and thereby the two jib heads, will firmly retain an engaging apparatus or spreader P for a container H, said retaining action being preferably of a rigid type.
  • each attaching device M-N consists of a rod which is hinged to the related jib head F-G and is rigidly connected with the spreader P, each jib head comprising an associated attaching device for the spreader.
  • the spreader will have, at the top thereof, two respective attachment points for connection to the devices M-N, and at the bottom, as it is usually known, four points of attachment for the container H.
  • the spreader P is formed, in a known manner, of two parts, namely a lower part which is controllably movable, and an upper part that is fastened to the attaching devices M-N.
  • connection of the attaching devices M-N to the jib heads F-G is obtained by means of pivot pins 30 which are inserted and secured in place, in a direction perpendicular to the respective longitudinal center-lines X-X of the jibs B-C, within holes formed in the jib heads F-G, after passage of said pivot pins through associated holes in the rods of the attaching devices M-N.
  • the pivot pins 30 In all possible positions of jibs B-C, the pivot pins 30 always remain in an aligned relationship with one another.
  • the crane truck A will have its own jib heads fitted with said attaching devices M-N, the gripping regions of which, when duly actuated, will be caused to get engaged with corresponding zones of spreader P.
  • these zones are obviously in number of two and are in an aligned relationship with one another along the longitudinal axis of symmetry Y-Y of spreader P (fig. 4). Due to the shown securing conditions, the spreader P will only be free to perform, with respect to the jib heads F-G, a pivotal or oscillating motion in the direction of arrow Z (fig. 1 and 5) and in the opposite direction about the pivot pins 30, because the same attaching device M-N have this movement freedom. No other movement freedom in no other direction is possible for the spreader, due to the fastening constrain with the jib heads.
  • the load H when attached to the spreader P, will in turn have the same freedom of movement as the spreader has, so that said load, during manipulation, cannot take any hazardous position due to critical displacements, so that a good safety in handling operation is obtained.
  • the lower part of the spreader that is actuated by the operator, may perform in a known manner displacements in both the direction of the arrow T (fig. 4) and the opposite one, as well as in a direction perpendicular to that of arrow T, differential displacements in this latter direction allowing for the container to perform a controlled rotation of about 12° in either direction.
  • the provision of the two crane jibs B-C allows the user to "feel" a load unbalanced condition inside a handled container, because the load weight, in case of not homogeneously stowed load, will unbalancedly discharge on to the two crane jibs, and this feature is advantageous in handling unbalanced loads.
  • the on center distance 40 between the two jibs B-C is of 2.10 meters
  • the on center distance 42 between the front wheel 14 is of 2.59 meters
  • the overall width 44 is of 3.53 meters
  • the length 46 of the machine frame is 6.55 meters
  • the length 48 of each crane jib, with throughly nested-in head is of 8.03 meters.
  • the spreader is of a hydraulically adjustable type for hoisting from 20 to 40 feet (6.09 to 12.19 m) containers with possibility of adding attachments for 35 feet (10.67 m) containers.
  • FIG 4 the plan view thereof diagrammatically shows a yard and a number of containers arranged in two rows H1 and H2 that are spaced apart by a distance 50, which is to be in proportion to the overall dimension of the mobile crane and its motion possibilities.
  • Reference 52 designates the path as described by the apex 54 of a 20 feet container P1 and reference 56 designates the path as described by the apex 58 of a 40 feet container P2, these paths being given by way of examples only as results of rotational motions of crane A.
  • the jib head F has a : related attaching device M which retains, together with an identical device (not shown) carried by the other jib head G, the spreader P to which the container H is fastened.
  • the reference 100 designates suitable means that are effective for providing a complete stiffening of the attaching device M and, therefore, of both the spreader P and container H, in relation to the jib head F, thereby depriving said spreader of even any residual freedom of oscillation about the pivot pins 30 it might have in either the direction of the arrow Z or in the opposite direction.
  • Said means 100 could take the form of a hydraulic jack, the piston rod of which is pivotally secured at 102 to the related jib head, while the jack cylinder is secured, at 104, to the related spreader.
  • the hydraulic jack consequently increases and reduces the extension, but always maintains a rigid connection between the jib head and the spreader.
  • FIG 7 an alternative arrangement for fastening a spreader P is shown, said spreader being designed for engaging the load H, to three jib heads 200-202-204 which are fitted at the ends of related crane jibs, said jib heads including corresponding attaching devices 206-208-210 which are the same as the previously described device M-N.
  • the attachment of devices 206-208-210 is linear that is such that the three attachment points are arranged on a same line Y-Y, then it could be advantageous for at least one jib head to be equipped with the above described means 100.
  • the three attaching points not be aligned along a line Y-Y, then due to obvious geometrical conditions, the freedom of oscillation about the pivot pins 30 would be prevented and, thereby no stiffening would need to be added.
  • a hydraulic system for operating two corresponding cylinders 300-302 of said two crane jibs comprising a pump 304, a distributor 306 for delivering oil, for example, to the cylinder 302, the outlet 308 of which is connected with the inlet of cylinder 300, the free surface areas S of the cylinders being equal.
  • An electric valve 310 allows the two cylinders 300, 302 to be operated independently from one another when particular motions are required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Ship Loading And Unloading (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)

Claims (6)

1. Fahrbarer Kran für die Handhabung von Containern und dgl., der wenigstens zwei Ausleger (B, C), die in vertikalen parallel zueinander liegenden ortsfesten Ebenen beweglich sind wobei die freien Enden der Ausleger Auslegerköpfe (F, G) mit Befestigungsvorrichtungen (M, N) aufweisen, die derart ausgelegt sind, daß sie ein einen Container umgreifendes Gerät (Spreader P) wenigstens in zwei Positionen festhalten, getrennte hydraulische Zylinder (24, 24'), die mit den Auslegern zwecks deren Bewegung in den genannten vertikalen Ebenen verbunden sind, und einen an die hydraulischen Zylinder angeschlossenen hydraulischen Steuerkreislauf umfaßt, dadurch gekennzeichnet, daß jede der Befestigungsvorrichtungen (M, N) steife und nichtausziehbare Gelenkelemente umfaßt, und daß der hydraulische Steuerkreislauf wahlweise an die hydraulischen Zylinder (24, 24') angeschlossen ist, um die hydraulischen Zylinder gemeinsam zu betätigen, wobei die Ausleger (B, C) gleichlaufend in den genannten vertikalen Ebenen bewegt werden, oder um davon nur einen ausgewählten Zylinder in der entsprechenden vertikalen Ebene zu betätigen, wobei die Ebene des Spreaders (P) geneigt wird, um einen geneigten Container zu umgreifen.
2. Fahrbarer Kran nach Anspruch 1, dadurch gekennzeichnet, daß die Befestigungsvorrichtungen (M, N) für den Spreader gelenkig sind, so daß der Spreader (P) gegenüber den Auslegerköpfen (F, G) im allgemeinen in einer zu den genannten vertikalen Ebenen parallelen Ebene schwenkbar ist, und daß Versteifungsmittel (100) mit jeder Befestigungsvorrichtung und dem zugehörigen Auslegerkopf zum Abdämpfen der Schwenkung des Spreader (P) zusammenarbeiten.
3. Fahrbarer Kran nach Anspruch 2, dadurch gekennzeichnet, daß jedes der Versteifungsmittel aus einer hydraulischen Winde (100) besteht, die mit dem zugehörigen Auslegerkopf (F) und dem Spreader (P) (in 102, 104) verbunden ist.
EP81830235A 1981-11-23 1981-11-23 Fahrbarer Kran für die Handhabung von Containern Expired EP0080002B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT81830235T ATE19043T1 (de) 1981-11-23 1981-11-23 Fahrbarer kran fuer die handhabung von containern.
EP81830235A EP0080002B1 (de) 1981-11-23 1981-11-23 Fahrbarer Kran für die Handhabung von Containern
DE8181830235T DE3174352D1 (en) 1981-11-23 1981-11-23 Mobile yard crane for the handling of containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81830235A EP0080002B1 (de) 1981-11-23 1981-11-23 Fahrbarer Kran für die Handhabung von Containern

Publications (2)

Publication Number Publication Date
EP0080002A1 EP0080002A1 (de) 1983-06-01
EP0080002B1 true EP0080002B1 (de) 1986-04-09

Family

ID=8188721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81830235A Expired EP0080002B1 (de) 1981-11-23 1981-11-23 Fahrbarer Kran für die Handhabung von Containern

Country Status (3)

Country Link
EP (1) EP0080002B1 (de)
AT (1) ATE19043T1 (de)
DE (1) DE3174352D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200013003A1 (it) * 2022-06-20 2023-12-20 Manzi Consulenze S R L S Apparecchiatura per la movimentazione di un carico

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19603966A1 (de) * 1996-01-26 1997-07-31 Kirow Leipzig Rail & Port Ag M Mobilkran

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547537A (en) * 1940-09-20 1942-09-01 Dempster Brothers Inc Transporting and dumping devices
FR1356379A (fr) * 1963-02-13 1964-03-27 Bennes Marrel Perfectionnements aux dispositifs de grues mobiles destinés à équiper des camions et autres véhicules analogues
US3685673A (en) * 1970-05-28 1972-08-22 Crutcher Resources Side-loading self-propelled material transporting device
US3780877A (en) * 1971-12-30 1973-12-25 Flexi G Van Corp Freight container transfer mechanism
FR2181565B1 (de) * 1972-04-28 1975-03-21 Haulotte Georges
US3958702A (en) * 1975-01-02 1976-05-25 Steadman Containers Limited Mobile load handling apparatus
GB1522666A (en) * 1975-09-20 1978-08-23 Klaus K Load carrying vehicles
FR2393757A1 (fr) * 1977-06-06 1979-01-05 Ppm Sa Dispositif de manutention de conteneurs
IT1102219B (it) * 1978-02-02 1985-10-07 Comensoli Cormach Apparecchiatura di sollevamento a due bracci

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200013003A1 (it) * 2022-06-20 2023-12-20 Manzi Consulenze S R L S Apparecchiatura per la movimentazione di un carico
WO2023248112A3 (en) * 2022-06-20 2024-02-08 Manzi Consulenze S.R.L.S. Equipment for handling a load

Also Published As

Publication number Publication date
EP0080002A1 (de) 1983-06-01
ATE19043T1 (de) 1986-04-15
DE3174352D1 (en) 1986-05-15

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