EP1273550A1 - Engin portuaire du type portique pour déplacer les conteneurs de fret - Google Patents

Engin portuaire du type portique pour déplacer les conteneurs de fret Download PDF

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Publication number
EP1273550A1
EP1273550A1 EP02077582A EP02077582A EP1273550A1 EP 1273550 A1 EP1273550 A1 EP 1273550A1 EP 02077582 A EP02077582 A EP 02077582A EP 02077582 A EP02077582 A EP 02077582A EP 1273550 A1 EP1273550 A1 EP 1273550A1
Authority
EP
European Patent Office
Prior art keywords
portal
container
truck
height
bearing frame
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.)
Withdrawn
Application number
EP02077582A
Other languages
German (de)
English (en)
Inventor
Willem Frederik Prins
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.)
HTJ international BV
Original Assignee
HTJ international BV
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 HTJ international BV filed Critical HTJ international BV
Publication of EP1273550A1 publication Critical patent/EP1273550A1/fr
Withdrawn legal-status Critical Current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
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers

Definitions

  • the invention relates to a portal truck for moving freight containers, of the type comprising an undercarriage composed substantially of two parallel longitudinal runners and having running wheels; a portal structure rising from the longitudinal runners of this undercarriage, and a frame that can move up and down in the portal space of the portal structure, in order to pick up, lift and carry a container that is to be moved, and a driver's cab.
  • Such a portal truck often called a straddle carrier, is generally known and is used, inter alia, for transferring containers one by one from an unloading point on a quay to a collection or storage location.
  • the portal truck is also used at the last-mentioned location for stacking the containers there to, for example, a four-high position.
  • the portal truck With a view to this stacking function, it must be possible to lift the container-bearing frame over a height that is greater than the desired stacking height, and the portal therefore has a height that is a multiple of the width of the portal truck. Owing to this height-width ratio that is a disadvantage from the point of view of stability, the speed at which the known portal truck can "shuttle" between the two locations is limited. It is also a disadvantage with a view to the manoeuvrability of the known portal truck that the driver's cab is situated in a fixed position at a height above the container-bearing frame in its maximum raised position.
  • the object of the present invention is to at least partly overcome the above mentioned disadvantages, or to provide a useful alternative. More particularly the present invention aims to provide more effective, faster container transport between unloading point and storage location.
  • the invention provides a portal truck according to claim 1.
  • the driver's cab is connected directly or indirectly to the moveable container-bearing frame, and moves up and down together with this frame, for example when a container is lifted by it.
  • a driver is always in a good position to overview his surroundings during transport of a container, and is able to travel in a relatively low position when no container is carried by the frame.
  • the portal truck according to the invention may have a considerably reduced height, while the cab can be situated only at container height during travel. This means that the stability and manoeuvrability are considerably improved, and the portal truck can "shuttle" correspondingly faster.
  • the maximum height of lift of the container-bearing frame above ground level is just greater than twice the height of a container, wherein the portal structure is of a height that corresponds to that height. Owing to the fact that the maximum height of lift of the container-bearing frame has been reduced no further than to twice the height of a container, it is still possible to pick up any desired container at the unloading point from a row of containers standing in a "head-tail" arrangement, to lift them to above the adjacent containers in the row and to carry them away.
  • the portal structure is in fact composed of two single portals rising from the rear end and the front end of the undercarriage respectively, which portals are connected at the top by means of a platform on which a hoisting device is situated, by means of which hoisting device the container-bearing frame can be moved up and down.
  • the portal structure and the means for moving the container-bearing frame up and down could be designed in a corresponding manner in the case of the portal truck according to the invention.
  • a preferred embodiment of the portal truck according to the invention is, however, characterized in that the portal structure is formed by a single portal, the two columns of which are each disposed near the rear end of the truck on a longitudinal runner of the undercarriage, in which portal truck the means for moving the container-bearing frame up and down comprise two interacting lifting arms, which are each mounted with one end pivoting on a portal column and are rotatable from a substantially horizontal, forward-directed position just above container height to a slanting, upward-directed and forward-directed position, with the free ends of the arms just above twice the container height, and vice versa.
  • a practical embodiment according to the invention is one in which the auxiliary means comprise an auxiliary platform, which is suspended between the ends of the lifting arms in a manner that enables it to pivot about a horizontal transverse axis, and against the underside of which the container-bearing frame is retained, the driver's cab being fitted on the front part of the auxiliary platform.
  • a stabilizer rod extends upwards from the platform, the top end of which stabilizer rod is pivotally connected to the front end of an articulated rod extending forwards from the transverse part of the portal, all the above in such a way that the portal columns, the lifting arms, the stabilizer rod and the articulated rod form a parallelogram.
  • the portal truck shown in the drawing comprises first of all the undercarriage indicated by A, having on it a portal structure B.
  • the undercarriage A is formed substantially by two parallel longitudinal runners 1, each provided with a front, driven running wheel 2 with fixed axle, and a rear, non-driven, steerable running wheel 3.
  • the front running wheels 2 are each driven by a drive unit, formed by, for example, a diesel engine 4, which diesel engine is accommodated in a housing 5 suspended underneath the longitudinal runner in question.
  • Electric control motors 6 are present for steering the rear running wheels 3.
  • Wheel guards 7, hanging down from the longitudinal runners 1, are used both on the front side and on the rear side of the undercarriage.
  • the portal structure B in the example shown is formed by a single portal with columns 10 and a transverse part 11 connecting said columns, the columns 10 of which portal each extend upwards from the rear end of a longitudinal runner 1.
  • the longitudinal runners 1, the columns 10 and the transverse part 11 are made of a tubular section.
  • a frame (generally called a spreader) is indicated by C, which frame extends in the longitudinal direction through the space of the portal structure B and serves to pick up, for example, a container deposited on the ground by a harbour crane, to lift it a little and subsequently to transfer it by means of the portal truck to another location.
  • the container-bearing frame C is mounted in a manner that it is movable up and down.
  • the means for moving the container-bearing frame C up and down comprise first of all a pair of lifting arms 12 extending forwards from the portal B, which lifting arms are each mounted with one end on the inside of a portal column 10 in such a way that they can pivot about a horizontal axis, and the front ends of which are connected to each other by means of a transverse part 13.
  • Both the lifting arms 12 and the transverse part 13 connecting said lifting arms are made of a tubular section.
  • the transverse part 13 in this case acts as a bearing shaft for an auxiliary platform or bearing platform 14, which is suspended by means of lateral bearing supports 15 in a pivoting manner from the transverse part 13.
  • the auxiliary platform 14 is broadened towards one side (in Fig. 2 towards the left), the driver's cab, indicated by 16, being mounted on the broadened platform part.
  • the container-bearing frame C is also in turn supported by the auxiliary platform 14.
  • adjusting devices 17 and 18 are present, by means of which adjusting devices a container-bearing frame driven above a container to be picked up off the ground can be taken into the correct connecting position relative to the container.
  • the two lifting arms 12 are directed forwards horizontally.
  • one of the bearing supports 15 is extended upwards to a stabilizer element 15a, which is connected by its top end in a pivoting manner to a rod 19, which at the other end acts, in a manner pivoting about a horizontal axis, at 20, on the transverse part 11 of the portal B.
  • the columns 10, the lifting arms 15, the extended bearing support 15, 15a and the articulated rod 16 form a parallelogram in this case.
  • the bearing support 15 extended upwards consequently always remains parallel to the columns 10, and therefore vertical, and the platform 14 is held in the horizontal position.
  • the movement up and down of the lifting arms 12 is achieved by means of a hoisting drum 22 driven by an electric motor 21.
  • Said hoisting drum is mounted in a rotatable manner between two light supporting frames 23, each fitted on one side of the truck.
  • the supporting frames 23 are each composed of a tubular section 23a projecting forwards horizontally from a portal column 10, a tubular section 23b extending upwards from a longitudinal runner 1, and a connecting corner piece 23c.
  • the upright tubular sections 23b in this case run parallel to the cables 24 running from the hoisting drum 22 to the lifting arms 12 (see Fig. 4), so that they are subjected only to a compressive load.
  • the invention provides a portal truck which is save and efficient during use, and allows for a faster transport of containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP02077582A 2001-07-04 2002-06-28 Engin portuaire du type portique pour déplacer les conteneurs de fret Withdrawn EP1273550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1018455 2001-07-04
NL1018455A NL1018455C2 (nl) 2001-07-04 2001-07-04 Portaalwagen voor het verplaatsen van vrachtcontainers.

Publications (1)

Publication Number Publication Date
EP1273550A1 true EP1273550A1 (fr) 2003-01-08

Family

ID=19773664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02077582A Withdrawn EP1273550A1 (fr) 2001-07-04 2002-06-28 Engin portuaire du type portique pour déplacer les conteneurs de fret

Country Status (2)

Country Link
EP (1) EP1273550A1 (fr)
NL (1) NL1018455C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007010358A1 (fr) * 2005-07-20 2007-01-25 C.V.S. S.P.A. Appareil destine au transport d'une charge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387726A (en) * 1965-12-22 1968-06-11 Clark Equipment Co High lift straddle carrier
NL6700903A (fr) * 1967-01-20 1968-07-22
US3570695A (en) * 1969-01-21 1971-03-16 William H Schwartz Vehicle for carrying and stacking containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387726A (en) * 1965-12-22 1968-06-11 Clark Equipment Co High lift straddle carrier
NL6700903A (fr) * 1967-01-20 1968-07-22
US3570695A (en) * 1969-01-21 1971-03-16 William H Schwartz Vehicle for carrying and stacking containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007010358A1 (fr) * 2005-07-20 2007-01-25 C.V.S. S.P.A. Appareil destine au transport d'une charge

Also Published As

Publication number Publication date
NL1018455C2 (nl) 2003-01-08

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