Traversing hoists – Having means to prevent or dampen load oscillations – Antisway
Patent
1995-04-21
1998-03-17
Brahan, Thomas J.
Traversing hoists
Having means to prevent or dampen load oscillations
Antisway
212319, 414392, B65C 1900
Patent
active
057277028
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase of PCT/EP94/02711 filed 13 Aug. 1994 and based, in turn, upon German applications P 43 29 470.7 of 1 Sep. 1993 and P 43 42 522.4 of 14 Dec. 1993 under the International Convention.
FIELD OF THE INVENTION
The invention relates to a transloading apparatus for containers such as freight containers, interchangeable containers and semi-trailers. More particularly the invention relates to an apparatus including a crane trolley adapted to travel on a crane or portal, to which, by way of a lifting means, a load receiving means is fitted in a manner for raising and lowering.
BACKGROUND OF THE INVENTION
Transcontainers serve as freight containers, for example for goods which have not been packaged or only lightly packaged and which may, in part, be moisture sensitive or for goods in the form of large loading units. Such transcontainers not only save packaging material, but they also increase the transloading speed.
According to the state of the art, gripping means for container transloading are known which are referred to as spreaders and which can be equipped with additional interchangeable pallet pincers. For picking up containers the spreaders have so-called twist locks by means of which the containers can be engaged from above. For picking up interchangeable containers and semi-trailers, gripping claws are provided which can grip into rebates provided on the underside of the containers. The adjustment of the twist locks to the various container lengths can be effected in the spreader by way of telescope means. After the twist locks have engaged into the load receiving points of the container or the claws have engaged in the rebates of the interchangeable containers or semi-trailers, these containers jointly with the entire lifting and transportation means are lifted by means of lifting ropes. The lifting ropes are passed over pulleys above on the lifting and transporting means, for example a portal crane. Bearing in mind the required for short transloading times the lifting and the horizontal movements frequently cause the transcontainer to be set into a pendulum motion, whereby an accurate guidance and setting down is impossible. In practice, damping of the pendulum movements is attempted by oblique pulling of the lifting ropes.
With particular regard to a fully automatic transloading of containers in combined load traffic, shortening of the crane travel distances, increasing the cycle times per transloading and shortening of the length of the installation, loading and unloading from and onto a travelling train has been proposed. An automatic setting down of the load units onto the train including aligning the grapple means with the containers and automatic release of the grapple means from the container is a precondition therefor.
OBJECT OF THE INVENTION
It is, therefore, an object of the invention to provide an improved transloading apparatus whereby the load receiving means can be accurately guided and aligned in relation to the transcontainer.
SUMMARY OF THE INVENTION
This object is achieved in accordance with the present invention by providing transloading apparatus wherein two horizontally displaceable columns or lifting structures are connected to the load receiving means side by side at a distance from one another which is fixed or can be adjusted in a defined manner and by providing that at least one of the two lifting structures can be displaced vertically.
The spacing of the columns or lifting structures is selected to be as far apart as possible and as far as possible above the load receiving points so as to provide the largest possible base for receiving and fixing the transcontainer even in the event of an off-center gravitational center of the load unit and so that tensile forces applied to the lifting structure or the lifting means can be maintained which are at least approximately of equal magnitudes.
The vertical displaceability of at least one of the two lifting structures, preferably both columns or lif
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patent: 4266904 (1981-05-01), Fadness
patent: 4662300 (1987-05-01), McCallum et al.
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Baumann Andreas
Kullmann Friedemann
Mende Burkhard
Brahan Thomas J.
Dubno Herbert
Krupp Fordertechnik GmbH
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