Material or article handling – Tilting vehicle-type handler
Patent
1993-11-23
1995-07-04
Hill, Mitchell J.
Material or article handling
Tilting vehicle-type handler
254 8R, 280 431, 280 4323, 280 4324, 280 47131, 2804181, 414490, B60P 104, B62B 106
Patent
active
054294720
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the invention
The present invention relates to a mechanism for lifting and/or hauling of a container.
2. Discussion of the Prior Art
Containers and similar loading bodies, including loading pallets, are increasingly used for transport and storage of various goods. This use is, however, of restricted value in locations having reduced accessibility for lifting and transporting units because it may be difficult to deliver and remove the container from such locations using the normal container removal vehicles.
SUMMARY OF THE INVENTION
It is an object of the present invention to overcome this difficulty and to permit the transportation and storage of a container even in locations where such transport and storage was not heretobefore convenient.
Thus, the invention aims at a mechanism for lifting and hauling of a container or the like, by means of which the container may be elevated above the ground and subsequently hauled onto e.g. a ramp or a tipping body of a lorry by means of a simple hauling mechanism and without the use of special lifting gear. Alternatively, the ramp or the tipping body may be moved in under the container body.
These and other objects of the invention are achieved by providing a lifting and hauling mechanism comprising a pivotable assembly of arms which are attached at spaced circumferential positions about a shaft and a locking arrangement for securing the shaft to the lower corners at one end of the container or the like.
Further features of the invention will be apparent from the following detailed description, reference being made to the accompanying drawing showing an embodiment by way of example.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a perspective view of the lifting and hauling mechanism of the invention and illustrates its attachment to a container.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 depicts the lifting and hauling mechanism according to the preferred embodiment comprising a pivotable system of arms 1, 2 which are attached to a shaft 3 and extend in radial directions with respect to an outer circumferential surface of shaft 3. Further, the mechanism is provided with locking elements 4 to rotatably attach the shaft 3 to the lower corners at one end of a container 5 or a similar loading body. The locking elements 4 may be of the type known for locking containers and the like to the decks of ships, etc.
The arm system comprises a first arm 1 located at midlength of the shaft 3 and intended to be connected to a winch of similar hauling mechanism by means of a wire or the like. Hereinafter, arm 1 shall be referred to as a "hauling arm". The arm system further comprises one or more arms 2, there being two such further arms 2 in the embodiment shown. These further arms 2 will, when the hauling arm 1 is rotated under the influence of the hauling mechanism, be pivoted to the ground, thereby lifting the container end from the ground through a levering action. These further arms 2 shall consequently be referred to as "levering arms".
The shaft 3 is pivotably connected to the locking elements 4 by means of pivot pins 7. In an alternative embodiment the shaft means may be in the form of a hollow shaft journalled on pivot pins extending from each locking element or on a rod extending from one locking element 4 to the other.
In the mounted non-active state of the mechanism of the invention, the hauling arm 1 extends substantially vertically upward while the levering arm(s) 2 extend forward and downward from the container 5. The length L of the hauling arm 1 is preferably greater than the length .lambda. of the levering arm(s) 2 in order to provide a required moment to lift the container from the ground. The mechanism of the invention is mounted on the container with such a height h of the center line of the shaft 3 above the underside of the container bottom and with respect to the levering arm length .lambda. that the levering arm 3 may cause a lifting of the container end a distance .lambda.- h sufficiently to allow t
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