Apparatus for transferring load units between two carriers

Material or article handling – Wheeled – load-transporting type vehicles and means for... – Means is confined to one of the vehicles

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Details

414401, B65G 6302

Patent

active

047831901

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to an apparatus for transferring load units between two carriers and more particularly to a bridging device.
2. Description of the Prior Art
Such an apparatus is described in U.S. Pat. No. 1,830,740. There a bridging device is described having two first support path portions which extend inside, parallel with and on substantially the same level as the two other support path portions. This requires cross bars that must be arranged between the support path portions in order to make them stable against movement in the horizontal plane. As a result, the power means for moving the transferring means from one carrier to the other cannot be disposed on a lower level than said support path portions without the disposition of these portions on a level lying high with respect to the bottom of the load carrier. From this it follows that the apparatus becomes very bulky and a great part of the vertical clearance otherwise being free for the load is lost.


SUMMARY OF THE INVENTION

The object of this invention is to overcome the disadvantages discussed above.
In accordance with the invention, this object is obtained by an apparatus for transferring load units between two carriers having at least one transferring device movable between the carriers, the transferring device being adapted to carry the load unit during the transfer, and a bridging device being movable in order to bridge the gap between the carriers. The bridging device forms a part of a support path device for supporting the transferring device during its movement and comprises support path portions, which, when the bridging device is moved into a bridging position, is located in overlapping relation, in the direction of movement of the transferring device, to further support path portions, which are arranged on the first carrier, while forming a path supporting the transferring device during substantially the entire movement from the first carrier to the second carrier. Thus, no cross bars are needed between the male members in order to attain stability against lateral movement of these members. An increased stability of the apparatus is also achieved in that the support path portions of the bridging device are composed of two parts, each of which is displaceably movable on an underlayer part on the first carrier. Power means for the transferring of the transferring device is positioned in the channel so established between the male members, without causing the apparatus to be unnecessary high. The simplicity of the apparatus according to the invention permits a very inexpensive construction.


BRIEF DESCRIPTION OF THE DRAWINGS

With reference to the appended drawings, below follows a specific description of an embodiment of the invention.
In the drawings:
FIG. 1 is a schematic perspective view illustrating the apparatus during load transfer,
FIG. 2 is an enlarged, partly sectioned view of one of the carriers in FIG. 1,
FIG. 3 is a cross sectional view along the line III--III in FIG. 2,
FIG. 4 is a cross sectional view along the line IV--IV in FIG. 2,
FIG. 5 is a cross sectional view along the line V--V in FIG. 2, and
FIG. 6 is an enlarged view of a detail in FIG. 2.


DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

In FIG. 1, two carriers are illustrated, one carrier 1 has the character of a load carrying superstructure on a vehicle for road transport, while another carrier 2 has the character of a load carrying superstructure on a rail way car. A transferring device 3 is moveable between the carriers 1 and 2 and adapted to carry a load unit 4 during the transfer. The transferring device 3 in this example is intended to normally be located on the road vehicle carrier 1 and is provided with lift devices, so that a load unit resting on carrier portions beside the transferring device 3 can be lifted up and in the elevated state transported over to the other carrier and is there lowered and supported by carrier portions beside the transferring device. Conventional locking device

REFERENCES:
patent: 1306158 (1919-06-01), Walker
patent: 1830740 (1931-11-01), Leech et al.
patent: 2004095 (1935-06-01), Hankins et al.
patent: 2512798 (1950-06-01), Hodges
patent: 2828027 (1958-03-01), Stevenson et al.
patent: 2926797 (1960-03-01), Decker
patent: 3357582 (1967-12-01), Wittek
patent: 3916799 (1975-11-01), Smith
patent: 4208160 (1980-06-01), Lovgren

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