FIELD OF THE INVENTION
[0001] The invention relates to a railway transport, to be more specific, to intermodal
pocket wagons and can be used for transporting freight semitrailers on the public
railway tracks, as well as for loading and unloading the freight semitrailers at the
specialized terminals.
BACKGROUND OF INVENATION
[0002] State of art gives an intermodal pocket wagon with a carrying platform and a console
joined with a connecting mechanism and equipped with two-axle bogies, with the console
equipped with a horizontal arched beam with retractable vertical supports and with
a possibility to pivot transversally against the chassis and to slide an adjacent
end of the carrying platform along the beam (see Patent
EP2419312, CI. B61D 3/04, published on 25.05.2016). The drawbacks of the disclosed device are
its large dimensions, a need for an extra fixing for an arched beam for transportation
purposes and inconvenience in use due to a narrow space between the carrying platform
and its console during the unloading process.
SUMMARY OF THE INVENTION
[0003] The main purpose of the invention is to provide a durable and easy to operate pocket
wagon with elongation of extension of the arched beam within the same compact dimensions.
[0004] This purpose has now been fulfilled by the invention which concerns the intermodal
pocket wagon with the carrying platform and the console connected with each other
with a connecting mechanism and equipped with two-axle bogies, and the console is
outfitted with the horizontal arched beam equipped with retractable vertical supports,
and the beam is outfitted to be extracted/retracted transversally against the console
and to move an adjacent end of the carrying platform along the beam, the arched beam
is mounted on the horizontal guide and consists of the central movable and side foldable
sections hinged to the central section and located along the chassis in a folded position.
The horizontal guide is preferably attached to the vertically sliding carriage mounted
on the console. All sections of the arched beam are preferably equipped with the gear
racks interacting with the gear wheels mounted on the carrying platform. The foldable
sections are preferably hinged to the central one. Folded sections of the arched beam
are preferably to be within the dimensions of the console. The end of the carrying
platform adjacent to the console is preferably equipped with independent retractable
vertical supports.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0005]
Fig. 1 is a general view of the proposed intermodal pocket wagon;
Fig. 2 is a folded position unit A from Fig. 1;
Fig. 3 is the same, unfolded position;
Fig. 4 is the same, a top view;
Fig. 5 is the same with an arched beam at the extreme position;
Fig. 6 is the same with a turned carrying platform;
Fig. 7 is the same with cargo;
Fig. 8 cargo stowage on intermodal pocket wagon in transportation mode.
DETAILED DESCRIPTION OF THE INVENTION
[0006] The disclosed intermodal pocket wagon consists of a carrying platform 1 and a console
2 joined with a connecting mechanism. The console 2 and the rearward end of platform
1 are equipped with two-axle bogies 3. One end of the carrying platform 1 is anchored
on the spherical support of its bogie 3, while the other end is attached to the console
2. Position locking mechanisms 4 for the platform 1 and the console 2 securely fasten
them in a stowed position of the unit.
[0007] A horizontal arched beam mounted on the console 2 consists of three sections: the
central movable section 5 and side foldable sections 6 located along the console 2
in a folded position. Sections 6 are hinged to the section 5 and are powered by the
electromechanical drives 7. The beam is mounted on a horizontal guide which is attached
to a carriage 8 mounted on the console 2 so as to move on the vertical guides 9. All
sections 5-6 are equipped with gear racks 10 interacting with gearwheels 11 with the
electromechanical drives and attached to the carrying platform 1. Sections 5-6 are
equipped with the screw jack supports 12. The arched beam is designed to be transversally
extracted against the console 2 and to move along the arched beam by the drive of
the adjacent end of the carrying platform 1. Folded sections 5-6 are within the dimensions
of the console 2.
[0008] The end of the carrying platform 1 adjacent to the console 2 is equipped with independent
screw jack supports 13. The platform 1 moves along the arched beam on the rollers
14. The cargo is fastened in a stowed position by a saddle 15.
[0009] The intermodal pocket wagon is loaded and unloaded as follows.
[0010] Foldable sections 6 are unfolded by the drives to a working position on the loading
site. Then, the arched beam is moved by gear rack 10 and gearwheels 11 along the horizontal
guide of the carriage 8 towards the semitrailer. Due to the screw jack supports 12,
the carriage 8 moves along the guides up to the construction elements of the console
2 and until arched beam touches the rollers 14 of the platform 1. The screw jack supports
12 are fixed against the ground, position locking mechanisms of the platform 1 are
disabled.
[0011] Then the platform 1 is moved by gear rack 10 and gearwheels 11 on the rollers 14
along the arched beam. The screw jack supports 13 lift the platform 1, the screw jack
supports 12 of the arched beam are lifted, the arched beam is shifted to the center.
The drives 7 of the foldable sections 6 fold them to the original position.
[0012] The screw jack supports 13 lower the end of the platform 1 on the ground. A terminal
tractor places the cargo - semitrailer on the platform 1.
[0013] The screw jack supports legs 13 lift the platform 1 with the cargo. The foldable
sections 6 are unfolded into a working position. Beam sections 5-6 are moved by gear
racks 10 and gearwheels 11 along the horizontal guide of the carriage 8. Beam screw
jack supports 12 are fixed against the ground, while the screw jack supports13 lower
the platform on the arched beam.
[0014] The platform 1 with the cargo is moved along the arched beam and fixed on the console
2 with the position locking mechanisms. All operating mechanisms are in a stowed position.
The cargo is fixed in the trailer hitch 15.
[0015] The disclosed construction for moving and turning the carrying platform of the proposed
intermodal pocket wagon allows to increase the elongation of extension of the arched
beam while maintaining the compact dimensions of the unit, is durable and improves
the operational features due to application of mechanical and electromechanical systems.
1. An intermodal pocket wagon with a carrying platform (1) and a console (2) connected
with each other with a connecting mechanism and equipped with two-axle bogies (3),
and the console is outfitted with a horizontal arched beam equipped with screw jack
supports (13), and the beam is outfitted to be moved transversally against the console
and to move an adjacent end of the carrying platform along the chassis, is characterized in that the arched beam is mounted on a horizontal guide and consists of a central movable
(5) section and side foldable sections (6) hinged to the central section and located
along the console (2) in a folded position.
2. The intermodal pocket wagon according to claim 1, wherein the horizontal guide is
attached to the vertically sliding carriage (8) mounted on the console.
3. The intermodal pocket wagon according to claim 1, wherein all sections of the arched
beam are equipped with gear racks (10) interacting with wheel gears (11) mounted on
the carrying platform (1).
4. The intermodal pocket wagon according to claim 1, wherein the foldable sections are
hinged to the central one.
5. The intermodal pocket wagon according to claim 1, wherein the folded sections of the
arched beam are within the dimensions of the console.
6. The intermodal pocket wagon according to claim 1, wherein the end of the carrying
platform adjacent to the console is equipped with independent screw jack supports.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description