The invention relates to a transportable storage device,
comprising a loading bay for storing a flexible hose, for example a fire hose, in
a folded fashion, the loading bay having an opening at the back.
Such transportable storage devices, which are usually mounted
on a road vehicle are known. The known vehicles are employed for recovering a fire
hose after use. Hoses of this type are made up of a plurality of flexible hose sections
which are provided with rigid couplings at both ends. Such vehicle is provided with
an installation for taking up a flexible hose which has been laid out on the ground
into the loading bay.
The retraction installation takes up the hose from the
ground and transfers it into the loading bay where it is stored and folded in a
zigzag like manner along the length of the loading bay. The loading bay may accommodate
up to several kilometres of hose. The vehicle is driven along the fire hose at a
speed which essentially corresponds to the speed at which the fire hose is taken
up. The back of the loading bay has an opening for unloading the hose, the opening
being closeable by doors
A problem with the known transportable storage device is
the instability of the hose package in the loading bay. The hose is laid down in
the loading bay in a folded manner, the hose forming a hose package. The hose package
is spaced apart from the doors which close the opening at the back of the loading
bay, so as to prevent bulging out of the hose package when opening the doors, which
would impede closing of the doors. However, because of the space between the hose
package and the doors of the loading bay, the folded parts of the hose are prone
to shifting due to the movement of the loading bay during transport. In particular
upon unloading the loading bay from the vehicle, in which process the loading bay
is tilted backwards, the hose package may shift in such a way that it abuts the
door. Especially the folded parts of the hose that lie near the top of the hose
package are likely to shift because they are not fixated due to friction by the
weight of the hose package.
The aim of the invention is therefore to provide a transportable
storage device as described above which provides for a more steady fixation of the
hose package in the loading bay.
This aim is achieved in that the loading bay has an internal
narrowing towards the opening. This narrowing provides an abutment and provides
a compressing action on the hose package when it shifts towards the opening. An
inwardly compressing action on the folded parts of the hose is obtained at the narrowing.
The hose parts are pressed against each other and are thereby fixated due to friction.
Preferably, in this connection, the narrowing section of
the loading bay provides a gradual reduction of an internal cross-sectional dimension
of the loading bay. Moreover, this has the advantage that the rigid couplings at
the end of the hose sections will slide past the narrowing essentially unobstructed,
when removing the hose through the opening at the back of the loading bay.
The narrowing can be applied according to several possible
embodiments. According to a first possibility, the narrowing may extend over at
least part of the height of the loading bay. In particular, good results are obtained
in case the narrowing extends over the upper part of the loading bay only, that
is at a distance spaced apart from the floor of the loading bay.
Such location of the narrowing will also stabilize the
hose package, despite the reduces extent of said narrowing. The lower part of the
hose package is fixated anyway due to the load exerted thereon by the upper part
of the hose package and the fiction which is generated as a result thereof in said
lower part. However, the loosely packed upper part or middle part of the hose package
tends to shift away upon tilting of the loading bay, and at precisely those heights
the advantageous effect of the narrowing comes into play.
The narrowing may be positioned at different locations
along the length of the loading bay. Preferably, the narrowing is at or near the
opening of the loading bay. At that location, the narrowing provides an obstruction
which draws the loops in the hose package closer together and prevents them from
falling out through the opening. However, the beneficial effect of the narrowing
is also obtained in case said narrowing is somewhere in between the back end opening
and the front end of the loading bay.
Also at that location, the narrowing has the effect of
drawing the loops, in particular in the upper ones as explained before, closer together
so as to enhance the mutual friction therein as well as between the loops and the
walls of the loading bay. As an example, this effect is obtained in case the narrowing
is positioned somewhere in the middle between the front end and the back end of
the loading bay.
The gradual reduction in width is readily obtained by providing
a guiding element, such as a guide plate, on at least one of the sidewalls of the
loading bay, near the closeable opening thereof, which extends obliquely into the
loading bay. The guide plate may be supported by a strip which is adapted to the
corresponding wall of the loading bay for example by providing notches for accommodating
the various devices on said wall, like hinges, locks etc.
Preferably the loading bay is removably mounted on the
vehicle chassis, for example on a support which is tiltable, the loading bay being
slideable with respect to the support for loading/ unloading the loading bay on
the vehicle. Such a construction is well known in the art.
Especially when using a tiltable support for the loading
bay it is of importance to space apart the hose package from the doors. The hose
package has considerable weight, would it rest against the doors during tilting
of the loading bay, usually more than 35°, the doors could not be closed again
after they have been opened.
The retraction installation for taking up the hose is usually
mounted on the vehicle. Alternatively however, said installation may also be mounted
on the storing device.
The invention also relates to a loading bay as described
The invention will now be described referring to the accompanying
- Figure 1 shows, partially in cross section, a vehicle according to the invention.
- Figure 2 shows a top view of the loading bay according to the invention.
- Figure 3 shows a partial perspective view of the back of the loading bay.
The vehicle 1 according to the invention shown in figure
1 comprises a loading bay 2 for storing a flexible hose 3. The hose which has been
laid out on the ground 4 is taken up and transferred into the loading bay 2 by means
of retraction installation 5. The loading bay has a closeable opening 6 at the back
for unloading the hose.
The hose 3 is made up of a plurality of flexible hose sections
9 which are provided with rigid couplings 10 at both ends
The hose 3 is stored in a folded manner, forming a hose
package 7. As can be seen in figure 2, the hose package 7 is spaced apart from the
doors 8 at the back of the loading bay 2 to prevent the hose from bulging out when
opening the doors 8, and to prevent overloading the doors 8 when tilting the loading
bay 2 backwards upon unloading it from the vehicle 1.
The loading bay 2 comprises a container 11 which is removably
mounted on the vehicle 1. In this embodiment the container is slideable with respect
to a tiltable support 12. For unloading the container 11 from the vehicle, the support
12 is tilted backwards and the container is slid of the support.
Figure 2 shows the container 11 having a narrowing 13 towards
the back near the closeable opening 6. This narrowing provides an abutment and provides
an inwardly compressing action on the hose package 7 when it shifts towards opening
6, thereby pressing the folded parts of the hose against each other and holding
them due to friction.
The narrowing section 13 of the container 11 provides a
gradual reduction in width of the loading bay 2 so as to promote the compressing
action. In addition, this has the advantage that the rigid couplings 10 at the end
of the hose sections 9 will slide past the narrowing 13 essentially unobstructed,
when removing the hose 3 through the opening 6 at the back of the container 11.
The narrowing is obtained by guiding elements comprising
guide plates 14 provided on the side walls of the container 11, near the closeable
opening 6 thereof. The guide plates 14 extend obliquely into the loading space of
the container 11, and are supported by a strip 15. This strip is adapted to the
corresponding wall of the container by providing notches 16 for accommodating the
various devices on said wall, like the lock 17. Alternatively, the narrowing may
be carried out as a plastic insert, or may be integrated in the walls of the container
The guiding elements may extend over just the upper part
of the height of the container 11, thus acting on just the upper part of the hose
package 7, as the lower part of the hose package 7 will already be fixated due to
friction caused by the weight of the upper part of the hose package 7.
Although in the foregoing reference has been made to the
application of the transportable storage device on a lorry, the invention is not
limited to such application. For instance, the transportable storage device according
to the invention can also be accommodated on board a ship, or can be transported
by means of an aircraft, hoovercraft etc.