[0001] The present patent application for industrial invention relates to a system for packaging
flexible hoses or cables wound in skeins.
[0002] As is well known the packaging of flexible hoses or skeins is accomplished thanks
to reels which allow to form skeins of cylindrical shape provided with a central hole.
[0003] Once such a skein has been formed, it is to be enveloped with a heat shrinking, extensible,
or similar sheath which encompasses and holds the outer turns of the flexible hose
(or of the cable) that forms the skein itself.
[0004] This traditional technology provides for packaging to be completed by the application
of a series of straps, arranged radially, which encompass the section of the skein
in three or four equidistant points and which are effectively able to keep compact
all turns of the skein itself.
[0005] This type of packaging is extremely reliable as long as all that is required is to
transport or store the aforesaid skeins.
[0006] Vice versa, it is not found quite as satisfactory when segments of hose or cable
need to be extracted and cut from one such skein.
[0007] In this event, it is inevitably necessary to cut the aforesaid series of straps;
this entails that the skein itself is then held only by the aforesaid peripheral sheath,
which alone cannot hold the outer turns of the skein.
[0008] All other turns, instead, we no longer held in any way and hence inevitably become
disarranged in a wholly uncontrolled manner with a series of easily imagined drawbacks,
which severely penalise any subsequent storage, transportation, and further uncoiling
operations.
[0009] The aim of the aforesaid invention is to realise a system for packaging skeins of
flexible hoses or cables which is able exactly to hold and contain all the turns of
the skein - not just the outer ones, but also those positioned progressively more
internally - until completely unwound.
[0010] In this way it is possible to prevent the aforesaid deleterious uncontrolled disarrangement
which, as noted above, constitutes a drawback felt deeply by the operators in the
industry.
[0011] For the sake of greater clarity, the description of the invention continues with
reference to the accompanying drawing plates, provided by way of non limiting illustration,
in which:
- Figure 1 is an axonometric view showing the skein complete with the subject sheath,
in the version wherein said container must not occlude the inlet of the central hole
of the skein itself;
- Figure 2 is similar to the previous one, but illustrates the case wherein the aforesaid
packaging container occludes the inlet of the central hole of the related skein.
[0012] With reference to said figures, the idea at the basis of the present invention has
been to wrap a skein of flexible hoses or cables (M) with an extensible ribbon (N)
which repeatedly envelopes the entire body of the skein itself, from one part to the
other, according to successive closed trajectories, each lying on the planes intersecting
the skein, whose orientation varies by a few degrees at each successive winding.
[0013] The application of the extensible ribbon according to the aforesaid procedures allows
the formation of a veritable cladding that completely and exactly coats the skein,
both in correspondence with the two opposite lateral faces, and in correspondence
with its peripheral shoulder; in particular the coating of each of the lateral faces
of the skein is a sort of dial comprising the aforesaid successive segments of extensible
ribbon.
[0014] It is interesting to note, in any case, that at the end of a similar coating operation
no turn of the skein is not contained within this sort of cladding or container.
[0015] The coating provided in correspondence with each of the lateral faces of the skein
could be effected in such a way as to occlude completely, partly, or not at all, the
inlet of the central hole obtained on the skein in question due to the presence of
the reel: that hole, that is to say, through which the extraction of the flexible
hose or of the cable must be conducted, when one or the other need to be used.
[0016] In the version in Figure 1 the windings of extensible ribbon (N) are numbered from
(1) to (9) and lie on planes tangential to an imaginary central hole having a diameter
roughly equal to that of the inlet (B) of the hole of the skein (M).
[0017] In the version in Figure 2, the windings of extensible ribbon (N) are numbered from
(1) to (6) and lie on diametral planes.
[0018] In the case wherein the inlet of this central hole of the skein has not been occluded
during the aforementioned coating operation - as shown in the aforesaid Figure 1 -
the operation of unwinding the skein can be said to be immediately executable; in
this hypothesis it can also be said that the dimensions of the central hole of the
container, obtained in correspondence with the hole of the skein, could be determined
at will, possibly as a function of the type of cable or hose wound in the skein itself.
[0019] On the other hand, in the case wherein the inlet of the central hole of the skein
has been completely occluded by means of the aforesaid packaging coating - as shown
in Figure 2 - it will be necessary first of all to realise on said coating a central
access opening, in correspondence with a single side of the skein, to place the central
hole of the skein itself in communication with the exterior and thereby start extracting
the flexible hose or the cable.
[0020] In particular this access opening may easily be obtained by widening some segments
of the extensible ribbon (N) that wraps the skein itself.
[0021] In any case the most important aspect to stress is that the aforesaid container realised
with the extensible ribbon is perfectly able to maintain - during the progressive
unwinding of the related skein - its compactness and optimal capability to contain
and hold all turns.
1. System for packaging flexible hoses or cables wound in skeins, characterised in that
it provides for each of said skeins to be wrapped entirely, from one part to the other,
with successive windings of extensible ribbon (N), each whereof lies on a plane intersecting
the skein itself offset by a few degrees with respect to the plane of the previous
winding.
2. System for packaging flexible hoses or cables wound in skeins, according to claim
1, characterised in that the aforesaid windings of extensible ribbon (N) lie on planes
tangential to an imaginary central hole whose diameter is approximately equal to that
of the inlet (B) of the hole of the skein (M).
3. System for packaging flexible hoses or wires wound in skeins, according to claim 1,
characterised in that the aforesaid windings of extensible ribbon (N) lie on diametral
planes.