NZ716897B - A protective device of a dispenser supply hose and related fluid feeding system - Google Patents
A protective device of a dispenser supply hose and related fluid feeding systemInfo
- Publication number
- NZ716897B NZ716897B NZ716897A NZ71689716A NZ716897B NZ 716897 B NZ716897 B NZ 716897B NZ 716897 A NZ716897 A NZ 716897A NZ 71689716 A NZ71689716 A NZ 71689716A NZ 716897 B NZ716897 B NZ 716897B
- Authority
- NZ
- New Zealand
- Prior art keywords
- supply hose
- reel
- protective element
- winding
- hose
- Prior art date
Links
- 230000001681 protective Effects 0.000 title claims abstract description 143
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 57
- 238000011084 recovery Methods 0.000 claims abstract description 35
- 230000002262 irrigation Effects 0.000 claims description 22
- 238000003973 irrigation Methods 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 17
- 230000001747 exhibiting Effects 0.000 claims description 6
- 230000001737 promoting Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 2
- 230000001264 neutralization Effects 0.000 claims 2
- 241000196324 Embryophyta Species 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 230000001808 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000670 limiting Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000010828 animal waste Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 240000000218 Cannabis sativa Species 0.000 description 1
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 240000001016 Solanum tuberosum Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000001419 dependent Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002829 reduced Effects 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/09—Watering arrangements making use of movable installations on wheels or the like
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/09—Watering arrangements making use of movable installations on wheels or the like
- A01G25/095—Watering arrangements making use of movable installations on wheels or the like winch-driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
- B65H75/403—Carriage with wheels
Abstract
protective device of a dispenser supply hose comprising a trolley (4) which is movable on a soil (200) to be irrigated, which trolley (4) can be associated with a supply hose (2) of a fluid (100); said device further comprises a protective element (9) intended for said supply hose (2), which protective element (9) is interposed between the soil (200) and said supply hose (2), and accumulating means (8) of the protective element (9) suitable for extending said protective element (9) during an extension step of said supply hose (2) and to recover said protective element (9) from said soil (200) during a recovery step of said supply hose (2). ctive element (9) is interposed between the soil (200) and said supply hose (2), and accumulating means (8) of the protective element (9) suitable for extending said protective element (9) during an extension step of said supply hose (2) and to recover said protective element (9) from said soil (200) during a recovery step of said supply hose (2).
Description
A PROTECTIVE DEVICE OF A DISPENSER SUPPLY HOSE AND
RELATED FLUID FEEDING SYSTEM
DESCRIPTION
The invention relates to a protective device of a dispenser supply hose.
It is a further object of the present invention a fluid feeding system
provided with said protective device.
The invention finds application in the field of agriculture and forestry and in
all those sectors wherein irrigation via a fluid is required.
By fluid it is meant water, sewage, animal waste and wastewater from the
central bioenergy.
Within the agricultural field, irrigation systems are known which comprise a
winding-reel of a fluid supply hose, which supply hose is connected to a
dispenser.
The dispenser is fitted aboard a trolley which is being moved on the soil to
be irrigated.
The winding-reel and the trolley carrying the dispenser are generally
arranged opposite to one another. In other words, while the winding-reel is
arranged on a side of the soil to be irrigated, the trolley is fitted aboard the
dispenser which is initially arranged on the side opposite to that where the
winding-reel is situated.
As the irrigation cycle proceeds, the trolley is drawn towards the winding-
reel for moving along the soil to be irrigated.
Thus, a preparatory step as well as an operational step are provided within
a soil watering cycle.
During the preparatory step, both the winding-reel and the trolley are
positioned. During this step, the trolley is arranged in a position opposite to
that of the winding-reel via an agricultural tractor. In other words the
agricultural tractor causes the trolley to move from a starting end (where
the winding-reel of the hose is placed), up to the opposite end of the soil to
be treated. This towing step of the trolley further involves unwinding of the
supply hose initially wound on the winding reel.
In the operational step of the feeding system the trolley is gradually
recovered by the winding-reel, which winding-reel becomes wound on
itself so that the dispenser may start wetting the soil to be irrigated.
Thus, during the preparatory step, the trolley and the dispenser are
operated via the agricultural tractor which provides to tow them, whereas
during the operational step, the trolley and the dispenser are recovered via
rewinding of the supply hose on the winding reel.
It is known that irrigation systems as the one disclosed above by way of
example, exhibit some drawbacks often affecting the supply hose, which
drawbacks generally result in serious complications such as rupture of the
supply hose with consequent dispersion of water in pressure.
A first drawback is due to the fact that during irrigation the supply hose is
subject to damage, when not to complete rupture, because of an
excessive friction occurring between the supply hose in its stretched
condition and the soil. The friction between the hose and the soil
particularly depends on the type of crop as well as on the type of soil.
Indeed, on farmlands with low-stem plants, such as for example potatoes
or beet and the like, in the case where the field was cultivated with non-
irrigated forage immediately after mowing operations, between the outer
wall of the supply hose and the leaves of the plants, there is generated a
high friction such that the supply hose becomes subject to a localized and
concentrated traction often resulting in rupture of the supply hose. Hence,
irrigation on lands farmed with low-stem plants which are rich in leaves,
leads to mechanical stress of the supply hose.
A further aspect which determines drawbacks within the irrigation systems
of the prior art is related to the very nature of the soil, indeed according to
the geographical position of the farmland, for example an agricultural plain
area rather than an agricultural mountain area, wherein the terrain is
smoother and dustier, a different amount of clay and/or sand is likely to be
found.
Where a high sand quantity is present in the soil, this results in a
premature wear of the outer surface of the supply hose due to permanent
abrasion exerted by the sand on the hose. This abrasion subsequently
results in a thinning of the hose thickness to the detriment of the fluid
mechanical seal to the pressure, with consequent rupture of the hose
itself.
Where the soil is clayey, the situation further deteriorates in the event of
rain due to which a very strong adhesion, almost a gluing of the hose to
the soil occurs.
The friction resulting from the hose being towed on the ground, then
causes dragging of the machine and in some cases even tipping thereof,
with consequent loss of stabilization.
Because of friction, mechanical failure of transmission organs or structural
ruptures of the hose winding-reel may also occur.
It is an object of the present invention to provide a protective device able
to overcome the drawbacks encountered in the known art as above
disclosed.
Thus, aim of the present invention is to provide a protective device of a
dispenser supply hose owing to which reliability and robustness of the
supply hose can be improved.
The above and other aims are substantially attained by a protective device
in accordance with what is disclosed in one or more of the appended
claims.
A first aspect of the invention provides a protective device of a dispenser
supply hose comprising a first trolley, movable on a soil to be irrigated,
which can be associated with a supply hose of a fluid exhibiting a first end
connected to a dispenser, which can be associated aboard the first trolley,
and a second end which is stationary and not connected to the first trolley;
wherein said protective device comprises a protective element for said
supply hose interposed between the soil and said supply hose;
accumulating means of the protective element adapted to stretch said
protective element during an extension step of said supply hose, said
extension being defined by a movement of the first trolley, wherein the first
end of the hose is moving away from the second end of the hose, said
accumulating means being further suitable for recovering said protective
element from said soil during a recovery step of said supply hose, said
recovery step being defined by a movement of the first trolley, wherein the
first end is moving towards the second end of the hose; said protective
element is of the flexible type such as to be extended and collected by
said accumulating means respectively in the extension step of the supply
hose and in the recovery step of said supply hose; wherein said
accumulating means comprises a first winding-reel of said protective
element, said first winding-reel being so configured as to rotate idly in
order to allow said protective element to be stretched in conjunction with
the extension step of the supply hose, and to rotate in the opposite
direction in order to promote recovery of said protective element during the
recovery step of the supply hose via a power source belonging to said
accumulating means and suitable for promoting rotation of said first
winding-reel and wherein said accumulating means of said protective
element comprises at least one accompanying drum configured for
rotating opposite the rotation direction of the first winding-reel during the
extension step of the supply hose.
A second aspect of the invention provides an irrigation system of the type
includes a supply hose of a fluid comprising a first end and a second end;
a hose-reel for supporting said supply hose comprising a second winding-
reel connected to the supply hose at the second end thereof; said second
winding-reel being rotatingly operating about an axis between an
unwinding step, wherein the supply hose is being unwound with the first
end thereof moving away from the second end, and a winding step,
wherein the supply hose is being re-wound on the second winding-reel,
thereby causing the first end thereof to move toward the second end; a
dispenser hydraulically connected to the first end of the supply hose for
dispensing a fluid on a foil; a second trolley which is suitable for carrying
on board the dispenser, the second trolley being movable on the soil by
performing a movement away from the hose-reel during the unwinding
step of the supply hose, and a movement towards the hose-reel during the
winding step of the supply hose; wherein the irrigation system comprises a
protective device of the supply hose made according to the first aspect.
A third aspect of the invention provides a protective device of a dispenser
supply hose comprising a first trolley, movable on a soil to be irrigated,
which can be associated with a supply hose of a fluid exhibiting a first end
connected to a dispenser, which can be associated aboard the first trolley,
and a second end which is stationary and not connected to the first trolley;
wherein said protective device comprises a protective element for said
supply hose interposed between the soil and said supply hose;
accumulating means of the protective element adapted to stretch said
protective element during an extension step of said supply hose, said
extension being defined by a movement of the first trolley, wherein the first
end of the hose is moving away from the second end of the hose, said
accumulating means being further suitable for recovering said protective
element from said soil during a recovery step of said supply hose, said
recovery step being defined by a movement of the first trolley, wherein the
first end is moving towards the second end of the hose; said protective
element is of the flexible type such as to be extended and collected by
said accumulating means respectively in the extension step of the supply
hose and in the recovery step of said supply hose, wherein said
accumulating means comprises a power source of the mechanical type,
said power source being configured for reeling or rotational power when
the first end of the supply hose is moving toward the second end thereof
and wherein said accumulating means comprises a first winding-reel of
said protective element and wherein said power source comprises a
mechanical connection between a free end of said first winding-reel and a
drive wheel, which is configurable between a contact position with said soil
and rotatable for converting said translational forward movement of said
ends of the supply hose into a mechanical power, which mechanical power
sets in rotation said second winding-reel, and a raised and non-active
position.
A fourth aspect of the invention provides a protective device of a dispenser
supply hose comprising a first trolley, movable on a soil to be irrigated,
which can be associated with a supply hose of a fluid exhibiting a first end
connected to a dispenser, which can be associated aboard the first trolley,
and a second end which is stationary and not connected to the first trolley;
wherein said protective device comprises a protective element for said
supply hose interposed between the soil and said supply hose;
accumulating means of the protective element adapted to stretch said
protective element during an extension step of said supply hose, said
extension being defined by a movement of the first trolley, wherein the first
end of the hose is moving away from the second end of the hose, said
accumulating means being further suitable for recovering said protective
element from said soil during a recovery step of said supply hose, said
recovery step being defined by a movement of the first trolley, wherein the
first end is moving towards the second end of the hose; said protective
element is of the flexible type such as to be extended and collected by
said accumulating means respectively in the extension step of the supply
hose and in the recovery step of said supply hose, wherein said
accumulating means comprises a power source of the electronic or
electro- hydraulic type, said power source of the electronic or electro-
hydraulic type being configured to exploit respectively electricity or
pressure, and flow rate of a fluid in order that said accumulating means
are activated and wherein said accumulating means comprises a first
winding-reel of said protective element and a lever, operatively associated
with said power source of the electronic or electro-hydraulic type, said
lever being oscillating between a first position reachable by its own weight
in order that said accumulating means may be activated under a loosening
condition between said first winding-reel and said protective element, and
a second position attainable by a lateral thrust imparted by said protective
element in its stretching condition in order that said accumulating means
are not activated under a stretching condition between said second
winding-reel and said protective element.
Further characteristics and advantages will become more apparent from
the detailed description of several non-exclusive embodiments of a
protective device according to the present invention. Dependent claims
correspond to possible embodiments of the invention.
Such a description is provided with reference to the appended figures,
which are also provided as a non-limiting example, wherein:
- Figure 1 is a schematic view of a fluid feeding system provided
with a protective device according to the present invention in an operative
use configuration;
- Figure 2 is a schematic view of a detail of the protective device
illustrated in Figure 1 according to the present invention in one
embodiment thereof;
- Figure 3 is a schematic view of a detail of the protective device
illustrated in Figure 1 according to the present invention in a further
embodiment thereof;
- Figure 4 is a schematic view of a detail of the protective device
illustrated in Figure 1 according to the present invention in a further and
different embodiment thereof;
- Figure 5 is a schematic view of a further detail of the protective
device shown in Figure 1 according to the present invention.
In reference to the appended figures, by the numeral 1 it is generally
signified the protective device of a dispenser supply hose in accordance
with the present invention.
The protective device 1 comprises at least one trolley 4 of the substantially
known type, which is provided with a frame 40 and a plurality of wheels 41
for allowing movement of the trolley 4 on a soil 200 to be irrigated.
Said trolley 4 can be associated to a dispenser 3, the latter being
connected to a supply hose 2 provided with a first end 2a, which is in turn
connected to the dispenser 3, and a second end 2b spaced apart from the
trolley 4 and thus from the dispenser 3.
The dispenser 3 can be equally a sprinkler, an irrigation bar also known as
wing rain, an under-canopy sprinkler or an above-canopy sprinkler or a
sewage dispenser.
The dispenser 3 comprises a dispensing nozzle for spraying fluid 100,
water, sewage, animal waste and effluents, originating from bio-energy
power plants, through which dispensing nozzle the fluid is spread evenly
over an almost semi-circular area.
The dispenser 3 can be positioned at a distance from a second end 2b of
the supply hose 2 in an extension configuration of the supply hose 2. In
other words, the dispenser 3 can be positioned at a distance from the first
end 2a of the supply hose 2 which is at most equal to the overall length of
the hose 2 itself. Preferably, the second end 2b of the hose 2 is connected
with a water source such as a well or a supply channel or an aqueduct.
Said second end 2b may be connected to a hose-reel 5 of the supply hose
2. At the second end 2b, the supply hose 2 may indeed be wound on the
hose-reel 5 or kept free and wound on itself. Since most of the irrigation
systems further provide use of a hose-reel 5, reference shall be made
thereto hereinafter.
The hose-reel 5 is configured to allow the supply hose 2 to be extended in
conjunction with a translational movement of the trolley 4 which is moving
away from the hose-reel 5, and to allow the supply hose 2 to be recovered
in conjunction with a translational movement of the dispenser 3 towards
the hose-reel 5.
Preferably, the hose-reel 5 comprises a second winding-reel 5a of the
supply hose 2. Preferably, the hose-reel 5 further comprises support
means 5b, suitable for supporting the second winding-reel 5a and allowing
rotation thereof about an axis "X", which axis “X” is substantially horizontal
in a use configuration of the dispenser 3. In addition, the support means
5b are configured for transporting both the dispenser 3 and the trolley 4
even at long distance, such as for example when the same are being
transferred from a warehouse following non-use periods, to a farmland 200
to be irrigated. The support means particularly comprises coupling means
5b schematically shown in the appended figures by the reference 6, which
coupling means 5b is suitable for coupling the trolley 4 and the hose-reel
, so that a single transportation thereof is allowed via a motorized vehicle
300 such as an agricultural tractor or the like.
In accordance with the inventive concept of the present invention, the
protective device 1 is configured for operating alternately between an
extension configuration of the supply hose 2 and a recovery configuration
of the supply hose 2.
In particular, the extension configuration of the supply hose 2 takes place
when the first end 2a is moving away from the second end 2b, whilst the
recovery configuration of the supply hose 2 occurs when the first end 2a is
moving towards the second end 2b of the supply hose 2.
In both operational configurations of the device there is provided flowing of
water through the supply hose 2, i.e. both if the supply hose 2 is being
gradually extended or wound on the second winding-reel 5a.
In particular, in an extension configuration of the supply hose 2, the trolley
4 and the dispenser 3 fitted thereon are transportable to a pre-determined
maximum distance with respect to the hose-reel 5, which distance is
preferably determined by the complete unwinding of the hose 2 from the
second winding reel 5a.
Conversely, in a recovery configuration of the supply hose 2, the trolley 4
and the dispenser 3 fitted thereon are brought back to the initial position at
the hose-reel 5, preferably with the supply hose 2 being recovered on the
second reel winding 5a.
In detail, the second winding reel 5a is configured for rotating idly about
the axis "X", so as to allow extension of the irrigation hose 2 in the
extension configuration of the supply hose 2 via motorized means 300,
which motorized means 300 is suitable for towing the trolley 4 and for
rotating in the opposite direction in order that the supply hose 2 can be
recovered through an external power source (not illustrated in the
appended figures).
By way of non-limiting example, the external power source may comprise
a mechanical power socket connected to a power output of an agricultural
tractor, or the external power source may comprise an electrical or
endothermic engine which is suitable for causing the second winding-reel
5a to rotate, which electrical or endothermic engine is mounted exactly on
the hose-reel 5.
In accordance with the present invention, the protective device 1
comprises accumulating means 8 of a protective element 9 for the supply
hose 2, which accumulating means 8 is associated with the trolley 4 in an
operative use configuration of the dispenser 1.
Advantageously, the accumulating means 8 are configured for interposing
the protective element 9 between the soil 200 and the irrigation hose 2 in
the extension configuration of the supply hose 2, in order that the
protective element 9 is collected from the soil 200 in a recovery
configuration of the supply hose 2.
In other words, the supply hose 2 in a use operational configuration of the
dispenser 1 is always resting on the protective element 9, which in turn is
lying on the soil 200 which is being irrigated.
Advantageously, the supply hose 2, in conjunction with its operating
unwinding and recovery configurations on the second winding-reel 5a, is
not in contact with the soil 200, nor with the plants growing in the soil. By
way of example, the appended Figure 1 illustrates schematically the
protective device 1 of the present invention in the extension configuration
of the supply hose 2 in conjunction with which the hose 2 is resting on the
soil 200 only after that the protective element 9 was laid thereon.
In particular, the protective element 9 is of the flexible type so that it can
be unwound and collected by the accumulating means 8 respectively in
the extension configuration of the supply hose 2 and in the recovery
configuration of the supply hose 2 without any jamming taking place.
Preferably the protective element 9 is of the flexible and wind-up ribbon-
like type. By way of non-limiting example, the protective element 9 is a
plastic strip or a woven mesh made of plastic material, e.g. PP or PE or it
can be a cloth made of a non-woven-fabric.
Preferably, the accumulating means 8 of the protective element 9
comprises a first winding-reel 8a of the protective element 9, as shown
schematically in the appended figures. The first winding-reel 8a of the
protective element 9 is rotatable about an axis "Y" which is substantially
horizontal so that the protective element 9 can be extended/collected in a
tangent position to the soil 200.
The first winding-reel 8a is configured for idly rotating about the axis "Y" so
as to allow the protective element 9 to be extended in the extension
configuration of the supply hose 2, and for rotating about the axis "Y" in
opposite direction in order to allow the protective element 9 to be
recovered in the recovery configuration of the supply hose 2 via a power
source 10 of the extension and collecting means 8. The power source 10
will be better disclosed in a later section.
In particular, a free end 9a of the protective element 9 is constrained at the
second winding-reel 5a of the hose 2 so that a counter-acting force is
generated which allows unwinding of the protective element 9 in the
unwinding configuration of the same, as well as extension of the supply
hose 2. Preferably the free end 9a of the protective element 9 is
constrained directly to a portion of the support means 5b, as shown by
way of example in Figure 1 attached hereto. The free end 9a of the
protective element may further be constrained to the ground by means of
a peg 200 (not shown), or the like.
Preferably, in an unwinding configuration of the protective element 9 and
in an extension configuration of the supply hose 2, the second winding-
reel 5a of the hose 2 and the first winding-reel 8a of the protective element
9 respectively rotate idle about the axis "X "and" Y" via a translational
movement of the trolley 4 which is moving away from the hose-reel 5, i.e.
via a translational movement of the first end 2a connected to the dispenser
3, which first end 2a performs a movement away from the second end 2b
connected to the hose-reel 5 of the supply hose 2.
The accumulating means 8 of the protective element 9 comprises at least
one accompanying drum 8b configured to rotate according to a winding
direction of the protective element 9 about the first winding-reel 8a in the
accumulating configuration of the irrigation hose 2. Preferably, the
accumulating means 8 comprises a pair of accompanying drums 8b, still
more preferably the accompanying drums 8b are rotatable brush drums
with rotation direction opposite to the winding direction of the accumulating
means 8.
Advantageously, the accompanying brush drums 8b are suitable for
promoting correct positioning of the protective element 9, especially when
the protective element 9 is being wound on the first winding-reel 8a; the
brush drums 8b further allow removal of any sand deposits, debris, leaves
or grass from the protective element 9, which remained deposited thereon
after that the latter was stretched on the soil 200.
With reference now to the appended Figure 5, the protective device 1
comprises an enabling element 11, which is so configured as to reversibly
select rotation of the first winding-reel 8a between an idle rotation,
corresponding to the extension configuration of the irrigation hose 2, and a
driven rotation through which the protective element 9 is recovered in
conjunction with the recovery configuration of the irrigation hose 2.
The enabling element 11 comprises a pulley 11a which is reversibly
movable between an engaged position (dotted line in the illustration of
Figure 5), and a disengaged position (solid line in the illustration of Figure
), wherein the pulley 11a in the engaged position thereof is engaging and
stretching a belt 11b, which belt 11b is predisposed for a mechanical
transmission between the power source 10 and the first winding-reel 8a; in
this manner the protective element 9 is allowed to be recovered in
conjunction with the recovery configuration of the irrigation hose 2.
In other words, the enabling element 11 is operable in a use configuration
of the dispenser 1 for converting the idle rotation of the second winding-
reel 5a of the supply hose 2 and the first winding-reel 8a of the protective
element 9, in conjunction with the stretching configuration of the protective
element 9 and the extension configuration of the supply hose 2, into a
driven rotation of the second winding-reel 5a of the supply hose 2 and the
first winding-reel 8a of the protective element 9 by means of different
systems better detailed in a later section.
Preferably, the pulley 11a is reversibly movable via an electro-mechanical
actuator. In one embodiment of the present invention, not illustrated in the
appended figures, the device 1 comprises a rechargeable battery adapted
to power the electro-mechanical actuator in which said battery is
rechargeable via a photovoltaic panel or an electrical generator driven by a
hydraulic turbine.
In accordance with an embodiment illustrated schematically in figure 2 and
3, the device 1 comprises accumulating means 8, which in turn comprises
a power source 10 of the electronic or electro-hydraulic type. Preferably,
the power source 10 of the electronic or electro-hydraulic type is
configured to exploit respectively electricity or pressure, and flow rate of a
fluid 100 in order that the accumulating means 8 can be activated.
With particular reference to Figures 2 and 3, the accumulating means 8 of
the protective element 9 comprises an oscillating lever 12 in a reversible
manner, which lever 12 is operatively associated with the power source
of the electronic or electro-hydraulic type.
The oscillating lever 12 is configured for being arranged between a first
position reachable by its own weight, so that the accumulating means 8
are activated in a loosening condition between the first winding-reel 8a
and the protective element 9 - see dotted line in the appended Figures 2
and 3 - and a second position reachable via a lateral thrust imparted by
the protective element 9 which is stretched so that the accumulating
means 8 are not activated in a stretching condition between the first
winding-reel 8a and the protective element 9 - see continuous line in the
illustrations of Figures 2 and 3 annexed hereto.
In other words, when the winding speed of the protective element 9 is not
equal and/or synchronized to the speed of the translational forward
movement based on which the trolley 4 is moving towards the hose-reel 5,
the oscillating lever 12 activates the power source 10, which in turn sets in
rotation the first winding-reel 8a so that the excess of the protective
element 9 can be recovered, which tends to protrude relative to the trolley
4 due to a poor winding tension. In conjunction with a correct winding
tension of the protective element 9 around the first winding-reel 8a, the
oscillating lever 12 becomes subject to a lateral displacement which allows
deactivation of the power source 10.
With particular reference now to Figure 2 attached thereto, in accordance
with the present invention, it is illustrated an embodiment of the device 1
comprising a power source 10 of the electronic type, which comprises an
electric motor associated with the first winding-reel 8a and a micro switch
14 operatively associated with a profiled end of the oscillating lever 12.
The micro switch 14 is switched to a closed state by means of the
oscillating lever 12 in the first position and switched to an open state by
means of the oscillating lever 12 in the second position.
Preferably, the electric engine 13 is powered by a rechargeable battery 15
through a photovoltaic panel 16.
With particular reference now to Figure 3 attached thereto, in accordance
with the present invention, there is illustrated a further embodiment of the
dispenser 1 comprising a power source 10 of the electro-hydraulic type
which includes a hydraulic valve 17 operatively associated at one end of
the oscillating lever 12. The hydraulic valve 17 is switched to an open state
with the oscillating lever 12 being in the first position, and to a closed state
with the oscillating lever 12 being in the second position thereof.
The hydraulic valve 17 is in fluid connection with a hydraulic turbine 18
which is mechanically connected to the first winding-reel 8a in such a
manner that a mechanical torque, generated by the hydraulic turbine 18, is
transmitted to the first winding-reel 8a, so that winding of the protective
element 9 is allowed. Preferably, the hydraulic turbine 18 is mechanically
connected to the enabling element 11 and the latter to the first winding-
reel 8a.
Preferably, the hydraulic valve 17 is configured for withdrawing the fluid
100 from the irrigation hose 2 in proximity of the dispenser 3.
With particular reference now to Figure 4 attached thereto, in accordance
with the present invention, the dispenser 1 is illustrated, which comprises a
power source 10 of the mechanical type. Preferably, the power source 10
of the mechanical type is configured to draw power from the translational
forward movement of the trolley 4 towards the accumulation device 5.
The power source 10 of the mechanical type particularly comprises a
mechanical connection between a free end of the first winding-reel 8a and
a drive wheel 19, which is configurable between a contact position with the
soil 200 and a rotatable position - shown schematically by the continuous
line of the appended Figure 4 - for converting the translational forward
movement of the trolley 4 into mechanical power in order that the first
winding-reel 8a is set in rotation, and a raised and non-active position, as
shown schematically by the dotted line of Figure 4 herewith annexed.
Preferably, the mechanical connection between a free end of the first
winding-reel 8a and the drive wheel 19 is a flexible chain or belt
mechanical transmission.
The present invention has attained the set aims.
Advantageously, the protective device allows stretching and winding of the
supply hose, wherein the supply hose is maintained in a state of
cleanliness suitable for ensuring greater reliability as well as a better
service life than the prior art.
Owing to use of a hose protective element, which completely separates
the hose from the soil and the cultivated plants, the protective device of
the present invention advantageously allows winding and stretching of the
supply hose without any necking and/or excessive friction being formed
due to contact with the soil or the foliage of cultivated plants, even when
the soil or the foliage are wet.
Owing to the protective element which isolates consistently the irrigation
hose from the bearing surface, the device of the present invention
advantageously allows to effectively irrigate any type of soil, regardless if
sandy, clayey, dusty or stony.
The protective device of the present invention advantageously allows to
protect the supply hose with the aid of means partially or completely
independent from an external power source, thereby resulting use of the
dispenser simple, efficient and cost-effective.
Advantageously, the protective device of the present invention improves
smoothness of the hose on the soil, thereby promoting a reduced waste of
energy of the fluid feeding system during rewinding of the supply hose, as
well as an under-sizing of the driving means fitted aboard the hose-reel.
Claims (18)
1. A protective device of a dispenser supply hose comprising: a first trolley, movable on a soil to be irrigated, which can be associated with a supply hose of a fluid exhibiting a first end connected to 5 a dispenser, which can be associated aboard the first trolley, and a second end which is stationary and not connected to the first trolley; wherein said protective device comprises: a protective element for said supply hose interposed between the soil and said supply hose; 10 accumulating means of the protective element adapted to stretch said protective element during an extension step of said supply hose, said extension being defined by a movement of the first trolley, wherein the first end of the hose is moving away from the second end of the hose, said accumulating means being further 15 suitable for recovering said protective element from said soil during a recovery step of said supply hose, said recovery step being defined by a movement of the first trolley, wherein the first end is moving towards the second end of the hose; said protective element is of the flexible type such as to be extended and collected 20 by said accumulating means respectively in the extension step of the supply hose and in the recovery step of said supply hose; wherein said accumulating means comprises a first winding-reel of said protective element, said first winding-reel being so configured as to rotate idly in order to allow said protective element to be 25 stretched in conjunction with the extension step of the supply hose, and to rotate in the opposite direction in order to promote recovery of said protective element during the recovery step of the supply hose via a power source belonging to said accumulating means and suitable for promoting rotation of said first winding-reel and wherein 30 said accumulating means of said protective element comprises at least one accompanying drum configured for rotating opposite the rotation direction of the first winding-reel during the extension step of the supply hose.
2. A device according to claim 1, wherein said at least one 5 accompanying drum is a brush drum.
3. A device according to claim 2, comprising an actuating element configured to reversibly select the rotation of said first winding-reel between a neutral rotation, aimed at promoting suitable arrangement of said protective element in conjunction with the extension step of the 10 supply hose, and a driven rotation, aimed at promoting suitable arrangement of said protective element during the recovery step of the supply hose.
4. A device according to claim 3, wherein said actuating element comprises a pulley, which is reversibly movable between an engaged 15 position, wherein said pulley is engaging and stretching a belt, which belt is predisposed for a mechanical drive between said power source and said first winding-reel, thereby enabling said protective element to be recovered in conjunction with the recovery step of said supply hose, and a disengaged position, wherein said pulley is disengaging said belt by 20 making said first winding-reel rotatably neutral, thus allowing the protective element to be arranged in the extension configuration in conjunction with the extension configuration of the supply hose, said extension step of the supply hose being performed by a driving means which is suitable for towing said first trolley on the soil, thereby causing 25 the first winding-reel to rotate.
5. A device according to any preceding claim, wherein said accumulating means comprises a power source of the mechanical type, said power source being configured for reeling or rotational power when the first end of the supply hose is moving toward the second end thereof.
6. A device according to claim 5, wherein said accumulating means comprises a first winding-reel of said protective element and wherein said power source comprises a mechanical connection between a free end of said first winding-reel and a drive wheel, which is configurable between a 5 contact position with said soil and rotatable for converting said translational forward movement of said ends of the supply hose into a mechanical power, which mechanical power sets in rotation said second winding-reel, and a raised and non-active position.
7. A device according to claim 6, wherein said mechanical connection 10 is a flexible chain or belt mechanical transmission.
8. A device according to any one of claims 1 to 5, wherein said accumulating means comprises a power source of the electronic or electro-hydraulic type, said power source of the electronic or electro- hydraulic type being configured to exploit respectively electricity or 15 pressure, and flow rate of a fluid in order that said accumulating means are activated.
9. A device according to claim 8, wherein said accumulating means comprises a first winding-reel of said protective element and a lever, operatively associated with said power source of the electronic or electro- 20 hydraulic type, said lever being oscillating between a first position reachable by its own weight in order that said accumulating means may be activated under a loosening condition between said first winding-reel and said protective element, and a second position attainable by a lateral thrust imparted by said protective element in its stretching condition in 25 order that said accumulating means are not activated under a stretching condition between said second winding-reel and said protective element.
10. A device according to claim 9, wherein said power source of the electronic type comprises an electric motor associated with said first winding-reel and a micro switch operatively associated with a shaped end of said oscillating lever, wherein said micro switch is switched to a close state via said oscillating lever in said first position, and switched to an open state via said oscillating lever in said second position.
11. A device according to claim 10, wherein said electric motor is fed by 5 a rechargeable battery via a photovoltaic panel.
12. A device according to claim 11, wherein said power source of the electro-hydraulic type comprises a hydraulic valve which is operatively associated to an end of said oscillating lever, wherein said valve is switched to an open state via said oscillating lever in said first position, 10 and switched to a close state via said oscillating lever in said second position, said hydraulic valve being in fluid connection with a hydraulic turbine mechanically connected with said first winding-reel.
13. A device according to claim 12, wherein said valve is configured for collecting said fluid from said supply hose. 15
14. An irrigation system of the type includes: a supply hose of a fluid comprising a first end and a second end; a hose-reel for supporting said supply hose comprising a second winding-reel connected to the supply hose at the second end thereof; said second winding-reel being rotatingly operating about an axis between an 20 unwinding step, wherein the supply hose is being unwound with the first end thereof moving away from the second end, and a winding step, wherein the supply hose is being re-wound on the second winding-reel, thereby causing the first end thereof to move toward the second end; a dispenser hydraulically connected to the first end of the supply 25 hose for dispensing a fluid on a foil; a second trolley which is suitable for carrying on board the dispenser, the second trolley being movable on the soil by performing a movement away from the hose-reel during the unwinding step of the supply hose, and a movement towards the hose-reel during the winding step of the supply hose; wherein the irrigation system comprises a protective device of the supply hose made according to any preceding claim. 5 15. A protective device of a dispenser supply hose comprising: a first trolley, movable on a soil to be irrigated, which can be associated with a supply hose of a fluid exhibiting a first end connected to a dispenser, which can be associated aboard the first trolley, and a second end which is stationary and not connected to the first trolley; 10 wherein said protective device comprises: a protective element for said supply hose interposed between the soil and said supply hose; accumulating means of the protective element adapted to stretch said protective element during an extension step of said
15 supply hose, said extension being defined by a movement of the first trolley, wherein the first end of the hose is moving away from the second end of the hose, said accumulating means being further suitable for recovering said protective element from said soil during a recovery step of said supply hose, said recovery step being 20 defined by a movement of the first trolley, wherein the first end is moving towards the second end of the hose; said protective element is of the flexible type such as to be extended and collected by said accumulating means respectively in the extension step of the supply hose and in the recovery step of said supply hose, 25 wherein said accumulating means comprises a power source of the mechanical type, said power source being configured for reeling or rotational power when the first end of the supply hose is moving toward the second end thereof and wherein said accumulating means comprises a first winding-reel of said protective element and 30 wherein said power source comprises a mechanical connection between a free end of said first winding-reel and a drive wheel, which is configurable between a contact position with said soil and rotatable for converting said translational forward movement of said ends of the supply hose into a mechanical power, which mechanical 5 power sets in rotation said second winding-reel, and a raised and non-active position.
16. A protective device of a dispenser supply hose comprising: a first trolley, movable on a soil to be irrigated, which can be associated with a supply hose of a fluid exhibiting a first end connected to 10 a dispenser, which can be associated aboard the first trolley, and a second end which is stationary and not connected to the first trolley; wherein said protective device comprises: a protective element for said supply hose interposed between the soil and said supply hose; 15 accumulating means of the protective element adapted to stretch said protective element during an extension step of said supply hose, said extension being defined by a movement of the first trolley, wherein the first end of the hose is moving away from the second end of the hose, said accumulating means being further 20 suitable for recovering said protective element from said soil during a recovery step of said supply hose, said recovery step being defined by a movement of the first trolley, wherein the first end is moving towards the second end of the hose; said protective element is of the flexible type such as to be extended and collected 25 by said accumulating means respectively in the extension step of the supply hose and in the recovery step of said supply hose, wherein said accumulating means comprises a power source of the electronic or electro- hydraulic type, said power source of the electronic or electro-hydraulic type being configured to exploit 30 respectively electricity or pressure, and flow rate of a fluid in order that said accumulating means are activated and wherein said accumulating means comprises a first winding-reel of said protective element and a lever, operatively associated with said power source of the electronic or electro-hydraulic type, said lever 5 being oscillating between a first position reachable by its own weight in order that said accumulating means may be activated under a loosening condition between said first winding-reel and said protective element, and a second position attainable by a lateral thrust imparted by said protective element in its stretching condition 10 in order that said accumulating means are not activated under a stretching condition between said second winding-reel and said protective element.
17. A device according to any one of claims 1, 15 or 16, substantially as herein described with reference to any embodiment disclosed. 15
18. An irrigation system according to claim 14, substantially as herein described with reference to any embodiment disclosed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITIT-102015902330578 | 2015-02-16 | ||
ITMO20150027 | 2015-02-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ716897A NZ716897A (en) | 2020-06-26 |
NZ716897B true NZ716897B (en) | 2020-09-29 |
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