CA2617215C - Spreader assembly for a bulk material spreader vehicle - Google Patents
Spreader assembly for a bulk material spreader vehicle Download PDFInfo
- Publication number
- CA2617215C CA2617215C CA 2617215 CA2617215A CA2617215C CA 2617215 C CA2617215 C CA 2617215C CA 2617215 CA2617215 CA 2617215 CA 2617215 A CA2617215 A CA 2617215A CA 2617215 C CA2617215 C CA 2617215C
- Authority
- CA
- Canada
- Prior art keywords
- spreader assembly
- bulk material
- blades
- spreader
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 description 37
- 239000011343 solid material Substances 0.000 description 4
- 239000011344 liquid material Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
Abstract
A spreader assembly, for a vehicle for spreading anti--icing and/or abrasive bulk material, defines a cavity for receiving the bulk material, and has a rotary disk rotating about an axis and supporting a number of blades for spreading the bulk material from the cavity, and expulsion means for directing the bulk material from the cavity to the number of blades. The spreader assembly also has feed means for supplying a liquid, and which have an outlet so located as to moisten the bulk material with the liquid as the bulk material leaves the cavity along a clear path produced by the action of the expulsion means.
Description
SPREADER ASSEMBLY FOR A BULK MATERIAL SPREADER VEHICLE
The present invention relates to a spreader assembly for a vehicle for spreading anti-icing and/or abrasive material in bulk, e.g. salt, chlorides in general, sand, or grit on a road surface.
A spreader vehicle normally comprises one or more hoppers containing the solid material in bulk; possibly tanks containing liquid material for mixing with the solid material; and one or more spreader assemblies, which are fed with solid material from the hopper, and spread it on the road surface.
As is known, anti-icing materials, such as salt, are spread on a road surface to prevent ice forming, and moving vehicles from losing grip; and abrasive materials, such as grit, are spread to ensure grip, even on icy road surfaces.
A spreader assembly normally comprises one or more feed conduits for drop-feeding salt from the hopper; and one or more rotating disks with blades, located downstream from the feed conduits to spread the salt.
The salt, expelled by centrifugal force, covers a spread
The present invention relates to a spreader assembly for a vehicle for spreading anti-icing and/or abrasive material in bulk, e.g. salt, chlorides in general, sand, or grit on a road surface.
A spreader vehicle normally comprises one or more hoppers containing the solid material in bulk; possibly tanks containing liquid material for mixing with the solid material; and one or more spreader assemblies, which are fed with solid material from the hopper, and spread it on the road surface.
As is known, anti-icing materials, such as salt, are spread on a road surface to prevent ice forming, and moving vehicles from losing grip; and abrasive materials, such as grit, are spread to ensure grip, even on icy road surfaces.
A spreader assembly normally comprises one or more feed conduits for drop-feeding salt from the hopper; and one or more rotating disks with blades, located downstream from the feed conduits to spread the salt.
The salt, expelled by centrifugal force, covers a spread
2 area that fans out from the spreader assembly in the opposite direction to the travelling direction of the vehicle.
For effective spreading, the spread area is conveniently controlled by the operator from the vehicle cab.
To improve the anti-icing effect, the solid material may be expelled moistened with liquid material.
To ensure effective, even anti-icing, it is important, when liquid material is used, to prevent the moist salt from forming into large lumps spread too far apart.
WO-A1-2005033417 describes a spreader assembly defining a salt-liquid mixing chamber, and comprising a first number of rotary blades to mix the liquid and salt, and a second number of'blades which receive and spread the moist salt onto the road surface.
The mixing action of the blades, however, fails to solve the problem of lumps forming inside the mixing chamber. It is an object of the present invention to provide a spreader assembly for a bulk material spreader vehicle, designed to eliminate the aforementioned drawbacks.
According to an aspect of the invention, there is provided a spreader assembly for a vehicle for spreading bulk material, the spreader assembly defining a cavity for receiving the bulk material; and a rotary disk rotating about an axis and supporting a number of blades for spreading said bulk material from said cavity, and expulsion means for directing the bulk 2a material from said cavity to said number of blades; and feed means for supplying a liquid, in that said feed means (26)has an outlet so located as to moisten said bulk material with said liquid as said bulk material leaves said cavity along a clear path produced by the action of said expulsion means (24) when said material is already detached from said expulsion means (24).
According to a further aspect of the invention, there is provided a method of moistening bulk material by means of a spreader assembly as claimed in any one of Claims 1 to 14, and comprising a step of moistening said bulk material with a liquid; the method being characterized in that said moistening step is performed as said bulk material is directed along a clear path produced by the action of said expulsion means.
A preferred, non-limiting embodiment of the present invention will be described, purely by way of example, with reference to the accompanying drawings, in which:
For effective spreading, the spread area is conveniently controlled by the operator from the vehicle cab.
To improve the anti-icing effect, the solid material may be expelled moistened with liquid material.
To ensure effective, even anti-icing, it is important, when liquid material is used, to prevent the moist salt from forming into large lumps spread too far apart.
WO-A1-2005033417 describes a spreader assembly defining a salt-liquid mixing chamber, and comprising a first number of rotary blades to mix the liquid and salt, and a second number of'blades which receive and spread the moist salt onto the road surface.
The mixing action of the blades, however, fails to solve the problem of lumps forming inside the mixing chamber. It is an object of the present invention to provide a spreader assembly for a bulk material spreader vehicle, designed to eliminate the aforementioned drawbacks.
According to an aspect of the invention, there is provided a spreader assembly for a vehicle for spreading bulk material, the spreader assembly defining a cavity for receiving the bulk material; and a rotary disk rotating about an axis and supporting a number of blades for spreading said bulk material from said cavity, and expulsion means for directing the bulk 2a material from said cavity to said number of blades; and feed means for supplying a liquid, in that said feed means (26)has an outlet so located as to moisten said bulk material with said liquid as said bulk material leaves said cavity along a clear path produced by the action of said expulsion means (24) when said material is already detached from said expulsion means (24).
According to a further aspect of the invention, there is provided a method of moistening bulk material by means of a spreader assembly as claimed in any one of Claims 1 to 14, and comprising a step of moistening said bulk material with a liquid; the method being characterized in that said moistening step is performed as said bulk material is directed along a clear path produced by the action of said expulsion means.
A preferred, non-limiting embodiment of the present invention will be described, purely by way of example, with reference to the accompanying drawings, in which:
- 3 -Figure 1 shows a rear view of a spreader vehicle and a spreader assembly in accordance with the present invention.
Figure 2 shows a view in perspective of the Figure 1 spreader assembly;
Figure 3 shows a larger-scale view in perspective of a portion of Figure 2 sectioned along vertical plane 111-111 in Figure 2.
Figures 1 and 2 show a spreader vehicle 1 for spreading bulk material, e.g. salt, and comprising a hopper 2; and a spreader assembly 3 fitted to vehicle 1 to spread salt onto a road surface.
Spreader assembly 3 comprises a feed conduit 4 with an inlet 5 positioned to receive the salt from hopper 2;
a frame 6 connected rigidly to an end portion 7 of feed conduit 4, at the opposite axial end to inlet 5; and a bladed spreader disk 8 fitted to frame 6 and rotating about a substantially vertical axis A.
Spreader assembly 3 is preferably fitted to vehicle 1 by means of feed conduit 4, which is designed to withstand static and dynamic stress produced, for example, by the mass of frame 6 and spreader disk 8.
Spreader assembly 3 also comprises a casing 9 fitted in rotary manner to frame 6 in an intermediate axial position between end portion 7 and spreader disk 8; and a preferably hydraulic rotary motor 10 fitted to frame 6, on the opposite axial side of spreader disk 8 to end portion 7.
Figure 2 shows a view in perspective of the Figure 1 spreader assembly;
Figure 3 shows a larger-scale view in perspective of a portion of Figure 2 sectioned along vertical plane 111-111 in Figure 2.
Figures 1 and 2 show a spreader vehicle 1 for spreading bulk material, e.g. salt, and comprising a hopper 2; and a spreader assembly 3 fitted to vehicle 1 to spread salt onto a road surface.
Spreader assembly 3 comprises a feed conduit 4 with an inlet 5 positioned to receive the salt from hopper 2;
a frame 6 connected rigidly to an end portion 7 of feed conduit 4, at the opposite axial end to inlet 5; and a bladed spreader disk 8 fitted to frame 6 and rotating about a substantially vertical axis A.
Spreader assembly 3 is preferably fitted to vehicle 1 by means of feed conduit 4, which is designed to withstand static and dynamic stress produced, for example, by the mass of frame 6 and spreader disk 8.
Spreader assembly 3 also comprises a casing 9 fitted in rotary manner to frame 6 in an intermediate axial position between end portion 7 and spreader disk 8; and a preferably hydraulic rotary motor 10 fitted to frame 6, on the opposite axial side of spreader disk 8 to end portion 7.
- 4 -More specifically, frame 6 comprises a rail 11 to guide rotation of casing 9 about an axis preferably coincident with axis A.
Rotary motor 10 is fitted to spreader disk 8 in such a manner as to be protected against the incoming salt from feed conduit 4.
Rotary motor 10 is conveniently powered by conduits 12 fitted to frame 6 and connectable to the hydraulic circuit of vehicle 1, so the rotation speed of spreader .disk 8 can be driver-controlled from the control panel inside the vehicle cab.
Figure 3 shows a more detailed view of frame 6, which comprises an arm 13 having an end portion 14 crosswise to axis A and underneath spreader disk 8; and a top bracket 15 over casing 9.
Arm 13 preferably also comprises a portion 16 parallel to axis A and connected rigidly to bracket 15.
In a preferred embodiment, arm 13 has a hollow cross section to house at least part of the length of conduits 12 and protect them against the spread material and any debris thrown up off the road surface by vehicle 1 travelling at high speed.
Bracket 15 defines a surface substantially perpendicular to axis A, and is connected rigidly to end portion 7 of feed conduit 4 by two plates 17.
Plates 17 are also connected rigidly to rail 11, which is preferably annular and surrounds end portion 7 of feed conduit 4.
Rotary motor 10 is fitted to spreader disk 8 in such a manner as to be protected against the incoming salt from feed conduit 4.
Rotary motor 10 is conveniently powered by conduits 12 fitted to frame 6 and connectable to the hydraulic circuit of vehicle 1, so the rotation speed of spreader .disk 8 can be driver-controlled from the control panel inside the vehicle cab.
Figure 3 shows a more detailed view of frame 6, which comprises an arm 13 having an end portion 14 crosswise to axis A and underneath spreader disk 8; and a top bracket 15 over casing 9.
Arm 13 preferably also comprises a portion 16 parallel to axis A and connected rigidly to bracket 15.
In a preferred embodiment, arm 13 has a hollow cross section to house at least part of the length of conduits 12 and protect them against the spread material and any debris thrown up off the road surface by vehicle 1 travelling at high speed.
Bracket 15 defines a surface substantially perpendicular to axis A, and is connected rigidly to end portion 7 of feed conduit 4 by two plates 17.
Plates 17 are also connected rigidly to rail 11, which is preferably annular and surrounds end portion 7 of feed conduit 4.
- 5 -, To cooperate with rail 11, casing 9 comprises a number of pins P (Figure 2) equally spaced angularly, and which slide tangentially inside a groove 18 defined by rail 11 and preferably concentric with axis A.
Casing 9 comprises a tubular portion 19, preferably coaxial with axis A; and a cover portion 20 extending radially outwards from an end portion of tubular portion 19, and preferably larger in diameter than spreader disk 8.
Tubular portion 19 is large enough axially to define a cavity 21 closed at the bottom by spreader disk 8, and open towards feed conduit 4 to receive the salt.
Cover portion 20 defines, with spreader disk 8 and tubular portion 19, an annular volume 22, which 0 communicates with cavity 21 through an opening 23 defined at least partly by tubular portion 19 and located downstream from feed conduit 4. Annular volume 22 is open radially to permit salt spreading by spreader disk 8.
In the embodiment shown, for example, the perimeter of opening 23 is closed by spreader disk 8.
Spreader disk 8 comprises a first number of fixed blades 24 inside cavity 21; and a second number of blades 25 integral with blades 24 and located radially 2.5 outwards of tubular portion 19.
Spreader assembly 3 preferably also comprises a tank 26 for distributing known liquid solutions on the salt to enhance its anti-icing effect.
Casing 9 comprises a tubular portion 19, preferably coaxial with axis A; and a cover portion 20 extending radially outwards from an end portion of tubular portion 19, and preferably larger in diameter than spreader disk 8.
Tubular portion 19 is large enough axially to define a cavity 21 closed at the bottom by spreader disk 8, and open towards feed conduit 4 to receive the salt.
Cover portion 20 defines, with spreader disk 8 and tubular portion 19, an annular volume 22, which 0 communicates with cavity 21 through an opening 23 defined at least partly by tubular portion 19 and located downstream from feed conduit 4. Annular volume 22 is open radially to permit salt spreading by spreader disk 8.
In the embodiment shown, for example, the perimeter of opening 23 is closed by spreader disk 8.
Spreader disk 8 comprises a first number of fixed blades 24 inside cavity 21; and a second number of blades 25 integral with blades 24 and located radially 2.5 outwards of tubular portion 19.
Spreader assembly 3 preferably also comprises a tank 26 for distributing known liquid solutions on the salt to enhance its anti-icing effect.
- 6 -More specifically, tank 26 defines a storage volume 27 filled through an inlet 28 by a pipe connected to a circuit on vehicle 1; and an outlet 29 over opening 23.
Tank 26 is preferably fixed with respect to casing 9, and is mounted inside annular volume 22.
Spreader assembly 3 also comprises an actuating device for rotating casing 9 and setting opening 23 to the desired angular position.
The actuating device preferably comprises a rotary W motor 30 fitted to bracket 15; and a sector gear 31 fixed with respect to casing 9 and meshing with a pinion connected to rotary motor 30. Alternatively, the actuating device comprises a hydraulic or electric actuator.
Spreader assembly 3 preferably also comprises one or more angular position sensors, which determine the angular position of opening 23, and transmit a signal to an instrument in the driver's cab to enable the driver to control orientation of the salt spread area.
The angular position sensor is preferably a discrete type, and comprises a counter 32 with a movable rod 33, which cooperates with a number of angularly equally spaced projections fixed angularly with respect to casing 9. Alternatively, the sensor may comprise an encoder.
Spreader assembly 3 according to the present invention operates as follows.
As vehicle 1 travels along the road, the driver
Tank 26 is preferably fixed with respect to casing 9, and is mounted inside annular volume 22.
Spreader assembly 3 also comprises an actuating device for rotating casing 9 and setting opening 23 to the desired angular position.
The actuating device preferably comprises a rotary W motor 30 fitted to bracket 15; and a sector gear 31 fixed with respect to casing 9 and meshing with a pinion connected to rotary motor 30. Alternatively, the actuating device comprises a hydraulic or electric actuator.
Spreader assembly 3 preferably also comprises one or more angular position sensors, which determine the angular position of opening 23, and transmit a signal to an instrument in the driver's cab to enable the driver to control orientation of the salt spread area.
The angular position sensor is preferably a discrete type, and comprises a counter 32 with a movable rod 33, which cooperates with a number of angularly equally spaced projections fixed angularly with respect to casing 9. Alternatively, the sensor may comprise an encoder.
Spreader assembly 3 according to the present invention operates as follows.
As vehicle 1 travels along the road, the driver
- 7 -activates a known feed device to feed salt from hopper 2 to inlet 5 of feed conduit 4.
The salt flows into cavity 21, where it is expelled - evenly and always along the same trajectory, regardless of the type, quantity, and quality of the material being spread - through opening 23 into annular volume 22 by blades 24.
As it flows through opening 23, the salt is moistened with the solution from tank 26, which overflows from storage volume 27 to form a homogenous film.
The salt is therefore moistened after it leaves blades 24, and cannot flow back into cavity 21.
Preferably, the salt is moistened, after it leaves M blades 24, along a path through opening 23, so that the moist grains no longer come into contact with blades 24 and/or do not remain inside cavity 21.
Blades 25 then spread the salt onto the road surface.
To orient the spread area, e.g. to salt the overtaking lane when the vehicle is travelling along the main lane, the driver operates the mechanically or electrically controlled actuator 30 to move opening 23 or the whole assembly, and controls the position of opening 23 by means of the angular position sensor.
Blades 24 therefore substantially define an expulsion device for feeding the salt from cavity 21 through opening 23 into annular volume 22.
The salt flows into cavity 21, where it is expelled - evenly and always along the same trajectory, regardless of the type, quantity, and quality of the material being spread - through opening 23 into annular volume 22 by blades 24.
As it flows through opening 23, the salt is moistened with the solution from tank 26, which overflows from storage volume 27 to form a homogenous film.
The salt is therefore moistened after it leaves blades 24, and cannot flow back into cavity 21.
Preferably, the salt is moistened, after it leaves M blades 24, along a path through opening 23, so that the moist grains no longer come into contact with blades 24 and/or do not remain inside cavity 21.
Blades 25 then spread the salt onto the road surface.
To orient the spread area, e.g. to salt the overtaking lane when the vehicle is travelling along the main lane, the driver operates the mechanically or electrically controlled actuator 30 to move opening 23 or the whole assembly, and controls the position of opening 23 by means of the angular position sensor.
Blades 24 therefore substantially define an expulsion device for feeding the salt from cavity 21 through opening 23 into annular volume 22.
- 8 -Moreover, opening 23 defines a specific flow section defining the cross section of salt flow onto blades 25, which are therefore supplied with salt flow of regular, constant cross section, by virtue of the forced expulsion performed by the blades on the inner disk. This characteristic provides for achieving a precisely shaped spread area, regardless of the type, condition, or quantity of the material being spread.
Blades 24 also provide for disposing of any salt accumulating inside cavity 21.
Spreader assembly 3 according to the present invention has the following advantages.
Moistening the salt along a clear path to blades 25, i.e. when the grains are already detached from blades 24, prevents the moist salt from remaining inside =
cavity 21 and being kneaded by blades 24.
Opening 23 defined by the rotary casing 9 provides for obtaining a precise, adjustable spread area.
Blades 24 provide for smooth expulsion of the salt from cavity 21, regardless of the type, condition, or quantity of salt involved.
Casing 9 being lightweight and easy to control, spreader assembly 3 is compact and lightweight, and can be connected to vehicle 1 by means of feed conduit 4.
Clearly, changes may be made to spreader assembly 3 as described and illustrated herein without, however, departing from the scope of the present invention as defined in the accompanying Claims.
Blades 24 also provide for disposing of any salt accumulating inside cavity 21.
Spreader assembly 3 according to the present invention has the following advantages.
Moistening the salt along a clear path to blades 25, i.e. when the grains are already detached from blades 24, prevents the moist salt from remaining inside =
cavity 21 and being kneaded by blades 24.
Opening 23 defined by the rotary casing 9 provides for obtaining a precise, adjustable spread area.
Blades 24 provide for smooth expulsion of the salt from cavity 21, regardless of the type, condition, or quantity of salt involved.
Casing 9 being lightweight and easy to control, spreader assembly 3 is compact and lightweight, and can be connected to vehicle 1 by means of feed conduit 4.
Clearly, changes may be made to spreader assembly 3 as described and illustrated herein without, however, departing from the scope of the present invention as defined in the accompanying Claims.
- 9 -For example, outlet 29 may be located immediately upstream from opening 23, so as to moisten the salt as it is about to flow out of cavity 21 towards blades 25.
In which case, the liquid and salt are mixed inside cavity 21, but not by blades 24. Moreover, the salt is directed towards opening 23 by centrifugal force, and cannot flow back into cavity 21.
Generally speaking, outlet 29 is so located that the salt is moistened as the individual grains travel towards opening 23 along a clear trajectory produced substantially by centrifugal force, i.e. when the grains are already detached from blades 24.
Preferably, the salt is moistened along a path defined between the radial ends of blades 24 and blades 25 through opening 23, and the moist grains do not travel through the expulsion device.
For example, blades 24 may be radially smaller than tubular portion 19, and outlet 29 may be located adjacent to opening 23, in the gap between blades 24 and tubular portion 19.
Alternatively, outlet 29 may be located some distance from opening 23, and the liquid may be pressurized to strike the salt when the grains are already detached from blades 24 and directed towards opening 23.
Opening 23 may also be fixed with respect to frame 6.
In which case, the liquid and salt are mixed inside cavity 21, but not by blades 24. Moreover, the salt is directed towards opening 23 by centrifugal force, and cannot flow back into cavity 21.
Generally speaking, outlet 29 is so located that the salt is moistened as the individual grains travel towards opening 23 along a clear trajectory produced substantially by centrifugal force, i.e. when the grains are already detached from blades 24.
Preferably, the salt is moistened along a path defined between the radial ends of blades 24 and blades 25 through opening 23, and the moist grains do not travel through the expulsion device.
For example, blades 24 may be radially smaller than tubular portion 19, and outlet 29 may be located adjacent to opening 23, in the gap between blades 24 and tubular portion 19.
Alternatively, outlet 29 may be located some distance from opening 23, and the liquid may be pressurized to strike the salt when the grains are already detached from blades 24 and directed towards opening 23.
Opening 23 may also be fixed with respect to frame 6.
Claims (15)
1. A
spreader assembly for a vehicle for spreading bulk material, the spreader assembly defining a cavity for receiving the bulk material; and a rotary disk rotating about an axis and supporting a number of blades for spreading said bulk material from said cavity, and expulsion means for directing the bulk material from said cavity to said number of blades; and feed means for supplying a liquid, in that said feed means (26)has an outlet so located as to moisten said bulk material with said liquid as said bulk material leaves said cavity along a clear path produced by the action of said expulsion means (24) when said material is already detached from said expulsion means (24).
spreader assembly for a vehicle for spreading bulk material, the spreader assembly defining a cavity for receiving the bulk material; and a rotary disk rotating about an axis and supporting a number of blades for spreading said bulk material from said cavity, and expulsion means for directing the bulk material from said cavity to said number of blades; and feed means for supplying a liquid, in that said feed means (26)has an outlet so located as to moisten said bulk material with said liquid as said bulk material leaves said cavity along a clear path produced by the action of said expulsion means (24) when said material is already detached from said expulsion means (24).
2. A spreader assembly as claimed in Claim 1, characterized in that said clear path is defined between said expulsion means and said number of blades, and does not cross or contact said expulsion means.
3. A spreader assembly as claimed in Claim 2, characterized in that said cavity is defined at least partly by a member having an opening; and in that said outlet is so located as to moisten said bulk material as said bulk material flows through said opening.
4. A spreader assembly as claimed in Claim 3, characterized in that said outlet is adjacent to said opening.
5. A spreader assembly as claimed in Claim 4, characterized in that said outlet is located downstream from said opening.
6. A spreader assembly as claimed in Claim 5, characterized in that said member rotates about said axis.
7. A spreader assembly as claimed in Claim 6, characterized in that said opening is interposed radially between said number of blades and said expulsion means.
8. A spreader assembly as claimed in Claim 7, characterized in that said expulsion means comprise a second number of blades connected rigidly to said rotary disk.
9. A
spreader assembly as claimed in any one of Claims 1 to 8, characterized in that said feed means comprise a tank connected to said outlet.
spreader assembly as claimed in any one of Claims 1 to 8, characterized in that said feed means comprise a tank connected to said outlet.
10. A spreader assembly as claimed in Claim 9 when depending on claim 3, characterized in that said tank is fixed with respect to said member.
11. A spreader assembly as claimed in Claim 1, characterized by comprising actuating means for operating said rotary disk and located on the opposite axial side of said rotary disk to a feed conduit.
12. A spreader assembly as claimed in any one of Claims 3 to 11, characterized by comprising a rotary motor for rotating said member.
13. A spreader assembly as claimed in Claim 11 or 12, characterized in that said rotary disk is fitted to said feed conduit by means of a frame.
14. A spreader assembly as claimed in any one of Claims 3 to 13, characterized by comprising a sensor for determining the angular position of said opening.
15. A method of moistening bulk material by means of a spreader assembly as claimed in any one of Claims 1 to 14, and comprising a step of moistening said bulk material with a liquid; the method being characterized in that said moistening step is performed as said bulk material is directed along a clear path produced by the action of said expulsion means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2006A000934 | 2006-12-29 | ||
| IT000934A ITTO20060934A1 (en) | 2006-12-29 | 2006-12-29 | SPREADING UNIT FOR A VEHICLE SPINNING OF REBUFFER MATERIALS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2617215A1 CA2617215A1 (en) | 2008-06-29 |
| CA2617215C true CA2617215C (en) | 2015-04-21 |
Family
ID=39236104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2617215 Expired - Fee Related CA2617215C (en) | 2006-12-29 | 2007-12-28 | Spreader assembly for a bulk material spreader vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1942230B1 (en) |
| CA (1) | CA2617215C (en) |
| DK (1) | DK1942230T3 (en) |
| IT (1) | ITTO20060934A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011106086A1 (en) | 2011-06-08 | 2012-12-13 | Aebi Schmidt Nederland Bv | spreader |
| DE102013002751A1 (en) * | 2013-02-19 | 2014-09-04 | Rauch Landmaschinenfabrik Gmbh | Distribution machine e.g. disc scatterer for distributing grit e.g. inorganic fertilizer in agricultural field, has toothing that is engaged on drive shaft of driving motor of carousel seated gear |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1215188B (en) * | 1961-04-07 | 1966-04-28 | Atkinson S Agricultural Applia | Spreading device |
| DE2310930A1 (en) * | 1972-03-06 | 1973-09-20 | Laursen As A P | THINKING SPREADER |
| DE3035360C2 (en) * | 1980-09-19 | 1982-12-30 | Willy 7715 Bräunlingen Küpper | Spreading vehicle with spreading devices for granulated and liquid thawing substances |
| DE4235426C1 (en) * | 1992-10-21 | 1994-02-10 | Kuepper Weisser Gmbh | Spreader with liquid supply for winter road service |
| DK176222B1 (en) | 2003-10-07 | 2007-03-05 | Epoke As | Spreading arrangement for a weighing machine for spreading a mixture of granulated material and a liquid as well as a weighing machine comprising such a spreading apparatus |
| DK1634997T3 (en) * | 2004-09-14 | 2008-06-16 | Kugelmann Josef | Streaming material benefits for strings |
-
2006
- 2006-12-29 IT IT000934A patent/ITTO20060934A1/en unknown
-
2007
- 2007-12-28 CA CA 2617215 patent/CA2617215C/en not_active Expired - Fee Related
- 2007-12-28 DK DK07150486.4T patent/DK1942230T3/en active
- 2007-12-28 EP EP07150486.4A patent/EP1942230B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO20060934A1 (en) | 2008-06-30 |
| EP1942230B1 (en) | 2017-12-27 |
| CA2617215A1 (en) | 2008-06-29 |
| EP1942230A1 (en) | 2008-07-09 |
| DK1942230T3 (en) | 2018-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20191230 |