EP1285998A1 - Device for spreading salt - Google Patents
Device for spreading salt Download PDFInfo
- Publication number
- EP1285998A1 EP1285998A1 EP02078400A EP02078400A EP1285998A1 EP 1285998 A1 EP1285998 A1 EP 1285998A1 EP 02078400 A EP02078400 A EP 02078400A EP 02078400 A EP02078400 A EP 02078400A EP 1285998 A1 EP1285998 A1 EP 1285998A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- salt
- spreading
- loosening
- supply container
- discharge area
- 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.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/2035—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels both rotating parts and reciprocating, oscillating, jolting or vibrating parts
- E01C19/204—Throwers or centrifugal spreaders, e.g. spinner spreader with oscillating stirrer
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt
Definitions
- the invention relates to a device for spreading salt, which device comprises:
- the width of the spreading stream can therefore be adjusted, and the quantity of salt per square metre. These parameters then depend on the speed of the vehicle on which the device is placed.
- the speed of the transport means for transporting the salt from the supply container to the spreading means is usually related to the vehicle speed.
- the loosening means thus exert a force at a right angle to the transporting direction of the salt, whereby the cohesion of the layer of salt is broken and whereby a uniform quantity of salt falls into the spreading means, whereby a uniform distribution of the salt over the road surface is obtained.
- the linear movement is preferably a reciprocal movement. This prevents the distribution of the salt becoming asymmetrical in the flow toward the spreading means, whereby an asymmetrical distribution of the salt over the road surface would be obtained.
- the frequency of the reciprocal movement lies in the range of 30 to 130 strokes per minute. In particular, the frequency is about 80 strokes per minute. It has been found that at such a frequency the layer of salt is loosened sufficiently to obtain a uniform distribution of the salt over the road surface at very low speeds of up to about 40 km/hour, wherein the quantity of salt per square metre is not higher than about 10 gr/m 2 .
- the loosening means comprise a number of protrusions extending through the layers of salt. These protrusions can for instance be pin-like or chains.
- the protrusions are arranged at a fixed relative pitch and the stroke of the reciprocal movement is larger than the pitch. This ensures that the protrusions reach over the whole cross-section of the layer of salt and thus loosen it.
- the loosening means can be driven by a hydraulic and/or an electric motor.
- the spreading means are provided with a coating. It has been found that the salt does not adhere to a coated surface, so that the loosened salt is distributed immediately by the spreading means and does not adhere in the spreading means, whereby a non-uniform distribution could again result.
- Figure 1 shows a vehicle having thereon an embodiment of the device according to the invention.
- Figure 2 shows in schematic perspective view the loosening means of a device according to the invention.
- Figure 1 shows a vehicle 1 having thereon a device 2 according to the invention.
- This device 2 has a supply container 3 for salt 4.
- a conveyor belt 5 is arranged on the underside of this supply container 3.
- valve 6 Arranged in supply container 3 is a valve 6 with which the thickness of the layer of salt 4 on conveyor belt 5 can be adjusted. At the end of conveyor belt 5, in the discharge area, are arranged loosening means 7 which will be further elucidated hereinbelow with reference to figure 2.
- a collecting plate 8 Arranged under the discharge area of conveyor belt 5 is a collecting plate 8 which collects the salt 4 falling from conveyor belt 5 and carries it to spreading plate 9.
- This spreading plate 9 is driven by a motor 17 so that salt 4 is spread over the road surface in a fan shape.
- FIG. 2 shows the loosening means 7 in further detail.
- These loosening means 7 consist of a horizontal rod 10 which is guided by one or more guides 11. These guides 11 ensure that horizontal rod 10 can be moved reciprocally as according to arrow R.
- pins 12 Arranged on the underside of rod 10 are a number of pins 12 which extend along the reversing roller 13 of conveyor belt 5 and thus extend through the layer of salt 14.
- Horizontal rod 10 is coupled to a motor 16 by means of a linkage 15. By driving this motor 16 the linkage 15 ensures that horizontal rod 10 makes a reciprocal movement.
- Pins 12 hereby make a substantially linear movement directed transversely of the direction of transport, whereby the layer of salt 14 is scraped off and the salt can fall uniformly distributed into collecting plate 8.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
Description
- a supply container for the salt,
- transport means arranged under the supply container for transporting a layer of salt from the supply container to a discharge area;
- spreading means placed under the discharge area of the transport means for spreading the salt; and
- loosening means for loosening the layer of salt in the discharge area.
Claims (9)
- Device for spreading salt, which device comprises:a supply container for the salt,transport means arranged under the supply container for transporting a layer of salt from the supply container to a discharge area;spreading means placed under the discharge area of the transport means for spreading the salt; andloosening means for loosening the layer of salt in the discharge area,
the loosening means are drivable and make a substantially linear movement directed transversely of the transport direction. - Device as claimed in claim 1, wherein the linear movement is a reciprocal movement.
- Device as claimed in claim 2, wherein the frequency of the reciprocal movement lies in the range of 30 to 130 strokes per minute.
- Device as claimed in any of the foregoing claims, wherein the loosening means comprise a number of protrusions extending through the layers of salt.
- Device as claimed in claim 4, wherein the protrusions are arranged at a fixed relative pitch and wherein the stroke of the reciprocal movement is larger than the pitch.
- Device as claimed in claim 4 or 5, wherein the protrusions are pin-like.
- Device as claimed in claim 4 or 5, wherein the protrusions comprise chains.
- Device as claimed in any of the foregoing claims, wherein the loosening means are driven by a hydraulic and/or an electric motor.
- Device as claimed in any of the foregoing claims, wherein the spreading means are provided with a coating for reducing the adhesion of salt to the spreading means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1018785 | 2001-08-20 | ||
NL1018785A NL1018785C2 (en) | 2001-08-20 | 2001-08-20 | Device for sprinkling salt. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1285998A1 true EP1285998A1 (en) | 2003-02-26 |
Family
ID=19773890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02078400A Withdrawn EP1285998A1 (en) | 2001-08-20 | 2002-08-16 | Device for spreading salt |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1285998A1 (en) |
NL (1) | NL1018785C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1327717A3 (en) * | 2002-01-03 | 2003-11-12 | Küpper-Weisser GmbH | Spreading device for a winter service spreading vehicle |
FR2935959A1 (en) * | 2008-09-17 | 2010-03-19 | Acometis Les Ateliers De Const | DEVICE FOR EXTRACTING A SNOW REMOVAL PRODUCT |
US7980484B1 (en) | 2008-04-21 | 2011-07-19 | Highway Equipment Company | Automatic flow gap adjusting anti-slab method and apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR968362A (en) * | 1948-06-25 | 1950-11-24 | Hardy & Cie | Improvements to devices for spreading granular or powdery materials |
NL8201441A (en) * | 1982-04-05 | 1983-11-01 | Nido Universal Machines Bv | Powdery or granular material metering feed - has reciprocating plate at hopper outlet to comminute lumps |
-
2001
- 2001-08-20 NL NL1018785A patent/NL1018785C2/en not_active IP Right Cessation
-
2002
- 2002-08-16 EP EP02078400A patent/EP1285998A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR968362A (en) * | 1948-06-25 | 1950-11-24 | Hardy & Cie | Improvements to devices for spreading granular or powdery materials |
NL8201441A (en) * | 1982-04-05 | 1983-11-01 | Nido Universal Machines Bv | Powdery or granular material metering feed - has reciprocating plate at hopper outlet to comminute lumps |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1327717A3 (en) * | 2002-01-03 | 2003-11-12 | Küpper-Weisser GmbH | Spreading device for a winter service spreading vehicle |
US7980484B1 (en) | 2008-04-21 | 2011-07-19 | Highway Equipment Company | Automatic flow gap adjusting anti-slab method and apparatus |
FR2935959A1 (en) * | 2008-09-17 | 2010-03-19 | Acometis Les Ateliers De Const | DEVICE FOR EXTRACTING A SNOW REMOVAL PRODUCT |
EP2165949A1 (en) * | 2008-09-17 | 2010-03-24 | Acometis - Ateliers de Construction Métallique Industrielle de Soultz Société Anonyme | Spreading apparatus for servicing of roads in winter |
Also Published As
Publication number | Publication date |
---|---|
NL1018785C2 (en) | 2003-02-24 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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17P | Request for examination filed |
Effective date: 20030527 |
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AKX | Designation fees paid |
Designated state(s): BE DE DK |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20071228 |