EP1404924A1 - Procede permettant de combattre la glissance d'une chaussee d'un revetement analogue au moyen d'un materiau de frottement ou d'un revetement de frottement - Google Patents

Procede permettant de combattre la glissance d'une chaussee d'un revetement analogue au moyen d'un materiau de frottement ou d'un revetement de frottement

Info

Publication number
EP1404924A1
EP1404924A1 EP02745461A EP02745461A EP1404924A1 EP 1404924 A1 EP1404924 A1 EP 1404924A1 EP 02745461 A EP02745461 A EP 02745461A EP 02745461 A EP02745461 A EP 02745461A EP 1404924 A1 EP1404924 A1 EP 1404924A1
Authority
EP
European Patent Office
Prior art keywords
friction material
liquid
ground surface
ground
friction
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.)
Granted
Application number
EP02745461A
Other languages
German (de)
English (en)
Other versions
EP1404924B1 (fr
Inventor
Antti Happonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FI20011494A external-priority patent/FI113484B/fi
Priority claimed from FI20011495A external-priority patent/FI115549B/fi
Application filed by Individual filed Critical Individual
Publication of EP1404924A1 publication Critical patent/EP1404924A1/fr
Application granted granted Critical
Publication of EP1404924B1 publication Critical patent/EP1404924B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the present invention relates to a method and apparatus as defined in the preamble of claim 1 for preventing slipperiness of a roadway or equivalent.
  • the methods used to eliminate slipperiness are based on causing friction materials, including organic or inorganic materials such as sand, gravel, crushed aggregate, expanded clay aggregate, peat, wood chips, sawdust, etc., to adhere to the ground with the aid of water added to it.
  • An adherence phenomenon or "sticking" occurs when the surface temperature of a passage or traffic area, such as a road, is below +0°C and friction material spread onto the surface by a dispensing apparatus freezes fast on the ground (road or the like).
  • Patent specification DE 3732657 discloses a method for improving the friction of an ice surface, using a granular, non-water-soluble friction material, especially sand.
  • the friction material is moistened and heated before being spread on the road surface.
  • moistening and heating the friction material before application is a fairly difficult business and requires additional equipment, which means additional costs. Heating the friction material also adds to the costs.
  • Patent specification FI 105353 discloses a method for sanding a road or equivalent, in which method the sand is spread from a moving vehicle over a desired width, thus producing a sanded road.
  • the sand is caused to adhere to the icy ground by heating the sand particles by means of runners moving behind on the sanded area, which produce a friction and pressure effect on the ground after the sand has been spread.
  • the sand is thus heated and pressed into the ice.
  • the method according to this specification also requires additional equipment for heating the sand, which again increases the costs.
  • the object of the invention is to eliminate the drawbacks of prior art and achieve a new type of method and apparatus for preventing slipperiness.
  • the invention is based on the idea of spreading liquid and/or friction material directly on the ground to form friction areas, such as patches or equivalent, which makes it possible to create friction areas of desired form.
  • An embodiment of the invention is on the principle of spreading no separate friction material onto the ground at all but forming the friction surface needed to prevent slipperiness by applying a freezable liquid to the ground.
  • the liquid can be applied to the ground as patches or equivalent of desired form, so it is possible to create friction material areas of desired form.
  • no extra costs are incurred due to the use, moistening or heating of friction material, which would additionally be fairly laborious and require additional equipment, or due to environmental after-treatment, such as cleaning up, or anti-pollution measures.
  • a second embodiment of the invention is based on the principle of spreading friction material as such onto the ground and applying the liquid needed to moisten it to the ground separately from the same vehicle or machine.
  • the liquid can be spread on the ground in patches or equivalent of desired form, thus allowing to create friction material areas of desired form.
  • the friction material can be spread on the ground directly as such without being moistened before the spreading, thus reducing the number of work operations needed before the spreading of the friction material.
  • the method of the invention is simple and reliable. The equipment required is also very simple.
  • Fig. 1 presents a truck 2 moving on a road 1.
  • the apparatus comprises a liquid tank 3 mounted on the vehicle to store the water/liquid 4 to be used in forming the friction surface.
  • the liquid tank 3 may be thermally insulated.
  • the water/liquid 4 is sprayed onto the surface of the roadway 1 by means of a liquid dispenser 5, into which the water/liquid is supplied via a pipe 6.
  • the dispenser 5 is provided with nozzles 7, by means of which the water/liquid can be sprayed onto the ground in a desired way, e.g. in the form of patch-like swells 8 forming an uneven friction surface on the ground 1.
  • the exhaust pipe 9 of the vehicle can be provided with a by-pass 10, which is so connected to the tank 3 that it produces lost heat for heating them if necessary. It can also be used to heat the liquid dispenser 5 and the pipe 6. The driver can control the amount of heat by adjusting the by-pass flow of exhaust gas by means of a valve 11.
  • the temperature of the water/liquid supplied can be optimized relative to the effects of weather and external temperature, even by cooling if necessary. When pressurized spraying is used, the water/liquid may be under-cooled before being sprayed.
  • the truck 2 moving on a road 1 as shown in the figure may be provided with an apparatus according to the invention for spreading a friction material, preferably in granular form, preventing slipperiness, such as sand.
  • the apparatus comprises a platform on which the sand to be spread is loaded.
  • the vehicle is provided with a liquid tank, mounted e.g. on the front side of the platform, for water/liquid to be spread on the roadway 1 in connection with the spreading of sand.
  • the liquid tank and also the platform may be thermally insulated.
  • the sand is spread as such on the roadway by means of a spreading/scattering device provided in the platform, and cold friction material can be used advantageously as it fastens sooner to the road/ground.
  • the water/liquid is sprayed onto the surface of the roadway 1 before the spreading of the sand, by means of the liquid dispenser mounted in front of the spreading/scattering device, water/liquid being supplied into the dispenser via a pipe.
  • the dispenser is provided with nozzles, by means of which the water/liquid can be sprayed onto the ground in a desired manner, e.g. in patches, in which case the sand will only stick to the road in the area of these patches. This reduces the amount of sand consumed in sanding. Instead of patches it is possible to use stripes etc., making it in some cases possible to influence a vehicle moving on the icy surface so as to direct it in a given direction.
  • the exhaust pipe of the vehicle can be provided with a by-pass so arranged in conjunction with the tank and the platform that it produces lost heat for heating these if necessary. It can also be used to heat the liquid dispenser and the pipe. The driver can control the amount of heat by adjusting the by-pass flow of exhaust gas by means of a valve.
  • the temperature of the water/liquid supplied can be optimized relative to the effects of weather and external temperature, even by cooling if necessary. When pressurized spraying is used, the water/liquid may be under-cooled before being sprayed.
  • the friction material may also be spread on the ground by means of a patterned cylindrical roll/roll mat 21 as presented in Fig. 2, whose surface is provided with flutings 22 of desired form.
  • a spreading device like this may be of a self- propelling type or it may be of a type designed to be hauled behind a vehicle/machine.
  • the roll/roll mat may be of a tooling type, in which case the material used as friction material can be obtained entirely or partly from the ground.
  • the friction material may also consist of e.g. triangular pieces of ice, which always stick by one side to the ground, optimal adhesion to the moistened ground being thus ensured, so that no other friction material is needed.
EP02745461A 2001-07-09 2002-07-09 Procede permettant de combattre la glissance d'une chaussee d'un revetement analogue au moyen d'un materiau de frottement ou d'un revetement de frottement Expired - Lifetime EP1404924B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FI20011494A FI113484B (fi) 2001-07-09 2001-07-09 Menetelmä ja laitteisto ajoradan tai vastaavan liukkauden estämiseksi kitkapinnan avulla
FI20011495 2001-07-09
FI20011494 2001-07-09
FI20011495A FI115549B (fi) 2001-07-09 2001-07-09 Menetelmä ja laitteisto ajoradan tai vastaavan liukkauden estämiseksi kitkamateriaalin avulla
PCT/FI2002/000619 WO2003006745A1 (fr) 2001-07-09 2002-07-09 Procede permettant de combattre la glissance d'une chaussee d'un revetement analogue au moyen d'un materiau de frottement ou d'un revetement de frottement

Publications (2)

Publication Number Publication Date
EP1404924A1 true EP1404924A1 (fr) 2004-04-07
EP1404924B1 EP1404924B1 (fr) 2010-09-29

Family

ID=26161198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02745461A Expired - Lifetime EP1404924B1 (fr) 2001-07-09 2002-07-09 Procede permettant de combattre la glissance d'une chaussee d'un revetement analogue au moyen d'un materiau de frottement ou d'un revetement de frottement

Country Status (6)

Country Link
EP (1) EP1404924B1 (fr)
AT (1) ATE483068T1 (fr)
CA (1) CA2453398A1 (fr)
DE (1) DE60237822D1 (fr)
NO (1) NO20040082L (fr)
WO (1) WO2003006745A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322322A (zh) * 2011-09-27 2012-01-18 江苏天嘉车辆技术有限公司 一种发动机尾气余热回收利用装置
CN102747703A (zh) * 2012-07-30 2012-10-24 张铁民 液体融雪剂撒布机
GB2533811A (en) * 2015-01-02 2016-07-06 Flynn Caroline A de-icing system for a vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038889A (en) * 1962-11-27 1966-08-10 Anders Gruvris Vehicles for spreading, on the ground or roads, materials such as gravel, sand and the like
DE3002328A1 (de) * 1980-01-21 1981-07-23 Kurt 1000 Berlin Uderstadt Verfahren zum abstumpfen von verkehrsflaechen gegen eisglaette
DE3423354A1 (de) * 1984-06-25 1986-06-05 INTU-Institut für neue Technologien im Umweltschutz GmbH, 4430 Steinfurt Verfahren und streumaterial zur erhoehung der griffigkeit von eisflaechen
DE3732657A1 (de) 1987-09-28 1989-04-13 Taetzner Wolfgang Verfahren zur erhoehung der griffigkeit von eisflaechen
SU1701774A1 (ru) * 1989-03-10 1991-12-30 Mikhalchevskij Nikolaj V Способ предотвращени скользкости дорожных покрытий
NL9300955A (nl) * 1993-06-03 1995-01-02 Nido Universal Machines Bv Strooi-inrichting en een verdeelkamer daarvoor.
FI105353B (fi) 1996-11-07 2000-07-31 Tapio Virokannas Menetelmä ja hiekoituslaitteisto tien tai vastaavan hiekoittamiseksi

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03006745A1 *

Also Published As

Publication number Publication date
EP1404924B1 (fr) 2010-09-29
NO20040082L (no) 2004-01-19
WO2003006745A1 (fr) 2003-01-23
CA2453398A1 (fr) 2003-01-23
DE60237822D1 (de) 2010-11-11
ATE483068T1 (de) 2010-10-15

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