EP0280102B1 - Verfahren und Vorrichtung zum Herstellen oder Erneuern einer Horizontalmarkierung auf Strassen und nach dem Verfahren hergestellte Horizontalmarkierung - Google Patents

Verfahren und Vorrichtung zum Herstellen oder Erneuern einer Horizontalmarkierung auf Strassen und nach dem Verfahren hergestellte Horizontalmarkierung Download PDF

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Publication number
EP0280102B1
EP0280102B1 EP88101751A EP88101751A EP0280102B1 EP 0280102 B1 EP0280102 B1 EP 0280102B1 EP 88101751 A EP88101751 A EP 88101751A EP 88101751 A EP88101751 A EP 88101751A EP 0280102 B1 EP0280102 B1 EP 0280102B1
Authority
EP
European Patent Office
Prior art keywords
profile
marking
particles
paint spray
painted line
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 - Lifetime
Application number
EP88101751A
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German (de)
English (en)
French (fr)
Other versions
EP0280102A1 (de
Inventor
Moise Bollag
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.)
Plastiroute SA
Original Assignee
Plastiroute SA
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
Application filed by Plastiroute SA filed Critical Plastiroute SA
Priority to AT88101751T priority Critical patent/ATE65812T1/de
Publication of EP0280102A1 publication Critical patent/EP0280102A1/de
Application granted granted Critical
Publication of EP0280102B1 publication Critical patent/EP0280102B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
    • E01C23/166—Means for dispensing particulate material on to freshly applied markings or into the marking material after discharge thereof, e.g. reflective beads, grip-improving particles

Definitions

  • the invention relates to a method for producing or renewing a horizontal marking on roads, in particular boundary, guiding and warning lines, to a road marking vehicle for carrying out this method and to a horizontal marking produced using this method.
  • GB-A-2 006 307 discloses a method and a device for applying marking lines to a road surface, according to which reflex beads are injected from a reflex bead dispenser under pressure through a nozzle tube into the ink jet leaving the paint spray gun, but not all leaving the dispenser Glass beads reach the ink jet, but a certain part of these glass beads falls out through a lower opening of the nozzle tube beforehand and falls onto the freshly drawn color track.
  • the aim of this is to ensure that when the horizontal marking is drawn, not only are reflex beads embedded in the marking mass and, over time, when the marking paint is rubbed off by the traffic rolling over it, successively reaching the surface to maintain good reflectivity, but also the freshly drawn one Marking has a good reflectivity from the start thanks to the scattered reflective beads.
  • the described method of shooting reflex beads into the paint jet leaving the paint spray gun should also be an advantageous alternative to the previously known so-called "premix" of reflex beads and thermoplastic paint.
  • reflex beads and paint are first mixed in the storage container and then this mixture is applied from a suitable spray gun.
  • No details are given in GB-A-2 006 307 about the dimensions of the reflective beads. Also in this publication the problem of the night visibility of a horizontal marking in rainy weather is not addressed.
  • known horizontal markings with embedded and scattered reflective beads in the headlight of the car are generally also in the dark easily recognizable when the road is dry. However, they do their job insufficiently or not at all when it is raining or when the road is damp for other reasons, because the retroreflection of road markings that are partially or completely covered by a water film is greatly reduced or practically no longer exists.
  • the headlight light emanating from a vehicle is namely reflected in a reflective manner on the water surface and is not retroreflected towards the driver of the vehicle.
  • retroreflection is understood to mean the retroreflection of the incident light, largely independent of the direction of illumination, through refractive or reflecting parts.
  • EP-A 0 124 946 essentially proposes laying a thin-layer marking as a trace of paint, which remains plastically deformable for a long time after application, sprinkling glass beads on the fresh trace of paint, of which a certain proportion
  • floatation pearls which have undergone a surface treatment to reduce their sinking depth and which deform the trace of color by pressing in a surface profile before the marking compound has completely hardened.
  • Such profiles which are embossed after the marking has been applied, on the one hand require a further, separate operation and can therefore only be produced with a considerable amount of work, on the other hand they are generally subject to relatively rapid abrasion or are leveled after a short time.
  • the invention has for its object to provide a method with which a horizontal marking provided with surface profiles can be produced in a relatively simple and cost-saving manner, which has good visibility even when wet, and also high stability against abrasion and leveling and thus an economic life and also without difficulty by tightening can be renewed.
  • the method according to the invention is characterized by the features specified in claim 1.
  • This method according to the invention makes it possible to generate the surface profiles during the laying of the color track, that is to say in a common work step with only one trip on the route to be processed with an appropriately equipped marking vehicle; small profiles completely covered with marking mass are produced in the manner of colored nubs, on which the subsequently scattered reflective beads adhere as small, retroreflective beads.
  • a profiled horizontal marking produced in this way is particularly cost-effective because, as normal thin or middle layer marking, it can be drawn continuously by spraying as part of the customary, mostly used marking work, without the need for a second operation to produce the surface profiles.
  • Thin and middle layer markings have wet film thicknesses of approximately 0.3 to approximately 1.5 mm and shrink by 20% to 40% during drying, so that the dry film thicknesses are correspondingly lower.
  • profile particles which protrude from the actual color track due to their size, are completely covered by the marking compound and are therefore firmly anchored in the color track, so that the risk of these profile particles being torn out by traffic rolling over them is greatly reduced.
  • they do not hinder snow removal because the snow plow is always there rests on a large number of profiles and therefore always works in the tangential plane at the apex of the profiles without bumping into the edges of the profile. Therefore, the risk is very low that the profiles themselves are damaged when snow is cleared and the profile particles are pressed out.
  • Another advantage is that worn profiled markings can be easily replaced by retightening, which is generally not readily possible with previously known profiled markings.
  • the profile particles are preferably used as the profile particles, there is the further advantage that the areas of the profile particles which protrude from the color trace themselves contribute to reflection or retroreflection as soon as the color layers adhering to these areas pass through the Traffic has been rubbed off.
  • Such a horizontal marking according to the invention therefore still retains its good night visibility in the wet when it is considerably worn out, provided there are still enough profile particles.
  • the invention thus achieves significantly better and longer-lasting night visibility of road markings in rainy weather than was previously possible; this applies in particular to road boundary lines as well as guideline or warning lines, the recognizability of which is particularly important for traffic safety.
  • the method according to the invention can be carried out in such a way that the profile particles are laid at the same time as the marking compound is sprayed on, by being sprinkled or shot into the sharpened color jet or in the immediate vicinity of the point of impact of the jet. However, it can also be done in such a way that a trace of paint is first sprayed, the profile particles are then sprinkled directly on it and then marking compound is applied again in order to completely encase the profile particles.
  • a road marking vehicle for performing the method according to the invention is characterized by the features specified in claim 8.
  • a paint spray gun 2 a profile particle dispenser 4 and, seen in the direction of travel behind it, a bead spreader 7 are arranged on the only schematically indicated marking vehicle 1 which moves in the direction of the arrow.
  • the paint spray gun 2 in a known manner sprays marking compound 3 in the form of a fan-shaped jet transversely to the direction of travel onto the street surface S.
  • the profile particle dispenser 4 mounted in the immediate vicinity of the paint spray gun 2 is directed onto the somewhat inclined paint jet, so that the profile particles 5 are injected into the sprayed marking compound 3 enter before the beam hits the street surface S. In this way, the profile particles 5 are completely covered with marking compound.
  • the minimum dimension of the profile particles 5, which are reflex beads in the example under consideration, is greater than the dry film thickness or the layer thickness of the actual color trace. Therefore, how In FIG. 5a, the horizontal marking 6 produced produces surface profiles 9 in the form of colored knobs, which are formed by the outstanding areas of the profile particles 5 that are completely covered with marking material. Subsequently, 7 reflective beads 8 are sprinkled onto the still fresh, profiled color trace 6 by means of the pearl spreader. The finished color trace 10 thus obtained, which is illustrated in FIG. 5b, therefore has surface profiles 9 provided with reflective beads 8.
  • These scattered reflective beads 8 can be a usual mixture of ordinary reflective beads, the diameter of which is between approximately 0.05 and 0.8 mm and which are therefore smaller than the profile particles 5.
  • the scattered reflection beads can advantageously also contain large reflection beads with a diameter of at least 0.8 mm, preferably of about 1 to 2 mm, which of course improve the visibility of the marking particularly strongly. While such large reflective beads on a level marking would be torn out relatively quickly by the traffic rolling over them, in the case of a marking according to the present invention they are largely protected by the adjacent profile elevations, since the tires of the vehicles rolling over them are essentially supported on the profile elevations and the reflex beads lying in between not or only insignificantly. In order for this protective effect to work well, the profile elevations should be so high on average that they protrude slightly beyond the large beads in between. At Such a marking retroreflect, on the one hand, the usual reflex beads adhering to the profile elevations and, on the other hand, the large reflex beads located between the profile elevations.
  • the marking compound used is preferably a simple and rationally installable thin-layer or middle-layer marking, the solids of which are dissolved in a solvent for application and which, in the case of one-component paints, exclusively by evaporation of the solvent, in the case of multicomponent paints by evaporation of the solvent and harden through chemical drying.
  • the wet film thicknesses are approximately 0.3 mm to 1.5 mm, which corresponds to dry film thicknesses of approximately 0.2 mm to approximately 0.8-1.2 mm.
  • the profile particles 5 are at least 0.6 mm larger than the dry film thickness and, depending on the thickness of the paint layer, can have diameters between about 1 mm and 6 mm, this size of course being chosen so that the profile particles have an adequate profile height with the most stable anchoring in the color trace exhibit.
  • This diameter range is useful for roads on which snow is regularly cleared in winter and therefore there should not be too high profiles. In special cases, especially in areas where no snow removal takes place or is not necessary, profile particles with diameters of up to 8 mm or even 10 mm can be used.
  • the dry film thickness of the pure color trace at the points where there are only marking compound 3 and no profile particles is approximately 1 mm, and the diameter of the profile particles is approximately 3 mm, so that the profile elevations 9 covered with paint and small reflective beads 8 are around protrude about 2 to 3 mm from the actual color trace.
  • the maximum total layer thickness of the finished track 10, measured at the profile elevations, is then about 3 to 4 mm.
  • a sprayable thick-layer marking can also be used.
  • the profile elevations at the locations of the profile particles 5, where the water runs off, are practically never completely washed over by a water film in rainy weather and therefore guarantee good night visibility even when it is raining; furthermore they prevent the formation of a continuous water film and constantly distribute the flowing water. Therefore, even in rainy weather, the profile elevations 9 covered with small glass beads 8 reflect and make the marking clearly visible through retroreflection. Especially with lane boundary lines, which are outside the lane and are therefore usually wet and covered with water for longer periods of time, this night visibility is particularly important and contributes significantly to traffic safety. Because of the proportionate Low profile heights, on the other hand, the method according to the invention is also suitable for the production of center lines, guidelines and warning lines.
  • At least partially irregularly shaped mineral particles such as grit, gravel, broken glass or the like, as profile particles, which, due to their angular shape, also adhere particularly firmly to the marking compound and thus increase the durability of the profiles , these particles preferably being mixed with reflex beads.
  • particles of other suitable material e.g. made of plastic, and of any shape, e.g. in the form of ellipsoids or polyhedra.
  • the profile particle dispenser 4 which is a pneumatic spray gun, is oriented somewhat obliquely to the likewise slightly inclined jet of the paint spray gun 2, so that the profile particles 5 are shot into this jet at an acute angle.
  • the dispenser 4 can also be a simple scattering device and in this case is installed vertically above the inclined jet, so that the profile particles fall vertically onto and into this jet.
  • the paint trace 6 is generated with the aid of two paint spray guns 2a and 2b arranged next to one another at an angle and transversely to the direction of travel, each of which emits a fan-shaped jet 3a or 3b. Both fan-shaped beams lie at least approximately in one plane and overlap.
  • the profile particle dispenser 4 is located in the middle between the two paint spray guns and scatters or shoots the profile particles 5 between the two fan-shaped color beams 3a and 3b into the marking mass before it hits the road surface S.
  • the bead spreader 7 for applying small reflex beads 8 is located at a distance behind this arrangement.
  • the color traces 6 and 10 shown schematically in FIGS. 5a and 5b are again produced. The two color beams can also strike one another on the street surface without overlap and each have half the line width produce.
  • the marking vehicle (not shown in more detail) for drawing a marking track again has two spray guns 2a and 2b oriented at an angle to one another, which in this case are oriented one behind the other in the direction of travel in such a way that the two fan-shaped paint beams 3a and 3b are at least approximately in one meet common line on the street surface S.
  • a profile particle dispenser 4 in the form of a pneumatic gun is arranged inclined in the direction of travel in front of the two paint spray guns in such a way that the ejected profile particles 5 are thrown against and through the front paint jet 3b at a certain angle, so that they are partly from the front paint jet 3b, partly from the rear color beam 3a carried away or caught between the two color rays.
  • the profile particle dispenser 4 can also be arranged in the middle between the two paint spray guns 2a and 2b and be oriented essentially vertically, so that the profile particles ejected pass directly between the two paint jets.
  • a pearl spreader 7 is provided for applying small reflex beads 8 to the color trace 6, so that the profiled color trace 10 covered with reflective pearls is again formed.
  • a paint trace is first sprayed with a first paint spray gun 11, the layer thickness of which is somewhat less than the desired final layer thickness.
  • profile particles 5 are then sprinkled onto the fresh paint trace, and then, using a second paint spray gun 13, marking compound 3 is again sprayed onto the paint trace covered with profile particles 5, so that the profile particles are completely covered with a paint film.
  • reflective beads 8 which preferably also contain the large reflective beads mentioned, are scattered.
  • two paint spray guns can also be used for this purpose, similar to that shown in FIG. 2 or 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Road Repair (AREA)
  • Treatment Of Fiber Materials (AREA)
EP88101751A 1987-02-27 1988-02-06 Verfahren und Vorrichtung zum Herstellen oder Erneuern einer Horizontalmarkierung auf Strassen und nach dem Verfahren hergestellte Horizontalmarkierung Expired - Lifetime EP0280102B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101751T ATE65812T1 (de) 1987-02-27 1988-02-06 Verfahren und vorrichtung zum herstellen oder erneuern einer horizontalmarkierung auf strassen und nach dem verfahren hergestellte horizontalmarkierung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH766/87 1987-02-27
CH76687 1987-02-27

Publications (2)

Publication Number Publication Date
EP0280102A1 EP0280102A1 (de) 1988-08-31
EP0280102B1 true EP0280102B1 (de) 1991-07-31

Family

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Application Number Title Priority Date Filing Date
EP88101751A Expired - Lifetime EP0280102B1 (de) 1987-02-27 1988-02-06 Verfahren und Vorrichtung zum Herstellen oder Erneuern einer Horizontalmarkierung auf Strassen und nach dem Verfahren hergestellte Horizontalmarkierung

Country Status (8)

Country Link
US (1) US4856931A (da)
EP (1) EP0280102B1 (da)
JP (1) JPS63277304A (da)
AT (1) ATE65812T1 (da)
DE (1) DE3863937D1 (da)
DK (1) DK165340C (da)
ES (1) ES2025220B3 (da)
GR (1) GR3003052T3 (da)

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Also Published As

Publication number Publication date
DE3863937D1 (de) 1991-09-05
DK165340B (da) 1992-11-09
US4856931A (en) 1989-08-15
ATE65812T1 (de) 1991-08-15
DK100988A (da) 1988-08-28
JPS63277304A (ja) 1988-11-15
DK165340C (da) 1993-03-29
DK100988D0 (da) 1988-02-26
EP0280102A1 (de) 1988-08-31
JPH0360962B2 (da) 1991-09-18
ES2025220B3 (es) 1992-03-16
GR3003052T3 (en) 1993-02-17

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