EP0382647A1 - Vorrichtung zum Anbringen einer Beschichtung, insbesondere einer bituminösen Strassenbeschichtung - Google Patents

Vorrichtung zum Anbringen einer Beschichtung, insbesondere einer bituminösen Strassenbeschichtung Download PDF

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Publication number
EP0382647A1
EP0382647A1 EP90400363A EP90400363A EP0382647A1 EP 0382647 A1 EP0382647 A1 EP 0382647A1 EP 90400363 A EP90400363 A EP 90400363A EP 90400363 A EP90400363 A EP 90400363A EP 0382647 A1 EP0382647 A1 EP 0382647A1
Authority
EP
European Patent Office
Prior art keywords
spreading
ramp
strip
coating
pass
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Withdrawn
Application number
EP90400363A
Other languages
English (en)
French (fr)
Inventor
Samir Soliman
Jean-François Boulin
Claude Sibaud
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.)
Entreprise Jean Lefebvre
Original Assignee
Entreprise Jean Lefebvre
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 Entreprise Jean Lefebvre filed Critical Entreprise Jean Lefebvre
Publication of EP0382647A1 publication Critical patent/EP0382647A1/de
Withdrawn legal-status Critical Current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
    • 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
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • 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
    • E01C19/16—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 for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • 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
    • E01C19/16—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 for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars

Definitions

  • the present invention relates to a method and a device for spreading a coating, in particular a road coating of bitumen.
  • this covering is spread in several passes, each time forming a strip of the covering (by "strip” is meant the portion of the covering formed by the ramp spreading at each pass, the entire covering being made up of several adjacent parallel contiguous bands formed in several successive passes).
  • the method and the device according to the present invention are not limited to the use of a spreading ramp, a term traditionally used to designate a device for spreading surface coatings.
  • the present invention extends to the use of any other coating spreading member, for example a sled used for the application of cold-poured mixes or else a finisher table used for the implementation. hot mixes.
  • the term “spreading ramp” will extend to all coating spreading members, the installation of which requires at least two contiguous strips of coating material.
  • the height of the nozzles is adjusted so that each point on the roadway receives the bitumen sprayed by three adjacent nozzles; the nozzle flow is therefore adjusted so that each projects a third of the quantity required.
  • the marginal zone will receive only the jet of a single nozzle, and the immediately adjacent zone will receive only the jet of two nozzles.
  • the other zones (4 and 5 in view C) will have however received bitumen from three different nozzles, and will have the desired coating thickness.
  • the spreading will form a coating having the profile shown in view D: the zones 5 ′ and 4 ′ corresponding to the overlap of three jets will have the desired thickness, while the marginal zones 3 ′ And 2 ′ will have a thickness which will be respectively only two thirds and one third of the desired thickness.
  • zone 2 ′ must be formed exactly in line with zone 3 formed during the previous pass, and zone 3 ′ must be formed exactly in line with zone 2, in order to comply with the "three-thirds" rule.
  • this manual piloting hardly allowed a tracking accuracy better than 100 mm, a value of the same order of magnitude as the width x corresponding to the pitch between successive jets and which is typically of the order of 100 mm also.
  • the joint produced was rarely satisfactory and most often had excess thicknesses or thickness defects.
  • the quality of the joint obtained was also very dependent on the skill of the operator, especially in the case of a non-straight course (turn, etc.).
  • the invention proposes a method and a device remedying these drawbacks, which makes it possible to overcome inaccuracies and hazards due to the operator, and which makes it possible to very significantly reduce the difference most often encountered in manual piloting. .
  • the system according to the invention allows a steering precision of the order of 10 to 20 mm, much greater than the value of 100 mm which is the value generally encountered in manual piloting.
  • the invention proposes a method comprising the following successive steps: (a) materialization of a first reference trace (with optionally simultaneous formation of the first strip of the coating); (b) simultaneously, formation of a covering strip by execution of a spreading pass with servo-control of the transverse position of the spreading ramp on the first reference course and materialization of a second reference course according to the transverse movements of the spreading boom; and repeating step (b) as many times as the covering has adjacent bands, the transverse position of the spreading ramp being each time controlled on the reference track materialized during the previous pass with, simultaneously, materialization a new reference track for the next pass.
  • the coating is formed by successive passes all carried out in the same direction of longitudinal displacement, the reference line materialized during a pass being located on the opposite side of the spreading ramp relative to that of the reference line read. during this same pass.
  • the invention also relates to a spreading device for implementing the above method.
  • This device comprises, in itself known manner, a spreading ramp making it possible to form a continuous strip of the covering, as well as means for moving this spreading ramp transversely in translation;
  • this device also comprises, in a characteristic manner of the invention, means for reading a reference track, means for controlling the means of transverse movement of the spreading boom, operating in response to the means for reading a reference trace so as to control the position of the latter on the reference trace read, as well as means for materializing another reference trace spaced transversely relative to the first by a distance equal to the width of a covering strip, these means being integral in translation with the ramp in its transverse movement.
  • the means for reading a reference trace are integral in translation with the ramp in its transverse displacement and deliver to the control means a differential error signal representative of the deviation from the center line of the trace of reference.
  • the means for reading a reference trace are optical means and the means for materializing a reference trace are means for printing a narrow strip of luminescent paint.
  • This coating is produced by a vehicle 100 provided with a spreading ramp 110.
  • This ramp is provided with a series of nozzles configured in the manner described above with respect to FIG. 1, which therefore forms a strip of coating of which the central region has the thickness desired (zones 4 and 5 of FIG. 1C) and whose marginal zones 21 and 22 have a lower thickness, in the form of stair treads (each of this marginal zone 21 and 22 corresponding to zones 2 and 3 of FIG. 1C ).
  • the vehicle 100 On the second pass (lower half of FIG. 2), the vehicle 100 will in the same way form a strip 20 ′ whose left marginal zone 21 ′ must come to exactly cover the right marginal zone 22 of the adjacent strip 20 formed during the pass former.
  • the invention provides for adding to the ramp, on one side thereof, a reading system 120 making it possible to follow a path 10 or 10 ′ materialized during a previous pass and, on the opposite side, a system 130 for materializing a new route 10 ′ or 10 ⁇ intended to allow the piloting of the ramp during the next pass.
  • reading means 120 and tracing 130 are integral with the ramp.
  • the reading means 120 are means making it possible to control the transverse movement of the ramp so as to continuously follow the path 10.
  • the tracing means 30 will ensure that the trace 10 will follow very exactly the profile of the strip 20, whatever the movements of the vehicle 20, in particular when cornering .
  • the reading means 120 will follow the line 10 ′ previously formed, so that the overlapping of the marginal areas of the two strips 20 and 20 ′ will be done with the desired precision. Simultaneously, we can form a new line 10 ⁇ if we have to spread another strip to the right of the strip 20 ′.
  • this can either be carried out by the vehicle which performs a first marking pass exclusively, without spreading, or carried out independently by another means.
  • the position of the spreading ramp is not automatically controlled, the driver of the vehicle being content to follow a border or a line with a mechanical guide such as a chain guide of known type.
  • the reading means 120 are slightly offset inwards in the transverse direction of the ramp, so as to be able to cover the line formed on the ground during the application of the covering strip, thus leaving no trace of this marking.
  • the marking means 130 are offset towards the outside in the transverse direction of the ramp. This makes it possible on the one hand to compensate for the offset towards the inside of the read head 120 and on the other hand to prevent the marking intended for the following pass from being covered by the coating strip being formed or by possible bitumen projections on either side of this strip.
  • FIG. 3 shows a detailed embodiment of the device of the invention.
  • This is suitable for controlling a ramp 110, in itself known, comprising a series of nozzles 111 close together and supplied with bitumen by pipes 112 and 113.
  • the ramp 110 is mounted on a telescopic assembly 114, 115 provided means (not shown) allowing the height adjustment of the position of the ramp to adjust the recovery rate of the jets produced by the different nozzles.
  • Means 140 is also provided (for example a pneumatic or hydraulic cylinder) making it possible to offset the ramp transversely with respect to its median position by means of an appropriate mechanical system (not shown), for example a sliding assembly or articulated parallelogram.
  • an appropriate mechanical system for example a sliding assembly or articulated parallelogram.
  • the lateral displacement of the ramp is for example of the order of 150 mm on either side of its central position.
  • means 120 are read at one end of the ramp (in the drawing, the left end) for reading a reference trace 10.
  • the reference trace is a narrow strip of luminescent paint (width of the order of 10 to 30 mm) and the reading means comprise an intense light source 121 and two luminescence detectors 122, 122 configured in differential mounting. These two detectors deliver to an amplifier 123 a differential error signal representative of the deviation of the plot 10 relative to the median position of the reading system 120; this error signal, which gives the direction of the deviation, is delivered to a control assembly 150.
  • marking means 130 for example consisting of a paint gun 131 which can project onto the ground a narrow strip of paint 10 ′.
  • the control unit 150 controls the jack 140 so as to control the transverse offset of the ramp on the marking 10.
  • the correct functioning of the control system is signaled to the driver by a warning light 151, while another warning light 152 indicates a incorrect functioning of the servo-control, which may be due either to an interruption of the luminescent paint strip, or to a transverse gap between the paint strip and the reading system 120 which exceeds the possibilities of the servo-control.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Road Repair (AREA)
EP90400363A 1989-02-10 1990-02-09 Vorrichtung zum Anbringen einer Beschichtung, insbesondere einer bituminösen Strassenbeschichtung Withdrawn EP0382647A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901753A FR2643095B1 (fr) 1989-02-10 1989-02-10 Procede et dispositif pour epandre un revetement, notamment un revetement routier de bitume
FR8901753 1989-02-10

Publications (1)

Publication Number Publication Date
EP0382647A1 true EP0382647A1 (de) 1990-08-16

Family

ID=9378672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400363A Withdrawn EP0382647A1 (de) 1989-02-10 1990-02-09 Vorrichtung zum Anbringen einer Beschichtung, insbesondere einer bituminösen Strassenbeschichtung

Country Status (2)

Country Link
EP (1) EP0382647A1 (de)
FR (1) FR2643095B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620319A1 (de) * 1993-04-09 1994-10-19 Niigata Engineering Co., Ltd. Kontrollgerät für einen Strassenfertiger
US5636792A (en) * 1995-02-09 1997-06-10 Lockheed Martin Corporation Dye marker for agricultural row guidance
CN108118584A (zh) * 2018-01-25 2018-06-05 河南城建学院 一种贯入式沥青喷洒装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1592195A (de) * 1968-10-30 1970-05-11
FR2336514A1 (fr) * 1975-12-23 1977-07-22 Genty Jacques Equipement de vehicule d'epandage et vehicule d'epandage routier comportant cet equipement
WO1984002150A1 (en) * 1982-11-30 1984-06-07 Road Const Authority Line marking apparatus
EP0283399A1 (de) * 1987-03-19 1988-09-21 Entreprise Jean Lefebvre Vorrichtung und Verfahren zum Herstellen und Aufbringen von Schaumbitumen, Verwendung bei Oberflächenbehandlung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1592195A (de) * 1968-10-30 1970-05-11
FR2336514A1 (fr) * 1975-12-23 1977-07-22 Genty Jacques Equipement de vehicule d'epandage et vehicule d'epandage routier comportant cet equipement
WO1984002150A1 (en) * 1982-11-30 1984-06-07 Road Const Authority Line marking apparatus
EP0283399A1 (de) * 1987-03-19 1988-09-21 Entreprise Jean Lefebvre Vorrichtung und Verfahren zum Herstellen und Aufbringen von Schaumbitumen, Verwendung bei Oberflächenbehandlung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620319A1 (de) * 1993-04-09 1994-10-19 Niigata Engineering Co., Ltd. Kontrollgerät für einen Strassenfertiger
US5484227A (en) * 1993-04-09 1996-01-16 Niigata Engineering Co., Ltd. Control device for asphalt finisher
US5636792A (en) * 1995-02-09 1997-06-10 Lockheed Martin Corporation Dye marker for agricultural row guidance
CN108118584A (zh) * 2018-01-25 2018-06-05 河南城建学院 一种贯入式沥青喷洒装置
CN108118584B (zh) * 2018-01-25 2020-04-24 日照公路材料有限公司 一种贯入式沥青喷洒装置

Also Published As

Publication number Publication date
FR2643095A1 (fr) 1990-08-17
FR2643095B1 (fr) 1991-06-14

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