EP0109303A2 - Vorrichtung und Verfahren zum Steuern der abzugebenden Menge beim Aufbringen eines Materials von einem sich bewegenden Fahrzeug aus - Google Patents

Vorrichtung und Verfahren zum Steuern der abzugebenden Menge beim Aufbringen eines Materials von einem sich bewegenden Fahrzeug aus Download PDF

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Publication number
EP0109303A2
EP0109303A2 EP83306944A EP83306944A EP0109303A2 EP 0109303 A2 EP0109303 A2 EP 0109303A2 EP 83306944 A EP83306944 A EP 83306944A EP 83306944 A EP83306944 A EP 83306944A EP 0109303 A2 EP0109303 A2 EP 0109303A2
Authority
EP
European Patent Office
Prior art keywords
air
speed
spraying
vehicle
substance
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.)
Ceased
Application number
EP83306944A
Other languages
English (en)
French (fr)
Other versions
EP0109303A3 (de
Inventor
Gary L. Mark
Kenneth Wands
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.)
REDLAND PRISMO Corp
Original Assignee
REDLAND PRISMO Corp
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 REDLAND PRISMO Corp filed Critical REDLAND PRISMO Corp
Publication of EP0109303A2 publication Critical patent/EP0109303A2/de
Publication of EP0109303A3 publication Critical patent/EP0109303A3/de
Ceased 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
    • E01C23/20—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ
    • E01C23/22—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying
    • E01C23/222—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying specially adapted for automatic spraying of interrupted, individual or variable markings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/06—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump the delivery being related to the movement of a vehicle, e.g. the pump being driven by a vehicle wheel

Definitions

  • the invention relates to apparatus for automatically controlling the rate at which a substance such as paint is deposited from a moving vehicle onto an adjacent surface such as roadway in order to form a coating of uniform thickness.
  • a method of metering the thickness of the paint in accordance with the vehicle speed which has been tried is to use gear pumps powered by the vehicle power take-off.
  • the power take-off increases and decreases with the road speed of the vehicle in a specific gear, so that as the pumps go faster or slower they meter the thickness of the paint, at least to an approximation, to correspond to the vehicle speed.
  • this method has a serious disadvantage in that the mechanical drives on the gear pumps interfere with the operation of the vehicle.
  • an air pump is used to supply the substance to be sprayed. More particularly, a variable flow air valve controls flow of air to a diaphragm pump in accordance with a signal indicating the speed of the vehicle so that a uniform coating is sprayed onto the highway or other surface.
  • air pumps substantially reduces the expense of maintenance since the parts which must be replaced are very inexpensive.
  • the pump surfaces which contact the paint can be coated with polytetrafluoroethylene (Teflon R ) and are therefore much more resistent to corrosion.
  • air pumps of this type can handle greatly varying flow rates and therefore the same pump can be used for filling the paint tank requiring high flow rates, for example, 25 gallons per minute and at the same time for spraying at low levels, for example, 4 gallons per minute. Since spraying and filling do not occur at the same time, the entire capacity of the compressor can be used during the filling operation and yet the compressor volume is sufficient to provide both the pumping and atomizing of the paint during striping.
  • Another advantage of the present invention is the elimination of the necessity of recirculation of the fluid which drives the pump. Like any air system, the air can simply be exhausted after operating the pump or other elements of the system.
  • two separate and parallel spray lines are provided so that two colors or types of paint may be sprayed simultaneously.
  • yellow paint and white paint are sprayed to create two different colored highway lines.
  • air from the compressor is directed to separate adjustable air ratio valves each of which is controlled by a signal indicating vehicle speed.
  • the vehicle speed is preferably detected utilizing the pulse train which is conventionally produced and used to intermittently interrupt the spray to produce the broken line which is conventionally desired for highway striping.
  • a wheel can be lowered into contact with the road surface so as to rotate with the vehicle during striping.
  • An electrical pulse train is thus produced, the frequency of which indicates the vehicle speed.
  • this pulse train is converted to a DC signal by a conventional frequency to DC converter and applied to a control circuit.
  • the control circuit applies a signal to an electric pneumatic transducer which controls the air valve.
  • the same pulses are used then conventionally to operate the intermittent line mechanism and periodically interrupt spraying to produce the broken highway stripes.
  • road line painting truck 10 includes a chassis indicated as 12 which mounts a tank 14 for storing a fluid to be sprayed such as paint.
  • An air compressor 16, a control indicated as 18 and a pair of spray gun carriages generally indicated as 20 (only one of which can be seen in FIGURE 1) are mounted on chassis 12. Paint is pumped by a pump (not shown in FIGURE 1), in the present invention a diaphragm air pump, from tank 14 to the spray gun carriages 20 where it is sprayed by the respective guns.
  • Two guns 24 and 26 can be seen in FIGURE 1 but it will be understood that any suitable number can be utilized.
  • FIGURE 2 The system for automatically controlling the rate of spray of a substance such as paint from a moving vehicle such as shown in FIGURE 1 is schematically illustrated in FIGURE 2.
  • an air compressor 30, driven by a power source 32 on the truck deck provides air to two adjustable air ratio valves 34 and 36'each having an automatically adjustable orifice.
  • Adjustable air ratio valves 34 and 36' are each independently adjustable at their adjustable orifices and are connected to a separate carriage for spraying a substance such as paint from the vehicle in a controlled manner as will be described.
  • One spraying carriage may be for one type of paint and the other for spraying another type of paint, e.g., white paint and yellow paint. Since these carriages are substantially identical, only one will be described.
  • Adjustable valve 34 is automatically adjusted according to the speed of the vehicle by a DC voltage generated by a frequency to DC converter 39 which is responsive to the speed of road wheel 40.
  • the converter 39 controls the adjustable orifice of adjustable air ratio valve 34 through a conventional control unit 42 which contains a circuit for calibrating the signal from convertor 39 and switches which permit the system to be operated in either a manual or automatic mode.
  • Dials on unit 42 permit the paint thickness to be adjusted to the appropriate level for each of the paints being utilized.
  • the output of control unit 42 drives the electric to pneumatic transducer 44.
  • a model T-512D transducer from Fairchild Industrial Products Division is satisfactory.
  • a manual override device 46 permits manual operation of the valve 34 when the automatic control means is malfunctioning.
  • the output air pressure at valve 34 drives a paint pump 50, which causes the subtance to be sprayed, i.e., the white paint, to be forced from paint tank 14 through spray guns 26 and 28 and guns 22 and 24 (not shown in FIGURE 1).
  • a paint filter 59 is suitably disposed between paint tank 14 and paint pump 50.
  • a heat exchanger 55 is suitably disposed between pump 50 and spray guns 22 and 24 for recovering waste heat in the exhaust as described in the patent to Mitchel et al 4,190,205.
  • Glass beads are commonly mixed with road paint to improve visibility after application, and the system of this invention may be used for spraying such glass beads in addition to paint.
  • the spray guns may comprise double and single color continuous bleed type paint guns or automatic pressure injection glass guns. Typically quick drying road marking materials are applied at 15 mils thickness.
  • Line painting vehicles of the kind described typically include an intermittent line mechanism 56 which can be set to turn spray guns 26 and 28 or spray guns 22 and 24 on and off at a rate proportional to the vehicle speed in order to obtain dashed lines of a preset length.
  • the vehicle speed is communicated to the intermittent line mechanism 56 by skipline wheel 60 which in turn develops skipline pulses at a rate proportional to the speed of road wheel 40.
  • the intermittent line mechanism 56 is also connected to a dual orifice bypass valve 58 which bypasses paint around spray guns 22 and 24 when one or both of spray guns 24 and 26 are closed and returns the bypassing paint to paint tank 14. In this way, a continous flow of paint is driven by paint pump 50 at a continuous pressure relative to road speed, regardless of whether none, one or two spray guns are open as the various road line patterns require.
  • the intermittent line mechanism may suitably comprise a single unit including an electronic solid state counter capable of providing intermittent line pattern control to all four spray guns and both dual orifice bypass vavles 58 and 58 primed. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the following claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
  • Road Repair (AREA)
  • Special Spraying Apparatus (AREA)
EP83306944A 1982-11-15 1983-11-14 Vorrichtung und Verfahren zum Steuern der abzugebenden Menge beim Aufbringen eines Materials von einem sich bewegenden Fahrzeug aus Ceased EP0109303A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44186482A 1982-11-15 1982-11-15
US441864 1982-11-15

Publications (2)

Publication Number Publication Date
EP0109303A2 true EP0109303A2 (de) 1984-05-23
EP0109303A3 EP0109303A3 (de) 1984-11-07

Family

ID=23754600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306944A Ceased EP0109303A3 (de) 1982-11-15 1983-11-14 Vorrichtung und Verfahren zum Steuern der abzugebenden Menge beim Aufbringen eines Materials von einem sich bewegenden Fahrzeug aus

Country Status (2)

Country Link
EP (1) EP0109303A3 (de)
JP (1) JPS59145804A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470877A1 (de) * 1990-08-08 1992-02-12 Colas S.A. Vorrichtung zum Verteilen einer flüssigen Substanz und Maschine zum gleichzeitigen Aufbringen der Substanz und eines Strassendeckenmaterials
US5324136A (en) * 1990-05-21 1994-06-28 Colas S.A. Apparatus for spreading bonding emulsion or similar material for road asphalt
WO1998004779A1 (en) * 1996-07-17 1998-02-05 Borum Industri A/S A device and a method for applying markings on a solid carriage way installation; such as application of road marking lines
KR100400820B1 (ko) * 2000-10-25 2003-10-10 하스라인기계건설 주식회사 차선도포기
WO2004011725A1 (en) * 2002-07-26 2004-02-05 Ingersoll-Rand Company Controller for a compacting vehicle wetting system
EP1466051A2 (de) * 2002-01-15 2004-10-13 Graco Minnesota Inc. Linienmarkierungsvorrichtungssensor und -anzeigesystem
CN107497634A (zh) * 2016-06-14 2017-12-22 珠海格力电器股份有限公司 一种点胶涂覆系统
BE1030124B1 (nl) * 2021-12-27 2023-07-26 Trafiroad Nv Werkwijze en inrichting voor het optimaliseren van de flexibiliteit tussen solvent-gedragen en water-gedragen coatings voor wegmarkeringen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2504854B2 (ja) * 1990-04-09 1996-06-05 株式会社ダイア 路面ライン引装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB792060A (en) * 1955-07-11 1958-03-19 Aerostyle Ltd Improvements in and relating to wheeled machines for marking lines on roads and the like
GB946541A (en) * 1959-06-11 1964-01-15 Sandall Prec Company Ltd Improvements in or relating to the spraying of marking substances on to roads and other surfaces
US4247045A (en) * 1979-04-20 1981-01-27 Prismo Universal Corporation Automatic volume control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB792060A (en) * 1955-07-11 1958-03-19 Aerostyle Ltd Improvements in and relating to wheeled machines for marking lines on roads and the like
GB946541A (en) * 1959-06-11 1964-01-15 Sandall Prec Company Ltd Improvements in or relating to the spraying of marking substances on to roads and other surfaces
US4247045A (en) * 1979-04-20 1981-01-27 Prismo Universal Corporation Automatic volume control system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324136A (en) * 1990-05-21 1994-06-28 Colas S.A. Apparatus for spreading bonding emulsion or similar material for road asphalt
EP0470877A1 (de) * 1990-08-08 1992-02-12 Colas S.A. Vorrichtung zum Verteilen einer flüssigen Substanz und Maschine zum gleichzeitigen Aufbringen der Substanz und eines Strassendeckenmaterials
FR2665717A1 (fr) * 1990-08-08 1992-02-14 Colas Sa Dispositif d'epandage d'une substance fluide et machine permettant l'application simultanee de cette substance et du revetement d'une chaussee.
US5279500A (en) * 1990-08-08 1994-01-18 Colas S.A. Apparatus for spreading a road surfacing material
WO1998004779A1 (en) * 1996-07-17 1998-02-05 Borum Industri A/S A device and a method for applying markings on a solid carriage way installation; such as application of road marking lines
KR100400820B1 (ko) * 2000-10-25 2003-10-10 하스라인기계건설 주식회사 차선도포기
EP1466051A4 (de) * 2002-01-15 2006-01-11 Graco Minnesota Inc Linienmarkierungsvorrichtungssensor und -anzeigesystem
EP1466051A2 (de) * 2002-01-15 2004-10-13 Graco Minnesota Inc. Linienmarkierungsvorrichtungssensor und -anzeigesystem
US6827524B2 (en) 2002-07-26 2004-12-07 Ingersoll-Rand Company Controller for a compacting vehicle wetting system
WO2004011725A1 (en) * 2002-07-26 2004-02-05 Ingersoll-Rand Company Controller for a compacting vehicle wetting system
CN100392186C (zh) * 2002-07-26 2008-06-04 英格索尔-兰德公司 用于压实车辆润湿系统的控制器
CN107497634A (zh) * 2016-06-14 2017-12-22 珠海格力电器股份有限公司 一种点胶涂覆系统
BE1030124B1 (nl) * 2021-12-27 2023-07-26 Trafiroad Nv Werkwijze en inrichting voor het optimaliseren van de flexibiliteit tussen solvent-gedragen en water-gedragen coatings voor wegmarkeringen

Also Published As

Publication number Publication date
EP0109303A3 (de) 1984-11-07
JPS59145804A (ja) 1984-08-21

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Inventor name: WANDS, KENNETH

Inventor name: MARK, GARY L.