SPRAYING DEVICE AND CARTRIDGE FOR IT

The invention concerns a spraying device, in particular such with a large volume storage vessel, whereby compressed gas is used for the spraying of tank capacity. Usually Sprütunittel becomes, as color sprays od. such with Aerosol Treibmittein. A Aerosol propellant is stored with the means in a box, which can be sprayed, and the propellant drives the Ylittel by a spraying opening, if a valve is opened, whereby the spraying compound is sputtered and sprayed. The use of Aerosol propellants brings numerous disadvantages with itself. Aerosol propellants are relatively expensive; the volume of the container is 2iemlJch small and lies in an order of magnitude that the container can be kept comfortable in the hand. As soon as the box is empty, it is usually thrown away. This is to that extent dangerous, when mostly propellant remains in the box le, and in addition hiedurch the entire, costs the spraying device increased. Further spray guns are well-known for the spraying of color. Sprit2pistolen do not become generally with Aerosol Treibmittein, but operated with compressed gas, and larger Hengen liquid than with can be processed spray cans. However spray guns normally require a substantial cleaning time, if the spraying procedure is terminated or if different spraying compounds, e.g. is mehrkomponentige colors, to be sprayed are. An advantage of the Aerosol spray cans opposite spray guns is in that cleaning of containers, is not necessary hoses, nozzles etc. A goal of the invention is the removal of these disadvantages and the creation of a Ieistungsstarken spraying device, which is operated with Preßgas. This goal is achieved with a spraying device of the kind initially specified by that according to invention the Sprütunittel is contained in a cartridge, which is exchangeably arranged in a pressure chamber, and that a Aerosolventil and a spray nozzle are attached at the cartridge. If the work is terminated or a different means is to be sprayed, the cartridge of the Druckk is only taken, more mmer and replaced by another. The material is e.g. sprayed compressed air by means of Preßgas, so that expensive Aerosol propellants are dispensable. Further the pressure of the gas can be in the 2s device relatively down, e.g. less than 0.7 YlPa, in order to decrease possible dangers with use of a pressure vessel. If the spraying device is not used, neither the pressure chamber nor the cartridge are at pressure. Partly used cartridges can be locked and stored for later use; empty cartridges can be filled again, whereby the waste is reduced. The invention is more near described in the following on the basis preferential remark examples, which are represented in the designs; in these Fig.1 shows a look-figurative opinion of the spraying device according to invention, Fig.2 a look-figurative scrap view of the lower surface of the device, Fig.3 a partial section by pressure chamber and cartridge of the device, Fig.4 a detail 4 from Fig.3, and Fig.5 a cut by a variant of a printing less mechanism. 3s in accordance with Fig.1 and 2 becomes the invention in connection with a spraying device --10-- described, which is trained as driving on one surface which can be sprayed. Such a spraying device is useful, if marking means, e.g. color, on a surface, is to be up-sprayed like a lane, grass od.dgl, for marking parking lots, borders od.dgl. It understands itself anyhow that the invention is applicable also to others than with impellers provided devices, whereby also different spraying compounds than color can be planned. The spraying device points a chassis --11-- up, that of a pair front wheels --12-- and a pair rear wheels --13-- fell. At the chassis --11-- is a handle --14-- to pushing the device intended. An air compressor --15-- is from an internal-combustion engine --16-- propelled and supplies a pressure vessel --18-- by a hose --17-- with compressed air. Yät the 4s discharge opening of the compressor --15-- is a compressed air receiver --19-- verburLden, and a pressure control valve --20-- regulates the air flow to the pressure vessel --18--. At the end of the handle --14-- different controls for the spraying device are attached within comfortable range by an operator. At the handle --14-- is a Gashebel --21-- articulated installed and for adjustment speed of the internal-combustion engine det --16-- over SO a bowden cable --22-- connected with their carburetor. At the handle --14-- is further a Kupplungshebel --23-- linked and over a linkage --24-- attached to (not represented) a conventional clutch. The clutch transfers Kraft of the Breunkraftmaschine --16-- on the rear wheels --13-- the spraying device --10--. Furthermore is at the handle --14-- a Ablug --25-- articulated attached, with over a course linkage --26-- in the following a spraying valve described more near to be opened can. The chassis --11-- a cover wall points --27-- (Fig.2), a pair of side panels --28-- and a pair transverserunning partitions --29-- up. Between Vorderund rear edges of the side panels --28-- extend a front wall --30--, those in Fig.1 shown, in Fig.2 however for reasons of the overview! , and/or a rear wall is ichkeit omitted --31--. By the Seitenwänäe --28-- run axles --12a and 13a-- for Vorderbzw. Rear wheels --12 and/or 13--. The pressure vessel --18-- a housing with a main part points --32-- to the education of an internal pressure chamber --33-- and a cover --34-- up, those by clips --35-- removable on lo the main part --32-- is fastened. The housing points a cylindrical coat wall --36-- as well as a kuppelförmige bottom wall. --37-- up and is from a collar --38-- carried, e.g. by means of pigs or soldering at the lower range of the cylindrical coat wall --36-- is fastened. The collar --38-- is at the cover wall --27-- the chassis --11-- with angles --39-- fastened. The hose --17-- is to a reading in connecting piece --40-- at the cover --34-- the pressure vessel --18-- for the purpose of the compressed air supply to the pressure chamber --33-- attached. At the inlet connecting piece --40-- a bleed valve is intended, over after turning the internal-combustion engine off --16-- the pressure in the pressure vessel --18-- to reduce. An essentially cylindrical, the spraying compound containing cartridge --42-- is within the pressure chamber --33-- arranged and a cylindrical coat wall points --44--, a cover wall --45-- and a bottom wall --46-- up. In accordance with Fig.4, the bottom wall points --46-- a downward-pointing collar --47-- up, which surrounds a Ventilöffnung, whereby a valve arrangement --48-- within the Ventilöffnung arranged as well as at the collar --47-- is fastened. The valve arrangement --48-- a herkömmHches valve can contain of the kind, which is intended with Aerosol spray cans normally. The special valve arrangement --48-- is represented in Fig.4 and consists of a support frame --49--, some tassenförmiges valve housing --50-- forms, and from an inlet pipe --51--, a diameter-rougher section --5la--, that at the inside of the valve housing --50-- is fastened, as well as a diameter-smaller section --51b-- possesses. At the ground of the valve housing --50-- is a circular poetry --52-- arranged, which works as valve seat; by the poetry --52-- and the valve housing --50-- a tappet runs --53--. The upper end of the Ventflstößels --53-- points one outward as well as downward to arranged sealing flange --54-- up, that at the poetry --52-- lies close, whereby one or more openings --55-- in the Ventflstößel --53-- scarcely underneath the sealing flange --54-- are intended. Toward the upper end the tappets --53-- is with the help of one of a feather/spring --58-- downward loaded plate --57-- a second poetry --56-- pressed. The plate --57-- a shoulder possesses --59--, which the poetry --56-- as well as the sealing flange --54-- downward into close plant to the 3s poetry --52-- presses. If the valve is in the situation shown in Fig.4, then it is closed. The valve knows either through upward printings the tappets --53-- or by dumps of the lower end of the tappet --53-- are opened. With dumps of the Ventiistößels --53-- swivels this around one point of the sealing flange --54--, whereby one of the openings --55-- over the poetry --52-- one raises. The second poetry --56-- and the plates --57-- are likewise upward tilted, so that contents of the cartridge --42-- around the plate --57-- and by the openings --55-- into the Ventllstößel --53-- to flow can. The valve arrangement --48-- is at the collar --47-- the cartridge --42-- by pressing on on the support frames --49-- the valve arrangement --48-- around the bulge end of the collar --47-- fastened. Between the collar --47-- and the pressed on edge of the support frame --49-- sealing is a sealing material for hermetic 4s --61-- arranged. With the inlet pipe --51-- the valve is a pipe --63-- connected, upward up to over the level of cartridge contents preserving place extends. With the represented Ausführungsbeisplel the upper end extends --64-- this pipe --63-- up to an opening, by a collar provided with external thread --65-- at the cover wall --45-- the cartridge --42-- is formed. The s0 cartridge --42-- and the upper end of the pipe --63-- can from there by screwing a cap provided with a poetry onto the collars --65-- hermetically to be sealed. If the cartridge --42-- by means of the cap, can it is locked without burying its contents of be transported or stored, whereby also a Luftzutritt to contents or a withdrawal the same by the end --64-- Nr.353377 of the pipe --63-- even with more in reverse or on the side of lying cartridge --42-- is prevented. In the pipe --63-- is scarce over the valve arrangement --48-- an opening --66-- planned, and the drilling of the pipe --63-- is scarce above this opening --66-- by means of a plug --67-- narrowed, its drilling --68-- smaller diameter exhibits than the tubing drilling. In accordance with Fig.2 runs tüstößel --53-- by an opening in the cover wall --27-- the chassis --11--, whereby at the end of the tappet --53-- a spray nozzle --70-- is arranged. The spray nozzle shown --70-- and exhibits an oblong spraying opening as well as a pair flat direction surfaces is similar to that, which is descriptive in the US-PS Nr.3, 817.429. At the cover wall --27-- the chassis --11-- is close of the spray nozzle --70-- on one into the US-PS Nr.3, 700.144 and Nr.3, 187.429 described similar way a control rod --71-- sliding stored, those over a link along one along the rear side of the chassis --11-- linked bell crank --72-- (Fig.1) is attached. If the departure --25-- upward, turns the course linkage is pulled --26-- the bell crank --72--, whereby the control rod --71-- forward in attack at the spray nozzle one moves. A forward movement of the spray nozzle --70-- tilts the Ventflstößel --53-- and the valve opens. With use of the spraying device the cover becomes --34-- the pressure vessel --18-- removed and the spraying compound, e.g. a certain color, containing cartridge --42-- into the Haupttefl --32-- the pressure vessel --18-- begun. The cartridge --42-- is within the pressure vessel --18-- on a circular poetry --73-- (Fig.3) stored, those at the bottom wall --37-- the pressure vessel --18-- is attached, whereby a poetry --74-- between the cover --34-- and in-IauptteiI--32-- the pressure vessel --18-- before putting the cover on --34-- one arranges. The opening in the collar --65-- the cartridge connects the inside for the cartridge --42-- with the pressure chamber --33--, and if the pressure vessel --18-- with the help of the compressor --15-- one pressurizes, then the pressure is in the pressure chamber --33--, in the pipe --63-- as well as in the cartridge --42-- the same. With closed valve prevails in the tappet --53-- Atmospheric pressure. With opened valve compressed air flows by the pipe --63-- as well as by the valve. The plug --67-- decreases the pneumatic flow by the pipe --63--, so that the air pressure in the pipe --63-- underneath the plug --67-- smaller than the air pressure in the pressure vessel --18-- is. There the pressure of cartridge contents within the range of the opening --66-- the pipe --63-- the pressure in the pressure vessel --18-- , flows the Patroneuinhalt is alike by the opening --66--, becomes of by the pipe --63-- flowing air drug along and by the valve of the spray nozzle --70-- supplied. The spray nozzle --70-- sputtered and the spraying compound sprays downward on the surface, over which the spraying device is rolled. With the execution form shown in Fig.4 the plug works --67-- as a printing less pressure for at opened valve by the pipe --63-- flowing gas. However also another printing less mechanism can be intended. Fig.5 shows a pipe --78-- with a venturi section --75-- as to the reduction of the pressure by the pipe --78-- to the Ventäl Einlaßrohr --76-- flowing gas. The opening --77-- is within the Venturiabsehnittes --75-- arranged, whereby cartridge contents by this opening --77-- into the pipe --78-- arrived. With the remark example shown in Fig.4 is the opening --66-- in the pipe --63-- between the plug --67-- and the inlet pipe --51-- the valve intended. Anyhow is the inlet pipe --51-- an extension of the pipe --63-- and the opening --66-- can also in the inlet pipe --51-- or at possibly a Ste] le between the plug --67-- and the Ventflschließglied arranged its. In accordance with Fig.3 and 4 is into an opening in the bottom wall --37-- the pressure vessel --18-- an aligner provided with external thread --79-- screwed in, whereby the collar directed downward --47-- the cartridge --42--, at which the Ventflanordnung --48-- , within a cylindrical 4s recess of the aligner is appropriate --79-- is arranged. The umgebördelte edge --81-- the support frame --49-- the valve arrangement --48-- is because of a circular poetry --82-- on, those within the passport cord --79-- is arranged; the Veatälstößel --53-- runs by an opening --83-- in the ground of the aligner --79-- and an opening --84-- CFig.3) in the cover wall --27-- the chassis --11--. The cartridge --42-- becomes by its dead weight as well as with the pressure in the pressure vessel --18-- downward to so the seals --82 and 73-- pressed, and the covers --34-- the pressure vessel --18-- is by means of the poetry --74-- sealed, so that the pressure vessel --18-- is hermetically sealed. If the cartridge --42-- is emptied or if a change of the spraying compound is desired, e.g. whom x the color kind of the color to be changed is, then is only necessary, the cover --34-- of the pressure vessel --18-- to decrease, the spray nozzle --70-- of the end of the Ventflstößels --53-- to decrease and the cartridge --42-- from the pressure vessel --18-- to lift. The new cartridge --42-- becomes then into the pressure vessel --18-- begun, so that the bottom wall --46-- and the rim --81-- closely at the seals --73 and 82-- lie close, the cover --34-- and a new spray nozzle is closed --70-- s on the tappet --53-- attached. The exchange of the cartridge --42-- takes up only some seconds. Cartridge contents come with the pressure vessel --18-- never in contact, but is always enclosed in the cartridge; it is from there neither with exchange of the cartridge --42-- still after completion of the spraying procedure necessarily, the pressure vessel --18-- to clean. Further no hoses, complicated valves are not missing od.dgl, during the spraying device, which would have to be otherwise cleaned. The spray nozzle --70-- can be trained as cheap injection moulding plastic nozzle, which is thrown away after each use. Since it is not necessary that the cartridge --42-- pressure resistant, there the pressure is within and outside of the cartridge equal to the pressure in the pressure vessel --18-- is, the cartridge can --42-- cheaply, e.g. of plastic to be made. Therefore the empty cartridge can --42-- easily to be thrown away. On the other hand the cartridge can by casting in new spraying compound by of the collar --65-- formed mouthpiece to be again-filled. A partial empty cartridge --42-- can be locked and kept for later use, by on the collar --65-- a cap for the catch of the opening in the collar, provided with internal thread --65-- as well as to sealing the upper end of the 2e of pipe --64-- one screws on. If necessary the spraying device can be provided with a mechanism for change the width of the strip, that with the help of the spray nozzle --70-- one sprays. For example the height of the spray nozzle can --70--, i.e. the distance the same from the surface which can be sprayed, adjustable its” or the direction of the oblong spraying opening can be changed concerning the Fortbewegungsrichtung of the 2s spraying device, as this is stated in the US-PS Nr.3, 924.784. The spraying device according to invention is effectively operable with relatively Meringe pressure. If the device is e.g. used for the spraying of color with within the viscosity usual in the industry, then it can be operated with a pressure under 0,7 MPa. Also in the industry of usual viscosity it is meant that the viscosity lies within the range of 17 to 32 s in the tooth Cup procedure at a temperature of 27°C. The relationship of the inside diameters of the pipe --63-- and the opening --66-- can within the range from 40: I to 1: are appropriate for 1. Although the invention is descriptive in connection with a motor driven air compressor to the compressed air supply, it understands itself that other means, Preßluftflaschen or press gas tank hiefür can be e.g. planned. Further other variants are possible regarding the details in the context of the invention.