EP1389651A1 - Dispositif de pulvérisation de produit pulvérulent tel que des microbilles de verre - Google Patents
Dispositif de pulvérisation de produit pulvérulent tel que des microbilles de verre Download PDFInfo
- Publication number
- EP1389651A1 EP1389651A1 EP03366005A EP03366005A EP1389651A1 EP 1389651 A1 EP1389651 A1 EP 1389651A1 EP 03366005 A EP03366005 A EP 03366005A EP 03366005 A EP03366005 A EP 03366005A EP 1389651 A1 EP1389651 A1 EP 1389651A1
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- European Patent Office
- Prior art keywords
- slide
- main
- chamber
- opening
- seat
- 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.)
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- 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 present invention relates to a device allowing to spray products automatically powders for example glass microbeads time of marking the signal strips on the roads and similar surfaces.
- microbeads of glass we know and use various devices for applying microbeads of glass at the time of application of a material intended for carry out horizontal signs on roads.
- the microbeads have a non-slip function and light reflection.
- a product powder other than glass microbeads is used, such as crushed minerals, for example from silica.
- a machine moving on the road allows paint on the floor and immediately after painting, the microbeads so that they adhere to paint.
- the glass microbeads are pushed from a tank, by constant air pressure, then routed through the pistol through a piping.
- These pistols always have a section passage to an outlet duct, defined or adjustable depending on the models, as well as a closing needle allowing to close this passage.
- microbeads may get caught between the seat and needle. If a large glass ball remains wedged between the seat and the needle, the balls more fines can continue to pass. It then follows glass microbead leaks during shutdown device and especially excessive air consumption of the transport of glass microbeads. Consequently, we have had to size the air compressor by taking account for these leaks or to increase the capacity of needle control means to be able to crush any stuck balls. These solutions strike the equipment prices.
- fluidization is performed at the time of passage of the microbeads glass in the calibrated passage section allowing to improve the flow of glass microbeads in this place.
- This fluidization is achieved by the injection of fluidizing air, which forces the mounting of these guns only on machines equipped with an external source of fluidizing air.
- the invention aims to provide a device for spray with good sealing of closing.
- the closure of the flow of powdery product is obtained by creating two dams successive, which provides a more tight seal safe.
- the first dam is built with the support of main slide against the first seat, and the second barrier is obtained by the contact of the slide interior on the second seat.
- Another object of the invention is to provide a better air tightness between the outlet pipe and the distribution chamber.
- the inner slide advantageously comprises means flexible seals intended to bear against the second seat. This type of contact of a flexible material, such as an elastomer, on the seat allows perfectly provide air tightness.
- the first and second means maneuver are provided so that the open position is ordered at the same time as the retracted position, and that the main slide moves to the position of closing before the inner slide goes into advanced position. Thanks to this time difference closure, the first dam is in place before second, and thus, the pulverulent product located downstream of this dam can continue to flow. So when the inner slide comes into contact with the second seat, said seat is more surely free of product powdery, and tightness is better guaranteed.
- a spring is housed in the closing chamber, the spring tending to move the main slide to the closed position.
- the offset of the inner slide and the slide main is further accentuated by the fact that the spring helps the movement of the main slide towards the position of closing.
- the main slide when controlling the opening in sending a pressurized fluid through the orifice opening and releasing the pressure at the closing, the main slide is retained by the spring while the recoil chamber is put under pressure. The inner slide then moves towards the recoil position. The sealing end is then less exposed to microbeads when the slide principal releases the barrier at the level of the first seat.
- the spring ensures that the slide main is in the closed position when no air pressure supplies the opening and closing.
- the device has an adjustable stop system for position a stop defining either the position opening of the main slide, i.e. the position of recoil of the inner slide. So, we have a means for adjusting the microbead flow by adjusting the passage section between the distribution chamber and the outlet duct, by adjusting the space between the seats and the end of the slide whose position is affected.
- the device includes a pin mounted radially in the main slide and protruding into a slide clearance inside, the edges of the clearance forming stops to limit the stroke of the inner slide by compared to the main slide.
- the body comprises a first scraper seal around the main slide at the outlet in the distribution chamber, and / or the main slide carries a scraper seal around the internal slide at the outlet in the room distribution.
- the inner slide has a longitudinal channel opening at the sealing end to bring spray air in the axis of the outlet duct.
- air flows into the outlet pipe along the main axis and the product pulverulent is driven towards the exit by this flow.
- the main slide comes into position the rest of the powdery product downstream of the dam at the level of the first seat is also driven, and the second seat is more secure to guarantee that contact with the sealing end of the inner slide is made without interposed product.
- the body has a spray air inlet
- the longitudinal channel opens at the other end of the inner slide
- the device comprising sealing means including the opening is controlled by the internal slide when said inner slide is in position moved back to port the channel longitudinal and spray air supply, the spray air can then be led to through the longitudinal channel.
- a device is connected to a source of atomizing air, which it is possible to provide a flow and pressure. Spray air is injected only when the inner slide is in the back position, its distribution being controlled directly by the interior slide. So we have a very simple to order.
- the slide interior has a radial hole communication the longitudinal channel and the recoil to bring spray air into the channel longitudinal when pressurized air in the chamber reverse controls the retracted position. So the air of spray comes from the control air in the recoil chamber. It is therefore not necessary to plan specific spray air source.
- the device further comprises first removable means for closing the radial orifice and second removable means for shutting off the air supply spraying, either the first means or the second removable means being put in place for choose the source of spray air.
- the removable means are typically plugs. So the same device can be used indifferently on machines with a generator spraying air or without it. Indeed, depending on the machine, just put one of the plugs and remove each other to convert the device. In one configuration, the air of spray comes from a specific source, while that in the other case, the spray air comes a transfer of control air from the recoil chamber.
- a first mode of realization of the device according to the invention comprises a body 21 extending along a main axis A, extended by a head 22.
- the head 22, fixed so removable on the body 21 by screws 20, has a distribution chamber 18 in communication with a inlet duct 30 substantially perpendicular to the axis main A.
- the distribution chamber 18 communicates also with an outlet duct 31 which is substantially coaxial with the main axis A.
- the conduit inlet 30 is intended to supply the chamber 18 with a powdery product such as glass microbeads.
- the outlet duct 31 is provided for discharging the product powder.
- a deflector 32 is fixed on the duct of outlet 31 to direct the powdery product into a desired direction.
- a base 33 mounted on the body according to the main axis A forms the connection between the distribution 18 and outlet conduit 31.
- the conduit outlet 31 is removably mounted on head 22 and it also encloses an interchangeable nozzle 19 against the base 33.
- the interchangeable nozzle 19 makes it possible to adapt the microbead flow by modifying its cross-section passage.
- a main slide 1 is slidably mounted in the body 21 along the main axis A.
- the slide main 1 has an integrated main piston 36, and sliding mounted in a main cylinder 37.
- the piston main 36 forms with main cylinder 37 a cylinder.
- Main piston 36 divides the cylinder main 37 into an opening chamber 38 located on the side of the head 22, and a closing chamber 39 located the other side of the main piston 36.
- a scraper seal 35 is carried by the body 21 at the outlet of the main piston 1 in the distribution chamber 18 and surrounds the main slide 1.
- a spring 27 is housed in the closing chamber 39 and rests on the one hand on a bearing 46 fixed on the body and on the other hand on the piston principal 36, so that it tends to bring the main slide 1 in the direction of the exit 31.
- An inner slide 4 is slidably mounted along the main axis A in the main slide 1.
- An inner piston 40 is also integrated in the inner slide and forms a cylinder with a cylinder 41 formed coaxially inside the slide principal 1.
- the piston 40 delimits a recoil chamber 42 in the cylinder 41, the recoil chamber 42 being located on the side of the head 22.
- On the other side of the piston 40 relative to the recoil chamber 42 is a advance chamber 43 which opens at the end of the main slide 1 in the closing chamber 39.
- the opening chamber 38 and the reversing chamber 42 are in communication through a communication port 14 drilled radially in the main slide 1.
- An elastic ring 52 is housed in a groove inside the main cylinder 1 for limit the stroke of the inner slide 4 by forming a stop on the inner piston 4. This elastic ring 52 is located at the edge of the advanced room.
- the closing chamber 39 is in communication with a closing hole 8 to connect a control fluid supply line, no represented.
- the opening chamber 38 is in communication with an opening 9 for connect another supply duct, no represented.
- the control fluid is preferably air but could also be a fluid hydraulic.
- the main slide 1 has one end frustoconical 2 located in the distribution chamber 18. This frustoconical end 2 is intended to come in contact with a first seat 3 of the base 33, of form also tapered.
- a sealing end 44 of the inner slide 4 carries a seal 5, by example a lip seal.
- the seal 5 is intended to form a seal by contact with a second seat 6.
- the second seat 6, shaped cylindrical, is formed in the base 33 and is coaxial with the main axis A.
- the inner slide 4 has a longitudinal channel 11 which extends right through the slider longitudinally along the main axis A.
- This channel longitudinal 11 is provided with a nozzle 12 at the end sealing 44 of the inner slide.
- This sprinkler 12 has an orifice in the direction of the outlet conduit.
- a radial orifice 23 is formed in the inner slide 4 to connect the longitudinal channel 11 and the recoil chamber 42.
- the body 21 comprises, at its end opposite to the head, the bearing 46 coaxial with the body 21 and fixed on the body, for example by screwing.
- the bearing 46 supports an adjustment screw 45.
- the axis of the adjusting screw 45 coincides with the axis main.
- the adjusting screw 45 has at its end, in the direction of the head, a face forming a stop 51 and intended to come into contact with the end of the main slide 1.
- the adjustment screw 45 is also drilled along its axis by a ball housing 10.
- the ball housing 10 has at its end, a ball seat 47.
- a ball 15 is placed in the ball housing and ball 15 is retained at the interior of the housing by a through pin 17 radially the housing.
- a ball spring 48 is disposed between the ball and the pin 17 and tends to keep the ball in abutment against the ball seat 47, towards the head 22.
- a seal is made between the ball housing 10 and a bore 49 opening at the end of the adjustment screw carrying the stop face 51.
- the inner slide 4 is also guided in bore 49. It has at its end opposite to the sealing end 44, a rod 24 intended to come push the ball against the spring 48.
- the rod 24 has a radial orifice 50 intended to put in communication the bore 49 and the longitudinal channel 11.
- inlet conduit 30 must be connected to a source which supplies the device with product powder.
- a source which supplies the device with product powder.
- This can be for example a tank containing glass microbeads and pressurized.
- the device must also be connected to conduits to supply the opening holes 9 and closing 8 in control air.
- the device can also be supplied with atomizing air.
- a supply line is connected to the screw adjustment 45 to supply the housing 10 with air pressure spraying.
- the radial orifice 23 is provided with first removable means such as a plug 16.
- Spray air can also be supplied to the channel 11 via the radial orifice 23.
- the ball housing 10 is closed by second removable means, such as a plug 25 shown in figure 2.
- pressurized air is sent to one of the opening 9 or closing holes 8 while the other orifice is vented, by a control device not shown.
- the pressure in the opening chamber 38 acts on the main piston 36 to hold the slide main 1 in open position, i.e. in abutment against the abutment forming face 51 of the screw setting 45. This pressure also goes against the action of the spring 27.
- the pressure in the recoil 42 acts on the inner piston 40 of the slide interior 4 to push back the interior slide 4 against the elastic ring 52 in a backward position. In this recoil position, the rod 24 presses on the ball 15 against ball spring 48 of such so that communication is established between the accommodation ball and bore 49.
- Spray air enters so through the ball housing 10 and goes through the orifice radial 50, bore 49, longitudinal channel 11 and is diffused by the nozzle 12, in the direction of the outlet 31. The spray air enters its movement, the microbeads contained in the distribution, and leads them to the outlet duct 31, then against the deflector 32.
- the calibration nozzle 19 determines, by its internal diameter, the flow of balls which can pass through the outlet pipe.
- Microbead flow can also be adjusted by the position of the main slide defined by the position of the adjusting screw. Indeed, according to the position of this adjusting screw, the cross section between the end of the main slide and the first seat 3, is more or less important.
- the plug 16 housed in the radial orifice 23, is removed, while second removable means forming a plug 26 are installed in the longitudinal channel 11 at the radial orifice 50 to close the channel.
- the plug 16 is used as plug 26.
- the housing of ball 10 is closed by a plug 25 ( Figure 2) fitted with a small air hole, which can be protected by a filter 28, to let in and out only the air contained in the ball housing 10.
- the spray air comes from the recoil chamber 42 passing through the hole radial 23. Even if the inner slide 4 is in recoil position, and that the ball 15 does not obstruct the air passage, air cannot escape through this orifice due to the presence of the plug 26. Thus the air taken from the recoil chamber 42 can flow into the longitudinal channel 11 for escaping through the nozzle 12. Spray air is therefore only injected when air is admitted into the reversing chamber 42, that is to say when you order the opening. So we have a simple way to configure the spray device on a machine without an air source spray.
- the device essentially differs from the first mode of realization by the fact that the nozzle is extended by a conical shape on the one hand, and on the other hand, by the causes the adjusting screw to have a stop for come into contact with the inner piston only.
- the main slide is in a open position in back stop in one position repeatable.
- only the remote position of the inner slide can be adjusted using the screw adjustment.
- the device according to the second embodiment of the invention comprises a body 121 extending along a main axis A. It has a distribution 118 in communication with a conduit input 130 substantially perpendicular to the axis main A. Distribution chamber 118 communicates also with an outlet duct 131 which is substantially coaxial with the main axis A. Un deflector 132 is fixed on the outlet duct 131 to direct the powdered product in one direction desired. A base 133 mounted on the body along the axis main A forms the connection between the distribution 118 and the outlet duct 131. The duct outlet 131 is removably mounted.
- a main slide 101 is slidably mounted in the body 121 along the main axis A.
- the slide main 101 has an integrated piston 136, and mounted sliding in a main cylinder 137.
- the piston main 136 forms with the main cylinder 137 a cylinder.
- Main piston 136 divides the cylinder main 137 in an opening chamber 138 located on the side of the outlet duct 131, and a closure 139 located on the other side of the main piston 136.
- a scraper seal 135 is carried by the body 121 at the outlet of the main piston 101 in the distribution 118 and surrounds the main slide 101.
- a spring 127 is housed in the closing chamber 139 and is supported on the one hand on a bearing 146 fixed on the body 121 and on the other hand on the piston 136, such so that it tends to bring the main slide 101 in the direction of the outlet duct 131.
- An inner slide 104 is slidably mounted along the main axis A in the main slide 101.
- a sealing end of the inner slide 104 also opens into the distribution chamber 118.
- the main slide 101 has a cavity 170 in which a second seal is housed scraper 171 for sealing between the two slides.
- An internal piston 140 is also integrated in the inner slide and forms a cylinder with a cylinder 141 arranged coaxially inside the slide main 101.
- the inner piston 140 defines a recoil chamber 142 in cylinder 141, the recoil 142 being located on the side of the outlet duct 131.
- the closing chamber 139 is in communication with a closing orifice 108 while the opening chamber 138 is in communication with an opening 109.
- the room 138 and the recoil chamber 142 are in communication through an opening channel 114 pierced radially in the main slide 101.
- a pin 161 is slidably mounted in a bore 160 made radially in the main slide 101.
- the pin 161 protrudes into a clearance 162 formed on the inner slide 104 and is held resiliently in this position by a rod 164 surrounding the main slide. Clearance is limited to direction of outlet duct 131 by a flange 163.
- the main slide 101 has one end tapered 102 located in the distribution chamber 118. This frustoconical end 102 is intended to come in contact with a first seat 103 of the base 133, also tapered shape.
- the sealing end 144 of the inner slide 104 carries a seal 105, intended to form a contact seal with a second seat 106.
- the second seat 106 of cylindrical shape, is formed in the base 133 and is coaxial with the main axis A.
- the internal slide 104 comprises, as in the first embodiment, a longitudinal channel 111, fitted with a nozzle 112 at the sealing end 144.
- This nozzle 112 has an orifice in the direction of the duct Release. It has a pointed shape that extends beyond of the sealing end 144.
- a radial opening 123 is arranged in the inner slide 104 to put in communication the longitudinal channel 111 and the chamber recoil 142. In FIG. 6, the radial orifice 123 is closed by a plug 116, to use the device with an independent source of atomizing air.
- control air as atomizing air when removing plug 116 and installing a plug to close the longitudinal channel 111.
- the body 121 At its end opposite to the outlet duct 131, the body 121 comprises the bearing 146 coaxial with the body 121 and fixed to the body, for example by screwing.
- the landing 146 supports an adjustment screw 145 whose axis is coincides with the main axis A.
- the adjustment screw 145 has at its end in the direction of the outlet 131, a face forming a stop 151 and intended for come into contact with the internal piston 136.
- the screw setting 145 has the same ball device as described previously.
- the operation of the device according to the second embodiment is similar to that according to the first embodiment.
- the main slide 101 abuts directly against bearing 146, while the piston interior 140 of interior slide 104 abuts against the face forming a stop 151.
- the pin 161, forming a stop against the collar 163, makes it possible to limit the stroke of the inner slide 104 relative to the main slide 101, especially when the inner slide moves to the position of recoil, and possibly cause the slide interior 104 when the main slide 101 is moves to the closed position.
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Abstract
Description
- un corps s'étendant le long d'un axe principal,
- une chambre de distribution logée dans le corps et destinée à recevoir le produit pulvérulent en entrée,
- un conduit de sortie coaxial à l'axe principal et en communication avec la chambre de distribution pour conduire le produit pulvérulent en sortie,
- une jonction entre la chambre de distribution et le conduit de sortie comportant un premier siège coaxial à l'axe principal,
- un coulisseau principal monté coulissant dans le corps selon l'axe principal,
- de premiers moyens de manoeuvre pour manoeuvrer le coulisseau principal entre une position d'ouverture, dans laquelle le passage entre la chambre de distribution et le conduit de sortie est ouvert, et une position de fermeture, dans laquelle une extrémité du coulisseau principal est en appui contre le premier siège pour fermer le passage entre la chambre de distribution et le conduit de sortie.
- un coulisseau intérieur monté coulissant dans le coulisseau principal de manière coaxiale,
- un deuxième siège concentrique et intérieur au premier siège,
- de deuxièmes moyens de manoeuvre du coulisseau intérieur pour manoeuvrer le coulisseau intérieur, entre une position avancée, la plus proche du conduit de sortie et une position reculée, la plus éloignée du conduit de sortie, une extrémité d'étanchéité du coulisseau intérieur étant en contact avec le deuxième siège lorsque, simultanément, le coulisseau principal est en position de fermeture et le coulisseau intérieur est en position avancée.
- un cylindre principal ménagé dans le corps de manière coaxiale à l'axe principal,
- un piston principal fixé sur le coulisseau principal pour former un vérin principal avec le cylindre principal en séparant le cylindre principal en une chambre d'ouverture et une chambre de fermeture,
- un orifice d'ouverture pour alimenter la chambre d'ouverture avec un fluide et commander ainsi le passage du coulisseau principal en position d'ouverture, et
- un orifice de fermeture pour alimenter la chambre de fermeture avec un fluide et commander ainsi le passage du coulisseau principal en position de fermeture.
- un cylindre intérieur ménagé dans le coulisseau principal de manière coaxiale à l'axe principal,
- un piston intérieur du coulisseau intérieur pour former un vérin intérieur avec le cylindre intérieur en séparant le cylindre intérieur en une chambre de recul et une chambre d'avancée, la chambre d'avancée étant en communication avec la chambre de fermeture, et
- un orifice de communication ménagé dans le coulisseau principal pour mettre en communication la chambre de recul avec l'orifice d'ouverture par l'intermédiaire de la chambre d'ouverture.
- la figure 1 représente, en coupe longitudinale, un dispositif selon un premier mode de réalisation de l'invention en position d'ouverture, configuré avec une alimentation externe d'air de fluidisation ;
- la figure 2 est une vue similaire à la figure 1, avec une configuration pour une alimentation interne de l'air de fluidisation ;
- la figure 3 est une vue similaire à la figure 1, le dispositif étant en position de fermeture ;
- la figure 4 est une vue du détail IV de la figure 3 ;
- la figure 5 représente, une vue en perspective et en coupe longitudinale du dispositif de la figure 1 ;
- la figure 6 est une vue similaire à la figure 1 d'un deuxième mode de réalisation de l'invention ;
- la figure 7 est une vue similaire à la figure 6, le dispositif étant dans une position intermédiaire ;
- la figure 8 est une vue similaire à la figure 6, le dispositif étant dans une position fermée ;
- la figure 9 une vue du détail IX de la figure 8.
Claims (11)
- Dispositif de pulvérisation d'un produit pulvérulent comportant :un corps (21, 22) s'étendant le long d'un axe principal A,une chambre de distribution (18) logée dans le corps (21) et destinée à recevoir le produit pulvérulent en entrée,un conduit de sortie (31) coaxial à l'axe principal et en communication avec la chambre de distribution (18) pour conduire le produit pulvérulent en sortie,une jonction entre la chambre de distribution (18) et le conduit de sortie (31) comportant un premier siège (3) coaxial à l'axe principal A,un coulisseau principal (1) monté coulissant dans le corps (21) selon l'axe principal A,de premiers moyens de manoeuvre (36, 37) pour manoeuvrer le coulisseau principal (1) entre une position d'ouverture, dans laquelle le passage entre la chambre de distribution (18) et le conduit de sortie (31) est ouvert, et une position de fermeture, dans laquelle une extrémité du coulisseau principal (1) est en appui contre le premier siège (3) pour fermer le passage entre la chambre de distribution (18) et le conduit de sortie (31),un coulisseau intérieur (4) monté coulissant dans le coulisseau principal (1) de manière coaxiale,un deuxième siège (6) concentrique et intérieur au premier siège (3),de deuxièmes moyens de manoeuvre (40, 41) du coulisseau intérieur (4) pour manoeuvrer le coulisseau intérieur (4), entre une position avancée, la plus proche du conduit de sortie (31) et une position reculée, la plus éloignée du conduit de sortie (31), une extrémité d'étanchéité du coulisseau intérieur (4) étant en contact avec le deuxième siège (6) lorsque, simultanément, le coulisseau principal (1) est en position de fermeture et le coulisseau intérieur (4) est en position avancée.
- Dispositif selon la revendication 1, caractérisé en ce que le coulisseau intérieur (4) comporte des moyens d'étanchéité (6) souples destinés à venir en appui contre le deuxième siège(6).
- Dispositif selon la revendication 1, caractérisé en ce qu'il comporte un système de butée réglable (45) pour positionner une butée (51, 151) définissant soit la position d'ouverture du coulisseau principal (1), soit la position de recul du coulisseau intérieur (104).
- Dispositif selon la revendication 1, caractérisé en ce que les premiers et les deuxièmes moyens de manoeuvre sont prévus pour que la position d'ouverture soit commandée en même temps que la position reculée, et que le coulisseau principal (1) passe en position de fermeture avant que le coulisseau intérieur (4) passe en position avancée.
- Dispositif selon la revendication 3, caractérisé en ce que les premiers moyens de manoeuvre comportentun cylindre principal (37) ménagé dans le corps (21) de manière coaxiale à l'axe principal A,un piston principal (36) du coulisseau principal (1) pour former un vérin principal avec le cylindre principal (37) en séparant le cylindre principal en une chambre d'ouverture (38) et une chambre de fermeture (39),un orifice d'ouverture (9) pour alimenter la chambre d'ouverture (38) avec un fluide et commander ainsi le passage du coulisseau principal (1) en position d'ouverture, etun orifice de fermeture (8) pour alimenter la chambre de fermeture (39) avec un fluide et commander ainsi le passage du coulisseau principal (1) en position de fermeture.
- Dispositif selon la revendication 5, caractérisé en ce que les deuxièmes moyens de manoeuvre comportent :un cylindre intérieur (41) ménagé dans le coulisseau principal (1) de manière coaxiale à l'axe principal A,un piston intérieur (40) du coulisseau intérieur (4) pour former un vérin intérieur avec le cylindre intérieur (41) en séparant le cylindre intérieur en une chambre de recul (42) et une chambre d'avancée (43), la chambre d'avancée (43) étant en communication avec la chambre de fermeture (39) , etun orifice de communication (14) ménagé dans le coulisseau principal (1) pour mettre en communication la chambre de recul (42) avec l'orifice d'ouverture (9) par l'intermédiaire de la chambre d'ouverture (38).
- Dispositif selon la revendication 6, caractérisé en ce qu'il comporte un ressort (27) logé dans la chambre de fermeture (39), le ressort (27) tendant à déplacer le coulisseau principal (1) vers la position de fermeture.
- Dispositif selon la revendication 3, caractérisé en ce qu'il comporte un pion (161) monté radialement dans le coulisseau principal (101) et faisant saillie dans un dégagement (162) du coulisseau intérieur (104), les bords du dégagement formant des butées pour limiter la course du coulisseau intérieur (104) par rapport au coulisseau principal (101).
- Dispositif selon la revendication 1, caractérisé en ce que le coulisseau intérieur (4) comporte un canal longitudinal (11) débouchant à l'extrémité d'étanchéité (44) pour amener de l'air de pulvérisation dans l'axe du conduit de sortie (31).
- Dispositif selon la revendication 9, caractérisé en ce que le corps (21) comporte une arrivée d'air (10) de pulvérisation, le canal longitudinal (11) débouche à l'autre extrémité du coulisseau intérieur (4), le dispositif comportant des moyens d'obturation (15, 48, 47) dont l'ouverture est commandée par le coulisseau intérieur (4) lorsque ledit coulisseau intérieur (4) est en position reculée, pour mettre en communication le canal longitudinal (11) et l'arrivée d'air de pulvérisation (10), de l'air de pulvérisation pouvant être conduit alors à travers le canal longitudinal (11).
- Dispositif selon la revendication 9, caractérisé en ce que le coulisseau intérieur (4) comporte un orifice radial (23) mettant en communication le canal longitudinal (11) et la chambre de recul (42) pour amener de l'air de pulvérisation dans le canal longitudinal (11) quand de l'air sous pression dans la chambre de recul (42) commande la position reculée.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0210266 | 2002-08-13 | ||
FR0210266A FR2843599B1 (fr) | 2002-08-13 | 2002-08-13 | Dispositif etanche avec entree d'air interne ou externe de fluidisation pour pulveriser tout type de micros bille de verre sur des bandes de signalisation avec une machine de marquage des routes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1389651A1 true EP1389651A1 (fr) | 2004-02-18 |
EP1389651B1 EP1389651B1 (fr) | 2005-06-01 |
Family
ID=30471099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030366005 Expired - Lifetime EP1389651B1 (fr) | 2002-08-13 | 2003-07-28 | Dispositif de pulvérisation de produit pulvérulent tel que des microbilles de verre |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1389651B1 (fr) |
DE (1) | DE60300758T2 (fr) |
FR (1) | FR2843599B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2425557A (en) * | 2005-04-28 | 2006-11-01 | Prismo Ltd | Distributor device for retroreflective articles |
WO2006135716A1 (fr) * | 2005-06-09 | 2006-12-21 | Potters Industries, Inc. | Appareil de distribution de spheres de marquage routier |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100984646B1 (ko) * | 2010-03-22 | 2010-10-01 | 주식회사 진산기계 | 비드분사조절기를 구비한 차선도포기 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967784A (en) * | 1975-05-16 | 1976-07-06 | Idaho Norland Corporation | Bead dispensing gun for marking pavement |
US5169262A (en) * | 1982-11-30 | 1992-12-08 | Road Construction Authority | Line marking apparatus |
-
2002
- 2002-08-13 FR FR0210266A patent/FR2843599B1/fr not_active Expired - Lifetime
-
2003
- 2003-07-28 DE DE2003600758 patent/DE60300758T2/de not_active Expired - Lifetime
- 2003-07-28 EP EP20030366005 patent/EP1389651B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967784A (en) * | 1975-05-16 | 1976-07-06 | Idaho Norland Corporation | Bead dispensing gun for marking pavement |
US5169262A (en) * | 1982-11-30 | 1992-12-08 | Road Construction Authority | Line marking apparatus |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2425557A (en) * | 2005-04-28 | 2006-11-01 | Prismo Ltd | Distributor device for retroreflective articles |
WO2006135716A1 (fr) * | 2005-06-09 | 2006-12-21 | Potters Industries, Inc. | Appareil de distribution de spheres de marquage routier |
US7429146B2 (en) | 2005-06-09 | 2008-09-30 | Potters Industries, Inc. | Highway marking sphere dispensing apparatus |
US7654770B2 (en) | 2005-06-09 | 2010-02-02 | Potters Industries Inc. | Highway marking sphere dispensing apparatus |
AU2006258036B2 (en) * | 2005-06-09 | 2010-10-14 | Potters Industries, Llc. | Highway marking sphere dispensing apparatus |
EP2597196A3 (fr) * | 2005-06-09 | 2013-11-06 | Potters Industries, LLC | Appareil de distribution des sphères de marquage routier |
Also Published As
Publication number | Publication date |
---|---|
DE60300758D1 (de) | 2005-07-07 |
EP1389651B1 (fr) | 2005-06-01 |
FR2843599B1 (fr) | 2004-10-01 |
DE60300758T2 (de) | 2006-03-23 |
FR2843599A1 (fr) | 2004-02-20 |
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