EP0338327A2 - Aérosol automatique - Google Patents

Aérosol automatique Download PDF

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Publication number
EP0338327A2
EP0338327A2 EP89106013A EP89106013A EP0338327A2 EP 0338327 A2 EP0338327 A2 EP 0338327A2 EP 89106013 A EP89106013 A EP 89106013A EP 89106013 A EP89106013 A EP 89106013A EP 0338327 A2 EP0338327 A2 EP 0338327A2
Authority
EP
European Patent Office
Prior art keywords
spray
housing
product container
pump
delivery 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.)
Withdrawn
Application number
EP89106013A
Other languages
German (de)
English (en)
Other versions
EP0338327A3 (fr
Inventor
Wolfgang Fuhrig
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.)
Oeco-Tech Entwicklung & Vertrieb Von Verpackungssystemen GmbH
Original Assignee
Oeco-Tech Entwicklung & Vertrieb Von Verpackungssystemen GmbH
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 Oeco-Tech Entwicklung & Vertrieb Von Verpackungssystemen GmbH filed Critical Oeco-Tech Entwicklung & Vertrieb Von Verpackungssystemen GmbH
Publication of EP0338327A2 publication Critical patent/EP0338327A2/fr
Publication of EP0338327A3 publication Critical patent/EP0338327A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • 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
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container

Definitions

  • the invention relates to an automatic spray can for spraying or foaming liquid products with a housing, in which an energy supply or storage device, an electric motor and a pump for generating compressed air with suction and pressure ports are arranged, one in engagement with the housing Product container, at the upper opening of a spray head with a spray nozzle is arranged, and with a connection between the pressure port of the pump and the inside of the product container.
  • An automatic spray can with the features mentioned at the outset is equipped with a diaphragm pump, the oscillatory movement of its diaphragm being obtained via the eccentric of an electric motor.
  • the electric motor is powered by a non-rechargeable battery.
  • switches and controls have already been considered how the diaphragm pump can be switched on and caused to build up pressure, after which the spray nozzle is only opened; and vice versa the spray nozzle is closed and then the diaphragm pump is only switched off.
  • a hand pump has been developed which has a housing designed as a handle and a spatially separated product container next to it, the spray head of the product container being connected to the handle via a support arm.
  • the known spray can is therefore space-consuming, cumbersome to handle and expensive to manufacture.
  • the invention has for its object to develop an automatic spray can with the features of the type mentioned, which is light in weight and small in volume and with which a constantly flowing spray of uniform particle size can be generated without aerosol propellants in practical use.
  • this object is achieved in that the product container is arranged in an extension of the housing and the pump is designed as a rotary vane pump and is arranged at the upper end of the housing. Contrary to the state of the art, the inventor takes the path of a different arrangement and use of a different pump and thus surprisingly achieves a solution that is readily accepted by the end user.
  • the housing of the new spray can can "engage" with the product container.
  • This term includes a more or less loose arrangement of the product container in the housing as well as an attachment of the product container to the housing.
  • the product container with the housing should then be considered to be in engagement if there is a frictional connection or a positive connection or a holder which was brought about, for example, by plugging or pushing.
  • the product container can be connected to the housing by clamping, screwing or a snug fit with the housing; alternatively, that the product container is inserted into an appropriately shaped space of the housing and carried there, the outer walls of the product container not having to be arranged with a snug fit in the walls of the housing.
  • the product container can protrude more or less from the top of the housing or can be accommodated in the housing completely closed by a cap.
  • a compact spray can is created according to the invention, the external dimension of which essentially corresponds to the conventional spray cans on the market. This is generally an approximately cylindrical shape.
  • the overall height of the new spray can including the product container, within an acceptable range, for example in a total height of 10 to 25 cm, despite the arrangement of the compressed air units, such as energy storage, electric motor and pump , preferably 13 to 20 cm, so that when purchasing the new automatic spray can according to the invention, the end user sees it for a conventional spray can with propellants or other devices (hand pump or the like).
  • the buyer of the new spray can is all the more pleasantly surprised when he already finds the compressed air units in the new can. On the one hand, this is achieved by arranging the product container in the extension of the housing.
  • the compressed air units inside half of the housing are arranged above or below, preferably below the product container, be it that the compressed air units plus product container are housed in an overall housing or the product container wholly or partially protrudes from the housing encompassing the compressed air units.
  • the housing has essentially the shape of a cylinder, the central axis of which coincides with the central axis of the product container after being brought together with the product container. This means that the new spray can can be made small in volume and can be handled very practically by the end user.
  • the inventor selected a rotary vane pump and thereby unexpectedly achieved the advantage of the constantly flowing spray jet, so that a spray jet with a uniform particle size can be generated if the pump is designed and dimensioned correctly.
  • the rotary vane pump is based on the displacement effect, with a continuously rotating displacer on the suction side enlarging the pump chamber and, as a result, sucking in a fluid, on the pressure side reducing the pump chamber and, as a result, conveying the fluid. It has as a kind of single-shaft pump an eccentrically located in the housing and rotating cylinder, on which moving slides are attached, which bear by spring force or the like on the housing wall, so that when rotating about the axis eccentrically to the housing, a periodic Change of space and thus promotion of the superplasticizer takes place.
  • Rotary vane pumps can also be designed as twin-shaft pumps, but this is also based on the same working principle.
  • the rotary vane pump is finally arranged at the upper end of the housing, this can drastically simplify the connection to the product container.
  • the underside of the product container with appropriate receiving devices can be plugged directly onto the pressure port of the rotary vane pump, or an air delivery line can be arranged in or next to the product container in such a way that it is only essentially the same length as the height of the product container.
  • a spray can of the type described here becomes better, lighter and more comfortable when there are few hoses, pipes, connecting nipples, valves and the like to be provided.
  • the arrangement of the pump at the upper end of the housing serves this advantage.
  • the rotary vane pump is equipped on the output side with a check valve, so that, for example, a connecting nipple of the product container, which is initially closed by a membrane, can be plugged directly onto the pressure port of the pump, so that the compressed air generated in the pump is on the bottom side in the product container is introduced and immediately builds up the pressure inside this container. If, moreover, the spray head on the top of the product container is closed and the protective or the transport cap is removed from the spray nozzle, spraying begins immediately when the pump is switched on.
  • connection between the pump and the product container is an air delivery line connecting the pressure port of the pump to the spray head, which extends over the entire length of the product container, and that it extends inside the product container a riser extends from the spray nozzle to the bottom of the container.
  • the shut-off valve of the pump is therefore first connected to the air delivery line and inserted into the spray head without a shut-off valve on the pump or on the bottom of the product container.
  • the air pressure is present in the spray head and presses on the surface of the liquid to be sprayed in the product container, which is why the riser pipe is required.
  • the overall structure of the new spray nozzle remains compact, and understandably the weight is only slightly increased by small pipes or hoses. Also the space remaining for the product container in the overall dimensions is only slightly affected by the air delivery line, so that the automatic spray can has a low weight and relatively small volume even when using the air delivery line described, with the possibility of taking advantage of the rotary vane pump and despite practical handling to produce a spray jet of uniform particle size without blowing agent.
  • the housing at least partially surrounds the product container and is preferably open at the top. It has already been stated above that the outer shape of the housing is generally cylindrical.
  • the electric motor which is preferably designed as a direct current motor
  • the energy store designed as rechargeable batteries and below the pump in an extra space which, so to speak, comprises the compressed air units.
  • This space could be delimited on one side, the lower side, by a floor and on the other side above the pump by an intermediate wall, but the intermediate wall is not absolutely necessary because the pump wall can be used instead.
  • the housing can now extend further up in a cylindrical shape and more or less completely encompass the product container.
  • the housing is pulled up to the upper edge of the product container and is open at the top. The product container can thus be inserted or lowered into the cylindrical space of the housing and is then completely surrounded by the housing.
  • the housing is shorter and only encompasses the product container to a certain fraction. If the batteries are replaced by a supply cable, the housing can be shortened further.
  • the spray head has a closure cap which can be brought into engagement with the downstream end of the air delivery line.
  • the spray head is the part that has both the spray nozzle and the upper end wall of the product container.
  • This upper end wall can be designed as a closure cap, as in the embodiment described here. These can be connected to the product container by snap or screw connections. Liquid tightness is required.
  • connection nipples or other connecting devices for lines are provided on the closure cap, for example the air delivery line or also for holding the riser pipe.
  • the closure cap can be brought into engagement with the downstream end of the air delivery line. Suitable, described below, the Air delivery line can thus be opened or closed. This has the advantage that the pump can be switched on and the spray can nevertheless only be generated after the closure cap has been actuated. In some applications or for certain target groups of consumers, such actuation may be desirable.
  • the closure cap has a closure part which can be attached to the end of the air delivery line.
  • This closure part ensures the closure of the downstream end of the air delivery line and can be operated by hand or otherwise in different ways and from different directions or at different locations on the spray head. So if the pump is switched on and the air delivery line is pressurized with compressed air, then the spray jet cannot be created by pushing the liquid out of the riser pipe until the closure part opens the end of the air delivery line so that the compressed air flow can get into the spray head.
  • the closure part provided in this connection can be designed as a pin or plug, alternatively also as a ring, collar or collar.
  • the closure cap is made of elastic plastic and is screwed onto the middle upper opening of the product container in such a way that the air delivery pipe (air delivery line) arranged centrally in this product container with the lower ring edge a collar comes into liquid-tight engagement, which protrudes downward from the central section of the closure cap towards the air delivery line.
  • this ring collar The inside of this ring collar, the outer lower end of which sits sealingly on the end of the air delivery line, is provided on the inside with a plurality of ribs such that when the end user and user press the top of the closure cap, the liquid-tight seat between the closure ring and the end the air delivery line is lifted, so that in this way, according to a first embodiment, there is an opening of the downstream end of the air delivery line.
  • the sealing ring is lifted off the air delivery line and the compressed air is now in the interior of the spray head on the liquid level of the product container. The prerequisites for the creation of the spray jet are given.
  • the closure part can also be designed as a stopper or ring and can be sealingly fitted from the inner end face of the closure cap to the downstream end of the air delivery line.
  • the closure ring is lifted from the air delivery line by turning the closure cap by means of a thread and thus also a possibility of the outflow of the Allows compressed air into the spray head.
  • Yet another embodiment of the invention is characterized in that the spray head has a hole at a distance from the spray nozzle. It has been provided here that compressed air gets into the spray head immediately after the pump is switched on, but because it has a hole, it escapes through this hole. A spray jet can therefore not yet be created. If the user closes this hole in the spray head with a finger, the compressed air acts on the liquid in the product container, the liquid product leads through the riser pipe up into the spray nozzle and spraying begins immediately. In this embodiment there is also the simplest possible way of metering. The spray will be more or less large, depending on how far the user closes the hole with his finger. If he largely closes it, the spray jet is large and vice versa.
  • the spray head with hole and spray nozzle has both the riser pipe and a connection nipple for the air delivery line. If this is preferably designed as a hose, it can be provided to pull this off the connection nipple on the spray head after emptying the product container, to unscrew the spray head from the product container and to pull it out of the product container so that the new product container can be used filled without expensive parts having the old one empty product containers would have to be thrown away.
  • the user can reuse the spray head with spray nozzle, riser pipe and connection nipple for the new product container.
  • the invention is advantageously further developed in that the hole in the spray head can be closed with an actuation lock.
  • a slidable cap is slidably seated on a cylinder shoulder, which keeps the hole on the spray head closed in one end position and keeps it open in another position. Accordingly, the spray jet is generated or not when the pump is switched on.
  • connection between housing and product container already indicated above can also be provided according to the invention in such a way that the product container is detachably connected on the bottom side to an edge section of the housing next to the pump.
  • the housing can essentially be limited to the inclusion of the compressed air units and only have a smaller edge section above the pump, in which Chen the product container is used with its bottom and adjacent edge and is fastened, for example by screws, a snug fit or snap connection, so that the entirety of the housing and product container acts firmly as a unit.
  • the air delivery line can be routed centrally inside or outside next to the product container into the interior of the spray head.
  • the air delivery line is arranged outside the product container and inside the housing.
  • the air delivery line can either be routed centrally in the product container so that it extends from the pump to the spray head within the product container and within the housing.
  • the cylindrical jacket-shaped circumference of the product container can also be provided with an elongated indentation or groove in such a way that the air delivery line is seen from above within the circular space but outside the product container. If the housing is so long that it essentially completely encompasses the product container, then the air delivery line lies inside the housing and outside the product container. It goes without saying that this condition can be more or less provided if the housing only partially encloses the product container.
  • the electric motor must be provided with a switch, especially since the energy must be used sparingly in the case of the energy store.
  • the electrical switch of the motor is attached so that it protrudes from the end of the housing. If it stands out, for example, at the bottom end of the housing, it can be provided that the pump is actuated immediately when the spray can is lifted off the respective floor.
  • an adjustable lock can also be provided here, which ensures that the switch does not come out stands, unless the lock is pushed aside.
  • the user can use a, e.g. grab the spray can with your right hand and use a finger, e.g. B. the index finger, immediately switch on the motor and the pump.
  • a finger e.g. B. the index finger
  • the energy storage device is designed as an accumulator and is connected to a charging plug which is attached to the base plate of the housing and can be connected to receiving contacts of a charging station.
  • the rechargeable battery has the advantage of recharging, which is used in a known manner in many electrical devices, in particular hand-held devices.
  • the base plate of the housing is offset inwards relative to the lower edge of the cylindrical casing and the charging station has a corresponding annular groove for receiving the lower edge and a truncated cone-shaped centering guide arranged above it.
  • the base plate of the housing is also set back relative to its lower edge, a cavity is created within the lower housing edge, in which the charging plug, whether it is designed like a pin or not, and / or the switch or other devices can be accommodated without it that they protrude beyond the overall contour of the spray nozzle.
  • movable dust protection devices For example, star-shaped slots can be punched out of a plastic disk in such a way that tabs form which, when a pin is inserted, fold down from above and pivot back into the dust protection position after the pin has been pulled out.
  • bristle-like closures such as the handbrake slot of a motor vehicle can also be provided.
  • a special embodiment of the invention has a charging station, the main plane of which is arranged approximately in the middle of an approximately cylindrical space, the annular grooves mentioned being arranged outside this support disk and the centering guide being fastened above it.
  • the receptacle contacts of the charging station are located centrally under this support plate, which has a hole in alignment with the receptacle contacts. This hole is now closed by a slide that covers this central opening for the electrical receiving contacts located below. If the lower edge of the housing is now placed in the annular groove, mechanical slides via pulling elements ensure that the spring-loaded slider is pulled out of its protective position, so that the hole is opened and the receiving contacts are exposed.
  • the automatic spray can according to the invention has a rotary vane pump which has an outer diameter of approximately 40 to 45 mm, preferably 42 mm, and a height of 15 to 20 mm, preferably 18 mm.
  • the weight of the housing with the compressed air units is particularly advantageous, i.e. without product container, full or empty, 300 to 400 g, preferably 350 g. It can be seen that such a weight of the spray can is very pleasant for the end user and promises comfortable use.
  • the automatic spray can according to the invention has a housing 1, in which 2 batteries are accommodated by clamping as an energy storage device.
  • the connection 2 ' is made by means of a wiring, not shown, for example on a circuit board, which is self-evident for the expert and therefore need not be described here. Therefore, only the electric motor 3 is shown schematically, which is fastened, for example, by screwing onto the lower base plate 4 of the housing 1 in a manner not shown in detail.
  • the motor 3 is electrically connected to the charging plug 5.
  • a rotary vane pump 6 is also mounted in the housing, the suction port of which can be seen at 7, and the pressure port of which, referring to the top of the product container 9, is designated 8.
  • the housing 1 is provided with an intermediate base 10 in addition to the base plate 4 in the lower center.
  • An inflow opening 11 in the base plate 4 ensures the supply of fresh air into the space within the space of the housing 1 comprising the compressed air units 2, 3, 6 in order to supply the suction nozzle 7 with fresh air.
  • the product container 9 is made of plastic and has the 1 a bottom 12 with a hole which is connected to an air delivery line 13 which extends over the entire length of the product container 9 and ends at the top in the spray head 14.
  • the spray head 14 is the part, optionally detachably attached to the top of the product container 9, which comprises both the spray nozzle, generally designated 15, and the top, in the embodiment of FIG. 1, the closure cap 16.
  • the housing 1 is open at the top, and the product container 9 also has an opening 18 on its upper neck 17.
  • a riser pipe 19 is connected to the spray nozzle 15 and extends to the bottom 12 of the product container 9.
  • the electrical switch 20 can also be explained with reference to FIG. 1, which is attached to the base plate 4, which is offset inwards relative to the lower edge 21 of the housing 1. Its electrical wiring is not shown. It should only be mentioned that this switch 20 projects as a pin downwards over the lower edge 21 of the housing 1, so that when the spray can is lifted off the floor, a switching function takes place, for example switching on the motor 3 to actuate the pump 6.
  • the opening 18 of the spray head 14 is shown in FIG. 2 as the opening of the neck 17 of the product container 9, because the neck 17 in the embodiment of FIG. 1 belongs to the spray head generally designated 14.
  • This opening 18 is closed by a closure cap, generally designated 16.
  • This closure cap 16 has a dome-like area at the top, to which a cylinder jacket-shaped area 22 with an internal thread 23 and sealing ring 24 adjoins at the bottom.
  • FIGS. 3 and 3A it can be seen in FIG. 2 that the neck 17 of the product container 9 has a corresponding external thread, so that the closure cap 16 can be screwed on tightly (or alternatively can also be snapped onto the neck 17 by a clamping bead ) is.
  • a ring-like Schisse chung area 25 Within the upper dome-like part of the closure cap 16 is located above a ring-like Schisse chung area 25, an actuating section 26 which the user can press from outside during use and which, due to the weakened area 25, can move downward onto the cylindrical jacket-shaped fastening part 22 of the cap 16. While the rest and sealing position of the closure cap 16 is shown in FIG. 2, one can see in FIG. 3 how the weakened area 25 with the folds assigned to it has bent by actuation and pressing down.
  • annular collar 28 in the shape of a cylinder jacket extends downward from the surface 27 of the actuating section 26 to such an extent that an annular sealing surface 29 lies sealingly on the downstream end 30 of the air delivery line 13. If, according to FIG. 2A, one looks at the ring collar 28 from below, which thus acts as a closure part, then one sees in the middle from below the actuating section 26, recognizes on the outside the ring sealing surface 29 surrounding this section and the cylinder jacket-shaped walls 28, which are evenly on the outside around the outside distributed three ribs 31 wear.
  • ribs are curved inward toward the interior of the closure part 28 with the purpose that the lower edge of the bulbous curvature begins immediately behind the annular sealing surface 29, so that when the actuating section 26 is pressed down in the direction of arrow 32, the annular collar 28 with the help of the ribs 31 is stretched.
  • FIG. 3 shows the so-called working position, namely when the user actuates the actuating section 26 in the direction of the arrow 32 downward towards the product container 9 or has pressed the air delivery line 13 out.
  • the entire ring collar 28 acting as a closure part can move downwards in the direction of arrow 32 such that the ribs 31 abut the end 30 of the air delivery line 13 with the As a result, the ribs 31 lift off the sealing ring surface 29 of the closure part 28 from the correspondingly adapted end 30 of the air delivery line 13 and, by expanding the cylindrical jacket-shaped annular collar 28, cause the ring sealing surface 29 to lift off the end 30 of the air delivery line.
  • the restoring force of the LDPE material immediately brings the actuating section 26 back up to the position shown in FIG. 2, so that the ribs 31 end 30 of the tube 13 disengage and the ring seal along the surface 29 comes into operation again.
  • FIG. 3A A similar activity takes place in the other embodiment of FIG. 3A, because there too the closure part 28 with the annular sealing surface 29 can be seen, which due to the screwing of the cap 16 onto the neck 17 of the product container 9 has a sealing effect with the downstream end 30 of the air delivery line 13 lies. If you screw the cap 16 a bit, however, then the closure part 28, which is designed as an annular collar, lifts off from the end 30 of the tube 13, and there is also a through opening for the compressed air present in the air delivery tube 13 in the sense described above.
  • FIG. 4B Another different embodiment is shown in FIG.
  • the housing 1 there is an intermediate wall 10, in which the pressure connection 8 of the rotary vane pump 6 is located on the outside near the circumference of the housing wall 1.
  • the air delivery line 13 is pushed onto the pressure port 8 and preferably remains there.
  • the product container 9 can, for example, top with a normal screw cap, which is about the shape of the Ver screw part 33 can be provided. This screw cap is removed before the full new product container is inserted, and instead the spray head, generally designated 14, is screwed onto the neck 17 of the product container by means of its screw part 33.
  • the special feature of the spray head 14 according to FIG. 4 is the arrangement of a hole 35 which the user can simply close more or less with his finger.
  • Figure 5 shows another similar embodiment in which the spray head has no hole.
  • the electric switch 20 ' is guided via a cable 37 from the lower end next to the motor 3 up to the upper end 38 of the housing 1. Therefore, the electrical switch here bears the reference number 20 'with an apostrophe.
  • the length L of the product container 9 can be seen here, the upper end of which was assumed to be a median where the neck 17 is attached.
  • the operation of this embodiment is such that the user turns on the pump 6 by actuating the switch 20 ', and since the pressure is then immediately applied to the liquid product 37, the spray jet is formed.
  • FIG. 5 shows a further embodiment, namely a charging station 39.
  • This consists of an outer wall 40 arranged in the shape of a truncated cone or in a cylinder, at the upper end of which a centering guide 41 is arranged.
  • This leads in a funnel shape down into the center of the charging station 39, where an intermediate wall 42 in the form of a support disk with a central hole 43 is located.
  • receiving contacts 44 are arranged for a coaxial cable 45, which leads to an electric charger.
  • An annular groove 46 is arranged between the centering guide 41 and the support disk 42, the diameter of which corresponds to the lower edge 21 of the housing 1.
  • the rim 21 is automatically set into the annular groove 46 by the centering guide 41, the charging plug 5 going down through the opening 43 in the support disk 42 into the receiving contacts 44 arrives. If the coaxial cable 45 is connected, the accumulator 2 can be charged in this way while the spray can is standing on the charging station 39 when not in use. When the charging current flows, the charging control 47 lights up.
  • FIG. 6 Another somewhat modified embodiment is shown in FIG. 6.
  • the housing 1 of the spray can is shorter here and essentially comprises only the accumulator 2, motor 3 and the pump 6, the pressure connection 8 of which is shown and described in a similar manner to that in FIG.
  • the housing 1 has an edge portion 48 with a bump closure 49.
  • this has a corresponding receiving groove, so that the product container is detachably connected on the bottom side to the edge portion 48 of the housing next to the pump 6 without being held by the housing 1 in its central or upper region.
  • the air delivery line 13 in the embodiment of FIG. 6 also runs outside the product container 9, as can be seen in a cross-sectional view where the The interface in FIG. 6 lies through the product container 9, as seen in FIG. 6A.
  • the air delivery line 13 is not located inside the housing 1 because this is not present in the middle and upper area of the product container 9.
  • this has a suitable, essentially over its entire length L groove 50, so that the air delivery line 13 is housed in it and the circular shape remains for the cross section of the housing or the entire spray can and not the air delivery line 13 next to the Cylinder is located outside and could interfere.
  • the spray head 14 according to FIG. 6 is again provided with the hole 35 as an actuating opening, but here ribs are provided running through the opening in such a way that they hold a central rod 51 which is actuated closure 52 is enclosed in an airtight manner, in particular with the tongue-shaped ends in its upper region.
  • the actuation lock 52 can be moved in the direction of the double arrow 54 relative to the central pin 51.
  • the hole 35 is connected to the outside atmosphere or kept closed.
  • a finger is not required to keep the hole 35 closed, but a pressure on the actuation lock 52 in the direction of the downward-pointing arrow 54 in FIG.
  • the user does not want the device to be switched by lifting the housing 1 off the floor, e.g. during and for the transport, he can move the blocking lever 58 shown in FIG. 6B, rotatable about the axis 57 in the form of a disk, from the position shown in solid lines in FIG. 6B in the direction of arrow 59 to the position shown in broken lines, whereby the switch 20 comes into the transport securing position.
  • FIG. 7 shows another embodiment of the charging station 39, but in which the same parts are provided with the same reference numbers.
  • a dust protection device in the form of a sliding cover 60 is shown here.
  • an actuating element 61 in the annular groove 46, which actuates the disc cover against the force of a rubber band 63 under the tension parts 62 Pulls hole 43 away in the direction of arrow 64, so that the condition shown with broken lines is reached.
  • FIG. 7A Another dust cover is finally shown in FIG. 7A, where it is a cover similar to the sliding cover 60 above or below the hole 43 in the form of a plastic disc 65 which is cut in a star shape in such a way that lips or tabs 66 that bend away form.
  • a supply cable can be used as an energy supply device instead of batteries, as is known many electrical devices are provided with a cable connection. This provides a direct external power supply for the electric motor. For other embodiments, however, solar cells are also thought of, with whose electrical energy the motor is supplied. Alternatively, the energy can also be supplied to the pump drive in the form of compressed air.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
EP19890106013 1988-04-19 1989-04-06 Aérosol automatique Withdrawn EP0338327A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812935 1988-04-19
DE3812935A DE3812935A1 (de) 1988-04-19 1988-04-19 Automatische spruehdose

Publications (2)

Publication Number Publication Date
EP0338327A2 true EP0338327A2 (fr) 1989-10-25
EP0338327A3 EP0338327A3 (fr) 1990-09-05

Family

ID=6352270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890106013 Withdrawn EP0338327A3 (fr) 1988-04-19 1989-04-06 Aérosol automatique

Country Status (11)

Country Link
US (1) US4972975A (fr)
EP (1) EP0338327A3 (fr)
JP (1) JPH0221957A (fr)
KR (1) KR890015785A (fr)
AU (1) AU3313489A (fr)
DE (1) DE3812935A1 (fr)
DK (1) DK185889A (fr)
FI (1) FI891841A7 (fr)
NO (1) NO891589L (fr)
NZ (1) NZ228765A (fr)
ZA (1) ZA892870B (fr)

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DE202023001094U1 (de) 2023-05-17 2023-07-25 Steffen Berg Applikationsvorrichtung mit winkelverstellbarem Adapter

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Publication number Priority date Publication date Assignee Title
DE202023001094U1 (de) 2023-05-17 2023-07-25 Steffen Berg Applikationsvorrichtung mit winkelverstellbarem Adapter

Also Published As

Publication number Publication date
AU3313489A (en) 1989-10-26
KR890015785A (ko) 1989-11-25
DK185889D0 (da) 1989-04-18
ZA892870B (en) 1989-12-27
FI891841A7 (fi) 1989-10-20
FI891841A0 (fi) 1989-04-18
EP0338327A3 (fr) 1990-09-05
US4972975A (en) 1990-11-27
DK185889A (da) 1989-10-20
DE3812935A1 (de) 1989-11-02
NZ228765A (en) 1990-09-26
NO891589D0 (no) 1989-04-18
JPH0221957A (ja) 1990-01-24
NO891589L (no) 1989-10-20

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