EP0535499B1 - Sprühvorrichtung - Google Patents

Sprühvorrichtung Download PDF

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Publication number
EP0535499B1
EP0535499B1 EP92116138A EP92116138A EP0535499B1 EP 0535499 B1 EP0535499 B1 EP 0535499B1 EP 92116138 A EP92116138 A EP 92116138A EP 92116138 A EP92116138 A EP 92116138A EP 0535499 B1 EP0535499 B1 EP 0535499B1
Authority
EP
European Patent Office
Prior art keywords
pressure
spray device
chamber
spray
pressure chamber
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.)
Expired - Lifetime
Application number
EP92116138A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0535499A1 (de
Inventor
Manuel Czech
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.)
JOACHIM CZECH VERMOEGENSVERWALTUNGS KG
Original Assignee
JOACHIM CZECH VERMOEGENSVERWALTUNGS KG
JOACHIM CZECH VERMOEGENSVERWAL
Joachim Czech Vermogensverwaltungs KG
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 JOACHIM CZECH VERMOEGENSVERWALTUNGS KG, JOACHIM CZECH VERMOEGENSVERWAL, Joachim Czech Vermogensverwaltungs KG filed Critical JOACHIM CZECH VERMOEGENSVERWALTUNGS KG
Publication of EP0535499A1 publication Critical patent/EP0535499A1/de
Application granted granted Critical
Publication of EP0535499B1 publication Critical patent/EP0535499B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • B05B9/0883—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber having a discharge device fixed to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • the present invention relates to a spray device according to the preamble of claim 1.
  • Spray devices are known, in particular for spraying liquid material which is arranged in a material container.
  • the spray device here has a pressure chamber from which the material is received.
  • a spray head with a dispensing valve is provided for spraying the material.
  • blowing agents such as CFC blowing agents, which are particularly harmful to the environment, are known to be used to generate a pressure in the pressure chamber.
  • a sprayer known from FR-A 24 12 353 corresponding to the preamble of claim 1 comprises a container for receiving a pressure chamber in which material to be sprayed is contained.
  • the pressure chamber is designed to be variable in volume.
  • the pressure chamber is connected to a spray head with a dispensing valve.
  • the pressure chamber is connected to an actuating device for increasing the volume thereof. With the increase in volume, the material to be sprayed is simultaneously sucked into the pressure chamber from a storage chamber.
  • the actuator includes an end cap located on the chamber floor, secured with a ring gear which in turn drives a pinion that winds a rope attached to one end of the chamber floor.
  • the present invention has for its object to provide a safe-working spray device, with which a reliable dispensing of the material is made possible while avoiding additional propellants.
  • the winding spool can be set in rotation by means of a drive spool connected to it and a pull cord is wound around the drive spool, one end of which is fixed to the drive spool and the other end of which can be gripped from the outside.
  • the drive spool can be rotated together with the winding spool by tightening the pull cord and the actuating cord is wound around the winding spool, whereby the chamber bottom is moved.
  • the end of the pull cord wound around the drive spool is connected to a gripping device, in particular a ball.
  • the winding coil and the drive coil are formed in one piece and preferably as an injection molded part.
  • the diameter of the drive spool is larger than the diameter of the winding spool for easy power transmission of the tensile force to the actuating cord.
  • the pull cord is advantageously returned from the unwound state to the wound state, this being done with a return device arranged for this purpose, which rotates the drive spool to wind the cord.
  • a return device arranged for this purpose, which rotates the drive spool to wind the cord.
  • the return device it is designed as a spiral spring. The inner end of the coil spring engages the coil axis and the outer end is attached to a pin fixed in the housing.
  • a resetting device is provided as the pressurizing device, which in a simple embodiment is designed as a helical spring which is arranged between the bottom of the material container and the chamber bottom of the pressure chamber.
  • the pressure chamber is cylindrical in a simple design, so that a particularly simple tubular structure results.
  • a bellows for receiving the material to be dispensed is arranged between the chamber bottom and the inside of the pressure chamber. This bellows can correspond to the movement of the chamber bottom of the pressure chamber connected to it be expanded or compressed. This results in the advantages that no high requirements are placed on the seal of the chamber bottom with respect to the pressure chamber wall, which could lead to premature wear and failure of the spray device. Furthermore, a possible sticking of material to the inner walls of the pressure chamber is avoided, so that a corresponding movement of the chamber bottom is always ensured.
  • the pressure chamber In order to load the pressure chamber in a simple manner or to dispense the sucked-in material again, the pressure chamber has on its upper end face an opening which serves both for the inlet and for the outlet of the material.
  • the suction line and the discharge channel are designed such that the suction line opens into the discharge channel and the material is sucked in via a section of the discharge channel and the material is discharged over the entire discharge channel.
  • the material is sucked into the pressure chamber by increasing the volume of the pressure chamber, as a result of which a negative pressure is created in the pressure chamber, which leads to the material being sucked in.
  • an increased internal pressure compared to the environment is necessary to dispense the material, otherwise the material cannot be sprayed out.
  • the pressure in the pressure chamber drops. In order to prevent the pressure from becoming too low, so that spraying of the material is no longer ensured, a device is therefore provided which can close the dispensing channel, so that no material is dispensed despite the manual actuation of the dispensing valve and the user is caused to the actuator actuate.
  • this pressure control device is designed as a plunger protruding from the chamber bottom, which comes into contact with the discharge opening of the pressure chamber when the volume of the pressure chamber decreases and thus closes the pressure chamber.
  • a pressure control spray head is used as the spray head, which is already available in a commercially available form, so that further constructive efforts are not necessary.
  • the spray head is also arranged in a lid of the material container.
  • the cover and thus the spray head can be removed with it, for example unscrewed, so that material can be refilled when the material container is empty, after which the material container is closed again by means of the cover and at the same time the spray head is reconnected to the dispensing channel.
  • the spray head can be designed as such a pressure control spray head, which has a pressure-dependent closing element for shutting off the dispensing channel.
  • the closing member of the pressure control spray head can be, for example, a piston, the position of which depends on the internal pressure and which closes the dispensing channel at a certain low internal pressure.
  • the chamber bottom can be designed as a sealing piston.
  • the resetting device can be designed as a rubber sleeve, which is arranged within the pumping chamber and forms the inner peripheral wall thereof, the rubber sleeve being firmly connected to the chamber bottom.
  • the extended rubber sleeve acts as a reset device.
  • a pressure compensation device is provided between the interior of the material container and the surroundings of the spray device.
  • the pressure compensation device is designed as a pressure-dependent sealing lip.
  • the spray device 1 has a material container 3 which has a substantially cylindrical shape.
  • the material container 3 has an upper opening 5 which can be closed by means of a lid 7.
  • the connection between the upper opening 5 of the material container 3 and the cover 7 can take place, for example, via a corresponding internal or external thread 8 and 9.
  • the material container 3 has a container base 11 which closes the material container 3.
  • a cylindrical tube 13 extends from the container base 11 and is preferably formed in one piece with the container base.
  • a pressure chamber designed as a pump chamber 15 is arranged in the upper region of the cylindrical tube 13.
  • the pump chamber 15 is delimited at the lower end by a chamber floor 17 and has a chamber cover 18 at the upper end.
  • the chamber cover 18 has an opening 19 that leads to it serves to let sucked material into the pump chamber 15 or to let it out of the pump chamber 15 when dispensing
  • a bellows 21 is provided in the pump chamber, which is firmly connected to the chamber base 17 on the one hand and is clamped at the upper end between a peripheral wall 23 projecting downward from the chamber cover 18 and the inner wall of the cylindrical tube 13. This creates a pumping chamber for the material.
  • the chamber cover 18 is also provided with an outlet channel 25 which extends upwards from the opening 19.
  • a suction line 27 opens laterally into the discharge channel 25.
  • the suction line 27 has a downwardly projecting connection piece 28, to which a suction pipe 29 is connected, the suction pipe 29 extending parallel to the cylindrical pipe 13, and a suction opening 30 which is arranged in the vicinity of the container bottom 11. This ensures that almost all of the material in the material container 3 can be sucked off.
  • the space surrounding the cylindrical tube 13 up to the container wall serves as a storage chamber 16 for the material.
  • the chamber cover 18, the discharge channel 25 and a connecting piece 26 for receiving the suction line 27 are formed in one piece, in particular as an injection molded part.
  • a reset valve 31 is provided in the suction line 27, which only allows passage in the direction of the opening 19, but blocks the suction line 27 when the material moves in the opposite direction. This prevents the material from flowing back into the storage chamber 16.
  • a return device 33 is provided in the cylindrical tube 13, which is designed in the form of a helical spring 34.
  • the chamber floor 17 is moved downward. This is done by means of an actuating device 35.
  • the actuating device 35 has an actuating cord 37, which engages on a pin-like attachment 38 projecting downward on the chamber base 17.
  • the actuating cord 37 extends through an opening 39 in the container bottom 11 into a housing 41.
  • a double bobbin (42) is provided in the housing and has a winding coil 43 and a drive coil 45.
  • Winding spool 43 and drive spool 45 are designed as a one-piece element, preferably an injection molded part.
  • the coil former 42 is rotatably mounted in a corresponding holder 47. On this holder 47 there is a projecting pin 49 and in the area of the bearing of the coil body 42 there is a pin 51 which rotates with the coil body 42.
  • a pull cord 53 is wound around the drive spool 45.
  • One end 55 of the pull cord is fixed in the drive spool 45, while the other end extends through an opening to the outside of the housing.
  • the end 57 of the pull cord 53 is connected to a gripping device 59, which in the exemplary embodiment shown is designed as a ball 60.
  • any configuration is conceivable, such as a loop at the end 57 or a plate, etc.
  • the actuating device 35 has a return device 61 which is designed in the form of a spiral spring 62.
  • the inner end of the coil spring is secured in position in the slotted pin 51, while the outer end of the coil spring 62 is turned over and forms an eyelet 63 which is placed around the pin 49.
  • the drive spool 45 moves in the direction of the arrow 46, as a result of which the actuating cord 37 is wound onto the winding spool 43. It is thereby achieved that the actuating cord 37 pulls the chamber bottom 17 downward, thereby enlarging the pump chamber 15 accordingly. Due to the volume increase of the pump chamber, a negative pressure is created therein, so that due to the pressure difference between the storage chamber 16 and the pump chamber 15, the material in the storage chamber 16 is sucked into the suction pipe 29 via the suction opening 30 and into the pump chamber via the suction line 27 and the opening 19 flows.
  • the length of the pull cord 53 is dimensioned such that when the pull cord is completely pulled out, the chamber bottom 17 is at its lowest point and the return device 33 experiences maximum compression from the coil spring 34.
  • a plunger 65 is provided in the pump chamber 15 starting from the chamber bottom 17 and has a conically tapering upper tip 66. With a corresponding output of material, the pump chamber 15 shrinks again, the conical one then Tip 66 comes into contact with the opening 19 and closes it.
  • an opening 67 is provided at the upper end of the discharge channel 25, into which the tip of a valve arrangement 69 penetrates, the opening 67 essentially sealingly enclosing a tip 70, which in turn has a channel.
  • the valve assembly 69 may be of a conventional type and will be described in more detail below with reference to FIG. 11.
  • valve arrangement 69 is arranged in a spray head, preferably a pressure control spray head 71, which in turn is arranged in the cover 7, so that it can be fitted and removed with the cover 7.
  • the pressure control spray head is of conventional design and is operated manually to dispense the material.
  • the cylindrical tube 13 is formed in one piece with the bottom 11 of the material container 3.
  • Lugs 73 are provided to secure the position of the chamber cover 18, corresponding openings being provided in the chamber cover 18 into which the lugs 73 can snap.
  • FIG. 5 and 6 show a schematic representation of two operating positions of the spray device.
  • FIG. 5 shows the filled bellows 21 with the tensioned spring 34
  • FIG. 6 shows the relaxed spring 34 and the compressed bellows 21.
  • FIG. 7 shows an alternative embodiment of the configuration of the pump chamber 15.
  • a piston 73 is used, which is arranged in the pump chamber 15 so as to be slidable.
  • the piston 73 On its upper side facing the pump chamber 15, the piston 73 has a sealing collar 75 which seals the space above it from the piston 73.
  • FIG. 8 shows a further alternative embodiment of the spray device with a rubber sleeve 77, which is connected to the chamber bottom 17 and extends essentially along the inner wall of the cylindrical tube 13. If the chamber bottom 17 is lowered in the direction of the arrow 78, the rubber sleeve expands and thus generates a counter pressure or pull on the chamber bottom 17 in accordance with its expansion, which in turn exerts pressure on the material accumulated in the pump chamber 15. The rubber sleeve 77 thus forms the corresponding reset device 33.
  • FIG. 9 schematically shows a conventional pressure control spray head as used in the spray device according to the invention.
  • FIG. 10 is also a schematic illustration of a spray head similar to the illustration of FIG. 9.
  • the pressure control spray head 71 has a double piston 79 which has two pistons 80 and 81, which are in turn held apart by a rod 82.
  • the piston rod 82 leaves a space in the piston opening, which is in connection with a Inlet opening 83 through which the material flows into the room.
  • the double piston 79 is acted upon on one side by a force which acts in one direction via a helical spring 85.
  • the piston space 86 has a diameter-increasing shoulder 87, through which an opening 89 is formed, through which the material can flow.
  • the size of the opening 89 depends on the piston position of the piston 81, which in turn depends on the internal pressure exerted by the material.
  • the opening 89 increases, so that essentially the same amount of material leaves through the opening 89.
  • the spring 85 continues to move the double piston 79 until the right piston 81 closes the outlet opening or the spray opening 91. This ensures that a sufficient internal pressure is ensured when the material is dispensed, and if the internal pressure in the material is no longer sufficient for a proper spray effect, then no spraying process can be carried out.
  • FIG. 11 shows a conventional valve arrangement 69, as can be used in the spray device according to the invention. Since this valve arrangement 69 is a conventional valve arrangement which is known to the person skilled in the art, a detailed description is omitted.
  • the valve arrangement 69 has an inlet channel 93 and an outlet channel 95, a connection between the inlet channel 93 and the outlet channel 95 being actuated by the Valve stem 97 is performed, thereby opening a hole 98 which makes the connection. In the unloaded state, the valve arrangement 69 closes and thus acts as a check valve during the suction process.
  • the drive coil is moved back against the direction of the arrow 46 due to the spiral spring 62 and the pull cord 53 is wound up again. Due to the check valve 31, the material in the pump chamber 15 is no longer able to flow back into the suction line 27. Thus, with the spray head still closed, the chamber bottom 17 remains in its lower position, since the material is a generally incompressible medium. Only when appropriate amounts of the material have been dispensed does the chamber bottom 17 move up again and take the actuating cord with it again.
  • a locking device as described with reference to FIGS. 9 and 10, can also be provided in the spray head.
  • the storage chamber 16 can be connected to a refill container (not shown) via an adapter line. This is particularly the case with large consumers, e.g. in the hairdressing industry, an advantage because the spray device can be reused, which both helps to reduce costs, but which is also beneficial for environmental reasons.
  • the spray device according to the invention creates a simple and effective spray device with which a reliable spray result is ensured.
  • a pressure equalization between the storage chamber and the surroundings of the spray device can be achieved in many ways.
  • targeted leakage or a corresponding opening in the container wall can be provided.
  • a pressure-dependent sealing lip (not shown) is preferably provided, which opens at a corresponding pressure difference between the pressure in the storage chamber 16 and the ambient pressure in order to carry out a corresponding pressure compensation.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Massaging Devices (AREA)
  • Noodles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Polarising Elements (AREA)
  • Soil Working Implements (AREA)
EP92116138A 1991-10-04 1992-09-21 Sprühvorrichtung Expired - Lifetime EP0535499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9112386U DE9112386U1 (da) 1991-10-04 1991-10-04
DE9112386U 1991-10-04

Publications (2)

Publication Number Publication Date
EP0535499A1 EP0535499A1 (de) 1993-04-07
EP0535499B1 true EP0535499B1 (de) 1996-01-17

Family

ID=6871947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116138A Expired - Lifetime EP0535499B1 (de) 1991-10-04 1992-09-21 Sprühvorrichtung

Country Status (14)

Country Link
US (1) US5285966A (da)
EP (1) EP0535499B1 (da)
JP (1) JPH05319465A (da)
KR (1) KR930007514A (da)
AT (1) ATE133093T1 (da)
AU (1) AU659496B2 (da)
BR (1) BR9203872A (da)
CA (1) CA2079747A1 (da)
DE (2) DE9112386U1 (da)
DK (1) DK0535499T3 (da)
ES (1) ES2086036T3 (da)
GR (1) GR3019610T3 (da)
TW (1) TW213434B (da)
ZA (1) ZA927634B (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348198A (en) * 1992-08-24 1994-09-20 Omnific International Ltd. Refillable aerosol container
US5638986A (en) * 1992-11-06 1997-06-17 Fluilogic Systems Oy Method and equipment for dosing small amounts of liquid quantitatively
DE29916197U1 (de) * 1999-09-15 2000-03-23 Ristau Harald Schraub- und dübellose Befestigung in Form eines Vakuumsystems mit integrierter Gerätehalterung
US6126043A (en) * 1999-09-24 2000-10-03 Albert, Ii; William D. Reusable portable pressurized fluid container
US6299024B1 (en) 2000-07-05 2001-10-09 Robert E. Corba Valve assembly for dispensing container
US6325248B1 (en) 2000-07-05 2001-12-04 Robert E. Corba Container assembly
GB0213781D0 (en) * 2002-06-14 2002-07-24 Unilever Plc Domestic spraying device
FR2859601B1 (fr) * 2003-09-16 2008-05-09 Solvay Suspension aqueuse parasiticide
GB201013849D0 (en) * 2010-08-18 2010-09-29 Pa Knowledge Ltd Spray device
CN113230791A (zh) * 2021-05-29 2021-08-10 徐江楠 一种公路施工用洒水降尘装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042981A (en) * 1959-06-23 1962-07-10 Dilione Rocco Atomizer
US3114483A (en) * 1960-11-25 1963-12-17 Uni Valve Corp Dispenser valve
FR1362475A (fr) * 1963-03-04 1964-06-05 Evor Soc Perfectionnement aux appareils distributeurs de doses volumétriques définies par une capacité déformable
DE1475174A1 (de) * 1965-09-20 1969-01-16 Afa Corp Fluessigkeitssprayvorrichtung
FR1503684A (fr) * 1966-10-10 1967-12-01 Idees Perfectionnements aux appareils distributeurs de doses volumétriques définies par une capacité de volume variable
US3520452A (en) * 1968-11-29 1970-07-14 Afa Corp Leakproof container seal
GB1379182A (en) * 1971-06-10 1975-01-02 Yoshino Kogyosho Co Ltd Spraying device
US3799448A (en) * 1972-04-15 1974-03-26 Yoshino Kogyosho Co Ltd Liquid spraying device
US3792800A (en) * 1972-07-06 1974-02-19 N Capra Liquid dispenser
US3848808A (en) * 1973-05-31 1974-11-19 Wham O Mfg Co Water squirt toy with protective sleeve
US4155485A (en) * 1975-07-21 1979-05-22 Spatz Corporation Pump devices for dispensing fluids
US4182496A (en) * 1977-12-16 1980-01-08 Ethyl Products Company Actuator button for fluid dispenser
FR2412353A1 (fr) * 1977-12-23 1979-07-20 Staar Sa Dispositif debiteur de liquide sous pression
US4410107A (en) * 1981-12-18 1983-10-18 Corsette Douglas Frank Liquid dispensing pump
CS242610B1 (en) * 1982-11-19 1986-05-15 Miloslav Sorm Double acting mechanical pump for liquid spray
US4527437A (en) * 1983-07-06 1985-07-09 Wescor, Inc. Pipette controller
AU564065B2 (en) * 1984-06-04 1987-07-30 Douglas F. Corsette Dispenser pump
CH662629A5 (fr) * 1984-12-28 1987-10-15 Paul Comment Reducteur-regulateur de pression pour la distribution d'un produit gazeux, liquide, visqueux, pulverulent ou pateux.
DE3733523A1 (de) * 1987-10-03 1989-05-03 Neumann Wolfgang N Treibgasfreie spruehdose mit mechanischem energiespeicher
US5199614A (en) * 1991-08-08 1993-04-06 Lincoln Grease gun auto-pull follower apparatus

Also Published As

Publication number Publication date
ZA927634B (en) 1993-04-30
JPH05319465A (ja) 1993-12-03
ATE133093T1 (de) 1996-02-15
EP0535499A1 (de) 1993-04-07
US5285966A (en) 1994-02-15
DK0535499T3 (da) 1996-06-03
DE9112386U1 (da) 1991-11-28
GR3019610T3 (en) 1996-07-31
AU2616992A (en) 1993-04-08
DE59205089D1 (de) 1996-02-29
CA2079747A1 (en) 1993-04-05
KR930007514A (ko) 1993-05-20
AU659496B2 (en) 1995-05-18
BR9203872A (pt) 1993-04-27
TW213434B (da) 1993-09-21
ES2086036T3 (es) 1996-06-16

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