EP0365753B1 - Mécanisme de pulvérisation pour flacons pulvérisateur - Google Patents

Mécanisme de pulvérisation pour flacons pulvérisateur Download PDF

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Publication number
EP0365753B1
EP0365753B1 EP89112334A EP89112334A EP0365753B1 EP 0365753 B1 EP0365753 B1 EP 0365753B1 EP 89112334 A EP89112334 A EP 89112334A EP 89112334 A EP89112334 A EP 89112334A EP 0365753 B1 EP0365753 B1 EP 0365753B1
Authority
EP
European Patent Office
Prior art keywords
eccentric
spray mechanism
mechanism according
pump
slider
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
EP89112334A
Other languages
German (de)
English (en)
Other versions
EP0365753A3 (en
EP0365753A2 (fr
Inventor
Erich Wunsch
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19883836291 external-priority patent/DE3836291A1/de
Application filed by Individual filed Critical Individual
Priority to AT89112334T priority Critical patent/ATE99193T1/de
Publication of EP0365753A2 publication Critical patent/EP0365753A2/fr
Publication of EP0365753A3 publication Critical patent/EP0365753A3/de
Application granted granted Critical
Publication of EP0365753B1 publication Critical patent/EP0365753B1/fr
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
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric

Definitions

  • the invention relates to a spray mechanism for the atomization of liquids by means of a hydraulically acting pump, the pump piston of which is under the action of a return spring.
  • Spray systems are already generally known and commercially available, in which hydraulically acting pumps that are mechanically actuated by finger pressure are used for the fine atomization of liquids in spray bottles or spray cans.
  • a disadvantage of these known systems is that the spraying process only begins when the liquid pressure generated in the chamber of the pump is sufficiently high and, for example, exceeds a value of about 6 to 8 bar. The spraying process is interrupted as soon as the pressure in the pump chamber falls below the minimum. As a result, an uninterrupted spray does not come out of the atomizing nozzle, although the operator continuously operates the operating button.
  • the inventive features ensure that damaging environmental pollution is avoided by the new spray mechanism, because no propellant gas is used to apply the spray liquid.
  • the drive by means of a geared motor and an eccentric, which is carried along by one or more wrap springs has the advantage that a continuous spray jet is generated for the user of the spray can when the switch is actuated. This happens because the eccentric bushing is pressed down as soon as the eccentric used has exceeded the highest point in the slide.
  • the wrap spring opens while the motor output shaft of the gear motor continues to rotate evenly.
  • the eccentric overtakes the motor output shaft by opening the wrap spring, so that the pumping process starts again immediately and without noticeable interruption. This means that the eccentric moves almost half a turn downwards after the highest point in the slide has been exceeded.
  • liquid media and also foams of different composition and for different purposes can be sprayed easily and simply, for example in cosmetics, in medicine or in the household as well as in industry.
  • the advance eccentric 2 overtakes the motor output shaft 5 over an angle of rotation of at least 120 ° after the highest point has been exceeded, the continuous rotation of the motor output shaft 5 being taken into account.
  • the geared motor 6 can also be arranged vertically and thus be axially parallel to the pump 1.
  • a worm or bevel gear drive 7 is then used on the transmission side.
  • the advantage of actuation via a geared motor 6 and an eccentric 2, which is carried by a wrap spring 3, is that the eccentric drive bushing 14 is pressed down by opening the wrap spring 3 while the motor output shaft 5 continues to rotate in accordance with the power of the geared motor 6.
  • the wrap spring 3 is always opened when the eccentric 2 has exceeded the highest point of the slide 4 during its axial upward and downward movement.
  • the eccentric 2 overtakes the motor output shaft 5, so that the pumping process, that is to say the squeezing out of the liquid 8 from the spray bottle 9 via the suction line 10 and pressure line 11 and the atomizing nozzle 12, begins again immediately. A waiting time up to half a turn of the eccentric 2 is therefore not necessary.
  • the wrap spring drive consequently enables uniform spraying of a spray liquid, as is generally carried out with propellant gas.
  • FIG. 1 also shows that the switch 15 for switching on the geared motor 6 also actuates an air valve 16 at the same time. This allows air to flow into the liquid space 17 of the spray bottle 9 in the ratio of the liquid 8 removed. The entire container must also be absolutely tight so that the liquid 8 does not escape from the liquid space 17 if there is a possible negative pressure, for example in airplanes can.
  • the air valve 16 can be opened by the switch 15 either before the electrical switch is closed or at the same time as the gear motor 6 is switched on.
  • the atomizing nozzle 12 is advantageously in the middle.
  • the pressure and suction sides of the two pumps 1 are connected to one another.
  • the drive takes place again via a geared motor 6, which is fed by a battery 18.
  • the two pumps 1, 1 ' are arranged side by side and switched so that they still have a minimum piston stroke for spraying when the pistons 19, 19' are in the middle position and the simultaneous zero position of a double slide 21.
  • the drive can again be carried out with a wrap spring 3, but the time saved with this double unit is of course somewhat less than with the drive with two pumps.
  • the acceleration of the eccentric 2 only a rotation angle of about 120 ° can be obtained.
  • a battery-powered geared motor 6 can be assumed, the motor output shaft 5 of which drives an eccentric 2 via an eccentric drive pin 28.
  • the motor output shaft 5 according to FIGS. 1 and 2 is under the action of a wrap spring 3.
  • the eccentric 2 drives by means of an eccentric output bush 14 in the slot 13 the slide 21, which in turn engages with a guide web 30 in a guide groove 29 of the pump receptacle housing 27.
  • the guide web 30 extends at right angles to the slot 13 of the slide 21.
  • the movement of the eccentric output bush 14 in the slot 13 causes the slide 21 to move back and forth in the guide groove 29. This connects the slide 21 to the pistons 19, 19 '.
  • each piston 19, 19 ' still has a distance of 50% for the suction or pressure output of the associated pump 1, 1'.
  • the spray can 9 can be formed as a one-piece container or, according to FIG. 6, a housing 31 for the spray mechanism and have a receptacle 33 for the spray liquid 8 connected to it by means of a screw closure 32.
  • a screw closure 32 instead of the screw cap 32, other detachable connection types are also possible.
  • the housing 31 has a side opening 34 with a cover 35 for the use or replacement of a battery 36.
  • This battery 36 is connected on the one hand to the geared motor 6 and on the other hand to an electrical switch 15 by lines (not shown).
  • a plunger 37 is attached to the electrical switch 15, which plunges against a spring-loaded air valve 38, which is inserted into an air tube 39 with a very small cross section of approximately 2 to 5 millimeters.
  • the air pipe 39 extends into the receptacle 33 of the spray liquid 8.
  • a reduction gear 40 is connected to the electric motor 6 and drives an eccentric 2 on the output side.
  • the drive is carried out by an output shaft 5, which is encased by a wrap spring 3, which engages the sleeve 41 of the eccentric 2 for rotary driving.
  • the eccentric output bush 14 is connected to a slide 4 or 21, which in turn connects to the piston 19 or 19 'of the piston pump 1 or 1'.
  • the piston pump 1 or 1 ' has a suction tube 10 projecting into the receptacle 33 and in the opposite direction a pressure tube 42 which opens into an atomizer nozzle 12 on the upper part of the housing 31.
  • the pressure pipe 42 is provided on the way from the pump 1 to the atomizer nozzle 12 with a helical spiral of at least 180 °. As a result, a long lever arm is achieved with only a slight deflection of the pressure tube 42 during the axial piston movements of the pump 1 or 1 '.
  • Figure 7 shows one more in the perspective view as a 360 ° coiled pressure pipe 42.
  • Figures 8 and 9 show a highly simplified representation of a piston pump 1 with a lower connector 43 for the suction pipe 10 and an upper connector 44 and 45 for the pressure pipe 42.
  • the connector 44 encases the piston 19 and 19 'and is around 90th ° angled.
  • On the top 46 of the connector 44 is a bolt or wheel 47, which is brought by a bolt 48 in an up and down movement corresponding to the movement of the eccentric 2, whereby the piston 19 and 19 'is finally caused to a synchronous movement .
  • the coil of the pressure tube 42 allows 200 to 300 strokes per minute of the pump pistons 19, 19 'without causing damage to the pressure tube 42, which can be made of metal or plastic.
  • the arrangement of the air valve 38 on the switch 15 creates a relatively long air pipe 39 in which there is air. This air column prevents air from escaping even when the spray can is moved into the horizontal position, as a result of which the air supply is always guaranteed to compensate for the spray liquid removed.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Claims (13)

  1. Mécanisme de pulvérisation, pour pulvériser finement des liquides au moyen d'une pompe à action hydraulique, dont le piston est soumis à l'action d'un ressort de rappel (22), caractérisé en ce que la pompe (1,1') est entraînée électriquement au moyen d'un motoréducteur (6), ou d'un moteur à réducteur accolé, l'arbre de sotie moteur (5) présentant un excentrique (2) placé sous l'effet d'un ressort à enroulement (3) relié à l'arbre de sortie moteur (5) et couplé à un poussoir (4, 21) relié en entraînement au piston (19, 19') de la pompe (1, 1').
  2. Mécanisme de pulvérisation selon la revendication 1, caractérisé en ce que le ressort à enroulement (3) est relié à un excentrique (2), de manière que, après avoir passé le point mort haut du poussoir (4, 21), il s'ouvre avec rotation simultanée de l'arbre de sortie moteur (5), faisant que l'excentrique (2) tourne brièvement plus rapidement que l'arbre de sortie moteur (5) et que la douille entraînée d'excentrique (14) déplace le poussoir (4, 21), pendant cette phase, à une vitesse plus élevée, vers le bas, à la position initiale du piston (19, 19').
  3. Mécanisme de pulvérisation selon les revendications 1 ou 2, caractérisé en ce que le ressort à enroulement (3) s'ouvre après un angle de rotation d'à peu près 15° après le point mort haut du poussoir (4, 21).
  4. Mécanisme de pulvérisation selon les revendications 1 à 3, caractérisé en ce que l'excentrique (2) se déplace en anticipant la rotation de l'arbre de sortie muteur (5) d'un angle d'au moins 120°.
  5. Mécanisme de pulvérisation selon les revendications 1 à 4, caractérisé en ce que sont prévues deux pompes (1, 1'), dont les côtés refoulement et aspiration sont chacun reliés l'un à l'autre et en ce que les deux pompes (1, 1') sont raccordées à un moto-réducteur (6) assurant un entraînement électrique, dont l'arbre de sortie moteur (5) présente un excentrique (2), placé sous l'effet d'un ressort à enroulement (3) relié à l'arbre de sortie moteur (5) et couplé à un poussoir (21) relié en entraînement en permanence, par chacune de ses extrémités diamétralement opposées dans la direction de déplacement, à un piston (19, 19') des pompes (1, 1') correspondantes.
  6. Mécanisme de pulvérisation selon les revendications 1 à 5, caractérisé en ce que le tige d'entraînement d'excentrique (28) entraîne un excentrique (2), dont la douille entraînée d'excentrique (14) s'engage dans une fente (13) du poussoir (21), décalée de 90° par rapport à l'orientation d'une nervure de guidage (30) du poussoir (21), coopérant avec une rainure de guidage (29) ménagée dans le carter de logement de pompe (27).
  7. Mécanisme de pulvérisation selon les revendications 5 et 6, caractérisé en ce que le poussoir (21) avec les pistons (19, 19') des pompes (1, 1') est relié de manière que les pistons (19, 19') Soient en position médiane l'un par rapport à l'autre lorsque le poussoir (4, 21) est en position zéro, faisant qu'à partir de la position médiane, chaque piston (19, 19') dispose toujours, en fonctionnement continu, de 50 % de la course de la phase d'aspiration ou de refoulement des pompes (1, 1').
  8. Mécanisme de pulvérisation selon les revendications 1 à 7, caractérisé en ce que le motoréducteur (6) est relié à un interrupteur d'actionnement (15), couplé simultanément à une soupape d'air (16) et laissant s'écouler de l'air dans le récipient de pulvérisation (9), en cas d'actionnement par interrupteur et de prélèvement de liquide hors du récipient de pulvérisation (9).
  9. Mécanisme de pulvérisation sel on la revendication 8, caractérisé en ce que l'interrupteur d'actionnement (15) agit sur un poussoir (37) est relié fonctionnellement à une soupape d'air (38), insérée dans l'interrupteur (15), d'un tube d'air (39).
  10. Mécanisme de pulvérisation selon les revendications 8 et 9, caractérisé en ce que le tube d'air (39) présente un diamètre d'à peu près deux à cinq millimètres.
  11. Mécanisme de pulvérisation selon la revendication 5, caractérisé en ce que le côté refoulement de la pompe (1, 1') présente un tube de pression enroulé en hélice sur le trajet allant à la buse de pulvérisateur (12).
  12. Mécanisme de pulvérisation selon la revendication 11, caractérisé en ce que l'enroulement du tube de refoulement (42) fait un angle d'au moins 180°.
  13. Mécanisme de pulvérisation selon l'une ou plusieurs des revendications précitées, caractérisé en ce que le piston (19, 19') de la pompe (1, 1') est entraîné à volonté au moyen d'une roue excentrique (47) ou d'un levier (49) placé sous l'action de la roue excentrique (47).
EP89112334A 1988-10-25 1989-07-06 Mécanisme de pulvérisation pour flacons pulvérisateur Expired - Lifetime EP0365753B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89112334T ATE99193T1 (de) 1988-10-25 1989-07-06 Spraymechanismus fuer sprayflaschen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836291 1988-10-25
DE19883836291 DE3836291A1 (de) 1988-09-01 1988-10-25 Spraymechanismus fuer sprayflaschen

Publications (3)

Publication Number Publication Date
EP0365753A2 EP0365753A2 (fr) 1990-05-02
EP0365753A3 EP0365753A3 (en) 1990-10-03
EP0365753B1 true EP0365753B1 (fr) 1993-12-29

Family

ID=6365863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112334A Expired - Lifetime EP0365753B1 (fr) 1988-10-25 1989-07-06 Mécanisme de pulvérisation pour flacons pulvérisateur

Country Status (4)

Country Link
EP (1) EP0365753B1 (fr)
JP (1) JPH02191565A (fr)
AT (1) ATE99193T1 (fr)
DE (1) DE58906563D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729117A1 (de) 1997-07-08 1999-01-21 Erich Wunsch Spraymechanismus für Dosier-Sprayflaschen
US6502766B1 (en) 2000-07-24 2003-01-07 The Procter & Gamble Company Liquid sprayers
US6752330B2 (en) 2000-07-24 2004-06-22 The Procter & Gamble Company Liquid sprayers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176840A (en) * 1967-04-14 1970-01-07 Chow Kwok Yung Improvements in or relating to Reciprocating Pump Spraying Devices.
US3768732A (en) * 1972-02-22 1973-10-30 Curtis Dyna Corp Intermittent liquid metering system and apparatus
US3934428A (en) * 1974-05-10 1976-01-27 Itt Industries, Inc. Flexible coupling
US4586593A (en) * 1982-06-07 1986-05-06 Danelson Terry L Drive assembly

Also Published As

Publication number Publication date
JPH02191565A (ja) 1990-07-27
ATE99193T1 (de) 1994-01-15
EP0365753A3 (en) 1990-10-03
DE58906563D1 (de) 1994-02-10
EP0365753A2 (fr) 1990-05-02

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