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EP0693438B1 - Spray cap for an aerosol container - Google Patents

Spray cap for an aerosol container Download PDF

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Publication number
EP0693438B1
EP0693438B1 EP95110681A EP95110681A EP0693438B1 EP 0693438 B1 EP0693438 B1 EP 0693438B1 EP 95110681 A EP95110681 A EP 95110681A EP 95110681 A EP95110681 A EP 95110681A EP 0693438 B1 EP0693438 B1 EP 0693438B1
Authority
EP
European Patent Office
Prior art keywords
fluid
tube
sprayhead
spray head
channel
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
EP95110681A
Other languages
German (de)
French (fr)
Other versions
EP0693438A1 (en
Inventor
Adalberto Geier
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.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
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 Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP0693438A1 publication Critical patent/EP0693438A1/en
Application granted granted Critical
Publication of EP0693438B1 publication Critical patent/EP0693438B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/20—Actuator caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/22—Actuating means with means to disable actuation
    • B65D83/224—Tamper-indicating means obstructing initial actuation
    • B65D83/228—Tamper-indicating means obstructing initial actuation consisting of a rupturable connection between actuator element and actuator cap or skirt, e.g. tear strips or bridges

Definitions

  • the invention relates to a spray head for a container for a pressurized fluid, according to the preamble of the claim.
  • Such a spray head is known from WO 86/01787.
  • the known construction is characterized in that the Wall thickness of the funnel-shaped or trumpet-shaped extension the end facing the dispensing tube in the spray head located and delimiting the fluid channel essentially constant, albeit less than the wall thickness of the mentioned tube is. It has been shown that this is constructive Formation of the tube forming the fluid channel leads to thermal stresses.
  • the object of the present invention is accordingly based on a spray head of the known type improve that accumulations of material to form the trumpet or funnel-shaped extension on the delivery tube facing end of the located in the spray head and the tube delimiting the fluid channel and thereby conditional thermal stresses are avoided.
  • the essence of the invention is So that the wall thickness of the funnel-like or trumpet-like Enlargement towards the free edge decreases continuously, and starting from a minimal wall thickness for the Tubes forming fluid channel in the spray head. This will accumulate material to form the trumpet or funnel-shaped Expansion avoided.
  • the minimal use of materials in the area of the spray head connection also allows small Spray times. Thermal stresses are also avoided.
  • the spray heads shown in FIGS. 1 and 2 differ essentially only in the external Design as well as the length and diameter ratios a spray channel formed in the spray head. Accordingly refer to the reference numerals used below both embodiments of spray heads, each with the Reference number 10 are marked.
  • These spray heads serve for dispensing a fluid under pressure, in particular a pressurized liquid or paste or The like from a container that is not shown in FIGS. 1 and 2 is shown.
  • the spray head becomes free End of a delivery tube having a discharge channel a dispensing, in particular aerosol valve, arranged.
  • Dispensing tubes with an associated valve are also not shown, since it is a known in this regard Construction is concerned.
  • the spray head has a spray nozzle 11 on the one trained in the spray head 10 and above already mentioned fluid channel 12 with the discharge channel of the Dispensing tube, not shown, is fluidly connectable.
  • the spray head 10 is connected to that of the spray nozzle 11 opposite end 13 of the fluid channel 12 to the free End of the dispensing tube can be plugged on, under Production of a fluid-tight to the environment Fluid connection between that formed in the spray head 10 Fluid channel 12 and the discharge channel of the delivery tube.
  • That is the Dispensing tube facing end 13 of the spray head 10th trained fluid channel 12 funnel-shaped or trumpet-shaped expanded. This allows misalignment between the Dispensing tube and the associated end of the im Spray head 10 trained fluid channel 12 when attaching the Correct the spray head 10 on the dispensing tube.
  • the wall thickness of the funnel or trumpet-like extension 14 towards the free edge 15 continuously, starting from a minimal Wall thickness for the fluid channel 12. So it is for training the funnel-shaped or trumpet-shaped extension 14 is not required that the fluid channel have a wall thickness, the maximum radial extent of the funnel or trumpet-shaped extension 14 corresponds.
  • This constructive embodiment is favorable for low Injection times when manufacturing the spray head using the plastic injection molding process. Due to minimal material accumulation in the Dispensing tube connection area of the spray head can be adjusted achieve a correspondingly short cooling time for each shot, whereby the cycle time or spraying time is reduced accordingly can be. Also step through the aforementioned measures no thermal stress in the connection area of the Spray head.
  • the fluid channel 12 including the spray nozzle 11 is formed in the actuation button 16, which on spray nozzle end integrally connected to the cap 18 is.
  • the spray head 10 overall with the delivery tube, not shown emotional. This spray head therefore does not contain a separate one Button.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

Die Erfindung betrifft einen Sprühkopf für einen Behälter für ein unter Druck stehendes Fluid, gemäß dem Oberbegriff des Patentanspruches.The invention relates to a spray head for a container for a pressurized fluid, according to the preamble of the claim.

Ein deartiger Sprühkopf ist aus der WO 86/01787 bekannt. Die bekannte Konstruktion zeichnet sich dadurch aus, daß die Wandsärke der trichter- bzw. trompetenförmigen Erweiterung an den dem Abgaberöhrchen zugewandten Ende des sich im Sprühkopf befindlichen und den Fluidkanal begrenzenden Röhrchens im wesentlichen konstant, wenn auch geringer als die Wandstärke des erwähnten Röhrchens ist. Es hat sich gezeigt, daß diese konstruktive Ausbildung des den Fluidkanal bildenden Röhrchens zu thermischen Spannungen führt.Such a spray head is known from WO 86/01787. The known construction is characterized in that the Wall thickness of the funnel-shaped or trumpet-shaped extension the end facing the dispensing tube in the spray head located and delimiting the fluid channel essentially constant, albeit less than the wall thickness of the mentioned tube is. It has been shown that this is constructive Formation of the tube forming the fluid channel leads to thermal stresses.

Dementsprechend liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Sprühkopf der bekannten Art dahingehend zu verbessern, daß Materialansammlungen zur Ausbildung der trompeten- oder trichterförmigen Erweiterung an den dem Abgaberöhrchen zugewandten Ende des sich im Sprühkopf befindlichen und den Fluidkanal begrenzenden Röhrchens sowie dadurch bedingte thermische Spannungen vermieden sind.The object of the present invention is accordingly based on a spray head of the known type improve that accumulations of material to form the trumpet or funnel-shaped extension on the delivery tube facing end of the located in the spray head and the tube delimiting the fluid channel and thereby conditional thermal stresses are avoided.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentsanspruches gelöst. Kern der Erfindung ist also, daß die Wandstärke der trichter- bzw. trompetenartigen Erweiterung zum freien Rand hin kontinuierlich abnimmt, und zwar ausgehend von einer minimalen Wandstärke für das den Fluidkanal im Sprühkopf bildende Röhrchen. Dadurch werden Materialansammlungen zur Ausbildung der trompeten- oder trichterförmigen Erweiterung vermieden. Der minimale Materialeinsatz im Bereich des Sprühkopf-Anschlusses erlaubt auch geringe Spritzzeiten. Thermische Spannungen werden ebenfalls vermieden.This object is achieved by the characterizing Features of the patent claim solved. The essence of the invention is So that the wall thickness of the funnel-like or trumpet-like Enlargement towards the free edge decreases continuously, and starting from a minimal wall thickness for the Tubes forming fluid channel in the spray head. This will accumulate material to form the trumpet or funnel-shaped Expansion avoided. The minimal use of materials in the area of the spray head connection also allows small Spray times. Thermal stresses are also avoided.

Nachstehend werden zwei Ausführungsformen von erfindungsgemäß ausgebildeten Sprühköpfen anhand der beigefügten Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine erste Ausführungsform eines erfindungsgemäß ausgebildeten Sprühkopfes im Längsschnitt; und
Fig. 2
eine zweite Ausführungsform eines erfindungsgemäß ausgebildeten Sprühkopfes im Längsschnitt.
Two embodiments of spray heads designed according to the invention are explained in more detail below with reference to the attached drawing. Show it:
Fig. 1
a first embodiment of a spray head designed according to the invention in longitudinal section; and
Fig. 2
a second embodiment of a spray head designed according to the invention in longitudinal section.

Die in den Fig. 1 und 2 dargestellten Sprühköpfe unterscheiden sich im wesentlichen nur durch das äußere Design sowie durch die Längen- und Durchmesserverhältnisse eines im Sprühkopf ausgebildeten Sprühkanals. Dementsprechend beziehen sich die nachstehend verwendeten Bezugsziffern auf beide Ausführungsformen von Sprühköpfen, die jeweils mit der Bezugsziffer 10 gekennzeichnet sind. Diese Sprühköpfe dienen zur Abgabe eines unter Druck stehenden Fluids, insbesondere einer unter Druck stehenden Flüssigkeit oder Paste oder dergleichen aus einem Behälter, der in den Fig. 1 und 2 nicht dargestellt ist. Zu diesem Zweck wird der Sprühkopf am freien Ende eines einen Austragskanal aufweisenden Abgaberöhrchens eines Abgabe-, insbesondere Aerosol-Ventils, angeordnet. Abgaberöhrchen mit zugeordnetem Ventil sind ebenfalls nicht dargestellt, da es sich diesbezüglich um eine bekannte Konstruktion handelt. Der Sprühkopf weist eine Sprühdüse 11 auf, die über einen im Sprühkopf 10 ausgebildeten und oben bereits erwähnten Fluidkanal 12 mit dem Austragskanal des nicht dargestellten Abgaberöhrchens fluidverbindbar ist. Zu diesem Zweck ist der Sprühkopf 10 mit dem der Sprühdüse 11 entgegengesetzten Ende 13 des Fluidkanals 12 auf das freie Ende des Abgaberöhrchens aufsteckbar, und zwar unter Herstellung einer gegenüber dem Umgebung fluiddichten Fluidverbindung zwischen dem im Sprühkopf 10 ausgebildeten Fluidkanal 12 und dem Austragskanal des Abgaberöhrchens. Wie die Fig. 1 und 2 sehr gut erkennen lassen, ist das dem Abgaberöhrchen zugewandte Ende 13 des im Sprühkopf 10 ausgebildeten Fluidkanals 12 trichter- oder trompetenförmig erweitert. Damit lassen sich Fluchtungsfehler zwischen dem Abgaberöhrchen und dem diesem zugeordneten Ende des im Sprühkopf 10 ausgebildeten Fluidkanals 12 beim Aufstecken des Sprühkopfes 10 auf das Abgaberöhrchen korrigieren.The spray heads shown in FIGS. 1 and 2 differ essentially only in the external Design as well as the length and diameter ratios a spray channel formed in the spray head. Accordingly refer to the reference numerals used below both embodiments of spray heads, each with the Reference number 10 are marked. These spray heads serve for dispensing a fluid under pressure, in particular a pressurized liquid or paste or The like from a container that is not shown in FIGS. 1 and 2 is shown. For this purpose the spray head becomes free End of a delivery tube having a discharge channel a dispensing, in particular aerosol valve, arranged. Dispensing tubes with an associated valve are also not shown, since it is a known in this regard Construction is concerned. The spray head has a spray nozzle 11 on the one trained in the spray head 10 and above already mentioned fluid channel 12 with the discharge channel of the Dispensing tube, not shown, is fluidly connectable. To For this purpose, the spray head 10 is connected to that of the spray nozzle 11 opposite end 13 of the fluid channel 12 to the free End of the dispensing tube can be plugged on, under Production of a fluid-tight to the environment Fluid connection between that formed in the spray head 10 Fluid channel 12 and the discharge channel of the delivery tube. How 1 and 2 can be seen very well, that is the Dispensing tube facing end 13 of the spray head 10th trained fluid channel 12 funnel-shaped or trumpet-shaped expanded. This allows misalignment between the Dispensing tube and the associated end of the im Spray head 10 trained fluid channel 12 when attaching the Correct the spray head 10 on the dispensing tube.

Bei beiden Ausführungsformen, die in den Fig. 1 und 2 dargestellt sind, nimmt die Wandstärke der trichter- bzw. trompetenartigen Erweiterung 14 zum freien Rand 15 hin kontinuierlich ab, und zwar ausgehend von einer minimalen Wandstärke für den Fluidkanal 12. Damit ist es zur Ausbildung der trichter- bzw. trompetenförmigen Erweiterung 14 nicht erforderlich, daß der Fluidkanal eine Wandstärke aufweist, die der maximalen radialen Erstreckung der trichter- bzw. trompetenförmigen Erweiterung 14 entspricht. Diese konstruktive Ausführungsform ist günstig für geringe Spritzzeiten bei Herstellung des Sprühkopfes im Kunststoff-Spritzgußverfahren. Durch minimale Materialansammlung im Abgaberöhrchen-Anschlußbereich des Sprühkopfes läßt sich nach jedem Schuß eine entsprechend geringe Kühlzeit erreichen, wodurch die Taktzeit bzw. Spritzzeit entsprechend reduziert werden kann. Auch treten durch die vorgenannten Maßnahmen keine thermischen Spannungen im Anschlußbereich des Sprühkopfes auf.In both embodiments shown in FIGS. 1 and 2 are shown, the wall thickness of the funnel or trumpet-like extension 14 towards the free edge 15 continuously, starting from a minimal Wall thickness for the fluid channel 12. So it is for training the funnel-shaped or trumpet-shaped extension 14 is not required that the fluid channel have a wall thickness, the maximum radial extent of the funnel or trumpet-shaped extension 14 corresponds. This constructive embodiment is favorable for low Injection times when manufacturing the spray head using the plastic injection molding process. Due to minimal material accumulation in the Dispensing tube connection area of the spray head can be adjusted achieve a correspondingly short cooling time for each shot, whereby the cycle time or spraying time is reduced accordingly can be. Also step through the aforementioned measures no thermal stress in the connection area of the Spray head.

Der Sprühkopf gemäß Fig. 2 unterscheidet sich von demjenigen nach Fig. 1 auch noch dadurch, daß er eine integrierte Betätigungstaste 16 aufweist, die über Sollbruchstege 17 mit einer kappenartigen Abdeckung 18 verbunden ist. Diese Sollbruchstege 17 dienen als Garantie für eine Erstbenutzung des Sprühkopfes und damit des mit einem solchen Sprühkopf versehenen Behälters. Der Fluidkanal 12 samt Sprühdüse 11 ist in der Betätigungstaste 16 ausgebildet, die am sprühdüsenseitigen Ende integral mit der Kappe 18 verbunden ist.2 differs from that 1 also in that it has an integrated Has actuation button 16, the predetermined breaking webs 17 with a cap-like cover 18 is connected. This Breakaway webs 17 serve as a guarantee for initial use of the spray head and thus that with such a spray head provided container. The fluid channel 12 including the spray nozzle 11 is formed in the actuation button 16, which on spray nozzle end integrally connected to the cap 18 is.

Bei der Ausführungsform nach Fig. 1 wird der Sprühkopf 10 insgesamt mit dem nicht näher dargestellten Abgaberöhrchen bewegt. Dieser Sprühkopf enthält also keine gesonderte Betätigungstaste.In the embodiment according to FIG. 1, the spray head 10 overall with the delivery tube, not shown emotional. This spray head therefore does not contain a separate one Button.

Claims (1)

  1. Sprayhead for a pressurised fluid container, configured at the free end of a dispensing tube, which includes a release channel, of a dispensing valve, in particular an aerosol valve, and comprising a spray nozzle (11) which is fluid-linked to the release channel of the dispensing tube via a fluid channel (12) established in the sprayhead (10) by means of a tube, and for this purpose the sprayhead (10) is pushed on with the end (13) of the fluid channel (12) opposite the spray nozzle (11) onto the free end of the dispensing tube whilst establishing an environmentally fluid-tight fluid connection between the fluid channel (12) formed in the sprayhead (10) and the release channel of the dispensing tube, and the end (13) of the tube (12) arranged in the sprayhead (10) facing towards the dispensing tube is expanded in the shape of a funnel or trumpet, characterised in that the wall thickness of the funnel- or trumpetshaped expansion (14) decreases continuously towards the free edge (15), i.e. commencing from a minimum wall thickness for the tube which forms the fluid channel (12) in the sprayhead (10).
EP95110681A 1994-07-22 1995-07-07 Spray cap for an aerosol container Expired - Lifetime EP0693438B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4426120A DE4426120A1 (en) 1994-07-22 1994-07-22 Spray head for a container for a pressurized fluid
DE4426120 1994-07-22

Publications (2)

Publication Number Publication Date
EP0693438A1 EP0693438A1 (en) 1996-01-24
EP0693438B1 true EP0693438B1 (en) 1999-10-13

Family

ID=6523958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110681A Expired - Lifetime EP0693438B1 (en) 1994-07-22 1995-07-07 Spray cap for an aerosol container

Country Status (3)

Country Link
EP (1) EP0693438B1 (en)
DE (2) DE4426120A1 (en)
ES (1) ES2139784T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933311A1 (en) * 1998-01-28 1999-08-04 The Procter & Gamble Company Blocking nozzle for a pressurised container
DE19813078A1 (en) * 1998-03-25 1999-09-30 Pfeiffer Erich Gmbh & Co Kg Media dispenser and method of making a dispenser
USD509136S1 (en) 2003-08-04 2005-09-06 Peter J. Walters Actuator
CA3181311A1 (en) * 2020-06-18 2021-12-23 John W. Freudenberg Aerosol actuator

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273610A (en) * 1966-09-20 Valved pressurized fluid dispensing receptacle with receptacle-attached fitting
GB1256001A (en) * 1968-06-20 1971-12-08 Johnson & Son Inc S C Overcap for pressurized dispensing containers
FR2527562A1 (en) * 1982-05-28 1983-12-02 Precision Valve Italia Pressurised container actuator cap - has pushbutton nozzle housing head valve rod and is inoperational until broken free
AU4955385A (en) * 1984-09-22 1986-04-08 Doherty Patrick John Pressurised container button assembly
FR2571312B1 (en) * 1984-10-04 1987-04-24 Sico VULCANIZATION PRODUCT DEVICE FOR THE REPAIR OF TIRES FOR BIKES, MOTORCYCLES AND MOTOR VEHICLES
DE8708036U1 (en) * 1987-06-05 1987-08-27 Haarkosmetik Und Parfuemerien Gmbh, 7500 Karlsruhe Cap for pressure cans
FR2617809B1 (en) * 1987-07-06 1990-02-02 Oreal CONTAINER FOR THE PACKAGING OF A PRODUCT AND ITS DISTRIBUTION UNDER GOOD CONDITIONS OF CLEANLINESS
NL8900729A (en) * 1989-03-23 1990-10-16 Airspray Int Bv NOZZLE HEAD FOR A SPRAY CAN.
DE3931679A1 (en) * 1989-03-24 1990-09-27 Praezisions Ventil Gmbh SPRAY HEAD FOR A SPRAY CONTAINER FOR DISPENSING FOAM
FR2674774B1 (en) * 1991-04-08 1993-07-16 Oreal DEVICE FOR SPRAYING A LIQUID COMPRISING A PRESSURIZED CONTAINER PROVIDED WITH AN ADDITIONAL GAS TAKE VALVE.
DE4224910C2 (en) * 1992-07-28 1994-06-16 Perfect Ventil Gmbh Foam head
FR2697812B1 (en) * 1992-11-06 1994-12-16 Reboul Smt Push-dispenser for aerosol packaging.
DE4239847A1 (en) * 1992-11-27 1994-06-01 Lindal Gmbh Aerosol Tech Valve assembly for aerosol spray cans - has rotatable spray head on hollow shaft with interacting flow sections to adjust spray flow according to rotary position.
DE9404018U1 (en) * 1994-03-10 1994-09-01 Beisert Heinz Cosmetic spray container

Also Published As

Publication number Publication date
DE4426120A1 (en) 1996-01-25
ES2139784T3 (en) 2000-02-16
EP0693438A1 (en) 1996-01-24
DE59507029D1 (en) 1999-11-18

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