EP2998241A1 - Fixation d'une soupape dans la coupelle d'un récipient aérosol - Google Patents

Fixation d'une soupape dans la coupelle d'un récipient aérosol Download PDF

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Publication number
EP2998241A1
EP2998241A1 EP14185411.7A EP14185411A EP2998241A1 EP 2998241 A1 EP2998241 A1 EP 2998241A1 EP 14185411 A EP14185411 A EP 14185411A EP 2998241 A1 EP2998241 A1 EP 2998241A1
Authority
EP
European Patent Office
Prior art keywords
valve
container
collar
aerosol container
container according
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Withdrawn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
EP14185411.7A
Other languages
German (de)
English (en)
Inventor
Walter Franz
Kerstin Seling
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.)
Thomas GmbH
Original Assignee
Thomas 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 Thomas GmbH filed Critical Thomas GmbH
Priority to EP14185411.7A priority Critical patent/EP2998241A1/fr
Publication of EP2998241A1 publication Critical patent/EP2998241A1/fr
Withdrawn legal-status Critical Current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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body

Definitions

  • the invention relates to an aerosol container, on whose container opening a valve disk is tightly fastened with a dispensing valve, wherein the valve disk consists of plastic and has a disk surface with a tappet opening for a valve stem of the dispensing valve.
  • An aerosol container with the described features is made DE 38 07 156 A1 known.
  • the valve plate and the valve housing of the dispensing valve are integrally molded from plastic.
  • the aerosol container is also made of plastic and is welded to the valve plate.
  • Aerosol containers made of metal, in particular of tinplate or aluminum, are widespread in practice.
  • the valve disk is produced as a stamped / bent part made of tinplate or a sheet made of an aluminum alloy and connected by sheet metal forming form-fitting with the aerosol container.
  • the disk surface of the valve disk is formed as a dome, which forms a receiving space for the valve housing of the dispensing valve.
  • the valve housing, a valve element with a stem and a seal are inserted into the dome and fixed by crimping inside the dome. This creates a positive connection between the valve housing and the valve disk by crimping.
  • An aerosol container with a metallic valve disk and a dispensing valve attached thereto by crimping is for example out DE 20 38 580 A and FR 2 925 032 A known.
  • Aerosol containers are made in practice in labor-sharing processes, the container, the valve plate and the dispensing valve are often manufactured by different companies.
  • the dispensing valve is in different structural configurations with a large variety of designs to produce different spray patterns, the selection being made application-oriented.
  • the valve housing of the dispensing valves have mostly similar and sometimes standardized dimensions. They usually have a head with a front-side seal, which can be inserted into a receiving space formed as a dome of the valve disk.
  • the invention has the object, an aerosol container with the features described above in such a way that the existing plastic valve disk can be equipped with a separately produced dispensing valve.
  • the valve disk should optionally be connectable to a metallic aerosol container or an aerosol container made of plastic. Both the connection of the valve disk with the aerosol container and the loading of the valve disk with a dispensing valve should be easy to assemble.
  • the valve plate of the aerosol container is made of plastic and has a plate surface with a plunger opening for a valve element of the dispensing valve.
  • fingers are formed on the underside of the plate surface, which have radially inwardly directed projections at their free end.
  • the dispensing valve has a valve housing, which engages in a space bounded by the fingers of the valve disk receiving space, wherein the projections of the fingers engage behind an axial counter surface of the valve housing and press the valve housing against a valve disposed between the valve housing and the valve plate seal.
  • the seal is, for example, a sealing ring which is attached to an end face of the valve housing can be pre-assembled.
  • the seal may alternatively consist of a sealing component which is integrally formed on the valve disc.
  • the fingers of the valve disk formed on the underside are essentially stressed only in tension. Since the fingers must be designed mainly for a uniaxial tensile stress, the fingers can be made slim and with a relatively small wall thickness and are also subject to no significant restrictions in terms of their length.
  • the predetermined by the position of the inwardly directed projections clamping length for the valve housing can be adjusted to the dimensions of the valve housing so that the valve housing rests against the frontal seal with a sufficiently large sealing force.
  • the fingers of the valve disk are designed as resilient locking elements and cooperate with an annular collar surface on the valve housing.
  • the dispensing valve is inserted by means of a translational movement in the space bounded by the fingers receiving space until the fingers engage the collar surface of the valve housing.
  • the valve housing prefferably has segment-shaped projections which form a bayonet closure with the projections of the fingers.
  • the bayonet closure is a positive connection, which is generated by a translational movement in conjunction with a rotary movement.
  • the axial assembly movement is executed until the valve housing reaches a stop, for example, the plate surface of the valve housing.
  • the valve housing is rotated by a rotational movement until the segment-shaped projections on the valve housing engage behind the inwardly directed projections at the free ends of the fingers.
  • the rotational movement can be combined with an axial adjusting movement, which presses the valve housing against the seal with a defined force.
  • the fingers are expediently on a cylindrical peripheral surface of the valve housing, so that the valve housing is secured against transverse movement.
  • four fingers are provided according to a preferred embodiment of the invention on the valve disc, which surround the valve housing.
  • the plate surface of the valve disk preferably has stiffening ribs.
  • the number, geometry and orientation of the stiffening ribs is chosen so that the plate surface receives sufficient dimensional stability to absorb the axial forces generated by the pressure within the aerosol container and occur both during assembly of the dispensing valve and during filling of the aerosol container can.
  • the stiffening ribs may in particular be aligned radially to the plunger opening.
  • the valve disk can be inexpensively manufactured as a plastic injection molded part. It consists in particular of a fiber-reinforced plastic, but can also be made of a plastic without fiber reinforcement and used.
  • plastic thermoplastic polymers in particular polyethylene terephthalate (PTE), polyamides (PA), polyethylenes
  • valve plate may have molded gasket components, which consist for example of a thermoplastic elastomer, silicone rubber or rubber.
  • the plate surface is curved outwardly.
  • the shaping of the plate surface according to the invention contributes to the fact that the valve disk can be produced with a low use of material.
  • the valve disk further expediently has a collar, which rests against a container inner surface bounding the container opening and is supported axially on the container wall. Through the collar of the valve plate is centered within the container opening.
  • the axial support facilitates u.a. a positioning of the valve disk in the course of the assembly process.
  • the aerosol container may be made of metal or plastic. In the case of a metal container this is suitably connected by sheet metal form-fitting manner with the valve disk. If the valve disk is intended for a positive connection with a metal container, the valve disk expediently has a collar with at least one radial rib, wherein the rib is beaded by the metal jacket of the container and wherein a seal is clamped between the collar and the metal jacket of the container ,
  • valve plate can be welded or glued to the plastic container.
  • hot forming the valve disk By hot forming the valve disk, a positive connection with the container edge can be generated.
  • To connect valve plate and a plastic container by hot caulking.
  • a non-detachable screw or a plug connection using a multi-part clamping device is suitable. Structural embodiments for connecting the valve disk with a container made of plastic or metal are described in the claims 12 to 18 and explained below with reference to exemplary embodiments.
  • Fig. 1 an aerosol container 1 is shown, on whose container opening a valve plate 2 is tightly secured with a dispensing valve 3.
  • the valve plate 2 is made of plastic and has a plate surface 4 with a plunger opening 5 for a valve element of the dispensing valve 3.
  • the valve element is also referred to as Stem.
  • fingers 6 are formed, which have radially inwardly directed projections 7 at its free end.
  • the dispensing valve 3 has a valve housing 8, which engages in a limited by the fingers 6 of the valve plate 2 receiving space, wherein the projections 7 of the fingers 6 an axial counter-surface 9 of the valve housing. 8 behind and press the valve housing 8 against an arranged between the valve housing 8 and the valve plate 2 seal 10.
  • the fingers are designed as resilient latching elements and cooperate with an annular collar surface on the valve housing 8.
  • the fingers 6 abut against a cylindrical peripheral surface or annular collar surfaces 11 of the valve housing 8 ( Fig. 10 ).
  • Fig. 1 in conjunction with the Fig. 2a to 2c shows that four fingers 6 are provided for fastening the valve housing 8, which surround the valve housing 8 at equidistant intervals.
  • the plate surface 4 of the valve plate 2 has stiffening ribs 12, which are aligned radially to the plunger opening 5.
  • the stiffening ribs 12 are arranged on the underside of the plate surface.
  • the stiffening ribs 12 can also be arranged on the upper side of the plate surface 4 or both on the upper side and on the lower side of the plate surface 4.
  • the stiffening ribs 12 give the valve disk 2 sufficient dimensional stability for receiving the container internal pressure and for absorbing axial forces which may occur during assembly of the dispensing valve 3 on the valve disk 2 and during the filling of the aerosol container in a bottling plant.
  • valve plate 2 has a collar 13 which abuts a container opening defining the container inner surface and is axially supported on the container wall.
  • the disc surface of the valve disc is curved outward.
  • the valve disk 2 consists of a fiber-reinforced plastic. Suitable plastics are, for example, polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polyamide (PA) and polybutylene terephthalate (PBT), wherein the fiber content may be 30 to 40 wt .-%. Depending on the requirement profile, unreinforced plastics can also be used.
  • the valve disk 2 is preferably produced as an injection molded part.
  • the aerosol container 1, hereinafter also referred to as container for short, can be made of metal or plastic.
  • This in Fig. 3 illustrated embodiment shows a container 1 made of metal, which is positively connected by sheet metal forming with the valve plate 2.
  • the valve plate 2 has a collar 14 with two radial ribs 15, 15 ', wherein a rib 15 is beaded by the metal jacket of the container 1 and between the collar 14 and the metal jacket of the container 1, a seal 16 is clamped.
  • the container 1 is made of plastic and has a mouthpiece 17 which engages in an annular groove 18 of the valve disk 2 and rests against a seal 19 arranged in the annular groove 18.
  • the seal 19 may be inserted as a separate sealing ring in the annular groove or consist of a sealing component which is integrally formed on the valve plate 2 or injected into the annular groove 18 prior to assembly and cured chemically, thermally or with special light .
  • the annular groove 18 is bounded by a voltage applied to the container inner wall collar 20 of the valve disc 2 and an outer leg 21.
  • the outer leg 21 has a profile generated by hot forming, which engages around the mouthpiece 17 of the container 1 in a form-fitting manner.
  • the aerosol container 1 is also made of plastic.
  • the valve plate 2 has a collar 22 which is connected by staking with a mouthpiece 23 of the container 1 by hot staking.
  • a seal 24 is arranged between the collar 22 of the valve disc 2 and the wall surface of the container 1.
  • This seal 24 may be formed as a sealing ring.
  • the seal 24 can in particular also consist of a thermoplastic elastomer, which has been formed, for example, in a multi-component injection molding process to the valve disk 2.
  • a design variant is in Fig. 5a shown.
  • the seal 24 is formed here on an annular bearing surface of the valve disk.
  • the Fig. 6a and 6b also show a valve plate 2, which has been connected to the mouthpiece 23 of the plastic container 1 by staking.
  • the seal 24 consists of an elastic sealing component, which is integrally formed on the valve plate 2.
  • the valve disk 2 has stiffening ribs 12 both on the upper side and on the underside of the disk surface 4. In this case, an arrangement of annular stiffening ribs and radially oriented to the ram opening stiffening ribs is provided.
  • the valve plate 2 is connected by a laser weld 25 with the container 1 made of plastic.
  • the laser weld 25 connects a collar 13 of the valve disk 2, which bears against a container inner surface bounding the container opening.
  • the laser weld 25 can be produced by a radial laser welding process, in which the laser beam is guided by a mirror so that it impinges radially on the rotationally symmetrical surface of the parts to be welded.
  • leather welding methods can be used in which the workpiece is rotated about its longitudinal axis. With the help of the laser welding process, a pressure-tight insoluble compound can be produced. Additional seals can be omitted.
  • the welded connection can be produced with short cycle times.
  • the wall of the container 1 must be laser-permeable, while the valve plate 2 consists of a laser-absorbing material.
  • the laser weld 25 is disposed on an annular end face.
  • Fig. 8 and 9 adhesive bonds between the valve plate 2 and a plastic aerosol container 1 are shown.
  • Fig. 8 engages the container opening surrounding the edge 26 of the container 1 in an annular groove 27 of the valve disk 2, wherein the gap between the interlocking parts of a cured hot melt adhesive 28 is filled.
  • a welding auxiliary body is inserted into the annular groove 27. By inductive heating of the auxiliary welding body this is liquefied and fills the gap between the parts to be joined. The result is a permanent bond with high strength, which is heat resistant and impact resistant.
  • the container has a container collar 29 with at least one pocket 30, wherein the pocket 30 may be formed as an annular gap.
  • the valve disk 2 rests on the container collar 29 and has a connecting element 31 engaging in the pocket 30.
  • the gap of the interlocking parts is filled by a cured hot melt adhesive 28.
  • the adhesive bond is produced in the same way as described above.
  • the Fig. 10 and 11 These screw connections between the valve disk 2 and the aerosol container 1.
  • This is designed as a blow-molded plastic container and has a container collar 32 with a thread that can be designed as an internal thread 33 or external thread 34.
  • the thread is an internal thread 33.
  • the valve plate 2 is connected by a non-detachable screw with the container collar 32, wherein between the container collar 32 and the valve plate 2, a seal 35 is arranged.
  • the screw connection comprises a union nut 36, which is screwed onto an external thread 34 of the container collar 32 and braces the valve disk 2 with the container collar. Between the container collar 32 and the valve plate 2, a seal 35 is also arranged here.
  • the in the Fig. 10 and 11 Screw connections shown are not solvable. They expediently have latching elements which block a rotational movement of the parts which can be screwed together in the opening direction.
  • the Fig. 12a shows a connector 37 using a in Fig. 12b illustrated clamping element set 38 for connecting the valve disc 2 with a plastic container.
  • the plastic aerosol container 1 has a cylindrical container neck 39 into which a collar 40 of the valve plate 2 engages.
  • an outer clamping ring 41 is connected, which surrounds the container neck 39 and defines a wedge-shaped in cross-section annular space between the container neck 39 and the outer clamping ring 41.
  • the outer clamping ring 41 is fixedly connected to the valve disk 2, for example by laser welding.
  • an inner clamping ring 42 is arranged, which fills the wedge-shaped annular space.
  • a seal 43 is arranged, which is deformed by an axial relative movement of the two clamping rings 41, 42 and abuts against an inner surface of the outer clamping ring 41 and an outer surface of the container neck 39.
  • at least one annular seal 44 is arranged on the collar 40 of the valve disk 2, which rests against the inner surface of the container neck 39.
  • the mutually facing surfaces of the inner clamping ring 41 and the container neck 39 finally have a profiling 45 for locking the surfaces.
  • the connection is no longer detachable after assembly. The prevailing after filling the aerosol container in the container internal pressure amplifies the resulting clamping effect between the parts.
  • the valve plate can also be connected by a latching connection with the aerosol container.
  • the valve disk 2 has latching hooks 46, which engage behind an annular collar 47 of the container on the inside of the container.
  • the locking connection on the inside of the container is inaccessible from the outside and not solvable.
  • an elastomeric sealing surface 48 is further formed on the valve plate 2.
  • the latching hooks 46 can also be an annular mouth 47 'on the outside of the container.
  • an unillustrated clamping ring can be used which prevents bending of the latching hook.

Landscapes

  • 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)
EP14185411.7A 2014-09-18 2014-09-18 Fixation d'une soupape dans la coupelle d'un récipient aérosol Withdrawn EP2998241A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14185411.7A EP2998241A1 (fr) 2014-09-18 2014-09-18 Fixation d'une soupape dans la coupelle d'un récipient aérosol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14185411.7A EP2998241A1 (fr) 2014-09-18 2014-09-18 Fixation d'une soupape dans la coupelle d'un récipient aérosol

Publications (1)

Publication Number Publication Date
EP2998241A1 true EP2998241A1 (fr) 2016-03-23

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ID=51570343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14185411.7A Withdrawn EP2998241A1 (fr) 2014-09-18 2014-09-18 Fixation d'une soupape dans la coupelle d'un récipient aérosol

Country Status (1)

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EP (1) EP2998241A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019082067A1 (fr) * 2017-10-27 2019-05-02 COMPAGNO RODRIGUEZ, Horacio, Alberto Contenant comportant une valve de dosage
WO2020016199A1 (fr) * 2018-07-18 2020-01-23 Lindal France Sas Boîtier pour récipient sous pression

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686081A (en) * 1953-09-24 1954-08-10 Pressure Packaging Corp Plastic pressurized container and dispenser
US3074601A (en) * 1956-11-20 1963-01-22 Aerosol Res Company Aerosol valve assembly
US3081917A (en) * 1958-07-29 1963-03-19 Rech S Tech Soc Et Reservoir provided with a valve
DE2038580A1 (de) 1969-10-21 1971-04-29 Coster Tecnologie Speciali Spa Ventil fuer Aerosolbehaelter
US3806005A (en) * 1969-03-26 1974-04-23 S Prussin Aerosol container with plug-in cap and valve structure
FR2508136A1 (fr) * 1981-06-19 1982-12-24 Oreal Perfectionnement aux valves pour recipients aerosols
DE3807156A1 (de) 1988-03-04 1989-09-14 Perfect Ventil Gmbh Aerosolbehaelter
WO2007107174A1 (fr) * 2006-03-21 2007-09-27 Coster Tecnologie Speciali S.P.A. Module de soupape de distribution pour distribuer des liquides sous pression et recipient contenant un tel module
US20090014679A1 (en) * 2007-07-13 2009-01-15 Precision Valve Corporation Plastic aerosol valve and method of assembly, mounting and retention
FR2925032A1 (fr) 2007-12-17 2009-06-19 Oreal Valve pour recipient sous pression de stockage et de distribution de produit et recipient pourvu d'une telle valve
EP2551215A1 (fr) * 2011-07-26 2013-01-30 Inospray Procedé de réalisation de dispositif recharge pour boîtier diffuseur rechargeable et dispositif recharge adapté

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686081A (en) * 1953-09-24 1954-08-10 Pressure Packaging Corp Plastic pressurized container and dispenser
US3074601A (en) * 1956-11-20 1963-01-22 Aerosol Res Company Aerosol valve assembly
US3081917A (en) * 1958-07-29 1963-03-19 Rech S Tech Soc Et Reservoir provided with a valve
US3806005A (en) * 1969-03-26 1974-04-23 S Prussin Aerosol container with plug-in cap and valve structure
DE2038580A1 (de) 1969-10-21 1971-04-29 Coster Tecnologie Speciali Spa Ventil fuer Aerosolbehaelter
FR2508136A1 (fr) * 1981-06-19 1982-12-24 Oreal Perfectionnement aux valves pour recipients aerosols
DE3807156A1 (de) 1988-03-04 1989-09-14 Perfect Ventil Gmbh Aerosolbehaelter
WO2007107174A1 (fr) * 2006-03-21 2007-09-27 Coster Tecnologie Speciali S.P.A. Module de soupape de distribution pour distribuer des liquides sous pression et recipient contenant un tel module
US20090014679A1 (en) * 2007-07-13 2009-01-15 Precision Valve Corporation Plastic aerosol valve and method of assembly, mounting and retention
FR2925032A1 (fr) 2007-12-17 2009-06-19 Oreal Valve pour recipient sous pression de stockage et de distribution de produit et recipient pourvu d'une telle valve
EP2551215A1 (fr) * 2011-07-26 2013-01-30 Inospray Procedé de réalisation de dispositif recharge pour boîtier diffuseur rechargeable et dispositif recharge adapté

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019082067A1 (fr) * 2017-10-27 2019-05-02 COMPAGNO RODRIGUEZ, Horacio, Alberto Contenant comportant une valve de dosage
WO2020016199A1 (fr) * 2018-07-18 2020-01-23 Lindal France Sas Boîtier pour récipient sous pression
FR3084065A1 (fr) * 2018-07-18 2020-01-24 Lindal France Boitier pour recipient sous pression
US11970329B2 (en) 2018-07-18 2024-04-30 Lindal France Sas Housing for a pressurized container

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