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EP0794910B1 - Agencement de soupape pour recipients distributeurs de liquides ou de mousses sous pression - Google Patents

Agencement de soupape pour recipients distributeurs de liquides ou de mousses sous pression Download PDF

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Publication number
EP0794910B1
EP0794910B1 EP95935344A EP95935344A EP0794910B1 EP 0794910 B1 EP0794910 B1 EP 0794910B1 EP 95935344 A EP95935344 A EP 95935344A EP 95935344 A EP95935344 A EP 95935344A EP 0794910 B1 EP0794910 B1 EP 0794910B1
Authority
EP
European Patent Office
Prior art keywords
valve
arrangement according
sealing
valve arrangement
region
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
EP95935344A
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German (de)
English (en)
Other versions
EP0794910A1 (fr
Inventor
Klaus Kellner
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.)
AMV Automation Montage Vertrieb Firma
Original Assignee
AMV Automation Montage Vertrieb Firma
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 AMV Automation Montage Vertrieb Firma filed Critical AMV Automation Montage Vertrieb Firma
Publication of EP0794910A1 publication Critical patent/EP0794910A1/fr
Application granted granted Critical
Publication of EP0794910B1 publication Critical patent/EP0794910B1/fr
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
    • B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action

Definitions

  • the invention relates to a valve arrangement with the features of the preamble of Claim 1.
  • valve assemblies sit on a container for dispensing of pressurized liquid or foam, especially PU foam, assembly or sealing foam is used, which is provided with a valve plate on the top, which has a particularly circular opening in which one with a valve stem provided valve body is attached.
  • the valve stem is elastically compressible and interacts with sealing elements in the sense of a valve opening.
  • the sealing elements have in particular flat or conical sealing surfaces which on a Sealing bodies are arranged and correspondingly shaped sealing surfaces in the closed position of the valve body.
  • valve assemblies have resilient sections or elements that the Ensure compressibility of the valve stem. These resilient sections or elements that e.g. B. can be dome-shaped, tend to instabilities to be shown, which lead to a functional impairment during storage and operation can.
  • Available valve bodies often have from the beginning or already after a short period of use, the elastic properties required or no longer. They are either too hard or not flexible enough, they can be too soft or wear out too quickly. This means that the valve assembly after the discharge process does not return to the defined starting / closing position and is not sufficient Sealing achieved more. Foam escapes, which can lead to contamination and can cause damage.
  • the invention has for its object to improve a valve assembly and train that they have a high functionality and a simple structure ensures a good sealing effect and is easy to manufacture and assemble. This task is solved by the characterizing features of claim 1. Advantageous further training the invention emerge from the subclaims 2-30.
  • the core of the invention is considered to be the valve body as a plastic composite body consisting of an inner, hard part and an outer, soft Form part, with the inner, hard part and the outer, soft part at their common Contact surfaces intimately into an unsolvable spray process Are joined together, the outer soft part dome-like beyond the valve plate Formation of a cavity between the inner hard part and the outer soft part is formed and thus one for opening the valve assembly compressible flexible section forms.
  • the valve body is manufactured using a two-stage spraying process.
  • the outer, soft part ensures the necessary spring action in the compressible area, but also in the areas of the sealing body, the valve plate and Connection for the outlet line the necessary sealing effect.
  • the inner, hard part is formed essentially as a tubular body, which is part of the valve body fully or partially penetrates the valve body in selected areas, d. H. also reinforced in the resilient area.
  • the contact surface of the hard is connected Material very intimately with the available contact surface of the soft Material, so that an indissoluble bond of the body is created.
  • the outer soft part of the valve body in cooperation with the inner, hard part an excellent sealing effect after the discharge process and results in storage. Additional O-rings and the like.
  • One and the same soft body is also used for other sealing areas used, if necessary in its upper end area by provision of valve stem sealing lips as a connection for the outlet lines to which the Discharge device, e.g. can be connected in the form of a spray gun or the like and as a seal between the valve plate and valve body. Due to the multiple sealing function can use both material and assembly costs to manufacture the entire Arrangement can be saved.
  • the inner, hard part of the valve body in its middle Area is provided with an outwardly facing collar, which is above the tubular Section of the hard part protrudes radially.
  • the sealing body is advantageously at the lower open end of the inner, hard part attached, for example at the top of the sealing body in the lower open End of the inner, hard part engaging holding element in the form of a bayonet catch or snap hook can be arranged. But it is also possible to connect between the sealing body and the lower end of the hard part by a press fit connection to make or to provide a glue or ultrasonic welding.
  • the ring collar facing outwards is in the case of a dome-like one
  • the flexible area is designed in the manner of a convex dome from the relatively hard material that continues on its outside from a dome of the soft part is covered. This makes the soft material through the relatively hard Material supports, so that there are high spring forces, which are excellent Ensure seal.
  • the lower area of the dome continues like a cylinder wall, that of an area of higher material thickness of the soft part is surrounded, in which the Valve plate is injected.
  • the valve disk can have different designs. He can e.g. B. also in shape be pulled out of a pot and additionally with an injection molded part attached therein be provided. The injection molded part is inserted into the valve plate before it is inserted Injection mold attached and against twisting by embossing beads or the like in Valve disc permanently secured.
  • valve disc with its radially outer U-shaped bent edge formed with a radially outward projection, then a discharge gun adapter be placed directly on the valve plate.
  • the lead can be a circumferential or at least partially circumferential edging of the edge and an element of a bayonet connection between the valve plate which can be secured by twisting and the discharge gun adapter.
  • discharge gun adapter it is also possible to use the discharge gun adapter to be provided with resilient locking hooks that protrude or spring overlap the flanging to produce a snap-lock connection.
  • valve disk A further particularly advantageous modification of the valve disk can be found in claim 25 out, after which the valve plate is drawn into the area of the sealing body like a pot is and provided in the area of the sealing body with inward-pointing retaining projections is.
  • a spring body can be hooked into these holding projections Sealing body acted on in the closing direction. Through these measures, the closing force of the sealing body reinforced by an additional spring body, independently from the formation of the other elasticity of the valve body.
  • the spring body should advantageously be designed as a pot-shaped metal body. In the bottom area of the metal body, a punched-out is provided, which is against the Protruding body protrudes and acts upon this resiliently.
  • FIG. 1 shows how one Valve arrangement is mounted in a valve plate 13 of a foam can.
  • the valve assembly sits in the valve plate 13, which is drawn in like a pot and in its interior the valve assembly holds.
  • valve body 1 has a flexible, dome-like area 5 with subsequent connection and sealing area 6, which radially on the outside with the inside wall 16 of the container Spray can connected valve plate 13 communicates and the opening to the container interior penetrates into a wall section with a flat sealing surface 7.
  • This soft sealing surface 7 works together with a separate, hard sealing body 9, the inside of the dome-like area 5 by a bayonet lock 12th is held.
  • valve assembly When actuating the valve assembly, i. H. when pressing the flexible, dome-like Area 5, the liquid or foam passes through a valve opening that is then released 8.
  • the further exit path leads via a between the valve body and the sealing body formed space 11 and from there through an inner hard part 2 of the valve body 1 to the outlet line or a spray gun.
  • valve body 1 In the upper area of the valve body 1 form the inner hard part 2 with the outer soft part 3 a valve stem 4 with soft sealing lips for connecting an outlet line or a spray gun.
  • valve plate 13 via a clinching is connected to the container inner wall 16.
  • drawing fig. 3 shows another advantageous embodiment of the invention, which is characterized in particular by the compressible, flexible region 5, which forms a small-volume room 11 here.
  • the exit path of the liquid or the foam becomes shorter and more advantageous, the material to be discharged can become not so easy to set compared to training with a dome-like area.
  • FIG. 2 3 has an outwardly projecting collar 10 on inner hard part of the valve body 2.
  • the ring collar 10 improves the intimate Bond between the inner hard part 2 and the outer soft part 3 of the valve body.
  • drawing fig. 4 shows a further advantageous embodiment, which is in particular by a deeper drawn valve plate 13 with an attached therein Injection molded part with internal thread 14.
  • the outlet elements or the spray gun are screwed in.
  • the valve stem protrudes in FIG. 4 4 with soft sealing lips not out of the container.
  • drawing fig. 5 shows an embodiment with an external thread 15 on the inside hard part 2 of the valve body 1 shown. This can be done e.g. B. a gun-like adapter screwed, which is also shown in Fig. 7, for example.
  • valve disk 13 is on its radially outer side lying, U-shaped bent edge 20 with at least one radially outward Protrusion 18 is formed for fastening a discharge gun adapter 19.
  • the projection 18 can be a circumferential flange 17 of the edge 20 of the valve plate be formed and an element of a bayonet connection which can be secured by rotation 22 form between the valve plate 13 and discharge gun adapter 19.
  • the discharge gun adapter 19 is provided with latching hooks for this, which are the at least one Projection 18 or the flange 17 for making the connection resilient spread.
  • FIGS. 5 and 6 Another difference between the exemplary embodiments in FIGS. 5 and 6 is that below the external thread 15 of the valve stem 4, the upper area of the outer soft part 3 is provided with sealing lips.
  • the arranged on the valve stem 4 Elements a double function, namely a screw fastening one to it fastened part by the external thread 15 and a seal by the sealing lips, which is important, for example, in the case of a dispensing gun adapter 19 Meaning is.
  • valve plate 13 is modified in its lower area to that it is drawn like a pot into the area of the sealing body 9 and in the area of the Sealing body 9 is provided with inwardly pointing retaining projections 25 into which a the spring body 30 acting on the sealing body 9 in the closing direction can be suspended.
  • the spring body 30 is a pot-shaped metal body in its bottom area 32, a spring punch 23 directed against the sealing body 9 is arranged.
  • the spring body 30 is provided with radially outer latching hooks 29, which have an inclined sliding surface 33 for pressing into the retaining projections 25 of the valve plate 13.
  • the spring body 30 acts on the center of the sealing body 9 in the closing direction
  • sealing body 9 has, on its underside 27, a central projection 24, which with the spring body 30 cooperates.
  • the central projection 24 is one against the Surround spring body 30, approximately annular circumferential recess 26.

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)
  • Closures For Containers (AREA)

Claims (30)

  1. Agencement de soupape pour un récipient distributeur de liquide ou de mousse sous pression, notamment une mousse de polyuréthanne comme une mousse de montage ou d'étanchéité hors d'un récipient, avec les caractéristiques suivantes :
    le récipient est muni sur son côté supérieur d'une tête de soupape (13) qui présente une ouverture en particulier circulaire, dans laquelle est fixé un corps de soupape (1) muni d'une tige de soupape (4),
    la tige de soupape (4) peut être appuyée contre la force d'un ressort et agit ainsi avec des éléments d'étanchéité dans le sens d'une ouverture de soupape ;
    les éléments d'étanchéité présentent notamment des surfaces d'étanchéité du corps d'étanchéité planes ou en forme de cônes qui, en position de fermeture, chargent des surfaces d'étanchéité du corps d'étanchéité (1) planes ou placées en forme de cônes, ainsi que
    le corps de soupape (1) est composé d'une pièce interne dure (2) et d'une pièce externe molle (3),
    caractérisé en ce que
    la pièce interne dure (2) et la pièce externe molle (3) sont étroitement assemblées sur les surfaces de contact communes par un procédé par injection en un corps composite indémontable, la pièce externe molle (3) étant formée jusqu'au-delà de la tête de soupape (13) en forme de dôme pour la formation d'un espace creux (11) entre la pièce interne dure (2) et la pièce externe molle (3), et formant ainsi une section flexible pouvant être appuyée pour l'ouverture de l'agencement de soupape.
  2. Agencement de soupape selon la revendication 1, caractérisé en ce que la pièce interne dure (2) est formée comme un corps de tuyau qui traverse ou forme la tige de soupape (4) entièrement ou au moins en partie.
  3. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la pièce externe molle (3) forme un joint d'étanchéité de tige de soupape sur son extrémité supérieure, une partie flexible (5) pour appuyer sur le corps de soupape (1) au milieu, la partie de liaison et d'étanchéité (6) entre le corps de soupape (1) et la tête de soupape (13) en-dessous, et la surface d'étanchéité (7) pour l'ouverture de soupape (8) à son extrémité inférieure.
  4. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que l'espace (11) entre le corps de soupape (1) et le corps d'étanchéité (9), rempli avec le matériau inséré, est de petit volume.
  5. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la pièce interne dure (2) du corps de soupape (1) est munie dans sa partie médiane d'un collier annulaire (10) dirigé vers l'extérieur.
  6. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que le corps d'étanchéité (9) est fixé à l'extrémité inférieure ouverte de la pièce interne dure (2).
  7. Agencement de soupape selon la revendication 6, caractérisé en ce que sur le côté supérieur du corps d'étanchéité (9) est placé un élément de maintien (fermeture à baïonnette 12) ayant prise dans l'extrémité inférieure ouverte de la pièce interne dure (2).
  8. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que le raccordement entre le corps d'étanchéité (9) et l'extrémité inférieure de la pièce dure (2) est réalisé par ajustement avec serrage, encollage ou soudure à ultrasons.
  9. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que l'épaisseur de paroi de la partie flexible (5) est supérieure à l'épaisseur de paroi du corps en forme de tube.
  10. Agencement de soupape selon la revendication 5, caractérisé en ce que le collier annulaire (10) dirigé vers l'extérieur se prolonge, lorsque la partie flexible (5) est en forme de dôme, de manière similaire à un dôme (10') convexe qui est recouvert à l'extérieur par un dôme de la pièce molle (3).
  11. Agencement de soupape selon la revendication 10, caractérisé en ce que le bord inférieur du dôme (10') se termine à peu près dans la partie de la tête de soupape (13).
  12. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que l'épaisseur de paroi du dôme (10') est réduite par rapport à l'épaisseur de paroi du corps en forme de tuyau (2').
  13. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la partie inférieure du dôme (10') est formée comme une paroi cylindrique.
  14. Agencement de soupape selon la revendication 13, caractérisé en ce que la partie du dôme (10') en forme de cylindre est entourée par une section (21) de la pièce externe molle (3) d'une épaisseur de matériau plus importante, dans laquelle section la tête de la soupape (13) est injectée.
  15. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que le bord inférieur du corps en forme de tuyau (2') dépasse du bord inférieur du dôme (10').
  16. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que le joint d'étanchéité de la tige de soupape est muni de lèvres d'étanchéité.
  17. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que le corps en forme de tuyau (2') dépasse de la partie supérieure de la pièce externe molle (3) et forme une tige de soupape dure munie d'un filetage extérieur (15).
  18. Agencement de soupape selon la revendication 17, caractérisé en ce que la partie supérieure de la pièce externe molle (3) est munie de lèvres d'étanchéité en-dessous du filetage extérieur (15).
  19. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la tête de soupape (13) est munie d'une pièce filetée (14) fixée à l'intérieur de manière à assurer un blocage.
  20. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la tête de soupape (13), sur son bord (20) radialement extérieur et courbé en forme de U, est formée avec au moins une avancée (18) radialement extérieure pour la fixation d'un adaptateur de pistolet d'évacuation (19).
  21. Agencement de soupape selon la revendication 19, caractérisé en ce qu'au moins une avancée (18) est formée comme bord rabattu (17) continu du bord (20) de la tête de soupape (13).
  22. Agencement de soupape selon l'une des revendications précédentes 18 et 19, caractérisé en ce qu'un élément d'un raccord à baïonnette (22), bloqué de manière à ne pas se desserrer, entre la tête de soupape (13) et l'adaptateur de pistolet d'évacuation (19) est formé par au moins une avancée (18).
  23. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que l'adaptateur de pistolet d'évacuation (19) est muni de crochets à crans qui ont prise par ressort au moins dans une avancée (18) ou dans le bord rabattu (17) pour réaliser un raccord à crans encliquetable.
  24. Agencement de soupape selon l'une des revendications précédentes 1 à 20, caractérisé en ce qu'au moins une avancée (18) est formée comme filetage extérieur sur lequel l'adaptateur de pistolet d'évacuation (19) muni d'un filetage intérieur approprié (31) peut être fixé directement.
  25. Agencement de soupape selon l'une des revendications précédentes, caractérisé en ce que la tête de soupape (13) est insérée en forme de pot jusque dans la partie du corps d'étanchéité (9) et est munie, dans la partie du corps d'étanchéité (9), d'avancées de maintien (25) dirigées vers l'intérieur, dans lesquelles un corps de ressort (30) chargeant le corps d'étanchéité (9) en sens de fermeture peut être accroché.
  26. Corps de soupape selon la revendication 25, caractérisé en ce que le corps de ressort (30) est formé comme corps métallique en forme de pot gaufré, dans le fond (32) duquel est placé une matrice à ressort (23) dirigée contre le corps d'étanchéité (9).
  27. Corps de soupape selon l'une des revendications précédentes 25 ou 26, caractérisé en ce que le corps de ressort (30) est muni radialement sur l'extérieur de crochets d'arrêt (29) formés avec une surface oblique de glissement pour appuyer dans les avancées de maintien (25) de la tête de soupape (13).
  28. Agencement de soupape selon l'une des revendications précédentes 25 à 27, caractérisé en ce que le corps de ressort (30) charge le centre du corps d'étanchéité (9) dans le sens de fermeture.
  29. Corps de soupape selon l'une des revendications précédentes 25 à 28, caractérisé en ce que le corps d'étanchéité (9) est muni sur son côté inférieur (27) d'une avancée médiane (24) qui est chargée par le corps de ressort (30) dans le sens de fermeture.
  30. Agencement de soupape selon l'une des revendications précédentes 25 à 29, caractérisé en ce que l'avancée médiane (24) est entourée par un creux (26) s'étendant à peu près de manière circulaire contre le corps de ressort (30).
EP95935344A 1994-12-06 1995-10-20 Agencement de soupape pour recipients distributeurs de liquides ou de mousses sous pression Expired - Lifetime EP0794910B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4443287 1994-12-06
DE4443287A DE4443287C2 (de) 1994-12-06 1994-12-06 Ventilanordnung für einen Behälter zur Abgabe von unter Druck stehender Flüssigkeit oder Schaum
PCT/DE1995/001460 WO1996017795A1 (fr) 1994-12-06 1995-10-20 Agencement de soupape pour recipients distributeurs de liquides ou de mousses sous pression

Publications (2)

Publication Number Publication Date
EP0794910A1 EP0794910A1 (fr) 1997-09-17
EP0794910B1 true EP0794910B1 (fr) 2000-01-19

Family

ID=6534982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95935344A Expired - Lifetime EP0794910B1 (fr) 1994-12-06 1995-10-20 Agencement de soupape pour recipients distributeurs de liquides ou de mousses sous pression

Country Status (5)

Country Link
US (1) US5927563A (fr)
EP (1) EP0794910B1 (fr)
AT (1) ATE188940T1 (fr)
DE (2) DE4443287C2 (fr)
WO (1) WO1996017795A1 (fr)

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Also Published As

Publication number Publication date
EP0794910A1 (fr) 1997-09-17
ATE188940T1 (de) 2000-02-15
DE4443287C2 (de) 2001-08-09
DE59507658D1 (de) 2000-02-24
WO1996017795A1 (fr) 1996-06-13
US5927563A (en) 1999-07-27
DE4443287A1 (de) 1996-06-13

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