EP0756525B1 - Vorrichtung zur einstellung des druckkammervolumens einer vordruckpumpe - Google Patents

Vorrichtung zur einstellung des druckkammervolumens einer vordruckpumpe Download PDF

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Publication number
EP0756525B1
EP0756525B1 EP95916731A EP95916731A EP0756525B1 EP 0756525 B1 EP0756525 B1 EP 0756525B1 EP 95916731 A EP95916731 A EP 95916731A EP 95916731 A EP95916731 A EP 95916731A EP 0756525 B1 EP0756525 B1 EP 0756525B1
Authority
EP
European Patent Office
Prior art keywords
pump
depression
piston
pump body
crimping ring
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
EP95916731A
Other languages
English (en)
French (fr)
Other versions
EP0756525A1 (de
Inventor
Jean-Pierre Lina
Claude Vincent
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.)
Aptar France SAS
Original Assignee
Valois SAS
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 Valois SAS filed Critical Valois SAS
Publication of EP0756525A1 publication Critical patent/EP0756525A1/de
Application granted granted Critical
Publication of EP0756525B1 publication Critical patent/EP0756525B1/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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1005—Piston pumps with means for adjusting or modifying pump stroke
    • B05B11/1007—Piston pumps with means for adjusting or modifying pump stroke by adjusting or modifying the pump end-of-sucking-stroke position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the present invention relates to a device for dispensing fluid products comprising a precompression pump and more particularly a means and a method adjusting the volume of the pump chamber of said dispensing device, allowing thus to vary the amount of product dispensed during actuation of said device.
  • Such a dispenser is described for example in document FR-2 686 377 and is shown in Figure 1. It includes a precompression pump comprising a body of a cylindrical pump 1 in which an annular piston 3 slides, the piston 3 is controlled by a push rod 10 which slides in said piston 3 and which comprises a outer sleeve 11, fixed on an inner core 12, and an outlet channel 13 opening in the pump body 1 through a lateral opening 5.
  • the piston cooperates with the push rod 10 for closing or clearing said lateral opening, the push rod being connected to the piston 3 by a precompression spring 8 which pushes the piston towards a rest position where it closes said lateral opening. Pressing the push rod 10 lowers it in the pump body which urges the piston 3 downwards made of precompression spring 8. This creates an overpressure in the pump 6 until this overpressure is sufficient to counterbalance the force of the precompression spring 8 and thus release the lateral opening 5 to allow the expulsion of the product contained in the pump chamber 6.
  • an upper part 2 of the pump body 1 is fixedly fixed on the neck of the container by means of a hoop or capsule 20a, capable of be crimped on the upper part 2 of the pump body, and which has an opening central unit 21 through which an upper part 10 of the pump passes.
  • the object of the present invention is to provide a means and a method for adjusting the volume of the pump chamber 6 of such a product dispenser comprising a pump with precompression, said means having to be easily realizable and adaptable to said product distributor without increasing manufacturing costs.
  • the present invention therefore relates to a product distribution device fluid comprising a container provided with a neck and a pump fixed on said neck by means a hoop said pump comprising a pump chamber delimited by a body of pump and a piston sliding in said pump body between a rest position and an actuating position, the volume of the pump chamber being defined by the body pump and the piston rest position, said hoop having a central opening through which an upper part of said pump passes, characterized in that said hoop has, near its central opening, at least one recess having a determined depth and penetrating into the pump body, said at least one recess being with a lower part, in contact with an element of the pump determining the rest position of the piston, this being moved inside the body of pump from a distance approximately equal to the depth of said at least one recess, of so that the depth of said depression regulates the volume of the pump chamber.
  • the invention therefore makes it possible to solve the aforementioned technical problem by not modifying only one piece, the hoop, which is one of the last pieces to be assembled on the Mountain range.
  • the hoop which is one of the last pieces to be assembled on the Mountain range.
  • said hoop has a single depression in the body of pump, said recess being annular and defining said central opening.
  • said hoop with its depression has a general external shape identical regardless of the depth of said depression. It is so possible, with a single assembly unit, to make distributors with rooms with different dosing chamber volumes.
  • the invention also relates to a method for adjusting the volume of a pump chamber of a pump fixed to the neck of a container by means of a hoop, said pump comprising a pump body and a piston sliding in said pump body pump between a rest position and an actuation position, the volume of the pump chamber being defined by the pump body and the piston rest position, said hoop having a central opening through which a part passes upper part of said pump, said method being characterized by the step of forming in the hoop, near the central opening, at least one recess having a determined depth and penetrating into the pump body, said recess being, with a lower part, in contact with a element of the pump determining the rest position of the piston, the latter being moved to the interior of the pump body from a distance approximately equal to the depth of said au minus one depression, so that the depth of said at least one depression regulates the volume of the pump chamber.
  • a single annular depression is formed in the hoop, said annular depression defining said central opening.
  • the step of forming at least one depression in the hoop is carried out by deformation of material near said central opening.
  • the step of forming at least one depression in the hoop is carried out so that the fret with at least one recess has an external shape general identical regardless of the depth of said depression.
  • the pump chamber 6 is delimited by the pump body 1 and the piston 3.
  • the quantity of product dispensed when the device is actuated is defined by the volume of said pump chamber 6, itself defined by the rest position of the piston 3.
  • the dispenser according to the invention therefore provides for change the rest position of the piston 3 to adjust the volume of the pump chamber 6. All of the components of the dispenser according to the invention are identical to those of the dispenser of the prior art described above, and will therefore not be described in new in detail, except the hoop 20b for fixing the pump body 1 on the neck of the container.
  • the hoop 20b comprises near said opening central unit 21 at least one recess 30 in said pump body 1, said recess 30 being, with a lower part 31, in contact with an element of the pump determining the rest position of the piston 3.
  • said rest position is defined by the precompression spring 8 resting on one side on the piston 3 and on the other side on a shoulder 11a of the sleeve 11 of the push rod 10, said part of the sleeve relying on said hoop 20a, 20b possibly via a seal seal 17, as shown in Figure 2.
  • the depression 30 moves the rest position of the piston 3 inside the pump body 1 from a distance of approximately equal to the depth of said depression. Therefore, the volume of the pump is modified in proportion to the depth of the depression 30.
  • said hoop 20b comprises a single annular depression 30, said annular depression 30 defining the central opening 21.
  • the method of manufacturing the hoop 20b according to the invention is therefore very easily achievable, by example by simple deformation of material at the level of the central opening 21, and does not therefore requires no complicated and expensive manufacturing machine. So advantageous, provision is made to form said lower part 31 of the recess 30 under the form of a horizontal flange having at its center said central opening 21.
  • This implementation of the depression 30 makes it possible to arrange the seal 17 directly under said recess 30 and avoids having to insert a flat part additional.
  • the general shape of the hoops 20a, 20b is not modified. These can therefore be mounted on the distribution device by the same assembly unit independently the presence of a depression 30.
  • the main advantage of the invention is therefore to allow the manufacture of product distributors with metering chambers with different volumes, on the same assembly line, by modifying only one piece, namely the hoop, which plus is one of the last to be assembled. All other components making up the product distributor are unchanged.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Claims (7)

  1. Abgabevorrichtung für ein Fluid, die einen mit einem Hals versehenen Behälter und eine Pumpe umfaßt, die auf diesem Hals vermittels eines Mantelringes (20b) befestigt ist, wobei die Pumpe eine Pumpenkammer (6), die von einem Pumpenkörper (1) begrenzt wird, und einen Kolben (3) umfaßt, der im Pumpenkörper (1) zwischen einer Ruhelage und einer Arbeitsstellung gleitet, wobei das Volumen der Pumpenkammer (6) durch den Pumpenkörper (1) und die Ruhelage des Kolbens (3) definiert ist, wobei weiterhin der Mantelring (20b) eine zentrale Öffnung (21) aufweist, durch die ein oberer Teil (10) der Pumpe hindurchtritt, dadurch gekennzeichnet, daß der Mantelring (20) in der Nähe seiner zentralen Öffnung (21) wenigstens eine Vertiefung (30) aufweist, die eine vorgegebene Tiefe besitzt und in den Pumpenkörper (1) hineinragt, wobei die wenigstens eine Vertiefung (30) einen unteren Teil (31) aufweist, der mit einem Element der Pumpe in Berührung steht, das die Ruhelage des Kolbens (3) festlegt, wobei dieser im Inneren des Pumpenkörpers (1) um einen Abstand versetzt ist, der ungefähr gleich der Tiefe der wenigstens einen Vertiefung (30) ist, derart, daß die Tiefe der Vertiefung das Volumen der Pumpenkammer (6) einstellt.
  2. Vorrichtung nach Anspruch 1, bei der der Mantelring (20b) eine einzige, ringförmige Vertiefung (30) umfaßt, wobei diese ringförmige Vertiefung die zentrale Öffnung (21) umschließt.
  3. Vorrichtung nach Anspruch 1 oder 2, bei der der Mantelring (20b) mit seiner Vertiefung (30) eine äußere Form besitzt, die unabhängig von der Tiefe der Vertiefung (30) im wesentlichen immer die gleiche ist.
  4. Verfahren zum Einstellen des Volumens einer Pumpenkammer (6), einer auf dem Hals eines Behälters vermittels eines Mantelringes (20b) befestigten Pumpe, wobei die Pumpe einen Pumpenkörper (1) und einen Kolben (3) umfaßt, der im Pumpenkörper (1) zwischen einer Ruhelage und einer Arbeitsstellung gleitet, wobei das Volumen der Pumpenkammer (6) durch den Pumpenkörper (1) und die Ruhelage des Kolbens (3) definiert ist, wobei der Mantelring (20b) eine zentrale Öffnung (21) aufweist, durch die hindurch sich ein oberer Teil (10) der Pumpe erstreckt, gekennzeichnet durch den Schritt, daß der Mantelring (20b) in der Nähe der zentralen Öffnung (21) mit wenigstens einer Vertiefung (30) ausgebildet wird, die eine festgelegte Tiefe aufweist und sich in den Pumpenkörper (1) hinein erstreckt, wobei die Vertiefung (30) mit einem unteren Teil (31) mit einem Element der Pumpe in Berührung steht, das die Ruhelage des Kolbens (3) festlegt, wobei dieser im Inneren des Pumpenkörpers (1) um einen Abstand verschoben ist, der in etwa gleich der Tiefe der wenigstens einen Vertiefung (30) ist, derart, daß die Tiefe der wenigstens einen Vertiefung (30) das Volumen der Pumpenkammer (6) einstellt.
  5. Verfahren nach Anspruch 4, bei dem eine einzige, ringförmige Vertiefung (30) im Mantelring (20b) ausgebildet wird, wobei diese ringförmige Vertiefung die zentrale Öffnung (21) umschließt.
  6. Verfahren nach Anspruch 4 oder 5, bei dem der Schritt des Ausbildens wenigstens einer Vertiefung (30) im Mantelring (20b) durch eine Verformung des Materials in der Nähe der zentralen Öffnung (21) durchgeführt wird.
  7. Verfahren nach einem der Ansprüche 4 bis 6, bei dem der Schritt der Ausbildung wenigstens einer Vertiefung (30) im Mantelring (20b) derart ausgeführt wird, daß der Mantelring (20b) mit seiner wenigstens einen Vertiefung (30) unabhängig von der Tiefe der Vertiefung (30) eine im wesentlichen immer gleiche Form aufweist.
EP95916731A 1994-04-22 1995-04-10 Vorrichtung zur einstellung des druckkammervolumens einer vordruckpumpe Expired - Lifetime EP0756525B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9404858 1994-04-22
FR9404858A FR2719084B1 (fr) 1994-04-22 1994-04-22 Dispositif de réglage du volume d'une chambre de pompe d'une pompe à précompression.
PCT/FR1995/000455 WO1995029015A1 (fr) 1994-04-22 1995-04-10 Dispositif de reglage du volume d'une chambre de pompe d'une pompe a precompression

Publications (2)

Publication Number Publication Date
EP0756525A1 EP0756525A1 (de) 1997-02-05
EP0756525B1 true EP0756525B1 (de) 1998-07-01

Family

ID=9462413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95916731A Expired - Lifetime EP0756525B1 (de) 1994-04-22 1995-04-10 Vorrichtung zur einstellung des druckkammervolumens einer vordruckpumpe

Country Status (5)

Country Link
EP (1) EP0756525B1 (de)
DE (1) DE69503232T2 (de)
ES (1) ES2120198T3 (de)
FR (1) FR2719084B1 (de)
WO (1) WO1995029015A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3028571B1 (fr) 2014-11-14 2019-09-13 Aptar France Sas Pompe manuelle
FR3033844B1 (fr) 2015-03-20 2018-08-10 Aptar France Sas Pompe manuelle.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1101114A (fr) * 1953-05-22 1955-09-28 Kopa Kolner Parfuemerie Apothe Récipient distributeur de liquide en quantité réglable
GB8422019D0 (en) * 1984-08-31 1984-10-03 Semar Packaging Systems Ltd Assembly of co-operating parts
IT1219694B (it) * 1988-05-24 1990-05-24 Sar Spa Dispositivo di tenuta per pompette a mano erogatrici di prodotti in pasta o liquidi
FR2686377B1 (fr) * 1992-01-20 1994-03-25 Valois Pompe a precompression perfectionnee.

Also Published As

Publication number Publication date
WO1995029015A1 (fr) 1995-11-02
FR2719084B1 (fr) 1996-07-12
FR2719084A1 (fr) 1995-10-27
DE69503232D1 (de) 1998-08-06
EP0756525A1 (de) 1997-02-05
ES2120198T3 (es) 1998-10-16
DE69503232T2 (de) 1999-04-08

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