EP0769328B1 - Vorrichtung zum Aufbewahren eines Mediums mit einem Stützring einer handbetätigten Pumpe zur Abgabe einzelner Dosen - Google Patents

Vorrichtung zum Aufbewahren eines Mediums mit einem Stützring einer handbetätigten Pumpe zur Abgabe einzelner Dosen Download PDF

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Publication number
EP0769328B1
EP0769328B1 EP96402215A EP96402215A EP0769328B1 EP 0769328 B1 EP0769328 B1 EP 0769328B1 EP 96402215 A EP96402215 A EP 96402215A EP 96402215 A EP96402215 A EP 96402215A EP 0769328 B1 EP0769328 B1 EP 0769328B1
Authority
EP
European Patent Office
Prior art keywords
pump
ring
container
annular
neck
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
EP96402215A
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English (en)
French (fr)
Other versions
EP0769328A1 (de
Inventor
Denis Gaucher
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.)
D'INNOVATION RECHERCHE PLASTIQUE Ste
Innovation Recherche Plastique SA
Original Assignee
D'INNOVATION RECHERCHE PLASTIQUE Ste
Innovation Recherche Plastique SA
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 D'INNOVATION RECHERCHE PLASTIQUE Ste, Innovation Recherche Plastique SA filed Critical D'INNOVATION RECHERCHE PLASTIQUE Ste
Publication of EP0769328A1 publication Critical patent/EP0769328A1/de
Application granted granted Critical
Publication of EP0769328B1 publication Critical patent/EP0769328B1/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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • 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
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure

Definitions

  • the invention relates to the technical field of packaging of a product intended for distribution in unit doses using a manual pump.
  • the invention more specifically relates to a device for packaging and distributing a product, of the type known from EP-0 486 355, and comprising a container rigid external with open neck, a deformable internal container with open neck, this internal container being essentially housed in the external container and intended to contain the product to be packaged and distributed, and a manual pump, of the type without air entering the internal container, this pump being intended to dispense the product in doses unitary and being tightly mounted on the neck of the internal container using sealing means, the pump comprising a body having a cooperating tubular part with said sealing means and engaged with sealing in the neck of the internal container, for feeding of the product pump from the container internal, and the neck of the internal container being secured with sealing to a rigid annular ring, provided, at its external periphery, first fixing means which cooperate with complementary means of fixing the neck of the outer container, for fixing the inner container and the ring on the outer container, and at its periphery internal, second fixing means, which cooperate with additional fixing means for the pump body, for fixing the
  • Such a pump comprises generally a pusher, allowing, by finger pressure of the user, to move a piston in a pumping, the volume of which determines the dose to be dispensed.
  • a first closed valve isolates this chamber from the internal volume from the container, when the product is expelled from this chamber by a second open valve, under the effect of displacement of the piston by pressing on the pusher.
  • the second valve closes and isolates the room from the outside, when this chamber is filled with the first valve opened with a dose of product from the container, and drawn into the chamber by the return of the piston towards its initial position, pressing against a stop of a body of pump in which the piston slides, and under the action of elastic return means.
  • This aspiration of the product causes a depression in the container.
  • packaging and distribution devices of the type presented above, to which the invention relates, and comprising a deformable internal container, containing the product to be packaged and distributed and placed in a rigid external container, as well as a pump without inlet of air.
  • a deformable internal container containing the product to be packaged and distributed and placed in a rigid external container, as well as a pump without inlet of air.
  • This air intake is generally provided by the minus a passage in the bottom of the rigid container, but the air intake can also be carried out around the neck of this rigid container.
  • This phenomenon is particularly noticeable with aqueous, alcoholic and / or products containing one or more volatile materials.
  • a gas given off by the conditioned product or a vapor resulting from the evaporation of a volatile phase from this product can pass through the thin wall of the deformable container and escape to the outside through the passage reserved for the air intake.
  • Another solution already proposed to this problem consists of providing a non-return or unidirectional valve, placed in the passage or downstream of the passage intended for the air intake.
  • Such a valve lets air into the volume between the two containers, when the suction due to return of the pump piston to its rest position on requires, but prevents the outflow of gas and / or vapor whose presence in the volume between the two containers results from evaporation and passage of volatile phase (s) of the product contained in the container deformable through the thin wall of this container.
  • s volatile phase
  • non-return valves requires the manufacture and assembly of at least one additional part to make this valve, which increases not negligible the cost of the device.
  • the main object of the invention is to provide a device of the aforementioned type, for which there is no need to fear of loosening or any other failure of the means of fixing the pump to the containers, or concomitant or independent deterioration of the seal between the pump and the internal container, while giving the device a simple structure, economical manufacturing.
  • a second object of the invention is to remedy a disadvantage stated above, by proposing a structure of packaging and distribution device that does not require no additional parts to make a valve non-return allowing the entry of outside air into the volume between the two containers and opposing the outlet of gas or vapor of this volume.
  • said sealing means comprise at least one seal annular seal reported between said ring and said tubular part and surrounding the latter being spaced said second fixing means and fixing means complementary towards the outside of the internal container.
  • said first and second means for fixing the ring and said additional fixing means for the container neck external and pump body are fixing means removable by elastic snap, with protrusions external radials displaced axially beyond protrusions facing internal radials, to ensure the hooking of the ring on the outer container and the pump body on the ring.
  • the ring comprises, at its periphery internal, an internal tubular part, having said second fixing means, and in which is engaged said tubular part of the pump body, which has said complementary fixing means, said seal annular seal being mounted between said part inner tubular of the ring and said tubular part of the pump body so that the seal can get move axially between said tubular parts without that it affects the seal it provides.
  • the hanging of the pump on the intermediate ring thus has no influence on sealing, and vice versa.
  • the ring includes advantageously, at its outer periphery, a part external tubular having said first means of fixing and engaged in said neck of the outer container, with which said additional fixing means are provided protrusions and / or depressions having complementary shapes coupling to said first means for fixing the Ring.
  • the second object of the invention namely admission outside air in the volume between the containers, without non-return valve, and by opposing the outlet outside this volume of any gas or vapor from the packaged product and having migrated through the wall of the container internal, is achieved by the fact that the external container is fully closed and at least one of said ring and said collar delimits at least partially, outside said sealing means, at least a first entry passage air in the volume delimited between the two containers, and the pump body present, also outside said sealing means, at least one second inlet passage of air in said volume between the containers, so that said first and second air inlet passages define in succession a duct allowing the entry of air outside in the volume between the containers at least when the pump is activated, and the device comprises of plus means of containment of any part of the product passing through the deformable wall of the internal container from the interior volume of the latter towards the volume between the containers, and tending to escape outward through the air inlet duct, at least when the pump is not operated.
  • the first air inlet passage is provided, between the outer periphery of the ring and the neck of the external container, by said first fixing means of the ring and said complementary fixing means of the neck of the outer container, and using at least one recess formed in said ring and / or in said neck of the outer container.
  • the duct air inlet is permanently open and the means to containment may include a sealed cover, attaching removably and tightly on the device, around the pump and container necks, and the inlet pipe air comes out inside the cover when the cover is attached to the device.
  • a cover which such a device generally comprises, so no additional parts are required.
  • said air inlet passages are in constant communication with each other, and containment means include said stopper, which has an annular part forming a seat that is sealed in contact with an annular part of the piston, which allows air to pass through from outside the device to said inlet passages air as soon as said annular part of the piston is moved away of said annular part of the stop by manual pressing on said pusher.
  • pump body stopper is integral with an internal tubular jacket of the body of pump and projecting towards the inside of said jacket internal, which surrounds a cylinder of the pump body in which said piston is slidably mounted with sealing, said second air inlet passage comprising at least one channel delimited between, on the one hand, said cylinder, and, on the other hand, said inner jacket and said stopper, a end of said channel opening towards the outside of said body pump, between said stopper and said piston as soon as the piston is moved away from the stop by manual pressure on the pusher, while the other end of said channel opens out permanently in an annular space delimited between the pump body and ring, and itself in communication permanent with said first air inlet passage.
  • this volume enters the containers contain at least one chemical substance or substance capable of fixing a contained gas and / or vapor- (e) in the outside air admitted into this volume, to avoid the diffusion of this gas or this vapor through the wall of the internal container and towards the product in the volume inside the latter.
  • this body chemical can fix oxygen from air or water vapor contained in the outside air, and whose diffusion towards inside the deformable container, through the wall of the latter, would have the effect of degrading the products sensitive to oxidation or humidity.
  • the device has passages air intake and containment means, as shown above, it is further advantageous to facilitate the mounting the pump on the external container, mounting the pusher on the pump body and the operation of the pump, that the body includes an external tubular jacket surrounding said cylinder and internal jacket and delimiting with them, on the pump body, an annular chamber of housing and supporting an end portion of at least one helical compression spring of said return means elastic, and the other end portion of which is housed at inside a first tubular skirt, integral with the pump plunger, and having its free end engaged in said annular chamber of the pump body, said jacket external being itself surrounded by a second tubular skirt, integral with the pump body, and fitted into the neck of the outer container.
  • the tubular part of the pump body extends substantially the cylinder of said body and is integral with a bottom at one end of the cylinder which faces the internal container, said bottom being pierced with at least one cylinder filling port with product from the internal container, and carrying at least one inlet valve of the pump, intended to selectively seal and release said filling port
  • said pump piston being annular and extended, beyond the other end of the cylinder of the body, by a chimney mounted sliding in said annular stop of the body, and in which is mounted sliding, on a limited stroke, a distribution tube of said pusher, said tube being integral in translation a tubular rod, of which it extends the central channel, and which slides tightly in said chimney and is closed in the annular piston by an outlet valve of the pump, applied tightly against the piston annular by the action of the elastic return means, and moved away from the piston by action on the pusher, to allow the product outlet between the piston and the outlet valve, from inside the cylinder to inside the rod tubular
  • the packaging and distribution includes a container 1 internal and deformable, also called flexible pocket, of which the essentially cylindrical body with closed and domed bottom inwards has a flexible wall made of material thin plastic, which opens outwards by a collar 2 tightened relative to its body, and provided a rim 3 flared outwards and gradually thicker increasing to its outer radial periphery.
  • the pocket 1 is securely joined to the outer face of a ring rigid annular 4, molded in one piece from material plastic and having, between two tubular parts external 5 and internal 6, respectively at its peripheries external and internal, a radial annular collar 7 and a central part 8 cylindro-conical, with a rib annular 8c projecting axially and chamfered inwards of the internal tubular part 6, in its portion frustoconical 8b, and projecting ribs 8d projecting axial in its cylindrical 8a and frustoconical portions 8b, for positioning the pump body as described below.
  • the lower end (towards the inside of pocket 1) of the part internal tubular 6 has an annular redent 6a in inwardly projecting radially, while for the fixing of the ring 4 in an external container, as described below with reference to Figure 2, the area upper 5a of the outer tubular part 5 is in projecting radially outward from its area lower 5b.
  • at least one axial groove 5c is formed in the external face of the external tubular part 5.
  • the watertight attachment of pocket 1 to the ring 4 is provided for example by ultrasonic welding, or by any other welding method, from the neck 2 and the flared rim 3 around the internal tubular part 6, of the part central 8 and under the collar 7 of the ring 4, up against the lower zone 5b of the external tubular part 5 of this ring 4.
  • FIG. 2 represents an external container and rigid 9 of protection, molded in one piece in material plastic, whose cylindrical body with closed bottom 9a opens outwards by a neck 10 also cylindrical, in the extension of his body.
  • the open neck 10 of the container external 9, also called bottle present, close from its upper end, an annular redent 10a in inwardly projecting radially and separated by a recess or annular recess 10b of an annular shoulder 10c in radial projection inwards and axially towards the bottom 9a of the bottle 9 relative to the redent 10a.
  • the dimensions of the redent 10a, hollow 10b and shoulder 10c of neck 10 of bottle 9 and those of the protruding areas 5a and recessed 5b of the periphery of the ring 4 are such that the pocket assembly 1-ring 4 can be introduced into the bottle 9 and fixed in the neck 10 of the latter by elastic snap in force the projection 5a of the ring 4 in the hollow 10b of the neck 10, between the redent 10a and the shoulder 10c of this neck, as shown in figure 2.
  • the device also includes a manual pump 11, according to FIG. 3, for dispensing in unit doses a product stored in flexible bag 1 without leaving air outside enter this pocket 1, and the pump 11 includes a body 12, which is fixed by elastic snap-fastening on the ring 4, and a pusher 13 movably mounted on the body 12 and manually operated by the user to dispense doses of the product, body 12 and pusher 13 each being made of plastic.
  • the body 12 comprises a central cylinder 14, open at its upper end and closed at its lower end by a bottom 15 pierced with orifices supply 16 around a central tubular core 17 of the bottom 15.
  • a inlet valve 18 which is an annular elastic membrane pressing against the bottom 15, on the inside side of the cylinder 14, and kept applied by its central part against the core 17 by a pin 19 with an enlarged head and with a body force-fitted and resiliently snapped on, or fixed and retained in any other way, in nucleus 17.
  • the cylinder 14 extends substantially axially by a tubular part 20, surrounding the core 17 to which it is secured by radial ribs 20a of stiffening, and having at its lower end a projecting annular redent 20b radial towards the outside, to cooperate with the redent 6a in protruding towards the inside of the ring 4, so as to allow the force 12 elastic snap on the body the ring 4 by fitting the tubular part 20 of the body 12 in the internal tubular part 6 of the ring 4 and force locking of the redent 20b axially beyond and below of the redent 6a, towards the inside of the flexible pocket 1.
  • the seal between the tubular part 20 of the body pump 12 and ring 4 is provided by an O-ring 21 mounted around the tubular part 20 and retained axially between the redent 20b and external axial ribs 20c on the bottom side 15.
  • These external ribs 20c of the tubular part 20 ensure that the seal 21, when mounting the pump 11 on the ring 4, remains between the tubular part 20 of the pump body 12 and the tubular part 6 of the ring 4, and can move axially over a limited stroke between these two tubular parts, without interfering with the mechanical means for fixing the pump body 12 to the ring 4.
  • the seal provided by the seal 21 has no influence on the attachment of the pump body 12 to the ring 4, and vice versa.
  • the assembly consisting of cylinder 14, bottom 15 with the core 17, and the tubular part 20 with the ribs 20a and 20c and the redent 20b is molded in one piece internal plastic material.
  • the pump body 12 also includes a part external molded in one piece from plastic and comprising an internal cylindrical jacket 22, surrounding the cylinder 14, an external cylindrical jacket 23, which surrounds with radial spacing the inner jacket 22 so as to delimit between them a closed annular chamber 24, of the side of the tubular part 20, by an annular bottom 25 joining the two shirts 22 and 23 by their ends lower, and finally an outer skirt 26, which surrounds with radial spacing the outer jacket 23 and which is integral of the latter on the one hand, by an annular collar and radial 27 connecting them by their upper ends, and, on the other hand, by radial ribs 26a of stiffening.
  • the upper end of the inner liner 22 is secured to a radial annular bottom 28, projecting towards inside a short axial distance beyond the end upper part of cylinder 14, and the central passage of annular bottom 28 is delimited by an axial tubular collar 29 for guiding a piston rod, as described below.
  • This end piece 30 and this redent 31 cooperate with a radial projection outwards 14a, presented by the lower end of the cylinder 14, around the bottom 15, to allow the latching elastic by force of the internal part, consisting of cylinder 14, bottom 15, core 17 and part tubular 20, inside the outer part of the body of pump 12, this external part consisting of the liners 22 and 23, bottoms 25 and 28, skirt 26 and collars 27 and 29, as well as the end piece 30 and the redent 31.
  • this annular chamber 33 communicates freely with the annular chamber 34 delimited between the external shirt 23 and the skirt 26 and the neck 10 of the bottle 9, in which this skirt 26 is fitted elastically and axially when the pump body 12 is mounted on the ring 4, without tight contact of the lower end part of the outer jacket 23 with the cylindrical part 8a of the ring 4.
  • this annular chamber 34 is in permanent communication with volume 35 delimited between the two containers 1 and 9, thanks to the axial passage formed by the axial groove 5c in parts 5a and 5b of the tubular periphery 5 of the ring 4, ensuring its snap-fastening elastic in the neck 10 of the bottle 9.
  • a pumping and metering chamber 36 is delimited in the cylinder 14, between its bottom 15 and the inlet valve 18, at its lower end, and, towards its end upper, an annular piston 37 slidably mounted with tightness in cylinder 14 thanks to a seal O-ring 38 housed in a peripheral groove of the piston 37.
  • the piston 37 extends, towards the outside of cylinder 14, by a chimney 39 which passes through the axial tubular collar 29 of the annular bottom 28 of the inner jacket 22 and is mounted sliding in this collar 29 without sealing.
  • a valve outlet 40 integral with a tubular rod 41 slidingly mounted with sealing in the chimney 39 of the piston 37 thanks to an O-ring 42 retained in a groove of its periphery, and the valve 40 carries, on its turned side towards its rod 41, an annular seal 43 in look of an annular radial shoulder 37a connecting the annular piston 37 at its chimney 39. Between the seals sealing 42 and 43, the tubular rod 41 is pierced radial holes 44.
  • the plunger 13 of the pump 11 comprises a tube distribution 45 in two substantially perpendicular parts to each other, one of which 45a is radial at the end upper pusher 13, and the other 45b is axial and central, and engaged in the chimney 39 so as to ability to slide in the latter on an axial stroke limited by the abutment of the upper end 39a from this chimney 39 against the upper part of the pusher 13 and the radial part 45a of its distribution tube 45.
  • the tubular rod 41 is axially engaged inside the axial part 45b of the distribution tube 45 until it stops at its upper end 41a against an internal radial shoulder 45c of this part axial 45b, and so that the tubular rod 41 is secured to this axial part 45b by snap-fastening to strength and elasticity of a redent 41b projecting radially towards the outside on the rod 41 and housed in a circular groove of corresponding shape of the inner wall of the tubular axial part 45b, as visible in FIG. 4.
  • the tubular rod 41 and the outlet valve 40 are integral with the axial displacements of the pusher 13 by relative to the pump body 12, to activate the pump 11 by support of the user on the pusher 13 towards the body of pump 12 and the receptacles 1 and 9.
  • the pusher 13 has an outer skirt 46 which surrounds with spacing radial the axial and central part 45b of the pusher 13 as well that the chimney 39 and the tubular rod 41, and such that the lower end of the skirt 46 is fitted without waterproof and can slide in the annular chamber 24 between the two tubular liners 22 and 23 of the body pump 12.
  • This skirt 46 axially guided in the chamber annular 24 during axial movements of the pusher 13 by relation to the pump body 12, surrounds, houses and protects the upper end part of a coil spring of compression 47, which is supported by its upper end against internal ribs 46a of the skirt 46, while the lower end part of the spring 47 is housed in the annular chamber 24 and is supported by its end lower against projecting axial ribs 22a on the lower end of the inner liner 22 and towards inside the annular chamber 24.
  • the spring 47 recalls the pusher 13, the valve outlet 40 and the piston 37 in the rest position, in which the pusher 13 is pushed axially to the maximum in the direction which moves it away from the pump body 12, and in which the outlet valve 40 is closed, because in support sealed by its annular seal 43 against the shoulder 37a piston 37, the latter itself being in abutment by its annular part 37b, projecting on its face facing the annular bottom 28, against this bottom 28, which thus constitutes a watertight closing seat of the axial channel 32 between cylinder 14 and jacket 22, to cut the outside air intake towards this channel 32.
  • the outside air can freely enter the annular chamber 24, passing between the skirt 46 of pusher 13 and outer jacket 23 of body pump 12, then move from room 24 to room annular 48, between the skirt 46 and the chimney 39, then between the chimney 39 and the tubular collar 29 and the annular bottom 28 up to the air inlet valve formed by the part annular 37b of the piston 37, and which is closed when this part 37b is in abutment against the bottom 28, in the position initial or rest of Figure 4.
  • the outside air intake circuit up to the annular part 37b of the piston 37, then of this part 37b as far as the volume 35 between the two containers 1 and 9 is indicated by arrows and a broken line. This input circuit air is closed, as explained above, when the pump He is at rest.
  • Chamber 36 having been filled with product, a new operation on the pusher 13 produced, as described previously, the opening of the valve 40 and therefore the setting communication of chamber 36 with the distribution tube 45, then the displacement of the piston 37 in the cylinder 14, this which expels the product contained in the pumping chamber and metering 36 outwards because the inlet valve 18 remains closed due to deletion in room 36.
  • the relaxation of the pusher 37 drives, under the action of the return spring 47, and as described above, closing the valve outlet 40, the piston 37 returns to the initial position and the opening of the inlet valve 18, for the admission of a new dose of product in room 36.
  • Figure 5 shows the dispenser whose pump 11 is at rest, after at least one operation of the pusher 13, so that the chamber 36 contains a dose of product.
  • the two valves 18 and 40 are closed, as is the air inlet circuit in the intermediate volume 35, by the annular part 37b of the piston 37 in abutment against the bottom annular 28 of the inner liner 22.
  • Figure 6 shows the dispenser, during dispensing a dose of product, the pusher 13 being pressed by manual user action, indicated by arrow F1 the outlet valve 40 being open and the inlet valve 18 closed, piston 37 being pushed into the cylinder 14, so the product of chamber 36 is driven out by the distribution tube 45, as indicated by the arrows F2.
  • the flexible pocket 1 of the entire Figure 2 is filled with product before assembling the pump of figure 3 on the whole of figure 2 by elastic snap-fitting of the pump body 12 by its part tubular 20 in the inner tubular part 6 of the ring 4 of this set.
  • This click-in is ensured by the axial passage of the redent 20b beyond the redent 6a, the seal being provided by the seal 21 between the pump body 12 and the ring 4.
  • the annular part 37b of the piston 37 and the annular bottom 28 of the inner jacket 22 thus constitute means for confining gases and / or vapors which could accumulate in volume 35 between containers 1 and 9, since this volume is not in communication permanent with the outside of the pump 11, because the presence of these means of containment on the way of air intake, which however allow the entry of air outside in this intermediate volume 35 as soon as the pump 11 is actuated, to compensate for the depression created in this volume 35 by the operation of the pump 11.
  • a simple remedy for this problem is to introduce into the volume 35, when fitting the entire flexible bag 1 and the ring 4 in the rigid bottle 9, a substance or a chemical body capable of fixing or absorbing this gas or this vapor.
  • the cylinder 14 and the internal jacket 22 can be a single piece, without an axial channel of air 32, and the volume 35 between the two containers 1 and 9 can be vented through an air inlet provided by a hole in the bottom of the container 9, or even through a hole in the outer jacket 23 or in the part of the skirt 26 which is not fitted into the neck 10 of the container 9.

Landscapes

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

Claims (11)

  1. Vorrichtung zum Aufbewahren und Ausgeben eines Produktes, welche aufweist:
    einen starren äußeren Behälter (9) mit offenem Hals (10),
    einen verformbaren inneren Behälter (1) mit offenem Hals (2), wobei der innere Behälter (1) im wesentlichen innerhalb des äußeren Behälters (9) aufgenommen und zum Aufnehmen eines aufzubewahrenden und auszugebenden Produktes vorgesehen ist, und
    eine manuelle Pumpe (11) von der Art ohne Lufteintritt in den inneren Behälter (1), wobei die Pumpe dazu vorgesehen ist, das Produkt in Einheitsdosen auszugeben und mit Hilfe von Dichtungseinrichtungen (21) dichtend auf dem Hals (2) des inneren Behälters (1) angebracht ist,
    wobei die Pumpe (11) einen Körper (12) mit einem röhrenförmigen Abschnitt (20) aufweist, der mit den Dichtungseinrichtungen (21) zusammenwirkt und dichtend mit dem Hals (2) des inneren Behälters (1) in Eingriff steht, zum Zuführen von Produkt aus dem inneren Behälter (1) zu der Pumpe (11), und der Hals (2) des inneren Behälters (1) dichtend mit einem ringförmigen starren Einsatz (4) fest verbunden ist, der an seinem Außenumfang mit ersten Befestigungseinrichtungen (5a, 5b) versehen ist, die mit komplementären Befestigungseinrichtungen (10a, 10b, 10c) des Halses (10) des äußeren Behälters (9) zusammenwirken, zum Befestigen des inneren Behälters (1) und des Einsatzes (4) an dem äußeren Behälter (9), und an seinem Innenumfang mit zweiten Befestigungseinrichtungen (6a), die mit komplementären Befestigungseinrichtungen (20b) des Pumpenkörpers (12) zum Befestigen der Pumpe (11) am Einsatz (4) zusammenwirken, wobei der röhrenförmige Abschnitt (20) des Pumpenkörpers (12) in dem Einsatz (4) in Eingriff steht, und die Dichtungseinrichtungen die Dichtigkeit zwischen dem Einsatz (4) und dem röhrenförmigen Abschnitt (20) des Pumpenkörpers (12) herstellen und von den zweiten Befestigungseinrichtungen (6a) des Einsatzes (4) und den komplementären Befestigungseinrichtungen (20b) des Pumpenkörpers (12) beabstandet sind,
    dadurch gekennzeichnet, daß die Dichtungseinrichtungen mindestens eine ringförmige Dichtung (21) aufweisen, welche zwischen den Einsatz (4) und den röhrenförmigen Abschnitt (20) eingesetzt ist und diesen letzteren umgibt, wobei sie von den zweiten Befestigungseinrichtungen (6a) und den komplementären Befestigungseinrichtungen (20b) zur Außenseite des inneren Behälters (1) hin beabstandet ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die ersten (5a, 5b) und zweiten Befestigungseinrichtungen (6a) des Einsatzes (4) und die komplementären Befestigungseinrichtungen (10a, 10b, 10c, 20b) des Halses (10) des äußeren Behälters (9) und des Pumpenkörpers (12) Einrichtungen zum lösbaren Befestigen mittels einer elastischen Schnappverbindung sind, mit radialen äußeren Vorsprüngen (5a, 20b), die in Axialrichtung über gegenüberliegende radiale innere Vorsprünge (10a, 6a) verschoben werden, um das Festlegen des Einsatzes (4) auf dem äußeren Behälter (9) und des Pumpenkörpers (12) auf dem Einsatz (4) zu ermöglichen.
  3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Einsatz (4) an seinem Innenumfang einen röhrenförmigen inneren Abschnitt (6) aufweist, der die zweiten Befestigungseinrichtungen (6a) aufweist, und in dem der röhrenförmige Abschnitt (20) des Pumpenkörpers (12) in Eingriff steht, wobei der röhrenförmige Abschnitt (20) die komplementären Befestigungseinrichtungen (20b) aufweist und die ringförmige Dichtung (21) zwischen dem röhrenförmigen inneren Abschnitt (6) des Einsatzes (4) und dem röhrenförmigen Abschnitt (20) des Pumpenkörpers (12) angebracht ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Einsatz (4) an seinem Außenumfang einen röhrenförmigen äußeren Abschnitt (5) aufweist, der die ersten Befestigungseinrichtungen (5a, 5b) aufweist und in dem Hals (10) des äußeren Behälters (9) in Eingriff steht, dessen komplementäre Befestigungseinrichtungen mit Vorsprüngen (10a, 10c) und/oder Ausnehmungen (10b) mit komplementärer Formgebung zum Ankoppeln an die ersten Befestigungseinrichtungen (5a, 5b) des Einsatzes (4) versehen sind, um das Festlegen des Einsatzes (4) an dem Hals (10) des äußeren Behälters (9) nach dem Einführen des inneren Behälters (1) und des Einsatzes (4) in den äußeren Behälter (9) zu ermöglichen.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der äußere Behälter (9) einen geschlossenen Boden (9a) aufweist und mindestens der Einsatz (4) einerseits und/oder die Hälse (2, 10) andererseits zumindest teilweise auf der Außenseite der Dichtungseinrichtungen (2) mindestens eine erste Passage (5c) für den Eintritt von Luft in das zwischen den beiden Behältern (1, 9) begrenzte Volumen (35) begrenzt, und der Körper (12) der Pumpe (11), ebenfalls auf der Außenseite der Dichtungseinrichtungen (21), mindestens eine zweite Passage (32) für den Eintritt von Luft in das Volumen (35) zwischen den Behältern (1, 9) aufweist, so daß die erste und die zweite Lufteintrittpassage (5c, 32) aufeinanderfolgend eine Leitung begrenzen, die den Eintritt von Außenluft in das Volumen (35) zwischen den Behältern (1, 9) zumindest dann gestattet, wenn die Pumpe (11) betätigt wird, und die Vorrichtung des weiteren Einrichtungen (37b, 28) zum Einschließen eines jeglichen Teils des Produkts aufweist, das durch die verformbare Wandung des inneren Behälters (1) aus dem Inneren dieses letzteren auf das Volumen (35) zwischen den Behältern (1, 9) hin durchtritt und dazu neigt, durch die Lufteintrittleitung (5c, 34, 33, 32) nach außen hin auszutreten, zumindest wenn die Pumpe (11) nicht betätigt wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die erste Lufteintrittpassage zwischen dem Außenumfang (5) des Einsatzes (4) und dem Hals (10) des äußeren Behälters (9) durch die ersten Befestigungseinrichtungen (5a, 5b) des Einsatzes (4) und die komplementären Befestigungseinrichtungen (10a, 10b, 10c) des Halses (10) des äußeren Behälters (9) und mittels zumindest einer in dem Einsatz (4) und/oder in dem Hals (10) des äußeren Behälters (9) vorgesehenen Ausnehmung (5c) vorgesehen ist.
  7. Vorrichtung nach einem der Ansprüche 5 und 6, deren Pumpe (11) von der Art mit einem Kolben (37) ist, der durch die Wirkung von elastischen Rückstelleinrichtungen (47) in die Ruhestellung der Pumpe (11) in Anlage gegen einen Anschlag (28) des Körpers (12) der Pumpe (11) gebracht wird, und beim Betätigen der Pumpe (11) durch manuelles Niederdrücken einer Druckvorrichtung (13) entgegen den elastischen Rückstelleinrichtungen (47) von dem Anschlag (28) wegbewegt wird, dadurch gekennzeichnet, daß die Lufteintrittpassagen (5c, 32) in ständiger Verbindung miteinander stehen, und die Einschließeinrichtungen den Anschlag (28) mit einem ringförmigen Abschnitt aufweisen, der bei Anlage an einen ringförmigen Abschnitt (37b) des Kolbens (37) einen dichtenden Sitz bildet, und der Luft von der Außenseite der Vorrichtung zu den Lufteintrittpassagen (5c, 32) hin durchtreten läßt, wenn der ringförmige Abschnitt (37b) des Kolbens (37) durch manuelles Niederdrücken der Druckvorrichtung (13) von dem ringförmigen Abschnitt des Anschlags (28) wegbewegt wird.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Anschlag (28) des Pumpenkörpers (12) fest mit einer röhrenförmigen inneren Hülse (22) des Pumpenkörpers (12) verbunden ist und zur Innenseite der inneren Hülse (22) hin vorspringt, die einen Zylinder (14) des Pumpenkörpers (12) umgibt, in dem der Kolben (37) gleitverschieblich mit einer Abdichtung (38) gelagert ist, wobei die zweite Lufteintrittpassage mindestens einen Kanal (32) aufweist, der zwischen dem Zylinder (14) einerseits und der inneren Hülse (22) und dem Anschlag (28) andererseits begrenzt ist, und ein Ende des Kanals (32) sich zur Außenseite des Pumpenkörpers (12) hin zwischen dem Anschlag (28) und dem Kolben (37) öffnet, wenn der Kolben (37) durch manuelles Niederdrücken der Druckvorrichtung (13) von dem Anschlag (28) wegbewegt wird, während das andere Ende des Kanals (32) ständig in einen ringförmigen Raum (33) mündet, der zwischen dem Pumpenkörper (12) und dem Einsatz (4) begrenzt ist und selbst in ständiger Verbindung mit der ersten Lufteintrittpassage (5c) steht.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Pumpenkörper (12) eine röhrenförmige äußere Hülse (23) aufweist, welche den Zylinder (14) und die innere Hülse (22) umgibt und mit diesen auf dem Pumpenkörper (12) eine ringförmige Kammer (24) zum Aufnehmen und Abstützen eines Endabschnittes mindestens einer Druckschraubenfeder (47) der elastischen Rückstelleinrichtungen begrenzt, deren anderer Endabschnitt im Inneren eines ersten röhrenförmigen Mantels (46) aufgenommen ist, der fest mit der Druckvorrichtung (13) der Pumpe verbunden ist und dessen freies Ende in der ringförmigen Kammer (24) des Pumpenkörpers (12) in Eingriff steht, wobei die äußere Hülse (23) wiederum von einem zweiten röhrenförmigen Mantel (26) umgeben ist, der fest mit dem Pumpenkörper (12) verbunden ist und in den Hals (10) des äußeren Behälters (9) eingesetzt ist.
  10. Vorrichtung nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, daß der röhrenförmige Abschnitt (20) des Pumpenkörpers (12) im wesentlichen den Zylinder (14) des Körpers (12) verlängert und mit einem Boden (15) des Zylinders (14) an einem zum inneren Behälter (1) hin gewendeten Ende fest verbunden ist, wobei der Boden (15) von mindestens einer Öffnung (16) zum Befüllen des Zylinders (14) mit Produkt aus dem inneren Behälter (4) durchsetzt ist und mindestens eine Einlaßklappe (18) der Pumpe (11) zum selektiven Verschließen und Freigeben der Befüllöffnung (16) trägt, der Kolben (37) der Pumpe (11) ringförmig und durch eine in dem ringförmigen Anschlag (28) des Körpers (12) gleitverschieblich gelagerte Führung (39) über das andere Ende des Zylinders (14) des Körpers (12) hinaus verlängert ist, in der eine Ausgaberöhre (45b) der Druckvorrichtung (13) auf einer begrenzten Strecke gleitverschieblich gelagert ist, wobei die Röhre (45b) als Einheit mit einer röhrenförmigen Stange (41) verschiebbar ist, deren mittleren Kanal sie verlängert, und die mit Dichtung (42) in der Führung (39) verschiebbar und in dem ringförmigen Kolben (37) durch eine Auslaßklappe (40) der Pumpe (11) verschlossen ist, die durch die Wirkung der elastischen Rückstelleinrichtungen (47) mit Dichtung (43) gegen den ringförmigen Kolben (37) in Anlage gebracht wird und durch Einwirken auf die Druckvorrichtung (13) vom Kolben (37) wegbewegt wird, um den Austritt des Produktes zwischen dem Kolben (37) und der Auslaßklappe (40) aus dem Inneren des Zylinders (14) zur Außenseite der röhrenförmigen Stange (41) hin über mindestens eine radiale Öffnung (44) der Stange (41) zu ermöglichen.
  11. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Volumen (35) zwischen den Behältern (1, 9) mindestens einen chemischen Körper enthält, der ein Gas und/oder einen Dampf, das bzw. der in der in dieses Volumen (35) eingelassenen Außenluft enthalten ist, binden kann, um sein Diffundieren durch die Wandung des inneren Behälters (1) und auf dessen Innenvolumen hin zu verhindern.
EP96402215A 1995-10-19 1996-10-16 Vorrichtung zum Aufbewahren eines Mediums mit einem Stützring einer handbetätigten Pumpe zur Abgabe einzelner Dosen Expired - Lifetime EP0769328B1 (de)

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FR9512300A FR2740114B1 (fr) 1995-10-19 1995-10-19 Dispositif de conditionnement d'un produit avec bague de support d'une pompe manuelle de distribution en doses unitaires
FR9512300 1995-10-19

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ES2141453T3 (es) 2000-03-16
FR2740114B1 (fr) 1998-01-02
US5813571A (en) 1998-09-29
FR2740114A1 (fr) 1997-04-25
EP0769328A1 (de) 1997-04-23
DE69605267D1 (de) 1999-12-30
DE69605267T2 (de) 2000-07-13

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