EP3352913A1 - Systeme de distribution sans air avec pompe - Google Patents
Systeme de distribution sans air avec pompeInfo
- Publication number
- EP3352913A1 EP3352913A1 EP16785209.4A EP16785209A EP3352913A1 EP 3352913 A1 EP3352913 A1 EP 3352913A1 EP 16785209 A EP16785209 A EP 16785209A EP 3352913 A1 EP3352913 A1 EP 3352913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- push button
- dispensing system
- pump
- rigid support
- 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.)
- Granted
Links
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
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
-
- 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
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0072—A valve member forming part of an outlet opening
-
- 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
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
-
- 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
-
- 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
- B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
-
- 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
Definitions
- the present invention relates to a distribution system without air also called “airless”, that is to say without air intake so that the dispensed product is never in contact with the air before distribution, the dosage being provided by means of a non-return pump integrated in said system.
- This type of airless distribution system is used in particular for the distribution of products that are likely to deteriorate in contact with the air. It may be pharmaceutical products or cosmetic products such as care creams, of fluid consistency, that is to say liquid or pasty.
- the fluid product is packaged in a retractable container so that the volume of the container corresponds precisely at any time of use to the residual amount of the product it contains, the product never being in contact with the air at all. inside the container.
- such dispensers comprises a pump with a variable volume distribution chamber provided with an inlet connected to the container, and an outlet for discharging the product to be dispensed.
- the most accurate system is to operate a piston by a movement back and forth in a cylinder.
- This is the most conventional design for an airless distributor pump, the opening and closing movements at the inlet and outlet of the distribution chamber being made by means of valves made of balls or mobile rigid flaps.
- the advantage of the ball is that it is smaller, which makes it possible to have a pump of smaller size.
- a first system without air is airtight from the container to a first valve located immediately out of the dispensing chamber.
- a second airless system called “full airless” is airtight from the container to the exhaust port. The second system is still much more complex and more expensive than the first.
- the object of the invention is to provide an airless distribution system that is both efficient and simple to manufacture while keeping the traditional architecture of a pump whose distribution chamber is constituted by a sliding piston in a cylinder.
- the dispensing system according to the invention is intended to be fixed on a container in which is packaged a fluid product.
- Said dispensing system comprises a pump, two inlet and outlet check valves respectively, an elastic return means and a push button.
- Said pump is set in motion by a pushing action on the push button connected to said pump.
- the distribution system is characterized in that:
- - It consists of three pieces of one-piece structure: a rod, a hoop and a push button; the three one-piece pieces support the resilient return means and cooperate with one another to ensure the dispensing of the fluid product under the effect of the thrust exerted on the push button from the container to a discharge orifice;
- the two inlet and outlet check valves each consist of a valve mounted to bear on a rigid support to which said valve is connected by a fixed connection;
- At least one valve has a flexible and deformable peripheral area not perforated, located opposite the rigid support;
- the rigid wall is perforated by at least one orifice located vis-à-vis the peripheral zone;
- the peripheral zone has a substantially conical shape before mounting with a large base, a small base and an inner face of the inner side of the large base of the cone;
- peripheral zone has a deformation consecutive to the support of the inner face of the large base on the rigid support (24, 52) in the assembled position.
- the system comprises only three structural parts: the rod, the hoop and the push button, with a spring and two valves.
- the invention thus makes it possible to merge with a common constituent a dosing function, that is to say the motor function performed by the push button and the pump, and a distribution function, that is to say conveying the fluid product from the container to an outlet orifice where the discharge channel opens, these functions being performed by means of three structural parts.
- the anti-return valves consist of a non-return valve comprising a flexible wall disposed opposite the rigid support and mounted in support or prestress bearing on said rigid support to which said valve is connected by a fixed connection.
- the rigid support is perforated with at least one passage disposed vis-à-vis the flexible wall.
- the inlet valve consists of a valve resting on the rigid support part of the hoop.
- the outlet valve consists of a valve resting on the rigid support part of the rod or the push button according to the selected solution. Before assembly, the valve has a conical peripheral zone. In the assembled position, said peripheral zone has a deformation of the flattening type and induces elongation subsequent to the bearing of the inner face of the large base on the rigid wall. This elongation induces a considerable bearing force, much greater than a non-elastic deformation, which ensures tightness when the dispensing system is "at rest” including if the container is overpressure.
- the dispensing system is "idle" when the pressures inside the container and inside the pump and the atmospheric pressure are the same.
- the pressure variation in the distribution chamber will deform the flexible wall and allow the opening of the valve.
- the valve is connected to the rigid wall by a fixed non-deformable connection
- a fixed non-deformable connection means that only a portion of the valve ensuring the connection to the rigid wall is fixed and not deformable.
- This fixed part made of flexible polymer, is located in the center of the valve.
- the flexible peripheral zone extends radially outwardly from this attachment zone.
- the attachment zone may, for example, consist of a flexible chimney part of the clamshell on a rigid rod connected to the rigid wall.
- the assembly of the flexible chimney and the rigid rod constitutes a rigid and waterproof assembly. The assembly thus produced can withstand an upstream pressure higher than 6 bars.
- the fixing zone can not perform any movement in translation, rotation or deformation of any type with respect to the rigid wall.
- the pump comprises a distribution chamber consisting of a piston sliding in a pump cylinder and a first evacuation channel.
- the pump thus acts as both pump and first evacuation channel
- the hoop comprises the cylinder of the pump, a first sealing means of the container to the distribution system and the rigid bearing support of the valve of the inlet valve.
- the valve is constituted by said valve mounted to bear on said rigid support support.
- the hoop equipped with the inlet valve acts as a cumulative sealing connection between the container in which the fluid product is conditioned and the distribution system, the inlet valve in the distribution chamber, and finally the first component cylinder of the cylinder. distribution chamber.
- the rod comprises the piston, the first discharge channel, and a second sealing means with the push button.
- the rod is hollow throughout its length to form the first product discharge channel from the dispensing chamber to the push button.
- the rod acts as a piston of the pump, the first exhaust pipe, and sealing connection with the push button.
- the push button is connected to the rod by the second connection means of said rod and comprises a second evacuation channel.
- the second evacuation channel connects the first discharge channel housed in the rod to the discharge port housed in said push button.
- the push button is fixedly connected to the rod so that the pressing action on the push button causes the movement of the rod and by the same that of the piston in the cylinder.
- the push button may for example be fitted on the rod.
- the outlet is the outlet of the second exhaust channel on the outside.
- the rod comprises a rigid support disposed at the outlet end of the first discharge channel, and the outlet valve is constituted by the valve mounted to bear on said rigid support.
- the stem has two ends.
- the piston is disposed at a first end of the rod.
- the exit end is the second end of the rod.
- the rod is a one-piece assembly that integrates the rigid bearing support of the valve of the outlet valve.
- the support consists of a shoulder disposed at the outlet of the first evacuation channel.
- the rod is then equipped with a valve bearing on said support support and the pump is thus equipped with the outlet valve.
- the outlet valve is thus disposed at the outlet of the dispensing chamber and the dispensing system is airtight from the container to the outlet of the dispensing chamber.
- a second outlet check valve is disposed in the discharge orifice, the push button then also comprising a rigid support disposed in the discharge orifice and the outlet valve consisting of the mounted valve. resting on said rigid support.
- the push button is a one-piece assembly that incorporates a rigid support support of the valve of the second outlet valve. Said bearing surface is constituted by the free end of a rod housed in the center of the discharge orifice, said rod being integral with the push button.
- the push button is then equipped with a valve housed in the discharge orifice, the flexible wall of the valve is supported on the bearing support formed by said free end.
- the pump is then equipped with a second outlet valve.
- the pump is equipped with two outlet valves, the first of which is disposed at the outlet of the distribution chamber and the second is disposed in the outlet orifice of the dispensing system; the second valve ensures the closure of said discharge port.
- This version has the advantage of great safety, the two output valves having a double air barrier.
- the second outlet valve housed in the orifice being in contact with the outside, can degrade for a reason of shock, fall or because of any aggression. In this case, the distribution system is always airtight until the exit of the distribution chamber.
- the push button comprises the rigid support disposed in the discharge orifice, the outlet valve being constituted by the valve mounted to bear on said rigid support.
- the pump is therefore equipped with a single outlet valve which simultaneously ensures the closing of the discharge orifice. It has the advantage that the dispensing system is sealed from the container to the dispensing orifice.
- the invention also relates to an assembly comprising a distribution system with at least one of the preceding characteristics. It is characterized in that the dispensing system is fixed on a container and in that the assembly is airtight outside from the container to the outlet valve of the pump further downstream. The assembly is thus sealed from the container to the outlet of the first discharge channel in the first embodiment. The assembly is thus sealed from the container to the discharge port in the second and third embodiments.
- FIG. 1 represents a section of a distribution system of the invention according to a first embodiment
- FIG. 2 is a section of a distribution system of the invention according to a second embodiment
- FIG. 3 is a section of a dispensing system of the invention according to a third embodiment.
- the top of the distribution system corresponds to the push button and the bottom to the band in contact with the container.
- the product flows from the container upstream of the dispensing system to the outlet port downstream of said dispensing system.
- the valve disposed in the dispensing orifice is therefore located downstream of the valve disposed at the outlet of the first evacuation channel.
- the dispensing system illustrated in FIG. 1 comprises a hoop 2, a push button 3, a return spring 4 constituting a return system, a rod 5 and two valves.
- the valves each comprise a valve 6 and 7 having a flexible wall 60 and 70 peripheral located vis-à-vis the rigid support 24 integral part of the hoop 2 for the valve 6 and the rigid support 52 integral part of the rod for the flap 7.
- the rigid support is pierced by at least one orifice 6 or 7 located opposite the flexible wall of the valve.
- the valve is in the closed position when the flexible peripheral wall 60 or 70 of the valve is respectively in contact with the rigid support 24 or 52 over its entire perimeter and in the open position when the flexible peripheral wall 60 or 70 of the valve is spaced from the rigid support on at least a part of this perimeter, the valve 6 or 7 and the rigid support 24 or 52 constituting a sealed assembly when the flexible flexible wall of the valve 6 or 7 is in contact with the whole of its perimeter with the rigid support 24 or 52.
- the valve 6 or 7 is respectively connected to the rigid support 24 or 52 by a fixed non-deformable connection.
- the valve moves from the closed position to the open position by deformation of the peripheral zone of the valve 6 or 7.
- the flexible walls 60, 70 of the non-return valves 6 and 7 are cone-shaped.
- the flexible walls 60, 70 will deform during assembly by the support and stress of the inner face of the large base of the cone on the rigid support 24 or 52.
- valves 6 and 7 are identical as in FIG.
- the return system may for example be a helically shaped compression spring, other solutions being possible.
- the hoop 2 is monobloc, for example consisting of a rigid plastic block obtained in a molding operation. It has a face 22 to ensure a tight connection with a container (not shown) filled with a product to be dispensed and sensitive to air. It includes an opening 20 to allow the transfer of the product into the chamber of distribution when the valve is open and a cylinder 21 which constitutes a first element of the distribution chamber.
- the rod 5 is also monobloc, it comprises the piston (50) disposed at a first end of said rod, said piston being in sealing contact with the inner wall of the cylinder 21, a guide ring 53 and is pierced along its entire length a duct constituting a first evacuation channel 51 which passes through it from bottom to top, preferably at its center from the first end to a second end called the outlet end 511.
- the first discharge channel 51 is closed in the upper part of the rod 5 by the valve 7 fixedly bearing on the rigid support 52 disposed at the outlet end 511 of the rod (5).
- the internal volume of the cylinder 21 delimited at the top by the internal face of the piston 50 and at the bottom by the valve 6 constitutes a distribution chamber 8.
- the distribution chamber 8 is extended by the first evacuation channel 51 inside the the rod 5 and the second exhaust channel 31 inside the push button 3.
- the rod 5 is secured to the push button 3 by interlocking.
- the valve 7 is fixed on the push button 3 before interlocking the push button 3 on the rod 5.
- the rod 5 and the push button 3 constitute a rigid assembly, the flexible wall of the valve 7 then bearing on the rigid support 52 and closing the discharge channel (51) when the valve is in the open position.
- the rod 5 is movable in translation in the cylinder 21 between two positions, a high position where a distribution chamber 8 is of maximum volume and a low position where the distribution chamber 8 is of minimum volume.
- the guide ring 53 cooperates with the inner face of the cylinder 21 to ensure that the rod 21 moves in a direction perfectly coaxial with the longitudinal axis of said cylinder.
- the piston 50 has a recess 500 of shape complementary to the valve 6 to allow an engagement of the piston 50 on the valve 6 and thus reduce the minimum volume of the distribution chamber 8.
- the rod 5 is attached to the push button 3 in its upper part and the valve 7 is disposed at the interface of the channels 51 and 31.
- the spring 4 keeps the push button 3 in the high rest position, it is supported on one face 30 of the push button 3 on one side and on one face 23 of the hoop 2 of the other.
- the push button 3 is pierced with a second complementary discharge channel 31 intended to extend the first channel 51 to the orifice 32.
- the dispensing system comprises an outlet valve consisting of a valve 9 having a flexible wall 90 disposed opposite the free end of a rod constituting the support of rigid support 33 of said flexible wall 90, said rod being an integral part of the push button 3.
- the flexible wall is perforated with a concentric orifice 32 with the support support 33.
- the orifice 32 has a substantially homothetic contour to that of the support support 33 in a plane P perpendicular to the axis xx 'of the rod.
- the orifice 32 has a surface smaller than the projected surface of the support support 33 in the plane P.
- the valve is in the closed position when the flexible wall 90 is in contact with the rigid support support 33 over the entire perimeter of the orifice 32, and in the open position when the flexible wall 90 is distant from the support support 33 on at least a portion of the perimeter of the orifice 32.
- valve 9 and the free end of the rod constituting the support support 33 form a sealed assembly when the flexible wall 90 is in contact with the support support 33 over the entire perimeter of the orifice 32.
- the valve 9 is connected to the push button 3 by a non-deformable fixed link.
- the valve moves from the closed position to the open position by deformation of the flexible wall 90.
- the flexible wall 90 is supported on the support support 33 at any point on its surface in contact with said support support.
- Said support is obtained by elastic deformation of said flexible wall 90, said deformation resulting from mounting of the valve 9 in the push button 3.
- the flexible wall 90 Before assembly, the flexible wall 90 may be inverted cone-shaped open. During assembly, the flexible wall 90 is deformed and takes a substantially flat shape as shown in Figure 3. In a preferred embodiment the push button 3 and the rod are monobloc.
- the dispensing system comprises three valves: an inlet valve and two outlet valves.
- the inlet valve is identical to that of the embodiments shown in FIG. 1 and FIG.
- the first outlet valve is identical to the outlet valve of Figure 1 and the second outlet valve is identical to the outlet valve of Figure 3.
- the volume of the dose may vary in very large proportions.
- the manufacturer imposes a piston stroke of 5 mm.
- the inside diameter of the cylinder be equal to 6.5 mm and that the diameter of the valve before deformation is less than 6 mm.
- the invention allows miniaturization of the pump dispensing system for a minimum dosage, it is therefore even simpler to achieve the application for much larger doses by increasing the diameter of the cylinder and the piston and that of the valve.
- valves 6, 7 and 9 will preferably be made of a flexible polymer having a good shape memory of the TPP, TEV or SEBS type or possibly LDPE.
- the rod 5 will be made of a polyethylene, preferably a PEL or a LDPE.
- the push button 3 and the hoop 2 do not have specific mechanical properties and can be realized in a more rigid polymer of HDPE or polycarbonate type.
- Polypropylene may also be used although not having the barrier and appearance properties of HDPE.
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1558948A FR3041410A1 (fr) | 2015-09-22 | 2015-09-22 | Systeme de distribution sans air avec pompe |
| FR1560103A FR3041413B1 (fr) | 2015-09-22 | 2015-10-22 | Systeme de distribution sans air avec pompe |
| PCT/FR2016/052407 WO2017051126A1 (fr) | 2015-09-22 | 2016-09-22 | Systeme de distribution sans air avec pompe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3352913A1 true EP3352913A1 (fr) | 2018-08-01 |
| EP3352913B1 EP3352913B1 (fr) | 2020-06-03 |
Family
ID=55486768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16785209.4A Active EP3352913B1 (fr) | 2015-09-22 | 2016-09-22 | Systeme de distribution sans air avec pompe |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3352913B1 (fr) |
| FR (2) | FR3041410A1 (fr) |
| WO (1) | WO2017051126A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3113253B1 (fr) | 2020-08-06 | 2023-05-05 | Cep | Assemblage d’une membrane souple de pompage et d’un embout rigide d’une pompe d’un systeme de distribution sans air d’un produit liquide ou pateux |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2723618B1 (fr) * | 1994-08-11 | 1996-10-31 | Sofab | Pompe a membrane |
| FR2742812B1 (fr) * | 1995-12-22 | 1998-02-20 | Valois | Pompe a precompression formee dans le poussoir |
| FR2917651B1 (fr) * | 2007-06-20 | 2010-09-17 | Rexam Dispensing Sys | Pompe pour la distribution d'un produit liquide a amorcage ameliore |
| DE102008030118B4 (de) * | 2007-07-02 | 2016-08-11 | Rpc Bramlage Gmbh | Spender |
-
2015
- 2015-09-22 FR FR1558948A patent/FR3041410A1/fr active Pending
- 2015-10-22 FR FR1560103A patent/FR3041413B1/fr active Active
-
2016
- 2016-09-22 EP EP16785209.4A patent/EP3352913B1/fr active Active
- 2016-09-22 WO PCT/FR2016/052407 patent/WO2017051126A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017051126A1 (fr) | 2017-03-30 |
| FR3041410A1 (fr) | 2017-03-24 |
| EP3352913B1 (fr) | 2020-06-03 |
| FR3041413A1 (fr) | 2017-03-24 |
| FR3041413B1 (fr) | 2018-04-20 |
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