EP4440952B1 - Kopf zur ausgabe eines flüssigprodukts und zugehörige flüssigproduktflasche - Google Patents

Kopf zur ausgabe eines flüssigprodukts und zugehörige flüssigproduktflasche

Info

Publication number
EP4440952B1
EP4440952B1 EP22822892.0A EP22822892A EP4440952B1 EP 4440952 B1 EP4440952 B1 EP 4440952B1 EP 22822892 A EP22822892 A EP 22822892A EP 4440952 B1 EP4440952 B1 EP 4440952B1
Authority
EP
European Patent Office
Prior art keywords
pusher
nozzle
insert
tabs
dispensing head
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.)
Active
Application number
EP22822892.0A
Other languages
English (en)
French (fr)
Other versions
EP4440952A1 (de
Inventor
Emir EZZINA
Richard Bloc
Thomas Pruvost
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Silgan Dispensing Systems Le Treport 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 Silgan Dispensing Systems Le Treport SAS filed Critical Silgan Dispensing Systems Le Treport SAS
Publication of EP4440952A1 publication Critical patent/EP4440952A1/de
Application granted granted Critical
Publication of EP4440952B1 publication Critical patent/EP4440952B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • 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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/1039—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being mechanically opened after a defined accumulation stroke
    • 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
    • B05B11/1052—Actuation means
    • B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation
    • 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
    • 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
    • B65D83/16—Actuating means
    • B65D83/164—Actuators comprising a manually operated valve and being attachable to the aerosol container, e.g. downstream a valve fitted to the container; Actuators associated to container valves with valve seats located outside the aerosol container

Definitions

  • the invention relates to a dispensing head for a fluid product.
  • the invention further relates to a bottle of fluid product equipped with such a dispensing head.
  • the fluid product can be any cosmetic product, including any pharmaceutical lotion or any other product.
  • Fluid product bottles typically include a reservoir for the fluid product topped at its upper part by a rigid neck defining an opening into which the fluid product distribution system is inserted.
  • the dispensing system includes a pump that can be operated by a user via a push button. When the user presses the push button, a dose of the product is dispensed through a dispensing orifice of a nozzle provided in the push button.
  • the dispensing orifice is permanently open.
  • nozzles have been proposed that include, as a product distribution orifice, a slot whose opening depends on the pressure exerted by the product exiting the pump.
  • the slot cannot be perfectly airtight because it would not be possible, during the first use, to prime the pump and expel the air contained in the pump and the top of the tank. Indeed, in the presence of air, the increase in air pressure resulting from the pump's activation is too small to open the The slot is designed so that air can never escape and the pump cannot be primed. Because of this intentionally imperfect seal, this configuration delays drying but does not eliminate it entirely.
  • FR2277002A1 This describes an automatic shut-off device used in conjunction with a pressurized fluid reservoir.
  • the device includes an actuator head, which comprises a portion of elastic wall that defines an outlet orifice with a face of the actuator head. In the rest position, the elastic wall portion rests against the face of the actuator head, and the outlet orifice is closed. By pressing on the actuator head, the face of the actuator head is displaced, the contact with the elastic wall is broken, and the outlet orifice is opened.
  • FR3078061A1 Describes a fluid distribution system comprising a push button to trigger the distribution of fluid through a nozzle including an outlet orifice.
  • the distribution system includes a return spring in the form of helical blades.
  • EP0800870A2 describes a pre-compression pump in which a push button interacts with a pump head via elastic tabs.
  • US20100147898A1 describes a distribution system in which a valve is formed by injection onto a wall of an outlet orifice.
  • the dispensing head is configured so that, when the pusher moves between the high and low positions relative to the insert, the nozzle moves from a closed position in which said nozzle is sealed to an open position allowing the dispensing of said product by deformation of said nozzle under the effect of a release of a constraint exerted by the pusher.
  • the opening of the nozzle of the invention does not depend on the pressure exerted by the product to be dispensed, but rather on the release of a constraint applied by the plunger as it moves from its upper to its lower position.
  • the nozzle can therefore be completely sealed, even without affecting priming.
  • the nozzle can remain completely sealed, particularly between uses of the device, since the elastic material from which it is made allows it to return to its initial, resting configuration after the product has been dispensed.
  • the inside of the nozzle, as well as the product contained in the bottle, are thus protected from contamination.
  • the nozzle according to the invention is simple to manufacture since its opening is "activated" by simply releasing a constraint applied by the plunger.
  • the insert is configured to exert a force in the opposite direction to the force exerted by the plunger to keep the nozzle closed at rest.
  • the plunger includes a stop, and the insert has at least two deformable tabs that exert force on the plunger, such that the insert exerts a force on the nozzle in the opposite direction to the force exerted by the stop on the nozzle.
  • the insert pushes the plunger back into the raised position thanks to the force exerted by its deformable tabs.
  • the plunger exerts a force on the nozzle via its stop, and the insert, for its part, exerts a force on the nozzle in the opposite direction. Under the effect of these two opposing forces, the nozzle is forced into its closed position.
  • This design ensures reliable nozzle closure, preventing contamination and drying of the product inside the nozzle, as well as the product in the bottle, after dispensing.
  • each leg extends from a body of the insert and has a distal end of the body, said distal ends being surmounted and connected to each other by a connecting element. Since the legs are designed to deform, the connecting element, by joining their distal ends, stiffens the pair of legs by maintaining a constant distance between the two distal ends and thus ensuring controlled deformation of each leg. This results in a more controlled movement of the pusher relative to the insert when it moves from the upper position PH to the lower position PB . reduction of friction between parts and ultimately a reduction of the actuation effort by the user.
  • said tabs are capable of deforming when pressure is applied to the plunger, the stop ceasing to exert on the nozzle the stress opposite to the stress exerted by the insert when the plunger is actuated.
  • the nozzle is no longer forced in its closed position when the plunger is actuated.
  • the fluid product is primarily a lotion
  • the lotion may have a fragile formula that could degrade when pressurized.
  • the nozzle according to the invention protects the lotion, regardless of its formula, because its opening is mechanically controlled and does not generate pressure.
  • the invention further relates to a dispensing bottle for a fluid product comprising a reservoir in which a product is intended to be packaged and a neck equipped with a dispensing head as described above.
  • the dispensing head is designed to be fitted to a bottle, not shown, configured to contain the product to be dispensed.
  • the bottle can be oriented either "upside down” or “upside down.” Therefore, the terms “upper” or “lower” should not be considered restrictive.
  • the figures correspond to an upside-down configuration.
  • the fluid product can be any cosmetic, pharmaceutical, or other product that can be usefully preserved in the bottle.
  • the fluid can be in direct contact with a reservoir within the bottle.
  • the fluid can be contained within a flexible pouch located inside the reservoir, so that it is not in contact with the reservoir itself, but with the flexible pouch.
  • the distribution head 2 is preferably equipped with a distribution pump 3.
  • the distribution pump 3 includes, in the illustrated example, a metering chamber and a nozzle capable of moving within the metering chamber.
  • a dispensing head 2 is configured so that, during the movement of the pusher 5 between a high position PH and a low position PB , an elastic nozzle 10 moves from a closed position, in which said nozzle is sealed, to an open position allowing the dispensing of said product by deformation of said nozzle 10 under the effect of a release of the stress exerted by the pusher 5.
  • the opening of the nozzle 10 is therefore mechanically controlled.
  • the pusher 5 exerts a stress on the nozzle 10 when the device is at rest, and it is the release of the stress that allows the nozzle to move from the closed position to the open position. This promotes sealing in the closed position.
  • the following sections describe in more detail how the pressure exerted by the pusher 5 on the nozzle 10 is released.
  • the pusher 5 comprises an outer lateral surface 50 and a stop 54 projecting from the outer lateral surface 50.
  • the nozzle 10 for its part, projects radially with respect to the pusher 5. At rest, that is to say when no pressure is exerted on the pusher 5, the nozzle 10 rests at least partially on the stop 54, in particular on an upper surface 54a of the stop ( Fig. 1a And 2a In other words, at rest, the nozzle 10 rests on the upper surface 54a. This also means that the stop 54 exerts a force on the nozzle 10.
  • the distribution head 2 advantageously includes an insert 6.
  • the insert 6 is made of a more rigid material than the nozzle 10.
  • the insert 6 exerts, at rest, on the nozzle 10 a stress in the opposite direction to the stress exerted by the pusher 5. This is due on the one hand to the positioning of the insert 6 relative to the pusher 5 and the nozzle 10 and on the other hand to the configuration of the insert 6 itself.
  • the insert 6 is equipped with at least two elastically deformable tabs 60. At rest, these at least two tabs 60 exert a force on the nozzle 10 in the opposite direction to the force exerted by the stop 54 of the plunger. These two opposing forces allow the nozzle 10 to be sealed. Indeed, as is better illustrated in figures 3a and 3b
  • the nozzle 10 comprises a flexible web 15 having a slot 17 extending in a direction substantially transverse to the direction of movement of the plunger 5. In this case, the slot 17 extends substantially horizontally.
  • the insert 6 comprises a body 6a and at least two elastically deformable legs 60, each leg extending from a body 6a of the insert and having a distal end 60a of the body 6a, said distal ends being surmounted and connected to each other by a connecting element 70.
  • the insert 6 is equipped with four elastically deformable tabs 60.
  • it has two front tabs 602 and two rear tabs 601, the front tabs 602 being closer to the nozzle 10 than the rear tabs 601.
  • These four tabs exert a force on the nozzle 10 in the opposite direction to the force exerted by the stop 54 of the pusher. It would be entirely at It is conceivable that the insert may be equipped with only two of the four tabs, for example, the two front tabs 602 or the two rear tabs 601.
  • the rear tabs 601 and the front tabs 602 extend from the body 6a of the insert to a distal end 601a and 602a respectively, said distal ends being surmounted and connected to each other by the connecting element 70.
  • the connecting element 70 by linking their distal ends, makes the entire set of tabs rigid by maintaining a constant distance between the distal ends and thus ensuring controlled deformation of each front tab 602 and rear tab 601. This results in a more controlled movement of the pusher 5 relative to the insert 6 when it moves from the upper position PH to the lower position PB , a reduction in friction between the parts, and ultimately a reduction in the actuation force. the user.
  • the insert 6 comprises only two tabs connected by the connecting element. According to another embodiment not shown, the insert 6 comprises four deformable tabs 60, only two of which are connected by the connecting element. According to yet another embodiment not shown, the insert 6 comprises four deformable tabs connected in pairs by a first and a second connecting element.
  • the tabs 60 are capable of deforming when pressure is applied to the pusher 5, the stop 54 then ceasing to exert on the nozzle 10 the opposite force to that exerted by the insert 6 when the pusher 5 is actuation.
  • the pusher 5 moves towards the lower position PB .
  • the tabs 60 deform elastically so that the upper wall 56 of the pusher 5 moves closer to the insert 6.
  • the nozzle 10 thus detaches from the stop 54, in particular from its upper surface 54a, and the slot 17 opens, now that the stresses have disappeared. Its lips are then no longer pressed against each other.
  • the connecting element 70 bears against the pusher 5, specifically against the inner face of the upper wall 56 of said pusher 5, with the tabs exerting a force on said pusher. Indeed, the tabs 60 transmit the force to the connecting element 70, which in turn transmits the force to the pusher 5.
  • the contact between the insert 6 and the pusher 5 is achieved by the connecting element 70, which extends at least over the distance between two tabs.
  • the contact between the insert and the pusher is therefore more stable than if it consisted solely of a plurality of point contacts, in this case between the distal ends 60a of the tabs 60 and the pusher 5 in the absence of of connecting element.
  • the connecting element 70 has a flat surface at its upper end.
  • the contact between the connecting element 70 and the inner face of the upper wall 56 is therefore a plane-on-plane contact, which is more stable and generates less friction than an edge-on-plane contact.
  • the connecting element 70 since the stress is transmitted from the lugs 60 to the connecting element 70, which in turn transmits said stress to the pusher 5, specifically to the inner face of the upper wall 56, the connecting element 70, by virtue of its extent, transmits a uniform stress to the pusher 5. This ensures a balanced distribution of the stresses exerted on the pusher 5.
  • the connecting element 70 is made of material with at least two deformable tabs 60.
  • the connecting element 70 is made of the same material as the two front tabs 602 and the two rear tabs 601. The production of the part is thus facilitated and the cost of manufacturing by injection is thus minimized.
  • the connecting element (70) forms a portion of a ring extending around an axis (X) over an angular range preferably greater than 30°.
  • the ring portion extends over a range of 270° and connects the two front legs 602 and the two rear legs 601.
  • the connecting element 70 connects only the two rear legs 601, forming a ring portion over an angular range greater than 30°.
  • the ring extends over an angular range greater than 180°.
  • the connecting element 70 forms a complete ring, i.e., 360°.
  • the connecting element (70) is a disc, which allows for stable contact with minimal friction with the part with which the disc cooperates, in particular with the inner face of the upper wall 56 of the pusher 5.
  • the assembly consisting of at least two tabs 60 and the connecting element 70 be symmetrical about the plane of symmetry (P), as shown in the diagram.
  • P plane of symmetry
  • the insert as a whole can also be symmetrical about plane P.
  • the two rear legs 601 are symmetrical with respect to the plane of symmetry (P), as are the two front legs 602, and have curvatures C601 and C602 respectively.
  • the C602 curvatures of the front legs 602 are oriented substantially towards the front of the insert 6, i.e., in the direction of the nozzle 10. These two C602 curvatures are symmetrical to each other.
  • the two rear legs 601 located at the rear of the insert 6, i.e., opposite the nozzle 10, are also arranged symmetrically, and their C601 curvatures are oriented substantially towards each other and are substantially orthogonal to the plane of symmetry (P).
  • the said at least two legs 60 are connected to a peripheral shoulder 6b of said insert 6. They are included in a cylinder 71 and each has a curvature tangent to said cylinder 71 ( Fig. 4b
  • the connecting element 70 is also included in said cylinder 71.
  • This geometry thus facilitates the definition and development of the injection tool.
  • the shoulder 6b of the insert 6 has a substantially horizontal surface orthogonal to the X-axis and is located at the periphery of the insert. It is bordered by an outer skirt 6c of the insert.
  • the tabs 60 are connected to the shoulder 6b by connecting points 60b.
  • the front tabs 602 and the rear tabs 601 are connected to the peripheral shoulder 6b at the connection points 602b and 601b, respectively.
  • the tabs 60, both the front tabs 602 and the rear tabs 601 are themselves located on the periphery of the insert. Since the tabs 60 are not located radially between the insert body 6a and any peripheral insert structure, the tabs, and therefore the entire insert, are easily removed from the mold using a slide mold, eliminating the need for a more expensive and complicated mold with pin crossings.
  • connection point 601b to the body 6b of the insert 6 and the distal end 601a of each rear leg 601 are vertically aligned with each other. In other words, the line joining these two points is parallel to the x-axis ( Figs.4b And 4c ).
  • connection point 602b and the distal end 602a of each front leg 602 are not vertically aligned with each other.
  • the distal end 602b is offset by 30° relative to the connection point.
  • connection 602a the angle being measured with respect to the X axis. An angle between 5° and 50°, more preferably between 20° and 40°, is also possible.
  • the front tabs 602 are closer to the nozzle 10 than the rear tabs 601 and consequently contribute more to closing the nozzle 10. It is therefore important that the front tabs 602 operate reliably and repeatably, without deteriorating under repeated actuation and with minimal aging. To this end, it is advantageous that the front tabs 602, when the pusher 5 moves from the upper position PH to the lower position PB , operate within a range of elastic deformation well below their elastic limit, beyond which they would deform irreversibly. Thus, it is advantageous to angularly offset the distal portions 602a and the connection points 602b of each front tab 602, in order to increase its rest length and therefore the elastic limit of said front tab 602.
  • the insert 6 is provided with at least one rear leg 601 and at least one front leg 602, closer to the nozzle 10 than said at least one rear leg 601, said at least one front leg 602 having a greater rest length than said at least one rear leg 601.
  • the front tabs 602 have a higher stiffness constant than the rear tabs 601. This characteristic can be achieved, for example, by having a greater thickness of the front tabs 602 than of the rear tabs 601. Thus, the stress exerted by the front tabs 602 on the pusher 5 is greater than that exerted by the rear tabs 601. The resulting torque causes the insert to tilt relative to the pusher in the direction indicated by an arrow on the Figure 1a , promoting contact of the nozzle on the pusher 5, i.e. on the stop 54.
  • the insert 6 is equipped with at least one rear leg 601 and at least one front leg 602, closer to the nozzle 10 than said at least one rear leg 601, said at least one front leg 602 having a greater stiffness constant than said at least one rear leg 601.
  • the insert 6 includes an opening 64 receiving the nozzle 10, here radially.
  • the opening 64 more precisely receives a nozzle connection portion 19 (visible on the Fig. 3b ).
  • It includes fastening means 19a cooperating with fastening means 64a of the insert, which ensures proper positioning of the nozzle 10.
  • the insert 6 also includes a chimney 63 of the shape substantially cylindrical, the internal dimensions of which are adapted to those of an upper portion of the distribution pump 3 in order to accommodate said upper portion of the pump.
  • the chimney 63 is oriented along the actuation axis of the distribution head.
  • the pusher 5 is provided with an opening 51 for the passage of the nozzle 10.
  • a diameter of the opening 51 is such that in the upper position PH of the pusher, a gap J exists between the nozzle 10 and an upper edge 51a of the opening 51 ( figures 1a And 2a ) is greater than the axial displacement length of the plunger 5 between the upper position PH and the lower position PB .
  • the upper surface 54a of the stop 54 extends radially outward from the body 50 of the pusher 5 and axially toward the nozzle 10. Near its peripheral radial end, the upper surface 54a of the stop 54 is oriented toward the nozzle, i.e., upwards, so that the stress exerted by the upper surface 54a of the stop 54 is applied near the slot 17 of the nozzle 10. Indeed, in order for the contact between the nozzle 10 and the stop 54 to effectively close the slot 17 of the nozzle, it is preferable for the stress to be precisely localized at a point 55 on the side of the nozzle 10 where the slot 17 is located.
  • the angle ⁇ thus formed by the upper surface 54a of the stop 54 with an external surface of the nozzle opposite the stop is between 2° and 6°, preferably 4°, in the upper position P H of the pusher.
  • the insert 6 and the pusher 5 include means 57, 58 for guiding the movement of the pusher 5 relative to the insert 6.
  • the pusher 5 includes ribs 57 for angular positioning of the insert 6. Said ribs extend from the inner lateral flanks of the pusher 5 and cooperate with grooves 58, axially oriented, provided at an external face of the peripheral wall of said insert 6. Said ribs 57 and said grooves 58 allow guidance of the insert 6 relative to the pusher 5 during their relative axial movement.
  • the insert 6 and the pusher 5 include means 52, 62, 72 for guiding the deformation of the tabs 60.
  • the insert body 6a, the connecting element 70, and the pusher 5 include means 52, 62, 72 for guiding the deformation of the tabs 60.
  • the pusher 5 includes a secondary rib 52 extending along an inner face of the pusher 5 and cooperating with an axially oriented secondary groove 72 provided on an outer face of the connecting element 70 of said insert 6.
  • the insert body 6a includes an additional groove 62 in the axial extension of the secondary groove 72 of the connecting element.
  • the secondary rib 52 of the pusher 5 cooperates with the additional groove 62, which allows guidance of the pusher 5 relative to the insert 6, and the cooperation between said secondary rib 52 and said secondary groove 72 of the connecting element 7 allows guidance of the connecting element 70 relative to the pusher 5, i.e., guidance of the deformation of the tabs 60.
  • said connecting element (70) includes guiding means (72). Said secondary rib 52 and said secondary groove 72 are located at the rear of the distribution head 2, opposite the nozzle 10.
  • the means for guiding the deformation of the legs 60 do not include the additional groove 62 carried by the body 6a of the insert 6 and only the secondary groove 72 and the secondary rib 72.
  • the plunger 5 includes an angular stop 53 preventing the insert 6 from tilting. Thanks to this angular stop 53, tilting of the insert in the upper position PH of the plunger, which would move the nozzle 10 away from the plunger 5, specifically from the upper surface 54a of the stop 54, is prevented. Such tilting of the insert 4 relative to the plunger 5 would result in the plunger 5 not exerting sufficient force on the nozzle 10 to ensure a tight seal of the nozzle slot 17, or even in the nozzle 10 losing contact with the surface 54a of the stop 54 when the plunger 5 is in the upper position PH .
  • the inner face of the upper wall 56 of the plunger is provided with a pin 53, as shown in the diagrams.
  • the insert 6 is provided on its upper face 65 with a slide 63, in which the pin 53 is guided.
  • the interaction of the slide 63 and the pin 53 guides the pusher 5 during its movement relative to the insert 6 when the pusher moves.
  • the slide 63 includes a wall 64 along which the pin 53 slides during the movement of the pusher 5.
  • the sliding contact between an edge 53a of the pin 53 of the pusher 5 and the wall 64 of the slide 63 of the insert 6 guides the movement of the pusher while ensuring, in the raised position of the pusher PH , that the insert 6 is angularly oriented relative to the pusher 5 so that the nozzle 10 is pressed against the upper surface 54a of the stop 54 of the pusher 5.
  • the pin 53 thus acts as an angular stop for the insert.
  • the deformation of the lugs 60 and the deactivation of the stress(s) exerted by said lugs also stem from the fact that their stiffness constant is appropriately selected relative to a spring 35 of the pump 3.
  • the pump spring 35 has a stiffness constant chosen such that, when the plunger 5 is actuated, the force exerted by the lugs 60 is less than the force exerted by the pump spring 35.
  • the insert 6, via the lugs 60 exerts On the nozzle 10, a downward force is exerted, while the stop 54 exerts an upward force, like a pinch.
  • the force exerted by the pump spring 35 is greater than that exerted by the tabs 60, and the insert 6 moves closer to the inner face of the upper wall 56 of the plunger 5.
  • the pump spring 35 has a stiffness suitable for maintaining its ability to compress and allow the pump 3 to be actuated in order to dispense the product, once the slot 17 is opened.
  • the insert 6 returns to its original configuration, which allows the nozzle 10 to be mechanically closed.
  • the opening and closing of the nozzle 10, in particular of the slot 17, do not depend on the pressure exerted by the fluid but on the mechanical stresses exerted or not on the nozzle 10.
  • the sealing is favored by the shape of the nozzle 10, designed to extend on the surface in front of the stop 54, under the slot 17.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (19)

  1. Verteilungskopf (2) für ein Flüssigprodukt, umfassend:
    - einen von Hand betätigbaren Stößel (5), wobei der Stößel (5) konfiguriert ist, um sich zwischen einer oberen Position (PH) und einer unteren Position (PB) in Bezug zu einem Einsatz (6) zu verschieben,
    - eine Verteilungsdüse (10) für das Produkt, die aus einem Werkstoff aus elastischem Material gefertigt ist,
    wobei der Verteilungskopf (2) konfiguriert ist, damit die Düse (10) beim Verschieben des Stößels (5) von der oberen Position (PH) in die untere Position (PB) von einer geschlossenen Position, in der die Düse (10) dicht ist, in eine offene Position übergeht, welche die Verteilung des Produkts durch Verformen der Düse (10) unter der Wirkung einer Lockerung eines durch den Stößel (5) ausgeübten Zwangs zulässt, wobei der Einsatz (6) konfiguriert ist, um einen Zwang in entgegengesetzter Richtung zu dem durch den Stößel (5) ausgeübten Zwang auszuüben, um die Düse in Ruhestellung geschlossen zu halten, wobei der Stößel (5) einen Anschlag (54) umfasst, und
    dadurch gekennzeichnet, dass der Einsatz (6) mit mindestens zwei verformbaren Laschen (60) versehen ist, wobei die mindestens zwei Laschen (60) eine Kraft auf den Stößel (5) hervorrufen, sodass der Einsatz (6) einen Zwang in entgegengesetzter Richtung zu einem vom Anschlag (54) auf die Düse (10) ausgeübten Zwang auf die Düse (10) ausübt.
    wobei sich jede Lasche (60) vom Körper (6a) des Einsatzes (6) erstreckt, und ein distales Ende (60a) des Körpers (6a) aufweist, wobei die distalen Enden von einem Verbindungselement (70) überragt und miteinander verbunden werden.
  2. Verteilungskopf (2) nach dem vorstehenden Anspruch, wobei die Laschen (60) imstande sind, sich zu verformen, wenn ein Druck auf den Stößel (5) ausgeübt wird, wobei der Anschlag (54) beim Betätigen des Stößels (5) damit aufhört, den Zwang auf die Düse (10) in entgegengesetzter Richtung zu dem vom Einsatz (6) ausgeübten Zwang auszuüben.
  3. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei die mindestens zwei Laschen (60) mindestens eine hintere Lasche (601) und mindestens eine vordere Lasche (602) näher an der Düse (10) als die mindestens eine hintere Lasche (601) umfassen, wobei die mindestens eine vordere Lasche (602) eine Länge in der Ruhestellung größer als die mindestens eine hintere Lasche (601) aufweist.
  4. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei die mindestens zwei Laschen (60) mindestens eine hintere Lasche (601) und mindestens eine vordere Lasche (602) näher an der Düse (10) als die mindestens eine hintere Lasche (601) umfassen, wobei die mindestens eine vordere Lasche (602) eine Federkonstante in der Ruhestellung größer als die mindestens eine hintere Lasche (601) aufweist.
  5. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei das Verbindungselement (70) aus einem Stück mit den mindestens zwei Laschen (60) ist.
  6. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei das Verbindungselement (70) am Stößel (5) anliegt.
  7. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei das Verbindungselement (70) einen Ring oder einen Ringabschnitt bildet, der sich um eine Achse (X) über einen Winkelbereich von mehr als 30° erstreckt.
  8. Verteilungskopf (2) nach einem der Ansprüche 1 bis 5, wobei das Verbindungselement (70) eine Scheibe ist.
  9. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei die Einheit bestehend aus den mindestens zwei Laschen (60) und dem Verbindungselement (70) eine Symmetrieebene (P) aufweist.
  10. Verteilungskopf (2) nach dem vorstehenden Anspruch, wobei die mindestens zwei Laschen (60) in einem Zylinder (71) beinhaltet sind.
  11. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei die mindestens zwei Laschen (60) an einen Umfangsabsatz (6b) des Einsatzes (6) angeschlossen sind.
  12. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei der Einsatz (6) und der Stößel (5) Führungsmittel (57, 58) für die Verschiebung des Stößels (5) in Bezug auf den Einsatz (6) umfassen.
  13. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei der Einsatz (6) und der Stößel (5) Führungsmittel (52, 62, 72) für die Verformung der Laschen (60) umfassen.
  14. Verteilungskopf (2) nach dem vorstehenden Anspruch, wobei das Verbindungselement (70) Führungsmittel (72) für die Verformung des Laschen (60) umfasst.
  15. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei sich die obere Oberfläche (54a) des Anschlags (54) radial aus dem Körper (50) des Stößels (5) hervorstehend und axial in Richtung der Düse (10) erstreckt.
  16. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei der Stößel (5) einen Winkelanschlag (53) umfasst, der ein Umschwenken des Einsatzes (6), das die Düse (10) vom Stößel (5) entfernt, verhindert.
  17. Verteilungskopf (2) nach einem der vorstehenden Ansprüche, wobei die Düse (10) einen Schlitz (17) umfasst, der Schlitz (17) konfiguriert ist, um sich zu verformen, um den Übergang der Düse (10) von der geschlossenen Position in die offene Position zu erlauben, wobei der Verteilungskopf (2) konfiguriert ist, damit die Düse (10) Kräften in entgegengesetzter Richtung ausgesetzt ist, die den Stößel (5) mit einbeziehen, um den Schlitz (17) durch Quetschen geschlossen zu halten.
  18. Verteilungskopf (2) nach dem vorstehenden Anspruch, wobei sich der Schlitz (17) entlang einer im Wesentlichen zur Verschieberichtung des Stößels (5) quer verlaufenden Richtung erstreckt, wobei der Schlitz (17) über eine Schlitzebene genannte Ebene verläuft, wobei die Richtung der vom Anschlag (54) ausgeübten Zwänge und die Laschen (60) orthogonal zur Schlitzebene (17) liegen.
  19. Verteilungsfläschchen für ein Flüssigprodukt, das einen Behälter, in dem ein Produkt dazu bestimmt ist, konditioniert zu werden, und einen Kragen umfasst, der mit einem Verteilungskopf (2) nach einem der Ansprüche 1 bis 18 ausgestattet ist.
EP22822892.0A 2021-11-29 2022-11-24 Kopf zur ausgabe eines flüssigprodukts und zugehörige flüssigproduktflasche Active EP4440952B1 (de)

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FR2112627A FR3129612B1 (fr) 2021-11-29 2021-11-29 Tete de distribution d’un produit fluide et flacon de produit fluide associe
PCT/EP2022/083203 WO2023094558A1 (fr) 2021-11-29 2022-11-24 Tete de distribution d'un produit fluide et flacon de produit fluide associe

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US3991916A (en) * 1974-07-01 1976-11-16 Bon F Del Automatic closure device for the discharge of a foam product from a pressurized container
US5785208A (en) * 1996-04-10 1998-07-28 Calmar Inc. Precompression pump sprayer having suck-back feature
DE102007049614B4 (de) * 2007-03-15 2015-03-05 Aptar Dortmund Gmbh Abgabevorrichtung
FR3078061B1 (fr) * 2018-02-20 2020-10-23 Aptar France Sas Distributeur de produit fluide.
IT201900021321A1 (it) * 2019-11-15 2021-05-15 Taplast Srl Pompa a soffietto bloccabile in posizione ritratta
FR3110868B1 (fr) * 2020-05-29 2022-08-12 Albea Le Treport Tete de distribution d’un produit fluide et flacon de produit fluide associe
WO2022038194A1 (en) * 2020-08-18 2022-02-24 Rieke Packaging Systems Limited Modular, adjustable force, all-polymer helical biasing member and pump dispenser incorporating same

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US20250025902A1 (en) 2025-01-23
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FR3129612A1 (fr) 2023-06-02
FR3129612B1 (fr) 2024-07-12

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