• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    “PRESSURE BUTTON FOR A PRODUCT DISTRIBUTION SYSTEM UNDER PRESSURE AND A PRODUCT DISTRIBUTION SYSTEM UNDER PRESSURE” The present invention deals with a push button for a product distribution system under pressure, as well as this distribution system. The push button for a product pressure distribution system, which the push button comprises a body (1) which has a reservoir (3) for mounting on a pressure inlet tube (4) and a housing (10) in communication with the reservoir, the housing being provided with an anvil (11) around which a spray nozzle (12) is mounted so as to form a product distribution path between the housing and a swirling assembly comprising a swirling chamber (22) provided with a distribution orifice (23) as well as at least one channel (24) for feeding the chamber, in which the swirling chamber is bounded by a lateral surface (25) a tapered geometry in relation to which the feed channel or channels (24) extend in a transverse plane, and the lateral surface converges from an upstream end (26) at which the downstream end tangentially ends feed channel or channels (24) for a downstream opening (27) for supplying the distribution port (23), which distribution port has an outlet dimension that is equal to the internal dimension of the downstream opening.
    公开号:BR112012010556B1
    申请号:R112012010556-6
    申请日:2010-11-02
    公开日:2020-11-17
    发明作者:Jean-Pierre Songbe
    申请人:Albéa Le Tréport；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention deals with a push button for a distribution system for a product under pressure, as well as for this distribution system. BACKGROUND OF THE INVENTION
    [002] In a particular application, the distribution system is intended to equip bottles used in perfumery, in cosmetics or for pharmaceutical treatments. In fact, this type of bottle contains a product that is returned by a distribution system that comprises a pressure removal device for that product, which the system is activated by a press button to allow the product to be sprayed. In particular, the withdrawal device comprises a pump or a manually operated valve by means of the push button.
    [003] These buttons for pressing are classically made in two parts: a drive body and a product spray nozzle that are associated with each other to form a swirling assembly comprising a swirling chamber with a distribution hole as well as the least one feed channel of said chamber.
    [004] In particular, the feed channels end tangentially in the swirl chamber which is cylindrical in revolution in order to rotate the product very quickly, and the distribution orifice has a reduced diameter in relation to that of the said chamber in order that the product in rotation, escape through the orifice with a speed sufficient to fractionate into droplets that form the aerosol.
    [005] However, as this fractionation is done in an uncontrolled way, the aerosol consists of droplets of very different sizes. For example, for a pump or valve that feeds a push button with a flow of alcohol under a pressure of 5 bars, and an exit orifice of 0.3 mm, the aerosol is usually made up of droplets with a diameter between 5 pm and 300 pm.
    [006] However, large droplets are heavier than small ones and follow a different distribution path, and can cause indelible stains in the case of perfumes. In addition, small droplets are lighter and can be inhaled, which may be the desired goal in the case of drugs, but which can have an undesirable effect in the case of toxic products. In addition, in the case of drugs that must be distributed according to a precise dosage, the place of application, for example, inside the respiratory system, depends on the size of the droplets, and the wide disparity in sizes distorts the treatment.
    [007] In addition, the size of the droplets coming from a swirling chamber depends in part on the force and speed with which the user operates the pump by supporting the button to press with his finger, as the induced pressure depends on it.
    [008] Furthermore, in particular because of the effects of the centrifugal force at the outlet of the vortex chamber, the aerosol tends to be hollow with a substantially conical shell that consists of most droplets while there are few inside the cone . In particular, this distribution of droplets can be harmful for dermal applications.
    [009] Furthermore, it is known, in particular through document FR-2 915470, a push button comprising a distribution chamber that is provided with channels that converge each to an exit orifice, which referred to convergent are arranged to allow impaction of the product jets distributed through said orifices. Thus, during the impaction of the jets distributed at high speed, an aerosol is formed without using a vortex chamber.
    [010] However, to perform this aerosol by satisfactorily controlling the calibration and spatial distribution of the droplets, it is necessary to form identical jets and whose convergence is perfect, which is very difficult to do industrially at the interface between the actuation body and the nozzle mounted on the said body. This results that the jets can cross without impacting or impacting only partially, which degrades the calibration and the spatial distribution of the droplets formed.
    [011] In addition, feeding the converging ducts or the swirling chamber according to the state of the art does not allow for a fractionation of the dose of product to be distributed, that is, to return only a part of the dose provided by the pump. In fact, the support stroke of the push button is carried out too quickly, in particular from 0.2 seconds to 120 pl, in order to be interrupted by the user. DESCRIPTION OF THE INVENTION
    [012] The present invention aims to solve the problems of the prior art by proposing in particular a press button that allows the distribution of an aerosol formed of droplets that has an improved calibration and spatial distribution, increasing the production time of said aerosol.
    [013] For this purpose, and according to a first aspect, the present invention proposes a push button for a product distribution system under pressure, which push button comprises a body that has a mounting reservoir on a product inlet tube under pressure and a housing in communication with said reservoir, the housing being provided with an anvil around which a spray nozzle is mounted in order to form a product distribution path between said housing and a swirling assembly comprising a swirling chamber provided with a distribution orifice as well as at least one feeding channel for said chamber, and said swirling chamber is delimited by a lateral surface that has a tapered geometry in relation to which the feeding channels extend in a transverse plane, and said lateral surface converges from an upstream end in the qu al, tangentially ends the downstream end of the feed channel (s) for a downstream feed opening of the dispensing orifice, which dispensing orifice has an outlet dimension that is equal to the internal dimension of said downstream opening.
    [014] According to a second aspect, the present invention proposes a distribution system for a product under pressure, which comprises a withdrawal device equipped with a product inlet tube under pressure over which the reservoir of that button presses is mounted to allow spraying of the product. BRIEF DESCRIPTION OF THE DRAWINGS
    [015] More objects and advantages of the present invention will appear in the following description, made in relation to the accompanying figures in which: - figure 1 is a partial longitudinal sectional view of a bottle equipped with a distribution system according to a mode of carrying out the present invention; figure 2 is a partial longitudinal section view of the push button of figure 1; - figures 3 are seen from the tip of the push button according to figure 2, respectively in perspective (figure 3a) and from the inside (figure 3b). DESCRIPTION OF THE ACCOMPLISHMENTS OF THE INVENTION
    [016] In relation to the figures, a push button is described below for a distribution system for a product in particular liquid under pressure, which the product can be of any nature, used in particular in perfumery, cosmetics or for pharmaceutical treatments.
    [017] The push button comprises a body 1 with an annular flap 2 surrounding a reservoir 3 for mounting the push button on an inlet tube 4 of the product under pressure. In addition, the press button comprises an upper zone 5 which allows the user to press the finger on said press button in order to be able to move it axially. In the illustrated embodiment, the push button is equipped with a cap 6 with an aspect surrounding the body 1 and on which the upper support area 5 is formed.
    [018] In relation to figure 1, the dispensing system comprises a withdrawal device 6 equipped with a pressure inlet tube 4 of the product which is sealed in the reservoir 3. In a known manner, the dispensing system comprises furthermore, mounting means 7 on a bottle 8 containing the product and means for removing product 9 inside said bottle which are arranged to supply the inlet tube 4 with product under pressure.
    [019] The withdrawal device 6 may comprise a manually operated pump or, in case the product is conditioned under pressure in bottle 8, a manually operated valve. Thus, when the push button is moved manually, the pump or valve is activated to supply the inlet tube 4 with product under pressure.
    [020] The body 1 also has an annular housing 10 that is in communication with the reservoir 3. In the embodiment shown, the housing 10 is perpendicular to the mounting reservoir 3 to allow a lateral spraying of the product in relation to the body 1 of the press button. In a variant not shown, the housing 10 can be collinear with reservoir 3, in particular for a push button that forms a nasal spray nozzle.
    [021] The housing 10 is provided with an anvil 11 around which a spray nozzle 12 is mounted so as to form a pressure distribution path for the product between said housing and a whirling assembly. To do this, the anvil 11 extends from the bottom of the housing 10, leaving a communication channel 13 between the reservoir 3 and said housing.
    [022] In the illustrated embodiment, the nozzle 12 has a cylindrical side wall 14 of revolution which is closed at the front by a proximal wall 15. The association of the nozzle 12 in the housing 10 is carried out by pressing the outer face of the wall lateral 14, and the rear edge of said external face is further provided with a radial protrusion 16 anchoring in the nozzle 12 in said housing.
    [023] In addition, an impression of the swirl assembly is formed in a cavity in the proximal wall 15 and the anvil 11 has a flat distal wall 17 on which the proximal wall 15 of the nozzle 12 is in support to delimit the swirl assembly between them. . In a variant not shown, an impression of the swirl assembly can be formed directly on a wall of the housing 10, in particular for a nasal spray nozzle. In another variant not shown, the distal wall 17 can have a convexity facing inward of the eddy.
    [024] Advantageously, the nozzle 12 and the body 1 are made by molding, in particular of a different thermoplastic material. In addition, the material that forms the nozzle 12 has a stiffness that is higher than the stiffness of the material that forms the body 1. Thus, the high stiffness of the nozzle 12 allows to avoid its deformation during its assembly in the housing 10 in order to guarantee the geometry of the whirlpool assembly. In addition, the lower rigidity of the body 1 allows for improved tightness between the mounting reservoir 3 and the inlet pipe 4.
    [025] In one embodiment, body 1 is made of polyolefin and nozzle 12 is made of olefinic cycle copolymer (COC), poly (oxymethylene) or poly (butylene terephthalate).
    [026] In the illustrated embodiment, the distribution path presents successively in upstream communication downstream: - an annular conduit upstream 30 in communication with channel 13, and said annular conduit is formed between the rear of the inner face the side wall 14 of the nozzle 12 and the part of the outer face of the side wall of the anvil 11 which is arranged in front; - four axial ducts 18 formed between four spacers 19 that extend on the inner face of the side wall 14 of the nozzle 12, which spacers have a free wall 20 which is fitted with pressure on the outer face of the side wall of the anvil 11; - an annular downstream conduit 21 formed between the proximal wall 15 of the nozzle 12 and the distal wall 17 of the anvil 11.
    [027] On the downstream side, the distribution path feeds product under pressure to the swirl assembly comprising a swirl chamber 22 provided with a distribution orifice 23 as well as at least one feed channel 24 from said chamber. More precisely, in the illustrated embodiment, the supply channels 24 communicate with the downstream annular conduit 21. In particular, this embodiment allows to limit the length of the supply channels 24 in order to reduce the pressure losses caused.
    [028] The vortex chamber 22 is bounded by a lateral surface 25 that presents a truncated geometry that extends along a distribution axis D, and the distribution channels 24 extend in a transversal plane in relation to said distribution axis. In the description, the positioning terms in the space are defined in relation to the distribution axis.
    [029] In the embodiment shown, the tapered geometry is of revolution around the distribution axis D, and an internal dimension of the said geometry then corresponds to a diameter. In an unrepresented variant, the tapered geometry can be of polygonal section, and an internal dimension of said geometry then corresponds to a diameter of the enclosure inscribed in said geometry.
    [030] The side surface 25 converges from an upstream end 26 at which the downstream end of the feed channels 24 tangentially ends to a downstream feed 27 opening of the delivery port 23. In addition, the delivery port 23 has an outlet dimension that is equal to the internal dimension of the downstream opening 27. Advantageously, the angle of convergence of the side surface 25 can be comprised between 30 ° and 50 °, in particular in the order of 45 °. In addition, in the illustrated embodiment, the upstream end 26 has a cylindrical geometry of revolution in which the downstream end of the feed channels 24 ends tangentially.
    [031] Thus, during the distribution of the product under pressure, the tangential feeding of the swirl chamber 22 allows to place the product in rotation at the upstream end 26 of said chamber, and the product is then applied and pushed in rotation along the surface side 25 of said chamber forming a product layer whose speed of rotation increases and converges to the downstream opening 27, and then said converging layer can escape through the distribution hole 23 without deforming so that it can impact to form the aerosol.
    [032] This realization, therefore, allows to combine the advantages of using a whirlpool chamber 22 with that of the product's impaction, without having its drawbacks, in particular in relation to the dispersion of droplet sizes and the risks of non-impaction of the product. The impaction of the swirling layer in particular allows the creation of an aerosol formed from a uniform spatial distribution of droplets suspended in the air, and the size of said droplets is small and uniform. In particular, the aerosol can then have the appearance of a plume of smoke with droplet sizes between 10 pm and 60 pm with an average of 35 pm for an alcoholic product, whatever the supporting force that the user exerts on the press button.
    [033] In the illustrated embodiment, the tourbillon set has two feed channels 24 of the tourbillon chamber 22, said channels are arranged symmetrically in relation to the distribution axis D.
    [034] In addition, to tangentially feed the vortex chamber 22 by rotating the product along its side surface 25, each channel 24 has a U-section that is bounded between an outer wall 28 and an inner wall 29. The outer wall 28 is tangent to the upstream end 26 and the inner wall 29 is offset from it by a distance of less than 30% of the internal dimension of the upstream end 26 in order to avoid an impaction of the product at said upstream end.
    [035] In the illustrated embodiment, the inner wall 29 is parallel to the outer wall 28. In an unrepresented variant, the inner wall 29 has an angle of convergence with the outer wall 28 in the upstream downstream direction, and the displacement between said walls it is then measured at the level of the end section of the channels 24 at the upstream end 26.
    [036] In a variant, more than two feed channels 24 can be provided, in particular three channels 24 arranged symmetrically with respect to the distribution axis D, or a single channel 24 can be provided to tangentially feed the vortex chamber 22.
    [037] In addition, the downstream end of the feed channel 24 or the set of downstream ends of each of the feed channels 24 forms a feed section of the swirl chamber 22. To increase the delivery time of a dose of product on the press stroke, it can be expected that this feed section is small in relation to the inner surface of the upstream end 26. In particular, the surface of the feed section may be less than 10% of the surface upstream end 26.
    [038] Preferably, the surface of the feed section can be comprised between 0.01 mm2 and 0.03 mm2. In one example, the internal dimension of the upstream end 26 is 0.6 mm, that is, an internal surface of 0.28 mm2, and each channel 24 has a width and depth of 0.1 mm, or that is, a 0.02 mm2 surface for the feed section. In a variant, channels 24 can be 70 pm wide and 130 pm deep.
    [039] In addition, due to the passage of the product in a reduced feeding section, the distribution time is increased. For example, for a dose of 120 pl the dispensing time can be between 0.5 and 2 seconds in order to give the user the possibility to interrupt the aerosol dispensing during activation.
    [040] In the illustrated embodiment, the downstream opening 27 of the swirl chamber is superimposed on a distribution orifice 23 which has a cylindrical geometry of revolution around the distribution axis D, and the internal dimension of said orifice is equal to the dimension downstream opening 27.
    [041] Advantageously, the axial dimension of the distribution hole 23 is small in relation to its internal dimension, so as not to disturb the convergence of the swirling layer. In particular, the axial dimension of the dispensing orifice 23 can be 50% of its internal dimension.
    [042] In a variant not shown, the downstream opening 27 of the swirl chamber 22 may form a distribution orifice 23.
    [043] The aerosol is particularly satisfactory when the internal dimension of the downstream opening 27 is small in relation to the internal dimension of the upstream end 26, so that the impaction of the layer is carried out as close as possible to the dispensing orifice 23 In particular, the internal dimension of the downstream opening 27 may be less than 50% of the internal dimension of the upstream end 26, more precisely being comprised between 20% and 40% of said internal dimension.
    [044] Preferably, the axial dimension of the swirl chamber 22 is relatively high, in particular of the order or greater than the internal dimension of the upstream end 26, in order to allow the establishment of the swirling layer along the lateral surface 25 of said swirling chamber and providing progressive convergence. In particular, the axial dimension of the swirl chamber 22 is at least equal to 80% of the internal dimension of the upstream end 26, more precisely being comprised between 90% and 200% of said internal dimension.
    [045] According to a particular embodiment in relation to a product whose distribution pressure is between 5 and 7 bars, the internal dimension of the upstream end 26 is 0.6 mm, the internal dimension of the downstream end 27 is less than or equal to 0.24 mm being in particular between 0.15 mm and 0.24 mm, the axial dimension of the swirl chamber 22 is at least equal to 0.55 mm, the axial dimension of the distribution orifice 23 is less than 0.10 mm.
    权利要求:
    Claims (17)
    [0001]
    1. PRESSURE BUTTON FOR A PRODUCT DISTRIBUTION SYSTEM UNDER PRESSURE, which the press button comprises a body (1) that has a reservoir (3) for mounting on an inlet tube (4) of the product under pressure and a housing (10) in communication with the reservoir, the housing being provided with an anvil (11) around which a spray nozzle (12) is mounted so as to form a product distribution path between the housing and a swirl assembly comprising a swirl chamber (22) provided with a distribution orifice (23) as well as at least one channel (24) for feeding the chamber, and the push button being characterized by the swirl chamber being delimited by a surface lateral (25) which has a tapered geometry in relation to which the feeding channel or channels (24) extend in a transverse plane, and the lateral surface converges from an upstream end (26) at which it ends tangentially the downstream end of the feed channel or channels (24) to a downstream feed opening (27) of the distribution port (23), which distribution port has an outlet dimension that is equal to the internal dimension of the downstream opening.
    [0002]
    2. PRESSURE BUTTON, according to claim 1, characterized by the lateral surface (25) having a tapered revolution geometry around a distribution axis (D).
    [0003]
    PRESSING BUTTON according to any one of claims 1 to 2, characterized in that the upstream end (26) has a cylindrical geometry of revolution in which the end downstream of the feed channels (24) ends tangentially.
    [0004]
    4. PRESSURE BUTTON according to any one of claims 1 to 3, characterized in that the internal dimension of the downstream opening (27) is less than 50% of the internal dimension of the upstream end (26).
    [0005]
    5. PRESSURE BUTTON, according to claim 4, characterized in that the internal dimension of the downstream opening (27) is between 20% and 40% of the internal dimension of the upstream end (26).
    [0006]
    6. PRESSURE BUTTON according to any one of claims 1 to 5, characterized in that the internal dimension of the downstream end (27) is less than or equal to 0.24 mm.
    [0007]
    PRESSING BUTTON according to any one of claims 1 to 6, characterized in that the axial dimension of the swirl chamber (22) is at least equal to 80% of the internal dimension of the upstream end (26).
    [0008]
    8. PRESSURE BUTTON, according to claim 7, characterized in that the axial dimension of the swirl chamber (22) is between 90% and 200% of the internal dimension of the upstream end (26).
    [0009]
    PRESSING BUTTON according to any one of claims 1 to 8, characterized in that a distribution orifice (23) is superimposed on the downstream opening (27) of the swirl chamber (22), the distribution orifice having a cylindrical geometry whose internal dimension is equal to the internal dimension of the downstream opening (27).
    [0010]
    10. PRESSURE BUTTON, according to claim 9, characterized in that the axial dimension of the distribution orifice (23) is less than 50% of the internal dimension of the orifice.
    [0011]
    PRESSING BUTTON according to any one of claims 1 to 10, characterized by the downstream end of the feed channel (24) or the set of downstream ends of each feed channel (24) forming a feed section of the swirl chamber (22), and the section surface is less than 10% of the inner surface of the upstream end (26).
    [0012]
    12. PRESSURE BUTTON, according to claim 11, characterized in that the surface of the feeding section of the swirl chamber (22) is between 0.01 mm2 and 0.03 mm2.
    [0013]
    13. PRESSURE BUTTON according to any one of claims 1 to 12, characterized in that the feeding channels (24) are delimited between an outer wall (28) and an inner wall (29), the outer wall (28) being it is tangent to the upstream end (26) and the inner wall (29) is offset from it by a distance of less than 30% of the inner dimension of the upstream end (26).
    [0014]
    PRESSURE BUTTON according to any one of claims 1 to 13, characterized in that the tourbillon set has at least two channels (24) for feeding the tourbillon chamber (22), which channels are arranged symmetrically in relation to the distribution axis (D).
    [0015]
    15. PRESSURE BUTTON according to any one of claims 1 to 14, characterized in that the nozzle (12) has a proximal wall (15) on which an impression of the whirlpool is formed and the anvil (11) has a distal wall ( 17) on which the proximal wall (15) of the nozzle (12) is in support to delimit the swirling set between them.
    [0016]
    16. PRESSURE BUTTON according to any one of claims 1 to 15, characterized in that the distribution path has an annular duct upstream (30) and an annular duct downstream (21), which annular ducts are in communication through of at least one axial conduit (18), and the feed channels (24) communicate with the annular conduit downstream.
    [0017]
    17. DISTRIBUTION SYSTEM OF A PRODUCT UNDER PRESSURE, characterized by comprising a withdrawal device (6) equipped with a product inlet tube (4) under pressure over which the reservoir (3) of a press button, as defined in any one of claims 1 to 16, it is mounted to allow spraying of the product.
    类似技术:
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    同族专利:
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    EP2496361B1|2014-01-08|
    EP2496361A1|2012-09-12|
    CN102596419B|2016-06-08|
    ES2456699T5|2021-05-04|
    WO2011055036A1|2011-05-12|
    US20120217322A1|2012-08-30|
    FR2952360B1|2011-12-09|
    FR2952360A1|2011-05-13|
    BR112012010556A2|2016-03-22|
    ES2456699T3|2014-04-23|
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    CN106687217A|2014-08-06|2017-05-17|约翰逊父子公司|Spray inserts|
    KR101661575B1|2014-10-22|2016-10-04|연우|Spray orifice structure|
    CN104492623B|2014-11-27|2017-10-13|西安秦泰汽车配件有限公司|A kind of atomizer|
    FR3032895B1|2015-02-24|2019-11-01|Albea Le Treport|PUSH BUTTON FOR A PRESSURE DISTRIBUTION SYSTEM OF A PRODUCT|
    CN204994473U|2015-08-03|2016-01-27|上海爱农机电设备有限公司|Portable superfine atomizing machine|
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    NL2015694B1|2015-10-30|2017-05-31|Dispensing Tech Bv|System and method for dispensing a liquid foam, in particular a direct-foam cleaning product.|
    FR3050125B1|2016-04-14|2021-12-17|Albea Le Treport|SPRAY NOZZLE, ESPECIALLY FOR A PRESSURE PRODUCT DISTRIBUTION SYSTEM EQUIPPED WITH A PUSH BUTTON, AND DISTRIBUTION SYSTEM INCLUDING SUCH A NOZZLE|
    US11020758B2|2016-07-21|2021-06-01|University Of Louisiana At Lafayette|Device and method for fuel injection using swirl burst injector|
    KR102077606B1|2018-03-15|2020-02-17|연우|orifice and spray vessel having the same|
    FR3104949A1|2019-12-20|2021-06-25|L'oreal|SPRAYING DEVICE WITH A BIPHASE COMPOSITION INCLUDING AN AQUEOUS PHASE CONSISTING OF ONE OR MORE POLYOLS AND AN OILY PHASE CONSISTING OF NON-SILICONE OILS|
    FR3106765A1|2020-02-04|2021-08-06|Eveon|MIST LIQUID SPRAY NOZZLE|
    法律状态:
    2017-11-28| B25D| Requested change of name of applicant approved|Owner name: ALBEA LE TREPORT (FR) |
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-01-28| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-07| B09A| Decision: intention to grant|
    2020-11-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 17/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    FR0905366A|FR2952360B1|2009-11-06|2009-11-06|PUSH BUTTON FOR A SYSTEM FOR DISTRIBUTING A PRESSURIZED PRODUCT|
    FR0905366|2009-11-06|
    PCT/FR2010/000726|WO2011055036A1|2009-11-06|2010-11-02|Pushbutton for a system for dispensing a pressurized substance|
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