• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    An axial dispensing valve (4) for a pressurized product dispensing device (1), comprising a dispensing member (41) and a cup (40) adapted to be fixed to a hollow body (20) of a dispensing device (1), said cup (40) comprising an outer face (4A) on which is fixed said distribution member (41) and an inner face (4B) opposite to said outer face (4A), said cup (40) being flexible so as to be mounted pre-stressed to a hollow body (20) of a dispensing device (1) and said cup (40) comprising a radially inner portion (RI) in which is fixed said dispensing member (41) and a portion radially outer (RE) whose inner face (4B) is convex.
    公开号:BE1022710B1
    申请号:E2015/0122
    申请日:2015-04-03
    公开日:2016-08-22
    发明作者:Frank FLECHEUX
    申请人:Frank FLECHEUX；
    IPC主号:
    专利说明:

    DISTRIBUTION VALVE FOR PRESSURIZED PRODUCT DELIVERY DEVICE AND METHOD FOR ASSEMBLING SUCH VALVE
    GENERAL TECHNICAL FIELD AND PRIOR ART
    The present invention relates to the field of the dispensing of a product under pressure, in particular, an aerosol bowl for the distribution of deodorants, paints, insecticides, cosmetic products, pharmaceutical products, food products or technical products. etc. The product to be dispensed can thus be fluid, viscous, in the form of a spray or in the form of a gel.
    In known manner, an aerosol comprises a storage box comprising a hollow cylindrical body whose lower end is closed and whose upper end comprises a dispensing valve.
    To make an aerosol, the cylindrical body of the bowl is first filled with a product to be dispensed via its upper end. Then, the upper end of the cylindrical body of the storage bowl is closed by mounting the dispensing valve. A propellant gas is then introduced into the cylindrical body to allow a distribution of the product under pressure.
    Ordinarily, to allow the closing of the storage bolt, a step of sealing the valve on the bolter, also known to those skilled in the art under the designation "dudonnage" is implemented. Such a closure method is known from the prior art, in particular by the patent application EP0507704 or by the standard definition document FEA 222. By way of example, with reference to FIG. 1, a dispensing device 100 closed by "dudonnageonnage" comprises a storage bowl 101 having an annular upper edge 102, on which is crimped an annular cup 104 of a dispensing valve 103, so as to form a lip. The annular upper edge 102 of the bowl 101 is known to those skilled in the art under the designation "rolled" since it is obtained by rolling the wall of the cylindrical body of the storage bowl 101. This type of closing process is robust and has been used for several decades to close aerosols.
    Such a closure method nevertheless has many disadvantages. First, the rolled edge 102 of the storage case 100 is complex to obtain in a repeatable manner since it must respect a plurality of very precise ribs. Although the manufacture of the rolled edge 102 is highly industrialized, the manufacturing steps and control of such a rolled edge 102 are numerous, which increases its manufacturing cost. In addition, a rolled edge 102, to be sufficiently strong, must have a reinforced wall thickness, which has a high material cost. In addition, in order to allow forming of the rolled edge 102, it is necessary to varnish the inner wall of the storage case 100, which increases the cost of said storage case 100. Indeed, the coating operation induced, of on the one hand, costs related to its application (coating machines, varnish baking oven, etc.) and, on the other hand, costs related to its control (machine for measuring the porosity of the varnish, etc.).
    In practice, the return quality of a product to be dispensed in the form of a spray is a function of the permissible pressure in the storage box. In known manner, the admissible pressure in a storage box 100 closed by "dudonnageonnage" is at most of the order of 15 bars at 50 ° C (see the Aerosol Directive 75/324 / EEC), which may present a drawback .
    In order to avoid the use of such a rolled edge and to allow an increase in the fluid pressure in a storage case, it has been proposed by the patent application WO2011 / 093786 A1 to form a box with a wall closing on the dispensing valve. Nevertheless, such a case has a wall length increased compared to the prior art to cover the dispensing valve, which complicates the assembly and increases the cost of manufacture. The invention proposes to provide a product dispensing device that offers an optimal closure quality, which is simple to manufacture and to implement. In addition, the invention proposes to provide a dispensing device whose resistance to pressure is improved while having a reduced manufacturing price.
    GENERAL PRESENTATION OF THE INVENTION To this end, the invention relates to an axial dispensing valve for a pressurized product dispensing device, comprising a dispensing member and a cup adapted to be fixed to a hollow body of a dispensing device, said cup having an outer face on which is fixed said dispensing member and an inner face opposite to said outer face. The invention is remarkable, on the one hand, in that the cup is flexible so as to be mounted prestressed to a hollow body of a dispensing device and, on the other hand, in that the cup has a portion radially interior in which is fixed said dispensing member and a radially outer portion whose inner face is convex.
    On the convex inner side, we mean a face that can be conical, parabolic, spherical, and so on. Thereafter, the radially inner and radially outer terms are defined with respect to the axis of the valve.
    First, such a dispensing valve has a simple design and does not include a wall having undergone many deformation steps to obtain, for example, a lip. Unlike the prior art which favored a rigid cup, the cup of the dispensing valve according to the invention is flexible and convex. The synergy of its two characteristics makes it possible to introduce the cup into a mounting opening by applying mechanical prestressing. In addition, when the mechanical preload is released, the cup allows, thanks to its flexibility, to relax and come to lock in the mounting opening. This locking is secured by the fact that the inner face of said cup is convex. After closure, the pressurized product comes to apply a mechanical stress on the radially outer portion of the cup which tends to straighten the cup, that is to say, reduce its deflection, because of its convexity. In other words, the mechanical stress of the pressurized product makes it possible to secure the locking and the position of the dispensing valve in the storage box by converting an axial force into a radial locking force.
    In other words, there is no need to use attached fastening means or crimping steps to block the dispensing valve, which is advantageous. The dispensing valve is advantageously indémontable storage case.
    Finally, because of its simple design, the dispensing valve requires less material compared to the prior art, which is advantageous, such a distribution valve allows a mass gain of 1 to 3 g compared to a valve of classic distribution with a coping.
    Preferably, the cup consists of the radially inner portion in which is fixed said dispensing member and the radially outer portion whose inner face is convex.
    Preferably, said outer face of the radially outer portion of said cup is uniformly convex so that the pressurized product applies a homogeneous mechanical stress on the cup so as to reduce its deflection. In addition, such a cup is simple to form.
    According to a preferred aspect of the invention, said cup comprises an angled peripheral edge in order to improve the locking of the cup in a storage box. Thus, the inner face of the cup may comprise portions of different convexities.
    Preferably, said radially outer portion of the cup has a constant thickness, which facilitates the production of the cup and the formation of its curvature.
    In a preferred aspect, the cup has an annular peripheral edge. In addition to its simple design which limits its cost of production, an annular peripheral edge allows a uniform blocking in a cylindrical neck of annular section while avoiding any defect of inclination or angular orientation. Thus, the dispensing valve is positioned precisely relative to the storage case, which improves the aesthetic appearance. The invention also relates to a pressurized product dispensing device comprising: - a storage box comprising a hollow body filled with pressurized product, a mounting opening and a cylindrical neck connecting said hollow body to said mounting opening, and - a valve distribution, as presented above, whose cup is mounted prestressed in said cylindrical neck and said inner face of said cup is turned towards said hollow body.
    The cooperation of the cup of the dispensing valve with the cylindrical neck of the storage bin ensures a uniform blockage by taking advantage of the flexibility of the cup and the convexity of its inner face in contact with the pressurized product. The assembly of the dispensing valve is thus simple and quick to implement to contain the pressurized product.
    The storage case has a simple design, devoid of rolling, which allows a mass gain of 5% to 10%, which is advantageous.
    Advantageously, the dimensional accuracy of the Valve / Botier assembly is improved. Indeed, in the prior art, the swaging process caused a deformation of the valve cup creating variations in the dispensing member, which caused accidental emptying of the dispensing device or leaks. Advantageously, the assembly of a convex-shaped valve in a housing eliminates this problem since according to the invention the cup is mounted with the dispensing member in its final position of use. No subsequent mechanical operation affects the vertical position of the dispensing member as could be the case with a "dudonnage" assembly.
    In addition, such a dispensing device is simple to control since each parameter can be directly measured, which was not the case in the prior art with a rolled edge or a dispensing valve equipped with a lip which are difficult to measure after assembly. In particular, it is no longer necessary to measure the "contact height" of the rolled edge and the "contact height" of swaging which are known to those skilled in the art. Thanks to the invention, the controls can be automated and systematized to each product distribution device. Such controls improve quality compared to the statistical controls that were performed in the prior art.
    Thanks to the invention, the manufacturing process is shortened and requires less forming step to achieve the dispensing device. The operations of producing the rolled edge, machining and rolling can advantageously be avoided. In addition, it eliminates the risk of pollution related to these machining operations that are likely to generate chips and particles settling on the inner wall and the outer wall of the casing. In addition, the storage case can be formed with greatly reduced or eliminated lubrication, which provides environmental benefits and improves the aesthetic appearance of the dispensing device. The invention makes it possible to manufacture industrially the storage container without internal lacquer, which is a break with the traditional methods that require the application of varnish to allow the forming operation of the rolled edge. Finally, the closure quality makes it possible to store pressurized products at high pressure, preferably up to 30 or 40 bars.
    Preferably, the cup having a peripheral edge, said cylindrical neck having an inner surface, said peripheral edge of the cup is in abutment against said inner surface of said cylindrical neck. Thus, the cup is blocked in force in the cylindrical neck and exerts a stress on the inner surface of the cylindrical neck. The greater the pressure of the pressurized product, the greater the force applied by the peripheral edge, which ensures optimal blocking even with a product under high pressure. The sealing of the dispensing device is thus ensured.
    In one aspect, the transverse dimension of the cup in the non-prestressed state is greater than the cross section of the cylindrical neck. Thus, because of its flexibility, the cup is naturally prestressed in the cylindrical neck.
    In a particular aspect, the cross section of the cylindrical neck is annular so as to cooperate with an annular cup. The angular orientation of the dispensing valve is thus indifferent during assembly, which is advantageous.
    Preferably, the cylindrical neck comporfanf a peripheral shoulder, the cup having a peripheral edge, said peripheral edge bears against said peripheral shoulder of said cylindrical neck. Such a peripheral shoulder is advantageous because it ensures a precise reference surface for the positioning of the dispensing valve in the cylindrical neck. The dispensing devices thus formed are advantageously identical. Preferably, the circumferential shoulder dimension is configured to prevent passage of the cup even when the cup is resiliently biased.
    More preferably, the cylindrical neck having a peripheral groove, the cup having a peripheral edge, said peripheral edge is housed in said peripheral groove of said cylindrical neck. Such a peripheral groove is advantageous because it limits the insertion stroke of the dispensing valve in the cylindrical neck to the hollow body or to the mounting opening. In addition, any cup removal is made impossible, which improves the resistance to pressure. The cup is thus perfectly locked in the cylindrical neck.
    Preferably, the dispensing device comprises a peripheral seal mounted between said cup and said cylindrical neck. Thus, the seal is constrained during assembly of the dispensing valve and then has optimum sealing characteristics.
    Preferably, the cylindrical neck has an upper edge which is folded inwardly so as to form a safety locking means preventing disassembly of the dispensing valve. The invention also relates to a method of assembling a dispensing device as presented above, comprising a step of inserting the cup into force so as to maintain said cup in the prestressed state in said cylindrical neck of the casing of storage, the inner face of said cup being turned towards the hollow body of the storage cabinet. Thus, the blocking of the dispensing valve and the sealing of the dispensing box are ensured.
    Advantageously, the assembly of the cup makes it possible to form a dispensing device whose resistance to pressure is improved compared to a conventional assembly. Indeed, at present, a resistance to pressure greater than 15 bar is difficult to control. With the assembly proposed by the invention, the test pressure is increased significantly since the pressurized product contributes to strengthening the locking of the cup in the storage case. The invention also relates to a method of assembling a dispensing device as presented above, comprising a step of insertion into said cylindrical neck of the storage box, the convex inner face of said cup being turned towards the hollow body of the storage case and a step of reducing the cross section of said cylindrical neck to lock the cup. Thus, the blocking of the dispensing valve and the sealing of the dispensing box are ensured.
    Preferably, the transverse dimension of said cylindrical neck before insertion is greater than the cross section of the cup to allow easy insertion prior to the reduction step. The invention is further directed to a method of filling a dispensing device as presented above, the method comprising a step of filling the hollow body of the storage bin with a pressurized product and a step of closing the dispensing device by means of a insertion of the cup into said cylindrical neck of the storage bin, the inner face of said cup being turned towards the hollow body of the storage bin.
    Such a filling method is simple to implement and the quality of the closure can be controlled in a practical, reliable and fast manner.
    PRESENTATION OF THE FIGURES The invention will be better understood on reading the description which follows, given solely by way of example, and referring to the appended drawings in which: FIG. 1 is a schematic representation of a distribution device product closed by a swaging process according to the prior art; FIG. 2 is a representation of a step of assembling a product dispensing device according to the invention; FIG. 3 is a representation of a step of forcibly inserting a dispensing valve into a storage bin of the fluid dispensing device of FIG. 2; FIG. 4 is a close-up representation of part of FIG. 3; - Figure 5 is a representation of an assembled product dispensing device according to the invention; - Figure 6 is a schematic representation of another embodiment of a storage case of a product dispensing device according to the invention whose section is constant; FIG. 7 is a schematic representation of another embodiment of a storage box of a product dispensing device according to the invention with a peripheral groove; - Figure 8 is a schematic sectional representation of another embodiment of a dispensing valve of a product dispensing device according to the invention with a bent peripheral edge; - Figure 9 is a schematic top view of the dispensing valve of Figure 8; - Figure 10 is a schematic sectional representation of another embodiment of a dispensing valve of a product dispensing device according to the invention with radial stiffeners; - Figure 11 is a schematic top view of the dispensing valve of Figure 10; - Figure 12 is a schematic sectional representation of another embodiment of a product dispensing device according to the invention, the upper edge of the storage case is folded down; - Figure 13 is a schematic sectional representation of another embodiment of a product dispensing device according to the invention, the upper edge of the storage case is folded down; and FIG. 14 is a diagrammatic representation in section of another embodiment of a product dispensing device according to the invention, the upper edge of the storage box of which is folded down with a seal.
    It should be noted that the figures disclose the invention in detail to implement the invention, said figures can of course be used to better define the invention where appropriate.
    DESCRIPTION OF ONE OR MORE MODES OF REALIZATION AND IMPLEMENTATION The invention will be presented later for an aerosol for the distribution of deodorants, etc. Nevertheless, it goes without saying that the invention applies to any device for dispensing a product under pressure, in particular, paints, insecticides, antiperspirants, hair spray, styling foams, shaving gels, foggers, whipped creams, etc. The product to be dispensed can thus be fluid, viscous, in the form of a spray or in the form of a gel. Furthermore, the invention applies to any type of aerosol, with or without a piston, with or without a pocket for storing the product to be dispensed.
    First embodiment: cylindrical neck with peripheral edge
    With reference to FIGS. 2 to 5, there is shown a first embodiment of a device for dispensing a product under pressure 1 according to the invention. The dispensing device 1 comprises a storage box 2 which is closed by a dispensing valve 4.
    With reference to FIG. 2, the dispensing valve 4 extends axially along an axis X and comprises a closing wall, hereinafter referred to as a cup 40, comprising a peripheral edge 42 and defining an outer face 4A on which is fixed a distribution member 41, known to those skilled in the art under its English name "stem", and an inner face 4B opposite to said outer face 4A. Said cup 40 has a radially inner portion R1 with respect to the axis X in which is mounted the dispensing member 41 and a radially outer portion RE with respect to the axis X. The cup 40 comprises in its radially inner portion RI a through-orifice 43, preferably a central orifice, to which the dispensing member 41 is connected. The dispensing member 41 is preferably in the form of a mechanical actuator of the diffuser type which is connected to a dip tube (not shown) extending on the side of the inner face 4B.
    With reference to FIGS. 2 and 3, the cup 40 is flexible so as to be mounted prestressed in a hollow body 20 of the storage box 2. The cup 40 is preferably made of metal, thermo-hard plastic or thermoplastic and has a constant thickness, preferably of the order of 0.25 to 0.6 mm but it is obvious that other materials or other thicknesses could also be suitable.
    According to the invention, the inner face 4B of the radially outer portion RE of said cup 40 is convex. In this embodiment, the inner face 4B of the radially outer portion RE of said cup 40 is uniformly convex. In the free state, the cup 40 has an arrow Δ which corresponds to the distance between its low point and its high point. Subsequently, the angle formed between the radially outer portion RE of said cup 40 and the horizontal plane as illustrated in FIG. 4 is denoted by a. At the free step, the arrow Δ of the cup 40 is at the maximum of the order of 4mm while the angle a is at most equal to 30 °.
    In this embodiment, the cup 40 has a peripheral edge 42 which is annular and has a diameter D4 in the non prestressed state, i.e., prior to mounting in the storage case 2. As a for example, the non-prestressed diameter D4 is of the order of 11 to 35 mm. As will be presented later, the non-prestressed diameter D4 must be slightly greater than the diameter D3 of the storage case 2.
    The dispensing valve 4 having been presented, the storage box 2 of FIG. 2 will now be described in detail.
    With reference to FIG. 2, the storage box 2 comprises a hollow body 20, a mounting opening 21 and a cylindrical neck 3 connecting said hollow body 20 to said mounting opening 21. In this example, the hollow body 20 has a cylindrical shape and the cylindrical neck 3 is formed at its upper end.
    Referring to Figure 2, the cylindrical neck 3 is of annular section and defines an inner face 3A and an outer face 3B opposite to the inner face 3A. In this embodiment, the cylindrical neck 3 extends vertically from the hollow body 20 of the storage case 2, the upper end of the cylindrical neck 3 thus forming the mounting opening 21 of the storage case 2 as illustrated in FIG. figure 2.
    Preferably, the storage box 2 is made of aluminum or tinplate but it is obvious that other metallic or plastic materials could be suitable, for example, copper, zinc or plastic materials of the PE, PP type. , PET, PEN pure or mixed. The storage bin 2 may comprise an interior surface varnished according to the applications. The mounting opening 21 of the storage box 2 is annular and has an opening diameter D3 as shown in FIG. 2. By way of example, the opening diameter D3 is of the order of 10 to 35 mm. . Preferably, the opening diameter D3 is smaller than the non-prestressed diameter D4 of the cup from 0.05 to 0.5 mm.
    With reference to FIG. 2, the cylindrical neck 3 comprises an upper part 31 situated on the side of the mounting opening 21, and a lower part 32 situated on the side of the hollow body 20 whose opening diameter D 2 is less than the opening diameter D3 of the upper part 31, that is to say, the opening diameter of the mounting opening 21 formed at the upper end of the cylindrical neck 3. By way of example, the opening diameter D 2 is smaller than the opening diameter D 3 from 1 mm to 2 mm.
    In other words, the cylindrical neck 3 has a peripheral shoulder 33 adapted to serve as support for mounting the dispensing valve 4 as shown in FIG. 4.
    Preferably, the storage box 2 is formed by a stamping and forming process.
    With reference to FIG. 2, the non-prestressed diameter D4 of the cup 40 is greater than the opening diameter D3 of the mounting opening 21 of the storage box 2. Thus, when the cup 40 is mounted in the cylindrical neck 3 of the storage case 2, the cup 40 must be prestressed as will be presented in the following implementation example.
    The peripheral edge 42 is preferably beveled so as to be in plane contact with the inner surface 3A of the cylindrical neck 3 in the mounting position to improve locking as shown in FIG. 4.
    Example of implementation
    The storage case 2 and the dispensing valve 4 having been presented, the mounting of the dispensing valve 4 in the storage case 2 will now be described.
    Ordinarily, the storage case 2 and the dispensing valve 4 are made independently before assembly. Prior to assembly, a product to be dispensed, preferably liquid, is introduced into the hollow body 20 of the storage box 2 via its mounting opening 21. In other words, the storage box 2 is filled.
    In order to close the storage case 2 with the dispensing valve 4, the convex face 4B of the cup 40 of said dispensing valve 4 is positioned on the mounting opening 21 forming the upper end of the cylindrical neck 3 and is turned towards the hollow body 20 of the storage box 2 as illustrated in FIG. 2.
    The non-prestressed diameter D4 of the peripheral edge 42 of the cup 40 being greater than the opening diameter D3 of the mounting opening 21 of the storage box 2, the assembly method comprises a step of insertion by force of the cup 40 in said cylindrical neck 3 in order to mount the dispensing valve 4 prestressedly in the cylindrical neck 3 of the storage case 2.
    During the insertion step and thanks to the flexibility of the cup 40, the arrow of the cup 40 increases in order to penetrate the cylindrical neck 3 as shown in Figure 3.
    With reference to FIG. 4, when the peripheral edge 42 of the cup 40 comes into contact with the peripheral shoulder 33 of the cylindrical neck 3, any downward movement of the cup 40 is prevented, that is to say, a displacement towards the hollow body 20. In other words, the cup 40 is in abutment on the shoulder 33. In fact, the flexibility of the cup 40 is insufficient to allow it to extend in the opening diameter D2 of the lower part 32 of the cylindrical neck 3.
    In other words, the cup 40 has, on the one hand, in the unconstrained state, a diameter D4 greater than the opening diameter D3 of the mounting opening 21 and, on the other hand, in the stressed state, a diameter which is smaller than the opening diameter D3 of the upper part 31 of the cylindrical neck 3 but which is greater than the opening diameter D2 of the lower part 32 of the cylindrical neck 3 as illustrated in FIG.
    Still with reference to FIG. 3, during the insertion of the dispensing valve 4, a mechanical insertion force is applied centrally to the concave outer face 4A of the cup 40 (arrow Fl), which increases its deflection by shrinking the diameter of its peripheral edge 42 (arrows F2). When the mechanical insertion force is no longer applied, because of the flexibility and elasticity of the cup 40, the peripheral edge 42 of the cup 40 expands and comes into contact with the inner surface 3A of the cylindrical neck 3 (Figure 4), which blocks the position of the cup 40 and ensures a tight fitting. Preferably, with reference to FIG. 4, in the mounted position, the arrow Δ of the cup 40 increases from 0.1 mm to 0.5 mm while the angle a increases by 1 to 5 ° in comparison with the state free of the cup 40.
    Then, a propellant fluid is introduced into the hollow body 20 of the storage box 2 via the dispensing member 41 of the dispensing valve 4, the propellant fluid being compressed or liquefied. Alternatively, the propellant can be introduced prior to the closing of the storage box 2 by the dispensing valve 4. The propellant is mixed with the product to be dispensed into the hollow body 20 of the storage box 2 to form a product pressurized to distribute.
    As illustrated in FIG. 5, in the mounted position, the pressurized product G of the hollow body 20 exerts a pressure on the inside face of the radially outer portion RE of the cup 40 (arrow F3), which tends to reduce its deflection and to increase the diameter of its peripheral edge 42 (arrow F4) due to the flexibility of the cup 40. In other words, the stress between the cup 40 and the cylindrical neck 3 increases due to the pressurized product G, which ensures a tight seal and quality. The greater the pressure of the product G within the storage casing 2, the greater the force exerted radially (arrow F4), which improves the seal. The radially outer portion RE of the cup 40 makes it possible, because of its convexity, to convert any axial force of the product G into a radial force against the cylindrical neck 3.
    Thus, a dispensing device 1 perfectly locked and sealed at a limited manufacturing price. Indeed, the storage bin 2 has a cylindrical neck 3 whose manufacture is cheap compared to the prior art since it does not require manufacturing a rolled edge. In addition, since the casing no longer has a rolled upper edge, it has been estimated that an average material saving of 1 to 3 g can be achieved for a conventional aerosol. Finally, the production of a storage box without varnish application is possible.
    The dispensing valve 4 has for its part a reduced cost since the cup 40 is simple to manufacture and requires no machining step or complex stamping. Finally, the equipment required for the assembly of the dispensing valve 4 in the storage bin 2 is reduced, which speeds up the production rates and facilitates the control steps. No complex step crimping then being implemented.
    In use, when the mechanical member 41 is pressed down towards the hollow body 20 of the storage casing 2, the dispensing valve 4 is open and the product to be dispensed can escape from the dispensing device 1. D ' Other embodiments and advantageous variants of a dispensing device according to the invention will now be presented.
    Second embodiment: cylindrical neck of constant section
    According to another embodiment, with reference to FIG. 6, the cylindrical neck 3 has a diameter of constant opening along its length, that is to say, without any peripheral shoulder 33. Also, the cup 40 is blocked in the cylindrical neck 3 when the mechanical force applied centrally to the outer face 4A of the cup 40 is stopped at the end of the insertion. The cup 40 is immobilized because of its flexibility and the pressure of the pressurized product G in the storage case 2. The radially outer portion RE of the cup 40 allows optimal fixation. Indeed, the mechanical force required to set up the dispensing valve 4 is significantly greater than the force applied by the user on the dispensing member 41 to dispense pressurized product.
    Such an embodiment is economical since the storage case 2 has a very simple design.
    Third embodiment: cylindrical neck with peripheral aorae
    According to another embodiment, with reference to FIG. 7, the cylindrical neck 3 having a peripheral groove 34 whose opening diameter is greater than that of the diameter D3 of the cylindrical neck 3. The thickness of the peripheral groove 34 is greater than the thickness of the peripheral edge 42 of the cup 40. Thus, said peripheral edge 42 is housed in said peripheral groove 34 of the cylindrical neck 3 during insertion into the cylindrical neck 3, which prevents any displacement of the cup 40 both up and down. The peripheral groove 34 makes it possible to secure the mounting of the dispensing valve 4 in the storage case 2. In addition, because of its shape, the peripheral groove 34 makes it possible to increase the rigidity of the cylindrical neck 3, which makes it possible to reduce the thickness of the cylindrical neck while maintaining a high radial strength. The dispensing valve is thus locked in position.
    Presence of a seal
    According to a preferred variant of the invention, with reference to FIG. 7, a peripheral seal 5 is mounted between the cup 40 and said cylindrical neck 3. By way of example, the peripheral seal 5 is annular and is made of a plastic material, for example, with a hardness of the order of 40-80 Shore. Preferably, the peripheral seal 5 has an L-shaped section but it goes without saying that an O-ring could be suitable. Similarly, a liquid seal previously applied to the valve 4 or the housing 2 could also be suitable.
    Preferably, the peripheral seal 5 is mounted to the cup 40 of the dispensing valve 4 so as to be compressed between the peripheral edge 42 of the curved flexible cup 40 and the inner face of the cylindrical neck 3, which ensures an optimum seal between the cup 40 and the cylindrical neck 3.
    It goes without saying that a seal could be mounted in a dispensing device 1 for other configurations of the storage box 2 or of the dispensing valve 4.
    Peripheral edge raised 42
    According to a preferred variant of the invention, with reference to FIGS. 8 and 9, the radially outer portion RE of the cup 40 comprises a central portion 40a having a first radius of curvature and a peripheral portion 40b having a second smaller radius of curvature. than the first radius of curvature so that the peripheral edge 42 of the cup 40 is raised. Such a cup 40 advantageously allows to guide the assembly of the casing 2 at the time of introduction of the valve 4 into the cylindrical neck 3.
    Ribs 44
    According to a variant of the invention, the cup 40 has on its outer face 4A at least one stiffener adapted to stiffen the cup 40. Preferably, with reference to FIGS. 10 and 11, the cup 40 comprises a plurality of ribs 44, extending radially around the dispensing member 41, to increase the rigidity of the cup 40. Such ribs 44 can improve the strength of the cup 40 vis-à-vis the pressurized product pressure G without increasing the thickness of the cup 40. The orientation of the ribs 44 guides the forces experienced by the cup 40 radially to the cylindrical neck 3 to allow an optimal sealing.
    It has been presented ribs 44 formed on a cup 40 as defined in Figure 2, but it goes without saying that such ribs 44 may be provided on any embodiment of a cup 40 according to the invention.
    Upper edge 35
    According to a variant of the invention, with reference to FIG. 12, the cylindrical neck 3 comprises an upper edge 35 which is folded inwards so as to form a safety locking means preventing any disassembly of the dispensing valve 4 The folded edge 35 preferably extends horizontally to reduce the diameter of the mounting aperture. It is obvious that the folded edge 35 could have another shape. In this example, the upper edge 35 is folded back after mounting of the dispensing valve 4 in the cylindrical neck 3.
    According to one aspect of the invention, the transverse dimension of said cylindrical neck 3 before insertion is greater than the cross section of the cup 40 to allow easy insertion prior to the reduction step. The cup 40 is constrained by the pressurized product G. By way of example, with reference to FIG. 13, the upper edge 35 is deformed by crimping so as to prevent any disassembly and to further block a displacement of the dispensing valve. 4 vertically down. Preferably, as illustrated in FIG. 14, a peripheral seal 5 is mounted in the dispensing device so as to be compressed between the peripheral edge 42 of the curved flexible cup 40 and the upper edge 35 of the cylindrical neck 3. , which ensures an optimum seal between the cup 40 and the cylindrical neck 3. It is shown in Figure 14 a peripheral seal 5 which extends all around Ια cup deα valve. The peripheral seal 5 has a U-shaped section and defines an upper portion, a lateral portion, and a lower portion. Nevertheless, it goes without saying that the peripheral seal 5 could have a different shape and have only one or two parts. In particular, the seal 5 could comprise only an upper portion mounted above the cup or a lower portion mounted below the cup or a side portion mounted on the side of the cup .
    Advantageously, as illustrated in FIG. 13, deformation of the upper edge 35 facilitates closure and optimally controls the quality of said closure by measuring the value of the GH / OD and ID dimensions known to man. of the trade, in a practical and fast manner. For example, dimensions can be controlled by means of a continuous vision system, with comparators or calipers.
    权利要求:
    Claims (15)
    [1]
    1. An axial distribution valve (4) for a dispensing device (1) for pressurized product, comprising a dispensing member (41) and a cup (40) adapted to be fixed to a hollow body (20) of a dispensing device. distribution (1), said cup (40) having an outer face (4A) on which is fixed said dispensing member (41) and an inner face (4B) opposite to said outer face (4A), valve characterized by the fact that said cup (40) is flexible so as to be preloaded to a hollow body (20) of a dispensing device (1) and in that said cup (40) has a radially inner portion (RI) in which is fixed said dispensing member (41) and a radially outer portion (RE) whose inner face (4B) is convex.
    [2]
    2. Dispense valve (4) according to claim 1, wherein said inner face (4B) of the radially outer portion (RE) of said cup (40) is uniformly convex.
    [3]
    3. Dispense valve (4) according to one of claims 1 to 2, wherein said cup (40) has a peripheral edge (42) bent.
    [4]
    4. Dispense valve (4) according to one of claims 1 to 3, wherein the radially outer portion (RE) of said cup (40) has a constant thickness.
    [5]
    5. Dispense valve (4) according to one of claims 1 to 4, wherein said cup (40) has an annular peripheral edge (42).
    [6]
    6. Device for dispensing (1) pressurized product comprising: - a storage box (2) comprising a hollow body (20) filled with pressurized product (G), a mounting opening (21) and a cylindrical neck (3) connecting said hollow body (20) to said mounting opening (21), and - a dispensing valve (4) according to one of claims 1 to 5, the cup (40) of which is prestressed in said cylindrical neck ( 3) and said inner face (4B) of said cup (40) is facing said hollow body (20).
    [7]
    7. Dispensing device (1) according to claim 6, wherein, the cup (40) having a peripheral edge (42), said cylindrical neck (3) having an inner surface (30), said peripheral edge (42) of the cup (40) bears against said inner surface (30) of said cylindrical neck (3).
    [8]
    8. Dispensing device (1) according to one of claims 6 to 7, wherein the transverse dimension (D4) of the cup (40) in the non-prestressed state is greater than the cross section (D3) of the neck cylindrical (3).
    [9]
    9. Dispensing device (1) according to one of claims 6 to 8, wherein the cross section of the cylindrical neck (3) is annular.
    [10]
    10. Dispensing device (1) according to one of claims 6 to 9, wherein the cylindrical neck (3) having a peripheral shoulder (33), the cup (40) having a peripheral edge (42), said edge peripheral (42) bears against said peripheral shoulder (33) of said cylindrical neck (3).
    [11]
    11. Dispensing device (1) according to one of claims 6 to 9, wherein the cylindrical neck (3) having a peripheral groove (34), the cup (40) having a peripheral edge (42), said edge peripheral (42) is housed in said peripheral groove (34) of said cylindrical neck (3).
    [12]
    12. Dispensing device (I) according to one of claims 6 to 11, comprising a peripheral seal (5) mounted between the cup (40) and said cylindrical neck (3).
    [13]
    13. Dispensing device (1) according to one of claims 6 to 12, wherein said cylindrical neck (3) has an upper flanged edge (35).
    [14]
    14. A method of assembling a dispensing device (1) according to one of claims 6 to 13, the method comprising a step of force insertion of the cup (40) so as to maintain said cup (40) to the prestressed state in said cylindrical neck (3) of the storage bowl (2), the inner face (4B) of said cup (40) being turned towards the hollow body (20) of the storage box (2).
    [15]
    15. A method of filling a dispensing device (1) according to one of claims 6 to 13, the method comprising: - a step of filling the hollow body (20) of the storage box (2) with a pressurized product ( BOY WUT) ; and a step of closing the dispensing device (1) by inserting the cup (40) into said cylindrical neck (3) of the storage box (2), the inner face (4B) of said cup (40) being turned towards the hollow body (20) of the storage box (2).
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    同族专利:
    公开号 | 公开日
    AR100056A1|2016-09-07|
    BE1022710A1|2016-08-22|
    FR3020114A1|2015-10-23|
    FR3020114B1|2016-04-29|
    WO2015158609A1|2015-10-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2854176A|1955-10-19|1958-09-30|Illinois Tool Works|Dispensing valve assembly|
    FR88614E|1961-04-21|1967-03-03|Uniplast Dr Raehs Kg|Aerosol valve|
    FR1452438A|1965-10-26|1966-02-25|Device for assembling elements by clipping|
    US3819090A|1972-05-12|1974-06-25|Reflex Corp Canada Ltd|Aerosol valve cup and safety collar|
    JPH11171270A|1997-12-15|1999-06-29|Osaka Ship Building Co Ltd|Lid-fixing structure and pressure-type dispenser product|
    WO2015061188A1|2013-10-23|2015-04-30|The Procter & Gamble Company|Compressible valve for a pressurized container|
    US2550840A|1946-09-24|1951-05-01|Universal Properties Inc|Valve control for pressure fluid containers|
    FR2674829B1|1991-04-03|1994-09-23|Cebal|METALLIC DISTRIBUTOR HOUSING WITH VALVE CUP EXTERNALLY SERVED.|
    FR2792295B1|1999-04-16|2001-06-22|Valois Sa|FIXING MEMBER FOR A FLUID PRODUCT DISPENSER AND DISPENSER COMPRISING SUCH A MEMBER|
    US20100206891A1|2007-07-27|2010-08-19|Werner Boltshauser|Can body and process and device for producing it|
    PT2476494E|2011-01-12|2013-10-17|Ardagh Mp Group Netherlands Bv|Pressurised metal container preform and a method of making same|US10562697B2|2016-09-14|2020-02-18|Crown Packaging Technology, Inc.|Compact aerosol container|
    法律状态:
    2021-02-03| MM| Lapsed because of non-payment of the annual fee|Effective date: 20200430 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1453384A|FR3020114B1|2014-04-16|2014-04-16|DISTRIBUTION VALVE FOR PRESSURIZED PRODUCT DELIVERY DEVICE AND METHOD FOR ASSEMBLING SUCH VALVE|
    FR1453384|2014-04-16|
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