Dose counter for a dispensing device, dispensing device and associated dispensing assembly

Abstract

Dose counter for a dispensing device, dispensing device, and associated dispensing assembly. This dose counter (100) for a dispensing device (20) for multiple doses of a product comprises a first graduated rotating element (110), a second graduated rotating element (120), and a transmission mechanism (130) between the first and second rotating elements. The first rotating element includes first reliefs (119A) and second reliefs (119B), which alternately cooperate with the transmission mechanism (130) so as to rotate the second rotating element by one graduation each time the first rotating element completes one full revolution. The graduation of the second rotating element comprises at least two identical adjacent digits.The dose counter (100) includes a priming cover (150), which is arranged to obscure a viewing window (302) for the graduations until the second rotating element (120) has been driven into rotation at least once. See Figure 4 for abbreviations.

Description

Title of the invention: Dose counter for a dispensing device, dispensing device and associated dispensing assembly

[0001] The present invention relates to a dose counter for a dispensing device, in particular a drug dispensing device, a dispensing device comprising such a dose counter, and a dispensing assembly comprising such a dispensing device.

[0002] We are particularly interested here in dispensing assemblies comprising a container, which holds several doses of a product in liquid form, for example as a suspension or entirely liquid, or in solid form, for example as a powder or tablet, and a dispensing device comprising a dispensing member with an actuator, the actuator being user-operable, so as to deliver a predetermined quantity of the product contained in the container, in other words, to deliver a dose of the product. Particularly in the medical field, where the product contained in the container is a medicinal product, it is useful for the user to know how many doses are still available in the container or how many doses have already been dispensed.To this end, the dispensing device also includes a dose counter, which is activated each time the user operates the actuator to deliver a dose of the product, for example, via a mechanical linkage between the actuator and the dose counter. More specifically, some treatments require the patient to take a precise amount of medication; an underdose can lead to a lack of effect, while an overdose can cause adverse effects of varying severity. The presence of a dose counter allows the patient to have more reliable information about taking the medication and also to know whether the dispensing unit contains enough doses of medication to ensure the treatment is administered correctly.

[0003] The dose counter generally includes an indicator with digits, so as to provide the user with a numerical indication of the number of doses dispensed or remaining in the container. Since the containers generally hold several dozen doses, it is known to make counting devices with two graduated elements, usually in the form of rotating wheels or rings, the first of the two graduated elements indicating the units digit of the number of doses remaining, while the second of the two graduated elements indicates the tens digit of the number of doses remaining or the tens and hundreds digit of the number of doses remaining. Number of doses remaining. Document FR-2 940 642-Al describes an example of such a dose counter.

[0004] It is also known to provide a cover, which indicates to the user that all the intended doses have been used. WO-2009 / 103711-A1 describes, for example, a dose counter comprising two graduated rings. The tens ring includes a cover, which extends over the units ring so as to obscure the units digit when the dose counter reaches zero, in other words, when the number of doses available in the container is estimated to be zero.

[0005] In many cases, particularly for liquid products, the dispensing assembly is provided with a dispensing device comprising a pump and an internal conduit opening through an outlet. The user operates the pump, via the actuator, to draw the product into the internal conduit and expel it through the outlet. During the manufacture of the pump and when the dispensing device is assembled to the container to form the dispensing assembly, the pump is not primed with product to be dispensed. Upon first use, the user must follow a pump priming procedure, generally by operating the dispensing device a predetermined number of times until the internal conduit and the pump are filled with the product.Once the priming procedure is complete, the dispensing assembly is ready for use; that is, the dispensing device delivers the expected dose each time the user activates the actuator.

[0006] The user must therefore read the instructions for the dispensing unit to determine the number of actuations required for the priming procedure, and then operate the actuator the required number of times, which is a source of error. Indeed, if the user does not fully prime the unit, there is a risk that the dose of product delivered during the next use will be insufficient. Conversely, performing a priming procedure by operating the actuator more times than required results in product waste.

[0007] It is these problems that the invention intends to remedy in particular, by proposing a dose counter which facilitates the priming procedure.

[0008] To this end, the invention relates to a dose counter for a device for dispensing multiple doses of a product, in particular a pharmaceutical product, the dose counter comprising a first rotating element having first graduations in the form of a first series of digits distributed angularly on the first rotating element, the first rotating element comprising a first drive member and a second drive member, the first drive member being configured to cooperate with an actuator of the dispensing device so that the first rotating element is driven in rotation at each ac- the actuator operation, and the second drive member having first reliefs, the dose counter comprising a second rotating element, which has second graduations in the form of a second series of numbers distributed angularly on the second rotating element, and which includes a third drive member, the dose counter comprising a transmission mechanism configured to cooperate jointly with the first reliefs of the second drive member once per revolution of the first rotating element and with the third drive member of the second rotating element, so as to rotate the second rotating element each time the first reliefs of the second drive member cooperate with the transmission mechanism, the first rotating element and the second rotating element cooperating to indicate together, by means of the first and second graduations,a numerical indication of the number of doses dispensed or remaining to be dispensed by the dispensing device, the first rotating element and the second rotating element being arranged so that the numerical indication is visible through a window in a dose counter housing. According to the invention, the second drive element comprises second reliefs, which are different from the first reliefs, the second reliefs being configured to cooperate with the transmission mechanism, once per revolution of the first rotating element, so as to rotate the second rotating element, and at least two adjacent digits of the second series of digits are identical, and the dose counter comprises a priming cover, which is arranged to obscure the numerical indication in the window until the second rotating element has been rotated at least once.

[0009] Thanks to the invention, the priming cover blocks the viewing window until the user has activated the actuator a predetermined number of times, in other words, until the priming procedure is complete. The dose counter thus provides a visual indication to the user, without requiring the user to read instructions or count the number of activations necessary for the priming procedure. The priming procedure is therefore simplified, reducing the risks of incomplete priming or product waste.

[0010] According to advantageous but not mandatory aspects of the invention, such a dose counter may incorporate one or more of the following features taken individually or in any technically permissible combination.

[0011] Advantageously, the first rotating element rotates through a first predefined angle each time the first drive member cooperates with the actuator. Preferably, each digit of the first series of digits is angularly distributed according to the first predefined angle. Thus, throughout the use of the dose counter, the risks of misalignment of the first series of digits with the window are limited.

[0012] Advantageously, the second rotating element rotates through a second predefined angle each time the transmission mechanism engages with the third drive element. Preferably, each digit in the second series of digits is angularly distributed according to the second predefined angle. Thus, throughout the use of the dose counter, the risks of misalignment of the second series of digits with the window are limited.

[0013] Advantageously, the second reliefs are angularly separated from the first reliefs by an angle equal to the product of the first predefined angle and a first predefined number, the first number being a non-zero positive integer. Preferably, the first predefined number is equal to the number of actuations required for the priming procedure. Such a construction allows the first rotation of the second rotating element to occur after a number of actuations corresponding to the number of actuations required for the priming procedure, and consequently, the priming cover no longer obscures the indication in the window once the number of actuations required for the priming procedure has been completed.

[0014] Advantageously, a rotation axis of the first rotating element and a rotation axis of the second rotating element are parallel to each other, while the third drive member comprises a series of circumferential teeth forming a gear, and the transmission mechanism includes a toothed planetary wheel that rotates about an axis parallel to the rotation axes of the first and second rotating elements and is configured to mesh with the gear. Such an arrangement allows for a simplified construction of the dose counter.

[0015] Advantageously, the first reliefs and the second reliefs each comprise two teeth configured to mesh with the satellite wheel.

[0016] Advantageously, the first series of digits represents a units digit of the ciphered indication, and the second series of digits represents a tens digit of the ciphered indication.

[0017] Advantageously, the first rotating element and the second rotating element are coaxial. Such an arrangement allows for a compact construction of the dose counter.

[0018] Advantageously, the direction of rotation of the first rotating element and the direction of rotation of the second rotating element are the same. Such an arrangement allows for a simplified construction of the dose counter.

[0019] Advantageously, the dose counter includes a terminal cover arranged to obscure the numerical display in the window when the second rotating element has been driven a second predefined number of times. The second predefined number is, for example, equal to the total number of doses of product intended for dispensing received in the container. Thus, the user will be informed of the absence of product to be dispensed. Preferably, the second predefined number corresponds to the quantity total number of doses of product present in the container, from which five is subtracted. Such a construction allows for consideration of variations in the container's filling.

[0020] Advantageously, the case comprises a lid and a base, the lid defining with the base an internal volume.

[0021] Advantageously, the first rotating element, the second rotating element and the transmission mechanism are carried by the housing, preferably by the base of the housing, and are housed in the internal volume of the housing.

[0022] Preferably, the lid includes the window. Preferably, the base includes a fastening element for the mouth of the container.

[0023] Advantageously, the first rotating element and the second rotating element have a general disc shape. Such a construction makes the dose meter more compact.

[0024] Advantageously, the second rotating element is transparent. Such a construction makes the dose counter more compact and improves the visibility of the numerical indication in the window.

[0025] Advantageously, the cover is supported by the second rotating element. Thus, the construction of the dose counter is simplified and avoids additional assembly and / or the addition of an extra mechanism.

[0026] Advantageously, the cover is supported by the second rotating element, while the second rotating element comprises an upper face and a lower face opposite the upper face, the lower face being in contact with the first rotating element, the second set of graduations being supported by the lower face. Such a construction makes the dose counter more compact.

[0027] Advantageously, the underside of the second rotating element comprises an annular recess having a bottom, the bottom being located at a distance from the first rotating element, the second set of graduations being carried by the bottom of the annular recess. Thus, the surface bearing the second set of graduations is not in direct contact with the first rotating element in order to prevent degradation of the second set of graduations during the operation of the dose counter.

[0028] Advantageously, the first drive member comprises a first set of teeth configured to cooperate with an actuator arm. Such an arrangement allows the actuator arm to drive one tooth of the first set of teeth with each actuation. Preferably, the first set of teeth is arranged in the form of a ratchet wheel.

[0029] Advantageously, the dose counter includes a non-return device configured to cooperate with the first drive member so as to allow rotation of the first rotating element only in a first direction of rotation. Such a construction makes it possible to limit rotations of the first element in an undesired direction. drive element which may cause the first rotating element to rotate independently of the actuator actuation, for example when the dispensing device equipped with the dose counter is transported, and which may return erroneous information on the number of doses actually dispensed or remaining to be dispensed.

[0030] Advantageously, the first and second ridges are positioned on the periphery of the first rotating element. Such a construction makes the dose counter simpler and more compact.

[0031] Advantageously, the third drive element comprises a series of teeth positioned on the periphery of the second rotating element. Preferably, the second rotating element is a toothed wheel. Such a construction makes the dose meter simpler and more compact.

[0032] Advantageously, a radial position of the first graduations on the first rotating element differs from a radial position of the second graduations on the second rotating element. Such an arrangement makes it easier to read the numerical indication.

[0033] Advantageously, the maximum radial distance of the first graduations on the first rotating element is less than the minimum radial distance of the second graduations on the second rotating element. Such an arrangement makes it easier to read the numerical indication.

[0034] Alternatively, the first rotating element and the second rotating element have a general hollow cylindrical shape. Thus, the dose meter is arranged in a compact manner.

[0035] Advantageously, the first drive member comprises a cam configured to cooperate with a pin of the actuator. Such a construction makes it possible to drive the first rotating element in rotation with each actuation of the actuator.

[0036] Advantageously, the first and second reliefs are positioned on an internal surface of the first rotating member.

[0037] Advantageously, the third drive member comprises a series of teeth positioned on an internal surface of the second rotary member.

[0038] Advantageously, the transmission mechanism is located inside the first rotating element and the second rotating element.

[0039] Advantageously, the second rotating element includes a transparent ring, which is integral with the second rotating element and which is configured to cover the first and second graduations, the priming cover being carried by the transparent ring.

[0040] Alternatively, the second rotating element includes an axial protrusion configured to cover a digit of the first series of digits, the cache priming being carried by the axial protrusion.

[0041] The invention also relates to a dispensing device, which includes: - a dispensing member, comprising an actuator actuable by a user so as to deliver a predetermined dose of a product contained in the container, - the dose counter as described above,

[0042] in which the numbered indication changes sequentially, each time the actuator is activated.

[0043] Advantageously, the actuator is free to move in translation about an actuation axis. Preferably, the actuator is fixed in rotation about the actuation axis.

[0044] Advantageously, the distribution device is a pump or a valve. A pump is understood to be a device capable of drawing in and discharging a fluid. A valve is understood to be a device capable of selectively retaining and releasing a pressurized fluid. The valve is said to be a "metering" valve if, during the action of releasing the fluid, the quantity of fluid released is independent of the duration of the valve's actuation. The valve is said to be a "continuous" valve if the quantity of fluid released depends on the duration of the valve's actuation.

[0045] Advantageously, the actuator is a mouthpiece, nasal or ear tip configured to deliver an aerosol, such as a spray, or a jet.

[0046] Alternatively, the actuator is a button.

[0047] The invention also relates to a dispensing assembly, which includes: - a container, which includes an opening and which contains a product, - the dispensing device as defined above,

[0048] in which the distribution device is fixed to the mouth of the container, so as to distribute a predetermined dose of the product contained in the container at each actuation of the actuator.

[0049] Advantageously, the actuator is formed by the container. Preferably, the actuator is a pressurized container.

[0050] The invention will be better understood, and other advantages thereof will become more apparent in the light of the following description of an embodiment of a dose counter, a dispensing device and a dispensing assembly, in accordance with its principle, given solely by way of example and with reference to the accompanying drawings, in which:

[0051] - [Fig. 1] Figures 1a) and 1b) respectively represent a perspective and a partially exploded perspective of a distribution assembly according to a first embodiment of the invention, the distribution assembly comprising a container, a cap and a distribution device, also according to the invention.

[0052] - [Fig.2] [Fig.2] is a perspective of the distribution device, some parts being hidden, the distribution device includes a dose counter according to the invention;

[0053] - [Fig.3] Figures 3a) and 3b) respectively represent an exploded perspective from two opposite viewpoints, of the dose counter of [Fig.2], the dose counter comprising two rotating elements;

[0054] - [Fig. 4] Figures 4a), 4b) and 4c) represent the two rotating elements of the [Fig.2], represented in various configurations illustrating states of the dose counter during a priming phase;

[0055] - [Fig. 5] Figures 5a), 5b) and 5c) represent the two rotating elements of the [Fig.2], represented in various configurations illustrating states of the dose counter during a phase of use;

[0056] - [Fig. 6] Figures 6a) and 6b) represent the two rotating elements of [Fig. 2], re presented in various configurations illustrating the states of the dose counter during the usage phase, and

[0057] - [Fig.7] Figures 7a) and 7b) represent the two rotating elements of [Fig.2], re presented in a final configuration of the dose counter.

[0058] - [Fig. 8] Figures 8a) and 8b) respectively represent a perspective and a partially exploded perspective of a distribution assembly according to a second embodiment of the invention, the distribution assembly comprising a container and a distribution device, also according to the invention.

[0059] - [Fig.9] Figures 9a) and 9b) respectively represent an exploded perspective from two opposite viewpoints, of the distribution device of the [Fig.8], some parts being hidden.

[0060] - [Fig. 10] [Fig. 10] represents a perspective view of a second element rotating according to an alternative to the second embodiment of the invention.

[0061] A dispensing assembly 10 according to a first embodiment of the invention is shown in [Fig. 1]. The dispensing assembly 10 comprises a container 12, here a bottle, which has a mouth 14. The container 12 is configured to be assembled to a dispensing device 20, the dispensing device 20 being attached to the mouth 14, for example by clipping, screwing, or crimping. In Figure 1a), the dispensing assembly 10 is shown in an assembled configuration, while in Figure 1b), the dispensing assembly 10 is shown in a partially exploded perspective, the dispensing device 20 being located at a distance from the container 12. The container 12 is configured to contain a product, in particular a liquid product, such as a solution or a suspension. The product contained in the container 12 is not shown. The product contained in the container 12 is advantageously a pharmaceutical product.

[0062] Products, particularly pharmaceuticals, that may be distributed by The distribution set includes, for example, formulations containing at least one active ingredient such as peptides, proteins, hormones, active ingredients of biological origin such as live inactivated viruses, virus proteins, viral vectors and viral subunits, nucleotide-based active ingredients such as DNA, RNA or oligonucleotides, active ingredients with a molecular weight up to 1500 Da, polysaccharides, vaccines, enzymes, antibodies, nutritional formulas or other active substances or mixtures thereof.

[0063] Products, particularly pharmaceuticals, that can be distributed by the dispensing device 20 include, for example, formulations containing as active ingredients tetrahydrocannabinol, cannabidiol, midazolam, benzodiazepines, morphine, naloxone, sufentanil, fentanyl, epinephrine, adrenaline, ketamines including esketamine, norketamine, cyanocobalamin, hydroxocobalamin, decongestants, vasoconstrictors, nalmefene, salbutamol, ipratropium, montelukast, anesthetic agents, antihistamines, antiemetics, desmopressin, oxytocin, GnRH analogues, nafarelin, busurelin, calcitonin, insulin, sumatriptan, the zolmitriptan, dihydroergotamine, metoclopramide, ondansetron, bevacizumab, zavegepant, nicotine, corticosteroids, steroids, sedatives, dexmedetomidine, ketorolac, lorazepam, lidocaine, azelastine, fluticasone,beclomethasone, butorphanol, ciclesonide, cocaine, cyanocobalamin, or xylocaine, diazepam, flunisolide, glucagon, metoclopramide, mometasone, olopatadine, oxymetazoline, tetracaine, testosterone, tetrahydrozoline, varenicline, budesonide, cromoglicic acid, triamcinolone, dexamethasone, lypressin, mupirocin, including their salts, hydrates, esters, isomers, or any combination thereof.

[0064] The dispensing device 20 includes a dose counter 100, which is configured to provide the user with information, in particular a numerical indication, on the number of doses of the product dispensed or remaining to be dispensed by the dispensing device 20. The dose counter 100 includes a housing 30, which is configured to be assembled to the container 12, more specifically to be attached to the opening 14 of the container 12. In this example, the housing 30 includes a base 32 and a lid 34, the base 32 and the lid 34 defining an internal volume. The housing 30, preferably the base 32, includes a fastening element, not shown, for attaching to the opening 14.

[0065] The dispensing device 20 comprises a dispensing member 22, which is partially received in the housing 30 and which is actuated by a user, so as to dispense a predetermined dose of the product contained in the container 12 to each time the user operates the distribution unit 22. In the illustrated example, the distribution unit 22 is a pump, which includes an actuator 40 and a body 42. The distribution device 20 is thus configured to distribute a predetermined dose of the product contained in the container 12 at each actuation of the actuator 40 by the user.

[0066] The actuator 40 is here a dispensing head, the body 42 being fixed to the housing 30, preferably by clipping, and extending from the housing so as to extend into the container 12 when the dispensing device 20 is fixed to the container 12. In the illustrated example, the body 42 includes a dip tube 43 through which the product to be dispensed is drawn into the dispensing member 22 from the container 12. The actuator 40 is movable relative to the rest of the pump, in particular relative to the body 42, so that a movement of the actuator 40 relative to the body 42 results in the dispensing of the product contained in the container 12. In the illustrated example, the body 42 is fixed to the housing 30, the actuator 40 extending from the housing 30 so that a movement of the actuator 40 relative to the housing 30 results in the dispensing of the product. More precisely, the actuator 40 is mobile in translation relative to the housing 30 along an actuation axis A40.The actuator 40 is here blocked from rotating around the actuation axis A40 relative to the housing 30.

[0067] When the user is not pressing the actuator 40, the actuator 40 is in a rest position relative to the body 42, and therefore relative to the housing 30. The distribution device 22 generally includes a return element, not visible in the figures, for example a spring, which tends to push the actuator 40 back towards its rest position. The elastic element is not shown. When the user actuates the actuator 40, generally by pressing it along the actuation axis A40, the user moves the actuator 40 from its rest position to an activated position. Then, the user releases the actuator, which returns to its rest position by elastic return of the return element. Thus, at each activation of the distribution member 22, the actuator 40 performs an activation movement relative to the body 42, the activation movement being a round trip between the rest position and the activated position along the actuation axis A40.The activation movement is represented here by a double arrow F40.

[0068] The actuator 40 here includes a distribution orifice 44, through which the dispensed product exits, in a general direction defining a distribution axis A44

[0069] The actuator 40 is here a push-button type nozzle, configured to deliver one or more doses of the product contained in the container 12 in the form of an aerosol, such as a spray or jet, for oral or cutaneous application. An aerosol is understood to be a suspension of droplets in the air. A spray is defined as an aerosol sprayed around the distribution axis A44 and having a substantially conical, with a relatively large semi-vertical angle, typically between 20 degrees and 60 degrees. The expression "between... and..." should be understood as including the limits of the interval thus defined.

[0070] A jet refers to an aerosol sprayed around the distribution axis A44 and having a substantially conical shape, with a relatively narrow apex half-angle, that is to say typically less than 20 degrees, or in a substantially linear direction.

[0071] In an alternative not shown, the actuator 40 is a nasal tip configured to deliver an aerosol, such as a spray, or a jet into a nostril.

[0072] Typically, the container 12 contains several doses of the product to be dispensed, depending on the size of the container, the type of product contained within it, the dispensing member 22, etc. For example, in the illustration shown, the container 12 is configured to hold 10 milliliters of product, while the dispensing member 22 is configured to dispense doses of 100 microliters. In other words, the container 12 is configured here to hold up to 100 doses of the product to be dispensed.

[0073] In the example of [Fig. 1], only a display of the dose counter 100 is visible, through a viewing window 302 provided on the housing 30. In this example, the window is provided on the cover 34. In [Fig. 2], the dispensing device 20 is partially shown, the cover 34 being omitted to reveal the rest of the dispensing device 20, in particular to reveal certain elements of the dose counter 100 and the dispensing member 22 housed in the internal volume of the housing 30. In [Fig. 3], only the actuator 40, the base 32, and certain elements of the dose counter 100 are shown.

[0074] For example, the dose counter 100 displays a numerical value to the user that decreases sequentially each time the user actuates the dispensing member 22, thus indicating to the user the number of doses remaining in the container 12. Alternatively, the dose counter 100 displays a numerical value that increases sequentially each time the user actuates the dispensing member 22, indicating to the user the number of doses dispensed. More generally, the numerical value displayed by the dose counter 100 changes sequentially each time the actuator 40 is actuated.

[0075] Advantageously, the distribution assembly 10 includes a cap 26. The cap 26 is removable and is reversibly attached to the housing 30, the cap 26 being configured to cover the actuator 40, so as to prevent unintentional actuation of the distribution member 22. In the illustrated example, the cap 26 is screwed to the housing 30, more precisely to the cover 34 of the housing 30. In variants not shown, the cap may be attached by clipping or tightening onto the housing 30.

[0076] The distribution device 20 is now detailed with reference to [Fig.3].

[0077] The dose counter 100 comprises a first rotating element 110, a second rotating element 120 and a transmission mechanism 130. In the illustrated example, the first rotating element 110, the second rotating element 120 and the transmission mechanism 130 are mounted on the base 32.

[0078] In the first embodiment, the first rotating element 110 has a general disk shape centered on a principal axis A1 10. The first rotating element 110 comprises a front face 11 IA, which is oriented towards the user when the user looks at the dose counter 100 through the viewing window 302, and a rear face 11 IB, oriented opposite to the front face 111 A. The front face 111 A of the first rotating element 110 is visible in Figure 3a), while the rear face 11 IB is visible in Figure 3b).

[0079] More generally, the front face 11 IA of the first rotating element 110 extends perpendicularly to a front direction of the dose counter 100. By extension, the main axis Al 10 of the first rotating element 110 is also considered as the main axis Al 10 for the other elements of the dose counter 100.

[0080] The base 32 includes a protrusion 141, which has a substantially planar shape and extends globally in a plane orthogonal to the main axis Al 10. The protrusion 141 includes a hub 142 defining an axis, which projects outward from the protrusion 141, the main axis Al 10 being aligned with the axis of the hub 142. The first rotating element 110 has a central orifice which cooperates with the hub 142, notably by complementary shapes, so that the first rotating element 110 is free to rotate relative to the protrusion 141 around the main axis Al 10.

[0081] The first rotating element 110 has first graduations 112. The first graduations 112 are here in the form of a first series of numbers which are distributed angularly, around the main axis Al 10, on the first rotating element 110, preferably on the front face 111A of the first rotating element 110. In particular, the first graduations 112 here consist of 10 numbers from "0" to "9", and are distributed regularly around the main axis Al 10, with an angular gap between two adjacent numbers equal to 36 degrees.

[0082] In the illustrated example, the first rotating element 110 is made of an opaque material, preferably a thermoplastic polymer, and obtained by an injection molding process. The first graduations 112 are, for example, recessed, i.e. engraved, on the front face 111A of the first rotating element 110 or printed on the front face 11 IA of the first rotating element 110. In the illustrated example, the first graduations 112 are colored so as to be contrasted by relative to the rest of the first rotating element 110.

[0083] The first rotating element 110 comprises a first drive member 116, which is configured to cooperate with the actuator 40 of the distribution member 22, such that the first rotating element 110 rotates by a first predefined angle RI 10, around the main axis Al 10, at each actuation of the actuator 40. In the illustrated example, the first drive member 116 comprises a first set of teeth, which are arranged here in the form of a ratchet wheel and are projecting from the rear face 11 IB of the first rotating element 110, the ratchet wheel being centered on the main axis Al 10 and being configured to cooperate with a free end of an arm 46 of the actuator 40. The arm 46 is in this example a flexible arm having a free end and an end attached to the rest of the actuator 40. In For example, arm 46 extends mainly along the actuation axis A40.It is understood that the first predefined angle RI 10 is primarily a function of the number of teeth on the ratchet wheel. In the illustrated example, the ratchet wheel has as many teeth as the first graduations 112 contain, i.e., 10 teeth. The first predefined angle RI 10 is therefore equal to 36 degrees. Each tooth of the first set of teeth, i.e., of the ratchet wheel, has a thrust surface configured to abut against the free end of the arm 46 so that when the actuator 40, and thus the arm 46, moves from the rest position to the activated position along the actuation axis A40, the arm 46 transmits a force via its free end to one of the teeth of the first set of teeth, thereby rotating the first rotating element 110 about the main axis Al 10.Each tooth in the first set of teeth also includes a ramp configured so that the free end of the arm 46 slides on the ramp, ensuring that when the actuator 40, and therefore the arm 46, moves from the activated position to the rest position, the first element 110 is not driven in rotation by the arm 46. During this step, the arm 46 deforms and the free end of the arm 46 is displaced in a direction perpendicular to the actuation axis A40. In an alternative (not shown) variant, the abutment surface and the ramp of the first set of teeth are reversed, so that the arm 46 drives the first rotating element in rotation when the actuator moves from the activated position to the rest position, and so that the free end of the arm 46 slides on the ramp when the actuator moves from the rest position to the activated position.

[0084] The base 32 advantageously comprises a groove 144 formed in the protrusion 141, the groove 144 here having a substantially straight shape and receiving the free end of the arm 46 of the actuator 40, so as to guide the free end of the arm 46 during the activation movements F40 of the actuator 40. The groove 144 has an enlarged intermediate portion 145, which allows a travel of the free end of the arm 46 in a direction transverse to the groove 144, in particular when the free end of the arm 46 slides on one of the ramps of the teeth of the first set of teeth of the first drive member 116.

[0085] The base 32 advantageously includes a non-return device 146, which is here carried by the protrusion 141 and which is here made by a lug located at the end of an elastic leg, the non-return device 146 being configured to cooperate with the first drive member 116 so as to allow the rotation of the first rotating element 110 in a first direction of rotation RI around the main axis Al 10, and to limit the rotation of the first rotating element 110 in a second direction of rotation opposite to the first direction of rotation.

[0086] Thus, each time the user operates the actuator 40 and moves the actuator 40 from the rest position to the activated position, the free end of the arm 46 of the actuator 40 travels in the groove 144 and cooperates with one of the teeth of the first drive member 116, driving the first rotating element 110 in the first direction of rotation RI, by an angle equal to the angular distance between two consecutive teeth of the first series of teeth formed by the ratchet wheel.

[0087] When the user releases the actuator 40 and allows it to return to its rest position, the anti-return device 146 prevents the first rotating element 110 from rotating in the second direction. During the return movement of the actuator 40, the arm 46 deforms elastically as the free end slides along the ramp and moves within the enlarged portion 145 of the groove 144.

[0088] The first rotating element 110 also includes a second drive member 118, which is configured to cooperate with the transmission mechanism 130. In the first embodiment, the transmission mechanism 130 includes a planetary wheel 132, which is toothed and which is rotatably mounted on the base 32, about an axis parallel to the main axis Al 10. More precisely, the planetary wheel 132 is rotatably mounted on the protrusion 141 of the base 32.

[0089] The second drive element 118 includes first reliefs 119A. Preferably, the first reliefs 119A are teeth; in particular, the first reliefs here consist of two teeth separated by a notch. The first reliefs 119A are formed on a periphery of the first rotating element 110 and are configured to mesh with the transmission mechanism 130, more precisely to mesh with the teeth of the planetary wheel 132. Each time the first rotating element 110 completes a full revolution, i.e., a 360-degree rotation, the first reliefs 119A of the second drive member 118 cooperate with the transmission mechanism 130, causing the transmission mechanism 130 to rotate through an angle equal to a predefined transmission angle R130.

[0090] The second drive element 118 also includes second reliefs 119B. The second reliefs 119B differ from the first reliefs 119A. The second reliefs 119B are formed on the periphery of the first rotating element 110 and are configured to mesh with the transmission mechanism 130, more precisely to mesh with the teeth of the planetary gear 132. The second reliefs 119B are teeth; in particular, the second reliefs 119B consist of two teeth separated by a notch. The second reliefs 119B preferably have a shape similar to, or even identical to, the first reliefs 119A. Each time the first rotating element 110 completes a full rotation, i.e., 360 degrees, the second set of reliefs 119B of the second drive member 118 cooperate with the transmission mechanism 130, causing the transmission mechanism 130 to rotate through an angle equal to the predefined transmission angle R130. In the illustrated example, the transmission angle R130 is equal to 90 degrees.

[0091] It is thus understood that during each complete rotation of the first rotating element 110, the second drive member 118 cooperates twice with the transmission mechanism 130, through the first reliefs 119A and through the second reliefs 119B.

[0092] The second reliefs 119B are angularly separated from the first reliefs 119A by an angular distance equal to the product of the first predefined angle RI 10 and a first predefined number NI, the first number NI being a positive and non-zero integer. In other words, the angular distance between the first reliefs 119A and the second reliefs 119B is directly a function of the first number NI. In the illustrated example, the first number NI is equal to 4.

[0093] Preferably, the second drive element 118 is configured so that the transmission mechanism 130 is driven in rotation only when passing the first 119A and second ridges 119B. The first rotating element 110 advantageously includes a locking ridge 119C, which blocks the transmission mechanism 130 when the first ridges 119A and second ridges 119B are not cooperating with the transmission mechanism 130. This reduces the risk of the dose counter reading changing unexpectedly, for example, if the distribution assembly 10 is subjected to vibrations while the actuator 40 is not activated. The dose counter 100 is thus secured and reliable.

[0094] In the illustrated example, the locking relief 119C is formed by a ring, which is located behind the first reliefs 119A and second reliefs 119B and which includes two notches 119D, which are angularly aligned with the notches of the first reliefs 119A and second reliefs 119B. Each of the first reliefs 119A and second reliefs 119B is thus associated with a corresponding notch 119D. When the first reliefs 119A or second reliefs 119B cooperate with the teeth of the satellite wheel 132, the teeth of the satellite wheel 132 are received in the notch 119D. corresponding to the level of the blocking relief 119C, the rotation of the satellite wheel 132 is not then prevented by the blocking relief 119C. When the first reliefs 119A or second reliefs 119B do not cooperate with the teeth of the satellite wheel 132, the rotation of the satellite wheel 132 is prevented by the ring forming the blocking relief 119C.

[0095] In the first embodiment, the second rotating element 120 has a general disc shape centered on the main axis Al 10. The second rotating element 120 has a central opening that cooperates with the hub 142, notably through complementary shapes, so that the second rotating element 120 is free to rotate relative to the protrusion 141 around the main axis Al 10. Thus, as in the illustrated example, the first rotating element 110 and the second rotating element 120 are advantageously stacked on the hub 142, in other words, are coaxial, thereby making the dose counter 100 more compact. According to a variant not shown, the hub 142 advantageously includes a retaining element, which is configured to hold together the stack of the first rotating element 110 and the second rotating element 120.

[0096] In another variant not shown, the second rotating element 120 is centered on an axis which is parallel to the main axis Al 10 and located at a distance from the main axis A110.

[0097] The second rotating element 120 is arranged opposite the front face 111A of the first rotating element 110. More specifically, the second rotating element 120 comprises an upper face 121A, which is oriented towards the user when the user looks at the dose counter 100 through the viewing window 302 when the dispensing device 20 is assembled, and a lower face 121B, oriented opposite to the upper face 121A. The upper face 121A of the second rotating element 120 is visible in Figure 3a), while the lower face 121B is visible in Figure 3b). Thus the lower face 121B of the second rotating element 120 is oriented towards the front face 11 IA of the first rotating element 110, i.e. towards the rear of the dose counter 100. In the illustrated example, the lower face 121B of the second rotating element 120 is in contact with the front face 111A of the first rotating element 110.

[0098] In the illustrated example, the second rotating element 120 is located, with respect to the user observing the window 302 when the dispensing device 20 is assembled, in front of the first rotating element 110. The second rotating element 120 is advantageously transparent, so that the user can see the first graduations 112 of the first rotating element 110 through the second rotating element 120. In this example, the second rotating element 120 is made of a transparent material, preferably a thermoplastic polymer material, for example, of family of polystyrenes or polycarbonates, by an injection molding process.

[0099] The second rotating element 120 has second graduations 122. The second graduations 122 are here in the form of a second series of numbers which are distributed angularly, around the main axis Al 10, on the second rotating element 120.

[0100] The first rotating element 110 and the second rotating element 120 cooperate to indicate together, by means of the first graduations 112 and the second graduations 122, a numerical indication of a number of doses distributed or remaining to be distributed by the distribution device 20, the first rotating element 110 and the second rotating element 120 being arranged so that the numerical indication is visible through the viewing window 302 of the housing 30. In the illustrated example, the numerical indication indicates the number of doses remaining to be distributed by the distribution device 20.

[0101] Preferably, a radial position of the first graduations 112 on the first rotating element 110 is different from a radial position of the second graduations 122 on the second rotating element 120, so that the first graduations 112 and second graduations 122 are not superimposed along the main axis Al 10, thus facilitating the reading of the numbered indication.

[0102] Preferably, the maximum radial distance of the first graduations 112 on the first rotating element 110 is less than the minimum radial distance of the second graduations 122 on the second rotating element 120.

[0103] In figures 4 to 7a), the first rotating element 110 and the second rotating element 120 are shown side by side, to facilitate reading the drawings, a contour of the viewing window 302 being drawn in superposition of each of the first rotating element 110 and second rotating element 120.

[0104] Thus, for example, with reference to Figure 5a), a graduation mark of the second set of graduations 122, here the digit "8", is visible on the left of the viewing window 302, while a graduation mark of the first set of graduations 112, here the digit "5", is visible on the right of the viewing window 302. It is understood that the first set of graduations 112 forms a units digit of the numerical reading of the dose counter 100, while the second set of graduations 122 forms a tens digit of the numerical reading. In other words, the first series of digits represents the units digit of the number of doses and the second series of digits represents the tens digit of the number of doses. In the example in Figure 5a), the numerical reading is therefore "85".

[0105] In Figure 7b), the first rotating element 110 and the second rotating element 120 are shown in an assembled state in the distribution device 20, i.e. that the second rotating element 120 is located in front of the first rotating element 120, with the upper face 121A oriented towards the user.

[0106] Preferably, the second graduations 122 are carried by the lower surface 121B, so that the second graduations 122 are substantially located in the same plane as the first graduations 112, which facilitates the visual accommodation of the user and thus the visibility of the numbered indication.

[0107] Preferably, the lower face 121B of the second rotating element 120 comprises an annular recess having a bottom 124, the second graduations 122 being supported by the bottom 124 of the annular recess as seen in Figure 3b). This arrangement limits direct friction of the second graduations on the front face 111A of the first rotating element 110 and thus prevents potential degradation of the second graduations during use of the dose counter 100.

[0108] The second rotating element 120 also includes a third drive member 128. The transmission mechanism 130, here the satellite wheel 132, is configured to cooperate with the third drive member 128 so as to drive the second rotating element 120 in rotation by a second predefined angle R120 each time the transmission mechanism 130 is driven by the second drive member 118. More precisely, at each rotation of the satellite wheel 132, induced by the first reliefs 119A or the second reliefs 119B of the second drive member 118, the second rotating element 120 is driven in rotation by the second predefined angle R120.

[0109] The third drive member 128 is advantageously configured so that the transmission mechanism 130 is in continuous mesh with the second rotating element 120. In other words, when the transmission mechanism 130 is stationary relative to the protrusion 141, then the second rotating element 120 is blocked from rotating because the transmission mechanism 130 is also blocked from rotating, while when the transmission mechanism 130 pivots relative to the protrusion 141, for example when the transmission mechanism 130 is driven in rotation by the first reliefs 119A or the second reliefs 119B of the first rotating element 110, then the second rotating element 120 is driven in rotation via the transmission mechanism 130, here the satellite wheel 132.

[0110] In the illustrated example, the third drive member 128 is formed by a series of circumferential teeth arranged around the periphery of the second rotating element 120. In other words, the second rotating element 120 here forms a gear, the transmission mechanism 130, here the planetary gear 132, being configured to drive the gear formed by the second rotating element 120. In the first embodiment of the invention, the ends of the teeth of the third drive member 128 are oriented opposite to the main axis Al 10. Advantage Specifically, the diameters of the pitch circles of the gear forming the second rotating element 120 and of the gear forming the satellite wheel 132 are arranged so that the second predefined angle R120 is equal to half of the first predefined angle RI10, or in the illustrated example, so that the second predefined angle R120 is equal to 18 degrees. In other words, in the illustrated example, a reduction ratio between the satellite wheel 132 and the second rotating element 120 is equal to 18 degrees divided by 90 degrees, or 0.2.

[0111] The teeth of the third drive member 128 advantageously have a shape similar, preferably identical, to the teeth of the second drive members 118 of the first rotating element 110.

[0112] As mentioned previously, during each complete rotation of the first rotating element 110, the second drive member 118 engages the transmission mechanism 130 twice, via the first reliefs 119A and via the second reliefs 119B. However, the tens digit displayed on the numbered indicator should only change once per rotation of the first rotating element. Thus, some digits on the second scale 122 are inscribed twice, that is, duplicated. In other words, at least two adjacent digits in the second series of digits on the second scale 122 are identical.

[0113] Advantageously, the third drive member 128 also includes a stop 129, which is here formed by filling a gap between two consecutive teeth of the third drive member. The stop 129 is arranged so as to block the transmission mechanism 130 when the dose counter 100, and by extension the dispensing device 20 and the dispensing assembly 10, are in a terminal configuration, in which all the planned doses have already been dispensed.

[0114] Before the first use of the dispensing assembly 10, the user receives the dispensing assembly 10 pre-assembled. The dispensing unit 20 is empty, in its initial configuration. The dose counter 100 is also in its initial configuration.

[0115] The user must then follow a priming procedure for the dispensing member 22, which consists of actuating the actuator 40 a predefined number of times, in other words, a number of times equal to a second predefined number N2, until the dispensing member 22 is in a primed configuration, in which each subsequent actuation of the actuator 40 will deliver the expected dose of the product, assuming there is still product remaining in the container 12. The second number N2 depends in particular on the type and size of the dispensing member 22. The second number N2 is a non-zero positive integer. In the illustrated example, the second number N2 is between 1 and 10, preferably between 4 and 6.

[0116] The second rotating element 120 includes a priming cover 150. The cover The priming cover 150 is an opaque surface formed on the second rotating element 120. The priming cover 150 is trapezoidal in shape. The priming cover 150 is arranged to conceal the numerical indication in window 302 when the dispensing device 20 is in its initial configuration, and until the user completes the priming procedure, i.e., before the second predefined actuation number N2 of the actuator 40.

[0117] In other words, the boot cover 150 is arranged so as to conceal the numbered indication in the window 302 as long as the first rotating element 110 rotates through the first predefined angle RI 10 a predefined number of times. In the illustrated example, the predefined number of times is equal to the first number NI.

[0118] Advantageously, the boot cover 150 has a solid color, for example green or yellow, which allows the user to understand that they must perform the boot procedure. Optionally, the boot cover 150 has a pattern.

[0119] The second number N2 is less than or equal to the first number NI; in other words, the number of actuations required for the priming procedure is less than or equal to the first number NI. Preferably, the second number N2 is equal to the first number NI.

[0120] The priming shield 150 is preferably mounted on the upper face 121A of the second rotating element 120, so as to be as close as possible to the viewing window 302 when the dispensing device is assembled, thus obscuring the numbered indication. In an alternative (not shown) variant, the priming shield 150 is mounted on the lower face 121B of the second rotating element 120. The priming shield is, for example, produced by screen printing or pad printing. Alternatively or in addition, the priming shield is produced by a more granular surface finish, locally reducing the transparency of the second rotating element 120.

[0121] The second rotating element 120 advantageously includes an end cover 152. The end cover 152 is an opaque surface formed on the second rotating element 120. The end cover 152 is arranged to partially obstruct the viewing window 302 when between 1 and 9 usable doses remain in the dispensing assembly 10, with only the first few graduations 112 remaining visible. The end cover 152 is also arranged to completely, or almost completely, obstruct the viewing window 302, to indicate to the user that the number of dispensed doses is close to the capacity of the container 12, or that the number of doses remaining to be dispensed is close to 0.

[0122] The terminal cover 152 is here an opaque surface, which is provided on the second rotating element 120, preferably on the upper face 121A of the second rotating element 120. Advantageously, the terminal cover 152 has a solid color, for example red, which allows the user to understand that the entire assembly of discs Contribution 10 is no longer usable. Advantageously, terminal cache 152 is arranged on the same surface as boot cache 150.

[0123] The operation of the dose counter 100 is now described, with reference to Figures 4 to 7.

[0124] In Figure 4a), the dose counter 100 is in its initial configuration. Preferably, the initial configuration corresponds to the configuration of the dose counter 100 once assembled. The priming cover 150 covers most of the viewing window 302 and therefore obscures the numerical display. The digit "9" of the first graduations 112 of the first rotating element 110 is aligned with the viewing window 302, but this digit "9" is not visible because it is obscured by the priming cover 150. The locking relief 119C of the first rotating element 110 blocks the transmission mechanism 130, and thus blocks the second rotating element 120.

[0125] Between the initial configuration of Figure 4a) and the configuration of Figure 4b), the user actuates the actuator 40 once, resulting in the rotation of the first rotating element 110 through an angle equal to one times the first predefined angle RHO, here 36 degrees. However, neither of the first ridges 119A nor the second ridges 119B has yet cooperated with the transmission mechanism 130, which therefore remains stationary. Conversely, the blocking ridge 119C of the first rotating element 110 still blocks the transmission mechanism 130, and thus blocks the second rotating element 120. The priming cover 150 still covers most of the viewing window 302.

[0126] In the illustrated example, the dose counter 100 is a retrograde counter, which indicates, once the priming procedure is completed and the numbered indication is visible, the number of doses remaining to be dispensed into the container 12. The number of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302, previously equal to "9", is now equal to "8", but this number "8" is not visible, because it is still hidden by the priming cover 150.

[0127] Between the configuration of Figure 4b) and the configuration of Figure 4c), the user actuates the actuator 40 twice, which results in the rotation of the first rotating element 110 by an angle equal to twice the first predefined angle RI 10, the reference RI 10 being represented twice.

[0128] As before, during the two activations by the user, neither of the first ridges 119A nor the second ridges 119B cooperated with the transmission mechanism 130, which remained stationary. Conversely, the blocking ridge 119C of the first rotating element 110 always blocks the transmission mechanism 130, and thus blocks the second rotating element 120. The priming cover 150 still covers most of the viewing window 302. The number of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302 is equal to "8". previously, is now equal to "6", but this number "6" is still not visible, because it is hidden by the boot cache 150.

[0129] Between the configuration of Figure 4c) and the configuration of Figure 5a), the user actuates the actuator 40 once, resulting in the rotation of the first rotating element 110 through an angle equal to the first predefined angle RI 10. The number of the first graduations 112 of the first rotating element 110 aligned with the viewing window 132, previously equal to "6", is now equal to "5". During this activation by the user, the second reliefs 119B of the second drive member 118 cooperate with the transmission mechanism 130, which cooperates with the third drive member 128 of the second rotating element 120, so as to rotate the second rotating element 120 through an angle equal to the second predefined angle R120, here 18 degrees. After this rotation, the boot cache 150 is no longer aligned with window 302.Whereas previously the 150 priming cover was aligned with the 302 viewing window, now the number "8" of the second 122 graduations of the second rotary 120, aligned with the 302 viewing window, is visible.

[0130] In other words, the viewing window 302 is no longer hidden by the priming cache 150, and the user can see on the viewing window 302 the numbered indication, here the number "85", which indicates to the user both that the priming procedure is complete, and that there are 85 doses remaining to be distributed by the distribution set 10.

[0131] In the illustrated example, between the initial configuration in Figure 4a) and the configuration in Figure 5a), the user has operated the actuator 40 a number of times equal to the second number N2, which here is equal to 4.

[0132] The number of actuations required for priming is less than or equal to the first number NI. As a corollary, it is understood that the number of actuations required for priming is adjustable, on the dose counter 100, by changing the first number NI, in other words by changing the angular gap between the first reliefs 119A and the second reliefs 119B.

[0133] Between the configuration shown in Figure 5a) and the configuration shown in Figure 5b), the user actuates the actuator 40 five times. The digit of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302, equal to "5" in Figure 5a), is equal to "0" in Figure 5b). Since neither of the first ridges 119A nor the second ridges 119B cooperated with the transmission mechanism 130, the transmission mechanism 130 and the second rotating element 120 remained stationary. The digit of the second graduations 122 aligned with the viewing window 302 is therefore always "8", and the numerical indication visible in the viewing window 302 is therefore "80".

[0134] Between the configuration of Figure 5b) and the configuration of Figure 5c), the user actuates the actuator 40 once. The digit of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302, equal to "0" in Figure 5b), is equal to "9" in Figure 5c). During this activation by the user, the first reliefs 119A of the second drive member 118 cooperate with the transmission mechanism 130, which cooperates with the third drive member 128 of the second rotating element 120, so as to rotate the second rotating element 120 through an angle equal to the second predefined angle R120. As a result, the digit of the second graduations 122 of the second rotating element 120 aligned with the viewing window 302 is the digit "7". In other words, the numerical value visible on the viewing window 302 is "79".

[0135] Between the configuration shown in Figure 5c) and the configuration shown in Figure 6a), the user actuates the actuator 40 three times. The digit of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302, equal to "9" in Figure 5c), is equal to "6" in Figure 6a). Since neither of the first reliefs 119A nor the second reliefs 119B cooperated with the transmission mechanism 130, the transmission mechanism 130 and the second rotating element 120 remained stationary. As illustrated in Figure 6a), the digit of the second graduations 122 aligned with the viewing window 302 is always "7", the numerical indication visible on the viewing window 302 being "76".

[0136] Between the configuration of Figure 6a) and the configuration of Figure 6b), the user actuates the actuator 40 once. The number of the first graduations 112 of the first rotating element 110 aligned with the viewing window 302, equal to "6" in Figure 6a), is equal to "5" in Figure 6b).

[0137] During this activation by the user, the second reliefs 119B of the second drive member 118 cooperate with the transmission mechanism 130, which cooperates with the third drive member 128 of the second rotating element 120, so as to drive the second rotating element 120 in rotation by an angle equal to the second predefined angle R120.

[0138] However, the number "7" of the second graduations 122 of the second rotary 120 is duplicated. In figure 6a), the first of the two "7"s is aligned with the viewing window 302, while in figure 6b), the second of the two "7"s is aligned with the window 302. As a result, the numbered indication visible in figure 6b) is "75".

[0139] As the user continues to operate the actuator 40, the numbered indication visible through the viewing window 302 continues to evolve sequentially.

[0140] Each time the user has actuated the actuator 40 ten times, the first rotating element 110 completes a full rotation, and each of the first reliefs 119A and second reliefs 119B cooperates with the transmission mechanism, driving each time the The second rotating element 120 rotates at an angle equal to the second predefined angle R120. In other words, each time the first rotating element 110 completes a full rotation, the second rotating element 120 is driven twice by an angle equal to the second predefined angle R120. In the illustrated example, all the digits in the second series of digits on the second graduations 122, between "1" and "7", are advantageously duplicated.

[0141] More generally, all the digits of the second series of digits of the second graduations 122, lower than the digit of the second series of digits when the priming procedure is completed, here the "8", are advantageously duplicated.

[0142] In Figures 7a) and 7b), the dose counter 100 is in its terminal configuration. The terminal cover 152 blocks the viewing window 302, so no numerical indication is visible. In addition, the stop 129 blocks the transmission mechanism 130. This prevents any further actuation of the actuator 40 by the user according to the movement F40, as the first lugs 119A are prevented from cooperating with the transmission mechanism 130. The first rotating element 110 is thus blocked, which in turn blocks the free end of the arm 46.

[0143] In an unrepresented variant, the arm cooperating with the first drive member is carried by a transmission element, different from the actuator.

[0144] A distribution assembly 11 according to a second embodiment of the invention is shown in Figures 8 and 9. In the second embodiment, the elements analogous to those of the first embodiment bear the same reference numerals and function in the same way. The following primarily describes the differences between the first and second embodiments.

[0145] In this embodiment, the dispensing device 20 comprises an actuator 400, a dose counter 200 with a first rotating element 210 and a second rotating element 220 generally shaped like a hollow cylinder. The remainder of the dose counter mechanism is advantageously housed inside the first rotating element 210 and the second rotating element 220. Thus, the dose counter 200 is particularly compact.

[0146] The first rotating element 210 and the second rotating element 220 are coaxial along a main axis A210 and mounted around a hub 242 carried by the base 32. In this embodiment, the main axis A210 is parallel, preferably coinciding with the actuation axis A40.

[0147] The first drive member 116, the second drive member 118 carried by the first rotating element 210 are carried by an inner surface of the hollow cylinder formed by the first rotating element 210.

[0148] In this embodiment, the transmission mechanism 130 is formed by a toothed wheel 230 located inside the first rotating element 210 and the second rotating element 220.

[0149] The third drive member 128 is carried by an inner surface of the hollow cylinder formed by the second rotating element 220. In other words, in the second embodiment of the invention, the third drive member 128 comprises a series of circumferential teeth, which form a toothed wheel, the ends of the teeth being oriented towards the main axis Al 10.

[0150] The first drive member 116 here comprises a cam with two tracks, while the actuator 400 here comprises pins 402. The cam is configured to cooperate with each pin 402 of the actuator 400 so that when the pins 402 slide in the tracks of the cam, the first rotating element 210 is driven into rotation by the first predefined angle RI 10. The number of pins 402 is not limited. In an alternative configuration not shown, the actuator 400 comprises only one pin 402; however, the configuration with multiple pins is preferred because it reduces the risk of jamming of the dose counter 200. The pins 402 are preferably evenly distributed around the actuation axis A40.

[0151] In an unrepresented variant, the pin(s) 402 cooperating with the first drive member 116 are carried by a transmission element different from the actuator 400.

[0152] In this embodiment of the invention, the dose counter 200 comprises a ring 249, which is a separate part from the second rotating element 220. In the illustrated example, the ring 249 is advantageously made of a transparent material and includes an opaque portion, forming a priming shield 250. The opaque portion is, for example, manufactured by applying an opaque coating to the transparent ring 249, by screen printing or pad printing. The ring 249 is attached to the second rotating element 220, here by clipping, so as to form the priming shield 250.

[0153] In the alternative to the second embodiment illustrated in [Fig. 10], a priming cover 350 is formed by an axial protrusion 352 on a second rotating element 320 and configured to mask the first graduations 112 of the first rotating element 210. In this example, a surface outside the protrusion 352 is colored. In this alternative, the dose counter does not include a ring.

[0154] In the illustrated embodiments, the dose counter 100 or 200 is decreasing, that is to say, once the priming procedure has been carried out, the dose counter indicates to the user the number of doses remaining to be dispensed by the dispensing assembly 10 or 11.

[0155] The principles of the invention can of course be implemented for an increasing dose counter, in which the dose counter indicates zero once the priming procedure has been carried out, the dose counter indicating to the user the number of doses delivered after the priming procedure.

[0156] The embodiments and variants mentioned above can be combined with each other to generate new embodiments of the invention.

Claims

Demands

1. A dose counter (100; 200) for a dispensing device (20) for multiple doses of a product, in particular a pharmaceutical product, the dose counter comprising a first rotating element (110; 210) having first graduations (112) in the form of a first series of digits distributed angularly on the first rotating element (110; 210), the first rotating element (110; 210) comprising a first drive member (116) and a second drive member (118), the first drive member (116) being configured to cooperate with an actuator (40; 400) of the dispensing device (20) such that the first rotating element (110; 210) is driven in rotation at each actuation of the actuator (40; 400), and the second drive member (118) having first reliefs (119A), the dose counter (100; 200) comprising a second rotating element (120; 220;320), which has second graduations (122) in the form of a second series of numbers distributed angularly on the second rotating element (120; 220; 320), and which includes a third drive member (128), the dose counter comprising a transmission mechanism (130) configured to cooperate jointly with the first reliefs (119A) of the second drive member (118) once per revolution of the first rotating element (110; 210) and with the third drive member (128) of the second rotating element (120; 220; 320), so as to rotate the second rotating element (120; 220; 320) each time the first reliefs (119A) of the second drive member (118) cooperate with the transmission mechanism (130), the first rotating element (110; 210) and the second rotating element (120; 220;320) cooperating to indicate together, by means of the first and second graduations (112, 122), a numerical indication of a number of doses distributed or remaining to be distributed by the distribution device (20), the first rotating element (110; 210) and the second rotating element (120; 220; 320) being arranged so that the numerical indication is visible through a window (302) of a housing (30) of the dose counter (100, 200),; the dose counter (100; 200) being characterized in that the second drive member (118) comprises second reliefs (119B), which are different from the first reliefs (119A), the second reliefs (119B) being configured to cooperate with the transmission mechanism (130), once per revolution of the first rotating element (110; 210), so as to drive the second rotating element (120; 220) in rotation, in that at least two adjacent digits of the second series of digits are identical, and in that the dose counter (100; 200) comprises a priming cover (150; 250, 350), which is arranged so as to mask the numbered indication in the window (302) until the second rotating element (120; 220; 320) has been driven at least once in rotation.

2. Dose counter (100; 200) according to claim 1, wherein a rotation axis (Al 10; A210) of the first rotating element (110, 210) and a rotation axis of the second rotating element (120, 220; 320) are parallel to each other, wherein the third drive member (128) comprises a series of circumferential teeth forming a gear, and wherein the transmission mechanism (130) comprises a planetary gear (132; 230) toothed and rotating about an axis parallel to the rotation axis of the first and second rotating elements and configured to mesh with the gear.

3. Dose counter (100; 200) according to claim 2, wherein the first reliefs (119A) and the second reliefs (119B) each comprise two teeth configured to mesh with the satellite wheel (132; 230).

4. Dose counter (100; 200) according to any one of claims 1 to 3, wherein the first set of digits in the first graduations (112) represents a units digit of the numbered indication, and the second set of digits in the second graduations (122) represents a tens digit of the numbered indication.

5. Dose counter (100; 200) according to any one of claims 1 to 4, wherein the first rotating element (110; 210) and the second rotating element (120; 220) are coaxial.

6. Dose counter (100) according to any one of claims 1 to 5, wherein the first rotating element (110) and the second rotating element (120) have a general disc shape.

7. Dose counter (100) according to claim 6, wherein the second rotating element (120) is transparent.

8. Dose counter (100) according to claim 7, wherein the cover (150, 350) is carried by the second rotating element (120; 320), the second rotating element (120) comprising an upper face (121 A) and a lower face (121 B) opposite the upper face, the lower face being in contact with the first rotating element (110), the second graduations (122) being carried by the lower face (121 B).

9. Dose counter (100) according to claim 8, wherein the lower face (121B) of the second rotating element (120) comprises an annular recess having a bottom, the bottom being located at a distance from the first rotating element, the second graduations (122) being carried by the bottom of the annular recess.

10. Dose counter (100) according to any one of claims 6 to 9 in which the first drive member (116) comprises a first set of teeth configured to cooperate with an arm (46) of the actuator (40).

11. Dose counter (200) according to any one of claims 1 to 5, wherein the first rotating element (210) and the second rotating element (220; 320) have a general hollow cylinder shape.

12. Dose counter (200) according to claim 11, wherein the first drive member (116) comprises a cam configured to cooperate with a pin (402) of the actuator (400).

13. Dose counter (200) according to any one of claims 11 or 12, wherein the second rotating element (210) comprises a transparent ring (249), which is integral with the second rotating element (210) and which is configured to cover the first and second graduations (112,122), the priming cover (250) being carried by the transparent ring.

14. Dose counter (200) according to any one of claims 11 or 12, wherein the cover (350) is carried by the second rotating element (320).

15. Dispensing device (20), comprising: • a dispensing member (22), comprising an actuator (40; 400) actuable by a user so as to deliver a predetermined dose of a product contained in the container (12), • the dose counter (100; 200) according to any one of claims 1 to 14, wherein: • the numerical indication changes sequentially, each time the actuator (40; 400) is activated.

16. Dispensing assembly (10; 11), comprising: • a container (12), which includes a mouth and which contains a product, • the dispensing device (20) according to claim 15, wherein the dispensing device (20) is fixed to the mouth (14) of the container (12), so as to dispense a predetermined dose of the product contained in the container (12) at each actuation of the actuator (40; 400).

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