Fluid product dispenser comprising actuation member for storage subassembly

Abstract

The invention relates to a fluid product dispenser (10) comprising:-a container for a fluid product,-a dispensing pump (46) attached to a dispensing head (12) by means of an upper portion of the dispensing pump (46),-an actuating member (44) attached to the container and movable from a rest position to a product dispensing position, and-a cam ring (36), the cam ring (36) is rotatable relative to the actuating member (44), the actuating member (44) comprising a first cam means (50) cooperating with a second cam means (66) of the cam ring (36) such that an axial displacement is obtained by converting a rotational movement of the actuating member (44) relative to the cam ring (36), the axial displacement enabling actuation of the dispensing pump (46), the cam ring (36) further comprises at least one first locking means cooperating with at least one second locking means of the dispenser (10) to prevent rotational movement of the actuating member (44) relative to the cam ring (36) when the actuating member (44) is in the low rest position.

Description

Technical Field

[0001] The invention relates to a dispenser for fluid products comprising an actuation member for a storage subassembly.

[0002] Fluid products are of the emulsion, gel, perfume or cream type, which are used, for example, for cosmetic purposes or for medicinal treatments. Background Art

[0003] Some fluid product dispensers have a pump that is configured to draw a fluid product contained in a container of the dispenser to dispense the fluid product. The product can then be extracted from the dispenser to enable application of the product.

[0004] The pump is usually manually actuated by a button, and the user applies pressure to the button to trigger the operation of the pump. Each time the button is pressed, a certain dose of the fluid product will flow out of the dispensing orifice.

[0005] Therefore, the button can be moved between the high position and the low position, and the button is returned to the high position of the button by the return force. The actuation of the button enables the pump to be actuated so that the product of the container of the dispenser flows to the dispensing orifice and dispenses the product.

[0006] However, the dose is predefined and is the same and the user cannot change the dose unless more or less pressure is applied to the button. In other words, the dose dispensed is defined by manually adjusting the height of the button travel and the pressure applied by the user.

[0007] Furthermore, in some cases, the pressure applied to the button may require considerable force, particularly when the fluid product has a high viscosity.

[0008] Furthermore, in some mechanisms, in order to prevent the pump from remaining under stress in the rest position, the mechanism takes into account the tolerances of the various components and this results in play between the various components of the dispenser, in particular in the rest position.

[0009] Among other things, the gap may cause a choke point in the dispensing pump.

[0010] The gap may also lead to a flutter effect which is detrimental to the user.

[0011] Therefore, there is a need for a solution that addresses at least some of the mentioned disadvantages while retaining a dispenser with an efficiency similar to that of known dispensers. Summary of the invention

[0012] Thus, according to a first aspect, the invention relates to a fluid dispenser comprising:

[0013] - containers for fluid products,

[0014] - a dispensing pump, which is attached to the dispensing head via an upper part of the pump,

[0015] an actuation member attached to said container and displaceable from a rest position towards a product dispensing position according to an axial displacement, and

[0016] a cam ring which is capable of rotational movement relative to the actuating member,

[0017] the actuating member comprises a first cam device cooperating with a second cam device of the cam ring so that, by converting a rotational movement of the actuating member relative to the cam ring, an axial displacement is obtained which enables the dispensing pump to be actuated,

[0018] The cam ring further comprises at least one first locking device cooperating with at least one second locking device of the dispenser to prevent a rotational movement of the actuating member relative to the cam ring when the actuating member is in the rest position.

[0019] The locking device makes it possible to limit the flutter effect, ie the floating unbalance effect, of the various movable parts of the dispenser, in particular when the actuating part is in the rest position. The locking device makes it possible to limit any rotational play when the dispensing pump is in the rest position. The user feels more comfortable.

[0020] Furthermore, the locking device enables a sensitive "click" to be produced at the beginning and end of the stroke. Thus, the user knows when he has started to activate the dispensing pump and when the dose has been completely dispensed. The user is naturally aware that the system is in the rest position.

[0021] Various embodiments according to the present invention which can be adopted together or individually:

[0022] - the fluid product is a cosmetic or a medicine,

[0023] - the axial displacement is from the rest position towards the fluid dispensing position,

[0024] - the rest position is the lower position of the actuating member,

[0025] - the product dispensing position is the high position of the actuating member,

[0026] - the actuating member is attached directly to the container,

[0027] - the actuating member is connected to the container in a sealed manner,

[0028] - the dispenser comprises a rotatable shrink ring rotatably connected to the actuating member,

[0029] - at least one second locking device located on the rotating shrink ring,

[0030] - the dispensing pump can be actuated from the lower part of the pump,

[0031] the dispensing pump comprises a pump body and a rod which are axially movable relative to one another, the rod being connected to the pump body at a lower end of the dispensing pump and being attached to a dispensing head at an upper end of the dispensing pump,

[0032] -The rod has full or partial travel,

[0033] - the pump body is wedged into the abutment,

[0034] - the rod is wedged into the abutment,

[0035] - the rod is held in place by friction,

[0036] - a dispensing head comprising a dispensing orifice,

[0037] - the upper end of the rod is attached to the dispensing head at the dispensing orifice,

[0038] - the rod is connected to the pump body so that the pump body and the rod are able to move axially relative to each other,

[0039] - the cam ring is mounted on the housing of the dispenser,

[0040] - before or when using the dispenser for the first time, the dispenser pump is wedged upwards,

[0041] - the first cam means is a cam follower which is configured to follow the trajectory of the second cam means of the cam ring,

[0042] - the cam follower is a radial projection which is configured to follow the trajectory of the second cam means of the cam ring,

[0043] - the first cam means is a radial projection configured to follow the trajectory of the dispenser,

[0044] - the actuating member comprises three first cam means,

[0045] - the actuating member comprises three first cam means,

[0046] - the actuating member comprises three cam followers,

[0047] - the actuating member comprises three radial projections,

[0048] - the cam ring comprises a cam path having at least two valleys and two vertices,

[0049] -The cam track is wavy,

[0050] - the cam track has three to eight recesses,

[0051] - the cam path has three to eight vertices,

[0052] - the cam path has the same number of valleys and peaks,

[0053] - the cam path has three valleys and three vertices,

[0054] - the container is a flexible bag,

[0055] - the fluid product dispenser comprises a storage subassembly,

[0056] - a storage subassembly comprising a container for the fluid product, an actuation member and a dispensing pump,

[0057] - the receiving portion is configured to receive the storage subassembly,

[0058] - at least one first locking means is a resilient protrusion protruding from the upper surface of the cam ring,

[0059] - at least one first locking means is an elastic protrusion protruding radially from the surface of the cam ring,

[0060] - at least one first locking device has axial elasticity,

[0061] - the protrusion includes an access ramp on either side,

[0062] - the protrusion has chamfers at least on two sides,

[0063] - at least one second locking means is a notch located on the lower surface of the rotating shrink ring,

[0064] - the cam ring includes a single locking device,

[0065] - the rotating shrink ring includes three second locking devices,

[0066] - at least one first locking device and at least one second locking device are made of different materials,

[0067] - the material of at least one first locking device is more resistant to ageing than the material of at least one second locking device,

[0068] -Aging is aging under stress.

[0069] According to a second aspect, the invention relates to an actuation member configured to be installed in a dispenser of a fluid product and to actuate a dispensing pump, the actuation member comprising:

[0070] - at least one connecting device for attachment to a container of the dispenser,

[0071] - a cavity configured to receive a dispensing pump,

[0072] - a first cam device,

[0073] The actuation member, when mounted in the dispenser, is displaceable according to an axial displacement obtained by converting the rotational movement of the actuation member by means of first cam means, the axial displacement making it possible to actuate the dispenser pump to dispense the fluid product.

[0074] Unlike conventional systems that actuate a dispensing pump by pressing a button, the dispensing pump is actuated here by a simple rotational movement of at least one component relative to another component. This enables greater force to be provided to the pump, which is particularly useful for viscous fluid products.

[0075] In addition, each rotational movement enables a precise dose of fluid to be dispensed. This makes it easier for the user to feel when the entire dose of fluid has been dispensed.

[0076] According to a third aspect, the invention relates to a fluid product dispenser comprising:

[0077] - a dispenser head for dispensing a fluid product,

[0078] - containers for fluid products,

[0079] - a dispensing pump, which is attached to the dispensing head via an upper part of the pump,

[0080] an actuation member attached to the container and capable of being displaced according to an axial displacement, and

[0081] a cam ring which is capable of rotational movement relative to the actuating member,

[0082] The actuating member comprises first cam means cooperating with second cam means of the cam ring so that, by converting a rotational movement of the actuating member relative to the cam ring, an axial displacement is obtained which enables actuation of the dispensing pump.

[0083] The special mounting of the dispensing pump from above makes it possible to ensure that the dispensing pump can move vertically without choking points.

[0084] This means that if any play occurs during the rotational and axial movement, there is an angular offset between the cam follower and the cam path and a spacing of the cam follower relative to the cam path in the recess when the dispensing rod has reached its abutment.

[0085] This means that there are no choke points in the high position (ie in the maximum inserted position of the dispensing rod) or in the low position (the spacing of the cam follower and the cam track when the dispensing rod is in its minimum inserted position). BRIEF DESCRIPTION OF THE DRAWINGS

[0086] The invention will be better understood and other characteristics and advantages of the invention will become apparent during reading the following detailed description of at least two examples of its embodiments given by way of purely illustrative and non-limiting examples, with reference to the attached schematic drawings, in which:

[0087] - Figure 1 is an exploded perspective view of a first example of a fluid product dispenser according to the present invention;

[0088] - Figure 2 yes Figure 1 A longitudinal sectional view of the distributor when it is in a static position;

[0089] - Figure 3 yes Figure 1 A longitudinal sectional view of the dispenser when it is in a dispensing position;

[0090] - Figure 4 yes Figure 1 An exploded perspective view of a dispensing head of a dispenser;

[0091] - Figure 5 yes Figure 1 An exploded perspective view of a storage subassembly of a dispenser;

[0092] - Figure 6 yes Figure 1 A perspective view of a cam ring of a distributor;

[0093] - Figure 7 yes Figure 1 A perspective view of a rotating shrink ring of a dispenser;

[0094] - Figure 8 yes Figure 1 Detailed view of the cam system of the distributor;

[0095] - Fig. 9 is used for Figure 1 Detailed view of the locking system of the dispenser;

[0096] - Fig.10 is a longitudinal sectional view of a second example of a dispenser according to the present invention in a dispensing position. DETAILED DESCRIPTION

[0097] By convention, the “axial” direction in the figures corresponds to the direction of the main axis X of the dispenser 10 for fluid products, which is configured to receive the dispenser head 12 , and the “radial” direction is orthogonal to the axial direction.

[0098] In the following detailed description of the drawings, the terms "upper" and "lower", or "higher" and "lower" will be used without limitation with reference to the axial direction. In this case, the upper part of the dispenser 10 corresponds to the part where the dispensing head 12 is located.

[0099] Similarly, the terms "outer or outer" and "inner or inner" are used with reference to a radial direction, the outer element being radially further from the axis X than the inner element.

[0100] Figures 1 to 3 A first example of a fluid dispenser 10 according to the invention is shown.

[0101] Fig.10 A second example of a fluid dispenser 10 according to the invention is shown.

[0102] The dispenser 10 includes Figure 4 An upper part in the form of a dispensing head 12 and a lower part in the form of a receptacle 14 are shown.

[0103] Advantageously, the upper part is rotatable relative to the lower part. Thus, rotation of the upper part relative to the lower part, ie rotation of the dispenser head 12 relative to the housing 14, allows the fluid contained in the storage subassembly 16 located in the housing 14 to flow out.

[0104] like Figure 4 As shown, the dispensing head 12 includes a dispensing dome 18, an attachment ring 20 and a rotation shrink ring 22, which are assembled together to be connected rotationally and axially. In other words, the rotation of the dispensing dome 18 and / or the attachment ring 20 relative to the receiving portion 14 causes the rotation of the rotation shrink ring 22.

[0105] The attachment ring 20 is configured to rotate around the shrink ring 22 and is covered by the dispensing dome 18 .

[0106] In the example shown, the distribution dome 18 comprises axial tongues 24, each having a through hole 25. The axial tongues 24 cooperate with cutouts 26 in the attachment ring 20 at the upper opening and with connection means on the rotational shrink ring 22.

[0107] The connection means of the rotational shrink ring 22 are a slot 28 in which the axial tongue 24 of the distribution dome 18 is accommodated and a projection 30 which is inserted into the hole 25 of the axial tongue 24 of the distribution dome 18 .

[0108] The dispensing dome 18 comprises a dispensing orifice 32 through which the fluid product exits and into which a dispensing orifice 34 of the rotating shrink ring 22 opens.

[0109] In the example shown, the lower part consists of the housing 14 and the cam ring 36 .

[0110] The receiving portion 14 is configured to receive the storage subassembly 16 , and in particular, to receive the container 37 contained in the storage subassembly 16 .

[0111] The housing 14 is also designed to receive a cam ring 36, which is attached to the housing, in particular to its upper portion. To achieve this, the housing 14 comprises an upper edge forming a shoulder 38, which is housed in an annular groove 40 formed by an annular flange 42 on the cam ring 36. The cam ring 36 is thus axially retained on the housing 14.

[0112] In the example shown and as can be seen in Figure 5 As seen in FIG. 1 , the storage subassembly 16 comprises a fluid container 37 , an actuating member 44 and a dispensing pump 46 .

[0113] According to the invention, the actuation member 44 is designed to be installed in the fluid dispenser 10 and to actuate the dispenser pump 46 .

[0114] The actuating member 44 comprises:

[0115] at least one connection means for attaching to the container 37 of the dispenser 10,

[0116] a chamber 48 configured to receive the dispensing pump 46 ,

[0117] - A first cam device 50 .

[0118] In the example shown, the actuating member 44 is a circular member comprising a circular peripheral ring 52 and a cylindrical central housing of circular cross section forming a cavity 48 configured to receive the dispensing pump 46. The cavity 48 is connected to the peripheral ring 52 by a transverse wall 54 extending from the peripheral ring 52 towards a longitudinal wall 56 of the cavity 48.

[0119] The arms 58 (here there are three arms) serve primarily to reinforce the circular structure of the peripheral ring 52. The arms 58 extend from the cavity 48 towards the peripheral ring.

[0120] The center housing extends vertically downwardly through a base plate that supports the lower portion of the pump 52 .

[0121] The actuating member 44 also comprises means for attachment to the container 37 .

[0122] Advantageously, the actuation member 44 is attached directly to the container 37 .

[0123] Preferably, the actuation member 44 is connected to the container 37 in a sealed manner.

[0124] In the example shown here, the actuating member 44 is welded to the container 37 .

[0125] Preferably, the container 37 is a flexible bag. Preferably, the container 37 is a multilayer body consisting of at least one layer of plastic and at least one layer of aluminum.

[0126] Flexible means that it can be deformed without breaking or deteriorating. In other words, a flexible bag can be deformed without breaking or being damaged.

[0127] Advantageously, the flexible bag allows the use of an airless system, wherein the flexible bag shrinks as the fluid product is consumed.

[0128] When the actuating member 44 is mounted in the dispenser 10, it can also be displaced according to an axial displacement obtained by converting the rotary movement of the actuating member 44 by the first cam means 50. The axial displacement enables the fluid dispensing pump 46 to be activated.

[0129] The axial displacement is carried out from the rest position towards the fluid dispensing position.

[0130] In the example shown, the rest position is Figure 2 The lower position of the actuating member 44 is visible in the figure, and the product dispensing position is Figure 3 The high position of the actuating member 44 can be seen in FIG.

[0131] Advantageously, the rotary shrink ring 22 and the actuating member 44 are connected in rotation, wherein a rotation of the rotary shrink ring 22 causes a rotation of the actuating member 44 .

[0132] In the example shown here, the rotating shrink ring 22 includes an inner skirt 60 provided with slots 62, wherein the inner skirt is three in number, and three arms 58 of the actuating member 44 are inserted into the slots 62, so that the rotating shrink ring 22 and the actuating member 44 are rotationally connected.

[0133] When the rotating shrink ring 22 is rotationally connected to the dispensing dome 18 and / or the attachment ring 20, the rotation of the dispensing dome 18 and / or the attachment ring 20 relative to the receiving portion 14 causes the actuation member 44 to rotate. In other words, the rotation of the upper portion of the dispenser 10 relative to the lower portion of the dispenser 10 causes the actuation member 44 to rotate.

[0134] Advantageously, the rotation can be performed by turning to the left or to the right.

[0135] Advantageously, the first cam means 50 is a cam follower configured to follow the trajectory 64 of the dispenser 10 .

[0136] Preferably, the trajectory of the dispenser 10 is the trajectory 64 formed by the second cam means 66 of the cam ring 36 .

[0137] Preferably, the first cam means 50 is a radial projection configured to follow the trajectory 64 of the dispenser 10 .

[0138] In the example shown here, the first cam means 50 are three radial projections on the outer surface of the peripheral ring 52. The projections extend outwardly from the outer surface. The projections have a semicircular cross section with the flat side facing upward and the arc facing downward. The arc contacts the cam track 64.

[0139] Advantageously, the cam track 64 has a vertex 68 and a recess 70 to enable axial displacement of the actuating member 44. Preferably, the cam track 64 has at least two vertex 68 and two recess 70.

[0140] In the example shown, the cam ring 36 includes a wavy cam path 64 having three apexes 68 and three valleys 70. Figure 6 can be seen in.

[0141] In the example shown here, especially Figure 6 In FIG. 7 , the cam ring 36 is a circular ring including an inner wall 72 and an outer wall 74 .

[0142] The inner surface of the inner wall 72 has a cam track 64 .

[0143] The inner surface of the outer wall 74 comprises an annular flange 42 forming an annular groove 40 in which the shoulder 38 of the upper edge of the housing 14 is housed.

[0144] In other words, the annular groove 40 is formed between the inner wall 72 and the outer wall 74 , and the upper edge of the receiving portion 14 is accommodated in a space formed between the two walls, the outer wall 74 and the inner wall 72 .

[0145] Advantageously, the cam ring 36 is mounted axially fixedly on the housing 14 and is rotationally movable relative to the actuating member 44 .

[0146] Therefore, the cam ring 36 includes a second cam device 66 that cooperates with the first cam device 50 of the actuating part 44 of the storage subassembly 16 to convert the rotational movement of the actuating part 44 relative to the cam ring 36 into an axial displacement of the actuating part 44 from a low rest position toward a high dispensing position, and the axial displacement enables actuation of the dispensing pump 46 of the fluid product.

[0147] The dispensing pump 46 is attached to the dispensing head 12 by means of the upper part of the pump which is connected at the dispensing orifices 32 , 34 for the fluid product, which are preferably situated at the top of the dispensing head 12 .

[0148] Advantageously, the dispensing pump 46 comprises a pump body and a dispensing rod 76 axially movable relative to one another.

[0149] Preferably, dispensing pump 46 is attached via a dispensing rod 76 .

[0150] In the example shown, the dispensing rod 76 is connected to the pump body by a lower end of the dispensing pump 76 and is attached to the dispensing head 12 by an upper end of the dispensing pump 76 .

[0151] In the example shown here, the dispensing pump 46 is of the so-called perch type. In other words, the dispensing pump 46 is attached to the dispensing orifice 34 of the rotating shrink ring 22 by means of a dispensing rod 76 .

[0152] In a first example, the dispensing rod 76 abuts at a high level against a shoulder 78 of the dispensing orifice 34 of the rotating shrink ring 22, as shown in FIG. Figure 2 and Figure 3 As shown. Therefore, the dispensing pump 46 is wedged upward.

[0153] exist Fig.10 In the second example shown, the dispensing pump 46 is held at the dispensing orifice 34 of the rotating shrink ring 22 by the friction of the dispensing rod 76 .

[0154] Advantageously, the dispensing pump 46 is wedged upwards before or upon first use of the dispenser 10. In other words, the dispensing rod 76 is blocked at the vertical axial abutment before (i.e., during manufacture) or upon first use. This allows passage at the high point of the cam path to correspond to the maximum depressed position of the dispensing rod 76 in the dispensing pump 46.

[0155] The pump is connected to the dispensing rod 76 so that the pump can move axially.

[0156] The axial displacement of the dispensing pump 46 is caused by the actuating member 44 .

[0157] Rotation of the dispensing dome 18 and / or the attachment ring 20 relative to the receptacle 14 causes rotation of the rotating shrink ring 22 and rotation of the actuation member 44 .

[0158] During this rotation, the cam follower (first cam device 50) of the actuating member 44 follows the cam path 64 of the cam ring 36, which has a concave portion 70 and a peak 68, as shown in FIG. Figure 8 This trajectory 64 , composed of a series of recesses 70 and apexes 68 , makes it possible to induce an axial displacement in the actuating member 44 .

[0159] The upper edge 80 of the cavity 48 of the actuating member 44 (designed to receive the dispensing pump 46) rests on a pump support 82 in which the dispensing pump 46 is fixedly accommodated, and the actuating member then drives the dispensing pump 46 to axially displace and activate it.

[0160] Each rotation of the upper portion of the housing 14 enables the dispenser pump 46 to be activated and to dispense a dose of fluid product.

[0161] The number of recesses 70 and apexes 68 enables the dose dispensed to be determined.

[0162] In the example shown here, the trajectory 64 comprises three recesses 70 and three vertices 68 , so that a rotation of the upper part of the receptacle 14 by 120° is sufficient to dispense a dose.

[0163] The cam system enables the rotational movement of the dispensing pump 46 to be converted into a translational movement of the fluid product and enables the fluid product to be dispensed.

[0164] Furthermore, advantageously, the particular mounting of the dispensing pump 46 from the top makes it possible to ensure vertical movement of the dispensing pump 46 without choking points.

[0165] Therefore, if any play occurs during the rotational and axial movement, there is an angular offset between the cam follower and the cam track 64 and a spacing of the cam follower relative to the cam track 64 in the recess 70 when the dispensing rod 76 has reached its abutment.

[0166] Thus, there is no choke point in the high position (ie, at the maximum insertion position of the dispensing rod 76) or in the low position (the spacing of the cam follower and the cam track 64 when the dispensing rod 76 is at its minimum insertion position).

[0167] Furthermore, the cam ring 36 comprises at least one first locking means 84 designed to cooperate with at least one second locking means 86 of the rotational shrink ring 22 .

[0168] The locking means 84, 86 make it possible to limit the flutter effect, ie the floating unbalance effect, of the various movable parts of the dispenser 10, in particular when the actuating member 44 is in the rest position. The locking means 84, 86 make it possible to limit any rotational play when the dispensing pump 46 is in the rest position. The user feels more comfortable.

[0169] Furthermore, the locking means 84, 86 enable a sensitive "click" to be produced at the beginning and end of the stroke. Thus, the user knows when he has started to activate the dispensing pump 46 and when the dose has been completely dispensed. The user is naturally aware that the system is in the rest position.

[0170] Advantageously, the at least one first locking device 84 of the cam ring 36 has axial elasticity. For example, the elasticity is achieved by reducing the thickness of the at least one first locking device 84.

[0171] The feel through the notch at the beginning and end of the stroke is obtained by vertical deformation, rather than radial deformation as in conventional systems. Tolerances are reduced.

[0172] In the example shown, the inner wall 72 and the outer wall 74 of the cam ring 36 are connected by a transverse shoulder which forms an upper surface 88 of the cam ring 36 and on which the first locking means 84 are located.

[0173] In the example shown here, the cam ring 36 comprises a single first locking device 84. This first locking device is a resilient protrusion 89 protruding from the upper surface 88 of the lateral shoulder of the cam ring 36. The rotation shrink ring 22 comprises three second locking devices 86. These second locking devices are notches 90 located on the lower surface of the rotation shrink ring 22.

[0174] The protrusion 89 and notch 90 have entry ramps 92 on either side to facilitate passing the protrusion 89 of the cam ring 36 and seating the protrusion 89 in one of the notches 90 of the rotating retracting ring 22. This results in a comfortable feel through the notch between the beginning and end of travel that is neither too strong nor too weak.

[0175] In another example not shown, the first locking device 84 extends over a portion of the upper surface of the cam ring 36 to enable a larger locking area that is more easily perceived by the user. The first locking device also provides progressive braking and adjustable height, for example, the height can be adjusted to compensate for manufacturing tolerances.

[0176] Advantageously, the at least one first locking device 84 and the at least one second locking device 86 are made of different materials, the material of the at least one first locking device 84 being more resistant to aging than the material of the at least one second locking device 86 .

[0177] In this case, the aging is aging that occurs under stress due to friction between the first locking device and the second locking device.

[0178] The at least one first locking device 84 located on the rotation shrink ring 22 is preferably made of polypropylene.

[0179] The second locking device 86 on the cam ring 36 is preferably made of polyoxymethylene (POM), which is more resistant to aging under stress.

Claims

1. A fluid product dispenser (10), comprising: - a dispensing head (12) for dispensing a fluid product, - a container (37) for said fluid product, a dispensing pump (46) which is attached to the dispensing head (12) via an upper part of the dispensing pump (46), an actuating member (44) attached to the container (37) and displaceable from a rest position towards a product dispensing position according to an axial displacement, and - a cam ring (36) which is capable of rotational movement relative to the actuating member (44), The actuating member (44) comprises a first cam device (50) cooperating with a second cam device (66) of the cam ring (36) so as to obtain an axial displacement by converting a rotational movement of the actuating member (44) relative to the cam ring (36), said axial displacement making it possible to actuate the dispensing pump (46), The cam ring (36) also includes at least one first locking device (84) that cooperates with at least one second locking device (86) of the dispenser (10) to prevent the actuating member (44) from rotating relative to the cam ring (36) when the actuating member (44) is in a low rest position.

2. Dispenser (10) according to the preceding claim, comprising a rotating shrink ring (22) which is connected in rotation to the actuating member (44), said at least one second locking device (66) being located on said rotating shrink ring (22).

3. Dispenser (10) according to the preceding claim, wherein The at least one first locking device (84) is a resilient protrusion (89) protruding from an upper surface (88) of the cam ring (36).

4. The dispenser (10) according to any one of the preceding claims, wherein: The at least one first locking device (84) is a resilient protrusion protruding radially from the surface of the cam ring.

5. Dispenser (10) according to the preceding claim, wherein The protrusion (89) includes entry ramps (92) on either side.

6. The dispenser (10) according to any one of the preceding claims in combination with claim 2, wherein: The at least one second locking means (86) is a notch (90) located on the lower surface of the rotational shrink ring (22).

7. Dispenser (10) according to any one of the preceding claims, wherein: The at least one first locking device (84) and the at least one second locking device (86) are made of different materials, and the material of the at least one first locking device (84) is more resistant to aging than the material of the at least one second locking device (86).

8. Dispenser (10) according to any one of the preceding claims, wherein The cam ring (36) is mounted on the receiving portion (14) of the dispenser (10).

9. Dispenser (10) according to any one of the preceding claims, wherein: The first cam device (50) is a cam follower configured to follow a trajectory (64) of the second cam device (66) of the cam ring (36).

10. Dispenser (10) according to the preceding claim, wherein The cam follower is a radial projection configured to follow the trajectory (64) of the second cam device (66) of the cam ring.

11. Dispenser (10) according to any one of the preceding claims, wherein The cam ring (36) includes a cam track (64) having at least two valleys (70) and two apexes (68).

Images