Fluid product delivery device with pump

Abstract

The present invention relates to a device for dispensing a fluid product, the device comprising a pump (10) having a pump body (11) attached to a neck (2) of a container (1) containing the fluid product to be dispensed, the neck (2) having an axial upper edge (2') on which a compression element (9; 9') is arranged, the pump comprising a turret (50) having a mounting part (51) for direct attachment to the pump body (11) and a compression element (9; 9') for mounting the neck (2) to the pump body (10). a compression portion (52) for compressing the compression element (9; 9') on the axial upper edge (2') of the pump (10) (2); and a fitting sleeve (53) extending axially downward below the compression portion (52) and fitting into the neck portion (2) of the container (1) when the pump (10) is assembled to the container (1), wherein the fitting sleeve (53) has at least one radial sealing profile (54) that sealingly engages with the neck portion (2) of the container (1) after assembly.

Description

[Technical Field]

[0001] The present invention relates to a fluid product dispensing device including a pump. [Background technology]

[0002] A conventional pump includes a pump body defining a pump chamber, with at least one piston sliding within the pump body to deliver a dose of a fluid product contained in a container to which the pump is attached.

[0003] The pump is attached to the neck of the container by a fixing ring and usually includes a turret, which is an element attached to the pump body and comes into contact with a neck seal provided to ensure a tight seal at the neck of the container.

[0004] A disadvantage of this type of pump is that the fluid product may come into contact with the neck seal, which may in particular absorb some of the fluid. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2017 / 140976 Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a fluid product dispensing device which does not suffer from the above drawbacks.

[0007] Another object of the present invention is to provide a fluid product dispensing device which eliminates the risk of fluid product absorption by the neck seal.

[0008] Another object of the present invention is to provide a fluid product dispensing device that tolerates relatively large manufacturing tolerances.

[0009] Another object of the present invention is to provide a fluid product dispensing device that is simple and inexpensive to manufacture and assemble, is reliable in use, and yet ensures a complete seal. [Means for solving the problem]

[0010] In order to achieve the above object, the present invention provides a fluid product discharge device, comprising a pump having a pump body attached to a neck of a container containing a fluid product to be discharged, the neck having an axial upper edge on which a compression element is arranged, the pump having a turret, the turret having a mounting portion for direct attachment to the pump body, a compression portion for compressing the compression element on the axial upper edge of the neck, and a fitting sleeve extending axially downward below the compression portion and fitting to the neck of the container when the pump is assembled to the container, the fitting sleeve having at least one radial seal profile that sealingly engages with the neck of the container after assembly.

[0011] Advantageously, each said radial sealing profile is formed by a peripheral sealing bead.

[0012] According to a first advantageous embodiment, said mating sleeve comprises a single said radial sealing profile.

[0013] According to a second advantageous embodiment, said mating sleeve comprises at least two said radial sealing profiles, offset in the axial direction.

[0014] According to a first advantageous variant, said compression element is made in the form of a neck seal.

[0015] According to a second advantageous variant, the compression element is formed by a deformable lip fixed to the turret.

[0016] Advantageously, the compression section is formed by a radial annular wall of the turret.

[0017] Advantageously, the turret is a single part mounted directly on the pump body and adapted to directly engage the compression element to compress it on the axial upper edge of the neck and adapted to directly engage the inside of the neck. [Brief explanation of the drawings]

[0018] The features, advantages and other aspects of the present invention will become more apparent from the detailed description given below, given by way of non-limiting example, and by reference to the accompanying drawings. [Figure 1] 1 is a schematic cross-sectional view of a fluid product dispensing device including a pump; [Figure 2] 1 is a schematic cross-sectional view showing details of the neck of the container, the turret and the fixing ring when assembling the pump to the container in the first advantageous embodiment; [Figure 3] FIG. 3 is a schematic cross-sectional view similar to FIG. 2, showing details of assembling the pump to the container. [Figure 4] FIG. 4 is a schematic cross-sectional view similar to FIG. 3, showing details of assembling the pump to the container. [Figure 5] 5 is a cross-sectional view similar to FIG. 4, showing a second advantageous embodiment. [Figure 6] FIG. 6 is a schematic perspective view, partly cut away, of the turret shown in FIG. 5. [Figure 7] 5 is a view similar to FIG. 4, illustrating a third advantageous embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0019] In the following description, the terms "axial" and "radial" refer to directions relative to the central longitudinal axis of the device. The terms "upper," "lower," "upper" and "lower" refer to the positions of the device in an upright position as shown in Figure 1. The following description is made with reference to three embodiments, but it should be understood that other variations are possible.

[0020] The first embodiment shown in FIGS. 1 to 4 is an example based on a conventional fluid product discharge device.

[0021] The device comprises a container 1 provided with a neck 2 and a pump 10 assembled to the neck 2 of the container 1 by means of a fixing ring 5 via a compression element 9, which is useful for compensating for dimensional tolerances of the parts and for ensuring secure fixing in all circumstances.

[0022] 1 to 5, the compression element is a neck seal 9 arranged on the upper axial edge 2' of the neck 2 of the container 1. In the example shown in Figure 7, the compression element is a deformable lip 9' fixed to the turret 50 and engaging the upper axial edge 2'.

[0023] The pump comprises a pump body 11 provided with an upper end 12 .

[0024] The piston 20 sealably slides within the pump body 11 with each actuation, expelling a dose of product from the container 1.

[0025] Details of the internal structure of the pump will be omitted, as the present invention applies to all types of pumps and is not limited in any way by the particular characteristics of the pumps illustrated in the figures.

[0026] Conventionally, the piston 20 is fixed to, and in particular integral with, a drive rod 30 as shown in the various figures, which has assembled thereon a dispensing head 60 or pusher that a user presses to actuate the pump.

[0027] The pump body 11, and in particular its upper end 12, is fixed in the turret 50 at a mounting portion 51 of the turret 50.

[0028] The turret 50 also comprises a compression portion 52, preferably formed by a radially extending annular wall, which, during assembly, engages with a compression element 9 interposed between the upper edge of the neck 2 and the compression portion 52.

[0029] The turret 50 is provided with a fitting sleeve 53 that extends axially downward below the compression portion 52, and the fitting sleeve 53 fits into the axial upper part of the neck portion 2 of the container 1 when assembled.

[0030] The turret 50 thus forms a single part which is attached directly to the pump body 11 on the one hand and which directly engages with the compression elements 9, 9' on the other hand, compressing the latter on the axial upper edge 2' of the neck 2 and finally engaging directly with the inside of the neck 2 of the container 1. The turret 50 is advantageously manufactured by moulding from a suitable plastic material.

[0031] The ferrule 55 is incorporated inside the pump body 11 and cooperates with the piston 20 to define the rest position of the piston. In the example shown in FIG.

[0032] According to the invention, the mating sleeve 53 comprises at least one radial sealing profile 54 which sealingly engages with the neck 2 of the container 1 .

[0033] In the examples shown in Figures 2 to 4 and 7, a single radial seal profile 54 is provided, which is advantageously formed by a peripheral seal bead.

[0034] 5 and 6, two axially offset radial sealing profiles 54a, 54b are provided on the mating sleeve 53, each advantageously formed by a peripheral sealing bead. Of course, any number of sealing profiles 54 may be provided.

[0035] This at least one sealing profile 54 makes a sealed contact with the inside of the neck 2 of the container 1. This eliminates the need for a neck seal, which is here replaced by the compression element 9.

[0036] Of course, the compression element 9 can also be in the form of a neck seal, as in the example shown in Figures 1 to 5. Alternatively, it can be formed by a deformable lip 9' fixed to a turret 50 and engaging the upper axial edge 2' of the neck 2 of the container 1, as shown in Figure 7.

[0037] An essential advantage of the present invention is that the presence of at least one radial sealing profile 54 avoids any risk of contact between the fluid product contained in the container 1 and the neck seal, which may absorb fluid.

[0038] While the present invention has been described with reference to particular embodiments thereof, this description is naturally non-limiting, and those skilled in the art can apply useful modifications to the invention without departing from the scope of the invention as defined in the appended claims.

Claims

1. A pump (10) having a pump body (11) attached to a neck (2) of a container (1) containing a fluid product to be dispensed, The neck portion (2) has an axial upper edge (2'), On said axial upper edge (2') there is arranged a compression element (9; 9'), The pump comprises a turret (50); The turret (50) a mounting portion (51) for direct mounting to the pump body (11); a compression part (52) for compressing the compression element (9; 9') on the axial upper edge (2') of the neck part (2); a fitting sleeve (53) extending axially downward below the compression section (52) and adapted to fit onto the neck section (2) of the container (1) when the pump (10) is assembled to the container (1); The fitting sleeve (53) and at least one radial sealing profile (54) that sealingly engages with the neck (2) of the container (1) after assembly.

1. A fluid product dispensing device comprising:

2. Each of said radial seal profiles (54) is formed by a peripheral seal bead.

10. The fluid product dispensing device of claim 1.

3. The mating sleeve (53) comprises a single radial seal profile (54).

3. A fluid product dispensing device according to claim 1 or 2.

4. The mating sleeve (53) comprises at least two of the radial sealing profiles (54a, 54b) offset in the axial direction.

3. A fluid product dispensing device according to claim 1 or 2.

5. The compression element (9) is made in the form of a neck seal 5. A fluid product dispensing device according to claim 1.

6. The compression element (9') is formed by a deformable lip fixed to the turret (50).

5. A fluid product dispensing device according to claim 1.

7. The compression section (52) is formed by the radial annular wall of the turret (50).

7. A fluid product dispensing device according to any one of claims 1 to 6.

8. The turret (50) is mounted directly on the pump body (11) and is suitable for directly engaging the compression element (9, 9') to compress the compression element (9, 9') on the axial upper edge (2') of the neck (2), and is a single part adapted for direct engagement with the inside of the neck (2).

8. A fluid product dispensing device according to any one of claims 1 to 7.

Images