Fluid product dispensing device comprising a pump

Abstract

A fluid product distribution device comprising a pump (10) having a pump body (11) fixed to a neck (2) of a reservoir (1) containing a fluid product to be dispensed, with an interposed compression element (9; 9'), said pump comprising a turret (50), said turret (50) comprising a fastening portion (51) for attaching to said pump body (11), a compression portion (52) for compressing said compression element (9; 9') onto said neck (2) of said reservoir (1), and a fitting sleeve (53) extending axially downwards under said compression portion (52), said fitting sleeve (53) being, upon assembly of said pump (10) onto said reservoir (1), fitting into said neck (2) of said reservoir (1), said fitting sleeve (53) comprising at least one radial sealing profile (54) which cooperates, after assembly, in a sealed manner with said neck (2) of said reservoir (1). "Figure for the abbreviation: Figure 1"

Description

Title of the invention: Fluid product dispensing device comprising a pump

[0001] The present invention relates to a fluid product distribution device comprising a pump.

[0002] A conventional pump comprises a pump body defining a pump chamber, with at least one piston sliding within said pump body to dispense a dose of a fluid product contained in a reservoir to which the pump is attached. The pump is fixed to the neck of a reservoir by means of a mounting ring, and generally includes a swivel, which is an element fixed to the pump body and which contacts a neck seal provided to ensure a tight seal at the reservoir neck.

[0003] One 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.

[0004] The present invention aims to provide a fluid product distribution device that does not reproduce the aforementioned disadvantages.

[0005] The present invention aims in particular to provide a fluid product distribution device which eliminates the risks of absorption of the fluid product by a neck seal.

[0006] The present invention also aims to provide a fluid product distribution device that allows for relatively high manufacturing tolerances.

[0007] The present invention also aims to provide a fluid product distribution device that is simple and inexpensive to manufacture and assemble and reliable to use, while ensuring perfect sealing.

[0008] The present invention therefore relates to a fluid product distribution device comprising a pump having a pump body fixed on a neck of a reservoir containing a fluid product to be distributed, with an interposition of a compression element, said pump comprising a turret, said turret comprising a fixing part for fixing to said pump body, a compression part for compressing said compression element on said neck of said reservoir, and a fitting sleeve extending axially downwards under said compression part, said fitting sleeve, when the said pump is assembled on said reservoir, fitting into said neck of said reservoir, said fitting sleeve comprising at least one radial sealing profile which cooperates, after assembly, in a hermetic manner with said neck of said reservoir.

[0009] Advantageously, each radial sealing profile is formed by a bead peripheral sealing.

[0010] According to a first advantageous embodiment, said sleeve fitting comprises a single radial sealing profile.

[0011] According to a second advantageous embodiment, said sleeve fitting comprises at least two axially offset radial sealing profiles.

[0012] According to a first advantageous variant, said compression element is made in the form of a neck joint.

[0013] According to a second advantageous variant, said compression element is formed by a deformable lip, integral with said turret.

[0014] Advantageously, said compression part is formed by a radial annular wall of said turret.

[0015] These and other features and advantages of the present invention will become more apparent from the following detailed description, given by way of non-limiting example, with reference to the accompanying drawings, in which:

[0016] [Fig-1] [Fig.1] is a schematic cross-sectional view of a distribution device a fluid product incorporating a pump

[0017] [Fig.2] Figures 2 to 4 are schematic cross-sectional views, showing in detail the neck of the tank, the swivel and the fixing ring, during the assembly of the pump onto the tank, according to a first advantageous embodiment,

[0018] [Fig.3] cf [Fig.2]

[0019] [Fig.4] cf [Fig.2]

[0020] [Fig. 5] [Fig. 5] is a view similar to that of [Fig. 4], showing a second mode advantageous implementation

[0021] [Fig.6] [Fig.6] is a schematic perspective cut-out view of the turret of the [Fig. 5], and

[0022] [Fig.7] [Fig.7] is a view similar to that of [Fig.4], showing a third advantageous method of implementation.

[0023] The terms "axial" and "radial" refer to the longitudinal central axis of the device. The terms "top", "bottom", "upper" and "lower" refer to the upright position of the device shown in [Fig. 1].

[0024] The following description will be made with reference to three embodiments, but it is understood that other variants are possible.

[0025] In the first embodiment, shown in Figures 1 to 4, a conventional type fluid product distribution device is shown.

[0026] The device comprises a reservoir 1 provided with a neck 2, a pump 10 being assembled on said neck 2 of the reservoir 1 by means of a fixing ring 5, with interposition of a compression element 9, useful for compensating the dimensional tolerances of the parts and thus ensuring a reliable fixing in all circumstances.

[0027] The pump 10 comprises a pump body 11 having an upper end rim 12. A piston 20 slides in a sealed manner inside said pump body 11 at each actuation to distribute a dose of product from the reservoir 1.

[0028] The internal structure of the pump will not be described in further detail below, as the present invention applies to all types of pumps, and is in no way limited by the specific characteristics of the pump given as an example in the figures.

[0029] In a conventional manner, the piston 20 is integral, in particular monobloc, as shown in the drawings, with an actuating rod 30 on which is assembled a distribution head 60 or pusher on which the user presses to actuate the pump 10.

[0030] The pump body 11 is fixed in a turret 50 at the level of a fixing part 51 of said turret.

[0031] The turret 50 also includes a compression part 52, preferably formed by a radial annular wall, which cooperates during assembly with the compression element 9 which is interposed between the upper edge of the neck 2 and said compression part 52.

[0032] The turret 50 includes a fitting sleeve 53 extending axially downwards under said compression part 52, said fitting sleeve 53 being fitted during assembly into the axially upper part of the neck 2 of the reservoir 1.

[0033] The turret 50 is advantageously made by molding in a suitable plastic material.

[0034] A ferrule 55 is assembled inside the pump body 11, and cooperates with the piston 20 to define the rest position of the latter.

[0035] In the example of [Fig.1], the ferrule 55 is formed as a single piece with the turret 50.

[0036] According to the invention, the sleeve fitting 53 comprises at least one radial sealing profile 54 which cooperates in a hermetic manner with the neck 2 of the reservoir 1.

[0037] In the example of figures 2 to 4 and 7, there is a single radial sealing profile 54, advantageously formed by a peripheral sealing bead.

[0038] In the example of figures 5 and 6, there are two radial sealing profiles 54a, 54b axially offset on said sealing sleeve 53, advantageously each formed by a peripheral sealing bead.

[0039] Of course, any number of sealing profiles 54 can be provided.

[0040] This at least one sealing profile 54 creating a sealed contact with the inside of the neck 2 of the tank 1, it is no longer necessary to provide a neck seal, which is therefore replaced here by the compression element 9.

[0041] Of course, this compression element 9 can be made in the form of a seal of the collar, as in the examples in figures 1 to 5.

[0042] Alternatively, it can be formed by a deformable lip 9', integral with the turret 50, and which cooperates with the upper surface of the neck 2 of the reservoir 1, as seen in [Fig.7].

[0043] An essential advantage of the present invention is that any risk of contact between the fluid product contained in the tank 1 and a neck seal capable of absorbing fluid is avoided by the presence of at least one radial sealing profile 54.

[0044] Although the present invention has been described with reference to particular embodiments thereof, it is understood that this description is not limiting and that a person skilled in the art may make any useful modification to it without departing from the scope of the present invention as defined by the attached claims.

Claims

Demands

1. A fluid product dispensing device comprising a pump (10) having a pump body (11) fixed to a neck (2) of a reservoir (1) containing a fluid product to be dispensed, with an interposed compression element (9; 9'), said pump comprising a turret (50), said turret (50) comprising a fastening portion (51) for attaching to said pump body (11), a compression portion (52) for compressing said compression element (9; 9') onto said neck (2) of said reservoir (1), and a fitting sleeve (53) extending axially downwards under said compression portion (52), said fitting sleeve (53) being, upon assembly of said pump (10) onto said reservoir (1), fitted into said neck (2) of said reservoir (1), characterized in that said fitting sleeve (53) comprises at least one radial sealing profile (54) which cooperates, after assembly, in a sealed manner with said neck (2) of said reservoir (1).

2. Device according to claim 1, wherein each radial sealing profile (54) is formed by a peripheral sealing bead.

3. Device according to claim 1 or 2, wherein said sleeve fitting (53) comprises a single radial sealing profile (54).

4. Device according to claim 1 or 2, wherein said sleeve fitting (53) comprises at least two axially offset radial sealing profiles (54a, 54b).

5. Device according to any one of the preceding claims, wherein said compression element (9) is made in the form of a neck seal.

6. Device according to any one of claims 1 to 4, wherein said compression element (9') is formed by a deformable lip, integral with said turret (50).

7. A device according to any one of the preceding claims, wherein said compression portion (52) is formed by a radial annular wall of said turret (50).

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