Fluid product dispensing device

Abstract

A fluid dispenser device having a body, a reservoir including a neck, a dispenser member mounted on the reservoir, a lateral actuator system secured to the body and including a lever pivotally mounted, and a transverse projection formed directly on the reservoir and formed on or below the neck and co-operating, during actuation, with the lateral actuator system. The reservoir includes two parallel transverse projections that extend in symmetrical manner respectively on either side of the reservoir, a radial recess being defined between the two parallel transverse projections, the radial recess co-operating with the body so as to guide the reservoir axially during actuation.

Claims

1. A fluid dispenser device comprising: a body; a reservoir including a neck; a dispenser member that is mounted on said reservoir; a lateral actuator system that is secured to said body, said lateral actuator system including a lever that is mounted to pivot on said body; said device including at least one transverse projection that is formed directly on said reservoir, said at least one transverse projection being formed on or below said neck of the reservoir and co-operating, during actuation, with said lateral actuator system; said device being wherein each side of said reservoir includes two axially coplanar parallel transverse projections that extend in symmetrical manner, a radial recess being defined on each side of said reservoir between said two parallel transverse projections, said radial recess co-operating with said body so as to guide said reservoir axially during actuation.

2. The device according to claim 1, wherein each transverse projection has a rounded surface that co-operates with said lateral actuator system.

3. The device according to claim 1, wherein said at least one transverse projection is integrally molded with said reservoir.

4. The device according to claim 1, wherein said dispenser member is a pump including a piston that slides in a pump body.

5. The device according to claim 1, wherein the dispenser member is a pump or a valve.

6. The device according to claim 1, wherein the reservoir is made of glass.

7. The device according to claim 1, wherein said at least one transverse projection co-operates, during actuation, with the lever of the lateral actuator system.

8. The device according to claim 1, wherein each transverse projection has a rounded surface that co-operates with the lever of the lateral actuator system.

9. The device according to claim 1, wherein the two axially coplanar parallel transverse projections extend in a same plane orthogonal to an axis along which the reservoir is guided axially during actuation.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a diagrammatic section view of a device in an advantageous embodiment, shown in its rest position;

(2) FIG. 2 is a view similar to the view in FIG. 1, shown in the actuated position;

(3) FIG. 3 is a perspective view of an assembly formed by a pump assembled on a reservoir, in a first variant of the embodiment in FIGS. 1 and 2; and

(4) FIGS. 4 and 5 are diagrammatic section views respectively on two perpendicular section planes of a reservoir in a second variant of the embodiment in FIGS. 1 and 2.

DESCRIPTION OF NON-LIMITING EMBODIMENTS OF THE INVENTION

(5) In the description, the terms “axial”, “transverse”, and “radial” are relative to the longitudinal axis A shown in FIGS. 1 and 2.

(6) The fluid dispenser device shown in FIGS. 1 and 2 includes a body 10 that advantageously incorporates a dispenser orifice 5. In a variant, the dispenser orifice may be formed in a dispenser head that is assembled on and fastened to said body.

(7) Inside the body there is arranged a reservoir 20 containing a fluid to be dispensed. A dispenser member 30, in particular a pump or a valve, is assembled on the neck 21 of the reservoir 20 in known manner, in particular by means of a fastener ring. The unit formed by the reservoir 20 and by the dispenser member 30 is capable of being moved axially inside the body 10 during actuation, so as to dispense a dose of fluid through the dispenser orifice 5.

(8) The dispenser member 30 is advantageously a pump including a piston that slides in a pump body. The structure of such a dispenser member is well known and is thus not shown in greater detail in the figures, in particular for the purpose of clarity.

(9) In order to actuate the device, the body 10 includes a lateral actuator system 40. The lateral actuator system may advantageously include a lever 42 that is mounted to pivot on the body 10 about a pivot axis P, said lever 42 co-operating, during actuation, with the unit that is formed by the reservoir 20 and by the dispenser member 30.

(10) The lateral actuator system 40 co-operates with at least one transverse projection 25 that is formed directly on the reservoir 20, on or below the neck 21 of the reservoir, e.g. during molding of said reservoir 20.

(11) In the embodiment shown, at least one transverse projection 25 co-operates directly with a cam surface 43 of said lever 42. In a variant, a movable element could be provided that is mounted to pivot inside said lever 42, and that could co-operate with at least one transverse projection 25 of the reservoir 20.

(12) In the invention, said reservoir 20 includes two parallel transverse projections 25 that extend in symmetrical manner respectively on either side of said reservoir 20. This configuration makes it possible to offset said transverse projections on either side of the longitudinal axis A, thereby firstly reducing the dimensions of said lever 42, and secondly avoiding having to orientate the reservoir 20 during assembly. Another advantage of this configuration is that it enables the reservoir 20 to be guided axially during its movement, using the radial recess 24 that is defined between the two parallel transverse projections 25. Such guiding may in particular be performed by an appropriate profile that is provided in the body 10.

(13) In a first variant that is shown in FIG. 3, the transverse projections 25 are arranged on the neck 21 of the reservoir 20. In a second variant that is shown in FIGS. 4 and 5, the transverse projections 25 are arranged just below said neck 21, when in the upright position of the figures.

(14) Preferably, the reservoir 20 is made of glass, such that each transverse projection 25, also made of glass, presents a coefficient of friction that is favorable on contact with the lateral actuator system 40, in particular on contact with the lever 42. This avoids having to treat said at least one transverse projection 25 with silicone, as is generally necessary when friction occurs between one plastics part and another plastics part.

(15) Advantageously, each transverse projection 25 has a rounded contact surface that co-operates with the cam surface 43 of the lever 42.

(16) The present invention thus makes it possible not only to reduce the number of components by eliminating at least the fitted ring provided in order to co-operate with the lateral actuator system, but also to simplify the assembly method by eliminating the silicone-treatment step that is necessary with such a fitted ring.

(17) Although the invention is described above with reference to several variant embodiments thereof, it is clear that any useful modification could be applied thereto by a person skilled in the art, without going beyond the ambit of the present invention, as defined by the accompanying claims.