The invention relates to the domain of fluid product dispensers, typically for products in the form of pastes, creams, oils or powder products.
It also relates to the domain of dispensers including a so-called distribution head for application of the said product on a support, typically the skin.
Finally, it relates to the domain of dispenser closing systems.
A large number of dispensers-applicators for fluid or powder products are already known.
Thus, French patent FR 2 820 958 issued by the applicant describes a ball dispenser-applicator for fluid cosmetic products.
Similarly, French application No. 02 12613 describes a digital paste cosmetic product dispenser with a head comprising a plurality of orifices, and a closing cap.
Problems that Arise
In general, the dispenser head comprises a circular central orifice that is not adapted or is poorly adapted to direct application of the product on the skin in the case of cosmetic or dermatological product, or onto any other support in the case of another product. In this case, the palm of the hands or the fingers is used as an application means, with the corresponding disadvantages, particularly in terms of hygiene and cleanliness.
However, the dispenser head may include a plurality of orifices, or a non-circular orifice. In this case, the dispenser head as a whole is closed by a cap. Consequently, since the said orifices are not closed individually, the result may be variable and continuous product losses or dirt collecting on the outside surface of the said head, depending on the nature of the packaged product. Furthermore, it may be difficult to obtain a sealed closure, except by applying strong manual closing and opening movements beyond what is currently accepted as being a normal force for the user.
Finally, there may be a problem of progressive blocking of the said orifices, depending on the nature of the product packaged in the said dispenser.
Thus, dispenser heads are rarely adapted to direct and efficient application of the said product, particularly because orifices with a shape adapted to such an application would be difficult or inconvenient to close in a sealed manner.
The subject of the invention is a dispenser-applicator for which the head may include at least one arbitrary shaped orifice, namely typically a non-circular orifice, possibly non-centred with respect to the axial screwing direction.
In particular, this head may be adapted to an application of the said product typically with a particular distribution of the said product and/or massage of the said support during application of the said product, typically massage of the skin, the said orifice being closable by a cap by simple screwing, although in this case the said orifice is not a traditional orifice, namely a single circular orifice centred along the axial direction of the said screwing.
According to the invention, the dispenser-applicator of a fluid or powder product, typically a cosmetic product onto a support, typically the skin, comprises a receptacle that will contain the said product, formed from a body and a threaded distribution head provided with at least one orifice, and a threaded cap that will close the said head, the said cap typically comprising an internal thread and the said head typically comprising an external thread, the said internal and external threads cooperating such that the said cap can close the said head by screwing along an axial screwing direction. This dispenser-applicator is characterised in that:
Thus, due to this combination of means a) to d), a simple screwing of the cap closes off the said orifice, or individually closes off each of the orifices of the said head regardless of their position, shape or number on the said head, so that the head can be kept clean and the risk of product losses is limited.
Therefore, the invention provides a means of choosing different orifice shapes to enable direct application of the product on the skin or the face in the case of cosmetic products or dermatological care, or any type of support when the product is another product, for example such as glue, an adhesive, without the problem of closing off the said orifice or orifices limiting the possible shapes.
The fact that the axial projection closes off the said orifice each time that it is screwed in, typically by axial penetration of the lower end of the said axial projection into the said orifice, that the said orifice is in the form of a single orifice or a plurality of orifices, can prevent progressive blocking of the said orifice with time, which can occur with some types of products, for example such as products that tend to dry or harden in contact with air.
All figures relate to the invention.
a is a partial perspective view of a dispenser-applicator (1).
b is an axial sectional view along the axial direction (10) of the said cap (5) and the said distribution head (4).
c is an enlarged partial view of
d is a bottom view of the said assembly (9).
a and 2b are similar to
a is a perspective top view of the said cap (5) and its outer shell (6).
b is a perspective top view of the said head (4, 4″) fixed to a portion of the body (3) of the receptacle (2).
a and 3b are views showing the said dispenser-applicator (1), in a partial axial section similar to that shown in
a corresponds to the embodiment in
b corresponds to another embodiment in which the said distribution head (4) forms a single piece part (4′) with the body (3), this assembly typically forming a tube open at its bottom so that it can be filled.
a and 4b illustrate the different parts forming the dispenser-applicator (1) in
a is a perspective view of the bottom and one side, while
a and 6b represent different embodiments of the orientation means (8), through diagrammatic side views of the male elements (80) and female elements (81) that cooperate during screwing of the said cap (5) onto the distribution head (4).
In
b shows the reverse case to the above; the inner insert (7) of the cap (5) carries the female element (81) in the form of 3 adjacent ramps with a “V-shaped” profile (810), while the skirt (46) supports 3 axial projections (71) forming the male axial element (8).
a to 7c show a diagrammatic view of the head (4) of
a shows the case of symmetry of rotation S1.
b shows the case of symmetry of rotation S2.
c shows the case of symmetry of rotation S4.
a to 8d show axial sections illustrating different embodiments of closing off the orifice (41, 42, 43, 430) by the said axial projection (71, 72, 73, 730).
According to one embodiment of the invention, the said orifice (41) may be composed of the said single orifice (42). As shown on the variants A, E, F, I, L, M and S in
According to another embodiment of the invention, the said orifice (41) may be composed of the said n orifices (43), where n varies from 2 to 12.
As shown in
The number n may be chosen as a function of the required effect during application of the product, possibly depending on the viscosity of the product to be applied.
According to the invention, the said single orifice (42) or the said n orifices (43) may have a symmetry of rotation SN with respect to the said axial screwing direction (10), where N typically varies from 1 to 8, a symmetry of rotation SN denoting identity of the object by rotation of 360°/N.
A symmetry S1 corresponds to the case in which the orifice (41) is arbitrary and does not have its own symmetry since a rotation of 360° is necessary to obtain the initial configuration. Examples of variants with order 1 symmetry S1 are A, B, F, G, H, J, P, R and T as shown in
The other variants in
As shown particularly in
Typically, the said male element (80, 44, 74) may comprise N typically vertical edges or radial projections (80′), and the said female element (81, 45, 75) comprises N “V-shaped” or funnel shaped ramps or profiles (810) with a tip (811) forming or including a typically vertical or axial groove or channel (812) such that during the said screwing, each radial edge or projection (80′) being guided by a ramp (810), one end (800) of the said axial edge or projection (80′) being guided towards the said tip (811) or the said axial channel (812), the said insert (7) is firstly oriented automatically with respect to the said head (4), and then the said single axial projection (72) closes off the said single orifice (42) or the said n axial projections (73) close off the said n orifices (43).
Thus, the same number N relates simultaneously to:
As shown in
Conversely, and as shown in
As shown in
As shown for example in
In this case, the said head (4″) may include an internal thread (471), typically carried by an inner wall (470) of the said head (4″) such that the said head (4″) may be fixed by screwing to any type of body (3) comprising a threaded neck (30), typically in a leak type manner due to a sealing lip (472).
In this case, the said independent part (4″), typically screwed to the said cap (5) but possibly click fitted, may be fixed to any type of receptacle provided with a neck, such as a tube, a flask or any other type of receptacle or similar receptacle body that can be filled through its neck (30) before the said independent part (4″) is screwed into place as a distribution head (4).
According to the invention and as shown particularly in
As shown for example in
According to the invention, the number N can vary from 2 to 6. It is important that the slope of the said ramp (810) is sufficient so that the end (800) of the male axial element slides on the ramp (810) and makes the inner insert (7) turn as the shell (6) is screwed onto the head (4).
This slope will also depend on the diameter of the said head, that typically varies from 10 mm to 60 mm.
The said “V-shaped” or funnel shaped ramp or profile (810) then typically forms an angle α equal to 120°±30°.
Typically, the said single orifice (41) may have a square section, or it may be square with rounded corners, hexagonal, octagonal, or it may be in the form of a straight or curved longitudinal slit, or cross-shaped slits, the said single axial projection (71) having a corresponding complementary shape designed to close off the said single orifice (41).
Similarly, the said n orifices (42) may include one or several orifices with a round or square section, or square with rounded corners, hexagonal, octagonal, or it may be in the form of a straight or curved longitudinal slit, or cross-shaped slits, the said plurality of axial projections (71) having a corresponding complementary shape designed to close off the said n orifices (42).
As shown in
As shown in
As shown in
As shown in
As also shown in
Typically, and as for example shown in
The said shoulder (49) may be axially facing the sidewall (76) of the said insert (81), and may have a radial width equal to at least the radial overlap ER between the said male axial element (80) and the said female element (81).
According to the invention, at least the said head (4, 4′, 4″) and the said inner insert (7) may be moulded thermoplastic parts.
Another purpose of the invention is composed of an element (9) of a dispenser-assembler (1) according to the invention including the combination of the said head (4) forming an independent part (4″) and the said cap (5), fixed by screwing to the said cap (5), the said assembly (9) being designed to be fixed to a receptacle body (3) with a flexible wall, typically a tube, typically by screwing.
Such an element is shown in
All
1—
The dispenser-applicator (1) in
The dashed lines in
b shows the said cap (5) and the said distribution head (4), these two screwed parts forming an assembly (9) that can be screwed onto any receptacle (2) comprising a body (3) and a threaded neck (30).
c is an enlarged partial view of
d is a bottom view of the said assembly (9).
2—
The said head (4, 4″) comprises a rounded top (49), in this case forming a curved arch, and an axial skirt (46).
The said rounded top (49) carries six circular orifices (430) instead of the single orifice (41), each provided with a peripheral rim (410) designed to massage the skin during application of the product. This plurality of orifices (43) comprises a central orifice surrounded by five orifices forming a regular pentagon, such that the said plurality of orifices (43) has an order 5 symmetry of rotation denoted S5, in which a rotation of 360°/5 with respect to the said axial direction (10) reproduces the same figure or arrangement of orifices (430).
The said axial skirt (46) comprises a shoulder (48) separating an upper part (460) of the said skirt (46) from a lower part (461), the said upper part (460) carrying a sequence of 5 “V-shaped” ramps for which the lower tip (811) located close to the said shoulder (48) forms an axial groove (812). This sequence of five ramps (810) that has the same symmetry S5 as the said plurality of orifices (43), forms the female element (81) of the said orientation means (8). The lower part (461) of the said skirt (46) carries the outer thread (40).
3—
4—
5—
The orifices (41) and corresponding axial projections (71) have symmetries of rotation as follows:
The number n of orifices is:
6—
In both of these two Figures, the cap (5) and its insert (7) have been shown in dashed lines above the said distribution head (4), the male element (80) and the female element (81) of the said orientation means (8) being shown facing each other before orientation.
7—
It should be noted that
8—
In these figures, the axial height H corresponding to the axial cooperation between the said orifice (41) and the said axial projection (71) are shown, this height H typically corresponding to the height of the said axial groove (812) enabling final axial displacement of the insert (7) sealing the said orifice (41), at the end of the cap screwing movement.
50 mm diameter caps were made.
Assemblies (9) with the same 50 mm diameter and 29.5 mm high were made, corresponding to the outside dimensions of the said shell (6), according to the embodiment shown in
The body (3) of the receptacle (2) was made using tubes and flasks with flexible walls.
Many variant orifices (41, 42, 43) were made as shown in
For a system with order 1 symmetry S1, the head diameter should be smaller than it would be if the symmetry were higher, to maintain a sufficient slope to the ramp (810).
Regardless of the variants or embodiments of the invention, the applicant has observed that it is easy to close off these orifices with the means according to the invention, such that they are always leak tight in the long term, without any risk of these orifices becoming progressively blocked.
It has been observed that directly closing each orifice makes it possible to have a head in which there are relatively few leaks of the packaged product.
It has been observed that the seal obtained by axial penetration of the said axial projection (71) in all or part of the said orifice (41) enables a cap opening and closing force (5) that varies little in the long term, and that is relatively small considering the excellent seal obtained.
Furthermore, the presence of rims (410) on the rounded top (49) of the said head (4), and particularly around the orifices, enables application of the packaged product accompanied by massage of the said support, and typically the skin when the said product is a cosmetic or dermatological product.
Number | Date | Country | Kind |
---|---|---|---|
04 01955 | Feb 2004 | FR | national |