JPH06154025A - Liquid coater sensitive to contact pressure - Google Patents

Abstract

PURPOSE: To provide a liquid applying device that is sensitive to contact pressure and permits the liquid in a vessel flowing through applicators only when a pressure is given. CONSTITUTION: The liquid applying device comprises vessel 1 for containing liquid and liquid applicators 8, 9 that are disposed airtightly onto the opening of the vessel. Adapter 2 is provided for slidably containing the applicators and constructing a liquid passage 10 that communicates with the opening of the vessel. Further, the passage forms valve seat 10a for close valve 11 mounted to the applicator so that the valve opens when the applicator is pressed to the close position of the valve by elastic means 13 and the applicator bears pressure as resisting the elastic means.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to applicators for liquids which are sensitive to contact pressure.

[0002]

BACKGROUND OF THE INVENTION Liquid applicators generally include a container adapted to receive the liquid and an applicator for spreading the liquid by contact. Such instruments are especially
It is used in the cosmetic or pharmaceutical field for skin application, but also in the field of liquid waxes, stain removers or other care products.

For example, an applicator has a
And, optionally, by a porous contact element that allows the liquid product to penetrate after applying pressure to the container. The present inventor has studied a device capable of communicating a liquid in a container with the applicator only when pressure is applied to the applicator,
I thought up.

In such a manner, the liquid can only be spread during use and the container will automatically close in a gastight manner when pressure is removed. Such devices also have the enormous advantage of being able to use volatile products such as essential oils, alcohols and the like.

[0005]

The invention is based on the fact that the applicator according to the invention comprises a container which can be of any type of glass, metal or plastic, and likewise a usual type of applicator as will be explained later. It is essentially related to the part of the applicator that can be used.

[0006]

In practice, an applicator according to the invention is provided to be hermetically attached to an opening in a container, to slidably receive an applicator, and to provide a liquid passageway in communication with the opening in the container. Provided adapter, while
The passage forms a valve seat for a closure valve attached to the applicator, the elastic means forcing the applicator towards the closed position of the valve,
The valve is characterized in that it opens when the applicator receives pressure against the elastic means.

The applicator has a contact element arranged in the support, the support being slidably mounted in the adapter,
The valve is preferably fixed to the support.

According to one embodiment, the valve is extended by a central mandrel extending towards the applicator, said mandrel leading centrally towards said applicator and having at least one lateral opening so as to be in the open position. By means of a central borehole which opens laterally in the vicinity of the valve, liquid can flow between the valve and the valve seat and then through the lateral opening and the central borehole until it reaches the applicator.

In this case, the passage of the adapter for the liquid is formed by a tubular conduit in which the end directed towards the container constitutes the valve seat of the valve, in which said valve is movably mounted, Advantageously, the mandrel further comprises at least one lateral groove provided longitudinally to form the ventilation passage.

The elastic means is, for example, a coil spring, which is supported between the adapter and the applicator and is arranged around the tubular conduit. Sliding of the applicator is limited, for example, by closing the valve against its valve seat and opening it upon encounter with a portion of the applicator and a portion of the adapter.

In a particularly non-limiting embodiment, the contact element is perforated centrally, while its peripheral edge forms an annular bottom plate with folding edges, on the inside it receives a corresponding part of the porous body and on the outside it It is characterized in that it is in the form of a porous body fixed in a cap-shaped support adapted to slide in a combination housing provided in the adapter. The invention and other features will be more apparent from the description made below with reference to the accompanying drawings.

[0012]

DETAILED DESCRIPTION FIG. 1 shows a container 1 in which an adapter 2 is airtightly fixed. In the embodiment of FIG. 1, the container 1 has a neck 3, but this structure is not compulsory, as seen in the embodiment of FIGS. 4 and 5.

The adapter 2 of FIG. 1, which is screwed onto the neck 3 by means of a threaded insert 4, has a neck 5 by means of a crown 5.
Surrounding the upper part of the container, the crown 5 is a side fold 6 directed towards said container and an externally threaded ring 7 extending in the opposite direction.
Is equipped with. The spigot 4 further comprises a tubular extension 4 ′ in the opposite direction of the neck 3 and an inner ring 4 ″ for entering the neck 3.

The annular space closed by the inner wall of the ring 7, the outer wall of the insertion part 4 and the crown 5 is an annular storage part in which the applicators (8, 9) are slidably mounted. The applicator (8, 9) here comprises a support 8 and a contact element 9. In the embodiment of FIG. 1, the support 8 has the shape of a cap 8a with an annular peripheral bottom plate 8b with a folding edge 8c.

It will be understood how the applicators (8, 9) are slidably mounted in said housing of the adapter, the outer wall of the edge 8c being in contact with the inner wall of the ring 7, while
The upper part 8a of the support part 8 covers the plug-in part 4 and its extension 4 ', and a longitudinal sliding rib or, in some cases, conversely, a peripheral airtight rib is additionally provided between at least some contact surfaces. it can.

The downward sliding of the support 8 is provided on the support 8 and comes into contact with the thin end of the ring 7 shoulder 8
Limited by d. However, this movement can also be limited by the crown 5 forming a stop for the annular bottom plate 8b of the support 8.

The cap-shaped part of the support part 8 has an inner skirt part 8e which is perforated in its center, while the adapter 2 is in its center part coaxial with the neck 3 of the container and communicates with it. A tubular conduit 10 for The end of the tubular conduit 10 which is directed towards the container forms the valve seat (conical part) for the valve 11 of the combined shape.

The valve 11 has a mandrel 12 which extends in the tubular conduit in the opposite direction of the container and is hooked by its end 12a in the skirt 8e of the support 8. Thus, the end 12a of the mandrel 12 has a hook 12'a and an elastic tear 12'b.

The mandrel 12 further traverses the central boring hole 12b leading to the applicator and the boring hole 12b.
It has a diametrical opening 12c provided near the valve 11. The mandrel 12 also has two lateral longitudinal grooves 12d,
It has 12e and is used as a ventilation path (FIGS. 1 to 3).

Compared to FIG. 1, in FIG. 2 the cross section of the valve is the line of FIG.
II-II, while in FIG. 1 the cross section of the valve is clearly 9 when the opening 12c is moved from FIG. 1 to FIG.
It is shown according to line I-I as offset by 0 °.

Around the tubular conduit 10, a coil spring 13 is arranged, one of which is in contact with the adapter 2 and the other of which is in contact with the cap 8a of the support portion. Coil spring 1
3 tends to separate the support 8 from the adapter 2 and thus pushes the valve 11 against the valve seat 10a of the tubular conduit 10, said valve limiting the stroke and supporting the applicator (8, 9). Therefore, in the rest position, the valve 11 is moved by the coil spring 13 towards the position shown in the left part of FIG. 1, the closed position.

On the contrary, as soon as pressure is applied to the contact element 9, it contacts the valve 11 as shown in the right part of FIG. 1 with the shoulder 8b towards the open position as already mentioned. Attract and approach the adapter 2 until the mandrel 12 moves into the tubular conduit 10 and stops.

The illustrated applicator further comprises a lid 14 (FIG. 1) arranged to be screwed onto the threaded portion of the ring 7 of the adapter 2. Therefore, the contact element 9 cannot be inadvertently pressed.

The contact element 9 can be made of porous solid or sponge-like material or the like, as will be explained in more detail below. In the embodiment of FIG. 1, the contact element 9 has, of course, also a cap shape, and a small space 15 is provided between this contact element 9 and the upper part of the cap 8 a of the support part 8. The bottom of the contact element 9 is
It can be seen in FIG. 1 that it is fixed in the annular trough of the support 8 formed by a, 8b and 8c.

Modifications or supplements may, of course, be made, particularly with regard to hermeticity, without departing from the scope of the invention. For example, it can be seen that the skirt 8e of the support 8 forms a closure valve, said closure valve for closing the space between the valve stem 12 and the tubular conduit 10 in the valve's maximum open position. Work with the corresponding ends of the two tubular conduits 10 (the skirt 8e may be extended). It will be appreciated that the manufacture of such a device is particularly simple and does not require any fixing supplementary means.

In addition to the container, in fact, such an applicator has an adapter 2, a contact element 9 and its support 8, a valve 11 with a spring 13 and a mandrel 12, the valve being as previously described. Guarantee one of the limits of the stroke and hold the whole with a simple hook. For example, a simple installation consists of hooking the valve mandrel after positioning the applicator and spring, and after screwing the lid, then filling the container and then mounting it entirely in the container.

It is easy to use. As already explained, the valve 11 closes the container 1 in a gas-tight manner at rest. Instead, as soon as pressure is applied to the contact element 9, the valve 11 disengages from its valve seat 10a, the air flows through the air passages 12d, 12e, and when the liquid is inverted the applicator set, said valve and valve are closed. You can pass between the seats. The liquid then has a diametrical opening 12c. Then mandrel 1
The cap 8a for allowing the contact element 9 used for spreading the liquid product to penetrate into the central bore hole 12b of the second cap 8a.
It is possible to flow until the small space 15 is filled by passing through the opening.

As soon as the force is reduced, the valve 11 returns to the open position. As already mentioned, the contact element 9 can take various forms. In the embodiment of FIGS. 4 and 5,
Container 1 ', 1 ", adapter 2', 2", tubular conduit 1
0 ', 10 ", valves 11', 11" and their mandrels 12 ', 1
2 ", the springs 13 ', 13" and the supports 8', 8 "for the contact elements 9 ', 9" can be seen.

In these alternative embodiments, there is no neck of the container, and thus various shaped adapters 2 ', 2 ".
Emphasis on (eg without threaded inserts) is useless. The valve and its mounting are also slightly improved in these two other embodiments (valve mandrel 12 ', 12 "with shoulder 16 and mounting groove 17).

Instead, a very different contact element 9 '
And 9 "and thus different supports 8 ', 8". In FIG. 4, the contact element 9'has a hemispherical support 8 '.
It is a large ball that can rotate inside. In FIG. 5, the contact element 9 ″ is further formed by a plurality of small balls which are held by the cross member 18 and rest on the cushioning element 19.

[Brief description of drawings]

FIG. 1 shows a closed position and an open position on one side,
The figure which shows one Embodiment of the applicator by this invention.

2 is a more accurate and magnified line II of FIG. 3 of the valve of FIG.
-II sectional drawing.

FIG. 3 is a top view of the valve of FIGS. 1 and 2.

FIG. 4 is a diagram of another embodiment shown as in FIG.

FIG. 5 is a view of yet another embodiment.

[Explanation of symbols]

 1 Container 2 Adapter 3 Neck 4 Threaded Insertion Part 4'Tubular Extension of Insertion Part 4 4 "Inner Ring 5 Crown 6 Side Folding Part 7 External Threaded Ring 8 Support 8a Support 8 Cap 8b Same Circular Perimeter Bottom plate 8c Same folding edge 8d Same shoulder 8e Same skirt 9 Contact element 10 Tubular conduit 10a Valve seat 11 Valve 12 Mandrel 12a of valve 11 End of mandrel 12 12'a Hook 12b Same counterbore 12 ' b Same tear 12c Same diameter opening 12d, 12e Same side longitudinal groove (ventilation path) 13 Coil spring 14 Lid 15 Small space 16 Shoulder 17 Mounting groove

Claims (8)

[Claims] 1. A liquid applicator comprising a container (1) adapted to receive a liquid and having a liquid applicator (8, 9), the applicator (8) being hermetically attached to the opening of the container. , 9) are slidably received and provided with an adapter (2) provided to form a liquid passage (10) in communication with the container opening, while said passage is attached to the applicator. A valve seat (10) for the closing valve (11)
a) forming a), characterized in that the elastic means (13) pushes the applicator towards the closed position of the valve, the valve opening when the applicator receives pressure against the elastic means. vessel. 2. The applicator has a contact element (9) arranged in the support (8), the support (8) being slidably mounted in the adapter (2) and the valve (11) being An applicator as claimed in claim 1, characterized in that it is fixed to the support (8). 3. A valve (11) is extended by a central mandrel (12) extending towards the applicator (8, 9), said mandrel (1).
2) has a central borehole (12) which leads centrally towards the applicator (8, 9) and laterally in the vicinity of the valve by at least one lateral opening (12c) in the open position.
b), the liquid passing between the valve (11) and the valve seat (10a), then the lateral opening (12c) and the central borehole (1).
Applicator according to claim 1 or 2, characterized in that it can flow in 2b) until it reaches the applicator (8, 9). 4. A passage for an adapter for liquid is a container (1).
The end directed towards the comprises the valve seat (10a),
4. Applicator according to claim 3, characterized in that the mandrel (12) of the valve is formed therein by a movably mounted tubular conduit (10). 5. The applicator according to claim 4, characterized in that the mandrel (12) of the valve (11) has at least one lateral groove provided longitudinally to form a ventilation passage. 6. The elastic means is a coil spring (13) which is supported between the adapter (2) and the applicator (8, 9) and is arranged around the tubular conduit (10). The applicator according to claim 4 or 5. 7. The sliding movement of the applicator (8, 9) results in a valve seat (10).
Limited by the closing by the valve (11) pressed against a) and the opening by the encounter with a part (8d) of the applicator (8, 9) and a part (7) of the adapter (2). The applicator according to any one of claims 1 to 6, characterized in that: 8. A contact element (9) is perforated in the center,
On the other hand, the peripheral edge of the annular bottom plate (8) has a folded edge (8c).
b), which on the inside receives the corresponding part of the porous body (9) and on the outside slides in the combination housing (4, 5, 7) provided in the adapter (2). 8. Applicator according to any one of claims 2 to 7, characterized in that it is in the form of a porous body (9) fixed in a cap-shaped support (8).