EP2253553B1 - Shaft-shaped device for carrying a fluid - Google Patents

Abstract

The device has a container (8) provided for holding fluid. An application head (1) is connected with the container. A fluid permeable application body (3) is co-axially fixed on the application head on a side that is turned away from the container, whose outer diameter (A1) ranges from one by third to two by third of an outer diameter (A2) of the application head. The container protrudes co-axial to the application head without covering outwards. The application head is formed of sponge, fiber fleece or a brush. A covering cap (22) exhibits round, oval and triangular shaped cross section.

Description

The invention relates to a stick-shaped device for applying a liquid to a surface with a liquid receiving container and a container associated with the applicator gun, on the outside on the side facing away from the container, a liquid-permeable applicator body is coaxially attached, the liquid is supplied from the container wherein the outer diameter of the container is 1/3 to 2/3 of the outer diameter of the applicator head and that the container protrudes outwardly uncovered coaxially with the applicator head. US 2006/0285913 shows a device according to the preamble of claim 1.

They are applicators, see in particular the US 2006/0285913 , Claim 1, in the form of a tube containing a cosmetic or leather-treating liquid which release the liquid onto the surface through a sponge applicator head. The container of these known application devices has a relatively large volume and thus has relatively large external dimensions, so that the device is easy to grip by hand. For small amounts of a coating liquid, especially in the medical or cosmetic field, however, such a device is not usable.

Furthermore, from the WO 99/44904 a pin-shaped applicator known, with an inner tube, which emits adhesive in particular through a nozzle-shaped mouthpiece. A large-area spreading application is not possible.

The object of the invention is to improve a device with distributing sponge of the type mentioned so that with a small volume storage for the application liquid, the device by hand is easily and safely palpable. Moreover, it is an object of the invention to increase the functional reliability and handling accuracy with simple design and manufacture and the container interior comes into contact with the atmosphere only at the first use.

This article is achieved by the invention according to claim 1.

The applicator head has two coaxial disc parts rotatable relative to one another, each of which forms a passage channel for the fluid and the through-channel of the first disc part is closed by a closure, in particular a membrane, and the second disc part has an opening part, in particular a cutting edge, through which the closure in particular the membrane is open, wherein the two disc parts are connected to each other by a thread and mating thread, through which the disk parts approach each other in the relative rotation. This keeps the interior of the container closed until it is used and can be stored for a long time. This is especially important for medical and cosmetic products. Furthermore, such a construction is particularly small in construction and does not unnecessarily increase the length of the pin-shaped device. It is also advantageous if the container is externally surrounded by a cup-shaped cover coaxial whose outer diameter is equal to or less than the outside diameter of the applicator head, wherein between the container and the cap an empty annulus exists as a free space.

Despite small amount of storage and thus small container for the application liquid of the application head and the application body remote from the area of the pin-shaped device is easy and safe to grab by hand. The device can thus also contain small amounts of an active ingredient and is still handy.

The shape of the container is independent of the shape of the cap and thus can be arbitrary and thus easy and inexpensive to manufacture. But even the outer shape of the cap can be independent of the shape of the container, so that the outside of the cap can be designed arbitrarily. Thus, the outer shape of the cap can be designed so that it is adapted to the type of application liquid, so that it is already apparent from the outside, which application liquid releases the device. So z. B. the level of concentration of the active ingredient can be detected by the shape and / or color of the cap.

It is preferably proposed that the liquid is disinfectant for application to the skin of a human or animal. It is also suggested that the container extends within the cap over most of the cap interior.

Since the shape of the cap does not have to depend on the size and shape of the container, the cap may have a round, oval, triangular or quadrangular cross section with rounded longitudinal edges and in particular convex sides.

A further advantageous outer design of the cap is given when the cap tapers with increasing distance from the applicator head. As a result, the cap is not only shapely, but also good to grab by hand. For this purpose, it is also proposed that the cap has grip recesses on the outside.

It when the free space between the container and cap is sealed so far that a pressure by hand on the outside of the cap increases the pressure in the container and controls the discharge is particularly advantageous.

It is preferably proposed that the application body is formed by a sponge, a non-woven fabric or a brush.

It is also preferably proposed that the first disc part forms the top of the container. Furthermore, it is advantageous if, after the rotation and the opening of the closure, in particular of the membrane, the two disk parts are locked to each other inseparably. This ensures that after opening the first time, the passageway is not accidentally closed again.

The actuation of the first-time opening is facilitated if the rotatable disk part has a grippy annular outer side. It is also proposed that the permissible direction of rotation for opening the closure is displayed on the outside of the rotatable disk part, so that the type of handling is easily recognizable to the user.

In order to ensure that an excessive amount does not escape from the device during the application of the liquid, it is proposed that a metering valve be arranged as a surge brake within the application head in the through-channel. In this case, the metering valve may be formed by a coaxial insert part, which has a metering part, which partially closes the through-channel and opposes a resistance to the liquid flow. It is also advantageous if the metering part is movable by an increasing fluid flow in a direction in which the metering valve is opened further.

A particularly accurate application of the liquid is possible if the applicator body has a triangular shape with rounded corners and in particular convex sides in a cross section to which the device longitudinal axis is perpendicular. It is also preferably proposed that there is a thread between the application head and the container, in particular the container body facing the applicator body, through which the container is axially movable closer to the applicator head in order to open the container.

Fig. 1

einen axialen Schnitt durch die Vorrichtung bei noch geschlossenem Behälter,

Fig. 2

eine Außenansicht der Vorrichtung nach Fig. 1,

Fig. 3

einen axialen Schnitt nach III-III in Fig. 1 bei geöffnetem Behälter,

Fig. 4

einen axialen Schnitt durch den oberen Bereich des Auftragskopfes einer zweiten Ausführung mit Einsetzventil als Schwallbremse,

Fig. 5

das Einsetzventil in drei Ansichten,

Fig. 6

eine dritte Ausführungsform ohne Abdeckkappe mit geschlossenem Behälter,

Fig. 7

die dritte Ausführungsform ohne Abdeckkappe mit geöffnetem Behälter.

Advantageous embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it

Fig. 1

an axial section through the device with the container still closed,

Fig. 2

an outside view of the device according to Fig. 1 .

Fig. 3

an axial section of III-III in Fig. 1 with the container open,

Fig. 4

an axial section through the upper region of the applicator head of a second embodiment with insertion valve as a surge brake,

Fig. 5

the insertion valve in three views,

Fig. 6

a third embodiment without cap with a closed container,

Fig. 7

the third embodiment without cap with open container.

The pen-shaped applicator for liquids has an applicator head 1, which is designed cup-shaped, with a circular flat disc part 2, at the front of a job body 3 is fixed and a central coaxial through-channel 4 bridged in the applicator head 1. The disk-shaped, circular applicator body 3 has a constant thickness D and consists of an open-pore sponge, a non-woven fabric or a brush to distribute the emerging from the channel 4 liquid over its width and deliver its front when the applicator body 3 with its front pressed on a surface and painted over it.

On the back of the disk part 2 of the applicator head 1, a coaxial pipe socket 5 is formed, which forms the passageway 4. At its free end, the nozzle 5 forms cutting elements 6 in order to be able to cut a membrane 7 of the container when it is rotated relative to a container 8.

Further, at the back of the disc part 2 is a coaxial sealing ring 9 and a coaxial sleeve 10, wherein the diameter of the sealing ring 9 is larger than that of the nozzle 5 and the diameter of the sleeve 10 is greater than that of the sealing ring. In addition, a coaxial cylindrical wall 11 is formed on the outer edge of the disc part 2, whose size H is about twice as large as the height of the sleeve 10 and the neck of the fifth

On the front side of the device, the application body 3 is covered by a protective cap 12 which partially overlaps the wall 11 and forms a protected space in which the applicator body 3 lies.

The container 8 has an originally cylindrical outer wall, the lower edge 14 is compressed to form a straight band and thus closed. At the top, the applicator head 1 end facing the container 8 is closed by a circular end wall 15 which is disc-shaped with its circular outer edge coaxial rests in the applicator head 1 and is fixed on the inside of the wall 11.

The wall 15 forms a coaxial nozzle 17 which faces the applicator body 3 and which engages sealingly in the bushing 10 with an externally projecting annular region 18. In this case, the nozzle 17 is closed by the membrane 7, which has an annular coaxial thin point 19. The applicator body 3 facing annular end of the nozzle 17 is sealingly against the outside of the sealing ring 9.

The wall 11 of the applicator head 1 forms on the outside a handle ring 20 which can be detected by hand and by the applicator head 1 relative to the container 8 and its wall 15 is rotatable. In this case, the outer edge of the wall 15 moves in an internal thread of the wall 11, so that by the rotational movement of the handle ring 20 and the wall 11 relative to the container 8 and the wall 15 of the applicator head 1 moves axially relative to the wall 15 and thus the cutting element. 6 presses on the membrane 7 to open the membrane and thus the nozzle 17. After opening, the nozzle 17 remains sealingly in contact with the sealing ring 9, so that the passage 4 is sealingly connected to the passage 20 of the nozzle 17 and the liquid from the Container 8 can penetrate into the application body 3, without being able to escape laterally.

The applicator body 3 facing away from the applicator head 1, a cap 22 is disposed coaxially and secured with its upper edge 23 on the inside of the wall 11, wherein the upper edge 23 between the wall and a lower, on the outside of the wall 15 projecting annular integrally formed Edge 24 is present. Here, the cap 22 against the wall 15 and the container 8 is non-rotatable and rotatable relative to the wall 11 of the applicator head 1, so that by an external grasping the cap 22 of the container 8 can be held while the applicator head 1 rotates about the handle ring 20 becomes.

The cap 22 surrounds the container 8 so far that between the container and cap, there is a free space 25 which is sealed to the outside so far that a pressure on the outside of the cap increases the pressure within the container 8. The outer diameter A1 of the container 8 is in this case one third to two thirds of the outer diameter A2 of the applicator head or the cap 22, when the applicator head and cap have approximately the same outer diameter. The container 8 extends within the cap 22 over the greater part in its length and the cap 22 may have a round, oval, triangular or quadrangular cross section with rounded longitudinal edges and in particular convex sides.

The cap 22 may have a variety of shapes and in one embodiment, the cap tapers with increasing distance from the applicator head. So that the cap 22 can be gripped particularly easily, it has in one embodiment outside recessed grips. In the same way, the handle ring 20 may have outside recessed grids or corrugations or strung areas. So that the user knows in which direction he should turn the handle ring 20, arrows are mounted on this outside, indicating the direction of rotation.

In the in 4 and 5 illustrated embodiment, a metering valve 26 is mounted within the applicator head in the passage 4, which has a coaxial insertion part 27 which partially closes the passageway 4 to set a resistance to the liquid flow and thus serve as a surge brake. In this case, the metering part can be moved by an increasing liquid flow in a direction in which the metering valve is opened further.

The insert part 27 has wing-shaped parts 28, which form the resistance for the liquid and are limited by the liquid are bendable in order to achieve a further opening of the metering valve.

Instead of a circular shape, the applicator body 3 can also have another shape, in particular a triangular shape or an arrow shape, in order to be able to apply the application agent, which is preferably disinfectant, particularly precisely to the skin of a human or an animal.

The in the 6 and 7 illustrated third embodiment differs from the previously described in that the container 8 is not covered on the outside by a cap and thus is freely visible. Furthermore, in all embodiments, the protective cap 12 may be missing.

Claims (17)

1. Shaft shaped device for carrying a fluid onto a surface with a container (8) taking the fluid and a carrying head (1) connected to the container, on the outside of which on the side turned away from the container a carrying body (3), which allows the fluid to pass through, in the form of an open pore sponge is fastened coaxially, to which fluid from the container is fed, in which the external diameter (Al) of the container (8) is 1/3 to 2/3 of the external diameter (A2) of the carrying head (1) and the container (8) projects outwards uncovered coaxially to the carrying head (1), characterised in that the carrying head (1) has two coaxial disc parts (2, 15), which may be twisted in relation to each other, which each form a throughput channel (4, 21) for the fluid and the throughput channel (21) of the first disc part (15) is closed by a closure (7), particularly a membrane, and the second disc part (2) has an opening part (6), particularly a blade, through which the closure (7), particularly the membrane, is to be opened, in which both disc parts (2, 5) are connected to each other through a thread and counter thread, through which the disc parts (2, 15) come close together during the relative twisting.
2. Device according to claim 1, characterised in that the container is surrounded coaxially on the outside by a pot type covering cap (22), the external diameter (A3) of which is the same or insignificantly smaller than the external diameter (A2) of the carrying head (1), in which there is an empty annular space as a free space (25) between the container (8) and the cap (22).
3. Device according to claim 2, characterised in that the fluid is disinfected for carrying onto the skin of a person or animal.
4. Device according to claim 2 or 3, characterised in that the container (8) extends inside the cap (22) over most of the inside of the cap.
5. Device according to one of claims 2 to 4, characterised in that the cap (22) has a round, oval, triangular or rectangular cross section with rounded long edges and convex sides in particular.
6. Device according to one of claims 2 to 5, characterised in that the cap (22) narrows with increasing distance from the carrying head (1).
7. Device according to one of claims 2 to 6, characterised in that the cap (22) has serrated edges on the outside.
8. Device according to one of claims 2 to 7, characterised in that the free space (25) between the container (8) and the covering cap (22) is sealed so that pressure by the hand on the outside of the covering cap increases the pressure in the container and controls delivery.
9. Device according to one of the previous claims, characterised in that the first disc part forms the surface of the container.
10. Device according to one of the previous claims, characterised in that after turning and opening the closure, particularly the membrane (7), both disc parts (2, 15) are locked to each other permanently.
11. Device according to one of the previous claims, characterised in that the disc part (2), which may be twisted, has a ring shaped outside (20) that grips well.
12. Device according to one of the previous claims, characterised in that the permissible turning direction for opening the closure is shown on the outside (20) of the disc part (2), which may be twisted.
13. Device according to one of the previous claims, characterised in that a dosing valve (2, 6) is arranged as a surge brake in the throughput channel (4) inside the carrying head (1).
14. Device according to claim 13, characterised in that the dosing valve (26) is formed by a coaxial insert part (27), which partly closes the throughput channel as the dosing part and offers a resistance to the flow of fluid.
15. Device according to claim 14, characterised in that the dosing part (27) may be moved through an increasing flow of fluid into a direction, in which the dosing valve is opened further.
16. Device according to one of the previous claims, characterised in that in a cross section, to which the longitudinal axis of the device is perpendicular, the carrying body (3) has a triangular shape with rounded corners and convex sides in particular.
17. Device according to one of the previous claims, characterised in that between the carrying head (1) and the container (8), particularly the wall of the container (15) turned towards the carrying head (3), there is a thread, through which the container (8) may be moved axially closer to the carrying head (1) in order to open the container.

Images