EP1761342A1

EP1761342A1 - Distributor cap

Info

Publication number: EP1761342A1
Application number: EP05744152A
Authority: EP
Inventors: Herbert Berger
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-25
Filing date: 2005-04-21
Publication date: 2007-03-14
Also published as: WO2005115635A1; AT7801U3; AT7801U2; US20070158474A1

Abstract

The invention relates to a distributor cap (1) for cartridges, cans or tubes for the preservation and dosed distribution of highly viscous substances, particularly liquids such as adhesives, sealing materials, foaming plastics or similar, via a dosing head. According to the invention, a tubular add-on part (3) is arranged on one end of a base tube part (2) at an angle of <180°, preferably <135°, and connected to a conical dosing spout (6) via a ball-and-socket joint.

Description

Ausqabeaufsatz

The invention relates to a dispensing attachment for cartridges, cans or tubes for the storage and metered delivery of highly viscous substances, in particular liquids such as adhesives, sealing material, foaming plastics or the like, via a nozzle head.

Dispensing attachments of this type are used in private households and in the commercial sector, in particular in the construction industry. Dispensing attachments are known from the prior art, which are either non-detachably connected to the container in which the material to be discharged is located or, if necessary, are plugged or screwed onto a corresponding container.

In addition to the commercially available one-part, tapered shape, two-part or multi-part dispensing attachments are known. Either the part of the attachment facing the container is equipped with a flexible intermediate piece, or the parts are connected via a joint, so that the orientation of the end part, the nozzle head, from the tip of which the material is discharged via an opening, is adjustable. Areas that are difficult to access, such as undercuts or interior corners, should also be accessible.

DE 296 00 052 U1 describes a container with a nozzle device in which an extension part with a flexible section is inserted between the container and the end nozzle. The flexible section is designed in the shape of a bellows, so that the rigidly designed nozzle placed on the extension part can be pivoted.

DE 202 15 931 U1 describes a two-part dispensing attachment, the parts of which are connected to one another in such a way that the angle between their longitudinal axes can be varied by moving the parts against one another. In one embodiment, the two parts are mutually inclined in one plane to their respective longitudinal axes

C0NFIRMATI0N C0PY rotatable. Another embodiment provides for the connection of the two parts via a ball joint.

However, the problem with the dispensing attachments known from the prior art is that twisting or pivoting the nozzle head in order to obtain an angle between the respective longitudinal axes of the attachment parts <180 ° only results in an angular adjustment of a maximum of 90 °, in some cases less than 45 °, allow. In contrast, the high mobility of the bellows-like intermediate pieces or the joints causes the nozzle head, which is initially aligned in a desired position, to snap back into its starting position due to the pressure under which the material to be dispensed is expelled. A reset of the nozzle head must be prevented.

It is therefore an object of the present invention to provide an improved dispensing attachment which is flexible, easy to handle and inexpensive to manufacture.

This object is achieved by an output attachment according to claim 1, wherein according to the invention a pipe extension piece is arranged at an end of a base pipe part at an angle <180 °, preferably <135 °, which is connected via a ball joint to a conical metering nozzle.

According to a preferred embodiment, the pipe extension piece and the base pipe part form an angle (o), σ = 90 ° with one another.

The arrangement of the pipe extension on the base pipe part at an angle (a), σ = 90 °, and the connection of the dosing nozzle with the pipe extension via a ball joint allow the angle between the longitudinal axis of the base pipe part and the longitudinal axis of the dosing nozzle to be <90 °. An angle between 45 ° and 135 ° is preferably adjustable. This creates great flexibility in the alignment of the metering nozzle, so that even areas that are difficult to access, for example cavities between the masonry and the door frame, can be easily reached. In addition, the arrangement of the pipe extension on the base pipe part at an angle (a), σ = 90 ° causes a change in the flow direction. The material to be dispensed is pressed in the attachment area of the pipe attachment piece onto the base pipe in the direction of the longitudinal axis of the pipe attachment piece, so that the tendency of the metering nozzle to reset is counteracted.

According to an embodiment described and preferred in the subclaims, the ball joint has a part-spherical connecting piece which is overlapped by a hollow body which is adapted to the part-ball diameter. A high frictional resistance between the partially spherical nozzle and the adapted hollow body ensures that the aligned dosing spout does not spring back into its starting position parallel to the longitudinal axis of the pipe extension. However, if the frictional resistance is too high, the joint becomes stiff and handling is consequently made more difficult.

In a further preferred embodiment, the partially spherical outer jacket of the connecting piece or the partially spherical inner wall of the hollow body of the ball joint therefore has individual knobs or ribs. This results in a reduction in the frictional resistance while at the same time optimizing the frictional engagement.

The dispensing attachment is preferably made of plastic, and the individual parts are preferably produced by injection molding. The manufacturing costs remain low, so that the dispensing attachment according to the invention can be offered inexpensively in retail for single use.

So that a used dispensing attachment can be replaced quickly, the free end of the base tube part has an internal thread which is suitable for screwing onto the external thread of a commercially available cartridge, can or tube. With different thread diameters it is necessary to insert an adapter. In a preferred embodiment, the dispensing attachment according to the invention can be connected to the specified dispensing attachment of a foam gun via an adapter which can be pushed onto a pipe section. The fact that the specified essay on the Foam gun can remain, a commercially available foam gun can be quickly and easily retrofitted with an output attachment according to the invention.

The material is usually dispensed via an dispensing attachment via an opening in the tip of the nozzle head. Either there is already an opening in the nozzle head or the user cuts off the foremost area of the tip before use, the size of the dispensing opening being determined by the position of the cut.

Another embodiment of the dispensing attachment according to the invention provides, in addition to or instead of the usual central opening, a plurality of openings or perforations spaced apart from one another in the outer jacket of the metering nozzle. These are created as closed predetermined breaking points and can optionally be disclosed. The user can thus expose the desired openings by pressing in the lateral surface at the corresponding predetermined breaking points. The number of openings or the intended breaking points is arbitrary. Depending on requirements, a corresponding number of openings at the predetermined breaking points are uncovered by pressing them in. The arrangement of the holes in the outer jacket of the dosing nozzle is also variable. They are preferably arranged in a ring or in the longitudinal direction along the outer jacket of the metering nozzle. Openings or predetermined breaking points are provided in different sizes and shapes in order to create versatile uses for the dispensing attachment according to the invention. In addition, the openings can also have an elliptical or oval, or a triangular, rectangular or diamond-shaped cross section instead of a round one. A combination of openings or predetermined breaking points of different sizes and shapes is preferably evenly distributed over the outer jacket of a metering nozzle.

It is also advantageous here that several openings or openings in the nozzle head not only increase the dispensing speed, but also ensure an even distribution of the substance, since the material or the substance is dispensed into the space to be filled simultaneously in several directions. In addition to the openings or predetermined breaking points arranged laterally in the jacket piece of the dosing spout, which make the dispensing attachment usable in a variety of ways, it can also be used in a known, conventional manner by cutting off the tip. For this purpose, the metering nozzle is usually cylindrical or conical in shape and consequently has a round cross section. In the context of the present invention, however, a dosing nozzle can also have an oval, elliptical or angular cross section. In addition, the tip of the nozzle of the metering nozzle can also be rounded or frustoconical. A corresponding design of the nozzle head tip enables more than just an opening in the area of the tip.

In a preferred embodiment, the openings on the jacket piece are evenly distributed in a ring. The angular spacing (σ) of the openings depends on the number (n), σ = 360 n.

In a further embodiment, the perforations are arranged in multiple rings one behind the other and also offset.

Depending on the container, the dispensing attachment according to the invention is attached, clamped or screwed on. For this purpose, it has either an internal thread or a profiling at the end opposite the tip, which corresponds to a receiving part of a screw or plug connection on the respective container.

For areas that are behind and therefore difficult to access or very deep gaps, the dispensing attachment is plugged or screwed onto a tubular or tubular extension piece and this in turn onto the container. According to this embodiment, conventional dispensing attachments can also be retrofitted by fitting an dispensing attachment according to the invention.

Furthermore, the easily detachable connection of the dispensing attachment to the container enables a quick and uncomplicated exchange of the attachment, so that an attachment with annular openings can be exchanged for a dome-shaped attachment in the tip as required. In the context of the present invention, the dispensing attachments or dispensing spouts can also be curved, for example like the handle of an umbrella, in order to also allow extreme angular positions of the tip of the nozzle. According to the invention, an output attachment in a corresponding shape and size with the corresponding openings and / or predetermined breaking points is conceivable for each application.

Embodiments of the invention are shown in the following drawings. Show it:

Fig. 1 is a view of a dispensing attachment according to the invention, above a cross section through the front region of the metering nozzle shown

Fig. 2 u. 3 each shows a partial sectional view of an output attachment according to the invention with different ball joint designs

Fig. 4 is a partial view of a commercially available foam gun with an adapter attached

5 is a sectional view of a foam gun with hose extension and a dispensing attachment according to the invention,

6 three views of different nozzle head designs,

7 shows a longitudinal section through a container with a dispensing attachment according to the invention, a cross section above it through the dispensing attachment,

8 view of an output attachment, a schematic cross section above,

9 view of an output attachment,

Fig. 10 partial view of a foam gun with hose extension and a dispensing attachment according to the invention and

11 use of an output attachment according to FIG. 10

The dispensing attachment 1 shown in FIG. 1 has a slightly tapered base pipe piece 2, to which a cylindrical pipe attachment piece 3 is connected at an angle (σ), σ = 90 °. The cylindrical tubular extension piece 3 has a part-spherical connecting piece 4, which is overlapped by a hollow body 5 adapted to the partial ball diameter and together with the connecting piece 4 forms a ball joint. The The hollow body 5, which is adapted to the partial spherical diameter, is part of a conical metering nozzle 6. For the material discharge, the metering nozzle 6 has an opening 7 in the tip, as well as four equally spaced lateral openings 7 corresponding to the cross section shown schematically in FIG. The diameter of the openings 7 is 2 mm.

The base tube 2 has at its free end a cylindrical base-like section 8 with an internal thread 9. The dispensing attachment 1 can be screwed onto the external thread of a container (not shown) or an adapter 15 via the internal thread 9.

Figures 2 and 3 show different embodiments of the ball joint that connects the dosing nozzle 6 with the pipe extension 3.

FIG. 2 shows a ball joint consisting of a part-spherical socket 4 and an overlapping hollow body 5 adapted to the part-sphere diameter, the part-spherical outer jacket of the socket 4 having individual knobs 10. The embodiment of the ball joint shown in FIG. 3 differs from the shape shown in FIG. 2 in that the partially spherical connecting piece 4 has individual grooves 11 instead of the knobs 10.

FIG. 4 shows a partial view of a commercially available foam gun 12 with an attached foam can 13, as well as a pipe section 14 connected to the foam gun, which carries an adapter 15. The adapter 15 has an external thread 16 which corresponds to the internal thread 9 of the dispensing attachment 1 according to the invention from FIG. 1. The dispensing attachment according to the invention can thus be placed in a simple manner on a commercially available foam gun.

The dispensing attachment 17 shown in FIG. 5 has a cylindrical and a conical section. The lower region of the cylindrical section has an external thread 18, by means of which the dispensing attachment 17 is inserted into a hose 20, which in turn is connected to a foam gun 19. According to the invention, the dispensing attachment has openings 25 arranged in a ring in the nozzle head and evenly distributed on the cylindrical upper section. The through The diameter of the cylindrical section of the attachment is 8 mm, the diameter of the openings or openings is approximately 3 mm.

Figure 6 shows an example of three variants of the nozzle head design. Instead of the conical section according to FIG. 5, the tip can also have a round, frustoconical shape 22 or a finger 23. The openings 25 are distributed according to the shape 21 over the dome-shaped curve and / or in the shape 23, the foremost nozzle head tip has an opening.

FIG. 7 shows an output attachment 17 with an internal thread, which is screwed onto a container 24. In its cylindrical jacket piece, the nozzle head has four openings 25 or openings from which the material in the container 24 is dispensed. As can be seen from the cross section, the four openings are distributed so that they are each at the same distance from each other. Instead of four annularly distributed openings, three openings according to FIG. 8 and / or an opening in the nozzle head tip according to FIG. 9 can also be provided.

FIG. 11 shows the use of a foam gun shown in FIG. 10 with a dispensing attachment 17 according to the invention. Because of the tubular extension 20 and the narrow shape of the dispensing attachment 17, the nozzle head 26 also enters narrow and backward spaces, for example here, into the joint between a wall 27 and the frame of a window 28.

The dispensing attachments 17 shown in FIGS. 5 to 11 can also be used according to the invention on tubular extensions which have no ball joint. reference numeral

1 dispenser

2 base tube

3 pipe extension

4 partially spherical nozzles

5 hollow bodies

6 dispensing spouts

7 opening

8 socket-like section

9 internal thread

10 knobs

11 grooves

12 foam gun

13 foam can

14 pipe section

15 adapters

16 external threads

17 dispenser

18 external threads

19 foam gun

20 hose

21 round tip

22 frustoconical tip

23 finger-shaped tip

24 containers

25 opening, opening

26 nozzle head

27 wall

28 windows

Claims

Expectations

1. dispensing attachment (1) for cartridges, cans or tubes for the storage and metered delivery of highly viscous substances, in particular liquids such as adhesives, sealing material, foaming plastics or the like, via a nozzle head, characterized in that a pipe extension piece at one end of a base pipe part (2) (3) is arranged at an angle <180 °, preferably <135 °, which is connected via a ball joint to a conical metering nozzle (6).

2. Output attachment according to claim 1, characterized in that the pipe extension piece (3) and the base pipe part (2) form an angle (σ), σ = 90 ° with one another.

3. Dispensing attachment according to claim 1 or 2, characterized in that the ball joint has a part-spherical socket (4) which is overlapped by a hollow body (5) adapted to the part-spherical diameter, the part-spherical outer jacket of the socket (4) or the part-spherical inner wall of the Have hollow body (5) individual knobs (10) or ribs (11).

4. Dispensing attachment according to one of claims 1 to 3, characterized in that the free end of the base tube part (2) has an internal thread (9) which is designed for screwing onto a tube or onto the external thread (16) of an adapter (15) which can preferably be connected to the dispensing attachment of a foam gun (12) via a pipe section (14).

5. Output attachment according to one of claims 1 to 4, characterized in that all parts consist of plastic and are preferably injection molded parts.

6. Dispensing attachment according to one of claims 1 to 5, characterized in that the nozzle head of the metering nozzle (6, 17) has a plurality of spaced-apart openings (7, 25) for the material outlet.

7. Output attachment according to claim 6, characterized in that the openings (7, 25) are designed as closed predetermined breaking points in the original state, which can optionally be disclosed.

8. Dispensing attachment according to claim 6 or 7, characterized in that the openings (7, 25) are arranged in a conical or cylindrical casing piece of the metering nozzle (6, 17).

9. Output attachment according to claim 8, characterized in that the angular distance (β) of the lateral openings (7, 25) depending on the number (n), /? = 360 n and / or their diameter is 3 to 4 mm.