CH677457A5 - Vessel adaptor to discharge unit - has locking member preventing or allowing distortion of elastic portions - Google Patents

Abstract

The adapter secures a vessel (6) to a discharge unit (8), the vessel having a valve (10) enclosed by a connecting component (12). It has a cylindrical body (1) with central hole and works with a first connecting portion (5) joining it to the unit, and a second one (7) with protrusion acting against the valve. The component (12) engages in a recess (14) to secure the vessel to the body, actuating the valve at the same time. The second connecting portion (7) has elastic distorting sections (15) enclosing the component (12), and which can be engaged with it. A locking member (2) bears in a first position (A) against the distorting portions and prevents them distorting, while forming a solid connection between component (12) and second portion (7). In a second position (8) it is outside the distorting portions, allowing their distortion and forming a loose connection between component and portion (12,7). ADVANTAGE - Easy vessel replacement.

Description

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description

The present invention relates to an adapter for connecting a container to a dispensing device, which container has a valve and is provided with a connection element surrounding the valve and which adapter has a substantially cylindrical body with a through hole in the center, which on the one hand has a first connection section to to fix the adapter to the dispensing device and, on the other hand, has a second connection section with a projection which interacts with the valve, and with a recess into which the connection element can be inserted in order to connect the container to the body while simultaneously actuating the valve.

Such an adapter is used to attach the pressure container to a spray device. The adapter is connected on the one hand to the spray device and on the other hand has a connection section into which the container can be inserted. The container has a valve and a connecting element which is arranged on the edge of the container. The adapter has an extension which interacts with the valve and a recess which is adapted to the connection element and into which the connection element can be inserted and the valve is opened at the same time.

Such adapters have the disadvantage that the material emerging during use between the attachment of the adapter and the valve of the container can result in a compact connection between the connection element on the container and the connection section on the adapter, so that the container is difficult to detach

The aim of the present invention is to improve an adapter in such a way that an interchangeable adapter is created in which, on the one hand, a rigid connection enables a fixed connection and, by means of an elastic connection, easy removal.

The solution to this problem is defined in the characterizing part of claim 1.

The advantage of the invention lies in the solution of the sticking which occurs in the known adapters as a result of contamination, which in particular improves the handling of the spraying systems substantially.

Advantageous embodiments of the invention result from the dependent patent claims.

The invention is explained in more detail below with reference to the accompanying drawings.

Show it:

1 is a perspective view of a preferred embodiment of the adapter according to the invention,

2 is a plan view of the security member shown in FIG. 1,

Fig. 3 is a section along the line III-III in Fig. 2, and

Fig. 4 shows a partial section of an adapter with an inserted container.

The adapter shown in FIGS. 1 to 4 mainly consists of an essentially cylindrical body 1, a safety element 2 and a check valve 16,

The body 1 has a first connection section 5 for mounting the adapter on a dispensing device 8, a second connection section 7 for connecting an aerosol can 6 and a through hole 9 in the center,

The aerosol can 6 has a quick-closing valve 10 and an edge 11 which surrounds the valve. A connection element 12 is arranged on this edge. This connection element 12 has an external thread and is designed as described in DE-A 3 518 627, so that a detailed description is dispensed with. This connection element 12 can also be designed as a one-piece threaded ring which is placed on the edge 11 of the aerosol can 6

As FIG. 4 shows, the first connection section 5 is an extension with a hexagonal cross section and an internal thread.

The second connection section 7 has an extension 13, which is arranged coaxially to the through hole 9 and cooperates with a quick-closing valve 10 which can be inserted into the hole 9, an annular recess 14 in which the connection member 12 lies when the aerosol can 6 is connected, and an edge section which in three uniform sections

15 is divided. These sections are designed as threaded jaws, the internal thread being matched to the external thread of the connecting element 12. In this approach there is a check valve

16 screwed in. The approach is dimensioned such that when the valve is screwed in, a section thereof protrudes from the approach and is used to connect the adapter to the dispensing device.

The securing element 2 is designed as a flat ring with two diametrically arranged and radially projecting tabs 17. In the area of these tabs 17, sections formed by flattening are provided on the inner edge of the ring, the design of which can be seen in FIG. 3 and whose task will be explained later.

The function of the adapter is explained with the aid of FIG. 4, which shows the adapter with the container inserted. It is assumed here that the adapter is mounted on the application device 8. In the present case, the aerosol can 6 is assembled by screwing. For this purpose, the securing element 2 is arranged in a first position “A”. In this position A, the securing element 2 encloses the three threaded jaws so that they do not deform outwards, i.e. can be bent. As a result, the three threaded jaws act like a rigid section with an internal thread, which here forms the second connection section 7

In this section, the aerosol can 6 provided with the connection member 12 is screwed in while the valve 10 is opened. The dispensing device 8 is thus ready for operation.

In order to remove the empty aerosol can 6 from the adapter, the securing member 2 is moved into a second position “B”. In this position

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the securing member 2 outside the threaded jaws on the body 1 of the adapter. As a result, the threaded jaws can be bent outwards with respect to the body 1 by tilting the aerosol can 6 in order to loosen the connecting element 12 which may have been glued by material escaping from the valve 10 and to unscrew or even pull it out.

This function presupposes that the body 1 consists of a material that allows the elastic deformation of the threaded jaws. Plastic, rubber or similar materials can therefore be used as the material for this. As a further measure, there is the possibility of designing the transition area between the threaded jaws and the other part of the body 1 as a desired bending point 23 (FIG. 4). The securing member 2 can be made of plastic, e.g. Polyethylene, polypropylene, etc., rubber, metal or other suitable material.

In order to avoid that the securing element 2 is inadvertently displaced when the aerosol can 6 is screwed in, the threaded jaws each have an edge 20 projecting outwards and a collar 21 projecting outwards. Furthermore, a security against loss is provided, which is designed in the form of an edge 22 on the body.

In addition to the embodiment described above, the securing element can also be designed as a threaded ring with an internal thread. In this case, the bead 21 can be omitted.

Claims (10)

Claims 1. Adapter for connecting a container (6) with a dispensing device (8), which container has a valve (10) and is provided with a connecting element (12) surrounding the valve and which adapter has a substantially cylindrical body (1) with a Through hole in the center, which on the one hand has a first connection section (5) for fastening the adapter to the dispensing device (8), and on the other hand has a second connection section (7) with an extension (13) which interacts with the valve (10) , and with a recess (14) into which the connection member (12) can be inserted in order to connect the container to the body (1) while simultaneously actuating the valve, characterized in that the second connection section (7) has at least two elastically deformable Has sections (15) which surround the connecting element (12) and can be brought into and out of engagement with the connecting element, and that a securing element (2) is provided, which bears against the deformable sections (15) in a first position (A) in order to prevent the deformation of the sections and to establish a firm connection between the connecting member (12) and the second connecting section (7), and in a second position (B ) is arranged outside the deformable sections (15) in order to enable them to be deformed and to produce a detachable connection between the connection member (12) and the second connection section (7). 2. Adapter according to claim 1, characterized in that the deformable sections (15) are designed as threaded jaws in order to screw the container provided with the connecting element having an external thread by screwing it into the body (1) when the securing element (2) occupies the first position (A), and remove the container (6) provided with the connecting member (12) from the body by tipping over when the securing member (2) occupies the second position (B). 3. Adapter according to claim 1, characterized in that the second connection section (7) is designed as a bayonet receiving part in order to insert the container (6) provided with a bayonet plug part into the bayonet receiving part when the securing member is in the first position takes and remove the container provided with the bayonet connector part from the bayonet receiving part when the security organ occupies the second position. 4. Adapter according to one of claims 1 or 2, characterized in that the second connection section (7) has three deformable sections (15) which are formed uniformly. 5. Adapter according to one of claims 1 to 3, characterized in that the securing member (2) is a flat annular part with diametrically opposite and radially projecting tabs (17). 6. Adapter according to claim 5, characterized in that the tabs (17) protrude radially outward from the annular part and form handle parts for adjusting the securing member (2). 7. Adapter according to claim 6, characterized in that the annular part is provided in the region of the tabs (17) on the inner edge with a tapered section (18). 8. Adapter according to one of claims 1 to 4, characterized in that the body (1) has an edge (22) on the circumference in order to secure the securing member (2) against loss. 9. Adapter according to one of claims 1 to 4, characterized in that the body (1) consists of plastic or rubber. 10. Adapter according to one of claims 1 to 3, characterized in that the securing member (2) consists of plastic or metal. 5 10th 15 20th 25th 30th 35 40 45 50 55 60 65 3rd