EP3086871A1

EP3086871A1 - Container comprising a treatment agent and method for the production of said container

Info

Publication number: EP3086871A1
Application number: EP14824797.6A
Authority: EP
Inventors: Matthias Schneider
Original assignee: Sanner GmbH
Current assignee: Sanner GmbH
Priority date: 2013-12-23
Filing date: 2014-12-11
Publication date: 2016-11-02
Also published as: WO2015096993A1; DE102013114772A1; US20160318687A1

Abstract

The invention relates to a container comprising a wall (2) which forms a receiving chamber (3) and separates said chamber from the environment (4). The receiving chamber (3) contains a treatment agent, in particular a desiccant and the wall (2) has a grid (5, 5') provided with grid openings (6), by means of which the treatment agent can come into contact with a substance in the environment (4). The grid (5, 5') is an injection-moulded plastic part and said grid (5, 5') has a first and a second grid face (11, 12), the first grid face (11) being formed by a first grid section (13) constituting a layer and the second grid face (12) being formed by a second grid section (14) constituting a layer. First linear depressions (15) are formed in the first grid face (11) and second linear depressions (16) are formed in the second grid face (12), the first and second linear depressions (15, 16) intersecting in intersection regions. The grid openings (6) are formed in the intersection regions of the first and second depressions (15, 16). The invention is characterised in that the second linear depressions (16) are not arranged in parallel.

Description

Patent application

Applicant: Sanner GmbH, 64625 Bensheim Container containing a treatment agent and process for its preparation

The present invention relates to a container having a wall which forms a receiving space and delimits from an environment, wherein in the receiving space, a treatment agent, in particular a desiccant, is accommodated, wherein the wall has a grid, which with

Lattice openings is provided, through which the treatment agent can come into contact with a substance from the environment, the grid a

Plastic injection molded part and wherein the grid has a first and a second grid side, wherein the first grid side is formed by a first layer-shaped grid portion and the second grid side by a second layer-shaped grid portion, wherein in the first grid side first line-shaped depressions are formed, wherein in the second Grid side second line-shaped recesses are formed, wherein the first and second line-shaped depressions intersect in crossing areas and wherein in the crossing regions of the first and second recesses, the grid openings are formed. Such a body may, for example, as a

Desiccant capsule be formed. In this case is in the

Recording room as a treatment agent, a desiccant, such as silica gel recorded. The desiccant in the receiving space may through the grid openings with the air (or other gas) from the environment of the body in contact and bind moisture occurring there. In this way, for example, the interior of a package in which the container is to be kept dry. At the same time, the grid prevents the treatment agent from escaping from the body. The invention also relates to a method for producing such a container. Containers for receiving a desiccant have so far mostly a receiving space, which is provided on one side with a cover made of cardboard. The pores of the cardboard can be used to exchange moisture with the environment. At the same time, the cardboard prevents the desiccant from escaping. In cardboard covers, however, is disadvantageous that when punching the mostly round covers made of cardboard, a considerable amount of waste. In addition, cardboard covers are not dimensionally stable. In addition, it has already been proposed to manufacture the grid of plastic. Such a container for a treating agent is known from US 4,093,105. The aforesaid container has openings which are larger in the area of the inner surface of the container and smaller at the outer surface.

Another container for a treatment agent with a grid out

Plastic is known from US 5,730,785. To the leakage of

To prevent desiccant, the openings have a diameter that widens from the inside out.

The aforementioned container with a plastic grid have the

Disadvantage that used in the production by injection molding

Tools must be very filigree, to the small ones

Form grid openings. During manufacture, therefore, there is a rapid wear of the tools. Due to the wear of the

Tool are the grid openings with increasing number of shots of the tool undesirably smaller. This may affect the quality of the exchange between the treatment agent and the environment. In addition, the production costs are increased.

DE 10 2004 002 963 A1 has already described a lattice structure which has two groups of parallel ribs, of which the ribs of one group extend at right angles to the ribs of the other group. The invention has the object of providing a container that can be easily and reliably produced. This object is achieved with the features of claim 1. Accordingly, it is provided in a container mentioned above that the second line-shaped depressions are not arranged parallel to each other. This design allows a simple and reliable production of the container. In particular, this is a good in the production

Filling behavior of the injection mold achieved. The grid can also be made with good precision. In particular it comes with the

Producing only a small tool wear ß, so that the

Manufacturing can be carried out easily over a longer period of time. The production is also inexpensive. Other advantages of the design are that the grid has a high stability. This makes it possible to fill the container - depending on the application - with a different amount of treatment agent. Due to the high stability no additional measures are required, which make the production more complicated and expensive.

According to an advantageous development of the invention it is provided that the second line-shaped recesses are arranged in a star shape around a central portion. As a result, the production is further improved.

In particular, this configuration further improves the filling behavior of the injection mold used in the production. Preferably, the line-shaped depressions are each arranged in a radial direction. In addition, this arrangement also contributes to a good stability of the grid. A further preferred embodiment provides that the first

Layer-like grating portion has first lattice struts, which are bounded by the first line-shaped recesses and that the second layer-like grating portion has second lattice struts, of the second are delimited linear depressions. First and second grid struts intersect, with the grid openings disposed between the intersection areas of the first and second grid struts. Such a design is easy and reliable to manufacture.

A further improvement can be achieved in that the first grid struts extend in a circumferential direction and / or that the second grid struts extend in a radial direction. This not only allows reliable production, it also contributes to a high

Stability of the grid at.

According to the invention, it is particularly advantageous if the first lattice struts are annular or partially ring-shaped. For this purpose, the first recesses may be annular or partially annular. The first grid struts may preferably be along a round line, e.g. run circular.

According to an advantageous embodiment of the invention, it is provided that the second line-shaped recesses have different lengths, wherein one or more shorter of the second recesses are arranged between two longer of the second recesses. Here, the second lattice struts may form a main branch and branches with sub-branches, wherein the main branches are separated by the longer of the second recesses and the lower branches are separated by the shorter of the second recesses. Preferably, one to three, particularly preferably two lower branches are provided at a branch. This design further improves the production. In this case, this arrangement of the second line-shaped recesses allows a particularly good filling behavior of the injection mold during production by injection molding. An advantageous development of this inventive concept provides that the shorter of the second recesses have a greater distance from a central region of the grating than the longer ones of the second recesses. A particularly good manufacturability results in an advantageous manner when the first grid section has webs in a central region, which extend in the radial direction. The walkways contribute to a good

Filling behavior of the injection mold in the manufacture of the grid at. This is especially true when the first grid struts are in a circumferential direction. The webs may preferably be arranged in a star shape.

According to the invention, it is particularly preferred that the grid openings have a clear width between 0.1 mm and 0.25 mm.

Furthermore, it may be provided in an advantageous manner that the

Grid openings have several sides. In this case, in particular, at least one of the sides can be curved. Preferably, two of the sides are curved. Here are two of the pages through the first

Grid struts and two more of the sides are formed by the second grid struts. Curved sides can preferably be formed by annular first lattice struts.

An advantageous embodiment of the invention provides that the first line-shaped recesses are open to the environment and the second line-shaped recesses are open to the receiving space or that the first line-shaped recesses are open to the receiving space and the second line-shaped recesses are open to the environment. According to the invention, it is particularly preferred if the body is designed as a capsule, in particular as a desiccant capsule. The capsule can be a separate part, which is arranged for example in a packaging. In addition, the capsule may also be part of the package and e.g. in a lid, in particular a plug, be integrated.

The invention also relates to a closable

Packaging with a closed space for a packaged product, in particular tablets, wherein in the space for the packaged product at least one container according to the invention is arranged.

The invention also has the object of specifying a method for producing a container according to the invention, which is simple and reliable and inexpensive to carry out. This object is achieved by a method according to claim 14. Accordingly, a method for producing a container according to the invention by injection molding

provided, wherein the first recesses by a first

Injection mold portion and the second recesses are formed by a separate second injection mold section. It is particularly preferred if the first and the second

Injection mold are moved during demolding relative to each other.

Good manufacturability is achieved when an injection point is arranged on the second grid section. In this case, the injection point can be arranged in an advantageous manner in a central region. This contributes to a reliable production and a good filling behavior of

Injection mold at.

Other objects, features, advantages and applications of the present invention will become apparent from the following description of embodiments with reference to the drawings. All described and / or illustrated features alone or in any meaningful combination form the subject matter of the invention, regardless of the summary in individual claims or their relationships. Show it:

Fig. 1 a: A side view of a container according to the invention;

Fig. 1 b: A view from above of the container of Fig. 1 a; Fig. 1 c: A perspective view of the container of Figure 1 a from above.

Fig. 1 d A perspective view of the container of Figure 1 a from below.

Fig. 1 e shows a cross section through the container of Fig. 1 a along the line

A-A;

Fig. 1f: The enlarged detail C of the container of Fig. 1 e;

Fig. G: The enlarged detail D of the container of Fig. 1 e

Fig. 2a is a side view of a grid according to the invention;

Fig. 2b is a top view of the grid of Fig. 2a with a

enlarged detail;

Fig. 2c: A perspective view of the grid of Figure 2a from above.

Fig. 2d A perspective view of the grid of Figure 2a from below.

Fig. 2e is a bottom view of the grid of Fig. 2a with a

enlarged detail;

FIG. 2f: a cross section through the grid of FIG. 2a along the line D-D; FIG.

Fig. 3a is a side view of the container of Figure 1 a without grid.

Fig. 3b is a top view of the container of Fig. 3a;

Fig. 3c: A perspective view of the container of Figure 3a from above.

Fig. 3d A perspective view of the container of Figure 3a from below.

Fig. 3e is a bottom view of the container of Fig. 3a;

Fig. 3f: A cross section through the container of Fig. 3a along the line

A-A;

Fig. 3g: Another perspective view of the container of Figure 3a from above.

Fig. 3h: Another perspective view of the container of Figure 3a from below.

In the figures 1 a to 1 e, a container 1 is shown. As can be seen in particular Figure 1 e, the container has a wall 2, a Recording room 3 forms. The receiving space 3 is enclosed by the wall 2 and separated from the environment 4. In the receiving space 3, a not shown treatment agent can be added.

Particularly, the container is suitable for a desiccant, such as silica gel, which can bind moisture. The wall 2 has a

Side section 7 on. This is cylindrical in the illustrated embodiment. In addition, the wall 2

opposite sides end portions 8 on. In order for the treatment agent to be able to come into contact with the environment 4, the wall 2 has grids 5, 5 '. In the illustrated embodiment, the container 1 on the opposite sides in each case a grid 5 or 5 '. The grid 5, 5 'is provided with grid openings 6, which connect the receiving space 3 with the environment 4. The grids 5, 5 'are arranged in the end sections 8 of the wall 2.

The container 1 is formed as an injection molded part. In the illustrated

Embodiment, the grid 5 'with the side portion 7 of the wall 2 is integrally connected. The grid 5 is a separate injection molded part, which is used after filling the container 1 with the treatment agent. In order to fix the grid 5, the side section 7 in the wall 2 has a clamping section 9 which fixes the grid 5. This can be seen particularly well in FIG. 1f. Here it is shown that the side portion 7 forms a shoulder 10 on which the grid 5 is arranged. The clamping portion 9 is a bent edge of the side portion 7. The grid 5 is fixed between the clamping portion 9 and the heel 10.

FIGS. 1 a to 1 e further show that the container 1 is designed as a capsule. If the container is filled with a desiccant, resulting in a desiccant capsule. The desiccant capsule is

typically filled with an amount between 0.2 g and 1 0 g desiccant, preferably with an amount between 0.5 g and 3 g desiccant. The desiccant capsule can be placed in a sealable package, such as Example, a plastic container with lid, be given, which has a space for a packaged product, such as tablets. In this way, the desiccant capsule can provide for constant dry conditions inside the package. Other than illustrated, the container may also be integrated into the closure of a sealable package. For example, the container may be arranged on a plug, for example a tablet tube. In this case, it is preferable to provide only a grid which is arranged on the side of the container which projects into the space for the packaged goods.

FIGS. 2 a to 2 d show the grille 5 of the container 1 illustrated in FIGS. 1 a to 1 e. The grid 5 ', apart from being not made as a separate component, is formed substantially identically to the grid 5. Therefore, the following description of the grating 5 also applies to the grating 5 '.

The grid 5 has a first grid side 1 1 and a second grid side 12. The first grid side 1 1 is formed by a first layer-shaped grid section 13. The second grid side 12 is formed by a second layer-shaped grid section 14. The first and second layered

Grid section 13, 14 are interconnected and designed as a single injection molded part. In the first grid side 1 1, the first line-shaped depressions 15 are formed, which are open to the receiving space 3. In the second grid side 12, the second line-shaped depressions 16 are provided, which are open to the environment 4. In this case, first lattice struts 17 are formed in the first layer-like lattice section 13. The first grid struts 17 are bounded laterally by the first line-shaped depressions 15. The second layer-shaped grid section 14 has second grid struts 18. These become laterally from the second

delimited line-shaped depressions 16.

The figures also show that the first line-shaped

Recesses 15 and the second line-shaped depressions 16 in Intersect crossing areas, wherein in the crossing regions of the first and second recesses 15, 16 grid openings 6 are formed.

The arrangement of the first and second linear recesses 15 and 16 can be particularly well taken from Figures 2b and 2e. Here it can be seen that the first line-shaped depressions 15 in one

Circumferential direction. In the illustrated embodiment, the first line-shaped depressions 15 are circular.

Accordingly, the first grid struts 17 extend in

Circumferential direction and are in the illustrated embodiment

formed annular. On the other hand, the second are linear

Recesses 16 and the second grid struts 18 arranged in a star shape around the central region 19 of the grating 5. The illustrated

Embodiment shows that the second line-shaped depressions 16 are not arranged parallel to each other. Accordingly, the second grid struts 18 are not parallel to each other. The recesses 16 each extend in a radial direction. This can be seen in FIG. 2b. Here it can be seen that in the illustrated embodiment, the second line-shaped recesses 16 extend exactly in the radial direction. In the crossing regions of the radially extending second line-shaped recesses 16 and extending in the circumferential direction of the first line-shaped depressions 15, the grid openings 6 are formed.

FIG. 2 b further reveals that the second line-shaped

Recesses 16 have different lengths. In the illustrated

Embodiment, the second line-shaped recesses 16 three different lengths. In this case, in each case one or more shorter second depressions 16 are arranged between two longer ones of the second depressions 16. In this case, the shorter of the second recesses 16 have a larger distance to the central region 19 of the grating 5 than the longer of the second recesses 16. In this way, the second grating struts 18 each form a main branch 20, which leaves from the central region 19. The main branches 20 are the longer of the second Wells 16 separated. Each main branch 20 has a plurality of lower branches 21, which are separated by the shorter of the second recesses 16.

The grid openings 6 have a clear width between 0.1 mm and 0.25 mm. In addition, the grid openings 6 each have several sides. In the illustrated embodiment, each grid opening 6 has four sides. Two sides are bounded by the first lattice struts 1 7 and two other sides by the second lattice struts 18. Since the first grid struts 17 are curved, two sides of the grid openings 6 are curved.

FIG. 2 b further reveals that the second line-shaped

Recesses 16 and the second grid struts 18 are arranged in a star shape. An injection point is arranged in the central region 19 of the second grid section 14. In this way, the liquid plastic material can be guided by the first lattice struts 17 radially outward in the injection molding. At the same time, the second lattice struts 18 are filled. FIG. 2e shows that the first grid section 13 has webs 22 in a central region which extend in the radial direction.

By way of injection molding, the first recesses 15 are formed by a first injection molding section and the second recesses 16 are formed by a second injection molding section (not shown). For forming, the first and second Spritzgießwerkzeugabschnitt are moved relative to each other.

FIGS. 3a to 3h show the container 1 without the grille 5. It can again be seen clearly that the container 1 has a wall with a wall

Side section 7 has. An end portion 8 of the wall 2 is formed by the grid 5 '. Good to see is still the paragraph 10, on which the grid 5 can be arranged. Furthermore, it can be seen that the Clamping portion 9 is initially in the extension of the side portion 7 before it is brought into the clamping position shown in Figure 1 f, after inserting the grating 5. Furthermore, FIGS. 3a to 3h once more clearly show the grating 5 '. This is, apart from being integrally formed with the side portion 7 of the wall 2, as well as the grid 5 described above configured.

Claims

claims

1 . Container with a wall (2) forming a receiving space (3) and delimiting from an environment (4), wherein in the receiving space (3) a treatment agent, in particular a desiccant, is received, wherein the wall (2) is a grid ( 5, 5 '), which with

Grid openings (6) is provided, through which the treatment agent with a substance in the environment (4) can come into contact, wherein the grid (5, 5 ') is a plastic injection molded part, wherein the grid (5, 5') a first and a second grating side (1 1, 12), wherein the first

Grid side (1 1) by a first layer-shaped grid section (13) and the second grid side (12) by a second layer-shaped grid section (14) is formed, wherein in the first grid side (1 1) first line-shaped depressions (15) and in the second Grid side (12) second line-shaped recesses (16) are formed, wherein the first and second line-shaped recesses (15, 16) in

Intersect crossing areas, wherein in the crossing regions of the first and second recesses (15, 16), the grid openings (6) are formed, characterized in that the second

line-shaped depressions (16) are not arranged parallel to each other.

2. Container according to claim 1, characterized in that the second line-shaped depressions are arranged in a star shape around a central portion.

3. Container according to claim 1 or 2, characterized in that the first layer-shaped grid section (13) has first grid struts (17) which are delimited by the first line-shaped depressions (15) and that the second layer-shaped grid section (14) second Lattice struts (18), that of the second line-shaped

Wells (16) are limited.

Container according to claim 3, characterized in that the first lattice struts (17) extend in a circumferential direction and / or that the second lattice struts (18) extend in a radial direction.

Container according to claim 3 or 4, characterized in that the first lattice struts (17) are annular and / or part-ring-shaped.

Container according to one of claims 1 to 5, characterized in that the second line-shaped recesses (16) have different lengths, wherein between two longer of the second

Recesses (16) one or more shorter of the second recesses (16) are arranged.

A container according to claim 6, characterized in that the shorter ones of the second recesses (16) have a greater distance from a central region (19) of the grating (5, 5 ') than the longer ones of the second recesses (16).

Container according to one of claims 1 to 7, characterized in that the first grid section (13) in a central region (19) has webs (22) which extend in the radial direction.

Container according to one of claims 1 to 8, characterized in that the grid openings (6) have a clear width between 0.1 mm and 0.25 mm.

Container according to one of claims 1 to 9, characterized in that the grid openings (6) have a plurality of sides, wherein in particular at least one of the sides is curved.

1 1. Container according to one of claims 1 to 10, characterized in that the first line-shaped depressions (15) to the environment (4) are open and the second line-shaped depressions (16) for

Receiving space (3) are open towards or that the first line-shaped

Recesses (15) to the receiving space (3) are open and the second line-shaped (16) depressions to the environment (4) are open.

12. Container according to one of claims 1 to 1 1, characterized in that the container (1) as a capsule, in particular as

Desiccant capsule, is formed.

13. Sealable packaging with a space for a packaged product, in particular tablets, characterized in that in the space for the packaged goods, a container (1) according to one of claims 1 to 1 1 is arranged.

14. A method for producing a container according to any one of claims 1 to 13 by injection molding, characterized in that the first recesses (15) by a first Spritzgießwerkzeugabschnitt and the second recesses (16) are formed by a separate second injection mold section.

15. The method according to claim 14, characterized in that on the second grid section (14) an injection point is formed.