EP1930251A1 - Child-proof blister packaging - Google Patents

Abstract

In a base section (6) there are separable locking segments (7) each covering a squeezed area for packaged material (18). Safety segments (8) can be swung open out of the surface of a blister section (5) with pressure from the rear side. The safety segments are designed so that they prevent attachment to the locking segments when inactive. An independent claim is also included for a blank for blister packs.

Description

The invention relates to a blister pack having the features of the preamble of claim 1. In such blister packs blisters for packaging medicines in the form of tablets, capsules, dragees, etc. may be used. The blisters consist of a provided with wells for receiving packaged carrier sheet and a pressure-sensitive flat cover sheet. To remove the packaged goods this is pushed through the cover sheet in a the cup associated pressing-through. These packages are intended to make access to the packaged goods for children more difficult.

There are already numerous blister packs known which deal with the problem of child safety. A generic comparable blister pack describes, for example, the US 2004/0188312 A1 , The blister pack shown therein consists essentially of a front portion forming a first portion with recesses for receiving the wells of the blister, a second, the back forming portion and a central portion which is disposed between the blister and the second portion. Removable barrier segments are arranged on the second section, each covering a recess for packaged goods or a corresponding push-through region of a cover film of the blister. These blocking segments are firmly connected by adhesive bonding with also separable individual segments of the central portion. On the front first section are D-shaped push tabs. By pressing on this D-shaped segment, a blocking segment can be partially separated from the rear section and finally torn away. The push-through area is now free and the packaged goods can be pushed out. So that the push-through segments not without can be pressed further, they are protected on the back of the blister pack by tear-off segments. These segments are arranged in rows on the second section, each segment being associated with a push-through segment. Only after such a segment has been torn away, a push-through segment for partially pushing out the locking segment according to the functional description can be pressed. To further secure a tear-off band is provided at a front end of the row of tear-off segments, which is to tear away for releasing the subsequent segments first and foremost. With regard to child safety, it has been shown that at least the tear-off band and the tear-off segments adjoining thereto in the rear-side second section are torn away relatively quickly by children. Another disadvantage is that because of the use of a double layer on one side of the blister, the cost of materials is large. In particular, because of the necessary bonding operations, the production of blister pack has proven to be expensive.

It is therefore an object of the present invention to avoid the disadvantages of the known, in particular to create a blister pack of the type mentioned, which meets high standards of parental control. Next, the blister pack should be inexpensive and easy to produce.

According to the invention, these objects are achieved with a blister pack having the features of claim 1. The essential components of the blister packaging are the bottom portion and the blister portion, which are each preferably formed flat. The cost of materials for the blister pack is therefore low. Depending on the intended use, the blister pack could be designed as a blister card, as a blister wallet (this would require at least one lid section) or even as a box be. The use of the locking segments according to the invention and securing segments ensures a high degree of child safety. Since only after at least partial separation of the securing segments a pressurization for the first step for separating the blocking segments from the bottom portion is possible, the operation of the opening process for pushing through packaged for children is difficult to see. Another advantage of the blister packaging is that the bottom portion and the blister portion only have to be connected together in an outer edge region. This fixation may preferably be an adhesive bond. The bonding can preferably take place in a peripheral edge region. There are generally no splices in the area of the locking segments and securing segments.

The securing segments may be at least partially separable from the plane of the blister section by pressure from the rear side. Of course, the fuse segments could possibly also be replaced elsewhere. Alternatively, it would be conceivable, for example, that a respective cutout for peeling off or peeling off the securing segment adjoins each securing segment. Such recesses would be designed such that they would enable intervention by means of fingernails on an edge region of a securing segment.

In a first embodiment, the securing segments can be folding sections which can be opened out of the plane of the blister section. A flap section may be a type of flag that can be easily grasped and unfolded.

The flap sections can each be formed by approximately U-shaped perforation lines. In principle, however, other non-closed weakening lines would be conceivable. The ends of these perforation lines or weakening lines define a folding line about which the folding section can be opened. The folding line could be given to improve the folding behavior by a fold line.

The securing segments may be formed by a closed perforation line arrangement which is subdivided into two differently perforated perforated line sections. A first perforation line section has a weaker perforation, whereby the safety segment in this area is easily depressible for a first Abpeel step. A second perforation line section has a stronger perforation compared to the first perforation line section. This perforation line arrangement leads to an advantageous operation guidance, since the user would first act on the security segment intuitively in the area of the weaker perforation. The stronger perforation in the second Perforationslinienabschnitt only serves to ensure that a partially unfolded fuse segment can be completely demolished. The perforation line arrangement can be achieved, for example, such that, for the weaker perforation, the webs between the perforation cuts are shorter than the corresponding webs in the stronger perforation.

Of course, the folding sections do not necessarily have to be designed only hinged. The securing segments, in particular the flap sections could possibly also be formed by respective closed perforation lines. For example, the ends of the U-shaped perforation lines could be connected by weakening webs, whereby the flap portion after the Unfolding could easily be completely severed or demolished.

It may be advantageous if in each case a folding portion is hinged about a folding line, which extends in a plan view preferably approximately centrally through the blocking segment. However, this rollover line does not have to be exactly above a center line of the ratchet segment. The folding line may define a front end of an overlapping area between the blocking segment and the securing segment. This overlap region defines an engagement surface on the blocking segment, which is preferably sufficiently large that it can be acted upon by a finger in an efficient manner. The handling can be simplified and in particular the senior friendliness of the packaging can be increased.

In order to further complicate the opening process to increase the parental control, it may be expedient if the bottom section further comprises push-through segments lying below the securing segments and which can be pressed in from the rear side. By pressing on a respective push-through segment, the securing segment can be partially separated, wherein it can be folded out, in particular in the embodiment as a folding section. If at most lower demands are placed on the parental control, it could simply be provided instead of Durchdrücksegmente corresponding recesses.

It may be advantageous if a push-through segment in the plan view for complete coverage is in each case surrounded by a securing segment, a push-through segment lying flat against a front end region of the securing segment facing away from the folding line.

It may be particularly advantageous if a securing segment in the plan view covers each part of a locking segment and completely covers a push-through segment. Such an arrangement has a favorable effect on the handling of the blister pack.

The blocking segments and / or the push-through segments can each be formed by closed perforation lines or other weakening lines. Of course, it is also conceivable that, for example, the push-through segments are designed as folding parts. In this case, they could be given by a U-shaped perforation line.

The perforation lines for the barrier segments and the push-through segments can be separated from each other. Since the blocking segments and the push-through segments are thus formed as separate segments on the bottom section, it is ensured that unintentional multiple openings can be prevented.

The blister portion and the bottom portion may be formed as separate sheet-like components. However, it may be advantageous if the blister pack consists of a single blank of cardboard or paperboard laminate. Of course, the blank could also be made of plastic.

The respective segments, i. the blocking segments, the securing segments and the push-through segments can be arranged mirror-symmetrically, whereby commercial blisters with two parallel rows of wells can be advantageously packaged in a simple manner.

Another aspect of the invention relates to a blank for the previously described blister pack. The cut has a blister portion and a bottom portion separated by a fold line. Thus, for sandwiching the blister, only the bottom portion needs to be folded around the blister portion. Of course, the blank could further comprise a lid portion with which the blister portion would be covered to protect the cups. This lid section would also be separated by a fold line from the blister section or blister bottom section (Blisterwallet). In addition, a second cover section could connect to the cover section, with which even the bottom section would be covered.

Figur 1:

Einen Zuschnitt für eine erfindungsgemässe Blisterverpackung,

Figur 2:

eine Draufsicht auf eine Blisterverpackung aus dem Zuschnitt gemäss Figur 1 (ohne Blister),

Figur 2a:

eine vergrösserte Darstellung eines Ausschnitts aus der Blisterverpackung gemäss Figur 2,

Figur 3:

einen Teilschnitt durch eine Blisterverpackung in Ruheposition mit einem Blister,

Figur 4:

die Blisterverpackung gemäss Figur 3 nach Eindrücken eines Durchdrücksegments,

Figur 5:

die Blisterverpackung gemäss Figur 4 nach einer Druckbeaufschlagung auf ein Sicherungssegment bei aufgeklapptem Sicherungssegment,

Figur 6:

die Blisterverpackung gemäss Figur 5 in Entnahmeposition,

Figur 7:

einen Zuschnitt für eine Blisterverpackung gemäss einem weiteren Ausführungsbeispiel,

Figur 8:

eine perspektivische Darstellung einer aus dem Zuschnitt gemäss Figur 7 gefertigten Blisterverpackung mit Blick auf die Vorderseite,

Figur 9:

eine perspektivische Darstellung mit Blick auf die Rückseite der Blisterverpackung gemäss Figur 8,

Figur 10:

die Blisterverpackung gemäss Figur 8, jedoch mit teilweise aufgeklappten Sicherungssegmenten,

Figur 11:

die Blisterverpackung gemäss Figur 9, wobei in einer Position ein Verpackungsgut entnommen wurde (Entnahmeposition),

Figur 12:

ein Zuschnitt für eine Blisterverpackung gemäss einem weiteren Ausführungsbeispiel,

Figur 13:

einen Zuschnitt für eine Blisterverpackung gemäss einem weiteren Ausführungsbeispiel, und

Figur 14:

eine vergrösserte Darstellung des Details E aus Figur 13.

Further individual features and advantages of the invention will become apparent from the following description of the embodiments and from the drawings. Show it:

FIG. 1:

A blank for a blister pack according to the invention,

FIG. 2:

a plan view of a blister pack from the blank according to FIG. 1 (without blister),

FIG. 2a:

an enlarged view of a section of the blister pack according to FIG. 2 .

FIG. 3:

a partial section through a blister pack in the rest position with a blister,

FIG. 4:

the blister pack according to FIG. 3 after pressing in a push-through segment,

FIG. 5:

the blister pack according to FIG. 4 after a pressurization on a fuse segment with unfolded Securing segment,

FIG. 6:

the blister pack according to FIG. 5 in removal position,

FIG. 7:

a blank for a blister pack according to a further embodiment,

FIG. 8:

a perspective view of one of the blank according to FIG. 7 fabricated blister pack facing the front,

FIG. 9:

a perspective view with a view of the back of the blister pack according FIG. 8 .

FIG. 10:

the blister pack according to FIG. 8 , but with partially unfolded fuse segments,

FIG. 11:

the blister pack according to FIG. 9 , wherein in one position a packaged goods has been removed (removal position),

FIG. 12:

a blank for a blister pack according to a further embodiment,

FIG. 13:

a blank for a blister pack according to a further embodiment, and

FIG. 14:

an enlarged view of detail E FIG. 13 ,

FIG. 1 shows a blank 17 for a blister pack. The blank 17 consists of a blister section 5 and a bottom section 6, which are separated by a fold line 16. By folding over the fold line 16, a blister can be sandwiched between these sections. F is a front side and R is a back side. In the blister section 5, a plurality of circular recesses can be seen, in which wells of a blister can be received. Respectively laterally next to each recess 10 securing segments 8 are arranged, which are each formed by U-shaped perforation lines. In the bottom section 6 blocking segments 7 and push-through segments 9 are arranged, which are each predetermined by closed perforation lines 14 and 15. Of course, it would also be conceivable that a push-through segment is designed only as a folding section. In this case, one would provide a non-closed perforation line, with their ends each specify a folding line.

FIG. 2 shows a plan view of the front side F of the Blisterabschnitts 5, wherein the bottom portion has been folded over the fold line. Through the recess 10, a portion of the locking segments 7 can be seen, which block a push-through area for packaged a cover sheet of a blister. How the individual segments are arranged one above the other in the folded-over state is shown in the detailed illustration FIG. 2a recognizable. Here, for better understanding, the actually hidden or partially hidden perforation lines 15 and 14 are also shown. The push-through segment 9 is obviously surrounded by the fuse segment 8 and thus completely covered. In this case, a front region of the securing segment 8 lies flat over the push-through segment 9. The ends of the perforation line 12 are connected to one another by a folding line indicated by 13. This folding line 13 can be, for example, by a fold line created with corresponding tools. However, such processing is not absolutely necessary because a folding line would automatically result when folding the securing segment 8. The securing segment 8 overlaps the blocking segment, the folding line 13 extending approximately centrally through the blocking segment 7. The overlapping area between the blocking segment 7 and the securing segment 8 defines an engagement surface which is sufficiently large to be selected so that efficient pressure can be exerted on the blocking segment 7 with one finger in this area. The mode of operation for opening the blister pack is described below with reference to FIG FIGS. 3 to 6 shown.

In FIG. 3 a blister pack 1 for a blister 2 is shown in which the blister is sandwiched between the blister section 5 and the bottom section 6. In each case a cup 3 of the blister is performed through the recess 10. The blister 2 consists essentially of a carrier film 4 provided with a plurality of cups 3 for receiving packaged goods 18 and a cover film 11 closing the cups. The carrier film 4 is generally made of a transparent or non-transparent plastic; the cover sheet 11 consists for example of aluminum, paper, a laminate or other suitable material through which packaged goods can be pushed through. From the rest position according to FIG. 3 It can be seen that the blocking segment 7 in each case covers a push-through region of the cover film 11 for the packaged product 18. In order to separate the blocking segment 7 in order to create a removal position, in a first step, the blocking segment would have to be partially separated from the bottom section by pressure from the front side F, whereby it would be able to be torn away in a second step (cf. Fig. 5 ). As can be seen, however, this is prevented by the securing segment 8 in the blister section 5.

How out FIG. 4 As can be seen, for example, a user first has to exert pressure on the push-through segment 9 from the back R with one finger, for example, whereby the securing segment 8 is partially separated from the plane of the blister section 5. As can be seen, the securing segment 8 is a flag-like folding section which can be opened by the folding line indicated by 13. This flap section can then be opened further from the front side F, as a result of which the blocking segment 7 is partially released. Now it can be pushed out from the front F on the shared side. This step is in FIG. 5 shown. By pressure with a finger over the overlap area on the blocking segment 7, the blocking segment is partially separated from the bottom section 6 in a first step. As can be seen, usually the locking segment 7 is only slightly unfolded. After this first step, the free end of the locking segment 7 could now be detected and then the locking segment be torn away. The push-through area in the region of the cover film 11 for pushing through the packaged product 18 would then be exposed. As FIG. 5 Furthermore, the push-through segment has been completely detached, whereby a through opening 22 in the bottom portion 6 is formed. One could imagine that - if lower demands are placed on the parental control - one would provide such openings (22) instead of the push-through already in the rest position.
FIG. 6 shows the blister pack 1 in the removal position. Evidently, the packaged product 18 has already been pushed through the cover film 11. Furthermore, it can be seen that the blocking segment has been completely detached. However, it will be clear to a person skilled in the art that such a complete detachment of the barrier segment is not necessarily required for the removal of the packaged goods would be necessary. An unfolding of the barrier segment would suffice per se.

The blank 17 according to FIG. 7 differs from the blank according to FIG. 1 merely in that in addition a lid portion 19 is provided for covering the cups. The lid portion 19 is connected via a hinge strip with the bottom portion 6. The hinge strip is defined by the two fold lines 20.

In the FIGS. 8 and 9 is a front view and a rear view of an open blister pack 1 to see, for this purpose, the blank according to the previous FIG. 7 has been used. Out FIG. 8 For example, it can be seen that tablets 18 are inserted into the cups 3 in each case. Of course, other packaged goods for medical applications or other applications could be included in the blister.

In FIG. 10 are different unfolded fuse segments 8 recognizable. A designated with 8 'fuse segment is only slightly unfolded; a designated with 8 '' fuse segment is opened almost to a folding angle of 90 °. In the 8 '' associated position, the opening 22 created by the at least partial detachment of the push-through segment as well as a part of the locking segment 7 can be seen. In FIG. 11 is shown with a 9 'Durchdrücksegment shown, which was not completely detached, but only folded. On the other hand, the blocking segment was completely detached, resulting in a clear view through the opening 21 on the blister. So is about in FIG. 11 a cover sheet 11 'destroyed as a result of crushing.

Another embodiment of a blank 17 for a blister pack is shown in FIG FIG. 12 shown. Here, no push-through segments are provided in the bottom section. However, the locking segments 7 in the bottom portion 6 substantially correspond to those of the previous embodiments. The securing segments 8 are therefore not separable from the plane of the blister section 5 by pressure from the rear side. The detachment of the fuse segments 8 is in FIG. 12 with the help of recesses 24 allows. As can be seen, each securing segment is adjoined laterally by a recess 24 which allows the securing segment 8 to be peeled out by means of fingernails.

In FIG. 13 a blank 17 for a box-like blister pack is shown. The blank 17 has a box bottom section 25, to which each laterally separated by fold lines web sections connect to form a prismatic hollow side wall. To close the box is a lid box section 26. Such boxes are (but without child safety), for example, from WO 2006/040230 known. Furthermore, it is off FIG. 13 recognizable that the securing segment 8 is formed by a closed perforation line 12, whereby it can be demolished. Then the perforation lines 12, 14 and 15 are designed in a special way (see. Fig. 14 ).

FIG. 14 shows details of the perforation lines for the individual segments 7, 8 and 9. The securing segment 12 is subdivided into two differently perforated perforated line sections. A first perforation line section 12 'has a weaker perforation, as a result of which the safety segment can easily be pressed in this area for a first peeling-off step. A second perforation line section 12 '' has a - compared to the first perforation line section 12 '- stronger perforation. This perforation is designed so that this area can not be pressed in, but only torn off. The stronger perforation in the second perforation line section 12 '' serves to allow a partially unfolded safety segment to be completely torn off. Evidently, this arrangement is created by the fact that for the weaker perforation 12 'the webs between the individual perforation cuts are shorter than the corresponding webs in the stronger perforation 12''. The blocking segment 7 is also evident divided into two differently perforated Perforationslinienabschnitte 14 'and 14''.

Claims (11)

A blister pack (1) for a blister (2) having a blister section (5) forming a front side (F) and a bottom section (6) forming a rear side (R) between which the blister can be sandwiched or inserted, the blister section (5 ) Having recesses (10) for receiving the wells (3) of the blister (2) and wherein in the bottom portion (6) detachable barrier segments (7) are arranged, each having a push-through portion for packaged goods (18) in a cover sheet (11) of the blister Cover in a rest position and the creation of a removal position in a first step by pressure from the front side (F) are partially separable from the bottom portion, whereby a partially separated barrier segment (7) is detectable in a second tearing away, characterized that in the blister section (5) the blocking segments (7) each overlapping securing segments (8) are arranged, which preferably by pressure from the rear At least partially from the plane of the blister section (5) are separable ago, wherein the securing segments (8) are designed such that they prevent engagement in the rest position on the locking segments (7) and only after at least partially separating the securing segments (8) Allow pressurization for the first step to separate the barrier segments (7) from the bottom section (6). Blister pack according to claim 1, characterized in that the securing segments (8) are each formed by closed perforation lines (14, 15) or that the securing segments (8) are folding sections which can be opened out of the plane of the blister section (5). Blister pack according to claim 1 or 2, characterized in that the securing segments are folding sections (8) which are formed by approximately U-shaped perforation lines (12). Blister packaging according to claim 3, characterized in that in each case a flap portion (8) about a folding line (13) is hinged, which in a plan view preferably approximately centrally through the blocking segment (7). Blister pack according to one of claims 1 to 4, characterized in that the bottom portion (6) further comprises under the securing segments (8) lying through blanks (9) for partially separating, in particular for unfolding the securing segments (8) from the back (R ) are pressed in ago. Blister pack according to claim 5, characterized in that a push-through segment (9) in the plan view for complete coverage is in each case surrounded by a securing segment (8), the push-through segment (9) preferably lying flat against an end region of the securing segment (8). Blister pack according to claim 5 or 6, characterized in that a securing segment (8) in the plan view in each case completely covers a part of a blocking segment (7) and a push-through segment (9). Blister pack according to one of claims 1 to 7, characterized in that the blocking segments (7) and / or the push-through segments (9) are each formed by closed perforation lines (14, 15). Blister pack according to one of claims 1 to 8, characterized in that the perforation lines (14, 15) for the blocking segments (7) and the push-through segments (9) are separated from each other. Blister pack according to one of claims 1 to 9, characterized in that it consists of a single blank of cardboard or paperboard laminate. Blank for a blister pack according to one of Claims 1 to 10, characterized in that the blister section (5) and the bottom section (6) are separated from one another by a fold line (16).

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