• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a blister package (1) for a button-cell comprising a blister sheet (4) arranged to form at least one housing for receiving at least one button-cell, and secured to a bottom (2). . According to the invention, the blister package comprises, between the bottom (2) and the blister sheet (4), a reinforcing sheet (6) having a tensile strength of between 1200 kg / cm 2 and 3100 kg / cm 2 according to ASTM D 882.
    公开号:CH711346A2
    申请号:CH01066/15
    申请日:2015-07-21
    公开日:2017-01-31
    发明作者:Meier Thomas；weber Eric；Renggli Urs
    申请人:Renata Ag；
    IPC主号:
    专利说明:

    Field of the invention
    The present invention relates to a blister pack for button cell, comprising a blister sheet arranged to form at least one housing to receive at least one button cell, and secured to a bottom.
    Background of the invention
    It is known to offer for sale button cells in blister packs. Such packages consist basically of a solid base by one side, a transparent plastic sheet thermoformed so as to form a housing for receiving the button-cell. The front and the back of the bottom generally include inscriptions, such as information relating to the mark, the reference, the conditions of use of the product, as well as texts in several languages relating to security or preferably of standard pictograms relating to safety.
    The bottom may be in the form of a flexible sheet which closes the blister. The battery is accessible by separating the flexible sheet of the blister by peeling. The flexible sheet is arranged to be easily separated from the blister, so that it is easy for a child to remove the flexible sheet to access the button-stack and risk ingesting it. Moreover, in order to sufficiently stiffen the assembly, the blister generally has reinforcing ribs on the sides. As a result, the packaging has thicknesses that make it necessary to leave spaces between the packages when they are stacked, resulting in a loss of space.
    The bottom may also be in the form of a carton having, at the housing of the button-cell, an orifice around which are distributed pre-cut lines of weakness, forming for example a cross. The carton must be pressure-depressed at these weakening lines in order to extract the coin-cell from its housing. This operation is easily achievable by a child, with the risk that the child accesses the coin-cell and ingests it. In addition, cardboard is a material that has the disadvantage of being easily torn. In particular, when the blister occupies only a central portion of the carton surface, the outer edges of the carton can be easily torn, even by a child, which can cause accidental access to the button-cell.
    It is therefore necessary to propose a new blister package button-cell offering better security, and preventing in particular any accidental opening by a child.
    Summary of the invention
    For this purpose, the present invention relates to a blister package for button cell comprising a blister sheet arranged to form at least one housing for receiving at least one button-cell, and secured to a bottom.
    According to the invention, the blister package comprises, between the bottom and the blister sheet, a reinforcing sheet having a tensile strength of between 1200 kg / cm <2> and 3100 kg / cm <2> according to ASTM D 882.
    Advantageously, the reinforcing sheet covers at least the outer edges of the bottom, and preferably substantially the entire surface of the bottom.
    According to the embodiments, the bottom may comprise, at least on the side of the blister sheet, impressions, the reinforcing sheet being transparent, or the bottom may be neutral on the side of the blister sheet, the backing sheet with impressions.
    The bottom and the reinforcing sheet may have opposite an orifice opening into the housing, said orifice preferably having a circular shape.
    Thus, the blister package according to the invention has great strength so that any access to the button cell by simply pressing on the packaging or handling the package, especially by a child, is made impossible. Only the use of a tool, such as scissors, will destroy the blister package and access the housing of the button-cell. In addition, the blister pack is rigid enough not to require reinforcing ribs, so it is very flat. As a result, the blister packs according to the invention can be stacked without loss of space.
    Brief description of the drawings
    The objects, advantages and features of the present invention will appear more clearly in the following detailed description of at least one embodiment of the invention given solely by way of non-limiting example and illustrated by the accompanying drawings in which: :<tb> Fig. 1 <SEP> schematically illustrates an exploded view of a blister pack according to the invention, and<tb> fig. 2 <SEP> is a top view of a blister pack according to the invention.
    Detailed description of the invention
    [0013] Referring to FIG. 1, the blister pack 1 comprises a bottom 2, integral on the side of its front face 2a, with a transparent sheet, called blister sheet 4, of thermoformed plastic material so as to constitute a shell forming a housing for receiving at least a button battery. The bottom 2 is preferably cardboard. The cardboard is advantageously a cardboard sheet having a thickness of between 200 μm and 500 μm, preferably between 250 μm and 400 μm. The paperboard preferably has a basis weight of between 150 g / m 2 and 600 g / m 2, and preferably between 300 g / m 2 and 400 g / m 2. The rear face 2b of the bottom 2 generally includes inscriptions, such as information relating to the mark, the reference, the conditions of use of the product, a barcode, as well as texts in several languages relating to security or preference for standard safety pictograms. The front face 2a of the bottom 2, the side of the blister sheet 4, may be neutral, blank of any inscription, or may include inscriptions, such as the brand or reference of the product. The bottom 2 has a cutout 5 for hanging the blister pack at a display. Blister foil 4 is preferably polyethylene terephthalate, thermoformable, and has for example a thickness between 200 microns and 300 microns.
    According to the invention, there is provided, between the bottom 2 and the blister sheet 4, a reinforcing sheet 6 which has a tensile strength of between 1200 kg / cm <2> and 3100 kg / cm < 2>, and preferably between 1800 kg / cm <2> and 2500 kg / cm <2> according to ASTM D 882.
    Advantageously, the reinforcing sheet 6 also has an elongation at break of between 100% and 170%, preferably between 120% and 150% according to the ASTM D 882 standard.
    In a first variant, the reinforcing sheet 6 covers at least the outer edges of the bottom 2, to prevent tearing of the package by its outer edges. According to another preferred embodiment, the reinforcing sheet 6 has the same dimensions as the bottom so that it covers substantially the entire surface of the bottom 2 to cover at least the outer edges of the bottom 2 and the periphery of the orifice 8 and the cutout 5 as will be described below.
    Preferably, the reinforcing sheet 6 is made of a material chosen from the group comprising polyethylene terephthalates, polyethylenes, such as Tyvek®, and polyvinyl chlorides.
    In a particularly preferred manner, the reinforcing sheet 6 is a polyethylene terephthalate, having undergone biaxial stretching. Preferably, the reinforcing sheet 6 has a shiny appearance. It can be transparent if the front face 2a of the bottom 2 comprises impressions or include impressions if the front face 2a of the bottom 2 is neutral.
    The reinforcing sheet 6 has a thickness preferably between 15 microns and 50 microns, preferably between 20 microns and 30 microns.
    To ensure the fixing of the reinforcing sheet 6 on the front face 2a of the bottom 2, there is provided a layer of adhesive 9 between the bottom 2 and the reinforcing sheet 6. This glue is a standard glue, such as a dispersion, conventionally used and known to those skilled in the art. The adhesive layer 9 may have a thickness of between 3 μm and 7 μm. To improve the adhesion of the reinforcing sheet 6 to the bottom 2, the face of the reinforcing sheet 6 facing the bottom 2 may have undergone a Corona type surface treatment.
    In order to ensure the fixing of the blister sheet 4 on the reinforcing sheet 6, there is provided a layer of sealing glue 10 between the reinforcing sheet 6 and the blister sheet 4. This glue is preferably an adhesive thermoactive standard, known to those skilled in the art, used for heat sealing. The layer of sealing glue 10 may have a thickness of between 2 μm and 5 μm. The blister sheet 4 can be conventionally assembled on the reinforcing sheet 6 by a heat-sealing bonding surface at temperatures between 150 ° C and 300 ° C. It is obvious that any other suitable assembly technique can be used.
    To allow the evacuation of heat during heat sealing of the blister sheet 4, the bottom 2 and the reinforcing sheet 6 have opposite an orifice 8 opening into the housing formed by the blister sheet 4. The orifice 8 advantageously has a circular shape so as not to present a zone of weakness. The orifice preferably has dimensions, and more particularly a diameter, of between 1 mm and 6 mm. No pre-cut slot is provided around the orifice 8, the contours of which are further reinforced by the reinforcing sheet 6. Thus, it is not possible to tear the package at the orifice 8 or extract the button cell by simply pressing on the blister pack.
    The blister package according to the invention has a high strength, preventing any tearing as well by the outer edges as the orifice 8. Thus, it is not possible to extract the button-cell from its packaging only by simple manipulation. A tool such as scissors will be needed to destroy the blister pack and access the coin-cell. The blister pack according to the invention is therefore particularly safe vis-à-vis any accidental opening by a child, in particular. In addition, the blister pack according to the invention is rigid enough not to have to reinforce it by reinforcing ribs. As a result, the bottom of the blister pack according to the invention is flat, which makes it possible to stack the blister packs of the invention without loss of space.
    权利要求:
    Claims (10)
    [1]
    1. Packaging (1) blister for button-cell comprising a blister sheet (4) arranged to form at least one housing for receiving at least one button-cell, and integral with a bottom (2), characterized in that it comprises, between the bottom (2) and the blister sheet (4), a reinforcing sheet (6) having a tensile strength of between 1200 kg / cm <2> and 3100 kg / cm <2> according to the ASTM D 882 standard.
    [2]
    2. Packaging according to claim 1, characterized in that the reinforcing sheet (6) covers at least the outer edges of the bottom (2), and preferably substantially the entire surface of the bottom (2).
    [3]
    3. Package according to claim 1 or 2, characterized in that the reinforcing sheet (6) is made of a material selected from the group consisting of polyethylene terephthalates, polyethylenes, polyvinyl chlorides.
    [4]
    4. Packaging according to one of claims 1 to 3, characterized in that it comprises a layer of adhesive (9) between the bottom (2) and the reinforcing sheet (6) and a layer of sealing glue (10). ) between the reinforcing sheet (6) and the blister sheet (4).
    [5]
    5. Packaging according to one of claims 1 to 4, characterized in that the bottom (2) comprises, at least on the side of the blister sheet (4), impressions and in that the reinforcing sheet (6) is transparent.
    [6]
    6. Packaging according to one of claims 1 to 4, characterized in that the bottom (2) is neutral on the side of the blister sheet (4), and in that the reinforcing sheet (6) comprises impressions.
    [7]
    7. Packaging according to one of the preceding claims, characterized in that the bottom (2) is a cardboard sheet with a thickness between 200 microns and 500 microns.
    [8]
    8. Packaging according to one of the preceding claims, characterized in that the bottom (2) and the reinforcing sheet (6) have opposite a hole (8) opening into the housing.
    [9]
    9. Packaging according to claim 8, characterized in that the orifice (8) has a circular shape.
    [10]
    10. Package according to claim 9, characterized in that the orifice (8) has a diameter of between 1 mm and 6 mm.
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    同族专利:
    公开号 | 公开日
    CH711346B1|2021-06-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01066/15A|CH711346B1|2015-07-21|2015-07-21|Blister pack for button cell batteries.|CH01066/15A| CH711346B1|2015-07-21|2015-07-21|Blister pack for button cell batteries.|
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