JP4936535B2 - container - Google Patents

Description

  The present invention relates to a container.

  Generally, as a performance required for a container, there is a case where an article to be stored is protected from an impact given from the outside. For example, ampules used for medical purposes are stored and transported in an ampule storage container, but a simple paper container may be used for the purpose of cost reduction. Ampules originally have the characteristic of being easily damaged, and therefore, it is completely difficult to protect ampoules from shocks that are received during transportation simply by simple paper packaging, and often break during transportation.

  Conventionally, a container that prevents the stored articles from being damaged has been proposed. For example, Patent Document 1 below discloses a packaging container that prevents the ampoule from being damaged. In this packaging container, a structure such as a hole portion, a canopy portion, a tongue piece portion, or the like is provided, and it is aimed to securely hold an ampoule or a vial.

JP 2005-225499 A

  It is a natural requirement to save as much time and labor as possible for manufacturing the container. It can be said that the container of the said patent document 1 is a complicated structure, As a result, the effort and cost of manufacture may be required. Therefore, it is not suitable when it is desired to provide a container having shock absorption properties with a low cost and a simple structure.

  In general, for the purpose of alleviating the impact applied to the contents contained in the container or the container, it is widely performed to provide a cushioning material on the inside or outside of the container. It is important to use a cushioning material having better performance, such as sufficient cushioning performance and no cost.

  For example, one type of widely used adhesive is a hot melt adhesive. Originally, hot melt refers to a processing method in which a solid material is heated, melted, fluidized and applied at room temperature, and coating and adhesion are completed when cooled to room temperature. Often refers to the material used in Today, hot melt adhesives are widely used for bonding in a wide range of applications such as bookbinding and bonding of parts of automobiles. As a material of the hot melt adhesive, a thermoplastic resin such as EVA (ethylene / vinyl acetate copolymer resin) is generally used.

  As a usage form of this hot melt adhesive, there is a form in which a foam is formed by mixing gas. This form of use has advantages such that the fluidity is reduced by forming into a foam, so that the application work is less likely to sag, and the amount of hot melt can be reduced by foaming to increase the volume. Incidentally, nitrogen, which is easily available, is often used as the gas.

  Thus, when gas is mixed in a hot melt, there exists the characteristic which has elasticity even after solidifying. Conventionally, hot melt mixed with gas has been used as an adhesive, but this elasticity is also suitable for use as a cushioning material. Hot melt adhesives are widespread, easily available and low cost, and can be easily used as cushioning materials.

  Therefore, the problem to be solved by the present invention is that it can be easily manufactured at a low cost with a simple structure, and by using hot melt mixed with gas as a buffer material, the article is protected from impact and the possibility of breakage is reduced. To provide a container.

Means for Solving the Problems and Effects of the Invention

  In order to solve the above-mentioned problem, a container according to the present invention is a container for storing an article having a cylindrical portion, and a sheet-like member is alternately formed with ridges and valleys in a wavy shape, The top part of all the mountain parts and the bottom part of all the valley parts have a deformed shape so as to be parallel straight lines, and the cylindrical part of the article is formed by the wall part formed across the bottom part of the valley parts. A wavy sandwiching portion to be sandwiched, and a portion of the wavy sandwiching portion that is in contact with the cylindrical portion of the article sandwiched by the wall portion is linearly formed in a direction perpendicular to the straight line, has elasticity, and the wavy sandwiching portion is the article When the cylindrical part is clamped, a first elastic buffer part interposed between the wave-like clamping part and the cylindrical part of the article is provided.

  Thus, the container of the present invention has a wave-like holding part having a wave-like peak part and a valley part, and a first elastic buffer part having elasticity formed on the wave-like holding part, and the wave-like holding part serves as an article. Since the 1st elastic buffer part interposes a wavelike clamping part and an article when pinching, the damage of an article can be controlled by the 1st elastic buffer part relieving the impact given from the outside by elasticity. Furthermore, the wavy sandwiching portion has a simple structure in which crests and troughs are alternately formed in a wavy shape on the sheet-like member, and only the first elastic buffering portion is formed thereon, so that it can be easily manufactured. A container that holds an article and protects it from external impact can be provided.

  Further, the side surface portion formed at a position where it can come into contact with the article sandwiched between the wall portions of the wave-shaped sandwiching portion, and the surface of the side surface portion is linearly formed in a direction perpendicular to the straight line and has elasticity. The second elastic buffer portion may be further provided, and the side surface portion may indirectly contact a part of the article sandwiched between the wall portions of the wave-shaped sandwiching portion with the second elastic buffer portion interposed therebetween.

  As a result, the second buffer portion is formed in the side surface portion of the container where the part of the article sandwiched between the valleys is in contact, so the first buffer portion alleviates the impact applied to the cylindrical portion of the article. The damage of the article can be suppressed by the second buffer part mitigating the impact given to the part different from the cylindrical part of the article. Furthermore, since the side surface portion and the second buffer portion have a simple structure and can be easily manufactured, it is possible to manufacture a container that protects an article from damage without taking time and effort.

  Furthermore, the first elastic buffering part or the second elastic buffering part may be a hotmelt buffering part formed by applying a hot melt adhesive that is foamed by mixing gas.

  Since hot melts are widely spread and can be easily obtained and are low in cost, by using such hot melts in the buffer section, it is possible to produce a container that can easily prevent damage to articles without cost. Further, since the adhesive performance of the hot melt adhesive can be used, the first elastic buffer portion and the second elastic buffer portion can be fixed on the wave-like sandwiching portion and the side surface portion without preparing an adhesive separately. .

  The article may be an ampoule. Ampules are inherently easy to break, and when ampoules are stored in a storage container and transported, they may be damaged by external impacts. Furthermore, there is a high demand for making ampule storage containers at a low cost. Therefore, providing a storage container having sufficient ampoule protection capability at a low cost with a simple structure according to the present invention is a great advantage.

  Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 is a perspective view of an ampoule case 1 (case, container) as an example of a container according to the present invention. However, (a) shows a state where the ampule 30 (article) is not stored, and (b) shows a state where the ampule 30 is stored. The ampoule case 1 includes a bottom surface portion 10, an upper side surface portion 11, a lower side surface portion 12, a wave-like holding portion 13, a first elastic buffer portion 20, a second elastic buffer portion 21, and a third elastic buffer portion 22.

  The bottom surface portion 10 forms a bottom surface for the entire case 1. The upper side surface portion 11 is located on the upper side of the ampoule 30 in a state where the ampoule 30 is accommodated. The lower side surface portion 12 is located on the bottom side of the ampule 30 in a state where the ampule 30 is stored. In the case of the present embodiment, the bottom surface portion 10, the upper side surface portion 11, and the lower side surface portion 12 are made of, for example, a single sheet of paper, the folding line 16 between the bottom surface portion 10 and the upper side surface portion 11, and the bottom surface portion 10. 1 and the lower side surface portion 12 may be bent as shown in FIG.

  FIG. 2 shows only the wave-like holding part 13 and the first elastic buffer part 20. However, (a) is a perspective view, (b) is an AA cross-sectional view of (a), and (c) shows a state in which the ampoule 30 is sandwiched between (b). As shown in the figure, the wave-like sandwiching portion 13 has a shape obtained by deforming one sheet-like member having a rectangular shape. The shape is curved so as to alternately have crests 130 and troughs 135. And the wall part 137 is formed in the both sides of the figure in FIG.2 (b) across the bottom part of the trough part 135. FIG. The wavy sandwiching portion 13 may be formed from the beginning so as to have such a shape, or a flat sheet may be deformed. The valley 135 is fixed to the bottom surface 10.

  The ampoule 30 is inserted into the valley 135 so as to expand the valley 135. As a result, the ampoule 30 is held between the wall portions 137. For example, the wave-like holding part 13 may be made of a material having elasticity by being wave-like. For example, paper has this property. Thereby, when the ampoule 30 is clamped by the wave-like holding part 13, the ampoule 30 is held by receiving the force from the wall part 137 due to the elastic restoring force of the wave-like holding part 13.

  When the wave-like holding part 13 holds the ampoule 30, the first elastic buffer part 20 is formed at the part where the ampoule 30 contacts the valley part 135 and the wall part 137. The 1st elastic buffer part 20 may be formed in the continuous linear form on the surface of the wavelike clamping part 13 like FIG. 1, FIG. Moreover, it is good also as forming in a discontinuous linear form only in the site | part which contact | connects the ampoule 30 in each trough part 135 and the wall part 137. When forming only in the part which touches the ampoule 30 in each trough part 135 and wall part 137, the cost for the 1st elastic buffer part 20 production can be reduced.

  When an impact is applied from the outside, the ampoule 30 first absorbs the impact applied from the outside due to the elasticity of the wave-like clamping portion 13, and the vibration and motion applied to the ampoule 30 are further relaxed. . The impact is further reduced by the elasticity of the first elastic buffer portion 20. Thereby, the possibility that the impact that cannot be alleviated by only the wave-like sandwiching portion 13 is reduced to a level at which the ampule 30 is not damaged increases. As described above, in the ampoule case 1 of the present embodiment, the ampoule 30 is protected by the double buffering effect of the wave-like holding part 13 and the first elastic buffer part 20.

  Further, the ampoule case 1 includes a lower side surface portion 12 and a second elastic buffer portion 21 formed thereon as shown in FIG. FIG. 3 shows a side view of the ampoule case 1 in a state where the upper side surface portion 11 and the lower side surface portion 12 are folded. Normally, in this state, the ampoule 30 is transported by being inserted together with the ampoule case 1 in another box or the like.

  As shown in FIG. 3, when the case 1 is folded at the fold line 17, the second elastic buffer portion 21 moves to a position in contact with the bottom side of the ampoule 30 sandwiched by the wave-shaped sandwiching portion 13. The 2nd elastic buffer part 21 is formed in the position shown in Drawing 1 and Drawing 3, and has elasticity. It is known that the ampoule 30 is often damaged from the bottom side during transportation. Therefore, since the impact from the outside to the bottom side is mitigated by the second elastic buffer portion 21, the possibility of the ampule 30 being damaged is reduced.

  The second elastic buffer portion 21 may be formed in a continuous linear shape as shown in FIG. 1, or may be formed in a discontinuous linear shape only at a position in contact with the ampoule 30. In the case of forming a discontinuous line only at a position in contact with the ampoule 30, the cost for producing the second elastic buffer portion 21 can be reduced.

  Further, as shown in FIGS. 1 and 3, a third elastic buffer portion 22 is formed. The third elastic buffering portion 22 has elasticity, and when the ampule 30 held by the wave-like holding portion 13 is subjected to vibration or impact in the vertical direction in the figure, the ampule 30 is interposed between the lower end portion of the ampule 30 and the bottom surface portion 10. Intervene. The tip of the ampoule 30 is one of the parts that are easily damaged, but with the above structure, the possibility that the ampoule 30 is damaged due to contact with the bottom surface part 10 is reduced.

  The third elastic buffer portion 22 may be formed in a continuous linear shape as shown in FIG. 1, or may be formed in a discontinuous linear shape only at a position where there is a possibility of contact with the ampoule 30. In the case of forming a discontinuous line only at a position where the ampoule 30 may be in contact with the ampoule 30, the cost for producing the third elastic buffer portion 22 can be reduced.

  What is necessary is just to form the 1st elastic buffer part 20, the 2nd elastic buffer part 21, and the 3rd elastic buffer part 22 which concern on a present Example by hot melt. What is necessary is just to use the hot melt in a present Example as a buffering material, utilizing what is normally utilized as a hot-melt-type adhesive agent as it is.

  The hot melt adhesive may be composed only of a base polymer such as polyester and polyamide, but in order to reduce the viscosity at the time of melting, a base polymer, a tackifier resin, a wax, a plasticizer, It is good also as a structure which consists of a filler and antioxidant. Examples of the thermoplastic resin that can be used as the base polymer in the present invention are shown below.

  The base polymer may be, for example, a resin-based ethylene / vinyl acetate copolymer resin (EVA) -based, olefin-based, polyamide-based, or polyester-based polymer. Unlike EVA, it may be a copolymer polymerized using ethyl acrylate, acrylic acid, or methacrylic acid in addition to vinyl acetate. An example of such a copolymer is a resin called ionomer. The polyamide system is synthesized from dimer acid and diamine, and examples thereof include nylon-11 and nylon-12. The polyester system is based on a thermoplastic polyester synthesized from a dicarboxylic acid and a diol.

  A thermoplastic rubber (thermoplastic elastomer) may be used as the base polymer. Thermoplastic rubber (thermoplastic elastomer) is a rubber and thermoplastic resin that form a block copolymer. Typical examples include SBS (styrene / butadiene / styrene block copolymer) composed of polystyrene and polybutadiene, SIS (styrene / isoprene / styrene block copolymer), and the like. Also in SBS and SIS, a tackifier resin, a wax, a plasticizer, a filler, and an antioxidant are added.

  If a hot melt of a thermoplastic rubber (thermoplastic elastomer) is used, it has excellent heat resistance and cold resistance as well as high adhesive strength, so that it can be used at a wide range of temperatures.

  In the case of EVA, a typical composition is EVA 20% to 50%, tackifier resin 20% to 50%, wax 20%, plasticizer 20%, filler 20% or less, antioxidant It may be 1% or less.

  A urethane resin hot melt may be used as the heat resistant hot melt. For example, it is an oligomer of a urethane resin having an isocyanate group at the terminal. Thereby, heat resistance improves.

  Furthermore, the thermoplastic resins used for hot melt include the above-mentioned materials, including styrene resin, vinyl chloride resin, polypropylene resin, polyethylene resin, polyamide resin, acrylic resin, ABS resin, polycarbonate resin, polyacetal resin, pet resin. But you can. Polyvinylidene chloride, fluororesin, polymethyl methacrylate, polyamide, polyester, polyphenylenoxide, thermoplastic polyurethane, and polyacetal may also be used.

  The hot melt adhesive is formed into pellets, blocks, and sticks at room temperature, and is applied by being melted by heating using an applicator (coating machine). In the present embodiment, for example, a foam (foam) is formed by mechanically mixing gas into the hot melt material in an applicator (not shown), and then discharged from the nozzle and applied to the case 1. The elastic buffer portion 20, the second elastic buffer portion 21, and the third elastic buffer portion 22 may be formed.

  By simply applying (or placing) the hot melt discharged from the nozzle as it is on the surface of the case 1 while moving the nozzle (or case 1), the first elastic cushioning portion 20 is linearly formed as shown in FIG. A second elastic buffer portion 21 and a third elastic buffer portion 22 are formed. Therefore, the first elastic buffer portion 20, the second elastic buffer portion 21, and the third elastic buffer portion 22 are extremely easy to manufacture.

The perspective view of the ampoule case which concerns on this invention. However, (a) shows a state where no ampule is held, and (b) shows a state where an ampule is held. The figure which shows a wavelike clamping part. However, (a) is a perspective view, (b) is an AA cross-sectional view of (a), and (c) shows a state in which an ampoule is sandwiched between (b). The side view of an ampoule case.

Explanation of symbols

1 Ampoule case (container)
DESCRIPTION OF SYMBOLS 10 Bottom part 11 Upper side part 12 Lower side part 13 Wave-like clamping part 16, 17 Folding line 20 1st elastic buffer part 21 2nd elastic buffer part 22 3rd elastic buffer part 30 Ampoule (article)
130 Yamabe 135 Valley 137 Wall

Claims (4)

A container for storing an article having a cylindrical portion,
The sheet-like member is shaped so that peaks and valleys are alternately formed in a wave shape, and the top of all the peaks and the bottom of all of the valleys are parallel straight lines. A wavy clamping part that clamps the cylindrical part of the article with a wall part that is formed across the bottom part of the valley part;
In the wavy sandwiching portion, the portion of the article sandwiched between the wall portions is formed in a linear shape in a direction perpendicular to the straight line at a portion in contact with the cylindrical portion, and the wavy sandwiching portion of the article is A container comprising a first elastic buffering portion interposed between the wave-like clamping portion and the cylindrical portion of the article when clamping the cylindrical portion. A side surface portion formed at a position capable of contacting the article sandwiched between the wall portions of the wavy sandwiching portion;
The surface of the side portion further includes a second elastic buffer portion that is linearly formed in a direction orthogonal to the straight line and has elasticity,
2. The container according to claim 1, wherein the side surface portion indirectly contacts a part of the article sandwiched between the wall portions of the wave-like sandwiching portion with the second elastic buffer portion interposed therebetween.   The said 1st elastic buffer part or the 2nd elastic buffer part is a hot melt buffer part formed by apply | coating the foamed hot melt adhesive mixed with gas. Container.   The container according to any one of claims 1 to 3, wherein the article is an ampoule.

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