JP2008201479A - Airtight container and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure high sealing performance after breaking the seal of a film material while securing sealing performance before its use by closing a container opening with the film material. <P>SOLUTION: An airtight container 10A has a container body 12 having an opening neck section 16, a cap 22 threadably engaged to the opening neck section 16, and a spacer 18 controlling a thread engagement position of the cap 22. The cap 22 keeps in close contact with the inside surface of the opening neck section by invading through the container opening 16a in proportion to thread engagement operation onto the opening neck section 16, and a ring-shaped projection piece 26 is provided between the cap 22 and opening neck section 16. The spacer 18 is detachably installed on the container body 12, screwing of the cap 22 to a position where the ring-shaped projection piece 26 is not inserted into the opening neck section is permitted in an installation state of the spacer 18. Further thread engagement is restricted, and thread engagement of the cap 22 to a position where the ringlike projection piece 26 is invaded into the inside of the opening neck section is permitted in a removal state of the spacer 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hermetically sealed container suitable for containing a food, medicine, cosmetics, etc. containing mainly liquid or a fragrance component, and a method for producing the same.

Conventionally, for example, a container as disclosed in Patent Document 1 has been proposed as the above-described closed container. This container is a type of container in which a cap is screwed onto the mouth and neck of the container body, and a ring-shaped rib (seal part) is provided on the inner top surface of the cap. When the cap is attached to the mouth and neck, A ring-shaped rib penetrates into the inside of the mouth and neck and is in close contact with the inner peripheral surface of the mouth and neck, thereby sealing the container mouth.
JP 2003-231546 A

  By the way, in the field of pharmaceuticals and cosmetics, for the purpose of ensuring the virginity of the unopened container and the quality of the contents, a film member such as an aluminum film is attached to the tip of the mouth and neck to close the container mouth. There are products that circulate in a sealed state. Even for this type of product, it is often required to prevent liquid leakage and evaporation of volatile contents after opening, and therefore, it is effective to adopt a container structure as in Patent Document 1.

  However, since the thing of patent document 1 is a structure where a ring-shaped rib penetrates inside a mouth neck part by cap attachment as above-mentioned, in the product which plugs up a container mouth with a film member, if a cap is attached before opening of a film member, Application was difficult because the film member was torn by the ribs.

  The present invention has been made to solve such problems, and can seal the container opening with a film member to ensure the sealing property before use, and also has a high sealing property even after the film member is opened. The purpose is to ensure that

  In order to solve the above-described problems, the present invention provides a container body having a mouth and neck, a cap that is screwed to the mouth and neck to close the container mouth, and a screwing position of the cap to the mouth and neck. And the cap includes an intrusion portion that can enter into the mouth neck portion from the container mouth in accordance with a screwing operation to the mouth neck portion, and the mouth of the intrusion portion A seal portion that seals between the cap and the mouth-neck portion in an invading state to the neck portion, and the regulating member is detachably provided on at least one side of the cap and the container body, and in an attached state, While restricting the screwing of the cap from the first screwing position where the intruding portion is not intruding into the mouth and neck, the intruding portion enters into the mouth and neck in the detached state. The second to achieve the seal It is characterized in allowing screwing of the cap to the case position (claim 1).

  According to this container, the cap cannot be screwed forward from the first screwing position before the regulating member is removed. Therefore, the seal portion (invasion portion) does not enter the mouth / neck portion. On the other hand, when the regulating member is removed, the cap can be screwed to the second screwing position, and the seal portion (intrusion portion) is intruded inside the neck portion so that the gap between the mouth neck portion and the cap is reached. It becomes possible to seal. Therefore, in the case where the container body is accommodated in the container body and the film member is attached to the distal end portion of the mouth-and-neck portion so as to close the container opening (Claim 3), the film member is opened before the film member is opened. It becomes possible to maintain the high hermeticity of the contents in both later cases. That is, in the state where the regulating member is attached, the cap cannot be screwed forward from the first screwing position, so that the film member is not damaged at the seal portion (intrusion portion) of the cap, and the film member By this, the hermeticity of the container body can be properly maintained. Then, after opening the film member, if the cap (with the regulating member removed) is screwed to the second screwing position, the seal part (intrusion part) enters the inside of the mouth neck and the cap and mouth neck Therefore, the container body can be kept airtight by the sealing function of the seal portion.

  In such a configuration, the seal portion enters the mouth neck portion with the screwing operation to the mouth neck portion as the intrusion portion and comes into close contact with the inner side surface thereof, thereby allowing the cap and the neck portion to A main seal portion that seals the gap between the main seal portion and the neck portion by contacting the outer peripheral surface of the mouth and neck portion separately from the main seal portion. It is preferable to have an auxiliary seal portion supported from the outside.

  According to this configuration, when the cap is mounted (when the cap is mounted up to the second screwing position), the auxiliary seal portion suppresses the mouth-and-neck portion from being deformed (escaped) radially outward by being pushed by the main seal portion. In this way, the main seal portion can be reliably brought into closer contact with the inner peripheral surface of the mouth and neck, and the sealing performance between the mouth and neck and the cap can be improved.

  Various specific configurations of the restricting member are conceivable. For example, in the case where the container body has a shoulder portion provided continuously to the mouth and neck portion, the restricting member is attached to the mouth and neck portion. And can be configured as a spacer interposed between the cap and the shoulder portion (claim 4). The restricting member includes a cap that is screwed to the first screwing position, a shrink wrapping body that is attached to the container body so as to cover them, (Claim 5), And the sealing body (Claim 6) affixed over the said container main body may be sufficient.

  According to these configurations, it is possible to achieve restriction and release of the screwing position of the cap as described above with a simple configuration.

  Further, in the case of the container as described above, it is convenient for handling that the regulating member can be easily and quickly removed. Therefore, the restriction member is configured to be removable in a direction orthogonal to the central axis of the mouth-and-neck portion (Claim 7), or provided with a knob for removal (Claim). Item 8) is preferred.

  In addition, in a container in which a film member is attached to the tip of the mouth-neck portion to ensure hermeticity, the film member is often welded to the tip of the mouth-neck portion. It is conceivable that the seal is crushed and swells in the thickness direction, which affects the sealing performance between the mouth neck and the cap. However, such inconvenience can be eliminated by forming the thickness of the tip of the mouth-and-neck portion of the container body thinner than the thickness of the rear portion thereof (claim 9). That is, the container body is formed in advance so that the wall thickness at the tip of the mouth and neck is thinner than the wall thickness at the rear side of the mouth and neck. A film member is welded to the distal end portion of the mouth and neck so as to close the mouth (claim 10).

  In this way, even if the tip of the neck of the mouth is somewhat crushed by the welding of the film member, it is possible to suppress the swelling of the tip of the neck of the mouth and neck in the thickness direction, thereby reducing the influence on the sealing performance. It becomes possible.

  The sealed container according to the present invention can restrict the screwing position of the cap to the first screwing position by the regulating member even when the container mouth is closed with the film member. The film member is not damaged at the portion). In addition, after opening the film member, if the cap is screwed to the second screwing position with the regulating member removed, the seal portion (intrusion portion) is intruded into the mouth neck portion, Can be sealed. Therefore, the container opening can be closed with a film member to ensure the sealing performance before use, and after opening, the sealing between the cap and the neck of the neck by the sealing section can ensure a high sealing performance.

  A preferred embodiment of the present invention will be described with reference to the drawings.

  1 and 2 schematically show a sealed container according to a first embodiment of the present invention. FIG. 1 (a) is a plan view, and FIG. 1 (b) is a side view (partially sectional view). ) Shows each sealed container. Moreover, FIG. 2 has shown the principal part of FIG.1 (b) with the enlarged view.

  A hermetically sealed container 10A (hereinafter abbreviated as container 10A) shown in these drawings contains a wiping cosmetic product (not shown) in which a pad-like base material such as a nonwoven fabric is impregnated with an alcoholic lotion component. Yes. Note that the container 10A is not limited to the cosmetics.

  The container 10A is composed of a container main body 12, a cap 22 and a spacer 18 that are detachably attached to the container main body 12, all of which are polypropylene, polyethylene, polyethylene terephthalate, polyethylene naphthalate, polyester, and soft polyvinyl chloride. And synthetic resin such as polycarbonate. In order to ensure barrier properties, the container body 12 and the cap 22 are made of, for example, a laminate of a polyolefin resin (polyethylene, polypropylene, etc.) and an ethylene / vinyl alcohol copolymer. May be. Further, the container body 12 may be made of glass.

  The container body 12 is formed in a box shape having a square shape in plan view, and a cylindrical mouth / neck portion 16 having a slightly wide container port 16a is provided on the upper portion thereof. A male screw 17 is formed on the outer peripheral surface of the mouth-and-neck portion 16, and the container port 16 a is closed by screwing the cap 22 onto the mouth-and-neck portion 16.

  Further, as shown in FIG. 2, a film member 20 having an easy peel property (easy-opening property) such as an aluminum laminate film is welded to the tip of the mouth-and-neck portion 16 (the upper end in FIG. 1B). In this way, the container port 16 a is closed by the film member 20 separately from the cap 22. That is, FIG. 1 shows a state before the cosmetic is used (before opening). In order to ensure barrier properties, the film member 20 may be a laminate composed of, for example, PET / adhesive layer / aluminum foil / adhesive layer / easy peel layer (PE + PP blend, EMMA, etc.), PET / aluminum foil / coat You may use the laminated body comprised by an agent, aluminum vapor deposition PET / adhesion layer / easy peel layer, etc.

  The container body 12 is provided with the ring-shaped spacer 18 (regulating member) for regulating the screwing position of the cap 22 with respect to the mouth-and-neck portion 16. The spacer 18 is externally fitted to the root portion of the mouth-and-neck portion 16, and is interposed between a cap 22 screwed to the mouth-and-neck portion 16 and the shoulder portion 14 of the container body 12 as will be described later. In addition, the screwing position of the cap 22 is restricted.

  Although not shown in detail, the spacer 18 has a cut portion at one place in the circumferential direction, and can be detached from the mouth and neck portion 16 by expanding the cut portion. Instead of the cut portion, an easily breakable portion that can be easily broken by applying a force in the separating direction may be provided at one or a plurality of locations in the circumferential direction of the spacer 18.

  On the other hand, the cap 22 has, on its inner peripheral surface, a female screw 24 that engages with the male screw 17 of the mouth-and-neck portion 16. A pair of inner and outer ring-shaped protrusions 26 and 27 are integrally formed on the inner top surface of the cap 22 so as to correspond to the mouth and neck portion 16.

  The ring-shaped projecting pieces 26 and 27 are provided concentrically with an interval slightly narrower than the thickness of the mouth-and-neck portion 16. In particular, the inner ring-shaped projecting piece 26 has an outer ring-shaped projecting piece 26. Compared with the piece 27, the protrusion dimension from the inner top surface of the cap 22 (the vertical dimension in FIG. 2) is provided, so that the cap 22 can be flexibly displaced in the radial direction. As a result, when the cap 22 is tightened to a screwing end position (second screwing position), which will be described later, with respect to the mouth-and-neck portion 16, the ring-shaped projecting pieces 26 and 27 move the tip portion of the mouth-and-neck portion 16 in the thickness direction. The inner ring-shaped protruding piece 26 is in close contact with the inner peripheral surface of the mouth-and-neck portion 16 and seals between the mouth-and-neck portion 16 and the cap 22. That is, in this embodiment, these ring-shaped protrusions 26 and 27 correspond to the seal portion according to the present invention, and the inner ring-shaped protrusion 26 of these ring-shaped protrusions 26 and 27 is the main according to the present invention. The seal portion (intrusion portion) and the outer ring-shaped protrusion 27 correspond to the auxiliary seal portion according to the present invention.

  The cap 22 is regulated by the spacer 18 before the spacer 18 is removed from the container body 12, and the screwing position of the cap 22 with respect to the neck 16 is restricted. When the spacer 18 is removed, the restriction is released. It has come to be. Specifically, before the spacer 18 is removed, the spacer 18 is interposed between the cap 22 and the shoulder portion 14 so that the screwing end position of the cap 22 is raised from the original screwing end position. As a result, as shown in FIG. 2, the cap 22 is allowed to be tightened up to the first screwing position where the ring-shaped projecting piece 26 is not intruded into the mouth-and-neck portion 16 and beyond. Tightening is regulated. On the other hand, after the spacer 18 is removed, the original screwing end position beyond the first screwing position, that is, the position where the distal end portion of the mouth-and-neck portion 16 is sandwiched between the ring-shaped projecting pieces 26 and 27 (first step). The cap 22 can be tightened up to 2).

  According to the container 10A as described above, before the spacer 18 is removed, the screwing position of the cap 22 is restricted to the first screwing position, so that the ring-shaped protruding piece 26 can be prevented from entering the mouth-neck portion 16. Therefore, even when the cap 22 is attached to the container main body 12, the ring-shaped projecting piece 26 does not damage the film member 20, and the sealing performance before opening can be ensured satisfactorily.

  After the opening, if the spacer 18 is removed and the cap 22 is tightened to the second screwing position, the ring-shaped projecting piece 26 of the cap 22 is connected to the inner peripheral surface of the mouth and neck 16 as shown in FIG. It is possible to seal between the cap 22 and the mouth-and-neck portion 16 in close contact with each other, and to ensure sealing performance after opening. Therefore, according to the container 10A, the container opening 16a of the container body 12 is closed with the film member 20 to ensure the sealing performance before opening, and the high sealing performance can be ensured after opening.

  Moreover, structurally, the spacer 18 is detachably provided around the mouth-neck portion 16 of the container body 12 so that the screwing position of the cap 22 can be regulated and released by the spacer 18. The above-described effects can be achieved with a simple structure. In particular, since the spacer 18 has a ring-like configuration with a cut portion at one place in the circumferential direction as described above, the spacer 18 is placed on the side of the mouth-neck portion 16 (perpendicular to the central axis) while expanding the cut portion. Can be easily removed from the mouth-and-neck portion 16. Therefore, the screwing position restriction of the cap 22 can be released very easily.

  In addition, in the container 10A in which the film member 20 is welded to the tip of the mouth-and-neck portion 16 like the container 10A shown in FIG. 1, the tip of the mouth-and-neck portion 16 is crushed when the film member 20 is welded. The inconvenience that the sealing performance between the mouth-and-neck portion 16 and the cap 22 is affected is considered. That is, it is conceivable that the tip of the mouth-and-neck portion 16 is crushed and it becomes difficult to sandwich the ring-shaped protruding pieces 26 and 27. Therefore, in order to avoid such an inconvenience, when the film member 20 is welded to the tip of the mouth-and-neck portion 16, the thickness of the tip of the mouth-and-neck portion 16 is later than that as shown in FIG. After the container body 12 is formed in advance so that the wall thickness is thinner than the side wall thickness (so that the thickness of the welded portion is thinner than the thickness of the mouth-and-neck portion 16), and cosmetics are stored in the container body 12 The film member 20 is preferably welded to the tip of the mouth and neck portion 16 so as to close the container opening 16a. In this way, even if the tip of the mouth / neck portion 16 is somewhat crushed when the film member 20 is welded, the swelling of the mouth / neck portion 16 in the thickness direction can be suppressed as shown in FIG. Thus, the above inconvenience can be favorably avoided.

  In this case, the shape of the distal end (welded portion) of the mouth-and-neck portion 16 can be appropriately selected depending on the resin material used, the molding conditions of the container, the material of the film member 20, the welding conditions, and the like. A cross-section corresponding to ()) Various shapes such as a stepped shape, a mountain shape, a triangular shape, and a trapezoidal shape are applicable.

  In the container 10A of the first embodiment described above, the following configuration can be adopted as the spacer 18.

  For example, a device as shown in FIG. 5 may be provided. That is, the spacer 18 of the container 10A shown in FIG. 5 has an arc-shaped main body portion 18a made of a slightly hard synthetic resin material having elasticity, and the mouth-and-neck portion 16 is moved by the elastic force of the main body portion 18a. It is designed to be tightened from the outside. At the center in the longitudinal direction of the main body 18a, there is integrally formed a knob 18b that protrudes to the side of the mouth-and-neck part 16, and this knob 18b is picked and pulled sideways (in the direction indicated by the arrow in the figure). Thus, the spacer 18 is removed. According to such a configuration of the spacer 18, there is an advantage that the spacer 18 can be removed more easily by picking the knob 18 b.

  In addition to providing the spacer 18 separately from the container body 12 and the cap 22 as shown in FIGS. 1 and 5, the spacer 18 may be integrally formed with the cap 22 as shown in FIG. 6. That is, the spacer 18 shown in FIG. 5 includes a ring-shaped main body portion 18c in which cuts 18d are formed at regular intervals in the circumferential direction, and a knob portion 18e in the middle portion of the main body portion 18c. The cap 22 is connected to the lower end of the cap 22 through a cutting groove 18f extending in the circumferential direction so as to be separable (integrated molding). In this configuration, the cap 22 is removed by separating (separating) the spacer 18 from the cap 22 while picking and pulling the knob 18e. According to such a configuration, the cap 22 and the spacer 18 can be integrally formed using the same mold, so that productivity is good and the spacer 18 is unexpectedly detached from the container 10A before opening. There is an advantage that it can be avoided.

  Next, a sealed container according to the second embodiment of the present invention will be described.

  7 and 8 schematically show a sealed container according to the second embodiment, FIG. 7 is a perspective view, and FIG. 8 is a cross-sectional view of the main part, showing the sealed container. In addition, since the main structure of this airtight container is common with the thing of 1st Embodiment, the difference with 1st Embodiment is demonstrated in detail in the following description.

  A sealed container 10B (hereinafter, abbreviated as container 10B) shown in the figure shows a state before the cosmetic is used (before opening). In the container 10B, shrink packaging is applied to almost the entire container body 12 and the cap 22, and the screwing position of the cap 22 is regulated by the shrink film 30 (corresponding to the shrink packaging body according to the present invention). Yes. That is, in the second embodiment, a shrink package is provided instead of the spacer 18 as a regulating member according to the present invention, and the configuration is different from the first embodiment in this respect.

  More specifically, as shown in FIG. 8, the container 10 </ b> B is in a state in which the cap 22 is tightened to the first screwing position where the ring-shaped projecting piece 26 is not intruded into the mouth-neck portion 16. In this state, the shrink film made of the heat-shrinkable film is formed over substantially the entire container body 12 and the cap 22, more specifically, substantially the entire container 10 </ b> B excluding the top center part of the cap 22 and the bottom center part of the bottle body 11. 30 is mounted in close contact. The container body 12 and the cap 22 are integrally covered with the shrink film 30 in this manner, whereby the cap 22 is restrained (fixed) to the container body 12 so as not to be operated. In the drawings, the outline of the film 30 is indicated by a bold line in order to clearly show the shrink film 30. The material of the shrink film 30 is not particularly limited in the present invention. For example, polyolefin resin (polyethylene, polypropylene, etc.) resin, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polystyrene, polyester, polycarbonate, polyacrylonitrile. Further, thermoplastic resins such as ethylene vinyl acetate copolymer, ethylene / vinyl alcohol copolymer, ethylene / methacrylic acid copolymer, and nylon are applied.

  The shrink film 30 is formed with a pair of perforated opening lines 32 extending in the vertical direction from the top portion of the cap 22 to the bottom surface portion of the container main body 12, and the upper end along the opening line 32. A knob 34 is integrally provided at the edge. That is, the shrink film 30 can be easily removed by picking the knob 34 and breaking the film 30 in the longitudinal direction along the opening line 32.

  In the container 10B of the second embodiment as described above, before the shrink film 30 is removed, the screwing position of the cap 22 is restricted to the first screwing position, and the mouth-and-neck part 16 of the ring-shaped protruding piece 26 is moved. Therefore, the sealing performance before opening can be secured well. Then, if the shrink film 30 and the film member 20 are removed and the cap 22 is tightened to the second screwing position, the ring-shaped projecting piece 26 of the cap 22 is brought into close contact with the inner peripheral surface of the mouth-and-neck portion 16. It is possible to seal between 22 and the mouth-and-neck portion 16, and to ensure the sealing performance after opening. Therefore, also in the said container 10B which concerns on 2nd Embodiment, the effect similar to the container 10A of 1st Embodiment can be enjoyed.

  In addition, although the construction method of shrink wrapping is not particularly limited, for example, in the present embodiment, the first screwing position as described above with respect to the container body 12 in which cosmetics are accommodated and the film member 20 is mounted. In the state where the cap 22 is screwed up, the shrink film 30 is wound around the container body 12 and the cap 22, or the shrink film 30 (cut film) formed in a cylindrical shape in advance is attached. And the shrink film 30 is heat-shrinked by heating the shrink film 30 with a heating device, whereby the shrink film 30 is brought into close contact with the container body 12 and the cap 22.

  By the way, container 10A, 10B mentioned above is an example of preferable embodiment of the airtight container which concerns on this invention, The concrete structure can be suitably changed in the range which does not deviate from the summary of this invention.

  For example, the member that restricts the screwing position of the cap 22 (the restricting member of the present invention) is not limited to the spacer 18 or the shrink film 30 as described above, and has a configuration similar to the first embodiment. A pin-shaped member that can be pulled out in the radial direction is inserted into the outer peripheral surface of the mouth-and-neck portion 16 of the container body 12 and the screwing position of the cap 22 is regulated by this pin member. Further, as a configuration similar to the second embodiment, a seal body (label seal, pop (POP) seal, etc.) is pasted over the container body 12 and the cap 22 so that the cap 22 cannot be operated with the seal material. The cap 22 may be configured so as to be restrained (fixed) to thereby restrict the screwing position of the cap 22. In this case, as the surface base material constituting the sealing material, film base materials such as polyolefin resin (polyethylene, polypropylene, etc.) resin, polystyrene, polyester, vinyl chloride, various synthetic papers (YUPO (registered trademark)), and high-quality paper Paper substrates such as kraft paper, art paper, mirror-coated paper, cast-coated paper, recycled paper, and impregnated paper can be applied. In short, if the screwing position of the container main body 12 can be restricted to the first screwing position in a state where it is attached to at least one side of the container main body 12 and the cap 22, The configuration of the regulating member may be any configuration.

  Further, in the containers 10A and 10B of the above-described embodiment, the ring-shaped projecting pieces 26 and 27 are integrally formed with the cap 22, but as shown in FIG. 9, the cap 22 is composed of a cap main body 22a having a female screw 24, It is good also as a structure which comprises the inner member 22b fitted by the inner top | upper surface part of this cap main body 22a, and provides the said ring-shaped protrusions 26 and 27 in this inner member 22b. According to such a configuration, the inner member 22b is made of a material different from the cap main body 22a, for example, a soft material compared to the cap main body 22a. It becomes possible to improve the sealing performance between 16 and the cap 22. In this case, the material of the inner member 22b is preferably a material such as polypropylene, polyethylene, polyethylene terephthalate, polyethylene naphthalate, polyester, soft polyvinyl chloride, polycarbonate, thermoplastic elastomer, silicon rubber, isoprene rubber, butyl rubber, For example, linear polyethylene and thermoplastic elastomer are particularly suitable for enhancing the sealing property. Metallocene-catalyzed linear polyethylene, styrene-based thermoplastic elastomers, olefin-based thermoplastic elastomers, and the like are also suitable for improving the sealing property.

  In the containers 10A and 10B of the above embodiment, a pair of inner and outer ring-shaped protrusions 26 and 27 are provided on the inner top surface of the cap 22, but the outer ring-shaped protrusions 27 are omitted and the inner ring shape is omitted. The structure provided only with the protrusion 26 may be sufficient. However, in the case of the configuration having only the ring-shaped projecting piece 26, the mouth-and-neck portion 16 is pressed by the ring-shaped projecting piece 26 and deformed radially outward (escape), and the sealing performance by the ring-shaped projecting piece 26 may be reduced. Therefore, in order to improve the sealing performance, a pair of inner and outer ring-shaped protrusions 26 and 27 are provided as in the embodiment, and the tip of the neck portion 16 is thickened by the ring-shaped protrusions 26 and 27. It is desirable that the structure is sandwiched in the direction.

  Further, in this embodiment, the inner ring-shaped projecting piece 26 is formed so as to be able to be deflected and displaced in the radial direction, so that the inner ring-shaped projecting piece 26 comes into close contact with the inner peripheral surface of the mouth-and-neck portion 16 and the mouth. While sealing between the neck 16 and the cap 22, the outer ring-shaped protruding piece 27 is configured to support the intimate portion of the inner ring-shaped protruding piece 26 from the outside of the mouth-and-neck portion 16. In the opposite configuration, that is, the outer ring-shaped projecting piece 27 is formed to be able to bend and displace in the radial direction, so that the outer ring-shaped projecting piece 27 comes into close contact with the outer peripheral surface of the mouth-and-neck portion 16 and The inner ring-shaped projecting piece 26 may support the close contact portion of the outer ring-shaped projecting piece 27 from the inside of the mouth-and-neck portion 16 while sealing between the cap 16 and the cap 22.

  In the container 10A, 10B of the above embodiment, the film member 20 is welded to the tip of the mouth-and-neck portion 16. Of course, the film member 20 is attached to the mouth-and-neck portion 16 with an adhesive or the like. It may be a thing. Further, instead of the film member 20, for example, a member such as an inner lid or packing that is fitted into the mouth-and-neck portion 16 may be provided to ensure the sealing property of the container body 12 before opening. However, when problems such as operability during use and adsorption of components contained in the stored item are concerned, it is preferable to provide the film member 20 as in the embodiment to close the container port 16a.

It is the schematic which shows the airtight container which concerns on the 1st Embodiment of this invention ((a) is a top view, (b) is a side view (partial sectional view)). It is a principal part enlarged view of FIG.1 (b) which shows the cross section of an airtight container (it shows in detail the mounting state of the cap before spacer removal). It is sectional drawing of an airtight container (The mounting state of the cap after spacer removal is shown). It is a figure explaining the manufacturing method of the airtight container which concerns on this invention ((a) is before film member welding, (b) is sectional drawing which shows the state of the container main body after film member welding). It is a top view which shows the other airtight container which concerns on this invention. It is a top view which shows the other airtight container which concerns on this invention ((a) is a top view, (b) is sectional drawing). It is a perspective schematic diagram showing an airtight container concerning a 2nd embodiment of the present invention. It is principal part sectional drawing of an airtight container. It is sectional drawing which shows the other airtight container which concerns on this invention.

Explanation of symbols

10A, 10B Sealed container 12 Container body 14 Shoulder portion 16 Mouth neck portion 16a Container port 18 Spacer 20 Film member 22 Cap 26, 27 Ring-shaped projecting piece 30 Shrink film

Claims (10)

A container body having a mouth-and-neck portion, a cap that closes the container mouth by being screwed to the mouth-and-neck portion, and a regulating member that regulates a screwing position of the cap with respect to the mouth-and-neck portion;
The cap includes an intrusion portion that can enter into the mouth and neck portion from the container mouth in accordance with a screwing operation to the mouth and neck portion, and the cap and the cap in an intrusion state of the intrusion portion into the mouth and neck portion. With a seal part that seals between the mouth and neck,
The restricting member is detachably provided on at least one side of the cap and the container main body, and from the first screwing position where the intrusion portion is not intruded with respect to the mouth-neck portion in the attached state. The cap is screwed to the second screwing position where the intrusion portion enters the mouth-neck and achieves the seal in the removed state. Characterized closed container. The sealed container according to claim 1,
The seal portion mainly seals between the cap and the mouth and neck portion by intruding into the mouth and neck portion in close contact with the inner surface of the mouth and neck portion as the intrusion portion is screwed into the mouth and neck portion. An auxiliary member for supporting a close contact portion of the main seal portion with respect to the mouth / neck portion from the outside of the mouth / neck portion by contacting the outer peripheral surface of the mouth / neck portion separately from the main seal portion; An airtight container having a seal portion. In the sealed container according to claim 1 or 2,
An airtight container, wherein a container is accommodated in the container body, and a film member is attached to a distal end portion of the mouth / neck portion so as to close the container mouth. In the airtight container according to any one of claims 1 to 3,
The container body has a shoulder portion provided continuously to the mouth-neck portion,
The said restriction member consists of a spacer attached to the said mouth neck part and interposed between the said cap and the said shoulder part, The airtight container characterized by the above-mentioned. In the airtight container according to any one of claims 1 to 3,
The airtight container, wherein the restricting member is a cap that is screwed to the first screwing position and a shrink wrapping body that is attached to the container main body so as to cover them. In the airtight container according to any one of claims 1 to 3,
The airtight container, wherein the restricting member is a cap that is screwed to the first screwing position and a seal body that is pasted across the container body. In the airtight container according to any one of claims 1 to 6,
The airtight container, wherein the restricting member is attached to the cap or the container body in a state where the restricting member is removable in a direction perpendicular to the central axis of the mouth-and-neck portion. The sealed container according to any one of claims 1 to 7,
The said restriction member is provided with the knob | pick part for removal, The airtight container characterized by the above-mentioned. In the sealed container according to claim 1 or 2,
The closed container is characterized in that the mouth / neck portion of the container body is formed such that the thickness of the tip is thinner than the thickness of the rear portion. It is a manufacturing method of the airtight container according to claim 3,
The container body is formed in advance so that the wall thickness at the tip of the mouth and neck is thinner than the wall thickness at the rear side of the container. A method for producing a hermetic container, wherein a film member is welded to a distal end portion of the mouth-and-neck portion so as to be closed.

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