WO2014184858A1

WO2014184858A1 - Cap structure for container

Info

Publication number: WO2014184858A1
Application number: PCT/JP2013/063341
Authority: WO
Inventors: 利明岩瀬
Original assignee: 船橋電子株式会社
Priority date: 2013-05-13
Filing date: 2013-05-13
Publication date: 2014-11-20
Also published as: JPWO2014184858A1

Abstract

The purpose of the present invention is to provide a structure that separates in such a way that a separating protrusion, once separated, does not catch on the edge of an opening in the upper wall surface of the cap of a container such as a vial. This cap structure for a container such as a vial is characterized in that a lower part (41a) of an outside peripheral wall (41) of a separating protrusion (4) contacts a thin part (3) and rises upward from the thin part (3), and the bottom part of the separating protrusion (4) is furnished with a protruding part (5) arranged along the thin part (3) and protruding downward, the lower edge being set to the equivalent of the length to which a seal member (12) may be reboundably pushed in.

Description

Container cap structure

The present invention relates to an improvement in the cap structure of a container in which a container containing a liquid such as a liquid medicine for injection is sealed with a sealing material such as a rubber stopper and the opening and the sealing material are covered with a cap.

Conventionally, as a cap of a vial bottle or the like, for example, in the container lid structure of Japanese Patent Laid-Open No. 6-31758, a series of thin annular portions that are cut by a force more than a predetermined force applied to the upper surface portion of the cap are formed. A projecting cylinder part projecting in a direction substantially perpendicular to the upper surface part from the position of the annular thin part and an upper surface part for pressing covering the tip of the projecting cylinder part are integrally formed on the upper surface part, and the pressing When the upper surface portion is pushed toward the sealing plug, the thin portion is cut and the member located inside the cut thin portion is separated from the cap, and separated from the cap when the force pushing the upper surface portion for pressing is removed. A structure is disclosed in which the member is repelled and moved in the direction opposite to the sealing plug by the projecting arm of the elastic sealing plug.
However, in the above configuration, since the fracture surface of the disk part is separated in a form that is substantially parallel to the protrusion fracture surface, the resistance is large and the separation cannot be performed.
On the other hand, in the container lid of Japanese Examined Patent Publication No. 4-76871, so that the thin-walled portion is folded when the protruding portion is broken, the fold opening is not turned back so that the operator does not cut the fingertip. The structure to be formed is disclosed.
However, the above-described configuration is a method of pushing down the protruding portion from the side, and it is necessary to lengthen the protruding portion.
In view of this, the present applicant has disclosed in Japanese Patent No. 4902820 a separation disk part formed on the upper wall surface of the cap in contact with the upper surface of the sealing member, and a separation guide thin part serving as the outer peripheral edge of the disk part. And a protruding portion integrally formed with the disc portion and a projection portion for pressing when separated, a position spaced radially from the axis of the projection portion at the disc portion or the bottom portion of the projection portion One or a plurality of protrusions projecting downward are provided on the seal member, and the protrusion can be easily detached with a finger and removed from the seal member after the cap is attached and sealed on the seal member in a state where the seal member is pushed in a repulsive manner. In this way, it has achieved reasonable results.
The Applicant has conducted further diligent research and, while having a simple configuration, a part of the separated part does not get caught under the opening edge of the cap and is surely separated and removed from the cap. It came to invent the structure which can do.

JP-A-6-31758 Japanese Patent Publication No. 4-76871 Japanese Patent No. 4902820

The problem to be solved by the present invention is to form a thin guide portion along the outer peripheral lower portion of the separation protrusion, and to provide a protrusion projecting downward along the thin portion on the separation protrusion. By providing, when the separation projection part is separated from the cap along the thin part, it is easy and sure with a finger without forming a flange part protruding outward at the lower part of the outer peripheral wall of the separation projection part. An object of the present invention is to provide a cap structure for a container such as a vial in which the separation protrusion can be removed from the seal member.

According to the present invention, an elastic seal member that seals the opening of the container, a cap that covers the seal member and is fitted onto the opening, and a portion corresponding to the upper surface of the seal member on the upper wall surface of the cap In the cap structure of the container provided with the separation projection formed integrally through the annular thin portion for separation,
The lower part of the outer peripheral wall of the separation protrusion is in contact with the thinnest annular thin part on the upper wall surface of the cap, and protrudes upward from the thin part,
The bottom portion of the separation protrusion is provided with a protrusion that is disposed along the thin portion and protrudes downward and has a lower end that is set to a length that pushes the seal member in a repulsive manner. .

In the present invention, the lower part of the outer peripheral wall of the separation projection part is cut from the thin part by pushing the separation projection part with the finger, so that the flange protrudes outward from the lower part of the outer peripheral wall. The lower part of the outer peripheral wall of the separating projection is raised with respect to the mouth edge of the opened cap without forming a shape portion, so that the lower part of the outer peripheral wall of the separating protrusion is the mouth edge of the opening. There is no risk of getting underneath.
Therefore, the separation projection can be reliably raised on the seal member by the repulsive force through the projection, and the separation projection can be removed on the seal member.

2 is a cross-sectional view of a cap according to Embodiment 1. FIG. 3 is a plan view of a cap according to Embodiment 1. FIG. It is an enlarged view of the thin part of the cap of Example 1. FIG. It is sectional drawing of the container which attached the cap of Example 1. FIG. (A) is sectional drawing of the cap of Example 2, (b) is the elements on larger scale of a thin part. These are sectional drawings of the container of the state which attached the jig | tool for separation to the cap of Example 1. FIG. It is sectional drawing of the container which shows the separation state of the protrusion part for separation. (A) is sectional drawing of the container of the state which attached the cap of another Example, (b) is sectional drawing of the container which shows a separated state. (A) is sectional drawing of the cap of a synthetic resin, (b) is the bottom view. It is sectional drawing of the cap which reversed the notch of the thin part of the cap of a synthetic resin.

According to the present invention, a thin portion is provided along the lower portion of the outer peripheral wall so as not to form an outward projecting portion at the lower portion of the outer peripheral wall of the separated projection portion, and the bottom surface of the separation projection portion is provided. With the repulsive force of the protrusions provided, it was realized that the separation protrusions were reliably separated from the cap.
Hereinafter, an embodiment in which the container cap structure of the present invention is applied to a vial cap structure will be described with reference to the drawings.

The cap 1 of the first embodiment shown in FIGS. 1 and 2 is made of metal, and is a vial in which a sealing member 12 having elasticity such as rubber or elastomer is fitted into the opening 11 of the vial 10 without any gap. The bottle 10 has a structure in which the sealing member 12 is covered and fitted into the opening 11 and fixed.
Here, the shape of the upper surface of the seal member 12 is illustrated as a horizontal plane in the illustrated example, but a shape in which a later-described protrusion 5 is pressed, or other, an elastic repulsive force can be applied to the protrusion 5. It is good also as arbitrary shapes.

The cap 1 hangs along the outer periphery of the cap upper wall surface 1A having a circular shape in plan view covering the opening 11 and the outer surface of the cap upper wall surface 1A, and is externally fitted to the outer peripheral wall of the opening 11 of the vial 10 on the inner surface. It consists of a cylindrical cap peripheral wall portion 1B to be fixed.
The cap upper wall surface 1A is formed integrally with a thin guide portion 3 for separation, and is formed with a separation projection 4 that protrudes upward and is pressed downward during separation.

In this embodiment, the thin-walled portion 3 is formed of a groove formed in an annular shape in contact with the lower portion 41a of the outer peripheral wall 41 of the separation projection 4.
The thin-walled portion 3 is the thinnest portion 3a in which the portion of the outer peripheral wall 41 in contact with the lower portion 41a is the thinnest portion 3a with the thinnest wall thickness at the cap upper wall surface 1A. From the outside toward the thinnest part 3a, the cross section is cut out so as to gradually become thinner.

Accordingly, when the separation projection 4 is pressed downward, the thinnest part 3a, which is the most fragile, cracks and breaks from the lower part 41a of the outer peripheral wall 41 to be accurately separated, so that the lower part 41a has a flange shape. No extended burr or the like is formed.
Here, in the illustrated example, the inclined surface of the thin wall portion 3 is formed in a groove in which the upper surface side of the cap upper wall surface 1A is recessed, but in a groove shape in which the bottom surface side is recessed, or in which both the upper surface and the bottom surface are recessed. It may be formed.
In the present embodiment, the groove of the thin portion 3 is inclined in cross section, but only the thinnest portion may be formed if a flange-like burr does not occur.

Next, the protrusion 4 for separation is arranged along the thin portion 3 and protrudes downward from the lower portion 41a of the outer peripheral wall 41 so that the lower end is set to a length that pushes the seal member 12 in a repulsive manner. Part 5 is provided.
In the case of the present embodiment, the protrusion 5 has a cross-sectional channel shape having a hollow portion 5a that is open at the top wall 41 of the separation protrusion 4 and extends downward by drawing, and extends along the thin portion 3. It is formed in an annular shape.

Further, as described above, the thin-walled portion 3 has the thinnest portion 3a at the portion in contact with the lower portion 41a of the outer peripheral wall 41 of the separation projection 4 so that when the separation projection 4 is pushed downward, In addition, a crack is generated along the thinnest portion 3a and it breaks. When the separation projection 4 is separated from the upper wall surface 1A of the cap 1 and is separated, the lower portion 41a of the outer peripheral wall 41 has an outer side. A flange-like portion projecting toward is not formed.

The inner peripheral edge of the opening 2 formed by the separation protrusion 4 cut along the thin wall portion 3 formed on the cap upper wall surface 1A intersects with the lower portion 41a of the outer peripheral wall 41 separated from each other. Therefore, there is no possibility that the lower portion 41a of the outer peripheral wall 41 of the separation projection 4 that rises due to the repulsive force of the projection 5 will enter under the inner peripheral edge of the opening 2 (see FIG. 5).

FIG. 3 shows that the separation protrusion 4 protrudes outwardly from the outer periphery of the top wall 42 of the separation protrusion 4 in the whole or part of the outer peripheral wall 41 below the ceiling wall 42. This is a different embodiment when set.
Here, the top wall 42 may be any shape that can be easily pressed, and is a horizontal surface in the illustrated example. However, the top wall 42 may be an inclined surface, a stepped surface, a non-slip surface, or any other surface. Can do.

In the second embodiment, the outer peripheral wall 41 ′ of the separation projection 4 has a substantially trumpet-shaped cross-sectional shape that extends upward from the lower part and gradually spreads outward from the midway position and continues to the top wall 42. The top wall 42 is wider than the lower body, and the corners of the top wall 42 are rounded so that it can be easily hooked down.

Further, in this embodiment, the thin portion 3 includes a base thin portion 31 in which the thickness of the cap upper wall surface 1A is made the same, and an outer peripheral wall 41 ′ of the projection 4 for separation through the base thin portion 31. The thin portion main body 30 is gradually thinned toward the lower portion 41 a, and the thinnest portion 3 a that is the thinnest and is in contact with the lower portion of the outer peripheral wall is formed to be the tip of the thin portion main body 30. (See FIG. 3B).
Therefore, even in this embodiment, at the time of separation, the thinnest portion 3a is cracked and broken, and is separated from the lower portion 41a of the outer peripheral wall 41.

In the above embodiment, the shape in which the entire circumference of the top wall 42 protrudes outward is illustrated, but a shape in which only a part or a plurality of portions of the outer periphery protrudes outward may be used.
Since other shapes are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.

FIG. 4 shows an embodiment using a jig 20 used when the separation projection 4 of the first embodiment is separated.
The jig 20 includes a leg portion 21 that can be inserted into the hollow portion 5a of the annular protrusion 5 and a pressing base portion 22 that is formed on the outer periphery that is larger than the outer periphery of the top wall 42 of the separation protrusion 4. ing.
In this jig 20, like the cap, when the leg portion 21 is inserted into the hollow portion 5a, the pressing base portion 22 is separated and overlaps the top wall surface 4a of the projection portion 4 so that the pressing surface can be enlarged. The shape similar to that of the top wall 42 of the separation projection 4 of the second embodiment can be obtained.

As a result, as shown in FIG. 5, it is possible to easily detach the protrusion 4 for separation from the cap upper wall surface 1 </ b> A together with the jig 20 attached to the protrusion 4 for separation.
Here, by coloring at least the upper surface of the pressing base 22 into a specific color different from that of the cap 1 in all or a part of the jig 20, the jig 20 can also function as an identifier indicating the content liquid of the vial 10.

FIG. 6 shows a different embodiment in which a protrusion is not formed integrally with the separation protrusion 4 formed on the cap, but is formed separately.
As shown in FIG. 6 (a), a protrusion main body 4A in which a separation protrusion 4 integrally formed on the upper cap wall surface 1A has a U-shaped cross section having a hollow portion with an open bottom, and the protrusion The main body 4A has a fitting portion 4B that fits into the hollow portion without a gap or is fixed in a cylindrical shape.

The fitting portion 4B is formed with a protrusion 5 ′ that protrudes downward from the bottom surface and has a lower end set at a position below the protrusion main body portion 4A.
In the case of the present embodiment, the fitting portion 4B is formed integrally with the protrusion 5 'and is made of rubber or synthetic resin having a hardness higher than that of the seal member 12, but in the present invention, at least the protrusion 5 It is sufficient that 'is harder than the seal member 12, and the material is not limited to this embodiment.
Moreover, when the fitting part 4B is cylindrical shape, it is good also as an annular protrusion (not shown) by extending below as it is, and you may form a some protrusion in the bottom face of a cylinder.

Also in the case of the present embodiment, the thin portion 3 is formed in contact with the lower portion 41a of the outer peripheral wall 41 of the projection main body portion 4A that is erected substantially at the center of the cap upper wall surface 1A, as in the first embodiment. A portion in contact with the lower portion of the outer peripheral wall is formed in an inclined surface shape set to the thinnest portion 3a that is the thinnest in the thin portion 3 (see the thin portion 3 in FIG. 1).

As a result, as shown in FIG. 6 (b), when the separation projection 4 is pushed downward, a crack is generated along the thinnest portion 3a, and the projection main body 4A is cut off from the cap upper wall surface. Disconnected from 1A.
Due to the breakage, the fitting portion 4B having the protruding portion 5 ′ is separated from the cap upper wall surface 1A together with the protruding main body portion 4A.

At the same time, since a flange due to breakage is not formed in the lower portion 41a of the outer peripheral wall 41 of the protrusion main body 4A, the lower portion of the broken outer peripheral wall is buffered with the inner edge portion of the opening 2 formed in the cap upper wall surface 1A. Instead, it is lifted by the repulsive force acting on the protrusion 5 ′ and separated from the cap upper wall surface 1A.
The other configuration is the same as that of the above embodiment, and the description thereof is omitted.

In the fourth embodiment, the case where the cap 1 is formed of metal is illustrated, but it may be formed of synthetic resin.
7A and 7B show Example 7 in which the cap 1 is a synthetic resin.
The cap 1 has a U-shaped separating projection 4 ′ having a U-shaped cross section, which is integrally formed at the approximate center of the upper wall surface 1A of the cap, similar to the projection main body 4A of the fourth embodiment.
Since the cap 1 is made of synthetic resin, the cap 1 is formed thick, so that the outer peripheral wall 41 of the separation projection 4 ′ can be formed thicker. A protrusion 5 ″ is formed integrally with 41b.

The bottom surface 41b of the outer peripheral wall 41 of the separation projection 4 ′ is set to be substantially the same height as the bottom surface of the cap upper wall surface 1A, and a projection 5 ″ projecting downward is formed on the bottom surface 41b. .
In this embodiment, the protrusions 5 ″ are arranged in a ring shape, although a plurality of substantially hemispherical protrusions are arranged at equal intervals around the center line of the separating protrusion 4 ′ as an axis. May be.

The thin-walled portion 3 is notched so that the bottom surface side of the upper wall surface 1A of the cap is thin, and the cross-section is inclined so that the thinnest portion 3a is disposed at a position in contact with the lower part of the outer peripheral wall of the separation projection 4 ′. It is formed in a shape (see FIG. 7A).
The thin wall portion 3 is cut so that the upper surface side of the cap upper wall surface 1A gradually becomes thin, and the thinnest portion 3a is disposed at a position where it contacts the lower end of the outer peripheral wall of the separation projection 4 ′. It may be formed in an inclined shape (see FIG. 8).

In this embodiment, the locking means 14 for the cap peripheral wall portion 1B includes a slit 14a that extends in the vertical direction on the cap peripheral wall portion 1B and allows the outer diameter to be expanded and contracted, and an inward claw portion 14b formed at the lower end. It is made up of.
Four slits 14a are provided at equal intervals, and claw portions 14b are provided along the lower ends of the fragments of the cap peripheral wall 1B divided by the slits 14a, but the number is not particularly limited.

Other known structures can be used for the locking means.
Moreover, although the corner | angular part of 1 A of cap upper wall surfaces is made the same thickness as the cap surrounding wall part 1B, and the upper surface side forms the level | step difference so that it may become a little thin, it is good also as the same thickness.
Since other configurations are the same as those in the above embodiment, the description thereof is omitted.

The present invention is not limited to the cap of a vial bottle, but can be applied as a cap structure of a container for various uses sealed with a seal member.

1 Cap 1A Cap upper wall 1B Cap peripheral wall
2 Opening 3 Thin part 3a Thinnest part 4 Separation protrusion 4A Protrusion main body part 4B Fitting part 5 Protrusion part 10 Vial bottle 11 Opening part 12 Sealing member 14 Locking means 20 Jig 41 Outer wall 41a Lower part 42 Top wall

Claims

An elastic seal member that seals the opening of the container, a cap that covers the seal member and is fitted over the opening, and an annular ring that is cut off at a location corresponding to the upper surface of the seal member on the upper wall surface of the cap In the cap structure of the container provided with the separation protrusion formed integrally through the thin wall portion of
The lower part of the outer peripheral wall of the separation protrusion is in contact with the thinnest annular thin part on the upper wall surface of the cap, and protrudes upward from the thin part,
A vial or the like characterized in that the separation protrusion is provided with a protrusion that is arranged along the thin portion and protrudes downward and whose lower end is set to a length that pushes the seal member in a repulsive manner. Container cap structure.
2. The cap of a container such as a vial according to claim 1, wherein the thin-walled portion is formed in a cross-sectionally inclined shape in which a portion in contact with the lower portion of the outer peripheral wall of the separating projection is the thinnest thinnest portion. Construction.
The separation projection is configured to be set broadly so that the outer periphery of the top wall surface of the separation projection protrudes outward in all or part of the other outer periphery of the separation projection. Item 3. The container cap structure according to Item 1 or 2.
The cap structure for a container such as a vial according to claim 1 or 2, wherein the protrusion is formed in an annular shape along the thin wall portion.
5. The container cap structure according to claim 4, wherein the protrusion is formed in an annular shape in a cross-sectional channel shape having a hollow portion that opens downward and extends downward on the top wall surface of the separation protrusion.
The protrusion is annular, and a cap-shaped jig is provided that includes a leg that can be inserted into the hollow portion of the protrusion and a base formed on the outer periphery that is larger than the outer periphery of the top wall of the separation protrusion. ,
The container cap structure according to claim 5, wherein the leg portion of the jig is fitted into the hollow portion of the annular protrusion, and the separation protrusion is pressed through the base portion to be separated.
A protrusion main body portion having a hollow portion in which the separation protrusion is formed integrally with the upper wall surface of the cap and the bottom surface is opened;
A fitting portion that fits in the hollow portion of the projection main body portion without a gap, and a projection that protrudes downward from the bottom surface of the fitting portion and whose lower end is set at a position below the bottom surface of the upper wall surface of the cap. The cap structure for a container according to claim 1 or 2.
The cap is made of synthetic resin, and the protrusion for separation has a U-shaped cross section formed integrally with the upper wall surface of the cap, and the protrusion protruding downward on the bottom surface of the outer peripheral wall of the protrusion for separation is integrated. The container cap structure according to claim 1, wherein the container cap structure is formed as follows.
A container comprising the container cap structure according to any one of claims 1 to 8.