JP2006124017A - Container cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container cap for surely maintaining the sealed condition of a container and for preventing moisture, etc. from attaching to a rubber cap in sterilizing at a high temperature. <P>SOLUTION: This container cap 20 comprises a metallic inner cap 21 comprising a disk shaped top face part 23 forming an opening part 25 and a cylindrical part 24 hanging down from the outer periphery of the top face part 23 for covering the opening 3 of a container 1 sealed with a rubber cap 4 and a metallic outer cap 22 comprising a disk shaped top face 12 and a cylindrical part 14 hanging down from the bottom of the outer periphery of the top face 12 for covering the outside of the inner cap 21. By tightening the bottom parts 24a, 14a of the cylindrical parts 24, 14 of both caps 21 and 22 on the neck part 5 of the container 1 together, the container 1 is sealed airtight and secured. A flange 16 protruding outside in the diametral direction is provided on the outer peripheral edge of the top face 12 of the cap 22, and the bottom part 14a of the cylindrical part 14 of the cap 22 is formed with a plurality of split lines 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a container cap that seals an opening of a container such as a glass bottle for pharmaceuticals.

  Conventionally, a cap mainly used to seal a glass bottle, which is a container for pharmaceuticals, is provided so as to cover a rubber stopper that plugs the mouth of the glass bottle in a sealed state. It consists of an aluminum cap provided to cover and a plastic lid placed on the aluminum cap.

  As a cap composed of such an aluminum cap and a plastic lid, there is a so-called flip-off cap. In this flip-off cap, a through hole is formed in the center of the circular top surface portion of the aluminum cap, and a broken line cut in a circular shape is formed on the outer peripheral portion of the through hole leaving a plurality of bridge portions. . Then, a protrusion having a shape corresponding to the through hole is formed on the inner surface of the plastic lid that covers the top plate of the aluminum cap, and the protrusion is inserted into the through hole. The aluminum cap and the plastic lid are integrally connected by crimping the edge of the through hole. The caps that are integrally connected in this way are wrapped around the rubber cap so that the skirt of the aluminum cap hangs around the neck (step) around the mouth of the glass bottle while being pressed with a predetermined pressure. Mounted on a glass bottle.

  In such a flip-off cap, when the plastic lid is removed at the time of opening, the edge portion of the through hole of the aluminum cap is torn along the breaking line by pulling up the protruding portion crimped to the aluminum cap, so that the rubber plug The top of is partially exposed. Then, a person who wants to take out the contents (mainly injection solution) stabs the exposed rubber stopper with a syringe needle and removes the contents. When opened in this manner, a ring-shaped aluminum plate broken from the aluminum cap remains on the inner surface of the plastic lid.

  Moreover, as a similar form of the flip-off cap, there is a so-called spot-off type cap. This type of cap is common in that the protrusion formed on the inner surface of the plastic lid is crimped to the through hole of the aluminum cap, but the break line is not formed around the through hole of the aluminum cap. In this case, when the plastic lid is removed at the time of opening, the caulking projection is deformed to cause the aluminum cap to come out of the through hole, thereby exposing the rubber plug in the size of the through hole. . In this case, since the aluminum cap is not broken at the time of opening, a part of the aluminum cap does not remain on the plastic lid after opening.

Japanese Utility Model Publication No. 61-15881

  However, in the flip-off cap as described above, when the container containing the contents is hermetically sealed with the flip-off cap and then steam sterilized at a high temperature (for example, 120 ° C.), the plastic lid is elastically deformed. Therefore, a slight gap may be formed between the aluminum cap and the aluminum cap. In this case, water vapor entering from the gap may enter the rubber stopper through the through hole or break line of the aluminum cap, and may adhere to the upper surface of the rubber stopper that becomes the piercing opening of the injection needle, which is unfavorable for hygiene. .

Therefore, in order to solve the above-mentioned problem, the present invention comprises a disc-shaped top surface portion having an opening and a cylindrical portion hanging from the outer peripheral portion of the top surface portion, and the mouth portion of the container sealed with a rubber stopper An inner cap made of metal, and a cylindrical portion that hangs from a disk-shaped top surface portion and a lower peripheral portion of the top surface portion, and is composed of a metal outer cap that covers the outer side of the inner cap, A container cap that seals and fixes the container by the skirts of the cylindrical portions of both the inner cap and the outer cap being wound together around the neck of the container,
The outer peripheral edge of the top surface of the outer cap is provided with a flange that protrudes radially outward, and a plurality of split lines are formed at intervals in the circumferential direction at the bottom of the cylindrical portion of the outer cap. It is a feature.

  In the container cap of the present invention, both the inner cap and the outer cap may be made of aluminum.

  Moreover, in the container cap of this invention, the collar part of the said outer cap may be formed by crushing the closed end part side of the cylindrical cap with which the one end part was closed.

  In the container cap of the present invention, the split line of the outer cap may be a weakening line cut to a predetermined depth of the thickness of the metal plate constituting the cylindrical portion.

  In the container cap of the present invention, when the skirts of the cylindrical portions of both the inner cap and the outer cap are wound together around the neck of the container, the skirt of the inner cap is the outer cap. You may make it protrude from the skirt part.

  Furthermore, in the container cap of the present invention, a substantially C-shaped notch is formed on the top surface of the inner cap so as to leave a substantially ring-shaped knob around the opening. A weakening line may be formed from one end to the bottom of the cylindrical portion.

  In the container cap of the present invention, since the rubber cap that seals the mouth of the container is pressed by the double of the inner cap and the outer cap, the sealed state of the container can be more reliably maintained. In addition, since both the inner cap and the outer cap are made of metal such as aluminum, for example, even when a container filled with a medicine is steam sterilized at a high temperature (for example, 120 ° C.), the inner cap and the outer cap do not expand and contract. Since it holds firmly, foreign substances, such as water vapor, do not adhere to the upper surface of the rubber stopper that becomes the puncture opening of the injection needle, which is advantageous in terms of hygiene compared to a container cap including an outer cap made of plastic.

  In the container cap of the present invention, since the outer cap is made of metal, it does not expand and contract even when steam sterilized at high temperature (for example, 120 ° C.). There is nothing hard to do.

  In the container cap of the present invention, for example, a cylindrical outer cap with one end closed is formed from an aluminum plate by a single drawing process, and the closed end side of the outer cap is slightly crushed and deformed. The said collar part can be formed by. Therefore, the drawing process only needs to be performed once, and the collar portion can be easily formed, so that the unit price can be reduced.

  Further, in the container cap of the present invention, for example, the breaking strength of the split line can be arbitrarily set by adjusting the depth of cut, so that the outer cap can be easily opened with one hand with an appropriate force. Can be. On the other hand, once the outer cap is opened, since the split line has already been broken, it cannot be re-sealed as in the unopened state, so that a pilfer proof characteristic can be provided.

  Further, in the container cap of the present invention, when the outer cap is removed from the container, the rubber stopper is still held by the inner cap at the container mouth, so that the rubber stopper is connected to the rubber stopper through the opening on the top surface of the inner cap. It is possible to prevent the rubber stopper from coming off from the container mouth when the injection needle is inserted and inserted.

  Further, in the container cap of the present invention, when the outer cap is opened, the aluminum cap is not cut or the aluminum and the plastic are not rubbed on the rubber cap unlike the conventional flip-off cap. There is no risk of aluminum powder or plastic powder adhering to the upper surface of the surface, and it is hygienic.

  In the container cap of the present invention, the inner cap can be easily removed from the container by forming the knob portion and the weakening line on the inner cap, and gripping the knob portion after use of the contents of the container and tearing it along the weakening line. It can be removed and separated and discarded. In this case, if the inner cap and the outer cap are made of the same metal (for example, aluminum), unlike the case where the outer cap is made of plastic, the inner cap and the outer cap are discarded together for recycling. Can do.

  In addition, if the bottom of the inner cap protrudes from the bottom of the outer cap when the bottom of the cylindrical portion of both the inner cap and the outer cap is wrapped around the neck of the container together, the inner cap Can be easily seen from the outside.

  Furthermore, in the container cap of this invention, since the area of the top | upper surface part of an outer cap including a collar part is large, a printing surface increases and a commercial value can be raised more.

Below, the container cap of one Embodiment of this invention is demonstrated with reference to FIG.
FIG. 1 is a half cross-sectional view of a container cap 20 that plugs a relatively small glass bottle 1 that is, for example, a pharmaceutical container into a sealed state. The container cap 20 includes an inner cap 21 that covers the mouth 3 of the glass bottle (container) 1 that is sealed with the rubber stopper 4, and an outer cap 22 that covers the outer side of the inner cap 21. The outer cap 22 includes a disk-shaped top surface portion 12 and a cylindrical portion 14 that hangs down from the lower outer periphery of the top surface portion 12.

  The outer cap 22 is provided with a flange 16 that protrudes radially outward over the entire outer peripheral edge of the top surface 12. The protruding width of the flange portion 16 from the cylindrical portion 14 is, for example, about 1 to 2 mm, but may be more than that. The flange portion 16 is integrally formed with an aluminum plate having a thickness of 0.2 mm, for example, together with the top surface portion 12 and the cylindrical portion 14.

  In addition, the collar part 16 does not necessarily need to be formed over the entire outer periphery of the top surface part 12, and may be divided into, for example, a plurality of collar parts formed with gaps, or outside the top surface part 12. You may provide only about a part of peripheral part.

  A plurality of split lines 18 are formed at appropriate intervals in the circumferential direction at the skirt portion 14a that is the opening side end of the cylindrical portion 14. In the present embodiment, the split line 18 is formed to have a length of, for example, about several mm along the axial (X-axis) direction of the cylindrical portion 14. However, the split line 18 may be formed so as to form an angle of 15 ° to 80 ° with respect to the axial direction of the cylindrical portion 14. By providing such an angle, there is an effect of preventing the split line 18 from being broken when the skirt portion 14a of the cylindrical portion 14 is wound around the neck portion 5 of the glass bottle 1 as will be described later.

The split line 18 is formed as a weakened line cut to, for example, two thirds of the thickness of the cylindrical portion 12. By adjusting the cutting depth, the breaking strength of the split line 18 can be arbitrarily set.
Note that the split line 18 is not limited to a weakened line that is cut shallowly, and may be formed as a perforated line, for example.

  The outer cap 22 is manufactured as follows. First, a plurality of split wires 18 are formed on an aluminum plate side by side in the circumferential direction, and then a drawing process using a mold is performed to form a cylindrical cap with one end closed. Thereafter, the closed end side of the cylindrical cap is slightly crushed and deformed, whereby the crushed portion protrudes radially outward to form the flange portion 16.

  The inner cap 21 has a cylindrical shape with one end closed, for example, formed by drawing an aluminum plate having a thickness of 0.2 mm. The inner cap 21 is suspended from a disk-shaped top surface portion 23 and an outer peripheral portion of the top surface portion 23. And a cylindrical portion 24. As shown in FIG. 2, for example, a circular opening 25 is formed in the central portion of the top surface portion 23 of the inner cap 21. When the outer cap 22 is removed, the rubber plug 4 is inserted through the opening 25. Is exposed.

  Further, a substantially C-shaped notch 27 is formed on the top surface 23 of the inner cap 21 so as to leave a substantially ring-shaped knob 26 around the opening 25. A weakening line 28 is formed from one end portion of the cutout portion 27 from the top surface portion 23 to the skirt portion 24 a of the cylindrical portion 24.

  The outer cap 22 and the inner cap 21 are both made of aluminum, but are not limited to this, and may be made of other metals.

  When the container cap 20 is attached to the glass bottle 1, first, the inner cap 21 is put on the mouth portion 3 of the glass bottle 1 sealed with the rubber stopper 4, and then the outer cap 22 is put on the outside thereof. Then, the skirt 14a of the cylindrical portion 14 of the outer cap 22 and the skirt 24a of the cylindrical portion 24 of the inner cap 21 are bent together into the neck portion 5 of the glass bottle 1 and wound, whereby the container cap 20 is The glass bottle 1 is sealed and fixed. This cap attaching process is automatically performed by an apparatus generally called a capper.

  When the skirts 24 a and 14 a of both the inner cap 21 and the outer cap 22 are wound together, the skirt 24 a of the inner cap 21 protrudes from the skirt 14 a of the outer cap 22. Thereby, it can be visually recognized from the outside that the inner cap 21 is mounted.

  However, since the skirt 24a of the inner cap 21 protrudes, there is no possibility that the inner cap 21 cannot be pulled out from the outside. Therefore, the skirt 24a of the inner cap 21 is prevented from being pulled out. It may be designed so as not to protrude from the hem 14a.

  When opening the container cap 20 attached to the glass bottle 1 as described above, as shown in FIG. 1, the body portion (not shown) of the glass bottle 1 is grasped by hand, and the heel portion 16 with the thumb. Is pushed up in the direction of arrow B. Thereby, for example, when one or two split lines 18 are broken, the skirt portion 14a wound around the cylindrical portion 14 is expanded, and the skirt portion 14a of the cylindrical portion 14 is detached from the neck portion 5 of the glass bottle 1, As a result, the outer cap 22 can be removed from the glass bottle 1. At this time, the inner cap 21 remains in a state where the rubber stopper 4 is firmly held.

  When the outer cap 22 is removed from the glass bottle 1, the rubber stopper 4 is exposed through the opening 25 formed in the top surface portion 23 of the inner cap 21, and the injection needle is inserted into the rubber stopper 4 through the opening 25. The contents can be extracted.

  When the glass bottle 1 is discarded after the contents are used, the inner cap 21 is removed from the glass bottle 1 by grasping the knob portion 26 of the inner cap 21 and tearing it along the weakening line 28.

  As described above, according to the container cap 20 of the present embodiment, the following effects can be obtained.

  In the container cap 20, the rubber cap 4 that seals the mouth 3 of the glass bottle 1 is pressed by the double of the inner cap 21 and the outer cap 22, so that the sealed state of the glass bottle 1 can be more reliably maintained. it can. In addition, since both the inner cap 21 and the outer cap 22 are made of aluminum, even when a container filled with a medicine or the like is steam sterilized at a high temperature (for example, 120 ° C.), the inner cap 21 and the outer cap 22 are not stretched and deformed, and the sealed state is firmly secured. Since it is held, foreign matter such as water vapor does not adhere to the upper surface of the rubber stopper 4 that becomes the piercing opening of the injection needle, which is advantageous in terms of hygiene compared to a container cap including an outer cap made of plastic.

  In the container cap 20 of the present invention, since the outer cap 22 is made of aluminum, it does not expand and contract even when steam sterilized at a high temperature (for example, 120 ° C.), so that the opening force does not change. It ’s hard to open.

  Moreover, in the container cap 20, for example, an aluminum plate is formed by forming a cylindrical outer cap with one end closed by a single drawing process, and the closed end side of the outer cap is slightly crushed and deformed. The portion 16 can be formed. Therefore, the drawing process only needs to be performed once, and the collar portion can be easily formed, so that the unit price can be reduced.

  Further, in the container cap 20, the breaking strength of the split wire 18 can be arbitrarily set by adjusting the depth of cut, so that the outer cap 22 can be easily opened with a moderate force by one hand. can do. On the other hand, once the outer cap 22 is opened, the split wire 18 has already been broken, so that it cannot be re-sealed as in the unopened state, so that the pilfer proof characteristic can be provided.

  Further, in the container cap 20, when the outer cap 22 is removed from the glass bottle 1, the rubber stopper 4 is still held in the mouth 3 of the glass bottle 1 by the inner cap 21, so the opening of the top surface portion 23 of the inner cap 21. It is possible to prevent the rubber stopper 4 from being detached from the mouth portion 3 of the glass bottle 1 when the needle is inserted into the rubber stopper 4 via the portion 25.

  Further, in the container cap 20 of the present invention, when the outer cap 22 is opened, the aluminum cap is not cut or the aluminum and the plastic are not rubbed on the rubber plug 4 unlike the conventional flip-off cap. In addition, there is no risk of aluminum powder or plastic powder adhering to the upper surface of the rubber plug 4, and it is hygienic.

  Further, in the container cap 20, the inner cap 21 is formed with the knob portion 26 and the weakening line 28, whereby the inner cap 21 is grasped and torn along the weakening line 28 after the contents of the glass bottle 1 are used. Can be easily removed from the container 1 and separated and discarded. In this case, since the inner cap 21 and the outer cap 22 are both made of aluminum, unlike the case where the outer cap is made of plastic, the inner cap 21 and the outer cap 22 can be discarded together for recycling. it can.

  Furthermore, in the container cap 20, since the area of the top | upper surface part 12 of the outer cap 22 including the collar part 16 is large, a printing surface increases and it can raise commercial value more.

The half sectional view showing the container cap of the embodiment of the present invention. The perspective view of the inner cap which comprises a container cap.

Explanation of symbols

1 ... Glass bottle (container)
2 ... Opening portion 3 ... Mouth portion 4 ... Rubber plug 5 ... Neck portion 12 ... Top surface portion 14 ... Cylindrical portion 14a ... Bottom portion 16 ... Bridge portion 18 ... Split wire 20 ... Container cap 21 ... Inner cap 22 ... Outer cap 23 ... Top surface portion 24 ... cylindrical portion 24a ... hem portion 25 ... opening portion 26 ... knob portion 27 ... notch 28 ... weakening line

Claims (6)

An inner cap made of a metal that covers a mouth portion of a container sealed with a rubber stopper, and includes a disc-shaped top surface portion having an opening and a cylindrical portion hanging from the outer peripheral portion of the top surface portion. And a cylindrical outer portion that hangs down from the lower outer periphery of the upper surface portion, and is composed of a metal outer cap that covers the outer side of the inner cap, and the hems of the cylindrical portions of both the inner cap and the outer cap. A container cap that is hermetically sealed by fixing the container by being wound together around the neck of the container;
The outer peripheral edge of the top surface of the outer cap is provided with a flange that protrudes radially outward, and a plurality of split lines are formed at intervals in the circumferential direction at the bottom of the cylindrical portion of the outer cap. Characteristic container cap.   The container cap according to claim 1, wherein both the inner cap and the outer cap are made of aluminum.   The container cap according to claim 1, wherein the flange portion of the outer cap is formed by crushing a closed end portion side of a cylindrical cap whose one end portion is closed.   2. The container cap according to claim 1, wherein the split line of the outer cap is a weakened line cut to a predetermined depth of the thickness of the metal plate constituting the cylindrical portion.   When the skirts of the cylindrical portions of both the inner cap and the outer cap are wound together around the neck of the container, the skirt of the inner cap protrudes from the skirt of the outer cap. The container cap according to claim 1.   In the top surface of the inner cap, a substantially C-shaped notch is formed so as to leave a substantially ring-shaped knob around the opening, and the cylindrical portion extends from one end of the notch. The container cap according to claim 1, wherein a weakening line is formed on the skirt.

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