JPH06293349A - Composite container cover - Google Patents

Abstract

PURPOSE:To install the title composite container cover in the mouth-neck part of a container only by screwing operation and to easily remove parts remaining in the mouth-neck part after unsealing operation from the mouth-neck part, as occasion demands, by improving the composite container cover including a metal container cover and synthetic-resin container cover. CONSTITUTION:A circumferentially extended break line 26 is formed also in the skirt wall 24 of an inner cover 4 and the skirt wall 24 of the inner cover is also divided into a main part and tamper-evident skirt part 30. A detent means is formed on the inner peripheral face of the tamper-evident skirt part 30 of the inner cover. Further, an axial break line 42 is formed in the tamper- evident skirt part 30 of the inner cover.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes a composite container lid applied to a container such as a beverage bottle, more specifically, a metal outer lid and a synthetic resin inner lid disposed in the outer lid. Regarding a composite container lid.

[0002]

2. Description of the Related Art Tamper-evidence characteristics (improper labeling characteristics in which traces remain when the container lid is opened by tampering with it) are particularly suitable for containers such as glass bottles containing alcoholic beverages such as whiskey. As a container lid having a high quality, a composite container lid including a metal outer lid and a synthetic resin inner lid disposed inside the outer lid is disclosed in Japanese Utility Model Publication No. 51-6343. Has been done.

The outer lid of the composite container lid has a circular top wall and a cylindrical skirt wall hanging down from the peripheral edge of the top wall, and a rupture line extending in the circumferential direction is formed on the skirt wall to form a skirt. The wall is divided into a main part above the breaking line and a tamper-evidence skirt below the breaking line. The fracture line is composed of a plurality of circumferentially spaced slits extending in the circumferential direction and bridging portions located between the slits. The inner lid, which can be inserted into the outer lid by a suitable method such as press fitting, also has a circular top wall and a cylindrical skirt wall hanging from the peripheral edge of the top wall. The tamper-evidence skirt of the skirt wall of the outer lid extends downward beyond the lower end of the skirt wall of the inner lid. A female thread is formed on the inner peripheral surface of the skirt wall of the inner lid.

A container to which the above-mentioned composite container lid is applied has a cylindrical mouth-neck portion, and a male thread is provided on an outer peripheral surface of the mouth-neck portion and an annular locking jaw portion located below the male thread. Are formed. When attaching the composite container lid to the mouth and neck of the container to seal the mouth and neck, put the composite container lid on the mouth and neck and rotate it in the closing rotation direction. The female thread formed on the surface is screwed into the male thread formed on the outer peripheral surface of the mouth and neck. Next, the required portion of the tamper-evidence skirt portion of the skirt wall of the outer lid is deformed radially inward so as to be locked to the lower surface of the locking jaw portion formed on the outer peripheral surface of the mouth / neck portion.

In order to open the mouth and neck of the container, the composite container lid is rotated in the opening rotation direction. As a result, the female thread formed on the inner peripheral surface of the skirt wall of the inner lid is moved along the male thread formed on the outer peripheral surface of the neck and neck, and the composite container lid is raised with rotation. To be On the other hand, the tamper-evident hem of the skirt wall of the outer lid cannot be raised because it is locked by the locking jaw formed on the outer peripheral surface of the mouth and neck, thus forming on the skirt wall. Stress is generated in the breaking line that is being broken, and the breaking line is broken (more specifically, the bridging portion in the breaking line is broken), and the tamper-evident skirt is separated from the main portion of the skirt wall. After that, leaving the tamper-evidence hem of the skirt wall on the outer lid, all the other parts of the composite container lid are lifted with rotation and separated from the mouth and neck, thus opening the mouth and neck. To be done.

[0006]

The conventional composite container lid as described above, however, has the following problems to be solved.

Firstly, when the lid of the composite container is attached to the mouth and neck of the container to seal the mouth and neck, the lid of the composite container is rotated in the closing rotation direction to make the inner peripheral surface of the skirt wall of the inner lid. In addition to requiring a so-called screwing operation to screw the female thread formed on the outer thread to the male thread formed on the outer peripheral surface of the mouth and neck, the tamper-evident hem of the skirt wall of the outer lid is required. It is necessary to perform a so-called locking process operation in which a required portion of the portion is deformed inward in the radial direction and is locked to the lower surface of the locking jaw formed on the outer peripheral surface of the mouth and neck. Therefore, the time required to mount the composite container lid is relatively long, and also a relatively complex and expensive device for mounting the composite container lid is required.

Secondly, in order to reuse the container or collect waste by material (so-called separate collection), the tamper-evidence skirt of the skirt wall of the outer lid left on the mouth and neck of the container. Is required to be removed from the mouth and neck, which is extremely difficult, if not impossible, to remove the residual tamper evidence hem.

The present invention has been made in view of the above facts, and its main technical problem is to improve the lid of the composite container of the above-mentioned form so as not to impair the tamper-evidence characteristics and also in the appearance and the like. That is, the container can be mounted on the mouth and neck of the container as required without impairing the sense of quality and without requiring a so-called locking operation.

Another technical object of the present invention is to improve the composite container lid of the above-mentioned form so that the portion remaining in the mouth and neck after opening the mouth and neck of the container can be easily removed from the mouth and neck. To be able to do so.

[0011]

In order to achieve the above-mentioned main technical problems, in the present invention, the skirt wall of the synthetic resin inner lid disposed inside the metal outer lid also extends in the circumferential direction. A rupture line is formed to partition the skirt wall into a main part above the rupture line and a tamper-evidence hem below the rupture line, and at the inner peripheral surface of the tamper-evident hem, A locking means for locking the locking jaw formed on the outer peripheral surface of the mouth and neck is formed.

That is, according to the present invention, a composite container lid that achieves the above-mentioned main technical problems includes a metal outer lid and a synthetic resin inner lid disposed in the metal outer lid. The outer lid has a top wall and a skirt wall hanging from the top wall,
A rupture line extending in the circumferential direction is formed on the skirt wall, and the skirt wall is divided into a main portion above the rupture line and a tamper-evidence hem below the rupture line. The inner lid has a top wall and a skirt wall hanging from the top wall, and a rupture line extending in the circumferential direction is formed on the skirt wall, and the skirt wall is located above the rupture line. And a tamper-evidence hem below the breaking line, and is formed on the outer peripheral surface of the mouth and neck of the container on the inner peripheral surface of the main portion of the skirt wall. A female thread to be screwed into the male thread is formed, and a locking jaw formed on the outer peripheral surface of the mouth and neck of the container is formed on the inner peripheral surface of the tamper-evidence skirt of the skirt wall. Locking means is formed to be locked to the Composite container lid is provided.

The tamper-evidence skirt of the skirt wall of the outer lid extends downward beyond the lower end of the tamper-evidence skirt of the skirt wall of the inner lid, and the tamper-evidence skirt of the inner lid extends downward. It is preferable that the tamper-evidence skirt of the skirt wall is formed with a locking recess that is locked to the tamper-evident skirt of the skirt wall of the inner lid. The locking recess can be formed in an annular shape that extends continuously in the circumferential direction, and can be locked to the lower end of the tamper-evidence skirt of the skirt wall of the inner lid. The locking means formed on the inner peripheral surface of the tamper-evidence skirt of the skirt wall of the inner lid,
It can consist of one or more flexible projections that project radially inward.

Further, in order to achieve the above-mentioned other technical problems, in the present invention, at least one tamper-evidence skirt portion of the skirt wall of the inner lid is preferably spaced apart in the main direction. Forming a plurality of axial break lines. The axial break line preferably comprises a slit extending axially through the tamper-evident skirt of the skirt wall of the inner lid.

[0015]

The composite container lid constructed according to the present invention is fitted on the mouth-neck portion of the container and rotated in the closing rotation direction, and the female screw formed on the inner peripheral surface of the main portion of the skirt wall of the inner lid. When the thread is screwed onto the male thread formed on the outer peripheral surface of the mouth / neck portion, the locking means formed on the inner peripheral surface of the tamper-evident hem of the skirt wall of the inner lid engages in the mouth / neck portion. The locking jaw portion formed on the outer peripheral surface is passed through and the lower surface thereof is engaged. Therefore, the tamper-evidence characteristic can be obtained without the need for performing a locking deformation operation on the tamper-evidence hem portion of the outer lid to lock the tamper-evidence hem portion on the locking jaw of the mouth and neck.

When the mouth-neck portion of the container is opened, the break line formed on the skirt wall of the inner lid and the break line formed on the skirt wall of the inner lid are broken, and the skirt wall of the inner lid is broken. The tamper-evidence hem and the tamper-evidence hem of the skirt wall of the outer lid are left in the mouth and neck, and the other parts of the composite container lid are removed from the mouth and neck. After that, the tamper-evidence skirt of the skirt wall of the outer lid, which remains in the mouth and neck, can be moved downward to expose the tamper-evident skirt of the skirt wall of the inner lid. The downward movement of the tamper-evidence skirt of the skirt wall of the inner lid is caused by, for example, the annular ridge formed on the outer peripheral surface of the mouth and neck and located below the tamper-evident hem of the skirt wall of the inner lid. It can be prevented by abutting, so that it is sufficient that the tamper-evident skirt of the skirt wall of the inner lid also moves downward with the downward movement of the tamper-evident skirt of the skirt wall of the outer lid. It can be surely prevented. When the tamper-evidence hem of the skirt wall of the inner lid is exposed, the tamper-evident hem of the skirt wall of the inner lid has an axial breaking line,
The tamper-evidence skirt of the skirt wall of the inner lid can be moved outward in the radial direction by making it arcuate from an annular shape, and thus can be easily removed from the mouth and neck. Furthermore, after the tamper-evidence hem of the skirt wall of the inner lid is removed from the mouth and neck, the tamper-evidence hem of the skirt wall of the outer lid can be moved upwards, thus the skirt wall of the outer lid. The tamper-evidence hem can also be removed from the mouth and neck with sufficient ease.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a composite container lid constructed according to the present invention will be described in more detail below with reference to the accompanying drawings.

Referring to FIG. 1, the illustrated composite container lid has a metal outer lid generally designated by the numeral 2 and a generally outer lid by the numeral 4.
And a synthetic resin inner lid indicated by. 2 together with FIG.
The outer lid 2, which can be formed from a metal thin plate such as an aluminum-based alloy thin plate, a chromic acid treated steel thin plate, or a tin plate, is a circular ceiling wall 6 and a cylinder hanging from the peripheral edge of the ceiling wall 6. Skirt wall 8 and. The skirt wall 8 is hung relatively long so as to give a high-class appearance. A rupture line 10 extending in the circumferential direction is formed at a substantially intermediate portion in the axial direction of the skirt wall 8, and the skirt wall 8 has a main portion 12 above the rupture line 10 and a tamper shrimp below the rupture line 10. It is divided into the dent hem portion 14. The breaking line 10 is composed of a plurality of circumferentially spaced slits (cutting grooves) 16 extending in the circumferential direction and a plurality of bridging portions 18 located between the slits 16. The circumferential lengths of the plurality of slits 16 may all be the same, and the circumferential lengths of the plurality of bridging portions 16 may all be the same. Further, as clearly shown in FIG. 1, the tamper-evident skirt portion 14 of the skirt wall 8 of the outer lid 2 is formed with a locking recess 20 that extends continuously in an annular shape in the circumferential direction. It is convenient to form the locking recess 20 after the inner lid 4 is inserted into the outer lid 2 by an appropriate method such as press fitting.

Referring to FIG. 3 together with FIG. 1, an inner lid 4 which can be compression molded or injection molded from a suitable synthetic resin such as polypropylene or polyethylene.
Also has a circular top wall 22 and a skirt wall 24 depending from the peripheral edge of the top wall 22. The upper end of the skirt wall 24 has a conical shape whose diameter gradually increases downward,
The portion below this has a cylindrical shape. Skirt wall 24
A circumferential rupture line 26 is formed therein, and the skirt wall 24 is partitioned into a main portion 28 above the rupture line 26 and a tamper-evidence skirt portion 30 below the rupture line 26. The break line 26 is composed of a plurality of circumferentially spaced slits (cutting grooves) 32 and a plurality of bridge portions 34 located between the slits 32. The circumferential lengths of the plurality of slits 32 may all be the same, and the circumferential lengths of the plurality of bridging portions 34 may all be the same. A female thread 36 is formed on the inner peripheral surface of the main portion 28 of the skirt wall 24. Furthermore, the skirt wall 2
An annular protrusion 38 is formed at the upper end of the inner peripheral surface of the main portion 28 of No. 4 so as to protrude radially inward. Meanwhile, the skirt wall 2
Locking means are formed on the inner peripheral surface of the tamper-evidence skirt 30 of No. 4. The locking means can be composed of a plurality of flexible projecting pieces 40 arranged at intervals in the circumferential direction. If desired, it is also possible to form a single annular projecting piece which extends continuously in the circumferential direction. Further, although the projecting piece 40 in the illustrated embodiment is projected so as to be inclined inward in the radial direction from the lower side to the upper side, instead of the projecting piece 40 having such a shape, the projecting piece 40 is curved toward the one side in the circumferential direction. It is also possible to form a protruding piece having a shape protruding inward in the direction or another shape. The tamper-evidence skirt 30 of the skirt wall 24 is further formed with at least one axial break line 42. In the illustrated embodiment, two axial break lines 42 are formed at angular intervals of approximately 180 degrees in the circumferential direction, and each of the axial break lines 42 is a tamper-evident skirt of the skirt wall 24. It is composed of a slit that extends through 30 in the axial direction. If desired, the axial break line can be constructed from so-called perforations or scores.
Conveniently, the axial break line 42 is located between the protruding pieces 40. When the axial break line 42 is formed in the region where the projecting piece 40 exists, it is desirable to form the axial break line 42 corresponding to the projecting piece 40. On the inner surface of the top wall 22 of the inner lid 4, a separately formed disc-shaped seal member 44 is inserted. The annular projection 38 formed at the upper end of the inner peripheral surface of the main portion 28 of the skirt wall 24 holds the seal member 44 at a required position. The sealing member 44 itself may be, for example, a polyethylene terephthalate film attached to both sides of foamed polyethylene.

Before forming the locking recess 20 in the tamper-evident skirt 14 of the skirt wall 8 of the outer lid 2, the inner lid 4 is located at a required position in the outer lid 2, that is, the top wall 2 of the inner lid 4.
The outer surface of 2 is press-fitted to the position where the outer surface of the outer lid 2 comes into close contact with the inner surface of the top wall 6 of the outer lid 2, and thus the outer lid 2 and the inner lid 4 are united. As clearly shown in FIG. 1, the tamper-evident skirt 14 of the skirt wall 8 of the outer lid 2 extends downward beyond the lower end of the tamper-evident skirt 30 of the skirt wall 24 of the inner lid 2. There is. The slit 16 in the break line 10 of the skirt wall 8 in the outer lid 2 is
Usually, it is formed by forcing the lower side inwardly and cutting, and therefore, when the inner lid 4 is press-fit into the outer lid 2 as shown in FIG. 1, the outer lid is formed in the lower region of the slit 16. The skirt wall 8 of No. 2 and, more specifically, the upper edge of the tamper-evidence skirt 14 slightly bites into the outer peripheral surface of the skirt wall 24 of the inner lid 4. If desired, at a portion of the outer lid 2 facing the lower region of the slit 16,
An annular groove may be formed on the outer peripheral surface of the skirt wall 24 of the inner lid 4. After the press-fitting, the locking recess 20 is formed in the tamper-evident skirt 14 of the skirt wall 8 of the outer lid 2, and the locking recess 20 is the lower end of the tamper-evident skirt 30 of the skirt wall 24 of the inner lid 4. It is locked to.

Continuing with reference to FIG. 4, the container 46, only the top of which is shown in FIG. 4, can be made of glass or a suitable synthetic resin such as polyethylene terephthalate. The container 46 has a mouth-neck portion 48 having a substantially cylindrical shape. A male thread 50 is formed on the outer peripheral surface of the mouth / neck portion 48.
An annular locking jaw 5 located below the male thread 50
2 is formed. On the outer peripheral surface of the illustrated mouth / neck portion 52,
Furthermore, the annular protrusion 5 located below the annular locking jaw 52
4 is also formed.

In order to attach the composite container lid to the mouth / neck portion 48 of the container 46 and seal the mouth / neck portion 48, the composite container lid is fitted on the mouth / neck portion 48 to close the rotation direction, that is, in FIG. The female thread 36 formed on the inner peripheral surface of the skirt wall 24 of the inner lid 4 is rotated clockwise when viewed from above, and the mouth and neck 4 is inserted.
8 is screwed onto the male thread 50 formed on the outer peripheral surface. When the female thread 36 is sufficiently screwed onto the male thread 50 to bring the composite container lid to the state shown in FIG. 4, it is formed on the inner peripheral surface of the tamper-evidence skirt portion 30 of the skirt wall 24 of the inner lid 4. The protruding piece 40 is elastically bent and passes through the locking jaw portion 52 of the mouth / neck portion 48, and thereafter is elastically restored to the locking jaw portion 52 as shown in FIG.
Lock to the underside of. When the composite container lid is brought to the state shown in FIG. 4, the seal member 44 arranged on the inner surface of the top wall 22 of the inner lid 4 is brought into close contact with the top surface of the mouth / neck portion 48, whereby the mouth / neck The part 48 is sealed. The operation of attaching the composite container lid to the mouth / neck portion 48 is completed only by the screwing operation. It is not necessary to add an operation such as applying a locking process to the tamper-evidence skirt portion 14 of the skirt wall 8 of the outer lid 2.

When the mouth / neck portion 48 is opened, a finger is put on the outer peripheral surface of the main portion 12 of the skirt wall 8 of the outer lid 2 to rotate the mouth / neck portion 48 in the opening rotation direction, that is, in the counterclockwise direction when viewed from above in FIG. Thus, the skirt wall 2 in the inner lid 4
Since the female thread 36 formed on the inner peripheral surface of 4 is moved along the male thread 50 formed on the outer peripheral surface of the mouth / neck portion 48, the composite container lid is raised with rotation. Therefore, the protruding piece 4 formed on the inner peripheral surface of the tamper-evident skirt portion 30 of the skirt wall 24 of the inner lid 4.
0 is formed on the outer peripheral surface of the mouth / neck portion 48
The lower part of the lid of the composite container cannot be raised because it is locked to the inner container 2, and thus the breaking line 10 (more specifically, its bridging portion 18) and the inner part formed on the skirt wall 8 of the outer lid 2. Break line 26 formed on the skirt wall 24 of the lid 4 (more specifically, its bridging portion 34)
A stress is generated on the break line 10 and the break line 26.
Is completely broken, the tamper-evidence skirt 14 is separated from the main part 12 of the skirt wall 8 of the outer lid 2, and the tamper-evidence skirt 30 is separated from the main part 28 of the skirt wall 24 of the inner lid 4. Due to the annular recess 20 formed in the tamper-evidence skirt 14 of the skirt wall 8 of the outer lid 2, the tamper-evidence skirt 14 of the skirt wall 8 of the outer lid 2 is tamper-evident of the skirt wall 24 of the inner lid 4. Since it is locked to the lower end of the skirt portion 30, the tamper-evident skirt portion 14 of the skirt wall 8 of the outer lid 2 is also prevented from ascending sufficiently, and thus is formed on the skirt wall 8 of the outer lid 2. The breaking line 10 is also the skirt wall 2 in the inner lid 4.
With the breaking line 26 formed in No. 4, the breaking is sufficiently reliable. Thereafter, as shown in FIG. 5, the tamper-evidence hem portion 14 of the outer lid 2 and the tamper-evidence hem portion 30 of the inner lid 4 are left in the mouth / neck portion 48,
The other part of the lid of the composite container is lifted up by the rotation and separated from the mouth / neck portion 48, and thus the mouth / neck portion 48 is opened. The tamper-evidence hem portion 14 of the outer lid 2 and the tamper-evidence hem portion 30 of the inner lid 4 remaining on the mouth / neck portion 48 drop slightly downward after the breaking lines 10 and 26 are broken, and the tamper-evident hem portion 30 of the inner lid 4 falls. The lower end of the tamper-evidence skirt 30 is brought into contact with the annular protrusion 54 of the mouth / neck portion 48, thus maintaining the state shown in FIG. When it is desired to temporarily seal the once opened mouth / neck portion 48, the main portion of the composite container lid detached from the mouth / neck portion 48 is fitted onto the mouth / neck portion 48 again and rotated in the closing rotation direction. Inner lid 4
The female thread 36 formed on the inner peripheral surface of the main portion 28 of the skirt wall 24 in FIG. 1 may be screwed again to the male thread 50 formed on the outer peripheral surface of the mouth / neck portion 48.

After the contents of the container have been completely consumed, when the container is subjected to recovery for reuse or disposal, the tamper-evidence skirt of the outer lid 2 remaining on the mouth / neck 48. A finger is put on the outer peripheral surface of 14 to lower the tamper-evidence skirt 14 to the position shown by the chain double-dashed line in FIG. At this time, the tamper-evident skirt portion 30 of the inner lid 4 is prevented from moving downward because its lower end edge is in contact with the annular projection 54 formed on the outer peripheral surface of the mouth / neck portion 48. Therefore, when the tamper-evident skirt portion 14 of the outer lid 2 is lowered to the position shown in FIG. 5, the tamper-evident skirt portion 30 of the inner lid 4 is exposed to the outside. Thus, the tamper-evidence hem portion 30 of the inner lid 4
Is formed with two axial break lines 42,
Therefore, the tamper-evidence skirt 30 of the inner lid 4 is separated into two arc-shaped pieces after the circumferential break line 26 is broken as described above when opening the mouth / neck portion 48. Therefore, the tamper-evidence skirt 30 of the inner lid 4 can be easily removed from the mouth / neck portion 48 by moving the two arc-shaped portions outward in the radial direction. As clearly understood from FIGS. 1, 4 and 5, after removing the tamper-evidence skirt 30 of the inner lid 4 from the mouth / neck portion 48, the tamper-evidence skirt 30 of the inner lid 4 is removed. Without being interfered with by the outer lid 2
The tamper-evidence skirt 14 can be moved upward and removed from the mouth / neck 48 sufficiently easily.

[0025]

EFFECT OF THE INVENTION The composite container lid of the present invention can be mounted on the mouth and neck as required by only screwing operation without requiring additional operation such as locking operation. In addition, after opening the mouth and neck, the tamper-evidence hem of the outer lid and the tamper-evidence hem of the inner lid remaining on the mouth and neck can be removed from the mouth and neck with sufficient ease.

[Brief description of drawings]

FIG. 1 is a side view, partly in section, of a preferred embodiment of a composite container lid constructed in accordance with the present invention.

FIG. 2 is a side view showing a part of the outer lid of the composite container lid shown in FIG. 1 in section.

FIG. 3 is a side view showing a part of the inner lid of the composite container lid shown in FIG. 1 in section.

FIG. 4 is a side view showing a state in which the composite container lid shown in FIG. 1 is attached to the mouth / neck portion of the container, with a part thereof shown in section.

5 is a cross-sectional view showing a state in which the composite container lid shown in FIG. 1 is attached to the mouth and neck of the container, the main portion of the composite container lid is removed from the mouth and neck, and the mouth and neck is opened. The side view shown.

[Explanation of symbols]

2: Metal outer lid 4: Synthetic resin inner lid 6: Outer lid top wall 8: Outer lid skirt wall 10: Outer lid break line 12: Main portion of outer lid skirt wall 14: Outer lid skirt Tamper evidence hem of wall 16: Slit of break line in outer lid 18: Bridge part of break line in outer lid 20: Locking recess 22: Top wall of inner lid 24: Skirt wall of inner lid 26: Inner lid 28: main part of skirt wall in inner lid 30: tamper-evidence skirt of skirt wall in inner lid 32: slit of break line in inner lid 34: bridging part of break line in inner lid 36: female screw Article 38: Annular projection 40: Projecting piece (locking means) 42: Axial breaking line 44: Seal member 46: Container 48: Mouth neck 50: Male thread 52: Engaging jaw 54: Annular projection

Claims (9)

[Claims] 1. A metal outer lid and a synthetic resin inner lid disposed inside the metal outer lid, wherein the outer lid has a top wall and a skirt wall hanging from the top wall. A rupture line extending in the circumferential direction is formed on the skirt wall, and the skirt wall is divided into a main portion above the rupture line and a tamper-evidence hem below the rupture line. The inner lid has a top wall and a skirt wall hanging from the top wall, and a rupture line extending in the circumferential direction is formed on the skirt wall, and the skirt wall is located above the rupture line. And a tamper-evidence hem below the breaking line, and is formed on the outer peripheral surface of the mouth and neck of the container on the inner peripheral surface of the main portion of the skirt wall. A female thread to be screwed into the male thread is formed, and the tamper of the skirt wall is formed. The inner peripheral surface of Ebidento skirt locking means is caused to engage with the engaging jaw portion formed on the outer circumferential surface of the mouth-and-neck portion of the container is formed, a composite container closure, characterized in that. 2. The tamper-evidence hem of the skirt wall of the outer lid extends downward beyond the lower end of the tamper-evidence hem of the skirt wall of the inner lid, and 2. The lid for a composite container according to claim 1, wherein the tamper-evidence skirt of the skirt wall of the lid is formed with a locking recess that is locked to the tamper-evident skirt of the skirt wall of the inner lid. . 3. The composite container according to claim 2, wherein the locking recess has an annular shape that extends continuously in the circumferential direction, and is locked to the lower end of the tamper-evidence skirt portion of the skirt wall of the inner lid. lid. 4. The break lines formed on the skirt wall of the outer lid are formed with a plurality of circumferentially spaced slits extending in the circumferential direction and a plurality of bridges located between the slits. The composite container lid according to any one of claims 1 to 3, wherein the lid is a composite container lid. 5. The break lines formed on the skirt wall of the inner lid have a plurality of circumferentially spaced slits extending in the circumferential direction and a plurality of bridges located between the slits. The composite container lid according to any one of claims 1 to 4, which is composed of a part and a part. 6. The locking means formed on the inner peripheral surface of the tamper-evident skirt of the skirt wall of the inner lid has one or a plurality of flexible members projecting radially inward. The composite container lid according to any one of claims 1 to 5, which is composed of a protruding piece. 7. The composite container lid according to claim 1, wherein at least one axial break line is formed in the tamper-evident skirt of the skirt wall of the inner lid. . 8. The axial break line comprises a slit extending axially through the tamper-evident skirt of the skirt wall of the inner lid.
The described composite container lid. 9. The composite container lid according to claim 8, wherein a plurality of the axial break lines are formed at intervals in the circumferential direction.