JPH09142506A - Cap with classified disposability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap excellent in the classified disposability and also excellent in the tamper evident property. SOLUTION: A cap consists of a cap body 2 consisting of a top plate part 5, a skirt part 6, and an inner ring 7, and an upper lid 3 to be connected by the cap body 2 and a hinge 4 so as to cover the top plate part 5 of the cap body 2, and a part 8 to be opened for pouring demarcated by a score 9 and a pouring cylindrical part to surround the part 8 to be opened for pouring are provided on the top plate part 5 of the cap body. The hinge part 4 is breakable, the upper lid 3 is separable from the cap body 2, and a notch part 18 is formed at the lower end of an outer surface on the hinge part side of the skirt part 6, and in removing the cap from a mouth part of the container, the hinge 4 is broken to separate the upper lid 3 from the cap body 2, a bottle opener is placed on the notch part 18 and the pouring cylindrical part, and the bottle opener is turned with the top plate part 5 of the cap body as the supporting point so that the notch part 18 and the upper part of the pouring cylindrical part can be engaged with the bottle opener in the condition where the upper lid 3 is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap having a separating and discarding property, and more specifically, it can be easily removed from a container mouth when discarding a container and also has a tamper-evidence property. Regarding the provided cap.

[0002]

2. Description of the Related Art A cap composed of a cap body fixed to a container mouth and an upper lid covering a top plate portion forming a spout is firmly fitted to the container mouth by tapping from the viewpoint of sealing property. It is fixed. On the other hand, resin caps are often used for containers of different materials such as glass bottles and plastic containers made of resin different from the cap material, and the containers are discarded to meet the request for separate disposal of each material. In this case, it is desired that the cap can be easily removed from the container.

Various caps have been proposed which have improved separation and disposal properties. For example, the skirt of the cap body is provided with an engaging portion consisting of a convex portion or a concave portion that can engage with the cap opener, and when the container is discarded, the cap opener is hooked on the engaging portion, and the lever principle is used to cap the cap. It is known that the container is removed from the mouth of the container (actual flat 6-7
1454, Japanese Utility Model Laid-Open No. 7-40500, etc.).

Generally, in a cap of a type that is tightly fitted and fixed to the mouth of a container by tapping, the tamper-evidence property (hereinafter referred to as TE property) that clearly indicates that the container is opened at one end is , It is often judged by whether or not the pouring opening on the top plate of the cap body is already formed, but if the cap body easily comes off the container mouth by opening the cap as described above, the pouring will be performed. It is also possible to remove the cap before forming the opening and recap it, and there is a problem that the TE property cannot be sufficiently guaranteed.

[0005]

As a cap which does not cause such a problem, a ring is formed at the lower end of the cap body through a weakened portion, and after the contents are finished, the weakened portion is broken to skirt the ring. There is also known a cap which is removed from the skirt portion, and the lower end of the skirt portion is opened to remove the cap (Japanese Utility Model Publication No. 6-42713).

[0006] In this cap, the ring provided at the bottom of the cap body cannot be unplugged unless the ring is removed from the cap body. Therefore, a part of the cap body is destroyed and the cap is removed from the container mouth. The TE property is guaranteed as well as the separation and disposal property.

However, when the cap is plugged, the cap spreads in the radial direction, and therefore, in the cap having the weakened portion in the cap body, the weakened portion may be broken at the time of plugging. Moreover, the consumer may accidentally break the weakened portion except when the container is discarded.

[0008] Therefore, an object of the present invention is to provide a cap which can be easily removed from the container when the container is discarded, and which is excellent in tamper evidence.

[0009]

According to the present invention, there is provided a cap body including a top plate portion, a skirt portion and an inner ring, and an upper lid hingedly connected to the cap body so as to cover the top plate portion of the cap body. A cap body has a top plate portion provided with a planned pouring opening defined by a score and a pouring tube portion surrounding the pouring opening planned portion, wherein the hinge portion is rupturable and the upper lid is a cap. The skirt is separable from the main body, and a notch is formed at the lower end of the outer surface on the hinge side of the skirt. A cap is provided which is characterized by the fact that it is obtained.

[0010]

In the present invention, since the notch with which the bottle opener engages is provided in the skirt portion below the hinge portion, the bottle opener cannot be applied without removing the upper lid. . Therefore, in order to remove the cap from the container mouth to discard the container, it is necessary to first break the hinge part. By breaking the hinge part and separating the upper lid from the cap body, the cap opener engages with the notch part and the upper end of the spouting cylinder part can be caught and the cap can be removed, and the hinge part is broken. Therefore, it can be seen at a glance that the container is once opened, and the unsealing function, that is, the TE property is guaranteed.

In the cap removing operation, as described above, the hinge portion is first broken to remove the upper lid from the cap body. Next, the part that should be the point of action of the cap opener is engaged with the upper end of the notch or the inner surface of the skirt corresponding to the upper end of the notch, and the part that should be the fulcrum of the cap opener is the upper end of the cap body pouring tube part. Located in. When the handle part of the bottle opener is pulled up, the lever body causes the cap body to deform from the lower end of the skirt of the cap body located below the engaging portion of the bottle opener and the notch, making it easy to open the cap from the container mouth. It can be removed.

In the present invention, the hinge portion to be broken when removing the cap is relatively thin and has a shape that is easy to break in the cap, so that it can be easily torn off, requiring a special and complicated operation. The top lid can be removed without it. In addition, there is no risk that the consumer will accidentally break the product during use, and the upper lid can be removed without requiring special complicated operations.

In the cap according to the present invention, it is desirable that the hinge-side spouting cylinder portion is formed to have a height lower than that of the portion facing the hinge portion. Since the pouring tube on the hinge side does not affect the pouring of the contents so much, it is possible to make it lower, which makes it easier for the part that serves as the fulcrum for opening the stopper to be caught on the upper end of the pouring tube. The force is smoothly transmitted when pulling out, and the cap body can be easily removed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an example of an embodiment of a cap of the present invention, (A) is a plan view, (B) is (A).
3 is a side cross-sectional view taken along line XX of FIG. The cap 1 of the present invention is roughly composed of a cap body 2 and an upper lid 3, which are connected by a hinge 4 and integrally formed. The cap body 2 is composed of a top plate portion 5, a skirt portion 6 and an inner ring 7, and the skirt portion 6 adheres to the outer surface of the container mouth portion and the inner ring 7 adheres to the inner surface of the container mouth portion to maintain the hermeticity of the container. ing. A predetermined pouring opening portion 8 is partitioned by a score 9 at approximately the center of the top plate portion 5, and a tear tab 10 for breaking the score 9 is provided. Further, a spouting cylinder portion 11 is provided so as to surround the planned spouting opening portion 8,
The portion 11a facing the hinge 4 is highest and the hinge portion side 11b of the spouting cylinder portion 11 is the lowest, and an inclined portion 11c of which height changes is formed between them.

The upper lid 3 is composed of a top plate portion 12 and a skirt portion 13, and an annular protrusion 14 is provided inside the top plate portion 12.
Is formed, and with the upper lid 3 closed (B),
Good sealing property is secured even after the pouring opening is formed. The cap body 2 and the upper lid 3 are provided with an engagement protrusion 1 provided near the peripheral edge of the cap body top plate portion 5.
5 and the engaging projection 16 provided on the lower end of the upper lid skirt are engaged with each other when the upper lid 3 is closed (B). A gripping piece 17 for lifting the upper lid 3 upward is provided at a portion of the lower end of the skirt portion 13 of the upper lid 3 facing the hinge portion 4.

In the present invention, a notch 18 is provided below the hinge 4 of the cap body skirt portion 6.
The notch 18 is basically rectangular in shape, but in this embodiment, the upper end 19 projects downward, and its cross section is tapered on the inner surface side as it goes down from FIG. The thickness is reduced so that a space 20 is formed between the container and a container opening (not shown) (see FIG. 2B described later).

2 and 3 are views for explaining the removal of the cap of FIG. 1 from the container opening. FIG.
FIG. 4 is a side sectional view showing a state in which a hinge is broken, and FIG. 3 is a side sectional view showing a state in which a cap opener is engaged with a cap body. In the present invention, when removing the cap from the container mouth, the hinge 4 is first broken. As shown in FIG. 2, the hinge 4 is broken and the upper lid 3 is separated from the cap body 2. Then, as shown in FIG. 3, the engaging portion 22 a of the cap opener 22 is inserted into the gap 20 of the notch 18 of the cap body 2.
Engage the upper end 19 to insert. On the other hand, the tip end portion 22b of the bottle opener 22 is set according to the inclination of the inclined portion 11c of the spouting cylinder portion 11. Handle part 2 of bottle opener 22
When 2c is pulled up in the direction of the arrow P in the figure, the tip end 22b of the bottle opener serves as a fulcrum and the engaging portion 22 of the bottle opener is operated according to the lever principle.
Since a is the action point and the handle portion 22c is the force point, the cap body is rolled up from the upper end 19 of the notch as the action point, and the cap body 2 can be removed from the container mouth 21. is there.

In the present invention, the shape of the notch may be various other than the above-mentioned examples, as shown in FIGS. 4 to 7. 4 to 7, (A)
Is a plan view, (B) is a sectional view taken along the line XX in (A), (C) is a side view seen from the direction of the arrow Y in (A), and the example shown in FIG. Is the same as. For example, as shown in FIG. 4, the upper end 19 of the notch 18 is bent downward, or as shown in FIG. 5, the upper end 19 of the notch 18 is straight, and the skirt portion is simply cut into a rectangle. Alternatively, in this case, the upper end 19 of the notch 18 may be directly engaged with the engagement portion of the bottle opener.

Further, as shown in FIG. 6, the inner surface of the upper end 19 of the notch 18 can be inclined downward from the inner side to the outer side in accordance with the thickness of the skirt portion. As a result, the skirt corresponding to the upper end 19 of the notch becomes thinner as it goes downward, and a void 20 is formed between the skirt and the container mouth (not shown) as in FIG. As a result, the engagement portion of the bottle opener can be inserted into the gap 20 and a secure engagement is ensured.

Further, in the example shown in FIG. 7, the thickness of the upper end 19 of the notch is changed as in the embodiment of FIG. 6, but the upper end 19 is not sharpened as in FIG. ,
The upper end 19 is provided with a surface. In this aspect, since the cap opener is inserted into the gap 20 to ensure a firm engagement and the wall thickness can be secured at the lower end of the skirt portion corresponding to the upper end portion of the cutout portion, the engagement can be prevented. It is also possible to prevent deformation of the skirt portion. Further, a protrusion protruding outward may be provided at the upper end of the cutout portion.

Since the notch is provided as an engaging portion with the cap opener, its size should be set within a range that allows the cap opener to be easily engaged. The vertical length of the notch depends on the length from the upper end of the notch to the upper end on the hinge part side of the spouting tube, and the horizontal length corresponds to various sizes of the bottle opener. You should make a decision.

[0022]

EFFECTS OF THE INVENTION The cap of the present invention can be easily removed by using a cap opener even if it is firmly fitted to the container mouth portion, and is excellent in separation and disposal. Moreover, since the notch for engaging the cap opener is provided at the lower end of the cap body skirt below the hinge part, the cap opener can be engaged with the notch unless the hinge is broken and the upper lid is removed from the cap body. Therefore, the TE property is secured. Further, by changing the shape of the notch variously, the engagement can be made more reliable, and the cap can be easily removed.

[Brief description of the drawings]

FIG. 1 is a view showing an example of a cap of the present invention.

FIG. 2 is a diagram for explaining the removal of the cap of FIG. 1 from the container mouth.

FIG. 3 is a diagram for explaining the removal of the cap of FIG. 1 from the container mouth.

FIG. 4 is a view showing another example of the cap of the present invention.

FIG. 5 is a diagram showing another example of the cap of the present invention.

FIG. 6 is a view showing another example of the cap of the present invention.

FIG. 7 is a view showing another example of the cap of the present invention.

[Description of sign]

 1 Cap 2 Cap Main Body 3 Top Lid 4 Hinge 5 Cap Main Body Top Plate 6 Cap Main Body Skirt 7 Inner Ring 8 Expected Opening Portion 9 Score 11 Spout Cylinder 12 Top Lid Top Plate 13 Top Lid Skirt 14 Annular Protrusion 18 Notch 19 Upper end 20 Void 21 Container mouth 22 Opener

Claims (5)

[Claims] 1. A cap body including a top plate portion, a skirt portion and an inner ring, and an upper lid hinged to the cap body so as to cover the top plate portion of the cap body. The cap body top plate portion is divided by scores. In a cap provided with a planned opening portion for pouring and a pouring tube portion surrounding the planned opening portion for pouring, the hinge portion is rupturable, the upper lid is separable from the cap body, and the skirt A cap is characterized in that a notch is formed at the lower end of the outer surface on the hinge part side of the part, and the notch and the upper end of the pouring tube part can engage with the bottle opener with the upper lid removed. 2. The pouring tube portion is formed to be lower than a portion facing the hinge portion on the hinge portion side, and has a height capable of engaging with a bottle opener with the upper lid removed. The cap according to claim 1, wherein 3. The cap according to claim 1, wherein an upper end of the cutout portion projects downward. 4. The inner surface of the skirt portion corresponding to the upper end portion of the cutout portion is tapered from the lower end upward and inward, and a gap is formed between the inner side of the skirt portion and the container mouth portion. The cap described in 2. 5. The cap according to claim 1, wherein the upper end of the cutout portion is inclined downward from the inner side toward the outer side according to the thickness of the skirt portion.