JPH09165057A - Simply unsealable cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent surely a finger from touching a cut edge of a broken score in unsealing of a cap in a simply unsealable cap having a ring tab. SOLUTION: A finger movement-preventing protrusion which prevents a finger from moving to a cut edge at the time of unsealing a stopper is provided at a portion above a ring tab 6. The finger movement-preventing protrusion may be formed as protrusions 81 , 82 angularly protruding from both sides of an upper end of the ring tab 6, or may be an extending portion formed in such a manner that the upper part of the ring tab 6 is formed into a non- circular shape so as to extend outward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple opening cap having a ring tab hanging from the lower end of a skirt wall.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, there is a ring tab 52 hanging from the lower end of a skirt wall, and a finger is inserted into the ring tab to raise the ring tab so that the root tab of the skirt wall 51 extends from the top wall 53. A simple opening cap 50 is often used in which the score 54 formed in 2 is broken to remove the cap from the mouth of the container 60 so that the cap can be opened.

[0003]

As shown in FIG. 6 (b), the above-described conventional simple opening cap with a ring tab has a broken portion 56 of the cap body which is connected to the ring tab 52 when the cap is opened. The exposure of the cut edge portion 57 is unavoidable structurally. At the time of normal opening, by inserting a finger into the ring tab 52 and raising it, it is possible to safely open the cut edge without touching the cut edge portion. It is desirable to guard the edges to prevent physical contact with fingers.

The present invention was devised in view of the above circumstances, and in a simple opening cap having a ring tab, it is possible to reliably prevent a finger from touching the cut edge portion of the score broken when the cap is opened. It is an object of the present invention to provide a simple opening cap that can be more safely opened.

[0005]

As a result of repeating various experiments in order to solve the above-mentioned problems, the present inventor has found that as a measure to prevent the finger from touching the cut edge portion at the time of opening, The inventors of the present invention have arrived at the present invention by knowing that there are two methods, that is, a method for preventing the finger from moving and a method for directly covering the cut edge portion.

That is, the simple opening cap of the present invention is a simple opening cap having a ring tab hanging from the lower end of the skirt wall, and a finger is moved to the cut edge portion at the time of opening the upper part of the ring tab. The above problem is solved by adopting a technical means characterized by forming a finger movement blocking projection for blocking. The finger movement preventing protrusion may be formed as a protrusion that protrudes leftward and rightward from both sides of the upper end of the ring tab, or may be formed in a non-circular shape so that the upper portion of the ring tab projects outward. It may be an overhang portion formed by

Further, a simple opening cap according to another invention of the present application which solves the above problems is a simple opening cap having a ring tab hanging from the lower end of the skirt wall, and is broken by causing the ring tab. It is characterized in that the upper surface of the score is covered with a thin film.
As the thin film, a synthetic resin film or hot melt can be adopted.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a state in which a simple opening cap (hereinafter simply referred to as a cap) according to an embodiment of the first invention of the present application is attached to a container 60. In the cap 1 of this embodiment, a plastic ring tab 6 is integrally attached to the lower end of a ring tab attachment piece 5 extending from the lower end of the skirt wall 4 of the metal cap body 2. Like the conventional cap, a score 7 is formed on the top wall 3 surface through the skirt wall 4 from both upper sides of the ring tab attachment piece 5, and the score is broken by causing the ring tab 6, and the score is broken from the container. The cap can be removed to open the cap.

Although the structure described above is the same as the conventional one, the cap of this embodiment has the ring tab 6 in the cap.
On the left and right of the upper end of the body, the angular protrusions 8 ₁ and 8 ₂ forming the finger movement preventing protrusions that prevent the thumb and the middle finger from moving to the cut edge portion that is broken when the stopper is opened are integrally formed. Is characterized by.

The cap of the present embodiment is formed as described above, and when the cap is opened, the index finger is inserted into the ring tab 6 and the ring tab is raised upward as shown in FIG. Break. At that time, in particular the middle finger tends to move the cutting edge direction, since it is prevented from moving against the horn-like projections 8 ₁ even tries to move the cutting edge direction, the cap top wall upward at a steep angle to the ring tab Even if it is pulled up, the middle finger and thumb do not hit the cut edge portion 9 of the cap, and the cap can be safely opened.

The preferred embodiment of the simple opening cap for preventing the finger from moving to the cut edge portion according to the first invention of the present application has been described above, but the present invention is not limited to this embodiment. Instead, various design changes are possible. For example,
In the above-mentioned embodiment, the ring tab is formed of plastic which is separate from the cap body, but of course it may be formed of metal which is integral with or separate from the cap body. Further, the finger movement preventing protrusions are provided on both sides above the ring tab in the above-mentioned embodiment, but since there is almost no risk of the thumb touching the cut edge portion when opening the cap, it is possible to provide the finger movement preventing protrusions only on the side where the middle finger hits. However, it is not always necessary to insert the index finger of the right hand into the ring tab to open the cap, so it is desirable to provide it on both sides. Further, its shape can be changed to various shapes as shown in FIG.

In FIG. 3, the simple opening cap 10 shown in FIG. 3 (a) is an angular projection 1 provided above the ring tab 11.
The tips of 2 ₁ and 12 ₂ are formed by bending them upward by approximately 90 °, and show a modification of the protrusions in the above embodiment. In addition, the simple cap 1 shown in (b)
3 has finger movement preventing protrusions formed by protrusions 15 ₁ and 15 ₂ having rounded bottom surfaces from both upper sides of the ring tab 14. Further, in the simple opening cap 16 shown in (c), the ring tab 17 is formed in an inverted trapezoidal non-circular shape in which the central portion of the side piece is constricted, so that the overhanging portions 18 ₁ , 18 ₂ are formed on both sides of the upper portion. Is formed, and the projecting portion constitutes a finger movement preventing projection. Furthermore, in the simple opening cap 19 shown in (d), the bottom side is located on the upper side by forming the shape of the ring tab 20 in an inverted triangle shape, and both end portions of the bottom side project outward and the projecting portion 21. ₁ and 21 ₂ , which form a finger movement preventing projection. In the simple opening cap 19, even if the middle finger is flipped up at the time of opening, the finger escapes along the hypotenuse outward, so that it is prevented from coming into contact with the cut edge portion.

FIG. 4 shows a state in which the simple opening cap according to the second embodiment of the present invention is attached to a container. The simple opening cap 30 of this embodiment is a simple opening cap with a tab ring having the same configuration as the conventional one, and a synthetic resin film 33 that forms a thin film on the upper surface of the score 32 that is broken by causing the ring tab 31. It is characterized by being coated. In the present embodiment, the synthetic resin film 33 is configured so as to cover the skirt wall from the cap top surface, and is strongly bonded to the inner top surface of the score 32, which is the breaking portion, and the outer surface thereof is weakly bonded to facilitate peeling. However, weak adhesion may be applied to the entire surface.

The simple cap of this embodiment is constructed as described above, and when the ring tab 31 is pulled up at the time of opening, as shown in FIG. 4 (b), the synthetic resin film 33 is broken together with the broken portion 34. The outside of the portion is also peeled off from the cap body, and the peeled portion 35 spreads to the outside of the fractured portion to cover the cut edge portion 36. Therefore, even if the finger is raised and moved to the cut edge portion when the stopper is opened, the cut edge portion is covered with the synthetic resin film, and therefore the finger does not directly touch the cut edge portion, which is safe.

Although the thin film is formed of the synthetic resin film in the above embodiment, the thin film is not limited to the synthetic resin film and may be formed of hot melt. further,
Even if the area covered with the thin film does not need to cover the entire top surface of the cap, as shown in FIG. 5, it may be formed in a size that covers only the cut edge portion of the area that may be touched when a finger is raised. In addition, in the simple opening cap 40 shown in FIG.
Reference numeral 41 is a synthetic resin film forming a thin film.

[0016]

As described above, according to the present invention, in the simple opening cap having the ring tab, it is possible to reliably prevent the finger from touching the cut edge portion of the score that is broken when the cap is opened, and thus it is safer. It can be opened. Further, according to the configurations of claims 1 to 3, it is possible to reliably prevent the movement of the finger to the cut edge portion at the time of opening the plug simply by changing the configuration of the conventional ring tab. Further, according to the constitutions of claims 4 to 6, the conventional simple opening cap can be easily constituted only by coating with a thin film, and it is possible to surely prevent a finger from directly touching the cut edge portion.

[Brief description of the drawings]

FIG. 1 shows a state in which a simple opening cap according to an embodiment of the first invention of the present application is attached to a container, (a) is a perspective view thereof, and (b) is a side view thereof.

FIG. 2 is a perspective view showing a state in the middle of opening the stopper.

3A to 3D are side views showing different embodiments of the simple opening cap according to the first invention of the present application.

FIG. 4 is a perspective view showing a state in which a simple opening cap according to an embodiment of the second invention of the present application is attached to a container, FIG. 4A is a perspective view thereof, and FIG. is there.

5A and 5B show a state in which a simple opening cap according to another embodiment of the second invention of the present application is attached to a container, FIG. 5A is a perspective view thereof, and FIG. 5B is a perspective view showing a state in the middle of opening the same. It is a figure.

6A and 6B show a state in which a conventional simple opening cap is attached to a container, FIG. 6A is a perspective view thereof, and FIG. 6B is a perspective view showing a state in the middle of opening the container.

[Explanation of symbols]

1,10,13,16,19,30 Simple opening cap 2 Cap body 3 Top wall 4 Skirt wall 5 Ring tab attachment piece 6, 11, 14, 17, 20, 31 Ring tab 7, 32 Score 8 ₁ , 8 ₂ , 15 ₁ , 15 ₂ Protrusions 18 ₁ , 18 ₂ , 21 ₁ , 21 ₂ Overhanging parts 33, 41 Synthetic resin film 35 Peeling part 36 Cut edge part

Claims (6)

[Claims] 1. A simple opening cap having a ring tab hanging from a lower end of a skirt wall, wherein a finger movement preventing projection is formed at an upper portion of the ring tab for preventing a finger from moving to a cut edge portion when opening. A simple cap that is characterized by 2. The simple opening cap according to claim 1, wherein the finger movement preventing protrusion is a protrusion that protrudes from the both sides of the upper end of the ring tab in a left and right corner shape. 3. The simple opening cap according to claim 1, wherein the finger movement preventing protrusion is a protrusion formed by forming the ring tab in a non-circular shape such that an upper portion thereof protrudes outward. 4. A simple opening cap having a ring tab hanging from the lower end of the skirt wall, wherein the upper surface of the score broken by causing the ring tab is covered with a thin film. 5. The simple cap according to claim 4, wherein the thin film is a synthetic resin film. 6. The thin film is a hot melt.
The simple opening cap described.