JP3041245U - Pilfap proof cap for packaging container - Google Patents

Abstract

(57) [PROBLEMS] To develop a cap for a container for packaging a liquid, which has a gas barrier property and a pill-proof property as an integral structure and does not require a separate packing member. SOLUTION: In a cap having a circular groove 6 that engages with and fits to the inner and outer peripheries of an opening end surface of a container, a convex strip 6a is provided around the inner surface of the circular groove, and gas and steam are provided on the back surface of a lid top plate 7. The barrier film 8 for preventing the permeation of the pill is attached to the cap body, and the pill-proof body 12 having the gripping piece 13 is integrally formed through the thin groove-shaped easy-cutting line portion 9 provided around the end of the cap body. It was formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs] Caps that fit into containers for packaging beverages, seasonings, etc. have a so-called pill-fap proof property that is provided with a mechanism for ensuring that the containers are unopened. Regarding the cap.

[0002]

2. Description of the Related Art In caps of packaging containers for beverages, seasonings, etc., so-called pilfap proof caps are often used, which guarantee that the containers are not opened due to mischief before reaching the final consumer. There is. For example, some soy sauce bottles have a thin wall by engraving a contour groove such as an ellipse in the center of the back side of the inner lid and projecting a knob with a ring formed on the front side. , A ring-shaped coating of aluminum or heat-shrinkable resin film from the side body of the cap to the outside diameter of the container, and removing the ring-shaped object when opening the cap, a tearing tab on the side body of the aluminum cap. There is a method in which a coating is formed to break the coating to open it.

[0003]

[Problems to be Solved by the Invention] Many of these conventional pill-fap-proof caps are used in addition to the original cap. For example, the container of seasoning such as soy sauce described above has a cap that tears and opens the spout as an inner stopper, and a normal cap is fitted to the mouth end of the container. In addition, in a 200 ml cup type container of sake, an aluminum cap with a structure in which the body of the cap is torn to release the mating with the container to open it, and a plastic cap is capped. Has been done. Since the double structure of such a pill-fap proof type cap increases the cost, it is desirable to have a pill-proof cap that is simpler and has excellent airtightness.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the present invention, in a cap having a circumferential groove that engages with and fits the inner and outer circumferences of the opening end face of a container, Pillar proof body with a height of 10 to 30 mm, which is provided with one to several ridges and has a thin wall-shaped cut-out portion at the lower edge of the side wall of the cap in contact with the outer peripheral surface of the container. By forming a knob and attaching a knob to the pill-proof body, and providing an easy-cutting portion such as a perforation in the axial direction at the base of the knob, excellent liquid tightness is achieved. We have also devised an inexpensive plastic pilfa proof cap that is easy to open.

Further, in a cap of a packaging container having a circular groove that engages and fits with the inner and outer peripheries of the opening end surface of the container, a film having a water vapor or gas barrier property is provided on the back surface of the top plate which is within the inner diameter of the circular groove. The cap was formed by insert molding or adhesion to prevent evaporation of volatile substances such as alcohol. The barrier film against gas, oxygen, etc. that can be used here may be a commercially available product, for example, a biaxially stretched polyamide film which has been subjected to a single-sided or double-sided corona treatment, PVDC, and silica vapor deposition (Mitsubishi Chemical Corporation). ).

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a pill-proof proof cap according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a partial cross section showing a state in which a pilfap proof cap 1 according to the present invention is fitted in a cup-type sake container 2, FIG. 2 is its plan view, and FIG. 3 is a tearing plucker. FIG. 4 and FIG. 5 are cross-sectional views showing the essential parts of the knob piece and the easily tearable part.

The container 2 shown by an imaginary line in FIG. 1 and by a solid line in FIG. 5 has a rim portion 3 whose cross-sectional shape is substantially semicircular (a flat portion may be formed). In the outer diameter near the open end of the container, the end of the semi-circular radius is followed by a primary constriction 4 and a secondary constriction 5 underneath. The length from the mouth end of the container to the secondary necked portion 5 is about 10 to 30 mm in this embodiment, but by making it longer, a sanitary good one can be obtained as described later. The primary necked portion 4 and the secondary necked portion have a diameter smaller than the outer diameter of the body of the container, and the depth thereof is preferably 0.5 to 2 mm and the vertical width thereof is preferably about 1 to 5 mm.

The pilfap proof cap 1 has a fitting groove 6 having a semicircular cross section symmetrical to the semicircular rim portion 3 at the mouth end of the container, and one to three thin grooves are formed on the inner surface of the groove. Low stripes 6a, 6a (see FIG. 4) are provided in a protruding manner, and a top plate 7 is stretched from the inner diameter side of the groove 6 toward the center. Permeation of gas, oxygen, etc. on the back surface of the top plate. A sheet or film 8 having a low rate (gas barrier property) is attached. The cap body 9, which is the outer diameter side of the semicircular fitting groove 6, has a ridge 10 which is closely fitted to the primary constriction 4 formed on the container 2 on the lower inner side thereof. Further, a pilfap proof body portion 12 is integrally formed in a drooping shape via a thin easy-to-cut line portion 11 provided around the lower portion thereof.

The pill-proof body 12 circulates the outer diameter of the container at a height (or width; hereinafter referred to as height) of 10 to 30 mm, and the lower end edge 12 a of the pill-proof body 12 is formed on the container 2. The diameter is reduced so as to fit closely to the formed secondary constriction portion 5, and a knob piece 13 is formed so as to project from one end of the outer periphery of the pill-proof body 12 along the outer periphery thereof. It is connected to the outer diameter of the pill faproof portion through a small-diameter column 14 formed near the tip of the knob piece 13. A perforated alignment hole 12b is formed in the pill-proof body 12 from the lower end to the easily cut line 11 at the upper end and along one end of the base 13a of the knob piece 14.

The pill-proof cap 1 is made of soft or semi-hard plastic such as polyethylene or polypropylene.

The pill-proof proof cap 1 of the present invention having the above-mentioned structure is filled with a liquid such as sake into the container 2 described above, and when the pill-proof cap 1 is press-fitted from the mouth end, the semi-circular fitting groove 6 is formed into the container mouth. The projection 10 that fits into the inner peripheral surface of the semicircular fitting groove 6 and is closely fitted to the primary necked portion 4 of the container 2 is provided around the inner surface of the fitting groove 6. The wires 6a, 6a are buckled in close contact with the container rim 3 and the state is maintained. Therefore, liquid tightness is maintained without the need for a separate packing made of rubber or the like between the container and the cap. In addition, the sub-minimized lower end peripheral edge 12a of the pill-puff proof body 12 which is connected to the lower portion of the body 9 of the pill-proof cap 1 is closely fitted to the secondary neck portion 5, and the cap 1 and the container 2 Further strengthen the close fit with.

The pill-proof proof cap 1 of the present invention fitted in this way is removed as follows. That is, the tip of the knob piece 13 projecting from one end of the pill-proof body 12 is gripped and pulled outward to tear off the small-diameter column 14. When pulled more strongly, the perforated alignment holes 12b of the pill-proof body 12 opened along the base portion 13a are torn off one by one from the edge, and the easy-cut line portion 11 is torn in a circular shape to further cut the pill-proof body. The part 12 is separated from the upper cap body part and separated, and only the cap body part remains in the container. This part is pulled out like a normal cap and pulled out.

[0013]

[Embodiment] An embodiment of the pill faproof cap of the present invention having the above structure will be described below. On the inner surface of the semi-circular fitting groove 6 in the cap 1, two regular triangular ridges 10 each having a side of approximately 1 mm are provided around, and silica is vapor-deposited on a biaxially stretched polypropylene film. Moreover, when a polyethylene pill-proof cap 1 having a resin-coated gas barrier film 8 mounted on the back surface of the top plate 7 was fitted into a container 2 filled with sake, it was used for a long time (3 to 6 in the experiment). It was possible to prevent the evaporation of alcohol without losing the aroma.

[0014]

EFFECTS OF THE INVENTION As described above, the pill-proof cap 1 according to the present invention has a container-shaped mouth end face and a cap, for example, a round strip 1 of arbitrary shape such as a convex strip having a semicircular cross section of 0.5 are. The three pieces easily buckle and adhere to each other, resulting in perfect liquid tightness. Therefore, it no longer requires a separate rubber packing as in the past.

In the cap of the present invention, since the vertical width of the pilfap proof part is 10 to 25 mm, the range of 15 to 35 mm is covered downward from the mouth end of the container, and the cleanliness is maintained. Is maintained. When the consumer drinks directly from this container, the part where the lips come into contact is within the above-mentioned covered range, which is favorable for hygiene.

In the cap of the present invention, the top plate portion is equipped with an impermeable sheet such as gas and water vapor, and a film, so that it is possible to prevent the evaporation of the filler or aroma.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing a state in which a cap according to the present invention is attached to a container.

FIG. 2 is a plan view showing a state in which a cap according to the present invention is attached to a container.

FIG. 3 is a front view of a cap according to the present invention.

FIG. 4 is a side view of a central cross-section showing an enlarged part of the cap according to the present invention.

FIG. 5 is a front sectional view showing a main part of a container into which the cap according to the present invention is fitted.

[Explanation of symbols]

 1 Pilfap Proof Cap 2 Container 3 Mouth Edge 4 Primary Constriction Part 5 Secondary Constriction Part 6 Fitting Groove 7 Top Plate 8 Film 9 Cap Body 10 Convex Strip 11 Easy Cutting Line Part 12 Pilfap Proof Part 13 Picking Piece 14 props

Claims (3)

[Utility model registration claims] 1. A cap having a circumferential groove that engages with and fits to the inner and outer circumferences of an opening end surface of a container, wherein 1 is provided in the circumferential groove.
~ 3 to 30 ridges around the bottom of the outer peripheral body of the cap 10 ~ 30 mm through a thin, easily cut thin portion
It is characterized in that a pill-proof body with a height is formed, a knob is attached to the body, and a perforated hole that is easy to cut in the axial direction is formed in the base of the knob. Pilfap proof cap for plastic packaging containers. 2. A cap having a circumferential groove that engages with and fits on the inner and outer circumferences of the open end surface of the container, wherein a film having a barrier property against water vapor or gas is attached to the back surface of the top plate inside the inner diameter of the circumferential groove. A pill-proof cap for a plastic packaging container according to claim 1, which is characterized in that 3. A pill-proof cap fitting container, characterized in that in the packaging container, two constricted portions are provided around the outer periphery of the opening end thereof.