JP3164537B2 - Inner lid made of synthetic resin with removal function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention achieves the object of preserving a synthetic resin inner lid attached to the mouth of a bottle, more specifically, preserving the initial contents of the bottle and preventing unauthorized opening of the bottle. The present invention relates to a synthetic resin inner lid stopper having a functional structure for removing the inner lid stopper from the bottle mouth when discarded after being made.

[0002]

2. Description of the Related Art A synthetic resin inner lid attached to a bottle mouth has been discarded while remaining in the bottle mouth even after the bottle has been used. Disposal of bottles remaining in the bottle mouth poses problems in recycling and incineration, and even in disposal, it is incompatible with today's legislation, which tends to require that materials be sorted and disposed of separately. There are various conventional examples for removing the inner lid stopper remaining at the bottle mouth, but basically a tab type is dominant. In the tab type, as shown in FIG. 8, the inner lid stopper A is attached to the bottle opening C in order to cut and remove the fastening portion 2 to the bottle opening C connected to the mounting portion 1. 2 is provided with a weakened portion such as a thin slit, and a tab 3 for cutting (cutting) the weakened portion is provided on the outer peripheral surface portion of the tightening ring portion 2. In this conventional example, although the tab 3 has the effect of ensuring that the tab 3 is cut (cut), the tab 3 is exposed in a crowned state, so that the contents remain in a state where they remain and can be discarded. Even if the bottle is not reached, there is a problem that the inner ring cap is accidentally detached due to the fact that the bottle ring 2 is removed due to the curiosity at the time of sales at the time of handling such as moving work and the like and the inner ring stopper 2 is removed. In order to solve this problem, the present applicant has proposed Japanese Patent Application Laid-Open No. 5-217906. In this prior proposal, as shown in FIG. 9, the outer peripheral surface of the outer cylinder 21 of the mounting portion 1 on which the engaging convex portion 21a for mounting the canopy B is formed,
A step 8 is formed between the outer peripheral surface of the collar portion 2 and the annular thin portion 4 which is formed on the inner peripheral surface of the collar portion 2. A thin slit for vertical splitting 5 extending to the fastening bead 12 at the lower end is cut in the fastening ring portion 2 crossing the slit 4, and a slit hole 15 communicating with the thin slit 5 for vertical split is formed in the step portion 8. Since the slit hole 15 is closed at the lower end surface of the canopy B and is not exposed to the outside in the crowned state, it is possible to prevent the fastening ring portion 2 from being erroneously cut or cut off at the store by mischief. .

[0003]

However, unless the tool 100 such as a screwdriver is inserted into the slit hole 15 to pry or gouge, the annular thin slit 4 and the vertical split thin slit 5 are not cut. Not
Not suitable for women and girls who mainly do housework. Dust and the like enter and accumulate from the slit hole 15 that is open at the top, causing the consumer to feel dirty and uncomfortable. There is a risk of causing a new problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances in the prior art, and the object thereof is to use a tab for easily tearing (removing) a fastening ring portion while using a tab at a storefront or during mischief. An object of the present invention is to provide a synthetic resin inner lid stopper having a removing function for preventing erroneous removal of the lid stopper and preventing intrusion of dust and the like.

[0005]

The technical means taken to achieve the above object is as follows. Claim 1 is a mounting portion provided with an outer cylinder having an engaging projection for covering a canopy; A ring connecting part which is connected to the part and mounts the mounting part to the bottle mouth part, the diameter of the ring part being larger than that of the mounting part, and the top surface of the step corresponding to the lower end of the canopy. On the corresponding surface, a tab is provided on the inner side of the portion actually engaging with the lower end of the canopy, and the tab is connected to the tab, an annular thin slit is provided on the corresponding surface portion inside the tab, and the tab is connected and tightened. The gist is that thin slits for vertical splitting are formed on the inner peripheral surface of the ring portion. A second aspect of the present invention is that the tab according to the first aspect is formed of a thin inclined piece that is inclined in a direction of the outer cylinder of the mounting portion. According to a third aspect of the present invention, an accommodating recess for accommodating the distal end of the tab is provided in the outer cylinder according to the second aspect, and the accommodating recess has a front view shape that secures a finger insertion portion on a side edge of the tab. The gist is that it is formed.

According to the above technical means, the following effects are obtained. (Claim 1) The synthetic resin inner cap with the removal function completely protects the tab with the cap when it is not in the hands of the consumer, such as when arranging it at the store or selling at the store, so that erroneous cutting, Prevents the mounting part from being removed from the mouth of the bottle due to prank. When the contents are consumed and the inner lid stopper is removed from the bottle mouth, the tab is picked and pulled in the circumferential direction to cut both the annular thin slit and the vertical slit, and remove the mounting part from the bottle mouth. make it easier. (Claim 2) In the synthetic resin inner lid plug having the removing function, a finger is put on a side edge of a thin inclined piece which is inclined in the outer cylinder direction, and the inclined piece is pinched and pulled in the circumferential direction. As in the second aspect, it is easy to remove the mounting portion from the bottle mouth.
The tabs are flat and inclined in the direction of the outer cylinder, making them difficult to recognize as tabs. (Claim 3) The synthetic resin inner lid plug having the removing function makes it easy to pick the inclined tab by the finger insertion portion secured on the side of the side edge of the tab.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 8 show an embodiment of a synthetic resin inner lid stopper having a removing function according to the present invention.

The synthetic resin inner cap A is an integrally molded product of a mounting portion 1 made of polypropylene, polyethylene, or the like, and a ring fastening portion 2.

As shown in FIG.
An inner cylinder 11 disposed inside, an outer cylinder 21 engaged with the outside of the bottle mouth C, a drain cylinder 31 extending upward from the inner cylinder 11 to discharge the contents of the bottle, and a top plate section connecting them 41, and a tension ring is provided on the top surface of the top plate 41 located in the drainage cylinder 31.
The extraction port 51 that opens by pulling the 51a can be formed.

The outer cylinder 21 is formed with an engaging projection 21a such as a bead or a screw on the outer peripheral surface thereof, so that the canopy B is attached thereto.

The fastening portion 2 is connected to the lower end of the mounting portion 1 with a diameter larger than that of the mounting portion 2. A fastening bead 12 is provided around the inner peripheral surface of the lower end, and a connection with the mounting portion 2 is formed. Step top
22 is a surface 22a corresponding to the lower end surface of the canopy B.

As shown in FIGS. 3 and 4, a tab 3 is provided on the top surface 22 of the stepped portion of the ring-fastening portion 2, and the tab 3 is connected to the corresponding surface 22a on the inner side of the tab 3. An annular thin slit 4 is connected to the tab 3, and a vertically split thin slit 5 is formed on the inner peripheral surface of the fastening ring 2 so as to communicate with the tab 3.

As shown in FIG. 3, the tab 3 has a substantially inverted shape in the circumferential direction on the step top surface 22 (corresponding surface 22a) at a portion inside the portion actually engaged with the lower end surface of the canopy B in the circumferential direction. It is made to protrude with. Thus, in the crown B covered state, the tab 3 is hidden by the crown B and is not exposed to the outside.

The annular thin slit 4 starts at a base end of the tab 3, that is, a portion close to the joint with the step top surface 22, and extends along the outer peripheral surface of the outer cylinder 21.
It is engraved on the upper surface (surface) of 22 with about 3/4 or 4/5 rotation.

The vertical slit 5 is a straight slit 15 having a length of about several millimeters and formed on the inner surface (back surface) of the step top surface in parallel with the tab and continuously to the base end of the tab 3.
And a slanted slit 25 engraved with a length from the end of the linear slit 15 to the fastening bead 12. The slanted slit 25 pinches the horizontal piece 13 of the tab 3 and Is gradually inclined in the traveling direction (arrow D). Note that the linear slits 15 need not necessarily be parallel, and may be inclined toward the outer peripheral edge of the step top surface 22 in the traveling direction (arrow D).

The tab 3 is hidden by the cap B when the synthetic resin inner cap A having the above configuration is in the crowned state. When discarding the bottle whose contents have been used, the cap B is removed from the outer cylinder 21 of the mounting portion 1 and the tab 3 appears.

Then, by pulling the horizontal piece 13 of the tab 3 in the circumferential direction (the traveling direction (arrow D)), a thin slit 5 for vertical splitting continuous with the base end of the tab 3 and an annular thin slit 4 are cut together.

As a result, the fastening ring 2 that has fastened the mounting portion 1 to the bottle opening C is cut off, and the mounting portion 1 can be easily removed from the bottle opening C.

Referring now to FIG. 5, in this embodiment, the tab 3 is positioned slightly outside, and the starting end of the annular thin slit 4 is partially outwardly connected to the base end of the tab 3. This is an example in the case of being disposed in the first embodiment, and is operatively similar to the above-described embodiment.

Still referring to FIG. 6, the tab 3
Shows an embodiment in which a hole having the same shape as that of the tab 3 is opened in the step top surface 22 portion facing the opening for convenience of molding. The shape of the tab 3, the configuration of the annular thin slit 4, and the configuration of the vertical slit 5 are the same as those of the above-described embodiment, and the same reference numerals are given thereto, and the description is omitted. In addition, although the hole is opened, since the tab is closed from above, entry of dust and the like can be prevented.

The embodiment shown in FIGS. 7 and 8 will be described. This embodiment is an example in which the tab 3 is not shaped like a letter as described above, but is inclined toward the outer cylinder 21. . The tab 3 is a thin inclined piece that is inclined so as to approach the step top surface 22, and is recognized as the tab 3 in comparison with the above-described tab 3 because of its planar shape approaching the step top surface 22. In consideration of the difficulty, a rib 23 is protruded from one side edge portion on the side away from the traveling direction (arrow D), that is, the edge portion on the opposite side to have rigidity.

The tip of this inclined piece 3 'is an outer cylinder.
It is housed in a housing recess 6 recessed in 11.

The reason for accommodating the tip of the inclined piece 3 ′ in the accommodating recess 6 is to make it difficult to pick the tab (inclined piece) 3 as much as possible. Instead, one side edge of the tab 3, that is, the rib 23 is attached. It is recessed with a laterally long shape in a front view that secures the finger insertion portion 16 on the side of the protruding edge portion.

Further, the annular thin slit 4 is continuous with the base end of the inclined piece 3 ′ on the side of the traveling direction (arrow D), and the vertical slit 5 is formed in the traveling direction at the edge portion where the rib 23 is protruded. It is continuous with an inclined shape. The hole directly below the inclined piece 3 'is a hole which is formed in the same manner as in the above embodiment.

In the embodiment shown in FIGS. 7 and 8, since the tab 3 is inclined with a thin flat surface in a direction approaching the step top surface 22, it is difficult to recognize the tab 3 as it is. Then, a fingernail or a finger is inserted into the finger insertion portion 16, the tab 3 is raised so that the distal end side thereof comes out of the accommodation recess 6, and the tab 3 is pulled in the circumferential direction (the traveling direction (arrow D)) in the same manner as in the above-described embodiment. As a result, both the vertical slits 5 and the annular thin slits 4 are cut.

Although not shown in the drawings, the first embodiment is directed to a case where the tab 3 is disposed flush with the top surface 22 of the step and is partially cut out so as to be connected to the top surface 22 of the step. Includes In this case, the slit width of the notch is made as narrow as possible so that dust or the like does not enter.

[0027]

As described above, the present invention is constructed as described above. Therefore, at the time of moving work such as display at a store or sales at a store, a tab which is protected by the cap and not exposed is picked up and discarded when the bottle is discarded. The ring can be cut. Therefore, although the tab ring type can be easily cut using fingers without using a tool, the ring ring is cut off incorrectly at the time of moving work such as displaying at a store or selling at the store. It has a removal function that does not cause the ring part to be cut by pranks, and does not leave a space with an open top like a slit hole. It is possible to provide a synthetic resin inner lid stopper that is not produced. In addition, when the tab is formed of a thin inclined piece that is inclined in the outer cylinder direction of the mounting portion, the locking portion is not erroneously cut, and the locking portion is not cut by mischief. Since it is inclined with a thin flat surface in the direction approaching the top surface, it is difficult to recognize it as a tab, and therefore, it can also contribute to the prevention of the problem that the ring portion is cut off by curiosity of a child etc. during normal use. . No. In addition, an accommodating recess for accommodating the distal end of the tab is formed in the outer cylinder, and the accommodating recess is formed in a front view shape in which a finger insertion portion is secured to the side of the side edge of the tab. Even if is steeply inclined (inclined in a direction approaching the top of the step), the tab can be picked by inserting and raising the nail or finger of the finger holder. Therefore, since the flat and inclined tabs are closer to the top of the step, it is difficult to recognize them as tabs, so that they can be excluded from objects of curiosity such as infants during normal use, and adults pick the tabs spontaneously. It is also possible to provide a certainty of cutting the ring fastening portion, and to provide a synthetic resin inner lid plug having an optimum removing function in consideration of prevention of cutting of the ring fastening portion during normal use.

[Brief description of the drawings]

FIG. 1 is an exploded front view of a synthetic resin inner lid plug having a removing function, which is partially cut away.

FIG. 2 is a sectional view taken along the line (A)-(A) of FIG.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a sectional view taken along line (B)-(B) of FIG. 3;

FIG. 5 is a perspective view of a main part of a modification.

FIG. 6 is a perspective view of a main part of another example.

FIG. 7 is a perspective view of a main part when a tab is an inclined piece.

FIG. 8 is a sectional view taken along line (C)-(C) of FIG. 7;

FIG. 9 is a front view of a conventional example.

FIG. 10 is an exploded front view of another conventional example, partially cut away.

[Explanation of symbols]

A: Synthetic resin inner lid stopper 1: Mounting part 2: Ring fastening part 21a: Engagement convex part B: Canopy C: Bottle mouth part 22: Step top surface 22a: Corresponding surface 3: Tab 4: Ring-shaped thin slit 5: Thin slit for vertical split 3 ': Slope piece (thin slope piece) 6: Containing recess 16: Finger insertion part

Claims (3)

(57) [Claims] A mounting portion provided with an outer cylinder having an engagement convex portion for covering a canopy; and a fastening portion connected to the mounting portion and mounting the mounting portion to a bottle mouth portion; The fastening part has a larger diameter than the mounting part, and the top surface of the step is made to correspond to the lower end surface of the canopy, and a tab is provided inside the corresponding surface on the inner side of the part that actually fits the lower end surface of the canopy. The annular thin slit is formed in the corresponding surface portion inside the tab in contact with the tab, and the vertical slit is formed in the inner peripheral surface of the fastening ring portion in contact with the tab. A synthetic resin inner lid plug that has a characteristic removal function. 2. The synthetic resin inner lid stopper having a removing function according to claim 1, wherein the tab is formed of a thin inclined piece inclined in a direction of an outer cylinder of the mounting portion. 3. A housing recess for accommodating the tip end of the tab is formed in the outer cylinder, and the housing recess is formed in a front view shape that secures a finger insertion portion beside a side edge of the tab. The synthetic resin inner lid stopper having a removing function according to claim 2, characterized in that: