KR101038894B1 - Container cap - Google Patents

Abstract

PURPOSE: A cap of packing container for stably connecting a cap main body and a fixing ring is provided to prevent the slack and rocking of a cap main body by setting the opening angle of a cap main body. CONSTITUTION: A cap of packing container for stably connecting a cap main body and a fixing ring comprises a fixing ring(33), a cap body part(31), a hinge part(35), and a plurality of bridges. The fixing ring prevents the idling and the separation from a main body. The cap body part opens and closes the enclosure body. A screw part is formed in the inner circumference of the cap body part. The hinge part interlinks the fixing ring and cap body part. A plurality of bridges is formed between the cap body part and the fixing ring. A cutting ling(37) of the fixing ring is formed on the set section of the circumference of the fixing ring in order to be extended toward the cap body part. A recessed groove(a) is stepped from the rib of the fixing ring and the cap main body.

Description

Packing Container Cap {CONTAINER CAP}

The present invention shows the opening of the plug by having a hinge for forming the opening groove at the same time as the opening of the screw-type stopper, and the connection of the stopper body and the fixing ring is made stable, the plug when opening The present invention relates to a packaging container stopper that maintains a set opening angle of the main body to prevent sagging and shaking of the main body of the main body, and thus the opening and closing operation is made elastic.

In general, a container for storing liquid materials such as food and beverages, such as bottled water or milk, and oils, paints, and chemicals is provided with a container body in which a spout is formed and a stopper for opening and closing the spout of the container body. Desorption is roughly classified into screwed or one-touch type.

1 and 2, the screw-type stopper 130 is formed with a threaded portion corresponding to the container body 110 in which the threaded portion is formed on the inner circumferential surface, and when the stopper is completely separated from the container, Since there is a risk of loss, the fixing ring 133 is prevented from being separated from the container body 110 under the stopper body 131 so that the stopper is connected to the container body even when the container 100 is opened.

In addition, the plug body 131 and the fixing ring 133 is connected to a plurality of bridges 135 formed radially and when the plug is opened, the bridge 135 is cut to leave an opening trace.

By the way, such a prior art, the fixing ring 133 is coupled to the container body 110 so that idling is possible, the open stopper body 131 is idling with the fixing ring and the plug body by its own weight when the contents are discharged. The lower part is located in the user's mouth or jaw not only to give a discomfort, but also cumbersome, there was a problem that the contents dirty on the stopper.

On the other hand, in the one-touch stopper 130A that is not screwed, as shown in FIG. 3, the fixing ring 133a fixed to the container body and the stopper main part 131a which is opened and closed are connected to the hinge 135a. It is.

The hinge portion is formed to have a step thickness thinner than the plug body portion 131a and the fixing ring 133a for opening and closing operation, and the width connecting the plug body portion and the fixing ring has a gap between the plug body portion and the fixing ring when the plug is opened. Correspondingly, since it is formed in a form that gradually increases to both sides from the middle portion of the hinge portion, there is an advantage that the connection is made stable upon opening.

On the other hand, even if the screw-type stopper provided with a stable hinge, such as a one-touch stopper there is no fear that the connection is cut and will have a firmness without shaking the stopper body when opening.

However, the hinge portion of such a configuration is difficult to generate an undercut because the indentation step is formed on the inner peripheral surface of the stopper.

In the one-touch stopper, the fixing ring 133a and the stopper body part 131a are injection molded in the unfolded state with the hinge part 135a in between to solve the undercut problem of the hinge part. Since the bridge for checking whether the opening is formed integrally between the fixing ring and the cap body part, the fixing ring and the cap body part should be ejected in a vertically arranged state coupled to the container body, and the cap body and the fixing ring are opened. There is a problem that injection is impossible.

In other words, in the prior art screw-type stopper having a bridge there is a problem that can not be provided with a stable hinge portion of the stopper body at the time of stable connection and opening, such as in the case of one-touch stopper due to the technical limitations on the undercut treatment .

The present invention is to solve the above problems,

It is an object of the present invention to indicate the opening of the plug by having a hinge for forming the opening groove at the same time the opening of the screw coupling stopper, and the connection of the stopper body and the fixing ring is made stable, open The stopper body part maintains the set opening angle to prevent the plug body part from sagging and shaking, and the opening and closing operation is elastic, thereby providing a packaging container stopper to significantly improve the feeling of use.

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Packaging container closure according to the present invention to achieve the above object is

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Fixing ring to prevent separation from the container body and to prevent idling, opening and closing the container body, the cap body portion formed with a screw on the inner peripheral surface. It is composed of a hinge portion connecting the fixing ring and the stopper body portion and a plurality of bridges formed between the stopper body portion and the fixed ring and cut when opening the stopper,

The fixing ring is formed with an incision line for extending the connection length to the stopper body portion in the set section around the fixing ring around the hinge portion,

The hinge portion is characterized in that the groove formed by the undercut portion of the inner slider and the stopper body portion and the fixing ring inwardly formed with the flesh of the stopper body portion and the fixing ring.

According to the packaging container stopper according to the present invention having the above configuration is provided with a hinge for forming the opening groove at the same time in the screw-type stopper to indicate the opening of the stopper to indicate the opening and closing of the stopper body portion and the fixed ring When the connection is made stable, the plug body maintains a set opening angle when opening, and there is a remarkable effect that the opening and closing operation of the plug body part is elastic and the feeling of use is improved by the opening and closing of the plug body.

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1 is a screw coupling stopper configuration of the prior art
2 is a variable state diagram of FIG.
3 is an open state perspective view of a one-touch stopper
Figure 4 is a plan view of a plug injection molding apparatus of one embodiment for the manufacture of the present invention
5 is a cross-sectional view taken along the line AA of FIG.
6 is a cross-sectional view taken along the line BB of FIG.
7 is a variable state diagram of FIG.
8 is a top view of an outer slider excerpt of one embodiment for the manufacture of the present invention
FIG. 9 is a partial cross-sectional view of the CC line of FIG. 4. FIG.
FIG. 10 is a variable state diagram of FIG. 9.
FIG. 11 is a variable state diagram of FIG. 9.
12 is an exploded perspective view of a core of one embodiment for the manufacture of the present invention;
13 is a perspective view of a plug according to an embodiment of the present invention
14 is a bottom perspective view of FIG.
15 is a perspective view of one use state of FIG. 13;
16 is a longitudinal cross-sectional view of FIG.
FIG. 17 is a bottom view of FIG. 13
18 is a cross-sectional view of the open state of FIG.
Figure 19 is an enlarged view of the hinge portion viewed from the inside of the plug of Figure 13
20 is a cross-sectional view taken along the line DD of FIG. 19.
21 is a perspective view of a plug according to an embodiment of the present invention
FIG. 22 is an open perspective view of FIG. 21
Figure 23 is a stopper perspective view of one embodiment according to the present invention
24 is a perspective view of the open state of FIG.
25 is a perspective view of a stopper of one embodiment according to the present invention
FIG. 26 is a longitudinal cross-sectional view of FIG. 25.
27 is a cross-sectional view of another example corresponding to FIG. 26.
28 is a sectional view of another example corresponding to FIG. 26

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
First, an embodiment of a stopper injection molding apparatus for manufacturing the present invention will be described in more detail with reference to the accompanying drawings.

The plug injection molding apparatus 200 according to one embodiment for manufacturing the present invention is inclined toward both sides of the upper forming portion 231 and the upper forming portion to form the upper portion of the plug external shape, as shown in FIGS. Horizontal slides facing each other by the slider operating pins on the upper plate 230 having a pair of slider operating pins 233 and 234 formed thereon, and a stripper 260 positioned below the upper plate 230. And a pair of outer sliders 241 and 243 for forming a lower portion of the stopper outer shape and a core unit 250 for forming the inner shape of the stopper.

The core unit 250 includes a core body 251 in which a pocket 2511 is recessed in a corresponding portion for the undercut treatment of the stopper hinge portion, and an undercut portion 2533 for forming the hinge portion of the stopper portion. It is configured to include an inner slider 253 which is installed to be mounted on the.

Here, the inner slider 253 has an undercut portion 2533 protruding from one side of the upper portion, and the insertion portion 2531 and the insertion portion 2253 are located in the pocket and extend out of the pocket on the lower plate 270. An elastic member 255 which is horizontally slid and a supporting portion 2536 in which a wedge hole 2537 is formed is integrally formed (see FIGS. 9 and 12) and is installed at the rear of the inner slider 253 to push the inner slider into the pocket. Is provided, the upper plate 230 is preferably provided with a wedge 235 is inserted into and detached from the wedge hole (2537) of the inner slider 253.

In the inner slider 253, when the plug injection molding is performed, the undercut portion 2533 of the insertion portion 2253 protrudes outward to form the hinge portion 35 groove a (see FIG. 15) of the plug. At the time of taking out the plug, the plug is immersed into the pocket 2511 of the core body so as not to interfere with the plug taking out.

The undercut portion 2533 of the inner slider is variously formed according to the shape of the hinge portion recess of the plug.

In addition, the wedge 235 is formed in the form of a square weight of the upper and lower strait, the wedge hole 2537 is formed through the square hole of the upper and lower strait corresponding to the wedge 235, the support portion 2536 of the inner slider slides The lower plate 270 is preferably formed with a wedge fixing groove 271 for inserting and fixing the tip of the wedge 235 when the wedge is fastened to the inner slider.

Insertion of the wedge is guided by forming the wedge 235 and the wedge hole 271 in the form of the upper and lower narrowing as described above, and the inner slider is firmly formed during injection molding by forming the wedge fixing groove 271 in the lower plate 270. Is located.

Corresponding guides are formed on the support portion 2536 and the lower plate 270 to horizontally slide the inner slider 253.

As an embodiment of a plug injection molding apparatus for manufacturing the present invention, the core body 251 is a support wing 34 (see Fig. 14) is formed, as shown in Figures 9 and 12 The upper mold 251a and the lower bundle 251b are cut and formed to be separated based on the wing forming portion 2515, and the upper bundle 251a and the lower bundle 251b have a screw head having a lower internal space below the lower bundle. It is located in the (2514) is connected by a connecting screw (2516) through the lower bundle (251a) and screwed to the upper bundle (251b), the coil between the lower bundle (251b) and the screw head of the connection screw (2516) Preferably, spring 2517 is installed.

The coil spring 2517 is designed so that the return is made slowly so as to detach the support blade 34.

In addition, the outer sliders 241 and 243 are formed to be formed by dividing the lower portion of the plug outer shape as shown in FIG. 8, and guides corresponding to the strippers are formed on the stripper 260 for horizontal movement.

It looks at the action state of the plug injection molding apparatus 200 having such a configuration.

6 and 9, the upper plate 230 and the pair of outer sliders 241 and 243 are set to shape the shape of the stopper, as shown in FIGS. 6 and 9, while the core unit 250 is injected. ) Inner slider 253 of the core 251 protrudes from the outer periphery of the core unit 250 so that the undercut portion 2533 of the insertion portion (2531) located in the pocket (2511) formed in the core body 251 to form the groove of the stopper; Is located.

The inner slider 253 is fixed by the wedge 235 fixed to the upper plate to maintain the position of the inner slider 253 against the pressure generated during the injection of the resin melt.

At this time, the upper bundle (251a) and the lower bundle (251b) formed by separating the core body 251 is in close contact with each other by the elasticity of the connection screw (2516) and the coil spring (2517).

In the plug ejection step through injection and curing of the resin melt, as shown in FIGS. 7 and 10, the slider operating pins 233 and 234 and wedges fixed to the upper plate while the upper plate 230 is raised are shown. Raise (235).

Lifting of the inclined slider operating pins 233 and 234 opens the pair of outer sliders 241 and 243 to both sides while the wedge 235 is disengaged from the wedge holes 2537 of the inner slider support. .

Then, the inner slider 253 from which the wedge is pulled out is pushed into the pocket 2511 of the core body by the elastic member 255 installed at the rear end, and the undercut portion 2533 of the insertion portion enters into the pocket 2511. It does not interfere with the extraction of the stopper.

In addition, the core body 251 formed by separating the upper bundle 251a and the lower bundle 251b has a support wing 34 formed on the stopper 30 when the ejector 280 raises the stripper 260 for taking out the stopper. ), The upper bundle 251a is lifted from the lower bundle 251b with the stopper 30, which is an injection molding, and is spaced apart between the upper bundle 251a and the lower bundle 251b, and the support blade of the plug through this gap ( 34 (see FIG. 14) is smoothly released.

When the upper bundle 251a is lifted from the above, the screwed connection screw 2516 rises with the upper bundle and the rising interval is designed to be about 5 mm.

Thereafter, the connecting screw 2516, which was raised together with the upper bundle by the coil spring 2517 installed between the screw head and the lower bundle 251b of the connecting screw 2516, returns to its original position, and the upper bundle 251a is lowered. The stripper 260 is brought into contact with the bundle 251 b again, and the stripper 260 which is continuously rising is pushed up the stopper 30 to take out the stopper.

On the other hand, the screw portion 311 of the stopper may be deformed as it is forcibly removed by the stripper, but the hardening is made and the shape of the screw portion is formed evenly in the circumference when the stopper is circumferentially pressured in the entire circumference.

After the plug is taken out, the ejector 280 and the stripper 260 return to their original positions in the reverse order, and the slider operation pins 233 and 234 and the wedge 235 descend as the upper plate 230 descends, and the slider operation pin The outer sliders 241 and 243 are horizontally returned by falling, and the wedges 235 are lowered, and the inner sliders 253 are formed on the outer periphery of the core unit 250 by the lowering. It is secured to protrude to prepare for the next injection.

At this time, the wedge 235 and the wedge hole (2537) is formed in the upper and lower narrow shape, respectively, the wedge 235 is inserted into the wedge hole (2537) while moving the inner slider 253 to position.

The plug injection molding apparatus for manufacturing the present invention is provided with the inner slider 253 for forming the hinge portion recess groove on the core body 251 so that the plug body 31 and the fixing ring 33 of the plug It is provided with a bridge 39 (see Fig. 14, 15) for checking whether the opening is therebetween, and the screw-type stopper having the groove hinge portion 35 enables injection molding in an accurate form.

In addition, in the core unit 250, the core body 251 is separated into an upper bundle 251a and a lower bundle 251b based on the support wing forming part of the stopper, so that the deformation of the support blade is made smoothly, thereby causing deformation failure. Minimize and significantly improve the quality of the injection stopper.

Packaging container stopper 30 according to the present invention is molded by the stopper injection molding apparatus 200, as shown in Figures 13 to 20, the fixing ring to prevent the departure from the container main body 10 and idle rotation (33), the stopper body portion 31, which opens and closes the container body 10, and has a screw portion 311 formed on the inner circumferential surface thereof. A hinge portion 35 connecting the fixing ring 33 and the stopper body part 31 and a plurality of bridges 39 formed between the stopper body part 31 and the fixing ring 33 and cut when the stopper is opened. It consists of, the fixing ring 33 has a cutting line 37 for extending the connection length for the stopper body portion 31 in the set section around the fixing ring 33 around the hinge portion 35 below the center (35) It is formed, the hinge portion 35 is the groove body (a) formed by the inner slider of the plug injection molding apparatus into the plug body portion 31 and the fixing ring 33 inside the plug body portion 31 and fixed It is characterized by consisting of a step (살) and the step of the ring (33).

' 형태로 형성되고, 상기 직선부(d)는 절개됨이 바람직하다.19 and 20, the hinge portion 35 according to the present invention, the groove (a) has a peak at the stopper body portion 31 and the fixed ring 33 respectively of the stopper body portion and the fixed ring Is surrounded by an arc-shaped curved portion (c1) (c2) adjacent to the boundary line (b) and a straight portion (d) connecting both ends of the two arc-shaped curved portions (c1) (c2).

'Is formed in the shape, the straight portion (d) is preferably cut.

The two arc-shaped curved portions c1 and c2 are designed to maintain a set opening angle in a tension state when the mutually spaced and curved shapes are opened.

The hinge portion 35 is formed to be convexly curved outward as the width between the upper and lower sides increases, and toward the convex apex f from a point e connected to the stopper body portion 31 and the fixing ring 33. It is preferable that the thickness becomes gradually thin and the convex apex part f is formed to the minimum thickness.

The opening operation of the plug has a shape in which the groove (a) of the hinge part 35 and the flesh and step of the plug body part 31 and the fixing ring 33 are formed accurately, so that the moment that the plug body part 31 is flipped occurs. do.

' 형태의 정밀한 치수관리가 필요하며, 요홈(a)이 각이 지는 단턱으로 형성되지 않고 라운드형성될 경우에는 마개본체부가 젖혀지는 각도가 나오지 않아 힌지부의 기능을 수행하기 어렵다.Thus, the hinge portion 35 is the step of the groove (a), thickness, degree of convexity to the outside, '

'It requires precise dimension management of the shape, and when the groove (a) is not formed as an angled step but is formed round, it is difficult to perform the function of the hinge part because the plug body part does not come out.

As described above, the groove (a) having the stepped portion accurately formed includes an undercut portion during injection molding and may be injection molded through the plug injection molding apparatus 200 having the inner slider 253.

' 형태로 형성되고, 상기 직선부(d)는 절개됨으로써 개방시 마개본체부(31)가 하방으로 쳐져 불안정하게 흔들리는 일 없이 설정 개방각도를 안정적으로 긴장 유지한다.In addition, as described above, the groove (a) of the hinge portion 35 is an arc-shaped curved portion where the vertices of the plug body portion 31 and the fixing ring 33 are close to the boundary line (b) of the plug body portion and the fixing ring, respectively. (c1) (c2) and the straight portion (d) connecting both ends of the arc-shaped curved portions (c1) (c2)

It is formed in the form, the straight portion (d) is cut open when the stopper body portion 31 is struck downwards to maintain a stable tension of the set opening angle without shaking unstable.

The opening angle design of the plug body part may be different according to the use of the packaging container. Especially, in case of the beverage packaging container, the plug body part is designed so as not to touch the user's nose.

In addition, since the opening angle is stably maintained, when the container is inclined in the open state to pour out the liquid contents, the opening angle of the stopper body is maintained firmly, and the occurrence of folding or sagging is prevented, thereby improving usability and safety.

In addition to this, the thickness of the convex apex part f is formed to be the thinnest and the plug body part 31 is changed to an angle greater than a limit angle at which elastic force is maximized for opening and closing. The angular section expands or closes by inertia even if the user does not apply force to further improve the user's feeling.

In addition, the incision line 37 is opened when the plug is opened to increase the connection length between the plug body 31 and the fixing ring 33 so that the plug body can be opened in a state connected to the fixing ring (see Fig. 18). ).

In one embodiment according to the present invention, the fixing ring 33 has a plurality of support wings 34 are formed on the inner circumferential surface, the support wings 34 and the container body 10 to be in contact with the container body 10 at a point It is preferable that the side 341 abuts in a straight line (refer FIG. 14, 17).

In this way, the side 341 in contact with the main body in the support wing 34 is formed in a straight line and in contact with the container main body to form a triangular support structure between the container main body 10 and the support wing so that the support wing 34 is a container. Maintain elasticity to push towards the body.

In one embodiment according to the present invention, the fixing ring 33 is preferably formed with a step larger than the inner diameter of the stopper body portion 31 (see Fig. 16).

In this way, the inner diameter (33d) of the fixing ring 33 is formed larger than the inner diameter 31 of the stopper body portion 31 so that the stopper rotation is made smoothly when opening and closing, the idling is prevented by the support wing (34). .

In addition, the fixing ring 33 is a reinforcement bar 331 protruding in the region where the hinge portion 35 is formed, the reinforcement bar 331 is a bent portion corresponding to the outer periphery of the stopper body portion 31 ( It is preferred that 3312 be indented (see FIG. 13).

The reinforcing bar 331 formed on the fixing ring 33 strengthens the hinge portion 35 of the fixing ring and is formed to bend, thereby increasing the support force and preventing the plug body 31 from interfering with the opening.

The shape of the hinge part 35 and the groove (a) according to the present invention are variously formed.

As shown in FIG. 21 to FIG. 28, the hinge part 35 is an outer connection part which is formed to face the center connection part and both sides of the center connection part, and is formed to face each other, and the center connection part and the outer part. Either one of the connecting portion is a folded connector (X) and the other is preferably formed with a pull (Y) to maintain the set opening angle between the stopper body portion and the fixing ring when opening the plug.

The foldable connector (X) is formed in a form that is folded as the name accordingly protrudes to the outside and the groove (a) is deeply formed, the connection function between the stopper body portion 31 and the fixing ring 33 In addition to assisting the pull (Y).

On the other hand, the puller (Y) has an elasticity to pull the opening between the stopper body portion 31 and the fixing ring 33 to prevent the gap between the set angle and more than the set angle.

As an embodiment according to the present invention, as shown in Figure 21 and 22, the hinge portion (35a) is the center connecting portion 351 is a folded connector (X) made of a groove (a) is formed horizontally As the outer connecting portion 352 moves away from the center connecting portion 351 to the outside, the width between the upper and lower sides is increased and is formed of a puller Y formed in a convex curved shape to the outside.

The hinge portion (35a) is the center connector 351 is a folding connector (X) to maintain only the connection state between the plug body portion 31 and the fixing ring 33, the outer connector 352 of both sides pulled It becomes a ruler (Y) and acts as a pull elasticity that maintains the opening angle at both sides when opening so that the set opening angle is maintained so that the plug body is not sag.

In addition, the outer connecting portion 352 formed by the puller (Y) is gradually formed to be convexly curved outwards as the width between the upper and lower, and the convex apex portion is formed to the minimum thickness, thereby closing the plug body portion 31 If the angle is changed above the limit angle at which the elastic force is maximized, the rest of the angle section is operated without the user applying the force, thereby improving the usability.

In one embodiment according to the present invention, the hinge portion 35b, as shown in Figures 23 and 24, the central connection portion 353 is formed of a pull (Y), the outer connection portion 354 is a section It is formed of a patch connector (X).

As the outer connecting portion 354 moves away from the center connecting portion 353, the outer projecting portion 354 increases in size.

The hinge portion (35b) is the center connecting portion 353 to the pull (Y) to generate a pull elasticity, the outer connecting portion 354 is made of a folded connector (X) to assist the pull on both sides.

As one embodiment according to the present invention, the hinge portion 35c is shown in Figures 25 and 28, the center connecting portion 355 is a groove (a) is formed in a '∠' shape or '(') in cross-section Pulling (Y), it is preferable that the outer connecting portion 356 is formed of a folded connector (X).

The hinge portion 35c is characterized in that the center connecting portion 355 is formed to protrude in the form of bending or bending outward as the pull (Y), the bent portion or the curved portion is opened in the opening operation and then returned to the original angle , The pulling force is generated by the elastic force to maintain the return state.

 And the pull center connection portion 355 is formed in a bent shape, the bent portion is located below as shown in Figs. 25 and 26 or located in the top as shown in Figure 27, the bending corner may be rounded have.

As described above, the packaging container stopper according to the present invention is provided with a hinge for forming an opening groove at the same time as the screw coupling stopper to indicate the opening of the stopper to indicate the opening of the stopper and connect the stopper main body and the fixing ring It is made stable, and maintains the set opening angle at opening, there is no sag or shaking of the plug body, and the opening and closing operation is made elastic so that the usability is remarkably improved.

In addition, the packaging container stopper 30 is formed in the hinge portion is formed of a screw coupling type having a bridge indicating whether the opening (a) of a variety of configurations are formed and unlike the one-touch stopper (see Fig. 3) is opened. It can be realized by a plug injection molding apparatus configured to be mounted on the slider.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

30: stopper 31: stopper main body
311: thread portion 33: retaining ring 35: hinge portion
37: Incision X: Foldable Connector Y: Puller
39: bridge 200: injection molding apparatus of the present invention
230: upper plate 231: upper part 233,234: slider operating pin
235: wedge 241,243: outer slider 250: core unit
251: main body 251a: upper bundle 251b: lower bundle
2511: pocket 2516: connecting thread 2517: coil spring
253: inner slider 2531: insertion portion 2533: undercut portion
2536: support portion 2537: wedge hole 255: elastic member
260: stripper 270: lower plate 271: wedge fixing groove

Claims (14)

delete delete delete delete Locking ring 33 to prevent the departure from the container body 10 and the idling prevention, opening and closing the container body 10, the stopper body portion 31 is formed with a screw portion 311 on the inner circumferential surface. A hinge portion 35 connecting the fixing ring 33 and the stopper body part 31 and a plurality of bridges 39 formed between the stopper body part 31 and the fixing ring 33 and cut when the stopper is opened. Consisting of,
The fixing ring 33 is formed with a cutting line 37 for extending the connection length to the stopper body portion 31 in the set section around the fixing ring 33 around the hinge portion 35,
The hinge portion 35 is a groove body (a) is formed by the inner slider 153 of the plug injection molding apparatus into the plug body portion 31 and the fixing ring 33 is the plug body portion 31 and the fixed ring The packaging container stopper characterized in that the (33) and the step formed. The method according to claim 5,
The hinge portion 35 is an arc-shaped curved portion (c1) in which the groove (a) is close to the extension line of the stopper body portion and the fixed ring (b) of the stopper body portion 31 and the fixed ring 33, respectively ( c2) and a straight portion (d) connecting both ends of the arc-shaped curved portions (c1) (c2)

'Is formed in the shape, the straight portion (d) is a packaging container closure, characterized in that the cut. The method of claim 6,
The hinge portion 35 is formed to be convexly curved outward as the width between the upper and lower sides increases, and toward the convex apex f from a point e connected to the stopper body portion 31 and the fixing ring 33. A packaging container closure, characterized in that the thickness becomes thinner and the convex apex is formed to a minimum thickness. The method according to claim 5,
The fixing ring 33 has a plurality of support wings 34 are formed on the inner circumferential surface, the support wing 34 is formed in a straight line side 341 in contact with the container body so as to contact the container body 10 at a point. Packaging container closure, characterized in that. The method according to claim 5 or 8,
The fixing ring 33 is a packaging container closure, characterized in that the inner diameter (33d) is formed larger than the inner diameter (31d) of the stopper body portion (31). The method according to claim 5,
The fixing ring 33 has a reinforcement bar 331 protruding in the region where the hinge portion 35 is formed,
The reinforcement bar 331 is a packaging container stopper, characterized in that the bent portion (3312) corresponding to the outer periphery of the stopper body portion 31 is formed in the recess. The method according to claim 5,
The hinge portion 35 is a center connecting portion and an outer connecting portion spaced apart from both sides of the center connecting portion is formed, either one of the center connecting portion and the outer connecting portion is a folded connector (X) and the rest of the plug body when opening Packaging container closure, characterized in that formed by a pull (Y) to maintain the set opening angle between the portion and the fixed ring. The method of claim 11,
The hinge portion (35a) is a center connector 351 is made of a folded connector (X), the groove (a) is formed in a horizontal form, the outer connector 352 is far from the center connector 351 to the outside According to the packaging container cap characterized in that the width between the upper and lower sides is formed of a puller (Y) is formed in a convex curved shape to the outside. The method of claim 11,
The hinge portion (35b) is a packaging container closure, characterized in that the center connector (353) is formed of a pull (Y), the outer connector 354 is formed of a folded connector (X). The method of claim 11,
The hinge portion (35c) is the center connecting portion (355) is a pull (Y) is formed in the groove (a) in the cross-sectional shape '∠' or '('), the outer connecting portion 356 is a folding connector (X) Packaging container closure, characterized in that formed by).

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