WO2016182305A1

WO2016182305A1 - Container lid having function for preventing loss and free rotation thereof

Info

Publication number: WO2016182305A1
Application number: PCT/KR2016/004860
Authority: WO
Inventors: 백영자
Original assignee: 성보연
Priority date: 2015-05-11
Filing date: 2016-05-10
Publication date: 2016-11-17

Abstract

The present invention relates to a container lid having a function for preventing the loss and free rotation thereof, the container lid enabling the checking of whether the container has been opened, and enabling the prevention of the lid from separating and the hanging lid from freely rotating when the beverage container is opened, the container lid having a function for preventing the loss and free rotation thereof comprising: a lid main body which, by being screw-coupled to the mouth of the container, opens and closes the opening of the mouth; and an indication ring which is connected with the lower part of the lid main body by a plurality of bridges and a hinge part on one side thereof, and which has cutting slits on the lower side of the hinge part, wherein the indication ring has a resilient part formed thereon on which middle parts of some intervals on the circumference are continued and are curved so as to have shapes of being concavely bent to the inside, and the inside end surface of a curved part which has an inwardly protruding shape flexibly adheres to a corresponding side wall of the mouth, and the outer lateral surface of the curved part has a folded form so as to have both sides face each other with respect to the inside end surface, and the curved part has the folded shape thereof flexibly widened in response to external force.

Description

Container stopper with loss and free rotation prevention

The present invention relates to a container stopper having a loss and free rotation prevention function, specifically to ensure whether the opening of the container while preventing the release of the stopper when opening the beverage container and to prevent the free rotation of the hanging stopper And it relates to a container cap having a free rotation prevention function.

In general, containers containing liquid materials such as food, beverages, oils, paints, and chemicals, including bottled water, form spouts to allow liquid substances to enter and exit.

In addition, the spout is provided with a stopper for opening and closing the opening of the spout in order to restrict the entrance of the liquid material.

The general coupling structure of the container spout and the container cap forms a male thread (M / S) on the outer circumferential surface (E / S) of the protruding spout, and correspondingly a female thread (F / S) on the inner circumferential surface (I / S) of the cap that covers the spout. ) To form a screw engagement or disengagement relationship with each other.

In recent years, the container closure has been in contact with the spout of the container even after opening the spout of the container in order to eliminate the possibility of contamination and loss from the surroundings when separated from the container.

For example, Republic of Korea Patent Publication No. 10-1325850 (packaging container closure: hereinafter, 'prior art 1') and Republic of Korea Patent Publication No. 10-1038894 (packaging container closure: hereinafter, 'prior art 2 ').

Container stopper 10 according to the prior art 1, 2, as shown in Figures 1 and 2, the stopper body 16 and the stopper body including the ceiling portion 12 and the screw side wall portion 14 is cylindrical The display ring 18 spaced apart from the lower portion 16 is in a state in which the plurality of bridges 20 in the radial arrangement and the hinge portion 22 on one side are integrally connected.

In addition, in the middle portion of the display ring 18 in the lower portion of the hinge portion 22, the slits 24 are formed in the horizontal section, and the anti-rotation vanes 30 are formed around the inner wall under the slits 24. ) To protrude.

When opening the spout N of the container B by rotating the stopper body 16 from this, the display ring 18 does not raise and the bridge 20 is broken so that it can confirm that there was opening.

At this time, the incision slit 24 is opened when the stopper body 16 is lifted from the spout N of the container B so that the display ring 18 and the stopper body 16 are connected through the hinge part 22. Keep it.

In addition, the prior art 1, 2 is a cut portion 26 of the shape cut to reach the stopper body 16 and the display ring 18 on both sides of the hinge portion 22, the middle portion of the hinge portion 22 in the vertical direction According to the present invention, a container stopper having a step portion 28 formed in the plug body 16 and the display ring 18 from the inner side toward the outer side in thickness is proposed.

However, according to the prior art container closure according to the prior art 1, 2, the transverse both sides of the step portion 28 of the hinge portion 22 connecting the cap body 16 and the display ring 18 is raised to the outside. have.

This stepped portion 28 not only causes inconvenience, such as a hang when the user grasps the hand, but also when the container stopper 10 is fastened with a strong force or the contents between them are hard, Attempting to open by force may risk injury to the user's hand by the raised stepped portion 28.

On the other hand, in the prior arts 1 and 2, the container stopper 10 has a shape having a different diameter in the vertical direction.

Particularly, the portion under the screw side wall portion 14 forms a tapered shape in which at least one end is formed and the inner and outer diameters are gradually expanded to the lower end portion of the display ring 18, and as a whole, the upper portion is lower than the lower portion. It has a shape of relatively narrow upper and lower light beams.

The reason why the container cap 10 forms the structure of upper and lower light in this way is that the locking step C lower than the thread protrusion length d of the male screw M / S formed in the spout N of the container B. ) Is more protruded by the additional protrusion length d '.

Here, the reason why the protrusion (d ') is further formed below the male screw (M / S) is that when opening the spout (N) of the container (B), the opening is confirmed. In order to fix the display ring 18 more firmly so that the bridge 20 can be broken.

In addition, the container stopper 10 is another reason for forming the structure of the upper and lower light, as shown in Figure 3b, the anti-rotation wing 30 is prevented from rotating in order to elastically contact the outer peripheral surface of the spout (N) in a curved shape This is because the length of the wing 30 should be formed more than the interval from the outer edge of the locking step C to the outer peripheral surface of the snout N.

Another reason for the container stopper 10 to form the structure of the upper and lower light is that the container stopper 10 is engaged with the inner wall of the display ring 18 when forcibly engaging the container stopper 10 with respect to the spout N of the container B. This is because it requires the free space (D ') that can be bent elastically within the range that the anti-rotation blade 30 is not damaged between the edge of the jaw (C).

As discussed above, summarizing the problem of the container cap 10 in which the diameter of the lower part is unnecessarily enlarged in the upper and lower light structure,

First, the unnecessary enlargement of the inner and outer diameters of the lower portion of the container cap 10 is a waste of material.

Secondly, the lower portion of the lower portion having a larger diameter than that of the plug body 16 has a great moment of action, and there is a risk of damage or breakage due to its own weight or external force during transportation or loading and storage.

Third, when the shape is distorted by the external force, the spout (N) of the container (B) fixed with a die in the process of being supplied to the production line through a feeder (not shown) that is a container plug 10 supply device ) Results in poor handling, such as misalignment (poor centering) corresponding to the holder H for inserting the container cap 10 into the container H, which hinders normal operation of the production.

Fourth, the unnecessary enlargement of the inner and outer diameters of the container cap 10 has a wide interval in the feeder, and thus requires a delay in supply speed and an enlargement of the equipment scale accordingly.

Fifth, the anti-rotation blade 30 for expanding the inner and outer diameters of the lower portion of the container cap 10, as shown in the prior art 2 and Figures 4a to 5, the core (C / B, C / B ') is formed into a detachable double structure and undercut in the process of forcible extraction, making it difficult to extract, which causes problems such as complexity of mold, deterioration of mold life and delay in production speed. ,

Sixth, the anti-rotation wing 30 is extracted from the mold, there is a risk of damage or breakage by the extraction process,

Seventh, the anti-rotation wing 30, in the extraction process, to maintain the shape bent in the downward direction, when the degree of bending is more than about, the lower end of the spout (N) in the assembly process for the container (B) Alternatively, the problem caused by the damage to the side wall and the external thread (M / S), which is damaged or broken again, resulting in a poor coupling, and the method implemented to prevent this, the operator with respect to the container stopper 10 extracted from the mold ( There is a hassle that has to be delivered after first bending 30) toward the upper stopper body 16.

On the other hand, in the prior art 1, 2, the structural feature of the container stopper 10, in the state coupled with the spout (N) of the container (B), the lower end of the display ring 18 and the spout (N) of the container (B) A gap is formed between the supporting jaws S / C formed in the upper and lower directions.

The clearance between the lower end of the display ring 18 and the support jaw S / C forces the container stopper 10 to the spout N of the container B fixed to the die. In this case, the allowable tolerance (D-D ': L / N) is provided so that the end portion of the anti-rotation blade 30 sufficiently passes the locking jaw C.

This clearance tolerance (L / N) can be present in a crooked state whether the display ring 18 with respect to the spout (N) of the container (B) after opening or closing the stopper body 16 is in a crooked state aesthetically neat shape Can't keep up

Meanwhile, the general container B and the container cap 10 including the prior arts 1 and 2 undergo a recycling process after the exhaustion of the liquid material together with the container B.

At this time, the container (B) is generally made of a polyethylene (phthalate phthalate) (PET) material, and the container stopper 10 is usually made of a polypropylene (PP) or PE (polyethylene) material.

As such, the container B and the container cap N may be made of different materials, and in order to increase the above recycling efficiency, it is preferable to be able to classify different materials into respective materials.

However, in the general container stopper 10, the display ring 18 portion is completely separated from the stopper body 16 portion and can be recycled together with the container (B), wherein the material to be recycled is changed in physical properties there is a problem.

From this, in order to increase the recycling efficiency, a user or a separate worker needs to separate the display ring 18 from the container B.

Moreover, in the case of the prior arts 1 and 2, the entire container cap 10 including the indicator ring 18 is suspended from the container B with respect to the container B, which is also a knife or a nipper. By cutting the display ring 18 using a separate operation is required to separate the container cap 10 from the container (B).

An object of the present invention is first, to prevent the formation of a protrusion that damages the user's hand on the part held by the user, to prevent the inconvenience of use and the possibility of damage to the user's hand,

Secondly, to reduce the size of the material by reducing the size, reducing the possibility of damage to the product, improve productivity, and reduce the defect rate, including the manufacture of the container cap and the combination of the container,

Third, by simplifying the structure to reduce the manufacturing cost and additional costs of the mold and to extend the life of the mold,

Fourth, the display ring to be kept in a clean form with respect to the weight of the container (B),

Fifth, the purpose is to increase the recycling efficiency by allowing the spout of the container to be separated from the cap body together with the stopper body.

Characteristic configuration of the container stopper having a loss and free rotation prevention function according to an embodiment of the present invention for achieving the above object, the plug body for opening and closing the opening of the spout with the spout and screw fastening of the container, the plug body In a container stopper having a loss and free rotation prevention function comprising a display ring having a hinge portion on one side and a plurality of bridges at a lower portion of the hinge portion, and a cutting slit under the hinge portion, wherein the display ring has at least one of a circumference. In some sections, the thickness is continuously formed inwards and outwards to form one or more carburizing portions that are bent inwardly to form a protruding shape, wherein the end portions protruding inwardly are formed on the sidewalls of the corresponding spouts. It forms a close contact elastically in close contact, forming a folded shape facing each other centering on the contact surface of the bullet portion Both sides are made to elastically open in response to external forces.

In addition, the upper portion of the elastic portion is the first inclined surface downward from the outer side to the upper end of the contact surface inside In addition, it is preferable that the lower portion of the ballistic portion has an upward second inclined surface from the outer side to the inner contact surface lower end.

In addition, the vertical width direction interval from the upper end of the first inclined surface to the lower end of the display ring is 0.5 to 1.5 mm wider than the interval from the bottom of the locking jaw formed in the spout of the container to the upper surface of the support jaw. It is preferable that the height from the upper end to the lower end of the first inclined surface is in the range of 0.7 ~ 2mm.

In addition, the bullet portion is formed in a plurality of sections along the circumference of the display ring, symmetrical arrangement with respect to the center of the display ring of each section, or to be arranged at equal intervals mutually along the circumference of the display ring. Do.

On the other hand, the characteristic configuration of the container stopper having a loss and free rotation prevention function according to another embodiment of the present invention for achieving the above object, the plug body for opening and closing the opening of the spout with the spout and screw fastening of the container, and In the lower part of the stopper main body is connected to the hinge portion of one side and a plurality of bridges, and the container ring having a loss and free rotation prevention function comprising a display ring having an incision slit under the hinge portion, the display ring The inner diameter projecting along the inner circumference of the annular projection is 0.3 ~ 0.6mm or less than the outer diameter of the locking jaw formed in the spout, and the bottom surface of the annular projection to have a tapered surface to gradually expand the inner diameter at its inner end, The width direction interval from the upper surface of the annular projection to the lower end of the display ring is the interval between the upper surface of the support jaw at the bottom of the locking jaw formed in the spout Stand consists of a wider, formed up to 0.3 ~ 0.6㎜ range.

Further, around the inner wall of the display ring on the upper part of the annular projection, in a state in which the upper surface of the annular projection is in close contact with the bottom surface of the locking jaw, a friction protrusion contacting the outer end of the corresponding locking jaw is formed along the circumference thereof. One or more formed, the protruding length of the friction protrusion on the inner wall of the display ring is preferably formed to be less than the protruding length of the annular projection on the inner wall of the display ring.

On the other hand, in the embodiment and the other embodiment, the display ring is formed at least one cut groove having a depth from the bottom to the top at intervals along the circumference of the bottom portion, the lower end of the display portion corresponding to the depth of the cut groove The portion may be formed by forming a skirt portion having a shape that is gradually thinner in the lower direction and spread outward.

In addition, the hinge portion is a portion in which the plug body is bent based on the display ring along an intermediate portion of the up and down direction, and gradually forms a concave shape inward from the outer sidewall surface of the plug body, so that the plug body is connected to the display ring. It can be made by forming a bent portion to induce a bend as a reference.

The hinge portion has a rod shape extending vertically to the horizontal center portion of the bent portion, and the upper portion centered on the bent portion is in a state in which the hinge portion is integrally connected to the hinge portion, and both side portions and the bent portion are formed. And a flexible support piece separated by a first trim that penetrates inward and outward to a portion leading to a lower portion of the center, and the lower end portion is provided in a fastening state in which the closure body closes the container spout. The outer surface of the lower end is elastically in contact with the side wall of the container spout located at the upper portion of the bent portion through the process of elastically bending the lower end in accordance with the opening angle in the process of opening the container spout toward the lower side Support to maintain the closure of the closure body relative to the container spout This is preferred.

In addition, in the flexible support piece, the lower end portion below the bent portion is preferably formed thinner than the upper portion.

According to the present invention, as the hinge portion has a shape recessed inward from the side wall of the container stopper including the stopper body and the display ring, when the grip is to be rotated to open the spout, a safe effect is prevented by preventing the possibility of damage to the user's hands. There is.

In addition, as can be seen in the first and second embodiments of the present invention, in the natural state, the elastic portion is retracted so as to prevent free rotation, or instead of the support wing, between the locking jaw and the supporting jaw. By preventing the free rotation by the elastic restoring force of the container has the effect of reducing the overall size according to the outer diameter of the container stopper, thereby reducing the material cost, productivity and defect rate.

In addition, in each embodiment of the present invention, instead of the hinge portion having a depth from the inside to the outside, a sliding core for forming an outer bridge can be used together, and in the first embodiment, through the elastic deformation relationship of the ballistic portion. The relationship between easy extraction and short formation of the protruding length of the annular protrusion has the effect of simplifying the mold, thereby reducing the manufacturing cost and extending the life of the mold.

In addition, in the case of the first embodiment of the present invention, as the complete separation is possible from the spout of the container to the display ring through the pleats formed in the display ring, the container and the container cap may be easily collected and separated from different materials. It is effective to increase the recycling rate.

1 and 2 is a perspective view showing the configuration of a container cap having a loss and free rotation prevention function according to each embodiment of the prior art.

3A to 3B are cross-sectional views for explaining the coupling process of the container stopper according to the prior art for the container spout in the production process and the conditions of the configuration thereof.

4A to 5 are cross-sectional views for explaining the extraction relationship between the mold and the container cap from the mold for producing the container cap of the prior art.

Figure 6 is a partially enlarged cross-sectional perspective view showing a container cap having a loss and free rotation prevention function according to an embodiment of the present invention.

FIG. 7 is a partially cutaway perspective view for explaining the configuration of the bullet portion and the hinge portion of FIG. 6.

8A and 8B are schematic diagrams of a flat state for explaining the operation relationship of the bullet section of FIG.

9 is a partial cross-sectional view showing the state of coupling of the container stopper including the bullet portion with respect to the spout of the container.

FIG. 10 is a planar state diagram illustrating a modified example of the bullet section illustrated in FIG. 6.

11 is a cross-sectional view showing the configuration of a container cap having a loss and free rotation prevention function according to another embodiment of the present invention.

The best form of the container stopper having a loss and free rotation function of the present inventors is a plug body for opening and closing the opening of the spout by the spout of the container and screwing, and one hinge portion and a plurality of bridges on the lower part of the plug body. In the container stopper having a loss and free rotation prevention function comprising a display ring having a cutting slit under the hinge portion, the display ring is continuously bent inward and outward in thickness at least a portion of the circumference And one or more carburizing portions forming a protruding shape by bending inwardly of the circumference, and the protruding end of the carburizing portion forms an intimate surface elastically in close contact with the sidewall of the corresponding spout. The two side parts forming the folded shape facing each other centering on the close contact surface of the contact surface is elastically opened in response to external force It consists of a configuration.

The terms or words used in the specification and claims of the present invention are not to be construed as being limited to the ordinary or dictionary meanings, but the inventors may properly interpret the concept of terms in order to explain their own invention in the best way. It can be defined as 'definable' and should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

In addition, since the structure shown in the Example and drawing which were described in the specification of this invention is only a preferable embodiment of this invention, and does not represent all the technical idea of this invention, at the time of filing of this invention these are shown. It should be understood that various equivalents and modifications that can be substituted can be attributed to the claims of the present invention.

In the description of the present invention, the container on which the installation is made is based on a state in which the container is placed upright, that is, the spout of the container is on the upper side, and the expression inside is in the center direction or in the direction of the inside of the container at the corresponding height. It refers to the site, the outer side will be described as referring to the opposite direction of the inner side or the site in the direction.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Container stopper 40 having a loss and free rotation prevention function according to the present invention, as shown in Figures 6 to 11, the spout (N) and screwing the spout (N) of the container (B) as in the prior art The plug body 42 for opening and closing the opening of the) and the lower end of the plug body 42 is composed of a configuration including a hinge portion 44 and the display ring 48 connected by a plurality of bridges 46.

In addition, the above-described display ring 48 includes the lower portion of the hinge portion 44 to form the incision slit 50.

Herein, the features of each embodiment of the present invention will be described in more detail.

Example 1

The container stopper 40a having a loss and free rotation prevention function according to an embodiment of the present invention is made of a synthetic resin integrally by injection molding, and as shown in FIGS. 6 to 10, the display ring 48a. In the formation of, the thickness of the plane is firstly curved inwardly at least in a part of the circumference formed by the display ring 48a, and the display ring 48a on the outside is successively continued at the end of the previously set position by bending. The first and second curved portions are bent secondly to lead to the circumferential position, and thus, at least one bullet portion 52 is formed to form a shape that protrudes specifically around the display ring 48a.

More specifically with respect to the shape of the bullet portion 52, as shown in Figure 7, a constant thickness on the plane forms the circumference of the arc shape, the thickness of the circumference at the position already set in the circumference is primarily After bending in the inward direction, it forms a shape continuously bent in the circumferential direction which is again second outward at an inner position that is in contact with the outer circumferential surface E / S of the spout N of the container B which has already been set.

Accordingly, the shot portion 52 forms a concave curved shape inward instead of the circumferential shape of the display ring 48 in a portion of the circumference of the display ring 48 that has already been set.

That is, both ends in the longitudinal direction of the bullet portion 52 are connected to both ends of a predetermined section of the circumference of the display ring 48, and the intermediate portion of the bullet portion 52 is inwardly displayed. It is curved inwardly to form a protruding shape.

In addition, the site | part corresponding to the outer peripheral surface E / S of the spout N of the bullet part 52 is the side wall of the spout N previously defined in the state which injected-molded (the state which excluded the external force), ie, the outer peripheral surface E / S. S) is located further inside.

Accordingly, the end portion projecting inwardly of the shot portion 52 forms a close contact surface 54 elastically in close contact with the side wall of the corresponding spout N.

In addition, a portion of the elastic portion 52 that forms a shape in which the two sides are folded to face each other at a mutually spaced distance, as shown in FIGS. 8A and 8B, is elastically opened in response to external force. I'm trying to lose.

Here, the bullet portion 52 may be formed in a plurality of sections, and in this case, it may be arranged in pairs facing each other at mutually symmetrical positions with respect to the inner center of the container stopper 40a, or the container stopper 40a. It may be arranged at an even angle along the circumference of the display ring 48 around the inner center of the.

In addition, when the inner diameter of the contact surface 54 of the bullet portion 52 according to the arrangement of the bullet portion 52 described above is not mounted on the spout N of the container B after the injection molding, It is preferable to form smaller than the diameter of the outer peripheral surface E / S of the corresponding spout N.

Accordingly, in the state where the container stopper 40a is attached to the spout N of the container B, the contact surface 54 of the bullet portion 52 is formed on the outer peripheral surface E / S of the spout N at the corresponding position. The elastic close contact provides a friction force that prevents the rotation of the container cap 40a.

In this state in which the container stopper 40a is attached to the spout N of the container B, both portions around the contact surface 54 of the bullet portion 52 are more than the molded state produced by injection molding. It would be natural to be in an open state.

In addition, the upper portion located inside the circumference of the display ring 48 of the shot portion 52 has the first inclined surface 56 downward from the outer side to the upper side of the contact surface 54. In addition, it is preferable that the lower portion of the bullet portion 52 positioned inside the circumference of the display ring 48 has the second inclined surface 58 upward from the outer side to the lower side of the contact surface 54.

Here, the above-described first inclined surface 56 is intended to facilitate extraction from the corresponding core (not shown) portion in the mold when the shot portion 52 is injection molded, and more specifically, undercut (protruded inwardly). The upper portion of the bullet portion 52 serving as a portion) is combed along the inclination of the first inclined surface 56 to be out of the position of the core.

Further, when the second inclined surface 58 is intended to engage the container plug 40a with the spout N of the container B, the portion of the spout N of the container B is the inner side of the container stopper 40a. In order to be able to fit smoothly.

In addition, the vertical gap in the vertical direction from the upper end of the first inclined surface 56 to the lower end of the display ring 48 of the shot portion 52 is defined at the bottom of the locking jaw C formed in the spout N of the container B. It is preferable to form a wide in the range of 0.5 ~ 1.5mm compared to the interval to the upper surface of the support jaw (S / C), the height from the upper position of the first inclined surface 56 to the lower position (the upper end of the contact surface 54) It is preferable to be in the range of 0.7 to 2 mm so that the bullet portion 52 easily passes through the locking jaw C when the container stopper 40a is fastened to the spout N of the container B.

At this time, the display ring 48 is formed at least one incision groove 60 having a depth from the bottom to the upper side at intervals along the bottom portion circumference, the depth of the incision groove 60 in the lower portion of the display ring 48 It is preferable to form a skirt portion 62 having a shape that is gradually thinned outward in a downward direction in the thickness leading to the lower portion.

In addition, a portion of the display ring 48 between the lower side of the hinge portion 44 and the incision slit 50 may further include a gushing portion 64 to compensate for the possibility of breaking due to the rotation of the hinge portion 44. It is preferable to.

As described above, the container stopper 40a according to an embodiment of the present invention, in the extraction process of the manufacturing process, as shown in Figure 9, including the drainage drainage (θ) and the carbuncle portion 52 The extraction is performed while the display ring 48 naturally opens by the first inclined surface 56, thereby simplifying the mold.

In addition, in the process of engaging with the spout N of the container B, as shown in Fig. 9, as the second inclined surface 58 of the bullet portion 52 is positioned upward, the narrower shape is achieved. Guidance is made corresponding to the upper end of the spout (N) to prevent unnecessary manual operation of the operator, due to the opening of the bullet portion 52 can lower the pressure until its coupling, container closure except the drain pipe (θ) By forming the outer wall of the side wall of 40a into a cylindrical shape excluding the additional expansion part, it is possible to expect the effect of reducing the material cost according to the diameter reduction and improving the defect rate and production speed in the production process including the above bonding process.

Then, the upper and lower width intervals of the display ring 48, that is, the interval from the upper end of the first inclined surface 56 of the bullet portion 52 to the lower end of the display ring 48 including the skirt portion 62 is caught. ) Is formed wider than the gap between the support jaw (S / C) and the locking jaw (C) and the support jaw together with the pressure due to the close contact with the bullet portion 52 to the outer peripheral surface (E / S) of the spout (N) As the pressure in the up and down direction between (S / C) exists, there is an effect that free rotation of the container plug 40a suspended on the hinge portion 44 is prevented.

In addition, the vertical width of the display ring 48 maintains a horizontal state corresponding to the spout N of the container B as a stable support is provided between the locking jaw C and the support jaw S / C. By forming a neat shape in appearance.

Example 2

On the other hand, the container stopper 40b having a loss and free rotation prevention function according to the second embodiment of the present invention, as shown in Figure 11, the display ring 80 has an inner diameter protruding along the inner circumference of the spout Form an annular projection (82) is 0.3 ~ 0.6 mm or less than the outer diameter of the formed locking projection (C), the bottom surface of the annular projection 82 to form a tapered surface that gradually expands the inner diameter at the inner end, annular projection ( 82 in the width direction from the upper surface of the upper surface of the display ring 80 to the lower end of the display ring 80 is 0.3 to 0.6 mm than the interval between the upper surface of the supporting jaw S / C at the bottom of the locking jaw C formed in the snout N. Wider to the extent formed.

In addition, around the inner wall of the display ring 80 on the upper part of the annular projection 82, the outer end of the corresponding engaging jaw C in a state where the upper surface of the annular projection 82 is in close contact with the bottom of the engaging jaw C. And at least one friction protrusion 84 in contact with the circumference thereof, and the protruding length of the friction protrusion 84 at the inner wall of the display ring 80 is an annular protrusion 82 at the inner wall of the display ring 80. It is preferable to form less than the protruding length.

And, the display ring is formed at least one incision groove having a depth from the bottom to the upper side at intervals along the circumference of the lower portion, the lower portion of the display portion corresponding to the depth of the incision groove is gradually thinner in the lower direction and the outer side It may be formed by forming a skirt portion 88 of the shape that is formed as.

At this time, the skirt portion 88 may be divided into the lower portion of the display ring 80 by the cutting groove 86 in the above-described embodiment of the present invention.

Such a skirt portion 88 is formed as described above in the skirt portion 62 according to an embodiment of the present invention, the bottom of the locking jaw (C) and the support jaw (S / C) of the lower display ring 80 A pressure is added together with the annular projection 82 with respect to the gap between the upper surface and the free rotation of the container plug 40b with respect to the spout N by the force.

On the other hand, in the embodiment different from the above-described embodiment of the present invention, the hinge portion 44 is a portion where the stopper body 42 is bent relative to the display rings (48, 80) along the middle portion of the vertical direction And the plug body 42 forms a bent portion which induces a bend with respect to the display rings 48 and 80 by gradually forming a concave shape inward from the outer sidewall surface of the plug body 42.

In addition, the hinge portion 44 has a rod shape extending vertically to the horizontal center portion of the bent portion, and the upper portion centered on the bent portion is in a state in which the hinge portion 44 is integrally connected to the hinge portion 44. A flexible support piece 68 separated by the first trimming part 70 penetrating inward and outward is formed further to the site | part which continues to the lower part centering on a site | part and a bending part.

The flexible support piece 68 has a lower end facing downward in a fastening state in which the stopper body 42 closes the spout N of the container B, and the stopper body 42 has a spout N of the container B. In the process of opening the lower end is elastically bent in accordance with the opening angle of the container (B) located in the upper portion of the bent portion (N) side, that is, the outer surface of the lower end on the outer peripheral surface (E / S) elastically By being supported by being in contact with each other, the opening of the plug body 42 with respect to the spout N of the container B is maintained.

In addition, the flexible support piece 68 is preferably such that the lower end portion under the bent portion is gradually thinner than the upper portion.

Claims

A plug body for opening and closing the opening of the spout by the spout of the container and screwing, and a display ring having a hinge portion on one side and a plurality of bridges at the lower portion of the cap body, and having a cutting slit under the hinge portion. In the container stopper having a loss and free rotation prevention function,

The display ring is formed by forming at least one bullet portion that forms a shape in which at least a portion of the circumference of the inner and outer thickness is bent continuously to the inside of the circumference and protrudes,

An end projecting inwardly of the bullet portion forms an intimate surface elastically in close contact with the sidewall of the corresponding spout,

The container cap having a loss and free rotation preventing function, characterized in that both sides of the bullet portion forming the mutually opposite shape centering on the contact surface centered elastically in response to external force.
The method of claim 1,

The upper portion of the bullet portion has a first inclined surface downward from the outer side to the upper end of the contact surface And, the lower portion of the ballistic portion, container closure having a loss and free rotation prevention function, characterized in that the second inclined surface from the outer side to the inner side of the lower contact surface.
The method of claim 2,

The vertical width direction interval from the upper end of the first inclined plane to the lower end of the display ring is wider than the distance from the bottom of the locking jaw formed in the spout of the container to the upper surface of the support jaw. And, the height from the top to the bottom of the first inclined surface of the container stopper having a function of preventing loss and free rotation, characterized in that in the range of 0.7 ~ 2mm.
The method of claim 1,

The bullet portion is formed in a plurality of sections along the circumference of the display ring, symmetrical arrangement with respect to the center of the display ring of each section or the mutually spaced arrangement is formed along the circumference of the display ring And a container stopper having a free rotation prevention function.
A stopper body for opening and closing the opening of the spout by the spout of the container and screwing, and a hinge ring of one side and a plurality of bridges are formed in the lower portion of the stopper body, the display ring having a cutting slit under the hinge portion In the container stopper having a lost and free rotation prevention function,

The display ring has an annular projection having an inner diameter protruding along the inner surface of the annular projection of 0.3 to 0.6 mm or less than the outer diameter of the locking jaw formed in the spout, and the bottom surface of the annular projection has a tapered surface whose inner diameter gradually expands from the inner end thereof. The width direction interval from the upper surface of the annular projection to the lower end of the display ring is formed in a wider range from 0.3 to 0.6 mm in the interval between the upper surface of the support jaw from the bottom of the locking jaw formed in the spout Container stopper with anti-lost and free rotation protection.
The method of claim 5,

At least one friction protrusion along the circumference of the annular projection, the upper surface of the annular projection is in close contact with the bottom surface of the locking jaw along the circumference of the display ring in the upper portion of the annular projection And a protrusion length of the friction protrusion on the inner wall of the display ring is less than a protrusion length of the annular protrusion on the inner wall of the display ring.
The method according to claim 1 or 5,

The display ring may have one or more incision grooves having a depth from a lower side to an upper side at intervals along a lower portion of the lower portion, and a lower portion of the display portion corresponding to the depth of the indentation groove is gradually thinner in the lower direction and toward the outside. A container stopper having a lossless and free-rotating function, characterized in that the skirt portion of the open shape is formed.
The method according to claim 1 or 5,

The hinge portion is a portion in which the plug body is bent relative to the display ring along an intermediate portion of the up and down direction, and gradually forms a concave shape inward from the outer sidewall surface of the plug body, so that the plug body is based on the display ring. Container stopper having a loss and free rotation prevention function characterized in that formed by forming a bent portion to induce bending.
The method of claim 8,

The hinge portion has a rod shape extending vertically to a horizontal center portion of the bent portion, and the upper portion centered on the bent portion is in a state in which the hinge portion is integrally connected to the hinge portion, and is formed around both side portions and the bent portion. It is further provided with a flexible support piece separated by a first trim part penetrating inward and outward to a portion leading to one lower part,

The flexible support piece is bent through the process of bending the lower end elastically according to the opening angle in the process of opening the container spout while the lower end is downward in the fastening state in which the cap body closes the container spout. The outer surface of the lower end portion is supported by elastic contact with the side wall of the container spout located at the upper part of the container, so that the open state of the plug body is maintained with respect to the container spout. Container stopper having a.
The method of claim 9,

The flexible support piece is a container stopper having a loss and free rotation prevention function, characterized in that the lower end portion of the bent portion is formed gradually thinner than the upper portion.