TW201704106A - A container cap with function of anti-missing and anti-idle stopper - Google Patents

Abstract

In some embodiments of the present disclosure, a cap with an anti-lost and an anti-idle-rotation function for opening and closing container with tamper evidence arrangement, includes a cap body, a tamper ring and at least one elastic section. The cap body is threadedly engageable with spout in the container to open and close thereof. The tamper ring is joined to bottom of the cap body via hinge part on one side and bridges and is formed with a slit line below hinge part. The elastic section is configured to occupy at least a circumferential part of tamper ring and have consecutively bent walls alternately extending inward and outward of tamper ring to provide inward protuberance which terminally establishes resilient abutting face that presses against corresponding side walls of spout. The resilient abutting face is central to the bent walls that serve as symmetrical folds expandable resiliently yielding to an external force.

Description

Container cap with function to prevent loss or prevent idling

The present invention relates to a container cap having a function of preventing loss or preventing idling, and more particularly, in relation to a method of confirming whether the container is unsealed or not, while opening the beverage container, preventing detachment of the container cover and preventing idling from being lost And a container lid that prevents the idling function.

A container generally used for storing liquid substances such as mineral water, beverages, oils, paints, chemicals, and the like has a bottle mouth capable of allowing liquid to enter and exit.

In order to restrict the ingress and egress of the liquid, a bottle cap for opening and closing the opening of the bottle mouth is provided at the mouth of the bottle.

Generally, the combination of the bottle opening of the container and the container cover is such that an external thread M/S is formed on the outer peripheral surface E/S of the protruding bottle opening, and correspondingly, an internal thread F is formed on the inner circumferential surface I/S of the bottle cap. /S, by combining or disengaging the screws.

The recently developed container lid remains open to the mouth of the container after opening the mouth of the container to prevent contamination of the container lid from the surrounding environment or loss after the container lid is separated from the container.

As a prior art, Korean Patent No. 10-1325850 (Packaging Container Cover, hereinafter referred to as "Prior Art 1") and Korean authorization can be cited. Patent Publication No. 10-1038894 (Packaging Container Cover, hereinafter referred to as "Prior Art 2").

According to the container cover 10 of the prior art 1 and the prior art 2, as shown in FIGS. 1 and 2, the cap body 16 and the retaining ring 18 are connected by a plurality of radially connected plurality of connecting portions 20 and one side of the hinge portion 22. In one piece, the cap body has a top portion 12 and a cylindrical screw side wall portion 14 spaced apart from the lower portion of the cap body 16.

Further, in the portion of the fixing ring 18 at the lower portion of the hinge portion 22, a slit slit 24 is formed in the lateral direction of the intermediate portion in the vertical direction, and the rotor blade 30 is formed to protrude from the inner wall of the lower surface of the slit 24.

Thus, when the cap body 16 is rotated to open the mouth N of the container B, the fixing ring 18 is raised and the connecting portion 20 is broken, and it is confirmed that the container is opened.

At this time, when the cap body 16 is lifted and lowered from the bottle neck N of the container B, the slit slit 24 is expanded, and the hinge portion 22 holds the state in which the retaining ring 18 and the cap body 16 are connected.

Prior Art 1 and Prior Art 2 propose a container lid having a cut-out portion 26 that is cut at both sides of the hinge portion 22 to a portion between the cap body 16 and the fixing ring 18; the step portion 28 The intermediate portion in the vertical direction of the hinge portion 22 is formed to be gradually thinned from the inner side of the cap body 16 and the fixing ring 18 toward the outer side.

According to the container caps of the prior art 1 and the prior art 2, the lateral side portions of the step portion 28 of the hinge portion 22 connecting the cap body 16 and the fixing ring 18 protrude outward.

The protruding step portion 28 not only causes a barrier when the user holds it by hand If it is inconvenient, and if the contents of the container cover 10 or the contents are solidified, if the product is firmly opened, the user's hand may be scratched by the protruding step portion 28.

In the prior art 1 and the prior art 2, the diameters of the container lid 10 in the up and down direction are different.

In particular, the lower portion of the screw side wall portion 14 has one or more steps, and has a tapered shape in which the inner and outer diameters are gradually increased until the lower end portion of the fixing ring 18, and the upper portion has a shape in which the upper portion is narrower than the lower portion.

Thus, the container cover 10 has a structure that is narrow and wide, because the additional protruding length d' of the lower locking projection C is more prominent than the thread protruding length d of the external thread M/S formed at the mouth N of the container B.

Here, the locking projection C is more prominently formed than the external thread M/S because the fixing ring 18 is more firmly fixed when the bottle opening N of the container B is opened, so that the connecting portion 20 for confirming the opening or not can be broken.

Further, the container cover 10 has a structure that is narrow and wide, because the length of the anti-rotation blade 30 needs to be formed as a slave card in order to elastically contact the outer peripheral surface of the bottle mouth N in a curved shape as shown in Fig. 3b. The outer edge of the projection C is above the interval between the outer circumferential surfaces of the mouth N.

Further, the container cover 10 has a structure that is narrow and wide, because the container cover 10 is reluctantly bonded to the mouth N of the container B, and a space D is required between the inner wall of the fixing ring 18 and the edge of the locking projection C. The anti-rotor 30 is elastically bent to pass through without breaking.

As described above, there is the following problem in the structure of the container cover 10 in which the diameter of the lower portion is excessively enlarged in the structure of the narrow and wide width.

First, excessively magnifying the inner and outer diameters forming the lower portion of the container lid 10 wastes material.

Second, the lower side portion having a diameter larger than the cap body 16 is subjected to a large torque. Therefore, the shape may be damaged by the damage of its own weight or external force during transportation or storage.

Third, when the shape is broken by an external force, the container cover 10 is inserted into the holder H of the bottle mouth N of the container B fixed to the mold by the supply means of the container cover 10, that is, the supply device to the production line. A problem of poor alignment (poor center) occurs, which hinders normal production work.

Fourth, the outer diameter of the container cover 10 is excessively enlarged to cause the interval occupied by the supplier to be widened. Therefore, the supply speed becomes slow, and the problem of the scale of the equipment needs to be increased.

Fifth, the anti-rotor 30 for enlarging the inner and outer diameters of the lower portion of the container cover 10, as shown in the prior art 2 and FIGS. 4a to 5, the cores C/B, C/B' of the corresponding portions in the mold are formed as The separate double structure and the formation of the undercut during the bare removal process constitute a structure that is difficult to take out, thereby not only causing the mold to become complicated, but also shortening the life of the mold and delaying the production speed.

Sixth, when the anti-rotor 30 is taken out from the mold, there is a problem of damage or breakage during the removal process.

Seventh, the anti-rotor 30 is kept in a downwardly curved shape during the removal process. When the degree of bending is more than the degree, when the lower end portion is assembled to the container B, it is caught at the upper end of the bottle mouth N or the side wall and the external thread M/S. In the event of damage or even damage, the problem of poor bonding is caused. To prevent the above problems, The container cover 10 is required for the user to perform the work of bending the anti-rotor 30 toward the upper cap body 16 once, and it is troublesome.

In the prior art 1 and the prior art 2, the structural feature of the container cap 10 is in a state of being combined with the mouth N of the container B, the lower end of the fixing ring 18 and the supporting protrusion S/C formed at the mouth N of the container B. The interval between the upper and lower directions is formed.

There is a space between the lower end of the fixing ring 18 and the support protrusion S/C, whereby when the container cover 10 is reluctantly bonded to the mouth N of the container B fixed to the mold, the end portion of the anti-rotor 30 can be formed to pass through. The locking projection C has a margin D-D': L/N.

When there is a margin L/N, and the cap body 16 opens the mouth N of the container B, the fixing ring 18 is present in a state of being distorted regardless of whether it is opened or closed, and therefore, a clean and neat appearance cannot be maintained.

The general container B including the prior art 1 and the prior art 2 and the container lid 10 are subjected to a recycling process after they have used up the liquid substance.

The container B is made of polyethylene terephthalate (PET) material, and the container lid 10 is made of polypropylene (polypropylene) or polyethylene (PE).

Thus, the container B and the container lid N are respectively made of different materials, and in order to improve the recovery efficiency, it is preferable to distinguish the materials which are different from each other.

However, the general container lid 10 needs to be subjected to a process of completely separating the fixing ring 18 from the cap body 16 and recovering it together with the container B. At this time, there is a problem that the physical properties of the recycled material change.

In order to improve recycling efficiency, users or other staff members need to The work of separating the retaining ring 18 from the container B is performed.

In particular, in the prior art 1 and the prior art 2, the container cover 10 including the fixing ring 18 is entirely hung on the container B, which requires separation of the container cover B from the container B by cutting the fixing ring 18 with a tool such as a knife or a nipper. 10 jobs.

[Prior technology] [Patent Literature]

Korean Patent No. 10-1325850 (announced on November 6, 2013).

Korean Patent No. 10-1038894 (announcement of June 2, 2011).

The present invention has been made to solve the problems of the prior art.

The present invention has been made to solve the problems of the prior art, and its purpose is as follows.

First, it is prevented that a protruding portion that damages the user's hand is formed at a portion held by the user, in order to prevent inconvenience in use and the possibility of injury of the user's hand.

Second, the size is reduced to save material costs, reduce the possibility of product breakage, improve productivity, and reduce the defect rate when manufacturing the container lid and when the container is combined with the container lid.

Third, the structure is simplified, the manufacturing cost of the mold and the incidental cost are saved, and the life of the mold is prolonged.

Fourth, the retaining ring maintains a clean and sleek shape on the mouth of the container B.

Fifth, the retaining ring and the cap body can be separated from the mouth of the container, thereby improving the recovery efficiency.

To achieve the object, a container cover having a function of preventing loss or preventing idling according to an embodiment of the present invention includes: a bottle cap body, which is coupled with a bottle mouth of a container by a screw for opening and closing an opening of the bottle mouth; The ring is connected to the lower portion of the cap body by a hinge portion on one side and a plurality of connecting portions, and has a slit on a lower side of the hinge portion; and one or more elastic portions are formed in the fixing ring, the elasticity The thickness of the portion is continuously curved toward the inner side and the outer side at at least a partial interval of the circumference, and is curved toward the inner side of the circumference to form a protruding shape, and the end portion protruding inward in the elastic portion is elastically abutted against the side wall of the corresponding bottle mouth. In the abutting surface, both side portions of the elastic portion that are folded toward each other around the abutting surface are elastically expanded corresponding to the external force.

Preferably, an upper end of the upper surface of the elastic portion from the outer side to the inner side forms a downward first inclined surface, and a lower portion of the lower portion of the elastic portion from the outer side to the inner side forms an upward second inclination surface.

Preferably, the upper and lower width direction from the upper end of the first inclined surface of the elastic portion to the lower end portion of the fixing ring is spaced from the bottom surface of the locking projection formed at the mouth of the container to the upper surface of the supporting protrusion The interval is wider from 0.5 mm to 1.5 mm, and the height from the upper end to the lower end of the first inclined surface is 0.7 mm to 2 mm.

Preferably, the elastic portion is formed in a plurality of sections along the circumference of the fixing ring, and is disposed symmetrically with respect to the center of the fixing ring of each section, or is disposed at equal intervals along the circumference of the fixing ring.

The container cover with the function of preventing loss or preventing idling of the present invention comprises: a bottle cap body, which is combined with a bottle mouth of the container for opening and closing the opening of the bottle mouth; a fixing ring, by a hinge portion and a plurality of connections a portion connected to a lower portion of the cap body, having a slit at a lower side of the hinge portion; forming an annular protrusion at the fixing ring, the inner diameter of the annular protrusion protruding along the inner circumferential surface is larger than that formed at the mouth of the bottle The outer diameter of the locking projection is small by 0.3 mm to 0.6 mm, and the bottom surface of the annular projection forms a tapered surface whose inner diameter gradually increases from the inner end portion thereof, and the width direction of the lower end of the annular ring is spaced from the upper end of the annular projection. The interval between the bottom surface of the locking projection formed at the mouth of the bottle to the upper surface of the support projection is wider by 0.3 mm to 0.6 mm.

Preferably, one or more friction protrusions are formed on the inner wall of the fixing ring at the upper portion of the annular protrusion, and the friction protrusion is in a state in which the upper surface of the annular protrusion abuts against the bottom surface of the locking protrusion, corresponding to The outer end portion of the locking projection is in contact, and the protruding length of the friction projection on the inner wall of the fixing ring is smaller than the protruding length of the annular projection on the inner wall of the fixing ring.

In addition, in the embodiment and other embodiments, the fixing ring forms one or more cutting grooves from the lower end to the upper side partition along the lower end circumference, the cutting groove having a depth, the fixing corresponding to the depth of the cutting groove. The lower end portion of the ring forms a skirt which tapers toward the lower end and expands outward.

The hinge portion is a portion in which the cap body is bent along an intermediate portion in the up-and-down direction, and a shape of a gradually recessed shape is formed from an outer side surface of the cap body toward the inner side to form a cap body. The retaining ring is a quasi-bending curved portion.

Preferably, a flexible support piece is further formed on the hinge portion, the flexible support piece having a rod shape erected at a lateral center portion of the curved portion, and an upper portion centering on the curved portion and the hinge portion Connected integrally, the two portions are separated from the portion connected to the lower portion centered on the curved portion by a first incision portion penetrating inwardly and outwardly, and the flexible support sheet is sealed at the bottle mouth of the cap body sealing container In the state, the lower end portion faces the lower side, and the lower end portion is elastically bent according to the degree of opening during the opening of the bottle mouth of the container body, by which the outer surface of the lower end portion is elastically contacted and supported at the bending The side wall of the mouth of the container at the upper portion of the portion, thereby maintaining the state in which the cap body opens the mouth of the container.

Preferably, the flexible support sheet is formed such that the lower end portion of the lower portion of the curved portion is gradually thinner than the upper portion.

The present invention has the following effects.

The hinge portion is formed in a shape recessed from the side wall of the container cover including the cap body and the fixing ring toward the inner side, and when the hinge portion is rotated to open the bottle mouth, the user's hand is prevented from being injured, and a feeling of security is provided.

As explained in the following first and second embodiments of the present invention, the elastic portion is elastically contracted in a natural state to prevent idling, or the elastic restoring force between the locking projection and the supporting projection is used instead of the support. The wing prevents idling, thereby reducing the overall size according to the outer diameter of the container cover, thereby saving material costs, improving productivity, and reducing the defect rate.

In each of the embodiments of the present invention, the sliding core for forming the outer connecting portion can be used together instead of the hinge portion having the depth from the inner side to the outer side, and Moreover, it is easy to take out by the elastic deformation relationship of the elastic portion of the first embodiment, and the protruding length of the annular projection is formed to be short, thereby simplifying the mold, saving manufacturing costs, and prolonging the life of the mold.

Moreover, in the first embodiment of the present invention, the container formed on the fixing ring can be completely separated from the mouth of the container to the fixing ring, and the container and the container cover formed of different materials can be easily separated and recovered, thereby improving Recovery rate.

10, 40, 40a, 40b‧‧‧ container lid

12‧‧‧ top

14‧‧‧ screw side wall

16, 42‧‧‧ cap body

18, 48, 48a, 80‧‧‧ fixed ring

20, 46‧‧‧ Connections

22, 44‧‧ ‧ hinge department

24, 50‧‧ ‧ slit slit

26‧‧‧cutting department

28‧‧‧Steps

30‧‧‧Anti-rotor

52‧‧‧Flexible Department

54‧‧‧Close

56‧‧‧First inclined surface

58‧‧‧Second inclined surface

60, 86‧‧‧ cut slots

62, 88‧‧‧ skirt

64‧‧‧Peace

68‧‧‧Flexible support

70‧‧‧The first incision

82‧‧‧ annular protrusion

84‧‧‧ friction protrusion

B‧‧‧ Container

C‧‧‧ stuck protrusion

D'‧‧‧ has room

N‧‧‧ bottle mouth

H‧‧‧Retaining frame

d‧‧‧Threaded length

D'‧‧‧Additional length

Die‧‧‧Mold

C/B, C/B'‧‧‧ core

E/S‧‧‧ outer perimeter

E/L‧‧ horizontal line

F/S‧‧ internal thread

I/S‧‧‧ inner circumference

L/N‧‧‧ has tolerances

M/S‧‧‧ external thread

S/C‧‧‧ support protrusion

1 and 2 are perspective views showing the structure of a container cap having a function of preventing loss or preventing idling according to various embodiments of the prior art.

Figures 3a to 3c are cross-sectional views for explaining the process of joining the container lid to the mouth of the container by the prior art and the conditions of the process in the production process.

4a through 5 are cross-sectional views illustrating the relationship of the prior art mold for producing a container lid and the removal of the container lid from the mold.

Figure 6 is a partially enlarged cross-sectional perspective view of a container closure having a function of preventing loss or preventing idling, in accordance with an embodiment of the present invention.

Fig. 7 is a partially cutaway perspective view for explaining the structure of the elastic portion and the hinge portion of Fig. 6.

8a and 8b are system diagrams for explaining a planar state of the operational relationship of the elastic portion of Fig. 6.

Fig. 9 is a partial cross-sectional view showing a state in which a bottle opening including a elastic portion is joined to a mouth of a container.

Figure 10 is a plan view showing a modified state of the elastic portion of Figure 6 System diagram.

Figure 11 is a cross-sectional view showing the structure of a container cap having a function of preventing loss or preventing idling according to other embodiments of the present invention.

The words or words used in the description of the present invention and the scope of the claims are not to be construed as being construed as the meaning of the The principle of the concept of the term should be interpreted as conforming to the meaning and concept of the technical idea of the present invention.

The embodiment and the illustrated structure described in the specification of the present invention are preferred embodiments of the present invention, and do not all represent the technical idea of the present invention. Therefore, it should be understood that the application of the present invention can replace these various equalities. The invention and the modifications are all within the scope of the patent application scope of the present invention.

In the description of the present invention, the state in which the container has been set vertically, that is, the state in which the mouth of the container is upward is taken as the upper side, the inner side indicates the center direction of the inside of the container at a corresponding height or a portion in the direction thereof, and the outer side indicates the inner side. The opposite direction or the part in its direction.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

The container cover 40 according to the present invention having the function of preventing loss or preventing idling, as shown in FIGS. 6 to 11, is the same as the prior art, and includes: a cap body 42 which is coupled with the bottle opening N of the container B by screws. The opening of the bottle opening N is opened and closed; the fixing ring 48 is connected to the lower portion of the cap body 42 by a hinge portion 44 on one side and a plurality of connecting portions 46.

Moreover, the fixing ring 48 includes a lower portion of the hinge portion 44 formed with The slit 50 is cut.

Here, the features of the embodiments of the present invention will be further described in detail.

Example 1

The container cover 40a having the function of preventing loss or preventing idling by an embodiment of the present invention is a cover made of synthetic resin by injection molding, as shown in FIGS. 6 to 10, at the fixing ring 48a. More than one elastic portion 52 is formed, and the elastic portion is formed such that the thickness on the at least partial interval plane (when viewed from above) of the circumference of the fixing ring 48a is bent once at the inner side, and then bent at the end of the inner predetermined position. The circumferential position of the outer fixing ring 48a is secondarily bent, and the primary bending portion and the secondary bending portion form a shape that protrudes inward on the circumference of the fixing ring 48a.

The shape of the elastic portion 52 will be further described in detail. As shown in FIG. 7, a predetermined thickness is formed on the plane to form a circular arc-shaped circumference, and the thickness of the circumference formed at the predetermined position in the circumference is bent once toward the inner side, and is at a preset position. The inner position in contact with the outer peripheral surface E/S of the mouth N of the container B is twice bent, and then continuously curved in the circumferential direction of the outer side.

Thereby, the partial section which is preset in the circumference of the fixing ring 48 of the elastic portion 52 has a shape which is curved inward as a continuous portion of the fixing ring 48.

In other words, in a state in which both ends in the longitudinal direction of the elastic portion 52 are connected to both ends of a predetermined partial section in the circumference of the fixing ring 48, the intermediate portion of the elastic portion 52 is bent toward the inner side of the circumference of the fixing ring 48 to form a protrusion. shape.

a portion of the elastic portion 52 corresponding to the outer peripheral surface E/S of the mouth N, The state of the injection molding (the state in which the external force is excluded) is located on the side wall of the predetermined bottle opening N, that is, the inner side of the outer peripheral surface E/S.

Thereby, the end portion of the elastic portion 52 that protrudes inward forms an abutting surface 54 that elastically abuts against the side wall of the corresponding bottle neck N.

The elastic portion 52 has a shape that is folded toward the center of the abutting surface 54 at intervals, and as shown in Figs. 8a and 8b, can be elastically expanded in accordance with an external force.

Here, the elastic portion 52 may be formed in a plurality of sections, and in this case, depending on the inner center of the container cover 40a, it may be disposed at a mutually symmetrical position with a pair facing each other, or may be at the inner center of the container cover 40a. It is preferably arranged at equal angles along the circumference of the retaining ring 48.

Further, when the elastic portion 52 is disposed, the inner diameter of the contact surface 54 of the elastic portion 52 is preferably smaller than the corresponding bottle when it is not attached to the mouth N of the container B after the injection molding. The diameter of the outer peripheral surface E/S of the port N.

Thus, in a state in which the container lid 40a is attached to the mouth N of the container B, the contact surface 54 of the elastic portion 52 elastically abuts against the outer peripheral surface E/S of the mouth N of the corresponding position to prevent the container cover 40a from rotating. Friction.

In the state where the container lid 40a is attached to the mouth N of the container B, the both side portions centered on the abutting surface 54 of the elastic portion 52 are expanded more than the molding state by injection molding, which is a matter of course. of.

The upper end of the elastic portion 52 on the inner side of the circumference of the fixing ring 48 forms a downward first inclined surface 56 from the outer end to the inner side of the abutting surface 54, and the lower portion of the elastic portion 52 located on the inner side of the circumference of the fixing ring 48 from the outside to the outside Inside The lower end of the abutment surface 54 forms an upward second inclined surface 58.

The first inclined surface 56 is for easily taking out the elastic portion 52 from a corresponding core (not shown) in the mold at the time of injection molding, and more specifically, for causing a concave cut (a portion protruding toward the inside) The upper portion of the elastic portion 52 is detached from the position of the core along the first inclined surface 56.

When the mouth N of the container B is combined with the container lid 40a, the second inclined surface 58 serves to easily insert the mouth N of the container B into the inside of the container lid 40a.

The upper and lower width direction intervals from the upper end of the first inclined surface 56 of the elastic portion 52 to the lower end portion of the fixing ring 48 with respect to the bottom surface of the locking projection C formed from the mouth N of the container B to the support protrusion S/C The upper space is preferably wider by 0.5 mm to 1.5 mm, and the height from the upper end to the lower end of the first inclined surface 56 (the upper end of the abutting surface 54) is 0.7 mm to 2 mm, thereby being combined at the mouth N of the container B. At the time of the container lid 40a, the elastic portion 52 easily passes through the locking projection C.

At this time, one or more slit grooves 60 having a depth are formed from the lower end to the upper partition along the circumference of the lower end of the fixing ring 48, and a skirt portion 62 is preferably formed from a lower end portion of the fixing ring 48 to a depth of the slit groove 60. The thickness of the skirt is gradually thinner toward the lower end and is expanded toward the outside.

Further, it is preferable that the pad portion 64 is further formed at a portion of the fixing ring 48 between the lower side of the hinge portion 44 and the slit slit 50 so as to be broken by the rotation of the hinge portion 44.

As described above, according to the container cover 40a of the embodiment of the present invention, the fixing ring 48 including the take-up inclination θ and the elastic portion 52 is naturally removed by the first inclined surface 56 as shown in FIG. Expanded at the same time Take out, which simplifies the mold.

In the process of being coupled to the mouth N of the container B, as shown in FIG. 9, the second inclined surface 58 of the elastic portion 52 is gradually narrowed upward, thereby guiding the upper end of the corresponding bottle mouth N, Therefore, it is possible to reduce the unnecessary manual work of the worker, and by expanding the elastic portion 52, the pressure up to the bonding can be reduced, and the appearance of the side wall of the container cover 40a excluding the inclination θ can be formed as a cylindrical shape excluding the additional expansion portion. As the diameter becomes smaller, the material cost can be reduced, including the combined production process to reduce the defect rate and increase the production speed. The present invention can be expected to have the above effects.

At the same time, the horizontal state of the mouth N corresponding to the container B is maintained by the amplitude of the fixing ring 48 stably supported in the vertical direction between the locking projection C and the supporting projection S/C, thereby forming a clean and neat appearance.

Example 2

According to the second embodiment of the present invention, the container cover 40b having the function of preventing loss or preventing idling, as shown in Fig. 11, forms an annular projection 82 at the fixing ring 80, and the inner diameter of the annular projection protruding along the inner peripheral surface is formed. The outer diameter of the locking projection C at the mouth of the bottle is small by 0.3 mm to 0.6 mm, and the bottom surface of the annular projection 82 forms a tapered surface whose inner diameter gradually increases from the inner end portion thereof, from the upper surface of the annular projection 82 to the lower end of the stationary ring 80. The interval in the amplitude direction is wider by 0.3 mm to 0.6 mm than the interval between the bottom surface of the locking projection C formed at the mouth N to the upper surface of the support projection S/C.

Further, one or more friction projections 84 are formed on the inner wall circumference of the fixing ring 80 at the upper portion of the annular projection 82, and the friction projections are in contact with the locking projections C on the upper surface of the annular projection 82, and the corresponding locking projections C. of The outer end contact, the protruding length of the friction projection 84 on the inner wall of the fixing ring 80 is preferably smaller than the protruding length of the annular projection 82 on the inner wall of the fixing ring 80.

Forming at least one slit groove along the circumferential compartment of the lower end portion of the fixing ring, the slit groove having a depth from the lower end to the upper side, and a lower end portion of the fixing ring corresponding to the depth of the slit groove is gradually changed toward the lower end direction A skirt 88 that is thin and flares outward.

At this time, the skirt portion 88 can distinguish the lower portion of the fixing ring 80 by the slit groove 86 of one embodiment of the present invention.

The skirt portion 88, as explained for the skirt portion 62 of an embodiment of the present invention, applies pressure to the interval between the bottom surface of the locking projection C and the upper surface of the support projection S/C of the lower portion of the fixing ring 80 together with the annular projection 82. By this pressure, the container lid 40b is prevented from idling the bottle mouth N.

In the above-described embodiment and other embodiments of the present invention, the hinge portion 44 is a portion where the cap body 42 is bent along the intermediate portion in the up-and-down direction with respect to the fixing ring 48 and the fixing ring 80, from the cap body 42. The outer side wall forms a gradually recessed shape facing the inner side direction, and forms a curved portion that guides the cap body 42 to be bent with the fixing ring 48 and the fixing ring 80 as a standard.

Further, a flexible support piece 68 having a rod shape that is erected at a lateral center portion of the curved portion is formed in the hinge portion 44, and an upper portion centered on the curved portion is connected to the hinge portion 44. In one piece, the both side portions and the portion connected to the lower portion centering on the curved portion are separated by the first slit portion 70 penetrating inward and outward.

The flexible support sheet 68 seals the mouth of the container B at the cap body 42 In the combined state of N, the lower end portion faces the lower side, and in the process in which the bottle cap body 42 opens the mouth N of the container B, the lower end portion is elastically bent according to the degree of opening, by which the outer surface of the lower end portion is elastically contacted. The outer peripheral surface E/S of the bottle opening N of the container B located at the upper portion of the curved portion is supported, thereby maintaining the state in which the cap body 42 opens the bottle opening N of the container B.

Further, the flexible supporting piece 68 is preferably formed such that the lower end portion of the lower portion of the curved portion is gradually thinner than the upper portion.

40a‧‧‧ container lid

42‧‧‧Cap body

44‧‧ ‧ hinge department

48‧‧‧Fixed ring

50‧‧‧cut slit

52‧‧‧Flexible Department

54‧‧‧Close

56‧‧‧First inclined surface

58‧‧‧Second inclined surface

60‧‧‧cut slot

62‧‧‧ skirt

64‧‧‧Peace

68‧‧‧Flexible support

B‧‧‧ Container

C‧‧‧ stuck protrusion

N‧‧‧ bottle mouth

E/S‧‧‧ outer perimeter

M/S‧‧‧ external thread

S/C‧‧‧ support protrusion

Claims (10)

A container lid having a function of preventing loss or preventing idling, comprising: a bottle cap body, which is combined with a bottle mouth of a container for opening and closing an opening of the bottle mouth; a fixing ring, by a hinge portion on one side and plural The connecting portion is connected to a lower portion of the cap body, and has a slit at a lower side of the hinge portion; and one or more elastic portions are formed on the fixing ring, and the thickness of the elastic portion is inward at least in a partial interval of the circumference The outer side is continuously curved, and is curved toward the inner side of the circumference to form a protruding shape; the end portion protruding inward in the elastic portion forms an abutting surface elastically abutting against the side wall of the corresponding bottle mouth; the elastic portion is adhered thereto Both sides of the shape in which the faces are centered and folded toward each other are elastically expanded corresponding to the external force. A container cap having a function of preventing loss or preventing idling as recited in claim 1, wherein an upper portion of the elastic portion has a downwardly inclined first surface from an outer end to an inner side of the abutting surface, and a lower portion of the elastic portion is from the outer side The lower end of the inwardly facing abutment surface forms an upward second inclined surface. a container cover having a function of preventing loss or preventing idling as recited in claim 2, wherein an upper and lower amplitude direction interval from an upper end of the first inclined surface of the elastic portion to a lower end portion of the fixing ring is formed relative to The interval from the bottom surface of the locking projection of the mouth of the container to the upper surface of the supporting projection is wider from 0.5 mm to 1.5 mm from the first inclined surface The height from the upper end to the lower end is 0.7 mm to 2 mm. The container cap having the function of preventing loss or preventing idling as described in claim 1, wherein the elastic portion is formed in a plurality of sections along the circumference of the fixing ring, and is disposed symmetrically with respect to the center of the fixing ring of each section. A container lid having a function of preventing loss or preventing idling, comprising: a bottle cap body, which is combined with a bottle mouth of a container for opening and closing an opening of the bottle mouth; a fixing ring, by a hinge portion and a plurality of connecting portions Attached to a lower portion of the cap body, having a slit at a lower side of the hinge portion; forming an annular protrusion at the fixing ring, the inner diameter of the annular protrusion protruding along the inner circumferential surface is larger than the card formed at the mouth of the bottle The outer diameter of the projection is small by 0.3 mm to 0.6 mm, and the bottom surface of the annular projection forms a tapered surface whose inner diameter gradually increases from the inner end portion thereof, and the width direction interval from the upper surface of the annular projection to the lower end of the stationary ring The interval between the bottom surface of the locking projection formed at the mouth of the bottle to the upper surface of the support projection is wider by 0.3 mm to 0.6 mm. A container cap having a function of preventing loss or preventing idling as recited in claim 5, wherein a circumference of an inner wall of the fixing ring at an upper portion of the annular projection forms one or more friction projections which are tightly attached to the annular projection Attached to the bottom surface of the locking projection, in contact with the corresponding outer end portion of the locking projection, the protruding length of the friction projection on the inner wall of the fixing ring is smaller than the annular shape on the inner wall of the fixing ring The protruding length of the protrusion. A container lid having a function of preventing loss or preventing idling as recited in any one of claims 1 to 5, wherein at least one slit groove is formed in the fixing ring from the lower end to the upper compartment along the circumference of the lower end, the slit groove having a depth A skirt portion is formed at a lower end portion of the fixing ring corresponding to the depth of the slit groove, and the skirt portion is gradually thinned toward the lower end direction and expanded toward the outside. The container cap having the function of preventing loss or preventing idling according to claim 1 or 5, wherein the hinge portion is a portion of the cap body which is bent along an intermediate portion in the up-and-down direction based on the fixing ring, from the bottle The outer side wall of the cover body forms a gradually concave shape facing the inner side direction, and forms a curved portion that guides the bottle body to be bent with the fixing ring as a standard. A container cover having a function of preventing loss or preventing idling as described in claim 8, wherein a flexible support piece is further formed at the hinge portion, the flexible support piece having a rod erected at a lateral center portion of the curved portion a shape in which an upper portion centered on the curved portion is integrally connected to the hinge portion, and a portion connected to the lower portion centering on the curved portion is separated by a first incision portion penetrating inwardly and outwardly; the flexible portion In the combined state of the bottle mouth of the cap body sealing container, the lower end portion faces the lower side, and in the process of opening the bottle mouth of the bottle body, the lower end portion is elastically bent according to the degree of opening, thereby In the process, the outer surface of the lower end portion elastically contacts the side wall of the bottle opening of the container located at the upper portion of the curved portion, thereby maintaining the state in which the bottle cap body opens the mouth of the container. As described in claim 9, it has the function of preventing loss or preventing idling The container cover, wherein the flexible support sheet is formed such that a lower end portion of the lower portion of the curved portion is gradually thinner than an upper portion.