JPH06345111A - Closure component and its mounting - Google Patents

Abstract

PURPOSE: To assemble a closure member to a container by one process by mutually closing a cap for closing a spout member, and a container neck, enabling the cap to deflect for fitting and elastically contacting with the container neck, and mutually locking the spout member to the container neck and the cap to seal and contact the spout member with respect to the container neck. CONSTITUTION: A closure member comprises a cap and a spout assembly 12, and is elastically contacted with a container neck of a container lid. That is, the cap and the spout assembly 12 comprise a cap 20 deflectably received by a spout member 22. The cap 20 includes a closure member 24, which is rupturably mounted to an interlocking ring member 26 through the bailing handles 72, 74 and a fragile tab 28. On the other hand, the spout member 22 comprises a spouting neck 30 mounted in a seal ring 32 and a movable rib 34 sealably mounted therebetween. The interlocking ring member 26 and a limiting lip 52 are cooperated with one another to improve the sealability of the seal ring 32 and to keep the high pressure of the container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a member for a container having a snap-on cap or spout cap and spout member assembly that is received on the container neck.
More particularly, a cap and spout member assembly, and a cap on a container in which the cap and spout member assembly includes a snap-on tamper evident cap and a snap-in spout member. And a method for assembling the spout member assembly.

[0002]

2. Description of the Related Art There are many known closure members for sealing the neck of a container, and these closure members have a spout member that is received in the neck of the container and a lid that closes the spout member. There is. Usually, the lid is screwed onto the spout member and the spout member and / or the lid is threadedly engaged with the container neck or clamped to the container neck via a separate clamping ring. For example, US Pat. No. 42366.
No. 29, No. 46322282, and No. 456800.
No. 6 discloses various tightening ring means for tightening the spout member to the neck of the container, which tightening ring is constructed of malleable metal. A disadvantage of this type of closure is that the metal fastening ring cannot be recycled with the various plastic elements. This is why these metal clamping rings must be removed from each container before recycling. Another drawback is the need for an additional assembly step of assembling the tightening ring on the spout member prior to cap assembly.

Another example of a lid for sealing the neck of a container is US Pat. No. 5,400,126. This patent discloses a plastic closure member for a plastic container having a frame cap adapted to be screwed onto an externally threaded container neck on a flexible spout member. The frame cap is integrally rupturable attached to a threaded ring adapted to be screwed into the outer threaded container neck. A disadvantage of this type of closure is that during screwing of the ring onto the neck of the container, the screw cap may break the frame cap. A flexible web is provided between the cap and the ring to absorb the extra screwing force, but nevertheless excess radial force beyond those forces contained by the flexible web. Occurs during assembly of the cap and ring to the neck of the container and destroys the rupturable cap and ring mount. This invalidates the illegal opening verification function. Also, in many uses, the tolerances of these container necks are not tightly controlled, and due to the stacking of the cap, spout member, and container neck tolerances, the spout member is a continuous ring of containers on the neck. The screw will sit on the container neck before it is expected to break the rupturable cap and ring fitting.

Other closure members for sealing the container neck include a mating spout member received in the container neck,
A cap screwed onto the neck of the container above the fitting spout member. For example, US Pat.
No. 70 discloses a closure member having a spout member received in a groove provided in the neck of the container. However, the spout member elastically deforms the container neck during assembly to position it in the groove. US Patent No. 5
No. 108009 and No. 4706829 disclose other similar interlocking spout / outlet members and container neck structure. Nevertheless, there is a need for improved mating closure members for universal use with various spout members.

For example, the closure members of the aforementioned US Pat. Nos. 5,108,009 and 4,706,829 have a hard spout member formed of a relatively stiff plastic formed into a fixed shape. As such, only this spout member provides the necessary elastic interlocking force required to seal the container neck, and this cap therefore enhances the spout / container neck seal. Is not required, so that it can be removed entirely from the neck of the container. Other more flexible spout members are described in U.S. Pat. Nos. 4,917,270, 5,108,009 and 4,049.
It provides additional sealing problems beyond the closure of 706829.

In particular, the flexible spout member movable between the overlapping position and the withdrawal position is more susceptible to leakage than the rigid spout at the spout / container neck interface surface. As a result, such flexible spouts typically do not come out when the cap is removed from the spout /
It requires additional means to maintain a sealed container neck. For example, European Patent Application EPO No. 3208
No. 08A1 has a spout having a U-shaped flange flexibly received on a conical container flange, and a retaining ring flexibly received at the spout.
Is disclosed. This spout is attached to the neck of the container before the cap is assembled. One drawback of such a structure is
It is said that this continuous assembly leaves access to the container contents for tampering or contamination. If the cap and spout were assembled together, then much greater force would be required to assemble the cap and spout to the container flange. This is because both the U-shaped flange of the spout and the ring of the cap must elastically flex towards its container flange. If the cap and spout are constructed of less elastic plastic to facilitate simultaneous assembly, the assembled cap and spout increase the chance of leakage due to the high internal container pressure.

[0007]

Therefore, there is a need for an improved closure member which is releasably receivable in the neck of a container and which has the characteristics to overcome the disadvantages of the closure member described above. I am doing it. Such an improved closure member provides improved sealing characteristics against high internal container pressures such as those caused by impact or drop of the container, yet is easily assembled to the container neck at the same time. Desirably, such a closure member is constructed entirely of plastic and is easily molded to facilitate manufacture. Also, this closure member
Tampering should be verified and should be easily assembled to the container neck without risking damage to this tampering verification means.

[0008]

According to one embodiment of the invention, a closure member for a container comprises a container neck extending axially from the container and a seal for sealing the container neck. A spout member including a means, and a first means for axially locking the spout member with the container neck in an axial direction, and elastically bendable for fitting to the container neck. 1
Means, a cap having means for closing the spout member, and a second means for axially locking the cap with the container neck in an axial direction, and elastically for fitting to the container neck. A second means that is bendable, the first means interlocking the spout member with the neck of the container;
Means interlock the cap with the container neck on the spout member and the first and second means maintain the spout member in sealing contact with the container neck.

Still further in accordance with one embodiment of the present invention, the mating tamper evident proof closure member includes a flexible resilient seal ring adapted to be sealably received in a container neck. And a sealing ring having a first interlocking lip that interlocks with a corresponding first interlocking lip of the container neck, and also the container neck. A seal ring elastically deflectable to fit into the housing, a closure for closing the spout member, and an interlocking chain adapted to receive the interlocking container neck on the sealring. A lockable ring, wherein the closure member is rupturablely attached to the interlocking ring, and
The interlocking ring has a second interlocking lip which interlocks with a corresponding second interlocking lip of the container neck and which is elastic for snapping into the container neck. When the flexible interlocking ring, the spout member and the cap are received in the container neck and interlock with the container neck independently of the seal ring, the second interlocking ring An interlocking lip extends below the first interlocking lip of the seal ring.

According to one embodiment of the present invention, the closure member further comprises a container neck extending axially from the container and having an inner sealing surface and an outer sealing surface, and the container neck. A spout member having a seal ring that is sealed and received, an inner seal ring portion that seals the inner seal surface of the container neck, and an outer seal ring that seals the outer seal surface of the container neck. A seal ring having a portion and a lateral seal ring portion mounted between the inner seal ring portion and the outer seal ring portion and bridging the container neck portion; and the container neck portion. A stop means for stopping the seal ring in the axial direction; and a stop means for stopping the seal ring in the axial direction when the inner seal ring portion is forcibly released from the seal contact with the inner seal surface of the container neck. Do A stop means defines a pivot for the seal ring to rotate relative thereto and the seal ring rotates about the axially restraining stop means toward the outer sealing surface of the container neck. Thereby increasing the sealing contact of the outer seal ring portion.

According to an embodiment of the present invention, the method of assembling the lid on the neck of the container comprises a means for sealing the neck of the container and a first means for axially locking the spout member to the neck of the container. A first means having elastic flexibility to fit into the neck of the container; and a closing means for closing the spout member; Second means for axially interlocking the cap to the neck, the second means being elastically flexible to fit on the neck of the container
Means for forming a cap and spout member assembly by assembling the cap to the spout member; and axially connecting the cap and spout member assembly to the neck of the container. Assembly, the first means and the second means elastically bend to fit into the neck of the container;

Accordingly, one object of the present invention is to provide an improved closure system for containers which can be assembled to the container in one step.

Another object of the invention is to provide a closure member having improved sealing properties.

Yet another object of the present invention is to provide a closure member constructed entirely of plastic to facilitate manufacturing and recycling of the packaging system.

Yet another object is to provide a closure member that is resistant to deformation at the container opening.

It is another object of the present invention to provide a threaded closing member which can be easily assembled to the neck of a container and which can be verified as an illegal opening.

It is another object of the present invention to provide a closure member which has an easy rupture means but which can be tampered with by tampering during assembly to the container neck.

[0018] These and other objects and advantages will be apparent from the following drawings and related description.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to increase the understanding of the principle of the present invention, the present invention will be described with reference to the embodiments shown in the drawings.
Nevertheless, this description should not be construed as limiting the scope of the invention, as variations and modifications of the depicted apparatus, and further applications of the principles of the invention depicted herein, will generally occur to those skilled in the art. It will be understood that

Referring to FIG. 1, the closure member 1 of the present invention.
0 includes a cap and spout assembly 12, which is adapted to snap into a container neck 14 of a container lid 16. This cap and spout assembly 12 differs from previous cap and spout assemblies that use a reduction ring or are screwed to the neck of the container.
Is attached to the container neck 14 so that the central axis 18
Associated with the container neck 14 in a generally axial direction. The various elements of the closure member 10 are thus flexible to facilitate the mating action of the cap and spout assembly 12 on the container neck 14. Preferably,
The elements of the closure member 10 are made of plastic material and are easy to mold. Further, by forming all the elements constituting the closing member 10 from the plastic material, the closing member 10 can be easily recycled without disassembling or separating the respective elements.

2-4, details of the cap and spout assembly 12 are shown. The cap and spout assembly 12 includes a cap 20 flexibly received on a spout member 22. Unlike known lids that are sequentially assembled to the neck of the container, the cap and spout assembly 12 is incorporated into the container neck 14 in a single step. Thus, this cap and spout assembly 1
No. 2 eliminates the intermediate assembly process that may interfere or contaminate the contents of the container. Further, by fitting the cap and spout assembly 12 to the container neck as one assembly rather than as each separate element.
Eliminates the need for a separate assembly tool to be applied individually to the spout member.

The cap 20 generally includes a closure member 24. This closure member 24 is interlocking outer ring member 2 via bail handles 72, 74 and frangible tab 28.
It is attached to 6 so that it can be easily broken. The mutual locking outer ring member 26 is made of a thermoplastic material and is elastic so as to mutually lock the container neck 14 and the restraining spout member 22 so as to make a sealing contact with the container neck 14. Flexibly. The cap 20 is a tamper proof cap, the means of which is an axial interlocking relationship between the interlocking outer ring member 26 and the container neck 14 and interlocking with the closure member 24 via a frangible tab 28. It is provided by the frangible attachment of the lock outer ring member 26.

The restraint spout member 22 is a flexible spout member for assisting the pouring. The spout member 22 includes a spout neck portion 30 disposed inside the seal ring 32, and a flexible web 34 sealably attached between the spout neck portion 30 and the seal ring 32. have. The pouring neck portion 30 can be positioned between a push-in position inside the seal ring 32 and an unillustrated stretched position that is raised from the seal ring 32. The spout member 22 is a flexible spout member and is made of a flexible thermoplastic material similar to the material of the cap 20. However, preferably this spout member 2
No. 2 does not have elastic properties to reduce its flexing properties between the pushing position and the stretching position, and it also prevents dimensional variations of the container when tightened by the interlocking ring member 26. Correspondingly, the sealed state can be maintained.

The cap 20 is formed by screwing the closing member 24 into the threaded portion of the spouting neck 30 so that the spouting member 2
2 together with the cap and spout assembly 12. Preferably, the closure member 24 has two threads 36, 38.
have. The screws have threaded engagement positions spaced apart from each other within the closure member 24 to allow the cap 20 to threadably engage the spout member 22 each half turn of the cap 20. Similarly, spout neck 30 has two threads 40, 42 to provide corresponding multiple thread engagement positions. Cap 20 for spout member 22
In order to obtain a good sealing condition of the sealing member 24, the closing member 24 further has a circular sealing ridge 44. This ridge 44
Defines a circular groove 46 for receiving and sealingly engaging the upper edge of the spout neck 30.

The interlocking ring member 26 has an interlocking lip 48 that extends radially inward of the ring member 26 below the seal ring 32 when it is assembled to the spout member 22. ing. This mutual locking lip 48
Is the corresponding interlocking lip 5 of the container neck 14 shown in FIG.
0 and lock each other. The cap 20 is the spout member 2
When screwed into 2, the interlocking lip 48 resiliently flexes radially outward and resiliently over the seal ring 32. As the closure member 24 is further screwed onto the spout neck 30, the seal ring 32 seats against the interlocking ring member 26. In particular, the interlocking ring member 26 has a limiting lip 52 which seats in a corresponding recess 54 in the sealing ring 32. The interlocking ring member 26 and the limiting lip 52 work together to improve the sealing characteristics of the seal ring 32 and maintain a high container pressure as described below with respect to FIG.

Referring to FIG. 5, after the cap 20 is assembled to the spout member 22, the cap and spout assembly 12 is fitted to the container neck 14. When the cap and spout assembly 12 is received in the container neck 14, there is an axial close fit between the cap and spout member and the container neck, with little axial play between these elements. There is no. When the closing member 24 is twisted with respect to the spout member 22 in this manner, the closing member 24 moves.
From the outside in the axial direction. Since the mutual locking ring member 26 is axially held at a predetermined portion of the container neck portion 14, the axial movement difference between the closing member 24 and the mutual locking ring member 26 has a rupturable tab 28. Breaks,
Access to the contents of the container is clearly stated. Even after the tab 28 is broken, the mutual locking ring member 26 remains closed.
It operates independently from 4 and keeps a positive seal of the seal ring against the inner surface of the container neck to maintain a high internal pressure in the container. The interlocking ring member 26 operates similarly and continues to fit the seal ring 32 onto the container neck 14 when force is exerted on the spout member 22.

In the preferred embodiment, the container neck 14
Extending axially upward from the recessed shape, the cap and spout assembly 12 is received substantially flush with the surface 84 of the container lid 16. The container neck 14 is recessed below the surface 84 and the cap and spout assembly 12 is substantially flush with the surface 84 to allow multiple containers to be stacked on top of each other. Further, the mutual locking ring member 26 is difficult to approach, which makes it difficult to cheat on this portion.

2-4, the seal ring 32 has a generally U-shaped cross section and a side seal ring portion 56 that forms a generally U-shaped bottom and an inner seal ring portion. 58 and an outer seal ring portion 60 forming a generally U-shaped side surface. Interlocking lips 62 extend radially inward of the outer seal ring portion 60 and interlock with corresponding interlocking lips 63 of the container neck 14 shown in FIG. This sealing ring 32 and the interlocking ring member 2 are different from the known closing members which interlock with the cap on the sealing ring.
6 is mutually locked with the container neck 14 independently of each other. As a result, the mutual locking ring member 26 maintains the seal ring 32 engaged with the container neck 14 while maintaining a high internal pressure within the container. In particular, the mutual locking ring member 2
6 prevents the lip 62 of the seal ring 32 from suddenly coming off the lip 63 of the container neck 14 when the container is pressurized. Further, the cap 20 is attached to the container neck 14
By first locking each other with
It prevents the dispensing neck 30 from extending when the container is pressurized. Thus, the improved sealing system prevents leaks from occurring when the container is pressurized.

There is also a more aggressive sealing mechanism than is provided simply by the interlocking engagement of the cap and sealing ring. If the pressure inside the container is low,
Inner seal ring portion 58 and outer seal ring portion 60
And elastically seal the container neck portion 14. Preferably, inner seal ring portion 58 also includes a tapered inner seal surface 64. The sealing surface 64 corresponds to the tapered inner sealing ring surface 65 of the container neck 14 shown in FIG. When the container internal pressure is high, the interlocking outer ring member 26 cooperates with the seal ring 32 to improve the sealing action of the outer seal ring portion 60, thereby unsealing the inner seal ring portion 58. Try to eliminate the active part positively.

Referring to FIG. 6, the interlocking outer ring member 26 and seal ring 32 in cooperation are shown in greater detail. In the interlocking ring member 26 separated by an axial distance from the interlocking lip 48 that is approximately the same as the assembly axial distance between the indentation 54 of the seal ring 32 and the interlocking lip 50 of the container neck 14. A limiting lip 52 is formed at the bottom. The seal ring 32 seals the container neck 14 from the inside via the inner seal ring portion 58 and from the outside via the outer seal ring portion 60. Nevertheless, when a high internal pressure is generated in the container due to an impact applied to the container or a drop of the container, the inner seal ring portion 58 is lifted from the container neck 14 and moved inward in the radial direction of the container neck 14. Tend to do. The mutual locking outer ring member 26 is the seal ring 3
Since it is mutually locked with the container neck 14 independently from 2,
The seal ring 32 is prevented from being lifted from the container neck portion 14. Instead, when the inner seal ring portion 58 rotates and lifts the inner seal ring portion 58 from the container neck 14, the seal ring 32 rolls or pivots against the limiting lip 52 to provide an outer seal. The ring portion 60 and the reciprocal locking lip 62 are driven to make a large sealing contact with the reciprocal locking lip 63 of the container neck 14. A lip 55 is provided at least in part for molding requirements and convenience. This lip 55 will also react to the face 53 of the limiting lip 52 as part of or by the rocking or pivoting movement of the seal ring 32. The lip 55 also includes an interlocking outer ring member 2
If 6 is continuous and does not include recesses 80, 82, it provides a third annular sealing surface opposite surface 53.

2-4, to further improve the sealing of the cap and spout assembly to the container neck 14, the spout member 22 is sealed across the spout neck 30. It has a breakable sealing diagram 68 that is operably attached and a pull ring 70 that is attached to the sealing diagram 68. Thus, the closure member comprises the spout member 22,
This seals the spout neck 30 until the pull ring 70 is engaged from the spout neck 30 to break the easily breakable sealing diagram 68.

Further features are added to the cap and spout assembly 12. For example, spout member 22 further includes a plurality of vent ears 66 attached to flexible web 34. These ears 66 extend downwardly from the flexible web 34 when the spout member 22 is in the stored position folded into the seal ring 32. Then, when the spout member 22 reaches the fully extended position and the spout neck portion 30 stands upright from the seal ring 32, the ear portion 6
6 extends radially inwardly of the spout member 22 and operates to form a central flow hole and a plurality of peripheral discharge openings. Venting ear 66 is US Pat. No. 4,555,048.
And the same as those disclosed in No. 4618078.

Further, between a storage position in which the flexible bail handles 72, 74 are flush with the closure member 24 and a ready-to-use position raised from the closure member 24 to facilitate handling and stacking of the containers. It exists and is elastic. Tabs 76, 78 are provided for easy access to the bail handle. These tabs 7
Reference numerals 6 and 78 extend radially outward of the bail handles 72 and 74, respectively. Similarly, the mutual locking outer ring member 2
6 has a corresponding pair of oppositely spaced indentations for receiving these tabs 76,78. Thus, the tabs 76, 78 are easily accessible when the bail handles 72, 74 are in their initial storage position and are rupturablely attached to the interlocking outer ring member 26. Such a structure is particularly advantageous when the container neck is pushed in as shown in FIG.

While the present invention has been illustrated and described in detail in the drawings and foregoing description, these are merely schematic and are in no way limiting. And the examples described herein are merely preferred embodiments of the present invention, and all modifications and improvements belong to the spirit of the present invention which is desired to be protected.

[0035]

The closure member of the present invention provides improved sealing characteristics against high internal container pressures such as those caused by impact or drop of the container, and is also easily assembled at the same time to the container neck. The closure is made entirely of plastic and is easily molded for ease of manufacture. The closure member is also tamper evident and can be easily assembled to the container neck without risking damage to the tamper evident means. Further, the closure member of the present invention can be assembled to the container in one step. In addition, the whole structure is made of plastic to facilitate the manufacturing and recycling of the packaging system. In addition, it has durability against deformation at the container opening. Also, a threaded closing member that can be easily assembled to the neck of the container and that can be verified as an illegal opening is provided. Further, the present invention provides a closure member which is a means that is easy to break but has means capable of demonstrating a false opening that prevents the breakage during assembly to a container neck.

[Brief description of drawings]

FIG. 1 is an exploded view of a closure member according to the present invention including a cap and spout assembly received on a container neck.

FIG. 2 is an exploded view of the cap and spout assembly shown in FIG.

FIG. 3 is a top view of the cap of FIG.

4 is a top view of the spout of FIG. 2. FIG.

5 is a side elevational cross-sectional view of the closing member of FIG. 1 during assembly, showing the cap and spout in the direction of the arrows in FIGS. 3 and 4. FIG.

FIG. 6 is a partial enlarged view of the assembly of FIG. 5 showing details of various inner seal surfaces.

[Explanation of symbols]

10: Closing member 12: Cap and spout assembly 14: Container neck 16: Container lid 20: Cap 22: Restraint spout member 24: Closing member 26: Mutual locking outer ring member 28: Tab 30: Spout neck 32: seal ring 34: flexible web 44: raised portion 46: circular groove 48, 50: mutual locking lip 52: limiting lip 53: surface 54: dent 55: lip 56: side seal ring portion 58: inward Seal ring part 60: Outer seal ring part 62, 63: Mutual locking lip 64: Inner seal surface with taper 65: Inner seal ring surface with taper 66: Venting ear 68: Sealing diaphragm 70: Pull ring 72 , 74 :: Bail handle 76, 78: Tab 80, 82: Dimple 84: Surface

Claims (35)

[Claims] 1. A closure member, which is a container neck extending axially from the container, a spout member including sealing means for sealing the container neck, and the spout member A first means which mutually locks the neck portion in the axial direction and which is elastically bendable for fitting to the neck portion of the container; and means for closing the spout member. And a second cap for axially locking the cap with the neck of the container.
Second means that is elastically bendable for fitting into the container neck, the first means interlocks the spout member with the container neck, and the second means A closure member interlocking the cap with a container neck on the spout member, wherein the first and second means maintain the spout member in sealing contact with the container neck. 2. The sealing means comprises a seal ring having a generally U-shaped cross section, the seal ring having a generally U shape.
The closure member of claim 1 having a lateral seal ring portion forming a U-shaped bottom, the inner seal ring portion and the outer seal ring portion forming a generally U-shaped side portion. 3. The first means for axially interlocking includes first interlocking lips extending radially inward of the outer seal ring portion and radially outward of the container neck. A second interlocking lip extending in the direction of the first interlocking lip, wherein the first interlocking lip is elastically deflected onto the second interlocking lip and axially interlocking with it. 2 closure members. 4. The spout member includes a spout neck, the spout neck disposed within the seal ring and the flexible web, the flexible web including the spout neck and the flexible web. A sealing member is mounted between the seal ring and the seal ring, and the spout member is movable between a storage position in which the spout member is stacked in the seal ring and an upright position in which the spout member stands upright from the seal ring. Clause 3 closure member. 5. The spout neck has a breakable sealing diaphragm sealably attached across it and a pull ring attached to the breakable sealing diaphragm. The closure member according to claim 4. 6. The container neck portion has a tapered inner sealing surface, and the inner seal ring portion is a corresponding tapered sealing surface for sealing the tapered inner sealing surface. The closure member of claim 5 having: 7. The spout member has a plurality of ears attached to the flexible web, the ears having the flexible web when the spout member is in a storage position. Downwardly extending from the spout to extend radially inward within the spout member to form a central flow hole and a plurality of peripheral vent openings when the spout member is in the withdrawn position. A cooperating closure member according to claim 6. 8. The spout member has a spout neck disposed within a seal ring and a flexible web sealably mounted between the spout neck and the seal ring. The closure member of claim 1, wherein the spout member is movable between a stacked storage position within the seal ring and a withdrawn position upright from the seal ring. 9. The spout member has a plurality of ears attached to the flexible web, the ears having the flexible web when the spout member is in a storage position. Downwardly extending from the spout to extend radially inward within the spout member to form a central flow hole and a plurality of peripheral vent openings when the spout member is in the withdrawn position. The co-operating closure member of claim 8. 10. A closure member, the cap having a closure means, an interlocking ring disposed around the closure member, and means for rupturable attachment of the closure member to the interlocking ring. The closure member of claim 1, having: 11. The second means for axially interlocking comprises a first interlocking lip extending radially inward of the interlocking ring and a radially outward extension of the container neck. A second reciprocal locking lip, wherein the first reciprocal locking lip elastically flexes over the second reciprocal locking lip and axially reciprocally locks with the second reciprocal locking lip. The closure member according to claim 10. 12. The interlocking ring has a stop lip extending radially inward of the interlocking ring and axially opposite the first interlocking lip. Said sealing means such that said stop lip cooperates with said first interlocking lip to make sealing contact against said container neck when said spout member and cap are received therein. The closure member of claim 11, wherein the closure member blocks the spout member. 13. The closure member has a pull ring that is deflectable between a storage position flush with the cap and a ready-to-use position upright from the cap,
And the rupturable attachment means includes a plurality of circumferentially rupturable rupturable attachments mounted between the pulling ring and the interlocking ring when the pulling ring is in the initial storage position. 13. The closure member of claim 12, having a tab. 14. The pulling ring has a pair of oppositely spaced tabs extending radially outwardly therefrom, the interlocking ring having a pair of oppositely spaced apart tabs. A corresponding pair of oppositely spaced indentations for receiving the tabs, the pair of oppositely spaced tabs having the pair of oppositely spaced tabs when the pulling ring is in the storage position. 14. The closure member of claim 13, wherein the closure member is receivably received within a corresponding pair of oppositely spaced indentations. 15. The closure member of claim 14 wherein said closure means comprises threaded means having a plurality of thread engagement points. 16. A first means for interlocking in the axial direction extends radially inward of the spout member and a first interlocking lip extending radially outward of the neck of the container. A second reciprocal locking lip, the first reciprocal locking lip resiliently deflecting over the second reciprocal locking lip.
Axially interlocking with an interlocking lip, said axially interlocking second means comprising a third interlocking lip extending radially inward of said cap, and said container neck A fourth interlocking lip extending radially outward from the second interlocking lip and axially offset from the second interlocking lip, the third interlocking lip being the fourth interlocking lip. The closure member of claim 1, wherein the closure member resiliently flexes over the lip and axially interlocks with the fourth interlocking lip. 17. The second means for axially interlocking comprises a stop lip extending radially inward of the cap and axially opposite the third interlocking lip. The closure such that the stop lip cooperates with the third interlocking lip to make sealing contact with the container neck when the spout member and cap are received therein. 17. The closure member of claim 16 wherein the closure member is restrained by means. 18. The closure member of claim 1, wherein the container neck is recessed in the container lid and the spout member and cap are received on a container neck that is substantially coplanar with the container lid. 19. The cap has a pull ring that is deflectable between a storage position that is substantially flush with the cap and the container lid and a ready-to-use position upright from the cap and the container lid. 19. The closure member of claim 18, wherein: 20. Further comprising an interlocking ring disposed around the cap for interlocking the cap to the container neck, the interlocking ring substantially comprising the cap and the container neck. 20. In the same plane,
Closure member. 21. The pulling ring has a pair of oppositely spaced tabs extending radially outwardly therefrom, the interlocking ring having a pair of oppositely spaced apart tabs. A corresponding pair of oppositely spaced indentations for receiving the tabs, the pair of oppositely spaced tabs having the pair of oppositely spaced tabs when the pulling ring is in the storage position. 21. The closure member of claim 20, removably received within a corresponding pair of oppositely spaced indentations. 22. A snap-fit tamper-proof closure member, comprising a flexible resilient seal ring adapted to be sealably received on a container neck. The sealing ring has a first interlocking lip which interlocks with a corresponding first interlocking lip of the container neck and is elastically deflectable for fitting into the container neck. A seal ring for closing the spout member, and an interlocking ring adapted to receive a mutual neck of the container neck on the seal ring, A snap-fit cap, the closure member being rupturablely attached to the interlocking ring, the interlocking ring having a second interlocking lip, the lip having a corresponding second portion of the container neck. Mutual lock And a mutual locking ring that is elastically bendable so as to fit in the neck of the container, and the spout member and the cap are received by the neck of the container and independent of the seal ring. A second interlocking lip of the interlocking ring extends below the first interlocking lip of the sealing ring when interlocking to a container neck. Element. 23. The closure member of claim 22, wherein the seal ring has a generally U-shaped cross section. 24. The spout member includes a spout neck, the spout neck disposed within the seal ring and a flexible web, the flexible web including the spout neck and the flexible web. A sealing member is mounted between the seal ring and the seal ring, and the spout member is movable between a storage position in which the spout member is stacked in the seal ring and an upright position in which the spout member stands upright from the seal ring. Clause 22 closure member. 25. A breakable sealing diaphragm having the spout neck sealably mounted across it;
25. The closure member of claim 24, further comprising a tension ring attached to the breakable sealing diaphragm. 26. The spout member has a plurality of ears attached to the flexible web, the ears having the flexible web when the spout member is in a storage position. Downwardly extending from the spout to extend radially inward within the spout member to form a central flow hole and a plurality of peripheral vent openings when the spout member is in the withdrawn position. 25. The cooperating closure member of claim 24. 27. The cap has a pulling ring that is deflectable between a storage position flush with the cap and a ready-to-use position upright from the cap, the pulling ring being the initial ring. 23. The closure member of claim 22, breakably attached to the interlocking ring in the storage position thereof. 28. The pulling ring has a pair of oppositely spaced tabs extending radially outwardly therefrom, the interlocking ring having a pair of oppositely spaced apart tabs. A corresponding pair of oppositely spaced indentations for receiving the tabs, the pair of oppositely spaced tabs having the pair of oppositely spaced tabs when the pulling ring is in the storage position. 28. The closure member of claim 27, wherein the closure member is receivably received within a corresponding pair of oppositely spaced indentations. 29. The reciprocal locking ring has a stop lip axially opposite the second reciprocal locking lip, the spout member and cap being received in a container neck. 23. The closure member of claim 22, wherein the blocking lip cooperates with the second interlocking lip to sealingly contact the container neck to lock the sealing ring when the locking lip is locked. 30. The closure has threaded means on the spout member for its lid, the spout member having corresponding threaded means for receiving the cap. 22 closure members. 31. A closure member comprising: a container neck extending axially from the container and having an inner sealing surface and an outer sealing surface; and a seal ring sealingly received in the container neck. A spout member having, an inner seal ring portion that seals the inner seal surface of the container neck portion, an outer seal ring portion that seals the outer seal surface of the container neck portion, and the inner seal ring A seal ring having a side seal ring portion attached between the portion and the outer seal ring portion and bridging the container neck portion; and the seal ring in the axial direction to the container neck portion. And a stop means for stopping when the inner seal ring portion is forcibly released from the sealing contact with the inner seal surface of the container neck. A pivot for the seal ring is defined to rotate, the seal ring rotating about a stop means for stopping in the axial direction to rotate the outer seal ring portion against an outer seal surface of the container neck. A closure member that increases the sealing contact of the. 32. A stop means for axially stopping the seal ring against the container neck comprises first interlocking lips extending radially outward from the container neck and the container neck with respect to the container neck. An interlocking ring for stopping the seal ring, the stop lip extending inward in the radial direction from the ring, and the second interlocking ring extending inward in the axial direction downward from the stop lip. An interlocking ring having a lip, and the second interlocking interlocking with the first interlocking lip for blocking the seal between the container neck and the blocking lip. 32. The closure member of claim 31, including a locking lip. 33. When the seal ring is rotated,
33. The closure member of claim 32, wherein said lateral seal ring portion has a lip extending radially outwardly therefrom for reacting against said stop lip. 34. A method for assembling a lid to a container neck, which comprises a means for sealing the container neck, and a first means for axially locking the spout member to the container neck so as to fit the container neck. A first means having elastic flexibility to fit together, a closure means for closing the closure means, and a cap for axially interlocking the cap with the container neck. A second means for locking and a second means having elastic flexibility for fitting to the neck of the container; and providing the cap to the spout member. And assembling the cap and the spout member assembly to assemble the cap and spout member assembly to the container neck in the axial direction so that the first means and the second means elastically bend and are independent of each other on the container neck. Assembling method consisting of: 35. In the step of providing a cap, the closing means has means for screwing the cap into the spout member, and in the step of assembling the cap to the spout member, the cap is attached to the spout member. The assembly method according to claim 34, which is a rotary screw-in type.