CN107709180B - Assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container - Google Patents
Assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container Download PDFInfo
- Publication number
- CN107709180B CN107709180B CN201680039074.3A CN201680039074A CN107709180B CN 107709180 B CN107709180 B CN 107709180B CN 201680039074 A CN201680039074 A CN 201680039074A CN 107709180 B CN107709180 B CN 107709180B
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- China
- Prior art keywords
- cap
- neck
- tamper
- evident ring
- assembly
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
- B65D41/3419—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being formed separately but connected to the closure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/38—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt engaging a threaded ring clamped on the external periphery of the neck or wall
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
In order to achieve the above object, the present invention provides an assembly comprising a threaded cap portion (11) and a neck portion (12) for indicating tampering with a container (13), said assembly comprising: a cylindrical neck (12) of a container (13), said neck (12) being provided with a hole at its top end and being threaded on its outer surface, said neck (12) further having a sealing collar (14), the sealing collar (14) comprising a plurality of teeth (15); and a cap portion (11), the cap portion (11) having a cylindrical shape and having a threaded inner surface, the cap portion (11) comprising a tamper-evident ring (16) attached to a lower edge (17) of the cap portion (11), the tamper-evident ring (16) having a diameter larger than the diameter of the cap portion (11). The tamper-evident ring (16) comprises a plurality of invertible grippers (18) longitudinally protruding from a lower edge (17) of the tamper-evident ring (16), wherein the invertible grippers (18) are coupled to the lower edge (17) of the tamper-evident ring (16) by means of a hingeable membrane. At least one of the reversible holders (18) comprises a locking mechanism (22) movably hinged to the holder, wherein when the cap (11) is rotated to close the bottle cap (11), the locking mechanism is moved to a passage position allowing its passage over the teeth (15) of the bottle neck (12), and when the cap (11) is rotated to open the bottle cap (11), the locking mechanism is moved to a locking position not allowing its passage over the teeth (15) of the bottle neck (12).
Description
Technical Field
The present invention relates to an assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container, and more particularly to an assembly comprising a threaded cap portion and a neck portion for indicating that the contents of a container have been accessed by breaking its tamper-evident mechanism.
Background
With the ever increasing demand for products and increasing competitiveness, we have sought to minimize production costs and product distribution logistics.
For many years, for commercial reasons, more and more products have been packaged in disposable packages, which are more guaranteed in terms of maintaining sterility and hygiene, more systematizing the various stages of manufacturing and quality control of the products stored therein, and making the final consumer easier to handle.
The type and form of the packaging depends mainly on the type of product to be stored and the way in which the consumer can use its contents. In the case of liquid products, long-necked bottles and narrow-necked bottles are generally used, whereas for solid, pasty and/or creamy products, cartridges or cans with a cap are used.
In the case of bottles, these packages usually consist of two parts-a container and a lid. A cap is threaded to the bottle to prevent access to its contents, and the cap is moved from the bottle to open the bottle, allowing access to the contents of the bottle.
Two types of bottle cap configurations are commonly used on the market-push type caps and threaded caps. The push-on cap is installed by aligning the cap with the opening of the bottle and simply by applying an axial force at the top of the cap. Threaded caps typically require the cap and bottle to be aligned and a rotational force applied to the cap.
The threaded cap is characterized by the closing and opening operations by opposite rotational (angular) movements, so that in the case of clockwise opening, in the opposite direction-anticlockwise closing, and vice versa. In fact, the thread is an axially moving handling system which makes such closure particularly suitable for providing high closure pressures and, therefore, impermeability necessary for liquid and gas packaging. Therefore, a threaded cap is most suitable for sealing a container or a bottle which must prevent any leakage of liquid and/or gas.
Furthermore, one of the problems associated with injection moulded cap parts relates to the ability of the cap part to indicate that the contents of the container have been tampered with. For this purpose, a mechanism must be established between the cap and the neck of the bottle which enables the user to identify without difficulty that the container has been opened.
In this regard, one way to form a mechanism for verifying that the cap has been opened is to use a tamper evident ring attached to the body of the cap. The tamper-evident ring should comprise means for locking the cap on the neck of the bottle and having a frangible attachment to the cap body, such that upon application of a certain force to open the cap, the ring breaks and allows the cap to open, with the broken ring as a feature showing that the cap is tampered with.
The tamper-evident ring usually locks the cap on the bottle neck by means of teeth in the ring, which interact with external teeth on the outside of the bottle neck, the teeth of the cap and neck being shaped as ramps for sliding over each other only in the closing movement of the cap.
Thus, when the cap portion is screwed onto the neck of the bottle, the ramp portions of the teeth of the cap portion slide on the ramp portions of the corresponding teeth in the neck of the bottle, thus allowing the cap portion to be fully screwed onto the neck of the bottle. However, when the user tries to unscrew the bottle cap with a low to medium pulling force, the stepped portions of the teeth of the bottle cap engage the stepped portions of the corresponding teeth of the bottle neck, thereby preventing unscrewing and opening of the cap.
When a higher level of pulling force is applied to the cap portion in the unscrewing direction, the ring breaks and separates from the cap portion. Thus, the cap portion may be unscrewed from the neck portion and the tamper-evident ring generally remains locked on the neck portion. In this sense, the presence of a tamper-evident ring that is broken on the bottle neck serves as visual evidence that the bottle has been opened.
While the combination of a bottle cap portion with a tamper evident ring and a bottle neck portion with teeth provides an acceptable connection for tamper evidence, this combination is limiting if viewing, access and thus interference with the tooth locking mechanism is possible. In particular, when the cap portion is in the sealing position, the lower end of the tamper-evident ring may be pushed outwards and then upwards towards the top of the bottle cap portion, resulting in a deformation of the cap portion so as to prevent a locking action between the teeth of the bottle cap portion and the bottle neck portion.
In this way, the cap portion may be unscrewed without breaking the tamper-evident ring of the cap portion and without further screwing of the cap portion back into the neck of the bottle. In this case there will be no visual evidence that the cap is screwed and then screwed back into the neck of the bottle. Therefore, in some cases, the current connection between the cap portion and the neck portion with tamper evidence does not provide protection against tampering.
In order to solve the problems found in the safety of detecting tampering of bottle caps, various solutions have been developed and correspond to the state of the art of the present application, which will be discussed below.
Document EP0941938 discloses a bottle cap and neck for an improved tamper-evident bottle. According to this document, the closure portion comprises a circular cap portion, a skirt portion depending from the periphery of the cap portion, and a tamper-evident ring having teeth which engage with a corresponding set of teeth on the neck of the bottle. The skirt portion of the bottle cap portion includes an inner surface having threads for retaining the bottle cap portion on the bottle neck portion and a lower end having a circumferential flange with an outwardly extending semi-circular protrusion. The tamper evident ring is attached to the flange by a frangible connection between a guide extending outwardly from the flange and the ratchet teeth of the tamper evident ring.
The solution proposed in EP0941938 shows a standard configuration of the tamper-evident ring with a higher security, so that the axial displacement of the ring through the bottle neck cannot be achieved by pressing the tamper-evident ring at a specific point, preventing fraud from not showing tampering.
Document US 5115932 discloses a container and a tamper-evident sealing cap therefor, the tamper-evident sealing cap having a cap body and a manually breakable safety band. The container comprises a hollow body provided with an elongated shoulder and terminating in an axially symmetrical neck having an aperture and having on its outer surface a threaded portion allowing screwing of said cap body, the portion provided with teeth for preventing unscrewing, except in the case of rupture of the safety band. The cover portion has: a threaded portion on an inner surface of the cap body; and a non-threaded portion with a safety band, integral with the rest of the cap due to the bridge and internally provided with a groove capable of engaging the teeth.
The solution proposed by US 5115932 shows a standard configuration of such a tamper-evident ring, i.e. having a higher breaking strength when it is sealed on the bottle neck, in order to prevent the tamper-evident ring from breaking when the cap is sealed on the bottle neck.
Document WO2012018994 discloses a tamper-evident cap having a circular closure member, a cylindrical annular wall substantially suspended over the periphery of the closure member, surrounding the base and having a plurality of castellated cuts, and a tamper-evident ring positioned circumferentially around the castellated base and connected to a portion of the base. The tamper-evident ring may be mounted to the base by at least one of the teeth or connected by at least one of the castellated cuts extending below the base. The interior and/or exterior of the cylindrical wall may be reinforced. The tamper-evident ring may have a groove between the teeth for holding the tamper-evident ring on the neck finish. This document also discloses a neck finish having at least one set of teeth and optionally a raised portion to secure the rupture tamper ring in place.
Document US20020096485 discloses the construction of a locking guide for a tamper-evident ring on a twist-on closure for containers for refrigerants and the like. The guide is hinged to the lower edge of the tamper ring and is held in an axial orientation by resilient engagement in a corresponding recess on the inner surface of the underside of the tamper-evident ring. A closure flap hingedly mounted on the inner surface has: a protruding portion that engages the rectangular recess; and positioned to replace the top surface of the post during installation of the closure device. A relatively thin upper portion defines an arcuate cavity and a relatively thick lower portion has an inner surface defining a rectangular recess.
Document PI 0102255-5 discloses a cover comprising a one-piece body injection molded in plastic material and having a cylindrical shape. The body has a first portion in the form of a cylindrical, vertical, externally located skirt with a non-slip surface, while it internally comprises a suitable thread interrupted by a portion adapted to release pressure in the case of a bottle of the type containing any gasified liquid to be closed with the present cap. The upper end of the cylindrical skirt is completely closed by a circular wall, the cylindrical skirt including an internal seal therein, while the lower end of the cylindrical skirt has an equivalent circular extension containing a tamper-evident ring removably integrated in said skirt and separated from the latter by means of a circular cutting line interrupted by a stretch constituting a bridge or breakable link. A set of locking elements is moulded directly onto the vertical wall portion of the body of the tamper-evident ring, for which purpose said vertical wall portion or circular wall portion is distributed with a number of quadrangular windows, wherein each locking piece is flexibly integrated and is inwardly inclined or encroached according to a mating angle into the inner diameter of the ring, so that the free end of said locking piece is located below the corresponding lower corner of the collar of any flask.
Thus, now, despite the tremendous impetus and technological development in the art and the great demand for cap parts, plastic injection systems are not able to configure mechanisms inside the cap parts, such as grippers, jaws, or any other feature that ensures the tamper-evidence of the container when sealed by the cap part. Therefore, it is not guaranteed to the consumer that the contents of the container correspond to the contents of the original package.
There is relatively little precision in the configuration of tamper-evident rings in which the ring is sensitive to axial movement of the cap relative to the bottle, so they cannot distinguish and sequence events, i.e. tearing and opening.
Furthermore, for configurations where the tamper evident ring is sensitive to rotational movement of the cap portion and the locking mechanism is visible and accessible, a user may access the bottle contents by means of fraudulent techniques without destroying the tamper evident ring.
A user familiar with the configuration of the tamper-evident ring can utilize the deformability of the ring to compress around the ring so that the applied pressure allows the teeth of the ring to pass through the teeth of the bottle neck, even in a position opposite to the sealing position. In this manner, the user may repeat the process multiple times until the ring is completely unscrewed from the cap without any indication of rupture. This would allow the user to access the contents of the container without any evidence of tampering with the container, thereby compromising the overall safety of the device.
While there are several known techniques that attempt to address the technical problem of tamper detection in threaded containers, particularly threaded bottles, there is no technique that can ensure that the bottle contents are protected from tampering until the tamper-evident ring is broken.
In view of the existing limitations of the prior art, a malicious person may enter the interior of a so-called sealed bottle or container to extract liquid from the interior of the container and introduce any new liquid without leaving any indication that the container or bottle has been tampered with.
There is therefore a need for a container and cap assembly in which the cap has a tamper-evident ring and a mechanism that prevents any access to the contents of the bottle through the cap without tampering with the tamper-evident ring of the cap, thereby ensuring the integrity of the container contents.
Disclosure of Invention
It is an object of the present invention to provide an assembly of a container comprising a threaded cap and a neck, wherein the cap has a seal to prevent any access to the contents of the bottle through the cap without breaking the cap seal, thereby ensuring the integrity of the container contents.
It is a further object of the present invention to provide an assembly of a container comprising a threaded cap portion and a neck portion, said assembly comprising a seal which is not easily removable from the cap portion after rupture and which cannot be replaced or repaired by a user attempting to conceal tampering with the container.
Another object of the present invention is to provide a container and cap assembly which is able to indicate to any user in a clear manner and without any possibility of disguising that its seal is broken and that the container contents are thus accessed.
It is a further object of the present invention to provide a container and cap assembly capable of indicating cap rupture which is relatively simple and can be modified to be manufactured on an industrial scale so that the assembly is economically feasible and suitable for use in the form of a plurality of threaded container and cap assemblies.
In order to achieve the above object, the present invention provides an assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container, the assembly comprising a neck portion and a cap portion of a container, the neck portion of the container having a cylindrical shape, the neck portion having threads on an outer surface thereof and the neck portion having a sealing collar comprising a plurality of teeth, the cap portion having a cylindrical threaded portion and having threads on an inner surface thereof, the cap portion comprising a tamper-evident ring attached to a lower edge of the cap portion, the tamper-evident ring having a diameter larger than the cap portion. The tamper-evident ring includes a plurality of invertible grippers extending longitudinally from the tamper-evident ring, wherein the invertible grippers are coupled to a lower edge of the tamper-evident ring by means of a hingeable membrane. At least one of the reversible holders comprises a locking mechanism hingeable with respect to the holder, wherein the locking mechanism swings to a passage position allowing its passage over the teeth of the bottle neck when the cap is turned in a direction closing the cap on the bottle, and swings to a locking position not allowing its passage over the teeth of the bottle neck when the cap is turned in a direction opening the cap on the bottle.
Drawings
The detailed description is given below with reference to the accompanying drawings, in which:
fig. 1 shows a cross-sectional view of a prior art threaded cap portion configuration that can be tampered with by fraudulent techniques without breaking the tamper-evident ring. According to this figure, an "F" force may be applied near the "E" recess, such that compression near where this force is applied will increase the distance "d" between the cap and the neck to such an extent that the teeth of the cap may pass the teeth of the neck, even during the opening movement of the cap. Thus, if the process is repeated for each tooth locking during the bottle opening movement, the cap portion can be opened without breaking the tamper-evident ring.
Fig. 2 shows a perspective view of an assembly comprising a threaded cap and a neck, wherein the characteristics of the axial and rotational displacement of the threaded cap are analyzed, according to a preferred embodiment of the present invention;
fig. 3 shows a perspective view of an assembly comprising a threaded cap and a neck according to a preferred embodiment of the invention, wherein numerical examples of features of axial and rotational displacement of the threaded cap are shown;
FIG. 4 shows a top perspective view of the threaded cap according to a preferred embodiment of the present invention, with the cap in its rest or installed position;
FIG. 5 shows a bottom perspective view of the threaded cover portion according to a preferred embodiment of the present invention, with the cover portion in its rest or installed position;
figures 6 and 7 show a plurality of threaded cap portions of the invention stacked on one another;
figures 8 and 9 show a plurality of threaded cap portions of the invention on top of each other, wherein the cap portions are guided by guide tubes;
FIGS. 10, 11 and 12 show perspective views of a threaded cap portion according to a preferred embodiment of the present invention, showing the process of inverting the invertible holder by means of an external tool;
FIG. 13 shows a bottom perspective view of the threaded cap portion according to the preferred embodiment of the present invention, with the cap portion in its armed, finished state, i.e., with the holder fully inverted into the cap portion;
fig. 14 shows a perspective view of an assembly comprising a threaded cap and a neck according to a preferred embodiment of the present invention, wherein the cap is shown coupled to the bottle neck.
FIG. 15 shows a configuration of an invertible holder including a locking mechanism according to a preferred embodiment of the present invention;
fig. 16 shows a cross-sectional view of an assembly comprising a threaded cap and a neck according to a preferred embodiment of the invention, wherein the effect of the locking element during rotation of the cap can be observed;
fig. 17 shows a cross-sectional view of an assembly comprising a threaded cap portion and a neck portion, wherein the bottle neck portion has more teeth to provide less tolerance for movement during rupture of the tamper-evident ring, according to an alternative embodiment of the present invention.
Detailed Description
The following description will start with preferred embodiments of the invention applied to the assembly of a container, in particular a plastic bottle, comprising a cap and a neck. However, it will be apparent to those skilled in the art that the present invention is not limited to this particular embodiment, but may be used in a wide variety of threaded containers to ensure the non-tamperproof properties of the container contents.
In accordance with the present invention, an assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container is disclosed. The assembly includes a container neck having a cylindrical shape and a bore at an upper end of the container neck, threads on an outer surface of the neck and the neck having a sealing collar, wherein the sealing collar includes a plurality of teeth. The assembly further includes a cap portion having a cylindrical shape and threads on an inner surface of the cap portion, the cap portion including a tamper-evident ring coupled to a lower edge of the cap portion, wherein a diameter of the tamper-evident ring is greater than a diameter of the cap portion.
Fig. 2 shows an assembly comprising a threaded cap 11 and a container neck 12, wherein the performance of the tamper-evident ring 16 was investigated on the basis of an example with numerical values.
The closure of the cap 11 on the neck 12 of the container 13 is completed when the sealing point, which is the minimum screwing point of the cap 11 on the neck 12 of the container 13 necessary to prevent the exchange or leakage of the fluid inside the container 13, is reached. In order to provide additional security, additional rotational angles and additional axial displacements are usually added based on the sealing point, so that a saturation point is reached, at which it is no longer possible to move the cover 11 in the closing direction without causing deformation. The additional rotation angle is referred to as "final tightening", which requires a larger torque than that required to reach the sealing point, thus ensuring a safety margin.
When the cover 11 is turned in the opening direction, starting from the saturation point, there is initially a strong pressure which gradually decreases in the range of about the next 20 ° until the liquid and the gas start to pass. The moment at which the passage of liquid and gas starts is defined as the opening point, which is approximately in the range of the first 20 °.
According to fig. 2, the distance between the windings of the neck 12 of the container 13 is 1.8 mm. Correspondingly, each 360 ° rotation of the cap 11 on the neck 12 corresponds to one turn and a resulting axial displacement of 1.8mm, or one tenth of a millimeter per 20 ° rotation. By coupling the tamper evident ring 16 to the cap portion 11 of the container 13 to be broken by opening the cap portion 11, a breaking point must be defined, which is a limiting point for the breaking of the tamper evident ring 16 caused by the rotation of the cap portion 11 in the opening direction. The point of rupture may be sensitive to axial displacement of the cover 11 or angular displacement of the cover 11.
In order to set the breaking point before the opening point, means must be established to sense them and to set them in the desired order, with an accuracy equal to or greater than the order of the breaking point and the opening point. Thus, applications having a tamper-evident ring 16 sensitive to axial movement of the cap portion 11 tend not to have the precision required to ensure that there is no fluid interchange between the container 13 and the external device before the ring is broken.
Fig. 3 shows the situation of fig. 2 in more detail, wherein the threaded cap 11 has a radius of 15.0mm and a circumference of 94.25 mm. Based on these data, it can be observed that there is a 52.36 to 1 ratio between the circumferential length of the cap 11 traveled by the rotational movement of the cap 11 and the axial displacement of the cap 11 in the neck 12.
Thus, it can be concluded that configuring the tamper-evident ring 16 to provide a 50 times greater accuracy in response to rotational movement of the cap portion 11 than standard usage that is sensitive to axial movement. Thus, all embodiments of the present invention utilize a tamper evident ring 16 that is responsive to rotational movement of the cap portion 11 relative to the bottle neck portion 12.
However, as described above, even with the configuration of the cap portion 11 having the tamper-evident ring 16 that is sensitive to rotational movement of the cap portion 11, it is possible to access the contents of the container 13 without leaving any evidence of tampering.
In view of this, the present invention proposes that the sealing mechanism of the tamper evident ring 16 and its point of rupture be inaccessible to the user so as to provide security against attempted fraud.
Fig. 4 shows a preferred embodiment of the threaded cap portion 11 of the present invention, where the cylindrical body of the cap portion 11 and its lower edge can be observed, which is connected to a tamper-evident ring 16 having a diameter larger than the diameter of the cap portion 11. The tamper-evident ring 16 is attached to the body of the cap portion 11 by a frangible bond enabling the ring and cap portion 11 to be broken and thus separated. There is no gap between the cover 11 and the ring and any radial pressure directed and/or directed will cause rupture and thus separation.
The tamper-evident ring 16 includes a plurality of invertible grippers 18 extending longitudinally from the tamper-evident ring 16, wherein the invertible grippers 18 are coupled to the tamper-evident ring by a hingeable membrane. Thus, by applying a force on the outside of the invertible gripper 18, the gripper will invert into the tamper-evident ring 16. This turning of the gripper is achieved by means of a tool capable of exerting a force on the upper part of the gripper.
According to a preferred embodiment, each reversible gripper 18 comprises a set of fins 19 and one jaw 20, the fins 19 and the jaws 20 being molded in one piece, wherein the fins 19 are coupled to the hingeable membrane 10 of the tamper-evident ring 16 and the jaws 20 protrude downwards from the fins 19.
Fig. 5 shows a bottom perspective view of the cover part 11 of the preferred embodiment of the present invention. According to fig. 5, the fins 19 are triangular in shape, with a circular base; the jaws 20 are parallelepiped-shaped with an inclined lower surface, forming the tips of the jaws. The fins 19 define, together with the jaws 20, a substantially "T" shaped holder.
The inner surface of the tamper evident ring 16 comprises a groove 26, the shape of the groove 26 being correspondingly shaped to accommodate the invertible gripper 18 when the invertible gripper 18 is in its inverted position, which provides additional strength to the attachment of the membrane to the gripper and thus to the system in the rotational movement. In addition, the lower edge of the tamper-evident ring 16 is beveled to better accommodate the fins 19 when the holder 18 is in the flipped position.
The configuration of the reversible holder 18 of the cover part 11 can be seen in detail in fig. 5. The body of the cover 11 and the gripper 18 are configured in a precisely determined position, distance and angle, and the assembly is also designed to have the following unique features for a series of actions before and in preparation for assembly: the simple movement of the body of the cover 11 and the strategically repositioned grippers are combined to screw the cover 11 to the container 13. The holder 18 is attached to the body of the cap portion 11 by the diaphragm 10, the diaphragm 10 being positioned laterally at a point through which the axis perpendicular to the diaphragm passes and is tangential to the body of the cap portion 11, the holder rotating about the point to engage a locating seat on the inner wall of the tamper-evident ring 16.
The membrane 10 has a wide, flat cross-section, which guides and constrains the joint to a path perpendicular to the groove at the location of the transversely open groove. The track of the gripper 18 lies in a plane containing the axis of the cover 11. The configuration of the membrane tangent to the body of the cover 11, coinciding with the transversal groove, and attaching the gripper to the body of the cover 11, limits the rotation path of the gripper to a plane perpendicular to the tangent and guides the gripper precisely to the seat.
It is important to note that a number of other fin and jaw configurations may be combined to form the reversible clamp 18 required by the present invention, wherein it will be apparent to those skilled in the art that the shape of the fins and jaws may be greatly modified to suit the actual needs of use and/or production.
Optionally, the fins are parallelepiped-shaped with a circular upper surface; while the jaws have a parallelepiped shape with or without an inclined lower surface. Optionally, the shape of the jaws is triangular.
Alternatively, the reversible gripper 18 is constituted by a triangular jaw which is directly connected to the edge of the tamper-evident ring 16 by the hingeable membrane 10.
The threaded cap portion 11 of the present invention is further advantageous as it is suitable for mass production. Fig. 6 shows a plurality of cover parts 11 stacked on top of each other. The cover parts 11 are placed one fitting over the other, keeping their vulnerable parts unaffected and thus avoiding deformation during storage and transport. The stacked cap portions 11 perform similarly to the backbone and have smooth windings as spirals to increase the amount of dispensing in a reduced space. This facilitates all transport logistics and storage of the cover part 11.
Fig. 7 also shows an alternative embodiment, in which the tubes are transported by means of guide tubes. The use of the tube prevents deformation during storage and transportation, which facilitates the dispensing supply of the cap 11 by simple tube-like engagement.
Fig. 8 and 9 show the cover 11 in a form produced by moulding, this being referred to as the mounting or rest position. From this rest position, the cap 11 will be ready for coupling with the bottle neck 12. According to a preferred embodiment of the invention, the cap portion 11 may engage the container neck 12 by partially inverting the gripper 18 towards the interior of the tamper-evident ring 16, said inverting being performed by a suitable tool.
Fig. 10 to 12 show in a simple manner the process of turning over the gripper 18 of the cover part 11, which is not the object of the invention. Initially, the gripper is turned out of the cover 11, forming a rest or mounting position, as shown in fig. 10. In this position, the lower tool ring contacts the upper part of the holder 18 by positioning the tool on the cover 11. When the tool is pressed against the fin 19, the hingeable membrane 10 of the fin 19 allows the gripper to pivot towards the tamper evident ring 16, as shown in fig. 11. As the holder 18 moves towards the inside of the ring, the arcuate end of the tool slides along the upper surface of the holder 18 until the holder flips into the inside of the cover 11, forming an arcuate position as shown in fig. 12.
Fig. 13 shows the cover portion 11 with the invertible holder 18 fully inverted and received within the tamper-evident ring 16, thereby configuring a locked position of the cover portion 11. It may be noted that there is a depression 29 at the end of the gripper 18 opposite the cover portion prior to the inversion caused by the configuration of the fins 19 and jaws 20 of the preferred embodiment of the invention. This recess 29 constitutes an outer ring on the cap portion 11 in the locked configuration, which provides additional security to the system in that it prevents the locking mechanism of the tamper evident ring 16 from being revealed and into the tamper evident ring 16.
During the armed state, the cap 11 is ready to engage on the neck 12 of the container 13, and axial movement of the cap 11 on the neck 12 towards the container 13 causes the upper ring of the neck 12, i.e. the mouth piece of the container 13, to contact the gripper 18 in the armed state and to push the gripper 18 further into the interior of the cap 11. From a certain point on, the axial displacement of the cap 11 against the neck 12 should be achieved by a rotational movement of the cap 11 on the neck 12 of the container 13, since the windings of the neck 12 come into contact with the cap 11 of the container 13. When the rotational movement of the cap 11 on the bottle neck 12 is completed, the gripper will be completely flipped into the tamper-evident ring 16.
Fig. 14 shows an assembly comprising a threaded cap 11 and a neck 12 according to a preferred embodiment of the invention. It will be appreciated that after the cap 11 is coupled to the bottle neck 12, the reversible gripper 18 is confined between the cap 11 and the bottle neck 12, hidden from and difficult to access by an external user.
Optionally, the neck 12 of the container 13 comprises an annular seal 27 at the bottom of its locking ring. The diameter of the annular seal 27 is large enough to accommodate the edge formed by the tamper-evident ring 16 in its locked position, so that contact of the edge of the tamper-evident ring 16 with the annular seal 27 of the neck 12 of the container prevents the tamper-evident ring 16 from appearing, let alone entering the inside of the tamper-evident ring 16.
Since the cap 11 is coupled to the neck 12 of the container 13, a locking position is formed in which there should be a mechanism for locking the cap 11 on the container neck 12, which should be able to prevent the reverse of the above-described process from being performed, i.e., to detach the cap 11 from the neck 12 of the container. The cap portion 11 can only be detached by breaking the tamper evident ring 16. Moreover, the mechanism will continue to lock the tamper-evident ring 16 on the container neck 12 without impeding the opening and closing of the cap 11, but its presence will indicate that the container 13 has been opened and will prevent any type of fraud.
In the case of using beveled teeth 15 as in the prior art, a technician familiar with cap portion 11 may fraudulently tamper with tamper-evident ring 16 even if it is flipped inside tamper-evident ring 16.
Between the tamper-evident ring 16 and the neck 12 of the container 13 there is the necessary clearance to enable the rotary closing movement of the corresponding protrusions (teeth, ramps). When a pulling force is applied in the direction of rotation of the opening, the gap, which is distributed along the ring, will also be along any set of three teeth 15 of the tamper evident ring 16 before the teeth 15 are at their minimum distance. In this way, a fraudster may press on the front and rear semicircles to deform the front and rear semicircles, a decrease in the gap at positions before and after the teeth during deformation will result in an increase in the gap at the teeth, thereby creating a "bump" that will allow the teeth of the ring to extend beyond the corresponding teeth of the neck 12.
If this step is repeated a number of times, it is possible to have the teeth 15 of the neck 12 of the container 13 ride over all the teeth 15 or ramps of the tamper-evident ring 16 and thus remove the cap portion 11 without breaking the ring 16.
Fig. 1 illustrates the limitations of the prior art with respect to this type of fraud that is susceptible to the proposed solution using only ramp-like teeth 15. Although the reversible gripper 18 makes this process difficult, the user can still apply the steps if she or he knows the mechanism, or even through trial and error.
The present invention therefore proposes an innovative locking mechanism 22 capable of solving the drawbacks of the known solutions. The mechanism 22 proposed by the present invention for locking the tamper-evident ring 16 can be seen in fig. 15-17, in which each reversible gripper 18 comprises a locking mechanism 22 pivotable relative to the lateral ends of its jaws 20. The locking mechanism is shown in further detail in fig. 15.
FIG. 15 illustrates a locking mechanism according to a preferred embodiment of the present invention; the locking mechanism 22 comprises a tab which is coupled to the jaws 20 of the gripper 18 by means of a flexible membrane 24, wherein the length of the tab is slightly shorter than the length of the jaws 20 and the tab has a diamond-shaped cross-section.
Optionally, for better accommodation of the invertible gripper in the tamper-evident ring 16, the jaw 20 further comprises an extension 25 at its lateral end, and wherein the locking mechanism 22 comprises a flap coupled to the extension 25 of the jaw 20 by means of a flexible membrane 24.
The locking mechanism serves to prevent the cap portion 11 from being unscrewed from the container 13 without tearing the tamper evident ring 16. The coupling by means of the flexible film 24 allows the locking mechanism 22, which has a passage position and a locking position as its hinged ends, to be hinged with respect to the jaws 20.
Fig. 16 shows a cross-sectional view of the cap 11 coupled to the neck 12 of the container 13, wherein the action of the locking mechanism 22 of each flip-flop clamp 18 can be observed. The inner red arrow indicates that the container neck 12 does not undergo any rotational movement. The outer red arrow indicates the rotation direction for closing the cover part 11 in a counter clockwise direction.
As shown, when the cap 11 is rotated in a direction to close the cap 11 in the container, contact of the locking mechanism 22 with the neck 12 of the container 13 causes the locking mechanism 22 to pivot to a passage position allowing its passage over the teeth 15 of the neck 12 of the container 13. On the other hand, when the cap 11 is rotated in a direction to open the cap 11 in the container 13, the contact of the locking mechanism 22 with the neck 12 of the container 13 causes the locking mechanism 22 to pivot to a locking position that does not allow its passage over the ratchet teeth 15 of the neck 12 of the container 13.
It is important to note that a variety of other locking mechanism configurations can be used to effect the desired one-way locking of the present invention, wherein it will be apparent to those skilled in the art that the shape of the tab can be greatly modified to suit actual production needs.
Optionally, the locking mechanism 22 comprises a flap coupled to the jaws 20 of the cover 11 by means of a flexible membrane 24, wherein the length of the flap is slightly shorter than the length of the jaws 20 and the flap has a triangular cross-section.
Although in the embodiment shown in fig. 15 and 16 all invertable grippers 18 have locking mechanisms 22 engaged at their lateral ends, the invention may also require only one locking mechanism 22 to achieve the proposed solution. Thus, it is possible that only one reversible gripper 18 has a pivoting locking mechanism 22 at its lateral end, while the other gripper 18 can only be reversed into the tamper-evident ring 16.
In addition, the number of teeth 15 in the sealing collar 14 of the neck 12 may be varied to reduce the tolerance of movement before the tamper-evident ring 16 breaks. The number of teeth 15 of the sealing collar 14 of the container 13 will define the tolerance angle between the saturation point and the rupture point of the tamper evident ring 16.
According to a preferred embodiment of the present invention, tamper evident ring 16 has eighteen invertible holders 18 with locking mechanisms 22, and collar 14 of neck 12 has eighteen teeth 15. As already described, the cover 11 rotates in the opening direction, starting from the saturation point, initially with a strong pulling force which gradually decreases in the range of about the next 20 ° until the liquid and gas start to pass. The opening point is approximately the initial 20. The tolerance of 20 ° is defined by the number of teeth 15 of the sealing collar 14 of the neck 12 of the container 13.
FIG. 17 shows an alternative embodiment in which the tamper evident ring 16 has eighteen invertible holders 18 with locking mechanisms 22 and the sealing collar 14 of the neck 12 has thirty-six teeth 15. In this case, the tolerance of the tamper evident ring 16 would be 10 °, 10 ° being defined by dividing 360 ° by thirty-six teeth 15. In this sense, eighteen is a submultiple of thirty-six, and therefore all the swing blade portions overlap the teeth 15.
It is important to note that any number of locking mechanisms 22 and teeth 15 on collar 14 may be used to achieve the desired one-way locking of the present invention, and it will be apparent to those skilled in the art that the number of teeth 15 is greatly modified to achieve the desired tolerance.
If a lower tolerance is required, the number of teeth 15 on the collar 14 and the number of locking mechanisms 22 can be made to have a submultiple of each other. For example, for the case where the number of teeth 15 of the sealing collar 14 is equal to 99 and the number of locking mechanisms 22 is equal to 18, these numbers are not reciprocal, 32Is the common maximum divisor of 18 and 99, which means that the teeth 15 of the locking mechanism 22 and the sealing collar 14 of the neck 12 will always coincide at 9 points. However, 18 cannot be divided exactly by 11-11 being a submultiple of 99, so the tolerance will be limited by dividing 360 by 11x18And is also defined by:
It can be seen that the tolerances obtained in the above examples are on the order of microns and such low values are not actually required. The purpose of this example is to illustrate that there are features for obtaining the most varied tolerances and therefore the most varied precision by varying the number of locking mechanisms 22 and the number of teeth 15 of the sealing collar 14 of the neck 12.
The present invention thus solves the technical problem related to fraud of the tamper evident mechanism of the assembly consisting of the cap 11 and the neck 12 of the container 13. The proposed invention provides an assembly of a threaded cap portion 11 and a neck portion 12 with a security mechanism in the form of a tamper-evident ring 16 that will break to indicate tampering before any fluid exchange between the container and the external environment is likely to occur.
The use of a locking device that changes its configuration according to the direction of the rotary movement allows the configuration of the invention to reach an inviolable level that has not been reached in the prior art.
First, a study was made of the tamper evident ring 16, wherein it was shown that the ring should have a tearing mechanism sensitive to axial or rotational movement of the cap portion 11 relative to the neck portion 12 of the container 13. It has been shown that a tearing mechanism sensitive to the rotary movement allows a greater precision in defining the sealing, breaking and saturation points, thus ensuring greater safety during opening of the lid 11, without exchange of the fluid inside the container 13 before the tamper evident ring 16 breaks.
The tamper-evident ring construction 16 has then proved to be sensitive to tampering by a malicious user, who may apply stress to deform the ring, thereby creating a gap between the thread of the ring and the lid portion winding 11, until the lid portion 11 can be moved axially upwards, which allows removal of the lid portion 11 without tearing the tamper-evident ring 16.
As a solution, the use of a reversible holder 18 for the inner side of the cap 11 when the cap 11 is sealed on the neck 12 of the container 13 has been described. This configuration allows the tear mechanism of the tamper evident ring 16 to be inaccessible and hidden from the user after it is sealed to the neck 12 of the container 13. This configuration prevents the tear mechanism of tamper evident ring 16 from being exposed and accessed, thereby making any attempt to tamper with the ring difficult.
Finally, it is described that even if the tear-off mechanism is sensitive to rotational movement, and even if it is flipped into the tamper-evident ring 16, one can tamper with the mechanism by applying force to cause precise deformation at certain points of the tamper-evident ring 16.
To overcome this problem, the invention features a tamper-evident ring 16 with a hinged locking mechanism 22, which assumes different configurations in the opening and closing movement of the cap 11 on the neck 12 of the container 13. During the closing movement of the cap 11, the locking mechanism is configured to provide a gap that can allow the mechanism to pass over the teeth 15 of the neck 12 of the container 13. However, during the opening movement of the cap 11, the locking mechanism 22 is configured such that there is no gap between the locking mechanism 22 and the teeth 15 of the neck 12, and there is no possibility that the locking mechanism 22 passes the teeth 15 of the neck 12 of the container 13 even by applying a small deformation to the cap 11.
Moreover, the present invention is advantageous in that its shape allows it to be molded as a simple one-piece molded article with low production costs, and facilitates mass production. The assembly of threaded cap 11 and neck 12 proposed by the present invention thus becomes economically feasible and suitable for mass production in various industrial facilities for producing sealed containers 13.
Numerous variations are possible within the scope of the present application. The assembly of the threaded cap 11 and neck 12 of the present invention has particular utility for containers 13 for storing liquids, such as beverage bottles and cleaning products.
However, the assembly of cap 11 and threaded neck 12 of the present invention may be used to seal any container 13 for which the integrity of the contents must be ensured. Therefore, it should be emphasized that the present invention is not limited to the specific configurations/embodiments described above.
Claims (12)
1. An assembly comprising a threaded cap portion (11) and a neck portion (12) for indicating tampering with a container (13), the assembly comprising:
a neck (12) of a container (13), the neck having a cylindrical shape and a bore, the neck (12) being threaded on its outer surface and the neck (12) having a sealing collar (14), wherein the collar (14) comprises a plurality of teeth (15); and
a cap portion (11) with a threaded portion, the cap portion having a cylindrical shape and being threaded on an inner surface thereof, the cap portion (11) comprising a tamper-evident ring (16) coupled to a lower edge of the cap portion (11), wherein the tamper-evident ring (16) has a larger diameter than the cap portion (11),
wherein the tamper-evident ring (16) comprises a plurality of invertible grippers (18) protruding longitudinally from the tamper-evident ring (16), wherein the invertible grippers (18) are coupled to a lower edge (17) of the tamper-evident ring (16) by means of a hingeable membrane (10),
the assembly is characterized in that at least one of the invertible grippers (18) comprises a locking mechanism (22) that is articulable relative to the gripper, wherein:
the hingeable locking mechanism (22) comprises a flap attached to the reversible gripper (18) of the cover part (11) by means of a flexible membrane (24),
the shape of the fin is formed as: during the rotational movement of the cap (11) in the direction of closing on the container, the flaps are hinged with respect to the flexible membrane (24) in a passage position allowing the flaps to pass over the teeth (15) of the neck (12) of the container; and during the rotational movement of the cap (11) in the direction of opening on the container, the tab is hinged with respect to the flexible membrane (24) in a locking position that does not allow the tab to pass over the tooth (15) of the neck (12) of the container.
2. The assembly comprising a threaded cap portion (11) and a neck portion (12) according to claim 1, wherein each of the invertible grippers (18) comprises an assembly of a fin (19) and a jaw (20), wherein the fin (19) is coupled to the hingeable membrane (10) of the tamper-evident ring (16) and the jaw (20) protrudes downwards from the fin (19).
3. Assembly comprising a threaded cap (11) and a neck (12) according to claim 2, characterized in that the fin (19) has a triangular shape with a circular base and the jaws (20) have a parallelepiped shape with inclined lower surfaces, wherein the coupling of the fin (19) with the jaws (20) defines a substantially "T" shaped gripper.
4. Assembly comprising a threaded cap (11) and a neck (12) according to claim 2, characterized in that the flaps coupled to the jaws (20) of the cap (11) have a rhombic cross-section.
5. Assembly comprising a threaded cap (11) and a neck (12) according to claim 2, wherein the jaw (20) further comprises an extension (25) at its lateral end, and wherein the locking mechanism (22) comprises a flap coupled to the extension (25) of the jaw (20) by means of the flexible membrane (24).
6. Assembly comprising a threaded cap portion (11) and a neck portion (12) according to any one of claims 1 to 5, wherein the inner surface of the tamper evident ring (16) comprises a groove (26) adapted to accommodate the invertible holder (18) when the invertible holder is in its inverted position.
7. Assembly comprising a threaded cap part (11) and a neck part (12) according to any one of claims 1-5, wherein the tamper-evident ring (16) is coupled to the lower edge of the cap part (11) by a frangible connection, wherein the tamper-evident ring (16) breaks and the tamper-evident ring (16) is broken from the cap part (11) when the rotational movement of the cap part (11) in the opening direction exceeds a force threshold.
8. Assembly comprising a threaded cap (11) and a neck (12) according to claim 7, wherein the tamper-evident ring (16) remains in the locked position even after being torn and disconnected from the cap (11).
9. Assembly comprising a threaded cap (11) and a neck (12) according to any one of claims 1 to 5, wherein the neck (12) further comprises an annular seal (27) in a bottom portion of the sealing collar (14).
10. The assembly of any one of claims 1 to 5, comprising a threaded cap (11) and a neck (12), wherein the invertible holder (18) comprises a recess (29) at an end of the invertible holder (18) opposite the cap (11), wherein the recess of the holder forms an outer edge on the cap (11) when the holder (18) is inverted into the cap.
11. Assembly comprising a threaded cap portion (11) and a neck portion (12) according to any one of claims 1 to 5, characterized in that the sealing collar (14) of the neck portion (12) comprises 18 of said teeth (15) and the tamper evident ring (16) comprises 18 of said invertible grippers (18).
12. Assembly comprising a threaded cap portion (11) and a neck portion (12) according to any one of claims 1 to 5, characterized in that the sealing collar (14) of the neck portion (12) comprises 18 of said teeth (15) and the tamper evident ring (16) comprises 36 of said invertible grippers (18).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102015029873-0A BR102015029873B1 (en) | 2015-11-27 | 2015-11-27 | THREADED COVER AND BOTTLE ASSEMBLY TO EVIDENCE VIOLATION IN CONTAINERS |
| BRBR1020150298730 | 2015-11-27 | ||
| PCT/BR2016/050076 WO2017088036A1 (en) | 2015-11-27 | 2016-04-06 | Tamper-indicating assembly of threaded closure and neck for containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107709180A CN107709180A (en) | 2018-02-16 |
| CN107709180B true CN107709180B (en) | 2020-05-12 |
Family
ID=56406681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680039074.3A Expired - Fee Related CN107709180B (en) | 2015-11-27 | 2016-04-06 | Assembly comprising a threaded cap portion and a neck portion for indicating tampering with a container |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180334294A1 (en) |
| CN (1) | CN107709180B (en) |
| BR (1) | BR102015029873B1 (en) |
| HK (1) | HK1250229A1 (en) |
| WO (1) | WO2017088036A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019036066A1 (en) * | 2017-08-16 | 2019-02-21 | Decker Cary Allen | Universal protective cap for camera lenses and other tubular-shaped objects |
| TWI824066B (en) | 2019-06-14 | 2023-12-01 | 周立男 | A case and a method for protecting a pearl, and an apparatus for encasing a pearl |
| CN111557534B (en) * | 2020-06-30 | 2022-03-08 | 重庆工业职业技术学院 | Briefcase for finance |
| CN113772259B (en) * | 2021-10-19 | 2024-08-27 | 程姜仁 | Multifunctional safety bottle cap and use method thereof |
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2016
- 2016-04-06 US US15/779,493 patent/US20180334294A1/en not_active Abandoned
- 2016-04-06 CN CN201680039074.3A patent/CN107709180B/en not_active Expired - Fee Related
- 2016-04-06 WO PCT/BR2016/050076 patent/WO2017088036A1/en active Application Filing
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| CN103079965A (en) * | 2010-09-07 | 2013-05-01 | 佩触包装公司 | A package closure and a device and a method for producing a package closure |
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| CN105050904A (en) * | 2013-03-18 | 2015-11-11 | 菲利普莫里斯生产公司 | Tamper evident container |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180334294A1 (en) | 2018-11-22 |
| BR102015029873A2 (en) | 2016-07-19 |
| BR102015029873B1 (en) | 2018-06-19 |
| WO2017088036A1 (en) | 2017-06-01 |
| HK1250229A1 (en) | 2018-12-07 |
| CN107709180A (en) | 2018-02-16 |
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