MXPA04010388A

MXPA04010388A - Safety closure for bottles.

Info

Publication number: MXPA04010388A
Application number: MXPA04010388A
Authority: MX
Inventors: Garcia Riba Jordi
Original assignee: Plastivit Sa
Priority date: 2003-10-24
Filing date: 2004-10-21
Publication date: 2005-07-05
Also published as: EP1526086B1; CN1616312A; RU2344059C2; EP1526086A2; EP1526086A3; RU2004131508A; BRPI0404551A; BRPI0404551B1

Abstract

The invention provides the constitution of the cap-tube (1) with an external structure capable of optionally receiving a breakable over-cap (4), a non-breakable over-cap with a separable sealing band and an engaging metal over-cap (33), the cap-tube having for this purpose, on its external periphery, in succession from the upper portion to its intermediate step, a longitudinal groove capable of engaging with crimping of the metal over-cap, a peripheral rib (8) capable of engaging with partial sectors of the over-cap and with crimping of the metal over-cap, and a second peripheral rib couplable to a mating rib of the over-cap of a removable type, numerous exterior projections intended to mate with internal reliefs of the sealing band being located in the region of the cap-tube between the two external ribs.

Description

SAFETY PLUGS FOR BOTTLES DESCRIPTIVE MEMORY The present invention is intended to provide safety caps for bottles by means of which sensible advantages are obtained with respect to those currently known, especially functional and manufacturing advantages of the stopper. A main objective of the present invention is to achieve a new concept of modularity in the safety caps for bottles by means of which, thanks to the specific design characteristics provided in the present invention, the manufacture of a wide range of bottle caps is possible. security based on the same essential basic elements introducing in them only some specific variants. Essentially, the present invention is based on obtaining with the same external element, usually referred to as a tubular lid or "lid-tube", multiple variants of the safety cap designed to satisfy different needs by incorporating in the same external tubular lid different overcaps that allow to obtain plugs safety with tamper evident tamper evident seal both of the type that has a removable seal to the opening of the cap, as well as a tear-off type and also externally finished plugs by means of an aluminum enclosure. It will also be possible to proceed to incorporate two types of internal sealing element or "washer" with or without glass ball in these types of plugs, which will allow expanding the range of safety plugs. Therefore, in accordance with the present improvements, thanks to the modularity of the present invention it will be possible to achieve, with small constructive variants, different types of safety plugs, designed to meet different market demands, such as: Safety cap with tear-off seal. These safety caps require the complete breakage of the overcap to be able to unscrew the cap and subsequently allow the emptying of the bottle. This version is the one that has the greatest security, making counterfeiting as difficult as possible. It is a safety plug specially designed for sectors where traditionally there is a high incidence of counterfeiting. Safety cap with removable seal when opening the cap. It is a safety plug with a strip of detachable seal that also has high safety features allowing to control any manipulations. This type of safety plugs is appropriate for products in which the incidence of counterfeiting is not as high as in the case considered above. Although the tear-off seal carries a high degree of security, in extreme cases episodes of manipulation can occur more easily than in the case previously considered. Safety cap with metal enclosure. It is a safety plug in which the overcap is metallic, for example made of aluminum, constituting a metal element with thin walls that is superimposed on the removable cover of the cap and which provides a certain aesthetic appearance in the assembly formed by the security cap and the bottle itself. It is a particularly suitable stopper in the case in which it is desired to favor especially the aforementioned aesthetic characteristics. Each of the three main variants described above can be combined with an internal obturator with or without a ball, which will broaden the range of possibilities for producing safety caps according to the present invention. In particular, the improvements object of the present invention are intended to achieve advantages in manufacturing and functional advantages. Between the advantages in the manufacture can mention the smaller number of distinct molds necessary for the manufacture of all a complete range of plugs of hygiene, which is a result of the modularity characteristic of the present invention. At the same time, the necessary stocks of parts are reduced, since the specific versions of parts are reduced and those that are common to the different planned executions are increased. This also means a significant advantage from the point of view of production planning. Likewise, it is possible to achieve a remarkable ease of assembly of different covers in the same packing and closing lines of the bottles. The present improvements also allow to achieve numerous and sensitive functional advantages among which the following can be mentioned: Difficulty of removing the body from the safety cap due to the large resistant surface that the cap-tube presents, which achieves greater safety. The greater resistance of the corresponding area of the tubular lid or "lid-tube" allows the realization of incisor teeth in the body of the cap that do not need to coincide with the teeth of the tubular lid, such as in embodiments of caps of safety belonging to the State of the Technique, with which errors in the crest to crest mount between teeth are avoided. A faster pouring of the liquid contained in the bottle provided with a safety cap according to the present improvements is also possible due to the larger open surface of the intermediate body or "washer". In versions with pull-out strip, the seal can be peeled off regardless of the opening direction of the lid. According to another embodiment of the invention, this allows to increase the versatility of the same allowing the realization of non-refillable caps for bottles that combine an external metal cap with an intermediate piece molded in synthetic material, destined to fit in external nerves of the upper part of the lid-tube and equipped with external ribs for the pressure-coincidence of the metal cap and which eventually has a fracturable seal at the time of opening, thus constituting a means for controlling possible manipulations, that is to say, what In this sector, a "tamper evident" device is called. The metallic cap may be longer in the case where tamper evident is not available, absorbing the height corresponding to said element. For better understanding, representative drawings of embodiments of the present invention are attached as explanatory but not limiting examples. Figures 1 to 10 refer to a version of the so-called tear-off cover type with the following detail. Figure 1 shows a partial sectional view of a safety plug according to the present improvements. Figure 1a shows a detail in section. Figure 2 shows a side elevational view of the security cap according to Figure 1. Figures 3 and 4 are views equivalent to Figures 1 and 2 by planes located at 90 ° with respect to those of those figures. Figures 5 and 6 are corresponding to the figures 1 and 2 in a second embodiment of the overcap, without side windows. Figures 7, 7 bis and 8 are views similar to those of figures 1, 1 bis and 2, corresponding to the overcap of figures 5 and 6. Figures 9 and 10 are a partial section with the safety cap mounted and the same partial section with the lid removed once the overcap of figures 1 to 8 has been removed.

Figures 11 and 12 show respective elevational and perspective views of the body of the safety cap, showing the anti-rotation device between cap-pipe and body. Figures 13 to 18 correspond to the version of safety cap with removable seal at opening, according to the following detail. Figure 13 shows an elevational view with partial section of a mounted safety cap. Figure 13 bis shows a detail in section. Figure 14 shows a cross section through the section plane shown in Figure 13. Figures 15 shows a view of the safety cap with the cover in the assembly period. Figure 16 shows a perspective view of the corresponding lid-tube. Figure 17 shows one. perspective view with the lid removed after the seal breaks. Figure 18 shows a section similar to that of Figure 13 with ball shutter. Figures 19 to 21 correspond to the metallic overcap version according to the following detail. Figure 19 shows a front elevational view with partial section of a safety cap according to the present improvements with metal overcap.

Figure 20 shows a view corresponding to Figure 19 with the lid removed and partially in section. Figure 21 shows a view similar to figure 20 in which the metal overcap disassembled with respect to the lid has been shown for illustrative purposes. Figure 22 shows according to a sectional view the elements of an alternative version of the invention, in which the intermediate piece has a safety seal, the elements being represented in the mounting position of the overcap on the lid-tube. Figure 23 shows a complete section of a plug according to the present improvements in which the overcap has already been assembled and incorporated on the lid-tube. Figure 24 is a view similar to Figure 22 corresponding to the relative position of the plug elements of Figures 22 and 23 in the open position. Figure 25 shows a section similar to figure 23 in the intermediate piece version without lower safety seal and longer external cap. Figures 26 and 27 show respective views in the assembly position and in the opening position of the cap shown in figure 25. Figures 28, 29 and 30 show sections along the indicated cutting planes of one of the intermediate piece and cap assemblies. metal in the case where a lower seal ring is not available. As shown in the figures, the improvements object of the present invention provide for the realization of a tubular lid assembly formed by the external tubular element -1- adapted to adapt to a part of the neck of the bottle and the upper lid -2 - which, in a conventional manner, is connected to the rest of the lid-tube by means of a weakening line -3-, receiving upperly the overcap -4- which is confronted by its lower edge -5- in a straight step -6- of the lid-tube In the version shown, the overcap -4- will be tear-off, proceeding to its necessary break to allow the opening of the lid -2-. This represents the highest degree of safety, since in order to open the safety cap, the overcap must be broken, which will reveal any manipulation that has been carried out. The retention of the overcap -4- on the cover -2- will be effected by the arrangement of several successive segments of internal peripheral ribs -7- on the inner face of the overcap -4- which coincide below the rib -8- that it has the lower part of the lid -2- on the outside. The safety cap that incorporates the present improvements presents the so-called washer -9- with a uniquely cylindrical neck -10-, adapted to fit inside the neck of the bottle and having thin walls and a large diameter opening that is combined with the internal shutter element -11- which has a general frustoconical structure open downwards, to achieve a closing area - 12- large diameter, which fits directly on the start of the single cylindrical neck -10-, thus allowing to achieve a greater passage section. Also present said washer -9- a flange -9"- which receives the flange -20- of the body -18- of the plug, which is also butted with the internal step -1'- of the tubular element -1- of the assembly of lid-tube -1-, -2- The overcap -4- presents a variable number of openings such as -13- and -14- that reduce the weight of the piece, allow direct observation of the external or peripheral part -15- of the cover -2- and enable improvements in the molding.In the version shown in figures 5 to 8, the overcap, indicated with the numeral -16-, is flat outwardly presenting lines of weakening in number and arrangement variables such as -17-, -17'-, -17"-... that allow the overcap to be started prior to the opening of the safety cap. The overcap 16 presents internal elements common with those of the previous figures.

Figure 10 shows the part of the lid -2- of the so-called lid-tube, disassembled with respect to the body -18- and the tubular part -1-, showing the obturator or valve -11-, washer -9 - and the counter-cap or body -18- which is seen in greater detail in figures 11 and 12. The anti-rotation immobilization of said body -18- with respect to the tubular part -1- of the cap-tube is obtained from the mode shown in Figure 12, in which it is seen that in the step -19- of the lower flange -20- of the body -18- are made, preferably on the edge -21- of said step, multiple projections such as indicated with the numerals -22-, -22'-, -22"-... occupying one or more circular sectors of small extension, preferably in a diametrically opposite arrangement to each other. -22"-, have pointed areas and / or cutting edges, so that when the pressure cover is assembled, the internal step of the sharp edge - 23- of the same is partially inserted in said pointed projections and / or with acute edge, effecting its automatic retention anti-turn, without presenting drawbacks such as those that occur in some embodiments of the State of the Art that present conjugated teeth, in the that assembly problems can occur due to the frontal coincidence of the teeth, besides presenting greater difficulties and manufacturing costs.

As indicated above, the overcap -4- presents inferiorly a strip -24- joined by a line of expiry -2 '- which will be retained in the cap-tube when peripheral ribs thereof coincide -25- in a slot 26 in corresponding position of said lid-tube. Therefore, with the embodiment shown, a safety cap is obtained in which a larger passage section is available, allowing a higher liquid outflow and at the same time a cap-tube that allows its anchoring is achieved direct in the lower flange of the body of the plug by directly driven into the projections of the step thereof and also has means for retaining both the overcap by the conjugate arrangement of nerves and the lower strip of said cover provided butt against the lid-tube and retained also by a rib arrangement and conjugate groove. The realization of the retention ribs in the overcap in the form of partial sectors facilitates demolding of the part and considerably simplifies the manufacture thereof. Figures 13 to 17 show the embodiment of the safety cap with removable seal on opening, it being appreciated that the cap-tube integrated by the tubular element -1- and the cover -2- is common with the previously explained embodiments, receiving, in this case, an overcap -37- which is retained by ribs -37"- conjugates of the rib -8-of the cover -2- The plug has in this case a strip of automatically removable seal -28- which remains attached by a line of expiration -27- with the overcap -37- and internally has multiple internal ribs in the longitudinal direction, indicated with the numerals -29-, -29'-, -29"-..., which preferably adopt a structure of inclined flanks, for example a shape similar to the known "dovetail" and which are capable of abutting the rotation of the overcap with multiple ribs arranged at the periphery of the step of the cap-tube, which have been indicated with the numerals -30 -, -30'-, -30"- of the peripheral step of the lid-tube, so that when the overcap is rotated in any direction of rotation, the stresses on said band -28- automatically produce its breaking, as it has been shown schematically in Figure 17, in which said band -28- has been fractured in two or more parts -28'- and -28"-. The continuation of the unscrewing of the overcap will allow the opening of the bottle, and the detachment of the seal 28 will constitute a demonstration of the manipulation effected on said safety cap. In this embodiment, the projections -30-, -30'-, -30"-are preferably distributed in two semicircular zones symmetrical with each other, but with the nerves with variable inclinations to allow the piece to be demolded in two halves. flanks substantially parallel to the diametrical plane of symmetry Figure 18 shows an embodiment of the safety plug with ball shutter that has been indicated with the numeral 31. In this case, said ball is disposed in a prolongation -32. - of the washer, the rest of the elements being analogous to those previously explained.Figures 19 to 21 show the arrangement of a metal cover -33- that surrounds the entire part of the cover -2- of the assembly The lid-tube formed by the lateral tubular element and lid -2-, which as is characteristic of the present improvements, is common to all embodiments, said overcap -33- is adapted by its b lower knob -34- in the peripheral step -6- of the lid-tube and has a rib -35- made by stuffing, which is retained in the protruding rib -8- of the cover -2-. A series of external reliefs -36-, -36'-, -36"-..., fit with the external rib of the cover -2-, indicated with the numeral -37'- in figures 1 to 4, showing both elements in rotation, so that in disassembly is separated in the form of a single element, as seen in the version of figures 22 to 30, the present improvements provide for the realization of a molded intermediate piece -101-, made in synthetic material, adapted to coincide in a nested manner by the internal ribs -102- in the external ribs -103- of the upper part -104- of the cap-tube, having a fracture ring -105- attached at the bottom by means of a The expiration line -106- A metal cap -107- is adapted on the upper base of the overcap -101- and laterally fits and is joined to a rib -108- of the lateral surface of the overcap itself, which also has a internal peripheral nerve -109- intended to coincide below the projecting edge -110- to which the nerves -103- join. The seal ring -105- has internal nerves -111- that will fit with the peripheral nerves -112- of the intermediate collar -113- of the skirt -114- of the cap-tube. The coupling position is shown in figure 23 and the opening position is shown in figure 24, in which the separation of the intermediate body in the form of overcap -101- with its metal cap is observed so that the seal -105- has been broken in two parts so that when closing the container by screwing the overcap the seal can not be replaced, this being an evident sample of the handling of the bottle. In figures 25, 26 and 27 the intermediate piece version without safety seal has been shown. In this case, the intermediate piece -115- ends at its lower edge, in which the cap -116 is partially adapted by means of a soft transverse insert -117-, ending the cap -116- with a lower skirt -118- whose lower edge -119-faces the step -120- of the skirt -121- of the overcap. By means of the two versions explained, an execution of the plug is achieved by means of which the entire external surface of the metal cap and the overcap are flush externally, as can be seen in the figures in which the cap mounted on the neck of the the bottle, that is to say, figures 23 and 25. In figures 28, 29 and 30, one of the executions provided in the present invention, specifically that corresponding to an intermediate piece without a security seal, has been shown in greater detail. In said figures, the cap 116 is observed with the above-described embossing 117 and the superior embossing of similar characteristics 122. The linear embossments -123- are also observed, -123'-, -123"- which fit with a profile of conjugated shape of the intermediate piece -115- As will be understood from the description made, the present improvements allow the realization of a whole family of safety plugs of Modular shape with a unique cap-tube to allow the adaptation of tear-release versions, self-dismantling seal and metal overlays, with a minimum of molds for their manufacture and with a high functional effectiveness. specific examples, these will not have limiting character and, otherwise, the technicians in the matter after having access to what is disclosed in the present description, claims and drawings, will be able to introduce numerous variants in the object of the present invention which will be included in the scope thereof, provided they fall within the scope of the following claims.

Claims

1. Safety caps for bottles, of the type comprising a piece in the form of a washer adaptable to the upper edge of the neck of the bottle and to an area of the internal part of the bottle, a shutter or displaceable valve, a so-called washer conjugated with said Obturator element and receiver of the body of the cap which is adapted by threaded the part of the lid of a lid-tube element, adapted by its lower cylindrical skirt on the outside of the neck of the bottle and intended to receive an external cover overcap, characterized by the constitution of the cap-tube with external structure capable of optionally receiving a fracturable overcap, a non-fracturable overcap with separable seal band and a fitted metal overcap, presenting for this the cap-tube at its outer periphery, successively from the upper part to its intermediate step, a longitudinal grooving that can be fitted with embossments of the metal overlay a, a peripheral rib that can be fitted with partial sectors of the overcap and with embossments of the metal overcap, as well as a second peripheral ridge that can be coupled to a conjugate rib of the tear-off type overcap, existing in the area of the cap-tube comprised between both multiple external ribs external projections intended to be conjugated with internal reliefs of the separable seal band, while the cap-tube has a smooth internal step intended to be press-fitted in an anti-turn arrangement in projections made in the lower flange step of the body for its radial immobilization.

2. Safety caps for bottles, according to claim 1, characterized in that the projections of the lower step of the body flange are arranged occupying small angular sectors, preferably diametrically opposite, and have a pointed profile and / or sharp edges. to allow the insertion by compression of the inner smooth step of the lid-tube, achieving an anti-twist effect.

3. Safety caps for bottles, according to claim 1, characterized in that the internal sealing body has a frusto-conical shape open towards the lower part, determining a seat of large diameter that coincides on a single internal neck of the washer part of the safety cap, resulting in a maximum passage section for emptying.

4. Safety caps for bottles, according to claim 1, characterized in that the projections of the cap-tube intended to fit with internal reliefs of the fracture seal band are made in two opposite semicircular sectors with profiles substantially parallel to a diametrical plane of symmetry to allow its demolding by two halves in lateral displacement.

5. Safety caps for bottles, according to claim 1, characterized in that the metallic overcap presents embossments in a conjugated form to the external ribs of the lid, to allow them to be joined in rotation.

6. Safety caps for bottles, according to claim 1, characterized by the provision of an intermediate piece between the overcap and the cap-tube, molded in synthetic resin, which is intended to receive the overcap in the form of an outer metal cap coinciding external axial reliefs of said cap in reliefs of conjugated form of the intermediate piece and said metal cap having an outer diameter coinciding with the outer diameter of the cap-tube, making it flush with it.

7. Safety caps for bottles, according to claim 6, characterized in that the intermediate molded piece is extended inferiorly, through a transverse line of expiration, with a skirt of fracturable seal at the opening of the cap.

8. Safety caps for bottles, according to claim 6, characterized in that the external metal cap has a skirt in extension of its lower edge provided with a peripheral embossing that coincides below the lower edge of the molded intermediate piece and whose lower edge is left facing the external step of the lid-tube.