Classifications

• • 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
  • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
  • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
  • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
  • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
  • B65D41/0421—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck and combined with integral sealing means contacting other surfaces of a container neck
• • 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
  • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
  • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S215/00—Bottles and jars
  • Y10S215/01—Fins

Definitions

• plastic caps for closing containers in particular bottles
• Many embodiments of caps have a so-called guarantee band, which can be removed and is torn off the cap when the bottle is opened.
• the tamper-evident band is connected to the actual cap with small bridges, this shows the original condition of the bottle contents. It is thus guaranteed that the cap is attached to the bottle neck in the original state, preferably screwed on.
• the guarantee band engages under a bulge or projection on the bottle neck.
• the connecting webs between the side wall of the cap and the guarantee tape tear off due to the tensile and shear forces.
• the guarantee band remains on the bottle neck and the cap can be completely unscrewed.
• Polypropylene (PP) is currently the most commonly used plastic material for the body of the cap.
• the plastic PP is relatively hard, so that the function of the guarantee band is guaranteed. It is almost impossible to use a tool to lift the PP cap without visibly damaging it.
• the height is a uniform 20 mm.
• the guarantee tape made of PP sits firmly on the bottle neck and tears off immediately when attempts are made to open it. Below the bead or protrusion, which is underneath the detachable guarantee band, there is a collar on the bottle neck. The bottle is usually hung on this holding collar while it is being filled and then closed.
• bottles made of the plastic material PET or PEN are, in particular, bottles made of the plastic material PET or PEN.
• the guarantee band of the closure cap ends in the case of the PP embodiment mentioned here, which is customary in the prior art, about 2 mm above the retaining collar on the bottle neck.
• the known cap has the disadvantage that it must be carried out in two parts.
• the polypropylene material would be too hard for the sealing lips that cover the space between the two parts.
• Bottles that can have larger bumps or deformations than glass bottles.
• the softer seal is made from ethylene vinyl acetate (EVA), i.e. two different injection molding processes are necessary, and the two-part closure cap is then joined together.
• EVA ethylene vinyl acetate
• one-piece caps made of polyethylene have already been proposed.
• This material is softer than the common polypropylene and can therefore ensure the sealing function by designing the sealing system if the closure cap is produced in one piece by a single injection molding process.
• the guarantee band can be manipulated in a manipulative manner and that integrity can be simulated.
• the one-piece plastic cap made of PE has therefore not been able to establish itself for reasons of guarantee protection.
• a plastic cap is known according to the preamble of claim 1, in which the detachable guarantee tape is extended in the direction of the central axis of the cap.
• the guarantee band extends to Retaining collar of the container when the cap sits on the opening of the container and the guarantee tape engages under the bead or projection on the bottle neck.
• a closure cap which is manufactured in one piece with a guarantee tape by injection molding. Connecting elements are provided between the sealing cap and the guarantee band. An inner seal is provided on the bottom of the cap.
• the combination of a bottle and a closure cap is known from European patent application EP 316 167.
• the bottle is made of polyethylene terephthalate (PET).
• PET polyethylene terephthalate
• the cap is made of a thermoplastic resin such as Polyolephin made.
• the cap has an annular shoulder 10 which abuts the top and outer surfaces of the bottle neck.
• the closure cap also has an annular rib 13 which rests inwardly from the shoulder 10 on the inner surface of the bottle neck.
• a closure cap for reusable PET bottles is known with a cap wall which has an internal thread, a front wall which closes the cap wall and a guarantee band which adjoins the cap wall.
• the end wall has an annular inner seal protruding from the open end and spaced apart from the cap wall, the outer diameter of which tapers in the area of the free end toward the latter.
• the closure cap is designed in such a way that the inner seal has a bead which is directed towards the cap wall and is formed in the region of the free end, and that the bead comprises the region which tapers in the outer diameter.
• a closure cap for releasably closing a container which has a cap body corresponding to the container.
• the cap body and a seal cooperate with the top of the container to seal the container.
• the closure cap has at least one shoulder formed on the cap body, which lies opposite the upper edge of the container and which interacts with the seal when it is closed.
• a closure cap can be produced in a few steps, ie it can be shaped and demolded from a casting mold, and it can be recycled after use.
• the problem of the invention is therefore to create a one-piece plastic closure, in particular made of PE material, which can be placed on a filled container without any special tolerance requirement, and at the same time fulfills the further, sometimes contradicting requirements, can be produced in a few steps and can be recycled after use to be, as well as to guarantee the guarantee function and the sealing function for the closed container equally reliable.
• the solution according to the present combination invention consists in a sealing cap with an extended guarantee band and an extended, i.e. over the edge of the container neck into the opening, which is characterized by the following features in combination:
• the funnel- or bell-shaped guarantee band extension does not sit on the holding collar of the filled container, and - The funnel-shaped inner seal outer surface rests elastically on the container neck.
• the plastic closure can be placed on a filled container without any special tolerance requirements. Due to the one-piece design, the plastic closure can be molded in a few steps by injection molding and can be removed from the injection mold. The same feature (a single plastic material, especially polyethylene) makes the plastic closure recyclable even after use.
• the guarantee function for the closed container is reliably ensured that the funnel or bell-shaped extension of the guarantee band is not seated under the holding collar of the filled container.
• the sealing function for the closed container is reliably ensured in that the funnel-shaped outer surface of the inner seal rests against the container neck in an elastically compressible manner.
• the plastic material of the one-piece closure cap has a strength in use which is hard enough for the funnel-shaped guarantee band and at the same time soft enough for the funnel-shaped inner seal.
• the undercuts on the guarantee band and on the inner seal can be removed from the injection mold as long as the warm plastic material has not yet reached its operational strength.
• the guarantee tape in the direction of the central axis of the cap can be longer than the usual 20 mm.
• a total height of 23.5 mm is suitable for closing the PET bottles, which are currently common.
• the guarantee tape extends up to the retaining collar and is firmly pressed onto it. It is then not possible to lift the guarantee band with a lever.
• the lower end of the guarantee band can sit in a bell shape and then not be gripped, which offers sufficient security even with the relatively soft PE material.
• the container is a bottle (claim 6), which has a screw cap.
• the bottle is preferably made of plastic material (claim 7).
• Presently common and widespread are PET or PEN bottles (claim 8) for which the claimed plastic caps are particularly suitable.
• the preferred exemplary embodiments for the construction and use of the closure caps are not intended to limit the invention as set out in claim 1.
• a sealing system "a” in combination with the extended guarantee band is claimed.
• the dependent claim 36 is directed to a scale-like structure on the underside of a thin, wedge-shaped sealing lip.
• FIGS. 1 to 4. The combination invention is explained in more detail with reference to FIGS. 1 to 4.
• the figures show:
• FIG. 1 An embodiment "a” of the cap according to the invention in axial sectional view (Fig la), in axial partial section (Fig. 2a) screwed onto a bottle and in horizontal section (Fig. 3a) along the line A-A in Fig. La;
• FIG. Lb An embodiment "b" of the closure cap according to the invention in an axial sectional view (Fig. Lb) in the closed state, and for a container to be closed (Fig. 2b) in an axial sectional view (Fig. 3b);
• FIGS. 1 and la a preferred exemplary embodiment of the invention is shown in an axial step in FIGS. 1 and la.
• the shape of the cap is recognizable by the right hatching, the shape of the inside bottle neck by the left hatching.
• the closure cap is in one piece, ie the three annular sealing lips 8a, 10a, 15a, which lie opposite the edge of the bottle neck 1, as well as the guarantee band 6 formed below, are produced in a single operation by injection molding.
• the cap is shown in Fig. 1 in the state in which it is screwed onto the bottle neck 1.
• the guarantee band 6, which is connected to the body 2, 3, 4 of the closure cap by means of small webs 5, engages under a bead or projection on the outside of the bottle neck 1.
• the separable guarantee band 5, 6 extends far down and sits on a retaining collar bottle 1.
• the holding collar serves to hang the container, here a PET bottle 1, in a transport device while the container 1 is being filled and closed.
• the molded guarantee band 6 can be relatively soft, according to the invention it sits firmly on the bottle neck and tears off immediately when the screw cap is opened.
• the shape of the plastic sealing cap 2 to 7 makes it possible for the first time to meet the technical requirements of simple manufacture (one-piece sealing cap), secure sealing function (soft material for sealing lips), easy opening (easy removal of the guarantee band as intended) and reliable guarantee function (guarantee band close to the container) ) to be fulfilled at the same time.
• Claims 9 and 10 relate to a closure cap, in particular for reusable PET bottles, with an internally threaded cap wall, an end wall that closes the cap wall and an annular guarantee band that can be torn open at a predetermined breaking point, the end wall being a has an annular inner seal protruding toward the open end and spaced apart from the cap wall, the outer diameter of which tapers in the area of the free end toward the latter.
• these are screw-on caps for closing bottles, in particular for closing so-called reusable bottles.
• Such bottles are used for filling drinks of any kind, carbonated drinks in particular also being filled into the bottles. Consequently, the closure cap used there must also withstand the gas pressure which arises within the bottle, and must therefore be gas-tight with the bottle or with respect to the bottle.
• So-called PET bottles have been on the market for some time now, and these are reusable plastic bottles, which are offered in particular with a filling volume of 1.5 liters. Because of the considerable tolerances of the bottles in question in the area of the bottle mouth, there are special sealing problems with respect to the closure caps to be used. Consequently, caps with special sealing measures are required.
• the PET bottles in question no longer have perfect orifices and threads, especially when used repeatedly, especially since they are usually deformed or damaged by the handling of consumers and fillers.
• the sealing caps are provided with a special sealing material, at least in the region of the end wall, where the end face of the bottle mouth comes into contact.
• a preferably soft plastic is used, which differs from the remaining material of the closure cap - aluminum or also plastic. Consequently, this additional sealing measure provides a multi-part closure cap made of different materials, which is no longer justifiable in view of the increasingly demanding recycling of such parts.
• the inner seal is required for the gas-tight closure of a bottle by means of the screwable closure cap in question.
• This makes this special configuration characterized in that the inner seal in the region of the free end has a bead directed towards the cap wall, which, when the closure cap is screwed on, presses against the inner wall of the bottle in the region of the bottle mouth. Due to the formation of the bead in the area of the free end and due to the integration of the area tapering in the outer diameter in the bead, the inner seal presses very strongly against the inner wall of the bottle when the cap is screwed on and effectively seals between the inner seal and the inner wall of the bottle.
• a gas pressure building up inside the bottle is used in a very particularly advantageous manner for pressing the inner seal against the inside wall of the bottle, the bead formed at the free end of the inside seal being pressed against the inside wall of the bottle with enormous pressure due to the considerable distance from the end wall. Due to the relatively wide engagement of the inner seal or the bead provided at the free end, it is not possible for the bead to slide off at the bottle mouth, rather a certain sliding of the bead along the inside wall of the bottle is possible without losing the sealing effect.
• the sealing cap according to the invention can also be characterized by the features of claim 10. Thereafter, the closure cap according to the invention is equipped in such a way that the end wall in the region between the cap wall and the inner seal has a first annular wedge seal which projects from the end wall and is at least slightly inclined toward the inner seal.
• a sufficient seal between the closure cap and the bottle to be closed can be realized in that a seal, referred to as a wedge seal due to its wedge-shaped configuration, is formed between the inner seal and the cap wall.
• This seal is also circular and is bent further towards the inner seal when screwing onto a bottle due to its tendency towards the inner seal, so that the wedge seal rests firmly in the area of the bottle mouth due to its inherent elasticity and the tension caused by the screwing on.
• the inner seal has a bead directed towards the cap wall and formed in the region of the free end, in addition to the provision of the wedge seal previously discussed, and if this bead has the tapering outside diameter Area includes.
• the features previously presented as alternative solutions are combined here in a very particularly advantageous manner in order to significantly and effectively improve the sealing effect, in particular with regard to a very high gas pressure inside the bottle.
• the inner seal it is a further advantage if it runs approximately in a straight line up to the bead on the side facing away from the cap wall.
• the inner seal merges into the bead in an approximately arc shape, i.e. the side of the inner seal facing the cap wall extends in the direction of the cap wall.
• the inner seal tapers again approximately in a straight line in the outer diameter, which results in a wedge surface running from the lower end of the inner seal to the outermost region of the bead, by means of which the inner seal or the bead of the inner seal can be inserted into the bottle mouth.
• the inner seal is pressed inward approximately by the amount of the bead protruding and, because of the material-specific elasticity, therefore exerts considerable pressure on the inside wall of the bottle in the mouth area due to the tension achieved in the process.
• the bulge is preferably dimensioned and extends into the cap wall in such a way that the inner seal or bulge, when screwed on, presses against the inner wall of the bottle in the region of the bottle mouth with a predetermined contact pressure in accordance with the tolerances of the cap and the bottle mouth.
• the previously mentioned first wedge seal is positioned and dimensioned in a particularly advantageous manner in such a way that, when the closure cap is screwed on, it serves for prestressed contact with the radius of the bottle neck, ie at the transition into the bottle mouth.
• the first wedge seal is bent towards the end wall when the closure cap is screwed on and, due to its inherent elasticity and the resulting tension, presses against the screwed-on state Radius of the bottle neck or exactly at the transition into the bottle mouth, ie at the edge between the end face of the bottle mouth and the inside of the bottle.
• the wedge seal is pressed even more against the bottle radius, so that the sealing effect is increased again due to the internal pressure.
• the inner seal mentioned in detail above which is also pressed against the inner wall of the bottle due to the pressure building up inside the bottle beyond the contact pressure achieved by the material-specific tension.
• the first wedge seal can have a concretely different shape, for example tapering towards the free end with essentially flat surfaces.
• the two-sided surfaces of the first wedge seal could be made concave or convex. Rounding the free end of the first wedge seal is also possible.
• the second wedge seal like the first wedge seal, is bent towards the end wall when the closure cap is screwed on, as a result of which, due to the inherent elasticity of the second wedge seal, a considerable contact pressure is exerted on the bottle, more precisely on the end face of the bottle mouth.
• the second wedge seal can also taper towards the free end with essentially flat surfaces, whereby these two-sided surfaces of the second wedge seal can also be concave or convex.
• the cap wall is approximately radial or rearward, preferably in the upper region, ie in the region shortly before the transition to the end wall has an internally protruding annular seal for contact with the bottle outer wall.
• This can be a seal designed in the sense of a cord seal or a sealing ring, this preferably being an integral part of the closure cap. In the sense of a sealing bead, this seal could be rounded inwards and dimensioned such that it bears against the outer wall of the bottle under tension when screwed on.
• the guarantee band is provided in combination.
• This guarantee band adjoins the cap wall on the side facing away from the end wall and has a first predetermined breaking point.
• Such a configuration of the guarantee band is problematic to the extent that when the bottle is opened, i.e. when unscrewing the cap, the guarantee tape is first broken and torn by numerous users from the cap. After use, i.e. after emptying the bottle, this torn guarantee band often moves into the inside of the bottle, from which it is difficult to remove due to its curved design.
• the guarantee bands that have entered the bottle cannot be rinsed out. So-called bottle inspection machines do not recognize these tapes, which is why it is not uncommon for such old - used - guarantee tapes to get into a beverage that is refilled into the reusable bottle. Complaints are therefore pre-signed here.
• This second predetermined breaking point could be arranged such that it is the first predetermined breaking point is approximately opposite, so that when tearing open - after tearing open the first predetermined breaking point - the guarantee band can be divided into two halves of approximately equal length due to tearing open the second predetermined breaking point.
• the guarantee tape cannot be torn off in one piece, but only in two parts, namely in two short pieces. These two short parts resulting from the entire guarantee band can be easily rinsed out of the bottle through the relatively narrow bottle mouth, so that the aforementioned problem is solved.
• the closure cap is made in one piece.
• Polyethylene is particularly suitable for this purpose, especially since this plastic can easily be sent to a recycling process.
• FIG. 1a, 2a and 3a together show an embodiment of a closure cap according to the invention for reusable PET bottles 1, with a cap wall 3 having an internal thread 2, an end wall 4 closing the cap wall 3 and one adjoining the cap wall 3, at one
• the predetermined breaking point 5 is an annular guarantee band 6, 6a which can be torn open, the end wall 4 having an annular inner seal 7, 7a which projects from the open end and is spaced apart from the cap wall 3 and whose outer diameter tapers towards the latter in the region of the free end.
• the inner seal 7a has a bead 8a directed towards the cap wall 3a and formed in the region of the free end.
• the bead 8a comprises the area 9a which tapers in the outer diameter.
• FIGS. 1 a and 2 a further show that the end wall 4 in the region between the cap wall 3 and the inner seal 7 has a first annular wedge seal 10 a which projects from the end wall 4 and is inclined towards the inner seal 7.
• the inner seal 7 extends on the side facing away from the cap wall 3 approximately in a straight line up to the bead 8.
• the inner seal 7 approximately in an arc shape up to the bead 8, that is, it merges into the bead 8, and from there tapers again approximately linearly in the outer diameter.
• the bead 8 is dimensioned or extends in such a way towards the cap wall 3 that the inner seal 7 or the bead 8 in the screwed-on state presses against the inner wall 11 of the bottle in the region of the bottle mouth 12a with a predetermined contact pressure.
• Fig. 2a shows particularly clearly that the first wedge seal 10a is positioned and dimensioned such that in the screwed-on state it serves for the pretensioned contact at the radius or on the inner edge 13a of the bottle neck 14a or at the transition into the bottle mouth 12a.
• This first wedge seal 10a tapers towards the free end with essentially flat surfaces.
• La and 2a also clearly show that in the area between the cap wall 3 and the inner seal 7 in the transition between the cap wall 3 and the end wall 4, a second circular wedge seal 15 that slopes away from the end wall 4 or from the cap wall 3 and slopes toward the inner seal 7 , 15a, is provided.
• the second wedge seal 15, 15a is positioned and dimensioned in such a way that in the screwed-on state it serves for prestressed contact with the end face 16a of the bottle mouth 12a.
• the second wedge seal 15a is made tapering towards the free end with flat surfaces.
• Figures la and 2a further show that the cap wall 3 in the upper region, i.e. in the area shortly before the transition to the end wall 4, has an approximately radially or inwardly projecting circular seal 17a for contact with the bottle outer wall 18a.
• This seal 17a is in the sense of a sealing bead towards the inside, i.e. to the bottle outer wall 18a, rounded.
• the seal 17a is dimensioned as shown in Fig. 2a such that it bears against the bottle outer wall 18a under tension in the screwed state.
• FIGS. 1a and 3a show together that the guarantee band 6, 6a has a second predetermined breaking point 19a.
• the second predetermined breaking point 19a lies opposite the first predetermined breaking point 5, so that the tamper-evident band 6 when torn open - after tearing open the first one Predetermined breaking point 5 - can be divided into two halves 20, 21 of approximately the same length due to the second predetermined breaking point 19a being torn open.
• the cap is made in one piece and made of plastic, namely polyethylene.
• caps for closing GDB beverage bottles in order to keep the discussion clear.
• the present invention is not limited to caps for GDB beverage bottles, but is suitable for any type of container, such as, for example, also for food containers (so-called Tupper ware).
• the closure cap according to the invention can preferably be used both for reusable bottles (MW) and for one-way bottles (EW) made of the material PET.
• Caps with which beverage bottles or similar containers can be closed have to meet different requirements.
• the sealing of the beverage bottles or containers must be achieved in such a way that the beverage contained in them cannot escape from the container in the closed or locked state. If the containers to be sealed are bottles containing liquids, then this requirement is determined by the viscosity of the liquid. Are the drinks contained in the bottles also with a pressurized gas such. B. carbonated, then the seal must also be gas-tight to prevent the gas from escaping from the bottle.
• the sealing according to embodiment "b” is achieved in that a corrugated structure is provided, which presses the sealant specifically against the upper edge of the container, thereby creating a sealing zone in which the sealant presses against the upper edge of the container with high pressure
• the structure according to claim 24 enables a targeted positioning of the sealing lip on the edge of the container under a high contact pressure, which enables a very good seal without unnecessarily complicating the closure cap.
• the exemplary embodiment "b” of the present invention is explained in more detail below with reference to FIGS. 1b, 2b and 3b.
• FIG. 1b shows a closure cap for releasably closing a bottle according to a currently preferred embodiment of the present invention.
• the embodiment described in detail below relates to a screw cap for closing a bottle, which may contain carbonated liquids.
• the present invention is not limited to screw caps for bottles.
• alternative embodiments relate to cans that are suitable for food storage / freezing. Mason jars, but also caps for containers that are not used in the food sector, such as paint buckets.
• a closure cap is shown in its initial form in a sectional view.
• the closure cap consists of a cap body 10b, which comprises an upper cover part 18b and a substantially cylindrical side part 19b.
• the side part 19b extends essentially perpendicularly from the plane of the ceiling part 18b.
• the transition from the ceiling part 18b to the cylindrical side part 19b does not take place abruptly (sharp-edged), but by means of a rounded transition part 20b.
• the cover part 18b, the side part 19b and the transition part 20b are not separate elements, but rather that together they form the cap body 10b.
• a screw thread 12b is formed, which serves as a closure mechanism, by means of which the closure cap 10b is fastened on the container 100 to be closed.
• the screw thread 12b cooperates with a corresponding, paired screw thread 112 (see FIG. 2b) on the bottle 100.
• the screw thread 12b is not the only possible closing mechanism for the container to be closed. All possible other types of locking mechanisms known per se are also "suitable, such as bow locks, noses or shoulders engaging in recesses, etc.
• a sealing means in the form of a radially circumferential sealing lip 13, 13b is provided on the inside of the side part 20b.
• the sealing lip 13 has a long wedge shape. In the idle state (ie in the state in which the closure cap does not close a container), the sealing lip 13 extends almost horizontally from the transition part 20b, but preferably with a slight inclination towards the center of the closure cap. In a particularly preferred embodiment, the inclination is 41 ° to 48 ° to the horizontal in order to facilitate the removal from the mold (cf. FIG. 4).
• the width B of the sealing lip 13 is preferably selected so that the inner end of the sealing lip 13 is essentially flush with the upper bottle edge 104 in the closed state (cf. FIG. 3b). In a particularly preferred embodiment (see FIG. 4), the width B is preferably in the range between 3.8 and 4.5 cm.
• the entire upper edge 104 of the bottle 100 is substantially completely acted upon by the sealing lip 13 which circulates in the cap body 10b when the cap body 10b is screwed onto the bottle.
• the wedge-shaped, long, thin sealing lip 13 adapts its profile to different bottle necks when normal torques are exerted on the closure cap during the closing process.
• the profile of the sealing lip 13 can adapt to any radius of curvature.
• the cap according to the invention sits tightly on the bottle under all conceivable environmental conditions.
• the above-described inclination of the sealing lip 13 in its rest position is adapted to the inclination of the surface 104 of the bottle 100 out of the horizontal plane. as can be seen in detail in FIG. 2b.
• the upper edge 104 of the bottle 100 has an inclination (shown here for the sake of illustration for reasons of enlargement) out of the horizontal plane H, which is indicated by S.
• S the horizontal plane
• different configurations of the respective surface 104 can be selected depending on the container to be closed.
• the inclination or shape of the sealing lip 13 is preferably in each case to the selected surface shape of the container to be closed customized.
• the sealing lip 13 is preferably 3/10 mm to 7/10 mm thick at its root and a thickness of no more than 5 at its tip / 10 mm and should not be less than 2/10 mm, and according to a particularly preferred embodiment between 2/10 mm and 4/10 mm.
• These values have proven to be particularly advantageous for GDB glass bottles to be closed using the usual plastic materials for the cap body 10b.
• Correspondingly scaled values result for other caps, which have to close larger or smaller containers.
• the sealing lip 13 has a special scale-like structure (FIG. 4), which interacts with the unevenness on the upper edge 104 of the bottle 100 in order to bring about a better sealing of the bottle.
• the sealing means is arranged in such a way that a chamber 33 is formed between the cover part 18b and the side part 19b of the closure body and the thin, wedge-shaped sealing lip 13, that is to say seen from the top outside of the sealing lip.
• This chamber 33 provides scope for adaptation to different bottle neck diameters and thus supports a secure sealing of the respective container.
• the sealing means according to the teaching according to the invention has an undulating structure on the inner surface 18 ', with individual concentrically arranged, annular shoulders 34a-f running around the ceiling part 18b.
• the inner surface 18 'of the closure cap has a slope of 0.5 ° to 3 ° with respect to the horizontal and is corrugated in a wave-like manner, as can be seen in FIG. 4.
• These shoulders 34 are arranged such that the sealing lip 13 rests on them in the closed state and is pressed by them against the upper edge 104 of the bottle 100.
• the distance between the shoulders 34a-f is preferably chosen so that they all rest on the top edge 104 of the bottle 100; in other words, the radius Rs of the concentrically rotating shoulders is preferably selected such that the outermost shoulder 34a (FIG. 4) or 14b (FIG. 1b) is adjacent to the outer edge of the bottle 100, whereas the innermost shoulder 34f (FIG. 4) or 15 (FIG. 1) is adjacent to the inner edge of the bottle 100.
• the radius Rs of the concentrically rotating shoulders 34a-f is in the range from 16.5 mm to 18.5 mm
• the radius Rs of the concentrically rotating shoulder 15b is 17.5 mm.
• the shoulders 14b and 15b have different heights Hi, H 2 .
• the height difference H 2 - Hi is selected according to the invention so that, taking into account the slope S of the bottle surface 104 (cf. FIG. 2b), a uniform pressure is set on the upper edge 104 of the bottle 100 in the closed state.
• the heights of the shoulders 34 in this embodiment are selected according to the invention in such a way that the sealant, as it were, clings to the upper edge 104 of the bottle 100 and seals it securely.
• an elastic lamella 16, 16b extending perpendicularly from the ceiling part 18b is also provided, which extends vertically downwards in the idle state (cf. FIG. 1b).
• the sealing lamella 16 also runs concentrically to the center line M of the cap body, the inner edge having a radius Ri and the outer edge having a radius R 2 .
• the radii Ri and R 2 are selected such that the sealing lamella 16 extends immediately adjacent to the sealing lip in the idle state; according to a particularly preferred embodiment, the radius Ri is 15.4 mm and radius R 2 is 16.8 mm.
• the sealing lamella 16 is equipped with a shoulder 17, 17b, the highest point of which, when the cap body 10b is at rest, is essentially on a cylinder surface together with the free end of the sealing lip 13.
• the radius of the shoulder 17 is preferably 0.25 mm and is selected so that the sealing lamella 16 runs from the highest point of the shoulder 17 to the tip of the lamella 16 at an angle ⁇ .
• the angle ⁇ should preferably be no more than 35 ° and no less than 25 ° and, according to a particularly preferred embodiment, should be 28 °.
• the shoulder 17b of the sealing lamella 16b interacts with the inside of the bottle 100 in the closed state, the sealing lamella 16b being deflected from its rest position and being bent toward the inside of the bottle by actuation of the closure mechanism 12b.
• the small effective surface of the sealing lamella 16b (which is essentially predetermined by the tip area of the shoulder 17b) achieves a comparatively high sealing pressure which is defined by the restoring moment of the deflected sealing lamella 16b.
• the closure flap according to the invention can be made from different materials. If the sealant 11 (together with the shoulders 14b or 34a-f and the elastic lamella 16b) is provided as an integral part of the closure cap, polyethylene is particularly suitable as the cap material.

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• 1999
  • 1999-03-03 AT AT99930900T patent/ATE301081T1/de not_active IP Right Cessation
  • 1999-03-03 CN CNB998002178A patent/CN1208219C/zh not_active Expired - Fee Related
  • 1999-03-03 DE DE59912364T patent/DE59912364D1/de not_active Expired - Fee Related
  • 1999-03-03 DK DK99930900T patent/DK1117596T3/da active
  • 1999-03-03 EP EP02019387A patent/EP1266838A1/fr not_active Withdrawn
  • 1999-03-03 ID IDW991404A patent/ID22675A/id unknown
  • 1999-03-03 ES ES99930900T patent/ES2247811T3/es not_active Expired - Lifetime
  • 1999-03-03 WO PCT/EP1999/001357 patent/WO1999044896A2/fr active IP Right Grant
  • 1999-03-03 DE DE19909308A patent/DE19909308B8/de not_active Expired - Fee Related
  • 1999-03-03 TR TR1999/02714T patent/TR199902714T1/xx unknown
  • 1999-03-03 EP EP99930900A patent/EP1117596B1/fr not_active Expired - Lifetime
  • 1999-03-03 AU AU39093/99A patent/AU723140B2/en not_active Ceased
  • 1999-03-03 CA CA002286584A patent/CA2286584C/fr not_active Expired - Fee Related
  • 1999-03-03 JP JP54423499A patent/JP2001503359A/ja active Pending
  • 1999-03-03 US US09/423,172 patent/US6338414B1/en not_active Expired - Fee Related
  • 1999-03-03 BR BR9904821-3A patent/BR9904821A/pt active Search and Examination

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