EP1622810A2

EP1622810A2 - Closing cap, especially for a bottle which can be filled with edible oils

Info

Publication number: EP1622810A2
Application number: EP04727907A
Authority: EP
Inventors: Rudolf Erwes
Original assignee: Erwes Reifenberg & Co KG GmbH
Current assignee: Erwes Reifenberg & Co KG GmbH
Priority date: 2003-04-22
Filing date: 2004-04-16
Publication date: 2006-02-08
Also published as: WO2004094238A3; WO2004094238A2

Abstract

The invention relates to a closing cap, especially for a bottle which can be filled with edible oils. Said cap has an essentially circular-shaped closing cover (2), an essentially cylindrical closing casing (3), an outlet (4) comprising an outlet opening (5), said outlet widening from at least the peripheral part of the cross-section of the outlet to a draining edge (6). Said closing cap also comprises tongue segments (11) which are moulded to a surface of the inner wall adjacent to the direction of the periphery and which extend inwardly in a radial direction keeping free a central cross-section of a path. The closing cap (1) is formed as a single piece. According to the invention, the closing casing (3) comprises an inner thread (21) which can be screwed onto an outer thread of a bottle opening in order to further develop said type of closing cap with respect to the handling and use thereof in an advantageous manner.

Description

Cap, in particular for a bottle that can be filled with edible oils

The present invention relates to a closure cap, in particular for a hash which can be filled with edible oils, comprising an essentially circular closure lid, an essentially cylindrical closure jacket, a spout which, at least in a partial peripheral region of the outlet cross section, has a pouring mouth towards a drip edge expanded, and tongue segments, which are integrally formed on an inner wall surface in the circumferential direction and which extend radially inward while maintaining a central passage cross section, the closure cap being formed in one piece.

With regard to the prior art, reference is first made to CH 418865. This discloses a closure cap for a bottle which can be filled with edible oils, with a circular closure lid, a cylindrical closure jacket and a spout which widens towards a drip edge and which in a longitudinal section of the closure cap in longitudinal, ie. H. has an elongated extension in the axial direction, which also leads to a large overall height of the closure cap. Typically for cooking oil containers, the closure cap is closed at its mouth by so-called

Bouncing fastened by forcing an annular bead running around the inside of the closure when placing the closure over a corresponding annular bead projecting outwards from the container mouth. However, the bouncing can only take place in specially adapted filling systems, the feeds and sealing heads of which also have to be matched to the shape and dimensions of the sealing cap. On the other hand, a deliberate removal of the closure cap, for example for faster emptying of the container or for cleaning it, is only possible with considerable effort. In order to obtain a ty- In order to avoid frequent intermittent or "chucking" removal, the described closure cap has a slender, elongated pouring tube and openings for ventilation, which ultimately only allows a slow emptying of the container. With regard to this, corresponding closure caps are also known , in which a gurgling and intermittent emptying is avoided by tongue segments which are integrally formed on an inner wall in the circumferential direction and which extend radially inward while keeping a central passage cross section open. These sealing caps, which form the genre for the present invention, must also be knocked onto a In addition, these known caps also have an elongated pouring mouth and thus a large axial height to achieve a favorable pouring behavior, so that again separate filling devices with sp eecial closing heads are required.

Starting from a generic cap, the object of the present invention is to develop it advantageously with regard to its handling and use.

This object is achieved first and foremost in the subject matter of claim 1. In connection with the generic features, the aim is to ensure that the closure jacket has an internal thread that can be screwed onto an external thread of a bottle mouth. In principle, this means that, on the one hand, the devices used for beverage bottles can be used for filling, on the other hand, the cap can be removed from the bottle later without any problems. In a preferred embodiment, it is further provided that the outer contour of the closure cap is geometrically adapted to a closure head of a filling system, which is used for screwing on plastic screw connections. Conclusions on PET bottles, in particular with BPF or PCO mouth, is suitable. As a result of this adaptation, a changeover of the feeds and an exchange of sealing heads can be dispensed with on a filling system when, for example, transitioning from conventional beverage bottles to containers to be closed with the closure caps according to the invention, for example for cooking oil. In particular, for the purpose of this adaptation, it can be provided that the closure jacket tapers conically on the outside toward the closure cover, the cone angle preferably being in the range between 0.1 and 1 degree in a longitudinal section. Alternatively or in combination, there is the possibility that the axial overall height of the closure cap (without a possibly formed guarantee and tear-off tape) is in the range between 16 and 17 millimeters, preferably about 16.25 millimeters. It is further preferred that the largest outside diameter of the closure jacket is in the range between and including 30.1 and 30.5 millimeters, preferably 30.5 millimeters.

With regard to the inside of the closure cap, it is further preferred that the spout has an essentially cylindrical wall, that is to say a sleeve, which in a longitudinal section towards the underside of the closure is essentially straight or elongated into a seal, the outside diameter of which is approximately the same or slightly larger than the inside diameter of a bottle mouth, especially a BPF or PCO mouth. Overall, the sleeve therefore fulfills the function of a spout on the one hand at its upper end and the function of a so-called inner seal on its lower end, ie towards a closable bottle. Due to the essentially cylindrical course of the sleeve underneath the pouring mouth, in conjunction with the aforementioned adjustment to the inside diameter of a bottle mouth, the largest possible passage cross section is also provided for the pouring spout. Especially with regard on a preferred production in the plastic injection molding process, preferably made of polyethylene or polypropylene, a form that is favorable in terms of production technology is thus selected at the same time. An expedient development is possible in that an annular cover is formed on the outside of the cylindrical wall, which radially merges into the closure jacket on the outside. Due to a preferred horizontal section in the longitudinal section, ie perpendicular to the longitudinal axis of the closure, the ring cover can contribute to a low overall height of the closure cap. At the top, the ring cover can carry a centering bead in at least one partial circumferential area of the outlet cross section, which cooperates with a ring groove or a comparable recess of the cover in its closed position with respect to the longitudinal axis. There is also the possibility that the centering bead has one or more recesses directed radially inwards, which cooperate in a form-fitting manner with locking cams of the closure cover as a rotation lock. A possible favorable embodiment with regard to the pouring behavior is seen in the fact that the pouring mouth as an elastic spring lip extends in an open position of the closure lid in the longitudinal, ie axial, direction of the closure beyond a reference plane, which in the closed position of the closure cover with its head or. The underside of the cover plate coincides. The advantage here is that in the open position of the closure cap the spout has a comparatively large extension in the longitudinal direction, while at the same time in the closed position an overall low overall height of the closure cap can be achieved.

It is further preferred that the closure lid is hinged to the closure jacket with a hinge-like tab, so that it can be centered on the closure cap in a closed position and pivoted away from the closure cap about the hinge axis in an open position. With regard to the pouring mouth, it is further preferred that it extends in the radial direction up to an edge region of the ring ceiling, in particular by enclosing an angle of 15 to 25 degrees, preferably approximately 20 degrees, in a longitudinal section of the closure cap with a horizontal reference line. In the closed position, the pouring mouth can be bent back in sections or all the way around the entire circumference through the lid head plate in the case of a resilient contact with its outer edge region in the axial direction towards the underside of the closure, while during the transition to the open position, the pouring mouth can be re-erected independently, in particular to achieve this an elongated spout. The shape of the spout in the area of the spout can also be adapted to the fact that in the closed position, ie when the spout is bent back, the drip edge or a rim area of the mouth cooperates with the cap in a centering manner. In connection with the above-mentioned adaptation of the pouring mouth to an open and closed position independently by the spring action, it is further preferred that in the closed position of the closure lid the distance between the rop edge and the ring ceiling in the longitudinal direction is approximately 1 to 2 times, preferably about that

1.5 times, which corresponds to the thickness of the ovule wall. On the other hand, with regard to the open position, it is preferred that the aforementioned distance preferably corresponds to approximately 2 to 3 times, more preferably 2.5 times, the thickness of the top plate wall

In order to achieve a sealing of the head plate of the sealing cover on the sealing cap, which is connected with a centering, an annular seal can protrude from the underside of the head plate, the outer diameter of which knife is approximately the same or slightly larger than the inner diameter in an assigned length section of the cylindrical wall.

According to a further aspect, as a tamper-evident closure with guarantee function, on the one hand, a closure membrane with a circumferential tear joint and an upper pull ring can be molded into the inside of the cylindrical wall. Before liquid is removed from a container closed with the cap for the first time, the sealing membrane can be irreversibly separated from the pouring sleeve by inserting a finger into the pull ring and thereby exerting a pulling action along the reduced-thickness tear joint. With the closure cap removed or pivoted, liquid can thus be removed from the container with the closure cap still screwed on. Alternatively or in combination, there is also the possibility that a guarantee and tear-off tape is formed on the underside of the cap with thin material webs. This also indicates to a user whether the container has been opened beforehand, in spite of possibly still intact sealing membrane, since when the cap is first screwed on or unscrewed, the guarantee tape is separated from it by tearing open the connecting webs.

In order to achieve a configuration which is favorable in terms of injection technology, there is the possibility that the tongue segments are molded onto the cylindrical wall in the lower end region thereof and / or that the tongue segments taper towards their free end and / or run towards the underside of the closure.

A preference is given to coordinating the closure cap on bottle screw mouths with a nominal diameter of 28 millimeters, alternatively However, adaptation to other screw mouth types and sizes can also be provided.

According to a further aspect of the invention, which can also be of importance independently, it is preferred that the pull ring is molded onto the sealing membrane in an inclined position, so that in an open position of the sealing cover, the pull ring, starting from the sealing membrane, resiliently extends over one Extends reference plane, which coincides with the top of the cover plate in the closed position of the closure cover. Due to the fact that the pull ring is injection molded in an inclined position, this produces a rest position immediately after the production of the closure cap when the cover is open, from which deflections of the pull ring are possible against a spring-elastic restoring force, ie independently resetting. On the one hand, the injection area, ie the connection point, of the pull ring on the closure membrane can serve as a joint with a spring-elastic rest position, which can also be influenced by the shape of the closure membrane itself and by its spring properties. Alternatively or in combination, certain deflections from the aforementioned rest position can also be made possible by the resilient deformability of the access itself. The oblique rest position of the pull ring is achieved independently when the cover plate is in an open position in which the pull ring is not supported on the underside of the head plate. Since the pull ring in its oblique rest position extends at least in some areas in the longitudinal direction of the lock up to a reference plane, which coincides with the lower side of the cover plate when the cover is in the closed position, a convenient arrangement of the pull ring is achieved in the open position of the cover. Particularly the most protruding area, preferably the area opposite the connection point on the sealing membrane on the circumference of the pull ring, Compared to a flat rest position, it can be easily gripped and pulled up with one finger. While, depending on the specific design, a considerable extension of the closure cap in the axial or longitudinal direction can result in the above-mentioned easy-to-reach rest position of the pull ring, the closure state in which the closure cap preferably cooperates sealingly with the base of the closure cap can advantageously be one achieve a small axial height required for conventional closure heads in filling systems. This is due to the fact that the pull ring can be resiliently braced against the cover or its base plate underside facing the base in the closed state of the cover, ie it is automatically folded in when the cover is closed and is brought into a space-saving position or orientation. Depending on the deformability of the pull ring itself, the support can take place, for example, only in the ring area opposite the injection area or also over a larger, possibly even the almost complete ring area. After the filling process, the pull ring can be erected or unfolded into its easy-to-grip, inclined rest position when the cover is opened for the first time. The pull ring can extend therein in a plane which, with a plane perpendicular to the longitudinal axis of the closure, has an angle of inclination which is preferably in the range from 8 to 16 degrees and more preferably can be approximately 12 degrees. With regard to the rest position resulting in the open position of the closure lid, it is further preferred that the pull ring extends from the closure membrane to beyond the drip edge of the pouring spout, in particular to the area of the drip edge which is the most protruding in the longitudinal direction of the closure, which makes it more convenient to grip is further improved, hi continuation of this idea there is also the possibility that in an open position of the cover the pull ring with its The underside facing the closure membrane extends from the closure membrane in the longitudinal direction of the closure to at least approximately the height of the drip edge and / or the reference plane, which coincides with the underside of the top plate when the closure cover is completely closed. In the possible configurations mentioned, in which the pull ring extends obliquely on the upper side of the closure membrane starting from an edge-side connection point (injection area), the area opposite the connection point on the ring circumference can preferably serve as a grip section and, if appropriate, a particularly easy-to-grip design (e.g. have a flattened cross-section with a roughened surface). An expedient embodiment is also possible in that in an open position of the closure cover between the grip section of the pull ring and the pouring spout there is a minimum grip distance, which is preferably in the range between 1 and 5 millimeters, more preferably in the range between approximately 2 and 3 millimeters. The grip section of the pull ring can thus be gripped more easily with a finger, for example with the nail. In order to be able to hold the closure lid in the closed position against the resilient restoring force of the pull ring, there is the possibility that it can be held in a force-fitting and / or form-fitting manner on the base of the closure cap with regard to the pivoting direction. The base of the closure cap means the part of the closure cap that can be screwed onto a bottle mouth and that causes the closure with the closure lid in the closed state. A form-fitting holder can be realized, for example, by spring tongues, while a suitable force-locking connection can be achieved, for example, by suitable tolerance of centering and / or sealing projections between the sealing cover and the base of the sealing cap. Instead of a preferably loop-shaped pull ring, a differently shaped pull element (or a pull strip) can alternatively also be used. For the features described, Depending on the opening or closing state of an independent erection or application of the pull ring or the pouring spout, a one-piece design of the cover with the base as well as a separate design is possible.

According to a further preferred embodiment, it is possible that suitable ribs are provided on an outer circumferential surface of the ring seal and on an inner circumferential surface of the mouth to form a releasable locking engagement. As an alternative or in combination, suitable ribs can be provided on an outer circumferential surface of the centering bead and on an inner circumferential surface of a centering wall starting from an annular groove of the closure cover to form a releasable locking engagement. In the sense of the present invention, a respective such engagement is of importance with regard to various functions to be performed depending on the specific configuration. On the one hand, opening forces are counteracted by a respective detent, which come about in the closed state of the closure lid due to the drip edge, which is supported against it in an elastic manner, and / or the pull ring, which is resiliently resilient against it. Furthermore, the snug fit between a respective inner and outer circumferential surface is fixed by such a locking engagement. This is particularly advantageous if a certain liquid, in particular oil, film is already present on the surfaces of the closure cap, as a result of which the opening resistance is otherwise reduced. In addition, such a aforementioned engagement is particularly important in the area between the ring seal and the mouth with regard to an improved sealing effect, since the tooth profile-like engagement with the cross-section joint that is formed acts like a labyrinth seal. In particular, it is preferred that the ribs of the ring seal and the Mouth with respect to the longitudinal or symmetry axis of the closure The cap alternately protrudes radially and, in particular in the circumferential direction, is continuous all the way round. With regard to the possible other locking engagement, it is accordingly preferred that the ribs alternately protrude radially from the centering bead and from the centering wall with respect to the longitudinal or symmetrical axis of the closure cap. With regard to the last-mentioned locking engagement, it is preferably contemplated that the ribs on the centering bead and on the centering wall are provided in mutually associated circumferential sections, in particular in circumferential sections over a respective circumferential angle of approximately 90 °. In this case, a solution that is favorable in terms of form technology can consist in that two circumferential sections are provided, one of which adjoins one side on a circumferential angle region in which the spout is extended radially like an umbrella compared to the rest of the circumference. The latter circumferential angle range can preferably extend over an angle of approximately 120 °. A simple and expedient further development is possible in that the ribs each have the shape of a triangle in cross-section, in particular an isosceles or equilateral triangle, whereby, as well as a choice of the cross-sectional dimensions of the ribs adapted to the material used, meaning with regard to a resilience suitable for repeated closing and opening of the latching engagement can occur. Starting from the closed state of the closing lid, it can be unlocked by a certain opening force while overcoming the flexibility to open it and, if necessary, can be snapped back to close the closing cap. It is particularly preferred that ribs forming the locking engagement, which face each other and are assigned to one another and associated with one another, touch the opposite surface during the locking engagement, which is particularly advantageous for the sealing function mentioned. Alternatively or in combination, it can also be provided that the distance between two neighboring ribs emanating from the same surface is wider than the corresponding base area of a rib. If a free, limited cross-section remains between two adjacent ribs during the locking engagement, a capillary-effective receiving space for the liquid is provided, which is further advantageous for the sealing effect. In particular, the number of ribs per surface and locking engagement can be between five and ten, preferably about six. Finally, it is preferred that the two locking interventions mentioned on the closure cap are both realized and overlap one another in the longitudinal or symmetrical direction of the closure cap.

The present invention is explained in more detail below with reference to the accompanying drawings, in which, however, only exemplary embodiments which do not restrict the scope of protection are reproduced. It shows:

1 in a longitudinal section a preferred embodiment of the closure cap according to the invention in the open position,

2 shows the closure cap shown in FIG. 1 in a further longitudinal section perpendicular to FIG. 1 (see also FIG. 5), in each case on one side in an open and closed position,

3 the closure cap shown in FIG. 1 in the closed position in a side view, in each case half-sided in the opposite viewing directions identified in FIG. 7,

4 is a bottom view of the closure cap shown in Mg. 1 in the viewing direction JV, 5 is a plan view of the closure cap shown in FIG. 1 in the viewing direction V,

6 shows the closure cap shown in FIG. 1, but after a central closure membrane has been removed,

7 the closure cap shown in FIG. 1 with the same cut, but in the closed position,

8 in a longitudinal section a further preferred embodiment of the closure cap according to the invention in the open position,

9 shows the closure cap shown in FIG. 8 in a further longitudinal section perpendicular to FIG. 8, in each case on one side in an open and closed position,

10 shows the closure cap shown in FIG. 8 with the same cut as in FIG. 8, but in the closed position,

11 shows a plan view of the closure cap according to the invention in a further preferred embodiment, which is comparable with the viewing direction with FIG. 5,

12 shows a sectional view along section line XU-XU in FIG. 11, the closing cover being shown differently in the closed position on the half-side on the left, 13 shows an enlarged detail of a cross-sectional area which, in the detail XUI-XUI shown in FIG. 12, lies behind the recess of the centering bead in the viewing direction, and

FIG. 14 shows a further enlargement of the section xrv-xrv compared to FIG. 13.

Fig. 1 shows a longitudinal section of a preferred embodiment of the closure cap 1 according to the invention, which is also particularly suitable for closing a rapid with screw mouth filled with cooking oil. This has a circular cover 2, a cylindrical cover 3 and a spout 4. This extends with a spout 5 to a drip edge 6, the profile of the spout being designed differently in the circumferential direction (cf. also Rg. 5). The closure cover 2 is shown in an open position pivoted by 180 ° about a hinge-like tab 7 with respect to the closed position, with an overall one-piece design being present. The closure cover 2 has a head plate 19, ie a head cover, from which - based on the state of the closure - an annular seal 8 protrudes on the underside. For adaptation to an oily filler of a bottle to be closed, which tends to form drops, such as, for example, cooking oil, 4 tongue segments 11 are integrally formed on an inner wall surface 9 of a cylindrical wall 10 of the spout in the circumferential direction. These extend radially inward while keeping a central passage cross section 12 (cf. also Rg.4) and, starting from the inner wall surface 9 up to the radially inner free end, have a conical taper. As a result, a gap 13 of approximately constant width in the radial direction is left between adjacent tongue segments 11. At the same time, the tongue segments 11 point towards their free end towards the underside of the closure, ie counter to the Ent direction of flow of a liquid, directional orientation. The tongue segments 11 soothe a liquid leaving a container through the cylindrical wall 10 as a pouring sleeve in such a way that gurgling and splashing as well as an abrupt passage are avoided. In the exemplary embodiment shown, a circular sealing membrane 14, which closes the outlet cross section, is formed all around the edge of the inner wall surface 9 with respect to the tongue segments 11 in the outlet direction, ie above. A pulling ring 16 extends from the top of the latter, starting from an edge-side connection point 15, which can be picked up with an extension and can be pulled off together with the closure membrane 14 from the closure cap. The closure membrane 14 is irreversibly detached from the cylindrical wall 10 along a circumferential, wall thickness-reduced tear joint 17. The cylindrical wall 10 of the spout 4 is adjoined radially on the outside by an annular cover 18 which is essentially at right angles in longitudinal section and which in turn merges radially on the outside into the sealing jacket 3. As is particularly clear in connection with Rg. 5, the ring cover 18 carries a centering bead 20 on the upper side. In the exemplary embodiment shown, this extends only along the peripheral partial region, which lies outside the peripheral region designated by Rg. 5 with the angle α. Furthermore, according to the invention, an internal thread 21 is realized on the closure jacket 3, which can be screwed onto an external thread of a PET snap-on mouth (cf. Rg.2). Finally, in the preferred embodiment shown, a guarantee and tear-off strip 23 is integrally formed on the underside of the closure casing 3 on the underside with webs 22 distributed along the circumference. In its lower edge region, this has an annular bead 24 protruding from its inner wall in profile, which, when mechanically closing a flap with radial expansion via a counter bead 25 projecting from the outside of the flap mouth is forced (see Rg.2). When the closure cap 1 is screwed on for the first time, it is pulled off by the thread pitch from the guarantee and tear-off tape 23 hooked onto the counterbead 25 by means of the annular bead 24 while tearing at least individual webs 22.

Rg. 2 is in a longitudinal section in relation to Rg. 1 at right angles in the left half of the drawing the closed position and in the right half of the drawing again the open position, however, can be seen in the state screwed onto a rapid mouth 26. In the example shown, the rapid mouth 26 is a standardized rapid mouth of the PCO type which carries an external thread 27 and which is used for a nominal diameter of 28 millimeters for PET rapid. As an alternative, however, the closure cap 1 could also be screwed onto another screw mouth, for example of the BPF type. Rg. 2 can be seen in the right-hand, the screwed-in snap mouth 26 with the image half showing that there are a total of three annular sealing zones with the closure cap 1 in the region of the mouth edge 28. On the one hand, the cylindrical wall 10 is substantially rectilinearly extended into a sealing lip 29 towards the underside of the closure, the outer diameter of which - as indicated only schematically - is slightly larger than the inner diameter of the rapid opening 26, the radius or diameter difference being a result of in practice a material deformation is recorded and thereby a back pressure is built up for a sealing system. When the closure cap 1 is screwed on, the cylindrical wall 10 slides on the inside of the rapid opening 26 with a slight radial compression, so that an inner seal is created. In addition, there is an outer seal between a cylindrical sealing inner wall 30, the diameter of which is approximately the same or slightly smaller than the diameter of a sealing outer wall 31 assigned to the rapid opening 26. Finally, a so-called head seal device added, which takes effect between the end face 32 of the rapid opening 26 and a step 33 projecting from the ring ceiling 18 on the underside. The left half of the figure in FIG. 2 also shows a seal between the closure cover 2 and the closure base, more precisely the cylindrical wall 10 connected to the closure casing 3 by means of the ring ceiling 18. For this purpose, the ring seal 8 protruding from the head plate 19 has an outer diameter which, in the selected example, is slightly larger than the inner diameter of the cylindrical wall 10 in a length section assigned for sealing. For illustrative purposes only, these conditions are indicated by an overlap, which in practice - depending on the design and choice of dimensions - is replaced by a certain compression of the ring seal 8 and / or a certain radial expansion of the wall 10. As can be seen particularly clearly in connection with Rg. 5, the centering bead 20 in the sectional plane of Rg. 2 has two inwardly directed recesses 34 which lie opposite one another on the circumference and which positively cooperate with latching cams 44 of the closure cover 2 in order to prevent rotation Closing a rapid mouth with the closure cap 1 in a filling system to release the hinge-like tab 7. A groove 35 is also formed in the region of the recesses 34 between the spout mouth 5, which widens outward only comparatively slightly in the longitudinal section of FIG. 2, and the centering bead 20. This serves as a backing for a small amount of liquid that has been sheared off at the drip edge 6 in the wedge-shaped profile, so that it cannot contaminate the outer surface of the sealing jacket 3. In comparison, in the right half of Rg. 1, that is, apart from the recesses 34, the groove 35 is widened, while on the opposite side (cf. left half of Rg. 1) a throat between the ring ceiling 18 and itself is in its place occurs radially up to its edge region spout 5. Again with reference to the right half of picture 2 it is also clear that the a pouring sleeve-forming cylindrical wall 10 - viewed in the longitudinal direction - is connected in the region of its upper third to the ring ceiling 18, which in turn extends adjacent to the end face 32 of the rapid opening 26. This contributes to the fact that, despite a comparatively large length of the pouring sleeve that favors the pouring behavior, which in the example lies between a third and a quarter of the pouring diameter, a comparatively small axial projection of the pouring sleeve over the end face 32 means that the overall axial height is low Cap 1 is to be realized

3 shows the preferred embodiment of the closure cap 1 in a side view, the left half being a view in the Uta viewing direction according to Rg.7 and the right half in the opposite viewing direction Ulb, in each case in the closed position. In the selected exemplary embodiment, the closure cap 1 - shown in enlarged form - together with the guarantee and tear-off tape 23 formed on the underside thereof in the original size has a total height H of 21.3 millimeters. The height h without the guarantee band is approximately 16.25 millimeters. The largest outer diameter D has the closure cap 1 in the region of its lower edge 37 with 30.5 millimeters in the selected example. A smooth outer surface 38 adjoins the edge 37 and a comparatively wider ribbed outer surface 39 adjoins it on the upper side. The upper side of the ribs 40 running in the longitudinal direction of the closure is flush with the smooth lateral surface 38 in the transition. In the example, a conical tapering of the lateral surfaces 38, 39 is provided towards the top of the closure, the cone angle k being approximately 1 degree. In the exemplary embodiment selected, the rib eroding structure is designed as a surface according to VDI 3400 Ref. 27. With regard to its internal thread 21 adapted to BPF or the PCO rapid mouths, as well as the aforementioned external dimensions, the closure cap is 1 geometrically adapted to a closure head of a filling system, which is suitable for screwing conventional plastic screw caps for drinks onto PET bottles. Opposite the hinge-like tab 7, an inclined surface 41 is provided on the lateral surface 39, with the ribs 40 partially missing, which has a greater inclination than the cone angle k, so that the adjacent sealing cover 2 projects radially outward beyond its upper edge to form a grip edge.

Rg.4 shows in a bottom view according to viewing direction IV according to Ed. 1 again the space-saving structure of the closure cap 1, which saves space in the radial direction and thus leaves a large outlet cross-section of the spout 4. The central curvature 42 is a gating point on the closing membrane 14.

5 shows a plan view of the closure cap 1 in the viewing direction V according to Rg. 1. It becomes clear that the pouring mouth 5 is extended radially like a shield over a circumferential angle range α of 120 degrees. Due to the inclination β illustrated in Rg. 1, the drip edge 6 in this circumferential segment also achieves a greater axial distance from the ring ceiling 18. The spout mouth 5 extends as an elastic spring lip in the open position shown in Rg. 1 with the drip edge 6 in the axial or longitudinal direction of the closure up to a reference plane E, which in the closed position shown in FIG. 7 coincides with the underside of the head plate 19. At a transition to the closed position, the protruding outer edge of the pouring mouth 5 is resiliently bent back by the head plate 19, so that an overall low axial height can be achieved with regard to the closed state (cf. Rg. 7). When opening, an automatic erection takes place so as to be resilient, so that a spout 4 with a shape that is favorable for the pouring behavior is available for a long time. Rg. 7 also shows that in the closed position the centering bead 20 cooperates with a ring groove 43 of the closed lid 3 in a centering manner. The situation shown in the longitudinal section of Rg. 6 differs from Rg. 1 in that there the closure membrane 14 with the pull ring 16 is already separated from the cylindrical wall 10.

A further preferred embodiment of the closure cap according to the invention differs from the embodiment described in the figures in that the pouring mouth 5 and the centering bead 20 (except for the recess 34) are formed over the entire circumference in accordance with the right half of figure 1 ,

8 shows in a longitudinal section a further preferred embodiment of the closure cap 1 according to the invention, elements or details corresponding to the preceding figures being provided with corresponding reference numerals. 8 shows the closure cap 1 in an open position, in which the closure lid 2 is opened by a hinge-like tab 7 in relation to its closed position by 180 degrees. The deviation from the previous Rguren is that the pull ring 16 is molded onto the closure membrane 14 in an inclined position, so that in the open position it extends beyond a reference plane E, which coincides with the underside of the head plate in the closed position of the closure cover 2 (cf. Margin 10). In the oblique rest position shown in FIG. 8, the pull ring 16 extends in a reference plane F which, with the aforementioned reference plane E, includes an angle of inclination γ of approximately 12 degrees in the selected example. The connection point 15, ie the injection area on the sealing membrane 14, represents the section of the pull ring lying lowest in the longitudinal direction L of the lock, while that on the circumference of the pull ring 16 is opposite. de handle portion 45 forms the highest point. On the handle section 45, the underside 46 of the pull ring 16 extends from the closure membrane 14 or the connection point 15 in the longitudinal direction of the closure in the example up to approximately the level of the drip edge 6 of the embodiment shown in the right half of margin 8. Furthermore, in the open position shown there is a minimum grip distance G between the grip section 45 and the pouring mouth 5, which corresponds approximately to the cross-sectional height K of the pull ring 16.

Rg. 9 shows another, rotated by 90 degrees compared to Rg. 8, i. H. right-angled longitudinal section of the further preferred embodiment shown in Rg. 8. The right half of the picture in turn relates to the open position of the closure cover 2, the closure cap 1 (in deviation from Rg. 8 and 10) being shown in the state screwed onto a rapid mouth 26. It can be seen that the pull ring 16 also extends in an inclined position in this viewing direction or projection plane starting from the connection area 15. The left half of the figure relates to the same sectional plane, but (different from Rg. 8) shows the closed state of the closure cover 2, in which it cooperates with the ring seal 8 sealingly with the cylindrical wall 10 of the closure cap base. The left half of the figure shows that the upper edge of the pull ring 16 is resiliently supported against the underside of the top plate 19 of the closure cover 2.

Rg. 10 shows the closed state again using a longitudinal section, the cutting of which is identical to that in Rg. 8. It is also clear here that the pull ring 16 is resiliently supported against the closure cover 2 over the almost entire length of its upper edge. The left half of the picture also shows that the resilient reset is also the pouring mouth 5 is due to a support of the drip edge 6 in the area of the ring groove 43 of the closure cover 2. Depending on the configuration, an elastic reshaping of the pouring mouth, which leads to a reduction in the axial overall height in the closed position, can alternatively or in combination also be brought about by an abutment on the underside of the top plate between the ring seal 8 and the ring groove 43.

11 shows a top view of the closure cap according to the invention in a further preferred embodiment with respect to the viewing direction with Rg. 5. Herein is indicated with two each over a circumferential angle γ of approximately 90 ° extending circle segments 47, the position of a first, between an outer circumferential surface 48 of the centering bead 20 and an inner circumferential surface 49 of a centering 50 starting from the ring groove 43 of the sealing cover 2 achievable locking engagement 51. The pitch circle 52 designates a second locking engagement 53 lying radially on the inside, which can be achieved continuously over the circumference between an outer peripheral surface 54 of the ring seal 8 and an inner peripheral surface 55 of the mouth 5 by pressing the closure cover 2 shut.

Rg. 12 shows the situation in a sectional view along the section line XU-XU according to Rg. 11, whereby in Rg. 12 in the left half of the picture the closing cover 2 is shown closed in deviation from Rg. 11. As can be seen, the section leads through the two opposite recesses 34 of the centering bead 20 and (in the left half of the figure) through the projection 44 of the closure cover 2 which can be accommodated therein to prevent rotation. The ring groove 43 which is thereby covered in the viewing direction is shown in dashed lines, as is the locking engagement 51 adjoining the centering wall 50. The cross section lying behind the recess 34 in the viewing direction is shown enlarged in margin 13. Here, as in the times enlarged Rg. 14 clearly that the locking engagements 51 and 53 can be achieved by ribs 56 which alternately project radially with respect to the longitudinal or symmetrical axis of the closure cap 1. In view of the example of the same cross section of the ribs 56, these are provided with the same reference numerals. The difference, as already explained, is that the ribs 56 of the latching engagement 51 are only formed in sections around the circumference, whereas those ribs 56 of the latching engagement 53 are continuous over the circumference. The alternately radially protruding ribs 56 form, as it were, a form-fitting tooth engagement which has a certain amount of side play in the area between the ribs 56 of free cross sections 58. The ribs 56 each have the shape of an isosceles triangle in cross section, the apices 57 of the ribs 56 touching the opposite surface during the latching engagement 51, 53. It is also shown that the apex distance A between two adjacent ribs 56 starting from the same surface is wider than the base area G of a rib 56

All of the features disclosed are (in themselves) essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims

EXPECTATIONS

1. Closure cap, in particular for a rapid filler with edible oils, comprising an essentially circular closure lid (2), an essentially cylindrical closure jacket (3), a spout

(4), which widens at least in a peripheral partial area of the outlet cross section with a pouring mouth (5) towards a drip edge (6), and tongue segments (11), which are integrally formed on an inner wall surface in the circumferential direction and are free while keeping a central one Extend the passage cross section radially inwards, the closure cap (1) being formed in one piece, characterized in that the closure jacket (3) has an internal thread (21) which can be screwed onto an external thread of a rapid opening.

2. Closure cap according to claim 1 or in particular according thereto, characterized in that the outer contour of the closure cap (1) is geometrically adapted to a closure head of a filling system, which is suitable for screwing plastic screw closures onto PET brackets, in particular with a BPF or PCO mouth is.

3. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the closure jacket (3) tapers conically on the outside towards the closure cover (2), the cone angle (k) preferably in a range from 0 to 0 in a longitudinal section , 2 and 1 degree.

4. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the axial The overall height of the closure cap (1) is between 16 and 17 millimeters, preferably about 16.25 millimeters.

5. Cap according to one or more of the preceding claims before or in particular according to it, characterized in that the largest

Outside diameter of the sealing jacket (3) in the range between 30.1 and 30.5 millimeters, preferably 30.5 millimeters.

6. Cap according to one or more of the preceding claims - before or in particular afterwards, characterized in that the spout

(4) has an essentially cylindrical wall (10), which in a longitudinal section towards the underside of the closure is essentially straight into a seal, the outer diameter of which is approximately equal to or slightly larger than the inner diameter of a rapid mouth, in particular a BPF or PCO mouth, is.

7. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that an annular cover (18) is integrally formed on the outside of the cylindrical wall (10) which merges radially on the outside into the closure jacket (3).

8. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the ring cover (18) carries a centering bead (20) on the upper side in at least one partial circumferential region, which has a ring groove (43) of the closure cover (2 ) cooperates centering in its closed position.

9. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the Zen trierwulst (20) has radially inwardly directed recesses (34), which interact positively with locking cams (44) of the closure cover (2) as an anti-rotation device.

10. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pouring mouth (5) extends as an elastic spring lip in an open position of the closure cover (2) beyond a reference plane (E) which is in the closed position of the closure cover (2) coincides with the underside of the head plate.

11. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pouring mouth (5) extends in the radial direction up to the edge region of the ring cover (18), in particular in a longitudinal section with the pouring mouth (5) a plane perpendicular to the longitudinal axis of the closure cap (1) encloses an angle of approximately 20 degrees.

12. Closure cap according to one or more of the preceding claims, before or in particular according thereto, characterized in that the drip edge in the closed position of the closure lid (2) cooperates with the latter in a centering manner.

13. Closure cap according to one or more of the preceding claims, before or in particular according thereto, characterized in that, in the closed position of the closure cover (2), the distance between the drip edge (6) and the ring cover (18) in the longitudinal direction is approximately 1- to 2 times, preferably about 1.5 times, the top plate wall thickness.

14. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that an annular seal (8) protrudes from the underside of the head plate (19) of the closure cover (2), the outer diameter of which is approximately equal to or slightly larger than the inner diameter in an assigned length section of the cylindrical wall (10).

15. Closure cap according to one or more of the preceding claims, before or in particular according thereto, characterized in that a closure membrane with a circumferential tear joint and an upper pull ring is formed on the inside in the cylindrical wall (10)

16. Closure cap according to one or more of the preceding claims - before or in particular according thereto, characterized in that a guarantee band (23) is formed on the underside of the closure jacket (3), with which the axial overall height together is a total of 21-22 millimeters, preferably 21, 3 millimeters.

17. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the closure cover (2) is articulated on the closure jacket (3) with a hinge-like tab (7).

18. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the closure cap (1) is subjected to plastic injection molding, in particular made of polyethylene or polypropylene.

19. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the tongue segments (11) on the cylindrical wall (10) are molded in the lower end region thereof.

20. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the tongue segments (11) taper towards their free end and run in a directional manner towards the underside of the closure.

21. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pull ring (16) is molded onto the closure membrane (14) in an inclined position, so that the pull ring (16) is in an open position of the closure cover (2). Starting from the closure membrane (14), it extends resiliently beyond a reference plane (E), which in the closed position of the closure cover (2) coincides with the underside of the top plate

22. Cap according to one or more of the preceding claims - before or in particular according to it, characterized in that in one

Open position of the closure cover (2) of the pull ring (16) starting from the closure membrane (14) extending beyond the drip edge (6), in particular up to the region of the drip edge (6) which is the most upright in the longitudinal direction of the closure (L).

23. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that in an open position of the closure cover (2) the pull ring (16) with its underside (46) facing the closure membrane (14) from the closure membrane (14) extending in the longitudinal direction of the closure (L) to at least approximately at the level of the drip edge (6) and / or the reference plane (E).

24. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pull ring (16) on the upper side of the closure membrane (14) starting from an edge-side connection point (15) in an inclined position up to a handle section (45) opposite on the circumference of the pull ring. of the pull ring (16) extends.

25. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pull ring (16) extends in a plane (F) which, with a plane perpendicular to the longitudinal axis of the closure (L), has an inclination angle in the range from 8 to 16 degrees, preferably about 12 degrees.

26. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the pull ring (16) is resiliently supported against the closure cover (2) in the closed state of the closure cover (2).

27. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that in an open position of the closure cover (2) there is a minimum grip distance between the grip section (45) of the pull ring (16) and the pouring spout (5)

(G), which is preferably between 1 and 5 millimeters and more preferably about 2 to 3 millimeters.

28. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that on the outer peripheral surface (54) of the ring seal (8) and the inner peripheral surface (55) of the mouth (5) to form a releasable locking engagement (53) suitable ribs (56) are provided.

29. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the ribs from the ring seal (8) and the mouth (5) protrude alternately radially with respect to the longitudinal or symmetry axis of the cap and in particular continuously in the circumferential direction are trained.

30. Closure cap according to one or more of the preceding claims, or in particular according thereto, characterized in that on the outer circumferential surface (48) of the centering bead (20) and the inner circumferential surface (49) one of the ring fillet (43) of the closure cover (2 ) outgoing centering wall (50) to form a releasable locking engagement (51) suitable ribs (56) are provided.

31. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the ribs (56) alternately project radially from the centering bead (20) and the centering wall (50) with respect to the longitudinal or symmetry axis of the closure cap.

32. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the ribs (56) on the centering bead (20) and on the centering wall (50) into one another of the associated circumferential sections, in particular in circumferential sections over a respective circumferential angle (γ) of approximately 90 degrees, are provided running in the circumferential direction.

33. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that two circumferential sections are provided, one of which adjoins one side on a circumferential angle region (et) in which the pouring mouth (5) is shield-like with respect to the rest of the circumference is extended radially further.

34. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that the ribs (56) each have the shape of a triangle in cross section, in particular an isosceles or equilateral triangle.

35. Closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the locking engagement (51, 53) forming, from mutually associated opposing surfaces extending ribs (56) during the locking engagement with their apex (57) the opposite Touch the surface.

36. Sealing cap according to one or more of the preceding claims or in particular according thereto, characterized in that the distance (A) between two adjacent ribs (56) starting from the same surface is wider than the base area (G) of a rib (56) ,

37. Cap according to one or more of the preceding claims or in particular according thereto, characterized in that between each two adjacent ribs (56) during the locking engagement a free cross section (58) remains.

38. Closure cap according to one or more of the preceding claims, before or in particular according thereto, characterized in that the number of ribs (56) per surface and locking engagement is between five and ten, preferably six.

39. Closure cap according to one or more of the preceding claims, before or in particular according thereto, characterized in that the cross-sectional dimensions of the ribs (56) are adapted to a compliance suitable for closing and opening the latching engagement (51, 53).

40. A closure cap according to one or more of the preceding claims or in particular according thereto, characterized in that the two

Latching engagements (51, 53) overlap each other in the longitudinal or symmetrical direction of the closure cap.