JP2006036360A - Sealing device for container, bottle in particular - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing device for a container, a bottle in particular capable of accomplishing specific releasing pressure when the pressure reaches estimated inner pressure, and after that state, re-sealing the container completely. <P>SOLUTION: This invention relates to a sealing device for a container, a bottle in particular, having an upper top wall, either a circumferential flange or a skirt adjacent to the top wall outside the top wall, having a seal insertion member arranged at the lower surface of the top wall, and the seal insertion member has a circumferential profile seal outside it. The upper top wall has at least a partial circumferential bulged-out portion for performing a mutual action with the profile seal to form a valve. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sealing device for a container, particularly a bottle, and in particular, comprises an upper top wall and a circumferential ridge or skirt adjacent to the outer periphery of the top wall, inside the top wall. Further, the present invention relates to a sealing device in which a sealing insertion member or a liner having a seal having a contour in the circumferential direction is disposed along the outer peripheral edge portion.

  Such sealing devices are known as (sealing) lids or (sealing) caps. The sealing device in the scope according to the invention is a non-reusable sealing device, in particular a bottle sealing device which can be configured, for example, as a crown sealing device or a tear-off sealing device. In either case, the upper top wall of the sealing device incorporating the seal having the contour is pressed against the top of the bottle at the sealing portion of the sealing device attached to the bottle. A circumferential band or ridge forming a cylindrical sealing skirt surrounds the bottle neck neck bead after sealing, and the lower part of the skirt provides a firm grip directly under the bead ring. Yes. In an embodiment of the crown sealing device, the skirt has a normal crown stamp or tooth that provides a moderate gripping force with a heel directed and lightly pressed just below the bead ring. In the case of a tear-off container sealing device, the skirt portion is squeezed just below the bead ring, and further has a stripping side defined by the top wall and the score line of the skirt portion, The elongate side for peeling extends as a tongue protruding beyond the skirt, and a gripping member, i.e. a grip ring, is connected to the tongue.

  Bottle sealing devices are both known as crown sealing devices and tear-off sealing devices in a wide range of embodiments. A constant problem is the handling of liquid in bottles saturated with carbon dioxide. For example, in order to ensure a high and consistent quality of carbonated beverages, the bottle must be securely sealed so that its sealing device eliminates carbon dioxide leaks. In this case, there is a problem that a considerably large internal pressure is generated in the bottle filled with the carbonated beverage. Such high internal pressures occur especially when full and sealed bottles are exposed to high temperatures and / or during violent operations such as during transport. The resulting non-negligible problem is that under such high pressures, there is a risk of explosion or bursting whether the bottle is made of glass or plastic. For bottle users and nearby third parties, there is a significant risk of injury.

  The same applies, for example, in the case of a crown sealing device, when such a high internal pressure causes the crown to move away from the bottle tip. For bottle-sealing device manufacturers and beverage manufacturers, or bottlers (carbonated beverage manufacturers), such risks are already unacceptable due to the risk of legal liability associated with them. However, nevertheless, filled and sealed bottles are placed under 6 bar pressure, for example during the beverage sterilization process, so that they can easily hold up to 6 bar pressure without any significant pressure loss Must. For this reason, crowns and other sealing devices are configured to remain firmly at the top even at internal pressures of 10 bar or less.

  Therefore, basically, it is necessary to create a bottle sealing device that minimizes the above-mentioned problems and that such a high internal pressure is opened through the sealing device. In this regard, it is known to use seals made of PVC (polyvinyl chloride), etc., which are particularly elastic, and these soft elastic PVC seals enable the release of pressure at high pressures. It is. However, for various reasons PVC is no longer available as a sealing material for foodstuffs, especially beverages. However, PVC-free sealing materials with a fairly high molecular density that are in practical use are less elastic or elastic and therefore cannot be reliably relieved at such high internal pressures. The re-seal after the pressure drop cannot be ensured.

  Already in 1956, the need to relieve pressure on bottles sealed with crowns was recognized. That is, a resilient metal sealing device in which a bulge or outflow stopper is formed on the upper top wall is combined with a liner of a special shape soft elastic sealing material. (See Patent Document 1)

  It is possible to relieve pressure in the case of carbonated beverages by placing a pressure relief valve at the long strip for tearing off, or at the connecting part or at the pulling member connected to it, in the sealing device of the peelable container. Are known. In that valve, the joint or grip of the cap skirt to the bottle is reduced in that area. (Refer to Patent Document 2) Such means is basically effective. However, they rely on soft elastic liner materials such as PVC and are therefore not applicable to other types of sealing devices such as, for example, crown sealing devices.

US Pat. No. 2,739,724 German Patent Application No. 3737467

  The object of the present invention is widely applicable to conventional bottle mouth neck bead parts, not only is it simple and inexpensive to manufacture and seal, but in addition, when a predicted internal pressure is reached, a specific opening pressure is achieved. It is an object of the present invention to provide a container sealing device, in particular a bottle sealing device, which can be achieved and then completely re-sealed.

  In order to solve this problem, the present invention relates to a sealing device for containers, in particular bottles, wherein at least one raised portion, for example at least a predetermined angle, is formed on the inner surface of the upper top wall (facing the seal insert). It is defined and taught to have a raised portion that extends over a region and rises in close proximity to or in close contact with a contoured seal to form a single discharge valve. According to the present invention, the upper top wall has an annular sealing liner on its inner surface with an outer protrusion adjacent to the lower wide ring located on the inner side. Together, they constitute a liner shape (profile seal) designed to interact with the raised portion, mold or shape defined as the upper top wall, thereby forming a discharge valve.

  In this case, the present invention starts with the following findings that have been experimentally verified. That is, when the top wall is provided with a raised portion on the inner surface, for example, a raised portion to be coupled with the portion of the profile seal, a pressing die, or a molding, and they are configured to interact with the profile seal. In particular, it can affect the sealing function. Therefore, by selecting an appropriate combination of profile seal and raised part, a predetermined internal pressure of, for example, 7-10 bar is released and, for example, automatically reduced again after a depressurization of 2 bar. It is possible to provide a sealing device that performs sealing. The risks of injury and related legal liability mentioned at the outset are removed in a simple and inexpensive way, and there is no need to accept the quality loss of the filled beverage. The position, shape, height and width of the raised portion is such that the sealing device begins to relieve pressure at a predetermined internal pressure level and complete re-sealing or resealing at a predetermined reduced pressure. Combined in the way that is done. In this case, the solution according to the invention functions in the same way as in the case of a tear-off sealing device and a crown sealing device. The operation of the sealing device is not affected by, for example, the score line of the peelable sealing device. It is not necessary to adapt to the bottle, and can be used for the conventional standard crown type bottle mouth and neck. This is valid for all known bottle neck and neck standards, including Europe, America (GPI), Japan and similar countries, all of which have a slightly different neck or neck profile or shape. The bottle can be made of glass or plastic. The “profile seal” means a seal portion having a stepped cross section.

  In one preferred embodiment, the profile seal is substantially L-shaped in cross section and comprises an outer first (lip type) seal ring and an inner second (flat) seal ring or seal surface. The outer seal ring has a higher height and / or a smaller width than the inner seal ring. In this case, the invention starts from the finding that such a profile seal can achieve a specific and especially reproducible pressure release, in particular in interaction with the ridges or bulges according to the invention. Yes.

  Known seals having a generally C-shaped liner cross section consisting of a high outer lip type seal ring, a low, rather flat central seal surface, and a high inner lip type seal ring are less than 10 bar Does not give any specific opening pressure. Of particular importance here is that any bulging or lifting of the top wall of the sealing device no longer has to be accepted. This is because the profile seal that operates without bulging or lifting the upper top wall constitutes a deaeration or discharge valve together with the raised portion.

  According to the first embodiment of the present invention, the raised portion or the raised portion has a steep downward slope on the side surface, for example, a circumferential shape forming a lower central plate of the upper top wall It is configured as a step. This step has, for example, the same radius and is configured as a completely circumferential step that forms the central portion of the circular cap when viewed from above. It should be understood that the step itself is radially arranged to interact with the profile seal forming the valve. To obtain the desired release effect, it can be adapted by adjusting various parameters. In one variant, the circumferential step can have a plurality of step sections, each having a different radius and extending over a predetermined angular region. Thus, the step is arranged over a predetermined circumferential region of one radius that satisfies a stronger discharge valve function with the profile seal, while the other region of the step forms a small valve. It can be located on different radii that simply possess the function. Therefore, in order to obtain the desired pressure relief or release effect, it can be further specified by selecting the corresponding circumferential region.

  The radius of the step or at least the section of the step is smaller than, equal to or slightly larger than the outer radius of the profile seal and / or larger, equal, or slightly smaller than the inner radius of the profile seal. Thus, the radius of the step is larger than the inner radius of the inner seal ring and includes any size up to the outer radius of the outer seal ring. Further, the discharge valve constructed by the interaction between the profile seal and the raised portion may have a radius greater than the outer radius of the profile seal or a radius smaller than the inner radius of the profile seal in some cases. It is possible to have a shape extending up to this point. However, the step or step section is sufficiently close to the profile seal to interact with the seal ring and thereby affect the seal characteristics of the profile seal.

  The angle of the surface of the step or step section with respect to the horizontal direction or the upper top wall is 40 ° to 90 °, for example 60 ° to 80 °. Again, the choice of angle provides a sensitive parameter in setting the desired release function. A steep angle of approximately 90 °, for example 80 °, can have a particularly strong influence on the sealing properties, and thus a stronger discharge effect can be achieved. However, it is also possible to work with flat angles of 10 ° to 40 °.

  In another embodiment, the ridges or reliefs can be configured as grooves or passages having a predetermined width and height, rather than a (single) step. The groove or passage extends around or extends around a predetermined angular area, the outer surface being downwardly inclined toward the center of the cap, and the inner surface being the cap surface. It is ascending toward the center. The inner surface of the upward gradient is directly adjacent to the outer surface of the downward gradient. However, it is also possible to make a flat base region between the two surfaces. The groove has a circular ring shape and is a complete circumferential groove when viewed from above, and can be configured to extend over the entire area of the cap, that is, over an entire angle of 360 °. is there. However, it is also possible to have a plurality of grooves or groove sections, each simply extending over a limited predetermined angular area. In the embodiment of multiple grooves or groove sections, it is possible to arrange all the grooves on the same radius. However, it is possible for the groove or groove section to be at least partially different in radius. The groove or groove section can be raised into the upper top wall during the manufacture of the sealing device. However, the present invention also allows the ridges to be configured as protrusions that are coupled to or molded on the inner surface of the upper top wall. The possible shapes described above in relation to the grooves are present here as well. However, all embodiments with raised grooves or steps are distinguished by their particularly simple fabrication.

  In embodiments having circumferential or partially circumferential grooves or protrusions, there are numerous possibilities to influence the annuloplasty effect by setting the desired parameters. Accordingly, the inclination angle of the surface having a downward gradient with respect to the horizontal and / or the inclination angle of the surface having an upward inclination with respect to the horizontal is 40 ° to 90 °, for example, 60 ° to 80 °. The tilt angle can also be 5 ° to 40 °, for example 10 ° to 40 °. The grooves or protrusions can be configured symmetrically or asymmetrically, i.e. so that the tilt angles are the same or not equal. Therefore, it is appropriate if the outer surface is formed as a steep surface and the inner surface is formed as a flat surface, and vice versa. Also, the desired degassing effect is sensitively affected by selecting a matching radius of the groove or groove section for the profile seal. Thus, in the present invention, the outer radius and / or inner radius of the groove or at least one groove section is less than or equal to the outer radius of the profile seal and / or the inner radius of the profile seal. Is suggested to be greater than or equal to. The groove or groove section is at least partially disposed in the region of the profile seal. They can be placed completely in the outer seal ring region, or they can be placed completely in the inner seal ring region. Further, the groove or groove section can extend from the outer seal ring region to the inner seal ring region. Further, the inner radius and / or outer radius of the groove may be slightly smaller than the inner radius of the profile seal, or the outer radius and / or inner radius of the groove may be less than the outer radius of the profile seal. Can also be made slightly larger. However, the groove or at least one groove section must be close enough to the profile seal to interact with the profile seal and thereby affect the sealing properties of the profile seal.

  The width of the groove is preferably 1 mm to 4 mm, for example 1 mm to 3 mm. The height of the groove or step is 0.1 mm to 0.8 mm, for example, 0.2 mm to 0.6 mm.

  According to the present invention, the top wall forming the sealing device with the joined skirts or ridges is made of metal, for example, tin plate, aluminum or tin-free steel and their suitable alloys, and other metals. It is done. The sealing insert or liner disposed inside the top wall is preferably made of a single piece of plastic. The sealing insert or liner is preferably made of polyethylene (PE), for example, low molecular density PE (LDPE) or a modification thereof that does not contain a corrosive agent. In any case, it is preferable to use PVC-free plastic.

  The thickness of the shell of the (metal) sealing device, that is, the shell (top wall and skirt) is 0.15 mm to 0.25 mm, for example, 0.17 mm to 0.24 mm, preferably 0.17 mm to 0. .21 mm. As already explained, the sealing device can be configured as a peelable sealing device or as a folding sealing type crown. The diameter of the sealing device is approximately 18 mm to 45 mm. Crown sealing devices are usually made with a diameter of 26 mm to 27 mm. The seal insertion member within the scope of the present invention is preferably configured as a liner with the entire surface having a circumferential profile seal on the outside and a lower central portion that does not itself have a sealing function. Such a liner is preferably formed by compression molding directly into a sealing device having a pre-assembled raised portion and is formed on the inner surface of the upper top wall. However, it is also possible to assemble the seal insertion member in a separate manufacturing process, for example, stamped from a plastic sheet extruded from an extruder and then affixed to the inner surface of the upper top wall, for example, adhered with an adhesive. The

  The sealing device according to the present invention can be widely used in conventional bottle mouth neck bead parts, and is not only simple and inexpensive to manufacture and seal, but also has a specific opening pressure when the predicted internal pressure is reached. Is achieved, and after that, it is possible to completely reseal.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  Each figure shows a sealing device for a bottle or other container opening. FIG. 1 shows the basic structure of a bottle sealing device in an embodiment as a peel-off type sealing device. The sealing device consists of an upper round top wall 1, adjacent to this top wall and outside it, during sealing, surrounds the bottle neck 3 and below the bead 4 or the bottle neck flange. There is a substantially cylindrical heel or skirt 2 that grips the. Inside the top wall 1 is a seal liner 5 (not visible in FIG. 1) having a circumferential profile seal 6 around its outer circle. As can be seen from FIG. 1, the peel-off type sealing device has a stripping opening elongate side 7 with a tongue piece 8 protruding from the cap skirt 2, and the stripping elongate side is a sealing device. It is clarified by the score lines 9, 9 'arranged in The score lines on either side are usually the same length, but can vary from half length 9 'to full length 9. The tongue piece 8 is coupled to the tension member 10. Different embodiments of such a tear-off sealing device according to the invention are shown in FIGS.

  In contrast, FIG. 2 shows the bottle sealing device in the embodiment as a crown sealing device, in which the circumferential skirt 2 comprises a normal raised ridge or tooth 11. Yes. Different embodiments of such a crown sealing device according to the invention are shown in FIGS.

  According to the invention, the top top wall 1 has one or more at least partly circumferential protrusions 12, 12a, 12b, 13, 13a, 13b, the lower surface of which is a seal insertion member 5 Opposite to. These protrusions are raised and interact with the profile seal 6 to form a discharge valve, and further project or project into the area of the profile seal 6 for that purpose. These reliefs are not shown in FIGS. The profile seal is configured as a substantially L-shaped cross section having an outer first seal ring 6a and an inner second seal ring 6b, and the outer first seal ring 6a is formed from the second seal ring 6b. The height is large and the width is small.

  In the embodiment according to FIGS. 3 to 7 and FIGS. 15 to 17, the ridges or bumps are configured as circumferential steps 12, 12a or 12b having a downwardly inclined surface 14 towards the cap center M. . In this method, the pressing cap center region 15 is formed in the range of the center of the cap, thereby providing the entire lower central wall portion 15. For example, the comparative study of FIGS. 3 and 15 clearly shows that the relief according to the present invention can be provided in exactly the same way for both a peel-off seal device and a crown seal device. Yes. Its principle of operation is not affected by the score line of the tear-off sealing device.

  The step 12 in the embodiment according to FIG. 3 or FIG. 15 leads to the entire circumference or extends completely over an angle of 360 °, for example in FIGS. 4, 5 and 6, but with different radii R, R ′. An embodiment having a plurality of step sections 12a, 12b having According to FIGS. 4, 5 and 6, the step sections 12a, 12b each extend over a predetermined angular region δ, δ ′ or δ ″, where the step radii R, R ′ It means the upper radius which is the radius at the upper edge of the step.

According to FIG. 4, two circumferential steps 12a are provided, each leading to the periphery over an angle δ of approximately 150 ° to give a reduced discharge effect, said steps being having a substantially corresponding radius R to the inner radius P _i of the profile seal 6. On the diagonal line of these two steps 12a, a step forming section 12b for forming a valve is arranged, and its radius R 'is set so that the step 12b is arranged almost in the range of the outer seal ring 6a. . In this case, the two valve-forming step sections have different lengths. That is, they cover different angular regions δ ′ or δ ″. The same applies to the embodiment in FIG. 16 with four annuloplasty step sections 12b that span different angular regions. apply.

According to FIGS. 5 and 6, one step section 12a extends through an angle δ of approximately 320 °, and one step section 12b extends through an angle δ ′ of approximately 40 °. In the embodiment shown in FIG. 5, the step sections 12 a and 12 b are partially in the inner region of the profile seal 6. Step 12b of (upper) radius R 'and the step 12a (upper) radius R are both smaller than the outer radius P _a, is greater than the inner radius P _i. However, the radius of the lower step is smaller than the inner radius P _i of the profile seal 6. The low radius is the radius where the edge of the step is low. A flat step 12b having an inclination α of an angle of about 10 ° constitutes a discharge valve 12b, which releases the internal pressure to open the outer sealing lip 6a at a predetermined bottle internal pressure. To affect the inner seal ring 6b. This valve function is enhanced by a steeper step surface 12a having an inclination α of approximately 20 ° to 50 ° within the inner radius (P _i ) of the profile seal. The step 12b in FIG. 6 corresponds to the step 12b in FIG. Furthermore, there is also a step 12a leading over an angle δ of 340 °. Steep step 12a has an inner radius P _i is equal to or slightly smaller (the upper) radius R of the tilt α and the profile seal 6 of approximately 60 °. Its low at a radius smaller than P _i is the difference in level is close enough to influence the inner sealing ring 6b. The valve function is completed by a flat step 12b having an inclination α of approximately 10 ° forming a narrow discharge valve.

  In the embodiment shown in FIGS. 8 to 14 and FIGS. 18 and 19, the relief is a groove or bead 13, 13a with a predetermined width B and height H that extends over a predetermined angular region. 13b, each of the grooves having an outer surface 16 that is inclined downward toward the cap center and an inner surface 17 that is inclined upward toward the cap center M. Here, the width B means an “upper width” which is the entire width of the groove in the range of the upper edge. In the embodiment shown in FIGS. 8, 9, 10 and 19, the groove 13 is configured as a completely circumferential annular groove 13. That is, the groove 13 extends over the entire angle region or the entire angle of 360 °. The discharge effect can be specifically set by the position of the groove 13 with respect to the profile seal 6. Thus, FIG. 10 shows an embodiment with a smaller release effect compared to FIGS. The reason is that the groove according to FIG. 10 is further displaced into the region of the inner seal ring 6b. However, the groove 13 is similarly configured as a completely circumferential groove. In contrast, for example, in FIGS. 11 and 12, a plurality of groove sections 13a, 13b are provided, each of which simply extends over a limited angular region δ, δ ′ or δ ″. Show.

In a comparative study between FIG. 12 and FIGS. 12a and 12b, each of the four grooves 13a-13b is configured differently. For example, two grooves 13a with a very strong valve effect are provided with their outer faces 16 located in the region of the outermost (or somewhat outer) edge of the profile seal. The outer groove radius R _a is approximately equal to or somewhat larger than the outer radius P _a of the profile seal 6 in this region. Groove radius R _i of the inner, in this area, the outer radius P _a smaller than, larger radius P _i inside of the seal 6 of the profile seal 6. Another weak opening pressure valve effect is achieved by two grooves 13b of the same length lying diagonally. In that case, the downwardly inclined outer surface 16 extends over substantially the entire width B of the profile seal 6.

  FIG. 11 shows an embodiment with one long groove section 13b extending over an angle δ and one short groove section 13a extending over an angle δ ′ as a discharge valve. Groove 13b is completely within the region of the profile seal, while groove section 13a is only partially within the region of the profile seal. The groove surface 16 of the groove 13a has a flat slope and is partly outside the profile seal so as to increase the release effect.

FIG. 14 further provides a plurality of groove sections 13a, 13b, all of which are of the same shape but arranged on different radii R _a , R _i . Thus, the two diagonal short grooves 13a are arranged on a relatively large outer radius R _a and an inner radius R _{i in} the range of the lip-shaped outer seal ring 6a, while shown in FIG. 14b. relatively long groove 13b in this way, further a range of flat inner sealing ring 6b, reduced, is disposed over the outer radius R _a and inner radius R _i. The valve function here is almost dominated by the two outer grooves 13a. Here, the groove sections 13a, 13b are substantially U-shaped cross sections.

  What is clearly shown in the comparative analysis of the various exemplary embodiments is that the configuration of the raised portions 12, 12a, 12b, 13, 13a, 13b according to the present invention can be used for a desired environment and in particular. It can be applied in many ways to the seal shape. Therefore, the angle of the step inclination α can be configured to have an angle of 45 ° to 90 °, for example, 60 ° to 80 °, which is relatively steep relative to the horizontal. (See FIG. 3a) However, it is also possible to select a flat angle of inclination α within a range of steps of, for example, 10 ° to 45 ° (see FIG. 4a). The angles of the inclinations β and γ of the circumferential grooves 16 and 17 can be selected in the same manner. For example, FIG. 8 a shows an embodiment in which the slope β of the outer surface 16 has a relatively steep angle, and then a relatively flat uphill inner surface 17 is adjacent to this surface 16. . The opposite arrangement is given, for example, in the embodiment of FIG. 12b.

  Furthermore, the figure is clear that the L-shaped profile seal 6 can also be adapted to various environments with limitations. The outer seal ring or seal lip 6a, which is substantially vertical and facing downward, is always realized, and the seal lip 6a is provided on the outer top 3a and the outer surface 3b of the bottle neck 3 to provide a sufficient seal. Upon sealing above, it is compressed with the inner surface 18 as shown in FIG. 20 or FIG. In contrast, the inner seal ring or surface 6b is flat and is therefore softly compressed onto the top surface 3a without surrounding the inner surface 3c of the bottle. In this way, during the pressure increase, the inner seal ring 6b bends to cause pressure release. Further, as can be seen from the figure, the lower seal surface 19 of the inner seal ring 6b is arranged substantially horizontally. In this case, substantially horizontal means an embodiment in which the sealing surface 19 is inclined at an angle of 1 ° to 20 °, for example 15 °, which is relatively small in one direction or the other direction with respect to the horizontal. Is included. For this purpose, reference should be made to FIGS. 18 and 19, which show a suitably inclined sealing surface 19. Of particular importance, however, is that the inner seal ring surrounds the inner face 3c of the bottle neck and neck (type: C-shaped profile seal), is of sufficient height and from the outer seal ring or lips This means that the actual inner seal ring at a distance prevents or strongly reduces the pressure release and interaction with the raised portion of the profile seal.

  In each case, the thickness of the profile seal 6 and the efficiency of the seal are reduced to some extent by the raised part so that the sealing properties can be adjusted by selection of the shape, depth and position of the raised part. In addition, significant material savings can be achieved, and overall, a small change in tooling and the like makes it possible to take advantage of the prior art that has already been implemented, making manufacturing cheaper. Finally, the reinforcement of the cap provided by the raised part can be additionally achieved, which can advantageously influence the opening process, in particular by taking advantage of the lever effect. In this regard, for example, in FIG. 7, another upwardly-shaped stepped portion 20 is provided at a distance inside the profile seal inner radius, and there is no valve effect in that portion, but the reinforcing function Is satisfied. The same applies, for example, to the embodiments in FIG. 4, FIG. 12 or FIG. In these cases, the annuloplasty effect is achieved by a substantially “short” relief. On the other hand, the “long” shape along the tear line is of secondary importance in relation to valve formation, but the preferred lever arrangement facilitates tearing off of the sealing device.

  The figure further shows the bending radius r between the top wall and the step down slope surface 14 and between the step down slope surface and the bottom plate, and the top wall and step down slope surface 16. In the meantime, the bend radius r between the down-gradient surface 16 and the up-gradient surface 17 of the step and between the up-gradient surface 17 and the top wall is displayed. A clear bend of the raised portion is achieved at a small radius r, and a gentle bend of the raised portion is achieved at a large radius r. A clear bend affects the release valve effect more strongly than a gentle bend, increasing the flexibility of the present invention.

  FIG. 20 shows a state where the peel-off type sealing device of FIG. 6 is ready for sealing. FIG. 20a shows this sealing device after sealing with the skirts crimped inside.

  FIG. 21 shows a state in which the crown sealing device of FIG. 19 is ready for sealing. FIG. 21a shows this sealing device after sealing having a skirt pressed against the bottle neck 3 and further crimped slightly inward under the bottle neck.

It is a figure which shows the sealing device for bottles in the Example as a peeling-type sealing device. It is a figure which shows the sealing device for bottles in the Example as a crown sealing device. It is a figure which shows the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows one modification Example as a peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows one modification Example as a peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows one modification Example as a peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows the other Example of the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other Example of the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other Example of the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other modified Example of the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows one Example as a cut-out lid in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows one Example as a peeling type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. FIG. 6 shows a cross section of a further embodiment of the invention. FIG. 6 shows a cross section of a further embodiment of the invention. FIG. 6 shows a cross section of a further embodiment of the invention. It is a figure which shows the other modified Example of the peeling-type sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows the sealing device of the container by this invention in the Example as a crown sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other modified Example of the crown sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the BB line cross section of FIG. It is a figure which shows the other Example of the crown sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other Example of the crown sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the other Example of the crown sealing device in planar view. It is a figure which shows the AA line cross section of FIG. It is a figure which shows the target object in FIG. 6 in a seal | sticker. FIG. 6b shows the object in FIG. 6a during sealing. FIG. 20 shows the object in FIG. 19 during sealing. FIG. 19b shows the object in FIG. 19a during sealing.

Explanation of symbols

1 Top wall
2 Skirt
3 Bottle neck
4 beads
5 Seal insert
6 Profile seal
7 Long strip for opening
8 Tongue
9 Scoreline
10 Tensile member
11 teeth
12 steps
13 groove
14 Downhill surface
15 Cap central wall
16 Outer surface
17 Inner surface
18 Inside face
19 Seal surface

Claims (20)

An upper top wall (1) is provided, and a circumferential ridge or skirt portion (2) adjacent to the upper top wall (1) is provided outside the upper top wall (1), and a seal is provided on the lower surface of the upper top wall (1). In a sealing device for a container, in particular a bottle, in which an insertion member (5) is arranged, the seal insertion member having a circumferential profile seal (6) on its outside,
The upper top wall (1) has at least one raised portion, for example a raised portion (12, 12a, 12b, 13, 13a, 13b) extending on at least a predetermined angular region on the lower surface thereof. And wherein the raised portion is raised in the vicinity of the profile seal (6) or close to the profile seal (6) and interacts therewith to form a valve. .   The profile seal (6) has an outer first seal ring (6a) and an inner second seal ring (6b) and has a substantially L-shaped cross section, and the outer first seal ring (6a) 2. The sealing device according to claim 1, wherein the sealing device is higher in height and / or smaller in width than the inner second seal ring (6 b).   The raised portion or the raised portion on the lower surface is, for example, a circumferential step having a surface (14) that is inclined downward toward the center (M) of the top wall forming the central region (15) of the push-down cap ( 12. The sealing device according to claim 1, wherein the sealing device is configured as 12, 12a, 12b).   The circumferential step comprises a plurality of step sections (12a, 12b) having different radii (R, R ′) each extending over a predetermined angular region (δ, δ ′, δ ″). 4. The sealing device according to claim 3, further comprising: The radius (P and / or bottom) of the step (12) or at least the step section (12a, 12b) is less than or equal to the outer radius (P _a ) of the profile seal (6), and the profile seal (6) 5. The sealing device according to claim 3, wherein the sealing device is greater than or equal to an inner radius (P _i ). The (upper and / or lower) radius of the step (12) or at least one step section (12a, 12b) is slightly larger than the outer radius (P _a ) of the profile seal (6), and the profile seal (6) 6. The sealing device according to claim 3, wherein the sealing device is slightly smaller than the inner radius (P _i ).   The surface angle (α) of the step (12, 12a, 12b) with respect to the horizontal is approximately 40 ° to 90 °, such as 60 ° to 80 °, or approximately 5 ° to 40 °, such as 10 ° to 15 °. The sealing device according to any one of claims 3 to 6.   The raised portion or the raised portion of the lower surface is configured as a groove (13, 13a, 13b) formed in the upper top wall or a protruding portion adjacent to or formed on the lower surface, and the groove or protruding portion is It has a predetermined width (B) and height (H), and further has an outer surface (16) with a downward slope toward the cap center (M) and an inner surface with an upward slope toward the cap center (M). 3. Sealing device according to claim 1 or 2, characterized in that it has a surface (17).   9. Sealing device according to claim 8, characterized in that the groove (13) extends as an annular groove (13) over the entire angle.   9. The plurality of grooves or groove sections (13a, 13b) are provided so that each extends over a predetermined angular region ([delta], [delta] ', [delta] "). Sealing device.   11. Sealing device according to claim 10, characterized in that all of the grooves or groove sections (13a, 13b) have the same radius.   11. Sealing device according to claim 10, characterized in that the grooves or groove sections (13a, 13b) have at least partially different radii. The outer radius (R _a ) and / or the inner radius (R _i ) of the groove or at least one groove section is less than or equal to the outer radius (P _a ) of the profile seal (6); 13. Sealing device according to any one of claims 8 to 12, characterized in that it is greater than or equal to the inner radius (P _i ) of the profile seal (6). The outer radius (R _a ) and / or the inner radius (R _i ) of the groove or at least one groove section is (slightly) larger than the outer radius (P _a ) of the profile seal (6), 14. Sealing device according to any one of claims 8 to 13, characterized in that it is (slightly) smaller than the inner radius (P _i ) of the profile seal (6).   The angle (β) of the surface of the descending slope (16) with respect to the horizontal and / or the angle (γ) of the surface of the ascending slope (17) with respect to the horizontal is about 40 ° to 90 °, for example 60 °. The sealing device according to claim 8, wherein the sealing device is at an angle of 80 ° to 80 °. The angle (β) of the surface of the down-gradient surface (16) with respect to the horizontal and / or the angle (γ) of the surface of the up-gradient surface (17) with respect to the horizontal is 5 ° to 40 °, such as 10 ° The sealing device according to claim 8, wherein the sealing device is 15 °.   The sealing device according to any one of claims 8 to 16, wherein a width (B) of the groove is 1 mm to 5 mm, for example, 1 mm to 3 mm.   18. The sealing device according to claim 3, wherein a height (H) of the groove or step is 0.1 mm to 0.8 mm, for example, 0.2 mm to 0.6 mm.   The shape, position and, where appropriate, the width of the groove or step is set depending on the profile seal, so that, for example, the valve opens at a predetermined internal pressure of 6 to 10 bar, 19. The sealing device according to claim 1, wherein the valve is then closed again after the pressure has dropped by a predetermined difference, for example from 0.5 bar to 3 bar.   The bending radius (r) of the step is made 0.2 mm to 1.5 mm, for example 0.3 mm to 1.0 mm, or the bending radius (r) of the groove or groove section is 0.2 mm to 1. 20. Sealing device according to any one of the preceding claims, characterized in that it is made from 0 mm, for example from 0.3 mm to 0.8 mm.

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