EP0716638A1

EP0716638A1 - Sealing cap

Info

Publication number: EP0716638A1
Application number: EP95920034A
Authority: EP
Inventors: Frank Schellenbach
Original assignee: Individual
Current assignee: SCHELLENBACH, FRANK
Priority date: 1994-07-20
Filing date: 1995-05-12
Publication date: 1996-06-19
Anticipated expiration: 2015-05-12
Also published as: PL313519A1; PT716638E; ATE187405T1; HU9600687D0; PL178296B1; DE4425675C2; GR3032894T3; DE4425675A1; DK0716638T3; ES2142480T3; EP0716638B1; CZ285047B6; AU2563995A; SK36496A3; WO1996002430A1; CN1134136A; CN1042118C; RU2106293C1; AU677124B2; HUT74468A

Abstract

A sealing cap for releasably closing a container has a cap body matching the container to be sealed, a closing mechanism, which releasably seals the container and the cap body and a seal co-operating with an upper edge of the container in order to seal it when the closing mechanism is operated. In addition, the closing cap has at least one shoulder formed on the cap body which faces the upper edge of the container and with which the seal co-operates when the closing mechanism is actuated.

Description

Sealing cap

The present invention relates to caps for closing containers. In particular, the present invention relates to screw caps both for reusable bottles (MW) and disposable bottles (EW) made of the material PET as well as for GDB bottles which contain carbonated beverages.

The following discussion of the subject matter of the application and the prior art is limited to caps for closing GDB beverage bottles in order to keep the discussion clear. However, it is expressly pointed out that the present invention is not limited to caps for GDB beverage bottles, but is suitable for any type of container, such as, for example, also for food containers (so-called Tupper ware). Furthermore, the closure cap according to the invention can preferably be used both for reusable bottles (MW) and for one-way bottles (EW) made of the material PET.

Caps, with which beverage bottles or similar containers can be closed, have found widespread use. They generally have to meet different requirements. On the one hand, the sealing of the beverage bottles or containers must be achieved in such a way that the beverage contained in them cannot escape from the container in the closed or locked state. If the containers to be sealed are bottles containing liquids, then this requirement is determined by the viscosity of the liquid. Are the drinks contained in the bottles in addition, with a pressurized gas such. B. carbonated, then the seal must also be gas-tight to prevent the gas from escaping from the bottle.

In order to achieve the sealing functions mentioned above, closure caps according to the prior art have a device for sealing the vessel or container. A known method for sealing consists in the use of an elastic sealing ring, as is used, for example, in mason jars. In this process, the sealing cap and the sealing ring are manufactured separately and assembled after manufacture. As can be easily seen, this method is expensive and cumbersome to manufacture by two components. Another disadvantage of this method is known from daily use: The rubber ring slips relatively easily and thus prevents the container from being reliably sealed.

For this reason, sealing rings have already been proposed which have been designed as an integral part of the closure cap, which results in many advantages.

Such an example is known from EP-A-0 580 369, which relates to such a one-component bottle stopper. The cap has a sealing lip which extends inwardly from the cap body and which is an integral part of the cap. By screwing the closure cap onto the container, the sealing lip is pressed through the top of the bottle neck against the inner surface of the closure cap. The back pressure of the inner surface of the closure cap leads to a gas-tight seal of the container through the sealing lip. In order to avoid sticking of the sealing lip on the inner surface of the closure cap, a plurality is of its own provided radially inwardly extending grooves to avoid sticking. In EP-A-0 580 369, deviations from the tolerance limits of the sealing lip and the bottle neck dimensions are also taken into account.

The disadvantages of this known method lie in the actual sealing of the container: in the ideal case, nothing stands in the way of the gas-tight sealing of the container, but as soon as the upper edge of the container has slight unevenness and does not have a completely uniform surface, which is particularly likely with reusable bottles due to frequent use satisfactory sealing is no longer possible. In addition, it should be noted that the arrangement of the radial grooves or grooves on the inner surface of the closure cap cannot achieve a uniform seal. The desired sealing is not achieved at the locations where the grooves lie on the inner surface of the closure cap, since the pressure which is generated by the interaction of the inner surface of the cap and the upper edge of the container is lower at these locations because the Channels lead to a (here desired) deformation of the sealing lip. In those places where there are no grooves on the inner surface of the sealing cap, the pressure is greater, which leads to an uneven sealing. Finally, the fact that the grooves and thus the weaker sealing points are arranged radially results in an additional weakening of the sealing of the container, since the grooves to a certain extent lead to a bridging of the sealing.

The object of the invention is therefore to enable an improvement in the sealing of a container by means of a closure cap, without unnecessarily complicating or increasing the cost of producing such a closure cap.

This object is achieved by the closure cap defined in claim 1.

In particular, the seal according to the present invention is achieved by providing at least one shoulder which presses the sealant selectively against the upper edge of the container, thereby creating a sealing zone in which the sealant is pressed against the upper edge of the container with high pressure. The shoulder according to claim 1 enables a targeted positioning of the sealing lip on the container edge under a high contact pressure. This sealing process, which leads to a very good seal, is made possible without unnecessarily complicating the sealing cap.

The subclaims are directed to advantageous developments of the invention.

Claim 2 describes a sealant according to a further embodiment, which engages in the opening of the container. This second sealing means also has a shoulder which rests on the inside of the container, as a result of which a second sealing zone is created. The combination of these two sealants achieves a particularly high-quality seal; furthermore, the sealing of the container is not significantly jeopardized if a sealant is defective. Claim 3 relates to an exemplary embodiment which has dimensions which are determined for the width of the sealing lip and which have proven to be particularly advantageous in extensive comparative tests.

Claim 4 relates to an exemplary embodiment which claims a position of the sealing means which is particularly effective for the sealing.

Claim 5 relates to an embodiment which claims a shape of the cap body which is particularly effective for the sealing.

Claims 6 and 7 distinguish two exemplary embodiments, according to which either the sealing means is produced from a separate part or is formed integrally with the cap body. The embodiment in which the sealant and the cap body consist of one material (integral design) has the advantage of simple and inexpensive manufacture. In the embodiment in which the sealant and the closure cap are made from separate parts, it becomes possible to manufacture the closure cap from a material that is inexpensive and / or reusable, and the sealant from a material that has special sealing properties.

The claims 8 and 9 distinguish exemplary embodiments, according to which the sealing lip and / or the cap body is made of a certain material that has special properties.

Claims 10 and 11 characterize exemplary embodiments which have different locking mechanisms. A screw mechanism is used most frequently these days, but a Closing mechanism is preferred in certain cases, such as recently again with beer bottles.

Claims 12 and 13 relate to exemplary embodiments which claim different properties of the sealing lip which are particularly effective for sealing.

Claim 14 relates to an embodiment which claims a particularly effective condition of the cap body for the sealing.

Claims 15 and 16 relate to embodiments which relate to a shape of the sealing lamella which is particularly advantageous with regard to the sealing effect.

The claim 17 relates to a closure cap, according to which the surface of the sealant cooperating with the container to be closed has a scale-like or structured surface. Such a structure has the advantage that, in conjunction with unevenness on the top of the container to be closed, it leads to a firm seat of the sealant on the top edge of the container.

An embodiment of the present invention is explained in more detail below with reference to the drawing. It shows:

Figure 1 is a sectional view through a cap in the unlocked state, according to a preferred embodiment. 2 is a sectional view through a container to be closed,

Figure 3 is a sectional view through the cap in the closed state.

4 shows a sectional view through a closure cap in the unlocked state, according to a further preferred embodiment;

1 shows a closure cap for releasably closing a bottle according to a currently preferred embodiment of the present invention. The embodiment described in detail below relates to a screw cap for closing a bottle which can contain carbonated liquids. As already mentioned above, however, it is pointed out that the present invention is not limited to screw caps for bottles. Alternative embodiments relate, for example, to cans which are suitable for the storage / freezing of foods, to preserving jars, but also to caps for containers which are not used in the food sector, such as paint buckets.

In Figure 1, a closure cap is shown in its output form in a sectional view. The closure cap consists of a cap body 10, which comprises an upper cover part 18 and an essentially cylindrical side part 19. The side part 19 extends essentially vertically from the plane of the ceiling part 18. According to the embodiment shown in FIG. 1, the transition from the ceiling part 18 to the cylindrical side part 19 does not occur abruptly (sharp-edged), but by means of a rounded transition part 20 It is pointed out that in the embodiment shown the ceiling part 18, the side part 19 and the transition part 20 are not separate elements, but rather that together they form the cap body 10.

On the side part 19, a screw thread 12 is formed, which serves as a closure mechanism, by means of which the closure cap 10 is fastened on the container 100 to be closed. The screw thread 12 cooperates with a corresponding, paired screw thread 112 (see FIG. 2) on the bottle 100. It is expressly pointed out that the screw thread 12 is not the only possible locking mechanism for the container to be fired. All other possible types of locking mechanisms known per se are also suitable, such as bow locks, engaging noses or shoulders, etc.

As can be seen from FIG. 1, according to the preferred embodiment of the present invention, a sealing means 11 in the form of a radially circumferential sealing lip 13 is provided on the inside of the side part 20. The sealing crown 13 has a long wedge shape. In the idle state (ie in the state in which the closure cap does not close a container), the sealing lip 13 extends almost horizontally from the transition part 20, but preferably with a slight inclination towards the center of the closure cap. In a particularly preferred embodiment, the inclination is 41 ° to 48 ° to the horizontal in order to facilitate the removal from the mold (cf. FIG. 4). The width B of the sealing bead 13 is preferably selected so that the inner end of the sealing bead 13 is essentially flush with the upper bottle edge 104 in the closed state (see FIG. 3). In a particularly preferred embodiment (see FIG. 4), the width B is preferably in Area between 3.8 and 4.5 cm. It is thereby achieved that the entire upper edge 104 of the bottle 100 is substantially completely acted upon by the sealing bead 13 which circulates in the cap body 10 when the cap body 10 is screwed onto the bottle 12. The wedge-shaped, long, thin sealing head 13 adapts its profile to different bottle necks when normal torques are exerted on the closure cap during the closing process. In particular, there is a profile adjustment on the upper edge 104 of the bottle neck both at the top outside and at the top inside. The profile of the sealing lip 13 can adapt to any radius of curvature. The bottle neck of a reusable bottle is 20.7 mm smaller than that of the disposable bottle, the inside diameter of which is 21.6 mm. In both cases, the sealing crown 13 also lies inside the bottle neck. As a result, the four-cap according to the invention sits tightly on the bottle under all conceivable environmental conditions.

The above-described inclination of the sealing bead 13 in its rest position is adapted to the inclination of the surface 104 of the bottle 100 from the horizontal plane. as can be seen in detail in FIG. 2. As is clear from this figure, the upper edge 104 of the bottle 100 has an inclination (enlarged here for illustration purposes) from the horizontal plane H. which is indicated with S. It is pointed out that, depending on the container to be closed, different configurations of the respective surface 104 can be selected. According to the teaching according to the invention, the inclination or shape of the sealing bead 13 is preferably adapted to the selected surface shape of the container to be closed. Of particular importance for achieving the success according to the invention is to provide the sealing crown 13 with a specific thickness profile, which is indicated by the reference symbol D in FIG. 1. Extensive comparative tests, in which the sealing behavior of the sealing cap has been tested with sealing beads of different thicknesses, have shown that the sealing bead 13 is preferably 3/10 mm to 7/10 mm thick at its root and no longer thick at the tip have as 5/10 mm and not less than 2/10 mm, and according to a particularly preferred embodiment between 2/10 mm and 4/10 mm. These values have proven to be particularly advantageous for GDB glass bottles to be fired using the customary plastic materials for the cap body 10. For other caps, which have to fill larger or smaller containers, the result is correspondingly skewed values.

In addition, the sealing crown 13 has a special scale-like structure which interacts with the unevenness on the upper edge 104 of the bottle 100 so as to bring about a better sealing of the bottle.

In the starting forms of the present invention discussed so far, the cap body 10 consisted of a single element with which the sealing crown 13 is integrally molded. According to a further preferred embodiment of the present invention, it is also possible to bulge the sealing crown 13 on a separate, ring-shaped element and to insert it into the cap body 10 as required. This preferably flexible ring can be fixed either by jamming or gluing. Preferably, the ring to be used separately according to this embodiment comprises not only the sealing crown, but also the bottom Inner surface 18 'of the closure cap and / or the elastic lamella 16 to be described in more detail. Such an embodiment has the advantage that the sealing means 11, 13, 16 according to the invention can also be introduced as a "retrofit kit" into existing screw closures.

In a preferred embodiment, the sealing means 11 is arranged in such a way that a chamber 33 is formed between the cover part 18 and the side panel 19 of the closure body and the thin, wedge-shaped sealing crown, that is to say from the top outside as seen from the sealing crown. This chamber 33 provides a scope for adaptation to different bottle neck diameters and thus supports a secure sealing of the respective container.

4 shows a further particularly preferred embodiment of the closure cap, in which the sealing means 11 according to the teaching according to the invention has an undulating structure on the inner surface 18 ', with individual concentrically arranged, annular shoulders 34a-f running around the ceiling part 18. Furthermore, the inner surface 18 'of the closure cap has a slope of 0.5 ° to 3 ° with respect to the horizontal and is corrugated in a wave-like manner, as can be seen in FIG. 4. These shoulders 34 are arranged such that the sealing lip 13 rests on them in the closed state and is pressed by them against the upper edge 104 of the bottle 100. The distance between the shoulders 34a-f is preferably chosen so that they all rest on the top edge 104 of the bottle 100; in other words, the radius R _{s of} the concentrically rotating shoulders is preferably chosen so that the outermost shoulder 34a (Fig. 4) or 14 (Fig. 1) is adjacent to the outer edge of the bottle 100, whereas the innermost shoulder 34f (Fig. 4) or 15 (Fig. 1) adjacent to the Inside edge of bottle 100 is located. According to a particularly preferred embodiment, the radius R _{s of} the concentrically rotating shoulders 34a-f extends in the range from 16.5 mm to 18.5 mm, the radius R _{s of} the concentrically rotating shoulder 15 at 17.5 mm.

As can be seen in particular from FIG. 1, the shoulders 14 and 15 have different heights H _χ , H-. The height difference H ₂ - _λ is chosen according to the invention such that, taking into account the vessel S of the bottle surface 104 (cf. FIG. 2), a uniform pressure is applied to the upper edge 104 of the bottle 100 in the closed state. As can be seen in particular from FIG. 4, the heights of the shoulders 34 in this embodiment are selected according to the invention in such a way that the sealing means 11, as it were, clings to the upper edge 104 of the bottle 100 and seals it securely. The shoulders 34a-f in this embodiment, as well as the two shoulders 14 and 15 of the embodiment shown in FIG. 1, exert a uniform pressure on the sealing crown 11, which is the result of the small effective surface the shoulders are comparatively high. In conjunction with the scale structure provided on the lower side of the sealing step and the unevenness on the upper edge 104 of the bottle 100, a secure and reliable seal is thus achieved.

According to a further preferred embodiment of the present invention, in addition to the sealing crown 11, an elastic lamella 16 extending perpendicularly from the ceiling part 18 is also provided, which extends vertically downwards in the idle state (cf. FIG. 1). The sealing lamella 16 also runs concentrically to the center line M of the cap body, the inner edge having a radius R _x and the outer edge having a radius R ₂ . The radii R _χ and R ₂ are chosen in such a way that the sealing lamella 16 extends immediately adjacent to the sealing bead 11 in the idle state; according to a particularly preferred embodiment, the radius R _{j is} 15.4 mm and radius R ₂ 16.8 mm.

According to the teaching of the invention, the sealing lamella 16 is equipped with a shoulder 17, the highest point of which, when the cap body 10 is at rest, is essentially on a cylinder surface together with the free end of the sealing cap 13. The radius of the shoulder 17 is preferably 0.25 mm and is chosen so that the sealing lamella 16 runs from the highest point of the shoulder 17 to the tip of the lameUe 16 at an angle a. Extensive comparative tests have shown that the angle a should preferably have no more than 35 ° and no less than 25 °, and according to a particularly preferred embodiment have 28 °. These values have proven to be particularly advantageous for glass bottles to be fired using the usual plastic materials for the cap body 10. Correspondingly scaled values result for other caps, which have to close larger or smaller containers.

As can be seen in detail in FIG. 3, the shoulder 17 of the sealing lamp 16 interacts with the inside of the bottle 100 in the closed state, the sealing lamp 16 being deflected from its rest position and being bent towards the inside of the bottle by actuating the closing mechanism 12. Just as with the shoulders 14 and 34a-f, the small effective surface of the sealing lamella 16 (which is essentially predetermined by the tip area of the shoulder 17) results in a comparatively high sealing pressure reached, which is defined by the restoring moment of the deflected sealing lamella 16.

The closure flap according to the invention can be made from different materials. If the sealant 11 (together with the shoulders 14 or 34a-f and the elastic laminate 16) is provided as an integral component of the closure cap, polyethylene is particularly suitable as the cap material. If the sealant 11 is provided as an element to be manufactured separately, tinplate can be used for the cap body 10, and polyethylene can be used for the sealant 11 fastened on a sealing ring or for the cap body 10.

At the end of the description, important aspects of the present invention are summarized in the form of the following clause A:

AI. Closure cap for releasably closing a container, with a) a cap body (10) which is paired with the container (100) to be sealed; b) a closure mechanism (12) which the container

(100) releasably closes with the cap body (10); c) a sealing means (11) which interacts with an upper edge (104) of the container (100) in order to seal it when the closure mechanism (12) is closed, characterized in that d) at least one shoulder (18) flattened on the cap body (10) 14 or 15) is provided which opposes the upper edge (104) of the container (100) and with which the sealing means (11) cooperates when the closure mechanism (12) is actuated. A2. Closure cap according to clause 1, characterized in that an elastic lamella (16) extending from the inside of the cap body (10) essentially vertically into the opening of the container (100) is provided, which has a laminated shoulder (17). which bears against the inside of the container (100) when the closure mechanism (12) is actuated.

A3. Closure cap according to clause 1 or 2, characterized in that the sealing means (11) consists of a sealing bead (13) attached to the cap body (10), which runs adjacent to the upper edge of the container (100) and which has a width ( B) which corresponds essentially to the thickness (D) of the upper edge (104) of the container (100).

A4. Closure cap according to one of the preceding clauses, characterized in that two shoulders (14, 15) are provided which have an increasing height (H _j , H ₂ ) towards the inside of the cap body (10), the height difference between the two Shoulders is adapted to the shape of the upper edge (104) of the container (100).

A5. Closure cap according to one of the preceding clauses, characterized in that the cap body (10) consists of a

There is a cover part (18) and a side panel (19) extending perpendicular to the cover part (18) and the sealing means is fastened on the inside to a transition part (20) which connects the cover part (18) to the side part (19). A6. Closure cap according to one of clauses 1 to 5, characterized in that the sealing means (11) is formed from a part to be inserted separately into the cap body (10).

A7. Closure cap according to one of clauses 1 to 5, the sealing means (11) being integral with the cap body (10).

A8. Closure cap according to one of the Klauseüi 1 to 7, characterized in that polyethylene is used as the material for the Kap¬ pen body (10).

A9. Closure cap according to one of the Klauseüi 1 to 7, characterized in that tinplate is used as material for the Kap¬ pen body (10).

A10. Closure cap according to one of the preceding clauses, characterized in that the closure mechanism (12) is a screw mechanism.

Alles. Closure cap according to one of clauses 1 to 9, characterized in that the closure mechanism (12) is a clip closure mechanism.

A12. Closure cap according to one of the preceding clauses, characterized in that the thickness of the sealing means (11) on the stand on which it interacts with an upper edge (104) of the container (100) is in the range between 2/10 mm and 5 / 10 mm. A13. Closure cap according to one of the previous Klauseüi, characterized in that the thickness (D) of the sealant

(11) at the point where it interacts with an upper edge (104) of the container (100) lies in the range between 2/10 mm and 3/10 mm.

A14. Closure cap according to one of the previous Klauseüi, characterized in that the inner edge of the sealing lamella (16) forms an angle α with the outer edge, which establishes a connection between the tip of the sealing lamella (16) and the shoulder (17), in the area between 25 ° and 35 °.

A15. Cap according to one of the previous clauses, characterized in that the inner edge of the sealing lamella

(16) forms an angle a with the outer edge, which creates a connection between the tip of the sealing lamella (16) and the shoulder (17), which is 28 °.

A16. Closure cap according to one of the previous Klauseüi, characterized in that the sealing means (11) on its surface (15) interacting with the upper edge (104) of the container (100) is provided with a scale-like structure.

The aspects can also be characterized using the following Klauseüi B:

Bl. Cap for releasable shooting of a container, with a) a cap body (10) which is in pairs to the container (100) to be fired; b) a closing mechanism (12) which removably closes the container (100) with the cap body (10); c) comprising at least two shoulders (14, 15)

Sealing means (11) which cooperates with an upper edge (104) of the container (100) in order to seal it when the closure mechanism (12) is fired, and a shoulder (15) lying further inside has a greater height (H2) as a further outer shoulder (14, Hl), characterized in that d) the sealing means (11) further comprises an inclined sealing lip (13) which has a width (B) which is essentially the thickness of the upper edge (104) of the container (100) corresponds to a thickness (D) in the range between 2/10 mm and 5/10 mm at the control point at which it cooperates with the upper edge (104) of the container (100), and has a scale-like structure on the surface which interacts with the upper edge (104) of the container (100).

B2. Closure cap according to clause 1, characterized in that an elastic lamella (16), which extends from the inside of the cap body (10) and essentially perpendicularly into the opening of the container (100) and which has a lamella shoulder (17), is also provided. has which on the inside of the container (100) when the closing mechanism (12) is actuated.

B3. Closure cap according to one of the Klauseüi 1 or 2, characterized in that the cap body (10) from one

There is a ceiling part (18) and a side panel (19) extending perpendicularly to the ceiling panel (18) and the sealing crown (13) is fastened on the inside to a transition panel (20) which connects the ceiling panel (18) to the side panel (19).

B4. Closure cap according to one of clauses 1 to 3, characterized in that the sealing means (11) is formed from a part to be inserted separately into the cap body (10).

B5. Closure cap according to one of clauses 1 to 3, the sealing means (11) being integral with the cap body (10).

B6. Closure cap according to one of clauses 1 to 5, characterized in that polyethylene is used as the material for the cap body (10).

B7. Closure cap according to one of clauses 1 to 5, characterized in that tinplate is used as material for the cap body (10). B8. Closure cap according to one of clauses 1 to 7, characterized in that the closure mechanism (12) is a screw mechanism.

B9. Closure cap according to one of the Klauseüi 1 to 7, characterized in that the closure mechanism (12) is a clip closure mechanism.

ORGANIC. Closure cap according to one of clauses 1 to 9, characterized in that the thickness (D) of the sealing crown (13) on the stand on which it is connected to an upper edge (104) of the

Container (100) interacts, is in the range between 2/10 mm and 3/10 mm.

Bll. Closure cap according to one of the Klauseüi 2 to 10, characterized in that the inner edge of the sealing lamella (16) forms an angle a with the outer edge which creates a connection between the tip of the sealing lamella (16) and the shoulder (17) Range between 25 ° and 35 °.

B12. Closure cap according to one of clauses 2 to 11, characterized in that the inner edge of the sealing lamella

(16) forms an angle α with the outer edge, which creates a connection between the tip of the sealing lamella (16) and the shoulder (17), which is 28 °.

The essential aspects of the present invention can also be characterized by the following clauses C: Cl. Closure cap for releasably closing a container, with a) a cap body (10) which is formed in pairs with the container (100) to be closed; b) a locking mechanism (12), the container

(100) releasably closes with the cap body (10); c) a sealing means (11) which cooperates with an upper edge (104) of the container (100) in order to seal it when the closure mechanism (12) is closed, characterized in that d) the sealing means (11) has an inclined, wedge-shaped sealing crown ( 13), which has a width (B) which is substantially greater than the thickness of the upper edge (104) of the container (100), and wherein the inner surface of the sealant 11 on the control unit at which it is connected to the sealing bead 13 cooperates, has a wavy, ribbed structure.

C2. Closure cap according to clause 1, characterized in that an elastic lamella (16) extending from the inside of the cap body (10) essentially vertically into the opening of the container (100) is provided, which has a lamella shoulder (17). which bears against the inside of the container (100) when the closure mechanism (12) is actuated.

C3. Closure cap according to clause 1 or 2, characterized gekenn¬ characterized in that the sealing crown (13) has a width (B) which corresponds essentially to the thickness (D) of the upper edge (104) of the container (100). C4. Closure cap according to one of the Klauseüi 1 to 3, characterized in that the cap body (10) consists of a cover part (18) and a side part (19) extending perpendicular to the cover part (18) and the sealing means (11) on the inside at a transition piece (20) is attached, which connects the ceiling panel (18) with the side panel (19).

C5. Cap according to one of clauses 1 to 4, characterized in that the ceiling panel (18) has a slope of

0.5 ° to 3 °.

C6. Closure cap according to one of clauses 1 to 5, characterized in that the sealing means (11) is formed from a part to be inserted separately into the cap body (10).

C7. Closure cap according to one of clauses 1 to 5, the sealing means (11) being integral with the cap body (10).

C8. Closure cap according to one of the Klauseüi 1 to 7, characterized in that polyethylene is used as the material for the Kap¬ pen body (10).

C9. Closure cap according to one of Klauseüi 1 to 7, characterized in that tinplate is used as material for the cap body (10). CIO. Closure cap according to one of clauses 1 to 9, characterized in that the closure mechanism (12) is a screw mechanism.

Cll. Closure cap according to the clause 1 to 9, characterized in that the closure mechanism (12) is a bow closure mechanism.

C12. Closure cap according to one of clauses 1 to 11, characterized in that the thickness (D) of the sealing overlap (13) extends at the tip in the range between 2/10 mm and 4/10 mm and at its root in the range between 3/10 mm and 7/10 mm.

C13. Cap according to one of clauses 1 to 12, characterized in that the sealing lip 13 is inclined by 41 ° to 48 ° to the horizontal.

C14. Closure cap according to one of clauses 1 to 13, characterized in that a chamber 33 is arranged between the cover part 18 and the side part 19 of the closure body and the thin, wedge-shaped sealing crown in order to provide a margin of adaptation.

C15. Closure cap according to one of the Klauseüi 1 to 14, characterized in that the inner edge of the sealing lamella (16) forms an angle a with the outer edge which establishes a connection between the tip of the sealing lamella (16) and the shoulder (17) Range between 25 ° and 35 °. C16. Closure cap according to one of clauses 1 to 15, characterized in that the inner edge of the sealing lamella

(16) with the outer edge, which creates a connection between the tip of the sealing lamella (16) and the shoulder (17), forms an angle α which is 28 °.

C17. Closure cap according to one of the previous clauses, characterized in that the sealing means (11) is provided with a scale-like structure on its surface (15) which interacts with the upper edge (104) of the container (100).

Claims

claims

1. Cap for releasably closing a container with

a) a cap body (10) which is lined in pairs to form the container (100) to be closed;

b) a closure mechanism (12) which removably closes the container (100) with the cap body (10);

c) a sealing means (11), which cooperates with an upper edge (104) of the container (100) in order to seal it when the closure mechanism (12) is closed, that is, because of the fact that the closure mechanism (12) is closed

d) the sealing means (11) comprises an inclined, wedge-shaped sealing lip (13) which has a width (B) which is substantially greater than the thickness of the upper edge (104) of the

Container (100), and wherein the inner surface of the sealing means 11 has a corrugated, ribbed structure at the point where it interacts with the sealing crown 13.

2. A closure cap according to claim 1, characterized in that an elastic lamella (16) extending from the inside of the cap body (10) substantially perpendicularly into the opening of the container (100) and having a lamella shoulder (17) is further provided. which on the inside of the container (100) abuts when the closure mechanism (12) is actuated.

3. A closure cap according to claim 1 or 2, characterized in that the sealing crown (13) has a width (B) which essentially corresponds to the thickness (D) of the upper edge (104) of the container (100).

4. Cap according to one of claims 1 to 3, characterized in that the cap body (10) consists of a deck part (18) and a side panel (19) extending perpendicularly to the ceiling panel (18) and the sealing means (11) is attached on the inside of a transition door (20) which connects the ceiling door (18) to the side door (19).

5. Cap according to one of claims 1 to 4, characterized in that the ceiling panel (18) has a slope of 0.5 ° to 3 °.

6. Cap according to one of claims 1 to 5, characterized in that the sealing means (11) is formed from a part to be inserted separately into the cap body (10).

7. Cap according to one of claims 1 to 5, wherein the sealing means (11) integrally with the cap body (10) out

Obüdet is.

8. Cap according to emem of claims 1 to 7, characterized in that polyethylene is used as the material for the cap body (10).

9. Cap according to emem of claims 1 to 7, characterized in that tinplate is used as material for the Kappenkör¬ per (10).

10. Closure cap according to one of claims 1 to 9, characterized in that the closure mechanism (12) is a screw mechanism.

11. Cap according to one of claims 1 to 9, characterized in that the closure mechanism (12) is a bracket lock mechanism.

12. Cap according to emem of claims 1 to 11, characterized in that the thickness (D) of the sealing crown (13) at the tip in the range between 2/10 mm and 4/10 mm and at its root in the range between 3 / 10 mm and 7/10 mm.

13. Cap according to one of claims 1 to 12, characterized in that the sealing crown 13 is inclined by 41 ° to 48 ° against the horizontal.

14. A closure cap according to one of claims 1 to 13, characterized in that a chamber 33 is arranged between the ceiling panel 18 and the side panel 19 of the closure body and the thin, wedge-shaped sealing collar in order to provide an adjustment margin.

15. Cap according to one of claims 1 to 14, characterized in that the inner edge of the sealing lamella (16) with the outer edge, which creates a connection between the tip of the sealing lamella (16) and the shoulder (17), forms an angle a which is in the range between 25 ° and 35 °.

16. Closure cap according to one of claims 1 to 15, characterized in that the inner edge of the sealing lamella (16) forms an angle α with the outer edge which establishes a connection between the tip of the sealing lamella (16) and the shoulder (17). which is 28 °.

17. Cap according to one of the preceding claims, characterized in that the sealing means (11) is provided on a surface with the upper edge (104) of the container (100) interacting with a scale-like structure.