CN1042118C - sealing cap - Google Patents

Abstract

A closure for the detachable closure of containers, comprising a closure body (10), the closure body (10) being designed in pairs with the container to be closed; a closure mechanism (12) for releasably locking the container (100) to the lid body; and a sealing means (11) which co-operates with the upper edge (104) of the container (100) to seal the container (100) when the closure mechanism is closed. The sealing cap has at least one projection formed on the cap body, which is located opposite the upper edge of the container and interacts with the sealing device during operation of the closure mechanism.

Description

sealing cap

The present invention relates to a sealing cap for a closed container. The invention relates in particular to screw closures for reusable (MW) and single-use (EW) bottles made of the material PET and for GDB bottles containing beverages containing carbon dioxide.

The following discussion of the content of the application and the prior art is limited to the sealing cap used to close the GDB beverage bottle, so that the content of the discussion can be seen at a glance. However, it should be pointed out with particular emphasis that the invention is by no means limited to sealing caps for GDB (German Spa Industry Association) beverage bottles, but is suitable for any type of container, for example also for food containers (so-called Tupper products). Furthermore, the sealing cap according to the invention can preferably be used for both reusable bottles (MW) and single-use bottles (EW) made of the material PET.

The use of sealing caps with which beverage bottles or similar containers can be closed is very wide. As such, they must meet often differing requirements. First of all, the beverage bottle or container must be sealed so that the beverage contained in the container will not leak from the container in a closed or locked state. If the sealed container is a bottle containing a liquid, this requirement depends on the viscosity of the liquid. Furthermore, if the beverage contained in the bottle is filled with pressurized gas, such as carbon dioxide, then the seal must additionally be able to seal the gas in order to prevent the gas from escaping through the mouth of the bottle.

In order to obtain the above-mentioned sealing effect, according to the prior art, a device for sealing the container is provided in the sealing cover. One known method of sealing is the use of elastomeric sealing rings, such as are found in glass jars used for canning. In this case, the sealing cap and the sealing ring are manufactured separately and combined after manufacture. It is easy to see that this method of making two parts is expensive and cumbersome. Another disadvantage of this method is also known from daily use: the rubber ring is relatively easy to slip and thus affects the reliable sealing of the container.

For this reason, it has been proposed to design the sealing ring as an integral part of the sealing cover, which has many advantages.

An example of this type is known from EP-A-0580369, which relates to a one-piece bottle cap of this type. The sealing cover has a sealing lip extending inwardly from the cover body, which is an integral part of the sealing cover. When the sealing cap is screwed on the container, the sealing lip is pressed against the inner surface of the sealing cap by the upper end of the bottle neck. The counter pressure on the inner surface of the sealing cap via the sealing lip results in a gas-tight sealing of the container. In order to prevent the sealing lip from sticking to the inner surface of the sealing cover, a plurality of radially inwardly extending grooves are provided which are intended to prevent this sticking. In EP-A-0580369, deviations from the tolerance limits of the sealing lip and bottle neck dimensions are also taken into account.

U.S. Patent No. 4,450,973 discloses a container sealing cap, which is provided with a closing mechanism except for the top cover and the side edge substantially perpendicular to the top cover and the transition area between the two which are included in the universal sealing cap. 1. Sealing device and sealing lip. When the container cap is screwed on the container, the sealing lip is squeezed between the upper end of the container and the inner surface of the sealing cap to play a role of tight sealing. In addition, the inner wall of the top cover is also provided with several annular bosses, which fit closely with the sealing lip.

The disadvantage of these known methods lies in the actual sealing effect of the container: under ideal conditions, the container is hermetically sealed without any problem, but once the upper side of the container has slight unevenness and has a surface that is not completely uniform, especially when repeated This is likely to occur in the used bottle due to frequent use, so that a satisfactory seal is no longer possible. Furthermore, it should be noted that due to the radial grooves formed in the inner surface of the sealing cap, it is not possible to obtain a uniform sealing. At the position where the inner surface grooves of the sealing cap are located, the required tightness is not achieved, because the pressure caused by the joint action of the inner surface of the sealing cap and the upper edge of the container in these places is relatively small, which is due to the ( Desired here) deformation. Where there are no grooves on the inner surface of the cap the pressure is greater, resulting in an uneven seal. Consequently, the radial alignment of the grooves and thus the weaker sealing points ultimately further weakens the effectiveness of the container seal, since the grooves to some extent lead to a bridging of the seal.

It is therefore the object of the invention to improve the sealing of containers by using a sealing cap which is neither unnecessarily complicated nor expensive to manufacture.

The object of the invention is achieved by a sealing cap as defined in claim 1 .

The specific embodiment is: the sealing cover of the present invention includes a cover body, a closing mechanism, a sealing device and an elastic sheet, the sealing device is provided with a wedge-shaped sealing lip, and a boss is placed on the elastic sheet, and when the closing mechanism is operated, the boss leans against the inner wall of the container. Thus constitutes the second sealing area. Combining the two seals makes it possible to obtain a particularly good seal; moreover, the seal of the container is not seriously compromised when one seal is defective.

Claim 2 relates to an embodiment in which a width dimension of the sealing lip is specified, which dimension has proved to be particularly advantageous in numerous comparative tests.

Claim 3 relates to an embodiment which requires the sealing device to have a position which is particularly effective for sealing.

Claim 4 relates to an embodiment which requires the cover body to have a shape which is particularly effective for sealing.

Claims 5 and 6 distinguish two embodiments according to which the sealing device is either produced as a separate part or designed in one piece with the cover body. The embodiment in which the sealing device and the cover body are made of the same material (integral design) has the advantage of being simple and inexpensive to manufacture. In embodiments where the sealing means and the cover body are formed as separate parts, it is possible to manufacture the cover body from a relatively inexpensive and/or reusable material, while the sealing means is made from a material having special sealing properties.

Claims 7 and 8 describe different exemplary embodiments in which the sealing lip and/or the cover body are produced from a material with defined special properties.

Claims 9 and 10 characterize embodiments with different closure mechanisms. A screw mechanism is the most widely used at present, but a clamp-type closure mechanism is preferred in some definite occasions, such as recently re-used on beer bottles.

Claims 11 and 12 relate to embodiments which require different configurations of the sealing lip which are particularly effective for sealing.

Claim 13 relates to an embodiment which requires the cover to have a particularly effective structure for the seal.

Claims 14 and 15 relate to embodiments which relate to particularly advantageous shapes of the sealing lamella with regard to the sealing effect.

Claim 16 relates to a closure cap in which the surface of the sealing means cooperating with the container to be closed has a scale-like or structured surface. The advantage of this construction is that it results in a tight fit of the sealing means on the upper edge of the container when cooperating with unevennesses present in the upper end of the container to be closed.

Embodiments of the present invention are described in detail below according to the accompanying drawings, in the accompanying drawings:

Fig. 1 is a sectional view of the sealing cap of the best embodiment in an unclosed state;

Figure 2 is a sectional view of a container to be closed;

Fig. 3 is a sectional view of a sealing cover in a closed state;

FIG. 4 is a sectional view of a sealing cap according to another preferred embodiment in the unclosed state.

Fig. 1 shows a sealing cap for detachably closing a bottle according to the presently preferred embodiment of the present invention. The embodiment described in more detail below relates to a screw seal for closing bottles in which a liquid containing carbon dioxide can be filled. However, as previously mentioned, it should be noted that the present invention is not limited to screw seals for bottles. An alternative embodiment relates, for example, to jars suitable for preserving/refrigerating food, glass jars for canning, but also lids for containers not used in the food sector, such as paint buckets. Figure 1 shows a cross-sectional view of a sealing cap in its original state. The closure has a body 10 comprising a top portion 18 and a substantially cylindrical side portion 19 . The side portions 19 extend substantially perpendicularly from the plane of the top cover 18 . In the embodiment shown in FIG. 1 , the transition from the cover part 18 to the cylindrical side part 19 is not abrupt (angular) but via a rounded transition part 20 . It should be noted that in the embodiment shown in the figures, the top cover portion 18 , the side portion 19 and the transition portion 20 are not separate components, but rather they together form the cover body 10 .

A thread 12 is formed on the side part 19 and serves as a closure means by means of which the sealing cap 10 is fastened to the container 100 to be closed. The thread 12 cooperates with a correspondingly designed pair of threads 112 (see FIG. 2 ) on the bottle 100 . It should be particularly emphasized that the thread 12 is not meant to be the only possible closure mechanism for the container to be closed. All possible other types of known closure means are equally suitable, for example clip-type closures, flanges or projections inserted into grooves or the like.

As can be seen from FIG. 1 , according to a preferred embodiment of the invention, a sealing device 11 in the form of a radial annular sealing lip 13 is provided on the inside of the side part 20 .

The sealing lip 13 has the shape of an elongated wedge. In the rest state (ie in the state in which the cap does not close the container), the sealing lip 13 extends from the transition portion 20 almost horizontally, but is preferably slightly inclined towards the midpoint of the sealing cap. In a particularly advantageous embodiment, the inclination relative to the horizontal is 41° to 48° for easy demoulding (see FIG. 4 ). The width B of the sealing lip 13 is preferably selected such that the inner end of the sealing lip 13 is substantially flush with the upper edge 104 of the bottle in the closed state (see FIG. 3 ). In a particularly advantageous embodiment (see FIG. 4 ), the width B is preferably between 3.8 and 4.5 mm. It is thus achieved that when the cap body 10 is screwed onto the bottle 100 , the entire upper edge 104 of the bottle 100 is substantially compressed across the entire surface by means of the sealing lip 13 which runs round in the cap body 10 . This wedge-shaped, long, thin sealing lip 13 is shaped to suit different bottle necks when a normal torque is applied to the sealing cap during the closing process. In particular, a form fit on the bottle neck upper edge 104 can be achieved both on the outside of the upper part and on the inside of the upper part. The shape of the sealing lip 13 is adapted to any radius of curvature. The inner diameter of the neck of the reusable bottle is 20.7 mm, which is smaller than that of the single-use bottle, which has an inner diameter of 21.6 mm. In both cases, the sealing lip 13 also protrudes inwards into the bottle neck. The end result is that the closure according to the present invention snaps hermetically onto the bottle under every imaginable environmental condition.

The aforementioned inclination of the sealing lip 13 in its rest position is matched to the inclination of the upper surface 104 of the bottle 100 from the horizontal, as can be seen in particular from FIG. 2 . As can be clearly seen from this figure, the upper edge 104 of the bottle 100 has an inclination from the horizontal plane H (shown exaggeratedly in the figure for better clarity), and this inclination is represented by S. It should be noted that depending on the container to be closed, different shapes of the upper edge 104 can be selected.

According to the provisions of the present invention, the slope or shape of the sealing lip 13 is optimally adapted to the selected top surface shape of the container to be sealed.

Furthermore, it is particularly useful for the purposes of the invention to provide the sealing lip 13 with a certain thickness dimension, which is indicated by the symbol D in FIG. 1 . A large number of comparative tests have been done to test the sealing performance of sealing covers with different thicknesses of sealing lips. The results show that the thickness of sealing lip 13 is preferably 3/10 mm to 7/10 mm at its root; the thickness at its top should not be greater than 5/10 mm and not less than 2/10 mm, and according to a preferred embodiment between 2/10 mm and 4/10 mm. These values have proven to be particularly favorable for the GDB glass bottle to be closed when a conventional plastic cap body 10 is used. For other closures used to close larger or smaller containers, tests yielded corresponding dimensional values.

Furthermore, the sealing lip 13 has a special scale-like structure which cooperates with unevennesses on the upper edge 104 of the bottle 100 in order to better seal the bottle.

In the original form of the invention discussed so far, the cover body 10 consists of a single component, with which the sealing lip 13 is designed in one piece. According to a further preferred embodiment of the invention, the sealing lip 13 can likewise be designed as a separate annular component and inserted into the cover body 10 as required. This is preferably fixed by the flexible ring, either by clamping or by gluing. According to this embodiment, the separate insertable ring preferably comprises not only the sealing lip, but also the inner surface 18 ′ of the sealing cover and/or the elastic foil 16 , which will be described in more detail below. The advantage of this embodiment is that the sealing device 11 , 13 , 16 according to the invention can also be inserted as a "retrofit device" into existing screw-type sealing caps.

In a preferred embodiment, the sealing device 11 is designed such that, between the top part 18 and the side part 19 of the sealing cover and the thin, wedge-shaped sealing lip, that is to say looking upwards and outwards from the sealing lip, A cavity 33 is formed. The chamber 33 provides an adaptable play space for different neck diameters and thus contributes to a reliable sealing of the associated container.

Another preferred embodiment of the sealing cover is shown in Fig. 4, wherein the sealing device 11 is provided with a corrugated structure on the inner surface 18' according to the provisions of the present invention, wherein the annular bosses 34a- f surrounds the top cover 18 . In addition, the inner surface 18' of the sealing cap has an inclination of 0.5° to 3° with respect to the horizontal plane, and as shown in FIG. 4, has corrugated raised stripes. The projection 34 is designed to bear against the sealing lip 13 when it is in the closed state and is pressed by the sealing lip 13 against the upper edge 104 of the bottle 100 . The distance between the bosses 34a-f is preferably chosen so that they all rest against the upper edge 104 of the bottle 100; in other words, the radius Rs of the concentric annular bosses is preferably chosen such that the outermost boss The platform 34a ( FIG. 4 ) or 14 ( FIG. 1 ) is adjacent the outer edge of the bottle 100 , while the innermost boss 34f ( FIG. 4 ) or 15 ( FIG. 1 ) is adjacent the inner edge of the bottle 100 . According to a preferred embodiment, the radius Rs of the concentric annular bosses 34a-f is in the range of 16.5mm to 18.5mm, and the radius Rs of the concentric annular boss 15 is about 17.5mm.

As can be seen in particular from FIG. 1 , the cams 14 and 15 have different heights H ₁ , H ₂ .

According to the invention, the height difference H ₂ -H ₁ is selected such that, taking into account the slope S of the upper surface 104 of the bottle (see FIG. 2 ), a uniform pressure can be generated on the upper edge 104 of the bottle 100 in the closed state. As shown in FIG. 4, in this embodiment of the invention, the height of the boss 34 is selected such that, in the closed state, the sealing device 11 rests, so to speak, on the upper edge 104 of the bottle 100 and secures it securely. seal. In this embodiment, the bosses 34a-f, like the two bosses 14 and 15 of the embodiment shown in FIG. So the pressure is relatively high.

A defined and reliable seal can thus be achieved when the scales provided on the underside of the sealing lip cooperate with unevennesses on the upper edge 104 of the bottle 100 .

According to a further preferred embodiment of the invention, in addition to the sealing device 11 there is also provided an elastic web 16 extending vertically from the cover part 18, which extends vertically downwards in the rest state (see FIG. 1). The sealing sheet 16 is also concentric to the center line M of the cover body, wherein the inner radius is R ₁ and the outer radius is R ₂ . The radii R ₁ and R ₂ are chosen such that the sealing lamina 16 runs directly adjacent to the sealing lip 13 in the rest state, according to a preferred embodiment, the radius R ₁ is 15.4 mm and the radius R ₂ is 16.8 mm.

According to the provisions of the present invention, the sealing sheet 16 is provided with a boss 17, the highest point of which is substantially on the same cylindrical surface as the free end of the sealing lip 13 when the cover body 10 is in a static state. The radius of the boss is preferably 0.25 mm and is chosen such that the sealing flap 16 extends from the highest point of the boss 17 to the top of the flap 16 along an angle α. A large number of comparative tests have proved that the angle α should preferably not be greater than 35° and not less than 25°, and can be 28° according to a preferred embodiment. This value has proven to be very appropriate for glass bottles closed with a conventional plastic cap 10 . Corresponding dimensional values were obtained for other sealing caps used to close larger or smaller containers.

As can be seen specifically from FIG. 3 , the boss 17 of the sealing plate 16 cooperates with the inside of the bottle 100 in the closed state. At this time, by operating the closing mechanism 12, the sealing plate 16 is deflected from its rest position and Bend towards the inside of the bottle. Exactly as in the case of the bosses 14 or 34a.f, a relatively high sealing pressure is generated due to the small effective surface of the sealing disc 16 (which is mainly formed by the circular top region of the boss 17), which The pressure is determined by the restoring torque of the deflected sealing disc 16 .

The sealing cap according to the invention can be produced from different materials. If the sealing device 11 (with the projections 14 or 34a-f and the spring plate 16) is designed as an integral part of the sealing cover, polyethylene is particularly suitable as a material for the cover. If the sealing device 11 is designed as a separately manufactured component, then the cover body 10 can be made of tinplate, and the sealing device 11 or the cover body 10 fixed on the sealing ring can be made of polyethylene.

At the end of the description, the gist of the present invention is summarized in the form of the following additional clause A: A1, a sealing cap for detachably closing the container, which has

a) the cover body (10), which is designed in pairs with the container (100) to be closed;

b) a closing mechanism (12), which detachably locks the container (100) and the lid (10) together;

c) a sealing device (11) which cooperates with the upper edge (104) of the container (100) to seal the container (100) when the closure mechanism (12) is closed;

d) There is at least one boss (14 or 15) formed on the cap body (10), which is located opposite the upper edge (104) of the bottle (100) and is in contact with the seal when the closure mechanism (12) is operated. The devices (11) work together; it is characterized in that: there is also an elastic sheet (16) extending substantially vertically from the inner side of the cover body (10) to the mouth of the container (100), which has a boss (17), When the closure mechanism (12) is actuated, this cam (17) rests against the inner side of the container (100).

A2. The sealing cap according to the additional clause 1, characterized in that the sealing device (11) consists of a sealing lip (13) fixed on the cap body (10), which is adjacent to the upper edge of the container (100) and have a width (B) substantially consistent with the thickness of the upper edge (104) of the container (100).

A3. According to the sealing cap described in the preceding additional clause 1, it is characterized in that two bosses (14, 15) are provided, and they have heights (H ₁ , H ₂ ) that gradually increase toward the inside of the cap body (10) , at this time, the height difference between the two bosses matches the shape of the upper edge (104) of the container (100).

A4, according to the sealing cover described in the preceding additional clause 1, it is characterized in that the cover body (10) is composed of a top cover part (18) and a side part (19) extending vertically relative to the top cover part (18), sealing The device is secured to the inner transition section (20) which connects the roof section (18) to the side sections (19).

A5. The sealing cap according to additional clause 1, characterized in that the sealing device (11) consists of a separate part which can be inserted into the cap body (10).

A6. The sealing cap according to the additional clause 1, characterized in that the sealing device (11) and the cap body (10) are designed as a whole.

A7. Sealing cap according to additional clause 1, characterized in that polyethylene is used as material for the cap body (10).

A8. The sealing cap according to the additional clause 1, characterized in that tinplate is used as the material of the cap body (10).

A9. According to the sealing cap described in the preceding additional clause 1, it is characterized in that the closing mechanism (12) is a screw mechanism.

A10. The sealing cap according to the additional clause 1, characterized in that the closing mechanism (12) is a clamp mechanism.

A11. According to the customer closure described in 1 of the preceding additional clause, it is characterized in that the sealing device (11) has a thickness between 2/10 mm and the upper edge (104) of the container (100). within a range of 5/10mm.

A12. According to the sealing cap described in the preceding additional clause 1, it is characterized in that the sealing device (11) has a thickness (D) of 2/10 mm where it interacts with the upper edge (104) of the container (100) and within the range between 3/10 mm.

A13. According to the sealing cover described in the preceding additional clause 1, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge makes the gap between the top end of the sealing sheet (16) and the boss (17) Connected, the angle α is in the range between 25° and 35°.

A14. According to the sealing cover described in the preceding additional clause 13, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge connects the top end of the sealing sheet (16) with the boss (17) , the α angle is 28°.

A15. The sealing cap according to the preceding additional clause 1, characterized in that the sealing device (11) is provided with a scale-like structure on its surface (15) cooperating with the upper edge (104) of the container (100).

These aspects can also be characterized by means of the following additional clause B:

B1. Sealing caps for detachably closing containers, which have

a) the cover body (10), which is designed in pairs with the container (100) to be closed;

b) a closing mechanism (12), which detachably locks the container (100) and the lid (10) together;

c) a sealing device (11) comprising at least two bosses (14, 15) which cooperate with the upper edge (104) of the container (100) to seal the container (100) when the closure mechanism (12) is closed, Wherein, the height (H ₂ ) of a boss (15) at a more inner position is higher than that of a boss (14, H ₁ ) at a more outer position;

d) The sealing device (11) also includes an inclined sealing lip (13); it

- have a width (B) which substantially corresponds to the thickness of the upper edge (104) of the container (100),

- where it cooperates with the upper edge (104) of the container (100), has a thickness (D) in the range between 2/10 mm and 5/10 mm, and

- There is a scale-like structure on the surface, and this surface shares the function with the upper edge (104) of the container (100); it is characterized in that there is also a vertically extending from the inner side of the cover body (10) to the mouth of the container (100). The elastic sheet (16) has a boss (17), and when the closing mechanism (12) is operated, the boss (17) abuts against the inner side of the container (100).

B2. According to the sealing cover described in the additional clause 1, it is characterized in that the cover body (10) is composed of a top cover part (18) and a side part (19) extending vertically relative to the top cover part (18), and the sealing lip (13) is secured to the inner transition section (20) which connects the top cover section (18) to the side section (19).

B3. The sealing cap according to additional clause 1, characterized in that the sealing device (11) consists of a separate part which can be inserted into the cap body (10).

B4. The sealing cap according to the additional clause 1, characterized in that the sealing device (11) and the cap body (10) are designed as a whole.

B5. Sealing cap according to additional clause 1, characterized in that polyethylene is used as material for the cap body (10).

B6. According to the sealing cover described in the additional clause 1, it is characterized in that tinplate is used as the material of the cover body (10).

B7. The sealing cap according to additional clause 1, characterized in that the closing mechanism (12) is a screw mechanism.

B8. The sealing cap according to the additional clause 1, characterized in that the closure mechanism (12) is a clamp mechanism.

B9. Sealing cap according to additional clause 1, characterized in that the sealing lip (13) has a thickness (D) between 2/10 mm and within a range of 3/10mm.

B10. According to the sealing cover described in the additional clause 1, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge connects the top end of the sealing sheet (16) to the boss (17) In general, the angle α is in the range between 25° and 35°.

B11. According to the sealing cover described in the additional clause 10, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge connects the top end of the sealing sheet (16) with the boss (17), The alpha angle is 28°.

The gist of the present invention can further show its characteristics by the following additional clause C: C1, the sealing cover that is used to detachably close the container, it has

a) the cover body (10), which is designed in pairs with the container (100) to be closed;

b) a closing mechanism (12), which detachably locks the container (100) and the lid (10) together;

c) a sealing device (11) which cooperates with the upper edge (104) of the container (100) to seal the container (100) when the closure mechanism (12) is closed;

d) The sealing device (11) comprises an inclined wedge-shaped sealing lip (13), which has a width (B) substantially greater than the thickness of the upper edge (104) of the container (100), wherein the sealing device The inner surface of (11) has a corrugated structure with protruding stripes at the place where it cooperates with the sealing lip (13); it is characterized in that: there is also a substantially perpendicular from the inner side of the cover body (10) The elastic piece (16) extending into the mouth of the container has a boss (17) which abuts against the inner side of the container (100) when the closing mechanism (12) is operated.

C2. The sealing cap according to additional clause 1, characterized in that the sealing lip (13) has a width (B) which substantially corresponds to the thickness of the upper edge of the container (100).

C3. According to the sealing cover described in additional clause 1, it is characterized in that the cover body (10) is composed of a top cover part (18) and a side part (19) extending vertically relative to the top cover part (18), and the sealing device (11) is secured to the inner transition section (20) which connects the roof section (18) to the side sections (19).

C4. The sealing cap according to additional clause 1, characterized in that the top cap part (18) has an inclination of 0.5° to 3°.

C5. The sealing cap according to the additional clause 1, characterized in that the sealing device (11) consists of a separate part which can be inserted into the cap body (10).

C6. The sealing cap according to the additional clause 1, characterized in that the sealing device (11) and the cap body (10) are designed as a whole.

C7. Sealing cap according to additional clause 1, characterized in that polyethylene is used as material for the cap body (10).

C8. According to the sealing cover described in the additional clause 1, it is characterized in that tinplate is used as the material of the cover body (10).

C9. The sealing cap according to the additional clause 1, characterized in that the closing mechanism (12) is a screw mechanism.

C10. The sealing cap according to the additional clause 1, characterized in that the closing mechanism (12) is a clamp mechanism.

C11, according to the sealing cover described in additional clause 1, it is characterized in that the thickness (D) of the top of the sealing lip (13) is in the range between 2/10 mm and 4/10 mm, and the thickness (D) at the root of the lip (13) is ) in the range between 3/10 mm and 7/10 mm.

C12. The sealing cover according to the additional clause 1, characterized in that the sealing lip (13) is inclined by 41° to 48° relative to the horizontal plane.

C13, according to the sealing cap described in additional clause 1, it is characterized in that a cavity (33) is provided between the top cover part (18) and the side part (19) of the cover body and the thin wedge-shaped sealing lip, so as to provide An adaptive activity gap.

C14. According to the sealing cover described in the additional clause 1, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge connects the top end of the sealing sheet (16) to the boss (17) In general, this angle α is in the range between 25° and 35°.

C15. According to the sealing cover described in the additional clause 14, it is characterized in that the inner edge and the outer edge of the sealing sheet (16) form an angle α, and the outer edge connects the top end of the sealing sheet (16) to the boss (17) Up, this α angle is 28°.

C16. The sealing cap according to claim 1, characterized in that the sealing device (11) is provided with a scale-like structure on its cooperating surface (15) with the upper edge (104) of the container (100).

Claims (16)

1, a kind of removably seal cover cap of closed container that is used for has

A) lid body (10), it with want osed top container (100) to design in couples;

B) closing means (12), it removably is locked in container (100) with lid body (10);

C) sealing arrangement (11), it and container (100) upper limb (104) combined action seal container (100) when closing means (12) locking;

D) sealing arrangement (11), comprise a bevelled wedge-type seal lip (13), its width (B) is basically greater than the thickness of container (100) upper limb (104), the inside face of sealing arrangement (11) has a kind of corrugated structure that the projection striped is arranged in itself and the coefficient place of sealing lip (13); It is characterized in that:

E) inboard from lid body (10) also is set and substantially perpendicularly extends to container (100) mouthful interior elastic sheet (16), it is with a boss (17), and when operation closing means (12), boss (17) abuts on the inboard of container (100).

2, according to the described seal cover cap of claim 1, it is characterized in that: the width (B) of sealing lip (13), basically with the consistency of thickness of container (100) upper limb (104).

3, according to the described seal cover cap of claim 1, it is characterized in that: lid body (10) is formed by header field (18) with respect to the vertically extending lateral section of header field (18) (19), sealing arrangement (11) is fixed on the inside transition portion (20), and transition portion (20) couples together header field (18) and lateral section (19).

4, according to the described seal cover cap of claim 3, it is characterized in that: header field (18) has 0.5 ° to 3 ° degree of dip.

5, according to the described seal cover cap of claim 1, it is characterized in that: sealing arrangement (11) is made of the independent part that covers in the body (10) of can packing into.

6, according to the described seal cover cap of claim 1, it is characterized in that: sealing arrangement (11) is as a whole with lid body (10) design.

7, according to the described seal cover cap of claim 1, it is characterized in that: polyethylene is as the material that covers body (10).

8, according to the described seal cover cap of claim 1, it is characterized in that: tin-plate is as the material that covers body (10).

9, according to the described seal cover cap of claim 1, it is characterized in that: closing means (12) is a kind of screw mechanism.

10, according to the described seal cover cap of claim 1, it is characterized in that: closing means (12) is an a kind of clip mechanism.

11, according to claim 1 or 2 described seal cover caps, it is characterized in that: in the scope of thickness (D) between 2/10 millimeter and 4/10 millimeter on sealing lip (13) top, in the scope of thickness (D) between 3/10 millimeter and 7/10 millimeter of its root.

12, according to claim 1 or 2 described seal cover caps, it is characterized in that: sealing lip (13) is inclined relative to horizontal 41 ° to 48 °.

13, according to the described seal cover cap of claim 3, it is characterized in that: between the lid header field (18) of body and lateral section (19) and the wedge-type seal lip that approaches, be provided with chamber (33), so that an adaptive activity space is provided.

14, according to the described seal cover cap of claim 1, it is characterized in that: the inner edge of sealing sheet (16) and outside constitute an angle α, and this outside makes between the top of seal strip (16) and the boss (17) and couples together, in the scope of α angle between 25 ° and 35 °.

15, according to the described seal cover cap of claim 14, it is characterized in that: the inner edge of sealing sheet (16) and outside constitute an angle α, and this outside makes between the top of seal strip (16) and the boss (17) and couples together, and this α angle is 28 °.

16, according to the described seal cover cap of claim 1, it is characterized in that: sealing arrangement (11) is provided with a kind of flaky texture at itself and the coefficient surface of container (100) upper limb (104) (15).

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