EA006466B1 - Cup-shaped receptacle and lid - Google Patents

Abstract

A cup-shaped receptacle (c) has an outer bead (10) in its opening area for clipping on a plastic lid (D). The lid has a circumferentially continuous clamping groove (1) for receiving the bead. The clamping groove is continued outwards by an elastically deformable constriction (14), and inwards by an outer wall (6) of a circumferentially continuous, U-shaped lid recess, the U-web (22) of which is situated below the height position of the constriction and the inner leg wall (23) of which forms a part of a dome (2) wall of a dome which extends upwardly beyond the height position of the constriction. The lid recess extends downwards beyond the height position of the constriction and has an outer diameter at its outer surface which is adapted to the inner diameter of the receptacle wall such that the lid recess functions at least as a centering and guide projection for the lid-clip-on action, which projection slidingly co-operates with the receptacle wall already at least while the bead passes the constriction.

Description

This invention relates to a container in the form of a glass and a lid for such a container.

In the plastic lid attached to the container in the form of a glass, presented in document I8 5253781 A, the outer surface of the outer supporting wall of the recess of the lid passes down immediately after the height of the waist. The taper angle and the outer diameter of the outer surface are consistent with the taper angle and the inner diameter of the container wall so that this outer surface does not come into significant contact with the container wall, even when the collar of the container, made in the form of a curled edge, is completely located in the fixing groove. Due to the relatively short external surface and the large radial size of the I-shaped part of the lid recess, the locking groove tilts inward during attachment, which prevents the shoulder from moving smoothly over the waist along the entire circumference. In this case, it is first necessary to carefully center the lid with the fixing groove with the shoulder, and then attach the cover by pressing, acting directly on the upper wall of the fixing groove with a sliding rotating movement of the hand. This attachment operation is inconvenient, time-consuming, and increases the risk of improperly snapping the bead in the locking groove in some places around the circumference of the nozzle opening. In this case, leakage of liquid is possible when tilting the filled glass. The lid spontaneously can easily bounce when the filled container falls, since the region of the glass opening is easily deformed in the radial direction.

Document I8 5975344 describes a large-volume container made of injection molded polyethylene with a cylindrical wall in the region of the upper hole and a durable die-cast cover, the surface of which is located below the elevation of the edge of the lid periphery farthest from the center.

Document No. 10057277 A describes a leak-proof cap on a bottle, the upper surface of which (Fig. 3-6) is made with a conical or cylindrical central recess. The bottom of the recess has a wall thinner than the top surface of the lid and has intersecting, irreversibly opened lines of notches for introducing the straws. This cover is a replacement part designed to replace the commonly supplied crown cover.

The aim of the present invention is to provide a container and a lid suitable for said container, by which it is possible to achieve easy attachment of the lid even by unqualified persons, so that the attached lid prevents leakage and hardly bounces when the filled glass falls. Even in spite of the fact that according to the present invention, it is intended to achieve a high force holding the cover and perfect tightness, the attachment of the cover should be carried out without difficulty.

Since the outer abutment wall of the present invention has a relatively long downwardly extending protruding portion, the I-shaped portion of the lid recess and the inner abutment wall usually constitute a rigid centering and guiding protrusion that, when sliding, makes contact with the container wall at least already while passing the shoulder for the constriction. The exact alignment of the fixing groove on the shoulder automatically occurs, while the fastening of the shoulder is carried out practically with one attempt along the entire length of its circumference behind the constriction in the fixing groove with pressure essentially only on the upper wall of the dome. The sliding contact between the outer surface and the glass wall evenly guides the constriction along the shoulder, because thanks to the guiding and centering action, the shoulder everywhere creates the same resistance to moving the lid down. The guide protrusion converts the pressure applied to the dome into a downwardly oriented pulling force uniformly distributed over the waist and pulling the waist evenly over the shoulder until the shoulder is in the proper position in the locking groove. The beneficial effect of the centering and guiding protrusion, which actually has a conical or cylindrical shape, and uniform transmission of force, allow the interaction to provide a strong tight fit between the shoulder and the fixing groove, resulting from a relatively accurate selection of the sizes of the shoulder and the fixing groove, as well as the specified elasticity. This ensures that leakage is prevented when the lid is attached, as well as the collar exit, even local, from the fixing groove when the filled glass falls. The shape of the dome and the recesses of the lid create a rigid structure integrated in the lid, whereby the lid is effectively attached without any significant deformation due to the applied fixing force. The attached lid noticeably tightens the area of the container opening, which leads to excellent leakage protection, as well as sufficient tightness.

A particularly important aspect of the present invention is the continuous articulated circumferential mechanism, which is integral with the lid. This makes it easy to attach the lid with an almost quick grip. When pressure is applied at least to the upper wall of the dome, the dome lowers, and as soon as resistance to moving the waist over the shoulder begins to increase, the displaced inner support wall tilts the ϋ-shaped part down around the hinge formed at the transition between the I-shaped part and outer supporting wall. The inclined movement of the I-shaped part temporarily tends to pull the outer supporting wall away from the inner wall of the container. Due to the contact between the shoulder and the constriction, the latter tilts outward, while the fixing groove diverges slightly. Due to the fixing pressure, or, if necessary, also automatically, or selectively, due to pressure on the outer periphery of the lid when the dome is pressed in, the collar easily passes with one attempt for pulling. When the pressure stops, the hinge mechanism restores the tight fit of the lid, the I-shaped part returns to a position essentially perpendicular to the axis of the lid, and firmly holds the outer abutment wall opposite the inner wall of the container. The constriction returns behind the shoulder before the shoulder enters the tight and tight tight fit in the fixing groove. The dome protruding upward allows the combined mechanism to be actuated, first of all by lowering the dome relative to the fixing groove, and at the same time to open the locking groove before the shoulder flips into it.

Then the dome restores its original elevated position. During attachment, the upper wall of the dome can be lowered by pressing so that the palm of the hand facilitates the easy completion of attachment around the periphery of the lid.

The collar of the container can be made in the form of a curled collar or a completely twisted edge, or a partially curled collar or a half-chamfered edge, or, instead, in the form of an outwardly curved flange. A simple and convenient attachment of the cover is achieved in any case, which ultimately leads to tightness and strong retention of the cover.

The cover is designed in terms of optimization and simplification of attachment, despite the presence of a powerful tight fit in the attached state. Due to its shape, the lid is relatively rigid in the central part, while the collar can be easily and completely completed in the fixing groove with a tight and tight fit simply by pressing in the fastening direction, with the help of the guide protrusion and by temporarily opening the locking groove by moving the dome relative to the waist .

For this, it may be essential that the I-shaped portion extends substantially in a plane and substantially perpendicular to the axis of the lid, as well as that the inner supporting wall is parallel to the axis of the lid. Due to such design features, the hinge mechanism, which is integral with the cover, optimally works when pressing on the cover, mainly due to the fact that, for mechanical reasons, the internal supporting wall works more rigidly than the external supporting wall when the I-shaped part is tilted, so that as a result, the outer supporting wall is forced to move inward and then temporarily opens the locking groove from the inside.

It is advisable that the external surface is slidingly interacting with the container wall before the collar begins to elastically deform the constriction. As a result, the locking groove and the constriction, respectively, are placed on the shoulder in a neatly centered position, while the shoulder will have to overcome essentially the same resistance when passing along the entire length of its circumference and, therefore, simply and evenly attach to the locking groove.

At approximately equal taper angles of the outer surface and the container wall, the outer diameter of the outer surface at the height of the waist should correspond to at least approximately the inner diameter of the container wall in the region of the hole, with a centering and guiding effect before the shoulder reaches the waist. When the collar clicks into the fixing groove, the softer material of the container will move into the collar and into the container wall, and a strong positive connection will be created with the lid attached. Additionally or selectively, the outer supporting wall of the lid recess may also be slightly introduced inward as a result of contact pressure between the outer surface and the container wall.

The outer diameter of the outer surface in the fixing groove may even significantly exceed the inner diameter of the container wall in the region of the hole, i.e. in the place of bending of the inner wall outward in the form of a shoulder. This measure guarantees a significant guiding effect and centering during the entire movement of the shoulder for the constriction in the fixing groove. Excess diameter is about 3.5%, i.e. a suitable range is about 1.5-5%, depending on the size of the container.

Significant elongation downward of the outer surface beyond the height of the waist is essential for the intended centering and guiding effects. It is possible to attach the cover with a simple pressure essentially only on the dome. The outer surface may be at least 2.5 times the height of the locking groove. Even better if 3 or even 4 heights of the locking groove are selected. It should be noted that due to the pressure between the outer surface and the wall of the container, as well as a significant contact area, an extremely effective sealing is created in addition to the sealing effect of the shoulder in the fixing groove.

A taper angle in the range of about 6-12 °, i.e. the full taper angle is about 12-24 °. The preferred range of angles is approximately 8 - 2 006466

10 °, i.e. ultimately about 16-20 °.

The recesses made where the top of the upper wall of the dome is connected to the outer wall of the dome, facilitate easy attachment of the lid and increase the rigidity of the dome. In addition, the recesses create visible marks for the application of the fingers and determine the places for capture in order to conveniently remove the lid from the stack of lids. Embedded recesses not only create a grip for the hand, but can even create ledges for folding covers. Each lid can be supported only by the ledges of the recesses on the upper wall of the dome of the subsequent lid, while the lids in the stack will not be clamped.

In order to achieve a firm, tight fit between the shoulder and the fixing groove, which is important for sealing, the radial thickness of the shoulder must be greater than the radial width of the inside of the fixing groove. The soft paper or cardboard of the container and the collar material lend themselves, respectively, to the inside and the outside, as soon as the collar is installed in the fixing groove. The presence of flattened zones with flat, i.e. not only linear, contact areas lead to an improved sealing effect.

The radial thickness of the shoulder should exceed 10-20%, preferably about 15%, the average radial width of the inner part of the fixing groove. Such a determination of the dimensions leads to an optimal sealing effect and, at the same time, to the need for only moderate efforts necessary to secure the lid to the container.

To enhance the effect of holding the lid on the shoulder and to gradually flatten the material, the radial width of the inner part of the fixing groove can be reduced in the direction opposite to the direction of attachment, it is more appropriate in accordance with the angle of the taper of the container wall. The locking groove will thus create a wedge effect until the collar finally takes its place.

In order to achieve an improved holding effect for the attached lid, at least one zone in the form of a belt with an increased friction coefficient must be provided on the outer surface of the outer supporting wall and / or the inner wall of the container. This can lead to increased adhesion due to friction of the lid with the container and give rigidity to the area of the opening of the glass.

An additional important aspect of the present invention is that the constriction may consist of successive deeper and smaller recesses formed externally. It is preferred that the deeper circumferential recesses are longer than the shallow recesses. This condition facilitates attachment, but at the same time creates a stable and strong retention, and also gives rigidity to the periphery of the lid.

It is possible to create a series of protruding portions that characterize the type of beverage that are located in the upper wall of the dome and are designed to be able to identify the type of liquid from the outside, for example, Coca-Cola, diet Coca-Cola, orange juice, etc. The protruding parts may be plug-in plugs.

An additional important aspect, in the General case, is the area of penetration formed in the upper wall of the dome. This region may have a wall thickness less than at least the thickness of the upper wall of the dome, and also contain intersecting lines of notches, through which you can simply enter a straw, destroying the lines of notches. The reduced wall thickness makes it easier to introduce a straw. Reduced wall thickness can be created by locally compressing the cover material. The region of reduced wall thickness is particularly useful for a relatively stiff lid having a slightly thicker wall than similar conventional lids. However, creating a thinner area is a common advantage of all such covers since this facilitates the introduction of straws.

The penetration area intended for the introduction of straws, it is advisable to create in the bottom of the recess, for example, located in the center of the upper wall of the dome. The reduced bottom wall thickness increases the stiffness of the dome, taking into account the ease of attachment.

The penetration area can be concave inward to facilitate the introduction of straws and increase resistance to bending outward under the influence of fluid pressure. Curvature also leads to an automatic closing effect of the broken lines of the notches after the straw is removed, as well as under the influence of fluid pressure from the inside on the valves formed by the broken lines of the notches. The contour contour corresponding to two ellipses, the main axes of which are offset by 90 ° relative to each other, increases the stiffness of the dome and gives an attractive appearance to the dome structure. It is advisable to carry out notch lines along the principal axes of both ellipses. Instead, to facilitate the introduction of straws, it is enough to have only a thin middle part of the bottom surrounded by a wall.

An additional important aspect of the invention is directed to the creation of an easily attachable lid designed for a conical container with a double wall of paper or cardboard. Double-walled paper or paperboard containers typically have an opening region where the inner wall of the container is deformed externally at the step and connected to the outer wall of the container. On top

- 3 006466 the end of the inner wall of the container is made shoulder. The taper angle of the conical inner wall of the double-walled container has a large value below the expanded upper region of the hole, which forms a continuation of the lower wall of the container in the form of a circular ledge and has a smaller, or even zero, taper angle compared to the lower wall of the container. The lid placed on the shoulder is already in contact with the inner wall of the expanded region of the hole by means of a centering and guiding conical surface when the shoulder reaches contact with the constriction. During attachment, the lid is centered and guided over the shoulder. The centering and guide protrusion is retracted inward due to the deformation that arises between the dome pressed down and the fixing groove, while the shoulder passes the waist more easily. When attached, the lid creates high tightness and stiffens the area of the container opening.

It is advisable that the taper angle of the outer surface or the centering and guide protrusion is zero or less than the taper angle of the inner wall of the container. A rigid centering and guiding protrusion introduces a collar into the locking groove to ensure tightness, and may even cause deformation of the opening region of the double-walled container in order to seal and increase the rigidity of the edge of the container.

In this case, the centering and guiding protrusion should be continued downward due to the inner stepped part of the outer supporting wall, made with dimensions that ensure interaction with the container wall on a press fit. That part, which is made with a step inward, should have a taper angle substantially equal to the taper angle of the inner wall of the container below the upper step region of the hole. The interaction between the stepped part and the inner wall of the container provides enhanced sealing effect even in the depths of the inner part of the container.

Embodiments of the invention are explained below with reference to the drawings, in which FIG. 1 is a side view of a cap;

FIG. 2 is an axial section through the lid of FIG. one;

FIG. 3 is an axial section of the container for which the lid is shown in FIG. 1 and FIG. 2;

FIG. 4 shows an enlarged section at the stage during which the lid is attached to the container;

FIG. 5 is a section at the stage of complete attachment of the lid to the container;

FIG. 6 is an axial section of an additional embodiment of a cap;

FIG. 7 is a side view of a portion of the lid of FIG. 6;

FIG. 8 is a portion of the cap portion shown in FIG. 6, at the stage of attaching the lid at the moment the shoulder of the container reaches the waist;

FIG. 9 is a view corresponding to FIG. 8 in the step of attaching the cover when the locking groove is temporarily opened during attachment of the cover;

FIG. 10 is a view corresponding to FIG. 8 in the step of properly attaching the cap;

FIG. 11 is a top view of the dome of the lid of FIG. 6;

FIG. 12 is an axial section through the center of the dome of FIG. 11, in the section plane ΧΙΙ-ΧΙΙ;

FIG. 1 3 - axial section of an additional embodiment of the cover;

FIG. 14 is a plan view of the lid of FIG. thirteen;

FIG. 15 is a stack of caps, consisting of several caps shown in FIG. 1 3 and 1 4;

FIG. 1 6 is an axial section of the lid and container with a double wall at the preparatory stage of attaching the lid;

FIG. 17 is an axial section similar to that shown in FIG. 16, with a lid fully attached to the double-walled container;

FIG. 18 is a section similar to that of FIG. 5, for another embodiment.

The cover Ό, intended for use with a container C made of paper or cardboard, or plastic material, is obtained, for example, by drawing from an elastic polymer film having a wall thickness of, for example, 0.3-0.5 mm (Fig. 1). This lid is made with the possibility of attaching to the opening region 9 of the container C so that said container C is closed without leakage and separation of the lid Ό even if the filled container C falls. The lid Ό (Fig. 1) is provided with a peripheral circular continuous fixing groove 1, over the plane of which, from the inside of the fixing groove 1, the dome 2 rises. The dome 2 is separated from the fixing groove 1 by a circular, substantially uniform recess V and has a substantially flat upper wall 5 of the dome and several recesses 3 distributed around the circumference The outer supporting wall 4 of the recess V of the lid (Fig. 2) extends relative to the fixing groove 1 a considerable distance down beyond the plane of the fixing groove 1.

The lid Ό (Fig. 2) is attached to the opening region 9 of the container C (Fig. 3) by applying pressure B, for example, only to the upper wall 5 of the dome in the direction of attachment. The upper wall 5 of the dome extends substantially parallel to the plane of the cover Ό. The recess V of the lid has an I-4 006466 cross-section and concentrically surrounds the dome 2. The recess V of the lid is limited by the outer supporting wall 4, which in this embodiment converges downward, the lower I-shaped part 22 and the inner supporting wall 23, which forms the protruding up outer wall of the dome. The outer supporting wall 4 has an outer surface 6 extending into the fixing groove 1. The outer surface 6 is made with a taper angle α / 2, which can correspond at least substantially to the taper angle α / 2 of the wall 7 of the container C.

At the lower end of the wall 7 of the container in FIG. 3, the bottom 8 of the container is made, and the region 9 of the opening of the container is limited by the wall 7 of the container and the protruding shoulder 10, preferably the so-called twisted edge 11, made of cardboard or paper, i.e. from the material of the container C. If the container is made of plastic, it is also possible to create a shoulder 10 by injection molding. Instead, the collar can be half a collar in the form of a curl or look like the protruding edges of the container.

In FIG. 4 shows the cover Ό located on the shoulder 10, which is made in the form of a twisted edge 11. The constriction 14 of the cover Ό rests on the shoulder 10.

The outer abutment wall 4 at the upper end is continued by a wall 1 2 extending approximately parallel to the plane of the lid and a circular visor 13. The visor 13 extends approximately parallel to the axis of the lid к down to the waist 14. The waist 14 may be in the form of a recess in the form of a groove from the outside and form the inner part is in the form of a rounded crest 15. The crest 15 and the constriction 1 4 can be continuous in a circular direction, or, alternatively, can be formed by separate local recesses between which (a dotted line is shown i) the outer contour approximately conserved. From the waist 14, an outwardly inclined wall 16 extends downward, forming a fastening slope 17. An additional visor 18 extends downward from the wall 16 and ends at the outer flange 19. The height of the additional visor 18 may be shorter than shown.

The radial thickness Υ of the collar 10, measured at the transition from the straight wall 7 of the container to the bend of the collar 10, can exceed the radial internal width Υ1 of the fixing groove 1. The radial thickness Υ can exceed the internal width на1 by 10% -20%, preferably by about 15%. In the fixing groove 1, the radial inner width Υ1 gradually decreases, preferably with a taper angle a / 2 in the direction from the waist 1 4 to the wall 1 2.

The fixing groove 1 determines the length b between the ridge 15 and the inner side of the wall 12. The outer supporting wall 4 extends downward from the location along the height of the waist 14 by a length b1, which can exceed the height b by 2.5 times, preferably 3 times, and even more preferably 4 times or more.

The outer diameter Ό1 of the outer surface 6 of the outer supporting wall 4 at the location along the height of the waist 14 (for example, ridge 15), at least substantially corresponds to the inner diameter Ό7 of the wall 7 of the container at the shoulder 10, i.e. at the transition from the straight wall 7 of the container to the outward bending of the shoulder 10. The outer diameter Ό2 of the outer surface 6 of the outer supporting wall 4 in connection with the wall 1 2 even significantly exceeds the inner diameter of Ό7, preferably by 1.5-5.0%, preferably approximately by 3.5%.

When pressure B is applied to the dome 2 in FIG. 4, the outer surface 6 is already in contact, sliding, with the container wall 7 before the collar reaches the waist 1 4, or at the moment the collar 10 reaches the waist 14. The recess V of the lid forms a centering and guiding protrusion K, which serves as a support and facilitates easy attachment of the lid Ό . It is more advisable if the sliding contact is established even before the collar reaches the waist 1 4. With a further additional pressing down of the cover Ό, the collar 10 will elastically deform the waist 14 to the outside, during this process the collar 1 0 is also slightly deformed before it passes through the ridge 1 5 and snaps into the locking groove 1 (Fig. 5). The cross-hatched areas shown in FIG. 5, indicate the squeezed sections 20, 21 formed in the shoulder 1 0 and the wall 7 of the container and contribute to sealing, retention and stiffening. In another embodiment, or as a supplement, the outer abutment wall 4 may also extend slightly inward (as indicated by the dashed lines at 21 ′).

Cover Ό shown in FIG. 6-10, different from the cover Ό in FIG. 1-5 modified design of the waist 1 4 and the recess 24 in the upper wall 5 of the dome. The constriction 1 4 (Fig. 7) is formed by sequentially alternating deeper and smaller recesses 16A and 16b. The recesses 16a, 16b form an internal ridge 15 'formed in the form of a wavy line. The deep recesses 16a in the circular direction can be longer than the shallow recesses 16b. Additionally, in FIG. 7, the dashed line shows the shortened visor 18.

In FIG. 6, the recess 24 has in the dome a bottom region 25 of a limited size substantially parallel to and located below the upper wall 5 of the dome. The wall thickness x of the lid Ό is substantially constant. Only region 25 is thinner (x1 thickness), for example by squeezing the material. Area 25 is located in the center of the upper wall 5 of the dome. To introduce the straw, the region 25 is made with intersecting destructible lines of 26 notches. It is more expedient that the region 25 can be bent to the inner side of the dome 2.

The recesses 3 in the transition from the upper wall 5 of the dome to the inner supporting wall 23 increase the rigidity of the dome 2 and make it possible to grab the lid Ό with your fingertips, for example, to more easily remove the lid Ό from the stack of lids and put the lid Ό on the container C. The fixing force B can be attached through recesses 3 on the dome. However, in a preferred case, easy attachment can be achieved by pressing the palm of the hand on the upper wall 5 of the dome.

In FIG. 6, the outer supporting wall 4 can have at least one circular zone 30 in the form of a belt with an increased coefficient of friction in order to achieve a more effective retention effect at the time of attachment of the cover. Zone 30 may be located higher than shown, or may be narrower or wider. A corresponding zone with an increased coefficient of friction can also be created on the wall 7 of the container, either instead of zone 30 on the lid, or together with zone 30 on the lid Ό.

The continuous continuous hinge mechanism M is integrated in the cover Ό due to the design and shape of the dome 3 and the recess V of the cover. The hinge mechanism may facilitate the attachment of the cover Ό, as shown in particular in FIG. 6-10.

The hinge mechanism M of the cover Ό consists of a dome 2, an internal supporting wall 23, an части-shaped part 22 and an external supporting wall 4. The transitions of the external supporting wall 4 to the ϋ-shaped part 22, as well as the ϋ-shaped part 22 to the internal supporting wall 23 determine the hinges 29. The inner support wall 23 extends substantially parallel to the longitudinal axis of the lid, while the u-shaped portion 22 is flat and perpendicular to the axis of the lid. It should be noted that due to the stiffness of the dome 2 and the smaller diameter of the inner supporting wall 23 compared to the larger diameter of the outer supporting wall 4, the outer supporting wall will be easier to feed in than the inner supporting wall 23. This circumstance is used to temporarily open the fixing groove 1 and the lung attaching the cover.

In FIG. 8, the lid Ό is placed on the shoulder 10 of the container C so that the entire circular extension of the waist focuses on the shoulder 10. The outer supporting wall 4 comes into contact with the wall 7. Then, a fixing force B is applied, for example, with a flat hand to the upper wall 5 of the dome, while the upper wall 5 of the dome will not fall (Fig. 9).

In FIG. 9, the reaction force B ′ counteracts the fixing force B, since the constriction 14 takes place on the shoulder 10. The inner support wall 23 tilts the ϋ-shaped part 22 downward due to the internal hinge 29 located at the transition from the inner support wall 23 to the ϋ-shaped part 22. Thanks the radial stiffness of the dome 2, the tilt of the ϋ-shaped part leads to a force 28 acting on the external hinge 29. The force 28 frees the outer abutment wall 4 from the wall 7 of the container so that even the locking groove 1 can open slightly at morning side. The visor 18 is shifted outward in the direction of the arrow 27 due to the reaction force B 'so that even the locking groove 1 can temporarily open slightly on the outside. Under the influence of the fixing force B and due to the lowering of the upper wall 5 of the dome, as well as under the influence of a possible subsequent pressing on the wall 1 2, the collar 1 0 slides behind the constriction 1 4 until it is finally tightly fixed in the fixing groove 1.

In FIG. 10 the effect of the fixing force B is terminated. The ϋ-shaped part 22, which has returned due to elasticity to a position essentially perpendicular to the axis of the lid, presses the outer abutment wall 4 against the wall 7 of the container. Visor 8 also restored its position due to elasticity. The locking groove 1 firmly holds the collar 10. The centering protrusion K and the locking groove 1 significantly tighten the portion of the opening of the container C.

In FIG. 11, the recess 24 has a wall contour in the form of a four leaf, i.e. the contour can be characterized by two equally sized ellipses, in which the main axes are offset by 90 °. Lines 26 of notches in region 25 extend along the main axes of both ellipses. In FIG. 12 shows, on an enlarged scale, the difference between the wall thickness x and the wall thickness x1 in the region 25. The region 25, as shown, can be bent inward or can extend parallel to the upper wall 5 of the dome. There is no need to create a reduced wall thickness x1 for the entire area 25. It is enough to create only a thin central part of the wall of the area 25, for example, by compressing the material in the production of the cover Ό.

The radial width of the circular ϋ-shaped portion 22 in FIG. 6-10 may comprise about 10% of the outer diameter of the lid Ό, while the diameter of the upper wall 5 of the dome may be about 60% of the outer diameter of the lid Ό.

An embodiment of the cover Ό shown in FIG. 13 and 14, similar to the embodiment shown in FIG. 6-12, but additionally has protruding parts 5a, symmetrically distributed in the upper wall 5 of the dome and characterizing the type of drink. There are, for example, four oval protruding parts 5a characterizing the type of beverage, on top of each of which there is a marking and / or plug-in cap. In this market, such a device is standard for many caps. The protruding parts 5a are located at a small radial distance from the outer edge of the upper wall 5 of the dome, as well as at a small radial distance from the central recess 24.

- 6 006466

In addition, recesses 3 were made in the form of undercuts, which can be easily grasped with your fingertips if you need to remove cover Ό from a stack of several covers (as shown in Fig. 15). Each recess 3 can create a side ledge 3a, which can serve as a stop in the stack of covers, as shown in FIG. 15, while the ledge 3a rests on the upper wall 5 of the dome of the subsequent cover Ό in the stack. The step 3a preferably prevents mutual clamping of the folded lids, since the folded lids are in contact with each other mainly at the point of support of the ledges 3 and on the upper wall 5 of the dome and at the contact of the outer supporting walls with each other. This feature leads to an ordered and compact stack from which each cover Ό can be conveniently removed. In the shown embodiment, eight recesses 3 are made.

Cover Ό in FIG. 13-15 also has a centering and guiding protrusion K (guiding cone) and an articulated mechanism M, which facilitate attachment.

In FIG. Figures 16 and 17 show the cover Ό, which is easily attached to the double-walled FE container. The double-walled SE container has an inner wall 7 and an outer wall 7c with an air gap between them, intended for thermal insulation. The bead 10 is made at the upper end of the inner wall 7. The double-walled FE container is first made with a taper angle α / 2, which remains up to the bead 1 0. During the formation process, the upper part of the inner wall 7 is expanded outward to form an opening region 9a where the taper angle α / 2 is less than the taper angle α / 2, or even almost equal to zero, and the step 7b. The cover Ό for the double-walled FE container has the centering and guide protrusion K already described. In this case, the protrusion K is made so that the outer surface 6 is either cylindrical in shape (as shown) or has a small taper angle β / 2 from 0 ° ( cylindrical shape) to a value close to, but smaller than, the taper angle α '/ 2. The outer surface 6 or the outer supporting wall 4 is continued by the inwardly stepped part 4b of the wall with the formation of a step 4A. Part 6a of the outer surface of the wall portion 4b is inclined at a taper angle α / 2. The bottom of the centering and guide protrusion K is formed by a ϋ-shaped part 22, which extends essentially perpendicular to the Central axis of the cover. The diameter Ό1 of the outer surface 6 essentially corresponds to the diameter Ό7 of the hole region 9a in the shoulder region 10. In the hole region 9a, the inner parts of the inner wall 7a of the container and the outer parts of the outer supporting wall 4, as well as the wall part 4b, are shown as being deformable or coming into close contact compression when the cover Ό is fully attached to the double-walled FE container.

In FIG. 16, the cover рована is centered on the double-walled FE container, while the shoulder 10 reaches the waist 1 4 from the bottom. At this time, the outer surface 6 is already in contact with the inner wall 7a of the container in the opening region 9a in order to properly center and guide the lid Ό by applying a fixing pressure B to, for example, the top wall 5 of the dome (not shown in FIG. 1-6).

While the fixing pressure presses the constriction 1 4 over the shoulder 1 0, the outer surface 6 guides the cover Ό. When the I-shaped part 22 is tilted down, as already explained above, the outer supporting wall 4 is somewhat shifted inward, and the constriction 14 is fed outward. This circumstance facilitates the easy slip of the waist 1 4 along the shoulder 10 to the position shown in FIG. 17. The shoulder 10 is then gripped from the outside and inside. The contacting parts (20 and 20 ') of the wall can come into a compressed state. The ledge 4a either sits on the ledge 7b, or at least is located close to the ledge 7b. In the region 20 ', in addition to the sealing effect achieved by the interaction of the fixing groove 1 with the shoulder 1 0, as well as the outer supporting wall 4 with the inner part 7a of the container wall, a special contact pressure is achieved, leading to an additional sealing effect. In FIG. 1 to 7, it is shown that due to the rigid construction of the lid dome Ό, it is even possible to arrange the inner part 7a of the container wall in parallel with the outer supporting wall 4, which leads to a large holding force and an excellent result, as well as to significantly tighten the part where the opening of the closed container is SE.

In addition, the interaction of the steps 4a and 7b can create a restrictive stop when attaching, preventing too much deformation of the shoulder. The adjacent ledges 4a and 7b can even support the shoulder 1 0 and the fixing groove 1 in the preload state, characterized by high tightness and high holding force of the cover Ό.

FIG. 18 is a sectional view of a lid Ό attached to a single-wall container C, similar to that shown in FIG. 5. In this case, the collar 10 is completely twisted inward. The locking groove 1 of the cover Ό has a rounded shape in cross section. Cross-hatched areas are areas of strong contact, for example, even slightly crushed portions of the surface. In this case, there is a tight contact of the fixing groove 1 with the shoulder 10 along the surface of the circumference of the shoulder 10, exceeding 180 °. The outer supporting wall 4 significantly tightens the upper region of the hole, protecting it from radial deformation.

Claims (9)

CLAIM 1 5. Cover according to claim 1, 3, characterized in that the constriction (1 4) consists of consecutive and alternating deeper and smaller recesses (16a, 16b) arranged on the outside, the length of the deeper recesses ( 16a) circumferentially exceeds the length of smaller recesses (16b). 16. The lid according to claim 13, characterized in that the upwardly extending portions 5a characterizing the type of beverage are symmetrically distributed in the upper wall (5) of the dome. 17. A cover according to claim 13, characterized in that a penetration region (25) of a predetermined size is made in the upper wall (5) of the dome, having a wall thickness (x1) less than at least the thickness (x) of the upper dome wall, the penetration region (25) for introducing the straw is formed by intersecting lines (26) of the notches and is made on the thin bottom of the recess (24) enclosed by a wall and formed in the upper wall (5) of the dome, and this bottom is located below the upper wall (5) of the dome, and the thickness of the thin wall of the bottom (x1) is obtained by local compression of the material. 18. Cover according to claim 17, characterized in that the recess (24) is located essentially in the center of the upper wall (5) of the dome, while the recess (24) has a contour of the wall of the recess, essentially corresponding to two overlapping ellipses of the same size, the main axes which are offset relative to each other by 90 °, while the indicated lines (25) of the notches pass along the intersecting major axes of the ellipses. 19. A lid (Ό) made of plastic, in particular intended for a conical container (SE) with double walls made of paper or cardboard having an outer flange (10) at the conical step region (9a) of the hole having a peripheral fixing groove (1), which is open on the lower surface of the lid to accommodate the shoulder (10), while the extension of the fixing groove (1) at its outer lower end is an elastically tensile constriction (14), and at the inner lower end is a cylindrical or conical outer surface (6) of the outer supporting wall (4) pass a circumferentially extending lid recess (V) having a substantially I-shaped cross section with an I-shaped part (22) located below the height of the waist (1 4), the inner supporting wall (23) of the recess (V) being part of the wall of the dome (2) containing the upper wall (5) of the dome, located much higher than the location of the waist (14) in height and the fixing groove (1), characterized in that the recess (V) of the lid is made with such a depth that it goes down for the location of the waist (14) in height, and with such the outer diameter (Ό1) at the outer surface (6) essentially at the location of the waist (14) in height, so that the recess (V) of the lid creates a centering and guiding protrusion (K), designed to interact with the conical step region (9a) of the container opening (SI) with a double wall, providing easy attachment of the cover (Ό) to the shoulder (10). 20. The lid according to claim 19, characterized in that the centering and guide protrusion (K) is extended downward by an internal stepped part (4a, 4b, 6a) made with dimensions for engaging on a press fit with the area of the wall (7) of the container located below conical and step region (9a) of the hole. 21. The container (C) in the form of a glass, in particular of paper or cardboard, with an attached lid (Ό) made of plastic, in which the region (9) of the hole is limited by the tapered wall (7) of the container tapering up and out and protruding outwardly (10 ), in particular in the form of a twisted edge (11), and the lid (Ό) is made with a peripheral locking groove (1), which is open on the lower surface of the cover for placing a collar (1 0) in it, while the fixing groove (1) has at the area of the outer lower end, an elastically tensile constriction (1 4), and on the inner orone - a cylindrical or conical outer surface (6) of the outer abutment wall (4) of a lid extending around the circumference (V) having an I-shaped cross section, the I-shaped part (22) of the lid recess (V) being located below the waist (14) in height, the inner supporting wall (23) of the lid recess (V) is part of the dome wall (2) having the dome top wall (5) located, respectively, above the waist and the fixing groove, 1 2. The container according to claim 1 0, characterized in that the radial inner width (Υ1) of the fixing groove (1) decreases from the waist (14) in the opposite direction to the attachment direction. 13. A lid (Ό) made of plastic, in particular for a conical container (C) made of paper or paperboard having an outer flange (10) in an opening region (9) having a peripheral locking groove (1) that is open on the lower surface of the lid to place a collar (1 0) in it, while the extension of the fixing groove (1) at its outer lower end is an elastically tensile constriction (1 4), and at the inner lower end, a cylindrical or conical outer surface (6) of the outer supporting wall ( 4) circumferential recess (V) to pits having a substantially I-shaped cross section with an I-shaped part (22) located below the height of the waist (14), the inner supporting wall (23) of the lid recess (V) being part the walls of the dome (2) containing the upper surface (5) of the dome, located significantly higher than the location of the waist (14) in height and the fixing groove (1), characterized in that the recess (V) of the lid is made with such a depth that it passes substantially down for the location of the waist (14) in height, and with such external diameter (Ό1) at the outer surface (6), and essentially at the location of the waist (14) in height, that the recess (V) of the lid creates a centering and guiding protrusion (K), designed to easily attach the lid (Ό) to the shoulder ( 10) container (C). 14. The lid according to claim 13, characterized in that the dome (2) and the recess (V) of the lid, as a rule, form a circular continuous hinge mechanism (M) designed to temporarily open the locking groove (1) by retracting the outer supporting wall ( 4) inward, said mechanism being made as a whole, (M) actually acts during the attachment of the cover, mainly under the influence of pressure (K) applied to the upper surface (5) of the dome to move the dome relative to the fixing groove (1). 1. The container (C) in the form of a glass, in particular paper or cardboard, with an attached lid (Ό) made of plastic, in which the region (9) of the hole is limited by the tapered wall (7) of the container tapering up and out and protruding outwardly (10 ), in particular in the form of a twisted edge (11), moreover, the cover (Ό) is made with a peripheral locking groove (1), which is open on the lower surface of the cover for placing a collar (10) in it, while the fixing groove (1) has the area of the outer lower end is an elastically tensile constriction (14), and on the inner one one is the cylindrical or conical outer surface (6) of the outer abutment wall (4) of the circumference of the lid recess (V) having an I-shaped cross section, wherein the I-shaped part (22) of the lid recess (V) is located below the waist (14) in height, the inner bearing wall (23) of the lid recess (V) is part of the dome wall (2) having the dome top wall (5) located respectively above the waist and the fixing groove, characterized in that the recess (V ) the cover is made with such a depth that significantly extends downward for the location of the waist (14) in height, and has an outer diameter (Ό1) on the outer surface (6) at the height of the waist (14), consistent with the inner diameter (Ό7) of the container wall (7) at the shoulder (10) so that during simple attachment of the lid (Ό), the outer surface (6) of the lid recess (V) acts as a centering and guiding lid protrusion (K) interacting by sliding contact with the container wall (7), at least up to as long as the collar (10) passes through the constriction (14 ) into the fixing groove (1) with the downward pressure (K), which is mainly applied to the dome (2). 2. The container according to claim 1, characterized in that the I-shaped part (22) is generally flat and substantially perpendicular to the axis of the lid, and the inner supporting wall (23) extends substantially parallel to the axis of the lid. 3. The container according to claim 1, characterized in that the centering and guide protrusion (K) is made so that it interacts by sliding contact with the wall (7) of the container before the collar (1 0) reaches the constriction (1 4) from the bottom side. 4. The container according to claim 1, characterized in that at a level located essentially at the location of the waist (14) in height, the outer diameter (Ό1) of the outer surface (6) corresponds to at least the inner diameter (Ό7) of the wall (7) the container in the region (9) of the hole, and the taper angles (α / 2) of the wall (7) of the container and the conical outer surface (6) are at least approximately equal. 5. The container according to claim 4, characterized in that in the fixing groove (1), the outer diameter (Ό2) of the outer surface (6) exceeds the inner diameter (Ό7) of the wall (7) of the container in the opening region (9). 6. The container according to claim 1, characterized in that the outer surface (6) extends downward for the location of the waist (14) in height to a length (L1) of at least 2.5 height (b) of the fixing groove (1) . 7. The container according to claim 1, characterized in that the outer surface (6) extends downward beyond the location of the constriction (14) in height by at least a length (b1) of 3 dimensions of the internal height (b) of the fixing groove (1) preferably even 4 sizes or more of this height (b). 8. The container according to claim 1, characterized in that the taper angle (α / 2) is about 6-12 °, preferably about 8-10 °. 9. The container according to claim 1, characterized in that the dome (2) contains recesses (3) distributed around the circumference, preferably four or eight uniformly distributed recesses (3) of the same size and depth at the transition between the upper wall (5) of the dome and the passage upward with an internal supporting wall (23), each recess (3) creates a cut-in hollow for gripping with fingers in the internal supporting wall (23) and is made with a lower ledge (3a), which creates an emphasis when folding the covers. 10. The container according to claim 1, characterized in that the radial thickness (Υ) of the collar (10) exceeds the radial internal width (Υ1) of the fixing groove (1). 11. The container according to claim 10, characterized in that the radial thickness (Υ) of the shoulder (10) exceeds the average radial inner width (Υ1) of the fixing groove (1) by approximately 10-20%, preferably approximately 15%. - 9 006466 characterized in that the recess (V) of the cover is made with such a depth that it significantly goes down beyond the location of the waist (14) in height and has an outer diameter (Ό1) on the outer surface (6) at the height of the waist (14) matched to the inner diameter (Ό7) of the wall (7) of the container at the shoulder (10) so that during simple attachment of the lid (Ό), the outer surface (6) of the lid recess (V) acts as a centering and guiding lid protrusion (K ) interacting by sliding contact with the wall (7) the container, at least until the collar (10) passes through the constriction (14) into the fixing groove (1) with the downward pressure (K), which is mainly applied to the dome (2), and the fact that the centering and guide protrusion (K) of the lid and the attached fixing groove (1), as a rule, create an annular tightened structure of the region of the container opening, preventing radial deformation of the container opening.