Waste container with container closing mechanism and method of operation of the waste container with a closing mechanism
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZIELINSKA KATARZYNA
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-07
AI Technical Summary
Existing diaper containers have complex structures that compromise economy of production, simplicity of operation, and effective odor containment.
A waste container with a simple closing mechanism featuring a tank, detachable cap, and rotatable drum with variable thickness heads and catches, ensuring easy assembly, odor containment, and hygiene maintenance.
The mechanism provides a cost-effective, user-friendly solution that minimizes odor leakage and maintains hygiene by using a minimal number of components and a bactericidal insert, ensuring easy cleaning and effective waste disposal.
Smart Images
Figure IB2025056623_07052026_PF_FP_ABST
Abstract
Description
[0001] Waste container with container closing mechanism and method of operation of the waste container with a closing mechanism
[0002] The subject of the present invention is a waste container with a container closing mechanism designed, in particular, for families with an infant, which is intended primarily for used disposable diapers, but also other hygienic waste. In addition, the subject of the invention is the method of operation of a waste container with a container closing mechanism.
[0003] Many solutions of diaper containers are known from the state of the art, for example from the international patent description WO2006126879A2 entitled "Device for placing and containing soiled objects therein" with the priority date of 23.05.2005. NL 1029093 a device is known for placing and storing objects in it, in particular soiled objects such as soiled diapers, consisting of from the container and lid. Wherein said cover comprises a hollow tubular member which is open at least at one end in which a body capable to the reciprocating movement is located. Said cover is rotatable relative to the container between a first position in which the object can be placed in the tubular element from the outside, and a second position in which the body can move downwards in the tubular element due to force of gravity to push the object into the container. A special feature is that the device consists of a sleeve made of a flexible material disposed within a tubular member, the sleeve being closed near its first end, the body being connected to the sleeve near the closed end of the sleeve, and the sleeve being attached to the tubular member along its circumferential edge near its second end.
[0004] From the Chinese description of the utility model CN214030277 (U) entitled "Diaper barrel" filed for protection on November 27, 2020, a diaper pail is known, which includes a cylindrical body and a diaper pail cover body. The cover body is provided with a first housing chamber, and a spherical container with a first opening is pivotally connected to the first housing chamber by a pivot mechanism. The upper end surface of the cover body is provided with a second opening through which the outer wall of the spherical container may pass. The outer wall of the side of the spherical container protruding from the second opening is provided with a handle that can drive the spherical container so that it rotates in the first receiving chamber. The upper end surface of the cap is provided with a limiting mechanism which may limit the rotation of the handle. The first opening is provided with a first opening passing through the outer wall of the spherical container. In the first through opening, a waste storage box is slidably connected. Between the cap body and the tank body there is a first support for placing a waste bag. The centre of the first support is provided with a second through opening allowing the contaminants contained in the box to enter when the first opening of the spherical container is directed towards the tank.
[0005] From the international patent description WO2014035249A1 entitled "Waste device for refuse, especially for diapers" with the priority date of September 3, 2012. NL2009408A a waste removal device is known consisting of a container having a bottom, a peripheral wall and a cover closing the opening of the container. The cover includes a drum housing and a drum body pivotally connected to the cover. The waste disposal device further includes a flexible sealing member connected to the drum housing having a sealing portion that extends radially inward from the connecting portion and that can be sealed to the outer surface of the drum. The drum body for sealing the opening of the container is substantially odourless. According to the invention, the end of the flexible sealing member which is spaced from the connecting part is free from any connection to the drum housing such that a freely movable free end of the flexible sealing member is formed.
[0006] From the American patent description US5765339A entitled "Diaper pail" with a filing date of May 12, 1997, a diaper pail is known, wherein the container receives and stores soiled objects through a valve structure that receives the soiled object through an open entrance opening and the soiled object falls into the container through a closed exit opening when the open entrance opening is closed and the closed exit opening is opened, while preventing odours from entering the area outside the container.
[0007] From the Polish application of the invention of 02.07.2024 entitled "Waste container and method of operation of the waste container", a waste container is known, the cover of which has a lateral cut-out, and its wall has a rotatable surface, which is essentially the inner surface of the sleeve. On its side surface at the axis of rotation a drum has at least one spline with a convex contact surface that is adjacent to the rotatable surface, and the rotatable surface has a pressure head in its upper part. A waste container which has an insert in the chamber of the rotatable drum is also known. The subject of the invention is also the method of operation of a waste container, in which a drum rotates around its axis of rotation by means of a handle connected to the drum by at least one spline, and each contact surface of the spline moves on a rotatable surface. In the final phase of the drum's rotation, when the inlet / outlet opening of the chamber coincides with the upper cut-out of the cover, the contact surface of the spline collides with the pressure head causing the rotating drum to move downwards relative to the cover and pressing the mating surface against the circumferential ring surface. This is repeated in the opposite direction so that in the final phase of rotation of the drum, the inlet / outlet opening of the chamber coincides with the inlet opening of the cap. In the final phase of this rotation, the contact surface of the spline located in upper position collides with the pressure head causing the rotating drum to move downwards relative to the cover and pressing the mating surface against the circumferential ring surface.
[0008] The existing solutions of diaper containers have a more or less extensive structure, which is associated with the economy of production, simplicity of operation or the release of unwanted odours from the container.
[0009] The technical problem solved by the invention is the creation of the mechanism for closing the diaper container having simple construction, in which the simplicity of the solution is optimized while maintaining the functionality and economy of production. Not only does this solution preserve the convenience and simplicity of use of the container, but also the developed design allows to significantly minimize the release of odours from the container to the outside during its use.
[0010] The essence of the developed waste container with the container closing mechanism, wherein the waste container is composed of a tank, a cap constituting a detachable part of the tank and a detachable cover with a rotatable drum located therein, containing a waste chamber and a handle connected to the drum, enabling the drum to rotate inside the cover, wherein the drum has a chamber with an inlet / outlet opening, is that the lateral surface of the drum, at the drum's axis of rotation, has a head of variable thickness. The cover has a catch attached to its lower inner surface, the catch has a lever in its upper part and under the lever it has hooks rotatably connected to the inner splines of the cover. In the lower part the catch has an overrun surface and a catching surface. On its inner wall, the tank has at least one catching head with a lateral surface. The cap, on the other hand, has at least one catching head in each through cut-out.
[0011] Preferably, each lateral surface of the drum has two heads of a variable thickness. Wherein the thickness of each head on the same side surface of the drum is increased in the opposite direction of rotation of the drum, i.e., the thickness of one head increases in the direction of the drum's rotation, and the thickness of the other head increases in the direction opposite to rotation of the drum.
[0012] Usually, in the lower part the catch has two overrun surfaces, i.e. it has an overrun surface and an overrun surface.
[0013] Often, the lower part of the catch has elastic properties.
[0014] In general, the tank has two catching heads on opposing inner walls of the tank.
[0015] Preferably, the cap has two catching heads in each through cut-out.
[0016] Most often, the catching head has a recess.
[0017] Usually, there is a lateral surface at the opening of the bag between the outer surface of the rotatable drum and the inner surface of the circumferential ring.
[0018] Preferably, there is a spring between the catch lever and the inner wall of the cover.
[0019] In general, the drum is made of flexible plastic or the cover is made of flexible plastic or the cap is made of flexible plastic.
[0020] Often, there is an insert in the chamber of the rotatable drum.
[0021] Usually, the insert on its side outer surface has a concave or convex catching lock and the chamber on the inner surface has a convex or concave catching lock that is either circumferential or punctual, respectively.
[0022] Preferably, the insert is made of metal or plastic that contains silver.
[0023] However, the essence of the method of operation of the container closing mechanism, wherein the waste container is composed of a tank, a cap constituting a detachable part of the tank, and a removable cover with a rotating drum located therein containing a waste chamber and a handle connected to the drum enabling the drum to rotate inside the cover and the drum has a chamber with an inlet / outlet opening, is that: a) a waste container is assembled by applying a cap to the top of the tank; b) a bag is inserted into the tank through the inlet opening by winding the inlet end of the bag on the circumferential ring, such that the upper outer surface of the bag abuts the inner surface of the circumferential ring; c) through the cap, the cover on the tank is fixed by means of catches, wherein each outwardly extended end of the catch slides into the corresponding cut-out in the cap and in the final stage of applying the cover, the lower part of the catch with the lateral overrun surface approaches the lower part of the catch with the lateral overrun surface due to the pressure on the overrun surface of the lateral surface of the catching head located on the upper inner surface of the tank wall, then when the catching surface of the catch is below the lower surface of the catching head, the lower part of the catch is expanded and the overrun surfaces move away from each other, and the catching surface begins to adhere to the lower surface of the catching head - the catches in the tank are blocked, and thus the tank is connected to the cover through the cap; d) in an assembled waste container, the external surface of the drum, irrespective of the position of the inlet / outlet opening of the drum chamber, presses the upper wall of the bag, at the inlet opening of the bag, to the inner surface of the circumferential ring of the cap; e) as a result of using an assembled waste container, the bag is filled with waste; f) the handle and the drum are rotated to the lowest position, i.e. to the downward resistance and then the head of a variable and gradually increasing thickness progressively presses against the lever located in the upper part of the catch and as a result of the rotation of the catch, which is enabled by its hooks, the catching surface of the lower part of the catch moves from the side wall of the tank to the inside of the tank from the lower surface of the catching head of the tank to the lower surface of the catching head of the cap located in the cut-out of the cap, and then the catch is released from the catching head of the tank, wherein the catching surface is preferably in the recess of the lower surface of the catching head of the cap to prevent accidental disconnection of the cover from the cap; g) the cover connected to the cap and the filled bag pressed in the upper part of the bag at its opening is lifted, with the external surface of the drum to the inner surface of the circumferential ring of the cap; h) under the cap, the bag is twisted by closing the opening of the bag and by pulling the bag, the end of the bag is pulled out through the inlet opening of the cap from the space between the outer surface of the drum and the inner surface of the circumferential ring of the cap; i) the lower part of the catches slides outwards, i.e. to the external setting, extending the catching surface of the catches beyond the catching heads of the cap and the cap is freely detached from the cover.
[0024] Preferably, the extension of the lower part of the catch to the external setting is supported by an expanding spring located between the catch lever and the inner surface of the cover. Usually, the insert is pulled out of the drum chamber, cleaned and inserted into the drum chamber.
[0025] The advantage of the present solution is the use of the mechanism for closing the waste container, the catches of which increase the functionality of the container with a minimum number of components in the waste container. The lower ends of the catches in their external / extended position allow permanent connection of the cover to the rotating drum contained therein, through a cap, with the tank while using the waste container, i.e. at the time when waste including diapers, is placed in it. However, when the ends of the catches are pushed inwards, thanks to the use of heads on the side surfaces of the rotatable drum acting at specific positions of the drum on the upper part of the catches, the tank is detached from the cover, while simultaneously locking the cap with the cover. One can easily lift the connected cover with the cap while lifting the bag filled with waste. The end of the bag does not leak, as its inlet opening is constantly sealed by its interlocking between the circumferential ring of the cap and the outer surface of the drum. This solution means that the filled bag can be twisted under the cap and only then can the end of the bag be slid out, thus optimizing the escape of unwanted odours.
[0026] An additional advantage of the developed waste container is also the ability to easily keep the container clean due to an additional insert placed in the drum chamber, which can be easily removed and washed. It is also preferable to use a material with bactericidal properties for the insert, e.g. a mixture of plastic with silver. Therefore, the developed solution allows to maintain hygiene and prevents the growth of bacteria, which is extremely important, especially since the commonly developed waste container is used in living quarters where infants are also present.
[0027] The invention is illustrated in the drawing in embodiments, in which:
[0028] Fig. 1 - shows a perspective and exploded view of the waste container with the order of assembly marked;
[0029] Fig. 2 - shows a perspective view of the waste container with the cap on the container and the waste bag;
[0030] Fig. 3 - shows a perspective view of the assembled waste container with the indicated position of the handle (of the drum), the use of the container, disengagement;
[0031] Fig. 3a - shows a perspective view of the assembled waste container with the drum positioned to allow the waste to fall out of the drum automatically to the tank, the use of the container;
[0032] Fig. 3b - shows a perspective view of the assembled waste container with the drum positioned to allow the waste to be thrown in, the use of the container;
[0033] Fig. 3c and Fig. 3d - shows a perspective view of the assembled waste container with the drum positioned to allow the cover with the cap to be detached form the tank, disengagement;
[0034] Fig. 4 - shows a perspective view of the waste container with the cap connected to the cover and the waste bag, disengagement, during emptying the waste container tank;
[0035] Fig. 5 - shows a perspective view of the waste container with the cap connected with the cover and the extended filled waste bag;
[0036] Fig. 6 - shows a perspective view of the upper components of the waste container, i.e. the handle and the cover with the catch and the drum, and the removable insert;
[0037] Fig. 7 - shows a perspective view of the assembled waste container with partly removed surface of components during the use of the container, the use of the container;
[0038] Fig. 8 - shows a perspective view of the catch;
[0039] Fig. 9 - shows a perspective view of the cap; Fig. 10 - shows a perspective view of the waste container with partial removal of the surface of the components (without the cap), transition from the use of the container to disengagement, the principle of operation of the catch during disengagement is shown; Fig. 11 - shows a perspective view of the waste container with partial removal of the surface of the components (with the cap), the cover with the cap disengaged from the tank, disengagement;
[0040] In the attached figures the closing mechanism of the waste container and the appearance of the container and the method of operation of the closing mechanism of the waste container are only shown as an illustration, while the final shape depends on the specific model.
[0041] Example 1. Waste container with container closing mechanism
[0042] The subject of the invention is a waste container with a container closing mechanism intended, in particular, for used diapers or other hygienic waste. The container consists of a tank 1 preferably of a square cross-section with rounded corners. The tank 1 is a solid that has a base, side walls, but there is no upper plane. The tank 1 has a cap 2 instead of its upper plane, and via the cap 2 it engages with the cover 3. The cap 2 is applied on the tank 1, preferably having a concave peripheral lower lip 4 sliding into the interior of the tank 1. The outer contour of the cap 2 and the lower surface of the cover 3 corresponds to the outer contour of the upper surface of the tank 1. On the other hand, the cover 3 is connected to the tank 1 and the cap 2 in a detachable manner by means of catches 5 rotatably connected to the cover 3. The ends of the catches 5 pass through the suitably shaped cap 2, are compressed by the internal components of the tank 1, after which they expand and lock in the tank 1 (as described in more detail below).
[0043] A rotatable drum 6 is located inside the cover 3. A generally cylindrical chamber 7 is located in the solid of the drum 6. The chamber 7 has a circular inlet / outlet opening 8 on one side. Waste is temporarily placed in the chamber 7. The circular inlet / outlet opening 8 fits in shape and size to the upper cut-out 9 constituting the opening in the cover 3 and to the surface of the circumferential ring 10 defining the inlet opening 11 in the cap 2.
[0044] On its two opposite lateral and essentially vertical walls the cover 3 has lateral cut-outs 12, preferably circular in shape. On the other hand, the drum 6 preferably has a ball shape or is similar in shape to a ball with flattenings 13 on both sides. On the sides of the drum 6, preferably on both sides of the drum 6 and on the flattening 13 (if any), there is at least one connector 14 at the rotation axis. Wherein each connector 14 can be connected to the rotatable drum 6 via a roll-shaped protrusion 15 of a slight height.
[0045] The cover 3 is applied to the drum 6 in such a way that each connector 14 (located on one side of the drum 6) is located inside the respective lateral cut-out 12 of the cover 3. The shape of the connector(s) 14 on one side of the drum 6 is matched to the lateral cut-out 12 of the cover 3, thus allowing the drum 6 to rotate inside the cover 3.
[0046] Through the lateral cut-outs 12 of the cover 3, via the connector(s) 14, the drum 6 is connected with a handle 16 responsible for rotating the drum 6 inside the cover 3. The handle 16 is connected to the drum 6 by means of fixings 17 located on the inside of the handle 16 fitted in shape and connecting to the corresponding connector(s) 14 of the drum 6. Most preferably, the handle 16 and the drum 6 are snapped together using intermediate components. Preferably, the handle 16 has a shape resembling an inverted letter "U" and then, with the appropriate positioning, the handle 16 allows the waste container to be moved. When an independent component is used to transfer the waste container, the handle 16 may also take the form of a knob that is located on at least one side of the cover 3 or a handpiece or a lever.
[0047] The head 18 is located on the lateral surface of the drum 6, preferably on both sides of the flattening 13, if the flattening 13 is made near the axis of rotation of the drum 6. The head 18 has a variable thickness, i.e. it is gradually thickened. The head 18 cooperates with the lever 19 constituting the upper end of the catch 5 of the cover 3 located above the hooks 20 of the catch 5. The hooks 20 (constituting a kind of pins protruding from the catch 5) connect to the splines 21 located on the inside of the cover 3, allowing the catch 5 to rotate. In addition, between the surface of the lever 19 and the inner surface of the cover 3, above the splines 21, a spring 22 is located to repel the lever 19 from the inner surface of the cover 3 wall, causing the lower part of the catch 5 to be automatically set in an external position allowing the container to be assembled for use (allowing waste to be disposed into the container). The lower portion of the catch 5 comprises a lateral overrun surface 23 and a substantially horizontal catching surface 24. After placing the cap 2 on the tank 1, a bag 25 is inserted into the tank 1 through the inlet opening 11 by winding the upper inlet end of the bag 25 on the circumferential ring 10 and the upper outer surface of the bag 25 abuts the inner surface of the circumferential ring 10. The cover 3 is applied to the cap 2. At the stage of applying the cover 3, the ends of the catch 5 pass through the through cut-outs 26 of the cap 2 and then the overrun surfaces 23 (23a and 23b) of each catch 5, due to the elasticity of the end of the catch 5, compress each other, i.e. approach each other due to the pressure of the lateral surface 27 of the catching head 28 located on the upper inner surface of the tank 1 wall. When the catching surface 24 of the catch 5 is below the lower surface of the catching head 28, the lower part of the catch 5 is expanded and the overrun surfaces 23 (23a and 23b) move away from each other, and the catching surface 24 begins to adhere to the lower surface of the catching head 28. The waste container is assembled, i.e. the tank 1, the cap 2 and the cover 3 are joined together. The waste container is ready to be filled with waste (diapers). In the assembled waste container, the external surface 29 of the drum 6, irrespective of the position of the inlet / outlet opening 8 of the drum 6 chamber 7, presses the upper wall of the bag 25, at the inlet opening of the bag 25, to the inner surface of the circumferential ring 10 of the cap 2.
[0048] When the container is assembled, it is possible to:
[0049] - properly position the drum 6 with the inlet / outlet opening 8 of the chamber 7 upwards (loading waste),
[0050] - properly position the drum 6 with the inlet / outlet opening 8 of the chamber 7 downwards (removal of waste from the chamber 7 into the bag 25 of the tank 1), or
[0051] - provide an intermediate positioning allowing the waste container to be moved using the handle 16 when the handle 16 is configured to it.
[0052] When the bag 25 is filled with waste, the handle 16 rotates to the lowermost position. Then the head 18 (of variable increasing thickness) gradually, increasingly presses on the lever 19 located in the upper part of the catch 5 and the lower part of the catch 5 moves to the internal position (to the centre of the tank 1). The lower part of the catch 5 is displaced and the catching surface 24 of the catch 5 moves from the lower surface of the catching head 28 of the tank 1 to the lower surface of the catching head 28a of the cap 2 located in the cutout 26 of the cap 2. The end of the catch 5 is moved to the inside of the tank 1, and thus the catch 5 is released from the catching head 28 of the tank 1 and it is possible to lift the cover 3 together with the cap 2 with the filled bag 25 pressed between the outer surface 29 of the drum 6 and the inner surface of the circumferential ring 10 of the cap 2. Odours do not come out from the bag. The catching head 28a of the cap 2 has a recess 30 in which there is a catching surface 24 of the catch 5 when the catch 5 is moved towards the inside of the container, i.e. it is located in an internal position, which ensures, regardless of the position of the handle 16, that the cap 2 does not detach from the cover 3 with the drum 6 when the whole assembly, including the filled bag 25, is lifted upwards. Under the cap 2, the user twists the bag 25 by closing its outlet and by pulling out the end of the bag 25 from between the outer surface 29 of the drum 6 and the inner surface of the circumferential ring 10 of the cap 2. After removing the bag 25, the user manually slides the lower part of the catches 5 outwards (to the external setting of the catches 5) by extending the catching surface 24 from the recess 30, which is assisted by the expanding spring 22. The waste container is ready to be reassembled with an empty bag 25.
[0053] Example 2. Waste container with container closing mechanism
[0054] A waste container with a container closing mechanism (in particular for used diapers, but also for other hygienic waste) according to example 1, wherein the lateral surface of the drum 6 has two heads 18, preferably on both sides, the thickness of which increases in the direction opposite to rotation. Then removing the cover 3 with the cap 2 together with the filled bag 25 is possible in the two extreme positions of the handle 16 (as shown in fig. 3, fig. 3c and fig. 3d).
[0055] Example 3. Waste container with container closing mechanism
[0056] A waste container with a container closing mechanism (in particular for used diapers, but also for other hygienic waste) according to example 1 or 2, in which a removable insert 31, preferably roll-shaped without a top surface, is arranged in a chamber 7 of the rotating drum 6. The shape of the insert 31 corresponds to the shape of the chamber 7 of the rotatable drum 6. Removing the insert 31 from the chamber 7 allows it to be effortlessly washed, which makes it easier to keep the interior of the chamber 7 clean. In addition, the insert 31 can be made of metal or a mixture of plastic with silver, therefore it has bactericidal properties. On its lateral outer surface the insert 31 has a catching lock 32a cooperating with the catching lock 32b of the chamber 7 of the drum 6. Wherein one of the catching locks 32a or 32b is convex and the other is respectively concave with respect to the adjacent surface thereof. The catching lock 32a and 32b may be circumferential or punctual. The catching lock 32a of the insert 31 together with the catching lock 32b of the chamber 7 protect the insert 31 against unwanted removal of the insert 31 from the chamber ? of the drum 6 during use of the container.
[0057] Example 4. Waste container with container closing mechanism
[0058] A waste container with a container closing mechanism (in particular for used diapers, but also other hygienic waste) according to example 1 or 2 or 3, which has a rotatable drum 6 made of flexible material, which increases the tightness between the outer surface 29 of the drum 6 and the inner surface of the circumferential ring 10. It is also advantageous to make the cover 3 and the cap 2 of flexible plastic, which further increases the tightness between the outer surface 29 and the surface of the circumferential ring 10 and between the outer surface 29 and the edge of the upper cut-out 9 of the cover 3.
[0059] Example 5. Method of operation of the waste container closing mechanism
[0060] Method of operation of the waste container with the container closing mechanism according to example 1 or 2 or 3 or 4, wherein the successive steps include: a) assembly of the waste container by applying a cap 2 to the top of the tank 1 (as shown in fig. 1 - operation a); b) a bag 25 is inserted into the tank 1 through the inlet opening 11 by winding the inlet end of the bag 25 on the circumferential ring 10, such that the upper outer surface of the bag 25 abuts the inner surface of the circumferential ring 10 (as shown in fig. 1 - operation b and fig. 2); c) through the cap, the cover 3 is attached to the tank 1 by means of catches 5 (as shown in fig. 1 and fig.2 - operation c), wherein each outwardly extending end of the catch 5 slides into the corresponding through cut-out 26 in the cap 2 and in the final stage of applying the cover 3, the overrun surfaces 23 (23a and 23B) of each catch 5, due to the elasticity of the end of the catch 5, compress each other, i.e. come closer to each other, i.e. the lower part of the catch (5) with the lateral overrun surface (23a) approaches the lower part of the catch (5) with the lateral overrun surface (23b) due to the pressure on the overrun surface (23) due to the pressure of the lateral surface 27 of the catching head 28 located on the upper inner surface of the tank 1 wall, then, when the catching surface 24 of the catch 5 is below the lower surface of the catching head 28, the lower part of the catch 5 is expanded and the overrun surfaces 23 (23a and 23b) move away from each other, and the catching surface 24 begins to adhere to the lower surface of the catching head 28, the catches 5 in the tank 1 are blocked, and thus the tank 1 is connected to the cover 3 through the cap 2; d) in the assembled waste container (as shown in fig. 3, fig. 3a, fig. 3b - use of the container) the external surface 29 of the drum 6, irrespective of the position of the inlet / outlet opening 8 of the drum 6 chamber 7, presses the upper wall of the bag 25, at the inlet opening of the bag 25, to the inner surface of the circumferential ring 10 of the cap 2; e) as a result of using the assembled waste container, the bag 25 is filled with waste (as shown in fig. 3a, fig. 3b - use of the container); f) the handle 16 together with the drum 6 is rotated to the extreme lower position, i.e. to the downward resistance (as shown in fig. 3, fig. 3c, fig. 3d - disengagement) and then the head 18 (of variable, increasing thickness) of the drum 6 gradually, increasingly presses on the lever 19 located in the upper part of the catch 5 and as a result of rotation of the catch 5, which is enabled by its hooks 20, the lower part of the catch 5 moves to the internal position (moves to the centre of the tank 1, when previously the outer lower surface of the catch 5 was at the inner wall of the tank 1). The lower part of the catch 5 is displaced and the catching surface 24 of the catch 5 moves to the interior of the tank 1 from the lower surface of the catching head 28 of the tank 1 to the lower surface of the catching head 28a of the cap 2 located in the cut-out 26 of the cap 2 and the catch 5 is released from the catching head 28 of the tank 1. The catching surface 24 of the catch 5 placed in the recess 30 of the lower surface of the catching head 28a of the cap 2 prevents accidental disconnection of the cover 3 from the cap 2 regardless of the handle 16 position (as shown in fig. 4 - operation a); g) the cover 3 connected to the cap 2 and the filled bag 25 pressed in the upper part of the bag 25 at its opening is lifted, with the external surface 29 of the drum 6 to the inner surface of the circumferential ring 10 of the cap 2 (as shown in fig. 4 - operation b); h) under the cap 2, the bag 25 is twisted by closing the opening of the bag 25 (as shown in fig. 4 - operation c) and by pulling out from the inlet opening 11 of the cap 2 the end of the bag 25 from between the outer surface 29 of the drum 6 and the inner surface of the circumferential ring 10 of the cap 2 (as shown in fig. 5 - operation d); i) the lower part of the catches 5 is extended outwards (to the external position) by extending the catching surface 24 of the catches 5 from the recess 30 of the catching head 28a of the cap 2 beyond the catching heads 28a of the cap 2, wherein the extension is assisted by the expanding spring 22 (as shown in fig. 5 - operation e); j) the cap 2 is freely detached from the cover 3.
[0061] Example 6. Method of operation of the waste container closing mechanism
[0062] Method of operation of the waste container with the container closing mechanism as indicated in example 5, wherein at any time of use of the waste container, the insert 31 is introduced into the chamber 7 of the drum 6, and when it is dirty, the insert 31 is pulled out from the chamber 7 of the drum 6, it is cleaned and introduced into the drum 6 from the chamber 7.
[0063] LIST OF REFERENCE SYMBOLS:
[0064] 1. Tank;
[0065] 2. Cap;
[0066] 3. Cover;
[0067] 4. Edge
[0068] 5. Catch;
[0069] 6. Drum;
[0070] 7. Chamber;
[0071] 8. Inlet / outlet opening (of the chamber);
[0072] 9. Upper cut-out (of the cover);
[0073] 10. Circumferential ring (of the cap);
[0074] 11. Inlet opening (of the cap)
[0075] 12. Side cut-out (of the cover);
[0076] 13. Flattening (of the drum);
[0077] 14. Connector (of the drum);
[0078] 15. Protrusion (of the drum);
[0079] 16. Handle;
[0080] 17. Fixing;
[0081] 18. Head;
[0082] 19. Lever;
[0083] 20. Hook (of the catch);
[0084] 21. Spline;
[0085] 22. Spring;
[0086] 23. Overrun surface (of the catch) 23a and 23b;
[0087] 24. Catching surface(of the catch);
[0088] 25. Bag;
[0089] 26. Cut-out (of the cap);
[0090] 27. Lateral surface (of the catching head of the tank);
[0091] 28. Catching head (of the tank);
[0092] 28a Catching head (of the cap);
[0093] 29. Outer surface (of the drum);
[0094] 30. Recess;
[0095] 31. Insert;
[0096] 32. Catching lock;
[0097] 32a. Catching lock (of the insert);
[0098] 32b. Catching lock (of the drum chamber).
Claims
AMENDED CLAIMS received by the International Bureau on March 20, 2026 (20.03.2026) CLAIMS1. A waste container with a container closing mechanism, wherein the container for waste is composed of a tank (1), a cap (2) constituting a detachable part of the tank (1) and a removable cover (3) with a rotating drum (6) located therein containing a waste chamber (7) and a handle (16) connected to the drum (6) enabling the drum (6) to rotate inside the cover (3) and the drum (6) has a chamber (7) with an inlet / outlet opening (8) characterized in that the lateral surface of the drum (6), at the axis of rotation of the drum (6), has a head (18) of variable thickness and the cover (3) has a catch (5) attached to its lower, internal surface, the catch (5) has a lever (19) in its upper part and under the lever (19) there are hooks (20) rotatably connected with the inner splines (21) located on the inside of the cover (3), further the catch(5) has an overrun surface (23) in its lower part and a catching surface (24) in its lower part and the tank (1) has at least one catching head (28) on its inner wall with a lateral surface (27), while the cap (2) has at least one catching head (28a) in each through cut-out (26).2 The waste container with the container closing mechanism according to claim 1, characterised in that each lateral surface of the drum (6) has two heads (18) of variable thickness, wherein the thickness of each head (18) on the same lateral surface of the drum(6) is increased in direction opposite to rotation of the drum (6), i.e., the thickness of one head (18) increases in the direction of the rotation of the drum (6), and the thickness of the other head (18) increases in direction opposite to rotation of the drum (6).3 The waste container with the container closing mechanism according to claim 1 or 2, characterized in that the catch (5) in its lower part has two overrun surfaces (23), i.e. the overrun surface (23a) and the overrun surface (23b).4 The waste container with the container closing mechanism according to claim 1 or 2 or 3, characterized in that the lower part of the catch (5) has elastic properties.5 The waste container with the container closing mechanism, according to anyone of claims 1 to 4, characterized in that the tank (1) has two catching heads (28) on opposite inner walls of the tank (1).
6. The waste container with the container closing mechanism, according to anyone of claims 1 to 5, characterized in that the cap (2) in each through cut-out (26) has two catching heads (28a).
7. The waste container with the container closing mechanism, according to anyone of claims 1 to 6, characterized in that the catching head (28a) has a recess (30).
8. The waste container with the container closing mechanism, according to anyone of claims 1 to 7, characterized in that between the outer surface (29) of the rotatable drum (6) and the inner surface of the circumferential ring (10) there is a lateral surface of the bag (25) at the opening of the bag (25).9 The waste container with the container closing mechanism, according to anyone of claims 1 to 8, characterized in that between the lever (19) of the catch (5) and the inner wall the cover (3) there is a spring (22).10 The waste container with the container closing mechanism, according to anyone of claims 1 to 9, characterized in that the drum (6) is made of flexible plastic or the cover (3) is made of flexible plastic or the cap (2) is made of flexible plastic.11 The waste container with the container closing mechanism, according to anyone of claims 1 to 10, characterized in that there is an insert (31) in the chamber (7) of the rotatable drum (6).12 The waste container with the container closing mechanism according to claim 11, characterized in that the insert (31) has a concave or convex catching lock (32a) on its lateral external surface and the chamber (7) has a convex or concave catching lock (32b) on its inner surface that is either circumferential or punctual, respectively.13 The waste container with the container closing mechanism according to claim 11 or 12, characterized in that the insert (31) is made of metal or plastic that contains silver.14 The method of operation of the container closing mechanism, wherein the waste container is composed of a tank (1), the cap (2) constituting a detachable part of the tank (1) and a detachable cover (3) with a rotating drum (6) located therein containing a waste chamber (7) and a handle (16) connected to the drum (6) enabling the drum (6) to rotate inside the cover (3) and the drum (6) has the chamber (7) with an inlet / outlet opening (8), characterised in that: a) the waste container is assembled by applying the cap (2) to the top of the tank (1);b) a bag (25) is inserted into the tank (1) through an inlet opening (11) by winding the inlet end of the bag (25) on a circumferential ring (10), such that the upper outer surface of the bag (25) abuts the inner surface of the circumferential ring (10); c) through the cap (2), the cover (3) is attached to the tank (1) by means of catches (5), wherein each outwardly extended end of the catch (5) slides into the corresponding cut-out (26) of the cap (2) and in the final stage of applying the cover (3), the lower part of the catch (5) with a lateral overrun surface (23a) approaches the lower part of the catch (5) with a lateral overrun surface (23b) due to the pressure on the overrun surface (23) of a lateral surface (27) of a catching head (28) located on the upper inner surface of the tank (1) wall, then when a catching surface (24) of the catch (5) is below the lower surface of the head (28), the lower part of the catch (5) is expanded and the overrun surface (23a) and the overrun surface (23b) move away from each other, and the catching surface (24) begins to adhere to the lower surface of the catching head (28), the catches (5) are blocked in the tank (1), and thus the tank (1) is connected to the cover (3) through the cap (2); d) in the assembled waste container, an external surface (29) of the drum (6), irrespective of the position of the inlet / outlet opening (8) of the drum (6) chamber (7), presses the upper wall of the bag (25), at the inlet opening of the bag (25), to the inner surface of the circumferential ring (10) of the cap (2); e) as a result of using an assembled waste container, the bag (25) is filled with waste; f) the handle (16) and the drum (6) are rotated to the lowest position, i.e. to the downward resistance and then the head (18) of a variable and gradually increasing thickness progressively presses against the lever (19) located in the upper part of the catch (5) and as a result of the rotation of the catch (5), which is enabled by its hooks (20), the catching surface (24) of the lower part of the catch (5) moves from the side wall of the tank (1) to the inside of the tank (1) from the lower surface of the catching head (28) of the tank (1) to the lower surface of the catching head (28a) of the cap (2) located in the cut-out (26) of the cap (2), and then the catch (5) is released from the catching head (28) of the tank (1), wherein the catching surface (24) of the catch (5) is preferably located in the recess (30) in the lower surface of the catching head (28a) of the cap (2) to prevent accidental disengagement of the cover (3) from the cap (2);g) the cover (3) connected to the cap (2) and the filled bag (25) pressed in the upper part of the bag (25) at its opening is lifted, with the external surface (29) of the drum (6) to the inner surface of the circumferential ring (10) of the cap (2); h) under the cap (2), the bag (25) is twisted by closing the opening of the bag (25) and by pulling the bag (25) the end of the bag (25) is pulled out through the inlet opening (11) of the cap (2) from the space between the outer surface (29) of the drum (6) and the inner surface of the circumferential ring (10) of the cap (2); i) the lower part of the catches (5) slides outwards, i.e. to the external position, extending the catching surface (24) of the catches (5) beyond the catching heads (28a) of the cap (2) and the cap (2) is freely detached from the cover (3).
5. Method of operation of the waste container closing mechanism according to claim 14, characterised in that the extension of the lower part of the catch (5) to the external position is supported by an expanding spring (22) located between the catch (5) lever (19) and the inner surface of the cover (3).
6. Method of operation of the waste container closing mechanism according to claim 14 or 15, characterised in that an insert (31) is extended from the chamber (7) of the drum(6), cleaned and introduced to the chamber (7) of the drum (6).