container lid

Abstract

A container lid has a panel (1) with an opening (2) for emptying the container, on both opposite walls (2a) of which a guide (3, 103) is formed, which is inclined towards the bottom surface (5) of the panel (1), and a slider (8), on the top surface (9) of which a catch (12, 12a, 112, 112a) is formed, which is inclined towards the top surface (9) of the slider, and which has a pulling tab (11), wherein the catch (12, 12a, 112, 112a) is slidingly fitted in the guide (3, 103), characterized in that the pulling tab (11) is formed on the top surface (9) of the slider (8), a recess (7) is formed on the bottom surface (5) of the panel (1) around the opening (2) for emptying the container to accommodate the slider (8), at least one locking element (18) is formed in the recess (7) and at least one locking element (19) is formed on the slider (8), whereby the locking element (18) of the panel (1) and the locking element (19) of the slider (8) cooperate with each other, forming a pair.

Description

Technical Field

[0001] This invention relates to lids for containers, particularly lids for beverage containers. The lid is made of plastic and can be used with containers made of plastic. Background Technology

[0002] A container lid, particularly a beverage can lid, known from patent document WO2010 / 094793A2, includes a reclosing mechanism made of elastic material, which is fully fixed to the bottom side of the lid and partially integrated with the bottom side of the lid in a manner that prevents it from twisting, and has an actuation mechanism that engages with the top side of the lid via an adapter.9.

[0003] A reclosing mechanism for a container, particularly a beverage container, is known from patent document WO2014 / 003586A2. This mechanism includes a means for opening and reclosing a beverage outlet opening in the form of a latch, the latch slidingly engaging in a guide, wherein the latch contacts the bottom surface of a lid surrounding the opening. At the top, the lid is fitted with a sliding pull tab, connected to the latch on one side via a hinge and on the other side via a connector that acts as a seal before the first opening. The lid has corresponding resistance surfaces on the front sides of the hinge and the pull tab, these surfaces defining the initial position of the latch before the first opening.

[0004] A container lid, particularly a beverage container lid, is known from patent document PL 429 610A1. It has an opening for emptying the container, guides formed on two opposing walls, and a slider for opening and reclosing the opening. Two retaining portions are formed on the top surface of the slider, which slidably engage in the opening of the guides. The slider is equipped with means for moving from a closed position to an open position and back. The surface of the retaining portion of the slider engaging with the guides is inclined at an acute angle relative to the top surface of the slider. A slot with a contoured surface for the slider is formed around the opening on the bottom side of the lid to form a seal around its periphery in the slot to seal the slider in the closed position. Summary of the Invention

[0005] According to the circular economy (CE) principle applicable to plastics, efforts should be made to reduce product weight, use reusable materials that can be used for the same purpose, and adopt structural solutions that do not involve detachable components, where all components are made of the same material.

[0006] The invention described in this article solves the problems arising from the principles of the circular economy.

[0007] According to the invention, a container lid has a panel with an opening for emptying the container, wherein guides inclined toward the bottom surface of the panel are formed on two opposing walls of the opening, and further has a slider, wherein a retaining portion inclined toward the top surface of the slider is formed on the top surface of the slider, the top surface of the slider also having a pull tab, wherein the retaining portion slidably engages in the guides, characterized in that the pull tab is formed on the top surface of the slider, and a recess is formed on the bottom surface of the panel around the opening for emptying the container to receive the slider, wherein at least one locking element is formed in the recess, and at least one locking element is formed on the slider, such that the locking element of the panel and the locking element of the slider engage with each other to form a pair.

[0008] Preferably, the bottom surface of the slider is flat, and the bottom surface of the panel is flat at least in the portion surrounding the recess.

[0009] Preferably, a guide is formed on the bottom surface of the slider, and a retaining portion is formed on the bottom surface of the panel, the retaining portion being slidably engaged in the guide.

[0010] The guide formed on the two opposing walls of the opening extends obliquely relative to the bottom surface of the panel, while the retaining portion formed on the top surface of the slider extends obliquely relative to the top surface of the slider, or the guide formed on the two opposing walls of the opening and the retaining portion formed on the top surface of the slider are arched. Preferably, the retaining portion formed on the top surface of the slider is in the form of a segment.

[0011] Preferably, the retaining portion is formed on the opposite sidewall of the pull tab. Preferably, a plastic foil is fixed to a flat portion of the bottom surface of the slider and the bottom surface of the panel, and the plastic foil has perforations at least along the longitudinal edge of the slider.

[0012] Preferably, there are spikes on the bottom surface of the slider along the edge laterally relative to the direction of movement of the slider. Preferably, the locking element of the slider is hollow, while the matching locking element of the recess in the panel is raised.

[0013] Preferably, the panel has at least one opening to ensure airflow, and preferably, the slider has at least one opening to ensure airflow, which cooperates with the opening on the panel.

[0014] Preferably, a groove is formed on the bottom surface of the panel around its peripheral edge, the bottom of which may be flat or have an energy guide, the cross-section of which is preferably triangular; or preferably, the energy guide may be located on the bottom surface of the panel around its peripheral edge, the cross-section of which is preferably triangular. The above-described technical means are applicable to ultrasonic welding of lids and containers.

[0015] Preferably, an outflow lip is formed on the top surface of the panel.

[0016] The lid is made of plastic.

[0017] The solution according to the invention ensures the integrity of its components, reducing the number of parts constituting the lid to two elements: the panel and the slider, thus making it lighter than other known solutions. The contour of the edge of the bottom surface of the panel allows for a non-detachable connection between the lid and the container via ultrasonic welding. The homogeneity of the materials used to manufacture the lid panel and the slider for opening and reclosing the opening for emptying the container, as well as the possibility of achieving a non-detachable connection between the lid and the container made of the same material as the lid, facilitates recycling and avoids threaded connections. Furthermore, due to the elimination of friction between the slider and the panel, the opening for emptying the container can be opened and closed in a single action using the force of a single finger. The use of locking elements in the form of hollow and raised parts, which cooperate with each other when opening and reclosing the opening for emptying the container, ensures that the slider resists unwanted movement and ensures a tight reclosure of the opening for emptying the container.

[0018] In addition, the lid's structure allows for the use of foil as a material to seal the opening of the empty container. Attached Figure Description

[0019] These and other features of the invention will become apparent from the following description of preferred embodiments with reference to the accompanying drawings, which are described as non-limiting examples, wherein:

[0020] Figure 1 The 3D view at the top shows the lid with an opening for emptying the container in the closed position;

[0021] Figure 2 The 3D view at the top shows the lid with an opening for emptying the container in the open position;

[0022] Figure 3 The bottom view depicts the lid with an opening for emptying the container in the closed position;

[0023] Figure 3A The bottom view shows the lid with an opening for emptying the container in the closed position, with the plastic foil secured in place.

[0024] Figure 4 The bottom view shows the lid with an opening for emptying the container in the open position;

[0025] Figure 5A lid with an opening for emptying the container is depicted in the closed position in the longitudinal section of the guide.

[0026] Figure 6 A lid with an opening for emptying the container is shown in the longitudinal section of the guide in the open position;

[0027] Figure 7 A lid with an opening for emptying the container is depicted in the closed position in a longitudinal section between the guides;

[0028] Figure 8 A lid with an opening for emptying the container is shown in the open position in a longitudinal section between the guides;

[0029] Figures 8A to 8D As shown Figure 8 The lid has various contour variations along its edges;

[0030] Figure 9 The cross-section of the guide shows the lid in the closed position with an opening for emptying the container;

[0031] Figure 10 A lid with an opening for emptying the container is depicted in the open position in the cross-section of the guide;

[0032] Figure 11 The slider is shown in the 3D view at the top;

[0033] Figure 12 The slider is shown in the top view;

[0034] Figure 13 The slider is depicted in the side view;

[0035] Figure 14 The slider is shown in the bottom view;

[0036] Figure 15 The panel is depicted in the 3D view at the top;

[0037] Figure 16 The panel is shown in the top view;

[0038] Figure 17 The panel is displayed in the bottom view;

[0039] Figure 18 A slider with a segmented, inclined retaining part is depicted in the 3D view;

[0040] Figure 19 The panel with arched retaining parts is shown in the 3D view;

[0041] Figure 20 The slider with an arched retaining part is depicted in the 3D view;

[0042] Figure 21 In such Figure 19 The cross-section of the guide shows a lid with an open opening for emptying the container;

[0043] Figure 22 The 3D view shows a slider with an arched section for holding the component;

[0044] Figure 23 The 3D view at the bottom shows a lid with additional guides and a retainer, which has an opening in the closed position for emptying the container;

[0045] Figure 24 The 3D view at the bottom shows a lid with additional guides and a retainer, which has an opening in the open position for emptying the container;

[0046] Figure 25 The panel with the retaining part is depicted in the bottom view;

[0047] Figure 26 The slider with guides is shown in the bottom view. Detailed Implementation

[0048] exist Figures 1 to 17 In the illustrated embodiment of the invention, the lid of the container, particularly a container designed for beverages, has a panel 1 with an opening 2 for emptying the container, and a slider 8 for opening and closing the opening 2. On opposing longitudinal walls 2a, obliquely intersecting with the bottom surface 5 of the panel 1, guides 3 are formed that slope towards the bottom surface of the panel 1. On the top surface 4 of the panel 1, along the lateral edge 2b of the opening 2, an outlet lip 6 is formed. The bottom surface 5 of the panel 1 is flat around the opening for emptying the container, and this flat portion is provided with a recess 7 to accommodate the slider 8. Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 8A , Figure 8B , Figure 8C , Figure 8D , Figure 9A protruding pull tab 11 is formed on the top surface 9 of the slider 8. On the opposite sidewall 11a of the pull tab, a retaining portion 12, obliquely intersecting the top surface 9 of the slider 8, is formed towards the top surface 9 of the slider. The bottom surface 10 of the slider 8 is flat. The slider 8 is located in the recess 7, and the retaining portion 12 slidably engages with the guide 3. A hollow locking element 19 is formed on the top surface 9 of the slider 8, while a corresponding protruding locking element 18 is formed in the recess 7 of the panel 1. When the slider 8 is actuated, this locking element engages with the hollow portion. Figure 11 , Figure 12 As shown, four hollow portions 19 are formed on the top surface of the slider 8, and... Figure 17 The diagram shows four protrusions 18 correspondingly formed in the recess 7 on the bottom surface of panel 1. The hollow portion and the protrusions are paired and matched, stabilizing the slider 8 in the closed and open positions, respectively, ensuring that the slider 8 resists unwanted movement. To supply air to the container when it is emptied, panel 1 and slider 8 may have, for example, two pairs of openings 13, 14. In the initial position, when the opening 2 for emptying the container is closed, opening 13 in panel 1 is blocked by slider 8; while when the opening 2 for emptying the container is open, opening 13 in panel 1 overlaps with opening 14 in slider 8, forming an air inlet to the container when it is emptied.

[0049] In one embodiment, when the opening 2 is closed by the slider 8, the bottom surface 10 of the slider may lie in the plane defined by the bottom plane 5 of the panel 1 surrounding the opening 2. Then, as an additional element, a plastic foil 16 can be attached to both surfaces 5 and 10 to seal the opening 2 for emptying the container. The plastic foil 16 has perforations 17 along the longitudinal edge of the bottom of the slider 8 and along the transverse edge, such as... Figure 3A As shown. In this case, spikes 15 may be formed on the slider 8, on the bottom surface, on an edge that is transverse to the direction of its movement relative to the slider 8. This helps to break the foil along the perforation 17, as shown. Figure 3 As shown.

[0050] In another Figures 23 to 26 In the illustrated embodiment, no foil is fixed to the cover, but a guide 23 is formed on the bottom surface 10 of the slider 8, and a retaining portion 22 that slidably engages with the guide 23 is formed on the bottom surface 5 of the panel 1. The guide 23 and the retaining portion 22 stabilize the movement of the slider 8.

[0051] In another embodiment, the cover differs from the cover described in the first embodiment, in that the retaining portion formed on the top surface 9 of the slider 8 has the form of a segment 12a, such as... Figure 18 As shown.

[0052] In yet another embodiment, the lid differs from the lid described in the first embodiment; the guide 103 and the retaining portion 112 are arc-shaped, such as... Figure 19 , Figure 20 and Figure 21 As shown, the holding part can take the form of segment 112a, such as Figure 22 As shown.

[0053] In all the above embodiments, a groove 20 may be formed on the bottom surface 5 of the panel 1, around its peripheral edge. This groove is used to non-detachably connect the lid and the container by ultrasonic welding. The bottom 20a of the groove 20 may be flat, such as... Figure 8A As shown, or possibly having a shaped energy guide 21 on top, preferably with a triangular cross-section, such as Figure 8B As shown, it is suitable for ultrasonic welding. In another embodiment, an energy guide 21 is formed around the periphery of the bottom surface 5 of the panel 1, preferably with a triangular cross-section, as shown. Figure 8C and Figure 8D As shown, it is suitable for ultrasonic welding.

[0054] The lid described can be made of the same plastic.

[0055] To open the opening 2 for emptying the container, the slider 8 can be slid by pulling the tab 11. The slider 8 moves downwards relative to the panel 1, eliminating friction between the top surface 9 of the slider 8 and the bottom surface 5 of the panel 1. If a foil 16 is fixed between the bottom surface 5 of the panel 1 and the bottom surface 10 of the slider 8, the movement of the slider 8 will cause the sealing foil 16 to break along the perforation 17. Between the perforations, the foil 16 remains fixed to the bottom surface 10 of the slider 8, while the remaining portion of the foil 16 remains fixed to the bottom surface 5 of the panel 1. When the opening 2 for emptying the container is opened, the opening 13 in the panel 1 overlaps with the opening 14 in the slider 8, thus forming a channel for supplying air to the container, and the corresponding two locking protrusions 18 on the panel 1 are located in the corresponding two locking hollow portions 19 of the slider 8, as shown. Figure 4 As shown, this ensures that the slider resists unwanted movement. The opening 2 can be closed again by using the pull tab 11 to switch the slider 8 back to its original position. In this case, the opening 13 on the panel 1 is blocked by the slider 8, and the corresponding two locking protrusions 18 of the panel 1 are located in the two corresponding locking hollow portions 19 of the slider 8, as shown. Figure 3 As shown, this ensures that the slider resists unwanted movement.

[0056] List of digital reference symbols

[0057] 1-panel

[0058] 2- Opening for emptying the container

[0059] 2a-Longitudinal wall of the opening

[0060] 2b - Lateral edge of the opening

[0061] 3,103 - Guide

[0062] 4-Top surface of the panel

[0063] 5- Bottom surface of the panel

[0064] 6-Flowing lips

[0065] 7- Recess on the slider

[0066] 8-Slider

[0067] 9-Top surface of the slider

[0068] 10- Bottom surface of the slider

[0069] 11 – Pull the tab

[0070] 11a - The opposite sidewalls of the pulling tab

[0071] 12,12a,112,112a – Card Holder

[0072] 13- Openings in the panel to ensure airflow

[0073] 14- Openings in sliding components to ensure airflow

[0074] 15- Spikes on sliding parts

[0075] 16 – Foil

[0076] 17 – Perforation of foil

[0077] 18- Locking element of the panel

[0078] 19-Locking element of the slider

[0079] 20-slot

[0080] 20a-bottom of the groove

[0081] 21-Energy Director

[0082] 22- Retaining part on the bottom surface of the panel

[0083] 23-Guide on the bottom surface of the slider

Claims

1. A container lid having a panel (1) with an opening (2) for emptying the container, guide elements (3, 103) inclined towards the bottom surface (5) of the panel (1) are formed on both opposite walls (2a) of the opening (2), the container lid further having a slider (8) with a top surface (9) on which a catch (12, 12a, 112, 112a) inclined towards the top surface (9) of the slider is formed, the top surface further having a pull tab (11), wherein the catch (12, 12a, 112, 112a) is slidably fitted in the guide elements (3, 103), characterized in that The pull tab (11) is formed on the top surface (9) of the slider (8), and a recess (7) for receiving the slider (8) is formed on the bottom surface (5) of the panel (1) around the opening (2) for emptying the container. At least one locking element (18) is formed in the recess (7) and at least one locking element (19) is formed on the slider (8). Thus, the locking element (18) of the panel (1) and the locking element (19) of the slider (8) cooperate with each other to form a pair.

2. The lid of claim 1, wherein The bottom surface (10) of the slider is flat, and the bottom surface (5) of the panel (1) is flat at least in the portion surrounding the recess (7).

3. The lid according to claim 1, characterized in that, A guide (23) is formed on the bottom surface (10) of the slider (8), and a retaining part (22) is formed on the bottom surface (5) of the panel (1), the retaining part being slidably engaged in the guide (23).

4. The lid according to any one of claims 1 to 3, characterized in that, The guide (3) formed on the two opposing walls (2a) in the opening (2) extends obliquely relative to the bottom surface (5) of the panel (1), and the retaining portion (12, 12a) formed on the top surface (9) of the slider (8) extends obliquely relative to the top surface (9) of the slider (8).

5. The lid according to any one of claims 1 to 3, characterized in that, The guide (103) formed on the two opposing walls (2a) in the opening (2) and the retaining portion (112, 112a) formed on the top surface (9) of the slider (8) are both arched.

6. The lid according to any one of claims 1 to 3, characterized in that, The retaining portion formed on the top surface (9) of the slider (8) is in the form of segments (12a, 112a).

7. The lid according to any one of claims 1 to 3, characterized in that, The retaining portions (12, 12a, 112, 112a) on the top surface (9) of the slider (8) are formed on the opposite sidewall of the pull tab (11).

8. The lid according to claim 2, characterized in that, A plastic foil (16) is fixed to the bottom surface (10) of the slider (8) and the flat portion of the bottom surface (5) of the panel (1) surrounding the recess (7), and the plastic foil has perforations (17) at least along the longitudinal edge of the slider (8).

9. The lid according to claim 8, characterized in that, On the bottom surface (10) of the slider, there are spikes (15) along the edge laterally relative to the direction of movement of the slider (8).

10. The lid according to any one of claims 1 to 3, characterized in that, The locking element (19) of the slider (8) is hollow, and the matching locking element (18) of the recess (7) in the panel (1) is protruding.

11. The lid according to any one of claims 1 to 3, characterized in that, The panel (1) has at least one opening (13) to ensure air circulation.

12. The lid according to claim 11, characterized in that, The slider (8) has at least one opening (14) to ensure airflow, which cooperates with the opening (13) in the panel (1) to ensure airflow.

13. The lid according to any one of claims 1 to 3, characterized in that, A groove (20) is formed around the periphery of the bottom surface (5) of the panel (1).

14. The lid according to claim 13, characterized in that, The bottom (20a) of the groove (20) is flat.

15. The lid according to claim 13, characterized in that, An energy guide (21) is formed on the bottom (20a) of the groove (20).

16. The lid according to any one of claims 1 to 3, characterized in that, An energy guide (21) is formed around the periphery of the bottom surface (5) of the panel (1).

17. The lid according to any one of claims 1 to 3, characterized in that, An outflow lip (6) is formed on the top surface (4) of the panel (1).

18. The lid according to claim 15, characterized in that, The cross-section of the energy guide (21) is triangular.

19. The lid according to claim 16, characterized in that, The cross-section of the energy guide (21) is triangular.

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