Aluminum full-open type with safety edge and easy-open end

Abstract

To provide an aluminum full-open type easy-open end with a safety protection edge that protects a circular opening on a lid surface and prevents a user from being cut when drinking directly from the container. [Solution] The aluminum full-open type easy-open end includes a can lid body 2, a safety protection rim, a lid surface 1, an annular pressure groove, a circular tab 4, and a push-down full-open pull tab 3. When force is applied to the push-down full-open pull tab, the easy-open score line is broken, the tab moves along the score line relative to the lid surface, and the lid surface and the lid body are finally separated. In this device, two opposite annular grooves are crimped and formed, so that the annular diameter of the top of the first-stage annular groove is smaller than the diameter of the annular score line. In addition, the annular score line 12 on the lid surface is disposed adjacent to the flat portion of the first-stage annular groove.

Description

[Technical field]

[0001] This utility model relates to the technical field of metal easy-open cans for carbonated beverages, and in particular to an aluminum full-open type easy-open end can with a safety protection edge. [Background technology]

[0002] Easy-open-end cans first appeared more than half a century ago and have since become widespread and used around the world due to their light weight, small size, and environmentally friendly, recyclable materials. They are still widely used today as packaging for beverage cans and beer cans.

[0003] In recent years, the needs for beverage packaging in emerging markets have been changing rapidly as consumers have become younger. To meet market demands for differentiation, individuality, and improved convenience, there is a demand for the development of easy-open-end packaging that meets these needs.

[0004] Conventional two-piece cans have high internal pressure due to the nature of carbonated beverages, and so the easy-open end is required to withstand this pressure. For this reason, the opening is designed to be small so that the drink can be drunk directly or poured into a cup. However, the current easy-open end is inconvenient for drinking directly, and there are issues with convenience and cost. Summary of the Invention

[0005] The present utility model aims to solve the above-mentioned technical problems. The technical solution of this utility model provides an aluminum full-open type easy-open end with a safety edge. The product includes a sealing end, a safety edge, an end surface, an annular pressure-boosting groove, a circular tab, and a push-down full-open pull tab. The pull tab breaks the indentation and separates the end surface by pulling up the tab.

[0006] Preferred embodiment: Sealing end: This includes the sealing area along the arc line of the can body, and has a structure that is continuous with the first-stage double seaming section, the second-stage seaming section, the annular pressure-increasing groove, and the circular corner of the end face. This structure improves pressure resistance. Safety protection edge: A first annular convex groove is provided adjacent to the circular corner of the end surface, and a second annular concave groove is provided on the outside of the first annular groove in the opposite direction. It forms an "S" shaped curved surface to prevent injury from indentations. Reinforced rib: Placed inside the circular tab on the end face to improve stability when the tab is opened. Anti-slip point: A protrusion is placed at the finger hole position of the pull tab to prevent the tab from rotating or slipping. Auxiliary engraved lines: Equally spaced swallowtail-shaped engraved lines are provided on the bottom of the pull tab to make it easier to open. Circular tab: Placed at the junction of the second annular groove and the end face, designed to be peeled off reliably along the engraved mark when opening. Depression-type full-open pull tab: Rivet-fixed to the end face, with a concave opening pressure area that enhances the lever action.

[0007] Compared with the prior art, the advantages and effects of this utility model: Improved safety: By molding a two-stage annular groove, sharp edges are prevented from being exposed when the bottle is opened, ensuring safety when drinking. 1. Improved convenience: The can can be fully opened, eliminating the need to pour into a cup and allowing the drink to be consumed directly. This is particularly suitable for drinks containing fruit pulp. 2. Improved pressure resistance: The annular pressure-boosting groove design improves pressure resistance and prevents deformation and leakage of the can due to the carbonation pressure of the beverage. 3. Material reduction: The material thickness can be reduced while maintaining a high pressure resistance design, contributing to cost reduction. 4. Stable opening operation: The combination of reinforcing ribs, auxiliary engravings, and anti-slip points allows for smooth opening. [Brief description of the drawings]

[0008] [Figure 1] Planar structural diagram of this utility model. [Diagram 2] Cross-sectional structure diagram of this utility model.

[0009] 1. End surface 2.Can Sealing End 3. Push-down full-open pull tab 4.Circular Tab 5. Reinforced ribs 6. Annular pressure booster groove 7. Safety edge 8. First stage double seaming section 9. Second stage winding section 10. First stage annular groove 11. Second stage annular groove 12. Circular indentation line 13. Anti-slip points 14.Can sealing area 15. End face corner 16. Auxiliary inscription lines 17. Rivet 18. Opening pressure section

[0010] Specific implementation methods: In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described with reference to the following figures and examples. It should be noted that, unless otherwise specifically contradictory, the features of each embodiment and embodiment of the present application can be combined with each other.

[0011] In the following description, many specific details are set forth to provide a thorough understanding of the present invention; however, the present invention may be practiced in ways other than those described herein, and therefore the present invention is not limited to the specific embodiments of the description set forth below.

[0012] Example 1 Referring to Figures 1 and 2, this utility model provides the following technical solutions:

[0013] "Aluminium full-opening easy-open end with safety edge" and includes the following components: Can lid body (2) Safety Edges(7) Lid surface (1) Circular pressure groove (6) Circular tabs (4) Push-down full-open pull tab (3)

[0014] When a force is applied to the push-down full-open pull tab (3), it breaks the score line, causing the tab to move along the score line against the lid surface (1), and ultimately separating the lid surface (1) from the can lid body (2).

[0015] The can lid body (2) includes a can sealing area (14) that overlaps with the arc line of the beverage can body. The curl wall (8) of the first stage double seam adjacent to the can sealing area (14). The second curled wall (9) is connected to the first curled wall by a circular arc. An annular pressure groove (6) adjacent to the second stage curl wall (9). A corner of the cover surface (1) adjacent to the annular pressure groove (6) and extending to the edge of the cover surface (1). This design improves the pressure resistance of the can lid.

[0016] The safety edge (7) includes: A first annular convex groove adjacent to the corner of the cover surface (1). A second stage annular groove adjacent to the first stage annular groove. A cover surface (1) adjacent to the second stage reverse annular groove. The “S” curved surface formed by the first stage annular convex groove and the second stage inverted annular concave groove is radially compressed to provide a safety protection function and prevent the risk of cuts caused by the annular score line (12).

[0017] Detailed structure With reference to Figures 1 and 2: The reinforcing rib (5) on the cover surface (1) is adjacent to the inner region of the circular tab (4) and has a semicircular recessed groove arranged therein, except around the pull tab (3). Both ends of the annular pressure groove (6) extend upward, One end is connected to the second stage curl wall (9). The other end is connected to the corner of the lid surface (1).

[0018] The corners of the cover surface (1) are Connected to one end of the annular pressure groove (6), The other end is connected to the end of the cover surface (1).

[0019] The semicircular groove design improves the stability and reliability of the circular tab (4) when opening.

[0020] The cover surface (1) is provided with anti-slip pins (13), Located at the finger hole position of the push-down full-open pull tab (3), It has a shape similar to that of a finger hole. This has the effect of preventing the pull tab (3) from rotating and becoming misaligned.

[0021] The flap surface (1) has an auxiliary opening score line (16), It consists of evenly spaced swallowtail score lines. Located at the bottom of the pull tab (3), It is located near the pull tab rivet (17). The rivet (17) is arranged symmetrically with the annular score line (12) at the center. The score lines (16) and rivets (17) make it easy to open the cover (1). A circular tab (4) is located at the intersection of the second stage opposing annular groove (11) and the lid surface (1). An annular score line (12) is punched out, but part of it connects the lid surface (1) and the circular tab (4). The circular tab (4) can be easily opened by tearing along the annular score line (12). The push-down pull tab (3) is joined to the cover surface (1) by a rivet (17), Uses a special pull tab format for full-open lid. finger hole, Rivet holes, It has pressure points (18) that provide increased leverage when opening.

[0022] Operating principle Convenience after full opening Particularly suitable for carbonated drinks and drinks with fruit pulp. You can drink it as is without transferring it to another cup. Effect of safety edge (7) Improved strength and stability of the lid surface (1). The use of an annular pressure groove (6) improves pressure resistance, Prevents deformation and leakage. Resource saving design It is possible to reduce material usage by making the material thinner while still ensuring pressure resistance inside the can.

[0023] Opening Process 1. Pull the pull tab (3) upwards. 2. Using the rivet (17) as a fulcrum, break the annular score line (12) at the pressure point (18). 3. The auxiliary opening score line (16) is also torn at the same time. 4. The circular tab (4) moves along the score line (12) and finally separates completely, and the lid opens fully.

[0024] The above content is only one of the best embodiments of the present utility model, and does not limit the present utility model to other forms. Those skilled in the art can make modifications and improvements based on the technical content disclosed above, and apply the present utility model to other fields as an embodiment with equivalent changes. However, as long as it does not deviate from the technical content of the present utility model, any simple modifications, equivalent changes, and improvements to the above embodiment based on the technical essence of the present utility model are included in the protection scope of the technical solution of the present utility model.

Claims

1. The aluminum full-open type easy-open end is equipped with a safety protection edge and is characterized by including a can closure lid body (2), a safety protection edge (7), a lid surface (1), an annular pressure groove (6), a circular tab (4), and a push-down type full-open pull tab (3). By applying force to the push-down type full-open pull tab (3), the easy-open scoring line is broken, the tab is moved along the scoring line toward the lid surface (1), and finally the lid surface (1) and the lid body are separated.

2. The aluminum full-open type easy-open end according to claim 1, wherein the can closure lid body (2) includes a can closure area (14) that coincides with an arc line of the beverage can body, a first-stage double-seam flange wall (8) adjacent to the can closure area (14), a second-stage flange wall (9) connected to the first-stage flange wall by an arc, an annular pressurizing groove (6) adjacent to the second-stage flange wall (9), and an arc portion of the cover surface (1) adjacent to the annular pressurizing groove (6) and toward an end of the cover surface (1).

3. The aluminum full-opening easy-open end as described in claim 1, wherein the safety protective edge (7) is composed of a first-stage annular convex groove adjacent to the arc portion of the cover surface (1), a second-stage opposite annular groove adjacent to the first-stage annular convex groove, and the cover surface (1) adjacent to the second-stage opposite annular groove.

4. The reinforcing rib (5) on the cover surface (1) is adjacent to the area inside the score line of the circular tab (4), and an annular semicircular groove is formed in all parts except the vicinity of the push-down full-open pull tab (3). The annular pressure groove (6) extends upward at both left and right ends, one end is connected to the second flange wall (9), and the other end is connected to the arc portion of the cover surface (1). The aluminum full-open easy-open end according to claim 1, wherein the annular pressure groove (6) extends upward at both left and right ends, one end is connected to the second flange wall (9), and the other end is connected to the end of the cover surface (1).

5. The aluminum full-opening easy-open end of claim 1, wherein an upwardly protruding anti-slip point (13) is arranged on the cover surface (1), and this anti-slip point (13) is provided at the finger hole position of the push-down full-open pull tab (3) and is similar in shape to the finger hole.

6. The aluminum full-opening easy-open end according to claim 1, wherein an auxiliary opening score line (16) is arranged on the cover surface (1), and the auxiliary opening score line (16) is composed of two equidistant swallow-tailed score lines formed by pressing, and remains partially connected to the cover surface (1) even after pressing. The auxiliary opening score line (16) is located at the bottom of the push-down full-opening pull tab (3), arranged near the pull tab rivet (17), and arranged in an anti-symmetrical shape to the annular score line (12) centered on the pull tab rivet (17).

7. The aluminum full-opening easy-open end of claim 1, wherein the circular tab (4) is a part of the cover surface (1) located inside the annular score line (12) at the connection portion between the second-stage reverse annular groove (11) and the cover surface (1). The annular score line (12) is formed by pressing, but is designed so that a partial connection remains between the cover surface (1) and the circular tab (4).

8. The push-down full-open pull tab (3) is riveted to a pull tab rivet (17) provided on the cover surface (1) and is a push-down pull tab exclusively for full-open ends. The push-down full-open pull tab (3) includes a finger hole for opening the pull tab and a pull tab rivet hole for riveting the pull tab to the cover surface (1).

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