Lightweight full open cover with safety edge

Abstract

The utility model provides a kind of lightweight full open cover with safety edge, including cover and pull ring, the cover is annularly provided with scribe along cover edge, the opening end of the pull ring is opposite the scribe, the scribe wrapping area is pull cover area, the cover surface of the cover is formed with protruding portion by being upwardly protruding in the outer circumferential circle of the scribe, the inner end side of the protruding portion is structured with safety folding edge, the safety folding edge is spaced apart from the scribe in axial direction, and the projection diameter of the end of the safety folding edge on cover surface is less than the diameter of the scribe. Further make the cutout after opening be covered by safety folding edge, further avoid user and it contact, reduce security risk, the thickness of cover is lower, material consumption is less, more lightweight, at the same time, by the structure of cover surface is strengthened, so that cover surface satisfies the balance of thinning and strength keeping, to achieve the dual effect of lightweight and safety.

Description

Technical Field

[0001] This utility model relates to the field of aluminum can technology, and more specifically, to a lightweight, fully openable lid with a safety edge. Background Technology

[0002] Aluminum cans are a common form of beverage packaging, typically made of aluminum. Currently, aluminum cans all use a pull-tab opening mechanism, with partial or full-opening lids. In the full-opening type, the lid is torn off along the etched lines in the middle. However, the break after tearing along the etched lines is relatively sharp and close to the can opening, which can easily injure the user upon contact.

[0003] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content

[0004] This invention provides a lightweight, fully openable cover with a safety edge, designed to improve at least one of the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, this utility model provides a lightweight fully open lid with a safety edge, including a lid body and a pull ring. The lid body has a circumferential groove along the edge of the lid surface. The opening end of the pull ring faces the groove. The area covered by the groove is the lid opening area. The lid surface of the lid body has a raised portion that protrudes upward around the outer periphery of the groove. A safety fold is constructed on the inner end of the raised portion. The safety fold is spaced apart from the groove in the axial direction, and the projection diameter of the end of the safety fold on the lid surface is smaller than the diameter of the groove.

[0006] As a further optimization, the end of the safety fold is set in an arc shape.

[0007] As a further optimization, the distance between the projection of the end of the safety fold on the cover surface and the engraved line is greater than 0 and less than or equal to 0.5 mm.

[0008] As a further optimization, the outer periphery of the cover extends outward to form an extension portion, and the outer end of the extension portion is provided with a rolled edge.

[0009] As a further optimization, a recess is constructed between the extension and the protrusion.

[0010] As a further optimization, a first reinforcing part is provided in the cover area, which is formed by the cover surface protruding from bottom to top.

[0011] As a further optimization, a groove is formed between the protrusion and the first reinforcing part.

[0012] As a further optimization, a second reinforcing part is provided in the pull-out area, and the second reinforcing part is arranged in a ring shape.

[0013] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0014] 1. By setting a protrusion at the edge of the etched line on the torn lid, combined with a safety fold, the cut after opening is covered by the safety fold, thereby preventing the user from coming into contact with it and reducing safety risks;

[0015] 2. The structure of the lid is optimized by adding recesses and extensions to improve the structural strength of the lid. This allows the thickness of the aluminum material to be reduced while still meeting the internal pressure resistance requirements of carbonated beverages.

[0016] 3. By further adding a reinforcing part in the pull ring area, a balance is achieved between reducing the thickness of the cap material and maintaining its strength, thereby achieving the dual effects of lightweighting and safety. At the same time, it can reduce the offset of the engraving line towards the center due to internal pressure after filling to a certain extent. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional structural diagram of a lightweight fully openable cover with a safety edge according to Embodiment 1 of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This is a schematic diagram of a lightweight, fully openable cover with a safety edge in Embodiment 1 of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of a lightweight, fully openable cover with a safety edge in Embodiment 2 of this utility model.

[0022] The markings in the diagram are: 1. Cover; 2. Pull ring; 3. Score; 4. Pull-out area; 5. Protrusion; 6. Safety fold; 7. Extension; 8. Recess; 9. First reinforcement; 10. Groove; 11. Second reinforcement. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] Depend on Figures 1 to 3 As shown, this utility model embodiment provides a lightweight fully open lid with a safety edge, including a lid body 1 and a pull ring 2. The lid body 1 has a ring-shaped engraving line 3 along the edge of the lid surface. The opening end of the pull ring 2 is directly opposite the engraving line 3. The area covered by the engraving line 3 is the lid opening area 4. Opening the lid opening area 4 by the pull ring 2 in conjunction with the engraving line 3 is the prior art, which will not be described in detail here. Preferably, the cover surface of the cover 1 has a raised portion 5 that protrudes upward around the outer periphery of the engraving line 3. The inner end of the raised portion 5 near the engraving line 3 is bent towards the center to form a safety fold 6. The safety fold 6 is spaced apart from the engraving line 3 in the axial direction, and the projection diameter of the end of the safety fold 6 on the cover surface from the center point is smaller than the diameter of the engraving line 3 from the center point. Thus, when the user opens the cover, the sharp cut generated when the pull-out area 4 separates from the cover 1 will be hidden under the safety fold 6 and blocked by it, so that the user is not easily scratched when opening the cover. In addition, since there is a gap between the safety fold 6 and the engraving line 3, the pull-out area 4 has enough space to bend and deform when opening the cover, so that it can be easily removed.

[0026] Preferably, the end of the safety fold 6 is arc-shaped, which further increases the user's comfort when contacting the safety fold 6 and improves the safety effect. Specifically, in this embodiment, the gap between the safety fold 6 and the cover gradually decreases from the end toward the protrusion 5.

[0027] The distance a between the projection of the end of the safety folded edge 6 on the cover surface and the engraved line 3 is greater than 0 and less than or equal to 0.5 mm. In a preferred embodiment, the distance is set to 0.4 mm, which can both cover the cut edge and facilitate opening the cover.

[0028] Preferably, the outer periphery of the cover 1 extends outward to form an extension 7, and the outer end of the extension 7 is rolled. The extension 7 and the rolled edge enhance the pressure resistance of the cover 1 against the pressure generated inside the can. Furthermore, during production, the cover surface can be designed to be thinner, thereby reducing the amount of aluminum sheet required for the cover 1. Considering the large annual production volume, even a slight reduction can significantly improve efficiency. In one embodiment, the cover 1 can be set to 0.218 mm.

[0029] Furthermore, a recessed portion 8 is constructed between the extension 7 and the protrusion 5. The recessed portion 8 serves as both the connection between the extension 7 and the protrusion 5 on the lid and the connection between the lid 1 and the can. At the same time, the recessed portion 8 further enhances the strength of the lid 1, enabling it to remain stable in the event of a drop.

[0030] Preferably, a first reinforcing part 9 is provided within the lid opening area 4. In this embodiment, the first reinforcing part 9 is constructed as a circular convex surface formed by stamping the lid body 1 from bottom to top inside the engraving line 3. Because the can bulges outward due to internal pressure after being filled with carbonated beverages, this internal pressure causes displacement of the engraving area on the lid surface and shifts it towards the center, weakening the protective effect of the safety fold 6. To improve the lid surface's resistance to deformation, an upward stamping structure is adopted, and the resulting first reinforcing part 9 has a reinforcing effect, thereby reducing the deformation of the engraving line 3 and thus improving the protective effect of the safety fold 6.

[0031] Furthermore, due to the formation of the first reinforcing part 9, a groove 10 is formed between the protrusion 5 and the first reinforcing part 9. The groove 10 is axially lower than the cover area where the pull ring is located. As a result, when opening the cover, the part of the hand that contacts the pull ring 2 will be far away from or less likely to come into contact with the vicinity of the engraving line 3, thereby avoiding being cut by the cut during the opening process and improving the safety effect.

[0032] Example 2

[0033] like Figure 4 As shown, the difference between this embodiment and the previous embodiment is that, in this embodiment, a second reinforcing part 11 is provided in the lid-opening area. The second reinforcing part 11 is constructed as an annular groove formed by pressing the lid body 1 from top to bottom inside the engraving line 3. In this way, the strength of the lid surface is strengthened, and to a certain extent, the engraving line 3 is reduced from shifting towards the center due to the influence of internal pressure after canning.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight, fully openable lid with a safety edge, comprising a lid body and a pull ring, wherein the lid body has a ring-shaped engraving along its edge, the opening end of the pull ring faces the engraving, and the area covered by the engraving is the pull-out area, characterized in that, The cover surface of the cover body has a raised portion that protrudes upward around the outer periphery of the engraved line. A safety fold is constructed on the inner end side of the raised portion. The safety fold is spaced apart from the engraved line in the axial direction, and the projected diameter of the end of the safety fold on the cover surface is smaller than the diameter of the engraved line.

2. A lightweight, fully openable cap with a safety edge according to claim 1, characterized in that... The end of the safety fold is arc-shaped.

3. A lightweight, fully openable cap with a safety edge according to claim 1, characterized in that... The distance between the projection of the end of the safety fold on the cover surface and the engraved line is greater than 0 and less than or equal to 0.5 mm.

4. A lightweight, fully openable cap with a safety edge according to claim 1, characterized in that... The outer periphery of the cover extends outward to form an extension portion, and the outer end of the extension portion is rolled.

5. A lightweight, fully openable lid with a safety edge according to claim 4, characterized in that... A recess is formed between the extension and the protrusion.

6. A lightweight, fully openable cap with a safety edge according to claim 1, characterized in that... The pull-out area is provided with a first reinforcing part, which is formed by the cover surface protruding from bottom to top.

7. A lightweight, fully openable lid with a safety edge according to claim 6, characterized in that... A groove is formed between the protrusion and the first reinforcing part.

8. A lightweight, fully openable cap with a safety edge according to claim 1, characterized in that... A second reinforcing part is provided in the pull-out area, and the second reinforcing part is arranged in a ring.

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