A resealable easy-open lid

Abstract

A resealable easy-open lid, characterized in that: it is composed of a lid body (1) and a pull ring (2) riveted to the lid body; the rear end of the pull ring (2) is composed of an outer annular body (22) and an inner pull ring tongue piece (23); an arched deformation area (231) is provided on the edge of the pull ring tongue piece (23), and the shape and size of the arched deformation area (231) correspond to the shape and size of the opening area (12); the arched deformation area (231) is formed at the pull ring The ring tongue piece (23) has an edge that is formed by die stamping and tilted toward the inside of the cover; the middle of the pull ring tongue piece (9) is provided with an arched portion (232) that arches toward the outside of the cover; when the pull ring (2) rotates around its riveting point (3), the pull ring tongue piece (23) covers the opening area (12), and after pressing the middle of the pull ring tongue piece (23), the arched deformation area (231) can be turned over and deformed, so that it contacts the edge of the opening area (12) to close the opening area (12).

Description

Technical Field

[0001] The invention relates to an easy-open lid, in particular to a resealable easy-open lid for food. Background Art

[0002] With the rapid economic development and the improvement of people's living standards, people's demand for food and beverages is increasing. For canned beverage packaging, the design of the easy-open lid is its core point.

[0003] After the traditional can of beverage is opened, the lid cannot be closed again because the tongue has been broken. If the beverage inside has not been consumed, foreign matter such as dust may enter the can, making the beverage inside undrinkable.

[0004] In view of the problem that the pull-open lid cannot be closed again after being opened, the applicant of this case designed a reclosable pull-open lid many years ago, see the invention patent of China Patent Announcement CN203381887U. The pull-open lid disclosed in this patent is composed of a lid body and a pull ring riveted on the lid body, the lid body is provided with an open ring main score line, the area surrounded by the main score line is the opening area, and the part in the opening area is the can body tongue; the front end of the pull ring acts as one end of the lever on the can body tongue in the opening area, and the rear end is the other end of the lever for the user to operate; the pull ring is made of a piece of sheet material with an open ring groove, the opening of the open ring groove faces the front end of the pull ring, so that the rear end of the pull ring is composed of an outer ring body and an inner pull ring tongue; the area of ​​the pull ring tongue is larger than the opening area, and when the pull ring rotates around its riveting point, the pull ring tongue covers the opening area.

[0005] The easy-open lid disclosed in the above invention patent has the function of sealing off dust after opening, but in the resealed state, the pull ring tongue is only located above the opening area, and there must be a gap between the pull ring tongue and the edge of the opening area. The fit between the pull ring tongue and the opening area is poor, and the sealing effect is limited. Summary of the invention

[0006] The invention provides a resealable easy-pull cover, the purpose of which is to improve the fit between a pull ring tongue and an opening area after the easy-pull cover is resealed, thereby improving the sealing effect.

[0007] To achieve the above object, the technical scheme adopted by the present invention is: a resealable easy-open lid, which is composed of a lid body and a pull ring riveted on the lid body; the lid body is provided with an open ring main score line, the area surrounded by the main score line is the opening area, and the part in the opening area is the can body tongue; the front end of the pull ring acts as one end of a lever on the can body tongue in the opening area, and the rear end serves as the other end of the lever for the user to operate; the pull ring is made of a sheet material with an open ring groove, the opening of the open ring groove faces the front end of the pull ring, so that the rear end of the pull ring is composed of an outer ring body and an inner pull ring tongue;

[0008] An arched deformation zone is provided on the edge of the pull ring tongue, and the arched deformation zone is in the shape of an open ring belt along the open ring groove, and its shape and size correspond to the shape and size of the opening area; the arched deformation zone is an edge inclined toward the inner side of the cover and is formed by stamping on the pull ring tongue by a mold;

[0009] In addition, a raised portion is provided in the middle of the pull ring tongue piece and is raised toward the outer side of the cover;

[0010] When the pull ring is in use, it rotates around its riveted point to cover the opening area when resealing. Then, external force presses the middle of the pull ring tongue, and the arched deformation area can be flipped and deformed to contact the edge of the opening area to close the opening area.

[0011] In the above solution, the width of the arched deformation zone accounts for 8% to 15% of the radial dimension of the pull ring tongue.

[0012] In the above solution, the height of the arched deformation zone inclined toward the inner side of the cover is 0.8 to 2 times the thickness of the pull ring tongue.

[0013] In the above scheme, the shape and size of the arched deformation zone should correspond to the shape and size of the opening zone, which means that the shape of the arched deformation zone should correspond to the shape and size of the opening zone, and the arched deformation zone should be guaranteed to cover the edge of the opening zone. The specific shape of the opening zone is not limited, and can be circular, elliptical, rectangular or other irregular shapes. The shape of the arched deformation zone (or the pull ring tongue) should match the opening zone and cover the edge of the opening zone. The size of the arched deformation zone (or the pull ring tongue) should be slightly larger than the opening zone.

[0014] The present invention adopts three measures: 1. An arched deformation zone is designed on the edge of the pull ring tongue. The arched deformation zone is pre-tilted downward toward the inner side of the cover by stamping, and the strength of this place is weakened due to the additional stamping; 2. The shape and size of the arched deformation zone are designed to match the shape and size of the opening area, so that the arched deformation zone just corresponds to and covers the upper side of the edge of the opening area; 3. An arched portion is added to the middle of the pull ring tongue to increase the strength of the middle part of the pull ring tongue. Due to the combined effect of the above three measures, when the pull ring tongue covers the opening area during resealing, and then the middle part of the pull ring tongue is pressed downward by external force, the arched deformation zone and the edge of the opening area can be turned upward after touching, so that the inner side of the arched deformation zone and the edge of the opening area are in line contact, thereby greatly improving the fit between the pull ring tongue and the edge of the opening area, thereby improving the resealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of an embodiment of the present invention;

[0016] Figure 2 A three-dimensional schematic diagram of an embodiment of the present invention Figure 1 , the figure shows the unopened state;

[0017] Figure 3 A three-dimensional schematic diagram of an embodiment of the present invention Figure 2 ,This figure shows the state of opening and then sealing;

[0018] Figure 4 A schematic front view of a pull ring according to an embodiment of the present invention;

[0019] Figure 5 for Figure 4 A top cross-sectional schematic diagram of ;

[0020] Figure 6 This is a schematic diagram of the first step of the opening and resealing operation when using the embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the second step of the cover opening and resealing operation when using the embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram of the third step of the cover opening and resealing operation when using the embodiment of the present invention;

[0023] Fig. 9 This is a schematic diagram of the fourth step of the cover opening and resealing operation when using the embodiment of the present invention;

[0024] Fig.10 This is a schematic diagram of the fifth step of the cover opening and resealing operation when using the embodiment of the present invention;

[0025] Fig.11 for Fig.10 The enlarged schematic diagram of the circle in the figure shows the state in which the arched deformation area is turned over and matched with the edge of the opening area during resealing;

[0026] Fig.12 It is a schematic diagram of the formation of the arched deformation zone in the embodiment of the present invention.

[0027] In the above attached figure:

[0028] 1. Cover; 11. Main score line; 12. Opening area; 13. Tank tongue;

[0029] 2. pull ring; 21. open ring groove; 22. annular body; 23. pull ring tongue; 231. arched deformation area; 232. arched portion;

[0030] 3. Riveting points;

[0031] 4. Upper mold core;

[0032] 5. Lower mold core. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0034] Example: See Figure 1-12 As shown:

[0035] A resealable easy-open lid, see Figure 1-3 As shown, it is composed of a cover body 1 and a pull ring 2 riveted on the cover body.

[0036] See also Figure 1-3 As shown, the cover body is provided with an open ring main score line 11, the area enclosed by the main score line 11 is an opening area 12, and the part in the opening area 12 is a can body tongue piece 13. The front end of the pull ring 2 acts as one end of a lever on the can body tongue piece 13 in the opening area 12, and the rear end serves as the other end of the lever for the user to operate.

[0037] See also Figure 4 , 5 As shown, the pull ring 2 is made of a sheet material with an open ring groove 21, and the opening of the open ring groove 21 faces the front end of the pull ring 2, so that the rear end of the pull ring 2 is composed of an outer ring body 22 and an inner pull ring tongue 23.

[0038] See also Figure 4 , 5 As shown, the edge of the pull ring tongue piece 23 is provided with an arched deformation area 231, and the arched deformation area 231 is an open ring belt along the open ring groove 21. Figure 4 Indicated by grid shaded area.

[0039] The shape and size of the arched deformation area 231 correspond to and match the shape and size of the opening area 12 to ensure that the arched deformation area 231 can cover the edge of the opening area 12 .

[0040] The arched deformation area 231 is an edge that is formed on the pull ring tongue piece 23 by a die stamping and is inclined toward the inner side of the cover. Figure 5 As shown, the height h of the arched deformation area 231 inclined toward the inner side of the cover is preferably 0.8 to 2 times the thickness of the pull ring tongue piece 23 .

[0041] See also Figure 4 , 5 As shown, the middle of the pull ring tongue piece 9 is provided with an arched portion 232 arched toward the outside of the cover. The shape of the arched portion 232 is not limited and can be various shapes. The function of the arched portion 232 is to increase the strength of the middle of the pull ring tongue piece 9.

[0042] When in use, when resealing, after the pull ring 2 rotates around its rivet point 3 so that the pull ring tongue 23 covers the opening area 12, an external force presses the middle part of the pull ring tongue 23, and the arched deformation area 231 can be flipped and deformed so that it contacts the edge of the opening area 12 to close the opening area 12.

[0043] The width A of the arched deformation zone 231 is preferably 8% to 15% of the radial dimension L of the pull ring tongue 23. Figure 4 shown.

[0044] like Fig.12 As shown, the forming of the arched deformation area 231 of the pull ring tongue piece 23 is schematically shown, and the edge of the pull ring tongue piece 23 is stamped by a mold (upper mold core 4 and lower mold core 5).

[0045] The usage process of this embodiment is as follows: Figure 6-11 As shown:

[0046] Initial unopened cans such as Figure 6 To open the cover, Figure 7 As shown in FIG. 1 , first pull up the ring body 22 of the pull ring 2, so that the front end of the pull ring 2 acts on the can body tongue piece 13 in the opening area 12 to break the main score line 11, and the can body tongue piece 13 is turned down to reach the opening state; then, turn down the ring body 22 of the pull ring 2, at this time Figure 8 As shown in the figure, the beverage in the can can be consumed. Fig. 9 As shown, first rotate the pull ring 2 so that the pull ring 2 rotates 180 degrees around its riveting point 3 so that the pull ring tongue 23 covers the opening area 12. Fig. 9 As shown; then, Fig.10 As shown, an external force presses the middle of the pull ring tongue piece 23 (as shown by the arrow in the figure), so that the arched deformation area 231 is turned upward and deformed, so that the arched deformation area 231 contacts the edge of the opening area 12, as shown in FIG. Fig.11 , so that the pull ring tongue 23 closes the opening area 12.

[0047] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A resealable easy-open lid, characterized in that: The invention comprises a cover body (1) and a pull ring (2) riveted to the cover body; the cover body is provided with an open main scale line (11), the area enclosed by the main scale line (11) is an opening area (12), and the part in the opening area (12) is a can body tongue piece (13); the front end of the pull ring (2) acts as one end of a lever on the can body tongue piece (13) in the opening area (12), and the rear end serves as the other end of the lever for operation by a user; the pull ring (2) is made of a sheet material provided with an open ring groove (21), the opening of the open ring groove (21) faces the front end of the pull ring (2), so that the rear end of the pull ring (2) is controlled by an external The annular body (22) is composed of an inner pull ring tongue (23); An arched deformation zone (231) is provided on the edge of the pull ring tongue piece (23), and the arched deformation zone (231) is in the shape of an open ring belt along the open ring groove (21), and its shape and size correspond to the shape and size of the opening area (12); the arched deformation zone (231) is an edge inclined toward the inner side of the cover and is formed by die stamping on the pull ring tongue piece (23); Furthermore, a raised portion (232) is provided in the middle of the pull ring tongue (23) and is raised toward the outside of the cover; In the use state, when the pull ring (2) is rotated around its riveted point (3) during resealing so that the pull ring tongue piece (23) covers the opening area (12), an external force presses the middle part of the pull ring tongue piece (23), and the arched deformation area (231) can be turned over and deformed so that it contacts the edge of the opening area (12) to close the opening area (12); The width of the arched deformation zone (231) accounts for 8% to 15% of the radial dimension of the pull ring tongue (23); The height of the arched deformation zone (231) inclined toward the inner side of the cover is 0.8 to 2 times the thickness of the pull ring tongue (23).

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