JPS636024Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a full-opening lid body in which most of the top plate of a can is used as an opening removal part, and a pull tab provided on the lid is pulled up to remove the opening removal part. This relates to a can lid that removes.

[Prior Art] As shown in FIG. 1, a conventional full-opening can lid has a top plate portion 11 with a large portion of the opening removed portion 12, and a pull tab 13 with a ring attached thereto. The opening removing part 12 is removed by pulling up the pull tab 13, and the score 20 forming the periphery of the opening removing part 12 surrounds the opening removing part along near the periphery of the top plate part 11. .

In addition, the opening removal part 12 provided on the top plate part 11 is divided into three parts, and pull tabs are provided on each of the parts on both sides excluding the central part, and by opening one of the divided parts, the part of the top plate part 11 is divided into three parts. A lid body has also been devised which allows the lid to be opened and also allows the entire opening removal section 12 to be opened by performing two opening operations (for example, Utility Model Application No. 10.851/1983).

[Problems to be solved by the invention] A large part of the top plate part 11 as described above is replaced by the opening removal part 1.
2, and the height of the can container is low, when pulling up the pull tab 13 with your dominant hand (for example, your right hand), it is difficult to pull up the pull tab 13 with your other hand because the height of the can container is low. It is common practice to firmly grasp the can body or the periphery of the can lid with the thumb and four fingers of the left hand (for example, on the left hand). At this time, since the can is low, the back of the hand grasping it is relatively high, and the space between the thumb and index finger covers the upper part of the can, that is, the upper part of the rear half 12b of the opening removal part 12 in the can lid. .

On the other hand, the force for pulling up the pull tab 13 is applied to the front half 12a of the opening removed portion 12 of the can lid, as the scores are outward curved portions 22a' and 22a''.
Because the width of the opening removal section 12 is widened, a very strong pulling force is required at the initial stage of pulling up.
2b is a curved portion 22 where the score is toward the terminal end 21b.
b′, 22b″, and the width of the opening removal portion 12 is narrowed by bringing the scores 20 close together, so the pulling force can be weak.
When opening the rear half 12b, the opening force of the front half 12a is excessive, and the opening speed of the rear half 12b becomes rapid, pressing down on the wide part of the opening, for example, between the thumb and index finger of the left hand. The opening removal section 12 that has been pulled up may enter, causing injury such as injury to fingers.

In addition, even in a full-opening can lid where the top plate 11 can be divided into multiple parts and the score formed around the periphery of the top plate 11 is formed by a single smooth curve, it is necessary to pull the pull tab. Depending on the direction of lifting, the entire opening removal section 12 may be pulled up as a whole instead of a partial opening, or the opening removal section 12 may be pulled up as a whole.
There is a risk that a portion of the aperture removal section 12 may be accidentally torn off due to the intermediate score while the entire portion is being pulled up.

[Means for Solving the Problem] The lid of the can container according to the present invention is the lid of an easy-open container that opens the entire surface of the top plate, and the opening removal portion is removed by the first opening removal using one central score. and a second opening removal section, and each of the first opening removal section and the second opening removal section is provided with a pull tab, and the first opening removal section is divided into the central score and the first peripheral score. Divide it into sections to enclose it, and
The aperture removal section is defined so as to be surrounded by the central score and the second peripheral score, and each end of the central score is smoothly connected to either the first peripheral score or the second peripheral score, and is connected to the other peripheral score. In connecting the ends of the score to the inwardly curved portion of the peripheral score that smoothly connects with the central score,
The can lid has an end portion of the peripheral score connected at right angles to the inward curved portion, and a hard-to-break structure such as a thick wall portion formed at the end portion.

[Function] The present invention is divided into a first opening removal section 12a and a second opening removal section 12b by a central score 36, and a peripheral score of the first opening removal section 12a and a peripheral edge score of the second opening removal section 12b. Because the end of one score is perpendicular to the other score at the connection part, and the connection part has a structure that is difficult to break such as a thick part, one pull tab 1
3, only the first opening removal section 12a or the second opening removal section 12b is opened, and partial opening can be reliably performed.

[Example] As shown in FIG. 2, an example of the full-opening can lid according to the present invention is a can in which a peripheral score is engraved so that most of the top plate portion 11 of the lid body 10 is an opening removal portion. In the can lid 10, the peripheral edge score 30 is divided into a first peripheral edge score 30a and a second peripheral edge score 30b, and the opening removal part 12 is divided into the front half with the central score 36 in the shorter diameter direction at the center of the lid 10. 1st of
Opening removal section 12a and second half opening removal section 12b
It is divided into two parts, and pull tabs 13a and 13b are provided symmetrically at outward positions in the first opening removal part 12a and the second opening removal part 12b, respectively. The score that surrounds and partitions the first opening removed part 12a is formed by a first peripheral score 30a that partitions the outside of the first opening removed part 12a and a center score 36, and
The entire score surrounding and dividing a is composed of a straight line shape and an inwardly curved shape without forming a bent shape part over the entire line,
All the scores that surround and partition the first opening removal part 12a are made to have a normal thickness and have a score incision remaining part that has the same thickness.

The second peripheral score 30b that surrounds and partitions the second opening removal portion 12b is connected to the second pull tab 13b.
The curved portions 32b', 32b'' extend from the initial breaking score point 31b closest to the curved portions 32b', 32b'' to both sides, and the straight outer scores 33b', 33b',
33b'' and continues in the direction of the front half 12a, and then toward the inwardly curved portions 34a' and 34a'' of the first peripheral score 30a at the terminal close to the first peripheral score 30a that surrounds and divides the first opening removal section 12a of the first half. The end portions 35' and 35'' are not curved but bent and connected to the first peripheral score 30a, and the second opening removed portion 12b is surrounded and sectioned by the second peripheral score 30b and the center score 36. In this manner. In, the first
First peripheral score 3 that defines the opening removal section 12a
0a and the second peripheral edge score 30b that partitions the second opening removal section 12b are connected to each other at connection points A and B, but the terminal portions 35' of the second peripheral edge score 30b,
35″ is an inward curved portion 34 of the first opening removal portion 12a.
a', 34a'' in a substantially perpendicular or nearly perpendicular shape, and defines the second opening removal section 12b.
5' and 35'', as shown in FIG. 3, a portion 16 is provided in which the cut portion 15 of the score is made shallower, and a rupture-resistant portion is provided with a thick wall portion 18 that is thicker than the normal cut remaining portion 17. 37'.

Since the opening removing part 12 and the score in this embodiment have the above-described structure, when opening the package, for example, when the first pull tab 13a is pulled up with the right hand, the score point 31a closest to the pull tab 13a is initialized. A break occurs, and then the first pull tab 1
As 3a continues to be pulled up, the breakage of the score spreads along the outward curved portions 32a', 32a'', breaks the outer scores 33a', 33a'', and the first opening removal portion 12a gradually opens upward. To go.
Then, when the pull tab 13a is further pulled up, the score breaks at the inwardly curved portions 34a', 34.
a''.At this time, in the inward curved portions 34a' and 34a'', the second peripheral score 30b is connected at points A and B, but the second peripheral score 30b is connected at points A and B.
The terminal portions 35' and 35'' of the first peripheral score 30a are connected at a nearly right angle to the inwardly curved portions 34a' and 34a'' of the first peripheral score 30a, so the score breaks at points A and B. In order to proceed to the terminal parts 35' and 35'' of the second peripheral score 30b, the direction of movement should be changed from a curved line to a perpendicular or nearly perpendicular bent form, and the width of the opening to be broken should be widened. However, there is considerable resistance to this change.

Furthermore, at the connection points A and B between the first circumferential edge score 30a and the second circumferential edge score 30b, the break resistance portion 37' with a thicker cut remaining portion is connected to the second circumferential edge score 30.
b, the inwardly curved portions 34a', 34 of the first peripheral score 30a are formed at the terminal portions 35', 35'' of
The fracture at a'' progresses in the direction along the inwardly curved portions 34a', 34a'', which is the direction in which the fracture is easy, and progresses to the central score 36. Therefore, even if the second peripheral score 3b is connected to the first peripheral score 30a, the first pull tab 1
3a, the fracture starting from the initial breaking point 31a does not proceed to the terminal portions 35', 35'' of the second peripheral score 30b at the connecting points A, B of both scores 30a, 30b, but instead extends to the first peripheral score 30a. The central score 36 is then ruptured. Therefore, only the first opening removal part 12a is removed, and the palm and fingers holding down the second opening removal part 12b are not injured.

Next, when the second pull tab 13b is pulled up to remove the second opening removal part 12b, the uncut portions 35' and 35'' of the second peripheral edge score 30b are thickened with a resistance part 37 that is difficult to break. ′ is formed, the second peripheral score 30b only opens upward, and the second pull tab 13b stops being pulled up at the end portions 35′, 35″ of the second peripheral score 30b without being removed. be done. Next, when holding the second pull tab 13b and pulling it upward to the right and then upward to the left, do not simultaneously pull it up against the resistance portions 37' formed at both ends of the second peripheral score 30b.
Since a separate pulling force is applied, the resistance portion 37 breaks relatively easily, and the rear half portion 12b is removed. In this way, the entire opening removed portion 12 of the lid body 10 is removed, and when pulling up the first pull tab 13a, first the first opening removed portion 12a is removed as described above.
Since only the opening is removed, the second opening removal section 12b
Next, rotate the can body and pull up the second pull tab 13b to remove the second pull tab 13b without injuring your palm or fingers.
Since the opening is removed from the opening removal section 12b, there is no risk of injuring the hand holding it down.

If the second pull tab 13b of the second opening removal section 12b is pulled up before the first pull tab 13a, the initial breakage will occur at the score point 31b closest to the second pull tab 13b, and then the second pull tab 13b will be pulled up. As the pull tab 13b continues to be pulled up, the breakage of the score spreads to both sides by the curved parts 32b', 32b'', and then both outer scores 33b', 33b'' are broken, and the second opening removal part 12b gradually moves upward. It opens up to. When the score break approaches the first peripheral score 30a, the end portions 35', 35'' of the second peripheral score 30b are not curved but bent end portions 35', 35''.
The resistance increases somewhat at the terminal portions 35', 35'', and the opening speed is reduced.Next, before the score break reaches the connection points A, B, a resistance portion 37' is formed by the thick portion 18. , and connection point A,
In B, the inward curved portion 34 of the first peripheral score 30a
Since it is connected in a shape perpendicular or nearly perpendicular to a′, 34a″, a large resistance is generated to the subsequent breakage of the score at this point.In this way, the breakage of the second peripheral score 30b is caused by Part 35', 3
There was some resistance in the bent shape at 5″,
Immediately thereafter, a large resistance is encountered at the score connection points A and B, so the pulling up of the second pull tab 13b is interrupted.

Therefore, even when the second pull tab 13b is pulled up first, only the second opening removal portion 12b is kept upright with respect to the lid 10 and is not removed.
Next, rotate the can body 180 degrees to remove the first opening without injuring the palm or fingers holding down the first opening removal part 12a.
Pull up the pull tab 13a and remove the first opening removal part 12a.
and the second opening removal part 12b are removed together, so there is no risk of injuring the hand holding it down.

In addition, the above-mentioned part is the second peripheral score 30
Although the break resistance part 37' of the thick wall part 18 is formed in the terminal parts 35', 35'' of b to create a structure that is difficult to break, the depth of the score is set to zero and the depth of the thick wall part 18 is not limited to this. By making the thickness equal to the thickness of the top plate part 11, the terminal parts 35', 35'' of the second peripheral score 30b are made into a discontinuous structure to the first peripheral score 30a, and from the second peripheral score 30b to the first peripheral score 30a. In some cases, it may be difficult to break.

Moreover, the embodiment shown in FIG. 2 has a median score of 3.
Both ends of the central score 36 and both ends of the first peripheral score 30a are smoothly connected by connecting both ends of the central score 36 to the inwardly curved parts 34a' and 34a'' formed at both ends of the first peripheral score 30a. When connecting both ends of the central score 36 to the second peripheral score 30b, or connecting one end of the central score 36 to the first peripheral score 30b,
In some cases, it may be smoothly connected to the peripheral score 30a, and the other end of the central score 36 may be smoothly connected to the second peripheral score 30b.

[Effect of the invention] As described above, the embodiment of the invention provides the pull tabs 13 in the first opening removal part 12a and the second opening removal part 12b, respectively, and also connects the opening removal part 12 with the center score 36 and the peripheral score. At connection points A and B between the first peripheral score 30a and the second peripheral score 30b, one peripheral score is orthogonally connected to the inwardly curved portions 34a' and 34a'' of the other peripheral score, and Resistor part 37' at the connection point
Even if it is a full-opening type, only half of the opening removal section 12 is removed in one opening operation, and the entire surface is not removed in one movement. No injury to the presser.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a conventional full-opening lid body 10, FIG. 2 is a plan view of an embodiment according to the present invention, and FIG.
The figure is an enlarged view of a portion of the lid 10 according to the present invention in which the remaining portion of the score notch is thickened. 10...Lid body, 11...Top plate part, 12...Opening removal part, 13...Pull tab, 30...Score.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In the lid of an easy-open container that opens the entire surface of the top plate, the opening removal portion is divided into a first opening removal portion and a second opening removal portion by one central score. and a pull tab is provided in each of the first opening removal part and the second opening removal part, and the first opening removal part is divided so as to be surrounded by the center score and the first peripheral score, and the second opening removal part is divided into two parts. The removal section is divided into a section surrounded by the central score and a second peripheral score, and each end of the central score is surrounded by the first peripheral score.
When connecting smoothly to either the peripheral score or the second peripheral score, and connecting the end of the other peripheral score to the inwardly curved part of the peripheral score that is smoothly connected to the central score, the end of the peripheral score 1. A full-opening lid body, characterized in that the end portion is connected at right angles to the inwardly curved portion, and the score depth of the end portion is changed to form a structure that is difficult to break. (2) The fully opening type lid body according to claim 1, wherein the cut remaining portion of the score has a thick wall as the structure that is difficult to break. (3) The full-opening lid according to claim 1, wherein the break-resistant structure is such that a discontinuous portion is formed at the end of the score without cutting the score.