JP2017019557A - Universal design can lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new can lid by which tabs of all kinds of beverage cans containing a positive pressure can and a negative pressure can, can be easily lifted up by tips of one's nails, with small force by everybody including men and women of all ages.SOLUTION: A step between a lid plate side base end part 20b and a tab side base end part is connected in an almost inclined state through a fold curve part 20c and a fold curve part 20d, and when a tab operation part 21 is lifted up, a tab tip end part 22b can submerge downward by providing a recess groove part 15 which imitates the tap tip end part 22b on an upper face of the lid plate. When the tab operation part 21 is lifted up, one can easily lift up the tab by tips of one's nails with small force.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an easy-open can lid (easy open end) for beverage cans such as beer, coller, and coffee.

  2. Description of the Related Art Conventionally, beverage cans such as beer, caller, and coffee can lids are configured as easy-open can lids using a tab mechanism.

  The easy open end of beverage cans is the stion tab method, and the tab is fixed to the cover plate. Is formed. By causing the operation part at the rear of the tab, it is cut by the pressing part at the front part of the fixing part and the front part of the tab. Subsequently, by causing the tabs to be raised vertically, the cut lines are sequentially cut, the opening pieces are folded into the can body to open the can, and then the tabs are folded back to their original positions to complete the opening.

  By the way, the problem of the steion tab method is that there is no play for inserting the fingertip into the lower part of the operation part of the cover plate and the tab when the tab is caused to rotate to initially cut the cut line forming the opening piece. This is similar to causing a leaf spring that is in close contact with the lid plate. To cause a tab by placing a fingernail under the operation part of the tab, the burden on the person is greater. If there is no opening, it is at the point. The present situation is that the barrier free which is originally desired, that is, nobody has reached the range if anyone can easily open with a fingertip by various methods.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a universally designed can lid that can easily cause a tab to be used by both men and women with less force.

In order to achieve the above object, the can lid of the present invention is configured as follows.
(1) The invention according to claim 1 causes the tab (2) attached to the upper surface of the lid plate (12) via a foldable attachment piece (20) to lightly cause the operation portion (21) at the rear of the tab. , The mounting piece (20) is rotated as a fulcrum, and the tab plate side base end portion where the maximum lifting force is concentrated in a balanced state between the tab tip end portion (22b) and the cover plate side base end portion (20b). In (20b), the operation part (21) is raised almost vertically, the fracture part (10d) of the cut line (10d) is initially cut, and then it is folded into the can body while cutting from the side part of the opening (11). Complete the opening in the can lid,
In order to easily cause the tab operation part (21), starting from the bent curve part (20c) and the cover plate side base end part (20b) on the center line L of the upper surface of the flat pressing part (22), A straight concave groove portion (20k) is formed in close contact with the upper surface of the cover plate (12) toward the tip end portion (22b), and the pressing portion intersection portion (20j) where the linear concave groove portion (20k) and the bending curve portion (20c) intersect. ) As the first fulcrum of the operating portion (21), and when the operating portion (21) is raised, the tab side base end (20e) is lifted upward with the pressing portion intersecting portion (20j) as a fulcrum. The operation unit (21) is caused.
Further, in order to increase the angle of the operation portion (21) of the tab (2) by the fingertip and make it easier to apply the fingertip, a step portion is formed below the tab tip portion (22b) so as to be thinner than the thickness of the tab body. (22c) is preferably formed (claim 2).
Further, when the operation portion (21) of the tab (2) is first raised, the tab tip portion (22b) sinks downward with the pressing portion intersecting portion (20j) as a fulcrum so that it can be raised at a larger angle. Thus, it is preferable that a concave groove (15) substantially following the shape of the tab tip (22b) is formed on the upper surface of the lid plate (12).

As described above, according to the present invention, the following excellent effects can be obtained.
(1) According to the first to third aspects of the invention, the tab attached to the cover plate is caused to have an operating portion with a fulcrum as a fulcrum so that the raising of the tab is lightened, and further below the tip of the tab. The tab can be easily raised through the step on the side and the concave groove on the upper surface of the cover plate.
(2) Since only a narrow straight concave groove is formed in the pressing part of the tab, the width of the tab can be made sufficiently smaller than conventional tabs, contributing to cost reduction and prevention of global warming. .

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.
1 to 11 show an embodiment of the present invention.

<Cover plate 12>
As shown in FIGS. 1 to 3, the opening portion 11 of the lid plate 12 is formed by a cut line 10 engraved in a substantially U shape substantially including the center of the lid plate 12. A tab crimping portion 14 for attaching the attachment piece 20 of the tab 2 to the lid plate 12 is formed at the center of L, and the tab tip portion is formed on the upper surface of the lid plate 12 just below the tab tip portion 22b of the tab 2. A concave groove 15 is formed following the shape of 22b.

<Tab 2>
As shown in FIGS. 4 to 11, the tab 2 presses the opening 11 and is folded from the lid plate 12 into the can body.
The structure of the tab 2 is shown in FIGS. The tab 2 is formed in a short shape as shown in FIG. Further, a tab operating portion 21 for raising the tab 2 is formed behind the tab crimping portion 14, and the upper surface of the tab pressing portion 22 is formed flat, and the tab 2 is covered from the tab pressing portion 22. The center of the upper surface of the flat pressing portion 22 is so formed that initial cutting is performed when a step connecting the folding curve portion 20d of the mounting piece 20 attached to the plate 12 is tied by the bending curve portion 20c and the tab operation portion 21 is caused. A straight concave groove 20k is formed on the line L, starting from the bending curve portion 20c and the folding curve portion 20d, in close contact with the upper surface of the lid plate and toward the tip portion 22b. Further, when a pressing portion intersecting portion 20j where the straight concave groove portion 20k and the bending curve portion 20c intersect is formed and the tab operation portion 21 is raised via the pressing portion intersecting portion 20j, the pressing portion intersecting portion 20j serves as a fulcrum. The base end portion 20e is lifted upward (see FIG. 8), and the initial triggering of the tab operating portion 21 is lightly caused. The thickness of the tab body is smaller than that of the tab body, and a step 22c is formed on the lower side.

Next, the opening operation of the can lid configured as described above will be described.
As shown in FIG. 7, when the operation portion 21 of the tab 2 is raised through the bending curve portion 20c with the pressing portion intersecting portion 20j as a fulcrum, the tab side base end portion 20e is lifted upward (see FIG. 8). 21 is lightly raised, and the operation portion 21 is raised at a larger angle through the step portion 22c of the tab tip portion 22b and the concave groove portion 15 on the upper surface of the cover plate. The operation so far is a single initial operation of the tab operation unit 21, and almost no force is applied to the fingertip. Next, by inserting the fingertip into the raised operation portion 21 and causing it to move strongly as shown in FIG. 9, the lid-plate-side base end portion 20b is pulled up with the tab tip portion 22b as a fulcrum, and the opening 11 is formed by the linear concave groove portion 22b. The cut line 10d is initially cut while being suppressed.

  Then, as in the prior art, the opening 11 is continuously pressed (see FIG. 10), cut to the final end of the cut line, and then the tab 2 is pulled back to the original position (see FIG. 11) to complete the opening.

  As described above, it is considered that all people can easily open the tab operation part with their fingertips so that all tabs can be easily opened by opening the tabs, making a part of the universal design of cans and contributing. It is a thing.

  It is a top view which shows the can lid | cover for drink cans concerning embodiment of this invention.   FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1.   It is a top view which shows the can lid | cover of the drink can concerning embodiment of this invention.   It is a top view which shows the tab of the drink can concerning embodiment of this invention.   FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.   FIG. 6 is a sectional view taken along line 6-6 in FIG.   It is sectional drawing similar to FIG. 2 which raises a tab lightly and shows an equilibrium state.   FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 7.   Furthermore, it is a cross-sectional view showing a state in which the tab is raised and initially cut.   It is sectional drawing which shows the state which raised the tab further after the initial cutting | disconnection, and was folded to the end part of a cut line.   It is sectional drawing which shows the state which returned the tab.

1 can lid 2 tab 3 can body 10 cut line 10d cut line break part 11 opening 12 lid plate 14 tab crimping part 15 concave groove part 20 tab mounting piece 20b lid plate side base end part 20c folding curve part 20d folding curve part 20e tab side base end portion 20k straight concave groove portion 20j pressing portion intersection portion 21 operation portion 22 pressing portion 22b tab tip portion 22c stepped portion L center line

Claims (3)

The tab (2) attached to the upper surface of the lid plate (12) via a foldable attachment piece (20) is caused to lightly cause the operation portion (21) at the rear of the tab to rotate with the attachment piece (20) as a fulcrum. , The tab end portion (22b) and the cover plate side base end portion (20b) are in an equilibrium state, and the cover plate side base end portion (20b) where the maximum lifting force is concentrated, In the can lid, which is perpendicularly raised, initially cuts the broken part (10d) of the cut line (10), and then cuts from the side part of the opening (11) to complete the folding opening in the can body,
On the center line “L” of the upper surface of the flat pressing portion (22) of the tab (2), the bending curve portion (20c) and the cover plate side base end are provided so that the tab operation portion (21) can be easily caused. Starting from the portion (20b), a straight concave groove portion (20k) is formed in close contact with the upper surface of the lid plate (12) toward the tip portion (22b), and the linear concave groove portion (20k) and the bending curve portion (20c) are formed. The intersecting pressing portion intersecting portion (20j) is formed as the first raising fulcrum of the operating portion (21), and when the operating portion (21) is caused, the bending portion is bent with the pressing portion intersecting portion (20j) as a fulcrum. The can lid characterized in that the tab side base end (20e) is lifted upward via (20c) and the operation portion (21) is raised.   The can lid according to claim 1, wherein the operation portion (21) of the tab (2) is caused by a fingertip to increase the angle and make it easier to put the fingertip on the tab body (22b) below the tab body (22b). A can lid characterized in that a stepped portion (22c) is formed to be thinner than the thickness.   3. The can lid according to claim 1 or 2, wherein when the operation portion (21) of the tab (2) is first raised, the pressing portion intersection (20j) is a fulcrum so that it can be caused at a larger angle. A can lid characterized in that a concave groove (15) substantially following the shape of the tab tip (22b) is formed on the upper surface of the lid plate (12) so that the tab tip (22b) sinks downward.

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