JPH11292077A - Can lid for stay-on tab type can container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate tab pick-up operation at a can lid by a method wherein a pivot of a tab pick-up part is made eccentric, being moved from the center of the can lid to the opposite side of an opening, and the tab pick-up part is mounted, being in contact with the upside of the opening, so that it can be turned easily to the opposite side of the opening. SOLUTION: A pivot 5' of a tab pick-up part 1 is made eccentric, being moved from the center of a can lid part 3 to the opposite side of an opening 2, and the tab pick-up part 1 is mounted, being in contact with the upside of the opening 2, so that it can be turned easily round the offset pivot 5' to the opposite side of the opening. As the tab pick-up part 1 is turned to the opposite side with the pivot 5' being an original point on opening the can lid, the front end of the tab pick-up part 1 protrudes, striding over the outer circumferrential wall of the can lid part 3, and thus opening is made easily by pushing up the front end of the tab pick-up part 1 with the thumb or the like while the can drum part 4 is being held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can lid for a can of a stay-ion tub system. For more information,
The present invention relates to facilitating the opening operation of a tub of a tub type can container.

[0002]

2. Description of the Related Art The can lid used for steel cans or aluminum cans for various beverages is generally a "pull tab type".
And the "stained tub method" are adopted, but the recent trends are that they are easy to drink and that the opened tab remains attached to the can, so that the tab is not discarded without permission From the viewpoint of garbage disposal, the "stained tub method" is the mainstream.

[0003] However, in such a canion-tab type can lid, since a gap between the can lid body and the tab holding portion is narrow, a woman, a child, an elderly person, or a person with a physical disability can put a finger in the gap. It was difficult to insert and raise the tab holding part. In particular, women with long nails may crack their nails and even men may have painful fingertips.

Various opening devices have been devised to solve such problems. However, such an opening device is inconvenient in that the rabbit must be carried outside the home at all times when used at home.

[0005] In order to solve the above problems, Steion
A method of mounting an opening tool on the bottom of a tub can has been proposed (JP-A-7-205987). According to such a proposal,
This is extremely effective in that cans can be easily opened and drinked at home and abroad. However, since the used opening tool is easily discarded, there is a problem in terms of the above-mentioned refuse disposal, and this point has an opposite effect to the features of the stay-on tub method.

[0006]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems. That is, Steion
An object of the present invention is to facilitate a tab lifting operation of a tab type can lid.

[0007]

Means for achieving the above object are as described in the appended claims.
(1) In a stay-on tub type can, an eccentric shaft in which a support shaft at a tab holding portion is moved to a side opposite to an opening portion of the can container from a center of a can lid portion of the can container, And a tab-on-top can be fitted so as to be in contact with the opening, and can be easily turned to the opposite side about the eccentric shaft. It is a can lid of a container. Further, (2) the position of the support shaft of the tab holding portion is between the length A on the opening side where the diameter of the can lid is divided into two and the length B on the side opposite to the opening, and The ratio of the length A to the length B is such that A: B = 1: 0.6 to 0.8, which is the lid of the Sdeion tub type can.

The means for solving the problems according to the present invention will be described in more detail with reference to the drawings. FIG. 1 is a plan view of a conventional stay-tub type can container. In the conventional can opening operation, a finger or a toe is inserted between the can lid portion 3 and the tip of the tab holding portion 1, and the tab holding portion is pulled up. FIG. 2 is a plan view of a canister of the stay-ion tub type according to the present invention. The tab structure according to the present invention is an eccentric shaft in which the support shaft 5 'of the tab holding portion 1 is moved to the opposite side of the opening 2 of the can from the center of the can lid 3 of the can. The tab holding portion is fitted so as to be in contact with the opening, and the tab holding portion is configured to be easily rotatable around the eccentric shaft in a direction opposite to the opening. You. The operation of opening the can lid is as shown in FIG.
That is, when the tab holding portion 1 shown in FIG. 2 is rotated to the opposite side from the eccentric shaft 5 ′, the tip of the tab holding portion protrudes across the outer peripheral wall 3 ′ of the can lid portion 3. As shown in FIG. 6, the tip of the tab holding portion 1 can be pushed up with the thumb 6 or the like while holding the can body 4, so that anyone can easily open the can.

The above-mentioned fitting of the tab holding portion so as to be in contact with the opening portion means that the tab holding portion is arranged so as to cover over the opening portion 2 and is moved from the center of the can lid. The eccentric shaft 5 'on the lid means that the tab holding part is fitted. Further, the fitting method may be such that the tab holding portion is swaged with the can lid, or may be fitted by another method in which the contents of the can container do not flow out. It is important that the tab holding portion is fitted to the extent that it can be easily rotated.

In the present invention, it is important to determine the position of the eccentric shaft, which is a fulcrum for rotating the tab holding portion from above the opening to the opposite side. FIG. 4 illustrates a trajectory 7 in which the tab holding portion 1 rotates starting from the eccentric shaft 5 ′. Now, the point where the diameter of the can lid is divided into two such that the length A on the opening side> the length B on the side opposite to the opening is defined as an eccentric shaft 5 '. However, the opening is omitted in FIG. The above length A
The ratio between the length and the length B depends on the size of the can lid, but is preferably in the range of 1: 0.6 to 0.8.
With this setting, when the tab holding portion 1 is rotated starting from the eccentric shaft 5 ′, the end of the tab holding portion 1 straddles the outer wall of the can lid 3, thereby facilitating the can opening operation. If the ratio of the length A: length B exceeds A: B = 1: 0.8, the eccentric axis is too close to the center axis of the can lid, so that the tip of the tab holding portion sufficiently straddles the outer wall of the can lid. Therefore, the above effects cannot be obtained. If A: B is less than 1: 0.6, the eccentric shaft is too far from the center axis of the can lid or is too close to the outer periphery to make the can opening operation unstable and to hold the tab. It is not preferable because the top end is too long to reach the outer wall of the can lid. From a practical point of view, the tab holding part 1 is connected to the eccentric shaft 5 '.
A: B = 0.6-0.8 so that the length of the top end of the tab holding portion when straddling the outer wall of the can lid portion is 4 to 10 mm from the opening of the can lid. It is preferable to determine the position of the eccentric shaft within the range of (1).

The length of the tab holding portion may be determined arbitrarily according to the diameter of the can lid of the can in consideration of the above points, but the can is generally laminated as shown in FIG. Since it is transported, it is preferable that the length is determined in consideration of the shape of the bottom portion 8 of the can container so that the layers can be stably stacked. The material of the can to which the present invention can be applied is steel, aluminum, or another material, and is not particularly limited.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

According to the present invention, in the can lid of a stay-on tub type can container, when the can container is opened, the tab holding portion which is in contact with the opening is rotated to the opposite side. Since the tip of the tab holding portion projects so as to straddle the outer peripheral wall of the can lid, the can opening operation is extremely easy. That is, as a result of the tip of the tab holding portion projecting outward from the outer peripheral wall of the can lid, the can can be easily opened with a small force based on the so-called leverage principle.

[0013]

Embodiments of the present invention will be described below with reference to the drawings and examples. The first embodiment according to the present invention is shown in FIG.
A. That is, the diameter of the can body 4 is 67 m.
m, the diameter of the can lid 3 is 55 mm, and the diameter of the can bottom 8 is 48
eccentric shaft 5 ′ at a position shifted 5 mm from the center 9 of the can lid 3 in the direction opposite to the opening 2.
Set. At this time, the diameter A of the can lid 3 and the length A and the length B that divide the 55 mm into two are A = 32.5 mm, B = 2
2.5 mm, and A: B = 1: 0.69. When the diameter 48 mm of the can bottom 8 is divided into the above A: B ratio by 2 minutes, A
= 28.4 mm and B = 19.6 mm, the length from the eccentric shaft 5 ′ to the tip of the tab holding portion 1 is 28 in consideration of the stacking of the cans as described with reference to FIG. 5. .4
mm. In the present embodiment, the length from the eccentric shaft 5 'to the tip of the tab holding portion 1 is 27.5.
mm. When the tab holding portion 1 is rotated to the opposite side of the opening 2, the state becomes as shown in FIG. 8B. That is, the tip 1 ′ of the tab holding portion straddles the outer wall of the can lid 3. It protrudes by a length of 5 mm and does not protrude outside the can body 4. Thus, the tip 1 'of the tab holding portion can be easily pushed up by the method shown in FIG. Further, a display 10 of the rotation direction is provided on the can lid 3 so that the user does not mistake the rotation direction of the tab holding portion 1. Further, a stopper is provided on the can lid 3 so that the rotating position of the tab holding portion 1 is not mistaken. The rotation direction display 10 and the stopper 11 are
The object can be achieved by stamping the can lid portion 3 with a convex mark or the like during the manufacture of the can container.

A second embodiment according to the present invention is described with reference to FIG. 7A. That is, FIG. 7A is a cross-sectional view of a main part of the can lid for describing a method of fitting to the can lid 3 via the eccentric shaft 5 ′ of the tab holding portion 1. The tab holding part 1 forms an eccentric shaft 5 ′ by caulking with a can lid part 3. The height of the outer wall 3 'of the can lid of the can container is generally about 2 to 5 mm from the surface of the can lid. In this embodiment, the outer wall is 3 mm high. That is, the thickness of the tab holder 1 near the eccentric shaft 5 'is 2.5 to 3 mm, and the thickness of the tab holder 1 required for the can opening operation is about 1 mm. The height of the tab holding portion 1 is approximately the same as the height of the can lid outer peripheral wall 3 '. Thus, when the tab holding portion 1 is rotated to the opposite side of the opening 2, the tab holding portion 1 can easily straddle the outer peripheral wall 3 'of the can lid portion 3, so that the can opening operation is easy. Can be implemented.

A third embodiment according to the present invention is described with reference to FIG. 7B. That is, FIG. 7B is a cross-sectional view of the main part of the can lid described similarly to FIG. 7A. The height of the can lid outer peripheral wall 3 'in this embodiment is 2 mm. Approximately 5 mm at the tip of the tab holding portion 1 fitted to the eccentric shaft 5 ′ crimped by the can lid 3.
A portion of about mm was bent upward to the same height as the outer peripheral wall 3 'of the can lid. Further, the size of the hole in which the tab holding portion 1 is fitted around the eccentric shaft 5 'is set to be larger than the diameter of the 18-core shaft 5' by about 0.5 mm. Thus, the rotation of the tab holding portion 1 is extremely easy, and the can opening operation can be easily performed.

[0016]

According to the present invention, as described in detail above, the operation of opening a can of a stay-on tub type can is significantly improved as compared with the conventional can, and it can be used by women and women. It can be opened very easily by children, old people and people with physical disabilities.

[0017]

[Brief description of the drawings]

FIG. 1 is a view for explaining a tab holding portion of a conventional stay-on tub type can container.

FIG. 2 is a view for explaining a tab holding portion of the stay-on tub type can according to the present invention.

FIG. 3 is a view for explaining a state in which a tab holding portion of the stay-on tub type can container according to the present invention is rotated.

FIG. 4 is an explanatory view relating to a position of an eccentric shaft of a tab holding portion of a stay-on tab type can container according to the present invention.

FIG. 5 is a cross-sectional view illustrating the stacking of the stay-on tub cans according to the present invention.

FIG. 6 is a perspective view illustrating the operation of opening the canion-tub type can according to the present invention.

FIG. 7A is an embodiment of a method for supporting a tab holding portion of a stay-on tub type can according to the present invention.

FIG. 7B is another embodiment of a method for supporting a tab holding portion of a stay-on tub type can according to the present invention.

FIG. 8A is an embodiment relating to the configuration of the can lid of the stay-on tub type can according to the present invention.

FIG. 8B is an embodiment relating to the configuration of the can lid of the stay-on tub type can container according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tab holding part 1 'End part of tab holding part 2 Opening 3 Can lid part 3' Peripheral wall of can lid part 4 Can body part 5 Tab holding upper supporting shaft 5 'Tab holding upper eccentric shaft 6 Thumb 7 Tab holding upper part 8 The bottom of the can 9 The center of the can 10 Indication of the rotation direction of the tab holding part 11 Stopper at the time of rotating the tab holding part A Length of the opening part which divides the diameter of the can lid part by two B The length on the opposite side of the opening that divides the diameter of the can lid into two

Claims (2)

[Claims] In the present invention, there is provided an eccentric shaft in which a support shaft of a tab holding portion is moved to a side opposite to an opening of a can container from a center of a can lid portion of the can container. And a tab holding portion is fitted so as to be in contact with the opening, and can be easily turned to the opposite side about the eccentric shaft. Can lid of the method can container. 2. In a stay-on tub type can container, a position of a support shaft at a tab holding portion is a length A on an opening side where a diameter of the can lid is divided into two and a length on a side opposite to the opening. Between B and
And the ratio of the length A to the length B is A: B = 1: 0.6
2. The can lid of a stay-on tub type can according to claim 1, wherein the can is set to 0.8.