JPH08119276A - Tab for opening drink can actuating continuously two lever - Google Patents

Abstract

PURPOSE: To safely and securely open a drink can with a light force by anyone, by fixing a lug used as a lever with a rotary shaft so as to be folded on a tab and connecting two levers together and enabling the end of tab to rise. CONSTITUTION: When the first lever 1 is pushed down, a force is acted on the connection part 3 of levers through a support point I (green) 2 and the second lever 4 is pushed up and at the same time, the opposite end 6 from the fulcrum II 5 becomes the final action point and then cap 8 is pushed down and opened. In this way, anyone can safely and securely open a drink can with a light force. The lug is not used as a lever and pulled up as it is and hence, the end of tab can be erected. Even if the cap is not pulled until it is broken, the lug is used as a lever until a stage that the tab is erected a little, and then the lug is pulled up or the end of tab is additionally erected directly by a finger to open the can.

Description

Detailed Description of the Invention

[Field of Industrial Application] The present invention relates to a tub for opening a beverage can (beer, juice, etc.).

[Prior Art] A tab-separating-type open-can tab (a can-open tab using one lever) that uses the conventional lever principle captures the end (terminal) of the tab at the hand side. When raised, the opposite end (tip) across the fulcrum becomes the point of action,
The lid surrounded by the score line notches on the end panel of the can container is pushed down to open the can, and it is designed so that the can can be safely opened with a comparatively light force. However, in reality, in the first stage of the can opening operation, it is difficult to catch the end of the tab, even if it tries to cause it.
There was a problem that it required a lot of power and could not be triggered well.

[Problems to be Solved by the Invention] In a conventional tab-unseparable tab using one lever, the operation of catching the tab end with a finger and causing it requires a considerable force. The opposite end (tip) across the fulcrum of the tab
Is the point of action, until the lid is pushed down and the notched part of the score line is broken. Once the lid is torn, it does not require much force.

The present invention describes this first stage of the can opening operation as follows:
The aim is to make it safe and reliable for everyone with a lighter force.

[Means for Solving the Problems] The present invention is
Inventor Chiyo Morita et al. And two others have already filed a utility model (Patent application No. 6-8542) claim 6 "Handle that can be folded at the tip of the tab (referred to as the end in this specification). It is a development of "the one with".

[0006] The invention is to provide a conventional tab-inseparable tab using a lever, and to provide a handle for folding a difficulty in trying to raise it at the end (terminal) of the tab. It is something that was tried to be solved by causing. However, even though this invention solves the problem of capturing tabs, it still requires considerable force to trigger them.

In order to solve the above problem and to achieve the above object, the present invention provides a tab-separated type tab which can be opened by using one conventional lever (as will be described later, the conventional tab is not the same as it is). , The length is different, etc.)
On the other hand, attach the handle used as a lever with a rotating shaft so that it can be folded over the tab, and connect the two levers.
The end of the tab can be raised (the connecting part need not be a rotary shaft but can be freely rotated, so for example, the conventional end part of the tab is used as the shaft,
The handle may be mounted in a ring or cylindrical shape so that it can rotate around its axis).

By the way, in the conventional tab non-separable type tab,
Just attaching the handle cannot be expected to function effectively as a double lever, so note the following two points.

First, since the handle (the first lever) and the conventional tab non-separable tab (the second lever) are connected and the two levers are continuously operated, the two levers are the most effective. It is preferable to set the lengths of the handles and tabs and the positions of the fulcrums so as to work effectively.

Second, the force of the two continuous levers is transmitted to the opposite end (tip) across the fulcrum of the tab, which is the final point of action, so that the lid can be pushed down without loss. Is preferably fixed. In the case of a conventional tab, a lateral notch 13 of the tab clasp is deeply formed beyond the clasp 12 in order to easily catch the proximal end of the tab. As a result, in the first stage of raising the tab, the position of the fulcrum also moves slightly upward,
It loses the power to push down the can lid. In the case of a tab using two levers, it is not necessary to consider such a loss of force, and it is preferable to fix the fulcrum of the tab and concentrate all the forces at the action point.

The folded handle constructed as described above is raised, and it is pushed over the edge (winding portion) of the end panel to the outside of the can and pushed down (), and the edge serves as a fulcrum (fulcrum I). By using it as a lever, the rotating shaft (connecting part) with the handle at the end of the tab attached serves as the point of action and pushes up the end of the tab (). As a result, at the same time, the tab continuously works as a second lever, and the opposite end (tip) across the fulcrum (fulcrum II) becomes the final point of action, pushing down the lid surrounded by the score line notches ( ), Open the can by breaking. In this way, by continuously operating the two levers, the can opening operation can be performed with a light force (FIG. 1 is a schematic diagram showing the principle).

[Embodiment] An embodiment will be described with reference to the drawings. FIG. 2 is a plan view of an embodiment of the present invention, FIG. 3 is a plan view of an embodiment in which a tab end is used as it is as a shaft without using a rotary shaft when connecting a tab and a handle, and FIG.
Is an enlarged cross-sectional view of the connecting portion. FIG. 5 is a plan view of the case where the can open tab of the present invention is attached to the end panel, and FIG. 6 is a plan view of the case where the open can tab of the present invention is attached to the end panel. 7 and 8 are schematic sectional views (longitudinal sectional views) showing the operating procedure of the can opening tab of the present invention (however, the handle and the tab are side views for convenience of explanation). Exist).

In the embodiment shown in FIG. 2, a handle 9 which can be folded over the tab is attached to a terminal end 11 of a tab 10 of a tab non-separating type which is opened by using one conventional lever, by a rotary shaft 14. The tab 10 and the handle 9 are connected. that time,
The handle 9 is prevented from moving freely by making the rotating shaft 14 a little stiff.

The connecting portion between the tab 10 and the handle 9 has a rotary shaft 14
It doesn't have to be, so it can rotate freely, so the end of the tab 1
1 may be used as a shaft as it is, and the mounting portion 18 of the handle may be formed into a ring or a cylindrical shape and mounted so as to be rotatable around the shaft (FIGS. 3 and 4).

Further, when the tab 10 is attached to the end panel 7, fixing the fulcrum (fulcrum II) 15 transmits the force to the point of action without loss. Therefore, when the conventional stopper 12 is used, The notch 13 should not exceed the stopper plate 12 (do not exceed the chain line in FIG. 5). Alternatively, the stopper 12 is not used, but the stopper 12 is attached by the rotating shaft and the bearing 17 (FIG. 6).

7 (a) (b) (c), FIG. 8 (d)
(E) and (f) show the operating procedure of the opening tab for continuously operating the two levers. The operating procedure is as follows: (a) (Fig. 7 (a)): on the tab 10 Raise the folded handle 9 and move it over the edge (winding portion) 2 of the end panel and fold it to the outside of the can. (B) (FIG. 7 (b)): When the handle 9 is pushed down (),
The edge 2 serves as a fulcrum (fulcrum I), and an upward force is applied to the terminal end 11 of the tab having the rotating shaft 14 () (first lever). At the same time, a downward force acts on the opposite end (tip) 16 across the fulcrum 15 (fulcrum II) of the tab () (second lever). (C) (FIG. 7C): When the handle 9 is pushed further down,
Due to the double levers, the opposite ends (tips) 16 with the fulcrum of the tab interposed therebetween push down and break the lid portion 8 surrounded by the score line 19 of the end panel 7. (D) (FIG. 8 (a)): Raise the handle 9 and pull it up, push down the broken lid 8 further deeply to open it. (E) (FIG. 8E): The tab 10 is returned to its original position. (F) (FIG. 8 (f)): The handle 9 is returned to the original position.

[Effects of the Invention] Since the present invention is configured as described below, it has the effects described below.

[0019] A tab that is not separated by a tab that is opened by using one conventional lever is attached to a terminal of a tab that can be folded on the tab as another lever and connected.
Since it functions as two continuous levers, the force required is a fraction of that of a conventional tab that uses a single lever, depending on the length of the tab and the handle and the positional relationship between the fulcrum. Is reduced to.

As described above, with the tab for opening a can using the two levers, the can opening operation of the beverage can can be performed safely and reliably by anyone with a light force.

The end of the tab can be raised by not using the handle as a lever but raising it as it is. Also, even if you do not go to the place to break the lid, use the handle as a lever until you raise the tab a little and then raise the handle, or raise the tab directly with your fingers and raise it to open the can. You can also

The handle is in a folded state before use,
Since the outer shape and size are almost the same as the conventional tab,
Beverage canning process in the factory is also possible as before.

Further, since the handle is folded after use, it is no different from the conventional tab.

[Brief description of drawings]

FIG. 1 is a schematic view (longitudinal sectional view) showing the principle of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a plan view showing an embodiment of the present invention (when a rotary shaft is not used for a connecting portion of a tab and a handle, and a tip of the tab is used as a shaft as it is).

FIG. 4 is an enlarged cross-sectional view of a connecting portion of FIG.

FIG. 5 is a plan view of a case where the conventional opening plate is used to attach the can opening tab of the present invention to the end panel.

FIG. 6 is an enlarged cross-sectional view of the case where the opening tab of the present invention is attached to the end panel using a rotating shaft and a bearing.

[Figure 7]

FIG. 8 is a schematic view (longitudinal sectional view) showing an operating procedure of a tab for opening a can using a double lever.

[Explanation of symbols]

1 first lever 2 fulcrum I, edge of end panel (wrapping portion) 3 connecting part (point of action of first lever) 4 second lever 5 fulcrum II 6 opposite end across fulcrum II (second 7) Terminal panel 8 Lid part (portion surrounded by score line) 9 Handle (first lever) 10 Tab that uses one conventional lever (separate lever) (second lever) 11 Tab End 12 Tab Stop 13 Tab Stop Side Cut 14 Rotation Shaft (Coupling Part, First Lever Point of Action) 15 Tab Support (Support II) 16 Opposite Ends with Tab Support (Tip, point of action of second lever) 17 Rotation shaft and bearing (attachment to tab end panel) 18 Handle attachment part (center of tab end) 19 Score line At leverage and action point of lever Show power

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mari Morita 101 Izumo Ryote Honmachi, Kita-ku, Kyoto

Claims (2)

[Claims] 1. The first lever (1) is pushed down ().
Then, a force is applied to the lever connecting part (3) through the fulcrum I (edge) (2) to push up the second lever (4) (), and at the same time, the fulcrum II (5) is sandwiched between the opposite ends. (6) becomes the final point of action, and the lid (8) is pushed down () to open the can.
A tab for opening a beverage can that operates two levers in succession. 2. A tab (10) of a non-separable tab type which is opened by using one conventional lever is used as a second lever (4), and a first lever (10) is attached to the end (11) of the tab. Attaching the handle (9) used as 1) and connecting it, the tab (10)
The tab for opening a beverage can according to claim 1, which is adapted to be folded over.