JP2000335576A - Pull tab for top usable with less power - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily open with the end of a pull tab caught by a finger and to open a drink can with a less force by a method wherein the tip of the pull tab for opening a spout for the drink can is formed in a triangular shape. SOLUTION: For a drink can, the can main body, a pull tab 1 and a pin 2 are made of the same quality of steel. The pull tab 1 develops a working utilizing the theory of lever with a point of contact where a connecting part 1b and the pin 2 are in contact being a fulcrum. In this case, a point of force is applied to bend the pull tab backward so that a finger can be fit easily to the end 1a of the pull tab and the pull tab can be turned easily. Then, the first point whereto the working is applied is the front end 1c of a triangular shape whereon a force of the finger is concentrated. On the other hand, a groove 3b is formed at a flat top 3 of the can 4, and the groove 3b is ruptured when the force is applied to a spout portion 3a of the flat top and a spout is opened. Thereby, the force of a finger applied to the end 1a of the pull tab is concentrated onto the front end 1c of the triangular shape, and the spout can be opened easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for opening a drink can that does not require great finger force.

[0002]

2. Description of the Related Art A conventional mouthpiece of a drink can is opened using a tab which utilizes the principle of leverage.

[0003]

However, since the conventional pull-top tab acts on the central region of the mouth portion of the can, the finger pressure is spread in all directions from the point of application to the entire groove when the tab is opened. However, the breaking action is small, and a large finger pressure is required.

[0004] For this reason, there have been problems such as the fingertip being hurt and the nail being damaged or broken.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a type in which the distal end of the tab is easily operated by a finger.

Further, by changing the position of the tab and evolving its shape, the pressure of the finger is not diffused but acts on the entire area.

Therefore, the opening of the drink can with a small finger pressure is realized.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The tab according to any one of claims 1 to 4 of the present invention is provided with a screw on the plane of a drink can, and performs its function.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view when the screw of the present invention is provided in a drink can. Conventionally, drink cans are mainly made of aluminum and steel. However, steel is mainly used now because aluminum dissolves in a liquid.

The material of the tab 1 and the screw 2 is made of the same steel in consideration of recycling of the can.

The tab has a function using the contact point between the connection portion 1b and the screw 2 as a fulcrum and applying the lever principle.

The point of force at this time has a curved shape so that a finger can be easily attached at the end 1a of the tab and that it can be easily rotated after the can is opened.

The first point of action is the tip 1c of the triangular portion where the finger pressure converges.

The ratio between the distance from the fulcrum of the tab to the first point of action 1c and the distance from the fulcrum to the power point 1a is almost the same as the ratio of the conventional tab, and uses the leverage principle. .

Accordingly, the size of the spout portion 3a is slightly reduced according to the distance from the fulcrum to the tip 1c of the tab, and the position of the fulcrum is far away from the center of the plane 3 of the can.

The flat surface 3 of the can 4 has a groove 3b, and when pressure is applied to the spout portion 3a in the inner area, the groove 3b is broken and becomes a spout.

The groove has a shallow region and a deep region, and the groove is broken in the deep region. At this time, the shallow region of the groove is located in a region near the center of the can and is not completely broken, thereby preventing the broken drinking spout portion 3a from falling into the can.

The pressure of the finger when opening the can firstly acts on a region near the edge of the can of the drinking mouth portion 3a, and the pressure on the nearby groove at this time is such that the finger pressure is diffused. It is quite large compared to conventional tabs that work.

Thereafter, the point of action is the contact point between the bottom surface of the triangular portion and the spout portion 3a, and shifts toward the center of the can in accordance with the breaking of the groove 3b.

At this time, the pressure of the finger works without being diffused.

From the above, the mouth of the drink can can be opened with a small finger pressure.

FIG. 2 is a perspective view when the tab is rotated after opening the can. When the tab 1 is returned to the initial position after use, the triangular portion of the tab 1 hinders the drink. For this reason, next, the side of the end 1a of the tab is pressed with a finger, so that the screw 1 serves as a fulcrum.
To keep the triangular portion of the tab 1 away from the spout 5.

It is preferable to simply indicate on the plane 3 of the can the indication of the arrow to be rotated and the method of use.

[0024]

As described above, according to the present invention, the force of the finger is easily applied, and the force of the finger is intensively applied. Can realize the opening of the drink can.

[Brief description of the drawings]

FIG. 1 is a perspective view in which a tab is provided on a plane of a drink can.

FIG. 2 is a perspective view in which a used tab is rotated.

[Explanation of Signs] 1 Tab 1a Tab end 1b Tab connection 1c Tab tip 2 Screw 3 Can flat surface 3a Drinking portion 3b Groove 4 Drink can 5 Drinking mouth

Claims (4)

[Claims] 1. A pull-top tab, wherein the shape of the tab for opening the mouth of the drink can is triangular. 2. The pull-top tab according to claim 1, wherein a connection point between the tab and the can is far away from a center point of the plane of the can. 3. The pull-top tab according to claim 1, wherein the shape of the tab applied by the finger is warped. 4. The pull-top tab according to claim 1, wherein the tap is rotated after the opening.