JP2020172271A - Can opener and method of opening can using the same - Google Patents

Abstract

To provide means to solve problems that, when opening a can using a prior art can opener making use of a principle of a lever, contents of the can spills out and soils the surround because the can opening becomes an instant opening with a quick movement due to a fact that a tab is pulled up by a user who holds the can at a position of a can peripheral edge or the vicinity of the can peripheral edge as a supporting point, and that a hand which holds the can may get hurt with the can lid because the can opening may be the quick movement.SOLUTION: A can opener of this invention comprises: a fist front face 5 including a hook part 4 that hooks a tab 15 attached to an easy-open lid 8; a bottom face 7 leading to the first front face 5; and a pressing part 3 held and press-operated by fingers when opening the easy-open lid 8 upward away from the hook part 4. The bottom face 7 faces the easy-open lid 8 when the first front face 5 is disposed toward the tab 15 that is stood at a substantially right angle in advance, and is bent in a separating direction away from the easy-open lid 8 as advancing reward in a direction of separating away from the tab 15.SELECTED DRAWING: Figure 1

Description

The present invention relates to a can opener that opens an easy open lid of a fully open end easy open can.

The easy-open lid of an easy-open can has a score (cut groove) all around the surface of the lid, and the tab fixed to the lid with rivets is pulled up so that the entire lid follows the score (cut groove). It is opened.
Conventionally, as a can opener for opening an easy-open can, a pull-top tab is hooked on a rod-shaped L-shaped main punch with the periphery of the can as a fulcrum, and a handle extended to the main punch is pulled up to open (for example, Patent Document 1). There is.
In addition, there is a case in which a tab-pulling tongue piece and a rolling portion are provided on the outer peripheral surface having a circular shape, and the upper surface of the can is rolled to open (for example, Patent Document 2).
Further, there is a tube or a columnar body in which an engaging protrusion provided in the center of the main body is engaged with a hole of a tab and a handle provided at one end of the main body is rotated to open (for example, Patent Document 3).

Japanese Unexamined Patent Publication No. 10-175699 Japanese Unexamined Patent Publication No. 2004-59099 Japanese Unexamined Patent Publication No. 8-295339

In the case of Patent Document 1, a pull-top pestle is provided with a dentate recess and a can peripheral edge as a fulcrum.
If you lift the grip that connects the pull-top tab to the main punch and open it all at once, it is not easy to use because it requires more hand force to hold the can than the opening force of the opener.
Also, since the can opens in the direction of the hand holding the can, depending on how the can is held, the can can be opened.
There is a problem that the holding hand leads to injury due to the open lid.
Furthermore, there is a problem that the hand holding the can cannot respond to changes in the opening force and the contents may spill.

Further, in the case of Patent Document 2, as an opening operation, the tongue is inserted into the ring of the tab.
It is said that a piece is inserted and the rolling part is rotated on the can lid with the gripping part, but when the rotating part is rotated, the rolling part is circular and the contact surface with the can lid is small, so the rolling part and the can lid are connected. There is a safety issue in that the contact surface slips and the opener moves unexpectedly.

Further, in the case of Patent Document 3, it is stated that the engagement protrusion of the main body is engaged with the hole of the ring and the handle is rotated to wind up the lid of the pull top, but it is too large to wind up the lid of the easy open can. Power is required and the number of users is limited.
Furthermore, there is a problem that the lid wound up after opening bounces off the engaging protrusion and the surroundings are polluted with the contents.

Further, not limited to Patent Document 3, the conventional easy-open can opener cannot hold the lid after opening, the lid comes off from the opener, and the contents attached to the lid stain the surrounding area.

The present invention attempts to solve the problems of such a conventional configuration.
The purpose of this can opener is to make the opening of the lid safe and easy, and to improve convenience.

The present invention is a can opener that opens an easy open lid of an easy open can in order to achieve the above object, and has a first front surface and a first front surface having a hooking portion for hooking a tab attached to the easy open lid. It has a bottom surface that connects to it, and the bottom surface faces the easy-open lid when the first front surface is placed toward the tab that is raised at a substantially right angle in advance, and the easy-open lid is oriented away from the tab. It is configured to have a curved shape in the direction away from.

In addition, the bottom surface has a shape curved in a direction away from the easy-open lid behind the position advanced by a predetermined dimension from the first front surface.

Furthermore, the length of the path in the cross section of the bottom surface has a shape larger than the diameter of the easy open lid.

Further, above the hooking portion, a pressing portion that is pressed by a finger when opening the easy open lid is provided, and the pressing portion has a shape that protrudes forward from the first front surface.

Further, the pressing portion is connected to the upper end of the first front surface and extends forward at a substantially right angle to the first front surface, and the pressing portion is connected to the front end of the lower surface and extends upward at a substantially right angle to the lower surface.
The front surface, the second upper surface connected to the upper end of the second front surface and extending rearward at a substantially right angle to the second front surface, and the back surface connected to the rear end of the second upper surface and extending downward at a substantially right angle to the second upper surface. And, it is a configuration having.

Further, before opening the can, a tab raising means for raising the tab at a substantially right angle to the easy open lid is provided, and the tab raising means is an insertion groove provided on the second upper surface near the second front surface of the pressing portion. It is a composition

Further, the hooking portion is composed of a support column provided on the first front surface at a right angle to the first front surface and a substantially square flat plate provided at the tip of the support column at a right angle to the support column. It has a structure of.

Further, it is a can opening method for opening an easy open lid provided with a tab of an easy open can, in which the tab is raised in advance so as to be substantially orthogonal to the easy open lid, and either of claims 1 and 2. Place the can opener described in the above on the easy open lid so that the first front surface faces the tab, and with the hooked part hooked on the tab, bring the curved surface and the easy open lid into contact with the can opener. This is a can-opening method in which the can is tilted backward.

As described above, according to the can opener of the present invention, the tab is hooked on the hooking portion on the first front surface, and the main body is tilted away from the tab by the pressing portion to press the easy open lid on the bottom surface. Since the easy open can is fixed and the tab is pulled up, a stable opening can be made, which has the effect of preventing the contents of the easy open can from spilling and polluting the surrounding area.

In addition, the easy open lid can be opened in the opposite direction from the hand holding the easy open can, and the hand holding the easy open can does not come into contact with the easy open lid, which has the effect of improving safety and convenience. ..

Furthermore, since the pressing part is installed on the upper part of the main body in a protruding shape with the second front surface in front of the first front surface, it is easy to hold the pressing part when opening the easy open lid, and the main body can be attached to the easy open lid. It has the effect that it can be easily tilted backward and rotated.

In addition, the length of the path in the cross section of the bottom surface is larger than the diameter of the easy-open lid, which has the effect of facilitating and ensuring the opening operation from the initial opening to the disconnection.

Also, as a means to raise tabs
Since an insertion groove is provided on the second upper surface near the second front surface of the pressing portion, it is easy and reliable by inserting the tab into the insertion groove and tilting the can opener forward in the direction of raising the tab. It has the effect that the tab can be raised 90 degrees with respect to the easy open lid.

Furthermore, by making sure that the tab is raised at 90 degrees, the cut end of the easy open lid is bent downward at a right angle from the rivet part where the easy open lid and the tab are fixed, so that the score is cut.
In addition, the first front surface and the bottom surface extending rearward at a substantially right angle from the lower end of the first front surface can be bent downward at a right angle by opening with the surface of the easy open lid and the tab position maintained at 90 degrees. By applying a force that pulls up vertically to the cut end of the easy open lid, it becomes easy to tear the easy open lid from the score (cutting groove).

In addition, the tab raising means for raising the tab and the hooking part for hooking the tab are
Since it is placed on the front side of the can opener, the tab raised by the tab raising means can be hooked on the hook part and the easy open lid can be opened by continuing the operation, so the tab can be raised. A series of continuous operations from to opening the can is easy and smooth.
In addition, the can opener has a self-supporting bottom surface that makes it easy to place it on the easy-open lid, and the tab is pulled up while pressing the easy-open lid downward with the curved bottom surface due to the opening operation. Easy open Open the lid. At this time, until the opening of the can is completed, the position of the fulcrum during the opening operation moves backward at the same time as the opening position of the easy open lid, which has the effect of enabling stable opening operation.

In addition, a substantially square flat plate is provided at the tip of the support of the hooking part, so that the tab can be easily hooked, and the edge of the tab is caught by the flat plate when the easy open lid is opened, so that the tab does not come off.
Furthermore, even when the easy-open lid is separated from the easy-open can, the tab can be opened while pressing the flat plate of the hook with your thumb, so the tab does not come off from the hook, and the contents attached to the easy-open lid can be used to cover the surrounding area. It has the effect of not getting dirty.

It is a perspective view of the can opener in one Embodiment of this invention. (A) It is a right side view of the can opener. (B) It is a front view of the can opener. (C) It is a rear view of the can opener. (D) It is a bottom view of the can opener. (e) It is a top view of the can opener. (A) It is a side view of the easy open can which raised the tab before placing the can opener on the easy open lid. (B) It is a side view which hooked a tab on the hook part of the same can opener, and placed it on the easy open lid. (A) It is a state diagram which shows the state of the initial opening when the easy open lid is opened by the same can opener. (B) It is a state diagram which shows the state in the middle of opening when opening the easy open lid with the same can opener. (C) It is a state diagram which shows the state just before being torn and separated from a can when the easy open lid is opened by the same can opener. (A) It is a state diagram which shows the state which the easy open lid was separated from the easy open can in the same can opener. (B) It is a state diagram which shows the cross section of the can opener. It is a state diagram showing the state after the opening of the easy open lid is completed in the same can opener. (A) It is a state diagram which shows the state which the tab is inserted in the insertion groove of the same can opener. (B) It is a state diagram which shows the state which the tab was raised at 90 degrees in the insertion groove of the same can opener.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The present invention is not limited to this embodiment.

First, the configuration of the can opener according to the embodiment of the present invention is shown in FIGS.
This will be described with reference to 6.
Here, FIG. 1 is a perspective view of the can opener according to the embodiment of the present invention.
2 (a), (b), (c), (d), and (e) are a right side view, a front view, a rear view, a bottom view, and a plan view of the can opener.
FIG. 3A is a side view of an easy-open can in which the tab is raised at 90 degrees due to the opening.
FIG. 3B is a side view in which a tab is hooked on the hooked portion of the can opener and placed on the easy open lid.
FIGS. 4A, 4B, and 4C are state diagrams showing the state of the opening process of the easy open lid.
FIG. 5A is a state diagram in which the easy-open lid is separated from the easy-open can, and FIG. 5B is a cross-sectional view showing the length of the journey.
FIG. 6 is a state diagram when the opening of the easy open lid is completed.

Here, the main can opener 1 opens an easy open lid (hereinafter referred to as a lid) of an easy open can (hereinafter referred to as a can).

As shown in FIG. 1, the can opener 1 is composed of a main body 2 and a pressing portion 3.

Further, as shown in FIGS. 2A and 2B, the main body 2 includes a first front surface 5 provided with a hook portion 4, a first upper surface 6 and a bottom surface 7, and the first front surface 5 is a can opener 1.
This is the surface facing the tab raised at 90 degrees when the lid 8 is placed on the lid 8.
Further, the bottom surface 7 is connected to the lower end of the first front surface 5 at a substantially right angle and is formed behind the first front surface 5, and is connected to the rear of the flat portion 7a and curved in a direction away from the lid 8. It is composed of a curved portion 7b.

Further, the pressing portion 3 has a substantially rectangular parallelepiped shape, has a magnet 10 and an insertion groove 11 for raising a tab, is provided on the upper part of the main body 2, and the can opener 1 is rotated by the user. As shown in 2, the lower surface 12 and the second front surface 1
It is formed of 3 and a second upper surface 14 and a back surface 9.
Specifically, the lower surface 12 is connected to the upper end of the first front surface 5 and is formed forward at a substantially right angle to the first front surface 5.
Further, the second front surface 13 is connected to the front end of the lower surface 12 and is formed upward at a substantially right angle to the lower surface 12, and the second upper surface 14 is connected to the upper end of the second front surface 13 and is connected to the second front surface 13.
It is formed at a right angle to the rear.
Further, the back surface 9 is connected to the rear end of the second upper surface 14, is formed downward at a substantially right angle to the second upper surface 14, is connected to the first upper surface 6, and the first upper surface 6 extends rearward and the curved portion 7b.
It is formed by connecting with the upper end of.
The back surface 9 is formed in a shape provided in front of the upper end of the curved surface portion 7b.

Further, the hooking portion 4 hooks the raised tab 15.
Specifically, as shown in FIG. 2, the hooking portion 4 has a support column 4a provided on the first front surface 5 substantially at right angles to the first front surface 5 and a support column 4a substantially at right angles to the support column 4a. It is composed of a substantially square flat plate 4b provided at the tip of the above.
In the present embodiment, the flat plate 4b of the hooking portion 4 has a substantially quadrangular shape, but the present invention is not limited to this, and may be a circular shape, a semicircular shape, or an elliptical shape.
Further, the hook portion 4 may have an L-shaped integrally formed hook shape.

Further, as shown in FIG. 2A, the magnet 10 is for storing the can opener 1. Specifically, it is provided on the side surface 16 of the pressing portion 3 in FIG. 2A for storage attached to a steel portion such as a refrigerator when the can opener 1 is not used.
Further, although the left side view is not shown because it is symmetrical with FIG. 2 (a) of the right side view, the magnet 10 is also provided on the side surface 16 of the left side view (omitted).
Further, in the present embodiment, the magnet 10 is provided on the left and right side surfaces 16 of the pressing portion 3, but the present invention is not limited to this, and the magnet 10 may be provided on either side.
Further, it may be provided at another position such as the main body 2.

The operation of opening the lid 8 will be described with reference to FIGS. 3 to 6.
Here, FIG. 3A shows an easy open can 18 in which the tab 15 fixed to the lid 8 with a rivet 17 is raised at 90 degrees in advance with a finger or the like.
Next, as shown in FIG. 3B, the tab 15 is hooked on the hooking portion 4, and the first
The can opener 1 is placed on the lid 8 on the front surface 5 and the flat portion 7a.
Then, as shown in FIG. 4A, the positions held by the fingers when operating the pressing portion 3 of the can opener 1 are shown. For example, the thumb 19, index finger 20, and middle finger 21 hold the pressing portion 3, and as shown by the arrow in the figure, the main body 2 is tilted backward in the direction of the arrow away from the tab 15 and rotated to set Pa as a fulcrum. As a result, the tab 15 is pulled up and the lid 8 is initially opened.

Further, when the main body 2 is tilted backward, the lid 8 is torn toward the fulcrum of the moved Pb as shown in FIG. 4 (b).
Further, when the main body 2 is tilted backward, as shown in FIG. 3C, the fulcrum position for opening the lid 8 moves to the rear fulcrum Pc, and the lid 8 in front of this fulcrum Pc is torn. become.
The position of the fulcrum Pc indicates the position immediately before the lid 8 is separated from the can 18.
Further, when the main body 2 is tilted backward, the lid 8 becomes the can 18 as shown in FIG. 5 (a).
Completely separated from.

Further, as shown in FIG. 5B, it is a cross-sectional view of the can opener 1 cut along a plane parallel to the rotation direction of the can opener 1. The arrow portion a in the figure indicates the length of the bottom surface 7. Further, the arrow portion b indicates the length of the diameter of the lid. As shown in the figure, the length of the route (a) is larger than the diameter (b) of the lid 8.
With one opening operation, it can be surely finished until the opening is completed. Therefore, there is an effect that the opening operation can be performed easily, safely and stably.

Further, as shown in FIG. 6, by tilting and opening the can opener 1 in a direction away from the hand holding the can 18, the hand holding the can 18 and the lid 8 do not come into contact with each other, so that the opening is safe and easy. It can be done.
Although FIG. 6 shows the opening operation with the right hand, the can opener 1 is symmetrical, and the opening operation with the left hand is also the same.

Further, the operation after opening will be described.
As shown in FIG. 5A, since the second front surface 13 is provided in front of the first front surface 5, the lid 8 can be separated while pressing the hook portion 4 with the thumb 19 when opening.
Further, FIG. 6 shows a state in which the lid 8 is completely separated. In this way, it is shown that the lid 8 can be held through the tab 15 so as not to come off.

Further, a tab raising means for raising the tab 15 will be described.
In the above explanation, it is assumed that the tab 15 is raised at 90 degrees with a finger. However, it may be difficult to raise the tab 15 with your fingers.
In the present invention, as shown in FIG. 2, as a tab raising means, an insertion groove 11 is provided on the second upper surface in the vicinity of the second front surface 13 of the pressing portion 3.

Therefore, in order to bring the tab 15 of FIG. 3A raised at 90 degrees with respect to the lid 8, first, the tab 15 is inserted into the insertion groove 11 as shown in FIG. 7A. Then, by tilting the can opener 1 forward on the side where the tab 15 is fixed and raising the tab 15 at 90 degrees as shown in Fig. (B), the initial notch in the lid 8 can be easily made. You can do it with certainty.

Also, there is an illustration on the lid that raises the tab with your fingers when opening the easy open can, but it seems that you will raise it with your nails and fingertips.
The can opener 1 described above improves convenience for users who have difficulty using their nails.

In the present embodiment, the insertion groove 11 is provided in the pressing portion 3, but the present invention is not limited to this, and the insertion groove 11 may be provided in the main body 2.
In addition, the shape of the insertion groove 11 is 2 mm in height and wide in order to securely insert the tab.

It should be 24 mm and the depth should be about 20 mm.
In addition, the insertion groove has a tapered shape to make it easier to insert the tab.
The wall thickness from the contact surface between the lid 8 and the opener 1 to the insertion groove is 1.0 mm.

It should be about 2.0 mm.
Further, the thinner the wall thickness, the easier it is to insert it into the tab 15, but the thickness is considered in consideration of durability.

1 Can opener 2 Main body 3 Pressing part 4 Hooking part 4a Strut 4b Flat plate 5 1st front surface 6 1st upper surface 7 Bottom surface 7a Flat part 7b Curved part 8 Easy open lid 9 Back surface 10 Magnet 11 Insertion groove 12 Bottom surface 13 2nd front surface 14th 2 Top surface 15 tabs (ring)
16 Side 17 Rivet 18 Easy Open Can 19 Thumb 20 Index Finger 21 Middle Finger Pa Support Pb Support Pc Support

Further, it is a method of opening an easy open lid provided with a tab of an easy open can, in which the tab is raised in a direction substantially orthogonal to the easy open lid in advance, and the can opener according to claim 1 is easily opened. A can opening method in which the first front surface is placed on the lid so that it faces the tab, and the can opener is tilted backward while the curved surface and the easy open lid are in contact with the hooked portion hooked on the tab. Is.

Claims (8)

Easy open can opener that opens the easy open lid
A first front surface having a hooking portion for hooking a tab attached to the easy open lid, and
With a bottom surface connected to the first front surface,
The bottom surface faces the easy-open lid when the first front surface is arranged toward the tab raised at a substantially right angle in advance, and separates from the easy-open lid as it advances backward, which is a direction away from the tab. A can opener that is characterized by being curved in the direction. The can opener according to claim 1, wherein the bottom surface is curved in a direction away from the easy open lid behind a position advanced rearward by a predetermined dimension from the first front surface. The can opener according to claim 1 or 2, wherein the length of the path in the cross section of the bottom surface is larger than the diameter of the easy-open lid. Above the hooking portion, a pressing portion that is pressed with a finger when opening the easy open lid is provided.
The can opener according to any one of claims 1 to 3, wherein the pressing portion is formed in a shape protruding forward from the first front surface. The pressing part is
A lower surface connected to the upper end of the first front surface and extending forward at a substantially right angle to the first front surface,
A second front surface connected to the front end of the lower surface and extending upward at a substantially right angle to the lower surface,
A second upper surface connected to the upper end of the second front surface and extending rearward at a substantially right angle to the second front surface,
A back surface connected to the rear end of the second upper surface and extending downward at a substantially right angle to the second upper surface,
The can opener according to claim 4, wherein the can opener is characterized by having. Before opening the can, a tab raising means for raising the tab at a substantially right angle to the easy open lid is provided.
The can opener according to claim 4 or 5, wherein the tab raising means is an insertion groove provided on the second upper surface in the vicinity of the second front surface of the pressing portion. The hooking portion includes a support column provided on the first front surface at a substantially right angle to the first front surface and a substantially quadrangular flat plate provided at the tip of the support column at a substantially right angle to the support column. The can opener according to any one of claims 1 to 6, wherein the can opener comprises. An easy-open can opening method that opens the easy-open lid with tabs.
Raise the tab in advance in a direction substantially orthogonal to the easy open lid,
The can opener according to any one of claims 1 and 2 is placed on the easy-open lid so that the first front surface faces the tab.
With the hooked part hooked on the tab,
A can opening method characterized by tilting the can opener backward while bringing the bottom surface into contact with the easy open lid.