JP2015137132A - Can-top and rotary tab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems, for example, in a conventional can with pull-top tab, it is difficult to lift up a tab and requires force, so that it is difficult to open a can-top for a left-handed person, and when applying force too much, a content in the can is scattered, and it is difficult for elderly, women, and children who have weaker force, and it is impossible to close the lid during use, unlike a PET bottle.SOLUTION: A tab is a rotary type, and an air hole is provided on a can-top for reducing load required for opening a drinking port, and easiness of tab lifting up and reduction of force required for opening the tab, are achieved. In addition, by applying pressure by fingers or palm auxiliary, regardless of a dominant hand, opening/closing of the tab is facilitated, and the tab is used as a lid, resulting in enhanced possibility of reuse.

Description

    The present invention relates to a can lid and a rotary tab.

  Conventionally, the pull-top type is the most convenient can opening method and is used regardless of age. This is because a fingertip is inserted into the gap between one end of the tab and the can lid panel portion, and the other end of the tab is pushed down by pulling up the one end of the tab, and the opening forming portion notch provided in the panel portion of the can lid is broken. It is a structure and it is necessary to hook a tab with a toe first. However, since the gap between one end of the tab and the panel portion of the can lid is narrow and only a few fingertips can be inserted, the structure is difficult to open for elderly people, women, and children with weak power.

  Focusing on the fact that the gap between one end of the tab and the panel portion of the can lid is narrow and only a few fingertips can be inserted, a proposal has been made to solve by widening the gap between the one end of the tab and the panel portion of the can lid ( For example, see Patent Document 1 and Patent Document 2.)

  There has also been proposed a structure in which an inclination is provided in the panel portion of the can lid and the tab is rotated to break the opening forming portion cut provided in the panel portion of the can lid (see, for example, Patent Document 3).

JP 2000-118531 A JP 2011-37467 A JP 2012-91870 A

      In beverage cans adopting a generalized pull top tab, the opening forming part is one place, and when the liquid of the contents is discharged, the opening forming part is widened to take in the same volume of air into the can. As a result, considerable pressure is required to break and considerable finger force is required to lift the tab.

    When trying to suck directly from the opening forming part, the liquid of the contents to be sucked may interfere with the air entering the can instead of the mouth, thereby impairing the taste.

    When trying to lift a tab with a finger with a long nail or a finger with nail art, it may be difficult to operate the tab, and a special auxiliary tool may be required.

    As a result of the considerable finger force required to lift the tab, the can may move when opened and the contents may erupt.

    In order to efficiently break the wide opening forming portion, the fold is shifted from the position of the tab. As a result, it is easy for a right-handed person to open, but it is difficult for a left-handed person to open.

    Beverage cans that use generalized pull-top tabs are discarded after use, leading to environmental degradation.

    The can lid and the rotary tab of the present invention are such that the can lid 2 and the rotary tab 3 on the top surface of the can 1 are rotatably coupled by a rivet B. C1 and an air hole forming part K1 are provided.

    The can lid and the rotary tab of the present invention increase the strength by making the periphery of the tab pedestal A of the rotary tab 3 into a bent structure or a curved structure centered on the rivet B.

    The can lid and the rotary tab according to the present invention include a reinforcing projection C2 in the contact portion with the tab base A in the opening forming portion C1, or a contact portion with the tab base A in the air hole forming portion K1. A reinforcing protrusion K2 is provided on the circumference of the rivet B and arranged with a height difference.

    The can lid and rotary tab of the present invention can be obtained by rotating the tab base A with a finger or palm around the rivet B along the surface of the can lid panel portion C of the can lid 2. When A comes into contact with the reinforcing protrusion K2 provided on the air hole forming portion K1, pressure is applied to the reinforcing protrusion K2, the air hole breaking cut K3 is broken, and the air hole fold K4 is bent, thereby forming the air hole forming portion K1. , And the tab pedestal A comes into contact with the reinforcing protrusion C2 provided on the opening forming portion C1 to apply pressure to the reinforcing protrusion C2 to break the opening forming portion breaking notch C3 and fold the opening forming portion fold C4. Bend and push down the opening forming part C1.

    The can lid and the rotary tab of the present invention are provided with an air hole forming portion pressure protrusion P1 at a lower portion of the tab base A that contacts the air hole forming portion K1.

    The can lid and the rotary tab of the present invention are provided with an opening forming portion pressure projection P2 at a lower portion of the tab base A that contacts the opening forming portion C1.

    The can lid and the rotary tab of the present invention have a pressure protrusion receiving recess U at either the tip of the reinforcing protrusion K2 or the reinforcing protrusion C2, or the air hole forming portion K1 or the opening forming portion C1. Provide.

    The can lid and the rotary tab of the present invention are provided with a stopper recess D1 in the non-opening forming portion D corresponding to the air hole forming portion pressure protrusion P1, or the non-opening corresponding to the opening forming portion pressure protrusion P2. A stopper recess D2 is provided in the forming portion D.

    The can lid and the rotary tab of the present invention are provided with a lifting projection D3 in the non-opening forming portion D at a symmetrical position around the rivet B of the reinforcing projection K2, or the reinforcing projection C2 The raised protrusion D4 is provided in the non-opening forming portion D at a symmetrical position with the rivet B as the center, and is arranged with a height difference on the circumference with the rivet B as the center.

    The can lid and the rotary tab of the present invention are provided with a finger hook A3, a finger hole A4 or a friction projection A5 at least at one place on the upper surface of the tab base A.

    The can lid and the rotary tab of the present invention are provided with a plurality of reinforcing projections K2 on the air hole forming portion K1.

    In the can lid and the rotary tab of the present invention, a plurality of the reinforcing protrusions C2 are installed in the opening forming portion C1.

    In the can lid and the rotary tab of the present invention, a stopper recess K5 is provided in the air hole forming portion K1 corresponding to the air hole forming portion pressure protrusion P1, or an opening forming portion C1 corresponding to the opening forming portion pressure protrusion P2. Provide stopper dent C5 on

    The rotary tab of the present invention can use the tab base A as a pull-top type.

    The rotary tab of the present invention can increase the diameter of the rivet B and also serve as a reinforcement for the tab base A.

    The can lid and the rotary tab according to the present invention are configured such that the tab base A is rotated by a finger or a palm around the rivet B along the surface of the can lid panel portion C so that the tab base A is an air hole forming portion K1. A pressure is applied to the reinforcing projection K2 by contact with the reinforcing projection K2 provided on the side, and an additional pressure is applied with a finger or palm to break the air hole breaking notch K3 and the air hole fold K4 to fold the air hole. The forming portion K1 is pushed down, and the tab pedestal A comes into contact with the reinforcing projection C2 provided in the opening forming portion C1 and presses the tab pedestal A with a finger or palm, thereby applying pressure to the reinforcing projection C2. The opening forming portion breaking notch C3 is broken, the opening forming portion fold C4 is bent, and the opening forming portion C1 is pushed down.

    The rotary tab of the present invention matches the shape of the outer periphery of the air hole forming portion pressure protrusion P1 with the shape of the outer periphery of the hole when the air hole forming portion K1 is opened, and the opening forming portion pressure protrusion P2 Match the shape of the outer periphery with the shape of the hole when the opening forming portion C1 is opened, or provide a protrusion or packing PK1 and a protrusion or packing PK2 suitable for each opened hole on the back surface of the tab base A. Provide a lid function.

    The can lid and the rotary tab of the present invention have a pressure protrusion receiving recess U at either the tip of the reinforcing protrusion K2 or the reinforcing protrusion C2, or the air hole forming portion K1 or the opening forming portion C1. Provide.

    The can lid and the rotary tab of the present invention are provided with a guide groove M for guiding the tab base A.

      By separately opening the air hole, it is not necessary to take in air from the opening forming part for discharge, and as a result, it is not necessary to set the opening forming part widely, and the force for breaking is reduced.

    When trying to suck directly from the opening formation part, air is replenished from the air hole, so the liquid of the contents to be sucked does not interfere with the air at the mouth, and suction can be done with the same feeling as sucking with a straw And there is no loss of taste.

    Since it is easy to break, it is not necessary to lift the tab to apply force, and it can be opened by rotating the tab with your finger or palm, so it can be opened easily even with long nails, and a dedicated auxiliary tool can be used. do not need.

    When the opening forming part cut is broken, the content is less likely to jump out of the can.

    Both left and right rotations can be supported, and it can be right-handed or left-handed.

    The tab can have a lid function, and can be reused as it is.

FIG. 1 is an explanatory view showing a form of a can. FIG. 2 is a plan view of the upper can lid of the can. (Example 1) FIG. 3 is a plan view showing the rotating tab. (Example 1) FIG. 4 is a side view of FIG. (Example 1) FIG. 5 is a plan view showing the rotary tab. (Example 2) FIG. 6 is a side view of FIG. (Example 2) FIG. 7 is a plan view showing the rotation tab. (Example 3) FIG. 8 is a side view of FIG. Example 3) FIG. 9 is a side view of the rotary tab. (Example 4) FIG. 10 is a plan view of the can lid panel portion. (Example 5) FIG. 11 is a plan view of the rotary tab attached to FIG. (Example 5) FIG. 12 is an explanatory diagram in which the rotation tab of FIG. 11 is operated. (Example 5) FIG. 13 is a plan view of the opening forming portion. (Example 1) FIG. 14 is a side view of FIG. (Example 1) FIG. 15 is a plan view of the air hole forming portion. (Example 1) FIG. 16 is a side view of FIG. (Example 1) FIG. 17 is a plan view of the can lid panel portion. (Example 6) FIG. 18 is a plan view of the rotary tab attached to FIG. (Example 6) FIG. 19 is an explanatory diagram in which the rotation tab of FIG. 18 is operated. (Example 6) FIG. 20 is an explanatory diagram in which the rotation tab of FIG. 18 is operated. (Example 6) FIG. 21 is an explanatory diagram in which the rotation tab of FIG. 18 is operated. (Example 6) FIG. 22 is a plan view of the opening forming portion. (Example 7) FIG. 23 is a side view of FIG. 22 and is an explanatory view showing the relationship between the opening forming portion and the rotating tab. (Example 7) FIG. 24 is a plan view of the air hole forming portion. (Example 7) 25 is a side view of FIG. 24 and is an explanatory view showing the relationship between the air hole forming portion and the rotating tab. (Example 7) FIG. 26 is a plan view showing the rotary tab. (Example 7) FIG. 27 is an explanatory diagram illustrating an example of a reinforcing protrusion. (Example 8) FIG. 28 is a plan view in which a rotating tab is attached to the can lid panel portion. Example 9 FIG. 29 is a plan view of the rotary tab rotated from FIG. Example 9 30 is a cross-sectional view taken along line A-A ′ of FIG. 29. Example 9 FIG. 31 is a plan view of the back surface of the rotary tab. (Example 10) FIG. 32 is a cross-sectional view showing an example of a pressure protrusion receiving recess. (Example 11) FIG. 33 is a side view showing an example of the guide groove. (Example 12)

The can lid and rotary tab of the present invention will be described with reference to FIG.
A tab base A of the rotary tab 3 is attached by a rivet B to a can lid panel portion C of the can lid 2 of the can 1.

The can lid and rotary tab of the present invention will be described with reference to FIG. 2 showing the upper can lid of the can.
The can lid panel portion C is provided with a non-opening forming portion D, an opening forming portion C1 and an air hole forming portion K1, and the tab of the rotary tab 3 is provided in the non-opening forming portion D at or near the center of the can lid panel portion C. A pedestal A is attached by a rivet B.

  The opening forming portion C1 is reinforced by the reinforcing projection C2, and the boundary with the non-opening forming portion D is in contact with the opening forming portion breaking cut C3 and the opening forming portion fold C4, and the opening forming portion breaking cut C3 is broken. Then, the opening forming portion C1 and the non-opening forming portion D are connected only by the opening forming portion fold C4.

  The air hole forming portion K1 is reinforced by a reinforcing protrusion K2, and the boundary of the non-opening forming portion D is in contact with the air hole forming portion breaking cut K3 and the air hole forming portion fold K4, and the air hole forming portion breaking cut K3. Is broken, the air hole forming part K1 and the non-opening forming part D are connected only by the air hole forming part fold K4.

  By rotating the rotary tab 3 around the rivet B, the tab base A comes into contact with the reinforcing protrusion K2 of the air hole forming portion K1, and the reinforcing protrusion K2 is pushed down to form the air hole. The part breaking cut K3 is broken, and the air hole forming part fold K4 is bent.

  Further, by rotating the rotary tab 3 about the rivet B, the tab base A comes into contact with the reinforcing protrusion C2 of the opening forming portion C1, and the reinforcing protrusion C2 is pushed down to form the opening. The part breaking notch C3 is broken, and the opening forming part fold C4 is bent.

The can lid and rotary tab of the present invention will be described with reference to FIG. 3 showing the rotary tab.
The tab pedestal A comes into contact with the reinforcing protrusion K2 of the air hole forming portion K1 and pushes down the reinforcing protrusion K2. In order to push down the reinforcing protrusion K2 more effectively, the tab pedestal A Is provided with an air hole forming portion pressure projection P1.

  The tab pedestal A comes into contact with the reinforcing protrusion C2 of the opening forming portion C1, and pushes down the reinforcing protrusion C2. However, in order to push down the reinforcing protrusion C2 more effectively, the tab pedestal A An opening forming portion pressure protrusion P2 is provided.

FIG. 4 is a side view of FIG.
It shows that the air hole forming part pressure protrusion P1 or the opening forming part pressure protrusion P2 protrudes below the tab base A. If a certain strength can be secured, projections of various shapes such as a semi-circle and a cone can be formed.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 5 showing the rotary tab.
By providing one or more finger hooks A3 on the tab base A, the operability of rotation of the rotary tab 3 can be improved. The finger hook A3 may be a shape that fits the shape of a finger or a thumbscrew in addition to a simple protrusion.

FIG. 6 is a side view of FIG.
It shows that the finger hook A3 protrudes above the tab base A.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 7 showing the rotary tab.
The tab pedestal A can be provided with the finger hook A3, the friction projection A5, or the finger hole A4, so that the operability of rotation of the rotary tab 3 can be improved. The finger hole A4 is required to have a shape and a number in consideration of operability by providing a recess or opening a hole in the tab base A so that a finger can be inserted. Can be improved. Alternatively, by providing a large number of friction protrusions A5, the tab base A can be rotated while being pressed with a fingertip or palm.

  FIG. 8 is a side view of FIG.

The can lid and rotary tab of the present invention will be described with reference to FIG. 9 showing the side of the rotary tab.
The finger rest A3 is used as a reinforcing protrusion of the tab base A, and the tab base A effectively presses the reinforcing protrusion K2 and the reinforcing protrusion C2, and the air hole forming portion breaking notch K3 and the opening It is possible to facilitate breakage of the formation portion breaking cut C3.

The can lid and rotary tab of the present invention will be described with reference to FIG. 10 showing a plan view of the can lid panel portion C. FIG.
The rivet B can be provided in the non-opening forming portion D at a position closer to the opening forming portion C1 than the center of the can lid panel portion C. The non-opening forming part D is provided with the air hole forming part K1 and the opening forming part C1.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 11 showing a plan view of the can lid panel portion C. FIG.
When the rivet B is provided at a position closer to the opening forming portion C1 than the center of the can lid panel portion C, the position of the rivet B of the tab base A is deviated from the center of the tab base A, and the rivet B The air hole forming part pressure protrusion P1 side is longer than the opening forming part pressure protrusion P2 side, and the rotary tab 3 is rotated by providing the finger hook A3 on the air hole forming part pressure protrusion P1 side. While simplifying, the burden of the finger for fracture | rupture of the said air hole formation part fracture | rupture cutting | disconnection K3 and the said opening formation part fracture | rupture cutting | disconnection C3 can be reduced.

  FIG. 12 showing a plan view of the can lid panel portion C shows a state in which the tab base A in FIG. 11 is rotated and the air hole forming portion K1 and the opening forming portion C1 are pushed down.

The can lid and rotary tab of the present invention will be described with reference to FIG. 13 showing a plan view of the opening forming portion C1.
The opening forming portion C1 is provided with the reinforcing protrusion C2, and the opening forming portion fold C4 and the opening forming portion breaking notch C3 are in contact with the non-opening forming portion D.

The can lid and rotary tab of the present invention will be described with reference to FIG. 14 showing a side view of FIG.
The tab pedestal A moves along the reinforcing projection C2 of the opening forming portion C1 in the Y1 to Y2 direction of the arrow, and the opening forming portion fold C4 is bent.

The can lid and rotary tab of the present invention will be described with reference to FIG. 15 showing a plan view of the air hole forming portion K1.
The air hole forming portion K1 is provided with the reinforcing protrusion K2, and the air hole forming portion fold K4 and the air hole forming portion breaking cut K3 are in contact with the non-opening forming portion D.

The can lid and rotary tab of the present invention will be described with reference to FIG. 16 showing a side view of FIG.
The tab pedestal A moves along the reinforcing projection K2 of the air hole forming portion K1 in the direction of Y3 to Y4 of the arrow, and shows a situation where the air hole forming portion fold K4 is bent.

The can lid and rotary tab of the present invention will be described with reference to FIG. 17 showing a plan view of the can lid panel portion C. FIG.
In order to prevent and stabilize the rotating tab from being moved inadvertently, either one or both of the stopper recess D1 and the stopper recess D2 are provided in the non-opening forming portion D as necessary.

  In order to increase the pressure on the reinforcing protrusion K2, a lifting protrusion D3 is provided in a symmetric positional relationship with the reinforcing protrusion K2 around the rivet B of the non-opening forming portion D as necessary.

  In order to increase the pressure on the reinforcing protrusion C2, the lifting protrusion D4 is provided as a symmetric position relative to the reinforcing protrusion C2 with the rivet B of the non-opening forming portion D as the center.

The can lid and rotary tab of the present invention will be described with reference to FIG. 18 showing a state before use.
The air hole forming portion pressure protrusion P1 is stored in the stopper recess D1, and the opening forming portion pressure protrusion P2 is stored in the stopper recess D2.

  The stopper recess D1 and the stopper recess D2 can be provided not only for maintaining stability before rotating the tab but also for maintaining stability when the tab has been rotated.

  The stopper recess D1 and the stopper recess D2 rotate the tab when the air hole forming portion pressure protrusion P1 and the opening forming portion pressure protrusion P2 are set to the tab base A with the same distance relationship from the rivet B. It can be used in combination to maintain stability before turning and to maintain stability when the tab has finished rotating.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 19 showing a state in which the air hole forming portion K1 is opened immediately after the start of use.
When the opening forming portion pressure protrusion P2 passes through the lifting protrusion D3, the opening forming portion pressure protrusion P2 rises upward, and the tab base A is based on the lever principle with the rivet B as a fulcrum. The air hole forming portion pressure protrusion P1 is pushed down, pressure is applied to the reinforcing protrusion K2, and the air hole forming portion K1 is pressed down to open.

The can lid and rotary tab of the present invention will be described with reference to FIG. 20 showing a state in which the opening forming portion C1 is opened after the air hole forming portion K1 is opened after the start of use.
When the air hole forming portion pressure protrusion P1 passes through the lifting protrusion D4, the air hole forming portion pressure protrusion P1 rises upward, and the tab base A is a lever principle with the rivet B as a fulcrum. Thus, the opening forming portion pressure protrusion P2 is pushed down, and the opening is formed by applying pressure to the reinforcing protrusion C2 to push down the opening forming portion C1.

  FIG. 21 shows a state where the air hole forming portion K1 is opened and the opening forming portion C1 is further opened for the can lid and the rotary tab of the present invention.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 22 showing a plan view of the opening forming portion C1.
The opening forming portion C1 is provided with reinforcing projections C2 on the left and right sides of the stopper recess C5, and the opening forming portion fold C4 and the opening forming portion breaking notch C3 are in contact with the non-opening forming portion D.

The can lid and rotary tab of the present invention will be described with reference to FIG. 23 showing a side view of FIG.
The opening forming portion pressure protrusion P2 of the tab base A is stored in the stopper recess C5 of the opening forming portion C1.
From this position, when the tab base A is moved along the reinforcing protrusion C2 of the opening forming portion C1 in the direction of Y1 to Y2 or Y3 of the arrow, the opening forming portion pressure protrusion P2 is It rises to the protrusion C2, breaks the opening forming portion breaking notch C3 in FIG. 22, and the opening forming portion pressure protrusion P2 moves along the reinforcing protrusion C2, thereby applying pressure to the reinforcing protrusion C2. The opening forming part C1 is pushed down to open.

  Even if the tab pedestal A is moved (rotated) in any of the directions Y1 to Y2 or Y3 of the arrow, the opening forming portion C1 is pushed down and opened with exactly the same movement, so the difference in ease of opening by right-handed and left-handed Will disappear.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 24 showing a plan view of the air hole forming portion K1.
The air hole forming portion K1 is provided with reinforcing projections K2 on the left and right sides of the stopper recess K5, and the air hole forming portion fold K4 and the air hole forming portion breaking notch K3 are in contact with the non-opening forming portion D. .

The can lid and rotary tab of the present invention will be described with reference to FIG. 25 showing a side view of FIG.
The opening forming portion pressure protrusion P2 of the tab base A is stored in the stopper recess K5 of the air hole forming portion K1.
From this position, when the tab base A is moved along the reinforcing protrusion K2 of the air hole forming portion K1 in the direction of the arrow Y3 to Y4 or Y5, the opening forming portion pressure protrusion P2 is 24, the air hole forming portion breaking notch K3 in FIG. 24 is broken, and the opening forming portion pressure protrusion P2 moves along the reinforcing protrusion K2, thereby causing the reinforcing protrusion K2 to move. Pressure is applied and the air hole forming portion K1 is pushed open.

  Even if the tab pedestal A is moved (rotated) in any of the directions Y3 to Y4 or Y5 of the arrow, the air hole forming part K1 is pushed down and opened with exactly the same movement, so that the right-handed and left-handed openings can be easily opened. The difference disappears.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 26 showing the rotary tab.
It is the top view which mounted | wore the said rotation tab 3 to the said can lid panel part C provided with the said opening formation part C1 and the said air hole formation part K1. The tab pedestal A can be opened by rotating it in either direction Y6 or Y7 with a finger or palm.

The can lid and rotary tab of the present invention will be described with reference to FIG. 27 showing a side view of the reinforcing protrusion C2 and the reinforcing protrusion K2.
Centering on the rivet B so that the pressure of the opening forming portion pressure protrusion P2 or the air hole portion pressure protrusion P1 of the tab base A can be effectively applied to the reinforcing protrusion C2 and the reinforcing protrusion K2. It is an example of the cross section arrange | positioned by providing a height difference on the circumference.
This is a shape for adjusting the pressure for breaking the opening forming portion C and the air hole forming portion K1, and adjusting the folding angle.

The can lid and rotary tab of the present invention will be described with reference to FIG. 28 showing the position of the rotary tab.
It is the top view which mounted | wore the said rotation tab 3 to the said can lid panel part C provided with the opening formation part C1 and the air hole formation part K1.

  The tab base A is provided with the air hole forming portion pressure protrusion P1 and the opening forming portion pressure protrusion P2, and is attached to the can lid panel portion C by the rivet B, and the opening forming portion pressure protrusion P2 is a stopper. It is stored at the position of the recess C5.

  An opening forming portion C1 provided with a reinforcing projection C2A and a reinforcing projection C2B is in contact with the can lid panel portion C by an opening forming portion breaking notch C3 and an opening forming portion fold C4.

The can lid and rotary tab of the present invention will be described with reference to FIG. 29 showing the position of the rotary tab.
From FIG. 28, the tab base A of the rotary tab 3 is rotated and moved so that the air hole forming portion pressure protrusion P1 and the opening forming portion pressure protrusion P2 overlap the reinforcing protrusion K2 and the reinforcing protrusion C2A, respectively. Has been.

  When the tab base A moves from FIG. 28 to FIG. 29, the air hole forming portion pressure protrusion P1 contacts the reinforcing protrusion K2 and opens the air hole forming portion K1.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 30 showing a cross-sectional view taken along the line AA ′ of FIG.
After the air hole forming portion pressure protrusion P1 of the tab base A contacts the reinforcing protrusion K2 and the air hole forming portion K1 is opened, the opening forming portion pressure protrusion P2 overlaps the reinforcing protrusion C2. . In this state, the opening forming portion C1 is opened by pressing the tab base A with a finger or palm.
The degree of bending of the opening forming portion fold C4 is adjusted by the shape of the reinforcing protrusion C2.

  After opening the opening forming portion C1, the opening forming portion pressure protrusion P2 of the tab base A is returned to the position of the stopper recess C5, that is, the state of FIG.

  The shape of the outer periphery of the air hole forming portion pressure protrusion P1 is matched with the shape of the outer periphery of the hole when the air hole forming portion K1 is opened, and the shape of the outer periphery of the opening forming portion pressure protrusion P2 and the opening When the shapes of the holes when the forming portion C1 is opened are matched, the air hole forming portion pressure protrusion P1 and the opening forming portion pressure protrusion P2 can be used as lids for the opened holes, respectively.

The can lid and rotary tab of the present invention will be described with reference to FIG.
A protrusion or packing PK2 that fits the hole formed in the opening forming portion C1 is provided around the opening forming portion pressure protrusion P2 of the tab base A, and the air is formed around the air hole forming portion pressure protrusion P1 of the tab base A. A protrusion or packing PK1 adapted to the hole formed in the hole forming portion K1 can be provided.
Thereby, this tab base A can be provided with the function of a lid | cover.

The can lid and the rotary tab of the present invention will be described with reference to FIG.
A pressure protrusion receiving recess U is provided at the tip of the reinforcing protrusion K2 or the reinforcing protrusion C2, or at either the air hole forming portion K1 or the opening forming portion C1.

The can lid and the rotary tab of the present invention will be described with reference to FIG. 33 which is a side view showing an example of the guide groove.
In order to prevent the tab base A from floating upward and to be surely broken, a guide for guiding the tip of the tab base A so that the tab base A is guided along the can lid panel portion C. A groove M is provided.

  It is easy to open for weak elderly people, women, and children, and can provide cans regardless of whether they are right-handed or left-handed.

  Since a lid can be provided, it is possible to provide the same convenience as a plastic bottle.

  Since the design of only the can lid parts is changed, the filling device can be used without any improvement, so there is no burden of capital investment by the beverage manufacturer.

DESCRIPTION OF SYMBOLS 1 Can 2 Can lid 3 Rotation tab B Rivet C Can lid panel part A Tab base A3 Finger hook A4 Finger hole A5 Friction protrusion P1 Air hole formation part Pressure protrusion P2 Opening formation part Pressure protrusion D Non-opening formation part D1 Stopper recess D2 Stopper recess D3 Raising protrusion D4 Raising protrusion C1 Opening forming part C2 Reinforcing protrusion C3 Opening forming part breaking notch C4 Opening forming part folding C5 Stopper depression K1 Air hole forming part K2 Reinforcing protrusion K3 Air hole forming part breaking notch K4 Air Hole formation part fold K5 Stopper recess M Guide groove PK1 Protrusion or packing PK2 Protrusion or packing U Pressure protrusion receiving recess

Claims (19)

    In the can lid and the rotary tab of the present invention, the can lid 2 and the rotary tab 3 on the upper surface of the can 1 are rotatably coupled by a rivet B, and the can lid 2 can be broken and left open. A can lid and a rotary tab, wherein an air hole forming portion K1 is provided.     2. The can lid and rotary tab according to claim 1, wherein the strength of the rotary tab 3 is enhanced by forming the periphery of the tab pedestal A into a bent structure or a curved structure centered on the rivet B.     The opening forming portion C1 is provided with a reinforcing protrusion C2 at a contact portion with the tab base A, or the air hole forming portion K1 is provided with a reinforcing protrusion K2 at a contact portion with the tab base A, and the rivet The can lid and the rotary tab according to claim 1 or 2, wherein the can lid and the rotary tab are arranged with a difference in height on a circumference centering on B.     The tab pedestal A is provided in the air hole forming portion K1 by rotating the tab pedestal A with a finger or palm around the rivet B along the surface of the can lid panel portion C of the can lid 2. A pressure is applied to the reinforcing protrusion K2 to contact the reinforcing protrusion K2, the air hole breaking notch K3 is broken, the air hole fold K4 is bent to push down the air hole forming portion K1, and the tab base A is formed as an opening. Contacting the reinforcing projection C2 provided on the portion C1, applying pressure to the reinforcing projection C2, breaking the opening forming portion breaking cut C3, bending the opening forming portion fold C4, and pushing down the opening forming portion C1 A can lid and a rotary tab according to any one of claims 1 to 3.     5. The can lid and rotary tab according to claim 1, wherein an air hole forming portion pressure protrusion P <b> 1 is provided at a lower portion of the tab base A that contacts the air hole forming portion K <b> 1.     The can lid and rotary tab according to any one of claims 1 to 5, wherein an opening forming portion pressure protrusion P2 is provided at a lower portion of the tab base A that contacts the opening forming portion C1.     7. A pressure protrusion receiving recess U is provided at the tip of the reinforcing protrusion K2 or the reinforcing protrusion C2, or at either the air hole forming portion K1 or the opening forming portion C1. A can lid and a rotary tab according to any one of the above.     A stopper recess D1 is provided in the non-opening formation portion D corresponding to the air hole forming portion pressure protrusion P1, or a stopper recess D2 is provided in the non-opening formation portion D corresponding to the opening formation portion pressure protrusion P2. The can lid and the rotary tab according to any one of claims 1 to 7.     The lifting protrusion D3 is provided on the non-opening forming portion D at a symmetrical position with respect to the rivet B of the reinforcing protrusion K2, or at a symmetrical position with respect to the rivet B of the reinforcing protrusion C2. 9. A lifting protrusion D4 is provided in the non-opening forming portion D, and is arranged with a difference in height on a circumference centered on the rivet B. Can lid and rotary tab.     The can lid and the rotary tab according to any one of claims 1 to 9, wherein a finger hook A3, a finger hole A4, or a friction projection A5 is provided in at least one place on the upper surface of the tab base A.     The can lid and the rotary tab according to any one of claims 1 to 10, wherein a plurality of reinforcing protrusions K2 are installed in the air hole forming portion K1.     The can lid and the rotary tab according to any one of claims 1 to 11, wherein a plurality of the reinforcing protrusions C2 are installed in the opening forming portion C1.     A stopper recess K5 is provided in the air hole forming portion K1 corresponding to the air hole forming portion pressure protrusion P1, or a stopper recess C5 is provided in the opening forming portion C1 corresponding to the opening forming portion pressure protrusion P2. The can lid and the rotary tab according to any one of claims 1 to 12.     The can lid and rotary tab according to any one of claims 1 to 13, wherein the tab base A can be used in combination with a pull-top type.     The can lid and rotary tab according to any one of claims 1 to 14, wherein the diameter of the rivet B can be increased to double the reinforcement of the tab base A.     The tab pedestal A is rotated by a finger or a palm around the rivet B along the surface of the can lid panel C, and the tab pedestal A comes into contact with the reinforcing protrusion K2 provided in the air hole forming portion K1. Then, pressure is applied to the reinforcing projection K2 and the pressure is applied with a finger or palm to break the air hole breaking notch K3, fold the air hole fold K4 to push down the air hole forming portion K1, and further to the tab base A Presses the tab base A with a finger or palm in contact with the reinforcing projection C2 provided in the opening forming portion C1, thereby applying pressure to the reinforcing projection C2 to break the opening forming portion breaking notch C3 to form an opening. The can lid and the rotary tab according to any one of claims 1 to 15, wherein the opening portion C1 is pushed down by bending the partial fold C4.     The shape of the outer periphery of the air hole forming portion pressure protrusion P1 is matched with the shape of the outer periphery of the hole when the air hole forming portion K1 is opened, and the shape of the outer periphery of the opening forming portion pressure protrusion P2 and the opening forming portion are matched. The shape of the hole when C1 is opened is made to coincide, or a protrusion or packing PK1 and a protrusion or packing PK2 that match each of the opened holes are provided on the back surface of the tab base A to provide a lid function. A can lid and a rotary tab according to any one of claims 1 to 16.     18. A pressure protrusion receiving concave portion U is provided at the tip of the reinforcing protrusion K2 or the reinforcing protrusion C2, or at either the air hole forming portion K1 or the opening forming portion C1. A can lid and a rotary tab according to any one of the above.     The can lid and the rotary tab according to any one of claims 1 to 18, wherein a guide groove M for guiding the tab base A is provided.