JP2004043007A - Can lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a can lid of a beverage can or a can which can be raised lightly without damaging a finger. <P>SOLUTION: Tabs (23 and 50) comprise tab main bodies (230 and 51) and knob pieces (231 and 52) respectively. Each of the main bodies (230 and 51) is fixed to the can main body (21) with an attachment portion (24) so that a part of the tab main body overlaps an area enclosed by scores (210 and 43). Each of the knob pieces is swingably secured to the tab main body around a securing axis (235) approximately parallel to the can main body surface. The knob piece has a length not exceeding the outer margin of the can and its swing angle is limited to a predetermined angle range including at least such an angle that a fingertip can be hooked on the knob piece or a fingertip can be inserted between the knob piece and the can main body. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a can lid, for example, to a structure in which a beverage can or canned tab can be raised lightly and thus without damaging the fingers to form an opening.
[0002]
[Prior art]
For example, beverages such as beer, juice and coffee are often sold in beverage cans. In such a beverage can, a score (easy-to-break line) is engraved in the shape of a drinking spout from two points separated from each other on the can lid, and the center of the tab is fixed with rivets adjacent to the score, and the tab and the can lid are formed. When the fingertip is inserted between the tabs and the finger is hooked on the tab, the tip side of the tab tilts downward and the tip side of the tab presses the area surrounded by the score, breaking a part of the score, and further breaking the tab Causes all scores to break, forming a drinking spout.
[0003]
However, in the conventional can lid, the tab is fixed so as to substantially overlap the can lid by rivets, and when the tab fingertip is hooked, a part of the score is broken, so it is difficult to hook the fingertip on the tab, Attempting to raise the tab with the nails could place an undue burden on the nails and damage the fingers.
[0004]
In view of this, various types of can lids that can easily raise the tab have been proposed (Japanese Patent Application Laid-Open Nos. 05-178345, 05-305945, 06-92354, and 06-48442). JP-A-06-156488, JP-A-06-270937, JP-A-10-35662, JP-A-10-236474, JP-A-10-236457, JP-A-10-296362, JP-A-11-105869, JP-A-11-321852, JP-A-11-278484, JP-A-2000-128167, JP-A-2000-335576, JP-A-2001-199441, and JP-A-Hei05-105. -22398, etc.).
[0005]
For example, Japanese Utility Model Registration No. 3005722 proposes a method in which a grip is pivotally supported on a tab, and the grip is raised around a pivot axis and gripped with two fingers to cause a tab. In Japanese Patent Application Laid-Open No. 08-119276, a grip is pivotally supported on a tab, the grip is raised around a pivot axis, and an upright wall portion at an outer peripheral edge of a can lid is used as a fulcrum, and the principle of leverage is used in two stages. Such a system has been proposed.
[0006]
[Problems to be solved by the invention]
By the way, canned beverages are generally sold using a vending machine.However, when the canned beverage is set in the vending machine in the pivot type can lid, the canned beverage moves in the vending machine, for example, falls. There is a concern that the gripper may rise from the can lid and be caught and stopped in the vending machine.
[0007]
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a can lid that can prevent the tab from being caught and stopped in a vending machine while ensuring the tabs to be raised.
[0008]
The inventor of the present invention has conducted intensive studies to solve the above-mentioned problems, and as a result, the tab is composed of a tab body and a swingable knob, and the swing angle of the knob is set to the tip of the can lid. If the angle is controlled so as not to exceed the standing wall part, the fingertip can be easily hooked on the knob or the finger can be easily inserted between the knob and the can lid, and set in the vending machine. He came to pay attention to the fact that there is no risk of being stopped by being caught.
[0009]
In the case of canned fish, meat and fruits that have been cooked, scores are carved around the entire inner wall of the can wall.However, a canning outlet is formed in the same way as a beverage can. ing. Although canned food is rarely set in a vending machine, the above-mentioned concept can be applied to canned food because an unreasonable load is applied to the nails when opening the takeout opening and the fingers may be damaged.
[0010]
[Means for Solving the Problems]
Therefore, in the can lid according to the present invention, an upright wall portion connected to the upper opening edge of the can is continuously formed on the outer periphery of the can lid body, while the score is engraved on the can lid body in an opening shape. The tab is fixed by an attaching portion so that at least a part of the tab overlaps with the area surrounded by the score, and by causing the rear end of the tab, the leading end portion of the tab has the score. In a can lid for a can or beverage can, which presses the enclosed area to break at least a part of the score to form an opening, the tab overlaps at least a part of the area enclosed by the score. A tab body fixed by a mounting portion, and a tab piece pivotally supported by the tab body so as to be swingable about a pivot shaft substantially parallel to the surface of the can lid body. The knob piece is the above can lid Having a length not exceeding the outer edge of the body, hooking a fingertip on the knob piece with reference to the surface of the can lid body or inserting a fingertip between the knob piece and the surface of the can lid body The swing is regulated within an angle range up to a predetermined angle including at least the obtained angle.
[0011]
One of the features of the present invention is that the tab is composed of a tab body and a tab, the tab is made to be swingable with respect to the tab body and has a length not exceeding the outer edge of the can lid body. The point is that the swing of the one part is restricted within a predetermined angle range.
[0012]
By this, when opening the can lid, if the knob is slightly swung in the direction of floating from the can lid body, the knob can be easily grasped, so pull up the knob and pull the tab body By swinging to the regulation angle, at least a part of the score can be broken, and there is no need to use a nail to cause the finger as before, and there is no risk of damaging the finger.
[0013]
The swing of the knob may be restricted by any method. For example, the tab piece or the tab body may be provided with a contact portion that comes into contact with the tab body or the tab, and the swing of the tab may be restricted to a predetermined angle or less.
[0014]
The contact portion may be in the form of a protrusion or a protruding piece. When the swing of the knob is controlled by the contact portion, the knob is held at a predetermined angle with respect to the tab body when the can lid is opened, and the knob and the tab body are separated from each other. Since it behaves as if integrated, the pressing force is efficiently transmitted to the distal end side of the tab body as in the case of the conventional integrated tab, and the score can be easily broken.
[0015]
In addition, when the swing of the knob is restricted so that the tip of the knob does not exceed the upright wall portion of the periphery of the can lid body, the can beverage may be caught in the vending machine while moving inside the vending machine. Nor.
[0016]
In the case of a beverage can, the opening formed by breaking the score of the can lid body serves as a drinking can for the beverage can. In the case of canned food, the opening formed by the breakage of the score of the can lid body serves as an outlet for the contents of the can.
[0017]
When the tab is constituted by pivotally pivoting the tab body and the knob piece, in the case of a can lid for a beverage can, due to the structure of the tab and the positional relationship between the tab and the spout, the pivot portion is If the strength is not strong, the knob may be deformed and broken at the pivotal portion when the knob is lifted.
[0018]
Therefore, a pin receiving portion is formed on the tab and the tab body, and the tab is pivotally inserted into the pin receiving portion of the tab and the tab body so that the tab can swing on the tab body. While being pivotally supported, the pin receiving portion of the tab may be configured to have a width substantially equal to or greater than the width of the tilting portion of the tab body upon pressing and breaking of the score.
[0019]
In addition, the tab may be attached to the main body of the can lid with an adhesive seal.In this case, the tab is easily swung up by peeling the adhesive seal and pulling the adhesive seal, and the tab body is raised. On the other hand, while the tab is easily raised, the possibility that the tab piece of the tab stands up and gets caught in the vending machine can be more reliably eliminated.
[0020]
In the case of a can lid for cans, since it is rarely set in a vending machine, it is not necessary to regulate the swing angle of the knob piece.
[0021]
According to the present invention, an upright wall portion joined to the upper opening edge of the can is continuously formed on the outer periphery of the can lid body, while a score is engraved on the can lid body in an opening shape. A region where at least a part of the tab overlaps with the region surrounded by the score and is fixed by the mounting portion, and the rear end side of the tab is caused to cause the front end portion of the tab to be surrounded by the score. By pressing at least a portion of the score to break at least a portion of the score, an opening can be formed, in which the tab is fixed to the main body of the can lid by a mounting portion at a tip thereof close to the score. A tab body, and a tab piece pivotally supported on the tab body so as to be swingable about a pivot axis substantially parallel to the surface of the can lid body, and the tab piece is an outer edge of the can lid body. Have a length that does not exceed It is possible to provide a can lid, wherein the door.
[0022]
Also in the case of this can lid, if the knob piece is adhered to the can lid body with an adhesive seal, the knob piece does not rattle during transportation or the like, so that it can be handled in the same manner as ordinary cans.
[0023]
In addition, from the viewpoint of ensuring hygiene, a cap, a film, or a seal may be placed on the entire can lid, or the mouth of the beverage can may be closed with a seal or a film, from the viewpoint of ensuring hygiene in both the beverage can and the can.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 4 show a preferred embodiment of a can lid according to the present invention, which is an example applied to a can lid of a beverage can. In the drawing, a can 10 is formed into a substantially cylindrical shape with a predetermined height and a bottom using an appropriate metal material, for example, an aluminum-based alloy, and an upright wall portion 22 of a can lid 20 is fitted to an upper opening edge of the can 10. , Tightened and fixed.
[0025]
The can lid 20 is composed of a can lid body 21 and an upstanding wall portion 22 formed continuously on the outer peripheral edge of the can lid body 21. The can lid body 21 stands upright between two substantially spaced central ends. A score 210 is formed in the vicinity of the wall portion 22 in the shape of a drinking mouth (opening).
[0026]
Further, a tab 23 is fixed to the can lid body 21. The tab 23 is composed of a tab body 230 and a tab 231. The tab body 230 is partially fixed on the area surrounded by the score 210 and is fixed to the can lid body 230 by rivets (attachment part) 24. ing. The tab main body 230 is formed with an arc-shaped long groove 232 so that the tab main body 230 can tilt about the rivet 24 as a fulcrum.
[0027]
The tab 231 has a ring shape, and pin receiving portions 233 are provided on both sides of the edge of the tab 231 facing the tab body 230, and the center of the edge of the tab body 230 facing the tab 231. , A pin receiving portion 234 is formed on each of the pin receiving portions 233 and 234, and a connecting pin 235 is inserted through the pin receiving portions 233 and 234, and the knob 231 is pivotally supported on the tab main body 230 so as to be swingable. .
[0028]
Further, a projection (contact portion) 236 is formed on the pin receiving portion 233 of the knob 231, and a concave portion 237 is formed on the tab body 230 at a position corresponding to the projection 236, and the projection 236 of the knob 231 is formed. Fits into the recess 237 of the tab body 230 and abuts thereon, so that a fingertip is hooked on the knob 231 with respect to the surface of the can lid body 21 or between the knob 231 and the surface of the can lid body 21. The swing of the knob 231 is restricted within an angle range up to a predetermined angle that does not exceed the height of the upright wall portion 22 of the can lid 20 and includes an angle at which a fingertip can be inserted.
[0029]
The length b of the pin receiving portion 233 of the knob piece 231 is set to be larger than the width a of the side portion of the tab main body 230 where the tab main body 230 tilts when the score 210 is pressed and ruptured. The pin receiving portion 233 of the knob 231 is not deformed or broken.
[0030]
When opening the drinking can, the knob 231 is swingable with respect to the tab body 230, so that the thumb can be easily gripped with the thumb of the index finger. Then, when the knob 231 is pulled up with respect to the tab main body 230, the protrusion 236 is fitted into the concave portion 237 of the tab main body 230 and hits the bottom surface thereof, and the knob 231 is further swung with respect to the tab main body 230. Can not move. Further, when the knob 231 is pulled up, the tip side portion of the tab main body 230 hits the area surrounded by the score 210, and the tab main body 230 and the knob 231 tilt with the rivet 24 as a fulcrum. The tip side portion of the main body 230 presses an area surrounded by the score 210, a part of the score 210 is broken, and when the knob 231 is further pulled up, the score 210 is completely broken, and the spout is opened.
[0031]
In this manner, the tab 23 can be easily pulled up by easily picking and swinging the gripping piece 231 to break the score 210, and it is not necessary to use a nail as in the related art, and the finger is damaged. There is no danger.
[0032]
In addition, since the swing of the knob 231 is regulated so that the tip of the knob 231 does not exceed the height of the upright wall portion 22 on the periphery of the can lid body 21, the canned beverage is set in the vending machine. There is no danger that the canned beverage will be caught inside the vending machine even when selling it.
[0033]
FIGS. 5 to 7 show a second embodiment, which is an example in which the present invention is applied to a can lid of a beverage can. In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts. In this example, instead of the projection 236, a part of the pin receiving portion 234 of the tab main body 230 is cut and raised, and further processed into the shape of a half of the bottomed cylinder to form the protruding piece (hitting portion) 236, while the knob The knob 231 is formed with a recess 237 in which the projection 236 fits in a portion corresponding to the projection 236. As described above, the contact portion may be formed in a projecting piece shape.
[0034]
In the above two examples, the contact portion 236 is formed to restrict the swing of the knob 231. However, as shown in the third embodiment of FIG. The tab 231 may be attached to the can lid body 21. In addition, for convenience of illustration, a projection or a protrusion as a contact portion is not illustrated.
[0035]
9 and 10 show a fourth embodiment according to the present invention, which is an example applied to a canned can lid. In the figure, a can 30 is formed into a cylindrical shape with a low bottom using a suitable metal material, for example, an aluminum-based alloy, and an upright wall portion 42 of a can lid 40 is fitted to an upper opening edge of the can 30. It is tightened and fixed.
[0036]
The can lid 40 is composed of a can lid main body 41 and an upright wall portion 42 formed continuously on the outer peripheral edge thereof. The can lid main body 41 has a score 43 along the entire inner periphery of the upright wall portion 42. It is engraved in the shape of the outlet.
[0037]
Further, a tab 50 is fixed to the can lid body 41. The tab 50 is composed of a tab body 51 and a ring-shaped knob 52, and the tip body 51 is fixed to the can lid body 41 by a rivet (attachment part) 53 with its tip positioned near the score 43. . The connection structure between the tab piece 52 and the tab main body 51 is substantially the same as that of the first or second embodiment, and can be easily understood, so that the detailed description is omitted.
[0038]
The gripping piece 52 is hooked with a fingertip on the gripping piece 52 with reference to the surface of the can lid main body 41 by the contact of the gripping piece portion 52 and the contact portion of the tab main body 51, or the gripping piece 52 and the can lid main body 41 are separated from each other. The swing of the fingertip is restricted to a predetermined angle including at least an angle at which the fingertip can be inserted into the surface, for example, an angle range of 45 degrees.
[0039]
When opening the can lid, the thumb piece 52 can be easily picked with the thumb of the forefinger. Then, when the knob 52 is lifted upward with respect to the tab body 51, the contact portions come into contact with each other, and the knob 52 swings to an angle at which the knob 52 can no longer swing with respect to the tab body 51. When the tab 52 is pulled up, the tip of the tab body 51 hits the vicinity of the score 43 and presses it strongly, so that a part of the score 43 is broken and the airtightness of the can filled with air is broken. Finally, when a finger is hooked on the knob piece 52 and pulled strongly forward, the score 43 is broken and the outlet is opened.
[0040]
FIG. 11 shows a fifth embodiment of a can lid for cans. In the drawings, the same reference numerals as those in FIGS. 9 and 10 indicate the same or corresponding parts. In this example, the tab main body 51 and the knob 52 are manufactured to have large dimensions, and the knob 52 has a ring shape slightly smaller than the size of the upright wall portion 42 of the can lid main body 41.
[0041]
FIG. 12 shows a sixth embodiment of a can lid for canning. In the drawings, the same reference numerals as those in FIGS. 9 and 10 indicate the same or corresponding parts. In this example, the tab main body 51 is manufactured in a long strip shape, and a device is devised so that the lifting force of the knob piece 52 is transmitted to the score 43 efficiently.
[0042]
FIGS. 13 and 14 show seventh and eighth embodiments of can lids for cans, respectively. In the figures, the same reference numerals as those in FIGS. 11 and 12 indicate the same or corresponding parts. In this example, the tab main body 51 and the knob piece 52 are not provided with a contact portion, so that the knob piece 52 can freely swing.
[0043]
In the case of a can lid for canning, the knob piece 52 can be arbitrarily swingable as described above. However, when it is unpleasant that the knob 52 is making a rattling sound during transportation, the knob 52 may be attached to the can lid body 41 with an adhesive seal.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a beverage can provided with a preferred embodiment of a can lid according to the present invention.
FIG. 2 is a plan view showing a can lid in the embodiment.
FIG. 3 is a diagram illustrating an operation of a tab in the embodiment.
FIG. 4 is a diagram showing an operation of a tab in the embodiment.
FIG. 5 is a plan view showing a second embodiment.
FIG. 6 is a diagram showing an operation in the embodiment.
FIG. 7 is a sectional view showing a main part in the embodiment.
FIG. 8 is a schematic perspective view showing a beverage can provided with a can lid according to a third embodiment.
FIG. 9 is a plan view showing a can having a can lid according to a fourth embodiment of the present invention.
FIG. 10 is a sectional side view showing a main part of the embodiment.
FIG. 11 is a plan view showing a fifth embodiment.
FIG. 12 is a plan view showing a sixth embodiment.
FIG. 13 is a plan view showing a seventh embodiment.
FIG. 14 is a plan view showing an eighth embodiment.
[Explanation of symbols]
Reference Signs List 10 beverage can 20 can lid 21 can lid main body 22 upright wall portion 23 tab 230 tab main body 231 knob piece 233, 234 pin receiving portion 235 connecting pin 236 contact portion (projection, projection)
238 Adhesive seal 30 Canned can 40 Can lid 41 Can lid main body 42 Standing wall portion 43 Score 50 Tab 51 Tab main body 52 Knob piece

Claims (9)

An upright wall portion connected to the upper opening edge of the can is continuously formed on the outer periphery of the can lid body, while a score is engraved on the can lid body in an opening shape, and a tab has at least one of the scores. Part is overlapped with the area surrounded by the score and is fixed by the mounting portion, and by causing the rear end side of the tab, the leading end portion of the tab presses the area surrounded by the score to at least score. In a can lid for a canned or beverage can that was partially broken to form an opening,
The tab overlaps at least a part of the area surrounded by the score and is fixed by a mounting portion, and the tab can swing around a pivot axis substantially parallel to the surface of the can lid body. And a knob piece pivoted to
The knob piece has a length that does not exceed the outer edge of the can lid body, and a fingertip is hooked on the knob piece with reference to the surface of the can lid body, or the knob piece and the can lid body are A can lid characterized in that its swing is regulated within an angle range up to a predetermined angle including at least an angle into which a fingertip can be inserted between the can and a surface. The can lid according to claim 1, wherein the knob piece or the tab body is provided with a stop portion which abuts on the tab body or the knob piece and regulates the swing of the knob piece to the predetermined angle or less. . 3. The can lid according to claim 1, wherein the predetermined angle is an angle such that a tip of the knob piece does not exceed a height of an outer edge of the can lid body. The can lid according to claim 3, wherein the opening formed by breaking the score of the can lid body is a drinking spout of a beverage can. A pin receiving portion is formed on the tab and the tab body, and the tab is pivotally inserted into the pin receiving portion of the tab and the tab body so that the tab can swing on the tab body. While being pivoted,
5. The pin receiving portion of the knob according to claim 1, wherein the pin receiving portion has a width substantially equal to or larger than a width of the inclined portion of the tab body when the score is pressed and broken. Can lid. 3. The can lid according to claim 1, wherein the opening formed by breaking the score of the can lid body is an outlet for taking out the contents of the can. The can lid according to any one of claims 1 to 6, wherein the knob piece is attached to the can lid body by an adhesive seal. An upright wall portion connected to the upper opening edge of the can is continuously formed on the outer periphery of the can lid body, while a score is engraved on the can lid body in an opening shape, and a tab has at least one of the scores. Part is overlapped with the area surrounded by the score and is fixed by the mounting portion, and by causing the rear end side of the tab, the leading end portion of the tab presses the area surrounded by the score to at least score. In a can lid for cans that was partially broken to form an opening,
The tab has a distal end close to the score and fixed to the can lid body by a mounting portion, and the tab body can swing about a pivot axis substantially parallel to the surface of the can lid body. It consists of a pivoted knob piece,
The can lid having a length such that it does not exceed the outer edge of the can lid body. 9. The can lid according to claim 8, wherein the knob piece is attached to the can lid body by an adhesive seal.

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