JP6090914B2 - Tearable container lid - Google Patents

Description

  The present invention relates to a tearable container lid that is attached to the mouth portion of a container filled with a content liquid such as a beverage and tears a part of the lid to facilitate opening and closing thereof. The present invention relates to a tearable container lid that prevents the extension piece from being bent by a predetermined angle or more when the lid is opened, thereby preventing the extension piece from being cut and obstructing the opening.

  The tear-type container lid can be opened with a single touch from a sealed container mouth, and the content liquid in the container can be used immediately. Therefore, the tear-type container lid is often used for a drink-type container filled with a content liquid such as a beverage. That is, as shown in FIGS. 6 and 7, the tearable container lid includes a top plate 50, a skirt portion 51 depending from the outer periphery of the top plate 50, and at least the skirt portion 51 of the skirt portion 51 and the top plate 50. Is formed by a tear line 53, a tear piece 53 extending from an end 52 of the partitioned skirt portion 51, and a tearing member 54 that fixes the tear piece 53 in an enclosed state. This tear-type container lid is stoppered into the mouth portion 56 of the container 55 so as to be liquid-tight, and the skirt portion 51 is deformed and adhered to the rim flange 56a on the outer side surface of the container mouth portion 56 to facilitate The liquid-tight state is maintained so as not to come off.

  Since the container 55 equipped with the above-described tearable container lid is opened with one touch by tearing the container lid itself, the container 55 cannot be closed again once opened. It is required to use up in principle. On the other hand, in order to use the content liquid in the container 55, the tearable container lid itself attached to the container 55 is torn. Therefore, if the tearing is not performed smoothly, the content liquid in the container 55 may be used. It becomes very difficult.

  In order to tear the container lid, the tear piece 53 may be torn and opened before the skirt portion 51 is torn and opened along the tear line by the tear piece 53 using the tear member 54. In particular, when the tearable container lid is made of a metal such as aluminum except for the tearing member 54, the tear piece 53 is torn and cannot be opened frequently. A possible reason for this is that a certain amount of force is required for this tearing. Therefore, the tear piece 53 is bent repeatedly at the time of opening, the aluminum tear piece 53 is fatigued, and it cannot be opened due to tearing. A child or the like keeps holding the container 55 containing the content liquid with his / her finger at the peeling member 54, and as a result, the tear piece 53 is repeatedly bent, and the aluminum tear piece 53 is already fatigued when opening. However, there may be a situation where it becomes impossible to open the package by tearing from the location.

  As shown in FIGS. 8 and 9, as a tearable container lid that can eliminate the inconvenience that such a tear piece is fatigued and cannot be opened due to tearing, an end close to the skirt portion 51 on the peeling member 54 is shown. Even if the tearing piece 53 is repeatedly bent at the time of opening by providing the projecting part 57 and the spacer 58 in the part, the projecting part 57 and the spacer 58 hit the skirt part 51, and the bending angle is suppressed to suppress the aluminum tearing piece 53. There is a type in which the degree of fatigue is lowered and the skirt 51 can be easily torn along the tear line by lever action so that it can be opened (see, for example, Patent Documents 1 and 2).

Japanese Examined Patent Publication No. 6-17142 Japanese Examined Patent Publication No. 6-17143

  In the tearable container lids of Patent Documents 1 and 2, when the skirt portion 51 is torn along the tear line by the tear piece 53 using the tearing member 54, the projecting portion 57 and the spacer 58 hit the skirt portion 51. The skirt portion 51 can be torn along the tear line by suppressing the bending angle of the 53 and by levering the tear piece 53 without tearing. However, in order to suppress the bending angle of the tear piece 53, the protrusion 57 and the spacer 58 must be made considerably high. As a result, depending on the shape of the container 55, the full width of the container equipped with the tear container lid The size is widened, which tends to be disadvantageous for storage and transportation, and a child or the like keeps holding the container 55 containing the content liquid with his / her finger at the peeling member 54, resulting in metal fatigue of the tear piece 53. In some cases, it will not be possible.

  Therefore, the object of the present invention is not particularly affected by the shape of the container, and even when attached to the container, without widening its entire width dimension, preventing tearing of the tear piece at the time of opening, and lever action at the time of opening An object of the present invention is to provide a tearable container lid that can be easily opened by exhibiting the above.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention, the top plate, the skirt portion suspended from the outer periphery of the top plate, and at least the skirt portion of the skirt portion and the top plate are partitioned by a tear line, and the partitioned skirt portion A container mouth portion comprising: a tear piece extending from an end portion; and a tearing member having an extended piece contacting the inner surface of the skirt portion defined by the tear line while fixing the tear piece in an enclosed state A tear-off container lid for closing the tear-off member, wherein the extension piece of the tear-off member is weakly bonded to the inner surface of the skirt portion, and the tear-off member lid is opened when the tear-off-type container lid is opened. A piece is peeled off from the inner surface of the skirt portion and abuts against an outer surface of the container mouth portion to prevent the tear piece of the peeling member from bending more than a predetermined angle. .

  Further, according to the present invention, the leading end position P1 of the extended piece is higher than the height position P2 at which the stopper head for stoppering the container mouth portion crimps the skirt portion. A lid is provided.

  The action of the first problem solving means is that when the tearable container lid is opened by the peeling member, the extension piece is peeled off from the inner surface of the weakly bonded skirt portion and comes into contact with the outer surface of the container mouth portion. In addition, it prevents the tear piece from bending over a predetermined angle, and in addition, the extension piece increases the opening force as a fulcrum of the lever action of opening by the peeling member, and the skirt and the top plate are smooth along the tear line. Can be torn.

  The action of the second problem solving means is that when the tearable container lid is plugged into the container mouth by the stopper head, the skirt is crimped with the container mouth including the tip of the extended piece. become. And since the extension piece peels off from the weakly-adhering skirt part inner surface reliably by the external force at the time of crimp, the said effect is more reliably exhibited.

  According to the tearable container lid of the present invention, there is no particular influence on the container shape, and even when attached to the container, the width of the container does not increase, which is advantageous for storage and transportation. The tear pieces are prevented from tearing, and the lever action is exhibited at the time of opening, so that the opening can be smoothly performed.

  In the tearable container lid of the present invention, the tearable container lid can be plugged into the container mouth by crimping the skirt with the container mouth including the tip of the extended piece. The portion can be sealed well, and the extension piece is surely peeled off from the inner surface of the weakly bonded skirt portion by an external force at the time of plugging, so that the above effect can be more reliably exhibited.

It is a front view of a tearable container lid showing an embodiment of the present invention. It is a longitudinal cross-sectional view of the tearable container lid which shows embodiment of this invention. It is a bottom view of a tearable container lid showing an embodiment of the present invention. It is a longitudinal cross-sectional view which shows the state which plugged the tearable container lid of embodiment of this invention in the container opening part. It is a longitudinal cross-sectional view which shows the state which opens the tearable container lid plugged in the container opening part. It is a longitudinal cross-sectional view which shows the prior art example of a tearable container lid. It is a longitudinal cross-sectional view which shows the prior art example of a tearable container lid. It is a longitudinal cross-sectional view which shows the prior art example of a tearable container lid. It is a perspective view which shows the prior art example of a tearable container lid.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  In the drawings, reference numeral 1 denotes a tearable container lid. The tearable container lid 1 includes a top plate 2, a skirt portion 3 suspended from the outer periphery of the top plate 2, and at least the skirt portion 3 and the top plate 2 of the skirt. The section 3 is partitioned by the tear line 4, the tear piece 5 extending from the end of the partitioned skirt section 3, and the skirt section 3 that fixes the tear piece 5 in an enclosed state and is partitioned by the tear line 4. A stripping member 7 having an extending piece 6 in contact with the inner surface 3a of the container 8 is for closing the mouth 9 of the container 8, and the extending piece 6 of the peeling member 7 is an inner surface of the skirt portion 3. When the tearable container lid 1 is unsealed with the peeling member 7, the extension piece 6 is peeled off from the inner surface 3 a of the skirt portion 3 and comes into contact with the outer surface 9 a of the container mouth portion 9. What prevents the tear piece 5 from bending more than a predetermined angle A.

  The container 8 is not particularly limited as long as the tearable container lid 1 can be attached to the mouth portion 9 by plugging, and any type and material may be used. In the container 8 of the first embodiment, a bottle type is assumed, a rim flange 10 is provided at the end of the mouth portion 9, the skirt portion 3 of the tearable container lid 1 is applied to the container mouth portion 9, and the stopper is plugged Then, the skirt portion 3 is deformed and attached in close contact with the upper surface of the container mouth portion 9 and the rim flange 10.

  As described above, the tear-type container lid 1 has a main part formed by the top plate 2 and a skirt part 3 depending on the top plate 2 and is made of a metal such as aluminum. The inner surface of 3 is coated with a coating film that can adhere to the polyolefin resin. The disc-shaped sealing material 11 can be formed of a soft resin such as low-density polyethylene or an elastomer, and a required amount in a molten state is dropped onto the inner surface 2a of the top plate 2 and pressed with a mold to form a disc shape. The By using a soft resin or elastomer such as low-density polyethylene, the molding distortion of the disc-shaped sealing material 11 is quickly relieved, and the entire lower surface or a part including the central portion is a coating film on the inner surface 2a of the top plate 2. And firmly fixed. As described above, when the tearable container lid 1 is plugged into the container mouth portion 9, the container 8 is completely sealed by being in close contact with the upper surface of the container mouth portion 9 and the rim flange 10. As the material of the peeling member 7, a highly crystalline or rigid resin is used, and molding distortion remains. Therefore, the adhesive force at the interface between the extended piece 6 and the inner surface 3 a of the skirt portion 3 decreases with time. It is fixed in the state of weak adhesion. An example of a highly crystalline resin is high-density polyethylene, and an example of a rigid resin is polypropylene.

  The tear line 4 is provided on the skirt portion 3 and the top plate 2, and divides them, and the tear piece 5 extends from the end portion of the partitioned skirt portion 3. Note that a V-shaped notch 12 is provided in the skirt portion 3 located on both sides of the base end of the tear piece 5, and this V-shaped notch 12 is connected to the tear line 4 and is opened when the V-shaped notch 12 is opened. The force concentrates on the tear line 4 to facilitate tearing. Further, the tear line 4 may be provided at least in the skirt portion 3, and the tear-type container lid 1 can be almost completely opened. In the first embodiment, the tear line 4 is also provided on the top plate 2 in addition to the skirt portion 3. 4 is provided to improve the above-mentioned openability.

  Since the tear piece 5 extends from the end portion of the skirt portion 3 defined by the tear line 4, the material of the tear piece 5 is naturally made of the same metal as the skirt portion 3 such as aluminum. And this tear piece 5 is fixed to the said peeling member 7 in the surrounding state.

  The peeling member 7 includes a finger hook 13 for applying a force by applying a finger, and a base end for transmitting the force applied to the finger hook 13 to the tear piece 5 by fixing the tear piece 5 in an enclosed state. It is preferable that the material is made of a rigid resin. The tearing member 7 transmits the force applied to the finger hook 13 to the tear piece 5 via the base end portion 14, tears the tear line 4 through the tear piece 5, and finally pulls the tear-type container lid 1. It is for peeling off.

Further, the extending piece 6 described above is provided at the base end portion 14 of the peeling member 7, and this extending piece 6 is weakly bonded to the inner surface 3a of the skirt portion 3, and opens the tearable container lid 1. For this reason, when a force is applied to the finger-hanging portion 13, it quickly peels from the inner surface 3 a of the skirt portion 3.
Then, as shown in FIG. 5, the peeled extended piece 6 is in a state where its distal end portion 6 a abuts against the outer surface 9 a of the container mouth portion 9 due to its rigidity, and the tear piece 5 has a predetermined angle or more. It prevents bending and prevents tearing pieces 5 from tearing when opened. The predetermined angle means an angle that does not become an acute angle. Further, the tip 6a of the extended piece 6 can be torn the skirt 3 and the top plate 2 along the tear line 4 promptly when the abutment is used as a fulcrum for lever action when opened. Thus, the tearable container lid 1 can be easily opened.

  As shown in FIG. 2, the position P1 of the distal end portion 6a of the extending piece 6 is a height at which the stopper head (not shown) for stoppering the mouth portion 9 of the container 8 crimps the skirt portion 3. The height is higher than the position P2. Therefore, when the tearable container lid 1 is plugged into the container opening 9 by the plugging head, the skirt 3 is crimped with the rim flange 10 of the container opening 9 including the tip 6a of the extending piece 6. Will do.

Next, a method for using the tearable container lid 1 having the above-described configuration will be described.
The tearable container lid 1 is delivered to the user in the state shown in FIGS. The user fills the container 8 to which the tearable container lid 1 is mounted with the content liquid, and then attaches the skirt portion 3 of the tearable container lid 1 to the container mouth 9 and plugs it into the upper surface of the container mouth 9. The skirt portion 3 is deformed and attached to the rim flange 10 in a close contact state. At this time, the position P1 of the distal end portion 6a of the extending piece 6 in the tearable container lid 1 is set higher than the height position P2 at which the skirt portion 3 is completely crimped by the plugging head. The rim portion 10 is crimped with the skirt portion 3 including the distal end portion 6 a of the extended piece 6, and the container mouth portion 9 is completely sealed by the tearable container lid 1. Further, when the stopper is plugged in this state, the weakly bonded portion between the extension piece 6 and the inner surface 3a of the skirt portion 3 is easily peeled off by an external force at the time of stoppering, and the above-described effect can be further exerted.

  At the time of opening, if a finger is applied to the finger hanging portion 13 of the peeling member 7 and a force is applied in the opening direction, the force concentrates on the V-shaped notch 12 of the skirt portion 3 through the tear piece 5, and the skirt portion 3 and the top plate 2 tear lines 4 can be torn, and finally the tearable container lid 1 can be peeled off from the container mouth 9 and opened. At this time, since the extending piece 6 of the peeling member 7 is weakly bonded to the inner surface 3a of the skirt portion 3, it is quickly peeled off from the inner surface 3a of the skirt portion 3, and the rigidity of the tip portion 6a becomes the container. Abuts against the outer surface 9a of the mouth 9, prevents the tear piece 5 from bending over a predetermined angle due to a stretched state, prevents tearing of the tear piece 5 during opening, and the tip of the extended piece 6 6a becomes a fulcrum of the lever action, and the skirt portion 3 and the top plate 2 can be quickly torn along the tear line 4, and the tearable container lid 1 can be easily opened.

Next, the performance of the tearable container lid of the present invention and that of the conventional tearable container lid were compared, and the situation is shown.
<Test Example 1>
After plugging the tearable container lid of the present invention shown in FIGS. 1 to 3 into an empty bottle-type container mouth, apply a force in the opening direction by placing a finger on the finger-hook part of the peeling member, and visually Observed. As a result, as shown in FIG. 5, the extending piece of the peeling member is quickly peeled off from the inner surface of the skirt portion, and the leading end portion comes into contact with the outer surface of the container mouth portion to be in a stretched state. It prevented bending and increased the curvature of the tear pieces.
<Test Example 2>
Further, in the sample produced in the same manner as in Test Example 1, the finger was placed on the finger-hanging portion of the peeling member, and the force was repeatedly applied in the opening direction and the closing direction. In other words, the tear piece was repeatedly bent, The tear situation was observed. In addition, tearing of this tear piece was performed about 5 cases.
As a result, tearing of the tear pieces occurred at an average number of folding times of 35 times.

<Comparative example 1>
After plugging the tear-type container lid of the conventional example shown in FIGS. 6 to 7 into an empty bottle-type container mouth, apply a force in the opening direction by placing a finger on the finger hook of the peeling member, and visually Observed. As a result, as shown in FIG. 7, since there is nothing that prevents the tear piece from bending more than a predetermined angle, the curvature of the tear piece is reduced.
<Comparative example 2>
Further, in the sample produced in the same manner as in Comparative Example 1, the finger was placed on the finger-hanging portion of the peeling member, and the force was repeatedly applied in the opening direction and the closing direction, that is, the tear piece was repeatedly bent, The tear situation was observed. In addition, tearing of this tear piece was performed about 5 cases.
As a result, tearing of the tear pieces occurred at an average of 20 folding times.

  While the first embodiment of the present invention has been described above, it should be understood that the specific configuration is not limited to this, and that modifications can be made as appropriate without departing from the scope of the present invention.

  The tearable container lid of the present invention is not particularly affected by the shape of the container, prevents the tearing piece from tearing when opened, and does not widen the entire width even when mounted on the container. When it is desired to make it easy to open it, its availability becomes extremely high.

DESCRIPTION OF SYMBOLS 1 Tear type container lid 2, 50 Top plate 2a Top plate inner surface 3, 51 Skirt part 3a Skirt part inner surface 4 Tear line 5, 53 Tear piece 6 Extension piece 6a Tip part 7, 54 Peeling member 8, 55 Container 9, 56 mouth (container mouth)
9a Outer side surface 10, 56a Rim flange 11 Ring-shaped sealing material 12 V-shaped notch 13 Finger hook portion 14 Base end portion 52 End portion 57 Protruding portion 58 Spacer

Claims (2)

A top plate, a skirt portion hanging from the outer periphery of the top plate, and at least the skirt portion of the skirt portion and the top plate are partitioned by a tear line, and a tear piece extending from an end of the partitioned skirt portion A tearable container lid for closing the container mouth portion, and a tearing member having an extending piece contacting the inner surface of the skirt portion defined by the tear line and fixing the tear piece in an enclosed state Because
The extension piece of the peeling member is weakly bonded to the inner surface of the skirt portion, and when the tearable container lid is opened by the peeling member, the extension piece is peeled off from the inner surface of the skirt portion, and the container mouth A tearable container lid, wherein the tearable piece of the tearing member is prevented from bending more than a predetermined angle by coming into contact with the outer surface of the part.
The tearable container lid according to claim 1, wherein a tip position P1 of the extending piece is higher than a height position P2 at which a stopper head for stoppering the container mouth portion crimps the skirt portion.