JP4531516B2 - Container lid - Google Patents

Description

  The present invention relates to a synthetic resin container lid capable of breaking a periphery of a closed portion and forming an opening serving as a drinking or pouring spout by pulling up a pull tab.

  Conventionally, so-called pull-top cans have been used as containers for beverages such as juice and beer. This pull-top type can was previously a type in which the pull tab is detached from the container (main body), and in order to prevent scattering of the pull tab, the pull top having a locking piece capable of locking the pull tab to the container A type can has been proposed (see, for example, Patent Documents 1 and 2). Thereafter, these pull-top cans have been improved, and the type in which the pull tab does not come off the container has become the mainstream (see, for example, Patent Document 3).

Japanese Utility Model Publication No. 3-66829 Japanese Utility Model Publication No. 3-72627 Japanese Patent Laid-Open No. 2004-210318

  However, the pull-top type can where the pull tab does not detach from the container can be configured because the pull tab is made of metal and can maintain the opening by pushing the closed portion and maintaining the open state. This is because it has shape.

  The present invention has been made in view of the problems as described above, and the object of the present invention is to remove the pull tab from the container lid even if the container lid is made of a synthetic resin having no shape retention. An object of the present invention is to provide a container lid that can hold a large opening serving as a drinking mouth or a spout and is easy to drink.

  As a result of diligent research to solve the above problems, the inventors of the present invention have a configuration in which an extension portion having a predetermined length can be formed in the blocking portion, and a locking portion is provided in a portion where the extension portion is to be formed. By using the extension part to make it possible to lock the locking part farther away, even if it is a container lid made of synthetic resin that does not have shape retention, a part of the container lid such as a tab is attached. It has been found that an opening serving as a drinking mouth can be largely retained without being removed from the container lid, and the present invention has been completed.

That is, the present invention is (1) made of a synthetic resin that can hold a part around the closed part in an unbroken state and break the other part to form an opening serving as a drinking or pouring spout. A pull tab provided at the back of the closed portion, an outer edge planned break portion and an outer edge return planned portion provided around the closed portion, and extending from the back side of the closed portion. A central breakage planned portion capable of forming an extension portion of a predetermined length in cooperation with the outer edge breakage planned portion; and a back portion of the closing portion, provided at the formation planned portion of the extension portion, A container lid characterized by comprising an engaging portion for holding the open state of the closing portion , wherein the engaging portion is provided on the back side of the closing portion, and (2 ) the engaging portion is a protrusion It is related with the container lid as described in said (1 ) characterized by being a part.

In addition, the present invention includes ( 3 ) a container lid according to the above (1) or (2), or ( 4 ) a central fracture planned portion, characterized in that it includes a locked portion capable of locking the locking portion Is provided in parallel with the outer edge expected break portion, and can form a belt-like extension portion of a predetermined length in cooperation with the outer edge expected break portion, according to any one of the above (1) to ( 3 ) Any one of the above (1) to ( 4 ), wherein the container lid and ( 5 ) the planned formation part of the extension part are provided with a planned straw return part capable of forming a straw insertion port. It relates to the container lid described.

Furthermore, the present invention provides ( 6 ) a packaging container comprising the container lid according to (1) to ( 5 ) above and a container body, and ( 7 ) the container body has a flange, The packaging container according to ( 6 ) above , ( 8 ) a container main body, wherein the container lid latching part can be hooked on the flange to hold the closed state of the closed part of the container lid It is related with the drink containing a container characterized by being filled with a liquid content and heat-sealing the container lid in any one of said (1)-( 5 ) to this container main body.

  According to the container lid of the present invention, although the container lid is made of a synthetic resin having no shape-retaining property, the opening serving as a drinking mouth or spout is kept large without removing the pull tab from the container lid. Can be very easy to drink.

  The container lid of the present invention is made of a synthetic resin that can hold a part of the periphery of the closed part in an unbroken state and break the other part to form an opening serving as a drinking or pouring spout. A pull tab provided at the back of the closed portion, an outer edge planned break portion and an outer edge return planned portion provided around the closed portion, and extending from the back side of the closed portion. A central break planned portion capable of forming an extension portion of a predetermined length in cooperation with the outer edge break planned portion; and a back portion of the closing portion, provided at the formation planned portion of the extension portion, The container lid is not particularly limited as long as it is a container lid provided with a locking portion for holding the open state of the closed portion, and according to the container lid of the present invention, a container made of a synthetic resin having no shape retaining property Despite being a lid, without pulling the pull tab from the container lid, It can be increased holding an opening serving as a spout, very easy to drink.

  The closing portion is not particularly limited as long as it can form an opening that becomes a drinking mouth or a spout when its periphery is broken, for example, from the center of the lid to the front side A closed portion such as an isosceles triangle or a drop shape provided in a plan view (so that the near side is at the lower side) provided over the mouth side can be mentioned. The pull tab is not particularly limited as long as it is provided at the back part of the closing part (opposite side with the mouth), preferably at the back end part and can be opened by pulling up by hand. For example, a ring-shaped member, a strip-shaped member, etc. are mentioned.

  Further, the outer edge planned break portion provided around the closed portion refers to a portion that is broken by pulling up the pull tab, and the outer edge return planned portion is a portion that maintains a non-breaking state even when the pull tab is pulled up. In other words, it is a part connected to the container lid body, and is not particularly limited to a linear shape or a curved shape. The closed portion (pull tab) is detached from the container lid body due to the provision of the outer fold-back portion. There is nothing to do. It is preferable that the outer edge folding scheduled portion is formed in a straight line on the upper right side of the closing portion in plan view (so that the front side is downward). By being provided at the upper right, the locking portion can be locked at the upper right, so that a right-handed person can easily open (lock). Examples of the outer edge fracture scheduled portion include a kerf (thin wall portion) provided on the front surface side and / or the back surface side of the container lid. Moreover, as an outer edge return plan part, the cut groove (thin-wall part) provided in the back surface of a container lid can be mentioned, for example. It should be noted that the outer edge expected break portion and the outer edge return expected portion can be easily distinguished and formed by those skilled in the art by appropriately setting the shape such as the depth and width of the kerf.

  Further, a central fracture planned portion extending from the back side of the closed portion and capable of forming an extended portion of a predetermined length in cooperation with the outer edge fracture planned portion is provided inside the closed portion, and the outer edge fracture Like the planned part, it refers to the part that is broken by pulling up the pull tab, and is not particularly limited, such as linear or curved, and can be provided in parallel with the planned part of the outer edge to form a belt-like extension. Is preferred. Thus, by forming the extension portion, the locking portion can be guided further from the front side of the closing portion, the closing portion can be held in a deeply folded state, and the opening is held large. be able to. In particular, as described above, the extension portion having a desired length can be formed by providing the center fracture portion in parallel to the outer edge fracture portion.

  The locking portion is not particularly limited as long as it is an inner portion of the closing portion and can be maintained in the opening state of the closing portion provided in the portion where the extension portion is to be formed. However, for example, there are protrusions, hooks, rings, and the like, and a protrusion (protrusion-like engagement) is preferable because it is easy to mold. Although this protrusion can be provided on the front side or the back side of the closing part, it is preferably provided on the back side in terms of easy locking, safety, and aesthetics. The pull tab can also have a function as a locking portion, and this case is also included in the scope of the present invention. The locked portion corresponding to the locking portion can be provided on the container lid main body or the container main body, and can have a shape corresponding to the shape of the locking portion. For example, a protruding member is inserted. Examples include an insertion port, a protrusion-like member that hooks the hook-like member and the ring-like member, and a hook-like member.

  As a particularly preferable combination of the locking portion and the locked portion, the locking portion is a protrusion provided on the back surface of the portion where the extension portion is to be formed, and the locked portion is a flange (container flange) of the container body. It is preferable that the structure is very easy to manufacture. That is, the locking portion has a simple shape, and the container flange is also formed in normal molding of the container body, so that it is not necessary to form the locked portion specially.

  Moreover, in the container lid of this invention, it is preferable that the return plan part for straws which can form a straw insertion opening is provided in the formation part of an extension part. That is, a straw return scheduled portion may be provided at the back of the extension portion so that a small hole can be formed by temporarily stopping the progress of the fracture of the outer edge planned fracture portion and the central fracture planned portion by pulling up the pull tab. preferable. As the straw folding-back portion, for example, a kerf (thin wall portion) provided on the back surface side of the closing portion can be exemplified as in the outer edge folding-back portion. By providing this straw folding part, the outer edge breaking part and the central breaking part can be broken up to the straw folding part, and the drinking can be done by inserting a straw into the formed small hole. It is possible to break all the outer edge breakage planned parts and the central breakage planned part beyond the scheduled turn-back part, and drink it with a mouth as it is.

  The packaging container of the present invention is not particularly limited as long as it includes the above-described container lid of the present invention and the container body, and the container body has a flange. Although preferable, other shapes are not particularly limited. In addition, examples of the container body include those made of synthetic resin and metal. In the case of metal, the adhesive part (flange part) with the container lid is capable of heat sealing with the container lid. A synthetic resin layer (thermoplastic resin layer) is preferably provided. In the case of a synthetic resin, it is particularly preferable that the same material as the container lid is used because there is no need for separate collection. In addition, as a capacity | capacitance of a container main body, although it does not restrict | limit in particular, For example, the thing of about 150-300 ml is mentioned.

  Furthermore, the beverage in a container of the present invention is not particularly limited as long as it is obtained by filling the container body with a liquid content and heat-sealing the container lid on the container body. Is as described above. The liquid content is not particularly limited as long as it has fluidity, and examples thereof include juice and yogurt.

Hereinafter, the present invention will be described more specifically by way of examples with reference to the drawings. However, the technical scope of the present invention is not limited to these examples.
1A is a plan view of a container lid according to an embodiment of the present invention, FIG. 1B is a front view of the container lid shown in FIG. 1A, and FIG. It is a center longitudinal cross-sectional view of a container lid. 2 is an enlarged view of the vicinity of the closed portion of the container lid shown in FIG. 1, (A) shows the front side, and (B) shows the back side. Drawing 3 is a figure showing the closure part circumference of a container lid concerning other embodiments of the present invention, (A) shows the surface side and (B) shows the back side. 4 to 6 are perspective views of the packaging container (contained beverage) using the container lid shown in FIG. 1, and show a state from the closed state to the open state.

  As shown in FIGS. 1A to 1C, a container lid 1 according to an embodiment of the present invention is provided around a pull tab 3 provided at the back of the closing part 2 and around the closing part 2. The outer edge scheduled break portion 4 and the outer edge turn scheduled portion 5, the central fracture planned portion 6 extending from the back side inside the closed portion 2, and the protruding shape provided on the back side of the back portion of the closed portion 2 And a locking portion 7.

  The container lid 1 is, for example, a disk-shaped member made of polypropylene having a diameter of about 8 cm, and has an opening 9 serving as a drinking or pouring spout having a width of about 3.5 cm from the center to the front side (side with mouth). (See FIGS. 5 and 6) A drop-shaped closing portion 2 is provided. As shown in FIGS. 2 (A) and 2 (B), the closed portion 2 has an outer edge planned break portion 4 that is a cut groove that occupies about 70 to 80% around the back side. As shown in FIG. 2 (A), the outer edge expected break portion 4 extends from the left back end portion to the right center portion as seen from the front side. Moreover, the outer edge return plan part 5 which is the cut groove formed in the linear form is provided in parts other than the said outer edge fracture plan part 4 around the back surface side of the obstruction | occlusion part 2, and FIG. As shown, it is provided on the starboard side of the closed portion when viewed from the surface side. In addition, the outer edge scheduled break portion 4 and the outer edge turn scheduled portion 5 are different in shapes such as the depth and width of the groove.

  Further, on the back side of the inside of the closed portion 2, a central fracture planned portion 6 that is a cut groove is provided in parallel to the outer edge fracture planned portion 4, and in cooperation with the outer edge fracture planned portion 4, for example, a long A strip-shaped extension 8 having a length of 3 to 5 cm and a width of about 3 to 10 mm can be formed. Further, a connecting portion of a ring-shaped pull tab 3 having a diameter of about 2 cm is fixed to the end portion of the flange portion on the surface side of the closing portion 2, and by pulling up the pull tab 3, the outer edge fracture planned portion 4 and the center The fracture | rupture planned part 6 is fractured | ruptured and the obstruction | occlusion part 2 is made into an open state. Further, a projection-like locking portion 7 is provided at the back surface side of the closing portion 2 and is to be formed on the belt-like extension portion 8. By locking this locking portion 7, the blocking portion 7 is closed. The opening state of the portion 2 can be maintained.

  Moreover, as shown in FIG. 3, the container lid 1 can also be comprised so that it can insert and drink with a straw. That is, the container lid according to another embodiment of the present invention connects the outer edge planned break portion 4 and the central fracture planned portion 6 at a position of about 5 to 10 mm from the back side of the planned formation portion of the belt-like extension portion 8. In addition, there is provided a straw fold scheduled portion 10 (a cut groove formed on the back surface side) provided perpendicularly to the outer edge rupture scheduled portion 4 and the central rupture scheduled portion 6 and capable of forming a straw insertion opening. In other words, the progress of the breakage of the outer edge planned break portion 4 and the central break planned portion 6 caused by pulling up the pull tab 3 can be stopped at one end by the straw turnback planned portion 10 to form a small hole. In addition, it is also possible to drink with the mouth as it is without using a straw by breaking all the outer edge planned break portions 4 and the central planned break portion 6 beyond the planned straw folding portion 10.

Hereinafter, a method for opening the packaging container (contained beverage) 11 using the container lid 1 will be described.
First, from the closed state shown in FIG. 4, by pulling the pull tab 3 to the near side, the outer edge planned break portion 4 and the central fracture planned portion 6 are simultaneously broken and twisted, and all the outer edge planned break portions 4 are removed. Fracture (see FIG. 5). Next, as shown in FIG. 6, the closing portion 2 is held in an open state by hooking the locking portion 7 to the flange 13 of the container body 12. At this time, the closing part 2 and the extension part 8 have an inverted V shape in which the back surface side of the closing part 2 and the surface side of the extension part 8 are directed upward, and the force in the direction in which the closing part 2 and the extension part 8 approach each other is obtained. work. In addition, the closing part 2 (extension part 8) has a force to return to the closing state, and effectively uses these forces to securely engage the flange 13 of the container body 12, The open state can be reliably maintained.

(A) is a top view of a container lid concerning one embodiment of the present invention, (B) is a front view of a container lid shown in (A), and (C) is a container shown in (A). It is a center longitudinal cross-sectional view of a lid | cover. It is an enlarged view of the obstruction | occlusion part periphery of the container lid shown by FIG. 1, (A) shows the surface side, (B) shows the back surface side. It is a figure which shows the obstruction | occlusion part periphery of the container lid which concerns on other embodiment of this invention, (A) shows the surface side, (B) shows a back surface side. It is a perspective view of the packaging container (contained drink) using the container lid shown in FIG. 1, and shows a closed state. It is a perspective view of the packaging container (contained drink) using the container lid shown by FIG. 1, and shows the intermediate state from a closed state to an open state. It is a perspective view of the packaging container (contained drink) using the container lid shown by FIG. 1, and shows an open state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container lid 2 Closure part 3 Pull tab 4 Outer edge rupture scheduled part 5 Outer edge fold scheduled part 6 Center rupture scheduled part 7 Locking part 8 Band-like extension part 9 Opening 10 Straw fold scheduled part 11 Packaging container (container drink)
12 Container body 13 Flange

Claims (8)

A synthetic resin container lid capable of holding a part of the periphery of the closed part in an unbroken state and breaking the other part to form an opening to be a drinking mouth or a spout,
A pull tab provided at the back of the closed portion;
An outer edge break planned portion and an outer edge return planned portion provided around the closed portion;
A central planned break portion extending from the back side of the closed portion and capable of forming an extended portion of a predetermined length in cooperation with the outer edge planned break portion,
A locking portion for holding the opening state of the closing portion, which is a back portion of the closing portion and is provided in a portion where the extension portion is to be formed, and the locking portion is on the back side of the closing portion container closure, characterized in that provided in the. The container lid according to claim 1, wherein the locking portion is a protrusion. Container closure according to claim 1 or 2, characterized in that the locking portion with a lockable engaged portion. Central breakable portion is provided in parallel to the outer breakable portion, to any one of claims 1 to 3, in cooperation with the outer edge breakable portion, characterized in that capable of forming a strip-shaped extension of a predetermined length Container lid as described. The container lid according to any one of claims 1 to 4 , wherein a portion for forming a straw return that can form a straw insertion port is provided in a portion where the extension portion is to be formed. A container closure according to claim 1-5, packaging containers, characterized in that a container body. The packaging container according to claim 6 , wherein the container main body has a flange, and the locking portion of the container lid can be hooked on the flange to maintain the open state of the closed portion of the container lid. . A container-containing beverage obtained by filling a container body with a liquid content and heat-sealing the container lid according to any one of claims 1 to 5 .