JP2005320046A - Simply openable container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simply openable container having a simple opening formed by breaking thinned lines on a lid part, in which the tip of a straw can be easily aligned with the center of the simple opening and the thinned lines can be surely broken by the straw. <P>SOLUTION: A recess 17 having one point on the lid part (top face part 11 of a cap 1) as the lowest point to be inwardly recessed from the external surface side of the lid part (top face part 11) and consisting of a tilted surface 17a tilted upward and outward from the lowest point is formed as the simple opening 16. In addition, at least three or more thinned lines 18 having the lowest point of the recess 17 as the intersection and radially extending to the vicinity of the outer periphery of the recess 17 are formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention opens a simple opening formed in a lid portion that closes the opening of a container by inserting a straw, thereby allowing the container to be opened by a straw that penetrates the lid portion without removing the lid portion from the opening of the container. It is related with the simple opening-type container which enabled it to drink the inside drink.

By forming a simple opening that can be opened by inserting a straw into the lid that closes the opening of the container filled with beverage, the container can be removed by a straw without removing the lid from the opening of the container. In order to be able to drink the beverage in the past, as a concrete structure of the simple opening portion for that purpose, a lid portion that closes the opening portion of the container (the lid material of the container, the straw hole of the container is closed) It has been conventionally known from Patent Documents 1 and 2 below that a radial thin line (a cut portion, a thin groove portion) that can be broken by a straw is formed as a simple opening portion for the sealing portion). Yes.
JP 7-61469 A JP 2002-362548 A

  By the way, in any conventionally known simple opening type container provided with a simple opening as described above, since a thin radial line is formed on the flat surface of the lid portion, the simple opening is made at the tip of the straw. When opening the container by pressing the portion, the straw must be pressed after aligning the tip of the straw with the center of the flat simple opening (intersection of each thin line) while looking closely Otherwise, there is a possibility that the position of the straw is displaced and the thin line cannot be sufficiently broken.

  An object of the present invention is to solve the above-described problems. Specifically, for a simple opening type container in which a simple opening portion by breaking a thin-walled line is formed in the lid portion, the tip of the straw is attached. It is an object of the present invention to make it possible to easily align with the center portion of the simple opening and to surely break the thin line with a straw.

  In order to solve the above-described problems, the present invention provides a simple opening in which a thin line that can be broken by pressing with a straw is formed in a lid portion that closes the opening of a container as a simple opening that is opened with a straw. In an open-type container, as a simple opening, it is composed of an inclined surface that inclines upward and outward from its lowest point, with one point on the lid part as the indent from the outer surface side of the lid part And at least three or more thin lines that extend radially to the vicinity of the outer edge of the recess with the lowest point of the recess as an intersection. .

  According to the simple opening-type container of the present invention as described above, since the intersection of a plurality (three or more) of thin-walled lines is located at the lowest point of the recess, the simple opening is opened by pressing with a straw. When doing so, the tip of the straw can be easily guided along the inclined surface of the recess toward the intersection of a plurality of thin-walled lines (the center of the simple opening), so the tip of the straw is placed in the recess By pressing the straw in a state, the vicinity of the intersection of the thin line can be reliably broken by the pressing force with the straw without shifting the tip of the straw. Then, all the thin lines are ruptured radially from there, and the portion between each thin line (inclined surface of the concave portion) is pushed down into the container with a straw as an opening piece, thereby reliably opening the simple opening. be able to.

  For a simple opening type container where a simple opening due to the breakage of the thin line is formed in the lid part, the tip of the straw can be easily aligned with the center of the simple opening, and the thin line can be reliably secured by the straw. As shown in the following examples as the best mode for the purpose of enabling breakage, as a simple opening, one point at the bottom of the lid part is recessed so as to be recessed inward from the outer surface side of the lid part. A recess formed by an inclined surface that is inclined upward and outward from the lowest point, and at least three that radially extend to the vicinity of the outer edge of the recess with the lowest point of the recess as an intersection This was achieved by forming the above thin line.

  The simple opening-type container of the present embodiment relates to a bottle-type beverage container such as a PET bottle or a bottle-type can, and is a bottle type in which a synthetic resin cap is attached to the mouth of such a container body. About the container, the simple opening part by the thin line which can be fracture | ruptured by the press with a straw is formed with respect to the top-plate part of the cap used as the cover part which plugs up the upper end opening part of a mouth part (mouth neck part). The synthetic resin cap used as the cap of the bottle-type container is integrally molded by injection molding or the like using a known synthetic resin for a container lid such as polyethylene or polypropylene.

  Hereinafter, this embodiment using a cap of a bottle-shaped container will be described. As shown in FIG. 1, the cap 1 in which the skirt portion 12 is suspended from the periphery of the substantially circular top plate portion 11 includes the periphery of the top plate portion 11. On the inner surface side of the container, a sealing portion 13 for sealing the container mouth portion (an annular plug that contacts the inner surface side of the container mouth portion, an annular small protrusion that contacts the upper end surface of the container mouth portion, and a container mouth portion A ring formed on the outer surface of the container mouth portion on the inner surface of the skirt portion 12 is formed with an annular outer ring in contact with the outer edge of the upper end and a sealing portion formed concentrically in order from the center side to the peripheral side. A screw part 14 is formed to be screwed with the part, and a pill fur proof band 15 locked to the container mouth part is detachably formed below the skirt part 12.

  A simple opening 16 that can be broken by a straw is formed in the top plate 11 of the cap 1. That is, in this embodiment, as shown in FIGS. 1 to 3, the center of the top plate portion 11 is set at the center of the top plate portion 11 of the cap 1, and the upper and outer sides from the lowest point. Are formed with a plurality of inverted triangular inclined surfaces 17a inclined to each other, and valley lines 17b connecting the inclined surfaces 17a, and each valley line 17b of the recessed portion 17 is It extends radially outward and upward from the lowest point of the recess 17. A thin line 18 that can be broken by a straw is formed at each valley line 17b so as to extend from the lowest point of the recess 17 to the vicinity of the outer edge.

  Further, in the present embodiment, the top plate portion 11 is connected so that the outer ends of the adjacent thin lines 18 are connected by a horizontal line at the upper portion of each inclined surface 17a of the recess 17 (near the outer edge portion of the recess 17). A linear foldable line thinner than the wall thickness of the thin wall 18 is formed as the hinge portion 19. When the thin line 18 is broken by a straw, the hinge portion of each inclined surface 17 a is pressed by the straw pressing force. The lower part is more easily displaced downward than 19.

  Specifically, as shown in FIG. 3, when viewed from the inner surface side (the lower surface side of the top plate portion) of the cap, the portion surrounded by the hinge portion 19 in the region of the concave portion 17 has a hexagonal shape. The triangular portion defined by the two adjacent thin lines 18 and the hinge portion 19 (the six triangular portions surrounded by the six thin lines and the six hinge portions) is made by a straw. After each thin-walled line 18 is broken, as shown in FIG. 6, it is pushed down as an opening piece by the pressing force of the straw 3.

  The position where the hinge portion 19 is formed in the region of the concave portion 17 may be such that the portion surrounded by the hinge portion 19 is larger than the outer diameter of the straw 3. If it is the same or slightly larger, the portion that becomes the opening piece below the hinge portion 19 is surely bent at the position of the hinge portion 19, so the portion that becomes the opening piece is easily pushed down by the straw 3 and smoothly It can be opened.

  In addition, the thin line 18 and the hinge part 19 formed in the recessed part 17 are integrally formed at the time of the injection molding of the cap 1, and the thin line 18 can be easily broken by pressing with a straw to be used. It has a breaking strength (that is, it should be thin enough to be broken by pressing with a straw). For example, when the simple opening is formed of an olefin resin such as high-density polyethylene, the thickness of the thin line 18 is not broken against the drop impact or internal pressure of the container and is pressed with a straw. Is preferably set to about 0.05 to 0.3 mm so as to be easily broken. In this embodiment, the thin line 18 is formed by providing a groove on the inner surface side of the cap 1 (top plate portion 11). However, depending on the case, the groove portion is formed on the outer surface side (or both inner and outer surfaces) of the cap. By providing, a thin line may be formed.

  Further, as shown by the two-dot chain line in FIGS. 1 and 2, the simple opening 16 (thin line 18 is formed on the upper end surface of the top plate 11 of the cap 1 in which the simple opening 16 is formed as described above. A thin film-like seal 20 is attached by heat sealing or the like so as to peel off the formed concave portion 17) from above, so that dust may be deposited on the concave portion 17 during distribution and sale of the product. Or the thin line 18 of the concave portion 17 can be prevented from being broken by mistake.

  According to the simple opening type container of the present embodiment in which the simple opening 16 is formed in the top plate portion 11 of the cap 1 as described above, the intersection of the plurality of thin lines 18 is located at the lowest point of the recess 17. Therefore, when opening the simple opening 16 by pressing with a straw, the inclined surface 17a and the valley line 17b of the recess 17 serve as a guide, so that the straw can be moved along the inclined surface 17a and the valley line 17b. The tip can be easily guided toward the intersection of the plurality of thin lines 18 (the center of the simple opening 16).

  That is, when the simple opening is opened with a straw whose tip is cut obliquely and the cutting edge is sharp, the leading edge of the straw 3 is formed on the inclined surface 17a and valley line 17b of the recess 17 as shown in FIG. The tip of the straw 3 can be brought into contact with the intersection of the plurality of thin-walled lines 18 by sliding down along the line. Although not shown, when the simple opening is opened by a straw having a flat tip, the lower end edge of the straw slides downward along the inclined surface of the recess, so that it is in the vicinity of the intersection of the plurality of thin lines. The lower end edge of the straw can be brought into contact with.

  Then, by pushing down the straw 3 from this state, the intersection (or the vicinity thereof) of the thin line 18 can be reliably broken by the pressing force of the straw 3 without shifting the tip of the straw 3. As described above, the intersection (or the vicinity thereof) of the thin line 18 is broken by the tip of the straw 3 and then the straw 3 is further pushed down, so that the thin line 18 is broken radially outwardly from the intersection. In addition, the break reaches the vicinity of the outermost end of the thin-walled line 18 and, as shown in FIG. 6, the lower part from the hinge part 19 is bent inward of the container, so that the straw 3 can be easily inserted into the container. Will be.

  In this embodiment, since the concave portion 17 is formed in a polygonal pyramid shape with respect to the straw 3 having a circular cross section, each opening piece (of each inclined surface 17a is formed by the straw 3 as shown in FIG. In the state where all of the lower part of the hinge part 19) is pushed inward of the container and the straw 3 is inserted into the container, as shown in FIG. 5, the outer peripheral surface of the straw 3 and the opening part of the cap (concave part 17) A gap is formed between the two. As a result, when the beverage in the container is sucked and drunk by the straw 3 penetrating the concave portion 17 of the top plate portion 11 of the cap 1, the gap between the outer peripheral surface of the straw 3 and the opening portion of the cap (concave portion 17). Since the gap acts as an air introduction part, external air can freely flow into the container, and the contents can be sucked smoothly.

  As mentioned above, although one Example of the simple opening-type container of this invention was described, this invention is not limited only to the specific structure shown in said Example, For example, it is in the top plate part of a cap. In this embodiment, the concave portion to be formed is formed in the central portion of the top plate portion. However, the concave portion may be formed at an appropriate position of the top plate portion, and the center of the concave portion is the lowest point. However, the lowest point may be displaced from the center of the concave portion, and the concave portion is formed in a polygonal pyramid shape, but it may be a conical concave portion.

  The number of thin lines (inclined surfaces between the thin lines) is six in this embodiment (six inclined surfaces between the thin lines), but there are three (in between the thin lines). In this embodiment, the plane shape (that is, the longitudinal cross-sectional shape along the radial direction is the reverse of the straight line) is sufficient. However, the longitudinal cross-sectional shape along the radial direction may be an arcuate curved surface. Further, as for the hinge portion of the opening piece, if the thickness of the inclined surface is made thin as a whole, it is not particularly necessary to form the hinge portion.

  In addition to the specific structure of the simple opening as described above, the object on which the simple opening is formed is not limited to the top plate portion of the threaded cap shown in the embodiment, but is snap-engaged. It may be a top plate portion of a snap cap that is attached to the container mouth portion by a metal plate, a top plate portion of a composite cap having a metal skirt portion, or the like. Not only the top plate portion, but also a plate-like lid material heat-sealed to the opening flange portion of the container, a sealing portion that closes the straw hole of the container, etc., as long as it becomes a lid portion that closes the opening portion of the container, etc. Needless to say, the design can be changed as appropriate.

The partial cross section side view which shows a part with sectional structure about the simple opening type cap which concerns on one Example of the simple opening type container of this invention. The top view which shows the state seen from the upper direction of the cap shown in FIG. The bottom view which shows the state seen from the downward direction of the cap shown in FIG. The partial cross section side view which shows the state before opening a simple opening part with a straw about the cap shown in FIG. The top view which shows the state after opening a simple opening part with the straw about the cap shown in FIG. The longitudinal cross-sectional view along the AA line of the cap shown in FIG.

Explanation of symbols

1 Cap (lid)
DESCRIPTION OF SYMBOLS 3 Straw 11 Top plate part (cap) 12 Skirt part 16 (cap) Simple opening part 17 Recessed part 17a (Recessed part) Inclined surface 17b (Recessed part) Valley line 18 Thin line 19 Hinge part

Claims (4)

  As a simple opening to be opened by a straw, the outer surface of the lid part is used as a simple opening in a simple opening type container in which a thin line that can be broken by pressing with a straw is formed on the lid part that closes the opening of the container. A concave portion is formed with an inclined surface that is inclined upward and outward from the lowermost point, with one point of the lid portion being the lowest point so as to be recessed inward from the side, and the lowermost portion of the concave portion A simple open-type container characterized in that at least three or more thin-walled lines extending radially near the outer edge of the recess are formed with the point as an intersection.   The linear hinge part is formed on the straight line which connects the outer edge parts of each adjacent thin wall line so that it can be bent more thinly than a top-plate part, The Claim 1 characterized by the above-mentioned. Simple open container.   The concave portion is a polygonal pyramid-shaped concave portion composed of a plurality of inverted triangular inclined surfaces inclined upward and outward from the lowest point, and a valley line connecting the inclined surfaces. The simple opening-type container according to claim 1 or 2.   The simple opening-type container according to any one of claims 1 to 3, wherein the lid portion in which the simple opening is formed is a top plate of a cap having a top plate and a skirt.

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