JP2009057099A - Unpluggable cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an unpluggable cap preventing a part of a pull ring from being elongated or cut by deformation of the pull ring in unplugging. <P>SOLUTION: The cap attached to a vessel body has a bottom wall, and a removal part of a thin and weakened part becoming a spout is mounted on the bottom wall. A strut pulling up the removal part during opening and the pull ring connected to the strut are mounted in a predetermined position of the upper surface of the removal part. The pull ring has a connection part upward extending in a V-shape from both ends of the strut and a circular finger hold part, and the cross-sectional area of the portion other than the central part of the finger hold part of the pull ring, at least the connection part, is as large as or larger than the cross-sectional area of the central part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stopper cap.

2. Description of the Related Art Conventionally, a cap that is attached to a mouth tube portion of a container that stores a content liquid, a pull-out type cap that has a pull ring provided at a removal portion of the cap and opens an opening has been known.
Further, in order to make it easier to put a finger on the plug, a plug cap with a pull ring formed at each end of a V-shaped support column erected on the cap removal portion is also known (for example, Patent Document 1).
JP 2001-322663 A

However, in the conventional plug-type cap of Patent Document 1, since the shape of the pull ring changes in a complicated manner when plugged, if the strength of the ring is weak, a part of the pull ring may stretch when the ring is pulled, There was a problem that it could not be unplugged due to cutting.
In particular, compared to the generally known type in which a linearly formed column is connected to a part of the pull ring, the connecting portion between each tip of the column formed in a V shape and the pull ring The vicinity tends to grow easily.

  An object of the present invention is to solve the above-mentioned problems, and to prevent the pull ring from being partially extended or cut off with respect to deformation of the pull ring at the time of plugging. An object is to provide a formula cap.

  In order to solve the above-mentioned problems, the present invention provides a cap mounted on a container body as a stopper-type cap. The cap has a bottom wall, and the bottom wall is removed by a thin weakened portion that opens a spout. A support column is provided at a predetermined position on the upper surface of the removal unit, and a column that pulls up the removal unit at the time of opening and a pull ring that is connected to the column are provided. The pull ring is formed in a V shape from both sides of the column. It includes a connecting portion extending upward and a finger hook portion formed in an annular shape, and has a cross-sectional area of the other portion of the pull ring, at least the cross-sectional area of the connecting portion, compared to the size of the cross-sectional area of the central portion of the finger ring portion of the pull ring. A configuration characterized in that the size is the same or larger is adopted.

  As an example of the struts, the struts are two struts extending downward from the lower ends of both connecting portions of the pull ring and standing a little apart on the upper surface of the removal portion, and the size of the cross-sectional area of each strut However, a configuration is adopted in which the size is the same as or larger than the size of the cross-sectional area of the central portion of the finger ring portion of the pull ring.

  In the cap attached to the container body, the pull ring includes a connecting portion extending in a V shape from both sides of the support column, and a finger hook portion formed in an annular shape from both ends of the connecting portion. Compared with the size of the cross-sectional area of the central part of the pull ring, the pull ring finger rest is pulled by the other part of the pull ring, at least the cross-sectional area of the connecting part being the same or larger. At this time, it is possible to prevent other portions of the pull ring, in particular, the connecting portion from extending or cutting.

  Next, examples of the stopper cap of the present invention will be described with reference to the drawings.

  In FIG. 1, A is a cap body that is fitted to the container body and is closed by attaching a lid to the top.

  As shown in FIGS. 1 and 2, the cap main body A includes a bottom wall 1 and a pour tube 2 standing on the periphery of the bottom wall 1.

  The bottom wall 1 is provided with a removal portion 4 by a thin weakened portion 3 that opens the spout, and at a predetermined position on the upper surface of the removal portion 4, a support column 5 that pulls up the removal portion 4 when opened, A pull ring 6 connected to the column 5 is provided.

As shown in FIG. 2, the pull ring 6 is a belt-like object, and is formed by connecting the connecting portions 7 on both sides connected in a V shape from both sides of the column 5, and the circle excluding the column 5 side extending from both ends of the connecting portion 7. The connecting portion 7, which is composed of a finger rest portion 8 formed in an annular shape, extends curvedly toward the outside and also extends in an arc shape in the upward direction.

When the pull ring 6 is pulled, the tensile stress of each part needs to be equal to or higher than the set stress so that the strip forming the pull ring 6 does not stretch or break.
Therefore, a constant cross-sectional area is required with respect to the direction of the tensile force applied at each part.
As a cross section, when a plane substantially orthogonal to the longitudinal direction (stretching direction) of the belt-like object (that is, the minimum cross section as a cross section) is taken, the side of the support 5 of the finger rest 8 is larger than the cross sectional area 8a of the center of the finger rest 8. The sizes of the cross-sectional area 8b near the end, the cross-sectional area 7a of the connecting portion 7, and the cross-sectional area 7b near the side of the column 5 of the connecting portion 7 are the same or larger.

Next, the function and effect of the plug cap of the present embodiment will be described.
The cap body A of the present application is removed from the bottom wall 1 because the connecting portion 7 of the pull ring 6 extends in a V shape from the side of the column 5 and the finger rest 8 is inclined upward in the forward direction. When the part 4 is unplugged, it is easy to put a finger on the finger rest part 8.

  Moreover, since the cross-sectional area 8b, the cross-sectional area 7a, and the cross-sectional area 7b of the pull ring 6 are the same as or larger than the size of the cross-sectional area 8a of the finger hook portion 8, the finger hook portion of the pull ring 6 It is possible to prevent a part of the pull ring 6 from extending or breaking before the removal portion 4 is unplugged from the bottom wall 1 when the front side portion of 8 is pulled and pulled.

  In the above embodiment, the connecting portion 7 of the pull ring 6 is formed in a V shape from both sides of the support column 5 upward and forward and outward and the tip is curved and extends outward in an arc shape. As an example, as shown in FIG. 3, the connecting portion 7 of the pull ring 6 may be formed so as to extend linearly in a V shape from both sides of the support column 5 toward the upper side and the front outer side. The effect is obtained.

Next, a second embodiment in which the shape of the pull ring of the first embodiment is changed will be described.
The same components as those of the first embodiment of the present embodiment are denoted by the same reference numerals, detailed description thereof is omitted, and differences will be mainly described.

  As shown in FIG. 4, the bottom wall 1 of the cap body A is provided with a removal portion 4 by a thin weakened portion 3 that opens a spout. Two struts 10 erected at a distant position and a pull ring 11 connected from the respective struts 10 are provided.

  The pull ring 11 has a connecting portion 12 extending outward from the upper end portions of the two support columns 10 and fingers formed in an annular shape extending upward from both ends of the connecting portion 12 and notching the support column 10 side. A hook 13 is provided.

As shown in FIG. 4A, compared to the cross-sectional area 13 a of the central portion of the finger hook portion 13, the other cross-sectional area 13 b of the finger hook portion 13, the cross-sectional area 12 a of the connecting portion 12, and the column of the connecting portion 12 The size of the cross-sectional area 12b in the vicinity of the 10 side portions and the cross-sectional area 10a at the lower end of the column 10 are formed to be equal to or larger than each other.
If the size of the cross-sectional area is equal to or greater than the cross-sectional area 13a at the center of the finger hook portion 13, as shown in FIG. You may change and form.

Next, the function and effect of the plug cap of the present embodiment will be described.
In the cap body A of this embodiment, each connecting portion 12 of the pull ring 11 and each support column 10 are formed in a Y shape when viewed from the support column 10 side. Since the force is efficiently applied to the removal portion 4 when the finger hook portion 13 is pulled, the removal portion 4 can be unplugged from the bottom wall 1 with a weak force.

  Since the cross-sectional area 13b, the cross-sectional area 12a, the cross-sectional area 12b of the pull ring 11 and the cross-sectional area 10a of the support column 10 are formed in the same size as the cross-sectional area 13a of the finger rest 13, the pull ring 11 When pulling the finger on the front side portion of the finger rest portion 11 of 11 and pulling out the removal portion 4 from the bottom wall 1, the pull ring 11 and a part of the column 10 are stretched or cut off. Can be prevented.

Moreover, since the two support | pillars 10 of the pull ring 11 are set up a little apart on the removal part 4 upper surface, at the time of shaping | molding of the cap main body A, it is easy to remove the metal mold | die which shape | molds the pull ring 11. it can.
Other functions and effects are the same as those of the first embodiment.

In each of the above embodiments, the cap body is used. However, the present invention relates to a wall portion provided with a pull ring that is opened by removing the removal portion of the cap-opening cap. Moreover, it is good also as a structure of the wall part which removes the removal part of the inside plug with which it installs in a cap instead of a cap main body, and opens.
That is, the structure of the pull ring of the present application can be adopted as long as the wall part is opened by removing the removal part, and the other structure is not limited to the structure of each of the above embodiments.

It is a cross-sectional elevation view of the cap cap of the first embodiment of the present invention. It is explanatory drawing of the bottom wall of a stopper cap, (a) is a perspective view, (b) is a principal part rear view. It is explanatory drawing of the stopper type cap bottom wall of another Example, (a) is a perspective view, (b) is a principal part rear view. It is explanatory drawing of the bottom wall of the stopper type cap of 2nd Example, (a) is a perspective view of an Example, (b) is a perspective view of the modification of (a).

Explanation of symbols

A Cap 1 Bottom wall 2 Pouring tube 3 Weakening part 4 Removal part 5, 10 Post 6, 11, Pull ring 7, 12 Connecting part 8, 13 Fingering part 7a, 7b, 8a, 8b, 10a, 12a, 12b, 13a, 13b Cross section

Claims (2)

In the cap attached to the container body,
The cap has a bottom wall,
The bottom wall is provided with a removal part by a thin weakened part opening the spout,
At a predetermined position on the upper surface of the removal unit, a support column that pulls up the removal unit at the time of opening, and a pull ring that is connected to the support column are provided.
The pull ring includes a connecting portion extending upward in a V shape from both sides of the support column, and a finger hook portion formed in an annular shape.
Completion of plugging, characterized in that the cross-sectional area of the other part of the pull ring, at least the cross-sectional area of the connecting part, is the same or larger than the size of the cross-sectional area of the center part of the finger hook part of the pull ring Expression cap.   The struts are two struts that extend downward from the lower ends of both connecting parts of the pull ring and are set up slightly apart from the upper surface of the removal part. The size of the cross-sectional area of each strut is 2. The cap according to claim 1, wherein the cap is formed to have the same or larger size than the cross-sectional area of the central portion of the portion.

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