JP5198888B2 - Pouring cap - Google Patents

Description

  The present invention relates to a pouring cap that is fitted and fixed to the mouth of a container by a stopper. When the container is discarded, the pouring cap is removed by a simple operation to effectively use resources by separating and collecting. It is something to try.

  A stopper-type pouring cap in which an annular groove opened downward is formed by concentric double peripheral walls located inside and outside the mouth of the container, and the mouth of the container is fitted and fixed in this annular groove. Has been frequently used in containers for edible oil, soy sauce, sauces, beverages, etc. in recent years.

  By the way, with this type of dispensing cap, it is not easy to remove the dispensing cap from the mouth of the container when the used container is discarded, and it is difficult to effectively use resources by separate collection. It was.

As a prior art in this regard, an appropriate number of deep grooves are provided in the outer cylinder of the inner plug to be fitted to the container neck and neck, and the bottom of the groove is formed as a thin flexible part or broken part. The holding cylinder that hangs down from the bottom end of the cylinder through the outward flange-like top wall is fitted to the outer cylinder, while the outward flange-like top wall is provided with a few easy-to-break connectors and is surrounded by a separating groove. In recent years, there has been known a container with an inner cap that serves as a nozzle provided with engaging projections that come into contact with each other in rotation of the female screw cylinder in the tightening direction from each facing surface of the groove (see, for example, Patent Document 1). At the same time, a different type of pouring cap has been demanded, and its development has been desired.
Japanese Utility Model Publication No. 7-2250

  An object of the present invention is to propose a novel pouring cap that can be firmly fixed to the mouth of a container and can be easily removed by a simple operation.

The present invention includes an inner stopper that has an extraction cylinder for extracting contents in a container and is fixed and held at the mouth of the container, and is detachably screwed to the outer peripheral wall of the inner stopper. In a pouring cap provided with a lid that houses the exit tube portion inside,
The inner plug is formed with an inner wall and an outer wall, and an annular groove for inserting and fitting the mouth portion of the container with a stopper is provided between them,
The lid body has a threaded portion that engages with the outer peripheral wall of the inner plug, and a main body portion that defines and forms a storage space for the extraction tube portion inside thereof, and the main body portion below the main body portion. the outer wall was囲撓separately, a cylindrical portion to suppress diameter of the outer wall of the intermediate stopper when said in plug is attached to the opening portion, the cylindrical portion and disposed therebetween of the body portion, It consists of a lifting ring that can be separated from the main body,
It said pulling ring, provided a non-cleavable linking piece against the cylindrical portion Ri integrally connected to the cylindrical portion at least one place, and at least one breaking connection piece for connecting to disconnectably against the cylindrical portion ,
Between the outer wall of the inner plug and the cylindrical portion of the lid, there is provided an anti-rotation portion that links the outer wall and the cylindrical portion so that they cannot rotate with respect to each other when mounted on the mouth of the container. It is a pouring cap.

  In the pouring cap having the above-described configuration, it is desirable to provide a plurality of slits that are opened toward the lower end on the outer wall of the inner stopper and that can be easily detached from the mouth of the container.

  As the rotation preventing portion, a vertical rib and a vertical rib or a vertical groove linked to the vertical rib can be applied.

  In addition, a gap is provided between the outer wall and the cylindrical portion, and the vertical rib formed on the outer surface of the outer wall is induced by the elastic diameter expansion of the outer wall accompanying the plugging into the vertical groove formed on the inner surface of the cylindrical portion. By inserting, the outer wall and the cylindrical portion can be linked so as not to rotate.

  When the container is stoppered with the lid attached, the outer wall of the stopper is displaced toward the cylinder of the lid and the stopper is located between them. In addition, the lid (cylinder part) is linked in a non-rotatable manner, and the expansion of the outer wall is suppressed by the heel effect of the cylinder part, so that the inner plug is securely fixed and held at the mouth of the container.

  When the pulling ring is raised and the tube portion is pulled through the connecting portion, the tube portion is lifted together with the pulling ring, and the linkage with the outer wall of the inner plug is released (the tube portion is detached from the outer wall). When the linkage between the outer wall of the inner plug and the cylindrical portion is released, the outer wall can be freely displaced outward (diameter expansion), so that it can be easily detached from the mouth of the container simply by pulling up the inner plug.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view showing an embodiment of a dispensing cap according to the present invention.

In the figure, reference numeral 1 denotes the mouth of the container, and 2 denotes an inner stopper that is fixed and held in the mouth 1 of the container. This inner plug 2 has a dispensing cylinder part 2a for dispensing the contents in the container, and an annular body 2b having a threaded part n formed on the outer peripheral wall at the lower end of the dispensing cylinder part 2a, inner wall 2c ₁ and outer walls 2c ₂ is provided integrally connected to the lower end of the annular body 2b. An annular groove m opened downward is formed between the inner wall 2c ₁ and the outer wall 2c ₂ , and the inner plug 2 is formed by inserting and fitting the mouth 1 of the container into the annular groove m by a stopper. Is fixed to and held in the mouth 1 of the container. The outer wall 2c ₂ of the inner plug 2, as shown the perspective view in FIG. 2, includes a plurality of slits S having an open end at the lower end.

  Further, 3 in FIG. 1 is a thin-walled sealing wall integrally formed on the inside of the dispensing tube portion 2a, and 4 is a planned breaking groove provided in the sealing wall 3, and the sealing wall 3 along the planned breaking groove 4 A pour opening is formed by tearing.

Reference numeral 5 denotes a pull ring that controls the tearing of the sealing wall 3, reference numeral 6 denotes a column that connects the pull ring 5 to the sealing wall 3, and reference numeral 7 denotes a lid that accommodates the dispensing cylinder portion 2a. Cover 7 has a threaded portion n ₁ that engages with the threaded portion n of the annular body 2b of the inner plug 2, a body portion 7a of the cup-shaped to define a receiving space of the pouring cylindrical part 2a on its inner side, The cylinder portion 7b is disposed below the main body portion 7a and surrounds the outer wall 2c ₂ with a gap t (see FIG. 3) therebetween, and is disposed between the cylindrical portion 7b and the main body portion 7a. It consists pulling ring 7c that linked disconnected via a plurality of breaking connecting pieces P _1, P _2.

8 is a plurality of vertical ribs (may be knurled around the entire circumference) arranged at intervals along the outer surface of the outer wall 2c ₂ , and 9 is linked to the vertical ribs 8 provided on the inner surface of the cylindrical portion 7b. It is the vertical groove used as a plurality of arrangements (a knurled shape provided over the entire circumference). The vertical ribs 8 and the vertical grooves 9 constitute a detent portion when they are linked to each other, and the vertical grooves similar to the vertical ribs 8 can be applied to the vertical grooves 9. The vertical rib 8 may be a vertical groove and the vertical groove 9 may be a vertical rib. Further, it is of course possible to form the rotation stop portion by pressure contact without providing the vertical rib 8 and the vertical groove 9.

  Further, 10 is a knob integrally provided in front of the lifting ring 7c, and 11 is a connecting piece for integrally connecting the lifting ring 7c and the cylindrical portion 7b at one or a plurality of positions opposed to the knob 10. Yes (the one shown is shown as one location).

Before capping the dispensing cap and inside plug 2 and the lid 7, as shown in FIG. 3, assembled only by engagement by threaded portion n, n _1, between the outer wall 2c ₂ and the cylindrical portion 7b There is a gap t, and the assembly and removal can be easily performed.

When the lid 7 is plugged in the state in which it is assembled to the inner plug 2, as shown in FIG. 4 by enlarging the main part of FIG. 1, the outer wall 2c ₂ of the inner plug ₂ is enlarged in diameter (toward the outside). The inner plug 2 and the lid 7 are linked so as not to be rotatable by the longitudinal ribs 8 and the longitudinal grooves 9 constituting the rotation preventing portion. The lid 7 cannot be removed from the inner plug 2 due to the linkage of the vertical ribs 8 and the vertical grooves 9, and the cylindrical portion 7b of the lid 7 acts as a hook that restrains the periphery of the outer wall 2c _{2 so} that the inner plug 2 is It is firmly fixed to the mouth 1 of the container.

When rotating the body portion 7a of the lid 7 in this state, pulling the ring breaking connecting piece P ₁ connecting the 7c and body portion 7a is torn off, it is possible to open the container, as shown in FIG.

In order to remove the dispensing cap from the mouth 1 of the container upon disposal of the container, it is only necessary to pick up the knob 10 and raise the lifting ring 7c, thereby raising the lifting ring 7c and the cylinder 7b as shown in FIG. The broken connecting piece P2 connecting the _two is torn off and the cylindrical portion 7b is pulled out from the inner plug 2 by the connecting piece 11.

When the cylindrical portion 7b is pulled out, the heel effect disappears, so the outer wall 2c ₂ can be freely displaced outward, and the inner plug 2 can be pulled out from the mouth 1 of the container simply by grasping the lifting ring 7c and lifting it upward. it can. Displacement of the outer wall 2c ₂ by providing slits S becomes even easier.

  As described above, the pouring cap in the present invention can be easily fixed to the mouth 1 of the container and easily removed by simple operation, and in particular, further increases the recycling rate of resources by separate collection. Can do.

For example, of the fracture connecting piece P _1, P _2, by setting smaller than the strength at break linking piece P ₂ breaking strength of the breaking coupling piece P _1, to perform a preferential removal of the body portion 7a Is possible.

In addition, the broken connecting pieces P ₁ and P ₂ may be a belt-like one that extends continuously around the pulling ring 7c, and although this is not particularly limited, the lid is similar to the above. 7 of the body portion 7a to set the strength of the breaking coupling piece P ₁ so that it can be removed preferentially to be smaller than the strength of the broken piece P _2.

May be applied to a structure as shown in FIG. 7 in the case where the intensity of the breaking coupling piece P ₂ causes the increased and pulling ring 7c may be difficult is concerned.

In FIG. 7, 12 is a locking claw integrally provided at the lower end of the lifting ring 7c, and 13 is a locking claw integrally provided at the upper end of the cylindrical portion 7b and engaged with the locking claw 12. Or can be provided at multiple locations). The locking claws 12 and 13 are engaged with each other when the main body portion 7a of the lid body 7 is rotated in the direction of removal to prevent rotation and pulling up. By providing the locking claws 12 and 13, strength at break linking piece P ₂ can be set low.

  In this structure, the lifting ring 7c can be caused smoothly by providing an inclination in the engaging portion of the locking claws 12 and 13. The shapes of the locking claws 12 and 13 may be as shown in FIGS. 8A to 8B, and the shape is not particularly limited.

  An extraction cap that can be firmly fixed to the mouth of the container and can be easily removed by a simple operation can be provided.

It is the figure which showed embodiment of the extraction | pouring cap according to this invention. It is an external appearance perspective view of the inner stopper shown in FIG. It is the figure which showed the assembly | attachment condition of the inside plug and the cover body about the principal part. FIG. 2 is an enlarged view showing a main part of FIG. FIG. 2 is an external perspective view of the pouring cap shown in FIG. 1 (with the main body portion of the lid removed). It is the figure which showed the removal condition of the extraction | pouring cap. It is the figure which showed other embodiment of the extraction | pouring cap according to this invention. (a)-(c) is the figure which showed the other shape of the latching claw.

Explanation of symbols

1 Container mouth
2 Inside plug
3 Sealed wall
4 Planned fracture groove
5 Pull ring
6 Prop
7 Lid
8 Vertical rib
9 Vertical groove
10 Pick section
11 Connecting piece
12 Locking claw
13 Locking claw
S slit

Claims (4)

An outlet tube portion for discharging the contents in the container, and an inner plug fixed and held at the mouth of the container, and an outer peripheral wall of the inner plug are detachably screwed to the outlet tube portion In a pouring cap provided with a lid for storing the inside,
The inner plug is formed with an inner wall and an outer wall, and an annular groove for inserting and fitting the mouth portion of the container with a stopper is provided between them,
The lid body has a threaded portion that engages with the outer peripheral wall of the inner plug, and a main body portion that defines and forms a storage space for the extraction tube portion inside thereof, and the main body portion below the main body portion. the outer wall was囲撓separately, a cylindrical portion to suppress the diameter of the outer wall of the intermediate stopper when said in plug is attached to the opening portion, the cylindrical portion and disposed therebetween of the body portion, It consists of a lifting ring that can be separated from the main body,
It said pulling ring, provided a non-cleavable linking piece against the cylindrical portion Ri integrally connected to the cylindrical portion at least one place, and at least one breaking connection piece for connecting to disconnectably against the cylindrical portion ,
Between the outer wall of the inner plug and the cylindrical portion of the lid, there is provided an anti-rotation portion that links the outer wall and the cylindrical portion so that they cannot rotate with respect to each other when mounted on the mouth of the container. The pouring cap.   2. The dispensing cap according to claim 1, wherein the outer wall of the inner plug has a plurality of slits opened toward the lower end.   The pouring cap according to claim 1 or 2, wherein the detent portion includes a vertical rib and a vertical rib or a vertical groove linked to the vertical rib.   Any one of claims 1 to 3, wherein a gap is provided between the outer wall and the cylindrical portion, and the outer wall and the cylindrical portion are linked so as not to rotate by inducing an elastic diameter expansion of the outer wall accompanying the stopper. The pouring cap described in 1.

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