JP3883169B2 - Plug - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner plug.
[0002]
[Prior art]
As an inner plug to be attached to the container body, a peripheral wall is fitted to the outer periphery of the neck and neck portion and attached to the container body. There are some that attempt to prevent getting out by getting over and engaging. Many of these are not considered to be removed once attached to the container body.Therefore, many of them are provided with a spout, and the container body or the inner plug itself is detachably attached with a cap. Many.
[0003]
As a specific example, the top opening of the container body neck is covered with a top wall extending from the upper edge of the peripheral wall, and a pouring tube is erected on the top wall portion, and an annular thin-walled break is formed on the top wall in the pouring tube. Forming a cutout part surrounded by the part, and pulling up the pull ring at the tip of the rod-like protrusion erected on the cutout part to break the thin breakage part to remove the cutout part and to open the spout Things.
[0004]
[Problems to be solved by the invention]
In recent years, the recycling of synthetic resins has progressed, and even when it is disposed of, it is separated and disposed of and processed. Therefore, the inner plug is also removed from the container body when disposed after use. It is hoped that. On the other hand, this type of inner plug is naturally required to be securely fitted to the container body and not easily removed.
[0005]
The present invention has been made in view of the above points, and can be firmly fixed to the container body during use, and can be easily removed and separated at the time of disposal, and the structure is simple and the synthetic resin is integrated. The present invention proposes an inner plug having various advantages such as being easy to manufacture because it can be molded.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the inner plug of the present invention is an inner plug that is fitted with a peripheral wall 8 fitted to the outer periphery of the mouth neck portion 5 of the container body 2 and is pulled out from the peripheral wall 8 of the inner plug body 1A. The fitting protrusion 9 is fitted to the lower end portion of the inner surface of the peripheral wall 8 through the flange 19 extending inward from the lower end edge of the fitting cylinder 18 fitted to the outer periphery of the peripheral wall 8. And a ring member 7 configured to be capable of opening the ring by providing a thin-walled rupture portion 21 that vertically cuts one side end position of the finger-hanging piece 20 projecting from the upper end edge of the fitting cylinder 18, It was configured as a synthetic resin inner plug characterized in that the mating ridge 9 was moved over and engaged with a locking ridge 6 provided around the outer periphery of the container body neck portion 5 to prevent it from coming out.
[0007]
Further, the inner plug according to the second aspect of the present invention is configured as the inner plug according to the first aspect in which a thin broken portion 21a is provided vertically on the fitting tube 18 at the other end of the finger-hanging piece 20.
[0008]
Further, the inner plug according to claim 3 is the inner plug according to claim 1, wherein the engaging protrusion 9 is discontinuous, and the thin-walled fracture portion 21 is formed at a position where the engaging protrusion 9 is not formed. Configured.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
The inner plug 1 of the present invention is configured to be fitted and fixed to a container body 2 and to be removed from the container body 2 and discarded separately at the time of disposal.
[0011]
The container 2 to be mounted can be made of synthetic resin, glass or the like, and can be used that has a locking projection for locking the inner plug around the mouth and neck. The container body 2 in the illustrated example has a mouth and neck portion 5 standing up from a trunk portion 3 via a shoulder portion 4, and a locking projection 6 is provided around the outer periphery of the mouth and neck portion 5.
[0012]
The inner plug 1 according to the present invention has a ring member 7 fitted and fixed to the inner plug main body 1A as shown in the drawing, and a peripheral wall 8 is fitted to the outer periphery of the container body neck portion 5 so that the inner peripheral surface of the peripheral wall 8 is fitted. The engaging ridges 9 projecting on the outer side of the outer periphery of the mouth and neck portion 5 are engaged with the engaging ridges 6 around the outer periphery of the mouth-and-neck portion 5 so as to be prevented from coming out. Therefore, there is a type that does not remove until it is provided, or a part that has a spout or a part that should be a spout, and that has a cap attached to the container body or the inner plug itself. Things.
[0013]
In the illustrated example, a top wall 10 having a lower surface abutting on the upper surface of the neck portion 5 is extended inward from the upper edge of the peripheral wall 8, and a pouring cylinder 11 having an upper end extending in a trumpet shape from the upper surface of the top wall 10 is erected. Yes. In addition, a seal cylinder 12 is provided below the top wall 10 so as to be tightly fitted to the inner periphery of the neck portion 5 of the container body and prevent leakage of liquid from the bottom. Further, the top wall 10 in the pouring tube 11 is provided with a cutout portion 10a surrounded by a thin broken line 13, and a pull ring 15 is horizontally extended from the tip of a rod-like protrusion 14 erected from the upper surface of the cutout portion 10a. When the pull ring 15 is pulled up, the thin broken line 13 is broken to remove the cut portion 10a, and the spout is opened. Further, the upper portion of the outer peripheral surface of the peripheral wall 8 is slightly reduced in diameter via an upward step portion 16, and the lower end portion of the inner peripheral surface is formed thinly via a downward step portion 17.
[0014]
The ring member 7 is fitted and fixed from below the peripheral wall 8 to prevent it from coming out, and is provided for easily removing the inner plug main body 1A from the container body 2 after use. The member 7 is fitted with an engaging ridge 9 on the lower end of the inner surface of the peripheral wall 8 via a flange 19 extending inwardly from the lower end edge of the fitting tube 18 fitted to the outer periphery of the peripheral wall 8. A thin-walled rupture portion 21 that vertically cuts at least one side end position of the finger-hanging piece 20 protruding from the upper end edge of the outer surface of the cylinder 18 is provided so that the ring can be opened.
[0015]
In the illustrated example, the fitting cylinder 18 is provided with a protrusion 22 around the lower portion of its inner peripheral surface, and the protrusion 22 is forcibly engaged with an upward step 16 formed on the outer surface of the peripheral wall 8. It is configured so that it does not easily come out when fitted to the peripheral wall 8. The means for preventing the ring member 7 from slipping out is not limited to that of the present embodiment. For example, a protrusion is provided around one of the outer peripheral surface of the peripheral wall 8 and the inner peripheral surface of the fitting cylinder 18, and the other is opposed to the other. You may carry out by providing the recessed line | wire with which this protrusion fits in a position.
[0016]
The engagement ridge 9 is provided to prevent the ring member 7 from coming off by being engaged with the engagement ridge 6 provided around the outer periphery of the mouth-and-neck portion 5 to prevent the ring member 7 from coming out. However, it may be discontinuous as shown in the figure. In the example shown in the figure, it extends in the circumferential direction at equal intervals, and is formed in a stepped cross section that fits into the downward stepped portion 17 of the peripheral wall 8.
[0017]
The finger-hanging piece 20 has a rectangular plate shape protruding outward from the upper edge of the outer surface of the fitting cylinder 18. And it is comprised so that the ring member 7 can be opened by cutting | disconnecting the thin fracture | rupture part 21 by grasping and pulling down.
[0018]
The thin-walled rupture portion 21 may be any one that vertically cuts at least one side end position of the finger-hanging piece 20 as described above. If the thin-walled rupture portion 21a that vertically cuts the fitting cylinder 18 at the other side end position is provided, the ring member 7 can be removed more easily, and the inner plug can be removed more easily. In the present invention, longitudinally cutting the one side end position means a portion extending from the upper end of the fitting tube 18 to the upper end of the engaging protrusion 9 via the flange 19. However, when the engagement protrusions 9 are provided discontinuously, if the thin-walled fracture portion 21 is formed at a position where the engagement protrusions 9 do not exist, it can be easily separated at the time of cutting. In the illustrated example, the thin broken portion 21a at the other side end position of the finger-hanging piece 20 is provided only in the fitting cylinder portion. However, this broken portion is configured to be vertically cut so that a part of the ring member is cut into a strip shape. You may comprise as follows. In the figure, reference numeral 23 denotes a cap.
[0019]
In the inner plug 1 configured as described above, for example, a ring member 7 as shown in FIG. 3 is fitted and fixed to the inner plug body 1A as shown in FIG. From above, the engaging ridge 9 is driven so as to get over the engaging ridge 6 and engage. In use, the pull ring 15 is pulled to remove the cutout portion 10a.
[0020]
At the time of disposal after use, if the finger-piece 20 is pulled down as shown in FIG. 7 and the thin-walled rupture portions 21 and 21a are broken, the ring member 7 is opened as shown in FIG. It can be removed from 1A, and then the inner plug body 1A can be easily removed from the container body 2.
[0021]
【The invention's effect】
As described above, since the inner plug of the present invention has the above-described configuration, it is firmly fixed once fitted into the container body 2, and there is no inconvenience such as inadvertent disconnection. Since the ring member 7 can be opened by grasping and pulling down the piece 20, the ring member can be easily removed from the peripheral wall 8, and as a result, the inner plug can be easily removed from the container body, and the separation process is facilitated. It can be done.
[0022]
In addition, in the case where a thin broken portion 21a that vertically cuts the fitting cylinder 18 at the other side end position of the finger-hanging piece 20 is provided, it is easier to cut the original fitting cylinder portion, and accordingly, the ring member Combines the advantage of easier opening of rings.
[0023]
Further, in the case where the engaging ridge 9 is discontinuous and the thin fracture portion 21 is formed at the position where the engaging ridge 9 is not formed, the engaging ridge portion standing on the inner surface is not broken. Therefore, it has the advantage that it can be easily opened.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a state in which an embodiment of the present invention is mounted on a container body.
FIG. 2 is a longitudinal sectional view of an inner plug body of the same embodiment.
FIG. 3 is a longitudinal sectional view of the ring member of the embodiment.
FIG. 4 is a plan view of the ring member of the same embodiment.
FIG. 5 is a bottom view of the ring member of the embodiment.
FIG. 6 is a rear view of the ring member of the embodiment.
FIG. 7 is a longitudinal sectional view for explaining the operation of the embodiment.
FIG. 8 is a longitudinal sectional view for explaining the operation of the embodiment.
FIG. 9 is a plan view of the ring-opened ring member of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Inner plug, 1A ... Inner plug main body, 2 ... Container body, 5 ... Mouth neck part, 6 ... Locking protrusion,
7 ... Ring member, 8 ... Peripheral wall, 9 ... Engaging protrusion, 18 ... Fitting cylinder, 19 ... Flange,
20 ... finger hanger, 21 ... thin fractured part,

Claims (3)

An inner plug fitted with a peripheral wall 8 fitted to the outer periphery of the mouth neck portion 5 of the container body 2, is prevented from coming out of the peripheral wall 8 of the inner plug main body 1 </ b> A and is fitted and fixed from below, and is fitted to the outer periphery of the peripheral wall 8. The engagement protrusion 9 is fitted to the lower end of the inner surface of the peripheral wall 8 through the flange 19 extending inwardly from the lower end edge of the fitted tube 18 and the finger hook protruding from the upper end edge of the outer surface of the fitting cylinder 18 The ring member 7 is provided with a thin-walled rupture portion 21 that vertically cuts one side end position of the piece 20 so that the ring can be opened, and the engagement protrusion 9 of the member is provided around the outer periphery of the container neck portion 5. An inner plug made of synthetic resin, which is prevented from coming out by getting over and engaging with the stop ridge 6. The inner plug according to claim 1, wherein a thin broken portion 21a is provided vertically on the fitting cylinder 18 at the other end of the finger-hanging piece 20. The inner plug according to claim 1, wherein the engaging ridge 9 is discontinuous, and the thin fracture portion 21 is formed at a position where the engaging ridge 9 is not formed.

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