JP2002068258A - Inner plug fixing structure for prevention of fraudulence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner plug fixing structure for prevention of fraudulence in which the inner plug is prevented from being easily removed by shielding an outer circumferential portion becoming a hook to be engaged with the inner plug. SOLUTION: A spout 11 is formed of a middle step 11a at its distal end rather than a forming part of a threaded portion 14, an outer diameter at a distal end rather than the middle step 11a is narrowed to form a large step 11b. The inner plug 12 is provided with a fitting segment 16 of double-walled structure comprised of an inner annular piece 16a and an outer annular piece 16b protruded in a concentric manner at a rear surface circumferential edge of a closing plate 15. The inner plug 12 is fitted under a state in which the large step 11b is held by both annular pieces 16a, 16b. A shielding wall 23 brought into substantially close contacted with and enclosing an outer circumference of the outer annular piece 16b becoming a hook to be engaged with a finger is fitted to an outer part of the middle step 11a. An annular protrusion 24 and an annular notch 25 engaged to each other are formed between an inner circumference of a base end of the shielding wall 23 and an outer circumference of the middle step 11a to enable the shielding wall 23 to be removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fraudulent method for preventing a foreign substance from being mixed into a container by preventing the inner plug fitted into the spout of the container from being easily removed with a finger or the like. The present invention relates to a prevention inner plug mounting structure.

[0002]

2. Description of the Related Art In general, a water container such as a lotion has a double-lid structure in which a spout is provided with a liquid-tight inner plug at a spout port and the outside thereof is further covered with a cap. Can be arranged on a display shelf or the like with the container naked or simply stored in a box.
Then, the customer can freely pick up the goods thus arranged on the display shelf, or can easily take out the boxed product from the box and view it.

[0003]

However, when an unspecified number of people can easily touch the product as described above, there is a risk that foreign matter may be illegally mixed for mischief purposes. In this case, even if the cap can be easily removed from the water container, if the inner plug is prevented from being removed, entry of foreign matter can be prevented. However, as a general conventional inner plug structure, there is a type fitted with a shape to cover a spout portion of a container, or a flange portion locked at the tip of the spout portion to simply press-fit the inner periphery of the spout portion. Are known.

However, the inner plug that covers the spout has its outer peripheral portion exposed, and the inner plug whose flange is locked at the tip of the spout has the flange projecting to the tip of the spout. The outer peripheral portion is exposed. In this way, each exposed outer peripheral part is a clue to catch the fingertip,
When the fingertip is hooked on the clue and pushed up strongly, the inner plug is removed.

Accordingly, the present invention has been made in view of such a conventional problem, and has been made to prevent the inner plug from being easily removed by concealing an outer peripheral portion serving as a clue for hooking the inner plug. An object of the present invention is to provide an inside stopper mounting structure for preventing fraud.

[0006]

In order to achieve the above object, a tampering prevention inner plug mounting structure of the present invention is fitted to an inner plug so as to sandwich a spout of a container from the inner and outer peripheral sides thereof. While a fitting portion having a double wall structure is provided, a concealing wall surrounding the outer periphery of the inner plug fitted to the spout portion is provided at the spout portion.

[0007]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1 to 3 show an embodiment of the inside stopper mounting structure for preventing fraud according to the present invention. FIG. 1 is a perspective view showing a main part of a spout portion of a container with a cap removed, and FIG. 1 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a cross-sectional view in a state where the inner plug and the spout are separated.

In this embodiment, basically, a fitting portion 16 having a double wall structure for fitting the spout 11 of the container 10 to the inner stopper 12 from the inner and outer peripheral sides thereof is provided. ,
The spout 11 is provided with a concealing wall 23 surrounding the outer periphery of the inner plug 12 fitted thereto.

FIGS. 1 and 2 show a state in which an inner plug 12 is fitted to a spout 11 of a container 10. A cap which covers the inner plug 12 and is attached to the spout 11 is not shown for convenience. is there. The spout 11 is formed in a cylindrical shape whose diameter is reduced so as to form a shoulder 13 from the container 10, and a screw portion 14 for screwing a cap (not shown) around the base end side (container 10 side). Are formed. The material and the softness / hardness of the container 10 are not particularly limited. For example, a material obtained by blow molding a thermoplastic resin or a material formed by using a glass as a material by a mold blowing method or the like is used. Also,
The spout portion 11 is formed with a middle section 11a whose outer diameter is narrowed over a predetermined section on the tip side from the portion where the screw section 14 is formed, and further has an outer diameter on the tip side from the middle step 11a. The squeezed large step portion 11b is formed.
The above inner plug 12 is fitted to b.

The inner plug 12 is integrally formed of a synthetic resin as a whole. The inner plug 12 has a closing plate 15 for closing the spout 11, and the container 1 of the closing plate 15
A fitting portion 16 having a double wall structure is provided on the peripheral edge of the back surface facing the inside. The fitting portion 16 is composed of an inner annular piece 16a and an outer annular piece 16b which are protruded concentrically, and the interval between these annular pieces 16a, 16b is formed substantially equal to the thickness of the large step portion 11b. You. And the inner annular piece 16a
Is on the inner periphery of the large step portion 11b, and the outer annular piece 16b is on the large step portion 1b.
1b is fitted to the outer circumference of each annular piece 16a, 1b.
The inner plug 12 is fitted in a state where the large step portion 11b is sandwiched by 6b. At this time, the outer diameter of the outer annular piece 16b is formed to be substantially the same as the outer diameter of the middle section 11a.

An annular first engagement projection 18 is formed on the inner periphery of the distal end of the outer annular piece 16b, and the outer periphery of the large step portion 11b corresponds to the first engagement projection 18. An annular second engaging projection 19 is formed at the position
The first engagement projection 18 and the second engagement projection 1
9 are undercut-fitted. With this undercut fitting, resistance in the removal direction is applied to the inner plug 12, and the inner plug 12 is more securely fixed.

At the center of the outer surface 15a of the closing plate 15, there is formed a thick portion 20 in the shape of a truncated cone that slightly protrudes, and a small-diameter outlet hole 2 communicating the inside and outside of the container 10 at the center.
1 is formed. Then, as shown in the figure, by tilting the container 10 in the upside down direction with the cap removed, the contents of the container 10, for example, a liquid such as lotion, can be taken out from the take-out hole 21. A seal 22 for closing the take-out hole 21 is affixed to the top surface of the thick part 20 so as not to be reproducible.

In this embodiment, the middle section 11a
Further, a concealing wall 23 which surrounds the outer circumference of the outer annular piece 16b substantially closely is fitted. The concealing wall 23 is formed in a cylindrical shape having a thickness t substantially equal to the step difference d of the middle portion 11a, and its distal end portion 23b has an outer annular shape with its base end portion 23a fitted to the middle portion 11a. It is formed to have a height h that surrounds the outer periphery of the piece 16b and reaches the outer surface 15a of the closing plate 15, and the outer peripheral surface of the inner plug 12 is covered by the concealing wall 23. Particularly, in the present embodiment, the concealing wall 2
3 and the outer surface 15a of the closing plate 15 are at the same height.

An annular convex portion 24 is formed on the inner periphery of the base end of the concealing wall 23, and an annular concave portion 25 is formed on the outer periphery of the middle portion 11a at a position corresponding to the annular convex portion 24. The engagement of the annular projection 24 and the annular recess 25 makes it impossible to remove the concealing wall 23.

In this embodiment, when attaching the inner plug 12 to the spout 11, the concealing wall 23 is first pressed into the middle portion 11a of the spout 11, as shown in FIG.
The annular convex portion 24 and the annular concave portion 25 are fitted in a state of being engaged with each other, and then the fitting portion 16 of the inner plug 12 is
b and press-fit. In the fitted state of the fitting portion 16, the inner annular piece 16a and the outer annular piece 16b are
And the first engagement projection 18 and the second engagement projection 19 are undercut-fitted.

The operation of this embodiment will be described with the above structure. The container 10 is sealed by fitting an inner stopper 12 into the spout 11 and further covering the inner stopper 12 with a cap (not shown). It is distributed as a product in a state of being screwed to the cover 14. Therefore, an unspecified number of persons can freely contact the container 10 in the distribution process of this sales. However, in the fraud prevention structure of the present embodiment, the inner wall 12 has a double-walled fitting portion 16.
And the concealing wall 23 surrounding the outer periphery of the inner plug 12 prevents the inner plug 12 from being easily removed with fingers even when the cap is removed from the spout 11.

That is, when the inner plug 12 is fitted to the spout 11, the inner annular piece 16a and the outer annular piece 16b having the double wall structure are connected to the first engagement projection 18 and the second engagement piece 18. The large step portion 11 b is sandwiched with the undercut fitting with the mating convex portion 19, and the outer periphery of the inner plug 12 is covered with the concealing wall 23 almost closely. Therefore, the inner plug 1
Since the outer peripheral portion serving as a clue for hooking the fingertip when removing 2 is concealed, it becomes impossible to remove inner plug 12 with fingers.

In this embodiment, the concealing wall 23 itself cannot be removed due to the engagement between the annular convex portion 24 and the annular concave portion 25, and the outer annular piece 16b is spread outward by the concealing wall 23. Is prevented by the inner annular wall 16a and the outer annular piece 16b.
Is maintained, so that the fitting force of the inner plug 12 can be increased. In particular, in the present embodiment, the undercut fitting between the first engaging convex portion 18 and the second engaging convex portion 19 is performed. Is firmly maintained, and the removal of the inner plug 12 is more reliably prevented from this point as well. Accordingly, it is possible to prevent foreign matter from being mixed into the container 10 from the inside stopper 12 during the distribution process of the product for the purpose of mischief, thereby ensuring the safety of the product.

FIG. 4 shows another embodiment, in which the same components as those in the above-mentioned embodiment are denoted by the same reference numerals and are not described repeatedly, and FIG. It is sectional drawing corresponding to FIG. That is, this embodiment is mainly different from the above-described embodiment in that the screw portion 14 of the cap (not shown) is formed on the concealing wall 30.

That is, in this embodiment, as in the above embodiment, the spout 11 is formed as a cylindrical shape whose diameter is reduced so as to form the shoulder 13 from the container 10.
Is formed so as to be substantially equal over the entire length of the protruding portion, and the front end portion 11c serves as a fitting portion of the inner plug 12,
The inner annular piece 16a and the outer annular piece 16b of the inner plug 12 are fitted so as to sandwich the tip 11c,
On the outer periphery of the distal end portion 11c, a second engagement projection 19 which is undercut fitted to the first engagement projection 18 of the outer annular piece 16b.
Are formed.

The concealing wall 30 is fitted over the entire length of the spout 11 and an enlarged diameter portion 32 having substantially the same diameter as the outer diameter of the outer annular piece 16b is formed on the inner periphery of the tip portion 31a. The inner plug 12 is fitted into the enlarged diameter portion 32 almost in close contact, and a screw portion 14 for screwing a cap is formed on the outer periphery of the concealing wall 30 on the base end portion 31b side. Further, an annular convex portion 24 and an annular concave portion 25 are formed between the inner periphery of the intermediate portion of the concealing wall 30 and the outer periphery of the spout 11, and the concealing wall 30 is formed.
Cannot be removed, and the concealment wall 30 cannot be removed.
A concave / convex portion 33 for preventing the concealing wall 30 from rotating when the cap is attached or detached is formed between the inner periphery of the base end portion 31b and the outer periphery of the corresponding spout portion 11.

Therefore, in this embodiment, the concealing wall 3
The inner plug 12 is fitted into the enlarged diameter portion 32 of
Since the concealing wall 30 can cover the outer periphery of the inner plug 12 as in the above-described embodiment, the outer peripheral portion serving as a clue for hooking a fingertip when removing the inner plug 12 is concealed and the inner plug 12 is removed with a finger. This makes it impossible to perform the same function as in the above-described embodiment, thereby preventing foreign matter from entering the container 10 and ensuring the safety as a product.

[0023]

As described above, in the inner plug mounting structure for preventing fraud according to the present invention, a fitting portion having a double wall structure is provided so as to sandwich the spout from the inner and outer peripheral sides thereof. Since the outer periphery of the inner plug fitted to the inner wall is surrounded by the concealing wall provided at the spout, the outer peripheral portion serving as a clue to catching a fingertip when removing the inner plug is concealed. It becomes impossible to remove the stopper with fingers. Further, since the fitting portion of the double wall structure is prevented from being spread by the concealing wall, the fitted state of the inner plug is maintained, the fitting force is increased, and the inner plug is more reliably prevented from being removed. be able to. Therefore, it is possible to prevent foreign matter from being mixed into the container from the inner plug portion in the distribution process of the product, and thus it is possible to ensure the safety of the product.

[Brief description of the drawings]

FIG. 1 is a perspective view of an essential part of a container with a cap removed, showing a spout port partly broken away, showing an embodiment of a tampering prevention inner plug mounting structure according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG. 1 showing one embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an embodiment of the present invention in a state where an inner plug and a spout are separated.

FIG. 4 is a sectional view corresponding to FIG. 2, showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container 11 Spout part 12 Inner plug 16 Fitting part 16a Inner annular piece 16b Outer annular piece 23 Concealment wall 30 Concealment wall

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA04 AA32 AB01 AB09 BA03 BA05 CA01 CB01 CB02 CB04 CC03 DA01 DB14 DB17 DC03 EA04 EB01 EB02 EB04 EC03 FA09 GB08 GB12 GB17 KA14 KA15 LA02 LA06 LA17 LB02 LB07 LC01 LD01 LD01

Claims (1)

[Claims] 1. A fitting portion having a double wall structure for fitting a spout portion of a container to an inner stopper so as to sandwich the spout portion from an inner peripheral side and an outer peripheral side thereof, and fitting the spout portion to the spout portion. A concealing wall surrounding the outer periphery of the inner plug is provided.