JP2001206405A - Tamperproof device for cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tamperproof device for cap in which connecting pieces can be severed stably on unscrewing a cap and a tamperproof ring can be prevented from being removed together with the cap from a bottle on opening the bottle. SOLUTION: A tamperproof ring 6 has elastic holding pieces 7 to be joined to the bottle main body 1 for preventing falling-off formed through a plurality of connecting pieces 4 provided at equal intervals in the circumferential direction, and provided equal intervals in a manner of looking inward. The ring 6 is formed integrally at the lower end of a side wall 22 of a cap 2 having a screw part 3 to be screwed down onto a screw provided at the neck of a bottle main body 1 at the inner wall surface thereof. Opening of the cap 2 is discerned with the tamperproof ring 6 severed by breaking of the connecting pieces 4 caused by turning of the cap 2 on unscrewing the cap 2, and the connecting pieces 4 are arranged respectively at positions the same as and right above the elastic holding pieces 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a cap from being illicitly opened in a container having pill-proof characteristics.

[0002]

2. Description of the Related Art Conventional containers having pill-proof characteristics are disclosed in JP-A-58-160258.
JP-A-58-203849, JP-A-2-296
There is one described in JP-A-666.

[0003]

However, in the container having the pill-proof characteristic of the prior art, the positions of the elastic pieces (flaps) and the connecting pieces are not regularly arranged at the same position. They are arranged in a regular positional relationship. For this reason, when the cap is rotated when the cap is opened, that is, when the cap is unscrewed, the rotational force strongly acts on the connecting piece located immediately above the elastic piece and pulls it. On the other hand, the rotational force on the connecting pieces that are not directly above the elastic pieces is dispersed, the cap is tilted, and the rotational force is not uniformly applied to each connecting piece. As a result, there is a problem that the connection piece cannot be cut cleanly because the portion where the rotational force acts strongly and the portion where the rotational force acts are mixed and the rotational force is not uniform.
In addition, since the rotational force is not evenly applied to each connecting piece, a part of the connecting piece remains without being cut, and the unauthorized opening ring comes off with the cap and does not remain on the bottle main body side, so it is illegally opened. There is a problem that it is difficult to determine whether or not it has been performed. The present invention has been devised in view of the above problems, and the connecting piece can be reliably cut by rotation of the cap at the time of unscrewing, and it is possible to prevent the unauthorized opening prevention ring from coming off together with the cap at the time of opening. It is intended to provide a device for preventing unauthorized opening of a cap.

[0004]

As a means for solving the above-mentioned problems of the prior art, an apparatus for preventing unauthorized opening of a cap according to the first aspect of the present invention comprises a screw provided on a neck portion of a bottle body 1 on an inner wall surface. At the lower end of the side wall 22 of the cap 2 provided with the screw portion 3 to be screwed into the inner wall surface at the lower end of the inner wall surface via a plurality of connecting pieces 4 provided at substantially equal intervals in the circumferential direction, the escape is prevented. A tamper-evident ring 6 having locking elastic pieces 7 provided inwardly at equal intervals is integrally formed, and the tamper-proof ring 6 is separated from the cap 2 by rotation of the cap 2 when the cap 2 is unscrewed. In the cap tamper-evident preventing device for identifying that the cap 2 has been opened by cutting the connecting piece 4, the connecting piece 4 is arranged at the same position and immediately above each locking elastic piece 7. The invention according to claim 2 is characterized in that the connecting piece 4 according to claim 1 is arranged at a central position in the length direction of the locking elastic piece 7.

[0005]

[Function] By rotating the cap 2 in the unscrewing direction, the cap
When the cover 2 is removed from the tamper-evident ring 6, the connecting piece 4 is disposed immediately above the locking elastic piece 7, so that the rotational force of the cap is equally applied to each connecting piece 4, and the cutting force is applied to the connecting piece. 4
And the cap 2 is rotated in such a manner that the cap 2 can be evenly rotated, and the connecting piece 4 is cut cleanly and reliably.
Then, the tamper-evident ring 6 can be reliably left on the bottle body 1 side.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. An important point of the present invention is that when the cap 2 is unscrewed at the time of opening, the connecting piece 4 can be cut cleanly, and the tamper-evident prevention ring 6 can be reliably left in the bottle main body 1. Things. On the inner wall surface of the cap 2, a screw portion 3 is provided, which is screwed to a screw (not shown) provided on the neck of the bottle main body 1. The lower end of the side wall 22 of the cap 2 is provided at substantially equal intervals in the circumferential direction. A tamper-evident ring 6 is integrally formed at the lower end of the inner wall surface with a plurality of connecting pieces 4 and is attached to the bottle main body 1 and provided with locking elastic pieces 7 for preventing intrusion at equal intervals and inward. Also, the present invention relates to a device for preventing unauthorized opening of a cap for identifying that the cap 2 has been opened by cutting the connecting piece 4 from the cap 2 by rotating the cap 2 when the cap 2 is unscrewed. is there. Further, the connecting pieces 4 are arranged at the same positions of the locking elastic pieces 7, and the connecting pieces 4 are arranged immediately above the locking elastic pieces 7. In the present invention, it is important to dispose the connecting pieces 4 directly above and at the same position as the locking elastic pieces 7. The same number of the locking elastic pieces 7 and the connecting pieces 4 are provided in the circumferential direction, The arrangement is such that one of the pieces 7 and the connecting pieces 4 is provided in half. Also,
The connecting piece 4 is located at the center position in the longitudinal direction of the locking elastic piece 7 or substantially at the center thereof in order that the cap 2 rotates with a uniform rotational force so that all of the connecting pieces 4 can be cut reliably and neatly. It is located at the center position. Further, in the circumferential direction between the connecting pieces 4, the connecting piece 4 is opposed to the rotating force and the pressing force at the time of screwing, and the connecting piece 4 is not crushed and tilted. Cap 2 keeps regular intervals,
A support piece 5 of a predetermined length is provided so that the cap 2 can rotate with a uniform rotational force. At a predetermined position at the lower end of the side wall 22 of the cap, a meshing concave portion 21 is provided in the circumferential direction, and a meshing convex portion 61 is provided at the upper end of the tamper-evident prevention ring 6 correspondingly. At the time of screwing, meshing recess 2
The meshing projection 61 meshes with the cap 1 so that the cap 2 rotates reliably, and when the cap 2 is unscrewed, the cap can idle.

[0007]

The present invention having the construction described above has the following effects. (1) When the cap is unscrewed, the rotational force is uniformly applied to each connecting piece, so that each connecting piece can be cut reliably and neatly. Therefore, the tamper evident ring can be reliably separated from the cap, and the tamper evident ring can be assembled and left on the bottle body. (2) When the cap is unscrewed, the accident that the tamper-evident ring is removed from the bottle main body together with the cap can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view of a bottle of the present invention.

FIG. 2 is a longitudinal sectional view of the cap of the present invention.

FIG. 3 is a bottom view of a part of the cap of the present invention;
The cutout on the right side is a sectional view taken along line AA.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottle main body 2 Cap 21 Meshing recess 22 Side wall 3 Screw part 4 Connecting piece 5 Supporting piece 6 Tamper-evident prevention ring 61 Meshing convex part 7 Locking elastic piece

Continued on the front page (72) Inventor Keiji Iwatsuki 5-1-83 Higashihara, Zama City, Kanagawa Prefecture Morinaga Dairy Co., Ltd. (72) Inventor Noritaka Makino 5-1-83 Higashihara, Zama City, Kanagawa Prefecture Morinaga Milk Industry Inside the Food Research Institute, Inc. (72) Inventor Takashi Kimura 5-33-1, Shiba, Minato-ku, Tokyo In-house (72) Inventor Nobuo Yamanaka 3-2-6 Oshima, Koto-ku, Tokyo Yoshino Corporation Inside the factory (72) Inventor Keisuke Miyairi 3-2-6 Oshima, Koto-ku, Tokyo F-term in the Yoshino Kogyosho Co., Ltd. 3E084 AA04 AA12 BA01 CA01 DA01 DB04 DB05 DB12 FA09 FB01 GA04 GB04 GB08 KA13 LA05

Claims (2)

[Claims] 1. A plurality of connecting pieces provided at substantially equal intervals in the circumferential direction at a lower end of a side wall 22 of a cap 2 provided with a screw portion 3 screwed to a screw provided on a neck portion of a bottle body 1 on an inner wall surface. A tamper-evident ring 6 is integrally formed at the lower end of the inner wall surface with the bottle main body 1 at the lower end of the cap 2 and has locking elastic pieces 7 provided inward at equal intervals to prevent the cap 2 from slipping out. In the cap tamper-evident prevention device for identifying that the cap 2 has been opened by cutting the connecting piece 4 from the cap 2 by rotating the cap 2, the tamper-proof ring 6 is provided with each locking elastic piece. 7. A device for preventing unauthorized opening of a cap, wherein the device is arranged at the same position and directly above. 2. An apparatus for preventing unauthorized opening of a cap according to claim 1, wherein the connecting piece 4 is disposed at a central position in the longitudinal direction of the locking elastic piece 7.