JP2000281103A - Unrecappable cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a cap unrecappable after it is once opened in a distribution channel for commodity. SOLUTION: A circumferential wall 12 of a cap cylinder, whose upper end face is closed with a top plate 11, is fitted on an outer face of a neck part 3 in such a manner that the circumferential wall is not allowed to be pulled out of the neck part and to be rotated around it. Vertically paired first break lines 15, 15 extending in the circumferential direction of the circumferential wall and a second break line extending vertically and continuing to both the first break lines are formed on the circumferential wall, respectively. An elastic plate 21 is erected from an outer face of a portion of the circumferential wall 12 of the cap cylinder, which is adjacent to the second break line. Further, a ring-like plate 22 is protrusively provided from the top end of the elastic plate so as to extend above the top plate 11, and the underside of the ring-like plate is connected to the upper side of the top plate 11 of the cap cylinder with the aid of connecting pieces 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap to be attached to the mouth and neck of a container, and more particularly to a cap which cannot be closed again after it has been opened.

[0002]

2. Description of the Related Art In general, a cap for closing a mouth, neck and neck of a container body is mounted so that it cannot be easily opened in a commodity distribution channel.

[0003]

However, it is not impossible to open the cap even if it is difficult to open the cap in the distribution channel of the product, and the cap once opened must be closed again. It is not impossible, and for this reason, from the viewpoint of safety, a cap that cannot be closed again once opened in the distribution channel has been desired.

According to the first and second aspects of the present invention, when the lid is opened, the cap is inevitably broken so that recapping after opening the lid is disabled.

[0005]

As a first means, as a first means, a lid cylinder 10 having an upper end closed and attached to the outer surface of a container body neck portion 3 rising from the upper end of the body part 2, and a projection protruding from the peripheral wall of the lid cylinder. And a lid ring 20 for breaking the peripheral wall. The lid cylinder 10 has a peripheral wall 12 vertically extending from an outer periphery of a top plate 11 placed on the upper end surface of the container body neck and neck portion 3, and the peripheral wall is connected to the neck and neck. Unable to pull out to the outside,
A pair of upper and lower first break lines 15 and 15 in the circumferential direction and a second vertical break line 16 in the up and down direction that are continuous with the two break lines are formed on the peripheral wall. The opening ring 20 is provided with a second breaking line 1 in the vertical direction.
The elastic plate 21 is erected from the outer surface of a part of the peripheral wall 12 of the cover cylinder adjacent to the upper plate 6, and the ring-shaped plate 22 is attached to the top plate 1 from the upper end of the elastic plate.
1 and projecting upward, the lower surface of the ring-shaped plate was connected to the upper surface of the lid top plate 11 via a connecting piece 23.

[0006] As a second means, the above-mentioned first means is provided, and the upper outer surface of the container body neck portion 3 is formed to have a large outer diameter portion via a downward step portion 4. A plurality of first fitting ridges 5 are vertically provided on the outer surface of the lower mouth and neck,
The upper surface of the engaging ridge 13 provided on the inner surface in the vertical middle portion of the lid peripheral wall 12 is engaged with the lower surface of the downward step portion 4, and a plurality of inner rims of the lid peripheral wall 12 below the engaging ridge are provided on the inner surface. Second
The fitting ridge 14 was installed vertically, and the second fitting ridge was fitted to the first fitting ridge 5.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a non-recoverable cap according to the present invention. The non-recoverable cap according to the present invention includes a cover cylinder and a cover opening ring. First, the container body to which the cap is attached will be described. The container body 1 stands up the mouth and neck 3 from the upper end of the body 2, and the upper outer surface of the mouth and neck is tapered downward step 4 having a small diameter downward. And a plurality of first fitting ridges 5 formed on the outer surface of the mouth and neck below the downwardly facing step 4.
And an outward flange 6 is attached to the outer surface of the lower end of the mouth and neck 3.

[0010] Reference numeral 10 denotes a lid tube, and a peripheral wall 12 is vertically suspended from the outer periphery of the top plate 11 placed on the upper end surface of the container body neck and neck portion 3, and the peripheral wall is fitted to the outer surface of the mouth and neck portion above the outward flange 6. Let
In addition, the upper surface of the engaging ridge 13 provided on the inner surface of the intermediate portion in the vertical direction of the peripheral wall 12 is engaged with the lower surface of the downward step portion 4.
A plurality of second fitting ridges 14 are vertically provided on the inner surface of the portion of the peripheral wall 12 below the engaging ridges 13, and the second fitting ridges are fitted to the first fitting ridges 5.

A pair of upper and lower first breaking lines 15 and 15 in the circumferential direction above the engagement ridge 13 and a pair of upper and lower breaking lines 15 and 15 located at the rear of the circumferential wall 12 and continuing to the two breaking lines 15 and 15. A second break line 16 in each direction is formed. Of the pair of upper and lower breaking lines 15, 15, the upper breaking line is formed at the boundary with the top plate 11, and the lower breaking line is formed at the boundary with the engaging ridge 13.
In addition, a short tube 17 is vertically provided from the lower surface of the central portion of the top plate 11,
The short cylinder is fitted to the inner surface of the mouth and neck 3 of the container body, the center of the top plate 11 is raised cylindrically, and the front of the raised portion is recessed to form a finger-receiving recess 18 which is open front. .

Reference numeral 20 denotes a lid opening ring, which extends from the outer surface of a part of the peripheral wall 12 between the pair of upper and lower first break lines 15,
6, an elastic plate 21 stands upright, a ring-shaped plate 22 protrudes from the upper end of the elastic plate above the top plate 11, and a connecting piece 23 hangs down from the lower surface of the ring-shaped plate. To the upper surface of the outer peripheral portion of the top plate 11.

Next, the operation of the present embodiment will be described.
In order to open the lid, the user puts his / her finger on the lower surface of the front part of the ring-shaped plate 22 from the finger-receiving recess 18 of the top plate 11 and lifts the ring-shaped plate 22 to break the connecting piece 23 to break the ring-shaped plate 2.
2 is separated from the top plate 11, the ring-shaped plate 22 is pulled downward to break the second breaking line 16, and the ring-shaped plate 22 is drawn counterclockwise as shown in FIG. By breaking the lines 15, 15, the ring-shaped plate 22 is separated from the top plate 11 and the peripheral wall 12. Then, top plate 1
1 is detached from the mouth and neck 3 of the container so that liquid and the like can be poured out of the mouth and neck 3. In addition, since the cover cylinder peripheral wall 12 is fitted to the first fitting ridge 5 through the second fitting ridge 14, even if the ring-shaped plate 22 is pulled in the circumferential direction, the outer surface of the container body neck and neck portion is removed. It does not pivot up.

As described above, to open the lid, the cylindrical lid peripheral wall 12
It is impossible to close the mouth and neck of the container again with the tube lid once broken. Also,
Even after the peripheral wall is broken, the lower part of the peripheral wall remains in the mouth and neck of the container body, so that the fact that the lid is opened can be easily recognized. The top plate 11
Simply fits the short tube 17 to the mouth and neck 3, so it is difficult to completely close the lid only with the top plate 11, and it is not possible to hide the fact that the lid is open in appearance. Have difficulty.

[0013]

According to the first and second aspects of the present invention, the peripheral wall of the lid cylinder whose upper surface is closed is fitted to the mouth and neck of the container body so that it cannot be pulled out. Therefore, the peripheral wall must be broken to open the lid. ,
It is impossible to recap the lid once broken, and even if the peripheral wall is broken, the lower part of the peripheral wall remains in the mouth and neck of the container body, so it is extremely easy to visually recognize the fact that the lid is open in the distribution channel. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before opening a non-recoverable cap according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG. 1;

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

FIG. 4 is a plan view of FIG. 1;

FIG. 5 is a perspective view of the mouth and neck of the container.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 container body 2 trunk 3 mouth and neck 4 downward step 5 first fitting ridge 10 lid tube 11 top plate 12 peripheral wall 13 engaging ridge 14 second engaging ridge 15 first breaking line 16 second breaking line Reference Signs 20 opening ring 21 elastic plate 22 ring-shaped plate 23 connecting piece

Claims (2)

[Claims] 1. A container body mouth and neck part 3 rising from an upper end part of a body part 2.
It has a lid tube 10 with an upper end surface closed on the outer surface, and an opening ring 20 for breaking the peripheral wall protruding from the peripheral wall of the lid tube, and the lid tube 10 is moved to the upper end surface of the container body neck and neck 3. A peripheral wall 12 is vertically provided from the outer periphery of the placed top plate 11, and the peripheral wall is fitted to the outer surface of the mouth and neck so that it cannot be pulled out and cannot rotate.
A first pair of upper and lower circumferential breaking lines 15, 15 on the peripheral wall;
A second breaking line 16 in the vertical direction that is continuous with both breaking lines
The lid-opening ring 20 is formed by erecting an elastic plate 21 from the outer surface of a part of the lid cylinder peripheral wall 12 close to the second breaking line 16 in the up-down direction, and a ring-shaped plate from the upper end of the elastic plate. 22 to top plate 11
A non-recoverable cap characterized by being projecting upward and connecting the ring-shaped plate to the lid tube top plate 11 via a connecting piece 23. 2. An upper outer surface of the container body neck portion 3 is formed with a large outer diameter portion through a downward step portion 4, and a plurality of first fittings are formed on the outer surface of the mouth neck portion below the downward step portion. The ridge 5 is provided vertically, and the upper surface of the engaging ridge 13 provided around the inner surface in the vertical direction of the cover cylinder peripheral wall 12 is engaged with the lower surface of the downward step portion 4, and the lid is located below the engaging ridge. A plurality of second
The non-recoverable cap according to claim 1, wherein the fitting ridge (14) is provided vertically, and the second fitting ridge is fitted to the first fitting ridge (5).