JPH09240706A - Sealing cap made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a sealing cap which is applicable to a cap such as a crown cap to be fitted and mounted on a recess of a container neck and which can secure safety while maintaining sealing function. SOLUTION: A cap such as a crown cap 4 is fitted into and mounted on a circular recess 16 formed on a neck 14 of a container 2. A sealing cap comprises a tube 5 with a plurality of locking pieces 12 protruding inward at a lower end which lock to a lower end of a circular protrusion 11 formed at a lower end of the crown cap 4 or the like, a tab piece 9 for separating the tube which is separated from a circular top 6 connected to an inner of an upper end of the tube 5 and connected to the tube 5 via thin parts and a plurality of covering pieces 13... protruding with predetermined intervals in a peripheral direction to cover the circular protrusion 11 at the lower end of the cap such as the crown cap 4 from outward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution process, such as a bottle or the like, which is attached to a cap such as a crown that closes the mouth of a container and is delivered from a factory where the contents are filled into the container to the consumer. In the above, the present invention relates to a synthetic resin sealing cap used for preventing accidents such as the crown or the like being unintentionally opened, the contents being taken out, and foreign substances being mixed in.

[0002]

2. Description of the Related Art Conventionally, as a sealing device of this kind, a tubular portion having a lower end fitted into an annular full portion formed on a lower outer surface of a contents taking-out opening portion of a container, and an inside of an upper end of the tubular portion. And a ring portion that is connected to the tubular portion by a thin wall portion and is formed by forming a thin wall portion for cutting the tubular portion over at both upper and lower ends in at least one location of the tubular portion. It has been known. (See Japanese Utility Model Laid-Open No. 60-50150)

[0003]

However, in the case of the closure having the above structure, the lower end of the tubular portion is fitted into the annular groove formed on the outer surface of the lower portion of the container mouth portion. It can not be used for a crown that squeezes the diameter and closes the mouth of the container by inserting it into the groove, or a cap that is tightened and attached to the outer periphery of the mouth and neck of the container. There is a limitation that is limited.

The present invention has been made in view of the above problems of the conventional synthetic resin sealing device, and can be used as a sealing cap such as a crown cap for closing the mouth of a container.
Another object of the present invention is to provide a safe sealing cap made of synthetic resin, which is capable of preventing the fingertips from being injured by the tightening portion and the lower end surface thereof which are uneven due to the compression of the crown while maintaining the sealing function and which is safe.

[0005]

In order to achieve the above object, the synthetic resin sealing cap of the present invention is a sealing cap to be attached to a cap such as a crown cap that closes the mouth of a container. A plurality of locking pieces that are locked to the lower ends of the annular protrusions formed at the lower ends by fitting the lower part of the crown into the annular recesses formed on the outer surface of the lower portion of the container mouth. A cylindrical portion protruding toward the inside of the lower end and an annular top portion continuously connected to the inside of the upper end of the cylindrical portion, and for disconnecting the cylindrical portion continuously connected to the cylindrical portion with a thin portion The tubular portion is provided with a plurality of covering pieces which cover the lower end projecting portion of the crown or the like from the outside at a predetermined interval in the circumferential direction at the lower end thereof. It is characterized by

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 6, the sealing cap 1 of the present invention is integrally molded of synthetic resin. The cap 1 is, as shown in FIG.
A cylindrical portion 5 is attached to a crown 4 that closes the mouth portion 3 of a container 2 such as a bottle, and a substantially annular top portion 6 that is continuously provided inside the upper end of the cylindrical portion 5.

As shown in FIG. 2 (A), FIG. 3 and FIG. 5, one side of the tubular portion 5 is cut away from the top portion 6 and is notched portions 7, 7.
Are separated from each other by a thin wall portion 8,
A tongue-shaped piece 9 for disconnecting the tubular portion is formed so as to be connected by 8. The tongue-shaped piece 9 has a tip portion 9a extending horizontally from the upper end of the tubular portion 5 to the inside, and is formed into a substantially inverted L-shaped side surface.

The tubular portion 5 has a plurality of (four in the illustrated example) vertical ribs 10 ... Protrudingly provided on the upper portion of the inner surface thereof at regular intervals in the circumferential direction. As shown in FIG. 3, a plurality of (which are formed so as to be in close contact with the upper outer peripheral surface of the peripheral wall of the crown 4 and are locked from below to the protrusion 11 formed at the lower end of the crown 4 at the lower end of the inner surface ( In the illustrated example, four locking pieces 12 ... Are formed by inclining and rising inward.

Further, as shown in FIG. 1, the cylindrical portion 5 has a plurality of (8 in the illustrated example) covering pieces 13 covering the lower end of the protruding portion 11 of the crown 4 from the lower outside as shown in FIG. ...
Are projected in the circumferential direction at a constant interval a. Each of the covering pieces 13 ... Is bent inward so as to cover the above-mentioned protruding portion 11 and its lower end surface 11a.

As shown in FIG. 2 (B), the sealing cap 1 described above is pressed downward from above against the crown 4 with the mouth 3 of the container 2 closed, as shown in FIG. It is formed of synthetic resin having appropriate flexibility and elasticity so that it can be attached to the crown 4.

On the other hand, the crown 4 is, as is known, a container 2
The lower part of the peripheral wall 15 is squeezed inward to reduce the diameter by press-fitting into the mouth / neck part 14 in which the mouth part 3 is formed, and an annular recess formed on the outer surface of the mouth / neck part 14. It is fitted in 16 and is fastened with the mouth 3 closed. As a result, at the lower end of the peripheral wall 15, a plurality of vertically long protrusions 1
The annular protrusion 1 is formed by 1b ...
1 is formed.

FIG. 1 shows a state in which the sealing cap 1 according to the present invention is used for the crown 4, and the respective locking pieces 12 ,.
.. are locked to the lower end of the protrusion 11 of the crown 4, and each cover piece 1
The protrusion 11 is covered from the outside by 3.

As shown in FIG.
As shown in (B), the crown 4 with the mouth 3 of the container 2 closed
On the other hand, when the sealing cap 1 is pushed in by pressing, the locking pieces 12 ... Abut on the outer surface of the projecting portion 11 of the crown 4. When the locking pieces 12 are further pushed, the locking pieces 12 are elastically deformed outward due to the pushing force, and the locking pieces 12 ride on the projecting portion 11 and climb over the projecting portion 11, and at the same time, the locking pieces 12 ... It can be elastically returned to the position of, and can be locked at the lower end of the projecting portion 11 to be in a sealed state in which the crown 4 is covered.

In the above-mentioned sealed state, as shown by the chain double-dashed line in FIG. 1, by holding the tip 9a of the tongue 9 and pulling it up and pulling it outward, the thin portion 8 shown in FIG.
When 8 is broken and the tubular portion 5 is divided, the sealing function is lost, and the sealing cap 1 can be removed from the crown 4, whereby the crown 4 can be opened.

In the above-mentioned embodiment, the case in which the crown 4 is sealed is explained, but a cap may be attached to the container 2 by fastening the peripheral wall to the outer surface of the mouth and neck of a bottle or the like,
In this case, the lower end of the peripheral wall of the cap is formed in a structure in which the locking pieces 12 ...

[0016]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it can be applied to a crown or the like that is fastened to the mouth and neck of a container to close the mouth, and a reliable sealing function can be maintained.
The lower end of the crown, etc. is covered with a covering piece and is not exposed, so it is safe because the protrusions and depressions on the lower end of the crown and its lower end do not injure your fingertips etc. In addition, the appearance can be improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a use state showing an embodiment of a synthetic resin sealing cap according to the present invention.

2A and 2B show the same embodiment, FIG. 2A is a perspective view of a sealing cap, and FIG. 2B is a perspective view of a state in which a container mouth is closed by a crown.

FIG. 3 is a plan view showing the same embodiment.

4 is a sectional view taken along the line AA in FIG.

FIG. 5 is a bottom view showing the embodiment.

FIG. 6 is a sectional view taken along line BB in FIG. 3;

[Explanation of symbols]

 1 Sealing cap 2 Container 3 Mouth part 4 Cap of crown etc. 5 Cylindrical part 6 Top part 8 Thin part 9 Tongue-shaped piece 11 Projection part 12 Locking piece 13 Cover piece

Claims (1)

[Claims] 1. A sealing cap made of synthetic resin, which is attached to a cap such as a crown that closes the mouth of a container, wherein the cap is provided in an annular recess formed on the lower outer surface of the mouth of the container. A tubular portion in which a plurality of locking pieces that are locked to the lower end of an annular projecting portion formed at the lower end when the lower portion is fastened and fitted are provided so as to project toward the inside of the lower end, and the upper end of the tubular portion. It is separated from the annular top portion continuously provided on the inner side, and is composed of a tongue-like piece for disconnecting a tubular portion continuously provided to the tubular portion with a thin portion, and the tubular portion is provided at the lower end thereof with A synthetic resin sealing cap, characterized in that a plurality of covering pieces that cover the protruding portion at the lower end of the cap from the outside are provided at predetermined intervals in the circumferential direction.