JP5942538B2 - cap - Google Patents

Description

  The present invention relates to a cap. More specifically, the present invention relates to a cap comprising a cap main body that is screwed into a container mouth portion to be crowned, and an opening history clarifying band that is connected to the lower end of the skirt portion of the cap main body.

  Nowadays, caps having an opening history indicating band (also called a tamper-evidence band) that clearly shows an opening history are widely used for quality assurance of container contents and prevention of mischief. When this type of cap is opened, the connection between the cap body and the opening history indicating band is cut off, thereby clearly indicating the fact that the cap has been opened.

  Such a cap includes, for example, a cap body that is fixed to the container mouth by screw engagement, and an opening history manifest band that is connected to the lower end of the skirt portion of the cap body via a breakable bridge (weakening portion). When the cap body is turned in the opening direction, the bridge connecting the opening history explicit band and the cap body is broken, the opening history explicit band is cut off, and only the cap body is removed from the container mouth. It is. That is, the fact that the cap has been opened can be recognized by the fact that the opening history explicit band has been cut off.

  However, the above-mentioned conventional caps with an opening history explicit band, after opening any cap, the opening history explicit band is completely separated from the cap body and remains on the container side. It was difficult to see that was separated from the cap body, and there was a risk of being mistaken for not being opened.

  Therefore, a rectangular opening-recognizing tongue-like piece is suspended at one position on the lower end of the peripheral wall of the cap body, and the left-hand side of the opening-recognizing tongue-like piece is connected to the right-side lower end of the opening-recognizing tongue-like piece via a reinforced weak bridge. Connect the opening history explicit band (tamper-resistant sealing ring) to the nearby position with a gap to the cap body, and connect the cap body via weak bridges weaker than the reinforced weak bridge at multiple locations on the upper surface of the opening history explicit band There has been proposed a cap in which the opening history clarification band remains partially connected to the cap body when it is connected to the lower end of the skirt portion and opened (Patent Document 1).

  In addition, other similar caps have been reported in which, when opened, the unsealing history indication band remains partially connected to the cap body (Patent Document 2).

  In the case of such a cap, the fragile bridge is cut when opened, and the reinforced weak bridge remains with the opening history explicit band on the cap body, so it is easy to understand that the opening history explicit band has spread and opened. At the time of sealing, the opening history clarification band is connected to the cap body, so it is very difficult to reseal, such as obstructing when turning in the opening direction, and in order to remove the opening history clarification band, a reinforced weak bridge The number of trash will increase at the same time as it has to be cut.

  Known documents are shown below.

JP 2006-131232 A JP-A-2005-324806

  The present invention has been made in view of the above circumstances, and when opened, an opening history explicit band remains in the container mouth, but it can be easily confirmed that the opening history explicit band has been swollen out and opened. When opening, since the opening history explicit band remains on the container side, the cap body can be attached to the container mouth as it is, and when removing the opening history explicit band, a cap that can be easily removed is provided. The challenge is to do.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and the invention of claim 1 is connected to a cap body fixed to a container mouth portion by screw engagement and a lower end of a skirt portion of the cap body via a plurality of bridges. In the cap consisting of the opened opening history explicit band,
The opening history indicating band is provided with a slit from the upper end to the lower end, the upper end of the opening history indicating band is provided with the bridge on each of the left and right sides in the vicinity of the slit, and the cap body is The lower end of the unsealing history manifesting band is arranged so that the bridge is cut and the unsealing history manifesting band is detached from the cap body when the lock ring provided at the mouth of the container is swelled outward when it is opened. On the inside of the part, a flap is connected in a form protruding inward through a thin base part, provided at regular intervals in the circumferential direction ,
The width of the portion protruding inward of the flap is smaller than the flap in the vicinity of the slit.
The cap is characterized in that the flap provided near the position facing the slit is formed to be larger .

  The cap of the present invention is configured as described above, and the opening history indicating band is provided with slits from the upper end to the lower end, and the upper ends of the opening history indicating band near the slit are provided with bridges, respectively. When opening the cap body by turning the cap body, the opening is clearly shown so that the bridge is cut and the opening history clarification band is detached from the cap body at the lock ring provided at the container mouth and swelled outward. A flap is connected to the inside of the lower end of the band in a shape that protrudes inward through a thin base, and is provided at regular intervals in the circumferential direction. The opening history clarification band does not move up when the flap hits the lock ring, so the bridge is cut and the opening history Band remains. And it can confirm easily that the opening history clarification band swelled outside by the provided slit, and was opened.

  When re-sealing, since the opening history clarification band remains on the container side, the cap body can be attached to the container mouth as it is, and when removing the opening history clarification band, it is easily cut off by the slit. Can be removed.

  In the present invention, the width of the portion protruding inward of the flap is formed so that the flap provided near the position facing the slit is larger than the flap near the slit. When opening, the flap at the position facing the slit is cut from the bridge at that position, and finally the bridge near the slit is cut, so that the slit opens and the opening history explicit band comes off from the container mouth. Without leaving it on the container side.

  When the cap of the present invention is opened, the bridge is cut and an opening history indicating band remains in the container mouth, but a slit is provided so that the flap pushes the opening history indicating band away from the container mouth. Therefore, it can be easily confirmed that the opening history indicating band has been swollen out and opened.

  When re-sealing, since the opening history clarification band remains on the container side, the cap body can be attached to the container mouth as it is, and when removing the opening history clarification band, it is easily cut off by the slit. Can be removed.

In addition, the width of the inwardly protruding portion of the flap connected so as to protrude inward from the opening history explicit band is larger than that of the flap in the vicinity of the slit. If it is formed to be larger, when opening, the slit at the position facing the slit is cut from the bridge at that position, and finally the bridge near the slit is cut, so the slit opens. Thus, the opening history indicating band can be left on the container side without being detached from the container mouth.

It is a front view of an example of the cap of the present invention. It is AA sectional drawing of FIG. It is the fragmentary sectional view which showed an example of the cap of this invention with the container opening part. (A) It is explanatory drawing showing the state of an opening log | history explicit band when an example of the cap of this invention is opened. (B) It is explanatory drawing showing the state of an opening history explicit band when an example of the cap of this invention is opened.

Hereinafter, modes for carrying out the present invention will be described.
1 is a front view of an example of the cap of the present invention, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, and FIG. 3 is a partial cross-sectional view showing an example of the cap of the present invention together with a container mouth portion.

  As shown in FIG. 1, the cap 100 of the present invention is formed of a cap body 1 and a cylindrical opening history clarification band 2. The cap body 1 includes a top plate portion 3 and a skirt portion 4 depending from the peripheral edge portion of the top plate portion 3.

  A knurl 5 for preventing slipping is formed on the outer peripheral surface of the skirt portion 4 so that the cap body 1 can be smoothly turned in the closing direction and the opening direction by turning by hand. .

  As shown in the partial sectional view of FIG. 3, an inner ring 6 is formed on the inner surface of the top plate portion 3 so as to extend downward with a gap from the skirt portion 4. Is to increase.

  Further, a thread 7 is formed on the inner surface of the skirt portion 4, and this thread 7 engages with a thread 9 formed on the outer surface of the container mouth portion 8. That is, the cap body 1 is mounted on the container mouth 8 by the thread engagement of the thread 7 on the inner surface of the skirt 4 and the thread 9 on the outer surface of the container mouth 8.

As shown in FIG. 1 and FIG. 2 of the AA sectional view thereof, the upper end of the cylindrical opening history indicating band 2 is connected to the lower end of the skirt portion 4 of the cap body 1 through a plurality of bridges 10. ing. Further, the opening history indication band 2 is provided with one slit 11 from the upper end to the lower end, and the opening history indication band 2 in the vicinity of the left and right of the slit 11 has an upper end,
A bridge 10a is provided.

  The bridges 10b, 10c, 10d, and 10e other than the bridge 10a are evenly provided on the circumference so as to connect the upper end of the opening history indicating band 2 and the lower end of the skirt portion 4 of the cap body 1 with a good balance. .

  Thus, since the opening history clarification band 2 is connected to the cap body 1 through the plurality of bridges 10 and the opening history clarification band 2 is provided with the slits 11, the bridge 10 is opened when opened and opened. It is cut and the opening history clarification band 2 is left in the container mouth 8.

  And since the slit 11 is provided, when opening, the width | variety of the slit 11 spreads and the opening history clarification band 2 swells outside, and it can confirm that it is opening easily. Furthermore, since the opening history clarification band 2 is not connected to the cap body 2, the cap body 1 can be easily attached to the container mouth portion 8 when resealed.

  Moreover, since the width | variety of the slit 11 spreads, it can confirm that the opening history clarification band 2 swelled outside, and was easily opened. Moreover, since it is cut | disconnected by the slit 11 also when removing the opening history clarification band 2 from the container opening part 8, it can remove easily.

  On the inner surface of the unsealing history manifesting band 2, a flap 12 protruding inward and having a thin base portion connected to the unsealing history manifesting band is provided intermittently in the circumferential direction. And when the cap 100 is not fitted in the container opening | mouth part 8, the front-end | tip of the flap 12 has faced diagonally downward like FIG.

  When the cap 100 is fitted into the container mouth portion 8, it hits the outer peripheral surface of the container mouth portion 8, and the tip of the flap 12 faces obliquely upward as shown in FIG. The container mouth portion 8 is provided with an outwardly raised lock ring 13, and the flap 12 is positioned below the lock ring 13.

  When the cap body 1 is turned and opened, the bridge 10 is cut when the flap 12 comes into contact with the lock ring 13, and the opening history indicating band 2 is detached from the cap body 1.

  The width of the flap 12 protruding inward is not the same. As shown in FIG. 2, the flap 12a provided in the vicinity of the slit 11 has the smallest protruding width, and the flap 12b faces the position facing the slit 11. The width protruding inward in the order of 12c, 12d, 12e, and 12f increases.

  Referring to FIG. 2, for example, the width protruding inward of the flap 12b is 0.1 mm larger than its width of the flap 12a, and the width protruding inward of the flap 12c is 0.1 mm larger than its width of the flap 12b. Gradually, the width gradually increases by 0.1 mm, and the width protruding inward of the flap 12f is the largest.

  In this way, when opening (opening), first, the flap 12f is strongly pressed by the lock ring 13, and the bridge 10e between the two flaps 12f farthest from the slit 11 in FIG. Disconnected.

Further, the bridge 10d, the bridge 10c, and the bridge 10b are cut in this order, and only the bridge 10a is not cut as shown in FIG. 4A. Finally, the bridge 10a is cut, and FIG. As in B), all the bridges 10 are cut, and the cap body 1 and the opening history clarification band 2 are separated.

  As described above, the bridge 10 other than the bridge 10a is cut first, and the bridge 10a is cut last, so that the opening history indicating band 2 is detached from the container mouth portion 8 by opening the slit 11 during the opening. There is nothing. Then, the cap body 1 can be removed from the container mouth and opened while the opening history indicating band 2 is attached to the bottom of the lock ring 13 of the container mouth 8.

  As described above, when the cap of the present invention is opened, an opening history clarification band remains at the container mouth, but it can be easily confirmed that the opening history clarification band has been swollen out and opened. Since the opening history clarification band remains on the container side, the cap body can be directly attached to the container mouth and resealed, and when removing the opening history clarification band, it is easily removed by the slit. Can do.

  The cap of the present invention can be suitably used for caps of beverage PET bottles and caps of large PET bottles having a large body diameter (for example, 38 mm diameter). In addition, caps for other containers such as plastic bottles and liquid paper containers other than pets need to be prevented from being tampered with, so that the opening history clarification band does not remain connected to the cap body and remains in the container mouth. Can be used.

DESCRIPTION OF SYMBOLS 100 ... Cap 1 ... Cap body 2 ... Opening history clarification band 3 ... Top plate part 4 ... Skirt part 5 ... Knurl 6 ... Inner ring 7 ... Screw 8 ··· Container opening 9 ··· Screw 10 (10a, 10b, 10c, 10d, 10e) ··· Bridge 11 ··· Slit 12 (12a, 12b, 12c, 12d, 12e, 12f) ··· Flap 13 ... Lock ring

Claims (1)

In a cap consisting of a cap body fixed to the container mouth by screw engagement, and an opening history clarification band connected to the lower end of the skirt portion of the cap body via a plurality of bridges,
The opening history indicating band is provided with a slit from the upper end to the lower end, the upper end of the opening history indicating band is provided with the bridge on each of the left and right sides in the vicinity of the slit, and the cap body is The lower end of the unsealing history manifesting band is arranged so that the bridge is cut and the unsealing history manifesting band is detached from the cap body when the lock ring provided at the mouth of the container is swelled outward when it is opened. On the inside of the part, a flap is connected in a form protruding inward through a thin base part, provided at regular intervals in the circumferential direction ,
The width of the portion protruding inward of the flap is formed such that the flap provided in the vicinity of the position facing the slit is larger than the flap in the vicinity of the slit. To cap.

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