JP5646389B2 - Tamper-evident cap - Google Patents

Description

  The present invention relates to a tamper-evident cap made of synthetic resin, and more particularly to a tamper-evident cap that can be easily attached to a container having a hinge cap and can be easily opened.

  The tamper-evident cap (1) of the hinge cap is composed of a pair of divided bodies (2a, 2b) that are rotatably connected by the hinge portion (3), and the divided body (2) is a cap (21) ) And a ring-shaped split ring (7) which is easily connected to the lower end of the split cap body (4) and is engaged with the lower end of the cap (21) of the container (20). In the prior art, it is known that the cap (21) of the basket container (20) cannot be removed unless the split cap body (4) is removed (see, for example, Patent Document 1).

JP-A-8-2544

  In the assembling of the tamper-evident cap (1) of Patent Document 1, after attaching one divided body (2) to the outside of the cap (21) of the container (20), the other divided body (2). Since it is only necessary to close and fix the container, it is not necessary to be plugged or pushed in as in the prior art, and the cap (21) of the container (20) can be prevented from being damaged.

  However, the tamper-evident cap (1) described in Patent Document 1 is related to the split cap body (4) that covers the cap (21) of the container (20) and the lower end of the cap (21) of the container (20). In order to break the connecting piece (6) when the container (20) is opened because the ring-shaped split ring (7) to be stopped is connected via a plurality of thin connecting pieces (6). A force for twisting the split cap body (4) and the split ring (7) was required, and there was a problem that the usability was not good.

  In view of the above problems, the present invention provides a tamper-evident prevention cap that has a tamper-evident prevention function, is easy to attach to a container having a hinge cap, and can be easily opened with little force. With the goal.

In order to solve the above-mentioned problems, the present invention provides an unauthorized opening prevention cap in which a virgin cover is fitted on the outside of a cap mounted on a container as an unauthorized opening prevention cap. It has a surface and an outer peripheral wall, a folded piece is provided at the lower end of the outer peripheral wall, and the outer peripheral wall is provided with a pair of protrusions extending in the vertical direction with a certain interval, and between the two protrusions The cutout groove has a cut groove formed on the outer edge of the protruding portion, and a connecting piece is extended from the outer peripheral upper end of the cutting portion, and a pull ring is connected to the tip of the connecting piece. Adopt the configuration to do.

As an example of the folded piece, the folded piece employs a configuration characterized in that it is engaged with an engaging ridge formed below the outer periphery of the cap, and as an example of the connecting piece of the pull ring, the connected piece is The structure is characterized in that it extends toward the center of the top surface of the cover, and a pull ring is connected to the tip of the connecting piece by forming a step at the connecting portion.

As an embodiment of the cap, the cap on which the virgin cover is fitted is a hinge cap, and a pair of protrusions of the virgin cover are provided at positions sandwiching the hinge of the hinge cap. To do.

Since this invention is comprised as mentioned above, there exists the following effect.
Because a cut part was provided on the outer periphery of the virgin cover for preventing tampering, two cut grooves extending to the lower end were provided on both sides, and a connecting piece connected to the pull ring was disposed between the cut grooves. The virgin cover can be easily removed by pulling up the pull ring and then pulling it downward to open the slit groove.

  In addition, since the pull ring is connected to the tip of the connecting piece by forming a step in the connecting portion, the pull ring is lifted from the top surface of the hinge cap, and it is easy to put a finger on it.

It is a partial cross section side view of the unauthorized opening prevention cap of this invention. It is explanatory drawing of an unauthorized opening prevention cap, (a) is a top view, (b) is a partial cross section front view. It is explanatory drawing of a virgin cover, (a) is a top view, (b) is a cross-sectional front view, (c) is a bottom view. It is explanatory drawing of a virgin cover, (a) is a top view, (b) is a cross-sectional side view. It is explanatory drawing at the time of a pull ring pull start, (a) is a top view, (b) is a cross-sectional side view. It is explanatory drawing at the time of the cutting | disconnection of a torn groove | channel, (a) is a top view, (b) is a cross-sectional side view.

Next, an embodiment of an unauthorized opening prevention cap of the present invention will be described with reference to the drawings.
In FIG. 1, A is a container, B is a hinge cap, C is a virgin cover for preventing unauthorized opening, and container A is used as a container for beverages, seasonings, etc., or a container for cosmetics, detergents, etc. .

The cap base 1 of the hinge cap B is attached to the mouth of the container A by screwing or the like.
As shown in FIGS. 1 and 2, the hinge cap B has an upper lid 2 connected to the upper portion of the cap base 1 by a hinge 3 so as to be freely opened and closed, and a recess 4 is formed on the front side opposite to the hinge 3. A finger rest 5 is provided at the top.
Further, an engaging protrusion 6 is provided below the outer periphery of the cap base 1.

As shown in FIGS. 3 and 4, the tampering prevention is to prevent the hinge cap B from being tampered with by covering the hinge cap B with the virgin cover C. The outer peripheral wall 7 and the top outer peripheral surface An annular cover top surface 8 is provided.
On the outer periphery of the virgin cover C, a pair of protrusions 9 are provided with the width of the hinge 3 substantially sandwiched, and the outer edge of the protrusion 9 extends from the upper end to the lower end of the virgin cover C, leaving a thin wall In addition, a cutout portion 12 in which V-shaped slits 10 and 11 are formed is provided.

In the virgin cover C, a notch 13 is formed from the upper end of the cut portion 12 to the inner periphery of the cover top surface 8, and a connecting piece 14 extends from the upper end of the cut portion 12 toward the center of the notch 13. Has been.
A pull ring 15 is connected to the tip of the connecting piece 14 with a step formed in the connecting portion. The outer diameter of the pull ring 15 is smaller than the notch 13 so that the fingertip can enter.

  On the inner side of the lower end portion of the virgin cover C, a plurality of folded pieces 16 that are engaged with the lower side of the engaging protrusion 6 of the cap base 1 are formed.

In the embodiment, the folded pieces 16 are integrally formed at regular intervals over the entire circumference of the outer peripheral wall excluding the cut portion 12, but four folded pieces are arranged at 90 ° intervals, A plurality may be provided at regular intervals, or may be provided at the lower end of the excision part 12.
In some cases, the folded piece 16 is molded in a state of hanging from the outer peripheral wall 7 of the virgin cover C, and can be folded back inward and upward from the position during molding by post-processing.

Next, usage modes and operational effects of the tamper-evident cap will be described.
After the container A is filled with the content liquid, the hinge cap B is fitted by screwing or the like.
After that, when the virgin cover C is pushed in from above the hinge cap B, the folded piece 16 is deformed upward, gets over the engaging protrusion 6 below the outer periphery of the cap base 1 and is lowered and then restored. It becomes impossible to engage the mating protrusion 6 and pull it out again.

  In use, first, a finger is passed through the pull ring 15, pulled upward as shown in FIG. 5, and then pulled outward from the connecting piece 14 as shown in FIG. The slits 10 and 11 are sequentially cut from above and separated from between the protrusions 9.

Finally, since the outer peripheral wall 7 of the virgin cover C is not provided between the protrusions, the outer wall 7 can be easily widened, and the virgin cover C can be separated from the engaging protrusion 6 and easily removed from the hinge cap B. it can.

In this embodiment, the engaging protrusion 6 that engages with the folded piece 16 of the virgin cover C is formed below the outer periphery of the cap base 1 of the hinge cap B. However, the present invention is not limited to this and may be formed on the container A. Is possible.
The cap to which the virgin cover is fitted may be a cap that is screwed or fitted directly to the container mouth tube, and is not limited to the hinge cap.
In the case of an ordinary cap, the folded piece can also be provided at the lower end of the cut portion.

In the above embodiment, the tearing grooves 10 and 11 on both sides of the cut portion 12 are provided so as to extend from the upper end to the lower end, but only one may extend to the lower end and the other may extend to the middle portion. .
In this case, the outer peripheral wall of the virgin cover can be cut open by pulling the pull ring and the connecting piece downward to the middle part and then pulling the cut part to twist the cut groove to the lower end.

  The virgin cover of the present application can be easily removed by notching the cutout portion of the outer peripheral wall by pulling up the pull ring and pulling it outward, so that not only the hinge cap but also the lid of a container that requires cleanliness It can be widely used as a body cover cap.

A Container B Hinge cap C Virgin cover 1 Cap base 2 Upper lid 3 Hinge 4 Recess 5 Finger hook 6 Engagement protrusion 7 Outer peripheral wall 8 Cover top surface 9 Protruding part 10 and 11 Cut groove 12 Cut part 13 Cut part 14 Connection piece 15 Pull ring 16 Folded piece

Claims (4)

A tamper-evident cap with a virgin cover fitted on the outside of the cap attached to the container,
The virgin cover has an annular cover top surface and an outer peripheral wall, and a folded piece is provided at the lower end of the outer peripheral wall.
The outer peripheral wall is provided with a pair of protrusions extending in the vertical direction with a certain interval therebetween ,
Between the two projecting parts, it is a cut part with a slit groove formed on the outer edge of the projecting part,
An unauthorized opening prevention cap characterized in that a connecting piece is extended from the outer peripheral upper end of the cut portion, and a pull ring is connected to the tip of the connecting piece.   2. The tamper-evident cap according to claim 1, wherein the folded piece is engaged with an engaging protrusion formed on the lower periphery of the outer periphery of the cap. The connecting piece extends toward the center of the cover top surface,
The tamper-resistant cap according to claim 1 or 2, wherein a pull ring is continuously formed at the tip of the connecting piece by forming a step in the connecting portion. The cap on which the virgin cover is fitted is a hinge cap,
The tamper-evident cap according to any one of claims 1 to 3, wherein the pair of protrusions of the virgin cover are provided at positions sandwiching the hinge of the hinge cap.

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