JP4774339B2 - Tamper evident hinge cap - Google Patents

Description

  The present invention relates to a tamper-evidence hinge cap, and more particularly to a tamper-evidence hinge cap that suitably reduces the force that the tamper-evident prevention piece is locked to the container without dropping and the upper lid is opened when the upper lid is opened. It is.

A hinge cap is widely used in which a cap body attached to a container mouth and an upper lid for sealing the cap body are hinged. In particular, in the case of a hinge cap that has a structure in which the spout is opened by a pull ring on the top wall of the cap body, if the top lid can be freely opened and closed during the distribution process, the top lid is closed even if the spout is broken by unauthorized access. Since it is not possible to determine whether the opening has been broken or not when viewed from the outside in the state, a TE hinge cap having a tamper evidence (hereinafter referred to as “TE property”) on the upper lid has also been proposed. As a means of imparting TE properties, a seal plate extending from the lower end of the peripheral wall on the side opposite to the hinge mechanism of the upper lid is inserted into the insertion hole of the cap body, and the engagement protrusion at the lower end of the seal plate is formed on the downward stepped portion. An extraction cap is known in which a lid is attached to a cap body by being pressed and engaged so that it cannot be detached (see, for example, Patent Document 1).
On the other hand, a plate-like tamper-evidence band extending to the lower end of the skirt wall is integrally formed on the opposite side of the upper lid from the hinge connection part via the weakening part, and can be bent inward at the lower end of the tamper-evidence band. A flap is provided, and when forming, the tamper-evidence band stands substantially perpendicular to the lower surface of the finger-hanging piece, and the flap is raised so that the flap extends from the lower end of the tamper-evidence band substantially in the longitudinal direction of the tamper-evidence band. There is known a TE-type hinge cap having a tamper evidence added to the upper lid, which is molded in the above-described manner, and the flap is locked to a notch disposed at the lower end of the skirt wall during assembly, and a method for manufacturing the same. (For example, refer to Patent Document 2).

Utility model registration number 2520782 JP 2004-83078 A

The conventional pouring cap is configured such that after the breaking portion connecting the upper lid and the sealing plate is pulled and broken, the sealing plate is pulled out of the insertion hole and separated downward. That is, there is a problem that when the upper lid is opened, the seal plate becomes dust immediately. In addition, there is a problem that it is difficult to set the seal plate in the insertion hole and it is not suitable for high-speed production.
In addition, in the TE hinge cap with tamper evidence added to the above-mentioned conventional upper lid, when opening the upper lid, the force to cause the flap and the force to release the fitting between the cap body and the upper lid act twice. However, there is a problem of requiring an excessive opening of the upper lid. In addition, there is a problem that the flap cannot be locked securely, and therefore the tamper evidence is not reliable.
Therefore, the problem to be solved by the present invention has been made in view of the above-mentioned problems of the prior art, and when the upper lid is opened, the tamper-evident preventive piece does not fall and is locked to the container and the upper lid is opened. It is another object of the present invention to provide a TE-type hinge cap that suitably reduces the force to be applied, and further ensures TE performance and is suitable for high-speed production.

The TE hinge cap according to claim 1 for achieving the object is formed by integrally forming a cap body attached to a container mouth and an upper lid hinged to the cap body. The upper lid is a tamper-eviding hinge cap that locks the cap body when the cap projection formed on the upper lid and the upper lid projection formed on the upper lid are locked, and the weakened portion is formed from the lower end of the skirt wall of the upper lid. The plate-shaped tamper-evident preventive piece extending through the slidably fits on a slide rail provided on the skirt wall of the cap body, and when the weakened portion breaks, the tamper-evident preventive piece is It is configured to be locked and held and to be attached to the container.
In the TE hinge cap, since the tamper-evident piece is locked and held by the neck ring of the container and is attached to the container, the tamper-evident piece is separated from dust until the cap is separated after the contents are used. No longer. In addition, the conventional tamper-evident piece is removed from the container at the same time as the top lid is opened, and as a result, it is extremely difficult to judge whether the tamper-evident piece has not been attached from the beginning or has been lost due to unauthorized access. Difficult, after all, it was impossible to know without opening the top lid, but with this TE hinge cap, since the tamper-evident piece is always attached to the container, it is very easy to judge whether the top lid has been tampered with. It becomes. In addition, without using a complicated mechanism such as a flap mechanism, the tamper-resistant piece is fitted to the slide rail, and the weakened part is attached to the container even after breaking, so it has TE property, TE property is ensured. Furthermore, the TE hinge cap is suitable for high-speed production because it has TE property by fitting the tamper-evident prevention piece to the slide rail.

3. The TE hinge cap according to claim 2, wherein the tamper-evident preventive piece is located between a neck ring of the container and a locking jaw when the upper lid is closed and is movable with respect to the slide rail. It was decided that sufficient clearance was secured.
With the above-mentioned TE hinge cap, the tamper-opening prevention piece is preferably locked and held by the neck ring of the container and attached to the container. Further, as will be described later, it is possible to perform partial release of the engagement between the upper lid and the cap body and separation from the upper lid of the tamper-evident prevention piece with a time difference.

4. The TE-type hinge camp according to claim 3, wherein when the upper lid is lifted and opened, the upper lid is moved to the cap body until the attachment attachment of the tamper-evident prevention piece is locked to the upper end of the slide rail. when the distance traveled and L _a, the distance that the upper lid is moved relative to the cap body by engagement of the cap projection portion and the upper lid protrusion to release part and L _b with respect to, L _a It was be configured such that ≧ L _b.
In the TE hinge cap, by adopting the above configuration, the engagement between the upper lid protrusion and the cap protrusion is first partially released, and the tamper-evident piece is separated from the upper lid after a delay. That is, since the partial release of the engagement between the upper lid and the cap body and the separation from the upper lid of the tamper-evident prevention piece are performed while shifting the time, the opening force for releasing the engagement between the upper lid and the cap body. Is preferably reduced, and as a result, an increase in opening force is suitably suppressed.

In the TE-type hinge cap according to claim 4, the outer peripheral surface of the tamper-evident prevention piece and the outer peripheral surface of the skirt wall are flush with each other so that the tamper-evident prevention piece does not protrude from the skirt wall of the cap body. It was decided that it was constituted as follows.
In the TE hinge cap, the tamper-evident piece is prevented from protruding from the cap body by adopting the above configuration. Thereby, it comes to contribute to the improvement of handling property and TE property.

According to the TE-type hinge cap of the present invention, when the upper lid is opened, the tamper-evident prevention piece is not detached from the container but is attached to the container and attached to the container. As a result, the tamper-evident piece does not become garbage until the cap is separated after the contents are used. In addition, since the conventional tamper-evident piece was removed from the container at the same time as the top lid was opened and became garbage, it was determined whether the tamper-evident piece was not attached from the beginning or was lost due to unauthorized access. However, in the TE hinge cap, since the tamper-evident piece is always attached to the container, it can be determined whether the top cover has been illegally accessed. It becomes extremely easy. In addition, the TE hinge cap is constructed by fitting the tamper-evident preventive piece to the slide rail without using a complicated mechanism such as a flap mechanism so that the weakened portion is attached to the container even after breaking. Since TE is provided, TE property is ensured.
When opening the top lid, the part of the engagement between the top lid and the cap body and the separation from the top lid of the tamper-evident prevention piece are performed with a time difference. The opening force for releasing the fitting is preferably reduced, and as a result, the increase in the opening force is suitably suppressed. As a result, the upper lid can be opened with a smaller opening force than before. In addition, since the tamper-evident preventive piece is attached to the cap body in a form that fits into the skirt wall of the cap body, the tamper-resistant piece does not protrude to the outside and contributes to improved handling and TE properties. Furthermore, the TE hinge cap is suitable for high-speed production because it has TE property by fitting the tamper-evident prevention piece to the slide rail.

  Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings.

FIG. 1 is an external explanatory view showing a TE hinge camp 100 according to the present invention. For convenience of explanation, the upper lid 2 is shown in a state before closing without closing the cap body 1.
The TE hinge cap 100 includes a cap main body 1 attached to the container mouth, an upper lid 2 that is hinged to the cap main body 1 and seals the cap main body 1, “unauthorized access unsealing prevention”, and “upper lid unopened certification”. And a tamper-evident prevention piece 3 that fulfills the functions of

  The cap body 1 includes a slide rail 11 to which the attachment attachment 31 of the tamper-evident prevention piece 3 is fitted, a cap projection 12 that is fitted to the upper lid projection 22 of the upper lid 2, and a pull ring 13 that is pulled by a finger. And the fitting opening 14 into which the tamper-evident prevention piece 3 is fitted. It should be noted that because of the fitting opening 14, the unauthorized opening prevention piece 3 does not protrude outward from the skirt wall of the cap body 1, and the outer circumferential surface of the unauthorized opening prevention piece 3 is the outer circumferential surface of the skirt wall of the cap body 1. And become the same.

  The upper lid 2 has an upper lid protrusion 22 that engages with the cap protrusion 12 of the cap body 1. The upper lid 2 and the cap body 1 constitute a so-called one-piece cap that is hinged.

  The unauthorized opening prevention piece 3 is a cylindrical piece having a curved surface fitted to the skirt wall of the cap body 1. A mounting attachment 31 for fitting to the slide rail 11 of the cap body 1 is formed on the belly of the cylindrical piece. The attachment attachment 31 has a so-called check structure so that once the attachment attachment 31 is fitted to the slide rail 11, the attachment attachment 31 cannot be removed from the slide rail 11 even when pulled in the direction opposite to the direction in which it is inserted. It has become.

  Further, the unauthorized opening prevention piece 3 is connected to the upper lid 2 via the weakened portion 24. When the weakened portion 24 is broken, the tamper-evident preventing piece 3 slides on the slide rail 11, and is locked and held by the neck ring of the container and the slide rail 11, as will be described later, and is attached to the container.

FIG. 2 is an explanatory cross-sectional view showing a TE hinge cap 100 according to the present invention.
The cap body 1 and the upper lid 2 are integrally connected by a hinge mechanism 21. Further, as shown in FIG. 3, the tamper-evident preventing piece 3 is slidably held by fitting both concave portions of the attachment attachment 31 to the slide rail 11. Further, the unauthorized opening prevention piece 3 is coupled to the skirt wall 23 of the upper lid 2 by the weakened portion 24.

  When the weakened portion 24 is broken, the tamper-evident prevention piece 3 moves downward along the slide rail 11 but does not come off the container by being locked to the upper surface of the neck ring NR of the container as will be described later. . As a result, as shown in FIG. 4, immediately after the upper lid 2 is opened, the tamper-evident preventive piece 3 does not become dust and scatter, and is attached to the container until the cap is separated after the contents are used.

FIG. 5 is an explanatory view showing means for reducing the opening force of the TE hinge cap 100 of the present invention. 5A shows a state before opening (no load), and FIG. 5B shows a state immediately before the engagement between the upper lid protrusion 22 and the cap protrusion 12 is partially released. .
Now, when the user pushes up the finger-hanging piece 25 and the attachment attachment 31 of the tamper-evident prevention piece 3 hits the upper end 11u of the slide rail 11 (the portion that prevents the tamper-evident prevention piece 3 from moving upward), the upper lid 2 is capped. The distance moved with respect to the main body 1 is defined as _La (sliding distance of the tamper-evident prevention piece), and the upper lid 2 is moved to the cap main body 1 until the locking between the upper lid protrusion 22 and the cap protrusion 12 is partially released. The TE hinge cap 100 is configured such that L _a ≧ L _b when the distance moved with respect to L is L _b (overcut travel distance of the upper lid). By adopting such a configuration, the weakened portion 24 breaks with a delay after the locking of the cap projection 12 and the upper lid projection 22 is partially released, and the unauthorized opening prevention piece 3 is separated from the upper lid 2. . Thereby, the opening force which cancels | releases the latching of the upper cover 2 and the cap main body 1 is reduced suitably, As a result, the raise of an opening force comes to be suppressed suitably. Thereby, the upper lid 2 can be opened with a smaller opening force than before.

In order to suitably reduce the opening force, the partial release of the locking between the upper lid protrusion 22 and the cap protrusion 12 and the separation from the upper lid 2 of the unauthorized opening prevention piece 3 are performed with a time difference. So that L _a ≦ L _b , that is, after the weakened portion 24 is broken and the tamper-evident preventing piece 3 is separated from the upper lid 2, the cap projection portion 12 and the upper lid projection portion 22 are delayed. You may comprise so that a latching may be partially cancelled | released.

As described above, according to the TE hinge cap 100, when the upper lid 2 is opened, the tamper-evident prevention piece 3 is not detached from the container but is locked to the container and attached to the container. Thereby, the tamper-evident prevention piece 3 does not become garbage until the cap is separated after the contents are used. In addition, since the conventional tamper-evident piece was removed from the container at the same time as the top lid was opened and became garbage, it was determined whether the tamper-evident piece was not attached from the beginning or was lost due to unauthorized access. However, in the TE hinge cap 100, since the unauthorized opening prevention piece 3 is always attached to the container, it is determined whether the upper lid 2 has been illegally accessed. It becomes very easy to judge. Further, the TE hinge cap 100 is configured so that the tamper-evident preventive piece 3 is fitted to the slide rail 11 without using a complicated mechanism such as a flap mechanism, and the weakened portion 24 is attached to the container even after breaking. Since the TE property is given by the above, the TE property is ensured. Furthermore, since there is no dust when the container is used, there is no complication when the container is used. When the upper lid 2 is opened, the partial release of the locking between the upper lid 2 and the cap body 1 and the unauthorized opening prevention piece 3 are eliminated. Since the separation from the upper lid 2 is performed with a time difference, the opening force for releasing the engagement between the upper lid 2 and the cap body 1 is preferably reduced, and as a result, the opening force is increased. It becomes suppressed suitably. Thereby, the upper lid 2 can be opened with a smaller opening force than before. Further, since the tamper-evident preventive piece 3 is attached to the cap body 1 in a form that fits into the skirt wall 15 of the cap body, it does not protrude to the outside and contributes to improvement in handling properties and TE properties. Further, since the tamper-resistant piece 3 is fitted to the slide rail 11 so as to have the TE property, it is suitable for high-speed production.

  The TE hinge cap of the present invention can be suitably applied to the hinge cap of containers such as seasonings and beverages.

It is external appearance explanatory drawing which shows the TE property hinge camp which concerns on this invention. It is a section explanatory view showing a TE hinge cap concerning the present invention. It is explanatory drawing which shows fitting with the cap main body and upper cover which concern on this invention. It is explanatory drawing which shows the state which the upper cover of the TE hinge cap based on this invention opened. It is explanatory drawing which shows the means to reduce the opening force of the TE type hinge cap of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap main body 11 Slide rail 12 Cap projection part 13 Pull ring 14 Insertion opening 15 Cap body skirt wall 2 Upper lid 21 Hinge mechanism 22 Upper lid projection part 23 Skirt wall 24 Weakening part 25 Finger hanging piece 3 Unauthorized opening prevention piece 31 Mounting attachment 100 TE property Hinge cap

Claims (4)

  A cap body attached to the container mouth and an upper lid hinged to the cap body are integrally formed, and the cap projection formed on the cap body and the upper lid projection formed on the upper lid are locked. Thus, the upper lid is a tamper-eviding hinge cap that closes the cap body, and a plate-like tamper-evident piece extending from the lower end of the skirt wall of the upper lid through the weakened portion is formed on the skirt wall of the cap body. When the weakened portion is slidably fitted to a provided slide rail, and the tamper-evident prevention piece is configured to be locked and held by a neck ring of the container and attached to the container. Tamper evident hinge cap.   The said tamper-evident prevention piece is located between the neck ring of the container and the locking jaw when the upper lid is closed, and a clearance that can move with respect to the slide rail is secured. Tamper evident hinge cap. When the upper lid is lifted lid opening, a distance that the mounting attachment of the tamper-evident piece upper lid before locking the upper end of the slide rail is moved relative to the cap body and L _a, wherein L _a ≧ L _b is established, where L _b is a distance that the upper lid has moved relative to the cap body before the engagement between the upper lid protrusion and the cap protrusion is partially released. Item 3. The tamper evident hinge cap according to Item 1 or 2.   4. The tamper-evident prevention piece is configured such that an outer peripheral surface of the tamper-evident prevention piece and an outer peripheral surface of the skirt wall are flush with each other so as not to protrude from the skirt wall of the cap body. The tamper evident hinge cap according to any one of the above.

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