JP5449960B2 - Hinge cap with tamper-evident mechanism - Google Patents

Description

  The present invention relates to a hinge cap including a cap base mounted on a mouth portion of a container and an upper lid that can be opened and closed by a hinge portion, and in particular, a hinge with an unauthorized opening prevention mechanism provided with an unauthorized opening prevention mechanism for preventing unauthorized opening. It is about the cap.

  In various containers with a hinge cap that can be opened and closed at the mouth of the container body that stores fluid contents such as liquid or powder, these contents may be illegally removed or refilled. It is necessary to prevent unauthorized opening so that no harmful substances are mixed into the contents.

Conventionally, in order to open the container by covering the hinge cap top cover and the cap base with a protective seal made of a synthetic resin film material, the protective seal must be removed to prevent the container from being opened. Widely used.
However, such a tamper-evident prevention mechanism has a drawback that the cost is high, for example, a separate process for covering the cap with a protective seal is required.
Therefore, when forming the hinge cap, a band-shaped locking member that is removably connected to the cap base is formed integrally, making the opening impossible unless the locking member is removed, and a separate manufacturing process is performed. An unnecessary tamper-evident prevention mechanism is conventionally known (see, for example, Patent Document 1).

JP 2005-178867 A

However, the tamper-evident prevention mechanism described in Patent Document 1 is provided with a band-shaped locking member that protrudes from the outer peripheral surface of the cap across a gap through which the engaging claw of the upper lid is inserted, so that the shape of the container In some cases, when the container is transported or displayed, the protruding part of the locking member or the like is caught by the protruding part of the cap of another container, and the container is brought down or the locking member or the like is broken. there were.
In addition, since this unauthorized opening prevention mechanism is provided so as to protrude from the outer peripheral surface of the cap as a whole, the possibility of being tampered with from the outside cannot be excluded.

  An object of the present invention is to solve the above problems, and in a hinge cap in which the tamper-evident prevention mechanism is separable and integrally provided, the tamper-evident prevention mechanism is prevented from protruding from the outer peripheral surface of the cap. An object is to provide a hinge cap with a mechanism.

In order to solve the above-described problems, the present invention provides a hinge cap with an unauthorized opening prevention mechanism,
In a hinge cap comprising a cap base mounted on a container body and an upper lid connected to the cap base so as to be openable and closable by a hinge, the cap base has a hinge on the outer peripheral side of an engagement tube portion fitted to the container body. Provided with an outer peripheral cylindrical portion that is continuously provided, the engaging cylindrical portion and the outer peripheral cylindrical portion are integrally connected by a connecting portion opposite to the hinge, and are connected via a weakened connecting portion that can be broken on the hinge side other than the connecting portion. And by separating the container body from the container body by pulling the upper lid, a base-side concave portion is formed on the outer periphery of the connecting portion , and a sealing portion provided integrally and separably in the base-side concave portion, It has a tamper-evident prevention mechanism comprising a locking projection protruding outward near the lower end of the upper lid that can be engaged with the sealing portion, and the sealing portion has a notch that engages with the locking projection when not opened. comprising, unless separated from the cap body The unsealed state is maintained, and the base-side concave portion and the upper lid-side concave portion formed in a part of the outer peripheral surface of the upper lid adjacent to the concave portion are accommodated so as not to protrude from the outer peripheral surface. Adopt the configuration.

As a specific embodiment of the present invention, a configuration is adopted in which the upper lid-side concave portion also serves as a finger-hanging concave portion for inserting a finger to open the upper lid .

In another specific embodiment of the present invention, the upper end of the sealing portion extends to a height that is substantially in contact with the periphery of the concave surface of the upper lid-side concave portion , and the sealing portion is in the vicinity of the upper end of the base-side concave portion. The structure characterized by being continuously provided by thin weakened pieces .

As yet another specific embodiment of the present invention, a configuration is adopted in which a tab for separating and removing the sealing portion from the cap base when opened is provided at the lower portion of the sealing portion .

According to the hinge cap with a tamper-evident prevention mechanism of the present invention, since the sealing portion that engages with the locking portion of the upper lid is provided so as to be integrated and separable with the cap base, it is integrally formed simultaneously with the formation of the hinge cap. It does not require a separate process of covering with a protective seal.
Further, since the sealing portion is accommodated in a part of the base-side concave portion and the upper lid-side concave portion of the outer peripheral surface so as not to protrude from the outer peripheral surface, when the container is transported or displayed, the sealing portion is not attached to another container. The container will not fall over due to being caught by the cap, and the sealed part or the like will not be destroyed, and when the sealed part is broken and illegally opened, it can be easily recognized by its appearance.

  In the embodiment in which the cap base is separable from the container main body, the weakened connecting portion in which the engaging cylindrical portion fitted to the container main body and the outer peripheral cylindrical portion connected to the hinge can be broken on the hinge side other than the connecting portion. Since the fitting cylinder part is relatively thick in the radial direction, a base-side recess for accommodating the sealing part can be easily provided on the connection part side opposite to the hinge. In addition, the structure of the connecting portion can be simplified to enable efficient design, and the design can be improved.

In the embodiment of the present invention in which the upper lid side concave portion also serves as the finger hanging concave portion, the upper lid can be made compact, and the upper end of the sealing portion is further extended to a height almost contacting the periphery of the concave surface of the upper lid side concave portion. If the fingers are prevented from entering the finger-hanging recess during opening, unauthorized opening can be prevented more reliably.
Further, in the embodiment of the present invention in which the sealing portion is connected to the cap base by a thin weakened piece, when the user opens the container, the sealing portion can be easily separated and removed, and a tab is provided below the sealing portion. Can be further opened easily.

It is a perspective view which shows the state just before it will be in an unopened state, when the upper cover and hinge part of a hinge cap with a tampering prevention mechanism of this invention engage. It is a front view of the unopened state of the hinge cap with an unauthorized opening prevention mechanism of this invention. It is a cross-sectional side view of the unopened state of the hinge cap with an unauthorized opening prevention mechanism of this invention. It is a figure which shows the state before closing the upper cover of the hinge cap with an unauthorized opening prevention mechanism of this invention, (a) is a cross-sectional side view [AA cross-sectional view in FIG. (B)], (b) is a lower surface. FIG. It is a figure which expands and shows the weakening piece of the hinge cap with an unauthorized opening prevention mechanism of this invention, (a) is the elements on larger scale in FIG. 3, (b) is the elements on larger scale in figure (b) of FIG. . It is a fragmentary sectional view which shows the principal part seen from the arrow direction of the BO cross section in FIG.4 (b) of FIG. 4 of the hinge cap with a tampering prevention mechanism of this invention, (a) is a figure which shows an unopened state, (B) is a figure which shows the state immediately after opening illegally.

  Next, the hinge cap with an unauthorized opening prevention mechanism of the present invention will be described with reference to the drawings showing an embodiment.

  1-4, A is a cap base | substrate, B is the upper cover attached to the cap base | substrate A through the hinge C so that opening and closing is possible, D shown by the imaginary line is a container main body.

  The cap base A is connected to the fitting cylinder portion 1 whose inner circumference is fitted to the outer circumference of the mouth portion of the container body D, and the inner circumference upper portion of the fitting cylinder portion 1, and engages with the upper lid B to cap the cap. The lid engaging portion 2 to be closed, the dispensing cylinder 3 provided continuously with the inner edge of the lid engaging portion 2, and the lower surface of the inner side of the lid engaging portion 2 are suspended, and the outer periphery is inside the mouth of the container body D. An inner cylinder 4 to be inserted around the circumference is provided.

  In addition, a partition wall 5 serving as a partition with the outside is provided in the lower part of the inner periphery of the dispensing tube 3 to seal the contents inside the container, and the partition wall 5 is plugged by a pull ring 7 having a column 6. A removal portion 8 is formed that forms a spout from which the contents are sometimes removed and the contents are poured out.

The fitting cylinder part 1 is connected to the engagement cylinder part 9 connected to the outer edge of the lid engaging part 2 and the outside of the engagement cylinder part 9, and the hinge C is connected to a predetermined position on the outer periphery. The outer peripheral cylinder part 10 provided is provided.
The engaging cylinder portion 9 and the outer peripheral cylinder portion 10 are integrally connected by a connecting portion 11 on the opposite side of the hinge C, arranged on the hinge side other than the connecting portion with a gap a therebetween, and at the lower end portion in the circumferential direction. They are connected via a weakened connecting portion 12 that can be broken and provided at intervals.
At the lower part of the inner periphery of the engagement tube portion 9, an engagement protrusion 13 that fits into the mouth portion of the container body D is provided.

On the outer periphery of the connecting portion 11 side, a base-side concave portion 14 is provided with a predetermined depth, and a sealing portion 16 provided integrally via a separable weakening piece 15 is integrally formed near the upper end thereof. .
The sealing portion 16 includes a notch 18 that engages with a locking projection 17 of the upper lid B described later. After the hinge cap is integrally formed, the upper lid B is closed and the locking projection 17 is notched. When engaged with the portion 18, the unopened state is maintained.

A tab 19 is provided at the lower part of the sealing part 16 for pulling the sealing part 16 outward and removing it by breaking when the user opens it.
The tab 19 has a non-slip 20 formed on the surface so as not to slip when pulled with a finger.
In the anti-slip 20 of the present embodiment, a plurality of concave portions are formed in the circumferential direction, but convex portions such as ribs may be formed as long as they do not protrude from the outer peripheral surface of the hinge cap.

The sealing portion 16 is accommodated in the base-side recess 14 so as not to protrude from the entire outer peripheral surface (of the outer peripheral cylindrical portion 9) of the cap base A.
As shown in FIG. 5 (a), the weakening piece 16 is connected to the sealing portion with a slight gap at the upper end of the base-side concave portion 14, and as shown in FIG. A plurality are provided with an interval of.

  The top lid B is suspended from the top wall 21, the outer cylinder 22 suspended from the outer edge of the top wall 21, and the lower surface of the top wall 21, and the outer circumference is the inner circumference of the pouring cylinder 3 of the cap base A when closed. A sealing cylinder 23 is provided to engage with.

The outer cylinder 22 is provided with an engagement recess 24 in the lower part of the inner periphery that engages with the outer periphery of the upper portion of the cover engaging portion 2 of the cap base A when the cover is closed, and maintains the closed state. A hinge C is continuously provided.
On the outer periphery of the outer cylinder 22 opposite to the hinge C, an upper lid side concave portion 25 for accommodating the sealing portion 16 is formed adjacent to the base side concave portion 14, and a notch portion 18 of the sealing portion 16 is formed near the lower end portion thereof. A locking projection 17 is formed to engage the.

The upper lid side concave portion 25 also serves as a finger hooking concave portion for hooking the tip of the finger to open the lid after separating and removing the sealing portion 16 and opening it.
Similarly to the base-side concave portion 14, the upper lid-side concave portion 25 is also provided with a depth sufficient to accommodate the sealing portion 16 so as not to protrude from the entire outer peripheral surface of the cap base body A (outer cylinder 22). The upper end of the sealing portion 16 extends to a height that substantially contacts the periphery of the concave surface near the upper end portion of the upper lid side concave portion 25.
In addition, as shown in FIG. 1, the upper lid side recess 25 is engraved with an unsealed state display portion 26 that can be visually recognized as being in an unsealed state when the sealed portion 16 is removed.

Next, the effect of the hinge cap with an unauthorized opening prevention mechanism of the present embodiment will be described with reference to the drawings.
FIG. 6A shows an unopened state, and FIG. 6B shows a state where the upper lid is forcibly opened by unauthorized pulling.

As shown in FIG. 6A, in the unopened state, the locking convex portion 17 of the upper lid B is engaged with the notch portion 18 of the sealing portion 16, and the sealing portion 16 is cap-shaped by the weakening piece 15. Therefore, the upper lid B is kept open without being opened.
The locking projection 17 of the upper lid B is press-fitted into a slight gap between the sealing portion 16 and the base-side concave portion 14 when the upper lid B is closed after molding and engaged with the notch 18 of the sealing portion 16. It is preferable to have a taper portion 27 on the lower side so that it is easy to do, and to have a hook portion 28 that catches on the upper portion of the notch portion 18 in an unopened state after engagement.
In this embodiment, the upper lid B and the sealing portion 16 are engaged with each other by the plurality of locking projections 17 and the notches 18, but the strong engagement only exceeds the breaking force of the weakening piece 15. If it can perform a match, it is not limited to the engagement form of a present Example.

  As shown in FIG. 4B, FIG. 6A, etc., the sealing portion 16 is accommodated in the base-side concave portion 14 and the upper lid-side concave portion 25 and does not protrude from the outer peripheral surface. When displaying, the sealing part 16 is not caught by the cap of another container, and a container is not fallen or the sealing part 16 is not destroyed.

Further, since the upper end of the sealing portion 16 extends to a height that is almost in contact with the periphery of the concave surface near the upper end portion of the upper lid side concave portion 25, the finger enters the upper lid side concave portion (finger holding concave portion) 25 when not opened even if tampering is attempted. Therefore, unauthorized opening can be prevented more reliably.
Instead of providing a tab 19 at the bottom of the sealing portion 16 so that the user can break and remove the sealing portion 16 when opening, a fingertip is placed between the upper end of the sealing portion 16 and the upper lid side concave portion (finger holding concave portion) 25. A clearance enough to enter may be provided so that the sealing portion 16 can be removed by breaking by pulling from the upper end.

When the upper lid B is forcibly pulled by a strong force from the unopened state of FIG. 6 (a), the weakened piece 15 is broken by the force, and the sealed portion as shown in FIG. 6 (b). It can be easily recognized that 16 is separated from the cap body A and has been tampered with.
Furthermore, if the sealing part 16 is removed, the opening display part 25 of the upper cover B will appear, and it is possible to visually recognize unauthorized opening more easily.

  In the present embodiment, the weakening pieces 15 are thin portions provided at a predetermined interval in the circumferential direction as shown in FIG. 5B. However, the weakening pieces 15 are broken by the user pulling the tab 19 or the like. It may be anything that can be done and is not limited to such a form.

The hinge cap with a tamper-evident prevention mechanism of the present embodiment can be separated from the container body and discarded after the entire contents in the container are used.
When the hinge cap is opened and the upper lid B is pulled upward, the outer peripheral cylindrical portion 10 of the cap base A is pulled via the hinge C, and the weakened connecting portion 12 is cut.
When the weakened connecting part 12 is cut, the outer peripheral cylinder part 10 is separated from the engaging cylinder part 9 and deformed, while the lower part of the engaging cylinder part 9 opposite to the hinge C is pulled through the connecting part 11. It is done.
When a part of the lower part of the engaging cylinder part 9 is pulled up, the engaging cylinder part 9 is deformed, and the fitting with the mouth part of the container main body D is removed, and the hinge cap and the container main body are separated and discarded. Can do.

The hinge cap of the present embodiment has the fitting cylinder portion 1 formed relatively thick in the radial direction between the engagement cylinder portion 9 and the outer peripheral cylinder portion 10, so that the base-side concave portion that accommodates the sealing portion 16 14 is easily provided, and by providing the base-side concave portion 14 on the connecting portion 11 side, the structure of the connecting portion 11 can be simplified and efficient design can be achieved, and the design can be improved. be able to.
Note that the hinge cap with an unauthorized opening preventing mechanism of the present invention has a structure that can be separated and discarded, and the engaging tube portion 9 and the outer peripheral tube portion 10 as in this embodiment are connected by the connecting portion 11 and the weakened connecting portion 12. Not only what was provided but various sortable disposal structures can be adopted.
Moreover, the hinge cap with a tamper-evident prevention mechanism of the present invention is not limited to a hinge cap that can be separated and discarded, and it is needless to say that it can be applied to various ordinary hinge caps.

  The hinge cap with a tamper-evident prevention mechanism of the present invention can be widely used for ordinary hinge caps that can repeatedly open and close the top lid and pour out the contents even after opening. It is suitable for use as a hinge cap for containers for beverages and foods that are required.

A Cap base B Upper lid C Hinge D Container body a Gap 1 Fitting cylinder part 2 Lid engaging part 3 Extraction cylinder 4 Inner cylinder 5 Bulkhead 6 Post 7 Pull ring 8 Removal part 9 Engaging cylinder part 10 Outer cylinder part 11 Connecting part 12 weakening connection part 13 engagement protrusion 14 base-side concave part 15 weakening piece 16 sealing part 17 locking convex part (locking part)
18 Notch portion 19 Tab 20 Non-slip 21 Top wall 22 Outer cylinder 23 Sealing cylinder 24 Engaging recess 25 Upper lid side recess (finger holding recess)
26 Opening state display part 27 Taper part 28 Hook part

Claims (5)

In a hinge cap comprising a cap base mounted on the container body and an upper lid connected to the cap base so as to be opened and closed by a hinge,
The cap base is provided with an outer peripheral cylindrical portion connected to the hinge on the outer peripheral side of the engaging cylindrical portion fitted to the container main body, and the engaging cylindrical portion and the outer peripheral cylindrical portion are integrated at a connecting portion on the opposite side of the hinge. Is connected via a weakened connecting part that can be broken on the hinge side other than the connecting part, and can be separated from the container body by pulling the upper lid, and a base-side recess is formed on the outer periphery of the connecting part side. And
A tamper-evident mechanism comprising a sealing portion provided integrally and separably in the base- side concave portion, and a locking convex portion projecting outward near the lower end of the upper lid engageable with the sealing portion;
The sealing part has a notch part that engages with the locking convex part when not opened, and maintains an unopened state unless separated from the cap base, and also includes a base-side concave part and an outer peripheral surface of the upper lid adjacent to the concave part. A hinge cap with a tamper-evident-preventing mechanism, wherein the hinge cap is housed in a recess formed on a part of the upper lid so as not to protrude from the outer peripheral surface. The hinge cap with an unauthorized opening prevention mechanism according to claim 1 , wherein the upper lid side concave portion also serves as a finger hooking concave portion for inserting a finger to open the upper lid . The hinge cap with a tamper-evident prevention mechanism according to claim 1 or 2 , wherein the upper end of the sealing portion extends to a height that is substantially in contact with the periphery of the concave surface of the concave portion on the upper lid side . The hinge cap with a tamper-evident prevention mechanism according to any one of claims 1 to 3, wherein the sealing portion is continuously provided by a thin weakened piece in the vicinity of the upper end of the concave portion on the base side . The hinge cap with a tamper-evident prevention mechanism according to any one of claims 1 to 4, wherein a tab for separating and removing the seal portion from the cap base at the time of opening is provided at a lower portion of the seal portion .

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