JP2006176187A - Hinged cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinged cap that has high sealability by a simple configuration. <P>SOLUTION: The hinged cap includes a cap body (2) having a discharging opening (2a) for discharging the contents of a container (1) and attached to the mouth (1a) of the container (1), and a cap (4) having a stopper (3) fitted in the discharging opening (2a) of the cap body (2), thereby closing the discharging opening (2a), and swinguably connected to and held by the cap body (2) via a hinge (h). In such a hinge cap, the cap (4) is provided with an inverting wall (6) by which the stopper (5) fitted in the discharging opening (2a) of the cap body (2) by the cap (4) partially inverted is pushed deeper into the discharging opening (2a). An annular step (3) extending down in the direction of the bottom of the container (1) is formed on the side wall defining the discharging opening (2a). The stopper (5) includes an annular projection (5a) or projections formed at intervals. The projection or projections separably engage with the step (3) when the stopper is further pushed by the cover (4) partially inverted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hinge cap, and in particular, intends to reliably prevent leakage of contents due to opening of the cap at the stage of merchandise distribution.

  The so-called hinge cap, which has a cap body attached to the mouth of the container and a lid body that is swingably connected to the cap body via a hinge, can be easily opened and closed with one hand. In addition, since the loss of the lid can be prevented, it is used in a wide range of fields such as a seasoning container, a chemical container, a shampoo, and a container for rinsing.

By the way, a container with a hinge cap is likely to be tampered with, and often suffers from problems such as opening of the lid and leakage of contents when an unexpected impact force is applied in the distribution stage of the product. As can be seen, improvements have been made to increase the fitting force between the spout and the stopper for the purpose of preventing liquid leakage during distribution. At this time, it is difficult to open the lid, and even if the lid can be opened, it causes a problem such as a feeling that the lid is attached very firmly. Therefore, in recent years, a virgin tip that can be removed by tearing when opening this type of cap has been attached (for example, see Patent Document 1).
JP-A-9-12054

  The conventional hinge cap provided with the virgin tip can be confirmed at a glance whether or not the virgin tip has been dropped off, so that it has been regarded as a useful means for reliably determining whether or not the tampering has been performed.

  However, even with such a hinge cap, if a large impact is applied to the cap at the distribution stage of the container, the virgin tip breaks from the connecting portion and the seal by the lid or plug cannot be maintained. There was still some room for improvement.

  It is an object of the present invention to prevent a lid from easily opening even when an impact is applied before opening a container, so that the contents do not leak out, and to maintain a stable seal during use. We are proposing a new hinge cap with excellent usability.

The present invention has a cap body that has a spout for pouring out the contents in the container and is attached to the mouth of the container, and a plug that fits into the spout of the cap body and closes the spout. A hinge cap provided with a lid that is pivotably coupled to and held by the cap body via a hinge,
The lid body is provided with an inversion wall portion for locally inverting the lid body and pushing the plug body fitted into the spout of the cap body into the back of the spout,
In the spout, an annular stepped portion is formed on the side wall that steps downward toward the inside of the container.
An annular projection or a projection arranged intermittently at intervals is provided on the plug body so as to releasably engage with the stepped portion by further pushing the lid body by local reversal and to maintain a higher sealing performance. A hinge cap characterized by being formed.

  The local inversion of the lid body by the inversion wall portion can be performed using the thin wall portion.

  In the closed state where the lid is aligned with the cap body, the plug provided on the back of the lid is fitted into the spout of the cap body and the spout is closed, but the lid is locally inverted. By pushing the plug body further into the outlet, the insertion allowance of the plug body increases.

  Then, when the annular projection of the stopper is engaged with the annular stepped portion that is stepped down toward the inside of the container on the side wall of the spout by further pushing of the stopper by the local inversion of the lid, this engagement Since the sealing performance at the site is enhanced, the lid does not open easily even if an impact is applied during the distribution stage of the product.

  Furthermore, after being opened once, the spout is sealed with the plug and the projection of the plug in close contact with the lid closed, so that the stable sealing state is maintained. Since the plug is engaged with the spout in a press-fitted state, the lid can be easily opened.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view showing an embodiment of a hinge cap according to the present invention.

  In the figure, 1 is a container for filling the contents, 2 is a cap main body (the example shown in the drawing indicates mounting by a screw) attached to the mouth 1a of the container 1 by screw or undercut engagement. The main body 2 has a cylindrical spout 2a for pouring out the contents in the container 1.

  Reference numeral 3 denotes a sealing step provided on the side wall of the spout 2 a of the cap body 2. As shown in FIG. 2, the stepped portion 3 has a shape that steps downward toward the inside of the container 1 below the tapered inner surface above the spout 2 a.

  Reference numeral 4 denotes a lid body connected to the cap body 2 through a hinge h so as to be opened and closed, and 5 denotes a plug body integrally formed on the back surface of the lid body 4. The plug body 5 is inserted into the spout 2a of the cap body 2 to close the spout 2a when the lid body 4 is closed. In the vicinity of the tip, the plug body 5 extends around the axis of the plug 5. An annular projection 5a is provided, and the center portion is formed as a hollow cylindrical portion that opens downward (see FIG. 2).

  Furthermore, 6 is an inversion wall part which can invert the cover body 4 locally including the site | part in which the plug body 5 was provided. The inversion wall portion 6 is supported by the thin portion 6a. After forming the hinge cap with the lid body 4 open, the lid body 4 is closed and the inversion wall portion 6 is further pushed downward. As shown in FIG. 1, the container can be sealed by reversing, and the stopper 5 is pushed further into the spout 2a, and the annular protrusion 5a provided in the vicinity of the tip is provided on the side wall of the spout 2a. Engages with the stepped portion 3 provided in the.

  If the reversal wall portion 6 is reversed at the stage before opening the container (product distribution stage), the sealing performance of the cap is increased and the lid 4 is not easily opened by an unexpected impact.

  FIG. 3 shows a state in which the lid 4 is closed again after the container is opened at one end, and is used as a lid while maintaining the same state at the time of use. In this case, the plug body 5 only fits into the spout 2a, and this also maintains a certain degree of stable sealing performance. When opening the lid 4, as described above, since the stopper 5 is press-fitted into the spout 2 a, the lid 4 can be easily opened. When a strong seal is desired during storage after opening, the reversal wall 6 can be reversed and resealed when the lid 4 is closed. If the reversal wall portion 6 is reversed and resealed when the lid 4 is closed, it can be used as a hinge cap having a child proof function as a hinge cap that is difficult to open by the force of an infant.

  The inversion wall portion 6 has been exemplified for the case where the thin wall portion 6a is provided for inversion, but other means can be applied as long as the inversion wall portion 6 can be inverted without impairing the sealing performance or increasing the number of components. This is possible and is not limited to the case where the thin portion 6a is used as the reversing means.

  The projection 5a has been exemplified for the case where an annular projection is applied. However, if it is possible to reliably seal the spout 2a only by press-fitting the plug body 5, the annular projection 5a is placed around the plug body 5. Instead of the protrusions (or protrusions) arranged intermittently at intervals, the protrusions 5a themselves do not have to have a sealing function.

  Although the hinge cap according to the present invention is not shown, a virgin tip that can be torn off when opening the cap from the viewpoint of preventing unauthorized opening at the merchandise distribution stage can also be provided.

  With a simple mechanism, high sealing performance can be maintained, a stable seal can be maintained during use, and a hinge cap with good usability can be provided.

It is sectional drawing which showed embodiment of the hinge cap according to this invention. It is the figure which showed the principal part of FIG. It is sectional drawing which showed the state after opening about the hinge cap shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 1a Mouth part 2 Cap main body 2a Spout 3 Step part 4 Lid body 5 Plug body 5a Annular protrusion 6 Inversion wall part 6a Thin part

Claims (2)

A cap body having a spout for pouring out the contents in the container and attached to the mouth of the container; and a cap body that fits into the spout of the cap body and closes the spout. A hinge cap including a lid that is openably and closably connected via a hinge,
The lid body is provided with an inversion wall portion for locally inverting the lid body and pushing the plug body fitted into the spout of the cap body into the back of the spout,
In the spout, an annular stepped portion is formed on the side wall that steps downward toward the inside of the container.
An annular projection or a projection arranged intermittently at intervals is provided on the plug body so as to releasably engage with the stepped portion by further pushing the lid body by local reversal and to maintain a higher sealing performance. A hinge cap characterized by being formed.   The hinge cap according to claim 1, wherein the local inversion of the lid body by the inversion wall portion is due to the thin wall portion.

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