JP2557179Y2 - Hinge cap - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge cap, and more particularly, to a hinge cap which has excellent sealing properties and does not require a strong force when opening.

[0002]

2. Description of the Related Art A cap fitted to a mouth of a container is required to be easily opened and closed and to be surely sealed. It has been subjected. In particular, in the case of liquid containers such as detergents, shampoos, rinses, and edible oils, sometimes one-handed operation is required, so the lid can be opened and closed with one hand and the opened cap can be used. In order to prevent the cap from being lost, there has been proposed a hinge cap which is connected to a cylindrical wall fitted to a container mouth with a hinge integrally formed of a synthetic resin.

[0003] Generally, a hinge cap comprises a cap body fitted or screwed into a container mouth, and an upper lid connected to the cap body by a hinge. When the cap is closed, the upper lid covers the top plate of the cap body. Is formed. In this cap, engagement projections are provided around the upper lid and around the cap body top plate, respectively, and these are engaged to fix the upper lid, and the sealing performance of the cap is maintained.

[0004]

However, in the case of a hinge cap, such as the former cap, in which the sealing property of the cap is also maintained by an engaging portion for fixing the upper lid to the cap body, the sealing property is maintained. Therefore, it is necessary to strengthen the engagement between the upper lid and the cap body. For this reason, a strong force is required to release this engagement at the time of opening, and it has not yet been sufficiently satisfactory in terms of ease of opening.

Further, if the engagement between the upper lid and the cap body is weakened due to the repeated opening and closing of the cap, not only the feeling of fixing the upper lid is weakened, but also problems such as leakage of contents may occur. Also known is a cap in which a projection provided on the upper lid is inserted into a pouring opening to prevent leakage of the contents for the purpose of maintaining the sealing property other than the engagement portion,
In addition to limiting the size and shape of the opening for pouring, there is a problem that sufficient sealing cannot be obtained, and it cannot be applied to contents that require high sealing. Also, the engagement between the upper lid and the cap body must be strengthened.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hinge cap which does not require a strong force when opening the cap and which can obtain excellent sealing performance of the cap.

[0007]

Means for Solving the Problems The present invention has been proposed to achieve the above-mentioned object, and the upper lid and the cap body are engaged with each other at two places of a contact portion and an engagement portion, and
It is characterized in that it is configured to apply the acting force in each of the engaging portions in opposite directions. That is, according to the present invention, the container comprises a top plate (6) and a skirt (5) hanging down from the top plate, and the top plate is fitted into a container opening provided with an opening (8) for discharging contents. A cap body (2) to be fitted or screwed, and an upper lid (3) hingedly connected to the cap body so as to cover the top plate of the cap body, and an engaging portion for fixing the upper lid and the cap body when the cap is closed. Hinge body having a cap body
(2) has an annular groove (2) formed near the center of the top plate (6).
4) and a first annular side wall (7) erected from the inside of the groove, a top plate portion having a pouring opening (8) at substantially the center is formed, and a top cover (3) The first annular side wall (7)
A second annular side wall (12) having an annular protrusion (21) which engages with and closes to an annular protrusion (20) formed on the upper outer surface of
On the outer side near the distal end of the annular side wall, an engagement projection (27) that engages with and engages with an engagement projection (28) formed on the inner surface of the outer side wall (25) of the annular groove is formed. A featured hinge cap is provided.

[0008]

As described above, in the conventional hinge cap, the fixing of the cap body and the upper lid and the sealing of the cap are performed by a single engaging portion. It was inevitable that a strong force was required for opening. In the present invention, by separately providing the close contact portion for maintaining the sealing property of the cap and the engaging portion for fixing the upper lid to the cap body, the engagement for releasing the upper lid and the engagement for sealing are provided. An important technical feature is that it is possible to disperse the force required for release and to enable opening without requiring a strong force.

In other words, the strongest force is required when opening the cap when releasing the initial engagement. In the conventional cap, all the forces are required for the initial disengagement. On the other hand, in the present invention, since only the engagement for fixing the upper lid to the cap main body needs to be released first, there is a feature that the force required for opening is significantly reduced.

In addition, since the sealing portion for maintaining the sealing property of the cap is provided immediately adjacent to the pouring opening, the contents leaked by vibration or the like into the space formed by the top plate of the cap body and the inner surface of the upper lid. There is also a feature in terms of function that no water is accumulated and the hands are not stained when the upper lid is opened, and the consumer does not feel discomfort due to the stains on the top plate.

The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention. In FIG. 1, a hinge cap generally represented by (1) is formed by integral molding in which a cap body (2) and an upper lid (3) are connected by a hinge (4). Have been. The cap body (2) comprises a skirt (5) and a top plate (6), and is used by being fitted or screwed to a container mouth (not shown).

The cap body (2) is surrounded by an annular groove (24) formed near the center of the top plate (6) and a first annular side wall (7) standing from the inside of the groove, and has a substantially central portion. Pour opening in section
(8) is formed, and an annular projection is formed on the upper outer surface of the first annular side wall. A second annular side wall (12) having an annular projection (21) which engages with an annular projection (20) formed on the upper outer surface of the first annular side wall (7) is provided on the upper surface inside the upper lid (3). ) Holds down toward the bottom of the annular groove, and engages with and engages with an engaging projection (28) formed on the inner surface of the outer side wall (25) of the annular groove outside the vicinity of the tip of the second annular side wall. An engagement projection (27) is formed.

A recess (9) is formed in a portion of the skirt portion (5) facing the hinge (4), and a hinge (9) of the upper lid (3) is formed.
This is a clue when opening the plug in combination with the tongue piece (10) provided at the part opposite to (4). In this example, the cap body (2) and the top lid (3) are
(9) and tongue pieces (10) are fixed by engaging projections provided on the portion.

Therefore, the cap body (2) and the upper lid (3)
The engagement between the annular projection (20) formed on the upper side of the first annular side wall (7) and the annular projection (21) of the second annular side wall (12)
In addition, the engagement is performed at two places by the engagement between the engagement projection (27) near the tip of the second annular side wall and the engagement projection (28) formed inside the annular groove outer side wall (25). As a result, there is an advantage that the adhesiveness is improved and the force required for opening the plug is small. Therefore, unexpected overflow of the contents, such as when a large force is required for opening, is avoided,
Even in ordinary households, housewives and children can be safely opened,
Convenience of handling of the container will be provided.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. This example is intended to illustrate a preferred embodiment of the present invention, but is not limited thereto.

In FIG. 2, which shows a cross-sectional view of a preferred embodiment of the present invention, an inner ring (14) is provided on the cap body (2), and a container opening (13) is provided below the inside of the skirt (5). And a screw portion (15) screwed into the container opening (1).
The cap body (2) is screwed into 3). Cap body
An annular groove (24) formed integrally with the top plate and a first annular side wall (7) standing up from the inside of the groove are formed substantially at the center of the top plate (6) of (2). . An annular projection (20) is formed on the upper outside of the first annular side wall, and the annular projection is formed on the top surface of the second annular side wall (12) hanging from the top surface of the upper lid toward the annular groove (24). An annular protrusion (21) formed on the inside of the side
It is configured so as to engage with and adhere to.

The distal end of the first annular side wall is usually formed in a flat surface, and a content discharge opening (8) is formed substantially in the center thereof. Further, on the outer side near the distal end of the second annular side wall, an engaging protrusion (27) that engages with and engages with an engaging protrusion (28) formed inside the outer side wall (25) of the annular groove (24). Are formed. As a result, the fixing of the upper lid (3) to the cap body (2) is performed in two places: the annular projection (20) and the annular projection (21), the engagement projection (27) and the engagement projection (28), Even if the engaging force at each engaging part is not so large, it is excellent in sealing performance by engaging at two places, and it is easy to handle even for housewives and children without large force when opening. There is an advantage that can be.

In the above embodiment, the first annular side wall (7) having the pouring opening (8) and the second annular side wall hanging from the upper lid are provided.
(12) is provided at the upper part of the side wall, so that the space where the contents flowing out from the discharge opening (8) due to vibration or the like stays is limited to a small portion above the opening. There is no leakage of the contents, and the sealing performance is excellent.

[0019]

According to the present invention, by providing the close contact portion near the pouring opening separately from the engaging portion between the upper lid and the cap main body, the acting force generated at each engaging portion is contradictory. In this manner, it is possible to provide a hinge cap which can maintain excellent sealing properties, reduce the force required for opening, and also have excellent opening properties.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an example of a hinge cap of the present invention.

FIG. 2 is a sectional view showing an example of the hinge cap of the present invention.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Hinge cap 2 Cap main body 3 Upper lid 4 Hinge 7 1st annular side wall 8 Injection opening 12 2nd annular side wall 20 Annular protrusion 21 Annular protrusion 24 Annular groove 27 Engagement protrusion 28 Engagement protrusion

Claims (1)

(57) [Scope of request for utility model registration] 1. A top plate (6) and a skirt (5) hanging from the top plate, wherein an opening for discharging contents is provided in the top plate.
(8) A cap body (2) fitted or screwed into the container mouth provided with the cap body, and an upper lid (3) hinged to the cap body so as to cover the cap body top plate. In a hinge cap having an engaging portion for fixing an upper lid and a cap body, a cap body (2) has an annular groove (24) formed near the center of a top plate (6) and an upright standing inside the groove. A top plate portion is formed which is surrounded by a first annular side wall (7) and has a pouring opening (8) at a substantially central portion.
The second annular side wall (12) of the annular protrusion (21) which engages with and adheres to the annular protrusion (20) formed on the upper outer surface of the annular side wall (7) hangs down, near the tip of the second annular side wall. A hinge cap, wherein an engagement projection (27) is formed on the outside so as to engage with an engagement projection (28) formed on the inner surface of the outer side wall (25) of the annular groove.