JPH08156957A - cap - Google Patents

Abstract

PURPOSE: To seal and open a pour-out nozzle formed on a cap body by a simple one touch operation. CONSTITUTION: In a cap 10 provided with a cap body 11 having a pour-out nozzle 20 formed thereon and attachable to a container 17 and an upper lid 12 connected to the cap body by a hinge 13 for opening and closing the cap body, the upper lid is formed into a nearly semi-spherical shape and is provided on the inner side with an engaging part 27 engageable with the end of the pour-out nozzle in a liquid tight condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap mounted on a container, and more particularly to a cap which can be used for one-touch capping and unsealing of a pouring nozzle formed on the cap.

[0002]

2. Description of the Related Art Conventionally, a cap attached to a container has a cap body and an upper lid as in the invention disclosed in Japanese Utility Model Laid-Open No. 62-90342, and the container contents are poured into the cap body. A pouring nozzle is formed. The upper lid is provided so as to be openable and closable with respect to the cap body, and is configured to cover the pouring nozzle.

In this conventional example, in particular, in order to prevent the contents of the container from leaking from the spouting nozzle at the distribution stage, when the upper lid is closed, the spouting nozzle tip is internally plugged, and the upper lid is opened at the time of use. The stopper is removed and the above contents are poured out from the pouring nozzle. Further, when not in use thereafter, the tip of the pouring nozzle may be closed by the inner surface of the upper lid when the upper lid is closed without using the inner plug.

[0004]

However, in the above-mentioned conventional example, when the inner plug is used, the operation of opening and closing the upper lid and the attaching / detaching operation of the inner plug must be carried out separately, and the operation of the pouring nozzle Cannot be closed and closed with one touch. When the inner plug is not used, the pouring nozzle can be opened and closed at the same time by opening and closing the upper lid, but the inner surface of the upper lid only contacts the tip of the pouring nozzle when the lid is opened. , It cannot be said that the pouring nozzle is sealed. Therefore, the contents may leak from the pouring nozzle when the lid is closed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cap which can close and open the pouring nozzle formed on the cap body with one touch.

[0006]

According to a first aspect of the present invention, there is provided a cap main body having a spout nozzle formed therein and which can be mounted on a container, and a cap main body connected to the cap main body via a hinge to open and close the cap main body. In a cap having an enabling upper lid, the upper lid is formed in a substantially hemispherical shape,
Inside the upper lid, there is provided a fitting portion that can be fitted to the tip of the pouring nozzle in a liquid-tight state.

According to a second aspect of the present invention, the fitting portion of the first aspect is such that a tapered taper is formed on the hinge side of the outer peripheral surface of the tip.

The invention described in claim 3 is the invention according to claim 1 or 2.
The taper having a tapered shape is formed on at least one of the hinge side of the outer peripheral surface of the tip of the pouring nozzle described above and the edge side of the upper lid opening on the outer peripheral surface of the tip of the fitting portion.

[0009]

Therefore, according to the cap of the first aspect of the invention, the following actions (1) and (2) are achieved. Since the fitting part is formed on the upper lid and this fitting part is configured to be liquid-tightly fitted to the tip of the pouring nozzle of the cap body, the fitting part of the upper lid can be connected to the pouring nozzle by simply closing the upper lid. It can be hermetically sealed and the spout nozzle can be sealed tightly with one touch.
Further, since the fitting portion is detached from the pouring nozzle simply by opening the upper lid, the pouring nozzle can be opened with one touch.

Further, since the upper lid is formed in a substantially hemispherical shape, when the fitting portion of the upper lid is attached to or detached from the pouring nozzle of the cap body, the upper lid is easily deformed outward in the radial direction of rotation about the hinge. it can. For this reason, the fitting portion easily gets over the tip of the spout nozzle, and the fitting portion and the spout nozzle can be fitted and detached easily.

According to the cap of the invention as defined in claim 2, the following action is exhibited. Since a tapered taper is formed in the fitting portion on the hinge side of the outer peripheral surface of the tip, the fitting portion moves relative to the tip of the pouring nozzle along the taper at the initial stage of opening the upper lid. Therefore, the fitting portion can be easily separated from the pouring nozzle.

According to the cap of the third aspect of the invention, the following action is exhibited. At least one of the hinge side on the outer peripheral surface of the tip of the pouring nozzle or the opening edge side of the upper lid on the outer peripheral surface of the fitting portion has a taper with a tapered shape. It moves relative to the pouring nozzle along the taper and fits into the pouring nozzle. Therefore, it is possible to easily fit the fitting portion to the pouring nozzle.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a closed state in an embodiment of the cap according to the present invention. FIG. 2 is a cross-sectional view showing a process of opening the cap of FIG. FIG. 3 is a cross-sectional view showing a process of closing the cap of FIG. 1.

As shown in FIG. 1, the cap 10 is made of a thermoplastic resin by integrally forming a cap main body 11 and an upper lid 12 via a hinge 13. The thermoplastic resin is preferably low density polyethylene and linear low density polyethylene, for example.

When such a thermoplastic resin is used, the amount of deformation of the upper lid 12 becomes large to facilitate the opening and closing of the lid when the lid is opened and closed, and the upper lid 12 is immediately restored to its original shape after the deformation. Then, as will be described later, when the lid is closed, the airtightness of the space 25 surrounded by the cap body 11 and the upper lid 12 is improved, and the sealing performance of the pouring nozzle 20 is also improved.

Double peripheral walls 15 and 16 are integrally formed on the cap body 11 on the outer peripheral side of the lower surface of the top surface 14. The wedge protrusion 22 is integrally formed on the inner surface of the peripheral wall 16. The mouth portion 18 of the container 17 is fitted between the peripheral walls 15 and 16, and the cap 10 is attached to the container 17. At this time, the wedge protrusion 22 engages with the tip of the mouth portion 18,
The cap 10 is prevented from coming off the container 17. The container 17 is configured to be flexibly deformable and has a squeeze property.

In the cap body 11, the central portion of the upper surface of the top surface 14 bulges upward in the drawing to form a hollow hemispherical top portion 19. The pouring nozzle 20 is integrally formed on the top portion 19. This pouring nozzle 20 has a top surface 1
4 is formed so as to project outward with a predetermined inclination angle. The dispensing nozzle 20 communicates with the mouth portion 18 of the container 17 via the top portion 19 and the peripheral wall 15, and by squeezing the container 17, the contents (for example, liquid) in the container 17 can be dispensed.

In the cap body 11, a protrusion 23 is integrally formed on the outer peripheral portion of the top surface 14. The ridge 23 has a semicircular cross section, and is formed over substantially the entire circumference of the top surface 14 except for the portion corresponding to the hinge 13. The protrusion 23 is engageable with the inner peripheral edge 24 of the opening of the upper lid 12, and the upper lid 12 covers the cap body 11. At this time, the cap body 11
The space 25 formed by being surrounded by the upper lid 12 is maintained in a substantially sealed state.

The upper lid 12 is configured to be opened and closed with respect to the cap body 11 by a hinge 13, and covers the top surface 14, the top portion 19 and the pouring nozzle 20 of the cap body 11 when the lid is closed. The upper lid 12 is formed in a hemispherical shape and facilitates outward deformation in the radial direction of rotation about the hinge 13 as shown by the chain double-dashed line in FIGS. 2 and 3. As a result, the fitting portion 27, which will be described later, can easily get over the tip 21 of the spout nozzle 20.

A fitting portion 27 is formed on the inner surface of the upper lid 12 at a position corresponding to the tip 21 of the pouring nozzle 20 when the lid is closed. The fitting portion 27 is detachably fitted to the tip 21 of the dispensing nozzle 20 when the upper lid 12 is closed, and enables the dispensing nozzle 20 to be liquid-tightly closed (sealed).

A taper 28 is formed on the outer peripheral surface of the fitting portion 27 on the hinge 13 side. This taper 28 is
The fitting portion 27 is formed in a tapered shape, and at the initial stage (FIG. 2) of the opening process of the upper lid 12, the tip 21 of the pouring nozzle 20 relatively moves along the taper 28 and the fitting portion 27 is poured. The ejection nozzle 20 can be easily detached.

Further, in the pouring nozzle 20, a taper 29 is formed on the outer peripheral surface of the tip on the hinge 13 side. The taper 29 is formed in a shape that tapers the pouring nozzle 20, and at the final stage (FIG. 3) of the closing process of the upper lid 12, the opening inner peripheral edge 24 side portion of the fitting portion 27 is relatively moved along the taper 29. It moves to facilitate fitting the fitting portion 27 to the pouring nozzle 20. In addition, a taper 30 for tapering the fitting portion 27 is formed on the inner peripheral edge portion of the fitting portion 27 instead of the taper 29 or together with the taper 29, and the fitting portion 27 and the fitting portion 27 are poured out. Fitting with the nozzle 20 may be facilitated.

Next, the operation will be described. Opening process (Fig. 1 →
In FIG. 2), by pushing up the collar portion 26 of the upper lid 12,
The engagement between the inner peripheral edge 24 of the upper lid 12 and the projection 23 of the cap body 11 is released, and the upper lid 12 is rotated about the hinge 13. At this time, the pouring nozzle 20 is attached to the fitting portion 2
The upper lid 12 is deformed outward in the rotational direction about the hinge 13 by moving the upper lid 12 relative to each other along the taper 28. In this way, the fitting portion 27 gets over the pouring nozzle 20 and separates from the pouring nozzle 20, and the upper lid 12 is opened.

In the lid closing process (FIG. 3 → FIG. 1), the upper lid 12 is pushed down and rotated about the hinge 13. At the final stage of this lid closing process, the fitting portion 27 moves along the taper 29 of the pouring nozzle 20, the upper lid 12 is deformed outward in the rotation direction around the hinge 13, and the fitting portion 27 is formed. Pouring nozzle 2
Get over 0. Then, the fitting portion 27 is fitted to the pouring nozzle 20, and the pouring nozzle 20 is tightly plugged, and the inner peripheral edge 24 of the opening of the upper lid 12 is engaged with the protrusion 23 of the cap main body 11 to form the upper lid. 12 closes.

According to the above embodiment, the following effects (1) to (4) are obtained. Since the fitting portion 27 is formed on the upper lid 12 and the fitting portion 27 is configured to be liquid-tightly fitted to the tip 21 of the spout nozzle 20 of the cap body 11, only by closing the upper lid 12,
The fitting portion 27 of the upper lid 12 seals the pouring nozzle 20 so that the pouring nozzle 20 can be securely plugged with one touch. In addition, the fitting portion 27 causes the spout nozzle 2 to be opened simply by opening the upper lid 12.
Since it is separated from 0, the pouring nozzle 20 can be opened with one touch.

Further, since the upper lid 12 is formed in a substantially hemispherical shape, when the fitting portion 27 of the upper lid 12 is attached to or detached from the pouring nozzle 20 of the cap body 11, the upper lid 12 has a radius of gyration about the hinge 13. Can be easily deformed outward in the direction. Therefore, the fitting portion 27 easily gets over the tip 21 of the dispensing nozzle 20, and the fitting portion 27 and the dispensing nozzle 20 can be easily fitted and separated.

Furthermore, since the tapered taper 28 is formed on the fitting portion 27 on the hinge 13 side of the tip outer peripheral surface, the fitting portion 27 causes the fitting nozzle 27 to discharge at the initial stage of opening the upper lid 12.
It moves relative to the tip 21 of 0 along the taper 28. Therefore, the fitting portion 27 can be easily separated from the pouring nozzle 20.

Further, the tapered taper 29, 30 is formed on at least one of the hinge 13 side on the tip outer peripheral surface of the pouring nozzle 20 and the opening inner peripheral edge 24 side on the tip outer peripheral surface of the fitting portion 27. At the final stage of closing the upper lid 12, the fitting portion 27 moves relative to the pouring nozzle 20 along the taper 29, 30 and the pouring nozzle 20
To fit. Therefore, the spout nozzle 2 of the fitting portion 27
The fitting to 0 can be facilitated.

[0029]

As described above, according to the cap of the present invention, the pouring nozzle formed on the cap body can be securely sealed and opened with one touch.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a closed state in an embodiment of a cap according to the present invention.

FIG. 2 is a cross-sectional view showing an opening process of the cap of FIG.

FIG. 3 is a cross-sectional view showing a process of closing the cap of FIG.

[Explanation of symbols]

 10 Cap 11 Cap Main Body 12 Upper Lid 13 Hinge 17 Container 20 Pour Nozzle 21 Tip of Pour Nozzle 27 Fitting Part 28, 29 Taper

Claims (3)

[Claims] 1. A cap body having a spout nozzle formed therein and mountable to a container, and an upper lid connected to the cap body via a hinge to open and close the cap body.
In the cap having the above-mentioned, the upper lid is formed in a substantially hemispherical shape, and a fitting portion capable of being fitted in a liquid-tight state at a tip of the pouring nozzle is provided inside the upper lid. . 2. The cap according to claim 1, wherein the fitting portion is formed with a tapered taper portion on the hinge side of the outer peripheral surface of the tip. 3. The tapered taper is formed on at least one of a hinge side of an outer peripheral surface of a tip of the pouring nozzle and an edge side of an upper lid opening of an outer peripheral surface of a tip of the fitting portion. Cap.