JPH0449100Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a closure for a container opening.

[Conventional technology]

BACKGROUND ART Conventionally, there are many known container mouth closures that open and close the container mouth with a cap. In this case, in order not to lose the cap, a plastic strip was connected to the cap.
As shown in Japanese Patent No. 33440, a cap body is fixed to the mouth and neck forming the mouth of the container, and the cap is attached to this cap body via a so-called three-point hinge.

[Problem that the invention attempts to solve]

The cap that closes the container mouth with a three-point hinge is
Although the container mouth is closed by the spring force of the three-point hinge, the spring force is not necessarily large and the container mouth cannot be reliably closed.

Therefore, it is advantageous to connect a plastic strip to a type of container that is closed by screwing a cap onto the mouth and neck of the container, in order to securely close the mouth of the container.

However, when the strips are connected, the strips curve and protrude when the cap is closed, which not only obstructs screwing but also looks bad. Further, in the case where the cap is screwed onto the mouth and neck of the container, a certain amount of pitch is required for screwing the cap, which is inconvenient because the opening and closing operation of the mouth of the container cannot be performed with a single touch.

The present invention was devised in view of these points, and the technical problem is to provide a container mouth closure that prevents the cap from being lost and allows easy opening and closing operations of the cap.

[Means for Solving the Problems] In order to solve the above-mentioned technical problems, the present invention takes the following technical measures.

The container mouth closure of the present invention is provided on a flat container 1 and is attached to a mouth neck portion 3 having a locking protrusion 7 protruding toward the shoulder portion 6 side of the container 1. A ring 9 is provided at one end of the first support plate 8a to be rotatably inserted into the mouth and neck part 3, and a ring 9 is provided at one end of the second support plate 8b so as to be rotatably inserted into the mouth and neck part 3. A cap 10 to be fitted is provided,
The other ends of the first and second support plates 8a and 8b are connected to each other by a hinge 13, and an engaging protrusion 11 is provided on the inner peripheral surface of the cap 10 to engage the engaging protrusion 7 from below. This is what I did.

[Effect]

The cap 10 is attached and detached using the first and second support plates 8.
This is done with a and 8b rotated so as to escape from the shoulder 6 of the flat container 1 to the side.

Then, in this state, close the cap 10 and
When the second support plates 8a and 8b are rotated so as to match the shoulder portion 6 of the container 1, the engagement protrusion 11 on the inner peripheral surface of the cap 10 is pulled into the locking protrusion 7 protruding from the mouth and neck portion 3. The cap 10 becomes stuck and cannot be removed from the mouth and neck 3.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

A container opening 2 is placed on the top of a flat and slightly curved container 1.
A mouth-and-neck part 3 that forms a mouth-and-neck part 3 is provided in a protruding manner, and a spout plug 5 having a spout 4 in the center is fitted into this mouth-and-neck part 3. In addition, locking protrusions 7 are provided on both sides of the neck portion 3 toward both shoulders 6 of the container 1, respectively.

There is a first support plate 8a having a slightly elongated rectangular shape, and a ring 9 is provided at one end of the first support plate 8a to be rotatably fitted into the mouth and neck part 3.

Similarly, there is a second support plate 8b having an elongated rectangular shape, and a cap 10 rotatably fitted to the mouth and neck part 3 is attached to one end of the second support plate 8b.
is provided. The outer circumferential surface of the cap 10 is knurled, and the opposing inner circumferential surface of the cap 10, which is an extension of the axis of the support plate 8b, is formed into a slightly elongated locking protrusion for the mouth and neck portion 3. Engagement protrusions 11 that are engaged with each of 7 from below are provided in a protruding manner. Furthermore, a protrusion 12 that is fitted into the spout of the spout 5 is protruded from the inside center of the top plate of the cap 10.

These first and second support plates 8a, 8
The other ends of b are connected by a hinge 12. The first and second support plates 8a and 8b are connected to the cap 1.
0 are fitted into the mouth and neck part 3, they overlap each other, and in this state they are freely rotatable around the mouth and neck part 3.

When the first and second support plates 8a and 8b are aligned with the shoulder portion 6, the engagement protrusion 11 provided on the inner peripheral surface of the cap 10 engages with the locking protrusion 7 protruding from the mouth and neck portion 3. Since it goes around to the lower side and gets caught, even if you try to remove the cap 10 from the mouth and neck part 3, it will not come off.

[Effect of idea]

According to the present invention, when closing the container mouth 2, simply fit the cap 10 onto the mouth neck 3 and rotate the first and second support plates 8a, 8b to match the shoulder 6. Furthermore, when removing the cap 10, it is only necessary to perform the operations in the reverse order, so it is convenient to attach and detach the cap 10, that is, to open and close the container opening 2 with a single touch.

In addition, the cap 10 is fitted and locked to the mouth and neck part 3 by the engagement between the locking projection 7 and the engagement projection 11.
The container opening is securely closed by the point-hinged cap.

Furthermore, since the cap 10 is connected to the first and second support plates 8a and 8b, even if it is removed from the mouth and neck 3, it is retained by the support plates 8a and 8b.
There is no risk of loss.

Furthermore, when the cap is closed, the first and second support plates 8a and 8b are aligned with the shoulder portion 6 of the container 1 and do not protrude to the side of the container 1, so they do not get caught. Therefore, it does not get in the way when handling the container 1.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a perspective view showing the state of use, FIG. 3 is a longitudinal sectional front view, and FIG. 4 is a plan view. DESCRIPTION OF SYMBOLS 1... Container, 3... Mouth and neck, 6... Shoulder of container, 7... Locking protrusion, 8a... First support plate, 8
b...second support plate, 9...ring, 10...cap, 11...engaging protrusion, 13...hinge.

Claims (1)

[Claims for Utility Model Registration] Provided on a flat container 1, the shoulder portion 6 of this container 1
Mouth and neck portion 3 with a locking protrusion 7 protruding toward the side
A container opening closure that is attached to a container mouth, which includes a ring 9 that is rotatably fitted into the mouth and neck part 3 at one end of the first support plate 8a, and one end of the second support plate 8b. A cap 10 is provided which is rotatably fitted to the mouth and neck part 3, and the other ends of the first and second support plates 8a and 8b are connected to each other by a hinge 1.
3, and an engaging protrusion 11 protruding from the inner circumferential surface of the cap 10 to engage the engaging protrusion 7 from below.