JPH068057Y2 - Semi-kneaded container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a semi-kneaded container, and in particular, as the semi-kneaded contents A are discharged, the piston plug provided at the bottom of the cylindrical container rises, The present invention relates to a type in which the contents A can be taken out smoothly.

[Prior Art] Conventionally, as a container for storing a semi-paste such as toothpaste, a tube container for discharging the content A by deforming the container itself is known.

On the other hand, apart from this, there is one that can discharge the contents A without deforming the container.
There is one disclosed in Japanese Patent Publication No. 1-153772.

As shown in FIG. 6, this is configured by providing a pouring pump portion 2 on an upper portion of a tubular body 1 and fitting a piston plug 3 to a bottom portion of the tubular body 1, the piston plug 3 being a tubular body. Body 1
It is designed to be loaded after the contents A are filled in.

The piston plug has a structure that prevents air from flowing out.

[Problems to be solved by the device]

However, in the above-mentioned conventional one, the piston plug 3
There is a risk that the air in the container cannot be removed when the device is mounted and the air remains inside the container. Further, there is a problem that it becomes difficult to insert the piston plug 3 because the internal pressure of the container increases at the time of mounting.

Therefore, it is conceivable to provide an air vent hole in the piston plug so that the internal pressure of the container can be released, but there is a problem that the process becomes complicated because the air vent hole must be closed after the piston plug is mounted.

The present invention has been made in view of the above-mentioned matters, and it is a technical object to provide a container for semi-kneaded product in which internal pressure can be appropriately discharged, air does not remain, and a piston plug can be easily attached. And

[Means for Solving the Problems]

In order to solve the above technical problems, the present invention provides a tubular body 1
While the pouring pump section 2 is provided on the upper part of the
The container for semi-kneaded product in which the piston plug 3 was fitted to the bottom of the container had the following configuration.

That is, in the first configuration, the piston plug 3 includes the piston portion 4 formed of the elastic synthetic resin and the valve body 6, and the piston portion 4 has the air vent hole 5.

The valve body 6 is a columnar body 7 that fits into the piston portion 4.
A collar 8 for closing the air vent hole 5 from the outside of the container around the
Is provided.

The collar 8 is flexible and serves as a check valve that can flow only in the direction in which the internal pressure of the container is released to the outside.

Further, in the second configuration, the piston portion 4 has an air vent hole 5, the valve body 6 is an annular portion 9 that is fitted into the air vent hole 5, and a spring support arm extending from the annular portion 9. 12
And the valve portion 10 provided at the tip of the spring support arm 12.
It consists of

Then, the valve portion 10 is brought into pressure contact with the valve seat 11 protruding from the air vent hole 5 from the outside of the container to form a check valve capable of flowing only in the direction in which the internal pressure of the container is released to the outside.

[Action]

 The operation of the semi-kneaded container according to the first configuration will be described.

The pouring pump unit 2 provided on the upper portion of the tubular body 1 acts so as to generate a negative pressure, and sucks up the semi-kneaded product filled in the tubular body 1.

When the piston plug 3 is fitted to the bottom of the cylindrical body 1, the piston plug 3 is pushed in after filling the semi-kneaded product.

Then, the pressure of the content A that is about to flow out is applied to the air vent hole 5. Here, the collar portion 8 of the valve body 6 bends outward to release the internal pressure together with the contents A. After mounting the piston plug 3 in this way, when the pouring pump portion 2 is operated to discharge the contents A, the inside of the container becomes a negative pressure, but the collar portion 8 is adsorbed in the direction of the air vent hole 5. Therefore, air does not flow in.

Next, the operation of the container for semi-kneaded product according to the second configuration will be described.

When fitting the piston plug 3 to the bottom of the tubular body 1,
When the piston plug 3 is pushed in after filling with the semi-kneaded product, the air vent hole 5 is applied with the pressure of the content A which tends to flow out. Then, the valve portion 10 provided at the tip of the spring support arm 12 is pushed down, and the internal pressure is released together with the contents A.

The subsequent operation is similar to that of the first configuration.

〔Example〕

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

FIG. 1 shows the structure of the pouring pump unit 2. Since the structure of this portion is not the gist of the present invention, a brief description will be given. A piston 21 is slidably fitted in a cylinder portion 20 fixed to the tubular body 1. The piston 21 is connected to the discharge head portion 22 through a plurality of parts, and the content A can be raised from the outflow hole 23 formed in the upper portion of the piston 21 by moving the discharge head portion 22 downward. There is. The contents A that have risen in this way flow out through the ejection holes 24 provided in the ejection head portion 22. The piston 21 is a coil spring 2
5, the contents A are sucked up into the cylinder while the ball valve 26 is lifted upward when the finger is released from the ejection head portion 22.

The pouring pump unit 2 is not limited to this configuration example,
Well-known ones configured to generate a negative pressure can be used.

<First Embodiment> A first embodiment will be described with reference to FIGS. 1 to 3.

The pouring pump unit 2 is attached to the upper portion of a tubular body 1 formed in a tubular shape. A piston plug 3 is fitted in the lower part of the tubular body 1. A decorative ring 1a is fitted on the bottom of the tubular body 1.

The piston plug 3 includes a piston portion 4 made of elastic synthetic resin and formed into a substantially zigzag shape, and a valve body 6. The piston portion 4 has packing portions 4a and 4b formed on the upper and lower edges of the tubular portion 4c, and the tubular portion 4d extends from the inner wall of the tubular portion 4c. A bottom plate 4f is formed. The bottom plate 4f is provided with an air vent hole 5 and a valve body support portion 4e.

A through hole 4g is formed in the valve body support portion 4e, and a small diameter portion 4h is formed above the through hole 4g.

On the other hand, the valve body 6 is composed of a columnar body 7 that fits into the valve body supporting portion 4e, and a collar portion 8 that is integrally molded with the lower edge of the columnar body 7 and closes the air vent hole 5 from the outside of the container. Has been done. The collar 8 is flexible and serves as a check valve that can flow only in the direction in which the internal pressure of the container is released to the outside. An annular groove 6a is formed on the top of the columnar body 7, and the annular groove 6a is formed.
The valve body 6 is prevented from coming off by fitting the valve body 6 to the small diameter portion 4h.

The periphery of the collar portion 8 is in close contact with the bottom plate 4f, and the air vent hole 5 is located inside the close circle. Therefore, the collar portion 8 opens with the pressure from the air vent hole 5, but does not open with the pressure from the side where the collar portion 8 is exposed, that is, the outside of the tubular body 1.

Here, when the piston plug 3 is attached to the cylindrical body 1, the piston plug 3 is inserted from the lower portion of the cylindrical body 1 in the arrow F direction.

Then, the content A is compressed in the tubular body,
The contents A flow out from the air vent hole 5 while pushing the flange portion 8 apart. Here, the bottom cover 1b is attached to the bottom of the tubular body 1. The bottom cover 1b is provided with a hole 1c so as to release the negative pressure generated as the piston plug 3 rises. The pouring pump unit 2 provided on the upper portion of the tubular body 1 acts so as to generate a negative pressure, and sucks up the semi-kneaded product filled in the tubular body 1.

When the piston plug 3 is fitted to the bottom of the cylindrical body 1, the piston plug 3 is pushed in after filling the semi-kneaded product.

<Second Embodiment> FIGS. 4 and 5 show a second embodiment. The difference from the first embodiment will be described. First, the valve body 6 includes an annular portion 9
And four spring support arms 12 extending obliquely from the annular portion 9 and a trapezoidal valve portion 10 provided at the tip of the spring support arm 12 integrally molded with elastic synthetic resin. It is configured. The valve body 6 is mounted in the air vent hole 5.

On the other hand, a funnel-shaped valve seat 11 is provided on the inner side of the tubular portion 4d formed in the piston portion 4, and the tubular portion 4d is formed.
A fitting groove 4i into which the annular portion 9 is fitted is formed in the inner lower portion of the. When the valve body 6 is attached to the piston portion 4, the spring support arm 12 flexes slightly and the valve portion 10 comes into pressure contact with the valve seat 11.

As a result, the valve body 6 is a check valve that can flow only in the direction in which the internal pressure of the container is released.

When fitting the piston plug 3 to the bottom of the tubular body 1,
When the piston plug 3 is pushed in after filling with the semi-kneaded product, the air vent hole 5 is applied with the pressure of the content A which tends to flow out. Then, the valve portion 10 provided at the tip of the spring support arm 12 is pushed down, and the internal pressure is released together with the contents A.

The structure and operation of the other parts are the same as those in the first embodiment, and will be omitted.

[Effect of device]

According to the present invention, the internal pressure can be properly discharged only by mounting the piston plug having the valve body. Also, the valve body 6
Since is a check valve that can flow only in the direction in which the internal pressure of the container is released to the outside, external air does not enter the inside of the container after mounting, and a smooth and reliable discharge operation can be performed.
Also, the piston plug can be easily inserted.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a sectional view of a pouring pump portion, FIG. 2 is a partially cutaway perspective view of the first embodiment, and FIG. A partially cutaway sectional view of the embodiment,
FIG. 4 is a partially cutaway perspective view of the second embodiment, FIG. 5 is a partially cutaway sectional view of the second embodiment, and FIG. 6 is a sectional view showing a conventional semi-kneaded container. DESCRIPTION OF SYMBOLS 1 ... Cylindrical body, 2 ... Pouring pump part, 3 ... Piston plug, 4 ... Piston part, 5 ... Air vent hole, 6 ... Valve body, 7 ... Columnar body, 8 ... Collar part , 9 ... Annular part, 10 ... Valve part, 11 ... Valve seat, 12 ... Spring support arm, A ... Contents.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-81975 (JP, A) Actual opening 61-147767 (JP, U) Actual opening 57-193678 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A container for a semi-kneaded product in which a pouring pump portion 2 is provided on an upper portion of a tubular body 1 and a piston plug 3 is fitted on a bottom portion of the tubular body 1, wherein the piston plug 3 is elastically synthesized. A piston portion 4 made of resin and a valve body 6 are provided, the piston portion 4 has an air vent hole 5, and the valve body 6 has the air vent hole 5 around a columnar body 7 fitted to the piston portion 4. Is provided with a collar portion 8 for closing the container from the outside of the container, and the collar portion 8 is flexible and serves as a check valve that can flow only in the direction in which the internal pressure of the container is released. A container for semi-kneaded food. 2. A container for a semi-kneaded product in which a pouring pump portion 2 is provided on an upper portion of a tubular body 1 and a piston plug 3 is fitted on a bottom portion of the tubular body 1, wherein the piston plug 3 is elastically composite. A piston portion 4 made of resin and a valve body 6 are provided, the piston portion 4 has an air vent hole 5, the valve body 6 is an annular portion 9 which is fitted into the air vent hole 5, and the annular portion 9 Spring support arm 12 extending from the
And a valve portion 10 provided at the tip of the spring support arm, and the valve portion 1 is provided with the valve portion 10 protruding from the air vent hole 5.
1. A container for a semi-kneaded product, which is a check valve capable of flowing only in the direction of releasing the internal pressure of the container to the outside by pressing the container 1 from the outside of the container.