JPH0744632Y2 - Valve device for dispensing container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a valve device for a pouring container, and more specifically, a pouring device provided on a container having a pump mechanism that causes a pressure difference between the inside and the outside of the container. The present invention relates to a valve device for a container.

(Prior Art) Generally, a valve device is provided in a container for pouring out the contents by causing a pressure difference between the inside and the outside of the container. As such a valve device, for example, the actual open Sho 60-33048
The ones disclosed in Japanese Patent Publication No. 61-146261 and Japanese Utility Model Publication No. 61-146261 are known.

The conventional valve devices disclosed in these publications are configured by attaching a valve plate 7 which is a separate member to a base having a through hole as shown in FIG. 5 and FIG. 6, respectively.

Further, Japanese Utility Model Laid-Open No. 61-153774 discloses a valve device as shown in FIG. In this conventional valve device, the inner plate 7 is integrally molded in the flow hole of the base portion, and the valve plate 7 is configured to contact the side surface of the flow port portion in a wedge shape to prevent backflow. .

(Problems to be solved by the invention) However, in the conventional valve device as shown in FIG. 5 and FIG. 6, the valve plate 7 is a separate body, so that the number of parts is increased and the manufacturing process is increased. There is a drawback that the process and the assembly process are complicated and the cost is high.

On the other hand, in the case where the valve plate 7 in the conventional valve device shown in FIG. 7 is integrally formed, the opening / closing of the flow opening portion is caused by the dimensional difference between the long side and the short side of the triangular valve plate. Since the valve function is maintained by a slight dimensional difference, it is necessary to strictly set the dimensions of the valve plate and the distance between the valve plate 7 and the flow port. It was

Moreover, since friction with the inner wall of the flow port is unavoidable during movement of the valve plate 7, smoothness of valve operation is impaired as compared with those shown in FIGS. There was a risk that the valve would be pushed downward if added.

The object of the present invention is to solve the above problems in the conventional valve device. The valve operation is smooth and profitable, and the number of parts can be reduced and the manufacturing and assembling are easy. To provide a valve device for a container.

(Means for Solving the Problem) The present invention is a valve device for a pouring container, which is configured as follows in order to solve the above-mentioned technical problem. That is, the present invention relates to a valve device 2 for a pouring container provided in a container having a pump mechanism 1 that causes a pressure difference between the inside and the outside of the container, which is attached to the mouth part of the container and is substantially in the center part. A synthetic resin base 3 having a hole 4 formed therein, and a valve member 7 formed integrally with the upper surface of the synthetic resin base 3 at a position apart from the hole 4.
A connecting portion 8 in which the valve member 7 is integrally connected to the synthetic resin base 3 via the first hinge 5, and a second connecting portion 8 is provided in the connecting portion 8.
The valve plate 7a is connected through a hinge 6 and covers the hole 4 from the upper surface and has a size capable of closing, and one engaging portion 9 formed on the connecting portion 8. When the container valve device 2 bends the valve member 7 by the first hinge 5 to set the valve plate 7a in the operating position, the engaging portion 9
It is characterized in that it is provided with the other engaging portion 10 formed on the synthetic resin base 3 in order to prevent the valve member 7 from rising and returning.

(Operation) According to the valve device for a dispensing container of the present invention, in the valve member 7 which is formed upright from the upper surface of the synthetic resin base 3, the valve plate 7a closes the hole 4 of the synthetic resin base 3. As described above, one of the engaging portions 9 bent from the first hinge 5 and provided on the connecting portion 8 is engaged with the other engaging portion 10 formed on the synthetic resin base 3 to be in an operating state. Here, the second hinge 6 is bendable between the connecting portion 8 and the valve plate 7a, so that the valve plate 7a can be opened and closed with respect to the hole 4.

Therefore, when the pump mechanism 1 causes a predetermined pressure difference between the inside and the outside of the container, the valve plate 7a is lifted up with the second hinge 6 as a fulcrum, and the hole 4 is opened to distribute the contents. When a reverse pressure difference occurs, the valve plate 7a rotates about the second hinge 6 to close the hole 4.

(Embodiment) Hereinafter, a valve device for a dispensing container according to the present invention will be described in more detail with reference to an embodiment shown in FIGS. 1 to 4.

The valve device for a dispensing container according to this embodiment is used by being attached to a container body A formed in a cylindrical shape. As shown in FIGS. 1 and 4, the container body A is provided with a mouth tube portion A1 and a bottom lid A3 is provided on the lower end side thereof. Further, a movable insole A2 is provided in the container body A, and the contents are filled from the insole A2 to the mouth cylinder portion A1.

The pump mechanism 1 and the valve mechanism 2 are fitted and attached to the mouth cylinder portion A1 of the container body A. The pump mechanism 1 is made of a soft synthetic resin and has a semi-dome-shaped bent portion from the base.
B1 is extended, and a pouring nozzle B2 is formed on the top of the bent portion B1. A plug B4 is fitted and attached to the discharge port B3 of the pouring nozzle B2. Also, this discharge port B3
A check valve B5 is provided at the back of the. A cap C is attached to the pump mechanism 1.

As shown in FIG. 2, the valve device 2 has a hole 4 near the center thereof.
A base 3 made of synthetic resin, and a concave portion 3a formed on the upper surface of the base 3 by forming a rectangular region radially outward from a part of a circular region centered on the hole 4. Is provided. At the outermost end of this rectangular region, a valve member 7 is integrally formed on the synthetic resin base 3 so as to stand from the upper surface via a first hinge 5.

The valve member 7 is made of a synthetic resin base 3 by the first hinge 5.
As already described, the valve member 7 is connected to the first hinge 5 by the connecting portion 8 and the valve member 7 which is connected to the connecting portion via the second hinge 6. And a plate 7a. The first hinge 5, the connecting portion 8 and the second hinge 6 forming the valve member 7 are formed in a shape and size corresponding to the rectangular area of the recess 3a described above, and the valve plate 7a is formed in the circular area of the recess 3a. It has a corresponding shape and size.

In an operable state, the valve member 7 is laid down sideways so that the first hinge 5 is bent from the state of standing up from the upper surface of the synthetic resin base 3 and stored in the recess 3a. However, it is necessary to fix this because if you just lay it down, you will stand up again. Therefore, the connecting portion 8 is formed with protrusions as one engaging portion 9 on both side edges. On the other hand, the engaging portion 9 is provided on both side walls of the rectangular region of the recess 3a in the synthetic resin base 3 into which the connecting portion 8 is fitted.
A recessed portion which is the other engaging portion 10 for receiving is formed.

At the time of assembly, the valve member 7 is bent by the first hinge 5 and fitted into the recess 3a. As a result, the engaging projection 9 on the side surface of the connecting portion 8 is locked to the engaging recess 10 on the side surface of the rectangular area of the concave portion 3a of the synthetic resin base 3, so that the valve member 7 is fixed in a sideways state. As a result, the valve plate 7a of the valve member 7 is held at the position where it closes the hole 4. However, the valve plate 7a is rotatable around the second hinge 6 as a fulcrum, and therefore, the valve plate 7a can be rotated.
The hole 4 is opened and closed by the force acting on 7a.

Next, the operation of the valve device for a dispensing container according to this embodiment will be described.

When the dispensing nozzle B2 is pushed down, the bent portion B1 bends, but in this case, the check valve B5 is open and the valve device 2 is closed.

Here, when the pouring nozzle B2 is released, the pump mechanism 1 becomes a negative pressure, the check valve B5 is closed, and the valve device 2 is opened. Then, the content is sucked into the pump mechanism 1 and rises.
Then, when the dispensing nozzle B2 is pushed down again, the check valve B5 is opened and the contents are dispensed from the discharge port B3. Since the valve device 2 is in the closed state, the contents will not return. Thus, as the contents are sequentially discharged, the bottom A2 moves upward with it.

FIG. 3 shows a valve device for a dispensing container according to another embodiment, and the portion of the valve device for a dispensing container of this embodiment different from the embodiment shown in FIG. 1 is an engaging portion. That is, in the valve device for a dispensing container according to the embodiment shown in FIG. 3, one engaging portion 9 is composed of a protrusion provided on the lower surface of the connecting portion 8. Therefore, the other engaging portion 10 is a recess of the synthetic resin base 3.
The bottom surface of the rectangular area in 3a is formed with a recess into which the projection, which is the engaging portion 9, is fitted. The operation of the valve device for a dispensing container according to this embodiment is the same as that of the above-mentioned embodiment, and therefore its explanation is omitted.

(Effects of the Invention) As described above, according to the valve device for a dispensing container of the present invention, since there is no friction with the inner wall of the flow opening portion when the valve plate 7a is moved, the valve plate can be operated smoothly. Even if a pressure outside the predetermined range is applied, there is no fear that the valve plate will be pushed downward.

Further, according to the present invention, the number of parts can be reduced as compared with the conventional valve device in which the valve plate is formed by a separate member, and therefore the manufacturing cost can be reduced and the assembly can be performed. The valve member 7 is bent at the first hinge so that the valve member 7 is laid down and the engaging portion 9 is locked to the engaging portion 10 on the synthetic resin base 3 side. The efficiency of can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an entire dispensing container provided with a valve device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the valve device shown in FIG. 1 attached to the dispensing container. 3 and FIG. 3 are perspective views showing a valve device for a dispensing container according to another embodiment of the present invention, and FIG. 4 is a longitudinal cross-sectional view showing the entire dispensing container shown in an exploded state in FIG. Fig. 5 is a sectional view showing a conventional valve device by partially breaking the pouring container, and Fig. 6 is a partial sectional view similar to Fig. 5 showing another conventional device, FIG. 7 is a partial sectional view similar to FIG. 5 showing still another conventional device. 1 ... Pump mechanism, 2 ... Valve device, 3 ... Synthetic resin base, 4 ... Hole, 5 ... First hinge, 6 ... Second hinge, 7 ... Valve member, 7a ... Valve plate, 8 ... Connection part, 9 ...
One engaging part, 10 ... The other engaging part.

Claims (1)

[Scope of utility model registration request] 1. A valve device 2 for a pouring container provided in a container having a pump mechanism 1 for producing a pressure difference between the inside and the outside of the container, the valve device being attached to the mouth of the container and substantially at the center. The valve body 7 includes a synthetic resin base 3 having a hole 4 formed therein, and a valve member 7 that is integrally formed by standing upright from the upper surface of the synthetic resin base 3 at a position apart from the hole 4. A connecting portion 8 in which the member 7 is integrally connected to the synthetic resin base 3 via the first hinge 5, and a second connecting portion 8 is provided on the connecting portion 8.
The valve plate 7a is connected through a hinge 6 and has a size capable of closing the hole 4 so as to cover the hole 4 from the upper surface, and one engaging portion 9 formed in the connecting portion 8. When the container valve device 2 bends the valve member 7 by the first hinge 5 and sets the valve plate 7a in the operating position, the container valve device 2 engages with the engaging portion 9 to restore the valve member 7 from the rising state. A valve device for a dispensing container, characterized in that the valve device is provided with the other engaging portion 10 formed on the synthetic resin base 3 to prevent it.