JP2553410Y2 - Pump type liquid dispensing container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid dispensing container to which the principle of a pump is applied. More specifically, a viscous liquid dispensing type in which a floating piston-like bottom rises as the content decreases. It relates to improvement of containers.

[0002]

[Prior art and problems] A floating piston is placed at the bottom of a container, and the contents such as viscous substances are filled without leaving gas inside, and the floating piston rises as the contents decrease, preventing the mixing of air. Pump-type dispensing container
It has been widely used in various fields. Generally, this type of container employs a filling assembly system in which a floating piston is first inserted into the bottom of the container to fill the contents, and then a container lid having a built-in pump-type discharge mechanism is attached to the container body. Was.

However, in the above-mentioned assembling method, in order to mount the container lid without leaving air on the upper surface of the content, the container is filled with more contents than necessary at the time of filling the contents, and the container lid is removed. At the time of fitting, a procedure such as discharging a surplus content by operating a pump-type discharging mechanism is required, and assembling work is troublesome and uneconomical. To avoid the inconvenience, after attaching the container lid body with a built-in pump type discharge mechanism to the container with the bottom lid not fitted, after filling the contents in the inverted state of the container and inserting the floating piston, An assembly method of fitting a bottom cover has been performed.

In this assembling method, when the floating piston is inserted into the container, it is difficult to insert the floating piston unless air existing between the surface of the contents and the floating piston is removed. Attach the floating piston,
After fitting, the hole is closed with a rubber stopper or the like.

[0005]

SUMMARY OF THE INVENTION The present invention provides a floating container having a cylindrical container, a pump-type discharge mechanism, a container lid body having the mechanism incorporated therein and fixed to the container, and a small hole for floating inside the container. Pis
And a liquid dispensing volume comprising an opening and closing means for closing the small hole.
The small hole of the floating piston is reduced in diameter toward the outside.
The opening / closing means may be inserted into the small hole from the tip end.
It has a diameter increasing part, a diameter reducing part, and a diameter increasing part in this order, and the maximum diameter is
The smallest diameter is larger than the diameter of the small hole of the floating piston.
A rod-shaped stopper smaller than the diameter of the small hole, wherein the stopper is
When pushing into the small hole of the piston, the small hole
A communication path is formed between the
The reduced diameter portion of the stoma and the reduced diameter portion of the plug come into contact
Characterized in that it is configured to close the communication passage
The above problem is solved by a liquid dispensing container. In a preferred embodiment, the liquid dispensing container of the present invention comprises the above liquid.
A body dispensing container, wherein the opening / closing means includes a third enlarged diameter portion and a bottom plate.
And the cylindrical portion has a floating piston around a small hole.
The partition wall and the third enlarged diameter portion are elastically engaged with each other.
Characterized in that it is configured to close the communication part
I do.

In the liquid dispensing device according to the present invention, when the floating piston is inserted into the container filled with the contents, the opening / closing mechanism located at the center of the bottom of the floating piston is pushed down, so that the opening / closing mechanism is opened. And the air existing between the upper surface of the liquid inside the container and the floating piston inserted is
The floating piston is discharged out of the floating piston, and the floating piston is smoothly and easily stored in the container. When the air discharge is completed, the opening / closing means is automatically closed by its own elastic recovery force.

The present invention relates to the improvement of the floating piston. The cylindrical container main body, the container lid of the pump-type discharge mechanism, the container outer lid and the bottom lid are made of various known materials and structures. It is needless to say that these can be used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. The liquid dispensing container according to the present invention shown in FIG.
And a container lid 2 incorporating the structure and attached to the container
0, a container outer cover 15, a floating piston 50 which is a feature of the container according to the present invention, and a floating piston opening / closing means 60;
The bottom container 40 is fitted to the cylindrical container 10 last.

In the present invention, after the container lid 20 containing the pump-type discharge mechanism 30 is attached to the cylindrical container 10 to which the bottom lid 40 is not fitted, the liquid content is stored in the inverted container. The object is filled.

As described above, the cylindrical container 10, the pump-type discharge mechanism 30, the container lid 20, and the container outer lid 15 according to the present invention are all of a conventionally known material, structure, and the like.
The method according to the assembling method can be arbitrarily used, and a detailed description thereof will be omitted. The use of these parts with new materials or structures is also applicable to the invention without departing from the scope of the invention.

Next, the floating piston 50 and the opening / closing means 6
0 will be described in detail. Floating piston 5 shown in FIG.
0 is generally made of a synthetic resin material which is rich in flexibility, and its outer diameter dimension and the hermetic structure of the outer portion that slides inside the cylindrical container 20 use the conventional technology, and need detailed explanation. do not do. In this embodiment, a concave portion 51 for receiving the outer cylinder 31 of the pump-type discharge mechanism 30 when the floating piston 50 rises is provided on the surface of the floating piston 50. A cylindrical portion 53 that opens downward is formed integrally with the main body of the piston 50 at the center of the bottom of the concave portion 51, and a partition 54 is provided at the center of the inner wall of the cylindrical portion 53, and at the center of the partition 54,
Preferably, a tapered hole 55 whose diameter is reduced downward is provided. Preferably, a plurality of slits 56 are provided below the partition wall 54 of the cylindrical portion 53 in order to increase the flexibility of the cylindrical portion 53. Further, the cylindrical portion 53
Is provided around the bottom of the container 20, and when the floating piston 50 is located at the lowermost part of the container 20, the bottom of the skirt 52 contacts the bottom surface of the bottom lid 40 to protect the cylindrical portion 53. It has become.

The opening / closing means 60 shown in FIG.
1 and a cylindrical portion 62 surrounding the periphery thereof are made of a synthetic resin integrally formed with a bottom plate 63, and a leakage liquid reservoir 64 is formed. The stepped rod portion 61 includes a tapered portion 65 that expands in diameter, a taper portion 67 that reduces in diameter, and an arc portion 66 that connects both taper portions in order from the upper surface thereof.
The bottom plate 6 having a diameter-increased taper portion 68 connected to a diameter-reduced taper portion 67 and a diameter-increased base taper portion 69.
3 and are formed integrally. The reduced diameter taper portion 67
Is the same as the taper of the tapered hole 55 in the floating piston 50, and the outer diameter of the arc portion 66 is set to be larger than the maximum diameter of the tapered hole 55.

By pushing the floating piston opening / closing means 60 into the tapered small hole portion 55 of the floating piston 50 by utilizing its elasticity, the diameter-reduced taper portion 6 is formed.
7 engages with the tapered portion of the small hole portion 55. In this state,
The partition 54 is a base taper portion 69 of a stepped rod-like portion of the opening / closing means.
By opening and closing, the opening and closing means 60
0, so that the airtightness of the opening / closing section can be maintained. FIG. 4 shows a state in which the opening / closing means 60 is mounted on the floating piston 50. The left half of FIG. 4 shows a state in which the opening / closing mechanism is closed, and the right half of FIG.
Indicates that the opening / closing mechanism has been opened.

Floating piston 5 equipped with opening / closing means 60
0, is hitting the insert into the cylindrical container 20, (floating piston 50 by pushing down the opening and closing hand <br/> stage 60,
Because they are inserted from above into the container 20 in the inverted state, open so that the closed hand <br/> stage 60 is depressed), the air present between the floating piston 50 which is inserted with the liquid upper surface of the inner container, and the taper of the small hole portion 55 of the floating piston, the annular gap occurring between the reduced diameter tapered portion 68 of the opening and closing means 60, and is discharged to the opened atmosphere. By inserting the floating piston 50 to a predetermined position in this state, the air in the container is completely discharged. When the air has been exhausted, the opening / closing means 60 is automatically returned to the closed position by the elastic recovery force of itself and the partition wall.

After the floating piston 50 is fitted without leaving the space of the container 10 containing the contents, the bottom lid 40 is fitted to the container 10, and the outer container 15 is detachably mounted. The assembly operation is completed. In the present invention, the bottom cover 40 also has a known structure that can be fitted to the cylindrical container 10, and its structure and other detailed descriptions are not required. Preferably, on the side surface of the bottom cover 40, between the bottom of the bottom cover 40 and the fitting portion of the container, the rise of the floating piston 50 prevents an increase in the pressure of the space layer between the bottom cover 40 and the floating piston. One having a through hole is used.

[0016]

According to the present invention, after the contents are filled in the inverted state of the container into the bottomless container to which the container lid body with the built-in pump type discharge mechanism is attached and the floating piston is inserted, In a liquid dispensing container adopting an assembly method in which a lid is fitted, when a floating piston is inserted into the container, air existing between the surface of the content and the floating piston can be easily and quickly discharged to the atmosphere. It is possible, and the assembling work can be rationalized and labor can be saved.

[Brief description of the drawings]

FIG. 1 is an assembled sectional view of an embodiment of a liquid dispensing container according to the present invention.

FIG. 2 is a sectional view of the floating piston of the embodiment shown in FIG.

FIG. 3 is a sectional view showing a floating piston opening / closing means of the embodiment shown in FIG. 1;

FIG. 4 is a sectional view showing a combination of a floating piston and its opening / closing means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylindrical container 15 Container outer lid 20 Container lid 30 Pump type discharge mechanism 40 Container bottom lid 50 Floating piston 53 Cylindrical part 54 Partition wall 55 Reducing taper hole 60 Floating piston opening / closing means 67 Reducing taper part

Claims (2)

(57) [Scope of request for utility model registration] 1. A cylindrical container, a pump-type discharge mechanism, a container lid body having the mechanism incorporated therein and fixed to the container, and a bottom inside the container.
A floating piston having a small hole floating as a body, and the small hole;
A liquid dispensing container comprising opening and closing means for closing the
The small hole of the floating piston is reduced in diameter toward the outside,
Is to be inserted into the small hole, the diameter of the enlarged portion (6
5), a reduced diameter portion (67) and an increased diameter portion (68) in this order.
The maximum diameter is larger than the diameter of the small hole of the floating piston.
The minimum diameter is a rod-shaped stopper smaller than the diameter of the small hole.
When the stopper is pushed into the small hole of the floating piston.
A communication path is formed between the hole and the small diameter part of the stopper, and the pressure is released.
When the small hole of the small hole and the plug
It is configured so that the reduced diameter portion contacts and closes the communication passage
A liquid dispensing container characterized by the above-mentioned. 2. The liquid dispensing container according to claim 1, wherein said opening / closing means comprises a third enlarged portion (69) and a bottom plate (63).
And a cylindrical portion (62), and the floating piston has a small hole
A partition wall (54), and the partition wall and the third enlarged diameter portion
It is configured to elastically engage and close the communication portion.
A liquid dispensing container characterized in that: